Oligodendrocytes depend on MCL-1 to prevent spontaneous apoptosis and white matter degeneration.
Oligodendrocytes depend on MCL-1 to prevent spontaneous apoptosis and white matter degeneration.
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DOI:
10.1038/s41419-021-04422-z
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发表时间:
2021-12-06
影响因子:
9
通讯作者:
Gershon TR
中科院分区:
文献类型:
--
作者:
Cleveland AH;Romero-Morales A;Azcona LA;Herrero M;Nikolova VD;Moy S;Elroy-Stein O;Gama V;Gershon TR
Neurologic disorders often disproportionately affect specific brain regions, and different apoptotic mechanisms may contribute to white matter pathology in leukodystrophies or gray matter pathology in poliodystrophies. We previously showed that neural progenitors that generate cerebellar gray matter depend on the anti-apoptotic protein BCL-xL. Conditional deletion of Bcl-xL in these progenitors produces spontaneous apoptosis and cerebellar hypoplasia, while similar conditional deletion of Mcl-1 produces no phenotype. Here we show that, in contrast, postnatal oligodendrocytes depend on MCL-1. We found that brain-wide Mcl-1 deletion caused apoptosis specifically in mature oligodendrocytes while sparing astrocytes and oligodendrocyte precursors, resulting in impaired myelination and progressive white matter degeneration. Disabling apoptosis through co-deletion of Bax or Bak rescued white matter degeneration, implicating the intrinsic apoptotic pathway in Mcl-1-dependence. Bax and Bak co-deletions rescued different aspects of the Mcl-1-deleted phenotype, demonstrating their discrete roles in white matter stability. MCL-1 protein abundance was reduced in eif2b5-mutant mouse model of the leukodystrophy vanishing white matter disease (VWMD), suggesting the potential for MCL-1 deficiency to contribute to clinical neurologic disease. Our data show that oligodendrocytes require MCL-1 to suppress apoptosis, implicate MCL-1 deficiency in white matter pathology, and suggest apoptosis inhibition as a leukodystrophy therapy.
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影响因子:
64.8
作者:
Elitt MS;Barbar L;Shick HE;Powers BE;Maeno-Hikichi Y;Madhavan M;Allan KC;Nawash BS;Gevorgyan AS;Hung S;Nevin ZS;Olsen HE;Hitomi M;Schlatzer DM;Zhao HT;Swayze A;LePage DF;Jiang W;Conlon RA;Rigo F;Tesar PJ
通讯作者:
Tesar PJ
影响因子:
25
作者:
Glasgow, Stacey M.;Zhu, Wenyi;Stolt, C. Claus;Huang, Teng-Wei;Chen, Fuyi;LoTurco, Joseph J.;Neul, Jeffrey L.;Wegner, Michael;Mohila, Carrie;Deneen, Benjamin
通讯作者:
Deneen, Benjamin
DOI:
10.1006/bbrc.1996.1112
发表时间:
1996-07-25
影响因子:
3.1
作者:
Imai, Y;Ibata, I;Kohsaka, S
通讯作者:
Kohsaka, S
影响因子:
2.9
作者:
Cheh, Michelle A.;Millonig, James H.;Wagner, George C.
通讯作者:
Wagner, George C.
影响因子:
6.2
作者:
Kuang, Yi;Liu, Qian;Li, Hedong
通讯作者:
Li, Hedong