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Belgian Endocrine Society 2018

BES 2018

tRNAGln hypomethylation and fragmentation in patient iPSC-derived β-like cells mediates apoptosis in TRMT10A diabetes

ea0057001 | tRNAGln hypomethylation and fragmentation in patient iPSC-derived β-like cells mediates apoptosis in TRMT10A diabetes | BES2018

tRNAGln hypomethylation and fragmentation in patient iPSC-derived β-like cells mediates apoptosis in TRMT10A diabetes

Cristina Cosentino , Sanna Toivonen , Stephane Demine , Andrea Schiavo , Nathalie Pachera , Decio L Eizirik , Miriam Cnop , Mariana Igoillo-Esteve

Background and aim: Loss-of-function mutations in TRMT10A, a transfer RNA (tRNA) methyltransferase, cause early onset diabetes and microcephaly. tRNAs play a crucial role in cellular homeostasis and post-transcriptional modifications modulate tRNA function and fragmentation. tRNA-derived halves (tiRNAs, 29-50 nt) and fragments (tRFs, 14-30 nt) are a new class of functional small noncoding RNAs, involved in cellular stress responses. Here we set out to investigate the ...