Name: primary culture of porcine retinal pigment epithelial cells
Uploaded: 2022-09-23T14:00:00
Description: Watch this Scientific Journal Video about Primary Culture of Porcine Retinal Pigment Epithelial Cells at JoVE.com

Forfatterne ønsker å vise sin takknemlighet og respekt for alle dyr som bidrar med sine celler i denne studien. Denne studien ble delvis støttet av tilskudd fra National Key R&D Program of China (2019YFA0111200, Yi Liao & Yuan Gao og Grant nr. 2018YFA0107301, Wei Li). Forfatterne takker Jingru Huang og Xiang You fra Central Lab, School of Medicine, Xiamen University for teknisk støtte i konfokal bildebehandling.

Bruken av eksperimentelle dyr overholdt forskriftene fra Association for Research in Vision and Ophthalmology (ARVO) og ble godkjent av Etisk komité for eksperimentell dyreforvaltning ved Xiamen University.
1. Fremstilling av eksperimentelle kirurgiske enheter, vevsfordøyelsesenzym og cellekulturbuffer
<ol><li>Forbered de eksperimentelle kirurgiske enhetene, ved å rengjøre og autoklavere to par oftalmiske kirurgiske sakser og tang dagen før øyeeplet disseksjon, og dere...

<ol>
	<li>Tan, L. X., Germer, C. J., La Cunza, N., Lakkaraju, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Complement+activation,+lipid+metabolism,+and+mitochondrial+injury:+Converging+pathways+in+age-related+macular+degeneration.">Complement activation, lipid metabolism, and mitochondrial injury: Converging pathways in age-related macular degeneration.</a> Redox Biology. 37, 101781 (2020).</li><li>Caceres, P. S., Rodriguez-Boulan, E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Retinal+pigment+epithelium+polarity+in+health+and+blinding+diseases.">Retinal pigment epithelium polarity in health and blinding diseases.</a> Current Opinion in Cell Biology. 62, 37-45 (2020).</li><li>Lakkaraju, 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=The+cell+biology+of+the+retinal+pigment+epithelium.">The cell biology of the retinal pigment epithelium.</a> Progress in Retinal and Eye Research. 78, 100846 (2020).</li><li>Somasundaran, S., Constable, I. J., Mellough, C. B., Carvalho, L. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Retinal+pigment+epithelium+and+age-related+macular+degeneration:+A+review+of+major+disease+mechanisms.">Retinal pigment epithelium and age-related macular degeneration: A review of major disease mechanisms.</a> Clinical &amp; Experimental Ophthalmology. 48 (8), 1043-1056 (2020).</li><li>Ducloyer, J. B., Le Meur, G., Cronin, T., Adjali, O., Weber, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Gene+therapy+for+retinitis+pigmentosa.">Gene therapy for retinitis pigmentosa.</a> Medecine Sciences. 36 (6-7), 607-615 (2020).</li><li>den Hollander, A. I., Roepman, R., Koenekoop, R. K., Cremers, F. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Leber+congenital+amaurosis:+genes,+proteins+and+disease+mechanisms.">Leber congenital amaurosis: genes, proteins and disease mechanisms.</a> Progress in Retinal and Eye Research. 27 (4), 391-419 (2008).</li><li>Samuels, I. S., Bell, B. A., Pereira, A., Saxon, J., Peachey, N. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Early+retinal+pigment+epithelium+dysfunction+is+concomitant+with+hyperglycemia+in+mouse+models+of+type+1+and+type+2+diabetes.">Early retinal pigment epithelium dysfunction is concomitant with hyperglycemia in mouse models of type 1 and type 2 diabetes.</a> Journal of Neurophysiology. 113 (4), 1085-1099 (2015).</li><li>Smith, D. T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Melanin+pigment+in+the+pigmented+epithelium+of+the+retina+of+the+embryo+chick+eye+studied+in+vivo+and+in+vino.">Melanin pigment in the pigmented epithelium of the retina of the embryo chick eye studied in vivo and in vino.</a> The Anatomical Record. 18, 260-261 (1920).</li><li>Schnichels, S., 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=Retina+in+a+dish:+Cell+cultures,+retinal+explants+and+animal+models+for+common+diseases+of+the+retina.">Retina in a dish: Cell cultures, retinal explants and animal models for common diseases of the retina.</a> Progress in Retinal and Eye Research. 81, 100880 (2021).</li><li>D'Antonio-Chronowska, A., D'Antonio, M., Frazer, K. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=In+vitro+differentiation+of+human+iPSC-derived+retinal+pigment+epithelium+cells+(iPSC-RPE).">In vitro differentiation of human iPSC-derived retinal pigment epithelium cells (iPSC-RPE).</a> Bio-Protocol. 9 (24), 3469 (2019).</li><li>Hazim, R. A., Volland, S., Yen, A., Burgess, B. L., Williams, D. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Rapid+differentiation+of+the+human+RPE+cell+line,+ARPE-19,+induced+by+nicotinamide.">Rapid differentiation of the human RPE cell line, ARPE-19, induced by nicotinamide.</a> Experimental Eye Research. 179, 18-24 (2019).</li><li>Dunn, K. C., Aotaki-Keen, A. E., Putkey, F. R., Hjelmeland, L. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=ARPE-19,+a+human+retinal+pigment+epithelial+cell+line+with+differentiated+properties.">ARPE-19, a human retinal pigment epithelial cell line with differentiated properties.</a> Experimental Eye Research. 62 (2), 155-169 (1996).</li><li>. Scientific, T Available from: <a target="_blank" href="https://www.thermofisher.cn/document-connect/document">https://www.thermofisher.cn/document-connect/document</a> (2022)</li><li>. Toyota Available from: <a target="_blank" href="https://www.toyoboglobal.com/seihin/xr/likescience/support/manual/FSQ-201.pdf">https://www.toyoboglobal.com/seihin/xr/likescience/support/manual/FSQ-201.pdf</a> (2022)</li><li>. Abcam Available from: <a target="_blank" href="https://www.abcam.cn/protocols/immunocytochemistry-immunofluorescence-protocol">https://www.abcam.cn/protocols/immunocytochemistry-immunofluorescence-protocol</a> (2022)</li><li>. Zeiss Available from: <a target="_blank" href="https://www.zeiss.com/microscopy/en/products/software/zeiss-zen-lite.html#manuals">https://www.zeiss.com/microscopy/en/products/software/zeiss-zen-lite.html#manuals</a> (2022)</li><li>. Cell Signal Technology Available from: <a target="_blank" href="https://www.cellsignal.cn/learn-and-support/protocols/protocol-western">https://www.cellsignal.cn/learn-and-support/protocols/protocol-western</a> (2022)</li><li>Wang, S., 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=Reversed+senescence+of+retinal+pigment+epithelial+cell+by+coculture+with+embryonic+stem+cell+via+the+TGFbeta+and+PI3K+pathways.">Reversed senescence of retinal pigment epithelial cell by coculture with embryonic stem cell via the TGFbeta and PI3K pathways.</a> Frontiers in Cell and Developmental Biology. 8, 588050 (2020).</li><li>Pfeffer, B. A., Philp, N. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cell+culture+of+retinal+pigment+epithelium:+Special+Issue.">Cell culture of retinal pigment epithelium: Special Issue.</a> Experimental Eye Research. 126, 1-4 (2014).</li><li>Lehmann, G. L., Benedicto, I., Philp, N. J., Rodriguez-Boulan, E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Plasma+membrane+protein+polarity+and+trafficking+in+RPE+cells:+past,+present+and+future.">Plasma membrane protein polarity and trafficking in RPE cells: past, present and future.</a> Experimental Eye Research. 126, 5-15 (2014).</li><li>Anderson, J. M., Van Itallie, C. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Physiology+and+function+of+the+tight+junction.">Physiology and function of the tight junction.</a> Cold Spring Harbor Perspectives in Biology. 1 (2), 002584 (2009).</li><li>Nita, M., Strzalka-Mrozik, B., Grzybowski, A., Mazurek, U., Romaniuk, W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Age-related+macular+degeneration+and+changes+in+the+extracellular+matrix.">Age-related macular degeneration and changes in the extracellular matrix.</a> Medical Science Monitor. 20, 1003-1016 (2014).</li><li>Fernandez-Godino, R., Garland, D. L., Pierce, 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=Isolation,+culture+and+characterization+of+primary+mouse+RPE+cells.">Isolation, culture and characterization of primary mouse RPE cells.</a> Nature Protocols. 11 (7), 1206-1218 (2016).</li><li>Langenfeld, A., Julien, S., Schraermeyer, U. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=An+improved+method+for+the+isolation+and+culture+of+retinal+pigment+epithelial+cells+from+adult+rats.">An improved method for the isolation and culture of retinal pigment epithelial cells from adult rats.</a> Graefe's Archive for Clinical and Experimental Ophthalmology. 253 (9), 1493-1502 (2015).</li><li>Sonoda, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+protocol+for+the+culture+and+differentiation+of+highly+polarized+human+retinal+pigment+epithelial+cells.">A protocol for the culture and differentiation of highly polarized human retinal pigment epithelial cells.</a> Nature Protocols. 4 (5), 662-673 (2009).</li></ol>

