Chemoenzymatic synthesis of arabinomannan (AM) glycoconjugates as potential vaccines for tuberculosis
作者:Zhihao Li、Teodora Bavaro、Sara Tengattini、Roberta Bernardini、Maurizio Mattei、Francesca Annunziata、Richard B. Cole、Changping Zheng、Matthieu Sollogoub、Lucia Tamborini、Marco Terreni、Yongmin Zhang
DOI:10.1016/j.ejmech.2020.112578
日期:2020.10
several TB-infected patients, in order to evaluate the affinity of the glycoconjugate products for the human LAM-antibodies. The evaluation results are positive, especially compound 21 that exhibited excellent activity which could be considered as a lead compound for the future development of a new glycoconjugated vaccine against TB.
导致结核病(TB)的分枝杆菌感染是2018年全球死亡的十大主要死因之一,脂质阿拉伯甘露聚糖(LAM)已被证实是TB细胞表面最重要的抗原多糖。在这项研究中,已经开发了一种方便的合成方法,用于合成三种衍生自LAM的支链低聚糖,其中通过流化酶水解制备核心构件,收率很高。经过数个糖基化步骤后,将获得的寡糖与重组人血清白蛋白(rHSA)和离体抗体偶联为了评估糖结合产物对人LAM抗体的亲和力,使用了从数名受TB感染的患者那里获得的血清进行ELISA测试。评价结果是肯定的,尤其是化合物21表现出优异的活性,可以被认为是未来针对结核病的新的糖缀合物疫苗研发的先导化合物。