alexa Nimesulide and Celecoxib Inhibits Multiple Oncogenic Pathways in Gastric Cancer Cells | OMICS International | Abstract
ISSN: 1948-5956

Journal of Cancer Science & Therapy
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Research Article

Nimesulide and Celecoxib Inhibits Multiple Oncogenic Pathways in Gastric Cancer Cells

Jayaprakash Periasamy1, Muthulakshmi Muthuswami1, Vignesh Ramesh1, Thangaselvam Muthusamy1, Amrita Jain1, Chandrabose Karthikeyan2, Piyush Trivedi2, Rayala Suresh Kumar3, Paramasamy Gunasekaran1, Sun Young Rha4, Partick Tan5and Ganesan Kumaresan1*

1Cancer Genetics Laboratory, Department of Genetics, Centre for Excellence in Genomic Sciences, School of Biological Sciences, Madurai Kamaraj University, Madurai, India

2School of Pharmaceutical Sciences, Rajiv Gandhi Proudyogiki Viswavidyalaya, University of Technology of Madhya Pradesh, Gandhi Nagar, Bhopal, India

3Department of Biotechnology, Indian Institute of Technology Madras (IITM), Chennai, India

4Department of Internal Medicine, Yonsei Cancer Centre, Yonsei University College of Medicine, Seoul, South Korea

5Duke-NUS Graduate Medical School Singapore, 8 College Road, Singapore

*Corresponding Author:
Ganesan Kumaresan
Department of Genetics
School of Biological Sciences
Madurai Kamaraj University
Madurai-625021, India
Tel: +91 452 2456224
Fax: +91 452 2456433
E-mail: [email protected]

Received date: January 13, 2013; Accepted date: March 12, 2013; Published date: March 15, 2013

Citation: Periasamy J, Muthuswami M, Ramesh V, Muthusamy T, Jain A, et al. (2013) Nimesulide and Celecoxib Inhibits Multiple Oncogenic Pathways in Gastric Cancer Cells. J Cancer Sci Ther 5:126-136. doi:10.4172/1948-5956.1000198

Copyright: © 2013 Periasamy J, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Despite being the leading cause of cancer death, targeted therapy for gastric cancer is yet to be established. Wnt/β-catenin signaling is highly deregulated in cancers of gastrointestinal origin including gastric cancers. Stabilization and deregulation of β-catenin occurs at multiple levels and so is being needed to identify a spectrum of Wnt inhibitors to combat deregulated Wnt signaling at the level of various targets and also in different combinations. We developed a luciferase reporter based gastric cancer cellular assay system for Wnt pathway modulator screening and identified nimesulide, a known COX-2 inhibitor as an inhibitor of Wnt/β catenin signaling pathway. Comprehensive signaling pathway profiling revealed that nimesulide could inhibit STAT3, IRF1 and RXR signaling apart from inhibiting Wnt/β-catenin-Myc-E2F signaling cascade. Nimesulide elicits a strong anti-proliferative effect by promoting cell cycle arrest in multiple gastric cancer cell lines. Inhibition of Wnt and STAT3 signaling are found to be COX-2 independent, while the inhibition of RXR and IRF1 pathways are due to the COX-2 inhibiting feature of nimesulide. While nimesulide is capable of activating Notch signaling in gastric cancer cells, celecoxib inhibits Wnt, Myc, E2F, RXR, STAT3, MAPK and Notch signaling pathways in gastric cancer cells. Signaling pathway focused analysis of gastric cancer transcriptome revealed that Wnt, STAT3, IRF1 and RXR signaling pathway are highly deregulated in majority of gastric tumors and indicates the potential of nimesulide and celecoxib class of drugs for targeted gastric cancer therapeutics. The differential inhibition of multiple signaling by nimesulide and celecoxib deserve further investigation.

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