<meta charset="utf8"></head><body>세포 배양을 위한 심근 모방 추가 세포 기질 생성

<ol>
	<li>Gattazzo, F., Urciuolo, A., Bonaldo, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Extracellular+matrix:+A+dynamic+microenvironment+for+stem+cell+niche.">Extracellular matrix: A dynamic microenvironment for stem cell niche.</a> Biochim Biophys Acta. 1840 (8), 2506-2519 (2014).</li><li>Zhang, Y., 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=Tissue-specific+extracellular+matrix+coatings+for+the+promotion+of+cell+proliferation+and+maintenance+of+cell+phenotype.">Tissue-specific extracellular matrix coatings for the promotion of cell proliferation and maintenance of cell phenotype.</a> Biomaterials. 30 (23-24), 4021-4028 (2009).</li><li>Xing, H., Lee, H., Luo, L., Kyriakides, T. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Extracellular+matrix-derived+biomaterials+in+engineering+cell+function.">Extracellular matrix-derived biomaterials in engineering cell function.</a> Biotechnol Adv. 42, 107421 (2020).</li><li>Andr&#233;s-Delgado, L., Mercader, N. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Interplay+between+cardiac+function+and+heart+development.">Interplay between cardiac function and heart development.</a> Biochim Biophys Acta. 1863 (7), 1707-1716 (2016).</li><li>Hall, C., Gehmlich, K., Denning, C., Pavlovic, D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Complex+relationship+between+cardiac+fibroblasts+and+cardiomyocytes+in+health+and+disease.">Complex relationship between cardiac fibroblasts and cardiomyocytes in health and disease.</a> J Am Heart Assoc. 10 (5), e019338 (2021).</li><li>Castaldo, C., Chimenti, I. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cardiac+progenitor+cells:+The+matrix+has+you.">Cardiac progenitor cells: The matrix has you.</a> Stem Cells Transl Med. 7, 506-510 (2018).</li><li>Nurzynska, D., Iruegas, M. E., Castaldo, C., M&#252;ller-Best, P., Di Meglio, F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Application+of+biotechnology+in+myocardial+regeneration-tissue+engineering+triad:+cells,+scaffolds,+and+signaling+molecules.">Application of biotechnology in myocardial regeneration-tissue engineering triad: cells, scaffolds, and signaling molecules.</a> Biomed Res Int. 2013, 236893 (2013).</li><li>Giacca, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cardiac+regeneration+after+myocardial+infarction:+An+approachable+goal.">Cardiac regeneration after myocardial infarction: An approachable goal.</a> Curr Cardiol Rep. 22 (10), 122 (2020).</li><li>Spedicati, 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=Biomimetic+design+of+bioartificial+scaffolds+for+the+in+vitro+modeling+of+human+cardiac+fibrosis.">Biomimetic design of bioartificial scaffolds for the in vitro modeling of human cardiac fibrosis.</a> Front Bioeng Biotechnol. 10, 983782 (2022).</li><li>Souders, C. A., Bowers, S. L., Baudino, T. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cardiac+fibroblast:+The+renaissance+cell.">Cardiac fibroblast: The renaissance cell.</a> Circ Res. 105 (12), 1164-1176 (2009).</li><li>Castaldo, 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=Cardiac+fibroblast-derived+extracellular+matrix+(biomatrix)+as+a+model+for+the+studies+of+cardiac+primitive+cell+biological+properties+in+normal+and+pathological+adult+human+heart.">Cardiac fibroblast-derived extracellular matrix (biomatrix) as a model for the studies of cardiac primitive cell biological properties in normal and pathological adult human heart.</a> Biomed Res Int. 2013, 352370 (2013).</li><li>Nurzynska, 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=In+vitro+produced+cardiac+extracellular+matrix+for+studies+of+myocardium+regeneration+potential.">In vitro produced cardiac extracellular matrix for studies of myocardium regeneration potential.</a> Tissue Eng Part A. 21, 77 (2015).</li><li>VanWinkle, W. B., Snuggs, M. B., Buja, 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=Cardiac+ECM:+A+biosynthetic+extracellular+matrix+for+cardiomyocyte+culture.">Cardiac ECM: A biosynthetic extracellular matrix for cardiomyocyte culture.</a> In Vitro Cell Dev Biol Anim. 32, 478-485 (1996).</li><li>Santhakumar, R., Vidyasekar, P., Verma, R. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cardiac+ECM:+A+nano-matrix+scaffold+with+potential+application+in+cardiac+regeneration+using+mesenchymal+stem+cells.">Cardiac ECM: A nano-matrix scaffold with potential application in cardiac regeneration using mesenchymal stem cells.