title: OKT4+ chronic lymphocytic leukaemia cells display different reactivity with selected monoclonal antibody combinations.
abstract: Four cases of chronic T lymphocytic leukaemia are characterized by selected monoclonal antibody combinations and double-fluorescence studies. We found 3 possible combinations: OKT4++ Leu8++ Leu9+, OKT4++ Leu8+ Leu9- and the OKT4++ Leu9++ Leu8- phenotypes are correlated with different biological aspects of the disease. No markers of T cell activation were found, and serological examinations did not reveal anti-HTLV-I antibodies. In considering a larger number of patients, multiparametric analysis could be useful to better classify this heterogeneous type of leukaemia.
mesh_terms: D000368:Aged; D000911:Antibodies, Monoclonal; D005260:Female; D006801:Humans; D007945:Leukemia, Lymphoid / Q000276:immunology*; D008297:Male; D008875:Middle Aged; D010641:Phenotype
chemical_list: D000911:Antibodies, Monoclonal