Related Experiment Video
Updated: Oct 2, 2025
07:20
Exploring the Regulation of Lipid Droplet Catabolism through Lipophagy
Published on: January 31, 2025
692
Autophagy: The "Pac-Man" within Us-Ally or Adversary?
Anitha K Pandarathodiyil1, Srinivas P Vijayan2, Anand Ramanathan3
1Faculty of Dentistry, SEGi University, Petaling Jaya, Selangor, Malaysia,
The Journal of Contemporary Dental Practice
|February 24, 2022
Summary
Autophagy is a crucial cellular process where the body removes damaged cells. Its proper function is essential for maintaining overall cellular health and preventing disease.
Area of Science:
- Cell Biology
- Molecular Biology
- Biochemistry
Background:
- Autophagy, meaning "self-devouring," is a fundamental cellular process for maintaining homeostasis.
- First described in 1963, it involves the degradation of damaged cellular components.
- Defective autophagy is implicated in the pathogenesis of numerous human diseases.
Purpose of the Study:
- To highlight the critical role of autophagy in cellular health.
- To underscore the link between autophagy and disease.
- To emphasize the importance of understanding this self-devouring process.
Main Methods:
- Literature review on autophagy mechanisms.
- Analysis of studies linking autophagy dysfunction to diseases.
- Synthesis of current understanding of cellular homeostasis.
Main Results:
- Autophagy is vital for clearing damaged cells and organelles.
- Dysfunctional autophagy contributes to various pathological conditions.
- Cellular health is intrinsically dependent on efficient autophagic activity.
Conclusions:
- Autophagy is indispensable for maintaining cellular integrity and function.
- Further research into autophagy is crucial for therapeutic development.
- Understanding autophagy provides insights into disease prevention and treatment.
Related Concept Videos
01:27Autophagy
4.7K
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,...
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
4.7K
01:36Delivery Pathways to the Lysosome
8.0K
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...
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...
8.0K
01:18Autophagic Cell Death
3.6K
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...
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...
3.6K
01:13The Proteasome
1.2K
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...
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...
1.2K
01:30Overview of Cell Death
7.9K
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...
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...
7.9K
01:17Phagocytosis of Apoptotic Cells
4.0K
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...
Normal cells contain receptors that prevent them from being recognized...
4.0K