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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...
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...
Lysosomal Hydrolases01:22

Lysosomal Hydrolases

Lysosomes are the site for the degradation of macromolecules and biological polymers released during membrane trafficking events such as secretory, endocytic, autophagic, and phagocytic pathways. The membrane-enclosed area of the lysosome, called the lumen, contains hydrolytic enzymes active in an acidic environment. These acid hydrolases are functional at a pH between 4.5 and 5 and are involved in cellular processes such as cell signaling, energy metabolism, restoration of the plasma membrane,...
The Proteasome01:13

The Proteasome

Eukaryotic cells can degrade proteins through several pathways. One of the most important among these is the ubiquitin-proteasome pathway. It helps the cell eliminate the misfolded, damaged, or unwarranted cytoplasmic proteins in a highly specific manner.
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. This involves participation of a series of enzymes including— E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3 (ubiquitin...

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Related Experiment Video

Updated: Jun 10, 2026

Exploring the Regulation of Lipid Droplet Catabolism through Lipophagy
07:20

Exploring the Regulation of Lipid Droplet Catabolism through Lipophagy

Published on: January 31, 2025

Autophagy in disease.

Dalibor Mijaljica, Mark Prescott, Rodney J Devenish

    Methods in Molecular Biology (Clifton, N.J.)
    |August 12, 2010
    PubMed
    Summary
    This summary is machine-generated.

    Autophagy is a vital cellular process for removing damaged components and pathogens, crucial for maintaining cell health and responding to stress. This fundamental mechanism plays a role in various diseases, infections, and the aging process.

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    Assessing Autophagic Flux by Measuring LC3, p62, and LAMP1 Co-localization Using Multispectral Imaging Flow Cytometry
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    Assessing Autophagic Flux by Measuring LC3, p62, and LAMP1 Co-localization Using Multispectral Imaging Flow Cytometry

    Published on: July 21, 2017

    In Situ Immunofluorescent Staining of Autophagy in Muscle Stem Cells
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    In Situ Immunofluorescent Staining of Autophagy in Muscle Stem Cells

    Published on: June 12, 2017

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    Exploring the Regulation of Lipid Droplet Catabolism through Lipophagy
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    Published on: January 31, 2025

    Assessing Autophagic Flux by Measuring LC3, p62, and LAMP1 Co-localization Using Multispectral Imaging Flow Cytometry
    11:39

    Assessing Autophagic Flux by Measuring LC3, p62, and LAMP1 Co-localization Using Multispectral Imaging Flow Cytometry

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    In Situ Immunofluorescent Staining of Autophagy in Muscle Stem Cells
    08:35

    In Situ Immunofluorescent Staining of Autophagy in Muscle Stem Cells

    Published on: June 12, 2017

    Area of Science:

    • Cell Biology
    • Molecular Biology
    • Pathology

    Background:

    • Autophagy is a fundamental cellular process responsible for degrading cytoplasmic components.
    • It acts as a quality control mechanism, removing damaged organelles, misfolded proteins, and pathogens.
    • Cellular stress and environmental changes trigger autophagy activation.

    Purpose of the Study:

    • To elucidate the role of autophagy in cellular quality control.
    • To understand the implications of autophagy in disease pathogenesis and response.
    • To highlight the involvement of autophagy in aging and infectious diseases.

    Main Methods:

    • Literature review on autophagy mechanisms.
    • Analysis of studies linking autophagy to cellular homeostasis.
    • Examination of autophagy's role in various disease models.

    Main Results:

    • Autophagy delivers cytoplasmic constituents to lysosomes for degradation.
    • It is essential for maintaining cellular homeostasis under stress.
    • Dysregulation of autophagy is linked to diverse pathologies.

    Conclusions:

    • Autophagy is a critical cellular process for maintaining health.
    • Its involvement spans pathogenesis, disease response, infection, and aging.
    • Further research into autophagy holds therapeutic potential.