Oncol Rep 2011 Dec 12;26(6):1399-406. Epub 2011 Sep 12.
Department of Digestive Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan.
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Pancreas 2008 Mar;36(2):178-86
College of Medicine, Hematology/Oncology, Arizona Cancer Center, University of Arizona, Tucson, AZ 85724, USA.
Objective: To investigate the expression of thioredoxin-interacting protein (TXNIP) during hypoxia and its dependency on hypoxia-inducible factor 1alpha (HIF-1alpha) in pancreatic cancer cell lines.
Methods: MiaPaCa-2 pancreatic cancer cells were transiently transfected with siRNA to HIF-1alpha and TXNIP protein measured after growth in normoxia or hypoxia. In addition, HIF-1alpha dependency was assessed by transiently transfecting MiaPaCa-2 pancreatic cancer cells with HIF-1alpha with a mutated oxygen degradation domain resulting in stable HIF-1alpha expression in normoxic conditions. Read More
Cancer Biol Ther 2011 Sep 1;12(5):383-7. Epub 2011 Sep 1.
Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.
The transcription factor hypoxia-inducible factor-1 (HIF-1) has α and β subunits. Recent studies have shown that the HIF-1α gene may have C1772T and G1790A single nucleotide polymorphisms (SNPs). These SNPs may increase the stability and activity of HIF-1α. Read More
Pancreatology 2012 Mar-Apr;12(2):170-8. Epub 2012 Mar 2.
Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1277, Jiefang Road, Wuhan, Hubei 430022, China.
Background & Aims: Hypoxia is a common characteristic of solid tumors. Recent studies confirmed that Toll-like receptor 4 (TLR4) plays a significant role in cancer invasion and progression. In this study, the correlation between the expression of TLR4 and the change of the protein level of Hypoxia-inducible factor-1 alpha (HIF-1α) was studied. Read More
Acta Biochim Pol 2006 4;53(4):789-99. Epub 2006 Dec 4.
Department of Molecular Biology, Palladin Institute of Biochemistry, National Academy of Science of Ukraine, Kyiv, Ukraine.
Previously we have shown that hypoxia strongly induces the expression of 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase-3 and -4 (PFKFB-3 and PFKFB-4) genes in several cancer cell lines via a HIF-dependent mechanism. In this paper we studied the expression and hypoxic regulation of PFKFB-4 and PFKFB-3 mRNA as well as its correlation with HIF-1alpha, HIF-2alpha, VEGF and Glut1 mRNA expression in the pancreatic cancer cell line Panc1 and two gastric cancer cell lines MKN45 and NUGC3. This study clearly demonstrated that PFKFB-3 and PFKFB-4 mRNA are expresses in MKN45, NUGC3 and Panc1 cancers cells and that both genes are responsive to hypoxia in vitro. Read More