Polymorphisms in Multidrug Resistance 1, Cyclooxygenase-2 and Breast Cancer Resistance Protein Genes and Risk of Colorectal Cancer, a prospective population based case control study. Running title: MDR1, COX-2, BCRP, NSAID, and Colorectal Cancer

نویسندگان

  • Vibeke Andersen
  • Mette Østergaard
  • Jane Christensen
  • Kim Overvad
  • Anne Tjønneland
  • Ulla Vogel
چکیده

Medical Department, and Clinical Biochemical Department, Viborg Regional Hospital, DK-8800 Viborg, Danish Cancer Society, Institute of Cancer Epidemiology, DK-2100 Copenhagen Department of Clinical Epidemiology, Aarhus University Hospital, DK-9100 Aalborg National Research Centre for the Working Environment, DK-2100 Copenhagen, National Food Institute, Technical University of Denmark, DK-2860 Søborg

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Author's response to reviews Title: Polymorphisms in the xenobiotic transporter Multidrug Resistance 1 (MDR1) gene and interaction with meat intake in relation to risk of colorectal cancer in a Danish prospective case-cohort study. Authors:

Background: Genetic variation that modifies the gut barrier function or the inflammatory response may modify the risk of colorectal cancer (CRC). The intestinal xenobiotic transporters, Multidrug Resistance 1 (MDR1/ABCB1) and Breast Cancer Resistance Protein (BCRP/ABCG2) contribute to the intestinal homeostasis by exporting a broad spectrum of substrates including potential carcinogens from the...

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Polymorphisms in the xenobiotic transporter Multidrug Resistance 1 (MDR1) gene and interaction with meat intake in relation to risk of colorectal cancer in a Danish prospective case-cohort study

Background: Genetic variation that modifies the gut barrier function or the inflammatory response may modify the risk of colorectal cancer (CRC). The intestinal xenobiotic transporters, Multidrug Resistance 1 (MDR1/ABCB1) and Breast Cancer Resistance Protein (BCRP/ABCG2) contribute to the intestinal homeostasis by exporting a broad spectrum of substrates including potential carcinogens from the...

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Dishevelled1-3 contribute to multidrug resistance in colorectal cancer via activating Wnt/β-catenin signaling

Multidrug resistance is a great obstacle in successful chemotherapy of colorectal cancer. However, the molecular mechanism underlying multidrug resistance is not fully understood. Dishevelled, a pivot in Wnt signaling, has been linked to cancer progression, while its role in chemoresistance remains unclear. Here, we found that Dishevelled1-3 was over-expressed in multidrug-resistant colorectal ...

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The Role of Cyclooxygenase-2 in Signaling Pathways Promoting Colorectal Cancer

Colorectal cancer is one of the most common cancers in the world. Various factors are involved in the development and progression of this disease. One of these agents is cyclooxygenase-2 (COX-2). COX-2 is a product of the PTGS2 gene and converts free arachidonic acid to prostaglandins. COX-2 is not naturally expressed in most normal cells. Noticeably, the increased expression of COX-2 has been ...

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Genetic polymorphisms of superoxide dismutase-1 A251G and catalase C-262T with the risk of colorectal cancer

Oxidative stress is significant in numerous types of disease including cancer. To protect cells and organs against reactive oxygen species (ROS), the body has evolved an antioxidant protection system that involved in the detoxification of ROS. Single nucleotide polymorphisms (SNP) of anti-oxidative enzymes may dramatically change the activity of the encoded proteins; therefore, certain alleles ...

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تاریخ انتشار 2008