期刊
TRANSLATIONAL ONCOLOGY
卷 14, 期 1, 页码 -出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.tranon.2020.100905
关键词
Mitochondrial dysfunction; Cancer metabolism; Radiotherapy; Radioresistance; Cancer treatment
类别
Radiotherapy is a common treatment for cancer, but radioresistance remains a major clinical challenge as tumors develop adaptive responses to radiation-induced damage by altering cellular processes. Mitochondria play a crucial role in regulating the radiation response in tumors.
Radiotherapy is a regimen that uses ionising radiation (IR) to treat cancer. Despite the availability of several therapeutic options, cancer remains difficult to treat and only a minor percentage of patients receiving radiotherapy show a complete response to the treatment due to development of resistance to IR (radioresistance). Therefore, radioresistance is a major clinical problem and is defined as an adaptive response of the tumour to radiation-induced damage by altering several cellular processes which sustain tumour growth including DNA damage repair, cell cycle arrest, alterations of oncogenes and tumour suppressor genes, autophagy, tumour metabolism and altered reactive oxygen species. Cellular organelles, in particular mitochondria, are key players in mediating the radiation response in tumour, as they regulate many of the cellular processes involved in radioresistance. In this article has been reviewed the recent findings describing the cellular and molecular mechanism by which cancer rewires the function of the mitochondria and cellular metabolism to enhance radioresistance, and the role that drugs targeting cellular bioenergetics have in enhancing radiation response in cancer patients.
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