Abstract: |
T cells are implicated in the effective control of chronic myeloid leukemia (CML). Recently, several clinical observations supported by laboratory data, indicate the presence of CML-specific T cells. Many proteins potentially act as leukemia-specific antigens for MHC-restricted cytotoxicity in CML. These include the bcr-abl fusion protein, myeloid-specific differentiation antigens and minor histocompatibility antigens. There is recent evidence to suggest that bcr-abl junctional peptides are capable of eliciting both CD4 and CD8 responses in normal healthy donors and in patients with CML. Moreover, T cell lines can be generated that react with autologous or HLA-matched fresh CML cells, suggesting that the bcr-abl fusion protein can be processed and expressed in the MHC cell surface molecules. Clinical trials exploiting the new understanding of the immunology of CML are underway. (C) 2000 Harcourt Publishers Ltd. |
Keywords: |
clinical trial; review; cd8 antigen; t lymphocyte; cancer immunotherapy; dendritic cell; chronic myeloid leukemia; antigens, neoplasm; cancer vaccine; cancer vaccines; t-lymphocytes, cytotoxic; bcr abl protein; cd4 antigen; immunotherapy, adoptive; hla antigen; fusion proteins, bcr-abl; leukemia antigen; major histocompatibility antigen; leukemia, myeloid, chronic; human; priority journal
|