A screening platform based on epitope editing for drug discovery
Zhu, B.; Yang, J.; Van, R.; Ran, K.; Yin, K.; Liang, Y.; Shen, N.; Yin, W.; Choi, S. H.; Lu, Y.; Wang, C.; Shao, Y.; Tanzi, R. E.; Zhang, C.; Cheng, Y.; Zhang, Z.; Ran, C.
Show abstract
The interaction between an antibody and its epitope has been daily utilized in various biological studies; however it has been rarely explored whether small molecules can alter the interaction. We discovered that small molecules could alter/edit surface properties of amyloid beta (A{beta}) epitopes, and consequently inhibit or enhance corresponding antibody recognition. Remarkably, this editing effect could generate functional changes including protein aggregation behaviors, cell cytokine secreting and in vivo microglia activation. According to this discovery, we proposed a screen platform based on epitope editing for drug discovery (SPEED). With a small library of compounds, we validated that SPEED could be used to seek new leads for A{beta} species. We also demonstrated that this platform could potentially be extended to other targets including tau protein and PD-L1 protein. The SPEED is a simple, fast and label-free screening method. We believe that the SPEED strategy could be universally applicable for seeking and validating drug candidates and imaging ligands.
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