title: Monoclonal and oligoclonal immunoglobulins in the serum of patients with B-chronic lymphocytic leukemia.
abstract: The incidence of monoclonal and oligoclonal immunoglobulins (paraproteins) was determined in serum samples of 45 chronic lymphocytic leukemia (B-CLL) patients using the high-resolution agarose gel electrophoresis technique combined with immunofixation. Paraproteins were identified in 25 of the 45 patients tested. Twelve paraproteins were monoclonal and 13 oligoclonal. IgG kappa and/or lambda immunoglobulin isotypes were found in 17/25 of these patients. No correlation of the lymphocyte cell morphology and the presence of paraproteins was demonstrated. The high frequency of serum oligoclonal immunoglobulins in B-CLL indicates that more than one lymphocyte clone may be present in this disease.
mesh_terms: D001402:B-Lymphocytes / Q000473:pathology*; D001853:Bone Marrow / Q000473:pathology; D005500:Follow-Up Studies; D006801:Humans; D007945:Leukemia, Lymphoid / Q000097:blood* / Q000473:pathology; D009367:Neoplasm Staging; D010266:Paraproteins / Q000032:analysis* / Q000145:classification; D010950:Plasma Cells / Q000473:pathology
chemical_list: D010266:Paraproteins