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VSA-2

Vaxjo ID 207       
Vaccine Adjuvant Name VSA-2       
Adjuvant VO ID VO_0005325
Description A vaccine adjuvant that is synthesized by derivatizing a natural Momordica saponin in one step. VSA-2 is chemically stable. VSA-2 is much less toxic than QS-21. VSA-2 is more Th1-biased than QS-21. Momordica saponins are isolated from widely available and sustainable source       
Stage of Development Research       
Location Licensed US (U of Alabama:Birmingham)       
Host Species for Testing Mouse       
Components Momordica saponins       
Storage 4C       
Preparation incorporating a terminal-functionalized side chain to the branched trisaccharide domain at the C3 position of Momordica saponin II (MS II) isolated from the seeds of perennial Momordica cochinchinensis Spreng       
Function innate immune activation       
References
(Wang, 2024): Vaccine Adjuvant Compendium - VAC [https://vac.niaid.nih.gov/view?id=42]
Kim et al., 2022: Kim H, Bai D, Ghosh S, Franks ML, Wang X, Yan C, Liu Z, Zhang P, Michalek SM, Leavenworth JW, Wang P. Structure-Activity Relationship Study of Momordica Saponin II Derivatives as Vaccine Adjuvants. Journal of medicinal chemistry. 2022; 65(21); 14589-14598. [PubMed: 36318612].
Wang et al., 2020: Wang P, Ding X, Kim H, Michalek SM, Zhang P. Structural Effect on Adjuvanticity of Saponins. Journal of medicinal chemistry. 2020; 63(6); 3290-3297. [PubMed: 32101001].