PMID- 37941438 OWN - NLM STAT- Publisher LR - 20240201 IS - 1096-0929 (Electronic) IS - 1096-6080 (Print) IS - 1096-0929 (Linking) VI - 197 IP - 2 DP - 2023 Nov 6 TI - Fetoplacental Disposition and Toxicity of Cadmium in Mice Lacking the Bcrp Transporter. PG - 132-46 LID - kfad115 [pii] LID - 10.1093/toxsci/kfad115 [doi] AB - The environmental toxicant cadmium (Cd) impairs the growth of rodents and humans in utero which in turn heightens susceptibility to diseases later in life. We previously demonstrated that the maternal-facing efflux transporter, breast cancer resistance protein (human BCRP/ABCG2, mouse Bcrp/Abcg2) confers resistance against Cd toxicity in human trophoblasts. In the current study, we sought to determine whether the absence of Bcrp alters the fetoplacental disposition and toxicity of Cd in mice. Pregnant female wild-type (WT) and Bcrp-null mice (n = 9-10/group) were administered a single injection of saline (5 ml/kg) or CdCl2 (5 mg/kg) on gestational day (GD) 9. Following Cd treatment, Bcrp-null offspring were shorter and accumulated more Cd in their placentas on GD 17 compared to WT mice. Because Cd can adversely impact placentation and transplacental nutrient delivery in mice, multiple pathways were assessed using morphometrics and immunohistochemistry including placenta zonation, vasculature development, and nutrient transporter expression. Most notably, the placentas of Bcrp-null mice had reduced immunostaining of the cell adhesion marker, beta-catenin, and the trophoblast marker, cytokeratin, as well as decreased expression of divalent metal nutrient transporters (Dmt1, Zip14, and ZnT1) following Cd treatment. In summary, the absence of Bcrp expression increased placental concentrations of Cd which was associated with shorter fetal size that may be related to differential changes in molecular patterns of placental development and nutrition. CI - (c) The Author(s) 2023. 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 - Kozlosky, Danielle AU - Kozlosky D AUID- ORCID: 0000-0002-0713-0540 AD - Department of Pharmacology and Toxicology, Rutgers University Ernest Mario School of Pharmacy, Piscataway, NJ, 08854, USA. FAU - Doherty, Cathleen AU - Doherty C AUID- ORCID: 0000-0001-8831-6330 AD - Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ, 08854, USA. FAU - Buckley, Brian AU - Buckley B AUID- ORCID: 0000-0001-7336-4321 AD - Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ, 08854, USA. FAU - Goedken, Michael J AU - Goedken MJ AUID- ORCID: 0009-0005-8842-8371 AD - Research Pathology Services, Rutgers University, Piscataway, NJ, 08854, USA. FAU - Miller, Richard K AU - Miller RK AUID- ORCID: 0000-0002-6691-7538 AD - School of Medicine and Dentistry, University of Rochester Medical Center, Rochester, NY, 14642, USA. FAU - Huh, Dan Dongeun AU - Huh DD AUID- ORCID: 0000-0002-5718-6884 AD - Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, 19104, USA. FAU - Barrett, Emily S AU - Barrett ES AUID- ORCID: 0000-0001-9463-524X AD - Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ, 08854, USA. AD - School of Medicine and Dentistry, University of Rochester Medical Center, Rochester, NY, 14642, USA. AD - Department of Biostatistics and Epidemiology, Rutgers School of Public Health, Piscataway, NJ, 08854, USA. FAU - Aleksunes, Lauren M AU - Aleksunes LM AD - Department of Pharmacology and Toxicology, Rutgers University Ernest Mario School of Pharmacy, Piscataway, NJ, 08854, USA. AD - Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ, 08854, USA. LA - eng GR - P30 ES005022/ES/NIEHS NIH HHS/United States GR - P30 ES013508/ES/NIEHS NIH HHS/United States GR - T32 ES007148/ES/NIEHS NIH HHS/United States GR - UL1 TR003017/TR/NCATS NIH HHS/United States PT - Journal Article DEP - 20231106 PL - United States TA - Toxicol Sci JT - Toxicological sciences : an official journal of the Society of Toxicology JID - 9805461 SB - IM PMC - PMC10823776 OTO - NOTNLM OT - Abcg2 OT - Bcrp OT - Breast cancer resistance protein OT - cadmium OT - divalent metal micronutrients OT - fetal growth OT - nutrition OT - placenta OT - zinc EDAT- 2023/11/09 06:42 MHDA- 2023/11/09 06:42 PMCR- 2024/11/06 CRDT- 2023/11/09 03:56 PHST- 2024/11/06 00:00 [pmc-release] PHST- 2023/11/09 06:42 [medline] PHST- 2023/11/09 06:42 [pubmed] PHST- 2023/11/09 03:56 [entrez] AID - 7371314 [pii] AID - kfad115 [pii] AID - 10.1093/toxsci/kfad115 [doi] PST - aheadofprint SO - Toxicol Sci. 2023 Nov 6;197(2):132-46. doi: 10.1093/toxsci/kfad115.