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Asymmetric Cell Division and Tumor Heterogeneity
Zizhu Li1,2,3, Ying Yi Zhang4, Haomiao Zhang5
1State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
Frontiers in Cell and Developmental Biology
|July 21, 2022
Summary
Asymmetric cell division (ACD) generates diverse cells and maintains stem cells. Dysregulated ACD in cancer stem cells (CSCs) drives tumor heterogeneity, complicating cancer treatment.
Area of Science:
- Cell Biology
- Cancer Research
- Developmental Biology
Background:
- Asymmetric cell division (ACD) is crucial for cell diversity and stem cell maintenance.
- The cancer stem cell (CSC) theory posits that CSCs contribute to tumor heterogeneity through altered self-renewal and ACD.
- Tumor heterogeneity, driven by CSCs, leads to aggressive, drug-resistant, or dormant cancer cells, complicating patient outcomes.
Purpose of the Study:
- To review the regulatory mechanisms of ACD in tumor cells.
- To explore the biological significance of ACD in promoting tumor heterogeneity.
- To discuss the role of ACD in early tumorigenesis and cancer progression.
Main Methods:
- Literature review of regulatory mechanisms in ACD.
- Analysis of biological significance of ACD in tumor progression.
- Discussion of ACD's role in cancer stem cell theory.
Main Results:
- ACD is a key driver of intra-tumoral heterogeneity.
- Dysregulated ACD in CSCs contributes to diverse cancer cell phenotypes.
- ACD influences tumor aggressiveness, metastasis, and drug resistance.
Conclusions:
- Understanding ACD mechanisms in cancer is vital for addressing tumor heterogeneity.
- Targeting ACD pathways may offer novel therapeutic strategies against cancer.
- Dissecting the ACD-cancer relationship can lead to improved cancer treatment approaches.
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