Метформин изменяет метаболизм, связанный с митохондрией, и укрепляет функцию человека олигодендроцита.
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Kazakou Nina-Lydia, Bestard-Cuche Nadine, Wagstaff Laura J, Horan Kellie, Seeker Luise, Bøstrand Sunniva, Fetit Rana, Smith Rebecca Sherrard, Pohl Fabio Baldivia, Neumann Bjorn, Keeler Patrick, Franklin Robin J M, Williams Anna
Аннотация
Оригинал публикации
Metformin alters mitochondria-related metabolism and enhances human oligodendrocyte function.
Metformin rejuvenates adult rat oligodendrocyte progenitor cells (OPCs) allowing more efficient differentiation into oligodendrocytes and improved remyelination, and therefore is of interest as a therapeutic in demyelinating diseases such as multiple sclerosis (MS). Here, we test whether metformin has a similar effect in human stem cell derived-OPCs. We assess how well human monoculture, organoid and chimera model culture systems simulate in vivo adult human oligodendrocytes, finding most close resemblance in the chimera model. Metformin increases myelin proteins and/or sheaths in all models even when human cells remain fetal-like. In the chimera model, metformin leads to increased mitochondrial area both in the human transplanted cells and in the mouse axons with associated increase of mitochondrial function/metabolism transcripts. Human oligodendrocytes from MS brain donors treated pre-mortem with metformin also express similar transcripts. Metformin's brain effect is thus not cell-specific, alters metabolism in part through mitochondrial changes and leads to more myelin production. This bodes well for clinical trials testing metformin for neuroprotection.