This work was supported by the Alexander von Humboldt Foundation (5090371), the Christine K&uuml;hne Center for Allergy Research and Education (CK-CARE), and the Bayerischen Staatsministerium (to K.D.).

1. SKP Isolation from Primary Fibroblast Cultures
<ol>
 <li>Fibroblast cultures either from cell banks or directly obtained from skin biopsies are maintained in culture in fibroblast growth medium DMEM containing 15% fetal calf serum, 2 mM glutamine, 10 mg/ml penicillin, and 10 mg/ml streptomycin.</li>
</ol>
Human fibroblasts GMO3349C and GMO8398A were obtained from the Coriell Institute for Medical Research (Camden, NJ) and were used in this study.
<ol start="2">
 <li>Cultures from populati...

<ol>
	<li>Jahoda, C. A., Whitehouse, J., Reynolds, A. J., Hole, N. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Hair+follicle+dermal+cells+differentiate+into+adipogenic+and+osteogenic+lineages.">Hair follicle dermal cells differentiate into adipogenic and osteogenic lineages.</a> Exp. Dermatol. 12, 849 (2003).</li><li>Watt, F. M., Celso, L. o., C, V., Silva-Vargas, <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Epidermal+stem+cells:+an+update.">Epidermal stem cells: an update.</a> Curr. Opin. Genet. Dev. 16, 518 (2006).</li><li>Blanpain, C., Horsley, V., Fuchs, E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Epithelial+stem+cells:+turning+over+new+leaves.">Epithelial stem cells: turning over new leaves.</a> Cell. 128, 445 (2007).</li><li>Hunt, D. P., Jahoda, C., Chandran, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Multipotent+skin-derived+precursors:+from+biology+to+clinical+translation.">Multipotent skin-derived precursors: from biology to clinical translation.</a> Vurr. Opin. Biotechnol. 20, 522 (2009).</li><li>Toma, J. G., 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=Isolation+of+multipotent+adult+stem+cells+from+the+dermis+of+mammalian+skin.">Isolation of multipotent adult stem cells from the dermis of mammalian skin.</a> Nat. Cell Biol. 3, 778 (2001).</li><li>Fernandes, K. 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=A+dermal+niche+for+multipotent+adult+skin-derived+precursor+cells.">A dermal niche for multipotent adult skin-derived precursor cells.</a> Nat. Cell Biol. 6, 1082 (2004).</li><li>Wenzel, V., 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=Na&#239;ve+adult+stem+cells+from+patients+with+Hutchinson-Gilford+progeria+syndrome+express+low+levels+of+progerin+in+vivo.">Na&#239;ve adult stem cells from patients with Hutchinson-Gilford progeria syndrome express low levels of progerin in vivo.</a> Bio. Open. 1, (2012).</li><li>Livak, K. J., Schmittgen, T. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Analysis+of+relative+gene+expression+data+using+real-time+quantitative+PCR+and+the+2(-Delta+Delta+C(T))+Method.">Analysis of relative gene expression data using real-time quantitative PCR and the 2(-Delta Delta C(T)) Method.</a> Methods. 25, 402 (2001).</li><li>Biernaskie, J. A., McKenzie, I. A., Toma, J. T., Miller, F. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Isolation+of+skin-derived+precursors+(SKPs)+and+differentiation+and+enrichment+of+their+Schwann+cell+progeny.">Isolation of skin-derived precursors (SKPs) and differentiation and enrichment of their Schwann cell progeny.</a> Nature Protocol. 1, 2803 (2006).</li><li>Toma, J. G., McKenzie, I., Bagli, D., Miller, F. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Isolation+and+characterization+of+multipotent+skin-derived+precursors+from+human+skin.">Isolation and characterization of multipotent skin-derived precursors from human skin.</a> Stem Cells. 23, 727 (2005).</li><li>Fernandes, K. J., 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=Analysis+of+the+neurogenic+potential+of+multipotent+skin-derived+precursors.">Analysis of the neurogenic potential of multipotent skin-derived precursors.</a> Electrophoresis. 201, 32 (2006).</li><li>Hill, l. K. 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=Human+embryonic+stem+cell-derived+vascular+progenitor+cells+capable+of+endothelial+and+smooth+muscle+cell+function.">Human embryonic stem cell-derived vascular progenitor cells capable of endothelial and smooth muscle cell function.</a> Exp. Hematol. 38, 246 (2010).</li></ol>

Using the method described herein, na&iuml;ve dermal stem cells can be isolated from primary dermal fibroblast cultures. Using this approach, we recently reported the isolation and characterization of adult stem cells from fibroblast cultures derived from patients with a rare genetic syndrome, Hutchinson-Gilford progeria syndrome 7. As show herein those precursor cells express stem cell markers are capable of self-renewal and can be directed to differentiate into different cellular lineages including fib...

