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Updated: Jun 23, 2026

Modeling Paracrine Noncanonical Wnt Signaling In Vitro
Published on: December 10, 2021
Synthesis and structure-activity relationships of radicicol derivatives and WNT-5A expression inhibitory activity
Hideki Shinonaga1, Toshiya Noguchi, Akiko Ikeda
1Medicinal Chemistry Laboratories, Taisho Pharmaceutical Co, Ltd, Saitama-shi, Saitama, Japan. h.shinonaga@po.rd.taisho.co.jp
Abstract:
WNT-5A, a secretory glycoprotein, is related to the proliferation of dermal papilla cells. To develop a hair-growth stimulant, we have been searching for inhibitors of WNT-5A expression. We identified radicicol (1) as an active compound, and synthesized several radicicol derivatives. Among them, 6,7-dihydro-10alpha-hydroxy radicicol (31) was found to function as a new potent WNT-5A expression inhibitor with relatively low toxicity and excellent stability.
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