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Related Concept Videos

Overview of Cell Death01:30

Overview of Cell Death

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Cell death is an essential process where the body gets rid of old or damaged cells. Cell proliferation and death need to be balanced, as an imbalance between the two may lead to cancer or autoimmune diseases.
Cell death was observed in the early 19th century, but there was no experimental evidence to prove it. In 1842, Carl Vogt first discovered cell death in a metamorphic toad; however, it was not termed ‘cell death.’ Scientists discovered different cell death pathways only in the...
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Necrosis01:16

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Autophagic Cell Death01:18

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Christian de Duve discovered “autophagy,” a process in which cellular components are engulfed by membrane-bound organelles called autophagosomes. The autophagosomes then fuse with lysosomes to digest the enclosed contents. Autophagy is generally activated in cells to prevent cell death. However, cell death is triggered when the damage is beyond repair.
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Updated: Nov 21, 2025

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PM2.5-related cell death patterns.

Yunxia Wang1, Yijue Zhong2, Jiping Liao1

  • 1Department of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing, China.

International Journal of Medical Sciences
|January 18, 2021
PubMed
Summary
This summary is machine-generated.

Particulate matter less than 2.5 (PM2.5) pollution causes health issues by inducing various cell death types. Understanding these PM2.5-induced cell death pathways is crucial for treating related diseases.

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Area of Science:

  • Environmental Health
  • Toxicology
  • Cell Biology

Background:

  • Growing concerns about environmental pollution and its health impacts.
  • Particulate matter less than 2.5 (PM2.5) is a significant air pollutant linked to various diseases.
  • Limited understanding of the specific mechanisms by which PM2.5 contributes to disease pathogenesis.

Purpose of the Study:

  • To review and elucidate the diverse mechanisms of cell death induced by PM2.5.
  • To highlight the role of PM2.5-mediated cell death in the development of related diseases.
  • To provide insights into potential therapeutic strategies targeting PM2.5-induced cell death.

Main Methods:

  • Comprehensive literature review of studies investigating PM2.5 and cell death.
  • Analysis of research on various cell death pathways (autophagy, necrosis, apoptosis, pyroptosis, ferroptosis) induced by PM2.5.
  • Synthesis of findings to connect PM2.5 exposure to disease pathogenesis through cell death mechanisms.

Main Results:

  • PM2.5 exposure triggers multiple distinct forms of cell death.
  • These cell death pathways are implicated in the progression of various PM2.5-related health conditions.
  • Specific cell death modalities may offer distinct therapeutic targets.

Conclusions:

  • PM2.5-induced cell death is a critical factor in the pathogenesis of pollution-related diseases.
  • Understanding these diverse cell death mechanisms is essential for developing effective treatments.
  • Further research into targeted interventions for specific cell death pathways is warranted.