Cytokine production was evaluated in supernatants of cultured tumor cells that were obtained by biopsy of the breast invasive ductal carcinoma (IDC) and breast fibroadenoma (FA) and grown in vitro. In the IDC supernatants, the concentrations of pro-inflammatory (pro-oncogenic) cytokines IL-17, IL-18, and IFNγ and of IL-1 receptor antagonist were significantly higher than in the FA cell supernatants. The concentrations of anti-inflammatory cytokine IL-10 and MCP-1 protein in supernatants of IDC cells were significantly lower than those determined in FA supernatants.
Aim. Investigation of the influence of canceroembryonic antigen (CEA) on the immune cells in patients with breast tumors.Materials and methods. Peripheral blood of 67 patients with invasive ductal carcinoma (n = 44), fibroadenoma (n = 12) and breast pre-cancer (n = 11). In the supernatants of the blood cells cytokine production induced by CEA was determined by ELISA.Results. It was found that CEA stimulated production of IL-6, IL-8, IL-10, IL-1β, IL-1Ra, TNFα, G-CSF, GM-CSF and the protein MCP-1 by blood immune cells in patients with fibroadenoma compared with groups of patients with invasive ductal carcinoma and precancerous lesions. Stimulation index of CEA on cytokine production by immunocompetent cells in patients in these groups was lower than in groups of patients with fibroadenoma due to initially high levels of spontaneous cytokine production.Results. In patients with fibroadenoma CEA was found to stimulate the production of IL-6, IL-8, IL-10, IL-1β, IL-1Ra, TNFa, G-CSF, GM-CSF and MCP-1 compared with groups of patients with invasive ductal carcinoma and precancerous conditions. Indexes of the influence of CEA on cytokine production by immunocompetent cells in these groups was lower than in the fibroadenoma due to initially high spontaneous production of cytokines.Conclusion. Evident spontaneous cytokine-producing function of immunocompetent blood cells was revealed in patients with invasive ductal carcinoma and precancerous conditions compared to patients with fibroadenoma. The differences between the indices of CEA influence on cytokine production in patients with malignant, benign and precancerous conditions can serve as a basis for the development of methods of differential diagnosis of breast tumors.
The production of cytokines by peripheral blood cells and biopsy specimens of tumors stimulated by polyclonal activators (PAs) was evaluated in 34 patients with invasive ductal breast carcinoma using enzyme-linked immunosorbent assay (ELISA). Positive correlation between the stimulation index of polyclonal activators (SIPA) for IL-18 production by the tumor and the relative content of poorly differentiated cells was revealed. The latter, in turn, was positively correlated with the numbers of normal and pathologic mitoses and the degree of malignancy. Cancer cells can produce IL-18, which is involved in the process of angiogenesis, stimulates invasion and metastasis. Decrease in SIPA for the production of IL-6 and GCSF by peripheral blood cells could serve as an indicator of malignant progression in invasive ductal breast carcinoma.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.