Abstract | SCOPE: METHODS AND RESULTS: To date, the mechanism by which ACFs develop is not yet fully understood. In a search for factors that play a critical role during ACF development, we examined colon gene expression during early stage of ACF development in AOM-treated mice using DNA microarray analysis. AOM treatment significantly upregulated mRNA closely related to mast cell and cytotoxic T-cell activity. This study also investigated the effect of vitamin B6 supplementation on colon gene expression in AOM-treated mice. We found that vitamin B6 supplementation downregulates Cd8a and Ccl8 mRNA expression, suggesting these candidate genes may play a protective role against colonic ACF development. Furthermore, we examined genomic affects of dietary vitamin B6, and showed that Reg3γ mRNA expression in colons is downregulated by vitamin B6. CONCLUSION: This study provides an insight into the genomic activities of dietary vitamin B6 that may be protective against colon tumor development.
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Authors | Keigo Toya, Atsuko Hirata, Tomomi Ohata, Yohei Sanada, Norihisa Kato, Noriyuki Yanaka |
Journal | Molecular nutrition & food research
(Mol Nutr Food Res)
Vol. 56
Issue 4
Pg. 641-52
(Apr 2012)
ISSN: 1613-4133 [Electronic] Germany |
PMID | 22495988
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Copyright | © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
Chemical References |
- CD8 Antigens
- CD8 antigen, alpha chain
- Ccl8 protein, mouse
- Chemokine CCL8
- RNA, Messenger
- Vitamin B 6
- Azoxymethane
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Topics |
- Aberrant Crypt Foci
(genetics, pathology, prevention & control)
- Animals
- Azoxymethane
(toxicity)
- CD8 Antigens
(genetics, metabolism)
- Cell Proliferation
(drug effects)
- Chemokine CCL8
(genetics, metabolism)
- Colon
(drug effects, metabolism, pathology)
- Colonic Neoplasms
(genetics, pathology, prevention & control)
- Dietary Supplements
- Down-Regulation
- Gene Expression Regulation, Neoplastic
- Male
- Mice
- Mice, Inbred ICR
- Oligonucleotide Array Sequence Analysis
- RNA, Messenger
(genetics, metabolism)
- Vitamin B 6
(administration & dosage)
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