PMID- 35384129 OWN - NLM STAT- MEDLINE DCOM- 20220719 LR - 20231213 IS - 1099-0461 (Electronic) IS - 1095-6670 (Linking) VI - 36 IP - 7 DP - 2022 Jul TI - Selenium attenuates the cadmium-induced placenta glucocorticoid barrier damage by up-regulating the expression of specificity protein 1. PG - e23056 LID - 10.1002/jbt.23056 [doi] AB - Cadmium (Cd) is an environmental pollutant and pregnant women are especially susceptible to the effects of exposure to Cd. Our previous study found Cd can be accumulated in the placenta and causes fetal growth restriction (FGR) through damage the placental glucocorticoid barrier. Selenium (Se), as an essential micronutrient, can allivate Cd-induced toxicity. In this study, we aim to explore the protective mechanism of Se against Cd-induced the placental glucocorticoid barrier damage and FGR. Pregnant Sprague Dawley (SD) rats were exposed to CdCl(2) (1 mg/kg/day) and Na(2) SeO(3) (0.1-0.2-0.3 mg/kg/day) by gavage from gestational day (GD) 0 to GD 19. The results showed that reduced fetal weight, increased corticosterone concentrations in the maternal and fetal serum, and impaired placental labyrinth layer blood vessel development, appeared in pregnant rats after Cd exposure and improved after treated with Se. In cell experiments, we confirmed that Se reduces Cd-induced apoptosis. Moreover, Se can abolish Cd-induced 11beta-HSD2 and specificity protein 1 (Sp1) decreasing in vivo and vitro. In human JEG-3 cells, the knockdown of Sp1 expression by small interfering RNA can suppressed the protective effect of Se on Cd-induced 11beta-HSD2 decreasing. In general, our results demonstrated that Se is resistant to Cd-induced FGR through upregulating the placenta barrier via activation of the transcription factor Sp1. CI - (c) 2022 Wiley Periodicals LLC. FAU - Wu, Sisi AU - Wu S AD - Departments of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China. AD - The Second Clinical Medical College, Wenzhou Medical University, Wenzhou, Zhejiang, China. FAU - Chen, Na AU - Chen N AD - Departments of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China. AD - The Second Clinical Medical College, Wenzhou Medical University, Wenzhou, Zhejiang, China. FAU - Tong, Xia AU - Tong X AD - Departments of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China. AD - The Second Clinical Medical College, Wenzhou Medical University, Wenzhou, Zhejiang, China. FAU - Xu, Xu AU - Xu X AD - Departments of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China. AD - The Second Clinical Medical College, Wenzhou Medical University, Wenzhou, Zhejiang, China. FAU - Chen, Qihui AU - Chen Q AD - Departments of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China. AD - The Second Clinical Medical College, Wenzhou Medical University, Wenzhou, Zhejiang, China. FAU - Wang, Fan AU - Wang F AUID- ORCID: 0000-0002-1583-1419 AD - Departments of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China. AD - The Second Clinical Medical College, Wenzhou Medical University, Wenzhou, Zhejiang, China. LA - eng GR - Y2020083/Wenzhou Municipal Science and Technology Bureau/ PT - Journal Article DEP - 20220405 PL - United States TA - J Biochem Mol Toxicol JT - Journal of biochemical and molecular toxicology JID - 9717231 RN - 0 (Glucocorticoids) RN - 0 (Sp1 Transcription Factor) RN - 0 (SP1 protein, human) RN - 00BH33GNGH (Cadmium) RN - EC 1.1.1.146 (11-beta-Hydroxysteroid Dehydrogenase Type 2) RN - H6241UJ22B (Selenium) SB - IM MH - 11-beta-Hydroxysteroid Dehydrogenase Type 2/genetics/metabolism/pharmacology MH - Animals MH - Cadmium/toxicity MH - *Cadmium Poisoning/metabolism MH - Cell Line, Tumor MH - Female MH - Fetal Growth Retardation/chemically induced/metabolism MH - Glucocorticoids/pharmacology MH - Humans MH - Placenta/metabolism MH - Pregnancy MH - Rats MH - Rats, Sprague-Dawley MH - *Selenium/adverse effects MH - *Sp1 Transcription Factor/biosynthesis OTO - NOTNLM OT - 11beta-hydroxysteroid dehydrogenase type 2(11beta-HSD2) OT - cadmium (Cd) OT - rats OT - selenium (Se) OT - specificity protein 1(Sp1) EDAT- 2022/04/07 06:00 MHDA- 2022/07/20 06:00 CRDT- 2022/04/06 09:14 PHST- 2022/01/26 00:00 [revised] PHST- 2021/03/04 00:00 [received] PHST- 2022/03/02 00:00 [accepted] PHST- 2022/04/07 06:00 [pubmed] PHST- 2022/07/20 06:00 [medline] PHST- 2022/04/06 09:14 [entrez] AID - 10.1002/jbt.23056 [doi] PST - ppublish SO - J Biochem Mol Toxicol. 2022 Jul;36(7):e23056. doi: 10.1002/jbt.23056. Epub 2022 Apr 5.