Enhanced reprogramming and cardiac differentiation of human keratinocytes derived from plucked hair follicles, using a single excisable lentivirus
| Autor: | Ronit Shtrichman, Igal Germanguz, Atara Novak, Naama Zeevi-Levin, Yael Mandel, Darrell N. Kotton, Bettina Fishman, Joseph Itskovitz-Eldor, Hagit Domev, Hanna Segev, Lili Barad, Gustavo Mostoslavsky, Ofer Binah |
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| Rok vydání: | 2010 |
| Předmět: |
Keratinocytes
Pluripotent Stem Cells Cell type Patch-Clamp Techniques Cell Cell Culture Techniques Biology Regenerative medicine Cell therapy medicine Humans Induced pluripotent stem cell Cells Cultured integumentary system Myocardium Lentivirus Cell Differentiation Heart Cell Biology Anatomy Hair follicle Embryonic stem cell Cell biology medicine.anatomical_structure Reprogramming Hair Follicle Developmental Biology Biotechnology |
| Zdroj: | Cellular reprogramming. 12(6) |
| ISSN: | 2152-4998 |
| Popis: | Induced pluripotent stem cells (iPSCs) represent an ideal cell source for future cell therapy and regenerative medicine. However, most iPSC lines described to date have been isolated from skin fibroblasts or other cell types that require harvesting by surgical intervention. Because it is desirable to avoid such intervention, an alternative cell source that can be readily and noninvasively isolated from patients and efficiently reprogrammed, is required. Here we describe a detailed and reproducible method to derive iPSCs from plucked human hair follicle keratinocytes (HFKTs). HFKTs were isolated from single plucked hair, then expanded and reprogrammed by a single polycistronic excisable lentiviral vector. The reprogrammed HFKTs were found to be very sensitive to human embryonic stem cell (hESC) growth conditions, generating a built-in selection with easily obtainable and very stable iPSCs. All emerging colonies were true iPSCs, with characteristics typical of human embryonic stem cells, differentiated into derivatives of all three germ layers in vitro and in vivo. Spontenaeouly differentiating functional cardiomyocytes (CMs) were successfully derived and characterized from these HFKT-iPSCs. The contracting CMs exhibited well-coordinated intracellular Ca²+ transients and contractions that were readily responsive to β-adrenergic stimulation with isoproterenol. The introduction of Cre-recombinase to HFKT-iPSC clones was able to successfully excise the integrated vector and generate transgene-free HFKT-iPSC clone that could be better differentiated into contracting CMs, thereby revealing the desired cells for modeling human diseases. Thus, HFKTs are easily obtainable, and highly reprogrammed human cell source for all iPSC applications. |
| Databáze: | OpenAIRE |
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