Bradykinin stimulates bronchial epithelial cells to release neutrophil and monocyte chemotactic activity

S. Koyama, Stephen Israel Rennard, R. A. Robbins

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

In the present investigation, we evaluated the potential of bradykinin (BK), histamine, and serotonin to induce the release of neutrophil and monocyte chemotactic activity (NCA and MCA) from bronchial epithelial cells (BEC). BK significantly stimulated BEC to release NCA and MCA in a dose- and time-dependent manner. Histamine weakly but significantly induced the release of both NCA and MCA in a similar fashion. Serotonin did not stimulate BEC. Checkerboard analysis showed that the NCA and MCA released in response to BK were chemotactic. Molecular-sieve column chromatography by Sephadex G-75 revealed that BK induced a single low-molecular-weight peak (~400 Da) for both NCA and MCA. The releases of NCA and MCA in response to BK and histamine were inhibited by lipoxygenase inhibitors (P < 0.01). The released NCA was inhibited by leukotriene B4 (LTB4) receptor antagonist (P < 0.01) and was slightly inhibited by platelet-activating factor receptor antagonist. LTB4 was increased in BK-stimulated BEC supernatant (P < 0.01). BK B2-receptor antagonist attenuated the release of NCA and MCA. These data suggest that BK and histamine may stimulate BEC to release NCA and MCA and may modulate neutrophil and monocyte recruitment into the airways in patients with asthma.

Original languageEnglish (US)
JournalAmerican Journal of Physiology - Lung Cellular and Molecular Physiology
Volume269
Issue number1 13-1
StatePublished - Jan 1 1995

Fingerprint

bradykinin
Bradykinin
monocytes
neutrophils
Monocytes
epithelial cells
Neutrophils
Epithelial Cells
Histamine
histamine
antagonists
leukotrienes
serotonin
Serotonin
receptors
Leukotriene B4 Receptors
Leukotriene Antagonists
Lipoxygenase Inhibitors
Leukotriene B4
Neutrophil Infiltration

Keywords

  • leukotriene B
  • platelet-activating factor

ASJC Scopus subject areas

  • Cell Biology
  • Physiology
  • Pulmonary and Respiratory Medicine
  • Agricultural and Biological Sciences(all)

Cite this

Bradykinin stimulates bronchial epithelial cells to release neutrophil and monocyte chemotactic activity. / Koyama, S.; Rennard, Stephen Israel; Robbins, R. A.

In: American Journal of Physiology - Lung Cellular and Molecular Physiology, Vol. 269, No. 1 13-1, 01.01.1995.

Research output: Contribution to journalArticle

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