A COMPARISON OF THE INHIBITORY EFFECT OF CROMOLINE AND NEDOCROMIL NA ON HISTAMINE-RELEASE FROM AIRWAY METACHROMATIC CELLS AND FROM PERIPHERAL BASOPHILS
S. Kivity et al., A COMPARISON OF THE INHIBITORY EFFECT OF CROMOLINE AND NEDOCROMIL NA ON HISTAMINE-RELEASE FROM AIRWAY METACHROMATIC CELLS AND FROM PERIPHERAL BASOPHILS, Immunology letters, 53(2-3), 1996, pp. 147-151
Metachromatic cells are increased in the airways of asthmatic patients
. We obtained metachromatic cells from asthmatic airways using an indu
ced sputum technique. The histamine release following ConA, anti-IgE a
nd anti-IgE + IL(3) from those cells were evaluated before and followi
ng the addition of cromoline Na and nedocromil Na. Metachromatic cells
had a higher rate of spontaneous histamine release when compared to p
eripheral basophils. Cromoline Na and nedocromil Na inhibited histamin
e release from triggered metachromatic cells but not from peripheral b
asophils. It is concluded that airway metachromatic cells from asthmat
ics behave differently than peripheral basophils.