Premyelinating Oligodendrocyte Survival Governs CNS Remyelination

Stockton, M. E., Wentling, M., Mancha Corchado, Y. I., Kucera, A., Karas, S., Seabrook, T. A., Mutschler, C., Osso, L. A., Schuster, K. H., Della Flora Nunes, G., Chavez, A. R., Hughes, E. G.

University of Colorado School of Medicine · biorxiv

Paper

Abstract

Myelinating oligodendrocytes are produced throughout life by the constitutive differentiation of oligodendrocyte precursor cells (OPCs). However, the rate of oligodendrocyte generation changes with age and after a demyelinating injury. Here, we report that variation in premyelinating oligodendrocyte (preOL) survival modulates the rate of oligodendrocyte production. PreOL survival increased to drive the regeneration of oligodendrocytes after demyelination and decreased in middle-aged mice to contribute to age-related decline in oligodendrocyte production. Furthermore, we demonstrate that treatment with a GPR17 antagonist, Myro-02, increases oligodendrocyte replacement by promoting preOL survival after demyelination. Together, our findings demonstrate that increased survival of preOLs governs the regeneration of oligodendrocytes following demyelinating injury and suggest that modulating preOL survival may be an alternative therapeutic avenue to promote oligodendrocyte regeneration.

The following analysis is generated by AI and may contain errors. It is separate from the authors’ abstract and is not peer review.

Research summary

The paper claims that increased survival of premyelinating oligodendrocytes enhances the regeneration of oligodendrocytes after demyelination. This research is relevant as it explores mechanisms that could potentially address age-related decline in oligodendrocyte production, which is linked to neurodegenerative processes associated with aging.

Author of this paper? Send a correction.