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Sanchon-Sanchez P, Herraez E, Macias RIR, Estiu MC, Fortes P, Monte MJ, Marin JJG, Romero MR. Relationship between cholestasis and altered progesterone metabolism in the placenta-maternal liver tandem. Biochim Biophys Acta Mol Basis Dis 2024; 1870:166926. [PMID: 37956602 DOI: 10.1016/j.bbadis.2023.166926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/20/2023] [Accepted: 10/24/2023] [Indexed: 11/15/2023]
Abstract
BACKGROUND In intrahepatic cholestasis of pregnancy (ICP), there are elevated maternal serum levels of total bile acids, progesterone, and some sulfated metabolites, such as allopregnanolone sulfate, which inhibits canalicular function. AIM To investigate the relationship between cholestasis and the expression of crucial enzymes involved in progesterone metabolism in the liver and placenta. METHODS Obstructive cholestasis was induced by bile duct ligation (BDL). RT-qPCR (mRNA) and western blot (protein) were used to determine expression levels. Srd5a1 and Akr1c2 enzymatic activities were assayed by substrate disappearance (progesterone and 5α-dihydroprogesterone, respectively), measured by HPLC-MS/MS. RESULTS BDL induced decreased Srd5a1 and Akr1c2 expression and activity in rat liver, whereas both enzymes were up-regulated in rat placenta. Regarding sulfotransferases, Sult2b1 was also moderately up-regulated in the liver. In placenta from ICP patients, SRD5A1 and AKR1C2 expression was elevated, whereas both genes were down-regulated in liver biopsies collected from patients with several liver diseases accompanied by cholestasis. SRD5A1 and AKR1C2 expression was not affected by incubating human hepatoma HepG2 cells with FXR agonists (chenodeoxycholic acid and GW4064). Knocking-out Fxr in mice did not reduce Srd5a1 and Akr1c14 expression, which was similarly down-regulated by BDL. CONCLUSION SRD5A1 and AKR1C2 expression was markedly altered by cholestasis. This was enhanced in the placenta but decreased in the liver, which is not mediated by FXR. These results suggest that the excess of progesterone metabolites in the serum of ICP patients can involve both enhanced placental production and decreased hepatic clearance. The latter may also occur in other cholestatic conditions.
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Affiliation(s)
- Paula Sanchon-Sanchez
- Experimental Hepatology and Drug Targeting (HEVEPHARM), IBSAL, University of Salamanca, Salamanca, Spain; National Institute for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Madrid, Spain
| | - Elisa Herraez
- Experimental Hepatology and Drug Targeting (HEVEPHARM), IBSAL, University of Salamanca, Salamanca, Spain; National Institute for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Madrid, Spain
| | - Rocio I R Macias
- Experimental Hepatology and Drug Targeting (HEVEPHARM), IBSAL, University of Salamanca, Salamanca, Spain; National Institute for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Madrid, Spain
| | - Maria C Estiu
- Ramon Sarda Mother's and Children's Hospital, Buenos Aires, Argentina
| | - Puri Fortes
- Foundation for Applied Medical Research (FIMA), School of Medicine, University of Navarra, Pamplona, Spain; National Institute for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Madrid, Spain
| | - Maria J Monte
- Experimental Hepatology and Drug Targeting (HEVEPHARM), IBSAL, University of Salamanca, Salamanca, Spain; National Institute for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Madrid, Spain
| | - Jose J G Marin
- Experimental Hepatology and Drug Targeting (HEVEPHARM), IBSAL, University of Salamanca, Salamanca, Spain; National Institute for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Madrid, Spain.
| | - Marta R Romero
- Experimental Hepatology and Drug Targeting (HEVEPHARM), IBSAL, University of Salamanca, Salamanca, Spain; National Institute for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Madrid, Spain
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2
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Xiong L, Tang M, Xing S, Yang X. The role of noncoding RNA and its diagnostic potential in intrahepatic cholestasis of pregnancy: a research update. Front Genet 2023; 14:1239693. [PMID: 37900174 PMCID: PMC10611463 DOI: 10.3389/fgene.2023.1239693] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 09/27/2023] [Indexed: 10/31/2023] Open
Abstract
Intrahepatic cholestasis of pregnancy (ICP) is a common liver disorder that generally occurs during the second or third trimester of pregnancy. It rarely causes any harm to the mother; however, it can result in short- and long-term complications in the offspring. Therefore, it is crucial to diagnose and treat this condition to avoid poor pregnancy outcomes. The identification of novel markers with potential diagnostic, prognostic, and therapeutic utility in ICP has gained attention. Noncoding RNAs (ncRNAs), including microRNA, long noncoding RNA, and circular RNA, are a type of transcripts that are not translated into proteins. They possess vital biological functions, including transcriptional and translational regulation and DNA, RNA, and protein interactions. The pathogenesis of ICP is related to the aberrant expression of several circulating or placenta-related ncRNAs. In this review, we summarized all recent findings on ncRNAs and ICP and outlined the concepts that form the basis for the early diagnosis and targeted treatment of ICP.
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Affiliation(s)
- Liling Xiong
- Obstetrics Department, Chengdu Women’s and Children’s Center Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Mi Tang
- GCP Institution, Chengdu Women’s and Children’s Center Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Shasha Xing
- GCP Institution, Chengdu Women’s and Children’s Center Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Xiao Yang
- Obstetrics Department, Chengdu Women’s and Children’s Center Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
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Xing L, Bai T, Liu S, Liu J, Jing X, Deng C, Xia T, Liu Y, Cheng J, Wei X, Luo Y, Zhou Q, Zhu Q, Liu H. Maternal, neonatal, pregnancy outcome characteristics of pregnant women with high plasma cell-free DNA concentration in non-invasive prenatal screening: a retrospective analysis. Front Pediatr 2023; 11:1195818. [PMID: 37664552 PMCID: PMC10469925 DOI: 10.3389/fped.2023.1195818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 08/04/2023] [Indexed: 09/05/2023] Open
Abstract
Objective Cell-free DNA (cfDNA) is a useful biomarker in various clinical contexts. Herein, we aimed to identify maternal characteristics and pregnancy outcomes associated with a failed NIPS test due to high cfDNA concentrations. Methods A retrospective study of cases with high plasma cfDNA concentration in pregnant women in which NIPS test was performed (from 174,318 cases). We reported the detection of 126 cases (118 with complete clinical information) in which the high amount of cfDNA did not allow the performance of NIPS and study the possible causes of this result. Results 622 (0.35%) of 174,318 pregnant women had failed the NIPS test, including 126 (20.3%) cases with high plasma cfDNA concentrations. The failed NIPS due to high plasma cfDNA concentrations was associated with maternal diseases and treatment with low-molecular-weight heparin (LMWH). Further follow-up of the 118 pregnant women in the case group revealed that the pregnancy outcomes included 31 premature deliveries, 21 abortions. The cfDNA concentrations of pregnant women with preterm deliveries were 1.15 (0.89, 1.84), which differed significantly from those who had full-term deliveries. Conclusions Among pregnant women with high cfDNA concentrations, systemic autoimmune diseases, pregnancy complications and LMWH were associated with increased incidence of failed NIPS test. High maternal cfDNA concentrations may not be associated with chromosomal abnormalities in the fetus. However, they should be alerted to the possibility of preterm births and stillbirths. Further clinical studies on pregnant women with high cfDNA concentrations are required.
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Affiliation(s)
- Lingling Xing
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
- Department of Medical Genetics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Ting Bai
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
- Department of Medical Genetics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Sha Liu
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
- Department of Medical Genetics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Jianlong Liu
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
- Department of Medical Genetics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Xiaosha Jing
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
- Department of Medical Genetics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Cechuan Deng
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
- Department of Medical Genetics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Tianyu Xia
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
- Department of Medical Genetics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yunyun Liu
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
- Department of Medical Genetics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Jing Cheng
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
- Department of Medical Genetics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Xiang Wei
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
- Department of Medical Genetics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yuan Luo
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
- Department of Medical Genetics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Quanfang Zhou
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
- Department of Medical Genetics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Qian Zhu
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
- Department of Medical Genetics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Hongqian Liu
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China
- Department of Medical Genetics, West China Second University Hospital, Sichuan University, Chengdu, China
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4
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Yang X, Zhou Y, Li H, Song F, Li J, Zhang Y, Lin Y, Zhang H, Fan J, Wu W. Autophagic flux inhibition, apoptosis, and mitochondrial dysfunction in bile acids-induced impairment of human placental trophoblast. J Cell Physiol 2022; 237:3080-3094. [PMID: 35579960 DOI: 10.1002/jcp.30774] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 04/13/2022] [Accepted: 04/26/2022] [Indexed: 11/09/2022]
Abstract
Intrahepatic cholestasis of pregnancy (ICP) is a common pregnancy-specific disease, characterized by increased bile acid levels and adverse fetal outcomes. We previously reported excessive bile acids led to dysfunction of placental trophoblasts in ICP. However, the detailed mechanism is still unclear. Autophagy is fundamental process for protecting cell survival against adverse conditions. Here, we evaluated the effect of increased concentration of bile acids on autophagy in trophoblasts in vitro and in vivo. First, we demonstrated that the autophagy substrate p62/sequestosome-1 was accumulated in placental tissues from patients with ICP and in human trophoblasts treated with hydrophobic bile acids, including chenodeoxycholic acid and deoxycholic acid. Furthermore, we found that treatment with hydrophobic bile acids impaired autophagic flux in both time- and concentration-dependent manners, by suppressing the AMP-activated protein kinase/unc-51-like kinase 1 autophagic signaling pathway. Notably, trophoblasts were prone to apoptotic cell death upon starvation along with bile-acids treatment in vitro or in an ICP mouse model in vivo. Additionally, we revealed mitochondrial dysfunction was the predominant biological process in excessive bile acids induced trophoblast impairment under starvation by proteomic assay. Collectively, our study proposed a complex interaction of excessive bile acids induced autophagic flux, mitochondrial dysfunction, and cellular apoptosis in placental trophoblasts may play a critical role in the pathogenesis of ICP.
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Affiliation(s)
- Xi Yang
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Yulai Zhou
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Huan Li
- Songjiang Maternity and Child Health Hospital, Shanghai, China
| | - Fuzhen Song
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Juan Li
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yong Zhang
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.,Institute of Birth Defects and Rare Diseases, Shanghai Jiao Tong University, Shanghai, China
| | - Yi Lin
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.,Institute of Birth Defects and Rare Diseases, Shanghai Jiao Tong University, Shanghai, China
| | - Huijuan Zhang
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Jianxia Fan
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.,Shanghai Municipal Key Clinical Specialty, Shanghai, China
| | - Weibin Wu
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.,Institute of Birth Defects and Rare Diseases, Shanghai Jiao Tong University, Shanghai, China
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5
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Conley JM, Lambright CS, Evans N, Medlock-Kakaley E, Hill D, McCord J, Strynar MJ, Wehmas LC, Hester S, MacMillan DK, Gray LE. Developmental toxicity of Nafion byproduct 2 (NBP2) in the Sprague-Dawley rat with comparisons to hexafluoropropylene oxide-dimer acid (HFPO-DA or GenX) and perfluorooctane sulfonate (PFOS). ENVIRONMENT INTERNATIONAL 2022; 160:107056. [PMID: 34952357 PMCID: PMC8821375 DOI: 10.1016/j.envint.2021.107056] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/10/2021] [Accepted: 12/18/2021] [Indexed: 05/04/2023]
Abstract
Nafion byproduct 2 (NBP2) is a polyfluoroalkyl ether sulfonic acid that was recently detected in surface water, drinking water, and human serum samples from monitoring studies in North Carolina, USA. We orally exposed pregnant Sprague-Dawley rats to NBP2 from gestation day (GD) 14-18 (0.1-30 mg/kg/d), GD17-21, and GD8 to postnatal day (PND) 2 (0.3-30 mg/kg/d) to characterize maternal, fetal, and postnatal effects. GD14-18 exposures were also conducted with perfluorooctane sulfonate (PFOS) for comparison to NBP2, as well as data previously published for hexafluoropropylene oxide-dimer acid (HFPO-DA or GenX). NBP2 produced stillbirth (30 mg/kg), reduced pup survival shortly after birth (10 mg/kg), and reduced pup body weight (10 mg/kg). Histopathological evaluation identified reduced glycogen stores in newborn pup livers and hepatocyte hypertrophy in maternal livers at ≥ 10 mg/kg. Exposure to NBP2 from GD14-18 reduced maternal serum total T3 and cholesterol concentrations (30 mg/kg). Maternal, fetal, and neonatal liver gene expression was investigated using RT-qPCR pathway arrays, while maternal and fetal livers were also analyzed using TempO-Seq transcriptomic profiling. Overall, there was limited alteration of genes in maternal or F1 livers from NBP2 exposure with significant changes mostly occurring in the top dose group (30 mg/kg) associated with lipid and carbohydrate metabolism. Metabolomic profiling indicated elevated maternal bile acids for NBP2, but not HFPO-DA or PFOS, while all three reduced 3-indolepropionic acid. Maternal and fetal serum and liver NBP2 concentrations were similar to PFOS, but ∼10-30-fold greater than HFPO-DA concentrations at a given maternal oral dose. NBP2 is a developmental toxicant in the rat, producing neonatal mortality, reduced pup body weight, reduced pup liver glycogen, reduced maternal thyroid hormones, and altered maternal and offspring lipid and carbohydrate metabolism similar to other studied PFAS, with oral toxicity for pup loss that is slightly less potent than PFOS but more potent than HFPO-DA.
