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Geroprotective Effect of the Mitochondrial-Targeted Antioxidant SkQBerb in a Model of the Chronological Aging of MB135 Human Myoblasts

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Abstract

Background: The field of gerontology is actively seeking senolytics and senomorphs that can influence the quantity and activity of senescent cells in the body. Previous studies have demonstrated the geroprotective properties of mitochondrial-directed compounds based on plastoquinone and berberine in various in vitro and in vivo models. Thus, it is plausible that SkQBerb, a mitochondrial-targeted compound combining berberine and plastoquinone, may exhibit higher geroprotective potential compared to previously studied compounds. Aim: The aim of this study is to investigate the geroprotective activity of SkQBerb in a chronological aging model using MB135 myoblasts. Experimental: The effect of SkQBerb on various aging characteristics of human MB135 myoblasts is assessed. Histochemical staining for β-galactosidase is performed using a commercially available kit. The levels of proinflammatory cytokines IL-6 and IL-8 are determined using pre-made immunoassay kits. Additionally, Western blotting was employed to evaluate the levels of p21, pRb (Ser807/811), and LC3B proteins. Results: Analysis of the results reveals that SkQBerb, at concentrations ranging from 20–100 nM, effectively suppresses the accumulation of senescent cells in MB135 cells subjected to chronological aging. Furthermore, it significantly reduces the levels of IL-6 and IL-8, which are key factors associated with the secretory phenotype. Conclusion: The findings of this study suggest the potential geroprotective and senomorphic effect of SkQBerb. These results open up possibilities for utilizing this mitochondrial-targeted compound as a geroprotector in future applications.

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Funding

The study was carried out with funds from the Russian Science Foundation grant no. 23-14-00061.

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Authors and Affiliations

  1. Russian Clinical and Research Center for Gerontology, Pirogov Russian National Research Medical University, Moscow, Russia

    M. A. Chelombitko & K. G. Lyamzaev

  2. School of Biology, Moscow State University, Moscow, Russia

    G. V. Morgunova

  3. Faculty of Bioengineering and Bioinformatics, Moscow State University, Moscow, Russia

    N. Yu. Strochkova

Authors
  1. M. A. Chelombitko
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  2. G. V. Morgunova
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  3. N. Yu. Strochkova
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  4. K. G. Lyamzaev
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Contributions

M.A. Chelombitko and K.G. Lyamzaev planned the experiments. M.A. Chelombitko, G.V. Morgunova, N.Yu. Strochkova, and K.G. Lyamzaev carried out experimental work. M.A. Chelombitko, G.V. Morgunova, and K.G. Lyamzaev wrote the paper. All authors discussed the results and commented on the manuscript.

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Correspondence to M. A. Chelombitko.

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Chelombitko, M.A., Morgunova, G.V., Strochkova, N.Y. et al. Geroprotective Effect of the Mitochondrial-Targeted Antioxidant SkQBerb in a Model of the Chronological Aging of MB135 Human Myoblasts. Adv Gerontol 13, 94–98 (2023). https://doi.org/10.1134/S2079057024600149

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  • DOI: https://doi.org/10.1134/S2079057024600149

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