Differential stem cell aging kinetics in Hutchinson-Gilford progeria syndrome and Werner syndrome
Protein & Cell
; (12): 333-350, 2018.
Article
Dans En
| WPRIM
| ID: wpr-757991
Responsable en Bibliothèque :
WPRO
ABSTRACT
Hutchinson-Gilford progeria syndrome (HGPS) and Werner syndrome (WS) are two of the best characterized human progeroid syndromes. HGPS is caused by a point mutation in lamin A (LMNA) gene, resulting in the production of a truncated protein product-progerin. WS is caused by mutations in WRN gene, encoding a loss-of-function RecQ DNA helicase. Here, by gene editing we created isogenic human embryonic stem cells (ESCs) with heterozygous (G608G/+) or homozygous (G608G/G608G) LMNA mutation and biallelic WRN knockout, for modeling HGPS and WS pathogenesis, respectively. While ESCs and endothelial cells (ECs) did not present any features of premature senescence, HGPS- and WS-mesenchymal stem cells (MSCs) showed aging-associated phenotypes with different kinetics. WS-MSCs had early-onset mild premature aging phenotypes while HGPS-MSCs exhibited late-onset acute premature aging characterisitcs. Taken together, our study compares and contrasts the distinct pathologies underpinning the two premature aging disorders, and provides reliable stem-cell based models to identify new therapeutic strategies for pathological and physiological aging.
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Physiologie
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Progeria
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Syndrome de Werner
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Vieillissement
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Cinétique
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Helicase
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Lamine A
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Cellules souches mésenchymateuses
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Cellules souches embryonnaires humaines
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Génétique
Limites du sujet:
Humans
langue:
En
Texte intégral:
Protein & Cell
Année:
2018
Type:
Article