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Galectin-1 Induces Immune Response and Antiviral Ability in Cherry Valley Ducks After Duck Plague Virus Infection.

08:00 EDT 12th April 2019 | BioPortfolio

Summary of "Galectin-1 Induces Immune Response and Antiviral Ability in Cherry Valley Ducks After Duck Plague Virus Infection."

Galectin-1, as a typical animal galactose-binding protein, it is found on the cell surface and in the extracellular matrix. Cloning the full-length coding sequence of galectin-1 from the spleens of Cherry Valley ducks revealed that the coding sequence of duck galectin-1 (duGal-1) comprises 405 bp, encoding 134 amino acids. Homologic analysis revealed its amino acid sequence is most identical to that of Anas platyrhynchos (98.8%) followed by Gallus gallus. Quantitative real-time PCR analysis indicated that duGal-1 mRNA is broadly expressed in healthy Cherry Valley duck tissues, primarily in the heart and trachea but minimally in the lung and skin. Meanwhile, the duGal-1 expression is slightly upregulated in the infected liver and spleen. Furthermore, the expression levels of ISGs (Mx, PKR, OAS) and some cytokines such as IFN-α, IL-1β, IL-2, are up-regulated to varying degrees after overexpression the duGal-1, In contrast, Knockdown of duGal-1 found that the expression levels of ISGs and some inflammatory cytokines were down-regulated. Antiviral assay showed that duGal-1 could inhibit viral replications early during infection. This is the first study of the cloning, tissue distribution, and antiviral immune responses of duGal-1, and findings imply it is involved in the early stages of antiviral innate immune responses to duck plague virus infections in ducks.

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Name: Developmental and comparative immunology
ISSN: 1879-0089
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