Loss of Selenov predisposes mice to extra fat accumulation and attenuated energy expenditure.
Loss of Selenov predisposes mice to extra fat accumulation and attenuated energy expenditure.
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Selenov的损失使小鼠易于额外的脂肪积累和减弱的能量消耗。
DOI:
10.1016/j.redox.2021.102048
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发表时间:
2021-09
期刊:
影响因子:
11.4
通讯作者:
Lei XG
中科院分区:
文献类型:
--
作者:
Chen LL;Huang JQ;Wu YY;Chen LB;Li SP;Zhang X;Wu S;Ren FZ;Lei XG
Selenoprotein V (SELENOV) is a new and the least conserved member of the selenoprotein family. Herein we generated Selenov knockout (KO) mice to determine its in vivo function. The KO led to 16–19% increases (P < 0.05) in body weight that were largely due to 54% higher (P < 0.05) fat mass accumulation, compared with the wild-type (WT) controls. The extra fat accumulation in the KO mice was mediated by up-regulations of genes and proteins involved in lipogenesis (Acc, Fas, Dgat, and Lpl; up by 40%–1.1-fold) and down-regulations of lipolysis (Atgl, Hsl, Ces1d, and Cpt1a; down by 36–89%) in the adipose tissues. The KO also decreased (P < 0.05) VO2 consumption (14–21%), VCO2 production (14–16%), and energy expenditure (14–23%), compared with the WT controls. SELENOV and O-GlcNAc transferase (OGT) exhibited a novel protein-protein interaction that explained the KO-induced decreases (P < 0.05) of OGT protein (15–29%), activity (33%), and function (O-GlcNAcylation, 10–21%) in the adipose tissues. A potential cascade of SELENOV-OGT-AMP-activated protein kinase might serve as a central mechanism to link the biochemical and molecular responses to the KO. Overall, our data revealed a novel in vivo function and mechanism of SELENOV as a new inhibitor of body fat accumulation, activator of energy expenditure, regulator of O-GlcNAcylation, and therapeutic target of such related disorders. SELENOV knockout elevated body weight and fat mass accumulation in mice. SELENOV knockout stimulated lipogenesis and inhibited lipolysis in adipose tissue. SELENOV knockout attenuated thermogenesis, respiration, and body temperature. SELENOV and O-GlcNAc transferase (OGT) depicted a protein-protein interaction. SELENOV knockout lowered OGT protein, activity, and function in adipose tissue.
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影响因子:
--
作者:
Hawley SA;Boudeau J;Reid JL;Mustard KJ;Udd L;Mäkelä TP;Alessi DR;Hardie DG
通讯作者:
Hardie DG
DOI:
10.1152/ajpregu.00321.2019
发表时间:
2020-05-01
影响因子:
2.8
作者:
Addinsall, Alex Bernard;Wright, Craig Robert;Stupka, Nicole
通讯作者:
Stupka, Nicole
影响因子:
7.1
作者:
Fernandez-Marcos, Pablo J.;Auwerx, Johan
通讯作者:
Auwerx, Johan
影响因子:
4.2
作者:
Chen, Ling-Li;Huang, Jia-Qiang;Lei, Xin Gen
通讯作者:
Lei, Xin Gen
影响因子:
5.3
作者:
Conrad, M;Jakupoglu, C;Brielmeier, M
通讯作者:
Brielmeier, M