Her er det beskrevet en detaljert og optimalisert protokoll for isolering, kultur og karakterisering av RPE-celler fra svin øyeboller, som genererer en god modell for in vitro-karakterisering av RPE-celler og RPE-relaterte lidelsesstudier. Metoder for isolering av RPE fra menneske-, mus- og rotteøyne har tidligere blitt beskrevet23,24,25. Det er imidlertid vanskelig å få tak i menneskelige øyeepler i noen laborator...

Retinalpigmentepitelet (RPE) ligger mellom fotoreceptorer og choriocapillaris i det ytre laget av retina1 med flere funksjoner, inkludert dannelse av blod-retinalbarrieren, transport og utveksling av næringsstoffer og retinale metabolitter, resirkulering av vitamin A for å opprettholde en normal visuell syklus, og fagocytose og clearance av skurfotoreceptor ytre segmenter (POS)2,3 . Siden POS-er krever konstant selvfornyelse for å generere syn, må RPE-cellene kontinuerlig oppsluke frittliggende POS-er for å opprettholde retinal homeostase4. Derfor resulterer RPE-dysfunksjon i mange blinde øyesykdommer, som aldersrelatert makuladegenerasjon (AMD)4, retinitis pigmentosa (RP)5, Leber medfødt amaurose6, diabetisk retinopati7, etc. Til nå er den eksakte patogenesen av de fleste av disse sykdommene fortsatt unnvikende. Som et resultat er RPE-cellekultur etablert for å studere RPE-cellebiologi, patologiske forandringer og underliggende mekanismer.
Som den enkleste modellen for å studere cellebiologi ble kulturen til RPE-celler startet så tidlig som på 1920-tallet8. Selv om ARPE-19 er mye brukt som RPE-celler, gir tap av pigmentering, brosteinsmorfologi, og spesielt barrierefunksjonene i denne cellelinjen mange bekymringer9. Til sammenligning tilbyr kulturen til primære humane RPE-celler et mer realistisk scenario for fysiologiske og patologiske studier9. Den relativt begrensede tilgjengeligheten begrenser imidlertid bruken av dem, og etiske problemer eksisterer alltid. I tillegg brukte flere grupper musemodeller for å dyrke RPE-celler. Imidlertid er størrelsen på museøyet liten, og en enkelt kultur krever vanligvis mange mus, noe som ikke er praktisk9. Nylig har forskere utviklet nye metoder for å bruke menneskelige embryonale stamceller eller induserte pluripotente stamceller for å utlede RPE-celler. Selv om denne teknikken har spesielt potensial for behandling av arvelige RPE-lidelser, er den tidkrevende og krever vanligvis flere måneder å generere modne RPE-celler10. For å overvinne disse problemene, introduserer vi her en lett å følge protokoll for å isolere og dyrke RPE-celler med høy renhet i laboratoriet rutinemessig. Under egnede kulturforhold kan disse cellene vise typiske RPE-funksjoner og vise typiske RPE-morfologier. Derfor kan denne kulturmetoden gi en god modell for å forstå RPE-fysiologi, studere cytotoksisitet, undersøke patologiske mekanismer for relaterte okulære sykdommer og gjennomføre narkotikaundersøkelser.

