Abstract:
:Based on current knowledge on the role of the CX3CL1/CX3CR1 axis in the regulation of microglial activation and on the involvement of activated microglia in damaging oligodendrocytes, we hypothesized that CX3CL1/CX3CR1 axis is associated with the development of ischemic oligodendrocyte and white matter injury. We investigated the effects of CX3CL1, CX3CR1 shRNA, and p38MAPK inhibitor on the apoptosis, proliferation, and myelin proteolipid protein (PLP) expression in oligodendrocytes in co-cultures with BV2 microglia under ischemia. We demonstrated that CX3CL1 markedly increased the numbers of apoptotic oligodendrocytes, decreased PLP expression in oligodendrocytes, and inhibited the increased proliferation of oligodendrocytes induced by ischemia in co-cultures. All these effects of CX3CL1 were suppressed by pre-treatment of BV2 microglia with CX3CR1 shRNA to silence CX3CR1 expression or SB203580 to inhibit p38MAPK pathway. Our findings support that CX3CL1/CX3CR1 axis plays a key role in the development of ischemia-induced oligodendrocyte injury via p38MAPK signaling pathway.
journal_name
Mol Neurobioljournal_title
Molecular neurobiologyauthors
Wu XM,Liu Y,Qian ZM,Luo QQ,Ke Ydoi
10.1007/s12035-015-9339-3subject
Has Abstractpub_date
2016-08-01 00:00:00pages
4010-4018issue
6eissn
0893-7648issn
1559-1182pii
10.1007/s12035-015-9339-3journal_volume
53pub_type
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