2. Academic Validation
  3. Discovery of PMSA Derivative 11 as a Novel Lead Compound for Therapeutic Treatment of Osteoporosis In Vitro and In Vivo

Discovery of PMSA Derivative 11 as a Novel Lead Compound for Therapeutic Treatment of Osteoporosis In Vitro and In Vivo

  • J Med Chem. 2023 May 25;66(10):6766-6781. doi: 10.1021/acs.jmedchem.3c00114.
Zhihao Chen 1,  Karthik Rajan Rajamanickam 2,  Mina Ding 1,  Sang Kyoon Kim 3,  Sang-Wook Park 4,  Eunae Kim 5,  Sunwoo Lee 2,  Tae-Hoon Lee 4
Affiliations

Affiliations

  • 1 BioMedical Sciences Graduate Program (BMSGP), Chonnam National University, Gwangju 61186, Republic of Korea.
  • 2 Department of Chemistry, Chonnam National University, Gwangju 61186, Republic of Korea.
  • 3 Preclincial Research Center (PRC), Daegu-Gyeongbuk Medical Innovation Foundation (K-MEDI hub), Daegu 41061, Republic of Korea.
  • 4 Department of Oral Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea.
  • 5 College of Pharmacy, Chosun University, Gwangju 61452, Republic of Korea.
PMID: 37151031 DOI: 10.1021/acs.jmedchem.3c00114
Abstract

To discover a potent candidate for suppressing mature osteoclasts formation in vitro using a TRAP staining assay. A series of PMSA derivatives were synthesized and evaluated for their bioactivity in our current study. Our results showed that PMSA derivative 11 exhibited the most promising bioactivity, with an IC50 value of 322.9 nM, which was ∼15-fold better than PMSA-3-Ac in suppressing osteoclastogenesis in vitro. Additionally, 11 blocked the formation of F-action belts and bone resorption in a concentration-dependent manner. Mechanistically, 11 decreased the expression of genes required for osteoclastogenesis by blocking NFATc1 translocation from the cytoplasm to nucleus. Furthermore, 11 demonstrated a therapeutic inhibitory effect on the differentiation of human iPSC-derived primary osteoclasts. In vivo investigation showed that 11 prevented excessive osteoclastogenesis-mediated bone loss in ovariectomized osteoporosis mimic mice. These findings highlighted the therapeutic potential of 11 as a lead compound for anti-osteoporosis by targeting NFATc1 translocation.

Figures
Products