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Neurology. 2008 Mar 25;70(13 Pt 2):1113-8. doi: 10.1212/01.wnl.0000294325.63006.f8. Epub 2008 Feb 13.

Integrating risk factors: HLA-DRB1*1501 and Epstein-Barr virus in multiple sclerosis.

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Center for Neurologic Diseases, Department of Neurology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.



Individuals with high levels of antibodies to the Epstein-Barr virus nuclear antigen 1 (EBNA-1) have an increased risk of developing multiple sclerosis (MS), but this association could be confounded by genetic susceptibility.


We conducted a nested case-control study including 148 women with MS (18 with blood collected before disease onset) and 296 age-matched healthy women to determine whether the human leukocyte antigen (HLA) DRB1*1501 allele (DR15) and anti-Epstein-Barr virus (anti-EBV) antibody titers are independent risk factors for MS.


The association between anti-EBNA-1 antibody titers and MS risk was not affected by adjustment for DR15 and was similar in DR15-positive and DR15-negative women. The relative risk of MS among DR15-positive women with elevated (>1:320) anti-EBNA-1 titers was ninefold higher than that of DR15-negative women with low (<1:80) anti-EBNA-1 titers.


Anti-Epstein-Barr virus nuclear antigen 1 (anti-EBNA-1) antibody titers are a risk factor for multiple sclerosis (MS), independently from the DR15 allele. Carriers of the DR15 allele with elevated anti-EBNA-1 antibody titers may have a markedly increased risk of MS.

[Indexed for MEDLINE]

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