Biomaterial Database

Antagonistic effects of cyproterone acetate and oestradiol on the development of the fetal rat prostate gland induced by androgens in organ culture. 1980

I Lasnitzki, and T Mizuno

Strangeways Research Laboratory, Cambridge, England.

The influence of cyproterone acetate and 17beta-estradiol on the induction of the rat prostate gland by androgens has been investigated in organ culture. The gland develops from its "anlage," the urogenital sinus, as epithelial buds projecting from the urogenital epithelium into the surrounding mesenchyme. In 16.5-day-old male sinuses explanted in organ culture, testosterone or dihydrotestosterone induced such buds de novo; cyproterone acetate or 17beta-estradiol combined with the androgens competitively inhibit the bud formation in most explants. In contrast, in 18.5-day male sinuses both anti-androgens are ineffective, and prostatic buds develop. The difference in response suggests that in the older tissue, exposure to endogenous testosterone before explantation has already set in motion events leading to the differentiation of the gland that are irreversible.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D009924	Organ Culture Techniques	A technique for maintenance or growth of animal organs in vitro. It refers to three-dimensional cultures of undisaggregated tissue retaining some or all of the histological features of the tissue in vivo. (Freshney, Culture of Animal Cells, 3d ed, p1)	Organ Culture,Culture Technique, Organ,Culture Techniques, Organ,Organ Culture Technique,Organ Cultures
D011247	Pregnancy	The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.	Gestation,Pregnancies
D011467	Prostate	A gland in males that surrounds the neck of the URINARY BLADDER and the URETHRA. It secretes a substance that liquefies coagulated semen. It is situated in the pelvic cavity behind the lower part of the PUBIC SYMPHYSIS, above the deep layer of the triangular ligament, and rests upon the RECTUM.	Prostates
D004347	Drug Interactions	The action of a drug that may affect the activity, metabolism, or toxicity of another drug.	Drug Interaction,Interaction, Drug,Interactions, Drug
D004958	Estradiol	The 17-beta-isomer of estradiol, an aromatized C18 steroid with hydroxyl group at 3-beta- and 17-beta-position. Estradiol-17-beta is the most potent form of mammalian estrogenic steroids.	17 beta-Estradiol,Estradiol-17 beta,Oestradiol,17 beta-Oestradiol,Aerodiol,Delestrogen,Estrace,Estraderm TTS,Estradiol Anhydrous,Estradiol Hemihydrate,Estradiol Hemihydrate, (17 alpha)-Isomer,Estradiol Monohydrate,Estradiol Valerate,Estradiol Valeriante,Estradiol, (+-)-Isomer,Estradiol, (-)-Isomer,Estradiol, (16 alpha,17 alpha)-Isomer,Estradiol, (16 alpha,17 beta)-Isomer,Estradiol, (17-alpha)-Isomer,Estradiol, (8 alpha,17 beta)-(+-)-Isomer,Estradiol, (8 alpha,17 beta)-Isomer,Estradiol, (9 beta,17 alpha)-Isomer,Estradiol, (9 beta,17 beta)-Isomer,Estradiol, Monosodium Salt,Estradiol, Sodium Salt,Estradiol-17 alpha,Estradiol-17beta,Ovocyclin,Progynon-Depot,Progynova,Vivelle,17 beta Estradiol,17 beta Oestradiol,Estradiol 17 alpha,Estradiol 17 beta,Estradiol 17beta,Progynon Depot
D005260	Female		Females
D000726	Androgen Antagonists	Compounds which inhibit or antagonize the biosynthesis or actions of androgens.	Androgen Antagonist,Antiandrogen,Antiandrogens,Anti-Androgen Effect,Anti-Androgen Effects,Antiandrogen Effect,Antiandrogen Effects,Antagonist, Androgen,Antagonists, Androgen,Anti Androgen Effect,Anti Androgen Effects,Effect, Anti-Androgen,Effect, Antiandrogen,Effects, Anti-Androgen,Effects, Antiandrogen
D000728	Androgens	Compounds that interact with ANDROGEN RECEPTORS in target tissues to bring about the effects similar to those of TESTOSTERONE. Depending on the target tissues, androgenic effects can be on SEX DIFFERENTIATION; male reproductive organs, SPERMATOGENESIS; secondary male SEX CHARACTERISTICS; LIBIDO; development of muscle mass, strength, and power.	Androgen,Androgen Receptor Agonist,Androgen Effect,Androgen Effects,Androgen Receptor Agonists,Androgenic Agents,Androgenic Compounds,Agents, Androgenic,Agonist, Androgen Receptor,Agonists, Androgen Receptor,Compounds, Androgenic,Effect, Androgen,Effects, Androgen,Receptor Agonist, Androgen,Receptor Agonists, Androgen
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia