Transcriptome Profiling of Placenta through Pregnancy Reveals Dysregulation of Bile Acids Transport and Detoxification Function

• Published in: International journal of molecular sciences Vol. 20; no. 17; p. 4099
• Main Authors: Wang, Peng, Song, Yumo, Zhong, Heju, Lin, Sen, Zhang, Xiaoling, Li, Jian, Che, Lianqiang, Feng, Bin, Lin, Yan, Xu, Shengyu, Zhuo, Yong, Wu, De, Burrin, Douglas G, Fang, Zhengfeng
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 22.08.2019; MDPI
• Subjects: Animals; Bicarbonates; Bile; bile acid sulfation; bile acid transport; Bile acids; Bile Acids and Salts - metabolism; Biological activity; Biological Transport; Cell surface; Chromatin remodeling; Computational Biology - methods; Detoxification; Female; Fetuses; Gallbladder diseases; Gene expression; Gene Expression Profiling; Genomes; high-throughput RNA sequencing (RNA-Seq); Hormones; Humans; Hydrolase; Immunology; Inactivation, Metabolic; Inductively coupled plasma; Liver diseases; long non-coding RNA (lncRNA); Metabolism; Organs; Oxidative stress; Peptide hormones; Placenta; Placenta - metabolism; Post-transcription; Pregnancy; RNA, Long Noncoding - genetics; RNA, Messenger - genetics; Swine; Therapeutic applications; Transcriptome; Transport; placenta; high-throughput RNA sequencing (RNA-Seq); bile acid sulfation; long non-coding RNA (lncRNA); bile acid transport; pregnancy
• ISSN: 1422-0067; 1661-6596; 1422-0067
• DOI: 10.3390/ijms20174099

Placenta performs the function of several adult organs for the fetus during intrauterine life. Because of the dramatic physiological and metabolic changes during pregnancy and the strong association between maternal metabolism and placental function, the possibility that variation in gene expression patterns during pregnancy might be linked to fetal health warrants investigation. Here, next-generation RNA sequencing was used to investigate the expression profile, including mRNAs and long non-coding RNAs (lncRNAs) of placentas on day 60 of gestation (G60), day 90 of gestation (G90), and on the farrowing day (L0) in pregnant swine. Bioinformatics analysis of differentially expressed mRNAs and lncRNAs consistently showed dysregulation of bile acids transport and detoxification as pregnancy progress. We found the differentially expressed mRNAs, particularly bile salt export pump ( ), organic anion-transporting polypeptide 1A2 ( ), carbonic anhydrase II ( ), Na -HCO cotransporter ( ), and hydroxysteroid sulfotransferases ( ) play an important role in bile acids transport and sulfation in placentas during pregnancy. We also found the potential regulation role of and on placental . These findings have uncovered a previously unclear function and its genetic basis for bile acids metabolism in developing placentas and have important implications for exploring the potential physiological and pathological pathway to improve fetal outcomes.