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Affiliation(s)
- Justin M Conley
- U.S. Environmental Protection Agency/Office of Research & Development/Center for Public Health and Environmental Assessment, Research Triangle Park, NC, USA.
| | - Christy S Lambright
- U.S. Environmental Protection Agency/Office of Research & Development/Center for Public Health and Environmental Assessment, Research Triangle Park, NC, USA.
| | - Nicola Evans
- U.S. Environmental Protection Agency/Office of Research & Development/Center for Public Health and Environmental Assessment, Research Triangle Park, NC, USA.
| | - Elizabeth Medlock-Kakaley
- U.S. Environmental Protection Agency/Office of Research & Development/Center for Public Health and Environmental Assessment, Research Triangle Park, NC, USA.
| | - Donna Hill
- U.S. Environmental Protection Agency/Office of Research & Development/Center for Public Health and Environmental Assessment, Research Triangle Park, NC, USA.
| | - James McCord
- U.S. Environmental Protection Agency/Office of Research & Development/Center for Environmental Measurement and Modeling, Research Triangle Park, NC, USA.
| | - Mark J Strynar
- U.S. Environmental Protection Agency/Office of Research & Development/Center for Environmental Measurement and Modeling, Research Triangle Park, NC, USA.
| | - Leah C Wehmas
- U.S. Environmental Protection Agency/Office of Research & Development/Center for Computational Toxicology and Exposure, Research Triangle Park, NC, USA.
| | - Susan Hester
- U.S. Environmental Protection Agency/Office of Research & Development/Center for Computational Toxicology and Exposure, Research Triangle Park, NC, USA.
| | - Denise K MacMillan
- U.S. Environmental Protection Agency/Office of Research & Development/Center for Computational Toxicology and Exposure, Research Triangle Park, NC, USA.
| | - L Earl Gray
- U.S. Environmental Protection Agency/Office of Research & Development/Center for Public Health and Environmental Assessment, Research Triangle Park, NC, USA.
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6
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Dong R, Ye N, Zhao S, Wang G, Zhang Y, Wang T, Zou P, Wang J, Yao T, Chen M, Zhou C, Zhang T, Luo L. Studies on Novel Diagnostic and Predictive Biomarkers of Intrahepatic Cholestasis of Pregnancy Through Metabolomics and Proteomics. Front Immunol 2021; 12:733225. [PMID: 34721396 PMCID: PMC8552060 DOI: 10.3389/fimmu.2021.733225] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 09/27/2021] [Indexed: 11/25/2022] Open
Abstract
Background Intrahepatic cholestasis of pregnancy (ICP) usually occurs in the third trimester and is associated with increased risks in fetal complications. Currently, the exact mechanism of this disease is unknown. The purpose of this study was to develop potential biomarkers for the diagnosis and prediction of ICP. Methods We enrolled 40 pregnant women diagnosed with ICP and 40 healthy pregnant controls. The number of placental samples and serum samples between the two groups was 10 and 40 respectively. Ultra-performance liquid chromatography tandem high-resolution mass spectrometry was used to analyze placental metabolomics. Then, we verified the differentially expressed proteins and metabolites, both placental and blood serum, in the first, second, and third trimesters. Results Metabolomic analysis of placental tissue revealed that fatty acid metabolism and primary bile acid biosynthesis were enriched. In the integrated proteomic and metabolomic analysis of placental tissue, peroxisomal acyl-CoA oxidase 1 (ACOX1), L-palmitoylcarnitine, and glycocholic acid were found to be three potential biomarkers. In a follow–up analysis, expression levels of both placental and serum ACOX1, L-palmitoylcarnitine, and glycocholic acid in both placenta and serum were found to be significantly higher in third-trimester ICP patients; the areas under the ROC curves were 0.823, 0.896, and 0.985, respectively. Expression levels of serum ACOX1, L-palmitoylcarnitine, and glycocholic acid were also significantly higher in first- and second-trimester ICP patients; the areas under the ROC curves were 0.726, 0.657, and 0.686 in the first trimester and 0.718, 0.727, and 0.670 in the second trimester, respectively. Together, levels of the three aforementioned biomarkers increased the value for diagnosing and predicting ICP (AUC: 0.993 for the third, 0.891 for the second, and 0.932 for the first trimesters). Conclusions L-palmitoylcarnitine, ACOX1, and glycocholic acid levels taken together may serve as a new biomarker set for the diagnosis and prediction of ICP.
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Affiliation(s)
- Ruirui Dong
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, China
| | - Ningzhen Ye
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, China
| | - Shaojie Zhao
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, China
| | - Gaoying Wang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, China
| | - Yan Zhang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, China
| | - Tiejun Wang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, China
| | - Ping Zou
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, China
| | - Jing Wang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, China
| | - Tingting Yao
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, China
| | - Minjian Chen
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China.,Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Conghua Zhou
- School of Computer Science and Telecommunication Engineering, Jiangsu University, Zhenjiang, China
| | - Ting Zhang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, China
| | - Liang Luo
- The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Wuxi, China
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7
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Orozco-Aguilar J, Simon F, Cabello-Verrugio C. Redox-Dependent Effects in the Physiopathological Role of Bile Acids. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:4847941. [PMID: 34527174 PMCID: PMC8437588 DOI: 10.1155/2021/4847941] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 08/17/2021] [Indexed: 12/17/2022]
Abstract
Bile acids (BA) are recognized by their role in nutrient absorption. However, there is growing evidence that BA also have endocrine and metabolic functions. Besides, the steroidal-derived structure gives BA a toxic potential over the biological membrane. Thus, cholestatic disorders, characterized by elevated BA on the liver and serum, are a significant cause of liver transplant and extrahepatic complications, such as skeletal muscle, central nervous system (CNS), heart, and placenta. Further, the BA have an essential role in cellular damage, mediating processes such as membrane disruption, mitochondrial dysfunction, and the generation of reactive oxygen species (ROS) and oxidative stress. The purpose of this review is to describe the BA and their role on hepatic and extrahepatic complications in cholestatic diseases, focusing on the association between BA and the generation of oxidative stress that mediates tissue damage.
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Affiliation(s)
- Josué Orozco-Aguilar
- Laboratory of Muscle Pathology, Fragility, and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
| | - Felipe Simon
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile
- Millennium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Universidad de Chile, Santiago 8370146, Chile
- Laboratory of Integrative Physiopathology, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile
| | - Claudio Cabello-Verrugio
- Laboratory of Muscle Pathology, Fragility, and Aging, Department of Biological Sciences, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370146, Chile
- Millennium Institute on Immunology and Immunotherapy, Santiago 8370146, Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
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8
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Molaei P, Vaseghi S, Entezari M, Hashemi M, Nasehi M. The Effect of NeuroAid (MLC901) on Cholestasis-Induced Spatial Memory Impairment with Respect to the Expression of BAX, BCL-2, BAD, PGC-1α and TFAM Genes in the Hippocampus of Male Wistar Rats. Neurochem Res 2021; 46:2154-2166. [PMID: 34031842 DOI: 10.1007/s11064-021-03353-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 05/10/2021] [Accepted: 05/12/2021] [Indexed: 12/31/2022]
Abstract
Cholestasis is a bile flow reduction that is induced following Bile Duct Ligation (BDL). Cholestasis impairs memory and induces apoptosis. Apoptosis consists of two pathways: intrinsic and extrinsic. The intrinsic pathway is modulated by BCL-2 (B cell lymphoma-2) family proteins. BCL-2 (a pro-survival BCL-2 protein) has anti-apoptotic effect, while BAD (BCL-2-associated death) and BAX (BCL-2-associated X), the other members of BCL-2 family have pro-apoptotic effect. Furthermore, TFAM (mitochondrial transcriptional factor A) is involved in transcription and maintenance of mitochondrial DNA and PGC-1α (peroxisome proliferator-activated receptor γ coactivator-1α) is a master regulator of mitochondrial biogenesis. On the other hand, NeuroAid is a Traditional Chinese Medicine with neuroprotective and anti-apoptosis effects. In this study, we evaluated the effect of cholestasis on spatial memory and expression of BCL-2, BAD, BAX, TFAM, and PGC-1α in the hippocampus of rats. Additionally, we assessed the effect of NeuroAid on cholestasis-induced cognitive and genetic alterations. Cholestasis was induced by BDL surgery and NeuroAid was injected intraperitoneal at the dose of 0.4 mg/kg. Furthermore, spatial memory was evaluated using Morris Water Maze (MWM) apparatus. The results showed cholestasis impaired spatial memory, increased the expression of BAD and BAX, decreased the expression of TFAM and PGC-1α, and did not alter the expression of BCL-2. Also, NeuroAid decreased the expression of BAD and BAX and increased the expression of TFAM, PGC-1α, and BCL-2. In conclusion, cholestasis impaired spatial memory and increased the expression of pro-apoptotic genes. Also, cholestasis decreased the expression of TFAM and PGC-1α. Interestingly, NeuroAid restored the effects of cholestasis.
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Affiliation(s)
- Pejman Molaei
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Salar Vaseghi
- Cognitive and Neuroscience Research Center (CNRC), Amir-Almomenin Hospital, Tehran Medical Sciences, Islamic Azad University, P.O. Box: 13145-784, Tehran, Iran
- Department of Cognitive Neuroscience, Institute for Cognitive Science Studies (ICSS), Tehran, Iran
| | - Maliheh Entezari
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mehrdad Hashemi
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mohammad Nasehi
- Cognitive and Neuroscience Research Center (CNRC), Amir-Almomenin Hospital, Tehran Medical Sciences, Islamic Azad University, P.O. Box: 13145-784, Tehran, Iran.
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9
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Song F, Chen Y, Chen L, Li H, Cheng X, Wu W. Association of Elevated Maternal Serum Total Bile Acids With Low Birth Weight and Intrauterine Fetal Growth Restriction. JAMA Netw Open 2021; 4:e2117409. [PMID: 34279647 PMCID: PMC8290304 DOI: 10.1001/jamanetworkopen.2021.17409] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
IMPORTANCE Bile acids play essential roles in metabolic modulation. Excessive serum total bile acid (sTBA) levels during pregnancy are associated with adverse perinatal outcomes; however, their association with the risk of intrauterine growth restriction (IUGR) remains unclear. OBJECTIVE To investigate the association between maternal sTBA concentration during pregnancy and the risk of IUGR. DESIGN, SETTING, AND PARTICIPANTS This retrospective cohort study included pregnant individuals who delivered live singleton neonates and had regular antenatal examination records available at a hospital-based center in Shanghai, China, from 2014 to 2018. Data were analyzed from July to November 2020. EXPOSURES Maternal sTBA concentration during pregnancy. MAIN OUTCOMES AND MEASURES Fetal birth weight and probability of low birth weight (LBW) and IUGR. RESULTS This study included 68 245 singleton pregnancies with live births for analysis. The mean (SD) age of the pregnant individuals was 30.5 (3.8) years, 67 168 patients (98.4%) were Han, and 50 155 (73.5%) were nulliparous. Nonlinear regression models suggested that there was an inverted J-shaped association between maternal sTBA level during pregnancy and fetal birth weight, with a steep decrease in birth weight at high sTBA levels (estimated mean [SE] birth weight for sTBA of 40.8 ug/mL, 2879 [39.9] g) and greater birth weights at lower sTBA levels (estimated mean [SE] birth weight for sTBA 0.4 μg/mL, 3290 [3.9] g; and for 4.1 μg/mL, 3334 [1.6] g). Lower birth weight and a higher incidence of IUGR were observed in patients with gestational hypercholanemia (sTBA ≥4.08 μg/mL) compared with those without gestational hypercholanemia (birth weight: estimated adjusted mean [SE], 3309 [3.32] vs 3338 [0.80] g; P = .005; incidence of IUGR: 62 of 4467 [1.4%] vs 312 of 63 778 [0.5%]; P < .001). Moreover, compared with patients with sTBA concentrations of less than 4.08 μg/mL, those with gestational hypercholanemia had an increased risk of LBW (adjusted odds ratio [aOR], 1.29; 95% CI, 1.09-1.53) and IUGR (aOR, 2.18; 95% CI, 1.62-2.91). In addition, there was an additive interaction between hypertensive disorders in pregnancy (HDP) and hypercholanemia on LBW and IUGR risk. The highest risks of LBW and IUGR were found in pregnant individuals with both HDP and hypercholanemia compared with those with normotensive pregnancies with sTBA concentrations less than 4.08 μg/mL (LBW: aOR, 9.13; 95% CI, 6.88-12.12; IUGR: aOR, 19.14; 95% CI, 12.09-30.28). CONCLUSIONS AND RELEVANCE This study found that gestational hypercholanemia was associated with an increased risk of LBW and IUGR, especially in pregnant individuals with HDP. Therefore, it would be meaningful to monitor sTBA concentration during the follow-up of pregnancies with potential IUGR.
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Affiliation(s)
- Fuzhen Song
- The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Yuanyuan Chen
- Hongqiao Street Community Health Service Center, Changning District, Shanghai, China
| | - Lei Chen
- The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Huan Li
- Department of Gynecology and Obstetrics, Songjiang Maternity and Child Health Hospital, Shanghai, China
| | - Xiajin Cheng
- The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Weibin Wu
- The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
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10
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Ojeda ML, Nogales F, Romero-Herrera I, Carreras O. Fetal Programming Is Deeply Related to Maternal Selenium Status and Oxidative Balance; Experimental Offspring Health Repercussions. Nutrients 2021; 13:nu13062085. [PMID: 34207090 PMCID: PMC8233903 DOI: 10.3390/nu13062085] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/08/2021] [Accepted: 06/15/2021] [Indexed: 12/12/2022] Open
Abstract
Nutrients consumed by mothers during pregnancy and lactation can exert permanent effects upon infant developing tissues, which could represent an important risk factor for diseases during adulthood. One of the important nutrients that contributes to regulating the cell cycle and tissue development and functionality is the trace element selenium (Se). Maternal Se requirements increase during gestation and lactation. Se performs its biological action by forming part of 25 selenoproteins, most of which have antioxidant properties, such as glutathione peroxidases (GPxs) and selenoprotein P (SELENOP). These are also related to endocrine regulation, appetite, growth and energy homeostasis. In experimental studies, it has been found that low dietary maternal Se supply leads to an important oxidative disruption in dams and in their progeny. This oxidative stress deeply affects gestational parameters, and leads to intrauterine growth retardation and abnormal development of tissues, which is related to endocrine metabolic imbalance. Childhood pathologies related to oxidative stress during pregnancy and/or lactation, leading to metabolic programing disorders like fetal alcohol spectrum disorders (FASD), have been associated with a low maternal Se status and intrauterine growth retardation. In this context, Se supplementation therapy to alcoholic dams avoids growth retardation, hepatic oxidation and improves gestational and breastfeeding parameters in FASD pups. This review is focused on the important role that Se plays during intrauterine and breastfeeding development, in order to highlight it as a marker and/or a nutritional strategy to avoid diverse fetal programming disorders related to oxidative stress.