<table border="1" fo:keep-together.within-page="1" fo:keep-with-next.within-page="always">
	<tbody>
		<tr>
			<td>ARPE-19 cells</td>
			<td>CCTCC</td>
			<td>GDC0323</td>
			<td></td>
		</tr>
		<tr>
			<td>Bovine serum albumin</td>
			<td>Yeasen</td>
			<td>36101ES60</td>
			<td></td>
		</tr>
		<tr>
			<td>Confocal microscopy</td>
			<td>Zeiss</td>
			<td>LSM 880 with Airyscan</td>
			<td></td>
		</tr>
		<tr>
			<td>ChemiDoc Touch</td>
			<td>Bio-Rad</td>
			<td>1708370</td>
			<td></td>
		</tr>
		<tr>
			<td>Cell scraper</td>
			<td>Sangon</td>
			<td>F619301</td>
			<td></td>
		</tr>
		<tr>
			<td>10 cm culture dish</td>
			<td>NEST</td>
			<td>121621EH01</td>
			<td></td>
		</tr>
		<tr>
			<td>12-well culture plate</td>
			<td>NEST</td>
			<td>29821075P</td>
			<td></td>
		</tr>
		<tr>
			<td>DMEM F12 Medium</td>
			<td>Gibco</td>
			<td>C11330500BT</td>
			<td></td>
		</tr>
		<tr>
			<td>DMEM basic Medium</td>
			<td>Gibco</td>
			<td>C11995500BT</td>
			<td></td>
		</tr>
		<tr>
			<td>EVOM2</td>
			<td>World Precision Instruments</td>
			<td>EVOM2</td>
			<td>For TER measurement</td>
		</tr>
		<tr>
			<td>Fetal bovine serum</td>
			<td>ExCell Bio</td>
			<td>FSP500</td>
			<td></td>
		</tr>
		<tr>
			<td>Goat anti-Rabbit IgG (H+L) Highly Cross-Adsorbed Secondary Antibody, Alexa Fluor 488</td>
			<td>ThermoFisher Scientific&#160;</td>
			<td>A-11034</td>
			<td></td>
		</tr>
		<tr>
			<td>Goat anti-Rabbit IgG (H+L) Cross-Adsorbed Secondary Antibody, Alexa Fluor 594</td>
			<td>ThermoFisher Scientific</td>
			<td>A-11012</td>
			<td></td>
		</tr>
		<tr>
			<td>Goat anti Mouse IgG (H/L):HRP</td>
			<td>Bio-Rad</td>
			<td>0300-0108P</td>
			<td></td>
		</tr>
		<tr>
			<td>Goat anti Rabbit IgG (H/L):HRP</td>
			<td>Bio-Rad</td>
			<td>5196-2504</td>
			<td></td>
		</tr>
		<tr>
			<td>hydrocortisone</td>
			<td>MCE</td>
			<td>HY-N0583/CS-2226</td>
			<td></td>
		</tr>
		<tr>
			<td>Hoechst 33342 solution (20 mM)</td>
			<td>ThermoFisher Scientific</td>
			<td>62249</td>
			<td></td>
		</tr>
		<tr>
			<td>LightCycler 96 Instrument</td>
			<td>Roche</td>
			<td>5815916001</td>
			<td></td>
		</tr>
		<tr>
			<td>Liothyronine</td>
			<td>MCE</td>
			<td>HY-A0070A/CS-4141</td>
			<td></td>
		</tr>
		<tr>
			<td>laminin</td>
			<td>Sigma-Aldrich</td>
			<td>L2020-1MG</td>
			<td></td>
		</tr>
		<tr>
			<td>MEM(1X)+GlutaMAX Medium</td>
			<td>Gibco</td>
			<td>10566-016</td>
			<td></td>
		</tr>
		<tr>
			<td>MEM NEAA(100X)</td>
			<td>Gibco</td>
			<td>11140-050</td>
			<td></td>
		</tr>
		<tr>
			<td>Millex-GP syringe filter unit</td>
			<td>Millipore</td>
			<td>SLGPR33RB</td>
			<td></td>
		</tr>
		<tr>
			<td>N1</td>
			<td>Sigma-Aldrich</td>
			<td>SLCF4683</td>
			<td></td>
		</tr>
		<tr>
			<td>NcmECL Ultra</td>
			<td>New Cell&#38;Molecular Biotech</td>
			<td>P10300</td>
			<td></td>
		</tr>
		<tr>
			<td>Non-fat Powdered Milk</td>
			<td>Solarbio</td>
			<td>D8340</td>
			<td></td>
		</tr>
		<tr>
			<td>Nicotinamide</td>
			<td>SparkJade</td>
			<td>SJ-MV0061</td>
			<td></td>
		</tr>
		<tr>
			<td>Na+-K+ ATPase antibody</td>
			<td>Abcam</td>
			<td>ab76020</td>
			<td>Recognize both human and porcine proteins</td>
		</tr>
		<tr>
			<td>PAGE Gel Fast Preparation Kit(10%)</td>
			<td>Epizyme</td>
			<td>PG112</td>
			<td></td>
		</tr>
		<tr>
			<td>primary Human RPE cells&#160;</td>
			<td>-</td>
			<td>-</td>
			<td>Generous gift from Shoubi Wang lab&#160;</td>
		</tr>
		<tr>
			<td>Pierce BCA Protein Assay Kit&#160;</td>
			<td>ThermoFisher Scientific</td>
			<td>23225</td>
			<td></td>
		</tr>
		<tr>
			<td>Prism</td>
			<td>GraphPad by Dotmatics</td>
			<td>version 8.0</td>
			<td></td>
		</tr>
		<tr>
			<td>Protease Inhibitor Cocktails</td>
			<td>APExBIO</td>
			<td>K1024</td>
			<td></td>
		</tr>
		<tr>
			<td>PRE65 antibody</td>
			<td>Proteintech</td>
			<td>17939-1-AP</td>
			<td>Recognize both human and porcine proteins</td>
		</tr>
		<tr>
			<td>PEDF antibody</td>
			<td>Santa Cruz Biotechnology</td>
			<td>sc-390172</td>
			<td>Recognize both human and porcine proteins</td>
		</tr>
		<tr>
			<td>100 x penicillin/streptomycin&#160;</td>
			<td>Biological Industries</td>
			<td>03-031-1BCS</td>
			<td></td>
		</tr>
		<tr>
			<td>Phosphate buffered saline (PBS)</td>
			<td>RARBIO</td>
			<td>RA-9005</td>
			<td></td>
		</tr>
		<tr>
			<td>ReverTra Ace qPCR RT Master Mix</td>
			<td>Toyobo</td>
			<td>FSQ-201</td>
			<td></td>
		</tr>
		<tr>
			<td>RIPA buffer</td>
			<td>ThermoFisher Scientific&#160;</td>
			<td>89900</td>
			<td></td>
		</tr>
		<tr>
			<td>15 mL sterile centrifuge tubes</td>
			<td>NEST</td>
			<td>601052</td>
			<td></td>
		</tr>
		<tr>
			<td>50 mL sterile centrifuge tubes</td>
			<td>NEST</td>
			<td>602052</td>
			<td></td>
		</tr>
		<tr>
			<td>0.25% Trypsin-EDTA</td>
			<td>Gibco</td>
			<td>25200-056</td>
			<td></td>
		</tr>
		<tr>
			<td>Taurine</td>
			<td>Damas-beta</td>
			<td>107-35-7</td>
			<td></td>
		</tr>
		<tr>
			<td>Trizol</td>
			<td>Thermo-Fisher&#160;</td>
			<td>15596026</td>
			<td>RNA extraction solution</td>
		</tr>
		<tr>
			<td>TB Green Fast qPCR Mix</td>
			<td>Takara</td>
			<td>RR430A</td>
			<td></td>
		</tr>
		<tr>
			<td>12-well transwell inserts</td>
			<td>Labselect</td>
			<td>14212</td>
			<td></td>
		</tr>
		<tr>
			<td>VEGF antibody</td>
			<td>Proteintech</td>
			<td>19003-1-AP</td>
			<td>Recognize both human and porcine proteins</td>
		</tr>
		<tr>
			<td>VEGF ELISA kit</td>
			<td>Novusbio</td>
			<td>VAL106</td>
			<td></td>
		</tr>
		<tr>
			<td>ZO-1 antibody</td>
			<td>ABclonal</td>
			<td>A0659</td>
			<td>Recognize both human and porcine proteins</td>
		</tr>
	</tbody>
</table>

