The present invention relates to the technical field of
immunotherapy, and in particular to adoptive
T cell therapy or
T cell receptor (TCR)
gene therapy. The present invention provides a
nucleic acid encoding at least one TCRα or β chain construct of a TCR construct, the TCR construct being capable of specifically binding to the MYD88L265P
peptide of SEQ ID NO:2 in the presence of HLA-B*07:02 having a high affinity for the
peptide / HLA complex. The present invention also provides the corresponding
protein and host
cell of the above
nucleic acid, preferably CD8+ T cells, as well as the medical uses of the
nucleic acid,
protein or host
cell, particularly in the diagnosis, prevention and / or treatment of cancers expressing MYD88L265P, such as non-Hodgkin
B cell lymphomas selected from
diffuse large B cell lymphoma (DLBCL) (such as activated
B cell type DLBCL (ABC-DLBCL) or primary CNS DLBCL, cutaneous DLBCL,
leg type DLBCL or testicular DLBCL), lymphoplasmacytic
lymphoma (LPL) (such as Waldenström
macroglobulinemia (WM)) and
IgM monoclonal gammopathy of undetermined significance (IgM MGUS).