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Effect of selenium on the induction of breast fibroadenomas by adenovirus type 9 and 1,2‐dimethylhydrazine‐induced bowel carcinogenesis in rats

Ankerst, Jaro LU orcid and Sjögren, Hans O. LU (1982) In International Journal of Cancer 29(6). p.707-710
Abstract

Selenium in its organic and inorganic forms has been shown to inhibit the development of chemically induced, spontaneous and transplanted tumors. The present investigation was performed to study the effect of selenium (4 μg per ml of drinking water) on tumorigenesis of adenovirus‐type‐9‐induced breast fibroadenomas and on 1,2‐dimethylhydrazine‐induced bowel carcinogenesis in WF rats. It was found that identical treatment with Se under identical conditions and with no obvious toxic effects on the rats (I) resulted in inhibition of DMH‐induced large‐bowel carcinogenesis; (2) facilitated induction of small‐bowel cancer by the same carcinogen in the same animals, and (3) greatly facilitated induction of breast fibroadenoma by adenovirus... (More)

Selenium in its organic and inorganic forms has been shown to inhibit the development of chemically induced, spontaneous and transplanted tumors. The present investigation was performed to study the effect of selenium (4 μg per ml of drinking water) on tumorigenesis of adenovirus‐type‐9‐induced breast fibroadenomas and on 1,2‐dimethylhydrazine‐induced bowel carcinogenesis in WF rats. It was found that identical treatment with Se under identical conditions and with no obvious toxic effects on the rats (I) resulted in inhibition of DMH‐induced large‐bowel carcinogenesis; (2) facilitated induction of small‐bowel cancer by the same carcinogen in the same animals, and (3) greatly facilitated induction of breast fibroadenoma by adenovirus type 9 in the same strain of rats. The effect of Se treatment on DMH‐induced largebowel carcinogenesis confirms previous findings and proves that the opposite effect on fibroadenoma development is not due to differences in e.g. effective dose, animal strains or condition of the animals. It is not yet clear through which mechanisms Se exerts these effects.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
International Journal of Cancer
volume
29
issue
6
pages
707 - 710
publisher
John Wiley & Sons Inc.
external identifiers
  • pmid:7107071
  • scopus:0019944119
ISSN
0020-7136
DOI
10.1002/ijc.2910290618
language
English
LU publication?
yes
id
3edf0a65-0211-4ee5-b95a-7f6709c34b1f
date added to LUP
2021-11-29 15:54:41
date last changed
2024-01-05 21:30:02
@article{3edf0a65-0211-4ee5-b95a-7f6709c34b1f,
  abstract     = {{<p>Selenium in its organic and inorganic forms has been shown to inhibit the development of chemically induced, spontaneous and transplanted tumors. The present investigation was performed to study the effect of selenium (4 μg per ml of drinking water) on tumorigenesis of adenovirus‐type‐9‐induced breast fibroadenomas and on 1,2‐dimethylhydrazine‐induced bowel carcinogenesis in WF rats. It was found that identical treatment with Se under identical conditions and with no obvious toxic effects on the rats (I) resulted in inhibition of DMH‐induced large‐bowel carcinogenesis; (2) facilitated induction of small‐bowel cancer by the same carcinogen in the same animals, and (3) greatly facilitated induction of breast fibroadenoma by adenovirus type 9 in the same strain of rats. The effect of Se treatment on DMH‐induced largebowel carcinogenesis confirms previous findings and proves that the opposite effect on fibroadenoma development is not due to differences in e.g. effective dose, animal strains or condition of the animals. It is not yet clear through which mechanisms Se exerts these effects.</p>}},
  author       = {{Ankerst, Jaro and Sjögren, Hans O.}},
  issn         = {{0020-7136}},
  language     = {{eng}},
  month        = {{06}},
  number       = {{6}},
  pages        = {{707--710}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{International Journal of Cancer}},
  title        = {{Effect of selenium on the induction of breast fibroadenomas by adenovirus type 9 and 1,2‐dimethylhydrazine‐induced bowel carcinogenesis in rats}},
  url          = {{http://dx.doi.org/10.1002/ijc.2910290618}},
  doi          = {{10.1002/ijc.2910290618}},
  volume       = {{29}},
  year         = {{1982}},
}