Abstract：
BACKGROUND:Rotaviruses cause diarrhea in infants and young children worldwide. Rotavirus outer capsid protein, VP7 is major neutralizing antigen that is important component of subunit vaccine to prevent rotavirus infection. Many efforts have been done to produce recombinant VP7 that maintain native characteristics. We used baculovirus expression system to produce rotavirus VP7 protein and to study its immunogenicity. METHODS:Simian rotavirus SA11 full-length VP7 ORF was cloned into a cloning plasmid and then the cloned gene was inserted into the linear DNA of baculovirus Autographa californica Nuclear Polyhedrosis Virus (AcNPV) downstream of the polyhedrin promoter by in vitro recombination reactions. The expressed VP7 in the insect cells was recognized by rabbit hyperimmune serum raised against SA11 rotavirus by Immunofluorescence and western blotting assays. Rabbits were immunized subcutaneously by cell extracts expressing VP7 protein. RESULTS:Reactivity with anti-rotavirus antibody suggested that expressed VP7 protein had native antigenic determinants. Injection of recombinant VP7 in rabbits elicited the production of serum antibodies, which were able to recognize VP7 protein from SA11 rotavirus by Western blotting test and neutralized SA11 rotavirus in cell culture. CONCLUSION:Recombinant outer capsid glycoprotein (VP7) of rotavirus expressed in insect cells induces neutralizing antibodies in rabbits and may be a candidate of rotavirus vaccine.
journal_name
Iran J Public Healthjournal_title
Iranian journal of public healthauthors
Khodabandehloo M,Shahrabadi MS,Keyvani H,Bambai B,Sadigh Zsubject
Has Abstractpub_date
2012-01-01 00:00:00pages
73-84issue
5eissn
2251-6085issn
2251-6093journal_volume
41pub_type
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journal_title：Iranian journal of public health
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journal_title：Iranian journal of public health
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pub_type： 杂志文章,评审
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