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<script type="text/javascript" src="/corehtml/pmc/jatsreader/ptpmc_3.22/js/jr.boots.min.js"> </script><title>Analysis of Nanoparticle Effects on Maturation of Monocyte Derived Dendritic Cells In Vitro - National Cancer Institute’s Nanotechnology Characterization Laboratory Assay Cascade Protocols - NCBI Bookshelf</title>
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<meta name="citation_inbook_title" content="National Cancer Institute’s Nanotechnology Characterization Laboratory Assay Cascade Protocols [Internet]">
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<meta name="citation_title" content="Analysis of Nanoparticle Effects on Maturation of Monocyte Derived Dendritic Cells In Vitro">
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<meta name="citation_publisher" content="National Cancer Institute (US)">
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<meta name="citation_date" content="2022/11">
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<meta name="citation_author" content="Timothy M. Potter">
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<meta name="citation_author" content="Edward Cedrone">
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<meta name="citation_author" content="Barry W. Neun">
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<meta name="citation_author" content="Susan L. Strobl">
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<meta name="citation_author" content="Liubov Zaritskaya">
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<meta name="citation_author" content="Marina A. Dobrovolskaia">
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<meta name="citation_pmid" content="39012971">
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<meta name="citation_doi" content="10.17917/0YC3-6793">
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<meta name="citation_fulltext_html_url" content="https://www.ncbi.nlm.nih.gov/books/NBK604908/">
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<meta name="DC.Title" content="Analysis of Nanoparticle Effects on Maturation of Monocyte Derived Dendritic Cells In Vitro">
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<meta name="DC.Publisher" content="National Cancer Institute (US)">
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<meta name="DC.Contributor" content="Timothy M. Potter">
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<meta name="DC.Contributor" content="Edward Cedrone">
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<meta name="DC.Contributor" content="Barry W. Neun">
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<meta name="DC.Contributor" content="Susan L. Strobl">
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<meta name="DC.Contributor" content="Liubov Zaritskaya">
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<meta name="DC.Contributor" content="Marina A. Dobrovolskaia">
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<meta name="description" content="Dendritic cells (DC) are antigen-presenting cells. They play an important role in initiation and regulation of the cellular immune response. Maturation of dendritic cells is achieved by inflammatory cytokines (e.g. TNFα) or pathogen associated molecular patterns (e.g. bacterial lipopolysaccharide, LPS). This protocol can be used to study the in vitro efficacy of nanoparticle-based vaccine formulations. In addition, it can also be used to assess the potential cytotoxicity of nanoparticle formulations to dendritic cells, and the nanoparticle effects on DC maturation in response to traditional inflammatory stimuli such as bacterial lipopolysaccharide.">
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<meta name="og:description" content="Dendritic cells (DC) are antigen-presenting cells. They play an important role in initiation and regulation of the cellular immune response. Maturation of dendritic cells is achieved by inflammatory cytokines (e.g. TNFα) or pathogen associated molecular patterns (e.g. bacterial lipopolysaccharide, LPS). This protocol can be used to study the in vitro efficacy of nanoparticle-based vaccine formulations. In addition, it can also be used to assess the potential cytotoxicity of nanoparticle formulations to dendritic cells, and the nanoparticle effects on DC maturation in response to traditional inflammatory stimuli such as bacterial lipopolysaccharide.">
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id="jr-pm-left" class="hidden"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 40 800" preserveAspectRatio="none"><text font-stretch="ultra-condensed" x="800" y="-15" text-anchor="end" transform="rotate(90)" font-size="18" letter-spacing=".1em">Previous Page</text></svg></nav><nav id="jr-pm-right" class="hidden"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 40 800" preserveAspectRatio="none"><text font-stretch="ultra-condensed" x="800" y="-15" text-anchor="end" transform="rotate(90)" font-size="18" letter-spacing=".1em">Next Page</text></svg></nav><nav id="jr-fip" class="hidden"><nav id="jr-fip-term-p"><input type="search" placeholder="search this page" id="jr-fip-term" autocorrect="off" autocomplete="off" /><a id="jr-fip-mg" class="wsprkl btn" title="Find"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 550 600" preserveAspectRatio="none"><path fill="none" stroke="#000" stroke-width="36" stroke-linecap="round" style="fill:#FFF" d="m320,350a153,153 0 1,0-2,2l170,170m-91-117 110,110-26,26-110-110"></path></svg></a><a id="jr-fip-done" class="wsprkl btn" title="Dismiss find">✘</a></nav><nav id="jr-fip-info-p"><a id="jr-fip-prev" class="wsprkl btn" title="Jump to previuos match">◀</a><button id="jr-fip-matches">no matches yet</button><a id="jr-fip-next" class="wsprkl btn" title="Jump to next match">▶</a></nav></nav></div><div id="jr-epub-interstitial" class="hidden"></div><div id="jr-content"><article data-type="main"><div class="main-content lit-style" itemscope="itemscope" itemtype="http://schema.org/CreativeWork"><div class="meta-content fm-sec"><div class="fm-sec"><h1 id="_NBK604908_"><span class="label">NCL Method ITA-14</span><span class="title" itemprop="name">Analysis of Nanoparticle Effects on Maturation of Monocyte Derived Dendritic Cells In Vitro</span></h1><div class="subtitle whole_rhythm">Version 5</div><p class="contribs">Potter TM, Cedrone E, Neun BW, et al.</p><p class="fm-aai"><a href="#_NBK604908_pubdet_">Publication Details</a></p></div></div><div class="jig-ncbiinpagenav body-content whole_rhythm" data-jigconfig="allHeadingLevels: ['h2'],smoothScroll: false" itemprop="text"><div id="ncipr81.s1"><h2 id="_ncipr81_s1_">1. Introduction</h2><p>Dendritic cells (DC) are antigen-presenting cells. They play an important role in initiation and regulation of the cellular immune response. Maturation of dendritic cells is achieved by inflammatory cytokines (e.g. TNFα) or pathogen associated molecular patterns (e.g. bacterial lipopolysaccharide, LPS). This protocol can be used to study the <i>in vitro</i> efficacy of nanoparticle-based vaccine formulations. In addition, it can also be used to assess the potential cytotoxicity of nanoparticle formulations to dendritic cells, and the nanoparticle effects on DC maturation in response to traditional inflammatory stimuli such as bacterial lipopolysaccharide.