Bence Jones protein(redirected from Bence-Jones Proteins)
Bence Jones proteinAn abnormal 22–24-kD monoclonal of light-chain—usually kappa, less commonly, lambda—immunoglobulin derived from the clonal expansion(s) of plasma cells, which is found in the urine of 50–80% of patients with multiple myeloma and Waldenstrom’s macroglobulinemia. Bence-Jones protein is small enough to be excreted by the kidney.
False-positive results can occur in connective tissue disease, renal insufficiency and in other malignancies. Immunofixation electrophoresis—or more recently, serum-free light-chain assay—is the preferred method for detecting BJPs. The heat detection method—Bence Jones reaction (see there)—has fallen into disuse.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
Bence Jones proteinAn abnormal dimer of light-chain Ig derived from the clonal expansion of plasma cells, found in the urine of 50-80% of Pts with myeloma and Waldenstrom's macroglobulinemia; these proteins are small enough to be excreted by the kidney
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
Bence Jones proteinA MONOCLONAL immunoglobulin formed in excess by B lymphocytes and found in the serum and urine in cases of MYELOMATOSIS. (Henry Bence Jones, 1818–1873, English physician).
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
Bence Jones protein
Small protein, composed of a light chain of immunoglobulin, made by plasma cells.
Mentioned in: Bence Jones Protein Test
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.