Analysis of DNA methylation and histone modification profiles of liver-specific transporters

Satoki Imai, Ryota Kikuchi, Hiroyuki Kusuhara, Shintaro Yagi, Kunio Shiota, Yuichi Sugiyama

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Tissue-specific expression of transporters is tightly linked with their physiological functions through the regulation of the membrane transport of their substrates. We hypothesized that epigenetic regulation underlies the tissue-specific expression of mouse liver-specific transporters (Oatp1b2/ Slco1b2, Ntcp/Slc10a1, Bsep/Abcb11, and Abcg5/g8). We examined their DNA methylation and histone modification profiles near the transcriptional start site (TSS) in the liver, kidney, and cerebrum. Genome-wide DNA methylation profiling with tissue-dependent differentially methylated region profiling with restriction tag-mediated amplification and subsequent bisulfite genomic sequencing demonstrated that the CpG dinucleotides around the TSS of Oatp1b2 (from -515 to + 149 CpGs), Ntcp (from -481 to +495 CpGs), Bsep (from -339 to +282 CpGs), and Abcg5/g8 (from -161 to +5 CpGs for Abcg5, i.e., from -213 to -48 CpGs for AbcgS) were hypomethylated in the liver and hypermethylated in the kidney and cerebrum. The opposite pattern was observed for Pept2l Slc15a2 (from -638 to +4 CpGs), which was expressed in the kidney and cerebrum but not in the liver. These DNA methylation profiles are consistent with the tissue distribution of these transporters. A chromatin immunoprecipitation assay demonstrated that the histone H3 associated with Oatp1b2, Ntcp, Bsep, and Abcg5/g8 promoters was hyperacetylated in the liver but was acetylated very little in the kidney and cerebrum, whereas the upstream region of Pept2 was hyperacetylated only in the kidney and cerebrum. These results suggest the involvement of epigenetic systems in the tissue-specific expression of mouse transporters Oatp1b2, Ntcp, Bsep, Abcg5/ g8, and Pept2.

Original languageEnglish
Pages (from-to)568-576
Number of pages9
JournalMolecular Pharmacology
Volume75
Issue number3
DOIs
Publication statusPublished - 2009 Mar
Externally publishedYes

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Histone Code
Cerebrum
DNA Methylation
Kidney
Liver
Epigenomics
DNA Fingerprinting
Chromatin Immunoprecipitation
Tissue Distribution
Histones
Genome
Membranes

ASJC Scopus subject areas

  • Pharmacology
  • Molecular Medicine

Cite this

Imai, S., Kikuchi, R., Kusuhara, H., Yagi, S., Shiota, K., & Sugiyama, Y. (2009). Analysis of DNA methylation and histone modification profiles of liver-specific transporters. Molecular Pharmacology, 75(3), 568-576. https://doi.org/10.1124/mol.108.052589

Analysis of DNA methylation and histone modification profiles of liver-specific transporters. / Imai, Satoki; Kikuchi, Ryota; Kusuhara, Hiroyuki; Yagi, Shintaro; Shiota, Kunio; Sugiyama, Yuichi.

In: Molecular Pharmacology, Vol. 75, No. 3, 03.2009, p. 568-576.

Research output: Contribution to journalArticle

Imai, S, Kikuchi, R, Kusuhara, H, Yagi, S, Shiota, K & Sugiyama, Y 2009, 'Analysis of DNA methylation and histone modification profiles of liver-specific transporters', Molecular Pharmacology, vol. 75, no. 3, pp. 568-576. https://doi.org/10.1124/mol.108.052589
Imai, Satoki ; Kikuchi, Ryota ; Kusuhara, Hiroyuki ; Yagi, Shintaro ; Shiota, Kunio ; Sugiyama, Yuichi. / Analysis of DNA methylation and histone modification profiles of liver-specific transporters. In: Molecular Pharmacology. 2009 ; Vol. 75, No. 3. pp. 568-576.
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