Evaluation of Double M-Band on Serum Protein Electrophoresis Simulating Biclonal Gammopathy: A Case Report

2021 ◽  
Author(s):  
Pallavi Jain ◽  
Reeta Choudhary ◽  
Arun Kumar Harith ◽  
Charu Yadav
Keyword(s):  
Case Report ◽  
Serum Protein ◽  
Protein Electrophoresis ◽  
Serum Protein Electrophoresis ◽  
Biclonal Gammopathy

scholarly journals An Unusual Pattern in Serum Protein Electrophoresis to Take in Mind: A Case Report

2021 ◽  
pp. e00200
Author(s):  
J.M. Gastélum-Cano ◽  
J. Fragoso-Flores ◽  
V.M. Noffal-Nuño ◽  
M. Deffis-Court
Keyword(s):  
Case Report ◽  
Serum Protein ◽  
Protein Electrophoresis ◽  
Serum Protein Electrophoresis ◽  
Unusual Pattern

scholarly journals Diagnosing Paraproteinemic Keratopathy: A Case Report

2021 ◽  
pp. 337-343
Author(s):  
Eugenie Mok ◽  
Ka Wai Kam ◽  
Anthony J. Aldave ◽  
Alvin L. Young
Keyword(s):  
Optical Coherence Tomography ◽  
Genetic Testing ◽  
Serum Protein ◽  
Molecular Genetic ◽  
Anterior Segment ◽  
Protein Electrophoresis ◽  
Serum Protein Electrophoresis ◽  
Optical Coherence ◽  
Molecular Genetic Testing ◽  
Corneal Opacities

A 65-year-old man presented with bilateral, painless, progressive blurring of vision over 9 years. Slit-lamp examination revealed bilateral subepithelial corneal opacities in clusters located at the mid-periphery. Anterior segment optical coherence tomography, in vivo confocal microscopy (IVCM), serum protein electrophoresis, and molecular genetic testing were performed to evaluate the cause of corneal opacities. Anterior segment optical coherence tomography revealed a band-like, hyperreflective lesion in the Bowman layer and anterior stroma of both corneas. IVCM revealed hyperreflective deposits in the epithelium, anterior stroma, and endothelium. Serum protein electrophoresis identified the presence of paraproteins (immunoglobulin kappa), and molecular genetic testing revealed absence of mutations in the transforming growth factor beta-induced gene (<i>TGFBI</i>) and collagen type XVII alpha 1 gene (<i>COL17A1</i>). The ocular diagnosis of paraproteinemic keratopathy eventually led to a systemic diagnosis of monoclonal gammopathy of undetermined significance by our hematologist/oncologist. Paraproteinemic keratopathy is a rare differential diagnosis in patients with bilateral corneal opacities and therefore may be misdiagnosed as corneal dystrophy or neglected as scars. In patients with bilateral corneal opacities of unknown cause, serological examination, adjunct anterior segment imaging, and molecular genetic testing play a role in establishing the diagnosis.

scholarly journals Concordance between results of serum protein electrophoresis of pathological serum by cellulose acetate and capillary zone electrophoresis

2005 ◽  
Vol 49 (2) ◽  
pp. 45-51
Author(s):  
Hiroshi Ihara ◽  
Takayuki Matsumoto ◽  
Takashi Kakinoki ◽  
Yutaka Aoki ◽  
Naotaka Hashizume ◽  
...  
Keyword(s):  
Cellulose Acetate ◽  
Capillary Zone Electrophoresis ◽  
Serum Protein ◽  
Protein Electrophoresis ◽  
Serum Protein Electrophoresis ◽  
Zone Electrophoresis ◽  
Capillary Zone

scholarly journals Serum protein electrophoresis in healthy and injured southern white rhinoceros (Ceratotherium simum simum)

PLoS ONE ◽  
2018 ◽  
Vol 13 (7) ◽  
pp. e0200347 ◽  
Author(s):  
Emma H. Hooijberg ◽  
Michele Miller ◽  
Carolyn Cray ◽  
Peter Buss ◽  
Gerhard Steenkamp ◽  
...  
Keyword(s):  
Serum Protein ◽  
Protein Electrophoresis ◽  
Serum Protein Electrophoresis ◽  
Ceratotherium Simum ◽  
White Rhinoceros ◽  
Southern White Rhinoceros ◽  
Ceratotherium Simum Simum

Case report: Interference from isatuximab on serum protein electrophoresis prevented demonstration of complete remission in a myeloma patient

2021 ◽  
pp. 000456322110620
Author(s):  
Rachel D Wheeler ◽  
Micsha V Costa ◽  
Asante Crichlow ◽  
Fenella Willis ◽  
Yasmin Reyal ◽  
...  
Keyword(s):  
Monoclonal Antibody ◽  
Complete Remission ◽  
Capillary Zone Electrophoresis ◽  
Serum Protein ◽  
Plasma Cells ◽  
Survival Rates ◽  
Protein Electrophoresis ◽  
Serum Protein Electrophoresis ◽  
Zone Electrophoresis ◽  
Capillary Zone

Multiple myeloma is a haematological cancer caused by malignant plasma cells in the bone marrow that can result in organ dysfunction and death. Recent novel treatments have contributed to improved survival rates, including monoclonal antibody therapies that target the CD38 protein on the surface of plasma cells. Anti-CD38 therapies are IgG kappa monoclonal antibodies that are given in doses high enough for the drug to be visible on serum protein electrophoresis as a small paraprotein. We present a case where isatuximab, the most recent anti-CD38 monoclonal antibody to be approved for treatment of myeloma, obscured the patient’s paraprotein on gel immunofixation, so that complete remission could not be demonstrated. This was resolved using the isatuximab Hydrashift assay. The interference on gel immunofixation was unexpected because isatuximab migrated in a position distinct from the patient’s paraprotein on capillary zone electrophoresis. We demonstrate the surprising finding that isatuximab migrates in a different position on gel electrophoresis compared to capillary zone electrophoresis. It is vital that laboratories are aware of the possible interference on electrophoresis from anti-CD38 monoclonal antibody therapies, and are able to recognise these drugs on protein electrophoresis. The difference in isatuximab’s electrophoretic mobility on capillary and gel protein electrophoresis makes this particularly challenging. Laboratories should have a strategy for alternative analyses in the event that the drugs interfere with assessment of the patient’s paraprotein.

scholarly journals Visual mnemonics for serum protein electrophoresis

2013 ◽  
Vol 18 (1) ◽  
pp. 22585
Author(s):  
Carlos E. Medina-De la Garza ◽  
Marisela García-Hernández ◽  
María de los Ángeles Castro-Corona
Keyword(s):  
Serum Protein ◽  
Protein Electrophoresis ◽  
Serum Protein Electrophoresis ◽  
Visual Mnemonics
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