</p></div><div id="ncipr81.s2"><h2 id="_ncipr81_s2_">2. Principles</h2><p>This document describes a protocol for assessing the effect of nanoparticles on the maturation of dendritic cells derived from peripheral blood monocytes. Monocytes are cultured for 5-7 days in the presence of Interleukin 4 (IL-4) and granulocyte macrophage-colony stimulating factor (GM-CSF) to allow differentiation into immature dendritic cells. On day 5-7 of culture, LPS and/or the nanoparticles are added to the cell cultures and incubation is continued for an additional 24-48 hr to stimulate maturation of DC. To test for the particles’ potential ability to interfere with inflammation-induced DC maturation, LPS can be combined with nanoparticles prior to addition to the cells or after exposure to nanoparticle treatment. The choice of the treatment regimen depends on the project goal.</p></div><div id="ncipr81.s3"><h2 id="_ncipr81_s3_">3. Reagents, Materials, and Equipment</h2><blockquote><p><i>Note: The NCL does not endorse any of the suppliers listed below; these reagents were used in the development of the protocol and their inclusion is for informational purposes only. Equivalent supplies from alternate vendors can be substituted. Please note that suppliers may undergo a name change due to a variety of factors. Brands and part numbers typically remain consistent but may also change over time</i>.</p></blockquote><dl id="ncipr81.l1" class="temp-labeled-list"><dl class="bkr_refwrap"><dt>3.1.</dt><dd id="ncipr81.lt1"><p class="no_top_margin">Reagents
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<dl id="ncipr81.l2" class="temp-labeled-list"><dl class="bkr_refwrap"><dt>3.1.1.</dt><dd id="ncipr81.lt2"><p class="no_top_margin">Human blood from normal donors</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.2.</dt><dd id="ncipr81.lt3"><p class="no_top_margin">Ficoll-Paque Premium (GE Life Sciences, 17-5442-02)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.3.</dt><dd id="ncipr81.lt4"><p class="no_top_margin">Phosphate Buffered Saline (PBS) (GE Life Sciences, Hyclone SH30256.01)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.4.</dt><dd id="ncipr81.lt5"><p class="no_top_margin">LPS O55:B5 (Sigma, L6529), LPS K12 E.coli (Invivogen, tlrl-peklps) or equivalent</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.5.</dt><dd id="ncipr81.lt6"><p class="no_top_margin">Fetal Bovine Serum (FBS) (GE Life Sciences, Hyclone, SH30070.03)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.6.</dt><dd id="ncipr81.lt7"><p class="no_top_margin">RPMI-1640 (GE Life Sciences, HyClone, SH30096.01)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.7.</dt><dd id="ncipr81.lt8"><p class="no_top_margin">Penicillin streptomycin solution (GE Life Sciences, Hyclone, SV30010)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.8.</dt><dd id="ncipr81.lt9"><p class="no_top_margin">L-glutamine (GE Life Sciences, Hyclone, SH30034.01)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.9.</dt><dd id="ncipr81.lt10"><p class="no_top_margin">β-mercaptoethanol (Sigma-Aldrich, M7522)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.10.</dt><dd id="ncipr81.lt11"><p class="no_top_margin">Trypan Blue solution (Gibco, 15250-061)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.11.</dt><dd id="ncipr81.lt12"><p class="no_top_margin">HEPES (Gibco, 15630)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.12.</dt><dd id="ncipr81.lt13"><p class="no_top_margin">Sodium Pyruvate, 100mM [100x] (Gibco, 11360-070)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.13.</dt><dd id="ncipr81.lt14"><p class="no_top_margin">MEM NEAA, 100x (Gibco, 11140-050)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.14.</dt><dd id="ncipr81.lt15"><p class="no_top_margin">Human AB serum (GeminiBio, GemCell, 100-512)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.15.</dt><dd id="ncipr81.lt16"><p class="no_top_margin">DNAse I, 10 units/μL (Sigma-Aldrich, Roche, 04 716 728 001)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.16.</dt><dd id="ncipr81.lt17"><p class="no_top_margin">Human IL-4 (PeprotTech, 200-04)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.17.</dt><dd id="ncipr81.lt18"><p class="no_top_margin">Human GM-CSF (PeproTech 300-03)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.18.</dt><dd id="ncipr81.lt19"><p class="no_top_margin">Simultest Isotype control IgG<sub>1</sub>/IgG<sub>2a</sub>-PE (BD 340041)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.19.</dt><dd id="ncipr81.lt20"><p class="no_top_margin">HLA-ABC- FITC (BD Pharmingen, 555552)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.20.</dt><dd id="ncipr81.lt21"><p class="no_top_margin">HLA-DR-PE (BD, 347367)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.21.</dt><dd id="ncipr81.lt22"><p class="no_top_margin">CD86-FITC (BD Pharmingen, 555657)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.22.</dt><dd id="ncipr81.lt23"><p class="no_top_margin">CD80-PE (BD Pharmingen, 557227)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.23.</dt><dd id="ncipr81.lt24"><p class="no_top_margin">CD14- Alexa Fluor 488 (BD Pharmingen, 557700)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.24.</dt><dd id="ncipr81.lt25"><p class="no_top_margin">CD83-PE (Beckman Coulter Life Sciences, PN IM2218U)</p></dd></dl><dl class="bkr_refwrap"><dt>3.1.25.</dt><dd id="ncipr81.lt26"><p class="no_top_margin">Paraformaldehyde, 20% (Tousimis, 1008A)</p></dd></dl></dl></p></dd></dl><dl class="bkr_refwrap"><dt>3.2.</dt><dd id="ncipr81.lt27"><p class="no_top_margin">Materials
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<dl id="ncipr81.l3" class="temp-labeled-list"><dl class="bkr_refwrap"><dt>3.2.1.</dt><dd id="ncipr81.lt28"><p class="no_top_margin">Pipettes, 5 to 25 mL</p></dd></dl><dl class="bkr_refwrap"><dt>3.2.2.</dt><dd id="ncipr81.lt29"><p class="no_top_margin">Pipettors, 2 to 1000 μL</p></dd></dl><dl class="bkr_refwrap"><dt>3.2.3.</dt><dd id="ncipr81.lt30"><p class="no_top_margin">Pipette tips, 2 to 1000 μL</p></dd></dl><dl class="bkr_refwrap"><dt>3.2.4.</dt><dd id="ncipr81.lt31"><p class="no_top_margin">6-, 24-, and 96-well TC plates</p></dd></dl><dl class="bkr_refwrap"><dt>3.2.5.</dt><dd id="ncipr81.lt32"><p class="no_top_margin">96-well polypropylene plate</p></dd></dl><dl class="bkr_refwrap"><dt>3.2.6.</dt><dd id="ncipr81.lt33"><p class="no_top_margin">T100 TC flasks, low profile, CELLBIND surface (Corning, 3073)</p></dd></dl><dl class="bkr_refwrap"><dt>3.2.7.</dt><dd id="ncipr81.lt34"><p class="no_top_margin">15, 50 and 250 mL polypropylene tubes (Falcon)</p></dd></dl><dl class="bkr_refwrap"><dt>3.2.8.</dt><dd id="ncipr81.lt35"><p class="no_top_margin">Vacuum disposable filtration unit (Millipore)</p></dd></dl></dl></p></dd></dl><dl class="bkr_refwrap"><dt>3.3.</dt><dd id="ncipr81.lt36"><p class="no_top_margin">Equipment
