Receptor tyrosine kinase signaling in cancer radiotherapy and its targeting for tumor radiosensitization

International Journal of Radiation Biology
Poushali BhattacharyaAmit Kumar

Abstract

One of the most important implications of 'Radiation Biology' research is to improve cancer radiotherapy with minimum side effects. In this regard, combination of chemotherapy with radiation has significantly improved tumor control as well as overall survival in a variety of cancers. However, this has been achieved at the cost of significant normal tissue toxicity, due to the lack of specificity of chemotherapy. Membrane-localized receptor tyrosine kinases (RTKs) have been found to play a driving role in various hallmarks of cancer. Moreover, an early successful clinical trial using RTK-antagonist (cetuximab) to improve tumor radiosensitivity has led to an advancement in this field of research. However, a comprehensive review integrating these findings of various oncogenic RTKs, from basic radiobiology-to-radiotherapy clinical trials, is lacking in literature. Therefore, the present review analyses relevant in-vitro, in-vivo, preclinical/clinical studies and postulates the concept of 'Radiation Biology of RTKs in Cancer'. The present review elucidates the effect of IR on various oncogenic RTKs and their mechanisms, downstream signaling, intracellular translocations, their role in the repair of radiation-induced DNA damage and p...Continue Reading

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May 28, 2021·Frontiers in Oncology·Carsten Herskind, Mary Helen Barcellos-Hoff

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Cell Signaling by Tyrosine Kinases

Receptor tyrosine kinases (RTKs) are the high-affinity cell surface receptors for many polypeptide growth factors, cytokines, and hormones. RTKs have been shown not only to be key regulators of normal cellular processes but also to have a critical role in the development and progression of many types of cancer. Discover the latest research on cell signaling and RTK here.

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