title: Gamma heavy chain disease in man: synthesis of a deleted gamma3 immunoglobulin by lymphoid cells in short and long term tissue culture.
abstract: Bone marrow cells were obtained from a patient with gamma heavy chain disease (HCD) whose serum contained a deleted immunoglobulin heavy chain. Incubation of the marrow cells with radioactive amino acids in short term tissue culture resulted in the synthesis of the labelled HCD protein. A permanent cell line was established from the peripheral blood of the patient. Similar labelling studies with the cell line and its cloned progeny demonstrated the synthesis of a protein identical in size and antigenicity to that synthesized by the marrow cells and found in the patient's serum. These experiments clearly demonstrated that, in this case of heavy chain disease, the deleted protein was the synthetic product of a clone of malignant lymphoid cells.
mesh_terms: D000596:Amino Acids / Q000378:metabolism; D001853:Bone Marrow / Q000276:immunology; D001854:Bone Marrow Cells; D002999:Clone Cells; D046508:Culture Techniques; D004591:Electrophoresis, Polyacrylamide Gel; D000939:Epitopes; D006362:Heavy Chain Disease / Q000276:immunology*; D006801:Humans; D007141:Immunoglobulin Fc Fragments; D007143:Immunoglobulin Heavy Chains / Q000096:biosynthesis*; D007142:Immunoglobulin gamma-Chains / Q000096:biosynthesis*; D007621:Karyotyping; D008970:Molecular Weight; D013997:Time Factors
chemical_list: D000596:Amino Acids; D000939:Epitopes; D007141:Immunoglobulin Fc Fragments; D007143:Immunoglobulin Heavy Chains; D007142:Immunoglobulin gamma-Chains