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<dl id="ncipr81.l4" class="temp-labeled-list"><dl class="bkr_refwrap"><dt>3.3.1.</dt><dd id="ncipr81.lt37"><p class="no_top_margin">Centrifuge</p></dd></dl><dl class="bkr_refwrap"><dt>3.3.2.</dt><dd id="ncipr81.lt38"><p class="no_top_margin">Refrigerator</p></dd></dl><dl class="bkr_refwrap"><dt>3.3.3.</dt><dd id="ncipr81.lt39"><p class="no_top_margin">Freezer, −20°C and −80°C</p></dd></dl><dl class="bkr_refwrap"><dt>3.3.4.</dt><dd id="ncipr81.lt40"><p class="no_top_margin">Cell culture incubator with 5% CO<sub>2</sub> and 95% humidity</p></dd></dl><dl class="bkr_refwrap"><dt>3.3.5.</dt><dd id="ncipr81.lt41"><p class="no_top_margin">Biohazard safety cabinet approved for level II handling of biological material</p></dd></dl><dl class="bkr_refwrap"><dt>3.3.6.</dt><dd id="ncipr81.lt42"><p class="no_top_margin">Inverted microscope</p></dd></dl><dl class="bkr_refwrap"><dt>3.3.7.</dt><dd id="ncipr81.lt43"><p class="no_top_margin">Vortex</p></dd></dl><dl class="bkr_refwrap"><dt>3.3.8.</dt><dd id="ncipr81.lt44"><p class="no_top_margin">Hemacytometer</p></dd></dl><dl class="bkr_refwrap"><dt>3.3.10.</dt><dd id="ncipr81.lt45"><p class="no_top_margin">Flow Cytometer</p></dd></dl><dl class="bkr_refwrap"><dt>3.3.11.</dt><dd id="ncipr81.lt46"><p class="no_top_margin">Flow cytometry software for data analysis</p></dd></dl></dl></p></dd></dl></dl></div><div id="ncipr81.s4"><h2 id="_ncipr81_s4_">4. Preparation of Reagents</h2><dl id="ncipr81.l5" class="temp-labeled-list"><dl class="bkr_refwrap"><dt>4.1.</dt><dd id="ncipr81.lt47"><p class="no_top_margin">
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<u>Medium for cryopreservation of cells (if applicable)</u>
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</p><p>RPMI-1640</p><p>20% FBS</p><p>10% DMSO</p><p>2 mM L-Glutamine</p><p>2.5 mM HEPES</p><p><b><i>Note</i></b> : Fresh PBMC isolated from fresh whole blood are ideal. When fresh cells are not available, cryopreservation may be used. Various media in addition to that listed above are available and include among others a) ultrapure FBS+10% DMSO; b) IMDM + 20% FBS + 10% DMSO + trehalose 50 μg/mL [<a class="bibr" href="#ncipr81.ref1" rid="ncipr81.ref1">1</a>]; c) CryoStor<sup>®</sup> CS10 (StemCell Technologies Catalog #07930). Labs are advised to select the cryopreservation medium empirically based on the cell viability and functionality analysis in comparison to freshly derived PBMC.</p></dd></dl><dl class="bkr_refwrap"><dt>4.2.</dt><dd id="ncipr81.lt48"><p class="no_top_margin">
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<u>DC Culture Medium</u>
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</p><p>RPMI-1640</p><p>10% FBS (all new lots must be screened for good DC generation)</p><p>2 mM L-Glutamine</p><p>25 mM HEPES</p><p>100 U/mL penicillin</p><p>100 μg/mL streptomycin</p><p>0.1 mM MEM NEAA</p><p>1 mM Sodium Pyruvate</p><p>50 μM 2-Mercaptoethanol</p></dd></dl><dl class="bkr_refwrap"><dt>4.3.</dt><dd id="ncipr81.lt49"><p class="no_top_margin">
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<u>FACS blocking buffer</u>
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</p><p>PBS</p><p>5% Human AB serum</p></dd></dl><dl class="bkr_refwrap"><dt>4.4.</dt><dd id="ncipr81.lt50"><p class="no_top_margin">
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<u>FACS staining buffer</u>
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</p><p>PBS</p><p>0.5% BSA</p><p>0.1% NaN<sub>3</sub> (optional)</p></dd></dl><dl class="bkr_refwrap"><dt>4.5.</dt><dd id="ncipr81.lt51"><p class="no_top_margin">
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<u>Fixative</u>
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</p><p>PBS</p><p>1% Paraformaldehyde</p></dd></dl><dl class="bkr_refwrap"><dt>4.6.</dt><dd id="ncipr81.lt52"><p class="no_top_margin">
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<u>GM-CSF</u>
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</p><p>Prepare stock solution by reconstituting commercial lyophilized cytokine Leukine Sargramostim in water to a concentration of 1.4 x 10<sup>6</sup> IU/mL (250 μg/mL). Store in <u>glass</u> vials at 4°C. Do not freeze. On the day of experiment add to DC media to a final concentration of 100 IU/mL.</p></dd></dl><dl class="bkr_refwrap"><dt>4.7.</dt><dd id="ncipr81.lt53"><p class="no_top_margin">
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<u>IL-4</u>
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</p><p>Prepare stock solution by reconstituting commercial lyophilized cytokine to a concentration of 100 μg/mL in PBS. Prepare small aliquots and store them at −80°C. On the day of experiment add to DC media to a final concentration of 50 ng/mL.</p></dd></dl><dl class="bkr_refwrap"><dt>4.8.</dt><dd id="ncipr81.lt54"><p class="no_top_margin">
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<u>Vehicle Control</u>
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</p><p>Vehicle control is the buffer or media used to formulate test nanomaterials. Common excipients used in nanoformulations are trehalose, sucrose, and albumin. However, other reagents and materials are also used alone or in combination. Vehicle control should match formulation buffer of the test-nanomaterial by both composition and concentration. This control can be skipped if nanoparticles are stored in PBS or saline.</p></dd></dl></dl></div><div id="ncipr81.s5"><h2 id="_ncipr81_s5_">5. Preparation of Test Nanoparticles</h2><p>This assay requires 2.5 mL of nanoparticle solution, at a concentration 2X the highest tested concentration. Nanoparticles should be dissolved/resuspended in complete DC culture medium. The concentration is selected based on the plasma concentration of the nanoparticle at the intended therapeutic dose. For the purpose of this protocol this concentration is called “theoretical plasma concentration”. Considerations for estimating theoretical plasma concentration were reviewed elsewhere [<a class="bibr" href="#ncipr81.ref2" rid="ncipr81.ref2">2</a>] and are summarized in <a href="/books/NBK604908/box/ncipr81.box1/?report=objectonly" target="object" rid-ob="figobncipr81box1">Box 1</a> below.</p><div id="ncipr81.box1" class="box boxed-text-box whole_rhythm hide-overflow"><h3><span class="label">Box 1</span><span class="title">Example Calculation to Determine Nanoparticle Concentration for In Vitro Tests</span></h3><p>In this example, we assume a mouse dose of 123 mg/kg. Therefore, the scaled equivalent human dose would be:
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<div class="pmc_disp_formula whole_rhythm clearfix" id="ncipr81.deq1"><div class="inline_block pmc_inline_block pmc_va_middle pmc_hide_overflow twelve_col"><math id="ncipr81.eq1" display="block"><mrow><mi>H</mi><mi>u</mi><mi>m</mi><mi>a</mi><mi>n</mi><mtext> </mtext><mi>d</mi><mi>o</mi><mi>s</mi><mi>e</mi><mo>=</mo><mfrac><mrow><mi>m</mi><mi>o</mi><mi>u</mi><mi>s</mi><mi>e</mi><mtext> </mtext><mi>d</mi><mi>o</mi><mi>s</mi><mi>e</mi></mrow><mrow><mn>12.3</mn></mrow></mfrac><mo>=</mo><mfrac><mrow><mn>123</mn><mtext> </mtext><mi>m</mi><mi>g</mi><mo>/</mo><mi>k</mi><mi>g</mi></mrow><mrow><mn>12.3</mn></mrow></mfrac><mo>=</mo><mn>10</mn><mtext> </mtext><mi>m</mi><mi>g</mi><mo>/</mo><mi>k</mi><mi>g</mi></mrow></math></div><div class="inline_block pmc_inline_block pmc_va_middle pmc_hide_overflow last bk_equ_label "><div><span class="nowrap"></span></div></div></div>
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</p><p>Blood volume constitutes approximately 8% of the body weight. Therefore, an average human of 70 kg body weight has approximately 5.6 L of blood. Assuming all the nanoparticle injected goes into the systemic circulation, this provides a rough approximation of the potential maximum nanoparticle concentration in blood, which is used as the in vitro test concentration.
