1
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Gong C, Chen S, Tang Y, Chen H, Xie J, Lv Y, Shen Z, Zhu Y, Wang S, Ge RS, Zhao J. Effects of organochlorine pesticides on human and rat 17β-hydroxysteroid dehydrogenase 1 activity: Structure-activity relationship and in silico docking analysis. J Steroid Biochem Mol Biol 2024; 240:106510. [PMID: 38508472 DOI: 10.1016/j.jsbmb.2024.106510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/12/2024] [Accepted: 03/18/2024] [Indexed: 03/22/2024]
Abstract
The objective of this study was to examine the effect of 11 organochlorine pesticides on human and rat 17β-Hydroxysteroid dehydrogenase 1 (17β-HSD1) in human placental and rat ovarian microsome and on estradiol production in BeWo cells. The results showed that the IC50 values for endosulfan, fenhexamid, chlordecone, and rhothane on human 17β-HSD1 were 21.37, 73.25, 92.80, and 117.69 μM. Kinetic analysis revealed that endosulfan acts as a competitive inhibitor, fenhexamid as a mixed/competitive inhibitor, chlordecone and rhothane as a mixed/uncompetitive inhibitor. In BeWo cells, all insecticides except endosulfan significantly decreased estradiol production at 100 μM. For rats, the IC50 values for dimethomorph, fenhexamid, and chlordecone were 11.98, 36.92, and 109.14 μM. Dimethomorph acts as a mixed inhibitor, while fenhexamid acts as a mixed/competitive inhibitor. Docking analysis revealed that endosulfan and fenhexamid bind to the steroid-binding site of human 17β-HSD1. On the other hand, chlordecone and rhothane binds to a different site other than the steroid and NADPH-binding site. Dimethomorph binds to the steroid/NADPH binding site, and fenhexamid binds to the steroid binding site of rat 17β-HSD1. Bivariate correlation analysis showed a positive correlation between IC50 values and LogP for human 17β-HSD1, while a slight negative correlation was observed between IC50 values and the number of HBA. ADMET analysis provided insights into the toxicokinetics and toxicity of organochlorine pesticides. In conclusion, this study identified the inhibitory effects of 3-4 organochlorine pesticides and binding mechanisms on human and rat 17β-HSD1, as well as their impact on hormone production.
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Affiliation(s)
- Chaochao Gong
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou, Zhejiang 325027, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Sailing Chen
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yunbing Tang
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Huiqian Chen
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Jianghuan Xie
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yanning Lv
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Zhefan Shen
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yang Zhu
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou, Zhejiang 325027, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Shaowei Wang
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Ren-Shan Ge
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Department of Anesthesiology and Perioperative Medicine, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou, Zhejiang 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou, Zhejiang 325027, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Key Laboratory of Male Health and Environment of Wenzhou, Zhejiang Province 325000, China.
| | - Junzhao Zhao
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
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Liu X, Wang G, Huang H, Lv X, Si Y, Bai L, Wang G, Li Q, Yang W. Exploring maternal-fetal interface with in vitro placental and trophoblastic models. Front Cell Dev Biol 2023; 11:1279227. [PMID: 38033854 PMCID: PMC10682727 DOI: 10.3389/fcell.2023.1279227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 10/30/2023] [Indexed: 12/02/2023] Open
Abstract
The placenta, being a temporary organ, plays a crucial role in facilitating the exchange of nutrients and gases between the mother and the fetus during pregnancy. Any abnormalities in the development of this vital organ not only lead to various pregnancy-related disorders that can result in fetal injury or death, but also have long-term effects on maternal health. In vitro models have been employed to study the physiological features and molecular regulatory mechanisms of placental development, aiming to gain a detailed understanding of the pathogenesis of pregnancy-related diseases. Among these models, trophoblast stem cell culture and organoids show great promise. In this review, we provide a comprehensive overview of the current mature trophoblast stem cell models and emerging organoid models, while also discussing other models in a systematic manner. We believe that this knowledge will be valuable in guiding further exploration of the complex maternal-fetal interface.
