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A preparation of tumor infiltrating lymphocytes (TILs) that are transduced with a retroviral vector encoding a gene for a dominant-negative form of the transforming growth factor beta (TGFb) receptor, TGFbDNRII, with potential immunomodulating activity. Upon administration, the TGFbDNRII-transduced autologous TILs recognize and kill tumor cells. The expression of TGFbDNRII allows for the TILs to be resistant to TGF-b-mediated inhibition of T cell proliferation and activation, which allows optimal TIL activity. The immunosuppressant TGF-b is produced by tumor cells and plays a key role in the repression of the immune system. Check for \'https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C111992\' active clinical trials using this agent. (\'http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C111992\' NCI Thesaurus)
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