Summary
The patient was a 57-year-old woman with ovarian serous cystadenocarcinoma in FIGO clinical stage IV. Cancer antigen 125 (CA 125), tissue polypeptide antigen (TPA) and carcinoembryonic antigen (CEA) were immunohistochemically demonstrated in tumor cells, and the variations of serum CA125 and TPA levels reflected the clinical course. The tumor tissue obtained at exploratory laparotomy was minced with scissors, and transplanted subcutaneously into female nude mice for in vivo maintenance. The tumor cells from 5th generation nude mice were dispersed in Eagle's minimal essential medium supplemented with 10% fetal calf serum, and incubated in Falcon tissue culture dishes at 37°C in 5% CO2 in air for in vitro maintenance. The results were as follows: Histopathologically the tumor transplanted into nude mice showed a cystadenocarcinoma, which closely resembled the original human tumor. Immunohistochemically CA125, TPA and CEA were demonstrated in the tumor transplanted into nude mice as well as in the original human tumor. From the growth curve in nude mice, the doubling time was estimated to be about 3.5 days. Serum TPA levels in nude mice were increased in proportion to the tumor growth after transplantation, but serum levels CA125 and CEA were normal. The concentrations of CA125 and TPA were increased in the conditioned media compared with the control media, although the elevated values were decreased with subsequent passages. CEA concentrations in the conditioned media were unchanged.
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Fukazawa, I., Inaba, N., Ota, Y. et al. Experiments with tissue cultures from a human ovarian serous cystadenocarcinoma producing cancer antigen 125 (CA125), tissue polypeptide antigen (TPA) and carcinoembryonic antigen (CEA). Arch Gynecol Obstet 243, 69–81 (1988). https://doi.org/10.1007/BF00932972
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DOI: https://doi.org/10.1007/BF00932972