Cited by 45Trace Elements in HealthHeavy Metal Exposure and ToxicityEpigenetics and DNA Methylation

Prenatal zinc deficiency-dependent epigenetic alterations of mouse metallothionein-2 gene

Kurita, Hisaka, Ohsako, Seiichiroh, Hashimoto, Shin-ichi, Yoshinaga, Jun, Tohyama, Chiharu·2013·The Journal of Nutritional Biochemistry

Abstract

Zinc (Zn) deficiency in utero has been shown to cause a variety of disease states in children in developing countries, which prompted us to formulate the hypothesis that fetal epigenetic alterations are induced by zinc deficiency in utero. Focusing on metallothionein (MT), a protein that contributes to Zn transport and homeostasis, we studied whether and how the prenatal Zn status affects gene expression. Pregnant mice were fed low-Zn (IU-LZ, 5.0 μg Zn/g) or control (IU-CZ, 35 μg Zn/g) diet ad libitum from gestation day 8 until delivery, with a regular diet thereafter. Bisulfite genomic sequencing for DNA methylation and chromatin immunoprecipitation assay for histone modifications were performed on the MT2 promoter region. We found that 5-week-old IU-LZ mice administered cadmium (Cd) (5.0 mg/kg b.w.) have an elevated abundance of MT2 mRNA compared with IU-CZ mice. Alteration of histone modifications in the MT2 promoter region having metal responsive elements (MREs) was observed in 1-day-old and 5-week-old IU-LZ mice compared with IU-CZ mice. In addition, prolongation of MTF1 binding to the MT2 promoter region in 5-week-old IU-LZ mice upon Cd exposure is considered to contribute to the enhanced MT2 induction. In conclusion, we found for the first time that Zn deficiency in utero induces fetal epigenetic alterations and that these changes are being stored as an epigenetic memory until adulthood.

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Crossref · 10.1016/j.jnutbio.2012.05.013

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  • In one study, fetal zinc deficiency-induced epigenetic alterations in the gene coding for the metal transporter, metallothionein-2.

    “In the case of MZ twins sharing a placenta, external stressors that affect only one twin may induce epigenetic modification; notably, in one study fetal zinc deficiency-induced epigenetic alterations in the gene coding for the metal transporter, metallothionein-2 (ref. 37).”

    From Fetal and postnatal metal dysregulation in autism (2017) · cites this paper as [37]

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Authors
Kurita, H., Ohsako, S., Hashimoto, S.-I., Yoshinaga, J., & Tohyama, C.
Affiliations
  • Center for Disease Biology and Integrative Medicine, The University of Tokyo (JP)
  • The University of Tokyo (JP)
Corresponding author
Tohyama, Chiharu
Venue
The Journal of Nutritional Biochemistry
Publisher
Elsevier BV
Published
2013-01
Volume
24
Issue
1
Pages
256-266
ISSN
0955-2863 (ISSN-L)
OpenAlex
W2038340007
Cited by
45
References
51
Citations by year
2025: 1 · 2023: 2 · 2022: 3 · 2021: 4 · 2020: 4 · 2019: 2 · 2018: 5 · 2017: 10 · 2016: 3 · 2015: 4 · 2014: 3 · 2013: 3 · 2012: 1
FWCI
3.27
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Nutritional Biochemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
Japan Society for the Promotion of Science (23658237, 23310044)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Trace Elements in Health
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Heavy Metal Exposure and Toxicity
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
Keywords
metallothionein-2, epigenetic memory, DNA methylation, histone modifications, metal-responsive elements, cadmium exposure, zinc homeostasis, fetal programming, promoter, mouse model
MeSH terms
Transcription Factor MTF-1, Animals, Cadmium, DNA-Binding Proteins, Female, Gene Expression Regulation, Histones, Liver, Male, Metallothionein, Mice, Inbred C57BL, Pregnancy, Prenatal Exposure Delayed Effects, Promoter Regions, Genetic, Transcription Factors, Zinc, CpG Islands, DNA Methylation, Epigenesis, Genetic, Chromatin Immunoprecipitation, Mice

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