PMID- 31933163 OWN - NLM STAT- MEDLINE DCOM- 20201207 LR - 20201214 IS - 1933-7205 (Electronic) IS - 1933-7191 (Print) IS - 1933-7191 (Linking) VI - 27 IP - 3 DP - 2020 Mar TI - Nicotine Suppresses the Invasiveness of Human Trophoblasts by Downregulation of CXCL12 Expression through the Alpha-7 Subunit of the Nicotinic Acetylcholine Receptor. PG - 916-924 LID - 10.1007/s43032-019-00095-4 [doi] AB - Smoke exposure during pregnancy has detrimental effects upon numerous fetal and neonatal outcomes. Nicotine (the main component of tobacco) has been suggested to affect placental development. During placental development, efficient invasion by trophoblasts is required for establishment of the fetus-maternal circulation. In this study we explored the regulation of trophoblast invasion by nicotine. An immortalized first trimester extravillous trophoblast cell line (HTR-8/SVneo cells) was used for all the experiments, which were treated by nicotine, methyllycaconitine, and C-X-C motif chemokine ligand 12 (CXCL12). Total RNA and protein were used to study the expressions of nicotinic acetylcholine receptors (nAChRs), and transwell assay was used to study invasiveness. Changes of RNA expression due to nicotine treatment were detected by RNA sequence. Level of CXCL12 mRNA was verified by quantitative PCR. We showed that HTR-8/SVneo expressed subunits alpha2-4, alpha7, alpha9, beta1, and beta2 of nAChRs. Nicotine downregulated CXCL12 expression and inhibited trophoblast invasion. Methyllycaconitine, as an antagonist of the alpha7 homopolymer, blocked the inhibitory effect of nicotine. CXCL12 could rescue the nicotine-induced inhibitory effect on invasion of HTR-8/SVneo cells. These results suggest that the alpha7 subunit of the nAChR has important roles in modulating trophoblast invasion through CXCL12. FAU - Chen, Jing AU - Chen J AD - Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,School of Medicine, South China University of Technology, Guangzhou, 510080, China. AD - Research Department of Medical Science, Guangdong Provincial People's Hospital, Guangzhou, China. FAU - Qiu, Min AU - Qiu M AD - Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,School of Medicine, South China University of Technology, Guangzhou, 510080, China. AD - Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China. FAU - Huang, Zirui AU - Huang Z AD - Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,School of Medicine, South China University of Technology, Guangzhou, 510080, China. AD - Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China. FAU - Chen, Jimei AU - Chen J AD - Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,School of Medicine, South China University of Technology, Guangzhou, 510080, China. AD - Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China. FAU - Zhou, Chengbin AU - Zhou C AD - Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,School of Medicine, South China University of Technology, Guangzhou, 510080, China. FAU - Han, Fengzhen AU - Han F AD - Department of Obstetrics and Gynecology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China. FAU - Qu, Yanji AU - Qu Y AD - Department of Epidemiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China. FAU - Wang, Sheng AU - Wang S AD - Department of Anesthesiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China. FAU - Zhuang, Jian AU - Zhuang J AD - Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,School of Medicine, South China University of Technology, Guangzhou, 510080, China. drzhuangjian5413@163.com. AD - Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China. drzhuangjian5413@163.com. FAU - Li, Xiaohong AU - Li X AD - Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,School of Medicine, South China University of Technology, Guangzhou, 510080, China. lixiaohong@gdph.org.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200113 PL - United States TA - Reprod Sci JT - Reproductive sciences (Thousand Oaks, Calif.) JID - 101291249 RN - 0 (CXCL12 protein, human) RN - 0 (Chemokine CXCL12) RN - 0 (alpha7 Nicotinic Acetylcholine Receptor) RN - 6M3C89ZY6R (Nicotine) SB - IM EIN - Reprod Sci. 2020 Apr;27(4):1087. PMID: 32207098 MH - Cell Line MH - Chemokine CXCL12/*metabolism MH - Down-Regulation/*drug effects MH - Female MH - Humans MH - Nicotine/*administration & dosage MH - Placentation/drug effects MH - Pregnancy MH - Trophoblasts/*drug effects/*metabolism MH - alpha7 Nicotinic Acetylcholine Receptor/*metabolism PMC - PMC7077928 OTO - NOTNLM OT - CXCL12 OT - Invasion OT - Nicotine OT - Trophoblast OT - nAChR COIS- The authors declare that they have no conflict of interest. EDAT- 2020/01/15 06:00 MHDA- 2020/12/15 06:00 PMCR- 2020/01/13 CRDT- 2020/01/15 06:00 PHST- 2019/05/13 00:00 [received] PHST- 2019/08/07 00:00 [accepted] PHST- 2020/01/15 06:00 [pubmed] PHST- 2020/12/15 06:00 [medline] PHST- 2020/01/15 06:00 [entrez] PHST- 2020/01/13 00:00 [pmc-release] AID - 10.1007/s43032-019-00095-4 [pii] AID - 95 [pii] AID - 10.1007/s43032-019-00095-4 [doi] PST - ppublish SO - Reprod Sci. 2020 Mar;27(3):916-924. doi: 10.1007/s43032-019-00095-4. Epub 2020 Jan 13.