作者:Vincent Huynh、Ryan G. Wylie
DOI:10.1002/anie.201713428
日期:2018.3.19
three‐component drug‐delivery system was developed for competitive affinity release of a streptavidin–antibody conjugate from agarose–desthiobiotin hydrogels via controlled dissolution of sparingly soluble biotin derivatives. The antibody conjugate was localized in the hydrogel through streptavidin–desthiobiotin complexation. Dissolution of sparingly soluble biotin derivatives disrupts streptavidin–desthiobiotin
随着临床上抗体使用的增加,需要长期的给药策略以减少注射频率并改善健康状况。通过控制微溶性生物素衍生物的溶解,开发了一种三组分药物递送系统,用于竞争性地从琼脂糖-脱硫生物素水凝胶中释放链亲和素-抗体偶联物。抗体偶联物通过链霉亲和素-脱硫生物素复合物定位在水凝胶中。难溶的生物素衍生物的溶解破坏了抗生物素蛋白链菌素-脱硫生物素的复合物,从而控制了抗体偶联物的释放。通过改变总生物素衍生物的浓度来调节释放,而无需进一步的水凝胶或抗体修饰。一阶可调释放的生物活性Avastin,一种治疗性抗VEGF抗体,