Platelet-Activating Factor Inhibits Ciliary Beat Frequency of Human Bronchial Epithelial Cells

Authors: Klettke, Uwe; Luck, Werner; Wahn, Ulrich; Niggemann, Bodo

Source: Allergy and Asthma Proceedings, Volume 20, Number 2, March-April 1999 , pp. 115-118(4)

Publisher: OceanSide Publications, Inc

Buy & download fulltext article:


Price: $39.50 plus tax (Refund Policy)


The aim of our study was to investigate the effect of platelet-activating factor on human bronchial ciliary beat frequency (CBF) ex vivo. Brush biopsies were obtained from eight children (mean age 6.6 years) who underwent bronchoscopy for clinical reasons (i.e., foreign body aspiration, chronic cough, stridor). Immediate measurement of CBF by phase-contrast microscopy and photoelectric technique was performed before further treatment, and then on three subsamples: after adding platelet-activating factor (PAF) (10−5 M); after adding the inhibitor WEB 2086 (10−4 M); and after adding both PAF and WEB 2086. Addition of 10−5 M PAF reduced mean CBF by Hz to Hz (p < 0.05). The inhibitory effect of PAF was completely reversed by the addition of the PAF-inhibitor WEB 2086, whereas WEB 2086 alone did not significantly influence CBF. Optimum PAF concentration had been determined in previous dose–response experiments. Our data indicates that PAF involved in airway inflammation contributes to a decrease in mucociliary clearance in humans.

Document Type: Research Article


Publication date: March 1, 1999

More about this publication?
  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

    Articles marked "F" offer free full text for personal noncommercial use only.

    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
  • Editorial Board
  • Information for Authors
  • Submit a Paper
  • Information for Advertisers
  • Reprint Requests
  • ingentaconnect is not responsible for the content or availability of external websites
Related content



Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content

Text size:

A | A | A | A
Share this item with others: These icons link to social bookmarking sites where readers can share and discover new web pages. print icon Print this page