PMID- 35212737 OWN - NLM STAT- MEDLINE DCOM- 20220602 LR - 20230226 IS - 1096-0929 (Electronic) IS - 1096-6080 (Print) IS - 1096-0929 (Linking) VI - 187 IP - 2 DP - 2022 May 26 TI - Gestational Cd Exposure in the CD-1 Mouse Sex-Specifically Disrupts Essential Metal Ion Homeostasis. PG - 254-266 LID - 10.1093/toxsci/kfac027 [doi] AB - In CD-1 mice, gestational-only exposure to cadmium (Cd) causes female-specific hepatic insulin resistance, metabolic disruption, and obesity. To evaluate whether sex differences in uptake and changes in essential metal concentrations contribute to metabolic outcomes, placental and liver Cd and essential metal concentrations were quantified in male and female offspring perinatally exposed to 500 ppb CdCl2. Exposure resulted in increased maternal liver Cd+2 concentrations (364 microg/kg) similar to concentrations found in non-occupationally exposed human liver. At gestational day (GD) 18, placental Cd and manganese concentrations were significantly increased in exposed males and females, and zinc was significantly decreased in females. Placental efficiency was significantly decreased in GD18-exposed males. Increases in hepatic Cd concentrations and a transient prenatal increase in zinc were observed in exposed female liver. Fetal and adult liver iron concentrations were decreased in both sexes, and decreases in hepatic zinc, iron, and manganese were observed in exposed females. Analysis of GD18 placental and liver metallothionein mRNA expression revealed significant Cd-induced upregulation of placental metallothionein in both sexes, and a significant decrease in fetal hepatic metallothionein in exposed females. In placenta, expression of metal ion transporters responsible for metal ion uptake was increased in exposed females. In liver of exposed adult female offspring, expression of the divalent cation importer (Slc39a14/Zip14) decreased, whereas expression of the primary exporter (Slc30a10/ZnT10) increased. These findings demonstrate that Cd can preferentially cross the female placenta, accumulate in the liver, and cause lifelong dysregulation of metal ion concentrations associated with metabolic disruption. CI - (c) The Author(s) 2022. Published by Oxford University Press on behalf of the Society of Toxicology. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. FAU - Jackson, Thomas W AU - Jackson TW AUID- ORCID: 0000-0002-7996-0412 AD - Center for Human Health and the Environment, Department of Biological Sciences, North Carolina State University, 127 David Clark Labs Campus Box 7617, Raleigh, North Carolina 27695, USA. FAU - Baars, Oliver AU - Baars O AD - Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, North Carolina 27695, USA. FAU - Belcher, Scott M AU - Belcher SM AUID- ORCID: 0000-0002-1196-3705 AD - Center for Human Health and the Environment, Department of Biological Sciences, North Carolina State University, 127 David Clark Labs Campus Box 7617, Raleigh, North Carolina 27695, USA. LA - eng GR - P30 ES025128/ES/NIEHS NIH HHS/United States GR - T32 ES007046/ES/NIEHS NIH HHS/United States GR - 5T32ES007046-38/ES/NIEHS NIH HHS/United States GR - P30ES025128/ES/NIEHS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PL - United States TA - Toxicol Sci JT - Toxicological sciences : an official journal of the Society of Toxicology JID - 9805461 RN - 0 (Cation Transport Proteins) RN - 0 (SLC39A14 protein, mouse) RN - 00BH33GNGH (Cadmium) RN - 42Z2K6ZL8P (Manganese) RN - 9038-94-2 (Metallothionein) RN - E1UOL152H7 (Iron) RN - J41CSQ7QDS (Zinc) SB - IM MH - Animals MH - Cadmium/toxicity MH - *Cation Transport Proteins/genetics/metabolism MH - Female MH - Homeostasis MH - Iron/metabolism MH - Liver/metabolism MH - Male MH - Manganese/metabolism/toxicity MH - Metallothionein/genetics/metabolism MH - Mice MH - *Placenta/metabolism MH - Pregnancy MH - Zinc/toxicity PMC - PMC9154225 OTO - NOTNLM OT - epigenetic OT - essential metals OT - gestation OT - metallothionein OT - placenta EDAT- 2022/02/26 06:00 MHDA- 2022/06/03 06:00 PMCR- 2023/02/25 CRDT- 2022/02/25 12:22 PHST- 2022/02/26 06:00 [pubmed] PHST- 2022/06/03 06:00 [medline] PHST- 2022/02/25 12:22 [entrez] PHST- 2023/02/25 00:00 [pmc-release] AID - 6536982 [pii] AID - kfac027 [pii] AID - 10.1093/toxsci/kfac027 [doi] PST - ppublish SO - Toxicol Sci. 2022 May 26;187(2):254-266. doi: 10.1093/toxsci/kfac027.