Kidney-Related Function of Mitochondrial Protein Mitoregulin.
Olga A AverinaOleg A PermyakovMariia A EmelianovaEkaterina A GusevaOlga O GrigoryevaMaxim L LovatAnna E EgorovaAndrei V GrinchenkoVadim V KumeikoMaria V MareyVasily N ManskikhOlga A DontsovaMikhail Yu VysokikhPetr V SergievPublished in: International journal of molecular sciences (2023)
A small protein, Mitoregulin (Mtln), localizes in mitochondria and contributes to oxidative phosphorylation and fatty acid metabolism. Mtln knockout mice develop obesity on a high-fat diet, demonstrating elevated cardiolipin damage and suboptimal creatine kinase oligomerization in muscle tissue. Kidneys heavily depend on the oxidative phosphorylation in mitochondria. Here we report kidney-related phenotypes in aged Mtln knockout mice. Similar to Mtln knockout mice muscle mitochondria, those of the kidney demonstrate a decreased respiratory complex I activity and excessive cardiolipin damage. Aged male mice carrying Mtln knockout demonstrated an increased frequency of renal proximal tubules' degeneration. At the same time, a decreased glomerular filtration rate has been more frequently detected in aged female mice devoid of Mtln. An amount of Mtln partner protein, Cyb5r3, is drastically decreased in the kidneys of Mtln knockout mice.
Keyphrases
- high fat diet
- insulin resistance
- oxidative stress
- cell death
- skeletal muscle
- protein protein
- fatty acid
- metabolic syndrome
- adipose tissue
- weight gain
- protein kinase
- high fat diet induced
- type diabetes
- reactive oxygen species
- endoplasmic reticulum
- small molecule
- physical activity
- hepatitis c virus
- drug induced
- men who have sex with men
- antiretroviral therapy