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. 2017 May 11;7:1749. doi: 10.1038/s41598-017-01866-2

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© The Author(s) 2017

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Stimulation of Wnt-signaling increases the expression of WISP1 and inhibits adipocyte differentiation. 3T3-F442A preadipocytes were exposed to MDI media supplemented with 25 mM Lithium Chloride (LiCl) or, as negative control, 25 mM Sodium Chloride (NaCl). (a) Gene expression of WISP1, PPARG, and ADIPOQ were measured by real-time PCR. The values indicate the changes in the indicated sample compared to day 0. (b) The secretion of WISP1 following activation of Wnt signaling was determined by ELISA. The concentration of WISP1 is indicated as the ratio of LiCl-treated compared to the corresponding NaCl-treated sample. (c) 3T3-F442A preadipocytes at two days post confluence were treated with or without TNF-α at the indicated concentrations. After 24 hours, total RNA was isolated and the expression of WISP1 and ADIPOQ was analyzed by real-time PCR. The values indicate the changes for the indicated sample compared to the vehicle. All values are representative of data from 3 independent experiments each performed in duplicate. Results are presented as means ± SEM *p < 0.05; **p < 0.01; ***p < 0.005.