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Affiliation(s)
- Xinlu Liu
- School of Biosciences and Biotechnology, Weifang Medical University, Weifang, Shandong, China
| | - Gang Wang
- Department of Emergency, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
| | - Haiqin Huang
- School of Biosciences and Biotechnology, Weifang Medical University, Weifang, Shandong, China
| | - Xin Lv
- School of Biosciences and Biotechnology, Weifang Medical University, Weifang, Shandong, China
| | - Yanru Si
- School of Biosciences and Biotechnology, Weifang Medical University, Weifang, Shandong, China
| | - Lixia Bai
- School of Biosciences and Biotechnology, Weifang Medical University, Weifang, Shandong, China
| | - Guohui Wang
- School of Biosciences and Biotechnology, Weifang Medical University, Weifang, Shandong, China
| | - Qinghua Li
- School of Public Health, Weifang Medical University, Weifang, Shandong, China
| | - Weiwei Yang
- School of Biosciences and Biotechnology, Weifang Medical University, Weifang, Shandong, China
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3
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Zhang R, Walker L, Wen X, Doherty C, Gorczyca L, Buckley B, Barrett ES, Aleksunes LM. Placental BCRP transporter reduces cadmium accumulation and toxicity in immortalized human trophoblasts. Reprod Toxicol 2023; 121:108466. [PMID: 37660740 PMCID: PMC10591833 DOI: 10.1016/j.reprotox.2023.108466] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/20/2023] [Accepted: 08/28/2023] [Indexed: 09/05/2023]
Abstract
Cadmium (Cd) is a ubiquitous environmental metal detectable in most pregnant women. Animal and human studies demonstrate that in utero exposure to Cd reduces birth weight and impairs perinatal growth due to placental toxicity. BCRP is a prominent transporter that can efflux xenobiotics from the placenta. This study sought to investigate Cd transport and toxicity in cultured human BeWo trophoblasts with reduced expression and function of the placental barrier transporter BCRP. Knockdown (KD) of BCRP protein expression and function in BeWo trophoblasts increased the intracellular accumulation of Cd by 100% following treatment with 1 μM CdCl2. No change in the expression of Cd uptake transporters was observed between control and BCRP-KD cells. Reduced BCRP expression impaired viability of BeWo cells exposed to CdCl2 for 48 hr (BCRP-KD IC50: 11 μM, control cells IC50: 18 μM). Moreover, BCRP-KD cells were more sensitive to CdCl2-induced cytotoxicity compared to control BeWo cells. CdCl2 treatment strongly induced the expression of the metal-binding protein metallothionein (MT) in both control and BCRP-KD cells, with significantly greater MT upregulation in Cd-treated BCRP-KD cells. These data suggest that the BCRP transporter reduces Cd accumulation in syncytiotrophoblasts, which may be one mechanism to reduce subsequent toxicity to the placenta and developing fetus.
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Affiliation(s)
- Ranran Zhang
- Department of Biostatistics and Epidemiology, Rutgers University, Piscataway, NJ 08854, USA
| | - Lauren Walker
- Department of Pharmacology and Toxicology, Rutgers University, Piscataway, NJ 08854, USA
| | - Xia Wen
- Department of Pharmacology and Toxicology, Rutgers University, Piscataway, NJ 08854, USA; Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA
| | - Cathleen Doherty
- Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA
| | - Ludwik Gorczyca
- Joint Graduate Program in Toxicology, Rutgers University, Piscataway, NJ 08854, USA
| | - Brian Buckley
- Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA
| | - Emily S Barrett
- Department of Biostatistics and Epidemiology, Rutgers University, Piscataway, NJ 08854, USA; Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA
| | - Lauren M Aleksunes
- Department of Pharmacology and Toxicology, Rutgers University, Piscataway, NJ 08854, USA; Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA.
