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Nitric oxide synthase-dependent immune response against gram negative bacteria in a crustacean, Litopenaeus vannamei

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URI: http://hdl.handle.net/10498/20380

DOI: 10.1016/j.fsi.2016.01.019

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2016-Nitric oxide synthase-dependent immune response against gram negative bacteria in a crustacean, Litopenaeus vannamei.pdf (785.2Kb)
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Author/s
Rodríguez-Ramos, Tania; Carpio, Yamila; Gómez, Leonardo; Estrada, Mario Pablo; Bolívar Pérez, JorgeAuthority UCA; Pendón Meléndez, CarlosAuthority UCA
Date
2016-01
Department
Bioquímica y Biología Molecular, Microbiología, Medicina Preventiva, Salud Pública
Source
Fish & Shellfish Immunology 50 (2016) 50e55
Abstract
Nitric oxide (NO) is a short-lived radical generated by nitric oxide synthases (NOS). NO is involved in a variety of functions in invertebrates, including host defense. In previous studies, we isolated and sequenced for the first time the NOS gene from hemocytes of Panulirus argus, demonstrating the inducibility of this enzyme by lipopolysaccharide in vitro e in vivo. Hyperimmune serum was obtained from rabbits immunized with a P. argus eNOS fragment of 31 kDa produced in Escherichia coli, which specifically detected the recombinant polypeptide and the endogenous NOS from lobster hemocytes by western blotting and immunofluorescence. In the present work, we demonstrate that the hyperimmune serum obtained against P. argus NOS also recognizes Litopenaeus vannamei NOS in hemocytes by western blotting and immunofluorescence. Our data also show that while the hemolymph of L. vannamei has a strong antibacterial activity against the Gram negative bacteria Aeromonas hydrophila, the administration of the anti NOS serum reduce the natural bacterial clearance. These results strongly suggest that NOS is required for the shrimp immune defense toward Gram negative bacteria. Therefore, the monitoring of induction of NOS could be an important tool for testing immunity in shrimp farming.
Subjects
Aeromonas hydrophila; Invertebrate immunity; Nitric oxide synthase; Litopenaeus vannamei; NOS
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  • Artículos Científicos [4216]
  • Articulos Científicos Biomedicina [171]
  • Artículos Científicos INBIO [242]
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
This work is under a Creative Commons License Attribution-NonCommercial-NoDerivatives 4.0 Internacional

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