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Characterization of Cell Membrane Extensions and Studying Their Roles in Cancer Cell Adhesion Dynamics
Published on: March 26, 2018
Dynamics of p14ARF and Focal Adhesion Kinase-Mediated Autophagy in Cancer
1Department of Biology, University of Naples Federico II, 80126 Naples, Italy. Rosa.fontana90@gmail.com.
Abstract:
It has been widely shown that the focal adhesion kinase (FAK) is involved in nearly every aspect of cancer, from invasion to metastasis to epithelial⁻mesenchymal transition and maintenance of cancer stem cells. FAK has been shown to interact with p14ARF (alternative reading frame)—a well-established tumor suppressor—and functions in the negative regulation of cancer through both p53-dependent and -independent pathways. Interestingly, both FAK and ARF (human and mouse counterpart) proteins, as well as p53, are involved in autophagy—a process of “self-digestion”—whose main function is the recycling of cellular components and quality control of proteins and organelles. In the last years, an unexpected role of p14ARF in the survival of cancer cells has been underlined in different cellular contexts, suggesting a novel pro-oncogenic function of this protein. In this review, the mechanisms whereby ARF and FAK control autophagy are presented, as well as the role of autophagy in cell migration and spreading. Integrated investigation of these cell functions is extremely important to understand the mechanism of the basis of cell transformation and migration and thus cancer development.
Insights
Focal adhesion kinase (FAK) and p14ARF (alternative reading frame) regulate autophagy, a cellular recycling process. This review explores their roles in cancer cell survival, migration, and spreading, crucial for understanding cancer development.
Area of Science:
- Oncology
- Molecular Biology
- Cell Biology
Background:
- Focal adhesion kinase (FAK) is implicated in multiple cancer processes, including invasion, metastasis, and cancer stem cell maintenance.
- p14ARF (alternative reading frame), a tumor suppressor, interacts with FAK and regulates cancer via p53-dependent and -independent pathways.
- Both FAK and ARF, along with p53, are involved in autophagy, a cellular degradation process essential for quality control.
Purpose of the Study:
- To review the mechanisms by which ARF and FAK regulate autophagy.
- To examine the role of autophagy in cancer cell migration and spreading.
- To integrate the understanding of these cellular functions in cancer development.
Main Methods:
- Literature review of studies on FAK, p14ARF, and autophagy in cancer.
- Analysis of molecular pathways linking FAK, ARF, and autophagy.
- Examination of the role of autophagy in cell migration and metastasis.
Main Results:
- FAK and ARF proteins are involved in the regulation of autophagy.
- Autophagy plays a significant role in cancer cell migration and spreading.
- p14ARF exhibits a pro-oncogenic function in cancer cell survival.
Conclusions:
- Understanding the interplay between ARF, FAK, and autophagy is critical for deciphering cancer cell transformation and migration.
- Integrated investigation of these pathways offers insights into novel therapeutic strategies for cancer.
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