Rational Design of Site-Specific Fatty Acid Derivatives to Extend the Half-Life of Fibroblast Growth Factor 21.

IF 4 2区 化学 Q1 BIOCHEMICAL RESEARCH METHODS Bioconjugate Chemistry Pub Date : 2025-03-14 DOI:10.1021/acs.bioconjchem.4c00549
Chengcheng Wang, Yapeng Wang, Yuanzhen Dong, Yu Duan, Ying Zhang, Hao Huang, Zhiru Xu, Jianguang Lu, Chunyong Ding, Zhengyan Cai, Dianwen Ju, Jun Feng
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引用次数: 0

Abstract

Fibroblast growth factor 21 (FGF21) is a crucial regulator of glucose and lipid metabolism, showing significant therapeutic promise for metabolic disorders. However, its clinical application is limited by poor pharmacokinetics. One potential strategy to improve its half-life is to facilitate albumin binding through fatty acid derivation. Despite this promise, achieving site-specific modifications of FGF21 while preserving its biological activity has been challenging. In this study, we applied a rational design approach to create site-specific fatty acid derivatives of FGF21, guided by the structure of the FGF21-receptor complex. This strategy successfully enhances albumin binding without interfering with receptor interactions. The modified FGF21 derivatives exhibited dramatically extended half-lives in mice, increasing from 0.73 h to 11.36 and 13.36 h, respectively. Furthermore, these analogues showed superior biological activity in the presence of albumin, outperforming the C-terminal-derived variant zalfermin. This rational design approach not only improves the pharmacokinetic profile of FGF21 but also provides a framework for enhancing the therapeutic potential of other small proteins.

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来源期刊
Bioconjugate Chemistry
Bioconjugate Chemistry 生物-化学综合
CiteScore
9.00
自引率
2.10%
发文量
236
审稿时长
1.4 months
期刊介绍: Bioconjugate Chemistry invites original contributions on all research at the interface between man-made and biological materials. The mission of the journal is to communicate to advances in fields including therapeutic delivery, imaging, bionanotechnology, and synthetic biology. Bioconjugate Chemistry is intended to provide a forum for presentation of research relevant to all aspects of bioconjugates, including the preparation, properties and applications of biomolecular conjugates.
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