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Original Article
- Diabetes, Obesity and Metabolism
- Expression of LONP1 Is High in Visceral Adipose Tissue in Obesity, and Is Associated with Glucose and Lipid Metabolism
- Ju Hee Lee, Saet-Byel Jung, Seong Eun Lee, Ji Eun Kim, Jung Tae Kim, Yea Eun Kang, Seul Gi Kang, Hyon-Seung Yi, Young Bok Ko, Ki Hwan Lee, Bon Jeong Ku, Minho Shong, Hyun Jin Kim
- Endocrinol Metab. 2021;36(3):661-671. Published online June 22, 2021
- DOI: https://doi.org/10.3803/EnM.2021.1023
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- 151 Download
- 7 Web of Science
- 6 Crossref
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Abstract
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Supplementary Material
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ePub - Background
The nature and role of the mitochondrial stress response in adipose tissue in relation to obesity are not yet known. To determine whether the mitochondrial unfolded protein response (UPRmt) in adipose tissue is associated with obesity in humans and rodents.
Methods
Visceral adipose tissue (VAT) was obtained from 48 normoglycemic women who underwent surgery. Expression levels of mRNA and proteins were measured for mitochondrial chaperones, intrinsic proteases, and components of electron-transport chains. Furthermore, we systematically analyzed metabolic phenotypes with a large panel of isogenic BXD inbred mouse strains and Genotype-Tissue Expression (GTEx) data.
Results
In VAT, expression of mitochondrial chaperones and intrinsic proteases localized in inner and outer mitochondrial membranes was not associated with body mass index (BMI), except for the Lon protease homolog, mitochondrial, and the corresponding gene LONP1, which showed high-level expression in the VAT of overweight or obese individuals. Expression of LONP1 in VAT positively correlated with BMI. Analysis of the GTEx database revealed that elevation of LONP1 expression is associated with enhancement of genes involved in glucose and lipid metabolism in VAT. Mice with higher Lonp1 expression in adipose tissue had better systemic glucose metabolism than mice with lower Lonp1 expression.
Conclusion
Expression of mitochondrial LONP1, which is involved in the mitochondrial quality control stress response, was elevated in the VAT of obese individuals. In a bioinformatics analysis, high LONP1 expression in VAT was associated with enhanced glucose and lipid metabolism. -
Citations
Citations to this article as recorded by
- LONP1 ameliorates liver injury and improves gluconeogenesis dysfunction in acute-on-chronic liver failure
Muchen Wu, Jing Wu, Kai Liu, Minjie Jiang, Fang Xie, Xuehong Yin, Jushan Wu, Qinghua Meng
Chinese Medical Journal.2024; 137(2): 190. CrossRef - Mitochondrial quality control proteases and their modulation for cancer therapy
Jiangnan Zhang, Wenliang Qiao, Youfu Luo
Medicinal Research Reviews.2023; 43(2): 399. CrossRef - Effects of Obesity and Calorie Restriction on Cancer Development
Ekaterina Sergeeva, Tatiana Ruksha, Yulia Fefelova
International Journal of Molecular Sciences.2023; 24(11): 9601. CrossRef - Mitochondrial Dysfunction Associated with mtDNA in Metabolic Syndrome and Obesity
Natalia Todosenko, Olga Khaziakhmatova, Vladimir Malashchenko, Kristina Yurova, Maria Bograya, Maria Beletskaya, Maria Vulf, Natalia Gazatova, Larisa Litvinova
International Journal of Molecular Sciences.2023; 24(15): 12012. CrossRef - Down‐regulation of Lon protease 1 lysine crotonylation aggravates mitochondrial dysfunction in polycystic ovary syndrome
Yuan Xie, Shuwen Chen, Zaixin Guo, Ying Tian, Xinyu Hong, Penghui Feng, Qiu Xie, Qi Yu
MedComm.2023;[Epub] CrossRef - The mitochondrial unfolded protein response: A multitasking giant in the fight against human diseases
Zixin Zhou, Yumei Fan, Ruikai Zong, Ke Tan
Ageing Research Reviews.2022; 81: 101702. CrossRef
- LONP1 ameliorates liver injury and improves gluconeogenesis dysfunction in acute-on-chronic liver failure
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