</a> PLoS One. 9 (12), e114697 (2014).</li><li>Gopal, S., Multhaupt, H. A. B., Couchman, J. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Calcium+in+cell-extracellular+matrix+interactions.">Calcium in cell-extracellular matrix interactions.</a> Adv Exp Med Biol. 1131, 1079-1102 (2020).</li><li>Hellewell, A. L., Rosini, S., Adams, J. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+Rapid,+scalable+method+for+the+isolation,+functional+study,+and+analysis+of+cell-derived+extracellular+matrix.">A Rapid, scalable method for the isolation, functional study, and analysis of cell-derived extracellular matrix.</a> J Vis Exp. (119), e55051 (2017).</li><li>Nurzynska, D., Di Meglio, F., Montagnani, S., Castaldo, C., Hayat, M. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cardiac+stem+cells+derived+from+epithelial-mesenchymal+transition+of+epicardial+cells:+role+in+heart+regeneration+(method).">Cardiac stem cells derived from epithelial-mesenchymal transition of epicardial cells: role in heart regeneration (method).</a> Stem Cells and Cancer Stem Cells, vol. 5: Therapeutic Applications in Disease and Injury. , 109-115 (2012).</li><li>Pagano, F., 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=Normal+versus+pathological+cardiac+fibroblast-derived+extracellular+matrix+differentially+modulates+cardiosphere-derived+cell+paracrine+properties+and+commitment.">Normal versus pathological cardiac fibroblast-derived extracellular matrix differentially modulates cardiosphere-derived cell paracrine properties and commitment.</a> Stem Cells Int. 2017, 7396462 (2017).</li><li>Xu, Y., 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=Vitamin+C+regulates+the+profibrotic+activity+of+fibroblasts+in+in+vitro+replica+settings+of+myocardial+infarction.">Vitamin C regulates the profibrotic activity of fibroblasts in in vitro replica settings of myocardial infarction.</a> Int J Mol Sci. 24 (9), 8379 (2023).</li><li>Jaffr&#233;, F., 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=Serotonin+and+angiotensin+receptors+in+cardiac+fibroblasts+coregulate+adrenergic-dependent+cardiac+hypertrophy.">Serotonin and angiotensin receptors in cardiac fibroblasts coregulate adrenergic-dependent cardiac hypertrophy.</a> Circ Res. 104 (1), 113-123 (2009).</li><li>B&#322;yszczuk, 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=Activated+cardiac+fibroblasts+control+contraction+of+human+fibrotic+cardiac+microtissues+by+a+&#946;-adrenoreceptor-dependent+mechanism.">Activated cardiac fibroblasts control contraction of human fibrotic cardiac microtissues by a &#946;-adrenoreceptor-dependent mechanism.</a> Cells. 9 (5), 1270 (2020).</li><li>Duval, K., 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=Modeling+physiological+events+in+2D+vs.+3D+cell+culture.">Modeling physiological events in 2D vs. 3D cell culture.</a> Physiol. 32 (4), 266-277 (2017).</li><li>Ungerleider, J. L., 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=Fabrication+and+characterization+of+injectable+hydrogels+derived+from+decellularized+skeletal+and+cardiac+muscle.">Fabrication and characterization of injectable hydrogels derived from decellularized skeletal and cardiac muscle.</a> Methods. 84, 53-59 (2015).</li><li>Seo, Y., 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=Decellularized+heart+ECM+hydrogel+using+supercritical+carbon+dioxide+for+improved+angiogenesis.">Decellularized heart ECM hydrogel using supercritical carbon dioxide for improved angiogenesis.</a> Acta Biomater. 67, 270-281 (2018).</li><li>Liguori, G. 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=Molecular+and+biomechanical+clues+from+cardiac+tissue+decellularized+extracellular+matrix+drive+stromal+cell+plasticity.">Molecular and biomechanical clues from cardiac tissue decellularized extracellular matrix drive stromal cell plasticity.</a> Front Bioeng Biotechnol. 8, 520 (2020).</li><li>Silva, A. C., Pereira, C., Fonseca, A. C. R. G., Pinto-do-&#211;, P., Nascimento, 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=Bearing+my+heart:+The+role+of+extracellular+matrix+on+cardiac+development,+homeostasis,+and+injury+response.">Bearing my heart: The role of extracellular matrix on cardiac development, homeostasis, and injury response.</a> Front Cell Dev Biol. 8, 621644 (2021).</li></ol>

