Maquat, Lynne Archives • Fragile X Research

Inhibiting Nonsense – Mediated mRNA Decay: A Potential Treatment Approach for Fragile X

FRAXA Research Foundation 2021 Grants • Current Research Grants • Kurosaki, Tatsuaki • Maquat, Lynne • Treatment Targets • University of Rochester September 30, 2021October 1, 2021mRNAs

All cells have a kind of housecleaning service which sweeps away genetic errors. This is called nonsense-mediated mRNA decay (NMD). With a previous FRAXA grant, this team discovered runaway NMD in cells of Fragile X patients. It’s not yet known how this impacts people with Fragile X. With this grant, Dr. Maquat and Dr. Kurosaki will test drugs which can bring NMD back to normal levels.

Beneath the Surface of Fragile X Syndrome: Study Sheds Light on What’s Happening in Nerve Cells

University of Rochester Medical Center Kurosaki, Tatsuaki • Maquat, Lynne • Research Grant Results • Research Updates • University of Rochester February 3, 2021February 17, 2021cancer, drug repurposing, mRNAs, NIH, Roche

This FRAXA-funded project has turned up some surprising results. At first, it might seem Kurosaki and Maquat have found yet another cellular process which is malfunctioning in Fragile X. But this finding is intimately related to previous findings of abnormal protein synthesis and misregulated transcription in Fragile X. FMRP (the protein lacking in Fragile X syndrome) is involved in chaperoning messenger RNAs within cells to active sites, and in controlling their translation into many different proteins. Some of these proteins are transcription factors, which feed back to the nucleus to control gene expression.

Repurposing Drugs to Dampen Hyperactive Nonsense-Mediated Decay in Fragile X Syndrome

FRAXA Research Foundation 2015 Grants • 2016 Grants • Disease Mechanisms • Drug Repurposing • Kurosaki, Tatsuaki • Maquat, Lynne • Research Grant Results • Treatment Targets • University of Rochester September 8, 2016February 11, 2021Boston Bruins Foundation, mRNAs, NIH, Roche

With a $90,000 grant from the FRAXA Research Foundation, Dr. Lynne Maquat and Dr. Tatsuaki Kurosaki will investigate nonsense-mediated mRNA decay (NMD) in Fragile X. NMD is a “housekeeping” process that cells use to prevent faulty proteins from being made. But there is too much of it in Fragile X syndrome. There are already available drugs that suppress NMD – including caffeine.