10mM in DMSO for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at -80°C Ships Dry ice packs + Cold packs Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Information
SIS3 HCl SIS3, a novel specific inhibitor of Smad3 , inhibits TGF-β and activin signaling by suppressing Smad3 phosphorylation without affecting the MAPK/p38, ERK, or PI3-kinase signaling pathways.
In vitro
Addition of SIS3 attenuates the effects of TGF-β1 by reducing the transcriptional activity. SIS3 also inhibits the myofibroblast differentiation of fibroblasts by TGF-β1. SIS3 completely diminishes the constitutive phosphorylation of Smad3 as well as the up-regulated type I collagen expression in scleroderma fibroblasts, thus abolishes the ECM overexpression in the TGF-β1-treated normal dermal fibroblasts and scleroderma fibroblasts in vitro.
In vivo
SIS3 inhibits Smad3 activation in streptozotocin(STZ)-induced diabetic nephropathy in Tie2-Cre;Loxp-EGFP mice. It also reduces AGE-induced EndoMT and decreases EndoMT in STZ-induced diabetic nephropathy in Tie2-Cre;Loxp-EGFP mice. SIS3 significantly reduces collagen IV and fibronectin expression in the glomeruli and tubulointerstitium of STZ-injected Tie2-Cre;Loxp-EGFP mice, suggesting that SIS3 retards the early development of STZ-induced diabetic glomerulosclerosis and tubulointerstitial fibrosis. However, SIS3 administration does not reduce proteinuria.
Cell Data
cell lines：
Concentrations：0.3, 1, 3 μM
Incubation Time：72 h
Powder Purity:≥97%
| Isomeri SMILES | CN1C(=C(C2=C1N=CC=C2)/C=C/C(=O)N3CCC4=CC(=C(C=C4C3)OC)OC)C5=CC=CC=C5.Cl |
|---|---|
| PubChem CID | 16079005 |
| Peso molecolare | 489.99 |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
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View spec sheet →| 1. Zhang Yue, Ming Zechang, Zhou Zijie, Wei Xiaojie, Huang Jingjing, Zhang Yufan, Li Weikang, Zhu Liming, Wang Shuang, Wu Mengjie, Lu Zeren, Zhou Xinran, Xiong Jiaqing. (2025) A temperature-adaptive component-dynamic-coordinated strategy for high-performance elastic conductive fibers. Nature Communications, 16 (1): (1-11). [PMID:40702002] [10.1038/s41467-025-62140-y] |
