QS-21

Names

[ Name ]:
QS-21

[Synonym ]:
61H83WZX3U

Biological Activity

[Description]:

QS-21, an immunostimulatory saponin, could be used as a potent vaccine adjuvant. QS-21 stimulates Th2 humoral and Th1 cell-mediated immune responses through action on antigen presenting cells (APCs) and T cells. QS-21 can activate the NLRP3 inflammasome with subsequent release of caspase-1 dependent cytokines, IL-1β and IL-18[1][2][3].

[Related Catalog]:

Signaling Pathways >> Immunology/Inflammation >> NOD-like Receptor (NLR)

Research Areas >> Inflammation/Immunology

[Target]

NLRP3 inflammasome

[In Vivo]

Studies in mouse APCs (DCs and macrophages) identifie QS-21 as an activator of the NLRP3 inflammasome, and cause subsequent release of caspase-1 dependent proinflammatory cytokines I1-1β/I1-18 that can promote Th 17 cell maturation or drive INF-γ-mediated Th1 responses, respectively[3].

[References]

[1]. Fernández-Tejada A, et al. Development of Improved Vaccine Adjuvants Based on the Saponin Natural Product QS-21 through Chemical Synthesis. Acc Chem Res. 2016;49(9):1741-1756.

[2]. Marty-Roix R, et al. Identification of QS-21 as an Inflammasome-activating Molecular Component of Saponin Adjuvants. J Biol Chem. 2016;291(3):1123-1136

[3]. Lacaille-Dubois MA. Updated insights into the mechanism of action and clinical profile of the immunoadjuvant QS-21: A review. Phytomedicine. 2019;60:152905.

Chemical & Physical Properties

[ Molecular Formula ]:
C₉₂H₁₄₈O₄₆

[ Molecular Weight ]:
1990.13

Safety Information

[ Hazard Codes ]:
Xi

Related Compounds

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.