<table border="1" fo:keep-together.within-page="1" fo:keep-with-next.within-page="always">
	<tbody>
		<tr>
			<td>1 L laboratory bottle&#160;</td>
			<td>VWR</td>
			<td>215-1595</td>
			<td>Clean and autoclave before use</td>
		</tr>
		<tr>
			<td>10 mL serological pipet</td>
			<td>Falcon</td>
			<td>357551</td>
			<td>Sterile,&#160; polystyrene</td>
		</tr>
		<tr>
			<td>100 mm glass plate&#160;</td>
			<td>VWR</td>
			<td>391-0578</td>
			<td>Clean and autoclave before use</td>
		</tr>
		<tr>
			<td>100 mm plates</td>
			<td>Falcon</td>
			<td>351029</td>
			<td>Treated, sterile cell culture dish</td>
		</tr>
		<tr>
			<td>15 mL sterile tubes</td>
			<td>Falcon</td>
			<td>352097</td>
			<td>Centrifuge sterile tubes, polypropylene</td>
		</tr>
		<tr>
			<td>22 mm x 22 mm cover glasses</td>
			<td>VWR</td>
			<td>631-1570</td>
			<td>Autoclave before use</td>
		</tr>
		<tr>
			<td>25 mL serological pipet</td>
			<td>Falcon</td>
			<td>357525</td>
			<td>Sterile,&#160; polystyrene</td>
		</tr>
		<tr>
			<td>250 mL laboratory bottle&#160;</td>
			<td>VWR</td>
			<td>215-1593</td>
			<td>Clean and autoclave before use</td>
		</tr>
		<tr>
			<td>35 mm plates</td>
			<td>Falcon</td>
			<td>353001</td>
			<td>Treated, sterile cell culture dish</td>
		</tr>
		<tr>
			<td>5 mL serological pipet</td>
			<td>Falcon</td>
			<td>357543</td>
			<td>Sterile, polystyrene</td>
		</tr>
		<tr>
			<td>50 mL sterile tubes</td>
			<td>Falcon</td>
			<td>352098</td>
			<td>Centrifuge sterile tubes, polypropylene</td>
		</tr>
		<tr>
			<td>500 mL laboratory bottle</td>
			<td>VWR</td>
			<td>215-1594</td>
			<td>Clean and autoclave before use</td>
		</tr>
		<tr>
			<td>60 mm plates</td>
			<td>Falcon</td>
			<td>353004</td>
			<td>Treated, sterile cell culture dish</td>
		</tr>
		<tr>
			<td>Ammonium hydroxide (NH4OH)</td>
			<td>Sigma- Aldrich</td>
			<td>338818</td>
			<td>Liquid</td>
		</tr>
		<tr>
			<td>Disposable scalpels</td>
			<td>VWR</td>
			<td>233-5526</td>
			<td>Sterile and disposable</td>
		</tr>
		<tr>
			<td>Dulbecco&#39;s Modified Eagle Medium (DMEM)</td>
			<td>Sigma- Aldrich</td>
			<td>D6429-500ml</td>
			<td>Store at 2-8 &#176;C; avoid exposure to light</td>
		</tr>
		<tr>
			<td>Fetal Bovine Serum (FBS)</td>
			<td>Sigma- Aldrich</td>
			<td>F9665-500ml</td>
			<td>Store at -20 &#176;C. The serum should be aliquoted into smaller working volumes</td>
		</tr>
		<tr>
			<td>Fine forceps</td>
			<td>VWR</td>
			<td>232-1317</td>
			<td>Clean and autoclave before use</td>
		</tr>
		<tr>
			<td>Gelatin from porcine skin</td>
			<td>Sigma- Aldrich</td>
			<td>G1890-100G</td>
			<td>Commercial Powder</td>
		</tr>
		<tr>
			<td>Hank&#39;s Balanced Salt Solution (HBSS)</td>
			<td>Sigma- Aldrich</td>
			<td>H1387-1L</td>
			<td>Powder</td>
		</tr>
		<tr>
			<td>Large surgical scissors</td>
			<td>VWR</td>
			<td>233-1211</td>
			<td>Clean and autoclave before use</td>
		</tr>
		<tr>
			<td>Microdissecting scissors&#160;</td>
			<td>Sigma- Aldrich</td>
			<td>S3146</td>
			<td>Clean and autoclave before use</td>
		</tr>
		<tr>
			<td>Penicillin and Streptomycin&#160;</td>
			<td>Sigma- Aldrich</td>
			<td>P4333-100ml</td>
			<td>Store at -20&#176;C. The solution&#160; should be aliquoted into smaller working volumes</td>
		</tr>
		<tr>
			<td>Potassium Chloride</td>
			<td>Sigma- Aldrich</td>
			<td>P9333</td>
			<td>Powder</td>
		</tr>
		<tr>
			<td>Potassium Phosphate Monobasic</td>
			<td>Sigma- Aldrich</td>
			<td>P5665</td>
			<td>Powder</td>
		</tr>
		<tr>
			<td>Sodium Chloride&#160;</td>
			<td>Sigma- Aldrich</td>
			<td>S7653</td>
			<td>Powder</td>
		</tr>
		<tr>
			<td>Sodium Phosphate Dibasic</td>
			<td>Sigma- Aldrich</td>
			<td>94046</td>
			<td>Powder</td>
		</tr>
		<tr>
			<td>Stericup Filters</td>
			<td>Millipore</td>
			<td>S2GPU05RE</td>
			<td>Sterile and disposable 0.22 mm filter membranes&#160;</td>
		</tr>
		<tr>
			<td>Triton X-100</td>
			<td>Sigma- Aldrich</td>
			<td>9002-93-1</td>
			<td>Liquid</td>
		</tr>
		<tr>
			<td>Trypsin-EDTA</td>
			<td>Sigma- Aldrich</td>
			<td>T4049-100ml</td>
			<td>Store at -20 &#176;C. It should be aliquoted into smaller working volumes</td>
		</tr>
	</tbody>
</table>