primary culture of porcine retinal pigment epithelial cells

Retinalpigmentepitelet (RPE) er et monolag av polariserte pigmenterte epitelceller, lokalisert mellom choroid og neuroretina i netthinnen. Flere funksjoner, inkludert fagocytose, næringsstoff / metabolitttransport, vitamin A-metabolisme, etc., utføres av RPE på daglig basis. RPE-celler er terminalt differensierte epitelceller med liten eller ingen regenerativ kapasitet. Tap av RPE-celler resulterer i flere øyesykdommer som fører til synshemming, for eksempel aldersrelatert makuladegenerasjon. Derfor er etableringen av en in vitro-kulturmodell av primære RPE-celler, som ligner mer på RPE in vivo enn cellelinjer, kritisk for de karakteristiske og mekanistiske studiene av RPE-celler. Tatt i betraktning det faktum at kilden til menneskelige øyeboller er begrenset, lager vi en protokoll for å dyrke primære svin RPE-celler. Ved å bruke denne protokollen kan RPE-celler lett dissosieres fra voksne svin øyeboller. Deretter fester disse dissosierte cellene seg til kulturretter / innsatser, sprer seg for å danne et sammenflytende monolag, og gjenoppretter raskt viktige trekk ved epitelvev in vivo innen 2 wks. Ved qRT-PCR er det demonstrert at primære svin RPE-celler uttrykker flere signaturgener på sammenlignbare nivåer med innfødt RPE-vev, mens uttrykkene til de fleste av disse genene går tapt / sterkt redusert i humane RPE-lignende celler, ARPE-19. Videre viser immunfluorescensfargingen fordelingen av tett kryss, vevspolaritet og cytoskelettproteiner, samt tilstedeværelsen av RPE65, en isomerase som er kritisk for vitamin A-metabolisme, i dyrkede primære celler. Til sammen har vi utviklet en lett-å-følge tilnærming til kultur primære svin RPE celler med høy renhet og innfødte RPE funksjoner, som kan tjene som en god modell for å forstå RPE fysiologi, studere celletoksisitet, og lette narkotika screenings.

De primære pRPE-cellene (pRPE) hos svin ble dyrket i DMEM/basismedier med 10 % FBS, og cellemorfologi under lysmikroskop ble fotografert etter 2 dager (figur 2A), 6 dager (figur 2B) og 10 dager (figur 2C) etter såing. Etter 1 wk ble det observert et sammenflytende monolag av pigmenterte pRPE-celler med brosteinsmorfologier.
For bedre å karakterisere de primære pRPE-cellene ble primære humane RPE-cell...

Watch this Scientific Journal Video about Primary Culture of Porcine Retinal Pigment Epithelial Cells at JoVE.com

Primary Culture of Porcine Retinal Pigment Epithelial Cells

Her presenteres en lett å følge metode for å dyrke primære svin retinale pigmentepitelceller in vitro .

Primær kultur av svin retinal pigment epitelceller

The retinal pigment epithelium (RPE) is a monolayer of polarized pigmented epithelial cells, located between the choroid and neuroretina in the retina. ...