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<div class="pmc_disp_formula whole_rhythm clearfix" id="ncipr81.deq2"><div class="inline_block pmc_inline_block pmc_va_middle pmc_hide_overflow twelve_col"><math id="ncipr81.eq2" display="block"><mi>i</mi><mi>n</mi><mtext> </mtext><mi>v</mi><mi>i</mi><mi>t</mi><mi>r</mi><mi>o</mi><mtext> </mtext><mi>c</mi><mi>o</mi><mi>n</mi><mi>c</mi><mi>e</mi><mi>n</mi><mi>t</mi><mi>r</mi><mi>a</mi><mi>t</mi><mi>i</mi><mi>o</mi><msub><mi>n</mi><mrow><mi>h</mi><mi>u</mi><mi>m</mi><mi>a</mi><mi>n</mi><mtext> </mtext><mi>m</mi><mi>a</mi><mi>t</mi><mi>r</mi><mi>i</mi><mi>x</mi></mrow></msub><mo>=</mo><mfrac><mrow><mi>h</mi><mi>u</mi><mi>m</mi><mi>a</mi><mi>n</mi><mtext> </mtext><mi>d</mi><mi>o</mi><mi>s</mi><mi>e</mi></mrow><mrow><mi>h</mi><mi>u</mi><mi>m</mi><mi>a</mi><mi>n</mi><mtext> </mtext><mi>b</mi><mi>l</mi><mi>o</mi><mi>o</mi><mi>d</mi><mtext> </mtext><mi>v</mi><mi>o</mi><mi>l</mi><mi>u</mi><mi>m</mi><mi>e</mi></mrow></mfrac><mo>=</mo><mfrac><mrow><mn>70</mn><mo> </mo><mi>k</mi><mi>g</mi><mo>*</mo><mn>10</mn><mi>m</mi><mi>g</mi><mo>/</mo><mi>k</mi><mi>g</mi></mrow><mrow><mn>5.6</mn><mo> </mo><mi>L</mi></mrow></mfrac><mo>=</mo><mn>0.125</mn><mtext> </mtext><mi>m</mi><mi>g</mi><mo>/</mo><mi>m</mi><mi>L</mi></math></div><div class="inline_block pmc_inline_block pmc_va_middle pmc_hide_overflow last bk_equ_label "><div><span class="nowrap"></span></div></div></div>
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</p></div><p>The assay will evaluate four concentrations: 10 X (or when feasible 100 X, 30 X or 5 X) of the theoretical plasma concentration, the theoretical plasma concentration, and two 1: 5 serial dilutions of the theoretical plasma concentration. When the intended therapeutic concentration is unknown, the highest final concentration is 1 mg/mL or the highest reasonably achievable concentration.</p><p>For example, if the final theoretical plasma concentration to be tested is 0.2 mg/mL, then a stock of 4 mg/mL will be prepared and diluted 10-fold (0.4 mg/mL), followed by two 1: 5 serial dilutions (0.08 and 0.016 mg/mL). When 500 μL of each of these samples are combined in a culture plate well with 500 μL of cells, the final concentrations of nanoparticles are 0.008, 0.04, 0.2 and 2 mg/mL. Each nanoparticle concentration is plated 3 times.</p></div><div id="ncipr81.s6"><h2 id="_ncipr81_s6_">6. Isolation of Human PBMC from Leukopack or Whole Blood</h2><dl id="ncipr81.l6" class="temp-labeled-list"><dl class="bkr_refwrap"><dt>6.1.</dt><dd id="ncipr81.lt55"><p class="no_top_margin">Aliquot 15 mL of Ficoll-Paque into each 50 mL centrifuge tube.</p></dd></dl><dl class="bkr_refwrap"><dt>6.2.</dt><dd id="ncipr81.lt56"><p class="no_top_margin">Dilute the leukopack 1:2 with PBS; whole blood 1:3 with PBS.</p></dd></dl><dl class="bkr_refwrap"><dt>6.3.</dt><dd id="ncipr81.lt57"><p class="no_top_margin">Slowly layer 35 mL of diluted matrix from <a href="#ncipr81.lt56">step 6.2</a> over Ficoll-Paque.</p></dd></dl><dl class="bkr_refwrap"><dt>6.4.</dt><dd id="ncipr81.lt58"><p class="no_top_margin">Centrifuge 15 min, 900xg at room temperature, slow acceleration and without brakes.</p></dd></dl><dl class="bkr_refwrap"><dt>6.5.</dt><dd id="ncipr81.lt59"><p class="no_top_margin">Remove the mononuclear cell layer at the interface and add it to a sterile 50 mL tube containing 25 mL of PBS. Depending on the total cell number, this layer varies from thin and translucent to thick and milky in appearance.</p></dd></dl><dl class="bkr_refwrap"><dt>6.6.</dt><dd id="ncipr81.lt60"><p class="no_top_margin">Centrifuge 15 min, 400xg</p></dd></dl><dl class="bkr_refwrap"><dt>6.7.</dt><dd id="ncipr81.lt61"><p class="no_top_margin">Discard the supernatants and resuspend the pellets in 50 mL PBS. Repeat centrifugation step as described in 6.6.</p></dd></dl><dl class="bkr_refwrap"><dt>6.8.</dt><dd id="ncipr81.lt62"><p class="no_top_margin">Combine all washed cells into one tube and adjust the volume to 50 mL with PBS. Repeat centrifugation step as described in <a href="#ncipr81.lt60">step 6.6</a>. Discard PBS and resuspend cells in a small volume of DC culture medium (~3 mL).</p></dd></dl><dl class="bkr_refwrap"><dt>6.9.</dt><dd id="ncipr81.lt63"><p class="no_top_margin">Perform cell count and confirm cell viability, for example, by using Trypan Blue exclusion. Adjust cell concentration to 3 x 10<sup>6</sup> cells/mL in the DC culture medium.</p></dd></dl><dl class="bkr_refwrap"><dt>6.10.</dt><dd id="ncipr81.lt64"><p class="no_top_margin">Use cells from <a href="#ncipr81.lt62">step 6.8</a> for further DC generation or freeze them in freeze/thaw medium.</p></dd></dl></dl></div><div id="ncipr81.s7"><h2 id="_ncipr81_s7_">7. Rapid Thaw Method of Cryopreserved PBMC</h2><dl id="ncipr81.l7" class="temp-labeled-list"><dl class="bkr_refwrap"><dt>7.1.</dt><dd id="ncipr81.lt65"><p class="no_top_margin">Retrieve cryovial containing PBMC from storage area (−70°C or liquid nitrogen).</p></dd></dl><dl class="bkr_refwrap"><dt>7.2.</dt><dd id="ncipr81.lt66"><p class="no_top_margin">Rapidly thaw cells in 37°C water bath while gently shaking.</p></dd></dl><dl class="bkr_refwrap"><dt>7.3.</dt><dd id="ncipr81.lt67"><p class="no_top_margin">Wipe off cryovials with 70% ethanol and carefully open cap.</p></dd></dl><dl class="bkr_refwrap"><dt>7.4.</dt><dd id="ncipr81.lt68"><p class="no_top_margin">Transfer cells to a labeled 15 mL polypropylene round bottom tube.</p></dd></dl><dl class="bkr_refwrap"><dt>7.5.</dt><dd id="ncipr81.lt69"><p class="no_top_margin">Immediately add 10 mL of freeze/thaw medium in a drop-wise manner, continuously swirling the tube contents.</p></dd></dl><dl class="bkr_refwrap"><dt>7.6.</dt><dd id="ncipr81.lt70"><p class="no_top_margin">Centrifuge the cell suspension at 400xg for 5 min.</p></dd></dl><dl class="bkr_refwrap"><dt>7.7.</dt><dd id="ncipr81.lt71"><p class="no_top_margin">Discard the supernatant and re-suspend the cell pellet in warm DC culture medium.</p></dd></dl><dl class="bkr_refwrap"><dt>7.8.</dt><dd id="ncipr81.lt72"><p class="no_top_margin">Perform cell count and determine viability, for example, by Trypan Blue exclusion.</p></dd></dl><dl class="bkr_refwrap"><dt>7.9.