production of cardiac extracellular matrix from adult human fibroblasts for culture dish coating

Read this Scientific Article Protocol about Production of Cardiac Extracellular Matrix from Adult Human Fibroblasts for Culture Dish Coating at JoVE.com

<meta charset="utf8"></head><body>저자 스포트라이트: Studying Cardiac Cell-Matrix Interactions In Vitro (체외에서 심장 세포-매트릭스 상호 작용 연구)

Culture Dish Coating을 위한 성인 인간 섬유아세포의 심장 세포외 기질 생산

The myocardium is composed of cardiomyocytes and an even greater number of fibroblasts, the latter being responsible for extracellular matrix production. ...

production-cardiac-extracellular-matrix-from-adult-human-fibroblasts

Research

JoVE Journal

Biology

Production of Cardiac Extracellular Matrix from Adult Human Fibroblasts for Culture Dish Coating

505 조회수.  University of Salerno. 프로토콜에서는 세포 간 기질 상호 작용 및 심근 특이적 세포외 기질이 심장 세포에 미치는 영향을 연구하기 위한 기질로서 심장 세포외 기질을 시험관 내에서 얻을 수 있는 실현 가능한 방법을 설명합니다. 현재 연구 라인은 세포와 함께 씨앗이 될 수 있는 생체 모방 물질로 만든 생체 공학적 3차원 지지체 개발에 중점을 두고 있습니다. 이 물질은 ?...

비디오: 저자 스포트라이트: Studying Cardiac Cell-Matrix Interactions In Vitro (체외에서 심장 세포-매트릭스 상호 작용 연구)

Isolation and Culture of Adult Epithelial Stem Cells from Human Skin

The homeostasis of all self-renewing tissues is dependent on adult stem cells. As undifferentiated stem cells undergo asymmetric divisions, they generate daughter cells that retain the stem cell phenotype and transit-amplifying cells (TA cells) that migrate from the stem cell niche, undergo rapid proliferation and terminally differentiate to repopulate the tissue.
Epithelial stem cells have been identified in the epidermis, hair follicle, and intestine as cells with a high in vitro proliferative potential and as slow-cycling label-retaining cells in vivo 1-3. Adult, tissue-specific stem cells are responsible for the regeneration of the tissues in which they reside during normal physiologic turnover as well as during times of stress 4-5. Moreover, stem cells are generally considered to be multi-potent, possessing the capacity to give rise to multiple cell types within the tissue 6. For example, rodent hair follicle stem cells can generate epidermis, sebaceous glands, and hair follicles 7-9. We have shown that stem cells from the human hair follicle bulge region exhibit multi-potentiality 10.
Stem cells have become a valuable tool in biomedical research, due to their utility as an in vitro system for studying developmental biology, differentiation, tumorigenesis and for their possible therapeutic utility. It is likely that adult epithelial stem cells will be useful in the treatment of diseases such as ectodermal dysplasias, monilethrix, Netherton syndrome, Menkes disease, hereditary epidermolysis bullosa and alopecias 11-13. Additionally, other skin problems such as burn wounds, chronic wounds and ulcers will benefit from stem cell related therapies 14,15. Given the potential for reprogramming of adult cells into a pluripotent state (iPS cells)16,17, the readily accessible and expandable adult stem cells in human skin may provide a valuable source of cells for induction and downstream therapy for a wide range of disease including diabetes and Parkinson's disease.

