Evaluation of anti α-d-Glcp-(1→4)-α-d-Glcp (GAGA4) IgM antibodies as a biomarker for multiple sclerosis

Autor: Anne C. La Flamme, Kristiana T. Santoso, Chriselle D. Braganza, Bridget L. Stocker, Emma M. Dangerfield, Mattie S. M. Timmer
Rok vydání: 2018
Předmět:
Zdroj: RSC Advances. 8:28086-28093
ISSN: 2046-2069
DOI: 10.1039/c8ra04897e
Popis: The correct diagnosis of multiple sclerosis (MS) remains challenging due to the complex pathophysiological and clinical characteristics of the disease. Consequently, there has been immense interest in finding a non-invasive diagnostic test for MS. Recent studies found that serum anti-α-D-Glcp-(1→4)-α-D-Glcp (GAGA4) IgM antibodies were upregulated in MS patients, and this finding led to the development of a commercial diagnostic test (gMS® Dx test), although the test has poor selectivity and has not been independently validated. Herein, we developed an enzyme-linked immunosorbent assay (ELISA) to evaluate the use and reliability of several anti-glucose IgM antibodies, including those against GAGA4, as diagnostic biomarkers for MS. In contrast to previous studies, our results show that serum anti-GAGA4 IgM antibody levels are not significantly higher in MS patients, which could potentially explain the poor selectivity of the commercial test.
Databáze: OpenAIRE