1. Academic Validation
  2. Synthesis and Antiosteoporotic Characterization of Diselenyl Maleimides: Discovery of a Potent Agent for the Treatment of Osteoporosis by Targeting RANKL

Synthesis and Antiosteoporotic Characterization of Diselenyl Maleimides: Discovery of a Potent Agent for the Treatment of Osteoporosis by Targeting RANKL

  • J Med Chem. 2024 Oct 10;67(19):17226-17242. doi: 10.1021/acs.jmedchem.4c01105.
Bin Li 1 Yao Wu 2 3 Linkun Ying 2 3 Weiwei Zhu 3 Jingyi Yang 4 Lingling Zhou 2 3 Lele Yi 2 3 Tianle Jiang 1 Haofu Jiang 1 Xiangrui Song 2 3 Weiwei Xue 4 Guang Liang 3 5 Shengbin Huang 1 Zengqiang Song 2 3
Affiliations

Affiliations

  • 1 Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, No. 373, Xueyuan West Road, Lucheng District, Wenzhou 325027, PR China.
  • 2 School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China.
  • 3 State Key Laboratory of Macromolecular Drugs and Large-scale Manufacturing, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China.
  • 4 School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China.
  • 5 School of Pharmacy, Hangzhou Medical College, Hangzhou 311399, Zhejiang, China.
Abstract

To discover new osteoclast-targeting antiosteoporosis agents, we identified forty-six diselenyl maleimides, which were efficiently prepared using a novel, simple, and metal-free method at room temperature in a short reaction time. Among them, 3k showed the most marked inhibition of osteoclast differentiation with an IC50 value of 0.36 ± 0.03 μM. Moreover, 3k significantly suppressed RANKL-induced osteoclast formation, bone resorption, and osteoclast-specific genes expression in vitro. Mechanistic studies revealed that 3k remarkably blocked the RANKL-induced mitogen-activated protein kinase (MAPK) and NF-κB signaling pathways. In ovariectomized mice, intragastric administration of 3k significantly alleviated bone loss, exhibiting an effect similar to that of alendronate. Surface plasmon resonance assay and microscale thermophoresis assay results suggested that RANKL might be a potential molecular target for 3k. Collectively, the findings presented above provided a novel candidate for further development of bone antiresorptive drugs that target RANKL.

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