Name: preparation of adipose progenitor cells from mouse epididymal adipose tissues
Uploaded: 2020-08-25T14:45:00
Description: Watch this Scientific Journal Video about Preparation of Adipose Progenitor Cells from Mouse Epididymal Adipose Tissues at JoVE.com

Vi anerkender Mayo Clinic Microscopy Cell Analysis Core Flow Cytometry Facility for at få hjælp til FACS-sortering.

Alle dyreforsøg blev udført under godkendelse af Mayo Clinic Institutional Animal Care and Use Committee.
1. Forberedelse af opløsning 
<ol><li>Forbered kollagen 2% (w/ v) opløsning ved at opløse kollagen II 2 g i 100 mL Hanks 'afbalanceret saltopløsning (HBSS). Aliquot 200 μL hver for hver anvendelse.</li>
	<li>Forbered neutraliseringsmedium ved at blande 84 mL F-12 medium, 15 ml hesteserum og 1 mL penicillin/streptomycin.</li>
	<li>Forbered flowcytometribuffer ved a...

<ol>
	<li>Krotkiewski, M., Bjorntorp, P., Sjostrom, L., Smith, U. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Impact+of+obesity+on+metabolism+in+men+and+women.+Importance+of+regional+adipose+tissue+distribution.">Impact of obesity on metabolism in men and women. Importance of regional adipose tissue distribution.</a> The Journal of Clinical Investigation. 72, 1150-1162 (1983).</li><li>Salans, L. B., Horton, E. S., Sims, E. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Experimental+obesity+in+man:+cellular+character+of+the+adipose+tissue.">Experimental obesity in man: cellular character of the adipose tissue.</a> The Journal of Clinical Investigation. 50, 1005-1011 (1971).</li><li>Trayhurn, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Hypoxia+and+adipose+tissue+function+and+dysfunction+in+obesity.">Hypoxia and adipose tissue function and dysfunction in obesity.</a> Physiological Reviews. 93, 1-21 (2013).</li><li>Halberg, N., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Hypoxia-inducible+factor+1alpha+induces+fibrosis+and+insulin+resistance+in+white+adipose+tissue.">Hypoxia-inducible factor 1alpha induces fibrosis and insulin resistance in white adipose tissue.</a> Molecular and Cellular Biology. 29, 4467-4483 (2009).</li><li>Upadhyay, J., Farr, O., Perakakis, N., Ghaly, W., Mantzoros, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Obesity+as+a+Disease.">Obesity as a Disease.</a> Medical Clinics of North America. 102, 13-33 (2018).</li><li>Cawthorn, W. P., Scheller, E. L., MacDougald, O. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Adipose+tissue+stem+cells+meet+preadipocyte+commitment:+going+back+to+the+future.">Adipose tissue stem cells meet preadipocyte commitment: going back to the future.</a> Journal of Lipid Research. 53, 227-246 (2012).</li><li>Cho, D. S., Lee, B., Doles, J. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Refining+the+adipose+progenitor+cell+landscape+in+healthy+and+obese+visceral+adipose+tissue+using+single-cell+gene+expression+profiling.">Refining the adipose progenitor cell landscape in healthy and obese visceral adipose tissue using single-cell gene expression profiling.</a> Life Science Alliance. 2, 201900561 (2019).</li><li>Burl, R. B., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Deconstructing+Adipogenesis+Induced+by+beta3-Adrenergic+Receptor+Activation+with+Single-Cell+Expression+Profiling.">Deconstructing Adipogenesis Induced by beta3-Adrenergic Receptor Activation with Single-Cell Expression Profiling.