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Antibodies labeled with fluorescence-agent excitable by infrared rays
1Second Department of Internal Medicine, School of Medicine, The University of Tokushima, Japan.
Journal of Gastroenterology
|August 27, 1998
Summary
This study introduces a novel infrared-fluorescent antibody for enhanced endoscopic detection of minute digestive tract cancers. This innovation aims to improve the diagnosis of microlesions, potentially surpassing current fiberoscopy methods.
Area of Science:
- Gastroenterology
- Medical Imaging
- Biotechnology
Background:
- Diagnosing minute cancers in the digestive tract via endoscopy presents challenges.
- Current methods like fiberoscopy may lack sufficient sensitivity for detecting microlesions.
Purpose of the Study:
- To develop an improved endoscopic diagnostic tool for detecting small digestive tract cancers.
- To create a novel antibody for enhanced visualization of precancerous and cancerous lesions.
Main Methods:
- Development of an antibody conjugated with an indocyanine green (ICG) derivative.
- The antibody exhibits specific fluorescence emission at 807 nm when excited at 768 nm.
- Evaluation of the antibody's physiochemical properties and suitability for immunohistochemical staining and infrared excitation.
Main Results:
- The developed antibody possesses characteristics similar to ICG.
- The antibody demonstrates fluorescence under infrared light, suitable for vital immunostaining.
- The labeled antibody is effective for immunohistochemical staining.
Conclusions:
- The novel infrared-fluorescent antibody shows promise for vital immunostaining in infrared endoscopy.
- This technology could significantly enhance the endoscopic diagnosis of microlesions and minute cancers.
- Further research may establish its superiority over conventional endoscopic techniques for early cancer detection.