PT - JOURNAL ARTICLE AU - Alamri, Mubarak A. TI - Development of a candidate multi-epitope vaccine against <em>Sphingobacterium spiritivorum</em> AID - 10.15537/smj.2023.44.6.20220733 DP - 2023 Jun 01 TA - Saudi Medical Journal PG - 544--559 VI - 44 IP - 6 4099 - http://smj.org.sa/content/44/6/544.short 4100 - http://smj.org.sa/content/44/6/544.full SO - Saudi Med J2023 Jun 01; 44 AB - Objectives: To develop a candidate vaccine aginst the Sphingobacterium spiritivorum.Methods: Since there is currently no vaccine against this pathogen, we employed in-silico methods to extensively explore the outer membrane toxin-producing proteins found specifically in S. spiritivorum to forecast a multi-epitope chimeric vaccine design. This computational study was conducted in Saudi Arabia in 2022 (study design: computational; ethical approval not applicable).Results: TThe vaccine peptide comprises multiple linear and conformational B-cell epitopes, which have the potential to elicit humoral immunity. Projected B-cell- derived T-cell epitopes for outer membrane proteins are present in the produced protein. The docking and molecular dynamic simulation results indicating that the chimeric vaccine had adequate binding stability with TLR-4. Following the immunological simulation, significant levels of immune cell expression were observed as immunoglobulin (Ig) M and IgG, IgM, IgM1, and IgM2, and independently IgG1 and IgG2.Conclusion: The developed vaccine candidate is suitable for further testing and can assist experimental vaccinologists in developing an effective vaccine against S. spiritivorum.