Regulation of Mutant Huntingtin Mitochondrial Toxicity by Phosphomimetic Mutations within Its N-Terminal Region

Huntington’s disease (HD), a neurodegenerative disease, affects approximately 30,000 people in the United States, with 200,000 more at risk. Mitochondrial dysfunction caused by mutant huntingtin (mHTT) drives early HD pathophysiology. mHTT binds the translocase of the mitochondrial inner membrane (TIM23) complex, inhibiting mitochondrial protein import and altering the mitochondrial proteome. The 17 aa HTT N-terminal sequence… Continue reading Regulation of Mutant Huntingtin Mitochondrial Toxicity by Phosphomimetic Mutations within Its N-Terminal Region

Seeing more in expansion microscopy

In biology, seeing can lead to understanding, and researchers in Edward Boyden’s lab at MIT’s McGovern Institute are committed to bringing life into sharper focus. With a pair of new methods, they are expanding the capabilities of expansion microscopy—a high-resolution imaging technique the group introduced in 2015—so researchers everywhere can see more when they look… Continue reading Seeing more in expansion microscopy

Breakthrough technology enables mRNA delivery across the blood-brain barrier

Scientists at the Icahn School of Medicine at Mount Sinai have developed a lipid nanoparticle system capable of delivering messenger RNA (mRNA) to the brain via intravenous injection, a challenge that has long been limited by the protective nature of the blood-brain barrier. The findings, in mouse models and isolated human brain tissue, were published… Continue reading Breakthrough technology enables mRNA delivery across the blood-brain barrier