High-mobility group box 1 is dispensable for autophagy, mitochondrial quality control, and organ function in vivo.
High-mobility group box 1 is dispensable for autophagy, mitochondrial quality control, and organ function in vivo.
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DOI:
10.1016/j.cmet.2014.01.014
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发表时间:
2014-03-04
期刊:
影响因子:
29
通讯作者:
Schwabe RF
中科院分区:
文献类型:
--
作者:
Huebener P;Gwak GY;Pradere JP;Quinzii CM;Friedman R;Lin CS;Trent CM;Mederacke I;Zhao E;Dapito DH;Lin Y;Goldberg IJ;Czaja MJ;Schwabe RF
In vitro studies have demonstrated a critical role for high mobility group box 1 (HMGB1) in autophagy and the autophagic clearance of dysfunctional mitochondria, resulting in severe mitochondrial fragmentation and profound disturbances of mitochondrial respiration in HMGB1-deficient cells. Here, we investigated the effects of HMGB1 deficiency on autophagy and mitochondrial function in vivo, using conditional Hmgb1 ablation in the liver and heart. Unexpectedly, deletion of Hmgb1 in hepatocytes or cardiomyocytes, two cell types with abundant mitochondria, did not alter mitochondrial structure or function, organ function or long-term survival. Moreover, hepatic autophagy and mitophagy occurred normally in the absence of Hmgb1, and absence of Hmgb1 did not significantly affect baseline and glucocorticoid-induced hepatic gene expression. Collectively, our findings suggest that HMGB1 is dispensable for autophagy, mitochondrial quality control, the regulation of gene expression and organ function in the adult organism.
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影响因子:
30.8
作者:
Calogero, S;Grassi, F;Bianchi, ME
通讯作者:
Bianchi, ME
影响因子:
11.1
作者:
Müller, S;Ronfani, L;Bianchi, ME
通讯作者:
Bianchi, ME
影响因子:
3.3
作者:
Mizushima, N;Yamamoto, A;Ohsumi, Y
通讯作者:
Ohsumi, Y
DOI:
10.1083/jcb.200412022
发表时间:
2005-05-09
期刊:
The Journal of cell biology
影响因子:
--
作者:
Komatsu M;Waguri S;Ueno T;Iwata J;Murata S;Tanida I;Ezaki J;Mizushima N;Ohsumi Y;Uchiyama Y;Kominami E;Tanaka K;Chiba T
通讯作者:
Chiba T
影响因子:
64.8
作者:
Singh, Rajat;Kaushik, Susmita;Wang, Yongjun;Xiang, Youqing;Novak, Inna;Komatsu, Masaaki;Tanaka, Keiji;Cuervo, Ana Maria;Czaja, Mark J.
通讯作者:
Czaja, Mark J.