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© Pierre Gounon
Virus influenza purifié, agent de la grippe. Ce virus enveloppé possède un génome fragmenté : 8 segments d'ARN négatif protégés par une nucléocapside.
Scientific Fields
Diseases
Organisms
Applications
Technique
Starting Date
20
May 2016
Status
Ongoing
Members
2
Structures
3

About

Flaviviruses such as Japanese encephalitis virus (JEV), West Nile virus (WNV), Yellow Fever virus (YFV) and Zika virus, can infect neuronals cells and cause neuronal damages, when given access to the central nervous system (CNS).

The blood-brain barrier (BBB) is the main interface between the blood and the CNS. It is composed of endothelial cells and maintained by cross-talk of endothelial cells with astrocytes and pericytes. It regulates the brain homeostasis and controls the cellular and molecular traffic between blood and brain. Many viruses can cross this barrier by different mechanisms : direct infection the endothelial cells, crossing by infected immune cells, disruption of the BBB following peripheral infection, passing between cells without disruption of the BBB and transcytosis.

To date, little is known about neurotropic Flavivirus neuroinvasiveness. Our study aims at determining the cellular markers and viral determinants of Flavivirus neuroinvasiveness, using an in vitro model of human BBB composed of human endothelial cells hCMEC/D3 and human neuroblastoma cells SK-N-SH.

Fundings