Cyclooxygenase 2 is up-regulated and localized to macrophages in the intestine of Min mice
1999

COX-2 and Macrophages in Intestinal Tumors

publication

Author Information

Author(s): Hull M A, Booth J K, Tisbury A, Scott N, Bonifer C, Markham P L, Coletta P L

Primary Institution: Molecular Medicine Unit, University of Leeds, Leeds, UK

Hypothesis

The study investigates the role of COX-2 localization in macrophages and its implications for intestinal tumorigenesis in Min mice.

Conclusion

COX-2 is localized to macrophages in the intestines of Min mice, suggesting its role in adenoma formation.

Supporting Evidence

  • COX-2 protein was localized to interstitial cells in adenomas of the small and large intestine of Min mice.
  • No COX-2 staining was observed in dysplastic epithelial cells or in histologically normal epithelium.
  • COX-2 staining was found in lamina propria cells of histologically normal intestine of Min mice.
  • COX-2-positive cells were identified as a subset of the macrophage population in the intestine.

Takeaway

The study found that a protein called COX-2 is found in certain immune cells in the intestines of special mice, which might help explain how tumors form.

Methodology

Immunohistochemistry was used to detect COX-2 protein localization in intestinal tissues.

Participant Demographics

The study used Min mice and wild-type littermates for comparison.

Digital Object Identifier (DOI)

10.1038/sj.bjc.6690224

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