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Lermant A, Rabussier G, Lanz HL, Davidson L, Porter IM, Murdoch CE. Development of a human iPSC-derived placental barrier-on-chip model. iScience 2023; 26:107240. [PMID: 37534160 PMCID: PMC10392097 DOI: 10.1016/j.isci.2023.107240] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 04/28/2023] [Accepted: 06/26/2023] [Indexed: 08/04/2023] Open
Abstract
Although recently developed placenta-on-chip systems opened promising perspectives for placental barrier modeling, they still lack physiologically relevant trophoblasts and are poorly amenable to high-throughput studies. We aimed to implement human-induced pluripotent stem cells (hiPSC)-derived trophoblasts into a multi-well microfluidic device to develop a physiologically relevant and scalable placental barrier model. When cultured in a perfused micro-channel against a collagen-based matrix, hiPSC-derived trophoblasts self-arranged into a 3D structure showing invasive behavior, fusogenic and endocrine activities, structural integrity, and expressing placental transporters. RNA-seq analysis revealed that the microfluidic 3D environment boosted expression of genes related to early placental structural development, mainly involved in mechanosensing and cell surface receptor signaling. These results demonstrated the feasibility of generating a differentiated primitive syncytium from hiPSC in a microfluidic platform. Besides expanding hiPSC-derived trophoblast scope of applications, this study constitutes an important resource to improve placental barrier models and boost research and therapeutics evaluation in pregnancy.
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Affiliation(s)
- Agathe Lermant
- Systems Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, UK
| | | | | | - Lindsay Davidson
- Human Pluripotent Stem Cell Facility, School of Life Sciences, University of Dundee, Dundee DD1 5EH, UK
| | - Iain M. Porter
- Dundee Imaging Facility, School of Life Sciences, University of Dundee, DD1 5EH, UK
| | - Colin E. Murdoch
- Systems Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, UK
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5
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Rabussier G, Bünter I, Bouwhuis J, Soragni C, van Zijp T, Ng CP, Domansky K, de Windt LJ, Vulto P, Murdoch CE, Bircsak KM, Lanz HL. Healthy and diseased placental barrier on-a-chip models suitable for standardized studies. Acta Biomater 2023; 164:363-376. [PMID: 37116636 DOI: 10.1016/j.actbio.2023.04.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 04/05/2023] [Accepted: 04/21/2023] [Indexed: 04/30/2023]
Abstract
Pathologies associated with uteroplacental hypoxia, such as preeclampsia are among the leading causes of maternal and perinatal morbidity in the world. Its fundamental mechanisms are yet poorly understood due to a lack of good experimental models. Here we report an in vitro model of the placental barrier, based on co-culture of trophoblasts and endothelial cells against a collagen extracellular matrix in a microfluidic platform. The model yields a functional syncytium with barrier properties, polarization, secretion of relevant extracellular membrane components, thinning of the materno-fetal space, hormone secretion, and transporter function. The model is exposed to low oxygen conditions and perfusion flow is modulated to induce a pathological environment. This results in reduced barrier function, hormone secretion, and microvilli as well as an increased nuclei count, characteristics of preeclamptic placentas. The model is implemented in a titer plate-based microfluidic platform fully amenable to high-throughput screening. We thus believe this model could aid mechanistic understanding of preeclampsia and other placental pathologies associated with hypoxia/ischemia, as well as support future development of effective therapies through target and compound screening campaigns. STATEMENT OF SIGNIFICANCE: : The human placenta is a unique organ sustaining fetus growth but is also the source of severe pathologies, such as Preeclampsia. Though leading cause of perinatal mortality in the world, preeclampsia remains untreatable due to a lack of relevant in vitro placenta models. To better understand the pathology, we have developed 3D placental barrier models in a microfluidic device. The platform allows parallel culture of 40 perfused physiological miniaturized placental barriers, comprising a differentiated syncytium and endothelium that have been validated for transporter functions. Exposure to a hypoxic and ischemic environment enabled the mimicking of preeclamptic characteristics in high-throughput, which we believe could lead to a better understanding of the pathology as well as support future effective therapies development.
