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Information Journal Paper

Title

Synthetic peptides mimicking lipopolysaccharide as a potential vaccine candidates against Vibrio cholerae serogroup O1

Pages

  244-250

Abstract

 Background and Objectives: Cholera is a life-threatening diarrhea caused mainly by Gram-negative marine habitant Vibrio cholerae serogroup O1. Cholera vaccination is limited mainly to developed countries, due to the cumbersome and expensive task of vaccine production. In the present work, the aim was to study the immunogenicity of the synthetic Mimotopes through two different routes of injection and oral administration. Lipopolysaccharide (LPS) is one of the immunogenic components in Gram-negative bacteria, which cannot be used as a vaccine candidate, due to its high toxic effect. Materials and Methods: Three phage-displayed selected Peptides, with high affinity to anti-LPS VHH tested in our previous study, were chemically synthesized and used as a potential vaccine candidate. In order to enhance the antigenic properties and safe delivery, these Peptides were conjugated to BSA as a carrier and encapsulated with PLGA. Peptides were injected intra-peritoneally or administered orally, alone or in combined form. Mice sera and feces were collected for assessment of humoral and mucosal antibody titers, respectively. ELISA plates were coated with Mimotope conjugates and V. cholerae, Shigella sonnei and ETEC were used as target antigens. Antibody titer was measured by adding IgG and IgA as primary antibodies. Results: Mice receiving three selected synthetic peptide conjugates (individually or in combination) showed higher antibody titer compared to control groups. The mice immunized with synthetic Peptides were protected against more than 15 LD50 of V. cholerae. Conclusion: These Peptides are mimicking LPS and can potentially act as vaccine candidates against V. cholerae.

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    APA: Copy

    Mohammad Pour Ghazi, Fatemeh, & MOUSAVI GARGARI, SEYED LATIF. (2017). Synthetic peptides mimicking lipopolysaccharide as a potential vaccine candidates against Vibrio cholerae serogroup O1. IRANIAN JOURNAL OF MICROBIOLOGY, 9(4), 244-250. SID. https://sid.ir/paper/315513/en

    Vancouver: Copy

    Mohammad Pour Ghazi Fatemeh, MOUSAVI GARGARI SEYED LATIF. Synthetic peptides mimicking lipopolysaccharide as a potential vaccine candidates against Vibrio cholerae serogroup O1. IRANIAN JOURNAL OF MICROBIOLOGY[Internet]. 2017;9(4):244-250. Available from: https://sid.ir/paper/315513/en

    IEEE: Copy

    Fatemeh Mohammad Pour Ghazi, and SEYED LATIF MOUSAVI GARGARI, “Synthetic peptides mimicking lipopolysaccharide as a potential vaccine candidates against Vibrio cholerae serogroup O1,” IRANIAN JOURNAL OF MICROBIOLOGY, vol. 9, no. 4, pp. 244–250, 2017, [Online]. Available: https://sid.ir/paper/315513/en

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