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11
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Huang W, Zhou J, Guo J, Hu W, Chen G, Li B, Wen Y, Jiang Y, Fu K, Bi H, Zhang Y, Wang H. Dexamethasone induces an imbalanced fetal-placental-maternal bile acid circulation: involvement of placental transporters. BMC Med 2021; 19:87. [PMID: 33827559 PMCID: PMC8028715 DOI: 10.1186/s12916-021-01957-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 03/08/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND The use of prenatal dexamethasone remains controversial. Our recent studies found that prenatal dexamethasone exposure can induce maternal intrahepatic cholestasis and have a lasting adverse influence on bile acid (BA) metabolism in the offspring. The purpose of this study was to investigate the effects of dexamethasone on fetal-placental-maternal BA circulation during the intrauterine period, as well as its placental mechanism. METHODS Clinical data and human placentas were collected and analyzed. Pregnant Wistar rats were injected subcutaneously with dexamethasone (0.2 mg/kg per day) from gestational day 9 to 20. The metabolomic spectra of BAs in maternal and fetal rat serum were determined by LC-MS. Human and rat placentas were collected for histological and gene expression analysis. BeWo human placental cell line was treated with dexamethasone (20-500 nM). RESULTS Human male neonates born after prenatal dexamethasone treatment showed an increased serum BA level while no significant change was observed in females. Moreover, the expression of organic anion transporter polypeptide-related protein 2B1 (OATP2B1) and breast cancer resistance protein (BCRP) in the male neonates' placenta was decreased, while multidrug resistance-associated protein 4 (MRP4) was upregulated. In experimental rats, dexamethasone increased male but decreased female fetal serum total bile acid (TBA) level. LC-MS revealed that primary BAs were the major component that increased in both male and female fetal serum, and all kinds of BAs were significantly increased in maternal serum. The expression of Oatp2b1 and Bcrp were reduced, while Mrp4 expression was increased in the dexamethasone-treated rat placentas. Moreover, dexamethasone increased glucocorticoid receptor (GR) expression and decreased farnesoid X receptor (FXR) expression in the rat placenta. In BeWo cells, dexamethasone induced GR translocation into the nucleus; decreased FXR, OATP2B1, and BCRP expression; and increased MRP4 expression. Furthermore, GR was verified to mediate the downregulation of OATP2B1, while FXR mediated dexamethasone-altered expression of BCRP and MRP4. CONCLUSIONS By affecting placental BA transporters, dexamethasone induces an imbalanced fetal-placental-maternal BA circulation, as showed by the increase of primary BA levels in the fetal serum. This study provides an important experimental and theoretical basis for elucidating the mechanism of dexamethasone-induced alteration of maternal and fetal BA metabolism and for exploring early prevention and treatment strategies.
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Affiliation(s)
- Wen Huang
- Department of Obstetrics and Gynaecology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.,Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan, 430071, China
| | - Jin Zhou
- Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan, 430071, China
| | - Juanjuan Guo
- Department of Obstetrics and Gynaecology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Diseases, Wuhan, 430071, China
| | - Wen Hu
- Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan, 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Diseases, Wuhan, 430071, China
| | - Guanghui Chen
- Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan, 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Diseases, Wuhan, 430071, China
| | - Bin Li
- Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan, 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Diseases, Wuhan, 430071, China
| | - Yajie Wen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Yimin Jiang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Kaili Fu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Huichang Bi
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
| | - Yuanzhen Zhang
- Department of Obstetrics and Gynaecology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China. .,Hubei Provincial Key Laboratory of Developmentally Originated Diseases, Wuhan, 430071, China.
| | - Hui Wang
- Department of Obstetrics and Gynaecology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China. .,Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan, 430071, China. .,Hubei Provincial Key Laboratory of Developmentally Originated Diseases, Wuhan, 430071, China.
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12
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Zou S, Dong R, Wang J, Liang F, Zhu T, Zhao S, Zhang Y, Wang T, Zou P, Li N, Wang Y, Chen M, Zhou C, Zhang T, Luo L. Use of data-independent acquisition mass spectrometry for comparative proteomics analyses of sera from pregnant women with intrahepatic cholestasis of pregnancy. J Proteomics 2021; 236:104124. [PMID: 33545297 DOI: 10.1016/j.jprot.2021.104124] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 12/14/2020] [Accepted: 01/19/2021] [Indexed: 02/06/2023]
Abstract
We used data-independent acquisition (DIA) proteomics technology followed by ELISAs and automated biochemical analyses to identify and validate protein expression levels in Intrahepatic Cholestasis of Pregnancy (ICP) and healthy pregnant controls. We employed bioinformatics to identify metabolic processes associated with differentially expressed proteins.The expression levels of two proteins (S100-A9 and the L-lactate dehydrogenase A chain) were significantly higher in ICP patients than in controls; the areas under the receiver operating characteristic (ROC) curves (AUCs) were 0.774 and 0.828, respectively. The expression levels of two other proteins (apolipoprotein A-I and cholinesterase) were significantly lower in patients, with values of 0.900 and 0.842, respectively. Multiple logistic regression showed that a combination of the levels of the four proteins optimized the AUC (0.962), thus more reliably diagnosing ICP. The levels of all four proteins were positively associated with that of total bile acids. Bioinformatics analyses indicated that the four proteins principally affected neutrophil activation involved in the immune response, cell adhesion, lipoprotein metabolism, and the PPAR signaling pathway. SIGNIFICANCE: This preliminary work improves our understanding of changes in serum levels of protein in pregnant women with ICP. The four proteins may serve as novel noninvasive biomarkers for ICP.
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Affiliation(s)
- Shaohan Zou
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou 310000, China
| | - Ruirui Dong
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi 214002, China
| | - Jing Wang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi 214002, China
| | - Fengbing Liang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou 310000, China
| | - Tingting Zhu
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou 310000, China
| | - Shaojie Zhao
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi 214002, China
| | - Yan Zhang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi 214002, China
| | - Tiejun Wang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi 214002, China
| | - Ping Zou
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi 214002, China
| | - Na Li
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi 214002, China
| | - Yao Wang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi 214002, China
| | - Minjian Chen
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Conghua Zhou
- School of Computer Science and Telecommunication Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Ting Zhang
- The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi 214002, China.
| | - Liang Luo
- The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Wuxi 214002, China.
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13
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Li C, Zhang S, Li L, Hu Q, Ji S. Ursodeoxycholic Acid Protects Against Arsenic Induced Hepatotoxicity by the Nrf2 Signaling Pathway. Front Pharmacol 2020; 11:594496. [PMID: 33178028 PMCID: PMC7596389 DOI: 10.3389/fphar.2020.594496] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 09/16/2020] [Indexed: 12/13/2022] Open
Abstract
Arsenic is ubiquitous toxic metalloid responsible for many human diseases all over the world. Contrastingly, Ursodeoxycholic acid (UDCA) has been suggested as efficient antioxidant in various liver diseases. However, there are no reports of the effects of UDCA on arsenious acid [As(III)]-induced hepatotoxicity. The objective of this study is to elucidate the protective actions of UDCA on As(III)-induced hepatotoxicity and explore its controlling role in biomolecular mechanisms in vivo and in vitro. The remarkable liver damage induced by As(III) was ameliorated by treatment with UDCA, as reflected by reduced histopathological changes of liver and elevation of serum AST, ALT levels. UDCA play a critical role in stabilization of cellular membrane potential, inhibition of apoptosis and LDH leakage in LO2 cells. Meanwhile, the activities of SOD, CAT and GSH-Px and the level of TSH, GSH were enhanced with UDCA administration, while the accumulations of intracellular ROS, MDA and rate of GSSG/GSH were decreased in vivo and in vitro. Further study disclosed that UDCA significantly inhibited As(III)-induced apoptosis through increasing the expression of Bcl-2 and decreasing the expression of Bax, p53, Cyt C, Cleaved caspase-3 and 9. Moreover, UDCA promoted the expression of nuclear Nrf2, HO-1, and NQO1, although arsenic regulated nuclear translocation of Nrf2 positively. When Nrf2 was silenced, the protective effect of UDCA was abolished. Collectively, the results of this study showed that UDCA protects hepatocytes antagonize As(III)-induced cytotoxicity, and its mechanism may be related to activation of Nrf2 signaling.
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Affiliation(s)
- Chao Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,NMPA Key Laboratory for Quality Control of Traditional Chinese Medicine, Shanghai Institute for Food and Drug Control, Shanghai, China
| | - Sheng Zhang
- NMPA Key Laboratory for Quality Control of Traditional Chinese Medicine, Shanghai Institute for Food and Drug Control, Shanghai, China.,School of Pharmacy, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Liming Li
- NMPA Key Laboratory for Quality Control of Traditional Chinese Medicine, Shanghai Institute for Food and Drug Control, Shanghai, China
| | - Qing Hu
- NMPA Key Laboratory for Quality Control of Traditional Chinese Medicine, Shanghai Institute for Food and Drug Control, Shanghai, China
| | - Shen Ji
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,NMPA Key Laboratory for Quality Control of Traditional Chinese Medicine, Shanghai Institute for Food and Drug Control, Shanghai, China
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14
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Wei S, Ma X, Zhao Y. Mechanism of Hydrophobic Bile Acid-Induced Hepatocyte Injury and Drug Discovery. Front Pharmacol 2020; 11:1084. [PMID: 32765278 PMCID: PMC7378542 DOI: 10.3389/fphar.2020.01084] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 07/03/2020] [Indexed: 12/13/2022] Open
Abstract
Cholestatic liver disease is caused by the obstruction of bile synthesis, transport, and excretion in or outside the liver by a variety of reasons. Long-term persistent cholestasis in the liver can trigger inflammation, necrosis, or apoptosis of hepatocytes. Bile acid nuclear receptors have received the most attention for the treatment of cholestasis, while the drug development for bile acid nuclear receptors has made considerable progress. However, the targets regulated by bile acid receptor drugs are limited. Thus, as anticipated, intervention in the expression of bile acid nuclear receptors alone will not yield satisfactory clinical results. Therefore, this review comprehensively summarized the literature related to cholestasis, analyzed the molecular mechanism that bile acid damages cells, and status of drug development. It is hoped that this review will provide some reference for the research and development of drugs for cholestasis treatment in the future.
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Affiliation(s)
- Shizhang Wei
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Department of Pharmacy, PLA General Hospital, Beijing, China
| | - Xiao Ma
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yanling Zhao
- Department of Pharmacy, PLA General Hospital, Beijing, China
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15
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Ursodeoxycholic acid improves feto-placental and offspring metabolic outcomes in hypercholanemic pregnancy. Sci Rep 2020; 10:10361. [PMID: 32587408 PMCID: PMC7316783 DOI: 10.1038/s41598-020-67301-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 04/14/2020] [Indexed: 11/08/2022] Open
Abstract
Perturbations in the intrauterine environment can result in lifelong consequences for metabolic health during postnatal life. Intrahepatic cholestasis of pregnancy (ICP) can predispose offspring to metabolic disease in adulthood, likely due to a combination of the effects of increased bile acids, maternal dyslipidemia and deranged maternal and fetal lipid homeostasis. Whereas ursodeoxycholic acid (UDCA) is a commonly used treatment for ICP, no studies have yet addressed whether it can also prevent the metabolic effects of ICP in the offspring and fetoplacental unit. We therefore analyzed the lipid profile of fetal serum from untreated ICP, UDCA-treated ICP and uncomplicated pregnancies and found that UDCA ameliorates ICP-associated fetal dyslipidemia. We then investigated the effects of UDCA in a mouse model of hypercholanemic pregnancy and showed that it induces hepatoprotective mechanisms in the fetal liver, reduces hepatic fatty acid synthase (Fas) expression and improves glucose tolerance in the adult offspring. Finally, we showed that ICP leads to epigenetic changes in pathways of relevance to the offspring phenotype. We therefore conclude that UDCA can be used as an intervention in pregnancy to reduce features of metabolic disease in the offspring of hypercholanemic mothers.
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16
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Martinefski MR, Rodriguez MR, Buontempo F, Lucangioli SE, Bianciotti LG, Tripodi VP. Coenzyme Q 10 supplementation: A potential therapeutic option for the treatment of intrahepatic cholestasis of pregnancy. Eur J Pharmacol 2020; 882:173270. [PMID: 32534074 DOI: 10.1016/j.ejphar.2020.173270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 06/05/2020] [Accepted: 06/08/2020] [Indexed: 12/12/2022]
Abstract
Intrahepatic cholestasis of pregnancy (ICP) is a pregnancy specific liver disease characterized by pruritus, elevated serum bile acids and abnormal liver function that may be associated with severe adverse pregnancy outcomes. We previously reported that plasma coenzyme Q10 (CoQ10) is decreased in women with ICP as it is its analogue coenzyme Q9 (CoQ9) in rats with ethinyl estradiol (EE)-induced cholestasis. The aim of the present study was to evaluate the possible therapeutic role of CoQ10 in experimental hepatocellular cholestasis and to compare it with ursodeoxycholic acid (UDCA) supplementation. Bile acids, CoQ9, CoQ10, transaminases, alkaline phosphatase, retinol, α-tocopherol, ascorbic acid, thiobarbituric acid reactive substances, carbonyls, glutathione, superoxide dismutase and catalase were assessed in plasma, liver and/or hepatic mitochondria in control and cholestatic rats supplemented with CoQ10 (250 mg/kg) administered alone or combined with UDCA (25 mg/kg). CoQ10 supplementation prevented bile flow decline (P < 0.05) and the increase in serum alkaline phosphatase and bile acids, particularly lithocholic acid (P < 0.05) in cholestatic rats. Furthermore, it also improved oxidative stress parameters in the liver, increased both CoQ10 and CoQ9 plasma levels and partially prevented the fall in α-tocopherol (P < 0.05). UDCA also prevented cholestasis, but it was less efficient than CoQ10 to improve the liver redox environment. Combined administration of CoQ10 and UDCA resulted in additive effects. In conclusion, present findings show that CoQ10 supplementation attenuated EE-induced cholestasis by promoting a favorable redox environment in the liver, and further suggest that it may represent an alternative therapeutic option for ICP.
