Elevated levels of antibody to myelin oligodendrocyte glycoprotein is not specific for patients with multiple sclerosis.
OBJECTIVE
To evaluate the presence and specificity of anti-myelin oligodendrocyte glycoprotein (MOG) antibody in the cerebrospinal fluid and plasma of patients with multiple sclerosis (MS).


METHODS
Case-control study of patients with clinically definite MS compared with patients with other neurologic diseases (ONDs) of the central nervous system and control subjects.


METHODS
Referral center in the Department of Neurology of Hadassah University Hospital, greater Jerusalem area, Israel.


METHODS
Consecutive cerebrospinal fluid samples from 31 patients with MS, 31 patients with ONDs, and 28 healthy controls; and plasma samples from 33 patients with MS, 28 patients with ONDs, and 31 healthy controls were taken from the cerebrospinal fluid and plasma bank of the Department of Neurology, Hadassah University Hospital.


METHODS
Levels and frequencies of anti-MOG antibody in patients with MS, as defined by enzyme-linked immunosorbent assay.


RESULTS
Cerebrospinal fluid levels of antibodies to MOG and to myelin basic protein were significantly higher in patients with MS (P<.001 and P = .001, respectively) and patients with ONDs (P = .005 and P = .03, respectively) compared with controls; frequency of antibodies to MOG, but not to myelin basic protein, was higher in patients with MS and patients with ONDs (P = .01 and P = .003, respectively, for the frequency of anti-MOG antibody, and P = .65 and P = .41, respectively, for the frequency of anti-myelin basic protein antibody). Plasma levels of antibodies to MOG and to myelin basic protein were higher in patients with MS compared with patients with ONDs (P = .003 for both comparisons) and with controls (P = .03 and P = .04, respectively); however, the frequency of antibodies to MOG and myelin basic protein was similar in patients with MS, patients with ONDs (P=.54 and P = .82, respectively), and controls (P = .50 and P = .14, respectively).


CONCLUSIONS
The elevated presence of anti-MOG antibody is not specific for MS because a similar appearance was also demonstrated in patients with ONDs. Therefore, it is not clear whether this antibody is pathogenic in MS or, on the contrary, has a defensive role against further immune-mediated damage after myelin breakdown.
Karni
A
A
Department of Neurology, Hadassah University Hospital, Hebrew University Hadassah Medical School, Jerusalem, Israel. akarni@cc.huji.ac.il
Bakimer-Kleiner
R
R
Abramsky
O
O
Ben-Nun
A
A
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000906:Antibodies / Q000134:cerebrospinal fluid*; D001324:Autoantigens / Q000134:cerebrospinal fluid; D016022:Case-Control Studies; D002493:Central Nervous System Diseases / Q000276:immunology*; D002648:Child; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000276:immunology*; D009185:Myelin Proteins; D009186:Myelin Sheath / Q000276:immunology / Q000473:pathology; D018992:Myelin-Associated Glycoprotein / Q000134:cerebrospinal fluid / Q000276:immunology*; D063308:Myelin-Oligodendrocyte Glycoprotein
D000906:Antibodies; D001324:Autoantigens; C571326:MOG protein, human; D009185:Myelin Proteins; D018992:Myelin-Associated Glycoprotein; D063308:Myelin-Oligodendrocyte Glycoprotein