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Tytuł oryginału: Eosinophil - epithelial cell interaction augments cysteinyl leukotrienes synthesis.
Autorzy: Jawień J[acek], Chłopicki S., Olszanecki R., Lorkowska B., Gryglewski R. J.
Źródło: J. Physiol. Pharmacol. 2002: 53 (1) s.127-132, il., bibliogr. 17 poz.
Sygnatura GBL: 302,092

Typ dokumentu:
  • praca doświadczalna
  • tytuł obcojęzyczny

    Wskaźnik treści:
  • ludzie
  • in vitro

    Streszczenie angielskie: Eosinophilis accumulation in the airways and sustained eosinophil-derived cysteinyl leukotrienes production repesent key elements of the inflammatory response seen in asthma. However, it is not known whether activated epithelial cells influence cysteinyl leukotrienes production by eosinophils from healthy valunteers. The aim of the present study was therefore to analyse the effects of interactions between non-atopic eosinophils and epithelial cells on cysteinyl leukotrienes production in vitro. We measured cysteinyl leukotrienes released by phorbol 12-myristate 13-acetate (PMA) - activated human eosinophils or epithelial cells (human bronchial epithelial cell line - BEAS-2B) cultured alone or together. While activated BEAS-2B cells barely formed leukotrienes (1.39 pg/ml ń 0.2) (n = 32), activated eosinophilis produced considerable amount of them (62.25 pg/ml ń 10.29) (n = 32). Interestingly, when activated eosinophils and epithelial cells were co-incubated, production of cysteinyl leukotrienes increased substantially (571.1 pg/ml ń 80.9) (n = 32). Thus, eosinophil-epithelial cell interactions, when occur, are associated with increased biosynthesis of cysteinyl leukotrienes.

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