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Affiliation(s)
- Manuela R Martinefski
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Tecnología Farmacéutica, Buenos Aires, Argentina
| | - Myrian R Rodriguez
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Biológicas, INIGEM, UBA-CONICET, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, CONICET, Argentina
| | - Fabián Buontempo
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Tecnología Farmacéutica, Buenos Aires, Argentina
| | - Silvia E Lucangioli
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Tecnología Farmacéutica, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, CONICET, Argentina
| | - Liliana G Bianciotti
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Biológicas, INIGEM, UBA-CONICET, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, CONICET, Argentina.
| | - Valeria P Tripodi
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Tecnología Farmacéutica, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, CONICET, Argentina.
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17
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Nasehi M, Torabinejad S, Hashemi M, Vaseghi S, Zarrindast MR. Effect of cholestasis and NeuroAid treatment on the expression of Bax, Bcl-2, Pgc-1α and Tfam genes involved in apoptosis and mitochondrial biogenesis in the striatum of male rats. Metab Brain Dis 2020; 35:183-192. [PMID: 31773435 DOI: 10.1007/s11011-019-00508-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 10/16/2019] [Indexed: 12/13/2022]
Abstract
Cholestasis means impaired bile synthesis or secretion. In fact, it is a bile flow reduction following Bile Duct Ligation (BDL). Cholestasis has a main role in necrosis and apoptosis. Apoptosis is a form of programmed cell death that has intrinsic and extrinsic pathways. The intrinsic pathway is mediated by Bcl-2 (B cell lymphoma-2) proteins which integrate death and survival signals. Bcl-2 has anti-apoptotic and Bax has pro-apoptotic effects. Also, striatum is one of the brain regions that has high expressions of Bcl-2 proteins. Moreover, Tfam and Pgc-1α are involved in mitochondrial biogenesis. On the other hand, NeuroAid, is a drug that has neuroprotective and anti-apoptosis effects. In this study, using quantitative PCR, we measured the expression of all these genes in the striatum of male rats following BDL and NeuroAid administration. Results showed, BDL increased the expression of Bax and Tfam and decreased the expression of Bcl-2. NeuroAid restored the effect of BDL on the expression of Bax, while did not alter the effect of BDL on Bcl-2. In addition, it increased the expression of Tfam that was previously elevated by BDL and raised the expression of Tfam in normal rats. Both BDL and NeuroAid, had no effect on Pgc-1α. In conclusion, cholestasis increased the expression of Bax and decreased the expression of Bcl-2, and this effect may have related to enhanced susceptibility of mitochondrial pathways following oxidative stress. Tfam expression was increased following cholestasis and this effect may have related to cellular compensatory mechanisms against high accumulation of free radicals or mitochondrial biogenesis failure. Furthermore, NeuroAid may play a role against apoptosis and can be used to increase mitochondrial biogenesis.
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Affiliation(s)
- Mohammad Nasehi
- Cognitive and Neuroscience Research Center (CNRC), Tehran Medical Sciences, Islamic Azad University, P.O. Box 13145-784, Tehran, Iran.
| | - Sepehr Torabinejad
- Department of Genetics, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mehrdad Hashemi
- Department of Genetics, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Salar Vaseghi
- Cognitive and Neuroscience Research Center (CNRC), Tehran Medical Sciences, Islamic Azad University, P.O. Box 13145-784, Tehran, Iran
| | - Mohammad-Reza Zarrindast
- Department of Pharmacology School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Institute for Cognitive Science Studies (ICSS), Tehran, Iran
- Department of Neuroendocrinology, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
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18
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Wei S, Ma X, Zhao Y. Mechanism of Hydrophobic Bile Acid-Induced Hepatocyte Injury and Drug Discovery. Front Pharmacol 2020. [PMID: 32765278 DOI: 10.3389/fphar.2020.01084/bibtex] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023] Open
Abstract
Cholestatic liver disease is caused by the obstruction of bile synthesis, transport, and excretion in or outside the liver by a variety of reasons. Long-term persistent cholestasis in the liver can trigger inflammation, necrosis, or apoptosis of hepatocytes. Bile acid nuclear receptors have received the most attention for the treatment of cholestasis, while the drug development for bile acid nuclear receptors has made considerable progress. However, the targets regulated by bile acid receptor drugs are limited. Thus, as anticipated, intervention in the expression of bile acid nuclear receptors alone will not yield satisfactory clinical results. Therefore, this review comprehensively summarized the literature related to cholestasis, analyzed the molecular mechanism that bile acid damages cells, and status of drug development. It is hoped that this review will provide some reference for the research and development of drugs for cholestasis treatment in the future.
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Affiliation(s)
- Shizhang Wei
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Department of Pharmacy, PLA General Hospital, Beijing, China
| | - Xiao Ma
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yanling Zhao
- Department of Pharmacy, PLA General Hospital, Beijing, China
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19
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Ageing corn results in the pale-coloured egg yolks with decreased polyunsaturated fatty acids. Anim Feed Sci Technol 2019. [DOI: 10.1016/j.anifeedsci.2019.114242] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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Wang P, Song Y, Zhong H, Lin S, Zhang X, Li J, Che L, Feng B, Lin Y, Xu S, Zhuo Y, Wu D, Burrin DG, Fang Z. Transcriptome Profiling of Placenta through Pregnancy Reveals Dysregulation of Bile Acids Transport and Detoxification Function. Int J Mol Sci 2019; 20:ijms20174099. [PMID: 31443432 PMCID: PMC6747679 DOI: 10.3390/ijms20174099] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 08/17/2019] [Accepted: 08/19/2019] [Indexed: 12/27/2022] Open
Abstract
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 (ABCB11), organic anion-transporting polypeptide 1A2 (OATP1A2), carbonic anhydrase II (CA2), Na+-HCO3− cotransporter (NBC1), and hydroxysteroid sulfotransferases (SULT2A1) play an important role in bile acids transport and sulfation in placentas during pregnancy. We also found the potential regulation role of ALDBSSCG0000000220 and XLOC_1301271 on placental SULT2A1. 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.
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Affiliation(s)
- Peng Wang
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Yumo Song
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Heju Zhong
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Sen Lin
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiaoling Zhang
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Jian Li
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Lianqiang Che
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Bin Feng
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Yan Lin
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Shengyu Xu
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Yong Zhuo
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - De Wu
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Douglas G Burrin
- USDA/ARS Children's Nutrition Research Center, Section of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Zhengfeng Fang
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China.
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21
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Chao S, Xiaojun L, Haizhen W, Ludi F, Shaozhen L, Zhiwen S, Weiliang H, Chunhong J, Ying W, Fan W, Yunfei G. Lithocholic acid activates mTOR signaling inducing endoplasmic reticulum stress in placenta during intrahepatic cholestasis of pregnancy. Life Sci 2018; 218:300-307. [PMID: 30605648 DOI: 10.1016/j.lfs.2018.12.050] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 12/12/2018] [Accepted: 12/27/2018] [Indexed: 12/23/2022]
Abstract
AIMS Intrahepatic cholestasis of pregnancy (ICP) is a pregnancy-specific disorder, which increases risks of adverse fetal outcomes. However, the pathophysiology is not fully understood. Here, we explored the roles of mTOR signaling and ER stress in placenta during ICP. MATERIALS AND METHODS Placental tissues were collected from normal and ICP pregnancies. mTOR signaling and endoplasmic reticulum stress were detected by immunohistochemistry in the placenta. The human placenta trophoblast cell line HTR-8/SVneo was used in vitro experiment. KEY FINDINGS ICP placenta displayed histological abnormalities with fewer trophoblasts. Moreover, the expression of Bip and the phosphorylation of pS6(S235/236) or pAkt(S473) were higher comparing with normal placenta. In in vitro studies, the bile acids specifically to lithocholic acid rather than taurocholic acid or ursodeoxycholic acid, drastically increased the phosphorylation of pS6K1(T389), pS6(S235/236), or pAkt(S473), whereas the mTOR inhibitor can prohibit the upregulation. Similarly, the expressions of IRE1α and BiP increased sharply under lithocholic acid (20 μM) administration, while the same inhibitor can also decrease the expression. Additionally, transmission electron microscopy showed enlarged endoplasmic reticulum lumen under the lithocholic acid treatment. Furthermore, the cell viability reduced sharply under treatment with different dose of lithocholic acid. The mTOR inhibitor can reverse the decrease of cell viability to some extent. SIGNIFICANCE Bile acid can activate mTOR signaling which resulted in endoplasmic reticulum stress, leading to trophocyte viability decrease. mTOR pathway activation may be associated with the pathophysiology of ICP.
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Affiliation(s)
- Sheng Chao
- Division of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Lin Xiaojun
- Division of Pediatrics, The Third Affiliated Hospital of Guangzhou medical University, Guangzhou 510150, China
| | - Wang Haizhen
- Division of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Fu Ludi
- Laboratory Animal Center, Guangzhou university of Chinese Medicine, Guangzhou 510006, China
| | - Liang Shaozhen
- Division of Pediatrics, The Third Affiliated Hospital of Guangzhou medical University, Guangzhou 510150, China
| | - Su Zhiwen
- Division of Pediatrics, The Third Affiliated Hospital of Guangzhou medical University, Guangzhou 510150, China
| | - Huang Weiliang
- Division of Pediatrics, The Third Affiliated Hospital of Guangzhou medical University, Guangzhou 510150, China
| | - Jia Chunhong
- Division of Pediatrics, The Third Affiliated Hospital of Guangzhou medical University, Guangzhou 510150, China
| | - Wang Ying
- Department of Pharmacy, The Third Affiliated Hospital of Guangzhou medical University, Guangzhou 510150, China
| | - Wu Fan
- Division of Pediatrics, The Third Affiliated Hospital of Guangzhou medical University, Guangzhou 510150, China.
| | - Gao Yunfei
- Division of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
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22
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Wang C, Yang M, Zhao J, Li X, Xiao X, Zhang Y, Jin X, Liao M. Bile salt (glycochenodeoxycholate acid) induces cell survival and chemoresistance in hepatocellular carcinoma. J Cell Physiol 2018; 234:10899-10906. [PMID: 30548625 DOI: 10.1002/jcp.27905] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 10/24/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Chengzhi Wang
- Key Laboratory of Nanobiological Technology of Chinese Ministry of Health, Xiangya Hospital, Central South University Changsha Hunan People's Republic of China
- Department of Nephrology Blood Purification Center, Xiangya Hospital, Central South University Changsha Hunan People's Republic of China
| | - Manyi Yang
- Key Laboratory of Nanobiological Technology of Chinese Ministry of Health, Xiangya Hospital, Central South University Changsha Hunan People's Republic of China
| | - Jinfeng Zhao
- Key Laboratory of Nanobiological Technology of Chinese Ministry of Health, Xiangya Hospital, Central South University Changsha Hunan People's Republic of China
| | - Xia Li
- Department of Nephrology Blood Purification Center, Xiangya Hospital, Central South University Changsha Hunan People's Republic of China
| | - Xiangcheng Xiao
- Department of Nephrology Blood Purification Center, Xiangya Hospital, Central South University Changsha Hunan People's Republic of China
| | - Yang Zhang
- Hepatobiliary and Enteric Surgery Center Xiangya Hospital, Central South University Changsha Hunan People's Republic of China
| | - Xin Jin
- Key Laboratory of Nanobiological Technology of Chinese Ministry of Health, Xiangya Hospital, Central South University Changsha Hunan People's Republic of China
| | - Mingmei Liao
- Key Laboratory of Nanobiological Technology of Chinese Ministry of Health, Xiangya Hospital, Central South University Changsha Hunan People's Republic of China
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23
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Macias RIR, Matilla S, Lozano E, Estiú MC, Oude Elferink RP, Marin JJG. Role of the placenta in serum autotaxin elevation during maternal cholestasis. Am J Physiol Gastrointest Liver Physiol 2018; 315:G399-G407. [PMID: 29927323 DOI: 10.1152/ajpgi.00112.2018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Intrahepatic cholestasis of pregnancy (ICP) is frequently accompanied by pruritus, whose etiology has been associated with an enhanced production of lysophosphatidic acid (LPA) by the combined action of phospholipase A1/A2 (PLA1/PLA2) and autotaxin (ATX). Here, we have investigated whether the placenta is involved in LPA release to maternal circulation during ICP. Serum levels of ATX and LPA (determined by ELISA) were elevated in women with ICP, and a correlation between both parameters was found. No relationship between serum levels of ATX or LPA and bile acids was found. Expression levels of ATX and PLA2 were determined by RT-qPCR and Western blot. Placenta ATX but not PLA2 was significantly upregulated in ICP, and a tendency to increase was found at the protein level. A correlation between serum ATX and placental ATX mRNA levels was found. In human placenta at term, ATX was clearly detected (by immunofluorescence) in Hofbauer cells, but only faintly in trophoblast cells. In pregnant rats, the expression of Atx and Pla2 in placenta was lower than in liver. When obstructive cholestasis was imposed by bile duct ligation from day 14 of gestation until term, placenta Atx and Pla2 expression was markedly enhanced, and overexpression was confirmed at the protein level for Pla2, whereas Atx protein was not detected. In conclusion, the placenta substantially participates in LPA production during gestation. This contribution is markedly higher during maternal cholestasis and hence, may be involved in ICP-associated pruritus. NEW & NOTEWORTHY Fetal placental macrophages and, to a lesser extent, trophoblast cells express high levels of autotaxin at term. An increased expression of mRNA and protein autotaxin, the key secretory enzyme responsible for the production of lysophosphatidic acid in serum, has been observed in placentas of women with cholestasis of pregnancy, which supports that the placenta can contribute to an increased production of this pruritogenic compound in women suffering from this liver disease.
