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Exercise Training-Enhanced Lipolytic Potency to Catecholamine Depends on the Time of the Day

Overview
Journal Int J Mol Sci
Publisher MDPI
Date 2020 Sep 24
PMID 32967199
Citations 3
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Abstract

Exercise training is well known to enhance adipocyte lipolysis in response to hormone challenge. However, the existence of a relationship between the timing of exercise training and its effect on adipocyte lipolysis is unknown. To clarify this issue, Wistar rats were run on a treadmill for 9 weeks in either the early part (E-EX) or late part of the active phase (L-EX). L-EX rats exhibited greater isoproterenol-stimulated lipolysis expressed as fold induction over basal lipolysis, with greater protein expression levels of hormone-sensitive lipase (HSL) phosphorylated at Ser 660 compared to E-EX rats. Furthermore, we discovered that Brain and muscle Arnt-like (BMAL)1 protein can associate directly with several protein kinase A (PKA) regulatory units (RIα, RIβ, and RIIβ) of protein kinase, its anchoring protein (AKAP)150, and HSL, and that the association of BMAL1 with the regulatory subunits of PKA, AKAP150, and HSL was greater in L-EX than in E-EX rats. In contrast, comparison between E-EX and their counterpart sedentary control rats showed a greater co-immunoprecipitation only between BMAL1 and ATGL. Thus, both E-EX and L-EX showed an enhanced lipolytic response to isoproterenol, but the mechanisms underlying exercise training-enhanced lipolytic response to isoproterenol were different in each group.

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References
1.
Bukowiecki L, LUPIEN J, Follea N, Paradis A, Richard D, LeBlanc J . Mechanism of enhanced lipolysis in adipose tissue of exercise-trained rats. Am J Physiol. 1980; 239(6):E422-9. DOI: 10.1152/ajpendo.1980.239.6.E422. View

2.
Askew E, Huston R, Plopper C, Hecker A . Adipose tissue cellularity and lipolysis. Response to exercise and cortisol treatment. J Clin Invest. 1975; 56(3):521-9. PMC: 301898. DOI: 10.1172/JCI108120. View

3.
Hashimoto T, Segawa H, Okuno M, Kano H, Hamaguchi H, Haraguchi T . Active involvement of micro-lipid droplets and lipid-droplet-associated proteins in hormone-stimulated lipolysis in adipocytes. J Cell Sci. 2012; 125(Pt 24):6127-36. DOI: 10.1242/jcs.113084. View

4.
Zhai W, Xu C, Ling Y, Liu S, Deng J, Qi Y . Increased lipolysis in adipose tissues is associated with elevation of systemic free fatty acids and insulin resistance in perilipin null mice. Horm Metab Res. 2010; 42(4):247-53. DOI: 10.1055/s-0029-1243599. View

5.
Ezagouri S, Zwighaft Z, Sobel J, Baillieul S, Doutreleau S, Ladeuix B . Physiological and Molecular Dissection of Daily Variance in Exercise Capacity. Cell Metab. 2019; 30(1):78-91.e4. DOI: 10.1016/j.cmet.2019.03.012. View