Abstract
Haemophilus influenzae and its extracellular products (EP) did not release histamine in leukocyte suspensions from normal individuals. However, the EP were found to enhance basophil histamine release triggered by anti-IgE and by the calcium ionophore A23187. Experiments with EP indicate that it is the content of endotoxins which is responsible for the potentiating effect. Removal of endotoxin from the EP thus completely abolished the potentiating effect, whereas inactivation of its protease and proteins by heat-treatment or by proteinase K did not change the potentiation. A reinforcement of mediator release by the extracellular products ofH. influenzae might play a pathophysiological role in chronic obstructive pulmonary disease.
Similar content being viewed by others
References
G. Rhind, G. A. Gould, F. Ahmad, M. J. Croughan and M. A. Calder,Haemophilus parainfluenzae and H. influenzae respiratory infections: comparison of clinical features. Br. Med. J.291, 707–708 (1985).
J. C. van der Zwan, N. G. M. Orie, H. F. Kauffman, P. W. J. Wiers and K. de Vries,Bronchial obstructive reactions after inhalation with endotoxin and precipitogens of Haemophilus influenzae in patients with chronic non-specific lung disease. Clin. Allergy12, 547–559 (1982).
S. Norn,A medical hypothesis. Bacteria-induced histamine release: possible relationship to asthma. Rev. fr. Allergol.28, 199–203 (1988).
P. Clementsen, H. Bisgaard, M. Pedersen, H. Permin, E. Struve-Christensen, N. Milman, B. Nüchel Petersen and S. Norn,Staphylococcus aureus and influenza A virus stimulate human bronchoalveolar cells to release histamine and leukotrienes. Agents and Actions27, 107–109 (1989).
M. K. Church, S. Norn, G. J.-K. Pao and S. T. Holgate,Non-IgE-dependent bacteria-induced histamine release from human lung and tonsillar mast cells. Clin. Allergy17, 341–353 (1987).
S. Norn, L. Bæk, C. Jensen, P. S. Skov, H. Permin, J. O. Jarløv and C. Koch,Influence of bacterial endotoxins on basophil histamine release. Allergy41, 125–130 (1986).
J. Mestecky and M. Kilian,Immunoglobulin A (IgA). Methods in Enzymology116, 37–75 (1985).
L. Bæk,New, sensitive rocket immunoelectrophoretic assay for measurement of the reaction between endotoxin and Limulus amoebocyte lysate. J. Clin. Microbiol.17, 1013–1020 (1983).
P. S. Skov and S. Norn,A simplified method for measuring basophil histamine release and blocking antibodies in hay fever patients. Basophil histamine content and cell preservation. Acta Allergol.32, 170–182 (1977).
P. A. Shore, A. Burkhalter and V. A. Cohn,A method for fluorometric assay of histamine in tissues. J. Pharmacol. exp. Ther.127, 182–186 (1959).
T. F. Smith, M. Aelvoet and D. C. Morrison,The effect of bacterial lipopolysaccaride (LPS) on histamine release from human basophils. Clin. Immunol. Immunopathol.34, 355–365 (1985).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Norn, S., Clementsen, P., Fomsgaard, A. et al. Haemophilus influenzae potentiates basophil histamine release possibly by its endotoxins. Agents and Actions 30, 57–60 (1990). https://doi.org/10.1007/BF01968997
Issue Date:
DOI: https://doi.org/10.1007/BF01968997