Related Experiment Video
Updated: Dec 8, 2025

Exploring the Regulation of Lipid Droplet Catabolism through Lipophagy
Published on: January 31, 2025
The interaction mechanism between autophagy and apoptosis in colon cancer
Qingqiang Xie1, Yuan Liu1, Xuefeng Li2
1The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital; State Key Laboratory of Respiratory Disease, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, PR China.
Abstract:
Autophagy and apoptosis play crucial roles in tumorigenesis. Recent studies have shown that autophagy and apoptosis have a cross-talk relationship in anti-tumor therapy. It is well established that apoptosis is one of the main pathways of tumor cell death. While autophagy can occurs in tumors with opposite function: protective autophagy and lethal autophagy. Protective autophagy can inhibit tumor apoptosis induced by anticancer drugs, while lethal autophagy can induce tumor cell apoptosis in cooperation with anticancer drugs. Hence, autophagy and apoptosis have synergistic and antagonistic effects in tumor. Colorectal cancer is a common malignant tumor with high morbidity and mortality. In recent years, colorectal carcinoma has achieved improved clinical efficacy with drug treatment. Nonetheless, increasing drug-resistance limit the treatment efficacy, highlighting the urgency of exploring the molecular events that drive drug resistance. Researchers have found that autophagy is one of the major factors leading to drug resistance in colon cancer. Therefore, elucidating the interaction between autophagy and apoptosis is helpful to improve the efficacy of anticancer drugs in clinical treatment of colorectal cancer. This review attaches great importance to the relationship between autophagy and apoptosis and related factors in colorectal cancer.
Insights
Autophagy and apoptosis interact in cancer, influencing treatment outcomes. Understanding this relationship is key to overcoming drug resistance in colorectal cancer.
Area of Science:
- Oncology
- Molecular Biology
- Cell Death Pathways
Background:
- Autophagy and apoptosis are critical in tumorigenesis, with complex interactions impacting anti-tumor therapy.
- Apoptosis is a primary mechanism for tumor cell death, while autophagy can be either protective or lethal.
- Colorectal cancer (CRC) presents a significant health burden, and acquired drug resistance limits treatment efficacy.
Purpose of the Study:
- To review the intricate relationship between autophagy and apoptosis in colorectal cancer.
- To elucidate how this interplay influences drug resistance in colon cancer.
- To highlight factors involved in the autophagy-apoptosis axis for improved therapeutic strategies.
Main Methods:
- Literature review focusing on studies investigating autophagy and apoptosis in cancer.
- Analysis of research on the dual role of autophagy (protective vs. lethal).
- Examination of molecular mechanisms underlying drug resistance in colorectal carcinoma.
Main Results:
- Autophagy exhibits dual roles in cancer: protective autophagy can hinder drug-induced apoptosis, while lethal autophagy can promote it.
- Autophagy is identified as a major contributor to drug resistance in colon cancer.
- The synergistic and antagonistic effects of autophagy and apoptosis are crucial in tumor progression and treatment response.
Conclusions:
- Elucidating the autophagy-apoptosis cross-talk is essential for overcoming drug resistance in colorectal cancer.
- Targeting the autophagy-apoptosis pathway holds promise for enhancing the efficacy of anticancer drugs.
- Further research into related factors can lead to improved clinical strategies for colorectal cancer treatment.
Related Concept Videos
Autophagic Cell Death
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...
Autophagy
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
The Intrinsic Apoptotic Pathway
Phagocytosis of Apoptotic Cells
Normal cells contain receptors that prevent them from being recognized...
Apoptosis
Delivery Pathways to the Lysosome
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...

