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Related Concept Videos

Autophagy01:27

Autophagy

Autophagy is a self-digesting process by which a cell protects itself from threats both within and outside the cell, ranging from abnormal proteins to invading bacteria. In this process, obsolete components of the cell and invading microbes are degraded by hydrolytic enzymes active in an acidic environment of the lysosomal lumen.
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
Delivery Pathways to the Lysosome01:36

Delivery Pathways to the Lysosome

Eukaryotic cells use different mechanisms to eliminate toxic waste obsolete and worn-out substances. Lysosomes play a pivotal role in this, and hence, these substances are carried to the lysosome from other parts of the cell and extracellular space through different pathways. The most elaborately studied pathways to the lysosome are the endocytic pathways.
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...
Translocation of Proteins into the Mitochondria01:19

Translocation of Proteins into the Mitochondria

Mitochondrial precursors are translocated to the internal subcompartments via independent mechanisms involving distinct protein machineries called translocases.
Sorting of outer membrane proteins:
Mitochondrial outer membrane proteins are of two types: the transmembrane, beta-barrel porins, and the membrane-anchored, alpha-helical proteins. Beta-barrel porin precursors are translocated by the TOM complex and inserted into the outer mitochondrial membrane by the SAM complex. In contrast,...
Autophagic Cell Death01:18

Autophagic Cell Death

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.
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and pro-apoptotic...
Cellular Injury V: Apoptosis and Autophagy01:22

Cellular Injury V: Apoptosis and Autophagy

Cells respond to damage and stress through highly coordinated processes that decide whether they survive or undergo controlled self-destruction. Two major pathways involved in this regulation are apoptosis, a type of programmed cell death, and autophagy, a survival mechanism that helps cells adapt to adverse conditions.ApoptosisApoptosis removes aged or injured cells to maintain tissue balance. During this process, the cell shrinks, chromatin condenses and fragments, and membrane-bound...
Mitochondria01:37

Mitochondria

Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...

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Related Experiment Video

Updated: Jun 5, 2026

Visualizing Mitophagy with Fluorescent Dyes for Mitochondria and Lysosome
07:56

Visualizing Mitophagy with Fluorescent Dyes for Mitochondria and Lysosome

Published on: November 30, 2022

Mitochondria removal by autophagy.

Ke Wang1, Daniel J Klionsky

  • 1Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA.

Autophagy
|January 22, 2011
PubMed
Summary
This summary is machine-generated.

Mitophagy, the selective removal of damaged mitochondria via autophagy, is crucial for cellular health and preventing diseases linked to aging and neurodegeneration. This review details mitophagy mechanisms and their biological significance.

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In Vitro and In Vivo Detection of Mitophagy in Human Cells, C. Elegans, and Mice

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Detection of Mitophagy in Caenorhabditis elegans and Mammalian Cells Using Organelle-Specific Dyes
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Last Updated: Jun 5, 2026

Visualizing Mitophagy with Fluorescent Dyes for Mitochondria and Lysosome
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In Vitro and In Vivo Detection of Mitophagy in Human Cells, C. Elegans, and Mice
08:40

In Vitro and In Vivo Detection of Mitophagy in Human Cells, C. Elegans, and Mice

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Detection of Mitophagy in Caenorhabditis elegans and Mammalian Cells Using Organelle-Specific Dyes
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Detection of Mitophagy in Caenorhabditis elegans and Mammalian Cells Using Organelle-Specific Dyes

Published on: May 19, 2023

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Mitochondrial dysfunction contributes to aging and neurodegenerative diseases.
  • Cellular homeostasis relies on maintaining healthy mitochondria.
  • Macroautophagy, including mitophagy, removes damaged mitochondria.

Purpose of the Study:

  • To review current knowledge on mitophagy.
  • To compare mitophagy with other autophagic pathways.
  • To discuss the biological importance of mitophagy.

Main Methods:

  • Literature review of mitophagy research.
  • Comparative analysis of autophagic pathways.
  • Synthesis of current understanding of mitophagy.

Main Results:

  • Mitophagy is an essential cellular quality control mechanism.
  • Distinct molecular processes differentiate mitophagy from other autophagy types.
  • Mitophagy plays a vital role in cellular homeostasis and disease prevention.

Conclusions:

  • Understanding mitophagy is key to addressing age-related and neurodegenerative diseases.
  • Further research into mitophagy mechanisms can reveal therapeutic targets.
  • Mitophagy is a fundamental process for cellular and organismal health.