</dt><dd id="ncipr81.lt73"><p class="no_top_margin">Adjust the volume of cell suspension to 3 x 10<sup>6</sup> cells/mL using DC culture medium.</p></dd></dl></dl></div><div id="ncipr81.s8"><h2 id="_ncipr81_s8_">8. Generation of Immature Dendritic Cells</h2><dl id="ncipr81.l8" class="temp-labeled-list"><dl class="bkr_refwrap"><dt>8.1.</dt><dd id="ncipr81.lt74"><p class="no_top_margin">Isolate PBMC or thaw frozen PBMC using the rapid thaw method according to procedures described in <a href="#ncipr81.s6">sections 6</a> or <a href="#ncipr81.s7">7</a>, respectively.</p></dd></dl><dl class="bkr_refwrap"><dt>8.2.</dt><dd id="ncipr81.lt75"><p class="no_top_margin">Use 5 mL of cell suspension from <a href="#ncipr81.lt63">step 6.9</a> or <a href="#ncipr81.lt73">7.9</a> (total number of cells is 15 x 10<sup>6</sup> cells).</p></dd></dl><dl class="bkr_refwrap"><dt>8.3.</dt><dd id="ncipr81.lt76"><p class="no_top_margin">Add 15 μL of DNase (150 units). Incubate the cell suspension in a polypropylene tube with loosened cap at 37°C for 1-2 hr.</p></dd></dl><dl class="bkr_refwrap"><dt>8.4.</dt><dd id="ncipr81.lt77"><p class="no_top_margin">After incubation, spin the cells 5 min at 400xg, and resuspend the pellet in 5-10 mL of DC culture medium.</p></dd></dl><dl class="bkr_refwrap"><dt>8.5.</dt><dd id="ncipr81.lt78"><p class="no_top_margin">Perform a cell count and viability, then adjust cell concentration to 3 x 10<sup>6</sup> cells/mL in DC culture medium.</p></dd></dl><dl class="bkr_refwrap"><dt>8.6.</dt><dd id="ncipr81.lt79"><p class="no_top_margin">Add 3 mL of cell suspension to wells in 6-well TC plate. (T75 or T100 TC flask can be used. In this case, do not add more than 20 mL of cell suspension per flask.)</p></dd></dl><dl class="bkr_refwrap"><dt>8.7.</dt><dd id="ncipr81.lt80"><p class="no_top_margin">Incubate plate/flask for 1-2 hr at 37°C to allow the monocytes to adhere.</p></dd></dl><dl class="bkr_refwrap"><dt>8.8.</dt><dd id="ncipr81.lt81"><p class="no_top_margin">For each well of the 6-well plate utilized, prepare 5 mL of <b>DC medium containing IL-4 (50 ng/mL) and GM-CSF (100 IU/mL)</b>. (Prepare 25 mL of complete DC medium for each T75 or 50mL for each T100 flask.) Do not use previously thawed IL-4 aliquots for initial set up.</p></dd></dl><dl class="bkr_refwrap"><dt>8.9.</dt><dd id="ncipr81.lt82"><p class="no_top_margin">After incubation, <u>gently</u> pipette up and down, aspirate and collect the media containing non-adherent cells. Wash each well (flask) three times with sterile PBS; combine all washes with the initial supernatant.</p></dd></dl><dl class="bkr_refwrap"><dt>8.10.</dt><dd id="ncipr81.lt83"><p class="no_top_margin">Add 4 mL of complete DC medium (prepared in <a href="#ncipr81.lt81">step 8.8</a>) to each well with adhered cells (20 mL for flask).</p></dd></dl><dl class="bkr_refwrap"><dt>8.11.</dt><dd id="ncipr81.lt84"><p class="no_top_margin">Perform cell count on total non-adherent cells collected. Approximate the number of adherent monocytes by subtracting the number of non-adherent cells from the total number of plated PBMC.</p></dd></dl><dl class="bkr_refwrap"><dt>8.12.</dt><dd id="ncipr81.lt85"><p class="no_top_margin">Incubate plate (flask) for 5- 7 days at 37°C.</p></dd></dl><dl class="bkr_refwrap"><dt>8.13.</dt><dd id="ncipr81.lt86"><p class="no_top_margin">Feed DC culture on day 3-4 (can be late day 2). Mix cells gently and aspirate half of the volume of each well/flask. Centrifuge at 400xg for 5 min. Resuspend the cell pellet in the same volume of fresh DC media with 2X amount of IL-4 and GM-CSF. Add this cell suspension to initial wells or flasks.</p></dd></dl><dl class="bkr_refwrap"><dt>8.14.</dt><dd id="ncipr81.lt87"><p class="no_top_margin">At the end of day 5-7, monocytes (large, round CD14+ cells) will be used to differentiate to immature dendritic cells (large, irregular shaped, CD14-).</p><p><b><i>Note</i></b><i>:</i> Cells should detach from the plate as they keep differentiating toward immature DC phenotype.</p></dd></dl></dl></div><div id="ncipr81.s9"><h2 id="_ncipr81_s9_">9. Maturation of Dendritic Cells with or without Nanomaterial</h2><dl id="ncipr81.l9" class="temp-labeled-list"><dl class="bkr_refwrap"><dt>9.1.</dt><dd id="ncipr81.lt88"><p class="no_top_margin">On day 5-7, harvest immature DC into a 50 mL polypropylene tube. Wash each well or flask with PBS two times and collect all washes in one tube. Some DC may be attached to the plate; in this case add 2 mL of 5 mM sterile EDTA to each well and incubate the plate for 10-15 min at room temperature. Collect the floating cells and add them to the previous washes.</p></dd></dl><dl class="bkr_refwrap"><dt>9.2.</dt><dd id="ncipr81.lt89"><p class="no_top_margin">Centrifuge the tube at 400xg for 5 min. Discard the supernatant and resuspend the cell pellet in 1 mL of fresh DC culture media <b><u>without IL-4 and GM-CSF.</u></b></p></dd></dl><dl class="bkr_refwrap"><dt>9.3.</dt><dd id="ncipr81.lt90"><p class="no_top_margin">Perform cell count and viability.</p></dd></dl><dl class="bkr_refwrap"><dt>9.4.</dt><dd id="ncipr81.lt91"><p class="no_top_margin">Adjust the cell concentration to 0.4 x 10<sup>6</sup> cells/mL.</p></dd></dl><dl class="bkr_refwrap"><dt>9.5.</dt><dd id="ncipr81.lt92"><p class="no_top_margin">Add 0.5 mL of cell suspension to each well of a 24-well TC plate (see <a class="figpopup" href="/books/NBK604908/figure/ncipr81.app1.fig1/?report=objectonly" target="object" rid-figpopup="figncipr81app1fig1" rid-ob="figobncipr81app1fig1">example plate map 1</a> in <a href="#ncipr81.app1">section 13</a>).</p></dd></dl><dl class="bkr_refwrap"><dt>9.6.</dt><dd id="ncipr81.lt93"><p class="no_top_margin">Prepare nanomaterial in DC culture medium at 2X of desired final concentration (see <a href="#ncipr81.s5">step 5</a> for details).</p></dd></dl><dl class="bkr_refwrap"><dt>9.7.</dt><dd id="ncipr81.lt94"><p class="no_top_margin">Add 0.5 mL of nanomaterial to appropriate wells. Add 0.5 mL of DC media to baseline control wells.</p></dd></dl><dl class="bkr_refwrap"><dt>9.8.</dt><dd id="ncipr81.lt95"><p class="no_top_margin">Add LPS at a final concentration of 20 ng/mL as positive control.
