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Anti-cancer small molecule JP-8g exhibits potent in vivo anti-inflammatory activity.

ABSTRACT: Spirooxindoles are a class of compounds with diverse biological activity. Previously, we identified a series of spirooxindole-pyranopyrimidine compounds that exhibited broad-spectrum anti-cancer activity. In this study, we evaluated one of these compounds, JP-8g, on mouse models and found that it showed potent in vivo anti-inflammatory activity. Further investigation suggested that JP-8g may execute its anti-inflammatory activity through nitric oxide synthase signaling pathways. Our results suggest that these spirooxindole-pyranopyrimidine class compounds have potential for not only cancer treatment but also inflammation therapy.

SUBMITTER: Sun Y

PROVIDER: S-EPMC3953725 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature

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Anti-cancer small molecule JP-8g exhibits potent in vivo anti-inflammatory activity.

Sun Yulong Y Liu Jia J Sun Tao T Zhang Xiaoyuan X Yao Jia J Kai Ming M Jiang Xianxing X Wang Rui R

Scientific reports 20140314

Spirooxindoles are a class of compounds with diverse biological activity. Previously, we identified a series of spirooxindole-pyranopyrimidine compounds that exhibited broad-spectrum anti-cancer activity. In this study, we evaluated one of these compounds, JP-8g, on mouse models and found that it showed potent in vivo anti-inflammatory activity. Further investigation suggested that JP-8g may execute its anti-inflammatory activity through nitric oxide synthase signaling pathways. Our results sugg ...[more]

PMID: 24626153

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Project description:BackgroundGastric cancer (GC) is a life-threatening malignant tumor with high incidence rate. Despite great progress, there are still many GC sufferers that cannot benefit from the existing anti-GC treatments. Therefore, it is still necessary to develop novel medicines against GC. Emetine, a natural small molecule isolated from Psychotria ipecacuanha, has been broadly used for medicinal purposes including cancer treatment. Here, we conducted a comprehensive study on the anti-GC effects of emetine and the related mechanisms of action.MethodsThe cell viability was evaluated by MTT and colony formation assay. Cellular proliferation and apoptosis were analyzed by edu incorporation assay and Annexin V-PI staining, respectively. Moreover, wound healing assay and transwell invasion assay were conducted to detect cell migration and invasion after treatment with emetine. To elucidate the molecular mechanism involved in the anti-GC effects of emetine, RNA sequencing and functional enrichment analysis were carried out on MGC803 cells. Then, the western blot analysis was performed to further verify the anti-GC mechanism of emetine. In vivo anti-tumor efficacy of emetine was evaluated in the MGC803 xenograft model.ResultsMTT and colony formation assay exhibited a strong potency of emetine against GC cell growth, with IC50 values of 0.0497 μM and 0.0244 μM on MGC803 and HGC-27 cells, respectively. Further pharmacodynamic studies revealed that emetine restrained the growth of GC cells mainly via proliferation inhibition and apoptosis induction. Meanwhile, emetine also had the ability to block GC cell migration and invasion. The results of RNA sequencing and western blot showed that emetine acted through regulating multiple signaling pathways, including not only MAPKs and Wnt/β-catenin signaling axes, but also PI3K/AKT and Hippo/YAP signaling cascades that were not found in other tumor types. Notably, the antitumor efficacy of emetine could also be observed in MGC803 xenograft models.ConclusionOur data demonstrate that emetine is a promising lead compound and even a potential drug candidate for GC treatment, deserving further structural optimization and development.

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Anti-cancer small molecule JP-8g exhibits potent in vivo anti-inflammatory activity.

Publications

Anti-cancer small molecule JP-8g exhibits potent in vivo anti-inflammatory activity.

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