Abstract
β-adrenergic receptors (β-ARs) are broadly distributed in various tissues and regulate a panel of important physiological functions and disease states including cancer. Above all, β3-adrenergic receptor (β3-AR) plays a significant role in regulating lipolysis and thermogenesis in adipose tissue. In this study, we designed and synthesized a series of novel L-748,337 derivatives as selective human β3-AR antagonists. Among all the tested L-748,337 analogs, compound 23d was found to display 23-fold more potent β3-AR antagonist activity (EC50 = 0.5117 nM) than L-748,337 (EC50 = 11.91 nM). In vivo, compound 23d could alleviate weight loss and inhibit tumor growth in C26 tumor cachexia animal model.
Keywords:
Antagonist; Cancer; Lipolysis and cachexia; β-Adrenergic receptor.
Copyright © 2018 Elsevier Masson SAS. All rights reserved.
MeSH terms
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3T3-L1 Cells
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Adipose Tissue / drug effects
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Adipose Tissue / metabolism
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Adrenergic Antagonists / chemical synthesis
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Adrenergic Antagonists / chemistry
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Adrenergic Antagonists / pharmacology*
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Animals
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Cell Proliferation / drug effects
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Disease Models, Animal
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Dose-Response Relationship, Drug
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Drug Design*
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Drug Screening Assays, Antitumor
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Humans
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Lipolysis / drug effects*
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Male
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Mice
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Mice, Inbred BALB C
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Molecular Structure
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Neoplasms / drug therapy*
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Neoplasms / metabolism
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Neoplasms, Experimental / drug therapy
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Neoplasms, Experimental / metabolism
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Neoplasms, Experimental / pathology
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Propanolamines / chemical synthesis
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Propanolamines / chemistry
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Propanolamines / pharmacology*
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Receptors, Adrenergic, beta-3 / metabolism*
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Structure-Activity Relationship
Substances
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Adrenergic Antagonists
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Propanolamines
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Receptors, Adrenergic, beta-3
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oxypropanolamine