Article
作者: You, Weon-Kyoo ; Pradier, Laurent ; Stanimirovic, Danica B ; Kim, Donghwan ; Sung, Byungje ; Yun, Hyesu ; Sandhu, Jagdeep K ; Kim, Dongin ; Sardi, Sergio Pablo ; Tasdemir-Yilmaz, Ozge ; Dujardin, Simon ; Bonner, Julia Maeve ; Jung, Jinwon ; McInnis, John J ; Kayatekin, Can ; Shin, Jung-Won ; Tang, Yi ; Park, Jinyoung ; Lee, Sang Hoon ; Lee, Hyeran ; Ahn, Jinhyung ; Li, Yihang ; Hyeon, Sumin ; Mackness, Brian C ; Delaney, Christie E ; Rissman, Robert A ; Kwon, Seung-Hwan ; Haqqani, Arsalan S ; Star, Alexandra T ; Krishnan, Rajaraman ; An, Sungwon ; Yoo, Miran ; Spencer, Brian ; Kim, Donghwan B ; Song, Daehae
Parkinson's disease and multiple system atrophy are members of a class of devastating neurodegenerative diseases called synucleinopathies, which are characterized by the presence of alpha-synuclein (α-Syn) rich aggregates in the brains of patients. Passive immunotherapy targeting these aggregates is an attractive disease-modifying strategy, which must not only demonstrate target selectivity towards α-Syn aggregates, but also achieve appropriate brain exposure to have the desired therapeutic effect. Here we present preclinical data for SAR446159, a next-generation antibody for the treatment of synucleinopathies. SAR446159 is a bispecific antibody composed of an α-Syn-binding immunoglobulin and an engineered insulin-like growth factor receptor 1 binding single-chain variable fragment, acting as a shuttle to transport an antibody across the blood-brain barrier. SAR446159 binds tightly and preferentially to α-Syn aggregates and prevents their seeding capacity in vitro and in vivo. The binding properties of SAR446159 combined with its brain-shuttle technology make it a potent immunotherapeutic for treating synucleinopathies.