<table border="1">
	<tbody>
		<tr>
			<td>Name of the reagent</td>
			<td>Company</td>
			<td>Catalogue number</td>
			<td>Comments (optional)</td>
		</tr>
		<tr>
			<td>DMEM high glucose</td>
			<td>Invitrogen</td>
			<td>31966-047</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>DMEM low glucose</td>
			<td>Invitrogen</td>
			<td>21885-108</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>fetal bovine serum</td>
			<td>Invitrogen</td>
			<td>10270-106</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>L-glutamine</td>
			<td>Invitrogen</td>
			<td>25030-024</td>
			<td>Final conc.: 200 mM</td>
		</tr>
		<tr>
			<td>Penicillin/ Streptomycin</td>
			<td>Invitrogen</td>
			<td>15140-122</td>
			<td>Final conc.: 10 mg/ml /10 mg /ml</td>
		</tr>
		<tr>
			<td>trypsin solution (0.25%)</td>
			<td>Invitrogen</td>
			<td>25200-056</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>F-12 Nutrient Mixture (Ham)</td>
			<td>Invitrogen</td>
			<td>21765-029</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>FGF2</td>
			<td>BD Biosciences</td>
			<td>4114-TC-01M</td>
			<td>Final conc.: 40 ng/ml</td>
		</tr>
		<tr>
			<td>EGF</td>
			<td>BD Biosciences</td>
			<td>236-EG-200</td>
			<td>Final conc.: 20 ng/ml</td>
		</tr>
		<tr>
			<td>PDGFBB</td>
			<td>Invitrogen</td>
			<td>PHG0043</td>
			<td>Final conc.: 5 ng/ml</td>
		</tr>
		<tr>
			<td>TGF-b1</td>
			<td>Invitrogen</td>
			<td>PHG9204</td>
			<td>Final conc.: 2.5 ng/ml</td>
		</tr>
		<tr>
			<td>25 cm2 flask</td>
			<td>Omnilab</td>
			<td>FALC353109</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>PBS w/o CaMg</td>
			<td>Invitrogen</td>
			<td>14190-169</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>B27</td>
			<td>Invitrogen</td>
			<td>17504-044</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Methanol</td>
			<td>Roth</td>
			<td>8388.2</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Vectashield mounting medium</td>
			<td>Vector Inc.</td>
			<td>H-1200</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>RNeasy Minikit</td>
			<td>Qiagen, Valencia, CA</td>
			<td>74104</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Omniscript Reverse Transcriptase</td>
			<td>Qiagen</td>
			<td>205113</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>SsoFast EvaGreen Supermix</td>
			<td>BioRad</td>
			<td>172-5201</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Fungizone</td>
			<td>Invitrogen</td>
			<td>15290-018</td>
			<td>Final conc.:1 mg/ml</td>
		</tr>
		<tr>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>Table 2. Specific reagents and equipment.</td>
		</tr>
	</tbody>
</table>

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.

We show that a population of cells that selectively expand to generate SKP spheres under controlled growth condition consisting of EGF and FGF2 are present in primary dermal fibroblast cultures (Figure 1) as we reported recently 7.
Fibroblast cultures from PPDs 15 to 25 that typically correspond to the primary fibroblasts strains available from cell banks were used in this study. Fibroblast cultures submitted to the double treatment consisting of cold tempera...

Watch this Scientific Journal Video about NaÃ¯ve Adult Stem Cells Isolation from Primary Human Fibroblast Cultures at JoVE.com

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.

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 ...

naive-adult-stem-cells-isolation-from-primary-human-fibroblast

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14.0K Views.  Technische Universität München. Riportiamo un metodo per isolare precursori pelle-derivato multipotenti (SKP) cellule naïve da colture primarie di fibroblasti umani. Abbiamo dimostrato che queste SKPs derivati ​​da colture di fibroblasti Share proprietà delle cellule staminali a quelle derivate direttamente da biopsie cutanee umane. Queste cellule esprimono il marcatore cresta neurale, nestin, oltre ai marcatori multipotenti quali OCT4 e Nanog.