</a> Cell Metabolism. 28, 300-309 (2018).</li><li>Hepler, C., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Identification+of+functionally+distinct+fibro-inflammatory+and+adipogenic+stromal+subpopulations+in+visceral+adipose+tissue+of+adult+mice.">Identification of functionally distinct fibro-inflammatory and adipogenic stromal subpopulations in visceral adipose tissue of adult mice.</a> eLife. 7, 39636 (2018).</li><li>Merrick, D., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Identification+of+a+mesenchymal+progenitor+cell+hierarchy+in+adipose+tissue.">Identification of a mesenchymal progenitor cell hierarchy in adipose tissue.</a> Science. 364, 2501 (2019).</li><li>Schwalie, P. C., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+stromal+cell+population+that+inhibits+adipogenesis+in+mammalian+fat+depots.">A stromal cell population that inhibits adipogenesis in mammalian fat depots.</a> Nature. 559, 103-108 (2018).</li><li>Raajendiran, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Identification+of+Metabolically+Distinct+Adipocyte+Progenitor+Cells+in+Human+Adipose+Tissues.">Identification of Metabolically Distinct Adipocyte Progenitor Cells in Human Adipose Tissues.</a> Cell Reports. 27, 1528-1540 (2019).</li><li>De Matteis, R., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=In+vivo+physiological+transdifferentiation+of+adult+adipose+cells.">In vivo physiological transdifferentiation of adult adipose cells.</a> Stem Cells. 27, 2761-2768 (2009).</li><li>Hanamsagar, R., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=An+optimized+workflow+for+single-cell+transcriptomics+and+repertoire+profiling+of+purified+lymphocytes+from+clinical+samples.">An optimized workflow for single-cell transcriptomics and repertoire profiling of purified lymphocytes from clinical samples.</a> Scientific Reports. 10, 2219 (2020).</li><li>Marinovic, M. P., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Crotamine+induces+browning+of+adipose+tissue+and+increases+energy+expenditure+in+mice.">Crotamine induces browning of adipose tissue and increases energy expenditure in mice.</a> Scientific Reports. 8, 5057 (2018).</li><li>Takahashi, H., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Biological+and+clinical+availability+of+adipose-derived+stem+cells+for+pelvic+dead+space+repair.">Biological and clinical availability of adipose-derived stem cells for pelvic dead space repair.</a> Stem Cells Translational Medicine. 1, 803-810 (2012).</li><li>Cowan, C. M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Adipose-derived+adult+stromal+cells+heal+critical-size+mouse+calvarial+defects.">Adipose-derived adult stromal cells heal critical-size mouse calvarial defects.</a> Nature Biotechnology. 22 (5), 560-567 (2004).</li><li>Hagberg, C. E., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Flow+Cytometry+of+Mouse+and+Human+Adipocytes+for+the+Analysis+of+Browning+and+Cellular+Heterogeneity.">Flow Cytometry of Mouse and Human Adipocytes for the Analysis of Browning and Cellular Heterogeneity.</a> Cell Reports. 24, 2746-2756 (2018).</li></ol>