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<blockquote><p><b><i>Notes</i></b><i>:</i>
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<ul><li class="half_rhythm"><div>Generally, you will have wells with immature DC (in DC medium only) as baseline, wells with LPS only, as a standard for maturation, and wells with nanoparticle samples.</div></li><li class="half_rhythm"><div>When applicable, nanoparticle vehicle control can be included (e.g. when nanoparticle storage solution is not saline or PBS).</div></li><li class="half_rhythm"><div>When analysis of nanoparticle effect on LPS-induced DC maturation is needed prepare experimental wells with nanomaterial and LPS. Alternatively, cells can be treated with nanoparticles for 24 hours, washed and then treated with LPS for additional 24 hours. Use scientific judgement to adjust experimental design so to address the project need. See <a class="figpopup" href="/books/NBK604908/figure/ncipr81.app1.fig1/?report=objectonly" target="object" rid-figpopup="figncipr81app1fig1" rid-ob="figobncipr81app1fig1">example plate map 1</a> in <a href="#ncipr81.app1">section 13</a>.</div></li></ul></p></blockquote></p></dd></dl><dl class="bkr_refwrap"><dt>9.9.</dt><dd id="ncipr81.lt96"><p class="no_top_margin">Incubate DC for 24-48 hr at 37°C.</p></dd></dl><dl class="bkr_refwrap"><dt>9.10.</dt><dd id="ncipr81.lt97"><p class="no_top_margin">Harvest DC and perform flow analysis of DC phenotype, staining for HLA-ABC HLA-DR, CD86, CD80, CD83, and CD14.</p></dd></dl></dl></div><div id="ncipr81.s10"><h2 id="_ncipr81_s10_">10. Analysis of DC Maturation by Flow Cytometry</h2><dl id="ncipr81.l10" class="temp-labeled-list"><dl class="bkr_refwrap"><dt>10.1.</dt><dd id="ncipr81.lt98"><p class="no_top_margin">Centrifuge harvested DC at 400xg for 5 min. and resuspend the cell pellet in FACS Blocking buffer.</p></dd></dl><dl class="bkr_refwrap"><dt>10.2.</dt><dd id="ncipr81.lt99"><p class="no_top_margin">Transfer an equal amount of cell suspension (not more than 200 μL) into each well of a 96-well polypropylene plate (see example of <a class="figpopup" href="/books/NBK604908/figure/ncipr81.app1.fig2/?report=objectonly" target="object" rid-figpopup="figncipr81app1fig2" rid-ob="figobncipr81app1fig2">plate map 2</a> in <a href="#ncipr81.app1">section 13</a>). Ideally, you will have 100,000 – 200,000 cells /well. However, you can use as few as 10,000 cells/well.</p></dd></dl><dl class="bkr_refwrap"><dt>10.3.</dt><dd id="ncipr81.lt100"><p class="no_top_margin">Keep the plate at 4°C for 15-30 min.</p></dd></dl><dl class="bkr_refwrap"><dt>10.4.</dt><dd id="ncipr81.lt101"><p class="no_top_margin">Centrifuge the plate at 400xg for 5 min. Decant the supernatant from each well by flicking the plate. Wash the cells once with FACS staining buffer. Decant the supernatant again.</p></dd></dl><dl class="bkr_refwrap"><dt>10.5.</dt><dd id="ncipr81.lt102"><p class="no_top_margin">Add 20 μL of appropriate antibody to each well. Add 150 μL of FACS staining buffer to each well.</p></dd></dl><dl class="bkr_refwrap"><dt>10.6.</dt><dd id="ncipr81.lt103"><p class="no_top_margin">You will have four wells total for each DC sample: Isotype control; HLA-ABC/HLA-DR; CD86/CD80; CD14/CD83. See <a class="figpopup" href="/books/NBK604908/figure/ncipr81.app1.fig2/?report=objectonly" target="object" rid-figpopup="figncipr81app1fig2" rid-ob="figobncipr81app1fig2">example plate map 2</a> in <a href="#ncipr81.app1">section 13</a>.</p></dd></dl><dl class="bkr_refwrap"><dt>10.7.</dt><dd id="ncipr81.lt104"><p class="no_top_margin">Keep the plate at 4°C for 15-30 min.</p></dd></dl><dl class="bkr_refwrap"><dt>10.8.</dt><dd id="ncipr81.lt105"><p class="no_top_margin">Wash the plate with FACS buffer 3 times, flicking the supernatant every time.</p></dd></dl><dl class="bkr_refwrap"><dt>10.9.</dt><dd id="ncipr81.lt106"><p class="no_top_margin">After the last wash, add 100 μL of 1% paraformaldehyde in PBS to each well. Wrap the plate in foil and store at 4°C. Analyze the samples within one week. Before flow cytometry, transfer cell suspension from each well to a FACS tube and add 200 μL of PBS.</p></dd></dl><dl class="bkr_refwrap"><dt>10.10.</dt><dd id="ncipr81.lt107"><p class="no_top_margin">For analysis: create FSC/SSC dot plot for each sample and make R1 gate (live cells) to exclude cell debris. Create histograms for each staining in R1 gate. Set up M1 marker on Isotype control histograms and transfer this marker to all other histograms. Perform histogram statistics, looking for % of positive cells in M1, as well as Mean Channel Fluorescence (MCF) in M1.</p></dd></dl><dl class="bkr_refwrap"><dt>10.11.</dt><dd id="ncipr81.lt108"><p class="no_top_margin">Matured DC should have HLA-DR MCF increased; % of positive for CD86 and CD80 cells increased (although MCF may stay the same); % of CD83 positive cells should increase. Some immature DC may still be CD14+, but this percentage should decrease after maturation with LPS. Use scientific judgement for interpretation of the data generated using nanoparticles or, when needed, nanoparticle combination with LPS.</p></dd></dl></dl></div><div id="ncipr81.s11"><h2 id="_ncipr81_s11_">11. Abbreviations</h2><dl><dt id="ncipr81.abb_DL1_DI1">BSA</dt><dd><p>bovine serum albumin</p></dd><dt id="ncipr81.abb_DL1_DI2">DC</dt><dd><p>dendritic cells</p></dd><dt id="ncipr81.abb_DL1_DI3">DMSO</dt><dd><p>dimethyl sulfoxide</p></dd><dt id="ncipr81.abb_DL1_DI4">EDTA</dt><dd><p>ethylenediaminetetraacetic acid</p></dd><dt id="ncipr81.abb_DL1_DI5">FACS</dt><dd><p>fluorescence activated cell sorting</p></dd><dt id="ncipr81.abb_DL1_DI6">FBS</dt><dd><p>fetal bovine serum</p></dd><dt id="ncipr81.abb_DL1_DI7">FITC</dt><dd><p>Fluorescein isothiocyanate</p></dd><dt id="ncipr81.abb_DL1_DI8">FSC</dt><dd><p>forward scatter</p></dd><dt id="ncipr81.abb_DL1_DI9">GM-CSF</dt><dd><p>granulocyte macrophage colony stimulating factor</p></dd><dt id="ncipr81.abb_DL1_DI10">HEPES</dt><dd><p>2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid</p></dd><dt id="ncipr81.abb_DL1_DI11">HLA ABC</dt><dd><p>human leukocyte antigen, class I (A, B, and C)</p></dd><dt id="ncipr81.abb_DL1_DI12">HLA-DR</dt><dd><p>human leukocyte antigen, class II (DR)</p></dd><dt id="ncipr81.abb_DL1_DI13">IL</dt><dd><p>interleukin</p></dd><dt id="ncipr81.abb_DL1_DI14">IU</dt><dd><p>international units</p></dd><dt id="ncipr81.abb_DL1_DI15">LPS</dt><dd><p>lipopolysaccharide</p></dd><dt id="ncipr81.abb_DL1_DI16">MCF</dt><dd><p>mean channel fluorescence</p></dd><dt id="ncipr81.abb_DL1_DI17">MEM NEAA</dt><dd><p>minimal essential medium - non-essential amino acids</p></dd><dt id="ncipr81.abb_DL1_DI18">PBMC</dt><dd><p>peripheral blood mononuclear cells</p></dd><dt id="ncipr81.abb_DL1_DI19">PE</dt><dd><p>phycoerythrin</p></dd><dt id="ncipr81.abb_DL1_DI20">SSC</dt><dd><p>side scatter</p></dd><dt id="ncipr81.abb_DL1_DI21">TC</dt><dd><p>tissue culture</p></dd></dl></div><div id="ncipr81.rl.r1"><h2 id="_ncipr81_rl_r1_">12. References</h2><dl class="temp-labeled-list"><dl class="bkr_refwrap"><dt>1.</dt><dd><div class="bk_ref" id="ncipr81.ref1">Shinde
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P, Khan
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N, Melinkeri
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S, Kale
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V, Limaye
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L. Freezing of dendritic cells with trehalose as an additive in the conventional freezing medium results in improved recovery after cryopreservation. Transfusion. 2019;59(2):686–696. doi: 10.1111/trf.15028. PMID: 30456902.
