Targeting endocytosis to sensitize cancer cells to programmed cell death
Emily T Chan1, Cömert Kural1,2
1Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH 43210, U.S.A.
Abstract:
Evading programmed cell death (PCD) is a hallmark of cancer that allows tumor cells to survive and proliferate unchecked. Endocytosis, the process by which cells internalize extracellular materials, has emerged as a key regulator of cell death pathways in cancer. Many tumor types exhibit dysregulated endocytic dynamics that fuel their metabolic demands, promote resistance to cytotoxic therapies, and facilitate immune evasion. This review examines the roles of endocytosis in apoptotic resistance and immune escape mechanisms utilized by cancer cells. We highlight how inhibiting endocytosis can sensitize malignant cells to therapeutic agents and restore susceptibility to PCD. Strategies to modulate endocytosis for enhanced cancer treatment are discussed, including targeting endocytic regulatory proteins, altering membrane biophysical properties, and inhibiting Rho-associated kinases. While promising, challenges remain regarding the specificity and selectivity of endocytosis-targeting agents. Nonetheless, harnessing endocytic pathways represents an attractive approach to overcome apoptotic resistance and could yield more effective therapies by rendering cancer cells vulnerable to PCD. Understanding the interplay between endocytosis and PCD regulation is crucial for developing novel anticancer strategies that selectively induce tumor cell death.
Insights
Cancer cells evade programmed cell death (PCD) by manipulating endocytosis. Targeting endocytosis can restore cancer cell susceptibility to PCD, offering a novel therapeutic strategy to overcome treatment resistance and enhance cancer therapies.
Area of Science:
- Cancer Biology
- Cellular Mechanisms
- Immunology
Background:
- Cancer cells evade programmed cell death (PCD), a key mechanism for tumor survival and proliferation.
- Endocytosis, the cellular process of material internalization, plays a critical role in regulating cell death pathways within cancer.
Purpose of the Study:
- To review the multifaceted roles of endocytosis in cancer cell resistance to apoptosis and immune evasion.
- To explore therapeutic strategies targeting endocytosis to enhance cancer treatment efficacy by restoring PCD susceptibility.
Main Methods:
- Review of current literature on endocytosis regulation in cancer.
- Analysis of mechanisms by which endocytosis contributes to apoptotic resistance and immune escape.
- Discussion of therapeutic strategies aimed at modulating endocytic pathways.
Main Results:
- Dysregulated endocytic dynamics in tumors support metabolic demands, promote therapy resistance, and facilitate immune evasion.
- Inhibition of endocytosis can sensitize cancer cells to cytotoxic agents and re-sensitize them to PCD.
- Targeting endocytic regulatory proteins, membrane properties, and Rho-associated kinases are potential therapeutic avenues.
Conclusions:
- Modulating endocytic pathways presents a promising strategy to overcome apoptotic resistance in cancer.
- Harnessing endocytosis offers a potential route to develop more effective anticancer therapies by inducing tumor cell death.
- Further research into the interplay between endocytosis and PCD is crucial for novel anticancer drug development.
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