To investigate the clonal composition of the NSCLC-specific T cell response induced in vitro by DC-mediated cross-presentation of tumor-associated antigens, the TCRVβ and Vα repertoire of 10 selected CaPo13-specific TCCs was investigated by RT-PCR using a panel of oligonucleotide primers specific for 29 Vα and 24 Vβ families respectively. The gene discussed is COX5A; the disease is non-small cell lung carcinoma.