IWP-4 is a small molecule Wnt inhibitor with an IC₅₀ of 25 nM.

IC50: 25 nM (Wnt)^[1]

IWP-4 is a small molecule Wnt inhibitor with an IC₅₀ of 25 nM. IWP-4 induces the expression of cardiac markers, including cardiac troponin I (CTNI) and cardiac myosin heavy chain bright cells (MYH^{hi +}). IWP-4 also results in the appearance of beating foci (0.44±0.10 SEM beats per second), which is absent in all cultures not receiving IWP-4. Further, flow cytometric analysis shows that there are significantly more MYH^{lo +} cells in IWP-4 treated cultures (P<0.0002) compare with untreated cultures at day 16, being 17.0±1.3 SD% and 5.4±1.4 SD%, respectively. Quantification of NKX2-5 protein expression shows that 63% (481/817) of IWP-4 treated cells display nuclear NKX2-5 expression^[1]. Mesenchymal precursor cells (MPCs) treated with IWP-4 show no significant changes in the expression of AXIN2, CTNNB1 and GSK3B as compare to osteogenic medium alone on day 7, but MPCs treated with IWP-4 express elevates levels of DKK1 and GSK3β on day 21. IWP-4 also causes a significant down regulation of SPARC and COL1A1^[2].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

496.62

C₂₃H₂₀N₄O₃S₃

686772-17-8

Room temperature in continental US; may vary elsewhere.

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	6 months
	-20°C	1 month

In Vitro: 

DMSO : 1.3 mg/mL (2.62 mM; Need ultrasonic)

*

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80°C, 6 months; -20°C, 1 month。-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。

• [1]. Hudson J, et al. Primitive cardiac cells from human embryonic stem cells. Stem Cells Dev. 2012 Jun 10;21(9):1513-23.

  [2]. Frith JE, et al. Microbioreactor array screening of Wnt modulators and microenvironmental factors in osteogenic differentiation of mesenchymal progenitor cells. PLoS One. 2013 Dec 23;8(12):e82931.

hESC cultures are obtained in mTeSR-1 medium and expanded with daily medium exchange until colonies reach the desired level of confluence (~70% to 80%). At this time (marked day 0), mTeSR-1 is replaced with a basal medium comprised of RPMI 1640 medium supplemented with 2% B27 supplement and 1% penicillin/streptomycin. 20 ng/mL BMP-4 and/or 6 ng/mL activin A are added to the basal medium for primitive streak induction, and exchanged daily until day 3. Then, basal media with or without 5 mM IWP-4 is added to the cells and exchanged every 2 days [dimethyl sulfoxide (DMSO) at the same concentration is used as a vehicle control] until day 15, after which basal medium is supplied every 2 days^[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

• [1]. Hudson J, et al. Primitive cardiac cells from human embryonic stem cells. Stem Cells Dev. 2012 Jun 10;21(9):1513-23.

  [2]. Frith JE, et al. Microbioreactor array screening of Wnt modulators and microenvironmental factors in osteogenic differentiation of mesenchymal progenitor cells. PLoS One. 2013 Dec 23;8(12):e82931.