Related Experiment Video
Updated: Jan 9, 2026
Exploring the Regulation of Lipid Droplet Catabolism through Lipophagy
Published on: January 31, 2025
Attack cancer: Through autophagic modulations as suppressor or promoter
Pratishtha Gupta1, Shama Parveen1, Saurabh Kumar2
1Department of Zoology, Molecular and Human Genetics Laboratory, University of Lucknow, Lucknow 226007, Uttar Pradesh, India.
Abstract:
Organelle integrity and maintenance of protein homeostasis and purpose is essential for fundamental equilibrium and survivability. Autophagy is the primary process which regulates the distribution of different cell loads to lysosomes for destruction and reuse. Extensive research illustrates the protective functions of autophagy against various diseases. Though in cancer, noticeably contrasting functions of autophagy have been evaluated in the prohibition of preliminary tumor evolution vs the continuance and, anabolic and catabolic variations of well-established and invasive tumors. Autophagy possesses numerous roles in tumor microenvironment (TME) establishment and associated immune cells function which is addressed in recent studies. Autophagic machinery which is employed in different autophagy-related pathways contributes to metastatic diseases and are distinct from classical autophagy. Therapeutic strategies based on the inhibition or induction of autophagy and related processes has helped in the designing of efficient anticancer drugs. According to the review, we evaluate and decipher the various purposes of autophagy and its association with autophagy mechanisms in course of tumor development, invasion and progression. We summarize the latest findings involving the role of these activities including tumor cells and TME and define further breakthrough in therapy aiming at autophagic activities in cancer.
Insights
Autophagy, a cellular recycling process, plays dual roles in cancer, initially preventing tumors but later aiding established cancers. Understanding autophagy mechanisms is key to developing new cancer therapies.
Area of Science:
- Cell Biology
- Oncology
- Molecular Biology
Background:
- Organelle integrity and protein homeostasis are vital for cell survival.
- Autophagy is the main cellular process for degrading and recycling cellular components via lysosomes.
- Autophagy has demonstrated protective effects against various diseases, but its role in cancer is complex.
Purpose of the Study:
- To review and clarify the multifaceted roles of autophagy in tumor development, invasion, and progression.
- To summarize current findings on autophagy's involvement in tumor cells and the tumor microenvironment (TME).
- To identify potential therapeutic breakthroughs targeting autophagic activities in cancer treatment.
Main Methods:
- Literature review and synthesis of existing research on autophagy in cancer.
- Analysis of autophagy's role in different stages of tumor evolution (initiation vs. progression).
- Examination of autophagy's impact on the tumor microenvironment and immune cells.
Main Results:
- Autophagy can inhibit early tumor formation but support the growth and progression of established cancers.
- Autophagic machinery contributes to metastasis through pathways distinct from classical autophagy.
- Autophagy influences the tumor microenvironment and associated immune cell functions.
Conclusions:
- Autophagy's dual role necessitates context-specific therapeutic strategies.
- Targeting autophagy and related pathways offers promising avenues for novel anticancer drug development.
- Further research into autophagy's complex mechanisms in cancer is crucial for advancing therapies.
Related Concept Videos
03:03mTOR Signaling and Cancer Progression
The mTOR pathway or the...
01:27Autophagy
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
01:36Delivery Pathways to the Lysosome
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...
01:18Autophagic Cell Death
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...
01:05Cancer-Critical Genes II: Tumor Suppressor Genes
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
01:12Loss of Tumor Suppressor Gene Functions
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...