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Carcinoembryonic antigen-like substance derived from human prostate
Cancer Research
|July 1, 1979
Summary
Researchers identified a carcinoembryonic antigen-like substance in human prostate tissues and cell cultures. This prostate-derived substance differs from colon-derived antigen and may be prostate-specific.
Area of Science:
- Biochemistry
- Oncology
- Urology
Background:
- Carcinoembryonic antigen-like substance (CEAS) is found in human prostatic epithelial cell cultures.
- CEAS is also present in extracts from both benign and malignant prostate tissues.
Purpose of the Study:
- To characterize the CEAS found in prostate tissue and cell cultures.
- To determine if prostate-derived CEAS is distinct from colon-derived carcinoembryonic antigen (CEA).
Main Methods:
- Column chromatography was used to analyze and compare prostate-derived CEAS with colon-derived CEA.
- Molecular weight estimation was performed on the prostate-derived CEAS.
Main Results:
- Prostate-derived CEAS from cultured cells is identical to that found in tissue extracts.
- Prostate-derived CEAS is biochemically distinct from colon-derived CEA.
- The molecular weight of prostate-derived CEAS is estimated to be greater than 5 x 10^5 Da.
Conclusions:
- The CEAS found in prostate tissue and cell cultures is a unique entity.
- Prostate-derived CEAS exhibits characteristics suggesting it may be a prostate-specific antigen.