In:
Infection and Immunity, American Society for Microbiology, Vol. 87, No. 2 ( 2019-02)
Abstract:
Antibody responses to Mycoplasma pneumoniae correlate with pulmonary M. pneumoniae clearance. However, M. pneumoniae -specific IgG antibodies can cross-react with the myelin glycolipid galactocerebroside (GalC) and cause neurological disorders. We assessed whether antiglycolipid antibody formation is part of the physiological immune response to M. pneumoniae . We show that antibodies against M. pneumoniae proteins and glycolipids arise in serum of M. pneumoniae -infected children and mice. Although antibodies to M. pneumoniae glycolipids were mainly IgG, anti-GalC antibodies were only IgM. B-1a cells, shown to aid in protection against pathogen-derived glycolipids, are lacking in Bruton tyrosine kinase (Btk)-deficient mice. M. pneumoniae -infected Btk-deficient mice developed M. pneumoniae -specific IgG responses to M. pneumoniae proteins but not to M. pneumoniae glycolipids, including GalC. The equal recovery from M. pneumoniae infection in Btk-deficient and wild-type mice suggests that pulmonary M. pneumoniae clearance is predominantly mediated by IgG reactive with M. pneumoniae proteins and that M. pneumoniae glycolipid-specific IgG or IgM is not essential. These data will guide the development of M. pneumoniae -targeting vaccines that avoid the induction of neurotoxic antibodies.
Type of Medium:
Online Resource
ISSN:
0019-9567
,
1098-5522
DOI:
10.1128/IAI.00663-18
Language:
English
Publisher:
American Society for Microbiology
Publication Date:
2019
detail.hit.zdb_id:
1483247-1