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[<a href="https://pubmed.ncbi.nlm.nih.gov/30456902" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 30456902</span></a>] [<a href="http://dx.crossref.org/10.1111/trf.15028" ref="pagearea=cite-ref&targetsite=external&targetcat=link&targettype=uri">CrossRef</a>]</div></dd></dl><dl class="bkr_refwrap"><dt>2.</dt><dd><div class="bk_ref" id="ncipr81.ref2">Dobrovolskaia
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MA, McNeil
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SE. Understanding the correlation between in vitro and in vivo immunotoxicity tests for nanomedicines. J Control Release. 2013;172(2):456–66.
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[<a href="/pmc/articles/PMC5831149/" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pmc">PMC free article<span class="bk_prnt">: PMC5831149</span></a>] [<a href="https://pubmed.ncbi.nlm.nih.gov/23742883" ref="pagearea=cite-ref&targetsite=entrez&targetcat=link&targettype=pubmed">PubMed<span class="bk_prnt">: 23742883</span></a>]</div></dd></dl></dl></div><div id="ncipr81.app1"><h2 id="_ncipr81_app1_">13. Appendix</h2><div id="ncipr81.app1.fig1" class="figure bk_fig"><div class="graphic"><a href="/core/lw/2.0/html/tileshop_pmc/tileshop_pmc_inline.html?title=Example%20Plate%20Map%201.&p=BOOKS&id=604908_ncipr81app1f1.jpg" target="tileshopwindow" class="inline_block pmc_inline_block ts_canvas img_link" title="Click on image to zoom"><div class="ts_bar small" title="Click on image to zoom"></div><img src="/books/NBK604908/bin/ncipr81app1f1.jpg" alt="Example Plate Map 1." class="tileshop" title="Click on image to zoom" /></a></div><h3><span class="title">Example Plate Map 1</span></h3><div class="caption"><p>PC: positive control, LPS; TS: test sample.</p><p>Also add a vehicle control if nanoparticles are formulated in buffers other than PBS or saline. Prepare second plate in which nanoparticles are combined with LPS if analysis of nanoparticle effects on LPS-induced maturation is needed. Certain experiments treat cells with nanoparticles for 24 hours prior to exposure to LPS; in this case all wells receive LPS except for the baseline.</p></div></div><div id="ncipr81.app1.fig2" class="figure bk_fig"><div class="graphic"><a href="/core/lw/2.0/html/tileshop_pmc/tileshop_pmc_inline.html?title=Example%20Plate%20Map%202.&p=BOOKS&id=604908_ncipr81app1f2.jpg" target="tileshopwindow" class="inline_block pmc_inline_block ts_canvas img_link" title="Click on image to zoom"><div class="ts_bar small" title="Click on image to zoom"></div><img src="/books/NBK604908/bin/ncipr81app1f2.jpg" alt="Example Plate Map 2." class="tileshop" title="Click on image to zoom" /></a></div><h3><span class="title">Example Plate Map 2</span></h3><p>PC: Positive Control; NC: Negative Control; TS: Test Sample</p><p>Prepare second plate in which nanoparticles are combined with LPS if analysis of nanoparticles effects on LPS-induced maturation is needed.</p><p>Each set of samples, shaded red, blue, green and yellow, will be used to test one of the following groups: Isotype control; HLAABC/HLA-DR; CD86/CD80; and CD14/CD83.</p></div></div><div><dl class="temp-labeled-list small"><dl class="bkr_refwrap"><dt></dt><dd><div><p class="no_top_margin"><p>This protocol assumes an intermediate level of scientific competency with regard to techniques, instrumentation, and safety procedures. Rudimentary assay details have been omitted for the sake of brevity.</p></p></div></dd></dl><dl class="bkr_refwrap"><dt>*</dt><dd><div id="ncipr81.fn1"><p class="no_top_margin">address correspondence to: <a href="mailto:dev@null" data-email="vog.hin.liam@aniram" class="oemail">vog.hin.liam@aniram</a></p></div></dd></dl><dl class="bkr_refwrap"><dt></dt><dd><div><p class="no_top_margin"><div>
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<span class="mixed-citation" id="ncipr81.suggestedcitation">Potter TM, Cedrone E, Neun BW, Strobl SL, Zaritskaya L, Dobrovolskaia MA. NCL Method ITA-14: Analysis of Nanoparticle Effects on Maturation of Monocyte Derived Dendritic Cells In Vitro. <a href="https://ncl.cancer.gov/resources/assay-cascade-protocols" ref="pagearea=body&targetsite=external&targetcat=link&targettype=uri">https://ncl.cancer.gov/resources/assay-cascade-protocols</a> DOI: <a href="http://dx.crossref.org/10.17917/0YC3-6793" ref="pagearea=body&targetsite=external&targetcat=link&targettype=uri">10.17917/0YC3-6793</a></span>
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</div></p></div></dd></dl></dl></div><div style="display:none"><div style="display:none" id="figncipr81app1fig1"><img alt="Image ncipr81app1f1" src-large="/books/NBK604908/bin/ncipr81app1f1.jpg" /></div><div style="display:none" id="figncipr81app1fig2"><img alt="Image ncipr81app1f2" src-large="/books/NBK604908/bin/ncipr81app1f2.jpg" /></div></div><div id="bk_toc_contnr"></div></div></div><div class="fm-sec"><h2 id="_NBK604908_pubdet_">Publication Details</h2><h3>Author Information and Affiliations</h3><p class="contrib-group"><h4>Authors</h4><span itemprop="author">Timothy M. Potter</span>,<sup>1</sup> <span itemprop="author">Edward Cedrone</span>,<sup>1</sup> <span itemprop="author">Barry W. Neun</span>,<sup>1</sup> <span itemprop="author">Susan L. Strobl</span>,<sup>2</sup> <span itemprop="author">Liubov Zaritskaya</span>,<sup>2</sup> and <span itemprop="author">Marina A. Dobrovolskaia</span><sup><img src="/corehtml/pmc/pmcgifs/corrauth.gif" alt="corresponding author" /></sup><sup>1</sup>.</p><h4>Affiliations</h4><div class="affiliation"><sup>1</sup> Nanotechnology Characterization Lab, Cancer Research Technology Program<div><span class="email-label">Email: </span><a href="mailto:dev@null" data-email="vog.hin.liam@aniram" class="oemail">vog.hin.liam@aniram</a></div></div><div class="affiliation"><sup>2</sup> Laboratory of Cell Mediated Immunity, Clinical Service Program, Frederick National Laboratory for Cancer Research sponsored by the National Cancer Institute, Frederick, MD 21702</div><div><sup><img src="/corehtml/pmc/pmcgifs/corrauth.gif" alt="corresponding author" /></sup>Corresponding author.</div><h3>Publication History</h3><p class="small">Published: <span itemprop="datePublished">November 2022</span>.</p><h3>Copyright</h3><div><div class="half_rhythm"><a href="/books/about/copyright/">Copyright Notice</a></div></div><h3>Publisher</h3><p><a href="https://www.cancer.gov/nano/research/ncl" ref="pagearea=page-banner&targetsite=external&targetcat=link&targettype=publisher">National Cancer Institute (US)</a>, Bethesda (MD)</p><h3>NLM Citation</h3><p>Potter TM, Cedrone E, Neun BW, et al. Analysis of Nanoparticle Effects on Maturation of Monocyte Derived Dendritic Cells In Vitro: Version 5. 