期刊
CANCER LETTERS
卷 368, 期 2, 页码 262-274出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.canlet.2015.02.017
关键词
Crystalline lens; Ionizing radiation; DNA repair factors; Nontargeted effects; Inflammation; Tumor suppressors
类别
Ionizing radiation is a proven human carcinogen and cataractogen. The crystalline lens of the eye is among the most radiosensitive tissues in the body. A clouding of the normally transparent lens (i.e., cataract) is very common. Conversely, the lens continues to grow throughout life without developing tumors, suggesting that the lens possesses strong anti-carcinogenesis mechanisms. There is mounting evidence that mutations of oncogenes, tumor suppressor genes, DNA repair genes involved in base excision repair, nucleotide excision repair, and DNA double-strand break repair, and genes involved in intercellular interactions (e.g., via connexin gap junctions), and inflammation affect cataract development. Associations of these factors with cancer have long been recognized, highlighting that cataractogenesis shares some common mechanisms with carcinogenesis. This paper briefly overviews the current knowledge on the potential involvement of tumor related factors, DNA repair factors, intercellular interactions and inflammation in spontaneous cataractogenesis, and discusses its implications for cataractogenesis induced by targeted and nontargeted effects of ionizing irradiation. (C) 2015 Elsevier Ireland Ltd. All rights reserved.
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