國家衛生研究院 NHRI:Item 3990099045/13953
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    题名: Deformation of the nucleus by TGF beta 1 via the remodeling of nuclear envelope and histone isoforms
    其它题名: Deformation of the nucleus by TGFβ1 via the remodeling of nuclear envelope and histone isoforms
    作者: Chi, YH;Wang, WP;Hung, MC;Liou, GG;Wang, JY;Chao, PHG
    贡献者: Institute of Biotechnology and Pharmaceutical Research
    摘要: The cause of nuclear shape abnormalities which are often seen in pre-neoplastic and malignant tissues is not clear. In this study we report that deformation of the nucleus can be induced by TGF beta 1 stimulation in several cell lines including Huh7. In our results, the upregulated histone H3.3 expression downstream of SMAD signaling contributed to TGF beta 1-induced nuclear deformation, a process of which requires incorporation of the nuclear envelope (NE) proteins lamin B1 and SUN1. During this process, the NE constitutively ruptured and reformed. Contrast to lamin B1 which was relatively stationary around the nucleus, the upregulated lamin A was highly mobile, clustering at the nuclear periphery and reintegrating into the nucleoplasm. The chromatin regions that lost NE coverage formed a supra-nucleosomal structure characterized by elevated histone H3K27me3 and histone H1, the formation of which depended on the presence of lamin A. These results provide evidence that shape of the nucleus can be modulated through TGF beta 1-induced compositional changes in the chromatin and nuclear lamina.
    日期: 2022-01-04
    關聯: Epigenetics and Chromatin. 2022 Jan 04;15:Article number 1.
    Link to: http://dx.doi.org/10.1186/s13072-021-00434-3
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1756-8935&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000738629600001
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85122285182
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