Detection of Proteins in Colorectal Cancer
Author Information
Author(s): Kikuchi R, Noguchi T, Takeno S, Kubo N, Uchida Y
Primary Institution: Oita Medical University
Hypothesis
We investigated whether the expression of membrane-type-1 matrix metalloproteinase (MT1-MMP), matrix metalloproteinase-2 (MMP-2) and tissue inhibitor of metalloproteinase-2 (TIMP-2) was consistent with the proposed roles of these proteins in promoting metastasis in colorectal cancer.
Conclusion
Immunohistochemical detection of MT1-MMP and TIMP-2 might be useful for monitoring infiltration in colorectal carcinoma but is not correlated with distant metastases.
Supporting Evidence
- The expression of MT1-MMP was significantly more frequent in deeply invasive carcinomas.
- The frequency of detection of MMP-2 in the stroma was much greater in vascular invasion-positive cases.
- The rate of detection of TIMP-2 in tumour cell cytoplasm increased with the depth of invasion.
- TIMP-2 in the stroma was found more frequently in tumours with lymphatic invasion and lymph node metastasis.
- Significant correlations were found between detection of MT1-MMP and MMP-2 in tumour cell cytoplasm.
Takeaway
The study looked at certain proteins in colorectal cancer to see if they help cancer spread, and found that while they can show how deep the cancer has invaded, they don't help predict if it will spread to other places.
Methodology
The study used immunohistochemical techniques to detect the expression of specific proteins in colorectal cancer tissues.
Statistical Information
P-Value
P = 0.007, P = 0.02, P = 0.03
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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