ArticleNature communications2026
SNAP-23 mediated vesicular trafficking in oligodendrocytes is necessary to maintain adult myelin integrity in mice.
Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Adult myelin is dynamic and requires continuous support from oligodendrocytes. Inability to sustain myelin health results in demyelination, evident in multiple sclerosis and neurodegenerative diseases. However, the molecular mechanism by which oligodendrocytes recycle and replenish materials to the myelin sheath remains unclear. Here, we investigate whether the SNARE-dependent vesicular trafficking is important for myelin turnover. We conditionally remove SNAP-23, one of the target SNARE proteins, in mature oligodendrocytes of adult mice. Induction of SNAP-23 deletion causes demyelination within 5-10 weeks. Demyelination is associated with an increase in immune cells, including infiltrated T cells, in the brain. Mechanistically, the removal of SNAP-23 in oligodendrocytes impairs vesicle fusion to the myelin and causes the accumulation of myelin proteins within the cells. Taken together, we show that SNAP-23-dependent transport in oligodendrocytes is necessary for adult myelin maintenance, with failure in vesicular transport leading to demyelination and subsequent neuroinflammation.
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