Differential stem cell aging kinetics in Hutchinson-Gilford progeria syndrome and Werner syndrome
Zeming Wu , Weiqi Zhang , Moshi Song , Wei Wang , Gang Wei , Wei Li , Jinghui Lei , Yu Huang , Yanmei Sang , Piu Chan , Chang Chen , Jing Jing , Keiichiro Suzuki , Juan Carlos Izpisua Belmonte , Guang-Hui Liu
Protein Cell ›› 2018, Vol. 9 ›› Issue (4) : 333 -350.
Differential stem cell aging kinetics in Hutchinson-Gilford progeria syndrome and Werner syndrome
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) LMNAmutation 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.
WRN / lamin / HGPS / Werner syndrome / stem cell / aging
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The Author(s) 2018. This article is an open access publication
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