In this project we determined antigenic relationships based on VP4 and VP7 neutralization specificities of various rotavirus strains derived from humans and animals. The elucidation of the neutralization specificities of rotavirus is important in order to achieve a more comprehensive understanding of rotavirus epidemiology and for formulation of an effective strategy for vaccination. By using various single gene substitution human x human or human x bovine rotavirus reassortants and hyperimmune guinea pig antiserum raised against each reassortant, we successfully characterized the VP4 neutralization specificity of representative human rotavirus strains (Wa, P, WI61, DS- 1, M37, ST3, PA151, K8, 59M, 69M, HCR3, Ro1845, PA169, and HAL1166) and established seven distinct VP4 (P) serotypes based on a greater than 20-fold antibody difference criterion that is applied to classification of VP7 serotypes.The VP4 of murine rotavirus strains EB and EW has been shown to carry neutralization specificities distinct from the eleven established P serotypes. - rotavirus, infantile diarrhea, vaccine, serotype, VP4 and VP7

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Intramural Research (Z01)
Project #
1Z01AI000339-18
Application #
6288828
Study Section
Special Emphasis Panel (LID)
Project Start
Project End
Budget Start
Budget End
Support Year
18
Fiscal Year
1999
Total Cost
Indirect Cost
City
State
Country
United States
Zip Code
Ross, Jerri; Ostlund, Eileen N; Cao, Dianjun et al. (2008) Acrylamide concentration affects the relative position of VP7 gene of serotype G2 strains as determined by polyacrylamide gel electrophoresis. J Clin Virol 42:374-80
Cao, Dianjun; Santos, Norma; Jones, Ronald W et al. (2008) The VP7 genes of two G9 rotaviruses isolated in 1980 from diarrheal stool samples collected in Washington, DC, are unique molecularly and serotypically. J Virol 82:4175-9
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Honma, Shinjiro; Chizhikov, Vladimir; Santos, Norma et al. (2007) Development and validation of DNA microarray for genotyping group A rotavirus VP4 (P[4], P[6], P[8], P[9], and P[14]) and VP7 (G1 to G6, G8 to G10, and G12) genes. J Clin Microbiol 45:2641-8
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Hoshino, Yasutaka; Honma, Shinjiro; Jones, Ronald W et al. (2006) A rotavirus strain isolated from pig-tailed macaque (Macaca nemestrina) with diarrhea bears a P6[1]:G8 specificity. Virology 345:1-12
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Santos, Norma; Volotao, Eduardo M; Soares, Caroline C et al. (2005) Predominance of rotavirus genotype G9 during the 1999, 2000, and 2002 seasons among hospitalized children in the city of Salvador, Bahia, Brazil: implications for future vaccine strategies. J Clin Microbiol 43:4064-9
Kapikian, Albert Z; Simonsen, Lone; Vesikari, Timo et al. (2005) A hexavalent human rotavirus-bovine rotavirus (UK) reassortant vaccine designed for use in developing countries and delivered in a schedule with the potential to eliminate the risk of intussusception. J Infect Dis 192 Suppl 1:S22-9
Hoshino, Yasutaka; Jones, Ronald W; Ross, Jerri et al. (2005) Porcine rotavirus strain Gottfried-based human rotavirus candidate vaccines: construction and characterization. Vaccine 23:3791-9

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