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Aging and Pulmonary Fibrosis.

Moisés Selman1, Ivette Buendía-Roldán1, Annie Pardo2

  • 1Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, SSA, Mexico City, Mexico.

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Summary

Idiopathic pulmonary fibrosis (IPF) is a fatal lung disease linked to aging. This review explores how aging hallmarks like cellular senescence may drive IPF pathogenesis, though research is ongoing.

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Area of Science:

  • Pulmonary Medicine
  • Gerontology
  • Molecular Biology

Background:

  • Idiopathic pulmonary fibrosis (IPF) is a progressive, fatal lung disease with unknown causes.
  • It likely arises from genetic, environmental (e.g., smoking), and epigenetic factors.
  • Aging is the strongest risk factor for IPF, but the underlying mechanisms remain unclear.

Purpose of the Study:

  • To review the molecular and cellular hallmarks of aging.
  • To explore their potential involvement in the pathogenesis of IPF.
  • To highlight the limited and non-definitive current research findings.

Main Methods:

  • Literature review of aging hallmarks.
  • Analysis of proposed links between aging mechanisms and IPF.
  • Synthesis of existing studies on IPF and aging.

Main Results:

  • Nine hallmarks of aging are identified: genomic instability, telomere attrition, epigenetic alterations, loss of proteostasis, deregulated nutrient sensing, mitochondrial dysfunction, cellular senescence, stem cell exhaustion, and altered intercellular communication.
  • These aging hallmarks are implicated in IPF pathogenesis.
  • Current studies are limited and findings are not definitive.

Conclusions:

  • Aging hallmarks represent potential drivers of IPF.
  • Further research is needed to elucidate the precise mechanisms linking aging to IPF.
  • Understanding these links could offer new therapeutic targets for IPF.