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A preparation of interleukin 21 (IL-21) stimulated, CD8+ T-lymphocytes sensitized to MART-1 (melanoma antigen recognized by T-cells) antigen with potential immunostimulating and antineoplastic activities. CD8+ T-lymphocytes are exposed ex vivo to autologous dendritic cells (DCs) pulsed with MART-1 antigen peptide and grown in the presence of IL-21. These tumor-reactive T-cells may stimulate a host immune response against tumor cells expressing the MART-1 antigen, resulting in tumor cell lysis. MART-1 is expressed by certain types of melanoma cells. IL-21, a cytokine involved in the regulation of cellular immune responses, may play a key role during priming of antigen-specific CD8+ T cells and may enhance proliferation of the CTLs. Check for \'https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C91088\' active clinical trials using this agent. (\'http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C91088\' NCI Thesaurus)
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