Neutrophil attractant/activation protein-1 (NAP-1) causes human basophil histamine release

Martha V. White, Teizo Yoshimura, William Hook, Michael A. Kaliner, Edward J. Leonard

Research output: Contribution to journalArticlepeer-review

91 Citations (Scopus)


Basophils from five of six human donors released histamine in response to neutrophil attractant/activation protein-1 (NAP-1). Histamine release by this protein was concentration-dependent over the range of 3×10-7 M to 4×10-6 M. At 4×10-6 M, the mean agonist-induced release was 16 ± 3% (SEM) of total basophil histamine. For the same basophil preparations, release by anti-IgE was 35 ± 6%. The chemotactic protein did not cause release of histamine from basophils at 0°C or in the presence of 10 mM EDTA. The time-course of histamine release was rapid; release was 43% of maximal after 30 s and maximal after 1 min of incubation. Thus, in addition to its previously characterized neutrophil chemotactic and activating properties, this protein activates human basophils.

Original languageEnglish
Pages (from-to)151-154
Number of pages4
JournalImmunology Letters
Issue number2
Publication statusPublished - Aug 1989
Externally publishedYes


  • Basophils
  • Chemotaxis
  • Histamine release
  • Monocyte
  • Neutrophil
  • Neutrophil attractant/activation protein-1

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology


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