Myeloid-derived Suppressor Cells Elimination by 5-Fluorouracil Increased Dendritic Cell-based Vaccine Function and Improved Immunity in Tumor Mice
| Autor: | Najmeh khosravianfar, Jamshid Hadjati, Afshin Namdar, Roobina Boghozian, Morteza Hafezi, Mahboubeh Ashourpour, Nasim Kheshtchin, Mahsa Banitalebi, Reza Mirzaei, Seyed Alireza Razavi |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Iranian Journal of Allergy, Asthma and Immunology, Vol 17, Iss 1 (2018) |
| Druh dokumentu: | article |
| ISSN: | 1735-1502 1735-5249 |
| Popis: | Myeloid-derived suppressor cells (MDSCs) are capable of suppressing the immune response. 5-Fluorouracil (5-FU) compared to other chemotherapy drugs have shown considerable decreases in the number of MDSCs without visible effects on T, B and natural killer cells, as well as dendritic cells (DCs). DC-based vaccines considered to be appropriate candidates for cancer immunotherapy. However, due to the presence of various factors like MDSCs in tumor microenvironment, DC vaccine cannot effectively perform its function. The purpose of this study was to evaluate the effect of low doses of 5-FU on the efficacy of DC-based vaccines in preventing and treating of melanoma tumor model. This research was performed on 28 melanoma tumor bearing C57BL/6 female mice. The mice were randomly divided to 4 groups, group 1 is control population while group 2 and 3 were treated with DC vaccine and 5-FU respectively and group 4 was treated with both DC Vaccine and 5-FU. The mice survival, tumor growth rate, number of MDSC and CD8+/ CD107a+ T cells in mice spleen were evaluated in each group with maximum result in group 4. Our results revealed that combination of DC vaccine and 5-FU reduced number of MDSCs (3%) and also tumor growth rate(10%)(p |
| Databáze: | Directory of Open Access Journals |
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