DNA Damage and the Aging Epigenome

Siametis, Athanasios; Niotis, George; Garinis, George A.

doi:10.1016/j.jid.2020.10.006

Cited by 8 publications

(2 citation statements)

References 122 publications

(142 reference statements)

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“…Endogenous DNA damage is deemed a major marker of genomic instability, especially DNA double-strand breaks. 27 DNA damage activates the DNA damage response and cell cycle checkpoint pathways, such as the p53-p21 and p16INK4a-pRb pathways. Thus, the cell cycle is blocked to prevent the transmission of damaged genetic information to offspring cells.…”

Section: Genomic Instabilitymentioning

confidence: 99%

Aging and aging-related diseases: from molecular mechanisms to interventions and treatments

Guo

Huang

Dou

et al. 2022

Sig Transduct Target Ther

180

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Aging is a gradual and irreversible pathophysiological process. It presents with declines in tissue and cell functions and significant increases in the risks of various aging-related diseases, including neurodegenerative diseases, cardiovascular diseases, metabolic diseases, musculoskeletal diseases, and immune system diseases. Although the development of modern medicine has promoted human health and greatly extended life expectancy, with the aging of society, a variety of chronic diseases have gradually become the most important causes of disability and death in elderly individuals. Current research on aging focuses on elucidating how various endogenous and exogenous stresses (such as genomic instability, telomere dysfunction, epigenetic alterations, loss of proteostasis, compromise of autophagy, mitochondrial dysfunction, cellular senescence, stem cell exhaustion, altered intercellular communication, deregulated nutrient sensing) participate in the regulation of aging. Furthermore, thorough research on the pathogenesis of aging to identify interventions that promote health and longevity (such as caloric restriction, microbiota transplantation, and nutritional intervention) and clinical treatment methods for aging-related diseases (depletion of senescent cells, stem cell therapy, antioxidative and anti-inflammatory treatments, and hormone replacement therapy) could decrease the incidence and development of aging-related diseases and in turn promote healthy aging and longevity.

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Section: Genomic Instabilitymentioning

confidence: 99%

Aging and aging-related diseases: from molecular mechanisms to interventions and treatments

Guo

Huang

Dou

et al. 2022

Sig Transduct Target Ther

180

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“…When UV radiation breaks the balance of DNA repair, it will arouse cell apoptosis, skin aging, wrinkles, and even cancer. In addition, DNA damage-driven epigenetic change is also a reason for skin aging [ 66 ].…”

Section: Mechanisms Of Skin Photoagingmentioning

confidence: 99%

Boosting the Photoaged Skin: The Potential Role of Dietary Components

et al. 2021

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Skin photoaging is mainly induced by ultraviolet (UV) irradiation and its manifestations include dry skin, coarse wrinkle, irregular pigmentation, and loss of skin elasticity. Dietary supplementation of nutraceuticals with therapeutic and preventive effects against skin photoaging has recently received increasing attention. This article aims to review the research progress in the cellular and molecular mechanisms of UV-induced skin photoaging. Subsequently, the beneficial effects of dietary components on skin photoaging are discussed. The photoaging process and the underlying mechanisms are complex. Matrix metalloproteinases, transforming growth factors, skin adipose tissue, inflammation, oxidative stress, nuclear and mitochondrial DNA, telomeres, microRNA, advanced glycation end products, the hypothalamic–pituitary–adrenal axis, and transient receptor potential cation channel V are key regulators that drive the photoaging-associated changes in skin. Meanwhile, mounting evidence from animal models and clinical trials suggests that various food-derived components attenuate the development and symptoms of skin photoaging. The major mechanisms of these dietary components to alleviate skin photoaging include the maintenance of skin moisture and extracellular matrix content, regulation of specific signaling pathways involved in the synthesis and degradation of the extracellular matrix, and antioxidant capacity. Taken together, the ingestion of food-derived functional components could be an attractive strategy to prevent skin photoaging damage.

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