Related Experiment Videos
Identification of two cDNA clones coding for androgen-dependent polypeptides in rat ventral prostate
Biochemical and Biophysical Research Communications
|March 16, 1983
Summary
Researchers identified two prostate-specific proteins in rats. Testosterone regulates the production of these proteins, crucial for understanding prostate function and disease.
Area of Science:
- Molecular Biology
- Endocrinology
- Biochemistry
Background:
- The rat prostate gland expresses specific genes.
- Hormonal regulation, particularly by testosterone, plays a key role in prostate development and function.
Purpose of the Study:
- To isolate and characterize cDNA clones encoding prostate-specific proteins.
- To investigate the role of testosterone in regulating the expression of these prostate-specific mRNAs.
Main Methods:
- Synthesis of double-stranded cDNA from rat prostate poly(A)RNA.
- Transformation of E. coli with recombinant plasmids (pBR322).
- Colony hybridization and message selection/translation to identify specific cDNA clones.
Main Results:
- Two prostate-specific cDNA clones were successfully isolated.
- These clones encode polypeptides with molecular weights of 13,500 and 9,300.
- mRNA levels for both polypeptides were significantly altered in castrated rats, indicating testosterone-dependent regulation.
Conclusions:
- Testosterone is a key regulator of gene expression in the rat prostate.
- The identified cDNAs represent genes encoding testosterone-responsive proteins in the prostate.