2022 Nov. In: National Cancer Institute’s Nanotechnology Characterization Laboratory Assay Cascade Protocols [Internet]. Bethesda (MD): National Cancer Institute (US); 2005 May 1-. NCL Method ITA-14.<span class="bk_cite_avail"></span> doi: 10.17917/0YC3-6793</p></div><div class="small-screen-prev"><a href="/books/n/nciprotocols/ncipr82/?report=reader"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M75,30 c-80,60 -80,0 0,60 c-30,-60 -30,0 0,-60"></path><text x="20" y="28" textLength="60" style="font-size:25px">Prev</text></svg></a></div><div class="small-screen-next"><a href="/books/n/nciprotocols/ncipr80/?report=reader"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M25,30c80,60 80,0 0,60 c30,-60 30,0 0,-60"></path><text x="20" y="28" textLength="60" style="font-size:25px">Next</text></svg></a></div></article><article data-type="boxed-text" id="figobncipr81box1"><div id="ncipr81.box1" class="box boxed-text-box whole_rhythm hide-overflow"><h3><span class="label">Box 1</span><span class="title">Example Calculation to Determine Nanoparticle Concentration for In Vitro Tests</span></h3><p>In this example, we assume a mouse dose of 123 mg/kg. Therefore, the scaled equivalent human dose would be:
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<div class="pmc_disp_formula whole_rhythm clearfix" id="ncipr81.deq1"><div class="inline_block pmc_inline_block pmc_va_middle pmc_hide_overflow twelve_col"><math id="ncipr81.eq1" display="block"><mrow><mi>H</mi><mi>u</mi><mi>m</mi><mi>a</mi><mi>n</mi><mtext> </mtext><mi>d</mi><mi>o</mi><mi>s</mi><mi>e</mi><mo>=</mo><mfrac><mrow><mi>m</mi><mi>o</mi><mi>u</mi><mi>s</mi><mi>e</mi><mtext> </mtext><mi>d</mi><mi>o</mi><mi>s</mi><mi>e</mi></mrow><mrow><mn>12.3</mn></mrow></mfrac><mo>=</mo><mfrac><mrow><mn>123</mn><mtext> </mtext><mi>m</mi><mi>g</mi><mo>/</mo><mi>k</mi><mi>g</mi></mrow><mrow><mn>12.3</mn></mrow></mfrac><mo>=</mo><mn>10</mn><mtext> </mtext><mi>m</mi><mi>g</mi><mo>/</mo><mi>k</mi><mi>g</mi></mrow></math></div><div class="inline_block pmc_inline_block pmc_va_middle pmc_hide_overflow last bk_equ_label "><div><span class="nowrap"></span></div></div></div>
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</p><p>Blood volume constitutes approximately 8% of the body weight. Therefore, an average human of 70 kg body weight has approximately 5.6 L of blood. Assuming all the nanoparticle injected goes into the systemic circulation, this provides a rough approximation of the potential maximum nanoparticle concentration in blood, which is used as the in vitro test concentration.
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<div class="pmc_disp_formula whole_rhythm clearfix" id="ncipr81.deq2"><div class="inline_block pmc_inline_block pmc_va_middle pmc_hide_overflow twelve_col"><math id="ncipr81.eq2" display="block"><mi>i</mi><mi>n</mi><mtext> </mtext><mi>v</mi><mi>i</mi><mi>t</mi><mi>r</mi><mi>o</mi><mtext> </mtext><mi>c</mi><mi>o</mi><mi>n</mi><mi>c</mi><mi>e</mi><mi>n</mi><mi>t</mi><mi>r</mi><mi>a</mi><mi>t</mi><mi>i</mi><mi>o</mi><msub><mi>n</mi><mrow><mi>h</mi><mi>u</mi><mi>m</mi><mi>a</mi><mi>n</mi><mtext> </mtext><mi>m</mi><mi>a</mi><mi>t</mi><mi>r</mi><mi>i</mi><mi>x</mi></mrow></msub><mo>=</mo><mfrac><mrow><mi>h</mi><mi>u</mi><mi>m</mi><mi>a</mi><mi>n</mi><mtext> </mtext><mi>d</mi><mi>o</mi><mi>s</mi><mi>e</mi></mrow><mrow><mi>h</mi><mi>u</mi><mi>m</mi><mi>a</mi><mi>n</mi><mtext> </mtext><mi>b</mi><mi>l</mi><mi>o</mi><mi>o</mi><mi>d</mi><mtext> </mtext><mi>v</mi><mi>o</mi><mi>l</mi><mi>u</mi><mi>m</mi><mi>e</mi></mrow></mfrac><mo>=</mo><mfrac><mrow><mn>70</mn><mo> </mo><mi>k</mi><mi>g</mi><mo>*</mo><mn>10</mn><mi>m</mi><mi>g</mi><mo>/</mo><mi>k</mi><mi>g</mi></mrow><mrow><mn>5.6</mn><mo> </mo><mi>L</mi></mrow></mfrac><mo>=</mo><mn>0.125</mn><mtext> </mtext><mi>m</mi><mi>g</mi><mo>/</mo><mi>m</mi><mi>L</mi></math></div><div class="inline_block pmc_inline_block pmc_va_middle pmc_hide_overflow last bk_equ_label "><div><span class="nowrap"></span></div></div></div>
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</p></div></article><article data-type="fig" id="figobncipr81app1fig1"><div id="ncipr81.app1.fig1" class="figure bk_fig"><div class="graphic"><a href="/core/lw/2.0/html/tileshop_pmc/tileshop_pmc_inline.html?title=Example%20Plate%20Map%201.&p=BOOKS&id=604908_ncipr81app1f1.jpg" target="tileshopwindow" class="inline_block pmc_inline_block ts_canvas img_link" title="Click on image to zoom"><div class="ts_bar small" title="Click on image to zoom"></div><img data-src="/books/NBK604908/bin/ncipr81app1f1.jpg" alt="Example Plate Map 1." class="tileshop" title="Click on image to zoom" /></a></div><h3><span class="title">Example Plate Map 1</span></h3><div class="caption"><p>PC: positive control, LPS; TS: test sample.</p><p>Also add a vehicle control if nanoparticles are formulated in buffers other than PBS or saline. Prepare second plate in which nanoparticles are combined with LPS if analysis of nanoparticle effects on LPS-induced maturation is needed. Certain experiments treat cells with nanoparticles for 24 hours prior to exposure to LPS; in this case all wells receive LPS except for the baseline.</p></div></div></article><article data-type="fig" id="figobncipr81app1fig2"><div id="ncipr81.app1.fig2" class="figure bk_fig"><div class="graphic"><a href="/core/lw/2.0/html/tileshop_pmc/tileshop_pmc_inline.html?title=Example%20Plate%20Map%202.&p=BOOKS&id=604908_ncipr81app1f2.jpg" target="tileshopwindow" class="inline_block pmc_inline_block ts_canvas img_link" title="Click on image to zoom"><div class="ts_bar small" title="Click on image to zoom"></div><img data-src="/books/NBK604908/bin/ncipr81app1f2.jpg" alt="Example Plate Map 2." class="tileshop" title="Click on image to zoom" /></a></div><h3><span class="title">Example Plate Map 2</span></h3><p>PC: Positive Control; NC: Negative Control; TS: Test Sample</p><p>Prepare second plate in which nanoparticles are combined with LPS if analysis of nanoparticles effects on LPS-induced maturation is needed.</p><p>Each set of samples, shaded red, blue, green and yellow, will be used to test one of the following groups: Isotype control; HLAABC/HLA-DR; CD86/CD80; and CD14/CD83.</p></div></article></div><div id="jr-scripts"><script src="/corehtml/pmc/jatsreader/ptpmc_3.22/js/libs.min.js"> </script><script src="/corehtml/pmc/jatsreader/ptpmc_3.22/js/jr.min.js"> </script><script type="text/javascript" src="/core/mathjax/2.7.9/MathJax.js?config=TeX-AMS-MML_SVG"> </script></div></div>
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