RPE-relaterte lidelser er fortsatt en stor del av blandingssykdommer, men uten effektive rester i virtuell kultur av primære RPE-celler for å tjene som en god modell for fysiologiske og patologiske studier av RPE-relaterte lidelser. I denne protokollen gir vi en enkel å følge protokoll for å dyrke primære IPC-er, som raskt kan gjenopprette og opprettholde senere RP-egenskaper, vi til Vi tror at ved å bruke denne metoden kan folk raskt generere RP-celler fra macistate-studier og beskyttende legemiddelscreeninger som kan lette utviklingen av ny behandling for RPE-lidelser. En trinnvis verdidemonstrasjon vil gjøre denne metoden mye enklere å replikere i forskjellige laboratorier som ønsker å studere RP-celler.For å begynne å tine vevsfordøyelsesenzymet malaquad og sterilisere 1X PBS. Supplert med 2% penicillin og 2% streptomycin ved å filtrere løsningen gjennom en 0,22 mikrometer sprøytefilterenhet. Vask brønnene på kulturplaten og transwell-innsatser med 1X PBS.Fjern PBS fra brønnene og transwells med en pipette og tilsett en milliliter fersk 1X PBS til underkammeret og 600 mikroliter 10 mikrogram per milliliter Laminin-løsning til det øvre kammeret. Inkuber platene og transwell innsatser i denne Heliciculture Incubator over natten ved 37 grader Celsius og 5% karbondioksid. Deretter fjerner du laminatoppløsningen fra det øvre kammeret og vasker med en milliliter kald 1X PBS to ganger før du setter inn cellen Rengjør laminatstrømningshetten med 75% etanol og UV-lys.Forbered tre 50 milliliter sterile sentrifugerør som inneholder rundt 25 milliliter 75% etanol, tre 50 milliliter sterile sentrifugerør som inneholder rundt 25 milliliter 1X PBS, og tre 10 centimeter sterile cellekulturretter som inneholder rundt 15 milliliter 1X PBS. Bløtlegg fire svin øyeepler i ca 15 milliliter 75% etanol i en 10 centimeter petriskål og bruk et par saks og tang for å kutte av alle gjenværende bindevev og muskler. For å dekontaminere øyebollene, suge og vaske fire øyeboller i tre 50 milliliter sterile sentrifugerør fylt med 75% etanol sekvensielt.Vask deretter øyebollene i tre 50 milliliter sterile sentrifugerør fylt med 1X PBS sekvensielt. Inverter rørene hvert minutt for å vaske øyebollene grundig. Flytt de fire øyeeplene til en 10 centimeter steril cellekulturskål som inneholder 1X PBS.Trim den ytre overflaten av hvert øyeboll igjen, for å fjerne optisk nerve og små rusk. Bruk saks til å lage et lite kutt i krysset mellom limbus og sclera. Og fjern deretter hornhinnen, iris, linse, glasslegemet og nevrale netthinnen.Overfør RPE choroid sclera-komplekset til en ny 10 centimeter cellekulturskål og gjør fire kutt for å flate øyekoppen i form av en firkløver. Utfør turer i EDTA-løsningsfordøyelsen ved å plassere de fire RPE choroid sclera-kompleksene i en ny 10 centimeter tallerken og helle 20 milliliter fersk trypsin EDTA-løsning for å slå sammen RPE choroid sclera-kompleksene. Plasser parabolen i cellekulturinkubatoren ved 37 grader Celsius i nesten 30 minutter.Etter 30 minutter, ta parabolen ut av inkubatoren og tilsett 20 milliliter forvarmcellekulturmedier med 10% FBS til parabolen. For å nøytralisere turene i EDTA-løsningen, bruk en fem milliliter overføringspipette for å dissosiere RPE-cellene ved forsiktig pipettering flere ganger. Samle cellesuspensjonene i 15 milliliter sentrifugerør, og pipette deretter forsiktig ytterligere 10 milliliter ferskkulturmedier med FBS for å vaske RPE Choroids sclera-kompleksene på fatet.Samle RPE-cellene ved å sentrifugere rørene ved 300 G i fem minutter ved romtemperatur. Aspirer SuperAgent ved hjelp av en pipette og legg til ytterligere fem milliliter kulturmedier med FBS for å suspendere cellene på nytt. Sentrifuge ved 300 G i ytterligere fem minutter.Dekanter SuperAgent og suspendere cellene med 12 milliliter kulturmedier. Neste frø 100.000 til 200.000 celler per brønn inn i 12 Brønnkulturplater eller transwellinnsatser. Bytt kulturmedium annenhver dag og reduser serumkonsentrasjonen til 1% når cellene dekker overflaten av brønnene helt per innsats.Bytt kulturmedier annenhver dag til cellene høstes. De representative bildene av primære RPE-celler fra svin på dag to, dag seks og dag 10 er vist her. QRTPCR-analysen av mRNA-nivåer av signaturgener i primære svin RPE-celler, primære humane RPE-celler, ARPE 19-celler og svin RPE-choroidvev oppdages av dette grafiske bildet.Her ble GAP DH brukt som rengjøringsgen for RTPCR. Fire biologiske replikaer ble brukt til primære svin RPE-celler og en RPE 19-celler hvor tre biologiske replikasjoner ble brukt til primære humane RPE-celler og svin RPE-choroidvev. Genuttrykksnivåene i ARPE 19-celler ble satt som kontroller.Den vestlige blodanalysen av RPE 65-proteiner i ARPE 19- og svin RPE-celler og i primære humane RPE-celler og svin RPE-choroidvev er vist i denne figuren. Vinculin ble brukt her som en lastekontroll. Denne figuren viser en to ukers kultur av svin RPE-celler i DMEM Basic media med 1% FBS.Celler dyrket med eller uten Lamin ble farget med RPE 65, natriumkalium APTA, Z01 og Hex. TR-målinger i celleark, dyrket med eller uten laminin, er avbildet i denne figuren. Den vestlige blodanalysen av vaskulær endotelial vekstfaktor eller VEGF og pigmentepitelavledet faktor eller PEDF i primære svin RPE og ARPE 19 celler er vist i denne figuren.Sektorfunksjonene til dyrkede primære svin RPE og ARPE 19 celler presenteres i disse bildene. Den store delen av denne protokollen er å oppløse RP-celler fra RPE-chide glialkomplekser. Vi anbefaler å bruke nye turer og løsning hver gang og riktig kontroll av fordøyelsestiden, for å oppløse åtte RP-celler.

