Regulation of the release of alveolar macrophage-derived neutrophil chemotactic factor

J. E. Gadek, G. W. Hunninghake, R. L. Zimmerman, Ronald Crystal

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

In order to further clarify the physiologic role of the neutrophil-directed chemotactic factor derived from alveolar macrophages, we evaluated those stimuli that possess the potential to regulate the quantity and kinetics of its release in vitro. In short-term culture, particulate stimuli (Staphylococcus albus, Micropolyspora faeni, zymosan, and Sepharose 4B) as well as IgG-immune complexes induced normal guinea pig alveolar macrophages to release significant quantities of this chemotactic factor. In addition, serum opsonization of particulate stimuli resulted in significant augmentation of release of the chemotactic factor from alveolar macrophages responding to these particles. This serum augmentation was associated with the fixation of C3b to the particle surface via the alternative complement pathway. Purified C3b, by itself was also capable of inducing release of this macrophage-derived mediator. Partial characterization of this chemotactic factor revealed that it was a material of low molecular weight (400 to 600 daltons), and that it was antigenically and physically distinct from C5a. These studies suggested that the induction of chemotactic factor release from alveolar macrophages responding to microorganisms, noninfectious particulates, antigen-complexed IgG, and C3b may contribute to the pathophysiologic events observed in those lung diseases characterized by an influx of neutrophils into the pulmonary parenchyma.

Original languageEnglish
Pages (from-to)723-733
Number of pages11
JournalAmerican Review of Respiratory Disease
Volume121
Issue number4 I
Publication statusPublished - 1 Jan 1980
Externally publishedYes

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Chemotactic Factors
Alveolar Macrophages
Interleukin-8
Immunoglobulin G
Alternative Complement Pathway
Nocardia
Zymosan
Antigen-Antibody Complex
Serum
Staphylococcus
Sepharose
Lung Diseases
Guinea Pigs
Neutrophils
Molecular Weight
Macrophages
Antigens
Lung

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine

Cite this

Regulation of the release of alveolar macrophage-derived neutrophil chemotactic factor. / Gadek, J. E.; Hunninghake, G. W.; Zimmerman, R. L.; Crystal, Ronald.

In: American Review of Respiratory Disease, Vol. 121, No. 4 I, 01.01.1980, p. 723-733.

Research output: Contribution to journalArticle

Gadek, J. E. ; Hunninghake, G. W. ; Zimmerman, R. L. ; Crystal, Ronald. / Regulation of the release of alveolar macrophage-derived neutrophil chemotactic factor. In: American Review of Respiratory Disease. 1980 ; Vol. 121, No. 4 I. pp. 723-733.
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