hnRNP L is essential for myogenic differentiation and modulates myotonic dystrophy pathologies.
hnRNP L is essential for myogenic differentiation and modulates myotonic dystrophy pathologies.
复制标题
异质核糖核蛋白L对成肌分化至关重要,并调节强直性肌营养不良的病理过程。
DOI:
10.1002/mus.27216
复制
发表时间:
2021-06
期刊:
影响因子:
3.4
通讯作者:
Draper I
中科院分区:
文献类型:
--
作者:
Alexander MS;Hightower RM;Reid AL;Bennett AH;Iyer L;Slonim DK;Saha M;Kawahara G;Kunkel LM;Kopin AS;Gupta VA;Kang PB;Draper I
RNA binding proteins (RBPs) play an important role in skeletal muscle development and disease by regulating RNA splicing. In myotonic dystrophy type 1 (DM1), the RBP MBNL1 (Muscleblind-like) is sequestered by toxic CUG repeats, leading to mis-splicing of MBNL1 targets. Mounting evidence from the literature has implicated other factors in the pathogenesis of DM1. Using human myoblast cell lines and zebrafish, we identified hnRNP L as an essential protein for myofiber survival and demonstrated that hnRNP L interacts with MBNL1 in vitro. A complementary in silico analysis revealed that both splicing factors share a subset of RNA targets in muscle. Using DM1 patient myoblast cell lines we observed the formation of abnormal hnRNP L nuclear foci within and outside the expanded CUG repeats, further suggesting a role for this factor in DM1 pathology. We showed that the antiviral and antitumorigenic isoprenoid compound ascochlorin increased MBNL1 and hnRNP L expression levels. Drug treatment of DM1 muscle cells with ascochlorin partially rescued mis-splicing of established early biomarkers of DM1 and improved the defective myotube formation displayed by DM1 muscle cells. Together, these studies reveal that hnRNP L modulated DM1 pathologies, and is a potential therapeutic target.
登录
查看更多内容
影响因子:
3.4
作者:
Alexander MS;Hightower RM;Reid AL;Bennett AH;Iyer L;Slonim DK;Saha M;Kawahara G;Kunkel LM;Kopin AS;Gupta VA;Kang PB;Draper I
通讯作者:
Draper I
影响因子:
3.7
作者:
Filocamo M;Baldo C;Goldwurm S;Renieri A;Angelini C;Moggio M;Mora M;Merla G;Politano L;Garavaglia B;Casareto L;Bricarelli FD;Telethon Network of Genetic Biobanks Staff
通讯作者:
Telethon Network of Genetic Biobanks Staff
影响因子:
3.7
作者:
Baldo C;Casareto L;Renieri A;Merla G;Garavaglia B;Goldwurm S;Pegoraro E;Moggio M;Mora M;Politano L;Sangiorgi L;Mazzotti R;Viotti V;Meloni I;Pellico MT;Barzaghi C;Wang CM;Monaco L;Filocamo M
通讯作者:
Filocamo M
影响因子:
14.5
作者:
Bassez, Guillaume;Audureau, Etienne;Peschanski, Marc
通讯作者:
Peschanski, Marc
影响因子:
3.5
作者:
Chamberlain, Christopher M.;Ranum, Laura P. W.
通讯作者:
Ranum, Laura P. W.