Abstract
TenE. coli K1 strains isolated from the urine of children with urinary tract infections were sensitive to the bactericidal action of normal human serum (NHS). The role of the particular mechanisms of complement activation was determined in the process of killing these strains, showing variable sensitivity to the bactericidal action of NHS; three mechanisms of activation of human complement were observed. Important role of alternative pathway activation in the bactericidal action of NHS againstE. coli K1 strains independent of the classical and lectin pathways was not established.
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Abbreviations
- EGTA:
-
glycol-bis(2-aminoethylether)-N,N,N′,N′-tetraacetic acid
- NeuNAc:
-
5-acetamido-3,5-dideoxy-d-glycero-d-galacto-2-nonulosonic acid
- HS50°C:
-
human serum with inhibited alternative pathway of complement activation
- HSMgEGTA:
-
human serum with inhibited classical and lectin pathways of complement activation
- LPS:
-
lipopolysaccharide(s)
- NHS:
-
normal human serum
- OM:
-
outer membrane
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Bugla-Płoskońska, G., Cisowska, A., Karpińska, K. et al. The mechanisms of activation of normal human serum complement byEscherichia coli strains with K1 surface antigen. Folia Microbiol 51, 627–632 (2006). https://doi.org/10.1007/BF02931630
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DOI: https://doi.org/10.1007/BF02931630