primary-culture-of-porcine-retinal-pigment-epithelial-cells

Research

JoVE Journal

Biology

Ex Vivo Culture of Primary Human Fallopian Tube Epithelial Cells

Epithelial ovarian cancer is a leading cause of female cancer mortality in the United States. In contrast to other women-specific cancers, like breast and uterine carcinomas, where death rates have fallen in recent years, ovarian cancer cure rates have remained relatively unchanged over the past two decades 1. This is largely due to the lack of appropriate screening tools for detection of early stage disease where surgery and chemotherapy are most effective 2, 3. As a result, most patients present with advanced stage disease and diffuse abdominal involvement. This is further complicated by the fact that ovarian cancer is a heterogeneous disease with multiple histologic subtypes 4, 5. Serous ovarian carcinoma (SOC) is the most common and aggressive subtype and the form most often associated with mutations in the BRCA genes. Current experimental models in this field involve the use of cancer cell lines and mouse models to better understand the initiating genetic events and pathogenesis of disease 6, 7. Recently, the fallopian tube has emerged as a novel site for the origin of SOC, with the fallopian tube (FT) secretory epithelial cell (FTSEC) as the proposed cell of origin 8, 9. There are currently no cell lines or culture systems available to study the FT epithelium or the FTSEC. Here we describe a novel ex vivo culture system where primary human FT epithelial cells are cultured in a manner that preserves their architecture, polarity, immunophenotype, and response to physiologic and genotoxic stressors. This ex vivo model provides a useful tool for the study of SOC, allowing a better understanding of how tumors can arise from this tissue, and the mechanisms involved in tumor initiation and progression.

Ex Vivo Culture of Primary Human Fallopian Tube Epithelial Cells

The fallopian tube (FT) is emerging as an alternative site of origin for serous ovarian carcinoma (SOC). This protocol describes a novel method for the isolation and ex vivo culture of fallopian tube epithelial cells. This system recapitulates the in vivo epithelium and allows the study of SOC pathogenesis.

Epithelial ovarian cancer is a leading cause of female cancer mortality in the United States. In contrast to other women-specific cancers, like breast and ...

MicroRNA Expression Profiles of Human iPS Cells, Retinal Pigment Epithelium Derived From iPS, and Fetal Retinal Pigment Epithelium

The objective of this report is to describe the protocols for comparing the microRNA (miRNA) profiles of human induced-pluripotent stem (iPS) cells, retinal pigment epithelium (RPE) derived from human iPS cells (iPS-RPE), and fetal RPE. The protocols include collection of RNA for analysis by microarray, and the analysis of microarray data to identify miRNAs that are differentially expressed among three cell types. The methods for culture of iPS cells and fetal RPE are explained. The protocol used for differentiation of RPE from human iPS is also described. The RNA extraction technique we describe was selected to allow maximal recovery of very small RNA for use in a miRNA microarray. Finally, cellular pathway and network analysis of microarray data is explained. These techniques will facilitate the comparison of the miRNA profiles of three different cell types.

The microRNA (miRNA) profiles of human induced-pluripotent stem (iPS) cells, retinal pigment epithelium (RPE) derived from human induced-pluripotent stem (iPS) cells (iPS-RPE), and fetal RPE, were compared.

MikroRNA uttrykk profiler av menneskelige iPS celler, retinal pigment epitelet avledet fra iPS, og Fetal Netthinne Pigment Epitel

The objective of this report is to describe the protocols for comparing the microRNA (miRNA) profiles of human induced-pluripotent stem (iPS) cells, ...

Subretinal Transplantation of Human Embryonic Stem Cell Derived-retinal Pigment Epithelial Cells into a Large-eyed Model of Geographic Atrophy

Geographic atrophy (GA), the late stage of dry age-related macular degeneration is characterized by loss of the retinal pigment epithelial (RPE) layer, which leads to subsequent degeneration of vital retinal structures (e.g., photoreceptors) causing severe vision impairment. Similarly, RPE-loss and decrease in visual acuity is seen in long-term follow up of patients with advanced wet age-related macular degeneration (AMD) receiving intravitreal anti-vascular endothelial growth factor (VEGF) treatment. Therefore, on the one hand, it is fundamental to efficiently derive RPE cells from an unlimited source that could serve as replacement therapy. On the other hand, it is important to assess the behavior and integration of the derived cells in a model of the disease entailing surgical and imaging methods as close as possible to those applied in humans. Here, we provide a detailed protocol based on our previous publications that describes the generation of a preclinical model of GA using the albino rabbit eye, for evaluation of the human embryonic stem cell derived retinal pigment epithelial cells (hESC-RPE) in a clinically relevant setting. Differentiated hESC-RPE are transplanted into naive eyes or eyes with NaIO3-induced GA-like retinal degeneration using a 25 G transvitreal pars plana technique. Evaluation of degenerated and transplanted areas is performed by multimodal high-resolution non-invasive real-time imaging.

Retinal pigment epithelial cells could serve as a cell-replacement therapy for the advanced form of dry age-related macular degeneration. This protocol describes the generation of a large-eyed model of geographic atrophy and the subretinal transplantation of human embryonic stem cell-derived retinal pigment epithelial cells into this model of disease.

Subretinal transplantasjon av menneskelige embryonale stamcelleforskningen avledet retinal Pigment epitelceller i store øyne modell av geografiske Atrophy

Geographic atrophy (GA), the late stage of dry age-related macular degeneration is characterized by loss of the retinal pigment epithelial (RPE) layer, ...

