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Nat Rev Immunol. 2009 Jun;9(6):449-56. doi: 10.1038/nri2529.

Losing your nerves? Maybe it's the antibodies.

Author information

  • 1The Feinstein Institute for Medical Research, Center of Autoimmune and Musculoskeletal Diseases, 350 Community Drive, Manhasset, New York 110301, USA. bdiamond@nshs.edu

Abstract

We propose that the normal immunocompetent B cell repertoire is replete with B cells making antibodies that recognize brain antigens. Although B cells that are reactive with self antigen are normally silenced during B cell maturation, the blood-brain barrier (BBB) prevents many brain antigens from participating in this process. This enables the generation of a B cell repertoire that is sufficiently diverse to cope with numerous environmental challenges. It requires, however, that the integrity of the BBBs is uninterrupted throughout life to protect the brain from antibodies that crossreact with microorganisms and brain antigens. Under conditions of BBB compromise, and during fetal development, we think that these antibodies can alter brain function in otherwise healthy individuals.

PMID:
19424277
[PubMed - indexed for MEDLINE]
PMCID:
PMC2783680
Free PMC Article

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