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DRP1: At the Crossroads of Dysregulated Mitochondrial Dynamics and Altered Cell Signaling in Cancer Cells
Ankita Adhikary1, Agradeep Mukherjee1, Riddhi Banerjee1
1Organelle Biology and Cellular Ageing Lab, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
Abstract:
In the past decade, compelling evidence has accumulated that highlights the role of various subcellular structures in human disease conditions. Dysregulation of these structures greatly impacts cellular function and, thereby, disease conditions. One such organelle extensively studied for its role in several human diseases, especially cancer, is the mitochondrion. DRP1 is a GTPase that is considered the master regulator of mitochondrial fission and thereby also affects the proper functioning of the organelle. Altered signaling pathways are a distinguished characteristic of cancer cells. In this review, we aim to summarize our current understanding of the interesting crosstalk between the mitochondrial structure-function maintained by DRP1 and the signaling pathways that are affected in cancer cells. We highlight the structural aspects of DRP1, its regulation by various modifications, and the association of the protein with various cellular pathways altered in cancer. A better understanding of this association may help in identifying potential pharmacological targets for novel therapies in cancer.
Insights
Dynamin-related protein 1 (DRP1) regulates mitochondrial structure and function, crucial in cancer. Understanding DRP1
Area of Science:
- Cell Biology
- Biochemistry
- Oncology
Background:
- Subcellular structures, particularly mitochondria, play critical roles in human diseases, especially cancer.
- Mitochondrial dynamics, regulated by proteins like DRP1, are vital for cellular function.
- Cancer cells exhibit altered signaling pathways that impact cellular homeostasis.
Purpose of the Study:
- To review the interplay between DRP1-mediated mitochondrial structure-function and cancer-associated signaling pathways.
- To elucidate the structural features and regulatory mechanisms of DRP1.
- To explore the association of DRP1 with altered cellular pathways in cancer.
Main Methods:
- Literature review and synthesis of existing research on DRP1, mitochondrial dynamics, and cancer signaling.
- Analysis of structural aspects and post-translational modifications of DRP1.
- Examination of DRP1's role in various cancer-related cellular pathways.
Main Results:
- DRP1 is a key regulator of mitochondrial fission, influencing organelle function.
- DRP1 activity is modulated by various post-translational modifications.
- DRP1 is implicated in multiple signaling pathways dysregulated in cancer cells.
Conclusions:
- The relationship between DRP1, mitochondrial dynamics, and cancer signaling is complex and significant.
- Understanding DRP1's role offers insights into cancer cell biology.
- Targeting DRP1-mediated pathways may present novel therapeutic strategies for cancer treatment.
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