title: Development of chitosan conjugated DNA vaccine against nodavirus in Macrobrachium rosenbergii (De Man, 1879).
abstract: The protective efficacy of a DNA construct containing extra small virus antisense (XSVAS) gene of nodavirus encapsulated with chitosan nanoparticles (NPs) was investigated in giant freshwater prawn Macrobrachium rosenbergii (De Man, 1879). The delivery was carried out using oral and immersion methods. A plasmid concentration of 100 ng μL(-1) when conjugated with chitosan NPs was found to be more effective in increasing the survivability of the infected prawn. The particle mean size, zeta potential and loading efficiency percentage were 297 nm, 27 mV and 85%, respectively. The ability of the chitosan to form a complex with the plasmid was studied by agarose gel electrophoresis. The NPs were characterized by atomic force microscopy (AFM). Persistence study showed the presence of the DNA construct up to 30th day post-treatment. The oral treatment was found to be better than the immersion treatment for delivery of the chitosan-conjugated DNA construct. This is probably the first report on the delivery of nanoconjugated DNA construct in M. rosenbergii, against nodavirus.
authors.affiliation: Central Institute of Fisheries Education, Versova, Mumbai, India.
authors.forename: V L
authors.initials: VL
authors.lastname: Ramya
authors.forename: R
authors.initials: R
authors.lastname: Sharma
authors.forename: P
authors.initials: P
authors.lastname: Gireesh-Babu
authors.forename: S R
authors.initials: SR
authors.lastname: Patchala
authors.forename: A
authors.initials: A
authors.lastname: Rather
authors.forename: P C
authors.initials: PC
authors.lastname: Nandanpawar
authors.forename: S
authors.initials: S
authors.lastname: Eswaran
mesh_terms: D000818:Animals; D017756:Aquaculture; D048271:Chitosan / Q000008:administration & dosage / Q000009:adverse effects*; D018625:Microscopy, Atomic Force; D058726:Nanoconjugates / Q000008:administration & dosage / Q000009:adverse effects*; D030381:Nodaviridae / Q000235:genetics / Q000276:immunology*; D033541:Palaemonidae / Q000276:immunology* / Q000821:virology; D019444:Vaccines, DNA / Q000008:administration & dosage / Q000009:adverse effects; D014765:Viral Vaccines / Q000008:administration & dosage* / Q000009:adverse effects
chemical_list: D058726:Nanoconjugates; D019444:Vaccines, DNA; D014765:Viral Vaccines; D048271:Chitosan
keywords: DNA; Macrobrachium rosenbergii; chitosan; nodavirus