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Related Concept Videos

Autophagic Cell Death01:18

Autophagic Cell Death

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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.
Autophagy and Apoptosis
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Autophagy01:27

Autophagy

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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,...
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Phagocytosis of Apoptotic Cells01:17

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Cells undergoing apoptosis form apoptotic bodies that must be removed immediately to prevent inflammation, autoimmune diseases, and necrosis. Phagocytosis is carried out by professional phagocytes such as macrophages or  immature dendritic cells. Non-professional phagocytes such as  epithelial cells and fibroblasts also take part in this process; however, they are not as effective as professional phagocytes. 
Normal cells contain receptors that prevent them from being recognized...
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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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Delivery Pathways to the Lysosome01:36

Delivery Pathways to the Lysosome

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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...
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Necrosis01:16

Necrosis

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Necrosis is considered as an “accidental” or unexpected form of cell death that ends in cell lysis. The first noticeable mention of “necrosis” was in 1859 when Rudolf Virchow used this term to describe advanced tissue breakdown in his compilation titled “Cell Pathology”.
Morphological Manifestations of Necrosis
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Related Experiment Video

Updated: Apr 10, 2026

In vitro Quantitative Imaging Assay for Phagocytosis of Dead Neuroblastoma Cells by iPSC-Macrophages
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Autophagic activity in neuronal cell death.

Robert W Button1, Shouqing Luo, David C Rubinsztein

  • 1Peninsula Schools of Medicine and Dentistry, Institute of Translational and Stratified Medicine, University of Plymouth, Research Way, Plymouth, PL6 8BU, UK.

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|June 17, 2015
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Summary

Neurons rely on autophagy for homeostasis and stress survival. This review examines evidence for autophagy-induced neuron death and its role in neurodegeneration, exploring therapeutic strategies.

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Modeling Neuronal Death and Degeneration in Mouse Primary Cerebellar Granule Neurons
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Use of LysoTracker to Detect Programmed Cell Death in Embryos and Differentiating Embryonic Stem Cells
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Modeling Neuronal Death and Degeneration in Mouse Primary Cerebellar Granule Neurons
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Area of Science:

  • Neuroscience
  • Cell Biology
  • Molecular Biology

Background:

  • Neurons, with high energy demands, depend on autophagy for homeostasis and waste removal.
  • Autophagy aids neuronal survival under stress and degrades toxic protein aggregates linked to neurodegeneration.
  • Autophagy is controversially implicated as a mechanism of programmed cell death, particularly in neurons.

Purpose of the Study:

  • To review and assess evidence supporting autophagic cell death in neurons.
  • To explore how autophagy dysregulation contributes to neuron loss in neurodegenerative diseases.
  • To discuss potential therapeutic strategies targeting autophagic cell death pathways.

Main Methods:

  • Literature review and critical assessment of existing research on autophagy and neuronal cell death.
  • Analysis of studies investigating autophagosome accumulation and its consequences in neuronal contexts.
  • Examination of the link between dysregulated autophagy and neurodegenerative pathologies.

Main Results:

  • Evidence suggests that excessive autophagy, indicated by high autophagosome numbers, can lead to neuronal death.
  • Dysregulation of autophagy is a common feature in neurodegenerative diseases, contributing to neuron loss.
  • Specific mechanisms linking autophagy to programmed cell death in neurons are still under investigation.

Conclusions:

  • Neurons may be particularly vulnerable to autophagic cell death due to their high reliance on autophagy.
  • Understanding the dual role of autophagy in neuronal survival and death is crucial for neurodegenerative disease research.
  • Targeting autophagy pathways presents a potential therapeutic avenue for neurodegenerative disorders.