Maryam Hamidinia1, Mehri Ghafourian Boroujerdnia2, Abdolhassan Talaiezadeh3, Ghasem Solgi4, Reyhaneh Roshani1, Sara Iranprast1, Ali Khodadadi1. 1. Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. ; Cancer Petroleum and Environmental Pollutants Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. 2. Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. 3. Cancer Petroleum and Environmental Pollutants Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. ; Department of Surgery, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. 4. Department of Immunology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
Abstract
PURPOSE: Currently, cancer as a major problem around the world threatens human health and has a high incidence in developing countries. Many reports have indicated that patients suffering from cancer demonstrate decreased antitumor immune responses as well as a high prevalence of T regulatory population. It has been reported that Foxp3(+)Tregs exert suppression by cell contact-dependent mechanisms which are mediated by soluble factors such as immunosuppressive cytokines like IL-10, TGF-β and IL-35. Consequently there is a great need to identify prognostic and diagnostic biomarkers of regulatory T cells for vaccine and drug development. METHODS: In this study IL-10, TGF-β, IL-35 and Foxp3 mRNA gene expression has been measured in peripheral blood of 40 breast cancer patients and 40 normal age-matched women using quantitative real-time PCR (qRT-PCR) method with Master Mix reaction containing SYBER Green. GAPDH gene was used as housekeeping gene. RESULTS: Our data demonstrated a significant up-regulation of IL-10, TGF-β, P35, EBI3 and Foxp3 gene expression in patients' peripheral blood compared to normal healthy controls (p<0.05). CONCLUSION: The data suggests that the immune system is suppressed in breast cancer patients, which may be due to elevated Treg cells population. These results may be useful for diagnostic or therapeutic purposes. However it may require more investigations.
PURPOSE: Currently, cancer as a major problem around the world threatens human health and has a high incidence in developing countries. Many reports have indicated that patients suffering from cancer demonstrate decreased antitumor immune responses as well as a high prevalence of T regulatory population. It has been reported that Foxp3(+)Tregs exert suppression by cell contact-dependent mechanisms which are mediated by soluble factors such as immunosuppressive cytokines like IL-10, TGF-β and IL-35. Consequently there is a great need to identify prognostic and diagnostic biomarkers of regulatory T cells for vaccine and drug development. METHODS: In this study IL-10, TGF-β, IL-35 and Foxp3 mRNA gene expression has been measured in peripheral blood of 40 breast cancerpatients and 40 normal age-matched women using quantitative real-time PCR (qRT-PCR) method with Master Mix reaction containing SYBER Green. GAPDH gene was used as housekeeping gene. RESULTS: Our data demonstrated a significant up-regulation of IL-10, TGF-β, P35, EBI3 and Foxp3 gene expression in patients' peripheral blood compared to normal healthy controls (p<0.05). CONCLUSION: The data suggests that the immune system is suppressed in breast cancerpatients, which may be due to elevated Treg cells population. These results may be useful for diagnostic or therapeutic purposes. However it may require more investigations.
Entities:
Keywords:
Breast cancer; Foxp3; IL-10; IL-35; TGF-β
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