Growth Fraction in Colorectal Tumors Detected by Antibody
Author Information
Author(s): A. Yamaguchi, S. Takegawa, T. Ishida, G. Nishimura, M. Kato, M. Kanno, T. Kosaka, Y. Yonemura, I. Miyazaki
Primary Institution: Kanazawa University
Hypothesis
Can the growth fraction of colorectal tumors be effectively detected using a monoclonal antibody against DNA polymerase alpha?
Conclusion
The study found that the rate of DNA polymerase alpha positive cells is significantly higher in colorectal cancers compared to adenomas, indicating its potential as a prognostic marker.
Supporting Evidence
- The rate of DNA polymerase alpha positive cells in colorectal cancer was 44.8%, significantly higher than the 21.9% in adenomas.
- Positive cells were more prevalent in tumors with liver metastasis (55.4%) compared to those without (41.7%).
- The rate of DNA polymerase alpha positive cells increased as the degree of differentiation decreased.
Takeaway
This study looked at how many cancer cells are growing in colorectal tumors using a special antibody, finding that more cancer cells are active compared to non-cancerous growths.
Methodology
The study examined 54 colorectal lesions using immunohistochemical methods to detect DNA polymerase alpha positive cells.
Limitations
The study was retrospective in nature and may not fully represent all colorectal cancer cases.
Participant Demographics
The study included 54 lesions, comprising 7 adenomas and 47 colorectal cancers, with varying degrees of differentiation.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.05
Want to read the original?
Access the complete publication on the publisher's website