IgG Antibody Response Elicited by a Fully Synthetic Two-Component Carbohydrate-Based Cancer Vaccine Candidate with α-Galactosylceramide as Built-in Adjuvant

Xuguang Yin, Xiang-Zhao Chen, Wen-Mei Sun, Xiao-Shan Geng, Xiaokang Zhang, Jian Wang, Panpan Ji, Zhongyin Zhou, Dong Jae Baek, Guang‐Fu Yang,

Organic Letters · 2017 · 89 citations · 39 references

Concepts

Abstract

A fully synthetic self-adjuvanting cancer vaccine candidate was constructed through covalent conjugation of invariant natural killer T (iNKT) cell ligand α-galactosylceramide (αGalCer) with sialyl Tn (STn), a representative tumor-associated carbohydrate antigen (TACA). This two-component vaccine STn-αGalCer is devoid of antigenic peptide, featuring the well-defined structure with high simplicity. STn-αGalCer showed remarkable efficacy in inducing antibody class switching from IgM to STn-specific IgG. Subtypes of IgG antibody were primarily IgG1 and IgG3.

References

39