Accumulation of the inner nuclear envelope protein Sun1 is pathogenic in progeric and dystrophic laminopathies.
Accumulation of the inner nuclear envelope protein Sun1 is pathogenic in progeric and dystrophic laminopathies.
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DOI:
10.1016/j.cell.2012.01.059
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发表时间:
2012-04-27
期刊:
影响因子:
64.5
通讯作者:
Jeang KT
中科院分区:
文献类型:
--
作者:
Chen CY;Chi YH;Mutalif RA;Starost MF;Myers TG;Anderson SA;Stewart CL;Jeang KT
Human LMNA gene mutations result in laminopathies that include Emery-Dreifuss Muscular Dystrophy (AD-EDMD) and Hutchinson-Gilford Progeria, the premature aging syndrome (HGPS). The Lmna null (Lmna−/−) and progeroid LmnaΔ9 mutant mice are models for AD-EDMD and HGPS respectively. Both animals develop severe tissue pathologies with abbreviated life spans. Like HGPS cells, Lmna−/− and LmnaΔ9 fibroblasts have typically misshapen nuclei. Unexpectedly, Lmna−/− or LmnaΔ9 mice that are also deficient for the inner nuclear membrane protein Sun1 show markedly reduced tissue pathologies and enhanced longevity. Concordantly, reduction of SUN1 over-accumulation in LMNA mutant fibroblasts and in HGPS cells corrected nuclear defects and cellular senescence. Collectively, these findings implicate Sun1 protein accumulation as a common pathogenic event in Lmna−/−, LmnaΔ9, and HGPS disorders.
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DOI:
10.1074/jbc.m109.071910
发表时间:
2010-01-29
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Haque F;Mazzeo D;Patel JT;Smallwood DT;Ellis JA;Shanahan CM;Shackleton S
通讯作者:
Shackleton S
影响因子:
2.8
作者:
Chaouch, M;Allal, Y;Grid, D
通讯作者:
Grid, D
影响因子:
17.1
作者:
Cao, Kan;Graziotto, John J.;Collins, Francis S.
通讯作者:
Collins, Francis S.
影响因子:
11.8
作者:
Hernandez, Lidia;Roux, Kyle J.;Stewart, Colin L.
通讯作者:
Stewart, Colin L.
影响因子:
168.9
作者:
Chen, LS;Lee, L;Oshima, J
通讯作者:
Oshima, J