Human Carcinoembryonic Antigen Transgenic Mice
Author Information
Author(s): T. Hasegawa, K. Isobe, Y. Tsuchiya, S. Oikawa, H. Nakazato, H. Ikezawa, I. Nakashima, K. Shimokata
Primary Institution: Nagoya University School of Medicine
Hypothesis
The study aims to produce transgenic mice that express human carcinoembryonic antigen (CEA) in various tissues.
Conclusion
The transgenic mice successfully expressed human CEA in multiple tissues, with a characteristic expression pattern similar to that in normal human tissues.
Supporting Evidence
- Human CEA mRNA was detected in all tissues of the transgenic mice.
- CEA protein was expressed in all tissues except the brain, where it showed a different molecular size.
- Immunohistochemical analysis revealed polarized expression of CEA protein in epithelial cells.
Takeaway
Scientists created special mice that can make a human protein called CEA, which helps in studying how this protein works in the body.
Methodology
DNA microinjection into mouse embryos was used to create transgenic mice, followed by various analyses including Southern blot, Northern blot, and immunoblotting.
Limitations
The study does not address the long-term effects of CEA expression in the transgenic mice.
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