A rapid, robust way of isolating viable adult epithelial stem cells from human skin is described. The method utilizes enzymatic digestion of skin collagen matrix , followed by plucking of hair follicles and isolation of single cell suspensions or tissue fragments for cell culture.

사람의 피부에서 성인 상피 줄기 세포의 분리 및 문화

The homeostasis of all self-renewing tissues is dependent on adult stem cells. As undifferentiated stem cells undergo asymmetric divisions, they generate ...

연구

생물학

Selecting and Isolating Colonies of Human Induced Pluripotent Stem Cells Reprogrammed from Adult Fibroblasts

Herein we present a protocol of reprogramming human adult fibroblasts into human induced pluripotent stem cells (hiPSC) using retroviral vectors encoding Oct3/4, Sox2, Klf4 and c-myc (OSKM) in the presence of sodium butyrate 1-3. We used this method to reprogram late passage (&gt;p10) human adult fibroblasts derived from Friedreich's ataxia patient (GM03665, Coriell Repository). The reprogramming approach includes highly efficient transduction protocol using repetitive centrifugation of fibroblasts in the presence of virus-containing media. The reprogrammed hiPSC colonies were identified using live immunostaining for Tra-1-81, a surface marker of pluripotent cells, separated from non-reprogrammed fibroblasts and manually passaged 4,5. These hiPSC were then transferred to Matrigel plates and grown in feeder-free conditions, directly from the reprogramming plate. Starting from the first passage, hiPSC colonies demonstrate characteristic hES-like morphology. Using this protocol more than 70% of selected colonies can be successfully expanded and established into cell lines. The established hiPSC lines displayed characteristic pluripotency markers including surface markers TRA-1-60 and SSEA-4, as well as nuclear markers Oct3/4, Sox2 and Nanog. 
The protocol presented here has been established and tested using adult fibroblasts obtained from Friedreich's ataxia patients and control individuals 6, human newborn fibroblasts, as well as human keratinocytes.

We present a protocol for efficient reprogramming of human somatic cells into human induced pluripotent stem cells (hiPSC) using retroviral vectors encoding Oct3/4, Sox2, Klf4 and c-myc (OSKM) and identification of correctly reprogrammed hiPSC by live staining with Tra-1-81 antibody.

인간 유도 Pluripotent 줄기 세포의 선택 및 분리 식민지는 성인 섬유아 세포에서 다시 프로그램

Herein we present a protocol of reprogramming human adult fibroblasts into human induced pluripotent stem cells (hiPSC) using retroviral vectors encoding ...

Isolation and Culture of Individual Myofibers and their Satellite Cells from Adult Skeletal Muscle

