Abstract:
:Many tumor cells express chemokines and chemokine receptors, and these molecules can affect both tumor progression and anti-tumor immune response. Genetic polymorphisms of some chemokine receptors were found to be closely related to malignant tumors, especially in metastasis process, including breast cancer (BC). Considering this, it was investigated a possible role for CCR2-V64I (C-C chemokine receptor 2) and CCR5-Δ32 (C-C chemokine receptor 5) genetic variants in BC context. Patients were divided into subgroups according to immunohistochemical profile of estrogen (ER) and progesterone (PR) receptors and the human epidermal growth factor receptor 2 (HER2) overexpression. No significant associations were found in relation to susceptibility (CCR2-V64I: OR 1.32; 95 % CI 0.57-3.06; CCR5-∆32: OR 1.04; 95 % CI 0.60-1.81), clinical outcome (tumor size, lymph nodes commitment and/or distant metastasis, TNM staging and nuclear grade) or therapeutic response (recurrence and survival). However, it was found a significant correlation between CCR2-V64I allelic variant and HER2 immunohistochemical positive samples (p = 0.026). All in all, we demonstrate, for the first time, a positive correlation between CCR2 receptor gene polymorphism and a subgroup of BC related to poor prognosis, which deserves further investigation in larger samples for validation.
journal_name
Clin Exp Medjournal_title
Clinical and experimental medicineauthors
Banin-Hirata BK,Losi-Guembarovski R,Oda JM,de Oliveira CE,Campos CZ,Mazzuco TL,Borelli SD,Ceribelli JR,Watanabe MAdoi
10.1007/s10238-015-0342-9subject
Has Abstractpub_date
2016-05-01 00:00:00pages
139-45issue
2eissn
1591-8890issn
1591-9528pii
10.1007/s10238-015-0342-9journal_volume
16pub_type
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更新日期:2006-03-01 00:00:00
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更新日期:2009-12-01 00:00:00
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