A Linkage Between Thyroid and Breast Cancer: A Common Etiology?

Autor:	Bolf EL; Department of Pharmacology, Larner College of Medicine, University of Vermont, Burlington, Vermont.; University of Vermont Cancer Center, Larner College of Medicine, University of Vermont, Burlington, Vermont., Sprague BL; University of Vermont Cancer Center, Larner College of Medicine, University of Vermont, Burlington, Vermont.; Department of Biochemistry, Larner College of Medicine, University of Vermont, Burlington, Vermont.; Department of Surgery, Larner College of Medicine, University of Vermont, Burlington, Vermont., Carr FE; Department of Pharmacology, Larner College of Medicine, University of Vermont, Burlington, Vermont. fcarr@uvm.edu.; University of Vermont Cancer Center, Larner College of Medicine, University of Vermont, Burlington, Vermont.
Jazyk:	angličtina
Zdroj:	Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology [Cancer Epidemiol Biomarkers Prev] 2019 Apr; Vol. 28 (4), pp. 643-649. Date of Electronic Publication: 2018 Dec 12.
DOI:	10.1158/1055-9965.EPI-18-0877
Abstrakt:	Breast and thyroid cancers are two malignancies with highest incidence in women. These cancers often occur metachronously. Women with thyroid cancer are at increased risk for subsequent breast cancer; women with breast cancer have an increased incidence of later development of thyroid cancer, suggesting a common etiology. This bidirectional relationship is reported worldwide; however, the underlying reasons for this co-occurrence are unknown. In this review, we summarize the current epidemiologic evidence and putative mechanisms of these metachronous or synchronous cancers. Key potential causative factors are chemotherapy and radiotherapy of the primary tumor, genetic variants linking the two diseases, hormonal signaling both from the thyroid gland and from estrogens, and lifestyle and environmental factors. There is a critical need for additional epidemiologic studies focused on gender and regional incidence together with molecular investigations on common tumorigenic pathways in these endocrine cancers. Understanding the putative mechanisms will aid in the diagnosis and clinical management of both diseases. (©2018 American Association for Cancer Research.)
Databáze:	MEDLINE
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