Effect of in vitro preincubation of polymorphonuclear leukocytes on formylmethionyl-leucyl-phenylalanine-induced chemiluminescence - PubMed (original) (raw)

Effect of in vitro preincubation of polymorphonuclear leukocytes on formylmethionyl-leucyl-phenylalanine-induced chemiluminescence

C Dahlgren et al. Infect Immun. 1982 Jul.

Abstract

When polymorphonuclear leukocytes (PMNL) and soluble or particulate matter interact, the cells produce chemiluminescence. The chemotactic peptide formylmethionyl-leucyl-phenylalanine induced a two-peak chemiluminescence response in PMNL. The response was modified, both in magnitude and in the time course of the response, when PMNL were incubated at 22 degrees C for 15 to 120 min before the addition of stimulus. The cellular response to formylmethionyl-leucyl-phenylalanine was also changed by the addition of cell-free supernatants from stored PMNL suspensions to freshly prepared PMNL before the addition of formylmethionyl-leucyl-phenylalanine. This indicated that PMNL during storage released substances that changed the chemiluminescence response. A similar change could be obtained by addition of purified myeloperoxidase to freshly prepared PMNL before the addition of stimulus, indicating that the myeloperoxidase-hydrogen peroxide system can function as a modulator of the cellular response to chemotactic factors.

PubMed Disclaimer

Similar articles

Cited by

References

    1. J Bacteriol. 1967 Nov;94(5):1425-30 - PubMed
    1. Scand J Clin Lab Invest Suppl. 1968;97:77-89 - PubMed
    1. Infect Immun. 1974 Jun;9(6):1051-6 - PubMed
    1. Proc Natl Acad Sci U S A. 1975 Mar;72(3):1059-62 - PubMed
    1. J Clin Invest. 1976 Jul;58(1):50-60 - PubMed

Publication types

MeSH terms

Substances

LinkOut - more resources