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Affiliation(s)
- Rocio I R Macias
- Experimental Hepatology and Drug Targeting (HEVEFARM), IBSAL, University of Salamanca , Salamanca , Spain.,Center for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Carlos III National Institute of Health , Madrid , Spain
| | - Sonia Matilla
- Experimental Hepatology and Drug Targeting (HEVEFARM), IBSAL, University of Salamanca , Salamanca , Spain
| | - Elisa Lozano
- Experimental Hepatology and Drug Targeting (HEVEFARM), IBSAL, University of Salamanca , Salamanca , Spain.,Center for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Carlos III National Institute of Health , Madrid , Spain
| | - Maria C Estiú
- Ramón Sardá Mother's and Children's Hospital , Buenos Aires , Argentina
| | - Ronald P Oude Elferink
- Tytgat Institute for Liver and Intestinal Research, Academic Medical Center, University of Amsterdam , Amsterdam , The Netherlands
| | - Jose J G Marin
- Experimental Hepatology and Drug Targeting (HEVEFARM), IBSAL, University of Salamanca , Salamanca , Spain.,Center for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Carlos III National Institute of Health , Madrid , Spain
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24
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Abd-Elhamid TH, Elgamal DA, Ali SS, Ali FEM, Hassanein EHM, El-Shoura EAM, Hemeida RAM. Reno-protective effects of ursodeoxycholic acid against gentamicin-induced nephrotoxicity through modulation of NF-κB, eNOS and caspase-3 expressions. Cell Tissue Res 2018; 374:367-387. [PMID: 30078101 DOI: 10.1007/s00441-018-2886-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 07/04/2018] [Indexed: 12/13/2022]
Abstract
Gentamicin (GNT) is a potent aminoglycoside antibiotic widely used to treat life-threatening bacterial infections. We aim to investigate the potential protective effect of ursodeoxycholic acid (UDCA) against GNT-induced nephrotoxicity. In this study, 24 male Wistar rats were used and randomly divided into four groups of six animals each. Control group received 0.5% carboxymethyl cellulose orally for 15 days, GNT group received GNT 100 mg/kg/day i.p. for 8 days, UDCA group received UDCA orally for 15 consecutive days at a dose of 60 mg/kg/day suspended in 0.5% carboxymethyl cellulose and UDCA-pretreated group received UDCA orally for 7 days then co-administered with GNT i.p. for 8 days at the same fore-mentioned doses. Serum levels of kidney function parameters (urea, creatinine, uric acid and albumin) were measured. Renal tissues were used to evaluate oxidative stress markers; malonaldehyde (MDA), reduced glutathione (GSH) and the anti-oxidant enzyme superoxide dismutase (SOD) activities and nuclear factor kappa light-chain enhancer of activated B cells (NF-κB) and kidney injury molecule-1 (KIM-1) mRNA levels. Immunohistochemical expression of endothelial nitric oxide synthase (eNOS) and caspase-3 and histological and ultrastructural examination were performed. Treatment with GNT increased the serum levels of renal function parameters and renal MDA, NF-κB and KIM-1 mRNA levels, while it decreased GSH and SOD activities. Marked immunohistochemical expression of caspase-3 was observed after GNT administration while it decreased eNOS expression. Histological and ultrastructural alterations were also evident in renal corpuscles and tubules. In contrast, pretreatment with UDCA reversed changes caused by GNT administration. These results suggest that UDCA ameliorates GNT-induced kidney injury via inhibition of oxidative stress, inflammation and apoptosis.
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Affiliation(s)
- Tarek Hamdy Abd-Elhamid
- Department of Histology and Cell Biology, Faculty of Medicine, Assiut University, Assiut, Egypt.
| | - Dalia A Elgamal
- Department of Histology and Cell Biology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Safaa S Ali
- Department of Histology and Cell Biology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Fares E M Ali
- Department of Pharmacology, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
| | - Emad H M Hassanein
- Department of Pharmacology, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
| | - Ehab A M El-Shoura
- Department of Pharmacology, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
| | - Ramadan A M Hemeida
- Department of Pharmacology, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
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25
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Han F, Xu L, Huang Y, Chen T, Zhou T, Yang L. Magnesium sulphate can alleviate oxidative stress and reduce inflammatory cytokines in rat placenta of intrahepatic cholestasis of pregnancy model. Arch Gynecol Obstet 2018; 298:631-638. [PMID: 30039470 DOI: 10.1007/s00404-018-4850-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 07/07/2018] [Indexed: 11/28/2022]
Abstract
PURPOSE In our study, we try to investigate whether magnesium sulphate (MgSO4) could provide protection against oxidative damage and inflammatory response in rat placenta of intrahepatic cholestasis of pregnancy (ICP) model. METHODS The rat model of ICP was established by injecting s.c. 17α-ethinyl estradiol (EE) daily for 5 days. MgSO4, as an therapeutic drug for ICP, was injected i.p. daily for 3 days. Age-matched pregnant rats served as controls. The level of serum total bile acid (TBA) was measured. The data including the number and weight of offsprings on day 20 of pregnancy were collected. We observed ultrastructural changes of mitochondria and endoplasmic reticulum (ER) in placenta by transmission electron microscope. The antioxidant proteins peroxiredoxin-6 (Prdx6) and nuclear factor erythroid 2-related factor-2 (Nrf2) were analyzed by Western Blot. The inflammatory cytokines including IL-1β, TNF-α and IFN-γ were investigated by real-time PCR (RT-PCR) and enzyme-linked immune-sorbent assay (ELISA). RESULTS The weight of offsprings on day 20 of pregnancy increased in ICP rats treated with MgSO4 (ICP + MG group) compared with that in ICP rats (ICP group). However, the level of TBA was not reduced. The damage of mitochondria and ER was observed in placenta, which was much more slighter in ICP + MgSO4 group as compared with that in ICP group. Prdx6 and Nrf2 were increased, while the inflammatory cytokines including IL-1β, TNF-α and IFN-γ were decreased in ICP + MgSO4 group compared with that in ICP group. CONCLUSIONS MgSO4 had beneficial effect on improving growth of offsprings in rat model of ICP. The protective effect of MgSO4 on alleviating oxidative damage and inflammatory response in placenta may play an important role in the process. MgSO4 may improve the function of placenta.
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Affiliation(s)
- Fei Han
- Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Linhao Xu
- Hangzhou Medical College, Hangzhou, 310053, China
| | - Yaqing Huang
- Zhejiang Provincial People's Hospital, Hangzhou, 310014, China
| | - Tianqi Chen
- People's Hospital of Shaoxing City, Shaoxing, 312000, China
| | - Tiancheng Zhou
- Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Liwei Yang
- Zhejiang Provincial People's Hospital, Hangzhou, 310014, China.
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26
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Abdel-Ghaffar A, Ghanem HM, Ahmed EK, Hassanin OA, Mohamed RG. Ursodeoxycholic acid suppresses the formation of fructose/streptozotocin-induced diabetic cataract in rats. Fundam Clin Pharmacol 2018; 32:627-640. [PMID: 29863796 DOI: 10.1111/fcp.12385] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 05/04/2018] [Accepted: 06/01/2018] [Indexed: 12/11/2022]
Abstract
The main objective of this study was to investigate the potential protective effect of ursodeoxycholic acid (UDCA) on fructose/streptozotocin-induced diabetic cataract in rats. The diabetic model (DM) was induced through the administration of 10% fructose in drinking water for 2 weeks followed by streptozotocin injection (intraperitoneal). One week later, hyperglycemia was assisted and diabetic animals were treated with UDCA either as local eye drops (0.5% solution, four times/day) or orally (100 mg/kg b.w.). Cataract formation was monitored biweekly and scored into four stages. After 12 weeks of treatment, rats were subjected to ophthalmological examination, and then, their blood and lenses were prepared for biochemical analysis of glucose, insulin, reduced glutathione, total antioxidant capacity, malondialdehyde, hydrogen peroxide, caspase-12, and lenticular total proteins. In addition, tertiary structure and conformational changes of lenticular soluble proteins were analyzed using SDS-PAGE and UV absorption while changes in lenticular α-crystallin structure were investigated using intrinsic tryptophan fluorescence. Results demonstrated that both local and oral UDCA restored the normal levels of lens T-AOC, MDA, H2 O2 , and caspase-12 and improved noticeably the levels of the lens GSH and total proteins. In addition, conformational and tertiary structure changes of soluble lens proteins were significantly reduced in UDCA-treated groups. Morphological examination of lenses revealed decreased score of cataract progression in UDCA-treated groups compared to DM animals. It was concluded that UDCA decreased the incidence of diabetic cataract by maintaining the antioxidant status, reducing the endoplasmic reticulum stress, and suppressing the structural changes of soluble lens proteins.
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Affiliation(s)
- Amany Abdel-Ghaffar
- Unit of Biochemistry and Pharmacology, Research Institute of Ophthalmology, El Ahram st, Giza, 12557, Egypt
| | - Hala M Ghanem
- Department of Biochemistry, Faculty of Science, Ain Shams University, Khalifa El-Maamon st, Abbasiya sq., Cairo, 11566, Egypt
| | - Emad K Ahmed
- Department of Biochemistry, Faculty of Science, Ain Shams University, Khalifa El-Maamon st, Abbasiya sq., Cairo, 11566, Egypt
| | - Olfat A Hassanin
- Department of Cornea and Refractive Surgery, Research Institute of Ophthalmology, El Ahram st, Giza, 12557, Egypt
| | - Rawda G Mohamed
- Department of Biochemistry, Faculty of Science, Ain Shams University, Khalifa El-Maamon st, Abbasiya sq., Cairo, 11566, Egypt
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27
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Nogales F, Ojeda ML, Jotty K, Murillo ML, Carreras O. Maternal ethanol consumption reduces Se antioxidant function in placenta and liver of embryos and breastfeeding pups. Life Sci 2017; 190:1-6. [PMID: 28947208 DOI: 10.1016/j.lfs.2017.09.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 09/08/2017] [Accepted: 09/18/2017] [Indexed: 10/18/2022]
Abstract
AIM The fetal alcohol exposition during pregnancy leads to different disorders in offspring, related to the oxidative stress generated by alcohol. It is well-documented that there is an impairment of the antioxidant selenoprotein Glutathione peroxidase (GPx) activity in ethanol offspring during the embryo period, although no-one has described Selenium (Se) status. The aim is to analyze for the first time Se deposits in vivo and Se's biological implication in embryos and placenta after alcohol exposure and in offspring whose mothers continued to drink ethanol during lactation. MATERIALS AND METHODS Se deposits, GPx and glutathione reductase (GR) activity, lipid and protein oxidation and the expression of GPx1 were measured in placenta and liver of both embryos (E-19) and breastfeeding pups (L-21) in control and ethanol groups (20% v/v). KEY FINDINGS Ethanol consumption decreased Se deposits, GPx activity and GPx1 expression, while increasing biomolecular oxidation in placenta and in the liver of E-19 and L-21. The GR/GPx ratio decreased in placenta and in E-19, together with an increase in lipid oxidation, while increased in the liver of L-21 pups with protein oxidation. Ethanol also decreased the GPx1 expression/GPx activity ratio in the liver of E-19 and L-21, indicating that alcohol decreases GPx activity by both depleting Se deposits and promoting GPx inactivation. In placenta GPx activity is proportional to the GPx1 expression found, so the ethanol affects GPx activity in offspring more than in dams. SIGNIFICANCE Therefore, Se supplementation therapy in dams could contribute as an interesting antioxidant that prevents fetal alcohol syndrome.
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Affiliation(s)
- Fátima Nogales
- Department of Physiology, Faculty of Pharmacy, Seville University, 41012 Seville, Spain
| | - M Luisa Ojeda
- Department of Physiology, Faculty of Pharmacy, Seville University, 41012 Seville, Spain
| | - Karick Jotty
- Biology Program, Universidad de Cartagena, Cartagena, Colombia
| | - M Luisa Murillo
- Department of Physiology, Faculty of Pharmacy, Seville University, 41012 Seville, Spain
| | - Olimpia Carreras
- Department of Physiology, Faculty of Pharmacy, Seville University, 41012 Seville, Spain.
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Relationship between early onset severe intrahepatic cholestasis of pregnancy and higher risk of meconium-stained fluid. PLoS One 2017; 12:e0176504. [PMID: 28437442 PMCID: PMC5402936 DOI: 10.1371/journal.pone.0176504] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 04/11/2017] [Indexed: 12/27/2022] Open
Abstract
Background Intrahepatic cholestasis of pregnancy (ICP) is the commonest gestational liver disease. The risk of adverse fetal outcome has been associated with the severity of maternal hypercholanemia after diagnosis. Objective To investigate whether there is a relationship between the severity and timing of onset of hypercholanemia and the risk of meconium-stained amniotic fluid (MSAF) and adverse neonatal events. Study design The study included 382 pregnancies complicated by ICP managed at a referral hospital in Buenos Aires (Argentina) between June 2009 and December 2013. The patients were classified into three groups according to the severity of hypercholanemia at diagnosis; mild (10–19.9 μmol/L), moderate (20–39.9 μmol/L) and severe (≥40 μmol/L). Their clinical characteristics and pregnancy outcomes were investigated in a prospective observational study. Results Higher risk of MSAF was observed when ICP appeared early in gestation or when hypercholanemia was more severe. Taking both parameters into account an MSAF risk factor (MRF) was defined. Based on a model of positive/negative predictive values, a cut-off point of MRF = 3 was selected, which prioritized sensitivity versus specificity. In ICP patients with MRF>3, the probability of MSAF was enhanced 4-fold. An increase in the frequency of MSAF was also associated with higher serum levels at diagnosis of alanine transaminase, alkaline phosphatase and direct bilirubin. Conclusions The risk of MSAF is associated not only with the magnitude of hypercholanemia at diagnosis but also with the early gestational onset of raised maternal serum bile acids.
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Downregulation of peroxiredoxin-3 by hydrophobic bile acid induces mitochondrial dysfunction and cellular senescence in human trophoblasts. Sci Rep 2016; 6:38946. [PMID: 27958341 PMCID: PMC5154184 DOI: 10.1038/srep38946] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 11/16/2016] [Indexed: 12/19/2022] Open
Abstract
Intrahepatic cholestasis of pregnancy (ICP) is a pregnancy-specific disorder characterised by raised bile acids in foetal-maternal circulation, which threatens perinatal health. During the progression of ICP, the effect of oxidative stress is underscored. Peroxiredoxin-3 (PRDX3) is a mitochondrial antioxidant enzyme that is crucial to balance intracellular oxidative stress. However, the role of PRDX3 in placental trophoblast cells under ICP is not fully understood. We demonstrated that the level of PRDX3 was downregulated in ICP placentas as well as bile acids–treated trophoblast cells and villous explant in vitro. Toxic levels of bile acids and PRDX3 knockdown induced oxidative stress and mitochondrial dysfunction in trophoblast cells. Moreover, silencing of PRDX3 in trophoblast cell line HTR8/SVneo induced growth arrest and cellular senescence via activation of p38-mitogen-activated protein kinase (MAPK) and induction of p21WAF1/CIP and p16INK4A. Additionally, enhanced cellular senescence, determined by senescence-associated beta-galactosidase staining, was obviously attenuated by p38-MAPK inhibitor SB203580. Our data determined that exposure to bile acid decreased PRDX3 level in human trophoblasts. PRDX3 protected trophoblast cells against mitochondrial dysfunction and cellular senescence induced by oxidative stress. Our results suggest that decreased PRDX3 by excessive bile acids in trophoblasts plays a critical role in the pathogenesis and progression of ICP.
