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Related Concept Videos

Cellular Injury IV: Necrosis01:16

Cellular Injury IV: Necrosis

Necrosis is a form of irreversible cell death caused by severe injury such as ischemia, toxins, or trauma. Unlike programmed cell death, it is an uncontrolled, pathological process that typically provokes inflammation in surrounding tissues.Pathophysiologic ChangesNecrosis begins when cells sustain critical damage, leading to swelling of organelles, particularly mitochondria, and rapid ATP depletion. As energy levels decline, membrane ion pumps fail, leading to calcium influx and eventually,...
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Biological Effects of Radiation02:59

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All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they produce ions...
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Cell death is the irreversible loss of cellular structure and function, representing the final stage of severe injury. It plays a key role in both normal physiology and disease.Types of Cell DeathThe two main types are necrosis and apoptosis, though others like necroptosis and pyroptosis also exist.Necrosis:Necrosis is an unregulated form of cell death caused by severe injury such as trauma, toxins, or ischemia. It is characterized by cell swelling, membrane loss, rupture, and leakage of...
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Related Experiment Video

Updated: May 23, 2026

One-step Protocol for Evaluation of the Mode of Radiation-induced Clonogenic Cell Death by Fluorescence Microscopy
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One-step Protocol for Evaluation of the Mode of Radiation-induced Clonogenic Cell Death by Fluorescence Microscopy

Published on: October 23, 2017

[Radiation-induced cell death].

Takashi Kondo1

  • 1Department of Radiological Sciences, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama.

Nihon Rinsho. Japanese Journal of Clinical Medicine
|April 21, 2012
PubMed
Summary
This summary is machine-generated.

This review details ionizing radiation-induced cell death mechanisms, classifying different cell death modes and exploring radiation-induced apoptosis. It highlights the significance of cell death in radiation biology and cancer therapy.

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Last Updated: May 23, 2026

One-step Protocol for Evaluation of the Mode of Radiation-induced Clonogenic Cell Death by Fluorescence Microscopy
06:47

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Area of Science:

  • Radiation Biology
  • Molecular Biology
  • Cell Death Mechanisms

Background:

  • Understanding cell death induced by ionizing radiation is crucial in radiation biology.
  • Radiation-induced cell death is traditionally classified into interphase and reproductive death.
  • Recent research has identified diverse cell death modalities, including apoptosis, autophagy, mitotic catastrophe, and senescence.

Purpose of the Study:

  • To review and classify the various modes of cell death induced by ionizing radiation.
  • To elucidate the molecular mechanisms underlying radiation-induced apoptosis.
  • To discuss the significance of radiation-induced cell death in normal tissue damage and cancer treatment strategies.

Main Methods:

  • Literature review and synthesis of existing research on radiation-induced cell death.
  • Analysis of molecular pathways involved in radiation-induced apoptosis.
  • Discussion of experimental findings and clinical implications.

Main Results:

  • Ionizing radiation can induce cell death through multiple pathways, including apoptosis, autophagy, mitotic catastrophe, and senescence.
  • Radiation-induced apoptosis involves complex molecular signaling cascades.
  • The type and extent of cell death significantly impact normal tissue responses and therapeutic outcomes in cancer radiation therapy.

Conclusions:

  • Radiation-induced cell death is a multifaceted process with significant implications for radiation biology and medicine.
  • A comprehensive understanding of these mechanisms is essential for optimizing radiation therapy and minimizing side effects.
  • Further research into radiation-induced cell death pathways can lead to improved cancer treatment strategies.