The Molecular Nature of Very Small Embryonic-Like Stem Cells in Adult Tissues
International Journal of Stem Cells
; : 55-62, 2014.
Article
Dans En
| WPRIM
| ID: wpr-63301
Responsable en Bibliothèque :
WPRO
ABSTRACT
Pluripotent stem cells (PSCs) have been considered as the most important cells in regenerative medicine as they are able to differentiate into all types of cells in the human body. PSCs have been established from several sources of embryo tissue or by reprogramming of terminally differentiated adult tissue by transduction of so-called Yamanaka factors (Oct4, Sox2, Klf4, and cMyc). Interestingly, accumulating evidence has demonstrated the residence of PSCs in adult tissue and with the ability to differentiate into multiple types of tissue-committed stem cells (TCSCs). We also recently demonstrated that a population of pluripotent Oct4(+) SSEA-1(+)Sca-1(+)Lin-CD45(-) very small embryonic-like stem cells (VSELs) resides in the adult murine bone marrow (BM) and in other murine tissue. These very small (~3-6 microm) cells express pluripotent markers such as Oct4, Nanog, and SSEA-1. VSELs could be specified into several tissue-residing TCSCs in response to tissue/organ injury, and thus suggesting that these cells have a physiological role in the rejuvenation of a pool of TCSCs under steady-state conditions. In this review article, we discuss the molecular nature of the rare population of VSELs which have a crucial role in regulating the pluripotency, proliferation, differentiation, and aging of these cells.
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Rajeunissement
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Cellules souches
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Moelle osseuse
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Vieillissement
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Antigènes CD15
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Corps humain
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Empreinte génomique
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Méthylation de l'ADN
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Cellules souches pluripotentes
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Médecine régénérative
Limites du sujet:
Adult
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Humans
langue:
En
Texte intégral:
International Journal of Stem Cells
Année:
2014
Type:
Article