1887

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Volume 15, Issue 3

Impairment by Species of Opsonisation and Phagocytosis of Enterobacteria Free

Abstract

SUMMARY

The ability of human polymorphonuclear leucocytes to phagocytose and kill was impaired when the human serum, used to opsonise the target bacteria, was pretreated with cultures of various species. Live and dead, either heatkilled or clindamycin-treated, bacteroides cells elicited the same phenomenon. When bacteroides-treated serum was used to opsonise different species, the subsequent uptake of all strains by polymorphonuclear leucocytes was inhibited, whereas bacteroides-treated serum inhibited the uptake of some but not all of the test strains of . The opsonic activity of untreated human serum was reduced when the classical complement pathway was inhibited by ethyleneglycolbis-(β-aminoethyl ether)N,N-tetra-acetic acid (EGTA); subsequent treatment with bacteroides did not further reduce the opsonic activity of the serum for .

  • Received:
  • Accepted:
  • Published Online:
© 1982 Pathological Society of Great Britain and Ireland
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1982-08-01
2024-04-26
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Impairment by Bacteroides Species of Opsonisation and Phagocytosis of Enterobacteria
J. Med. Microbiol. 15, 351 (1982); https://doi.org/10.1099/00222615-15-3-351
/content/journal/jmm/10.1099/00222615-15-3-351
/content/journal/jmm/10.1099/00222615-15-3-351
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