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From Normal Cells to Malignancy: Distinct Role of Pro-inflammatory Factors and Cellular Redox Mechanisms | OMICS International | Abstract
ISSN: 1948-5956

Journal of Cancer Science & Therapy
Open Access

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Research Article

From Normal Cells to Malignancy: Distinct Role of Pro-inflammatory Factors and Cellular Redox Mechanisms

Rajendra K Singh1,2*, Akulapalli Sudhakar3,4,5 and Bal L Lokeshwar1,2

1Department of Urology, Miller School of Medicine, University of Miami, Miami, FL 33136, USA

2Veterans Administration Miami Hospital, Miami, Florida, USA

3Cell Signaling, Retinal and Tumor Angiogenesis Laboratory, Department of Genetics, Boys Town National Research Hospital, Omaha, NE 68131, USA

4Department of Biomedical Sciences, Creighton University School of Medicine, Omaha, NE, 68178, USA

5Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA

*Corresponding Author:
Dr. Rajendra K Singh, PhD
Department of Urology
Miller School of Medicine
University of Miami, Miami
FL, 33136, USA
Phone: (305) 243- 1017
Fax: (305) 243-9724
E-mail: [email protected]

Received date: January 05, 2010; Accepted date: March 08, 2011; Published date: March 12, 2011

Citation: Singh RK, Sudhakar A, Lokeshwar BL (2011) From Normal Cells to Malignancy: Distinct Role of Pro-inflammatory Factors and Cellular Redox Mechanisms. J Cancer Sci Ther 3: 070-075. doi: 10.4172/1948-5956.1000061

Copyright: © 2011 Singh RK, 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.


The genesis of many solid cancers is a complex, multistep process that includes cellular neoplastic transformation, resistance to apoptosis, loss of control of cell cycle, angiogenesis and acquisition of invasive properties. Among a number of factors, the simultaneous existence of chronic inflammatory mechanism and downregulation of antioxidant defense mechanism of cells are emerging major causes of neoplastic transformation and the progression of many solid cancers. The Longer the inflammation persists, higher the risk of developing many age related malignancies such as organs of colon, stomach and prostate etc. Concurrent occurrence of these processes that may affects DNA mutations in cells by excessive generation of free radicals, Reactive Oxygen Species (ROS) and other active intermediates that exceed the limit of the cells ability to neutralize it. Chronic inflammatory conditions may activate a variety of pro-tumorigenic activities, such as stimulation of proliferative pathway, chemotactic activity, increased invasive potential of cells and angiogenesis. However, many of the antioxidant or cellular redox molecules play a crucial role in maintaining cellular homeostasis and response to oxidative damage but down-regulation of some of the cellular molecules of this process may leads to malignant transformation. We provide an overview of the possible mechanism(s) of interaction of pro-inflammatory factors in down-regulating the antioxidant and cellular redox mechanism(s) making cells susceptible to carcinogenesis. The elucidation of specific effects and interactions of these factors may provide the opportunity for the identification of new target molecules at early stage of human malignancies.


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