The Biological Impact of Radiation Exposure on Breast Cancer Development
Ionizing radiation is a well-established breast carcinogen in women and has been a widely studied cause of cancer in experimental models. Clinical data and experimental models are discussed to highlight radiation effects on the mammary gland and breast cancer as a system of heterotypic interactions among multiple cell types. Epidemiological data from different populations of women who were exposed to radiation during various stages of physiological development have offered insight into potential biological mechanisms that mediate radiation-induced breast cancer. This chapter discusses classic and current views of radiation’s action within the mammary gland and how these effects interact biologically to inform a more comprehensive conceptualization of radiation as a carcinogen, including new emphasis on a defined adult stem cell population within the mammary gland.
KeywordsIonizing radiation Stem cell Mammary gland Breast cancer
This research was supported by a DOD-BCRP predoctoral fellowship to DHN and the Department of Energy, Office of Biological and Environment Research Low Dose program, the Breast Cancer and the Environment Research Centers grant number U01 ES/CA 012801 from the National Institute of Environmental Health Sciences and the National Cancer Institute of the National Institutes of Health to MHBH. Its contents are solely the responsibility of the authors and do not necessarily represent the official views of the funding agencies.
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