Abstract
ABSTRACT. Serum from patients with cystic fibrosis and normal controls was used to opsonize mucoid and nonmucoid Pseudomonas aemginosa particles. Opsonic activity was then determined by measuring the production of superoxide anion (O2-) from normal neutrophils stimulated with the opsonized particles. Without any opsonization, mucoid P. aeruginosa stimulated significantly more O2- than nonmucoid P. aeruginosa. Responses to nonmucoid P. aemginosa observed with heat-inactivated serum from patients with cystic fibrosis were significantly higher (p=0.008) than those observed with heat-inactivated control sera. Comparisons made between patients who were colonized with P. aeruginosa and those who were not showed that heat activated serum from colonized patients had significantly higher levels of opsonic activity than heat inactivated serum from patients who were not colonized. These differences were observed with either mucoid or nonmucoid P. aeruginosa. A negative correlation was also observed between opsonic activity and clinical status measured by Schwachman scores of colonized patients. These data indicate that in patients colonized with P. aemginosa the deterioration of their clinical status correlated with increased opsonic activity reflected in the oxidative burst response of neutrophils.
Similar content being viewed by others
Article PDF
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Bender, J., Florman, A. & Van Epps, D. Correlation of Serum Opsonic Activity in Cystic Fibrosis with Colonization and Disease State: Measurement of Opsonins to Pseudomonas aemginosa by Neutrophil Superoxide Anion Generation. Pediatr Res 22, 383–388 (1987). https://doi.org/10.1203/00006450-198710000-00002
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1203/00006450-198710000-00002
This article is cited by
-
Reactive oxygen species in the killing of Pseudomonas aeruginosa by human leukocytes
Current Microbiology (1995)
-
Anti-Pseudomonas aeruginosa IgG subclass titers in patients with cystic fibrosis: Correlations with pulmonary function, neutrophil chemotaxis, and phagocytosis
Journal of Clinical Immunology (1993)
-
Infection and immunity toPseudomonas
Clinical Reviews in Allergy (1991)
-
Decreased opsonic activity forStaphylococcus aureus in neonatal and late gestation maternal sera
Inflammation (1989)