A high-content endogenous GLUT4 trafficking assay reveals new aspects of adipocyte biology.
A high-content endogenous GLUT4 trafficking assay reveals new aspects of adipocyte biology.
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高含量内源性GLUT4运输试验揭示了脂肪细胞生物学的新方面。
DOI:
10.26508/lsa.202201585
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发表时间:
2023-01
影响因子:
4.4
通讯作者:
Burch, James
中科院分区:
文献类型:
--
作者:
Diaz-Vegas, Alexis;Norris, Dougall M.;Jall-Rogg, Sigrid;Cooke, Kristen C.;Conway, Olivia J.;Shun-Shion, Amber S.;Duan, Xiaowen;Potter, Meg;van Gerwen, Julian;Baird, Harry J. M.;Humphrey, Sean J.;James, David E.;Fazakerley, Daniel J.;Burch, James
The authors describe a high-throughput method for measuring endogenous GLUT4 and transferrin receptor translocation in adipocytes. They reveal that this method has advantages over studying GLUT4 trafficking using overexpressed GLUT4 reporters, which are commonly used in the field. Insulin-induced GLUT4 translocation to the plasma membrane in muscle and adipocytes is crucial for whole-body glucose homeostasis. Currently, GLUT4 trafficking assays rely on overexpression of tagged GLUT4. Here we describe a high-content imaging platform for studying endogenous GLUT4 translocation in intact adipocytes. This method enables high fidelity analysis of GLUT4 responses to specific perturbations, multiplexing of other trafficking proteins and other features including lipid droplet morphology. Using this multiplexed approach we showed that Vps45 and Rab14 are selective regulators of GLUT4, but Trarg1, Stx6, Stx16, Tbc1d4 and Rab10 knockdown affected both GLUT4 and TfR translocation. Thus, GLUT4 and TfR translocation machinery likely have some overlap upon insulin-stimulation. In addition, we identified Kif13A, a Rab10 binding molecular motor, as a novel regulator of GLUT4 traffic. Finally, comparison of endogenous to overexpressed GLUT4 highlights that the endogenous GLUT4 methodology has an enhanced sensitivity to genetic perturbations and emphasises the advantage of studying endogenous protein trafficking for drug discovery and genetic analysis of insulin action in relevant cell types.
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DOI:
10.1074/jbc.m115.657361
发表时间:
2015-09-25
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Fazakerley DJ;Naghiloo S;Chaudhuri R;Koumanov F;Burchfield JG;Thomas KC;Krycer JR;Prior MJ;Parker BL;Murrow BA;Stöckli J;Meoli CC;Holman GD;James DE
通讯作者:
James DE
DOI:
10.1083/jcb.201111091
发表时间:
2012-08-20
期刊:
The Journal of cell biology
影响因子:
--
作者:
Chen Y;Wang Y;Zhang J;Deng Y;Jiang L;Song E;Wu XS;Hammer JA;Xu T;Lippincott-Schwartz J
通讯作者:
Lippincott-Schwartz J
影响因子:
4.1
作者:
Brewer, Paul Duffield;Habtemichael, Estifanos N.;Mastick, Cynthia Corley
通讯作者:
Mastick, Cynthia Corley
影响因子:
8.1
作者:
Beaton N;Rudigier C;Moest H;Müller S;Mrosek N;Röder E;Rudofsky G;Rülicke T;Ukropec J;Ukropcova B;Augustin R;Neubauer H;Wolfrum C
通讯作者:
Wolfrum C
DOI:
10.1111/j.2517-6161.1995.tb02031.x
发表时间:
1995-01-01
影响因子:
5.8
作者:
BENJAMINI, Y;HOCHBERG, Y
通讯作者:
HOCHBERG, Y