Enkeltcellet RNA-sekventering (scRNA-seq) får hurtigt trækkraft som et kraftfuldt værktøj til samtidig at studere forskellige cellepopulationer på enkeltcelleniveau. På grund af høje omkostninger forbundet med prøveforberedelse og høj gennemløbssekvensering er det vigtigt at optimere cellulære indgange (høj levedygtighed og renhed) for at øge sandsynligheden for eksperimentel succes. Nogle celleforberedelsesprotokoller er afhængige af fjernelse af døde celler og snavs ved hjælp af lavspinvask og kolonneba...

Fedtvæv spiller en central rolle i energimetabolismen. Overskydende energi opbevares i form af lipider, og fedtvæv er i stand til betydelig ekspansion eller tilbagetrækning afhængigt af ernæringsstatus og energisk efterspørgsel. Udvidelse af fedtvæv kan skyldes en stigning i adipocyt størrelse (hypertrofi) og / eller fra en stigning i adipocyt nummer (hyperplasi); sidstnævnte proces er stramt reguleret af spredning og differentiering af fedtprovenatorceller1,2. Under fedme, fedtvæv overdrevent udvider, og væv dysfunktion – herunder hypoxi, inflammation, og insulinresistens – ofte udvikler3,4. Disse komplikationer er risikofaktorer for mange kroniske sygdomme, herunder hypertension, diabetes, hjerte-kar-sygdomme, slagtilfælde og kræft5. Derfor er begrænsning af ukontrolleret fedtvævsudvidelse og afbødning af fedtvævspatologier de bedste biomedicinske forskningsprioriteter. Under adipose væv ekspansion, hjemmehørende fedtvæv-afledte stamceller (ASCs) formere sig og differentiere sekventielt i præadipocytter (begået stamceller) og derefter i modne adipocytter6. Nylige enkeltcellede RNA-sekventeringsundersøgelser (scRNA-seq) viser , at disse adipose progenitorcellepopulationer (ASC'er og præadipocytter) udviser betydelig molekylær og funktionel heterogenitet7,8,9,10,11,12. For eksempel viser ASC'er en reduceret adipogen differentieringskapacitet, samtidig med at de udviser højere sprednings- og ekspansionskapacitet sammenlignet med præadipocytter7. Yderligere molekylære forskelle rapporteres inden for ASC- og præadipocytpopulationer, selv om den funktionelle relevans af disse forskelle fortsat er uklar7. Tilsammen fremhæver disse data kompleksiteten af den fedtvenlige stamfadercellepulje og understreger behovet for at udvikle og standardisere værktøjer til bedre at forstå og manipulere disse kritiske cellepopulationer.
Denne protokol beskriver isoleringen af høj levedygtighed Sca1+ fedt progenitor cellepopulationer fra mus epididymal fedt puder, der er egnede til følsomme downstream analyser, herunder enkelt-celle undersøgelser (scRNA-sekventering) og cellekultur. Isolering og dissociation af epididymale fedtpuder blev udført som tidligere beskrevet7,13 med mindre ændringer, der forbedrer levedygtigheden af isolerede APC'er. Kort sagt, dissociated celler fra epididymal fedt puder er plettet med antistoffer mod Sca1, en markør for både ASCs og præadipocytter6,7, og andre afstamning (Lin) markører: Ter119 (erythroid celler), CD31 (endotelceller), og CD45 (leukocytter). Levedygtig Sca1+/Ter119-/CD31-/CD45-/DAPI- celler sorteres derefter efter fluorescensaktiveret cellesortering (FACS). Det er vigtigt, at denne protokol blev valideret ved vellykket isolering og analyse af levedygtige Sca1+/ Lin- fedt progenitor celler rapporteret i en nylig enkelt celle RNA sekventering undersøgelse, der identificerede funktionelt heterogene delpopulationer i ASC'er og præadipocytter7.

