Multiparameter study of the immunophenotype of tumor infiltrating lymphocytes, in cancer patients
Russian Journal of Oncology(2016)
Abstract
For the first time in Russia the immunophenotype of tumor infiltrated lymphocytes (TIL) was investigated with the use of a method of quantitative flow cytometry. Samples from 104 patients, suffering from solid tumors (such as breast cancer, ovarian cancer, melanoma and oral cavity squamous carcinoma), were analyzed in this investigation. In the difference of cytomorphological analysis, the method of flow cytometry identified TIL in 100% of cases. In the structure of CDS+Т- lymphocytes the ratio CD4/CD8 was equal to 1,1±0,1. Serial gating strategy allowed to assess minor subpopulations of regulatory T-lymphocytes CD45+CD4+CD127+low/neg and CD45+CD8+CD28-CD11b-. Regulatory mechanisms with involvement of CD8 T-cells played the main role in the generation of immune responses at the tissue level ofpatients, suffering from solid tumors, independent of nosological form of disease.
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Key words
tumor infiltrating lymphocytes,immunophenotype,cancer patients
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