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New adverse obstetrics outcomes associated with endometriosis: a retrospective cohort study. Arch Gynecol Obstet 2016; 295:141-151. [DOI: 10.1007/s00404-016-4222-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 10/14/2016] [Indexed: 02/06/2023]
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Rodrigo S, Rodríguez L, Otero P, Panadero MI, García A, Barbas C, Roglans N, Ramos S, Goya L, Laguna JC, Álvarez-Millán JJ, Bocos C. Fructose during pregnancy provokes fetal oxidative stress: The key role of the placental heme oxygenase-1. Mol Nutr Food Res 2016; 60:2700-2711. [PMID: 27545118 DOI: 10.1002/mnfr.201600193] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 07/29/2016] [Accepted: 08/01/2016] [Indexed: 12/31/2022]
Abstract
SCOPE One of the features of metabolic syndrome caused by liquid fructose intake is an impairment of redox status. We have investigated whether maternal fructose ingestion modifies the redox status in pregnant rats and their fetuses. METHODS AND RESULTS Fructose (10% wt/vol) in the drinking water of rats throughout gestation, leads to maternal hepatic oxidative stress. However, this change was also observed in glucose-fed rats and, in fact, both carbohydrates produced a decrease in antioxidant enzyme activity. Surprisingly, mothers fed carbohydrates displayed low plasma lipid oxidation. In contrast, fetuses from fructose-fed mothers showed elevated levels of plasma lipoperoxides versus fetuses from control or glucose-fed mothers. Interestingly, a clearly augmented oxidative stress was observed in placenta of fructose-fed mothers, accompanied by a lower expression of the transcription factor Nuclear factor-erythroid 2-related factor-2 (Nrf2) and its target gene, heme oxygenase-1 (HO-1), a potent antioxidant molecule. Moreover, histone deacetylase 3 (HDAC3) that has been proposed to upregulate HO-1 expression by stabilizing Nrf2, exhibited a diminished expression in placenta of fructose-supplemented mothers. CONCLUSIONS Maternal fructose intake provoked an imbalanced redox status in placenta and a clear diminution of HO-1 expression, which could be responsible for the augmented oxidative stress found in their fetuses.
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Affiliation(s)
- Silvia Rodrigo
- Facultad de Farmacia, Universidad San Pablo-CEU, Madrid, Spain
| | | | - Paola Otero
- Facultad de Farmacia, Universidad San Pablo-CEU, Madrid, Spain
| | | | - Antonia García
- Centre of Metabolomics and Bioanalysis (CEMBIO), Facultad de Farmacia, Universidad San Pablo-CEU, Madrid, Spain
| | - Coral Barbas
- Centre of Metabolomics and Bioanalysis (CEMBIO), Facultad de Farmacia, Universidad San Pablo-CEU, Madrid, Spain
| | - Núria Roglans
- Facultad de Farmacia, Universidad de Barcelona, CIBERobn, IBUB, Barcelona, Spain
| | - Sonia Ramos
- Departamento de Metabolismo y Nutrición, Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN/CSIC), Madrid, Spain
| | - Luis Goya
- Departamento de Metabolismo y Nutrición, Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN/CSIC), Madrid, Spain
| | - Juan C Laguna
- Facultad de Farmacia, Universidad de Barcelona, CIBERobn, IBUB, Barcelona, Spain
| | | | - Carlos Bocos
- Facultad de Farmacia, Universidad San Pablo-CEU, Madrid, Spain
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Kong X, Kong Y, Zhang F, Wang T, Yan J. Evaluating the effectiveness and safety of ursodeoxycholic acid in treatment of intrahepatic cholestasis of pregnancy: A meta-analysis (a prisma-compliant study). Medicine (Baltimore) 2016; 95:e4949. [PMID: 27749550 PMCID: PMC5059052 DOI: 10.1097/md.0000000000004949] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Intrahepatic cholestasis of pregnancy (ICP) is a specific pregnancy-related disorder without standard medical therapies. Ursodeoxycholic acid (UDCA) is the most used medicine, but the efficacy and safety of UDCA remain uncertain. Several meta-analyses had been made to assess the effects of UDCA in ICP. However, the samples were not large enough to convince obstetricians to use UDCA. We conducted a meta-analysis to evaluate the effects and safety of UDCA in patients with ICP, which included only randomized controlled trials (RCTs). METHODS Six databases were searched. The search terms were "ursodeoxycholicacid," "therapy," "management," "treatment," "intrahepatic cholestasis of pregnancy," "obstetric cholestasis," "recurrent jaundice of pregnancy," "pruritus gravidarum," "idiopathic jaundice of pregnancy," "intrahepatic jaundice of pregnancy," and "icterus gravidarum."Randomized controlled trials of UDCA versus control groups (included using other medicines) among patients with ICP were included. The primary outcomes were improved pruritus scores and liver function. Secondary outcomes were the maternal and fetal outcomes in patients with ICP.Data were extracted from included RCTs. The Mantel-Haenzel random-effects model or fixed-effects model was used for meta-analysis. RESULTS A total of 12 RCTs involving 662 patients were included in the meta-analysis. In pooled analyses that compared UDCA with all controls, UDCA was associated with resolution of pruritus (risk ratio [RR], 1.68; 95% confidence interval [CI],1.12-2.52; P = 0.01),decrease of serum levels of alanine aminotransferase (ALT) (standardized mean difference (SMD), -1.36; 95% CI, -2.08 to -0.63; P <0.001), reduced serum levels of bile acid (SMD, -0.68; 95% CI, -1.15 to -0.20; P <0.001), fewer premature births (RR, 0.56; 95% CI, 0.43-0.72; P <0.001),reduced fetal distress (RR, 0.68; 95% CI, 0.49-0.94; P = 0.02), high Apgar scores at 5 minutes (RR, 0.44; 95% CI, 0.24-0.82; P = 0.009), less frequent respiratory distress syndrome (RDS) (RR, 0.33; 95% CI, 0.13-0.86; P = 0.02), and fewer neonates in the intensive care unit (NICU) (RR, 0.55; 95% CI, 0.35-0.87; P <0.05), increased gestational age (SMD,0.44; 95% CI, 0.26-0.63; P <0.001), and birth weight (SMD, 0.21; 95% CI, 0.02-0.40; P = 0.03). There were no differences in meconium staining and intrauterine growth retardation (IUGR) between the groups (P >0.05). No trials reported adverse effects on mothers and fetuses except nausea and emesis. CONCLUSION UDCA is effective and safe to improve pruritus and liver function in ICP. UDCA also reduced adverse maternal and fetal outcomes in pregnant women with ICP.
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Affiliation(s)
- Xiang Kong
- Department of Obstetrics and Gynecology, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
- Correspondence: Xiang Kong, No. 98, West Nantong Road, Yangzhou, 225001, Jiangsu Province, China (e-mail: )
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Pařízek A, Hill M, Dušková M, Vítek L, Velíková M, Kancheva R, Šimják P, Koucký M, Kokrdová Z, Adamcová K, Černý A, Hájek Z, Stárka L. A Comprehensive Evaluation of Steroid Metabolism in Women with Intrahepatic Cholestasis of Pregnancy. PLoS One 2016; 11:e0159203. [PMID: 27494119 PMCID: PMC4975406 DOI: 10.1371/journal.pone.0159203] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 06/28/2016] [Indexed: 12/27/2022] Open
Abstract
Intrahepatic cholestasis of pregnancy (ICP) is a common liver disorder, mostly occurring in the third trimester. ICP is defined as an elevation of serum bile acids, typically accompanied by pruritus and elevated activities of liver aminotransferases. ICP is caused by impaired biliary lipid secretion, in which endogenous steroids may play a key role. Although ICP is benign for the pregnant woman, it may be harmful for the fetus. We evaluated the differences between maternal circulating steroids measured by RIA (17-hydroxypregnenolone and its sulfate, 17-hydroxyprogesterone, and cortisol) and GC-MS (additional steroids), hepatic aminotransferases and bilirubin in women with ICP (n = 15, total bile acids (TBA) >8 μM) and corresponding controls (n = 17). An age-adjusted linear model, receiver-operating characteristics (ROC), and multivariate regression (a method of orthogonal projections to latent structure, OPLS) were used for data evaluation. While aminotransferases, conjugates of pregnanediols, 17-hydroxypregnenolone and 5β-androstane-3α,17β-diol were higher in ICP patients, 20α-dihydropregnenolone, 16α-hydroxy-steroids, sulfated 17-oxo-C19-steroids, and 5β-reduced steroids were lower. The OPLS model including steroids measured by GC-MS and RIA showed 93.3% sensitivity and 100% specificity, while the model including steroids measured by GC-MS in a single sample aliquot showed 93.3% sensitivity and 94.1% specificity. A composite index including ratios of sulfated 3α/β-hydroxy-5α/β-androstane-17-ones to conjugated 5α/β-pregnane-3α/β, 20α-diols discriminated with 93.3% specificity and 81.3% sensitivity (ROC analysis). These new data demonstrating altered steroidogenesis in ICP patients offer more detailed pathophysiological insights into the role of steroids in the development of ICP.
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Affiliation(s)
- Antonín Pařízek
- Department of Obstetrics and Gynecology, General University Hospital and 1st Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Martin Hill
- Institute of Endocrinology, Prague, Czech Republic
- * E-mail:
| | | | - Libor Vítek
- Institute of Medical Biochemistry and Laboratory Diagnostics and 4th Department of Internal Medicine, General University Hospital and 1st Faculty of Medicine of Charles University in Prague, Prague, Czech Republic
| | | | | | - Patrik Šimják
- Department of Obstetrics and Gynecology, General University Hospital and 1st Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Michal Koucký
- Department of Obstetrics and Gynecology, General University Hospital and 1st Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Zuzana Kokrdová
- Department of Obstetrics and Gynecology, General University Hospital and 1st Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Karolína Adamcová
- Department of Obstetrics and Gynecology, General University Hospital and 1st Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Andrej Černý
- Department of Obstetrics and Gynecology, General University Hospital and 1st Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Zdeněk Hájek
- Department of Obstetrics and Gynecology, General University Hospital and 1st Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
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Gonzalez-Sanchez E, Perez MJ, Nytofte NS, Briz O, Monte MJ, Lozano E, Serrano MA, Marin JJG. Protective role of biliverdin against bile acid-induced oxidative stress in liver cells. Free Radic Biol Med 2016; 97:466-477. [PMID: 27387768 DOI: 10.1016/j.freeradbiomed.2016.06.016] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 06/15/2016] [Accepted: 06/16/2016] [Indexed: 12/22/2022]
Abstract
The accumulation of bile acids affects mitochondria causing oxidative stress. Antioxidant defense is accepted to include biotransformation of biliverdin (BV) into bilirubin (BR) through BV reductase α (BVRα). The mutation (c.214C>A) in BLVRA results in a non-functional enzyme (mutBVRα). Consequently, homozygous carriers suffering from cholestasis develop green jaundice. Whether BVRα deficiency reduces BV-dependent protection against bile acids is a relevant question because a screening of the mut-BLVRA allele (a) in 311 individuals in Greenland revealed that this SNP was relatively frequent in the Inuit population studied (1% a/a and 4.5% A/a). In three human liver cell lines an inverse correlation between BVRα expression (HepG2>Alexander>HuH-7) and basal reactive oxygen species (ROS) levels was found, however the ability of BV to reduce oxidative stress and cell death induced by deoxycholic acid (DCA) or potassium dichromate (PDC) was similar in these cells. The transduction of BVRα or mutBVRα in human placenta JAr cells with negligible BVRα expression or the silencing of endogenous BVRα expression in liver cells had no effect on DCA-induced oxidative stress and cell death or BV-mediated cytoprotection. DCA stimulated both superoxide anion and hydrogen peroxide production, whereas BV only inhibited the latter. DCA and other dihydroxy-bile acids, but not PDC, induced up-regulation of both BVRα and heme oxygenase-1 (HO-1) in liver cells through a FXR independent and BV insensitive mechanism. In conclusion, BV exerts direct and BVRα-independent antioxidant and cytoprotective effects, whereas bile acid accumulation in cholestasis stimulates the expression of enzymes favoring the heme biotransformation into BV and BR.
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Affiliation(s)
- Ester Gonzalez-Sanchez
- Experimental Hepatology and Drug Targeting (HEVEFARM), Biomedical Research Institute of Salamanca (IBSAL), University of Salamanca, Salamanca, Spain.
| | - Maria J Perez
- Experimental Hepatology and Drug Targeting (HEVEFARM), Biomedical Research Institute of Salamanca (IBSAL), University of Salamanca, Salamanca, Spain; Center for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Carlos III National Health Institute, Madrid, Spain.
| | | | - Oscar Briz
- Experimental Hepatology and Drug Targeting (HEVEFARM), Biomedical Research Institute of Salamanca (IBSAL), University of Salamanca, Salamanca, Spain; Center for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Carlos III National Health Institute, Madrid, Spain.
| | - Maria J Monte
- Experimental Hepatology and Drug Targeting (HEVEFARM), Biomedical Research Institute of Salamanca (IBSAL), University of Salamanca, Salamanca, Spain; Center for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Carlos III National Health Institute, Madrid, Spain.
| | - Elisa Lozano
- Experimental Hepatology and Drug Targeting (HEVEFARM), Biomedical Research Institute of Salamanca (IBSAL), University of Salamanca, Salamanca, Spain; Center for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Carlos III National Health Institute, Madrid, Spain.
| | - Maria A Serrano
- Experimental Hepatology and Drug Targeting (HEVEFARM), Biomedical Research Institute of Salamanca (IBSAL), University of Salamanca, Salamanca, Spain; Center for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Carlos III National Health Institute, Madrid, Spain.
| | - Jose J G Marin
- Experimental Hepatology and Drug Targeting (HEVEFARM), Biomedical Research Institute of Salamanca (IBSAL), University of Salamanca, Salamanca, Spain; Center for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Carlos III National Health Institute, Madrid, Spain.
