Different B-cell populations are responsible for the peripheral and intrathecal antibody production in neuroborreliosis

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The diagnosis of neuroborreliosis (NB) - a serious complication of Lyme disease - relies on demonstration of intrathecal borrelia antibody production. We hypothesized that if a qualitative difference between the cerebrospinal fluid and the serum immunoblot-banding patterns was observed, then the borrelia antibodies found in the CSF could not be the result of leakage of serum antibodies to the CSF due to blood-brain barrier damage, but rather had to be produced intrathecally. CSF/serum pairs from 69 NB patients and from 85 control patients with other neurological disorders were investigated. All samples were tested blindly by immunoblot and a commercial capture ELISA kit for NB. The concordance between the two methods was 85.7%. When using the other method as reference, the accuracy of the two assays in the two patient materials was similar: 80% for sensitivity and 95% for specificity. Four types of comparative immunoblot-banding patterns that reflected intrathecal borrelia antibody synthesis were distinguished. The study showed that a simple comparison between the immunoblot pattern of serum and CSF samples allows for a reliable diagnosis of NB by demonstration of intrathecal antibody production. This is the first study to show that a qualitative difference of the antibody response between the immune response of serum and CSF is a rule. The findings also imply that partly different B-cell populations are responsible for the antibody production in the blood and in the central nervous system. In addition, our observation provides possible implications for other infectious diseases with CNS involvement.

Original languageEnglish
Pages (from-to)1631-1637
Number of pages7
JournalInternational Immunology
Issue number12
Publication statusPublished - dec. 1 2005

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

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