Amphiregulin and Colon Cancer Cell Growth
Author Information
Author(s): Damstrup L, Kuwada S K, Dempsey P J, Brown C L, Hawkey C J, Poulsen H S, Wiley H S, Coffey R J Jr
Primary Institution: Vanderbilt University School of Medicine and Veterans Affairs Medical Center
Hypothesis
How does cell polarity affect EGF receptor-mediated mitogenesis in colon cancer cell lines?
Conclusion
Amphiregulin acts as an autocrine growth factor in colon cancer cells, and its effects on cell proliferation are influenced by the polarity of the cells.
Supporting Evidence
- Amphiregulin was the most abundant EGFR ligand in the studied colon cancer cell lines.
- Basolateral administration of neutralizing AR antibodies significantly reduced DNA replication.
- A single class of high-affinity EGFRs was found in the basolateral compartment.
Takeaway
Amphiregulin helps colon cancer cells grow, and how it works depends on which part of the cell it's acting on.
Methodology
The study involved growing colon cancer cell lines on plastic and polarized monolayers, measuring cell proliferation and EGF receptor binding.
Digital Object Identifier (DOI)
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