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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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Progerin expression in humans: Implications for natural ageing.

So-Mi Kang1, Soyoung Park2, Tae-Gyun Woo2

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Summary

Progerin, a protein linked to Hutchinson-Gilford Progeria Syndrome, also appears in normal aging tissues. Its presence contributes to cellular damage and senescence, suggesting it may be a biomarker for aging.

Keywords:
AgeingAgeing theoryBiomarkerProgerinProgerin inhibitor

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Area of Science:

  • Gerontology
  • Molecular Biology
  • Cellular Biology

Background:

  • Progerin, a truncated lamin A isoform, drives Hutchinson-Gilford Progeria Syndrome (HGPS).
  • Low levels of progerin are found in normal aging tissues, including skin, vasculature, and blood cells.

Purpose of the Study:

  • To investigate the role of progerin in natural aging processes.
  • To explore progerin's potential as a biomarker for aging.

Main Methods:

  • Analysis of progerin levels in normal tissues.
  • Assessment of cellular effects associated with progerin accumulation.
  • Review of endogenous regulatory pathways and potential biomarker strategies.

Main Results:

  • Progerin contributes to nuclear deformation, DNA damage, senescence, and other aging hallmarks in normal cells.
  • Endogenous factors like WRN helicase can mitigate progerin's harmful effects.
  • Progerin detection is limited by low abundance and tissue specificity but offers insights into vascular and dermal aging.

Conclusions:

  • Progerin may serve as a mechanistic link between premature and physiological aging.
  • Further validation through ultrasensitive assays and longitudinal studies is needed to establish progerin as a multimodal biomarker.