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Mechanisms of toxic cell injury

J W Snyder1

  • 1Division of Environmental Medicine and Toxicology, Jefferson Medical College of Thomas Jefferson University, Philadelphia, Pennsylvania.

Clinics in Laboratory Medicine
|June 1, 1990
PubMed

Insights

Xenobiotic chemicals cause cell damage through complex molecular interactions. This review covers key mechanisms including covalent binding, oxidative stress, and disruptions in cellular energy and calcium balance.

Area of Science:

  • Biochemistry
  • Toxicology
  • Cell Biology

Background:

  • Xenobiotic agents can induce cellular injury through diverse biochemical pathways.
  • Understanding these mechanisms is crucial for predicting and mitigating toxicity.

Purpose of the Study:

  • To review current concepts in the biochemical mechanisms of xenobiotic-induced cell injury.
  • To highlight key molecular targets and pathways involved in cellular damage.

Main Methods:

  • Literature review of biochemical and toxicological studies.
  • Synthesis of current research on six major areas of xenobiotic action.

Main Results:

  • Xenobiotics interact with molecular targets, leading to cell injury.
  • Key mechanisms include covalent binding, oxidative stress, thiol alterations, phospholipid damage, mitochondrial dysfunction, and calcium homeostasis disruption.

Conclusions:

  • Cellular injury by xenobiotics is a multifactorial process.
  • Targeting these specific biochemical pathways may offer therapeutic strategies.

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