Cited by 70Estrogen and related hormone effectsCancer Risks and FactorsCancer, Stress, Anesthesia, and Immune Response

Prevention by dehydroepiandrosterone of the development of mammary carcinoma induced by 7,12-dimethylbenz(a)anthracene (DMBA) in the rat.

Li, Shengmin, Yan, Xun, B�langer, Alain, Labrie, Fernand·1994·Breast Cancer Research and Treatment

Abstract

The concentration of serum dehydroepiandrosterone sulfate (DHEA-S) and DHEA decreases markedly during aging, and low circulating levels of DHEA have been associated with a higher incidence of breast cancer in women. Using 7,12-dimethylbenz(a)anthracene (DMBA)-induced mammary carcinoma in the rat as model, we have studied the effect of increasing serum levels of DHEA released from Silastic implants on the incidence of these tumors in the rat. Treatment with increasing doses of DHEA leading to serum DHEA levels comparable to those observed in normal adult women (7.1 +/- 0.6 nM and 17.5 +/- 1.1 nM) caused a progressive inhibition of tumor development from 68% bearing tumors in control animals to 22% and 11%, respectively. The average tumor area per rat decreased from 2.81 cm2 in intact control animals to 0.96 and 0.09 cm2 in the groups treated with the same doses of DHEA, respectively. The present data indicate that circulating levels of DHEA similar to those found in normal adult premenopausal women exert a potent inhibitory effect on the development of DMBA-induced mammary tumors in the rat, thus suggesting the possibility of a new and more physiological approach for the prevention of breast cancer in women.

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Crossref · 10.1007/bf00665681

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55 of 55 references verified0 citation errors · 0 not checkable

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Authors
Li, S., Yan, X., B�langer, A., & Labrie, F.
Affiliations
Centre hospitalier de l'Université Laval (CA)
Venue
Breast Cancer Research and Treatment
Published
1994
Volume
29
Issue
2
Pages
203-217
ISSN
  • 0167-6806 (ISSN-L)
  • 1573-7217
OpenAlex
W2025785620
Cited by
70
References
55
Citations by year
2025: 1 · 2020: 1 · 2019: 1 · 2018: 2 · 2016: 1 · 2014: 1
FWCI
3.34
Type
journal article
Language
en
Open access
closed
Locations
  • Breast Cancer Research and Treatment (publishedVersion)
  • PubMed (publishedVersion)
Funders
Medical Research Council
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
  • Health Sciences › Medicine › Oncology › Cancer Risks and Factors
  • Health Sciences › Medicine › Psychiatry and Mental health › Cancer, Stress, Anesthesia, and Immune Response
Keywords
dehydroepiandrosterone, breast cancer prevention, 7,12-dimethylbenz(a)anthracene, DMBA-induced mammary tumors, dehydroepiandrosterone sulfate, tumor suppression, silastic implants, premenopausal women
MeSH terms
Animals, Dehydroepiandrosterone, Dose-Response Relationship, Drug, Drug Implants, Female, Luteinizing Hormone, Mammary Neoplasms, Experimental, Ovariectomy, Prolactin, Time Factors, 9,10-Dimethyl-1,2-benzanthracene, Anticarcinogenic Agents, Rats, Sprague-Dawley, Dehydroepiandrosterone Sulfate, Rats

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