Primary Cell Cultures from the Mouse Retinal Pigment Epithelium

The retinal pigment epithelium (RPE) is a highly polarized multi-functional epithelium that is located between the neural retina and the choroid of the eye. It is a single sheet of pigmented cells that are hexagonally packed and connected by tight junctions. The main functions of the RPE include absorption of light, phagocytosis of the shed photoreceptor outer segments, spatial buffering of ions, transport of nutrients, ions and water as well as active involvement in the visual cycle. With such important and diverse functions, it is critically important to study the biology of RPE cells. A number of RPE cell lines have been established; however, passaged and immortalized cells are known to quickly lose some of the morphological and physiological characteristics of natural RPE cells. Thus, primary cells are more suitable for studying different aspects of RPE cell biology and function. Mouse primary RPE cell culture is very useful to researchers since mouse models are widely used in biological studies, however collecting RPE cells from mouse is also very challenging due to their small size. Here, we present a protocol for establishing primary mouse RPE cell cultures which includes enucleation and dissection of the eyes and isolation of the RPE sheets to yield the cells for culturing. This method enables efficient cell recovery. The RPE cells obtained from two mice&#160;can reach confluency on one 12 mm polyester membrane insert pre-loaded in culture plate after one week of culture and display some of the original properties of bona fide RPE cells such as hexagonal shape and pigmentation after two weeks of culture.

The retinal pigment epithelium (RPE) is a multi-functional epithelium of the eye. Here we present a protocol to establish primary cell cultures derived from the murine RPE.

Primært cellekulturer fra musen netthinnens Pigment epitel

The retinal pigment epithelium (RPE) is a highly polarized multi-functional epithelium that is located between the neural retina and the choroid of the ...

Isolation, Culture, and Genetic Engineering of Mammalian Primary Pigment Epithelial Cells for Non-Viral Gene Therapy

Age-related macular degeneration (AMD) is the most frequent cause of blindness in patients &#62;60 years, affecting ~30 million people worldwide. AMD is a multifactorial disease influenced by environmental and genetic factors, which lead to functional impairment of the retina due to retinal pigment epithelial (RPE) cell degeneration followed by photoreceptor degradation. An ideal treatment would include the transplantation of healthy RPE cells secreting neuroprotective factors to prevent RPE cell death and photoreceptor degeneration. Due to the functional and genetic similarities and the possibility of a less invasive biopsy, the transplantation of iris pigment epithelial (IPE) cells was proposed as a substitute for the degenerated RPE. Secretion of neuroprotective factors by a low number of subretinally-transplanted cells can be achieved by Sleeping Beauty (SB100X) transposon-mediated transfection with genes coding for the pigment epithelium-derived factor (PEDF) and/or the granulocyte macrophage-colony stimulating factor (GM-CSF). We established the isolation, culture, and SB100X-mediated transfection of RPE and IPE cells from various species including rodents, pigs, and cattle. Globes are explanted and the cornea and lens are removed to access the iris and the retina. Using a custom-made spatula, IPE cells are removed from the isolated iris. To harvest RPE cells, a trypsin incubation may be required, depending on the species. Then, using RPE-customized spatula, cells are suspended in medium. After seeding, cells are monitored twice per week and, after reaching confluence, transfected by electroporation. Gene integration, expression, protein secretion, and function were confirmed by qPCR, WB, ELISA, immunofluorescence, and functional assays. Depending on the species, 30,000-5 million (RPE) and 10,000-1.5 million (IPE) cells can be isolated per eye. Genetically modified cells show significant PEDF/GM-CSF overexpression with the capacity to reduce oxidative stress and offers a flexible system for ex vivo&#160;analyses and in vivo studies transferable to humans to develop ocular gene therapy approaches.

Here, a protocol to isolate and transfect primary iris and retinal pigment epithelial cells from various mammals (mice, rat, rabbit, pig, and bovine) is presented. The method is ideally suited to study ocular gene therapy approaches in various set-ups for ex vivo&#160;analyses and&#160;in vivo studies transferable to humans.

Isolasjon, kultur og genteknologi av pattedyr primærpigment epitelceller for ikke-viral genterapi

Age-related macular degeneration (AMD) is the most frequent cause of blindness in patients &#62;60 years, affecting ~30 million people worldwide. AMD is a ...

Efficient Dissection and Culture of Primary Mouse Retinal Pigment Epithelial Cells

Eye disorders affect millions of people worldwide, but the limited availability of human tissues hinders their study. Mouse models are powerful tools to understand the pathophysiology of ocular diseases because of their similarities with human anatomy and physiology. Alterations in the retinal pigment epithelium (RPE), including changes in morphology and function, are common features shared by many ocular disorders. However, successful isolation and culture of primary mouse RPE cells is very challenging. This paper is an updated audiovisual version of the protocol previously published by Fernandez-Godino et al. in 2016 to efficiently isolate and culture primary mouse RPE cells. This method is highly reproducible and results in robust cultures of highly polarized and pigmented RPE monolayers that can be maintained for several weeks on Transwells. This model opens new avenues for the study of the molecular and cellular mechanisms underlying eye diseases. Moreover, it provides a platform to test therapeutic approaches that can be used to treat important eye diseases with unmet medical needs, including inherited retinal disorders and macular degenerations.

This protocol, which was originally reported by Fernandez-Godino et al. in 20161, describes a method to efficiently isolate and culture mouse RPE cells, which form a functional and polarized RPE monolayer within one week on Transwell plates. The procedure takes approximately 3 hours.

Effektiv disseksjon og kultur av primære mus retinal pigment epitelceller

Eye disorders affect millions of people worldwide, but the limited availability of human tissues hinders their study. Mouse models are powerful tools to ...

Isolation of Primary Mouse Retinal Pigmented Epithelium Cells

The retinal pigmented epithelium (RPE) layer lies immediately behind the photoreceptors and harbors a complex metabolic system that plays several critical roles in maintaining the photoreceptors' function. Thus, the RPE structure and function are essential to sustain normal vision. This manuscript presents an established protocol for primary mouse RPE cell isolation. RPE isolation is a great tool to investigate the molecular mechanisms underlying RPE pathology in the different mouse models of ocular disorders. Furthermore, RPE isolation can help in comparing primary mouse RPE cells isolated from wild-type and genetically modified mice, as well as testing drugs that can accelerate the development of therapy for visual disorders. The manuscript presents a step-by-step RPE isolation protocol; the entire procedure, from enucleation to seeding, takes approximately 4 hours. The media shouldn't be changed for 5-7 days after seeding, to allow the growth of the isolated cells without disturbance. This process is followed by the characterization of morphology, pigmentation, and specific markers in the cells via immunofluorescence. Cells can be passaged a maximum of three or four times.

