Overexpression of LYRM1 induces mitochondrial impairment in 3T3-L1 adipocytes

被引：17

作者：

Cao, Xin-Guo ^{[1
]}

Kou, Chun-Zhao ^{[2
]}

Zhao, Ya-Ping ^{[2
]}

Gao, Chun-Lin ^{[2
]}

Zhu, Chun ^{[1
]}

Zhang, Chun-Mei ^{[1
]}

Ji, Chen-Bo ^{[2
]}

Qin, Da-Ni ^{[1
]}

Zhang, Min ^{[1
]}

Guo, Xi-Rong ^{[2
]}

机构：

[1] Nanjing Med Univ, Nanjing Maternal & Child Hlth Hosp, Nanjing 210004, Peoples R China

[2] Nanjing Med Univ, Inst Pediat, Nanjing 210029, Peoples R China

来源：

MOLECULAR GENETICS AND METABOLISM | 2010年 / 101卷 / 04期

基金：

中国国家自然科学基金;

关键词：

LYRM1; 3T3-L1; adipocyte; Insulin resistance; Mitochondrial dysfunction; INSULIN-RESISTANCE; SKELETAL-MUSCLE; ADIPOSE-TISSUE; GLUCOSE-UPTAKE; DYSFUNCTION; MOLECULES; OBESITY; NUMBER; GENES; CELL;

D O I：

10.1016/j.ymgme.2010.08.010

中图分类号：

R5 [内科学];

学科分类号：

100201 [内科学];

摘要：

Homo sapiens LYR motif containing 1 (LYRM1) is a recently discovered gene involved in adipose tissue homeostasis and obesity-associated insulin resistance. The exact mechanism by which LYRM1 induces insulin resistance has not yet been fully elucidated. In this study, we demonstrated that the overexpression of LYRM1 in 3T3-L1 adipocytes resulted in reduced insulin-stimulated glucose uptake, an abnormal mitochondrial morphology, and a decrease in intracellular ATP synthesis and mitochondrial membrane potential. In addition, LYRM1 overexpression led to excessive production of intracellular of reactive oxygen species. Collectively, our results indicated that the overexpression of LYRM1 caused mitochondrial dysfunction in adipocytes, which might be responsible for the development of LYRM1-induced insulin resistance. (C) 2010 Elsevier Inc. All rights reserved.

引用

页码：395 / 399

页数：5

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