HOMEPRODUCTSCOMPANYCONTACTFAQResearchDictionaryPharmaSign Up FREE or Login

Effects of 4-nitroestrone 3-methyl ether on dimethylbenz(a)anthracene-induced mammary tumors.

Abstract
4-Nitroestrone 3-methyl ether has been shown to be an effective growth inhibitor of certain dimethylbenz(a)anthracene-induced rat mammary tumors in intact or ovariectomized rats. When administered at optimum levels (24 mg/kg daily), this A-ring-substituted estrone displayed no toxicity, slight estrogenicity, and an antitumor activity which was comparable to that of tamoxifen and nafoxidine and was surpassed only by ovariectomy or pharmacological doses of 17 beta-estradiol 3-benzoate. In addition, the appearance of mammary tumors was prevented when this estrogen derivative was administered to rats just prior to or after dimethylbenz(a)anthracene intubation. Unique to the action of the methyl ether of 4-nitroestrone on mammary tumors was the destruction of adenocarcinomas while permitting the appearance of fibroadenomas. Systemically, 4-nitroestrone 3-methyl ether brought about focal atrophy within the pituitary and ovaries while causing moderate hypertrophy of the uterus. Plasma prolactin was unaffected.
AuthorsJ Rozhin, E H Ludwig, J Corombos, D Odden, J P Horwitz, R Hughes, D E Hughes, E Wilson, S C Brooks
JournalCancer research (Cancer Res) Vol. 43 Issue 6 Pg. 2611-7 (Jun 1983) ISSN: 0008-5472 [Print] United States
PMID6406049 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, P.H.S.)
Chemical References
  • Benz(a)Anthracenes
  • Estrogen Antagonists
  • 4-nitroestrone 3-methyl ether
  • Estrone
  • Estradiol
  • 9,10-Dimethyl-1,2-benzanthracene
Topics
  • 9,10-Dimethyl-1,2-benzanthracene
  • Animals
  • Benz(a)Anthracenes
  • Castration
  • Estradiol (pharmacology)
  • Estrogen Antagonists (pharmacology)
  • Estrone (analogs & derivatives, pharmacology)
  • Female
  • Mammary Neoplasms, Experimental (chemically induced)
  • Ovary (drug effects)
  • Pituitary Gland (drug effects)
  • Rats
  • Rats, Inbred Strains
  • Uterus (drug effects)

Join CureHunter, for free Research Interface BASIC access!

Take advantage of free CureHunter research engine access to explore the best drug and treatment options for any disease. Find out why thousands of doctors, pharma researchers and patient activists around the world use CureHunter every day.
Realize the full power of the drug-disease research graph!


Choose Username:
Email:
Password:
Verify Password:
Enter Code Shown: