UNCOUPLING PROTEIN UCP1 EXPRESSION DYNAMICS IN ADIPOSE TISSUES OF THE OUTBRED ICR MICE IN POSTNATAL ONTOGENESIS
- Authors: Yakunenkov A.V.1, Elsukova E.I.1, Natochy I.O.1
-
Affiliations:
- Krasnoyarsk state pedagogical university named after V.P. Astafiev
- Issue: Vol 59, No 4 (2023)
- Pages: 255-261
- Section: EXPERIMENTAL ARTICLES
- URL: https://journals.rcsi.science/0044-4529/article/view/136704
- DOI: https://doi.org/10.31857/S0044452923040083
- EDN: https://elibrary.ru/YYFQFT
- ID: 136704
Cite item
Abstract
Uncoupling protein (UCP1) uncouples mitochondrial respiration from ATP synthesis, resulting in heat production in brown and beige adipocytes. The presence of adipocytes with UCP1 expression in fat depots has been shown to promote metabolic health and provide protection against metabolic disorders. It stimulates interest in studying the age dynamics of UCP1 expression. There are few data available, mainly obtained on the C57Bl/6J mouse line predisposed to obesity and cover either early or late ontogenesis. In our study, for the first time, the expression of the UCP1 protein in the adipose tissues of male ICR mice was studied from the weaning to old age. Interscapular brown adipose tissue (BAT), inguinal and perigonadal white adipose tissue (IWAT and GWAT) of 20-day, 1.5, 6, 18 months mice were collected. UCP1 levels were detected by western-blotting. IWAT UCP1 expression decreased by 2 times between 20 days and 1.5 months. No UCP1 bands on blots from mice older than 1.5 months were observed. In gonadal depot UCP1 was detected only in 30% of the samples from 1.5- and 6‑months old mice, and UCP1 expression level was ten times lower in compare to inguinal depot. No statistically significant changes in UCP1 protein expression were detected in brown adipose tissue. The physiological role of UCP1-expressing cells in GWAT is discussed, as well as a possible relationship between the timing and rate of UCP1 expression decrease during the growth and maturation of reproductive function with the activation of lipogenesis in inguinal adipose tissue.
About the authors
A. V. Yakunenkov
Krasnoyarsk state pedagogical university named after V.P. Astafiev
Author for correspondence.
Email: avy0905@yandex.ru
Russia, Krasnoyarsk
E. I. Elsukova
Krasnoyarsk state pedagogical university named after V.P. Astafiev
Email: avy0905@yandex.ru
Russia, Krasnoyarsk
I. O. Natochy
Krasnoyarsk state pedagogical university named after V.P. Astafiev
Email: avy0905@yandex.ru
Russia, Krasnoyarsk
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