Hapten Design and Monoclonal Antibody to Fluoroacetamide, a Small and Highly Toxic Chemical
作者:Ling Yang、Xiya Zhang、Dongshuai Shen、Xuezhi Yu、Yuan Li、Kai Wen、Jianzhong Shen、Zhanhui Wang
DOI:10.3390/biom10070986
日期:——
Fluoroacetamide (FAM) is a small (77 Da) and highly toxic chemical, formerly used as a rodenticide and potentially as a poison by terrorists. Poisoning with FAM has occurred in humans, but few reliably rapid detection methods and antidotes have been reported. Therefore, producing a specific antibody to FAM is not only critical for the development of a fast diagnostic but also a potential treatment
氟乙酰胺(FAM)是一种小型(77 Da)的剧毒化学品,以前用作杀鼠剂,并有可能被恐怖分子用作毒药。FAM中毒已在人类中发生,但几乎没有可靠的快速检测方法和解毒剂的报道。因此,产生针对FAM的特异性抗体不仅对快速诊断的发展至关重要,而且对潜在治疗也至关重要。但是,实现这一目标是一个巨大的挑战,主要是由于FAM的分子量非常低。在这里,我们首次设计了两组FAM半抗原,借助线性脂肪族或苯基间隔基臂最大限度地暴露了氟或氨基。有趣的是,在半抗原末端带有氟的半抗原并未诱导针对FAM的抗体反应,在远端带有氨基的半抗原和含苯基的间隔臂触发了明显的特异性抗体反应。最后,使用IC成功获得了名为5D11的单克隆抗体(mAb)50的值为97μgmL -1,与其他9个功能和结构类似物的交叉反应性可忽略不计。