Journal of Medicinal Chemistry p. 1362 - 1372 (2019)
Update date:2022-08-12
Topics:
Abdelsamie, Ahmed S.
Herath, Steven
Biskupek, Yannik
B?rger, Carsten
Siebenbürger, Lorenz
Salah, Mohamed
Scheuer, Claudia
Marchais-Oberwinkler, Sandrine
Frotscher, Martin
Pohlemann, Tim
Menger, Michael D.
Hartmann, Rolf W.
Laschke, Matthias W.
Van Koppen, Chris J.
Current therapies of steroid hormone-dependent diseases predominantly alter steroid hormone concentrations (or their actions) in plasma, in target and nontarget tissues alike, rather than in target organs only. Targeted therapy through the inhibition of steroidogenic enzymes may pose an attractive alternative with much less side effects. Here, we describe the design of a nanomolar potent 17β-hydroxysteroid dehydrogenase type 2 (17β-HSD2) inhibitor (compound 15) and successful targeted intracrine therapy in a mouse bone fracture model. Blockade of 17β-HSD2 in bone is thought to increase intracellular estradiol (E2) and testosterone (T), which thereby inhibits bone resorption by osteoclasts and stimulates bone formation by osteoblasts, respectively. Administration of compound 15 in the mouse fracture model strongly increases the mechanical stability of the healing fractured bone because of a larger periosteal callus with newly formed bone without changing the plasma E2 and T concentrations. Steroidogenic 17β-HSD2 inhibition thus enables targeted intracrine therapy.
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