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Erschienen in: Current Diabetes Reports 11/2022

14.10.2022 | Obesity (K Gadde and P Singh, Section Editors)

Cellular Senescence in Obesity and Associated Complications: a New Therapeutic Target

verfasst von: Akilavalli Narasimhan, Rafael R. Flores, Christina D. Camell, David A. Bernlohr, Paul D. Robbins, Laura J. Niedernhofer

Erschienen in: Current Diabetes Reports | Ausgabe 11/2022

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Abstract

Purpose of Review

Obesity has increased worldwide recently and represents a major global health challenge. This review focuses on the obesity-associated cellular senescence in various organs and the role of these senescent cells (SnCs) in driving complications associated with obesity. Also, the ability to target SnCs pharmacologically with drugs termed senotherapeutics as a therapy for these complications is discussed.

Recent Findings

Several studies have shown a positive correlation between obesity and SnC burden in organs such as adipose tissue, liver, and pancreatic-β-cells. These SnCs produce several secretory factors which affect other cells and tissues in a paracrine manner resulting in organ dysfunction. The accumulation of SnCs in adipocytes affects their lipid storage and impairs adipogenesis. The inflammatory senescence-associated secretory phenotype (SASP) of SnCs downregulates the antioxidant capacity and mitochondrial function in tissues. Senescent hepatocytes cannot oxidize fatty acids, which leads to lipid deposition and senescence in β-cells decrease function. These and other adverse effects of SnCs contribute to insulin resistance and type-2 diabetes. The reduction in the SnC burden genetically or pharmacologically improves the complications associated with obesity.

Summary

The accumulation of SnCs with age and disease accelerates aging. Obesity is a key driver of SnC accumulation, and the complications associated with obesity can be controlled by reducing the SnC burden. Thus, senotherapeutic drugs have the potential to be an effective therapeutic option.
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Metadaten
Titel
Cellular Senescence in Obesity and Associated Complications: a New Therapeutic Target
verfasst von
Akilavalli Narasimhan
Rafael R. Flores
Christina D. Camell
David A. Bernlohr
Paul D. Robbins
Laura J. Niedernhofer
Publikationsdatum
14.10.2022
Verlag
Springer US
Erschienen in
Current Diabetes Reports / Ausgabe 11/2022
Print ISSN: 1534-4827
Elektronische ISSN: 1539-0829
DOI
https://doi.org/10.1007/s11892-022-01493-w

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