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Related Concept Videos

The Effect of Aging on Tissues01:19

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Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
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Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
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Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
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The first thing a clinician sees is the skin, so the examination of the skin should be part of any thorough physical examination. Most skin disorders are relatively benign, but a few, including melanomas, can be fatal if untreated. A couple of the more noticeable disorders, albinism and vitiligo, affect the appearance of the skin and its accessory organs.
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Research Progress in Skin Aging and Immunity.

Xin He1,2,3, Xinyu Gao1,3, Weidong Xie1,2,3

  • 1State Key Laboratory of Chemical Oncogenomics, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.

International Journal of Molecular Sciences
|April 13, 2024
PubMed
Summary
This summary is machine-generated.

Skin aging involves structural changes and immune cell aging. Immune dysfunction significantly contributes to skin aging, suggesting immunoregulation as a key treatment strategy.

Keywords:
immune cellsimmune functioninflammatory responseskin aging

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Area of Science:

  • Dermatology
  • Immunology
  • Gerontology

Background:

  • Skin aging is characterized by collagen loss, reduced thickness, dryness, and wrinkles.
  • Multiple theories explain skin aging, including free radical, inflammation, photoaging, and metabolic factors.
  • The skin immune system, comprising various immune cells, is crucial for homeostasis and defense.

Purpose of the Study:

  • To review the intricate relationship between skin aging and the immune system.
  • To explore the characteristics of skin aging and the aging process of skin immune cells.
  • To elucidate the impact of aged immune cells on skin immunity and overall skin aging.

Main Methods:

  • Literature review summarizing current research on skin aging and immunity.
  • Analysis of the composition and function of the skin immune system.
  • Examination of immune cell senescence and its effects on immune function.

Main Results:

  • Skin aging involves structural and functional decline, influenced by intrinsic and extrinsic factors.
  • Skin immune cells undergo senescence with age, exhibiting reduced function and altered signaling.
  • Immune dysfunction is a significant driver of skin aging processes.

Conclusions:

  • Immune cell aging profoundly impacts skin homeostasis and accelerates skin aging.
  • Immunoregulation emerges as a promising therapeutic strategy for preventing and treating skin aging.
  • Targeting immune pathways may offer novel approaches to enhance skin health and resilience.