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Zhang Y, Pan Y, Lin C, Zheng Y, Sun H, Zhang H, Wang J, Yuan M, Duan T, Du Q, Chen J. Bile acids evoke placental inflammation by activating Gpbar1/NF-κB pathway in intrahepatic cholestasis of pregnancy. J Mol Cell Biol 2016; 8:530-541. [PMID: 27402811 DOI: 10.1093/jmcb/mjw025] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 02/24/2016] [Indexed: 12/20/2022] Open
Abstract
Intrahepatic cholestasis of pregnancy (ICP) is a cholestatic disorder with potentially deleterious consequences for fetuses. Although a clear correlation between the elevated levels of maternal serum bile acids and deficient fetal outcome has been established in clinical practice, the underlying mechanisms remain elusive. Herein, we report that bile acids induce NF-κB pathway activation via G protein-coupled bile acid receptor 1 (Gpbar1), with consequent upregulation of inflammatory genes in trophoblasts, leading to aberrant leukocyte infiltration and inflammation in placenta. Ursodeoxycholic acid (UDCA), a drug used clinically to treat ICP, competes with other bile acids for binding with Gpbar1 and thus inhibits bile acid-induced inflammatory response in trophoblasts and improves fetal survival in pregnant rats with obstructive cholestasis. Notably, inhibition of NF-κB by andrographolide is more effective than UDCA in benefiting placentas and fetuses. Thus, anti-inflammation therapy targeting Gpbar1/NF-κB pathway could be effective in suppressing bile acid-induced inflammation and alleviating ICP-associated fetal disorders.
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Affiliation(s)
- YouHua Zhang
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - YouDong Pan
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - ChangDong Lin
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - YaJuan Zheng
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Hao Sun
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - HaiLong Zhang
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - JunLei Wang
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - MengYa Yuan
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Tao Duan
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200040, China
| | - QiaoLing Du
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200040, China
| | - JianFeng Chen
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
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Oxidative Stress in Placenta: Health and Diseases. BIOMED RESEARCH INTERNATIONAL 2015; 2015:293271. [PMID: 26693479 PMCID: PMC4676991 DOI: 10.1155/2015/293271] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 11/12/2015] [Indexed: 12/23/2022]
Abstract
During pregnancy, development of the placenta is interrelated with the oxygen concentration. Embryo development takes place in a low oxygen environment until the beginning of the second trimester when large amounts of oxygen are conveyed to meet the growth requirements. High metabolism and oxidative stress are common in the placenta. Reactive oxidative species sometimes harm placental development, but they are also reported to regulate gene transcription and downstream activities such as trophoblast proliferation, invasion, and angiogenesis. Autophagy and apoptosis are two crucial, interconnected processes in the placenta that are often influenced by oxidative stress. The proper interactions between them play an important role in placental homeostasis. However, an imbalance between the protective and destructive mechanisms of autophagy and apoptosis seems to be linked with pregnancy-related disorders such as miscarriage, preeclampsia, and intrauterine growth restriction. Thus, potential therapies to hold oxidative stress in leash, promote placentation, and avoid unwanted apoptosis are discussed.
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Larson SP, Kovilam O, Agrawal DK. Immunological basis in the pathogenesis of intrahepatic cholestasis of pregnancy. Expert Rev Clin Immunol 2015; 12:39-48. [PMID: 26469633 DOI: 10.1586/1744666x.2016.1101344] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Intrahepatic cholestasis of pregnancy poses a great risk to both maternal and fetal health. Despite extensive research, much of the pathogenesis of this disorder is unknown. The increase in bile acids observed in patients with intrahepatic cholestasis of pregnancy has been noted to cause a change in the immune system from the normally mediated TH2 response to one that is more oriented towards TH1. In this literature review, we have critically reviewed the current literature regarding the changes in the immune system and the potential effects of immunological changes in the management of the patient. The current treatment, ursodeoxycholic acid, is also discussed along with potential combination therapies and future directions for research.
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Affiliation(s)
- Spencer P Larson
- a Center for Clinical & Translational Science , Creighton University School of Medicine , Omaha , NE , USA.,b Department of Obstetrics and Gynecology , Creighton University School of Medicine , Omaha , NE , USA
| | - Oormila Kovilam
- b Department of Obstetrics and Gynecology , Creighton University School of Medicine , Omaha , NE , USA
| | - Devendra K Agrawal
- a Center for Clinical & Translational Science , Creighton University School of Medicine , Omaha , NE , USA
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Oztas E, Ozler S, Ersoy AO, Erkenekli K, Sucak A, Ergin M, Uygur D, Danisman N. Placental ADAMTS-12 Levels in the Pathogenesis of Preeclampsia and Intrahepatic Cholestasis of Pregnancy. Reprod Sci 2015; 23:475-81. [PMID: 26363034 DOI: 10.1177/1933719115604730] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Our aim was to determine whether placental A Disintegrin-like Metalloproteinase with ThromboSpondin motif 12 (ADAMTS-12), arylesterase (ARES) levels, total oxidant status (TOS), and total antioxidant status (TAS) differ in preeclampsia, intrahepatic cholestasis of pregnancy (ICP), and uncomplicated pregnancies or not. A prospective case-control study was carried out including 84 pregnant women (26 with ICP, 28 preeclamptic patients, and 30 healthy controls). Levels of ADAMTS-12, TAS, TOS, and ARES were studied in the supernatants of placental tissue homogenates. Placental ADAMTS-12 levels were distributed as 240.9 pg/mg in ICP, 289.7 pg/mg in preeclampsia, and 310.8 pg/mg in control groups. Levels of ADAMTS-12 (odds ratio = 6.509, 95% confidence interval:1.070-39.592, P = .042) in the placenta of the ICP were significantly lower than those in preeclampsia and control groups (P = .004), but no statistical significant difference was determined between preeclampsia and control groups. Decreased levels of placental ADAMTS-12 were found to be associated with ICP, suggesting a possible role of inflammation in the pathogenesis.
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Affiliation(s)
- Efser Oztas
- Department of Perinatology, Zekai Tahir Burak Women's Health Education and Research Hospital, Ankara, Turkey
| | - Sibel Ozler
- Department of Perinatology, Zekai Tahir Burak Women's Health Education and Research Hospital, Ankara, Turkey
| | - Ali O Ersoy
- Department of Perinatology, Zekai Tahir Burak Women's Health Education and Research Hospital, Ankara, Turkey
| | - Kudret Erkenekli
- Department of Perinatology, Zekai Tahir Burak Women's Health Education and Research Hospital, Ankara, Turkey
| | - Ayhan Sucak
- Department of Perinatology, Zekai Tahir Burak Women's Health Education and Research Hospital, Ankara, Turkey
| | - Merve Ergin
- Department of Clinical Biochemistry, Faculty of Medicine, Yildirim Beyazit University, Ankara, Turkey
| | - Dilek Uygur
- Department of Perinatology, Zekai Tahir Burak Women's Health Education and Research Hospital, Ankara, Turkey
| | - Nuri Danisman
- Department of Perinatology, Zekai Tahir Burak Women's Health Education and Research Hospital, Ankara, Turkey
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Glutathione Supplementation Attenuates Oxidative Stress and Improves Vascular Hyporesponsiveness in Experimental Obstructive Jaundice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:486148. [PMID: 26161237 PMCID: PMC4487904 DOI: 10.1155/2015/486148] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 01/31/2015] [Accepted: 01/31/2015] [Indexed: 12/01/2022]
Abstract
We investigated the protective effects and mechanism of glutathione (GSH) on vascular hyporesponsiveness induced by bile duct ligation (BDL) in a rat model. Seventy-two male Sprague-Dawley rats were randomly divided into four groups: a NS group, a GSH group, a BDL + NS group, and a BDL + GSH group. GSH was administrated into rats in the GSH and BDL + GSH groups by gastric gavage. An equal volume of normal saline was, respectively, given in the NS group and BDL + NS group. Blood was gathered for serological determination and thoracic aorta rings were isolated for measurement of isometric tension. Obstructive jaundice led to a significant increase in the serum total bilirubin, AST, and ALT levels. The proinflammatory cytokines levels (TNF-α and IL-1β), concentration of NO, and oxidative stress markers (MDA and 3-NT) were increased as well. All of those were reduced by the treatment of GSH. Meanwhile, contraction of aorta rings to NA and vasorelaxation to ACh or SNP in the BDL group rats were markedly decreased, while GSH administration reversed this change. Our findings suggested that GSH supplementation attenuated overexpressed ONOO(−) from the reaction of excessive NO with O2∙- and protected against obstructive jaundice-induced vascular hyporesponsiveness in rats.
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Wu WB, Xu YY, Cheng WW, Wang YX, Liu Y, Huang D, Zhang HJ. Agonist of farnesoid X receptor protects against bile acid induced damage and oxidative stress in mouse placenta--a study on maternal cholestasis model. Placenta 2015; 36:545-51. [PMID: 25747729 DOI: 10.1016/j.placenta.2015.02.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 01/21/2015] [Accepted: 02/09/2015] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Intrahepatic cholestasis of pregnancy (ICP) is a pregnancy-specific disorder, which is characterized by raised serum bile acid level and potential adverse fetal outcome. Farnesoid X receptor (FXR), also known as a bile acid receptor, was found to be expressed in placenta with low level. Whether activation of FXR by specific agonists could regulate the pathogenesis of ICP is still unclear. METHODS A model of maternal cholestasis was induced by administration of 17α-ethynylestradiol (E2) in pregnant mice for 6 days. We explored the regulatory effect of WAY-362450 (W450), a highly selective and potent FXR agonist on placenta. RESULTS In this study, we demonstrated that administration of E2 increased bile acid levels in mouse serum, liver and amniotic fluid. Bile acid levels were significantly decreased after W450 treatment. W450 protected against the impairment of placentas induced by E2, including severe intracellular edema and apoptosis of trophoblasts. Moreover, W450 significantly induced the expressions of FXR target bile acid transport gene ATP-binding cassette, sub-family B (MDR/TAP), member 11 (Abcb11;Bsep) in placenta. W450 could also attenuate placental oxidative stress and increase the expressions of antioxidant enzymes Prdx1 and Prdx3. DISCUSSION AND CONCLUSION In conclusion, our data demonstrated that FXR agonist W450 modulated bile acid balance and protected against placental oxidative stress. Thus, our results support that potent FXR agonists might represent promising drugs for the treatment of ICP.
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Affiliation(s)
- W B Wu
- Departments of Pathology and Bio-Bank, the International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Y Y Xu
- Departments of Pathology and Bio-Bank, the International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - W W Cheng
- Department of Obstetrics and Gynecology, the International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Y X Wang
- Departments of Pathology and Bio-Bank, the International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Y Liu
- Departments of Pathology and Bio-Bank, the International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - D Huang
- Department of Obstetrics and Gynecology, the International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - H J Zhang
- Departments of Pathology and Bio-Bank, the International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China.
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Expression of hypoxia-regulated genes and glycometabolic genes in placenta from patients with intrahepatic cholestasis of pregnancy. Placenta 2014; 35:732-6. [DOI: 10.1016/j.placenta.2014.06.372] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 06/19/2014] [Accepted: 06/25/2014] [Indexed: 12/27/2022]
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Martinefski MR, Contin MD, Rodriguez MR, Geréz EM, Galleano ML, Lucangioli SE, Bianciotti LG, Tripodi VP. Coenzyme Q in pregnant women and rats with intrahepatic cholestasis. Liver Int 2014; 34:1040-8. [PMID: 24118985 DOI: 10.1111/liv.12323] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Accepted: 08/29/2013] [Indexed: 02/13/2023]
Abstract
BACKGROUND & AIMS Intrahepatic cholestasis of pregnancy is a high-risk liver disease given the eventual deleterious consequences that may occur in the foetus. It is accepted that the abnormal accumulation of hydrophobic bile acids in maternal serum are responsible for the disease development. Hydrophobic bile acids induce oxidative stress and apoptosis leading to the damage of the hepatic parenchyma and eventually extrahepatic tissues. As coenzyme Q (CoQ) is considered an early marker of oxidative stress in this study, we sought to assess CoQ levels, bile acid profile and oxidative stress status in intrahepatic cholestasis. METHODS CoQ, vitamin E and malondialdehyde were measured in plasma and/or tissues by HPLC-UV method whereas serum bile acids by capillary electrophoresis in rats with ethinyl estradiol-induced cholestasis and women with pregnancy cholestasis. RESULTS CoQ and vitamin E plasma levels were diminished in both rats and women with intrahepatic cholestasis. Furthermore, reduced CoQ was also found in muscle and brain of cholestatic rats but no changes were observed in heart or liver. In addition, a positive correlation between CoQ and ursodeoxycholic/lithocholic acid ratio was found in intrahepatic cholestasis suggesting that increased plasma lithocholic acid may be intimately related to CoQ depletion in blood and tissues. CONCLUSION Significant CoQ and vitamin E depletion occur in both animals and humans with intrahepatic cholestasis likely as the result of increased hydrophobic bile acids known to produce significant oxidative stress. Present findings further suggest that antioxidant supplementation complementary to traditional treatment may improve cholestasis outcome.
