Study of Cyclin D1 and CDK4 in Oesophageal Cancer
Author Information
Author(s): Matsumoto M, Furihata M, Ishikawa T, Ohtsuki Y, Ogoshi S
Primary Institution: Kochi Medical School
Hypothesis
The study investigates the relationship between the expression of cyclin D1, cyclin E, CDK4, and CDK2 in oesophageal squamous cell carcinoma and their impact on tumor behavior and patient prognosis.
Conclusion
The study found that simultaneous expression of cyclin D1 and CDK4 is associated with worse prognosis and venous invasion in oesophageal squamous cell carcinoma.
Supporting Evidence
- 28 tumors showed cyclin D1 positivity, while 27 showed cyclin E positivity.
- 39 tumors exhibited CDK4 positivity and 31 tumors exhibited CDK2 positivity.
- Simultaneous expression of cyclin D1 and CDK4 was significantly associated with venous invasion.
- Patients with both cyclin D1 and CDK4 positive tumors had a significantly poorer prognosis.
Takeaway
This study looked at how certain proteins in cancer cells can tell us if the cancer is likely to be more aggressive and harder to treat.
Methodology
Immunohistochemical examination of protein expression in tumor samples.
Statistical Information
P-Value
0.0047
Confidence Interval
1.418–6.899
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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