Gene Expression Changes in Rat Intestinal Cells After MEK1 Activation
Author Information
Author(s): Komatsu Koga, Buchanan F Gregory, Otaka Michiro, Jin Mario, Odashima Masaru, Horikawa Yohei, Watanabe Sumio, DuBois Raymond N
Hypothesis
Constitutive activation of MEK1 induces oncogenic transformation in normal intestinal epithelial cells.
Conclusion
The study found that many tumor-associated genes had significantly altered expression levels following MEK activation, including three novel targets linked to human colorectal cancers.
Supporting Evidence
- Microarray analysis showed at least a three-fold difference in 115 gene transcripts after MEK activation.
- RT-PCR confirmed altered expression levels of 69 gene transcripts.
- Sixty-one of the differentially expressed genes have been linked to cellular transformation or tumorogenesis.
Takeaway
When a specific gene is turned on in rat intestinal cells, it changes how many other genes work, which might help us understand cancer better.
Methodology
The study used oligonucleotide microarrays and RT-PCR analysis to assess gene expression changes in rat intestinal epithelial cells after MEK1 activation.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website