A decline in PABPN1 induces progressive muscle weakness in oculopharyngeal muscle dystrophy and in muscle aging

Seyed Yahya Anvar, Yotam Raz, Nisha Verway, Barbara van der Sluijs, Andrea Venema, Jelle J Goeman, John Vissing, Silvère M van der Maarel, Peter A C 't Hoen, Baziel G M van Engelen, Vered Raz

44 Citationer (Scopus)

Abstract

Oculopharyngeal muscular dystrophy (OPMD) is caused by trinucleotide repeat expansion mutations in Poly(A) binding protein 1 (PABPN1). PABPN1 is a regulator of mRNA stability and is ubiquitously expressed. Here we investigated how symptoms in OPMD initiate only at midlife and why a subset of skeletal muscles is predominantly affected. Genome-wide RNA expression profiles from Vastus lateralis muscles human carriers of expanded-PABPN1 at pre-symptomatic and symptomatic stages were compared with healthy controls. Major expression changes were found to be associated with age rather than with expression of expanded-PABPN1, instead transcriptomes of OPMD and elderly muscles were significantly similar (P
OriginalsprogEngelsk
TidsskriftAging
Vol/bind5
Udgave nummer6
Sider (fra-til)412-26
Antal sider15
ISSN1945-4589
StatusUdgivet - jun. 2013

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