4.7 Article

Blockade of CXXC5-dishevelled interaction inhibits adipogenic differentiation, obesity, and insulin resistance in mice

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SCIENTIFIC REPORTS
卷 12, 期 1, 页码 -

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NATURE PORTFOLIO
DOI: 10.1038/s41598-022-25315-x

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  1. National Research Foundation (NRF), the Ministry of Information and Science and ICT of Korea [2019R1A2C3002751, 2020M3E5E2040018]
  2. BK21 PLUS program
  3. National Research Foundation of Korea [2020M3E5E2040018, 2019R1A2C3002751] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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Obesity is closely associated with metabolic diseases, and the Wnt/beta-catenin signaling pathway plays a crucial role in adipogenesis and obesity. Inhibiting the interaction of CXXC5 and Dvl to activate this pathway may be a potential therapeutic approach for treating obesity and insulin resistance.
Obesity has become a major risk factor for developing metabolic diseases, including insulin resistance, type 2 diabetes, and hypertension. Growing pieces of evidence indicate that the Wnt/beta-catenin signaling pathway plays an important role in adipogenesis and obesity. Activation of the Wnt/beta-catenin signaling pathway inhibits adipogenesis by suppressing the differentiation of committed preadipocytes into mature adipocytes. CXXC5 is highly induced with suppression of Wnt/beta-catenin signaling in early adipogenic differentiation. In addition, silencing CXXC5 in vitro increased beta-catenin and decremented the major adipogenic differentiation markers. KY19334, a small molecule that activates the Wnt/beta-catenin pathway via inhibition of CXXC5- Dishevelled (Dvl) protein-protein interaction (PPI), suppressed adipogenic differentiation. Administration of KY19334 ameliorated obesity by 26 +/- 1.3% and insulin resistance by 23.45 +/- 7.09% and reduced adipocyte hypertrophy by 80.87 +/- 5.30% in high-fat diet (HFD)-fed mice. In addition, KY19334 accelerated the browning of adipose tissue and promoted hepatic glucose homeostasis in HFD-fed mice. In conclusion, activation of the Wnt/beta-catenin signaling by inhibiting the interaction of CXXC5 and Dvl by small molecule-mediated interference is a potential therapeutic approach for treating obesity and insulin resistance.

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