| Literature DB >> 1612745 |
H K Guttormsen1, R Bjerknes, A Naess, V Lehmann, A Halstensen, S Sørnes, C O Solberg.
Abstract
We have examined the opsonic activity of sera from patients with Neisseria meningitidis (B:15:P1.16) infections against different meningococcal strains, using flow cytometry and luminol-enhanced chemiluminescence. A marked increase in the phagocytosis of ethanol-fixed meningococcal strains of different serogroups, serotypes, and serosubtypes was demonstrated in the presence of convalescence sera compared with acute sera. Convalescence sera also caused a significant increase of leukocyte oxidative metabolism during phagocytosis, as measured by luminol-enhanced chemiluminescence. The sera contained a broad range of opsonins cross-reacting with serogroup A, B, C, W-135, and Y meningococci of different serotypes and serosubtypes, indicating that the cross-reacting opsonins recognized surface epitopes other than those determined by current serotyping schemes.Entities:
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Year: 1992 PMID: 1612745 PMCID: PMC257234 DOI: 10.1128/iai.60.7.2777-2783.1992
Source DB: PubMed Journal: Infect Immun ISSN: 0019-9567 Impact factor: 3.441