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Autophagy

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.
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Delivery Pathways to the Lysosome

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 Death

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
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The Central Dogma

The Central Dogma

The central dogma explains the flow of genetic information from DNA nucleotides to the amino acid sequence of proteins.
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Lysosomal Hydrolases

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,...

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Amino Acid Catabolism

Microorganisms rely on proteins as an essential carbon and energy source, particularly in environments with limited polysaccharides or lipids. However, proteins are too large to cross the plasma membrane unaided, necessitating enzymatic degradation. Microbes secrete extracellular proteases and peptidases that hydrolyze proteins into peptides, which can then be transported across the membrane. Once inside the cell, intracellular proteases degrade these peptides into free amino acids, which...

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Related Experiment Video

Updated: Dec 14, 2025

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

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

Published on: July 21, 2017

Autophagy in farm animals: current knowledge and future challenges.

Sophie Tesseraud¹, Pascale Avril², Muriel Bonnet³

¹INRAE, BOA, Université de Tours, F-Nouzilly, France.

|July 21, 2020

Summary

Autophagy, a cellular self-eating process, is crucial for homeostasis and stress resistance. This review explores its understudied role in agricultural species, focusing on livestock production and potential applications for improving animal development and health.

Keywords:

Agriculture autophagy cellular and tissue homeostasis farm animals physiology and animal production

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Related Experiment Videos

Last Updated: Dec 14, 2025

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

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

Published on: July 21, 2017

Analyzing Starvation-Induced Autophagy in the Drosophila melanogaster Larval Fat Body

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Published on: August 4, 2022

Live Cell Imaging of Early Autophagy Events: Omegasomes and Beyond

Live Cell Imaging of Early Autophagy Events: Omegasomes and Beyond

Published on: July 27, 2013

Area of Science:

Cellular Biology
Animal Science
Agricultural Science

Background:

Autophagy is a fundamental cellular process for maintaining homeostasis and responding to various stresses.
Its role in agronomically important species, particularly in livestock production, remains largely unexplored.
Understanding autophagy mechanisms is key to addressing agricultural challenges.

Purpose of the Study:

To describe the core mechanisms of autophagy.
To review current knowledge of autophagy in species of agricultural interest.
To assess the potential of applying autophagy research to enhance livestock development, growth, and health.

Main Methods:

Literature review of autophagy mechanisms and functions.
Focus on physiological roles supporting livestock production.
Assessment of knowledge translation for agricultural applications.

Main Results:

Autophagy plays a significant role in cellular maintenance and stress response.
Limited research exists on autophagy in agriculturally relevant species.
Potential exists to leverage autophagy knowledge for agricultural improvement.

Conclusions:

Autophagy is vital for cellular health and stress management.
Further research into autophagy in livestock is warranted.
Translating autophagy insights can benefit agricultural sustainability and animal welfare.