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Multiple Regulatory Mechanisms of Post-Translational Modifications and Therapeutic Potential of Mitotic Catastrophe
Qing-Yue Zhang1, Xia Chen1, Shi-Kun Li1
1Department of Anus and Intestine Surgery, The First Hospital of China Medical University, Shenyang 110001, China.
Abstract:
Mitotic catastrophe refers to a complicated mechanism of cell death characterized by failure to complete the processes of mitosis correctly due to aberrant chromosome segregation and abnormal tubulin polymerization. Post-translational modifications (PTMs) play a crucial role in the functional diversity of the proteome by mediating the covalent attachment of functional groups to proteins, which regulates the proteolytic cleavage of subunits, facilitating the degradation of entire proteins. Recent studies suggest that PTMs of key proteins are closely implicated in the occurrence, regulation and potential therapeutic targets of mitotic catastrophe. Here, we summarize how multiple PTMs, including phosphorylation, ubiquitination, acetylation, methylation and other types of PTMs, regulate mitotic catastrophe. In addition, potential therapeutic approaches targeting mitotic catastrophe were also discussed. It is anticipated that the inducement of mitotic catastrophe can serve as a promising new therapeutic approach for various diseases in the future.
Insights
Mitotic catastrophe, a cell death mechanism, is regulated by post-translational modifications (PTMs). Targeting these PTMs offers a promising therapeutic strategy for various diseases.
Area of Science:
- Cell Biology
- Molecular Biology
- Biochemistry
Background:
- Mitotic catastrophe is a cell death pathway triggered by errors in mitosis, such as incorrect chromosome segregation and abnormal tubulin polymerization.
- Post-translational modifications (PTMs) are critical for protein function and cellular regulation, influencing protein stability and degradation.
- Emerging evidence links PTMs of key proteins to the regulation and progression of mitotic catastrophe.
Purpose of the Study:
- To summarize the current understanding of how various PTMs regulate mitotic catastrophe.
- To explore potential therapeutic strategies targeting mitotic catastrophe.
- To highlight the significance of PTMs in the context of mitotic catastrophe for future research and clinical applications.
Main Methods:
- Literature review and synthesis of recent studies on PTMs and mitotic catastrophe.
- Analysis of the roles of specific PTMs (phosphorylation, ubiquitination, acetylation, methylation) in mitotic processes.
- Discussion of therapeutic implications and future directions.
Main Results:
- Multiple PTMs, including phosphorylation, ubiquitination, acetylation, and methylation, are shown to intricately regulate mitotic catastrophe.
- These modifications impact key proteins involved in cell cycle control and chromosome segregation.
- The modulation of these PTMs presents viable therapeutic targets.
Conclusions:
- PTMs are central regulators of mitotic catastrophe, influencing its occurrence and progression.
- Targeting PTMs involved in mitotic catastrophe holds significant therapeutic potential for diseases.
- Inducing mitotic catastrophe via PTM manipulation may represent a novel treatment strategy.
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