Galectins in channel catfish, Ictalurus punctatus: Characterization and expression profiling in mucosal tissues

Fish & Shellfish Immunology
Shun ZhouChao Li

Abstract

Galectins, a family of β-galactoside-binding lectins with conserved CRDs, which can recognize the glycans on the surface of viruses, bacteria and protozoan parasites, are emerging as key players in many important pathological processes, including acute and chronic inflammatory diseases, autoimmunity and apoptosis. Although galectins have attracted great interest in mammals, they are still poorly-characterized in teleost. Previously, several studies have reported their high expression levels in mucosal tissues before and post infection. Given the important roles for galectins in mucosal immunity, therefore, we characterized the galectin gene family and profiled family member expression after challenge with two different Gram-negative bacterial pathogens. Here, twelve galectins genes were captured in channel catfish (Ictalurus punctatus), and phylogenetic analysis showed the strongest relationship to zebrafish and salmon, which is consistent with their phylogenetic relationships. Furthermore, the galectin genes were widely expressed in catfish tissues, while most of the galectin genes were strongly expressed in mucosal tissues (skin, gill and intestine). In addition, the expression profiles of galectins after bacterial infection ...Continue Reading

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Citations

May 12, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Monica Fengsrud BrinchmannMartin Haugmo Iversen
Sep 14, 2018·Frontiers in Physiology·Tao ZhouZhanjiang Liu
Dec 13, 2019·Developmental and Comparative Immunology·Denghui ZhuYaping Wang

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