Jaagsiekte Sheep Retrovirus (JSRV): From virus to lung cancer in sheep

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Abstract

Jaagsiekte Sheep Retrovirus (JSRV) is a betaretrovirus infecting sheep. This virus is responsible for a pulmonary adenocarcinoma, by transformation of epithelial cells from the bronchioli and alveoli. This animal cancer is similar to human bronchioloalveolar cancer (BAC), a specific form of human lung cancer for which a viral aetiology has not yet been identified. JSRV interacts with target cells through the membrane receptor Hyal2. The JSRV genome is simple and contains no recognised oncogene. It is now well established that the viral envelope protein is oncogenic by itself, via the cytoplasmic domain of the transmembrane glycoprotein and some domains of the surface glycoprotein. Activation of the PI3K/Akt and MAPK pathways participates in the envelopeinduced transformation. Tumour development is associated with telomerase activation. This review will focus on the induction of cancer by JSRV. © INRA, EDP Sciences, 2007.

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Leroux, C., Girard, N., Cottin, V., Greenland, T., Mornex, J. F., & Archer, F. (2007). Jaagsiekte Sheep Retrovirus (JSRV): From virus to lung cancer in sheep. Veterinary Research. EDP Sciences. https://doi.org/10.1051/vetres:2006060

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