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Vibegron shows high selectivity and potent agonist activity for β3-adrenoceptors, irrespective of receptor density

Yamamoto, Shota, Kusabuka, Hotaka, Matsuzawa, Akane, Maruyama, Itaru, Yamazaki, Takanobu·2023·PLOS ONE

Abstract

β3-Adrenoceptor (AR) agonists are used to treat patients with an overactive bladder (OAB). Clinical proof-of-concept data have been obtained for the β3-AR agonists vibegron, mirabegron, solabegron, and ritobegron; however, the selectivities of these agents have not been compared directly under the same experimental conditions. Moreover, the bladders of some patients express lower β3-AR densities than those of healthy individuals, and the β3-AR density might be expected to affect agonist activity. This study assessed the β3-AR selectivities of four β3-AR agonists and examined the effects of β-AR density on their pharmacological profiles. Functional cellular assays were performed using Chinese hamster ovary-K1 cells expressing three human β-AR subtypes transfected with different amounts of plasmid DNA (0.1, 0.05, 0.025 μg/well). The half-maximal effective concentration values, intrinsic activities (IAs), and β3-AR selectivities of vibegron, mirabegron, solabegron, and ritobegron were calculated to assess their pharmacological profiles. The β3-AR selectivities of vibegron, mirabegron, solabegron, and ritobegron were >7937-, 517-, 21.3-, and >124-fold higher than for β1-ARs, and >7937-, 496-, >362- and 28.1-fold higher than for β2-ARs, respectively, under the same experimental conditions. The IAs of mirabegron, solabegron, and ritobegron decreased in line with decreasing receptor density, while the IA of vibegron was maintained at the same level as that of the full agonist isoproterenol at various β3-AR densities. Vibegron has high β3-AR selectivity and exhibits full agonist activity, regardless of the β3-AR density. These results suggest that vibegron is a highly effective and safe drug for treating OAB.

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Cited by 13

Research works printed but not linked: 33

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Metadata

Authors
Yamamoto, S., Kusabuka, H., Matsuzawa, A., Maruyama, I., & Yamazaki, T.
Venue
PLOS ONE
Published
2023-09-01
Volume
18
Issue
9
Pages
e0290685
ISSN
1932-6203
Cited by
13
Language
en
Funders
  • Kissei Pharmaceutical Co., Ltd.
  • Kyorin Pharmaceutical Co., Ltd.

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CoChat. (2026). Citation check: Vibegron shows high selectivity and potent agonist activity for β3-adrenoceptors, irrespective of receptor density. https://app.cochat.ai/papers/10.1371/journal.pone.0290685
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Yamamoto, S., Kusabuka, H., Matsuzawa, A., Maruyama, I., & Yamazaki, T. (2023). Vibegron shows high selectivity and potent agonist activity for β3-adrenoceptors, irrespective of receptor density. PLOS ONE. https://doi.org/10.1371/journal.pone.0290685

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