X-linked genes exhibit miR6891-5p-regulated skewing in Sjögren's syndrome.
X-linked genes exhibit miR6891-5p-regulated skewing in Sjögren's syndrome.
复制标题
DOI:
10.1007/s00109-022-02205-3
复制
发表时间:
2022-09
期刊:
影响因子:
--
通讯作者:
中科院分区:
文献类型:
--
作者:
Many autoimmune diseases exhibit a strikingly increased prevalence in females, with primary Sjögren’s syndrome (pSS) being the most female-predominant example. However, the molecular basis underlying the female-bias in pSS remains elusive. To address this knowledge gap, we performed genome-wide, allele-specific profiling of minor salivary gland-derived mesenchymal stromal cells (MSCs) from pSS patients and control subjects, and detected major differences in the regulation of X-linked genes. In control female MSCs, X-linked genes were expressed from both paternal and maternal X chromosomes with a median paternal ratio of ~ 0.5. However, in pSS female MSCs, X-linked genes exhibited preferential expression from one of the two X chromosomes. Concomitantly, pSS MSCs showed decrease in XIST levels and reorganization of H3K27me3+ foci in the nucleus. Moreover, the HLA-locus-expressed miRNA miR6891-5p was decreased in pSS MSCs. miR6891-5p inhibition in control MSCs caused XIST dysregulation, ectopic silencing, and allelic skewing. Allelic skewing was accompanied by the mislocation of protein products encoded by the skewed genes, which was recapitulated by XIST and miR6891-5p disruption in control MSCs. Our data reveal X skewing as a molecular hallmark of pSS and highlight the importance of restoring X-chromosomal allelic balance for pSS treatment.
登录
查看更多内容
影响因子:
12.3
作者:
Castel SE;Levy-Moonshine A;Mohammadi P;Banks E;Lappalainen T
通讯作者:
Lappalainen T
影响因子:
7.3
作者:
Chitnis N;Clark PM;Kamoun M;Stolle C;Brad Johnson F;Monos DS
通讯作者:
Monos DS
DOI:
10.1038/nri2394
发表时间:
2008-09
期刊:
Nature reviews. Immunology
影响因子:
--
作者:
Fish EN
通讯作者:
Fish EN
影响因子:
2.6
作者:
Gough SC;Simmonds MJ
通讯作者:
Simmonds MJ
影响因子:
4.5
作者:
McCoy SS;Giri J;Das R;Paul PK;Pennati A;Parker M;Liang Y;Galipeau J
通讯作者:
Galipeau J