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GEO help: Mouse over screen elements for information. |
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| Status |
Public on May 14, 2014 |
| Title |
Gene Expression profiles of colon from Hif-1α+/+, Hif-1αLSL/LSL |
| Organism |
Mus musculus |
| Experiment type |
Expression profiling by array
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| Summary |
To investigate the detailed molecular mechanisms for the regulatory role of HIF-1α in colon, microarray gene expression analysis was performed on colon RNA isolated from 6- to 8-week-old Hif-1α+/+, Hif-1αLSL/LSL mice.
Background & Aims: The progression and growth of solid tumors leads to a state where tumors outgrow their capacity for efficient oxygenation and nutrient uptake and an increase in tumor hypoxia. Tumor hypoxic response is mediated by hypoxia-inducible factor (HIF)-1a and HIF-2a. These transcription factors regulate a battery of genes that are critical for tumor oxygenation, tumor metabolism, and cell proliferation and survival. Therefore, inhibitors of HIF have been sought for as anti-neoplastic agents in several different kinds of cancers. Interestingly, in ischemic and inflammatory diseases of the intestine, activation of HIF-1a is beneficial, and can reduce intestinal inflammation. The efficacy of pharmacological agents that chronically activate HIF-1a are decreased due to the tumorigenic potential of HIF. However, recent advance in understanding HIF signaling have identified mechanisms, which could allow for isoform specific activators. Activation of HIF-2a increases colon carcinogenesis and progression in mouse models. However, the role of chronic HIF-1a activation is unclear in the progression in colon cancer. The present data demonstrates that activation of HIF-1a in epithelial cells does not increase colon carcinogens or progression in two mouse models of colon cancer, and provides the proof of principle that HIF-1a activation maybe safe as therapies for inflammatory bowel disease.
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| Overall design |
Global gene expression profiling in colon RNAs isolated from 6- to 8-week-old Hif-1α+/+ (n=5, Shah 019) and Hif-1αLSL/LSL (n=5, Shah 020).
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| Contributor(s) |
Xue X, Shah Y |
| Citation(s) |
24875099 |
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| Submission date |
Mar 14, 2014 |
| Last update date |
Apr 18, 2017 |
| Contact name |
XIANG XUE |
| E-mail(s) |
[email protected]
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| Phone |
7346155041
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| Organization name |
Umich
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| Street address |
1301 E. Catherine Street
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| City |
Ann Arbor |
| State/province |
Michigan |
| ZIP/Postal code |
48109 |
| Country |
USA |
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| Platforms (1) |
| GPL11533 |
[MoGene-1_1-st] Affymetrix Mouse Gene 1.1 ST Array [transcript (gene) version] |
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| Samples (2) |
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| Relations |
| BioProject |
PRJNA241309 |
| Supplementary file |
Size |
Download |
File type/resource |
| GSE55915_RAW.tar |
8.2 Mb |
(http)(custom) |
TAR (of CEL) |
| Processed data included within Sample table |
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