Kyasanur Forest disease virus (KFDV) is a highly pathogenic tick-borne flavivirus enzootic to India. In humans, KFDV causes a severe febrile disease. In some infected individuals, hemorrhagic manifestations, such as bleeding from the nose and gums and gastrointestinal bleeding with hematemesis and/or blood in the stool, have been reported. However, the mechanisms underlying these hemorrhagic complications remain unknown, and there is no information about the specific target cells for KFDV. We investigated the interaction of KFDV with vascular endothelial cells (ECs) and monocyte-derived dendritic cells (moDCs), which are key targets for several other hemorrhagic viruses. Here, we report that ECs are permissive to KFDV infection, which leads to their activation, as demonstrated by the upregulation of E-selectin, intercellular adhesion molecule 1, and vascular cell adhesion molecule 1 at the mRNA and protein levels. Increased expression of these adhesive molecules correlated with increased leukocyte adhesion. Infected ECs upregulated the expression of interleukin (IL)-6 but not IL-8. Additionally, moDCs were permissive to KFDV infection, leading to increased release of IL-6 and tumor necrosis factor-α. Supernatants from KFDV-infected moDCs caused EC activation, as measured by leukocyte adhesion. The results indicate that ECs and moDCs can be targets for KFDV and that both direct and indirect mechanisms can contribute to EC activation.

• MeSH
• CD antigeny genetika   imunologie   MeSH
• cévní buněčněadhezivní molekula-1 genetika   imunologie   MeSH
• dendritické buňky imunologie   virologie   MeSH
• endoteliální buňky imunologie   virologie   MeSH
• interleukin-6 genetika   imunologie   MeSH
• interleukin-8 genetika   imunologie   MeSH
• kadheriny genetika   imunologie   MeSH
• kultivované buňky MeSH
• lidé MeSH
• messenger RNA MeSH
• mezibuněčná adhezivní molekula-1 genetika   imunologie   MeSH
• nemoc kyasanurského lesa imunologie   MeSH
• TNF-alfa genetika   imunologie   MeSH
• viry klíšťové encefalitidy imunologie   patogenita   MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• Názvy látek
• CD antigeny MeSH
• CDH1 protein, human MeSH Prohlížeč
• cévní buněčněadhezivní molekula-1 MeSH
• CXCL8 protein, human MeSH Prohlížeč
• ICAM1 protein, human MeSH Prohlížeč
• IL6 protein, human MeSH Prohlížeč
• interleukin-6 MeSH
• interleukin-8 MeSH
• kadheriny MeSH
• messenger RNA MeSH
• mezibuněčná adhezivní molekula-1 MeSH
• TNF-alfa MeSH