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Cell kinetic study of human carcinomas using bromodeoxyuridine
S Kikuyama1, T Kubota, M Watanabe
1Department of Surgery, School of Medicine, Keio University, Tokyo, Japan.
Cell and Tissue Kinetics
|January 1, 1988
Summary
Bromodeoxyuridine (BrdU) and immunohistochemistry effectively measure cell kinetics in gastric cancer. Higher labeling indices correlate with advanced stages, aiding tumor progression studies.
Area of Science:
- Oncology
- Cell Biology
- Immunohistochemistry
Background:
- Understanding tumor cell proliferation is crucial for cancer diagnosis and treatment.
- Traditional methods for assessing cell kinetics can be time-consuming and complex.
Purpose of the Study:
- To evaluate the utility of bromodeoxyuridine (BrdU) and immunohistochemistry for studying in vivo cell kinetics in human gastric cancer.
- To correlate cell proliferation rates with tumor stage and histological differentiation.
Main Methods:
- Administered bromodeoxyuridine (BrdU) to 24 gastric cancer patients pre-operatively.
- Utilized immunohistochemistry with anti-BrdU monoclonal antibody to detect BrdU-incorporating cells in tumor specimens.
- Calculated the labeling index (LI) by microscopic counting of labeled tumor cells.
Main Results:
- The labeling index (LI) in gastric tumors ranged from 4.0% to 41.4%.
- Higher LI was observed at the tumor invasion site compared to the central area.
- Gastric cancer Stage I showed a statistically lower LI than Stages II, III, and IV (P < 0.005).
- No significant correlation was found between LI and histological differentiation.
Conclusions:
- Bromodeoxyuridine (BrdU) and immunohistochemistry provide a practical and efficient method for assessing cell kinetics in human malignant tumors.
- This technique offers advantages over radioactive thymidine methods in terms of ease of use and time efficiency.
- The findings suggest that cell proliferation rates, as measured by LI, are associated with gastric cancer stage.