Related Experiment Video
Updated: Dec 5, 2025
07:20
Exploring the Regulation of Lipid Droplet Catabolism through Lipophagy
Published on: January 31, 2025
924
Autophagy and liver cancer
Xiaojuan Chao1, Hui Qian1, Shaogui Wang1
1Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS, USA.
Clinical and Molecular Hepatology
|October 15, 2020
Summary
Autophagy, a cellular recycling process, is crucial for liver health. Impaired autophagy contributes to liver diseases and cancer, paradoxically inhibiting early tumors but promoting later-stage malignancy.
Area of Science:
- Cellular Biology
- Hepatology
- Oncology
Background:
- Autophagy is a fundamental catabolic process essential for cellular homeostasis.
- Dysfunctional autophagy is implicated in the pathogenesis of diverse liver diseases, including viral hepatitis, alcohol-associated liver diseases (AALD), non-alcoholic fatty liver diseases (NAFLD), and liver cancer.
- Emerging evidence suggests autophagy plays a complex, dual role in liver cancer development.
Purpose of the Study:
- To review the impact of hepatic viral infection, alcohol consumption, and diet-induced fatty liver diseases on hepatic autophagy.
- To elucidate how impaired autophagy contributes to liver tumorigenesis.
- To discuss the paradoxical role of autophagy in promoting the malignancy and progression of established liver cancer.
Main Methods:
- Literature review of current research on autophagy in liver diseases and cancer.
- Synthesis of findings regarding the molecular mechanisms of autophagy impairment in liver conditions.
- Analysis of studies investigating the dual role of autophagy in liver cancer progression.
Main Results:
- Hepatic viral infections, alcohol consumption, and fatty liver diseases impair hepatic autophagy.
- Impaired autophagy promotes liver tumorigenesis.
- Autophagy is paradoxically required for the progression and malignancy of existing liver tumors.
Conclusions:
- Understanding the intricate mechanisms of autophagy in liver cancer is vital.
- Targeting autophagy pathways may offer novel therapeutic strategies for liver cancer prevention and treatment.
- Further research into the dual role of autophagy can lead to improved clinical outcomes for liver cancer patients.
More Related Videos
Related Concept Videos
01:27Autophagy
5.5K
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,...
5.5K
01:36Delivery Pathways to the Lysosome
8.5K
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...
8.5K
01:18Autophagic Cell Death
4.0K
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...
4.0K
01:24Liver Regeneration
4.0K
The liver is an important organ in vertebrates that plays an essential role in metabolism. It is also responsible for storing and redistributing nutrients such as carbohydrates, fats, and vitamins in the body. Additionally, the liver releases bile salts which are critical for digesting food and eliminating toxic metabolites from the body.
Cells of Liver
The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are...
Cells of Liver
The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are...
4.0K
03:03mTOR Signaling and Cancer Progression
4.4K
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
4.4K
02:53Adaptive Mechanisms in Cancer Cells
6.6K
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
6.6K