Abstract
Chronic inflammation increases the risk of developing cancer. For example, patients with severe and prolonged inflammatory bowel disease, particularly ulcerative colitis, have a significantly higher risk of developing colorectal cancer. Serine proteases coordinating the coagulation cascade and immune cell proteases play important roles in regulating the inflammatory response through their actions on protease-activated receptors (PAR). PARs and their activating proteases have also been implicated in many cancers, including CRC. Importantly, the actions of proteases could be important for mediating the transition from chronic inflammation to cancer. PAR activation has been shown to have pro-tumourigenic effects including the production of matrix metalloproteinases that can promote tumour cell growth and metastasis, and transactivation of the epidermal growth factor receptor, which is a main target for cancer treatment. Additionally, PAR activation can also result in increased expression of cyclooxygenase (COX)-2, an important enzyme mediating inflammation, resolution, and cancer progression. In this review, we will highlight our current knowledge about the effects of proteases and their receptors on intestinal inflammation and cancer, and explore the potential role of PAR-induced COX-2 on colitis-associated cancer.
Keywords: colitis-associated cancer, colorectal cancer, cyclooxygenase-2, inflammatory bowel disease, protease-activated receptors, serine proteases.
Current Pharmaceutical Design
Title:Proteases and their Receptors as Mediators of Inflammation-Associated Colon Cancer
Volume: 21 Issue: 21
Author(s): Elizabeth H. Trusevych and Wallace K. MacNaughton
Affiliation:
Keywords: colitis-associated cancer, colorectal cancer, cyclooxygenase-2, inflammatory bowel disease, protease-activated receptors, serine proteases.
Abstract: Chronic inflammation increases the risk of developing cancer. For example, patients with severe and prolonged inflammatory bowel disease, particularly ulcerative colitis, have a significantly higher risk of developing colorectal cancer. Serine proteases coordinating the coagulation cascade and immune cell proteases play important roles in regulating the inflammatory response through their actions on protease-activated receptors (PAR). PARs and their activating proteases have also been implicated in many cancers, including CRC. Importantly, the actions of proteases could be important for mediating the transition from chronic inflammation to cancer. PAR activation has been shown to have pro-tumourigenic effects including the production of matrix metalloproteinases that can promote tumour cell growth and metastasis, and transactivation of the epidermal growth factor receptor, which is a main target for cancer treatment. Additionally, PAR activation can also result in increased expression of cyclooxygenase (COX)-2, an important enzyme mediating inflammation, resolution, and cancer progression. In this review, we will highlight our current knowledge about the effects of proteases and their receptors on intestinal inflammation and cancer, and explore the potential role of PAR-induced COX-2 on colitis-associated cancer.
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Cite this article as:
Trusevych H. Elizabeth and MacNaughton K. Wallace, Proteases and their Receptors as Mediators of Inflammation-Associated Colon Cancer, Current Pharmaceutical Design 2015; 21 (21) . https://dx.doi.org/10.2174/1381612821666150514104800
DOI https://dx.doi.org/10.2174/1381612821666150514104800 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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