This manuscript describes a simplified protocol for the isolation of retinal pigmented epithelium (RPE) cells from mouse eyes in a stepwise manner. The protocol includes the enucleation and dissection of mouse eyes, followed by the isolation, seeding, and culturing of RPE cells.

Isolering av primære retinale retinale pigmenterte epitelceller

The retinal pigmented epithelium (RPE) layer lies immediately behind the photoreceptors and harbors a complex metabolic system that plays several critical ...

Real-Time Analysis of Bioenergetics in Primary Human Retinal Pigment Epithelial Cells Using High-Resolution Respirometry

Metabolic dysfunction of retinal pigment epithelial cells (RPE) is a key pathogenic driver of retinal diseases such as age-related macular degeneration (AMD) and proliferative vitreoretinopathy (PVR). Since RPE are highly metabolically-active cells, alterations in their metabolic status reflect changes in their health and function. High-resolution respirometry allows for real-time kinetic analysis of the two major bioenergetic pathways, glycolysis and mitochondrial oxidative phosphorylation (OXPHOS), through quantification of the extracellular acidification rate (ECAR) and oxygen consumption rate (OCR), respectively. The following is an optimized protocol for conducting high-resolution respirometry on primary human retinal pigment epithelial cells (H-RPE). This protocol provides a detailed description of the steps involved in producing bioenergetic profiles of RPE to define their basal and maximal OXPHOS and glycolytic capacities. Exposing H-RPE to different drug injections targeting the mitochondrial and glycolytic machinery results in defined bioenergetic profiles, from which key metabolic parameters can be calculated. This protocol highlights the enhanced response of BAM15 as an uncoupling agent compared to carbonyl cyanide p-trifluoromethoxyphenylhydrazone (FCCP) to induce the maximal respiration capacity in RPE. This protocol can be utilized to study the bioenergetic status of RPE under different disease conditions and test the efficacy of novel drugs in restoring the basal metabolic status of RPE.

The metabolic status of human retinal pigment epithelial cells (H-RPE) reflects their health and function. Presented here is an optimized protocol for examining the real-time metabolic flux of H-RPE using high-resolution respirometry.

Sanntidsanalyse av bioenergetikk i primære humane retinale pigmentepitelceller ved bruk av høyoppløselig respirometri

Metabolic dysfunction of retinal pigment epithelial cells (RPE) is a key pathogenic driver of retinal diseases such as age-related macular degeneration ...

Isolation of Retinal Pigment Epithelial Cells from Guinea Pig Eyes

This protocol describes the isolation of cells of the retinal pigment epithelium (RPE) from the eyes of young pigmented guinea pigs for potential application in molecular biology studies, including gene expression analyses. In the context of eye growth regulation and myopia, the RPE likely plays a role as a cellular relay for growth modulatory signals, as it is located between the retina and the two walls of the eye, such as the choroid and sclera. While protocols for isolating the RPE have been developed for both chicks and mice, these protocols have proven not to be directly translatable to the guinea pig, which has become an important and widely used mammalian myopia model. In this study, molecular biology tools were used to examine the expression of specific genes to confirm that the samples were free of contamination from the adjacent tissues. The value of this protocol has already been demonstrated in an RNA-Seq study of RPE from young pigmented guinea pigs exposed to myopia-inducing optical defocus. Beyond eye growth regulation, this protocol has other potential applications in studies of retinal diseases, including myopic maculopathy, one of the leading causes of blindness in myopes, in which the RPE has been implicated. The main advantage of this technique is that it is relatively simple and&#160;once perfected, yields high-quality RPE samples suitable for molecular biology studies, including RNA analysis.

We describe a simple and efficient method for isolating cells of the retinal pigment epithelium (RPE) cells from the eyes of young pigmented guinea pigs. This procedure allows for follow-up molecular biology studies on the isolated RPE, including gene expression analyses.

Isolering av retinalpigmentepitelceller fra marsvinøyne

This protocol describes the isolation of cells of the retinal pigment epithelium (RPE) from the eyes of young pigmented guinea pigs for potential ...

Protokoll for isolering av brystepitelceller fra humant vev

Isolation and Culture of Primary Human Mammary Epithelial Cells

The mammary gland is a fundamental structure of the breast and plays an essential role in reproduction. Human mammary epithelial cells (HMECs), which are the origin cells of breast cancer and other breast-related inflammatory diseases, have garnered considerable attention. However, isolating and culturing primary HMECs in vitro for research purposes has been challenging due to their highly differentiated, keratinized nature and their short lifespan. Therefore, developing a simple and efficient method to isolate and culture HMECs is of great scientific value for the study of breast biology and breast-related diseases. In this study, we successfully isolated primary HMECs from small amounts of mammary tissue by digestion with a mixture of enzymes combined with an initial culture in 5% fetal bovine serum-DMEM containing the Rho-associated kinase (ROCK) inhibitor Y-27632, followed by culture expansion in serum-free keratinocyte medium. This approach selectively promotes the growth of epithelial cells, resulting in an optimized cell yield. The simplicity and convenience of this method make it suitable for both laboratory and clinical research, which should provide valuable insights into these important areas of study.

Forfatter Spotlight: Integrering av østlig og vestlig medisin for behandling av granulomatøs mastitt

The present study reports an easier, time-saving, and economical protocol to efficiently isolate and grow primary human mammary epithelial cells (HMECs) from small amounts of mammary tissue. This protocol is suitable for quickly producing primary HMECs both for laboratory and clinical applications.

Isolering og kultur av primære humane brystepitelceller

The mammary gland is a fundamental structure of the breast and plays an essential role in reproduction. Human mammary epithelial cells (HMECs), which are ...