PMID: 8993004Jan 15, 1997Paper

Eosinophils transcribe and translate messenger RNA for inducible nitric oxide synthase

The Journal of Immunology : Official Journal of the American Association of Immunologists
V del PozoC Lahoz

Abstract

Because of the involvement of nitric oxide (NO) in inflammatory states such as parasitic and hypersensitivity disorders and the fact that eosinophils are one of the cell types implicated, we asked whether eosinophils were able to express mRNA specific to inducible NO synthase (iNOS) and iNOS protein and to secrete nitric oxide. iNOS protein was detected on eosinophil preparations by immunocytochemistry using iNOS mAb. Expression of iNOS protein was also detected by immunoblotting in human purified eosinophils and an eosinophilic leukemia cell line, Eol-3. Nitrite production was detected in the supernatant of human eosinophils and Eol-3 cells cultured for 24 h, and was completely inhibited in the presence of the NOS inhibitor N-methylester-L-arginine. iNOS cDNA was obtained by reverse transcription-PCR. After subcloning, sequencing of the 259-bp fragment from three different human eosinophils cDNAs revealed 97% identity with macrophage/monocyte iNOS. Our studies describe for the first time the presence of iNOS on eosinophil and a putative new role for this cell in inflammatory states such as asthma and parasitic disease.

Citations

Nov 16, 2001·Biochemical Pharmacology·S M ThomazziE Antunes
May 22, 2002·European Journal of Pharmacology·Heloisa H A FerreiraGilberto De Nucci
Dec 8, 2000·Thrombosis Research·S Sethi, M Dikshit
Feb 24, 2000·International Journal of Immunopharmacology·A S Heiman, D Allen-Gipson
Aug 28, 1998·British Journal of Pharmacology·H IijimaS Hasegawa
Jul 25, 2013·Allergology International : Official Journal of the Japanese Society of Allergology·Kazuto MatsunagaYoshiaki Minakata

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