The association of toxoplasmosis and the levels of IL-10 and IL-12 in women with breast cancer
The current study conducted during the period from October 2019 to April 2020 in the Department of Biology/ Faculty of Education for Girls/ University of Kufa , which aims to investigate the association of infection with the Toxoplasma gondii on the concentration of IL-10 and IL-12 in women with breast cancer in Al Najaf Governorate. The study included 49 serum samples belonging to women with breast cancer and 30 serum samples for healthy women who represented the control group. In both groups, the women ranged between (30 - 70) years. IgG and IgM antibodies to T. gondii parasite and IL-10, IL-12 levels were tested for all serum samples using ELISA technique. The results showed that the highest percentage was for IgG- positive samples which amounted to 57.14%, while the lowest percentage was for IgM- positive samples and IgM & IgG - positive samples that reached 24.5% .The results also showed that the infection with T. gondii has a significant effect at the level P≤0.05 in the rate of concentration of IL—10, IL—12, which was (359+28.3, 21+2.4) pg/ml respectively, compared to the control group that was (118+11.8, 8+1.04,) pg/ml respectively. The conclusion from this study that the majority of infections with T.gondii parasite were chronic as a result of the high percentage of IgG - positive cases and that the parasites had a significant effect in stimulating the cellular immune response by increasing the level of IL-10 and IL-12 in women with breast cancer. Keywords: Toxoplasma gondii, Breast Cancer, IL-10, IL-12.