Muscle regeneration in the adult is performed by resident stem cells called satellite cells. Satellite cells are defined by their position between the basal lamina and the sarcolemma of each myofiber. Current knowledge of their behavior heavily relies on the use of the single myofiber isolation protocol. In 1985, Bischoff described a protocol to isolate single live fibers from the Flexor Digitorum Brevis (FDB) of adult rats with the goal to create an in vitro system in which the physical association between the myofiber and its stem cells is preserved 1. In 1995, Rosenblattmodified the Bischoff protocol such that myofibers are singly picked and handled separately after collagenase digestion instead of being isolated by gravity sedimentation 2, 3. The Rosenblatt or Bischoff protocol has since been adapted to different muscles, age or conditions 3-6. The single myofiber isolation technique is an indispensable tool due its unique advantages. First, in the single myofiber protocol, satellite cells are maintained beneath the basal lamina. This is a unique feature of the protocol as other techniques such as Fluorescence Activated Cell Sorting require chemical and mechanical tissue dissociation 7. Although the myofiber culture system cannot substitute for in vivo studies, it does offer an excellent platform to address relevant biological properties of muscle stem cells. Single myofibers can be cultured in standard plating conditions or in floating conditions. Satellite cells on floating myofibers are subjected to virtually no other influence than the myofiber environment. Substrate stiffness and coating have been shown to influence satellite cells' ability to regenerate muscles 8, 9 so being able to control each of these factors independently allows discrimination between niche-dependent and -independent responses. Different concentrations of serum have also been shown to have an effect on the transition from quiescence to activation. To preserve the quiescence state of its associated satellite cells, fibers should be kept in low serum medium 1-3. This is particularly useful when studying genes involved in the quiescence state. In serum rich medium, satellite cells quickly activate, proliferate, migrate and differentiate, thus mimicking the in vivo regenerative process 1-3. The system can be used to perform a variety of assays such as the testing of chemical inhibitors; ectopic expression of genes by virus delivery; oligonucleotide based gene knock-down or live imaging. This video article describes the protocol currently used in our laboratory to isolate single myofibers from the Extensor Digitorum Longus (EDL) muscle of adult mice (6-8 weeks old).

Isolation and culture of myofibers is the gold standard in vitro system to study the transition of satellite cells through quiescence, activation and differentiation. Importantly, the single myofiber culture system preserves the myofiber/stem cell association, which is an essential component of the muscle stem cell niche.

성인 골격근의 개인 Myofibers 및 위성 세포의 분리와 문화

Muscle  regeneration in the adult is performed by resident stem cells called satellite  cells. Satellite cells are defined by  their position between the ...

Na&iuml;ve Adult Stem Cells Isolation from Primary Human Fibroblast Cultures

Over the last decade, several adult stem cell populations have been identified in human skin 1-4. The isolation of multipotent adult dermal precursors was first reported by Miller F. D laboratory 5, 6. These early studies described a multipotent precursor cell population from adult mammalian dermis 5. These cells--termed SKPs, for skin-derived precursors-- were isolated and expanded from rodent and human skin and differentiated into both neural and mesodermal progeny, including cell types never found in skin, such as neurons 5. Immunocytochemical studies on cultured SKPs revealed that cells expressed vimentin and nestin, an intermediate filament protein expressed in neural and skeletal muscle precursors, in addition to fibronectin and multipotent stem cell markers 6. Until now, the adult stem cells population SKPs have been isolated from freshly collected mammalian skin biopsies.
Recently, we have established and reported that a population of skin derived precursor cells could remain present in primary fibroblast cultures established from skin biopsies 7. The assumption that a few somatic stem cells might reside in primary fibroblast cultures at early population doublings was based upon the following observations: (1) SKPs and primary fibroblast cultures are derived from the dermis, and therefore a small number of SKP cells could remain present in primary dermal fibroblast cultures and (2) primary fibroblast cultures grown from frozen aliquots that have been subjected to unfavorable temperature during storage or transfer contained a small number of cells that remained viable 7. These rare cells were able to expand and could be passaged several times. This observation suggested that a small number of cells with high proliferation potency and resistance to stress were present in human fibroblast cultures 7.
We took advantage of these findings to establish a protocol for rapid isolation of adult stem cells from primary fibroblast cultures that are readily available from tissue banks around the world (Figure 1). This method has important significance as it allows the isolation of precursor cells when skin samples are not accessible while fibroblast cultures may be available from tissue banks, thus, opening new opportunities to dissect the molecular mechanisms underlying rare genetic diseases as well as modeling diseases in a dish.

Na&amp;#239;ve Adult Stem Cells Isolation from Primary Human Fibroblast Cultures

We report a method to isolate na&#239;ve multipotent skin-derived precursor (SKP) cells from primary human fibroblast cultures. We show that these SKPs derived from fibroblast cultures share similar stem cell properties to the ones derived directly from human skin biopsies. These cells express the neural crest marker, nestin, in addition to the multipotent markers such as OCT4 and Nanog.

인간의 기본 섬유 아세포 배양에서 순진 성인 줄기 세포 분리

Over the last decade, several adult stem cell  populations have been identified in human skin 1-4.  The isolation of multipotent adult dermal precursors ...