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			<td height="21" style="height:21px;width:332px;">1.7 mL microcentrifuge tube</td>
			<td style="width:181px;">VWR</td>
			<td style="width:119px;">87003-294</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:332px;">13 mL culture tube</td>
			<td style="width:181px;">Thermo Fisher Scientific</td>
			<td style="width:119px;">50-809-216</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:332px;">15 mL conical tube</td>
			<td style="width:181px;">Greiner Bio-one</td>
			<td style="width:119px;">188 271</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:332px;">5 mL test tube with cell strainer snap cap</td>
			<td style="width:181px;">Thermo Fisher Scientific</td>
			<td style="width:119px;">08-771-23</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:332px;">50 mL conical tube</td>
			<td style="width:181px;">Greiner Bio-one</td>
			<td style="width:119px;">227 261</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:332px;">70 &#181;m cell strainer</td>
			<td style="width:181px;">Thermo Fisher Scientific</td>
			<td style="width:119px;">22-363-548</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:332px;">Anti-CD31-FITC antibody</td>
			<td style="width:181px;">Miltenyi Biotec</td>
			<td style="width:119px;">130-102-519</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:332px;">Anti-CD45-FITC antibody</td>
			<td style="width:181px;">Miltenyi Biotec</td>
			<td style="width:119px;">130-102-491</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:332px;">Anti-Sca1-APC antibody</td>
			<td style="width:181px;">Miltenyi Biotec</td>
			<td style="width:119px;">130-102-833</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:332px;">Anti-Ter119-FITC antibody</td>
			<td style="width:181px;">Miltenyi Biotec</td>
			<td style="width:119px;">130-112-908</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:332px;">BSA</td>
			<td style="width:181px;">Gold Biotechnology</td>
			<td style="width:119px;">A-420-500</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:332px;">Collagenase type II</td>
			<td style="width:181px;">Thermo Fisher Scientific</td>
			<td style="width:119px;">17101-015</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:332px;">DAPI</td>
			<td style="width:181px;">Thermo Fisher</td>
			<td style="width:119px;">D1306</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:332px;">Dulbecco&#39;s phosphate-buffered saline (DPBS)</td>
			<td style="width:181px;">Thermo Fisher Scientific</td>
			<td style="width:119px;">14190-144</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:332px;">F-12 medium</td>
			<td style="width:181px;">Thermo Fisher Scientific</td>
			<td style="width:119px;">11765-054</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:332px;">FcR blocking reagent</td>
			<td style="width:181px;">Miltenyi Biotec</td>
			<td style="width:119px;">130-092-575</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:332px;">Hanks&#39; balanced salt solution (HBSS)</td>
			<td style="width:181px;">Thermo Fisher Scientific</td>
			<td style="width:119px;">14025-092</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:332px;">Horse serum</td>
			<td style="width:181px;">Thermo Fisher Scientific</td>
			<td style="width:119px;">16050-122</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:332px;">Penicillin-streptomycin</td>
			<td style="width:181px;">Thermo Fisher Scientific</td>
			<td style="width:119px;">15140-122</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:332px;">Propidium iodide solution</td>
			<td style="width:181px;">Miltenyi Biotec</td>
			<td style="width:119px;">130-093-233</td>
			<td></td>
		</tr>
	</tbody>
</table>

preparation of adipose progenitor cells from mouse epididymal adipose tissues

Fedme og metaboliske lidelser såsom diabetes, hjertesygdomme, og kræft, er alle forbundet med dramatiske fedtvæv remodeling. Vævsbeboende fedt progenitorceller (APC'er) spiller en central rolle i fedtvævshomøostase og kan bidrage til vævspatologien. Den stigende brug af enkeltcelleanalyseteknologier – herunder enkeltcellede RNA-sekventering og enkeltcelleproteomics – transformerer stamcellefeltet med en enkelt celle ved at tillade en hidtil uset opløsning af individuelle celleudtryksændringer i forbindelse med ændringer i hele befolkningen eller vævet. I denne artikel leverer vi detaljerede protokoller til dissekering af epididymalt fedtvæv til mus, isolerer enkelt fedtvævsafledte celler og udfører fluorescensaktiveret cellesortering (FACS) for at berige til levedygtig Sca1+/ CD31-/ CD45-/ Ter119- APC'er. Disse protokoller vil gøre det muligt for efterforskere at udarbejde apc'er af høj kvalitet, der er egnede til downstream-analyser såsom enkeltcellet RNA-sekventering.

Fire måneder gamle mandlige FVB mus blev brugt i dette eksperiment. Efter udelukkelse af vragrester og doubletter ved hjælp af FSC/SSC-observationsområder blev levedygtige celler (DAPI- population) lukket, efterfulgt af udvælgelsen af APC+/FITC- population (Figur 1). DAPI-, APC- og FITC-portene blev tegnet på basis af den ikke-indgroede kontrol. Gating-strategierne er vist i figur 1.
Efter 1 h sor...

Watch this Scientific Journal Video about Preparation of Adipose Progenitor Cells from Mouse Epididymal Adipose Tissues at JoVE.com

Preparation of Adipose Progenitor Cells from Mouse Epididymal Adipose Tissues

Vi præsenterer en enkel metode til at isolere meget levedygtige fedt stamceller fra mus epididymal fedt puder ved hjælp af fluorescens aktiveret celle sortering.

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