View clinical trials related to NK Cell Mediated Immunity.
Filter by:Renal cell cancer (RCC) is one of the most important urogenital tumors because of it's high mortality and increasing incidence. RCC, which accounts about 3% of all malignant tumors in the adults, is the most lethal urogenital cancer. The high mortality rate stimulate investigator groups to study RCC pathogenesis including immunological part. It is interesting that immunotherapy was firstly started in patients with metastatic RCC using IL-2 and interferon gamma. The first results were promising but the exact mechanism of acting was not found. In the RCC, as in the others tumors, immune cells (T lymphocytes, NK and NKT cells) are responsible for main antitumor effect. Their effect was caused by cytotoxic activity on the tumor cells. In the investigation investigators will determine patterns of aggregation of tumor infiltrating immune cells in the blood, healthy kidney and carcinomatous tissue. But, presence of this cells not implicated that this cells are active. Their activity will be determined by proofing cytotoxicity of different subgroup of immune cells. In that way investigators will present different patterns of aggregation of tumor infiltrating immune cells and their cytotoxicity which will direct that this cells are active with antitumor effect. Correlation of collected data with classical prognostic factors in the patients with RCC as tumor staging, tumor grading (Fuhrman) and histological subtype will help to determine some immunological factors as possible new prognostic factors. For conclusion, the results of this study will allow better understanding of RCC pathogenesis, specially their immunological part and become a foundation for the future investigations.
Dysfunction of natural koller cells (NK cells) is an important factor in the development of endometriosis. NK cell therapy was applied to treat severe endometriosis, which is an exploration of the pathogenesis of this refractory disease.
This study was attempted to investigate the efficiency of NK cells immunotherapy on non-small cell lung cancer with and without EGFR mutation, and evaluated response rate (RR) and the progression-free survival (PFS).
NK cells can persist and expand in vivo following adoptive transfer and may have a role in the treatment of late stage malignancies. NK also express an activating Fc receptor that mediates antibody-dependent cellular cytotoxicity (ADCC) and production of immune modulatory cytokines in response to antibody-coated targets. Nimotuzumab, an monoclonal antibody against EGFR (epidermal growth factor receptor), may enhance the ADCC effect of NK cell. This study will evaluate the safety of combination of nimotuzumab and NK Cell in treating advanced cancer patients. Blood samples will also be collected for research purposes.