Efficient Production and Purification of Recombinant Murine Kindlin-3 from Insect Cells for Biophysical Studies

Kindlins are essential coactivators, with talin, of the cell surface receptors&#160;integrins and also participate in integrin outside-in signalling, and the control of gene transcription in the cell nucleus. The kindlins are ~75 kDa multidomain proteins and bind to an NPxY motif and upstream T/S cluster of the integrin &#946;-subunit cytoplasmic tail. The hematopoietically-important kindlin isoform, kindlin-3, is critical for platelet aggregation during thrombus formation, leukocyte rolling in response to infection and inflammation and osteoclast podocyte formation in bone resorption. Kindlin-3&#39;s role in these processes has resulted in extensive cellular and physiological studies. However, there is a need for an efficient method of acquiring high quality milligram quantities of the protein for further studies. We have developed a protocol, here described, for the efficient expression and purification of recombinant murine kindlin-3 by use of a baculovirus-driven expression system in Sf9 cells yielding sufficient amounts of high purity full-length protein to allow its biophysical characterization. The same approach could be taken in the study of the other mammalian kindlin isoforms.

Kindlins are fundamental to cell adhesion through integrins but studies of them have been hampered by the difficulty encountered in expressing them recombinantly in bacterial hosts. We describe here methods for their efficient production in baculovirus-infected insect cells.

의 효율적인 생산 및 정제 재조합 쥐과 Kindlin-3 생물 물리학 연구 곤충 세포에서

Kindlins are essential coactivators, with talin, of the cell surface receptors&#160;integrins and also participate in integrin outside-in signalling, and ...

Isolation and Culture of Dental Epithelial Stem Cells from the Adult Mouse Incisor

Understanding the cellular and molecular mechanisms that underlie tooth regeneration and renewal has become a topic of great interest1-4, and the mouse incisor provides a model for these processes. This remarkable organ grows continuously throughout the animal&#39;s life and generates all the necessary cell types from active pools of adult stem cells housed in the labial (toward the lip) and lingual (toward the tongue) cervical loop (CL) regions. Only the dental stem cells from the labial CL give rise to ameloblasts that generate enamel, the outer covering of teeth, on the labial surface. This asymmetric enamel formation allows abrasion at the incisor tip, and progenitors and stem cells in the proximal incisor ensure that the dental tissues are constantly replenished. The ability to isolate and grow these progenitor or stem cells in vitro allows their expansion and opens doors to numerous experiments not achievable in vivo, such as high throughput testing of potential stem cell regulatory factors. Here, we describe and demonstrate a reliable and consistent method to culture cells from the labial CL of the mouse incisor.

The continuously growing mouse incisor provides a model for studying renewal of dental tissues from dental epithelial stem cells (DESCs). A robust system for consistently and reliably obtaining these cells from the incisor and expanding them in vitro is reported here.

성인 마우스 앞니의 치아 상피 줄기 세포의 분리 및 문화

Understanding the cellular and molecular mechanisms that underlie tooth regeneration and renewal has become a topic of great interest1-4, and the mouse ...

Isolation and Culture of Adult Mouse Cardiomyocytes for Cell Signaling and in vitro Cardiac Hypertrophy

Technological advances have made genetically modified mice, including transgenic and gene knockout mice, an essential tool in many research fields. Adult cardiomyocytes are widely accepted as a good model for cardiac cellular physiology and pathophysiology, as well as for pharmaceutical intervention. Genetically modified mice preclude the need for complicated cardiomyocyte infection processes to generate the desired genotype, which are inefficient due to cardiomyocytes&#8217; terminal differentiation. Isolation and culture of high quantity and quality functional cardiomyocytes will dramatically benefit cardiovascular research and provide an important tool for cell signaling transduction research and drug development. Here, we describe a well-established method for isolation of adult mouse cardiomyocytes that can be implemented with little training. The mouse heart is excised and cannulated to an isolated heart system, then perfused with a calcium-free and high potassium buffer followed by type II collagenase digestion in Langendorff retrograde perfusion mode. This protocol yields a consistent result for the collection of functional adult mouse cardiomyocytes from a variety of genetically modified mice.

Isolation and Culture of Adult Mouse Cardiomyocytes for Cell Signaling and in vitro Cardiac Hypertrophy

We describe a reliable method for isolation of adult mouse cardiomyocytes. This protocol yields a consistent result for the culture of functional adult cardiomyocytes from a variety of genetically modified mice.

분리 및 문화 성인 마우스 세포 신호 전달 용의 Cardiomyocytes과의<em&gt; 시험관</em&gt; 심장 비대

Technological advances have made genetically modified mice, including transgenic and gene knockout mice, an essential tool in many research fields. Adult ...

