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. 2021 Aug:275:120900.
doi: 10.1016/j.biomaterials.2021.120900. Epub 2021 May 18.

An antibody-like peptidic network for anti-angiogenesis

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An antibody-like peptidic network for anti-angiogenesis

Kuo Zhang et al. Biomaterials. 2021 Aug.

Abstract

Different from chemical (small molecular inhibitor) and biological (monoclonal antibody) drugs, herein, based on angiogenesis-related neuropilin-1 (NRP-1), we develop a biomimetic superstructure drug, i.e. an antibody-like peptidic network (ALPN) to achieve the high-efficient treatment of choroidal neovascularization (CNV). The ALPN in nanoparticulated formulation (ALPN-NPS) can bind NRP-1 through targeting unit and form fibrous peptidic networks trapping NRP-1 on the surface of endothelial cells (ECs), leading to anti-angiogenesis. The ALPN shows high-efficacy against angiogenesis in CNV rat model ascribed to the superstructure-enhanced binding and blockage of NRP-1. The very low dose of ALPN (0.263 μg/Kg) exhibits similar anti-angiogenesis effect comparing with monoclonal antibody bevacizumab (23.5 μg/Kg), which shows potential advantages over traditional monoclonal antibodies.

Keywords: Angiogenesis; Antibody; Biomimetic; Peptide; Self-assembly.

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