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Chen Z, Encarnacion AM, Rajan RPS, Yao H, Lee S, Kim E, Lee TH. Discovery of a novel homoisoflavonoid derivative 5g for anti-osteoclastic bone loss via targeting FGFR1. Eur J Med Chem 2024; 270:116335. [PMID: 38555854 DOI: 10.1016/j.ejmech.2024.116335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/29/2024] [Accepted: 03/05/2024] [Indexed: 04/02/2024]
Abstract
Several flavonoids have been shown to exert anti-osteoporosis activity. However, the structure-activity relationship and the mechanism of anti-osteoporosis activity of flavonoids remain unknown. In this study, we prepared a series of novel homoisoflavonoid (HIF) derivatives to evaluate their inhibitory effects on osteoclastogenesis using TRAP-activity in vitro assay. Then, the preliminary structure-activity relationship was studied. Among the evaluated novel flavonoids, derivative 5g exerted the most inhibitory bioactivity on primary osteoclast differentiation without interfering with osteogenesis. It was hence selected for further in vitro, in vivo and mechanism of action investigation. Results show that 5g likely directly binds to the fibroblast growth factor receptor 1 (FGFR1), decreasing the activation of ERK1/2 and IκBα/NF-κB signaling pathways, which in turn blocks osteoclastogenesis in vitro and osteoclastic bone loss in vivo. Our study shows that homoisoflavonoid (HIF) derivatives 5g can serve as a potential novel candidate for treating osteoporosis via inhibition of FGFR1.
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Affiliation(s)
- Zhihao Chen
- Department of Oral Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Alessandra Marie Encarnacion
- Department of Interdisciplinary Program of Biomedical Engineering, School of Dentistry, Chonnam National University, Gwangju, 61186, Republic of Korea
| | | | - Hongyuan Yao
- Department of Interdisciplinary Program of Biomedical Engineering, School of Dentistry, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Sunwoo Lee
- Department of Chemistry, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Eunae Kim
- Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju, 61452, Republic of Korea; Host-directed Antiviral Research Center, College of Veterinary Medicine, Chonnam National University, Gwangju, 61186, Republic of Korea.
| | - Tae-Hoon Lee
- Department of Oral Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, 61186, Republic of Korea.
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