Pentamidine reverses the splicing defects associated with myotonic dystrophy

Pentamidine reverses the splicing defects associated with myotonic dystrophy.

Myotonic dystrophy (DM) is a genetic disorder caused by the expression (as RNA) of expanded CTG or CCTG repeats. The alternative splicing factor MBNL1 is sequestered to the expanded RNA repeats, resulting in missplicing of a subset of pre-mRNAs linked to symptoms found in DM patients. Current data suggest that if MBNL1 is released from sequestration, disease symptoms may be alleviated. We ident...

Muscleblind-Like 1 Knockout Mice Reveal Novel Splicing Defects in the Myotonic Dystrophy Brain

Myotonic dystrophy type 1 (DM1) is a multi-systemic disorder caused by a CTG trinucleotide repeat expansion (CTG(exp)) in the DMPK gene. In skeletal muscle, nuclear sequestration of the alternative splicing factor muscleblind-like 1 (MBNL1) explains the majority of the alternative splicing defects observed in the HSA(LR) transgenic mouse model which expresses a pathogenic range CTG(exp). In the...

THE REGULATION OF ALTERNATIVE SPLICING ASSOCIATED WITH MYOTONIC DYSTROPHY by MICHAEL BRYAN WARP A DISSERTATION

Induction and Reversal of Myotonic Dystrophy Type 1 Pre-mRNA Splicing Defects by Small Molecules

The ability to control pre-mRNA splicing with small molecules could facilitate the development of therapeutics or cell-based circuits that control gene function. Myotonic dystrophy type 1 is caused by the dysregulation of alternative pre-mRNA splicing due to sequestration of muscleblind-like 1 protein (MBNL1) by expanded, non-coding r(CUG) repeats (r(CUG)(exp)). Here we report two small molecul...

Myotonic dystrophy

An unquiet life. Memoirs of a physician and cardiologist. This book is of unusual interest. It is not a history of cardiology in Belfast in the last forty years, though that is touched on in some of its aspects. It is the self-revelation of the remarkable man and physician who revolutionised the practice of cardiology in Belfast, in Ulster, and ultimately the world. He may not have meant it, bu...