Profiles of cytokine and chemokine gene expression in human pulmonary epithelial cells induced by human and avian influenza viruses
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AbstractInfluenza pandemic remains a serious threat to human health. In this study, the repertoire of host cellular cytokine and chemokine responses to infections with highly pathogenic avian influenza H5N1, low pathogenicity avian influenza H9N2 and seasonal human influenza H1N1 were compared using an in vitro system based on human pulmonary epithelial cells. The results showed that H5N1 was more potent than H9N2 and H1N1 in inducing CXCL-10/IP-10, TNF-alpha and CCL-5/RANTES. The cytokine/chemokine profiles for H9N2, in general, resembled those of H1N1. Of interest, only H1N1, but none of the avian subtypes examined could induce a persistent elevation of the immune-regulatory cytokine - TGF-beta 2. The differential expression of cytokines/chemokines following infection with different influenza viruses could be a key determinant for clinical outcome. The potential of using these cytokines/chemokines as prognostic markers or targets of therapy is worth exploring.
All Author(s) ListLam WY, Yeung ACM, Chu IMT, Chan PKS
Journal nameVirology Journal
Volume Number7
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesVirology; VIROLOGY

Last updated on 2021-27-11 at 00:02