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Affiliation(s)
- Manuela R Martinefski
- Analytical Chemistry, School of Pharmacy and Biochemistry, Universidad de Buenos Aires, Buenos Aires, Argentina
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Du Q, Pan Y, Zhang Y, Zhang H, Zheng Y, Lu L, Wang J, Duan T, Chen J. Placental gene-expression profiles of intrahepatic cholestasis of pregnancy reveal involvement of multiple molecular pathways in blood vessel formation and inflammation. BMC Med Genomics 2014; 7:42. [PMID: 25001852 PMCID: PMC4105836 DOI: 10.1186/1755-8794-7-42] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Accepted: 07/03/2014] [Indexed: 02/08/2023] Open
Abstract
Background Intrahepatic cholestasis of pregnancy (ICP) is a pregnancy-associated liver disease with potentially deleterious consequences for the fetus, particularly when maternal serum bile-acid concentration >40 μM. However, the etiology and pathogenesis of ICP remain elusive. To reveal the underlying molecular mechanisms for the association of maternal serum bile-acid level and fetal outcome in ICP patients, DNA microarray was applied to characterize the whole-genome expression profiles of placentas from healthy women and women diagnosed with ICP. Methods Thirty pregnant women recruited in this study were categorized evenly into three groups: healthy group; mild ICP, with serum bile-acid concentration ranging from 10–40 μM; and severe ICP, with bile-acid concentration >40 μM. Gene Ontology analysis in combination with construction of gene-interaction and gene co-expression networks were applied to identify the core regulatory genes associated with ICP pathogenesis, which were further validated by quantitative real-time PCR and histological staining. Results The core regulatory genes were mainly involved in immune response, VEGF signaling pathway and G-protein-coupled receptor signaling, implying essential roles of immune response, vasculogenesis and angiogenesis in ICP pathogenesis. This implication was supported by the observed aggregated immune-cell infiltration and deficient blood vessel formation in ICP placentas. Conclusions Our study provides a system-level insight into the placental gene-expression profiles of women with mild or severe ICP, and reveals multiple molecular pathways in immune response and blood vessel formation that might contribute to ICP pathogenesis.
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Affiliation(s)
| | | | | | | | | | | | | | - Tao Duan
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200040, China.
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Zhang T, Zhao C, Luo L, Xiang J, Cheng J, Wang T, Chen D. High concentraction of taurocholic acid induced apoptosis in HTR-8/SVneo cells via overexpression of ERp29 and activation of p38. Placenta 2014; 35:496-500. [PMID: 24780196 DOI: 10.1016/j.placenta.2014.03.023] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 03/25/2014] [Accepted: 03/28/2014] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Intrahepatic cholestasis of pregnancy (ICP) is a pregnancy-specific disease associated with a significant risk of fetal complications. Our previous study using an iTRAQ-based proteomics approach showed that ERp29 was overexpressed in the placenta tissue of ICP patients, which was an apoptosis-related protein and has not been investigated in the pathogenesis of ICP. The aim of this study was to explore the role of ERp29 in the mechanism of apoptosis in the placenta of ICP. METHODS HTR-8/SVneo cells were cultured and treated with different concentrations of taurocholic acid (TCA) (0, 10, 50 and 100 μM). The apoptotic index and cell cycle were detected by flow cytometry; furthermore, the expression levels of ERp29 and p-p38 were detected by western blot. The ERp29-siRNA was also used to confirm the role of ERp29 in TCA induced-apoptosis. RESULTS ERp29 expression and the apoptotic index were significantly increased in HTR-8/SVneo cells exposed to 100 μM TCA; so were p-p38 and caspase-3 activity, compared with the 50 μM, 10 μM TCA groups and negative control group (P < 0.05, respectively). The induction of apoptosis by TCA and the expression of p-p38 were reduced in HTR-8/SVneo cells after treatment with ERp29-siRNA, compared with controls (P < 0.05, respectively). CONCLUSIONS This study suggested that overexpression of ERp29 may play a key role in TCA-induced apoptosis in HTR-8/SVneo cells via activation of p38, which may participate in the pathogenesis of ICP and may represent a novel target for ICP treatment.
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Affiliation(s)
- T Zhang
- Wuxi Maternity and Child Health Hospital Affiliated to Nanjing Medical University, Wuxi 214002, China.
| | - C Zhao
- State Key Laboratory of Reproductive Medicine, Nanjing Maternity and Child Health Hospital Affiliated to Nanjing Medical University, Nanjing 210004, China
| | - L Luo
- Department of Respiratory Medicine, Jinling Hospital, Nanjing University Medical School, Nanjing 210093, China; Wuxi Second Hospital Affiliated to Nanjing Medical University, Wuxi 214002, China
| | - J Xiang
- Wuxi Maternity and Child Health Hospital Affiliated to Nanjing Medical University, Wuxi 214002, China
| | - J Cheng
- Wuxi Maternity and Child Health Hospital Affiliated to Nanjing Medical University, Wuxi 214002, China
| | - T Wang
- Wuxi Maternity and Child Health Hospital Affiliated to Nanjing Medical University, Wuxi 214002, China
| | - D Chen
- Wuxi Maternity and Child Health Hospital Affiliated to Nanjing Medical University, Wuxi 214002, China.
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Zhang T, Guo Y, Guo X, Zhou T, Chen D, Xiang J, Zhou Z. Comparative proteomics analysis of placenta from pregnant women with intrahepatic cholestasis of pregnancy. PLoS One 2013; 8:e83281. [PMID: 24391750 PMCID: PMC3877025 DOI: 10.1371/journal.pone.0083281] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Accepted: 11/11/2013] [Indexed: 12/27/2022] Open
Abstract
Introduction Intrahepatic cholestasis of pregnancy (ICP) usually occurs in the third trimester and associated with increased risks in fetal complications. Currently, the exact cause of this disease is unknown. In this study we aim to investigate the potential proteins in placenta, which may participate in the molecular mechanisms of ICP-related fetal complications using iTRAQ-based proteomics approach. Methods The iTRAQ analysis combined with liquid chromatography-tandem mass spectrometry (LC-MS/MS) was performed to separate differentially expressed placental proteins from 4 pregnant women with ICP and 4 healthy pregnant women. Bioinformatics analysis was used to find the relative processes that these differentially expressed proteins were involved in. Three apoptosis related proteins ERp29, PRDX6 and MPO that resulted from iTRAQ-based proteomics were further verified in placenta by Western blotting and immunohistochemistry. Placental apoptosis was also detected by TUNEL assay. Results Proteomics results showed there were 38 differentially expressed proteins from pregnant women with ICP and healthy pregnant women, 29 were upregulated and 9 were downregulated in placenta from pregnant women with ICP. Bioinformatics analysis showed most of the identified proteins was functionally related to specific cell processes, including apoptosis, oxidative stress, lipid metabolism. The expression levels of ERp29, PRDX6 and MPO were consistent with the proteomics data. The apoptosis index in placenta from ICP patients was significantly increased. Conclusion This preliminary work provides a better understanding of the proteomic alterations of placenta from pregnant women with ICP and may provide us some new insights into the pathophysiology and potential novel treatment targets for ICP.
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Affiliation(s)
- Ting Zhang
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
- Wuxi Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Wuxi, China
| | - Yueshuai Guo
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
| | - Xuejiang Guo
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
| | - Tao Zhou
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
| | - Daozhen Chen
- Wuxi Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Wuxi, China
- * E-mail: (ZZ); (DC)
| | - Jingying Xiang
- Wuxi Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Wuxi, China
| | - Zuomin Zhou
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
- * E-mail: (ZZ); (DC)
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Role of macrophages in bile acid-induced inflammatory response of fetal lung during maternal cholestasis. J Mol Med (Berl) 2013; 92:359-72. [DOI: 10.1007/s00109-013-1106-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 09/17/2013] [Accepted: 11/14/2013] [Indexed: 01/14/2023]
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Lozano E, Sanchez-Vicente L, Monte MJ, Herraez E, Briz O, Banales JM, Marin JJG, Macias RIR. Cocarcinogenic effects of intrahepatic bile acid accumulation in cholangiocarcinoma development. Mol Cancer Res 2013; 12:91-100. [PMID: 24255171 DOI: 10.1158/1541-7786.mcr-13-0503] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
UNLABELLED Bile acid accumulation in liver with cholangiolar neoplastic lesions may occur before cholestasis is clinically detected. Whether this favors intrahepatic cholangiocarcinoma development has been investigated in this study. The E. coli RecA gene promoter was cloned upstream from Luc2 to detect in vitro direct genotoxic ability by activation of SOS genes. This assay demonstrated that bile acids were not able to induce DNA damage. The genotoxic effect of the DNA-damaging agent cisplatin was neither enhanced nor hindered by the hepatotoxic and hepatoprotective glycochenodeoxycholic and glycoursodeoxycholic acids, respectively. In contrast, thioacetamide metabolites, but not thioacetamide itself, induced DNA damage. Thus, thioacetamide was used to induce liver cancer in rats, which resulted in visible tumors after 30 weeks. The effect of bile acid accumulation on initial carcinogenesis phase (8 weeks) was investigated in bile duct ligated (BDL) animals. Serum bile acid measurement and determination of liver-specific healthy and tumor markers revealed that early thioacetamide treatment induced hypercholanemia together with upregulation of the tumor marker Neu in bile ducts, which were enhanced by BDL. Bile acid accumulation was associated with increased expression of interleukin (IL)-6 and downregulation of farnesoid X receptor (FXR). Bile duct proliferation and apoptosis activation, with inverse pattern (BDL > thioacetamide + BDL >> thioacetamide vs. thioacetamide > thioacetamide + BDL > BDL), were observed. In conclusion, intrahepatic accumulation of bile acids does not induce carcinogenesis directly but facilitates a cocarcinogenic effect due to stimulation of bile duct proliferation, enhanced inflammation, and reduction in FXR-dependent chemoprotection. IMPLICATIONS This study reveals that bile acids foster cocarcinogenic events that impact cholangiocarcinoma.
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Affiliation(s)
- Elisa Lozano
- Department of Physiology and Pharmacology, Campus Miguel de Unamuno E.D. 37007-Salamanca, Spain.
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Rodríguez V, Rivoira M, Marchionatti A, Pérez A, Tolosa de Talamoni N. Ursodeoxycholic and deoxycholic acids: A good and a bad bile acid for intestinal calcium absorption. Arch Biochem Biophys 2013; 540:19-25. [PMID: 24096173 DOI: 10.1016/j.abb.2013.09.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 09/11/2013] [Accepted: 09/27/2013] [Indexed: 12/14/2022]
Abstract
The aim of this study was to investigate the effect of ursodeoxycholic acid (UDCA) on intestinal Ca(2+) absorption and to find out whether the inhibition of this process caused by NaDOC could be prevented by UDCA. Chicks were employed and divided into four groups: (a) controls, (b) treated with 10mM NaDOC, (c) treated with 60 μg UDCA/100g of b.w., and (d) treated with 10mM NaDOC and 60 μg UDCA/100g of b.w. UDCA enhanced intestinal Ca(2+) absorption, which was time and dose-dependent. UDCA avoided the inhibition of intestinal Ca(2+) absorption caused by NaDOC. Both bile acids altered protein and gene expression of molecules involved in the transcellular pathway of intestinal Ca(2+) absorption, but in the opposite way. UDCA aborted the oxidative stress produced by NaDOC in the intestine. UDCA and UDCA plus NaDOC increased vitamin D receptor protein expression. In conclusion, UDCA is a beneficial bile acid for intestinal Ca(2+) absorption. Contrarily, NaDOC inhibits the intestinal cation absorption through triggering oxidative stress. The use of UDCA in patients with cholestasis would be benefited because of the protective effect on the intestinal Ca(2+) absorption, avoiding the inhibition caused by hydrophobic bile acids and neutralizing the oxidative stress.
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Affiliation(s)
- Valeria Rodríguez
- Laboratorio "Dr. Fernando Cañas", Cátedra De Bioquímica Y Biología Molecular, Facultad De Ciencias Médicas, INICSA (CONICET-Universidad Nacional De Córdoba), Pabellón Argentina, 2do. Piso, Ciudad Universitaria, 5000 Córdoba, Argentina
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Keitel V, Spomer L, Marin J, Williamson C, Geenes V, Kubitz R, Häussinger D, Macias R. Effect of maternal cholestasis on TGR5 expression in human and rat placenta at term. Placenta 2013; 34:810-6. [DOI: 10.1016/j.placenta.2013.06.302] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 05/31/2013] [Accepted: 06/18/2013] [Indexed: 01/26/2023]
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Liang S, Su WW, Wang YG, Peng W, Nie YC, Li PB. Effect of quercetin 7-rhamnoside on glycochenodeoxycholic acid-induced L-02 human normal liver cell apoptosis. Int J Mol Med 2013; 32:323-30. [PMID: 23756642 DOI: 10.3892/ijmm.2013.1414] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Accepted: 06/03/2013] [Indexed: 11/06/2022] Open
Abstract
Quercetin 7-rhamnoside (Q7R) is one of the main flavonoid components of Hypericum japonicum. However, whether Q7R is one of the active ingredients responsible for the hepatopreventive effects of Hypericum japonicum has not yet been ascertained. Thus, the aim of the present study was to elucidate whether Q7R attenuates apoptosis induced by glycochenodeoxycholic acid (GCDC) in vitro, and to elucidate the mechanisms involved. L-02 human normal liver cells were pre-incubated with 0, 50, 100 and 200 µM Q7R for 30 min and then exposed to 100 µM GCDC for the indicated periods of time. Methylthiazolyldiphenyl-tetrazolium bromide (MTT) was performed to examine cell viability. Apoptosis was evaluated by Hoechst 33258 staining and Annexin V-FITC/PI double staining. Intracellular reactive oxygen species (ROS) were detected by flow cytometry using the oxidation-sensitive fluorescent probe, DCFH-DA. The assay for glutathione (GSH) was performed using a GSH detection kit. Intracellular Ca2+ concentration was evaluated using a confocal laser scanning microscope with Fluo-3 as the Ca2+ probe and mitochondrial membrane potential (Δψm) was measured by rhodamine 123 (Rh123) fluorescence. Q7R attenuated the GCDC-induced reduction in cell viability and the high apoptotic rate. Moreover, Q7R protected the L-02 cells from ROS overproduction, GSH depletion, intracellular Ca2+ accumulation and Δψm decrease induced by GCDC. These results suggest that Q7R attenuates L-02 cell injury induced by GCDC, possibly by inhibiting the overproduction of ROS, GSH depletion, intracellular Ca2+ accumulation and Δψm decrease, thereby minimizing L-02 cell apoptosis.
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Affiliation(s)
- Shuang Liang
- Key Laboratory of Gene Engineering of the Ministry of Education, Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510275, P.R. China
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