Induction of COX-2-PGE2 synthesis by activation of the MAPK/ERK pathway contributes to neuronal death triggered by TDP-43-depleted microglia.
Induction of COX-2-PGE2 synthesis by activation of the MAPK/ERK pathway contributes to neuronal death triggered by TDP-43-depleted microglia.
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通过激活 MAPK/ERK 通路诱导 COX-2-PGE2 合成有助于 TDP-43 耗尽的小胶质细胞引发的神经元死亡
DOI:
10.1038/cddis.2015.69
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发表时间:
2015-03-26
影响因子:
9
通讯作者:
中科院分区:
文献类型:
--
作者:
Neuroinflammation is a striking hallmark of amyotrophic lateral sclerosis (ALS) and other neurodegenerative disorders. Previous studies have shown the contribution of glial cells such as astrocytes in TDP-43-linked ALS. However, the role of microglia in TDP-43-mediated motor neuron degeneration remains poorly understood. In this study, we show that depletion of TDP-43 in microglia, but not in astrocytes, strikingly upregulates cyclooxygenase-2 (COX-2) expression and prostaglandin E2 (PGE2) production through the activation of MAPK/ERK signaling and initiates neurotoxicity. Moreover, we find that administration of celecoxib, a specific COX-2 inhibitor, greatly diminishes the neurotoxicity triggered by TDP-43-depleted microglia. Taken together, our results reveal a previously unrecognized non-cell-autonomous mechanism in TDP-43-mediated neurodegeneration, identifying COX-2-PGE2 as the molecular events of microglia-but not astrocyte-initiated neurotoxicity and identifying celecoxib as a novel potential therapy for TDP-43-linked ALS and possibly other types of ALS.
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影响因子:
3.5
作者:
Hayashi G;Shen Y;Pedersen TL;Newman JW;Pook M;Cortopassi G
通讯作者:
Cortopassi G
影响因子:
3
作者:
Chanson, Jean-Baptiste;Echaniz-Laguna, Andoni;Kiesmann, Michele
通讯作者:
Kiesmann, Michele
影响因子:
3.5
作者:
Diaper DC;Adachi Y;Lazarou L;Greenstein M;Simoes FA;Di Domenico A;Solomon DA;Lowe S;Alsubaie R;Cheng D;Buckley S;Humphrey DM;Shaw CE;Hirth F
通讯作者:
Hirth F
影响因子:
46.9
作者:
通讯作者:
--
影响因子:
3.5
作者:
Diaper DC;Adachi Y;Sutcliffe B;Humphrey DM;Elliott CJ;Stepto A;Ludlow ZN;Vanden Broeck L;Callaerts P;Dermaut B;Al-Chalabi A;Shaw CE;Robinson IM;Hirth F
通讯作者:
Hirth F