PMID- 15072749 OWN - NLM STAT- MEDLINE DCOM- 20040805 LR - 20061115 IS - 1386-6532 (Print) IS - 1386-6532 (Linking) VI - 30 IP - 1 DP - 2004 May TI - Towards an in vitro model for acute hemorrhagic conjunctivitis: cytokine-mediated vascular endothelial cell activation triggered by enterovirus type 70 infection. PG - 19-23 AB - BACKGROUND: Little is known of the pathogenetic mechanisms of enterovirus type 70 (EV70), a causative agent of acute hemorrhagic conjunctivitis. However, virus- or cytokine-induced perturbation of vascular endothelial cells are potential triggering events. OBJECTIVE: To determine whether EV70 infection of human umbilical vascular endothelial cells (HUVECs) and human corneal epithelial cells (HCEs) causes the release of vasoactive cytokines, capable of triggering vascular endothelial cell activation. STUDY DESIGN: Susceptibility of cultured HUVECs and HCEs to EV70 was tested by observing the appearance of cytopathic effect or immunoprecipitation of viral protein in infected cells. The culture fluids from the virus-infected cells were tested for their ability to stimulate the expression of intercellular adhesion molecule-1 (ICAM-1) on uninfected HUVECs. Anti-cytokine antibodies were used to identify ICAM-1-activating cytokine(s). RESULTS: Both HUVECs and HCEs were susceptible to EV70 infection. Culture fluids from EV70-infected HUVECs and HCEs stimulated ICAM-l expression on uninfected HUVECs, which was completely blocked by anti-interleukin-1alpha (IL-1alpha) antibody but not by interleukin-1beta (IL-1beta) or anti-tumor necrosis factor alpha (TNFalpha) antibodies. CONCLUSION: This study provides the first evidence of EV70 infection of both HCEs and HUVECs, and furthermore, identifies IL-1alpha as the predominant endothelial cell-activating factor produced by EV70-infected cells. Since endothelial cell activation is often an initiating step towards vascular permeability and/or inflammation, the perturbation of endothelial cell function through EV70 induced IL-1alpha is thus a potential contributory factor in the pathogenesis of EV70-associated hemorrhagic conjunctivitis. FAU - Chang, Cheng-Hsien AU - Chang CH AD - Department of Ophthalmology, Kaohsiung Medical University, Kaohsiung, Taiwan. FAU - Lin, Kuei-Hsiang AU - Lin KH FAU - Anderson, Robert AU - Anderson R LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - J Clin Virol JT - Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology JID - 9815671 RN - 0 (Antibodies) RN - 0 (Interleukin-1) RN - 0 (Tumor Necrosis Factor-alpha) RN - 126547-89-5 (Intercellular Adhesion Molecule-1) SB - IM MH - Antibodies MH - Capillary Permeability MH - Cells, Cultured MH - Conjunctivitis, Acute Hemorrhagic/immunology/*virology MH - Cytopathogenic Effect, Viral MH - Endothelial Cells/*immunology/*virology MH - Enterovirus D, Human/growth & development/*pathogenicity MH - Epithelial Cells/immunology/virology MH - Epithelium, Corneal/immunology/*virology MH - Gene Expression Regulation MH - Humans MH - Intercellular Adhesion Molecule-1/biosynthesis MH - Interleukin-1/*immunology/metabolism MH - Tumor Necrosis Factor-alpha/immunology EDAT- 2004/04/10 05:00 MHDA- 2004/08/06 05:00 CRDT- 2004/04/10 05:00 PHST- 2003/03/31 00:00 [received] PHST- 2003/07/01 00:00 [revised] PHST- 2003/07/29 00:00 [accepted] PHST- 2004/04/10 05:00 [pubmed] PHST- 2004/08/06 05:00 [medline] PHST- 2004/04/10 05:00 [entrez] AID - S1386653203002294 [pii] AID - 10.1016/j.jcv.2003.07.003 [doi] PST - ppublish SO - J Clin Virol. 2004 May;30(1):19-23. doi: 10.1016/j.jcv.2003.07.003.