Enrichment of Extracellular Matrix Proteins from Tissues and Digestion into Peptides for Mass Spectrometry Analysis

The extracellular matrix (ECM) is a complex meshwork of cross-linked proteins that provides biophysical and biochemical cues that are major regulators of cell proliferation, survival, migration, etc. The ECM plays important roles in development and in diverse pathologies including cardio-vascular and musculo-skeletal diseases, fibrosis, and cancer. Thus, characterizing the composition of ECMs of normal and diseased tissues could lead to the identification of novel prognostic and diagnostic biomarkers and potential novel therapeutic targets. However, the very nature of ECM proteins (large in size, cross-linked and covalently bound, heavily glycosylated) has rendered biochemical analyses of ECMs challenging. To overcome this challenge, we developed a method to enrich ECMs from fresh or frozen tissues and tumors that takes advantage of the insolubility of ECM proteins. We describe here in detail the decellularization procedure that consists of sequential incubations in buffers of different pH and salt and detergent concentrations and that results in 1) the extraction of intracellular (cytosolic, nuclear, membrane and cytoskeletal) proteins and 2) the enrichment of ECM proteins. We then describe how to deglycosylate and digest ECM-enriched protein preparations into peptides for subsequent analysis by mass spectrometry.

This protocol describes a procedure for enriching ECM proteins from tissues or tumors and deglycosylating and digesting the ECM-enriched preparations into peptides to analyze their protein composition by mass spectrometry.

질량 분석기 분석을위한 펩티드로 조직과 소화에서 세포 외 기질 단백질의 농축

The extracellular matrix (ECM) is a complex meshwork of cross-linked proteins that provides biophysical and biochemical cues that are major regulators of ...

Simultaneous Isolation of High Quality Cardiomyocytes, Endothelial Cells, and Fibroblasts from an Adult Rat Heart

The rat is an important animal model used in cardiovascular research, and rat cardiac cells are used routinely for in vitro analysis of the molecular mechanisms of cardiovascular disease progression such as cardiac hypertrophy, fibrosis, and atherosclerosis. Although several attempts with variable success have been made to develop immortalized cell lines from the cardiovascular system to understand these cellular mechanisms, primary cells offer a more natural and close to in vivo environment for such studies. Therefore, different laboratories working on a particular cell type have developed protocols to isolate individual types of rat cardiac cells of interest. A protocol that allows the isolation of more than one cell type, however, is missing. Here an optimized protocol is described that allows the isolation of high-quality major cardiac cell types (cardiomyocytes, endothelial cells, and fibroblasts) from a single preparation and enables their use for cellular analyses. This permits the most efficient use of available resources, which may save time and reduce research costs.

Several protocols have been developed and described for the isolation of different cardiac cell types from a rat heart. Here, an optimized protocol is described that allows the isolation of high-quality major cardiac cell types (cardiomyocytes, endothelial cells, and fibroblasts) from a single preparation, reducing the experimental costs.

성인 쥐 심장에서 고품질 Cardiomyocytes, 내피 세포 및 섬유 아세포의 동시 격리

The rat is an important animal model used in cardiovascular research, and rat cardiac cells are used routinely for in vitro analysis of the molecular ...

Isolation and Characterization of Adult Cardiac Fibroblasts and Myofibroblasts

Cardiac fibrosis in response to injury is a physiological response to wound healing. Efforts have been made to study and target fibroblast subtypes that mitigate fibrosis. However, fibroblast research has been hindered due to the lack of universally acceptable fibroblast markers to identify quiescent as well as activated fibroblasts. Fibroblasts are a heterogenous cell population, making them difficult to isolate and characterize. The presented protocol describes three different methods to enrich fibroblasts and myofibroblasts from uninjured and injured mouse hearts. Using a standard and reliable protocol to isolate fibroblasts will enable the study of their roles in homeostasis as well as fibrosis modulation.

Obtaining a pure population of fibroblasts is crucial to studying their role in wound repair and fibrosis. Described here is a detailed method to isolate fibroblasts and myofibroblasts from uninjured and injured mouse hearts followed by characterization of their purity and functionality by immunofluorescence, RTPCR, fluorescence-assisted cell sorting, and collagen gel contraction.

성인 심장 섬유 아세포 및 근섬유 아세포의 격리 및 특성화

Cardiac fibrosis in response to injury is a physiological response to wound healing. Efforts have been made to study and target fibroblast subtypes that ...