Fmoc-amino acid-based hydrogel vehicle for delivery of amygdalin to perform neuroprotection

Autor: Zhao-yu Yang, Yuan-yuan Zhong, Jun Zheng, Yilin Liu, Teng Li, En Hu, Xiao-fei Zhu, Ruo-qi Ding, Yao Wu, Yi Zhang, Tao Tang, Feng He, Shun-shun Wang, Yang Wang
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Smart Materials in Medicine, Vol 2, Iss , Pp 56-64 (2021)
Druh dokumentu: article
ISSN: 2590-1834
DOI: 10.1016/j.smaim.2020.10.004
Popis: Amygdalin is widely distributed in the plant kingdom. Oral delivery of amygdalin releases hydrogen cyanide upon endogenous enzymes causing potential toxic effects to humans. Here, we fabricate Fmoc-Tyr–OH–amygdalin hydrogel (FTOA) which represents L-tyrosine derived low molecular weight hydrogelator entrapping amygdalin. Fourier Transform Infrared Spectroscopy and the Fluorescent Emission Spectrum elucidated the complexation process between the amygdalin and Fmoc-Tyr-OH (FTO). Amygdalin was sustainably released from FTOA at different pH buffer. The rheological behavior similar to the brain supported that the hydrogel tended to be a preferable neural scaffold. Moreover, animal studies showed FTOA significantly promoted neural-functional recovery. This hydrogel achieved a great decrease in damage volume according to H&E staining. Additionally, we found that FTOA enhanced tissue recovery. Simultaneously, the released amygdalin gave a markedly neural inflammatory suppression. Taken together, this study highlights that Fmoc-based gelator encapsulate amygdalin forming a stable hydrogel to perform sustained-release and improve efficacy with minimal side effects.
Databáze: Directory of Open Access Journals