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Affiliation(s)
- Gwenaëlle Rabussier
- MIMETAS BV, Oegstgeest, 2342 DH, The Netherlands; Department of Cardiology, Maastricht University, Maastricht, 6226 ER, The Netherlands
| | - Ivan Bünter
- MIMETAS BV, Oegstgeest, 2342 DH, The Netherlands
| | | | - Camilla Soragni
- MIMETAS BV, Oegstgeest, 2342 DH, The Netherlands; Department of Cardiology, Maastricht University, Maastricht, 6226 ER, The Netherlands
| | | | - Chee Ping Ng
- MIMETAS BV, Oegstgeest, 2342 DH, The Netherlands
| | | | - Leon J de Windt
- Department of Cardiology, Maastricht University, Maastricht, 6226 ER, The Netherlands
| | - Paul Vulto
- MIMETAS BV, Oegstgeest, 2342 DH, The Netherlands
| | - Colin E Murdoch
- Systems Medicine, School of Medicine, University of Dundee, Dundee, DD1 9SY, Scotland, UK
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6
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Danner L, Malard F, Valdes R, Olivier-Van Stichelen S. Non-Nutritive Sweeteners Acesulfame Potassium and Sucralose Are Competitive Inhibitors of the Human P-glycoprotein/Multidrug Resistance Protein 1 (PGP/MDR1). Nutrients 2023; 15:1118. [PMID: 36904118 PMCID: PMC10005754 DOI: 10.3390/nu15051118] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 02/25/2023] Open
Abstract
Non-nutritive sweeteners (NNS) are popular sugar replacements used in foods, beverages, and medications. Although NNS are considered safe by regulatory organizations, their effects on physiological processes such as detoxification are incompletely understood. Previous studies revealed that the NNS sucralose (Sucr) altered P-glycoprotein (PGP) expression in rat colon. We also demonstrated that early-life exposure to NNS Sucr and acesulfame potassium (AceK) compromises mouse liver detoxification. Building upon these initial discoveries, we investigated the impact of AceK and Sucr on the PGP transporter in human cells to assess whether NNS influence its key role in cellular detoxification and drug metabolism. We showed that AceK and Sucr acted as PGP inhibitors, competing for the natural substrate-binding pocket of PGP. Most importantly, this was observed after exposure to concentrations of NNS within expected levels from common foods and beverage consumption. This may suggest risks for NNS consumers, either when taking medications that require PGP as the primary detoxification transporter or during exposure to toxic compounds.
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Affiliation(s)
- Laura Danner
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Florian Malard
- INSERM U1212, CNRS UMR5320, ARNA Laboratory, University of Bordeaux, 33000 Bordeaux, France
| | - Raquel Valdes
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Stephanie Olivier-Van Stichelen
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Department of Obstetrics & Gynecology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
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7
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Krausová M, Braun D, Buerki-Thurnherr T, Gundacker C, Schernhammer E, Wisgrill L, Warth B. Understanding the Chemical Exposome During Fetal Development and Early Childhood: A Review. Annu Rev Pharmacol Toxicol 2023; 63:517-540. [PMID: 36202091 DOI: 10.1146/annurev-pharmtox-051922-113350] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Early human life is considered a critical window of susceptibility to external exposures. Infants are exposed to a multitude of environmental factors, collectively referred to as the exposome. The chemical exposome can be summarized as the sum of all xenobiotics that humans are exposed to throughout a lifetime. We review different exposure classes and routes that impact fetal and infant metabolism and the potential toxicological role of mixture effects. We also discuss the progress in human biomonitoring and present possiblemodels for studying maternal-fetal transfer. Data gaps on prenatal and infant exposure to xenobiotic mixtures are identified and include natural biotoxins, in addition to commonly reported synthetic toxicants, to obtain a more holistic assessment of the chemical exposome. We highlight the lack of large-scale studies covering a broad range of xenobiotics. Several recommendations to advance our understanding of the early-life chemical exposome and the subsequent impact on health outcomes are proposed.
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Affiliation(s)
- Magdaléna Krausová
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Vienna, Austria; , ,
| | - Dominik Braun
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Vienna, Austria; , ,
| | - Tina Buerki-Thurnherr
- Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Particles Biology Interactions, St. Gallen, Switzerland;
| | - Claudia Gundacker
- Center for Pathobiochemistry and Genetics, Institute of Medical Genetics, Medical University of Vienna, Vienna, Austria; .,Exposome Austria, Research Infrastructure and National EIRENE Hub, Austria
| | - Eva Schernhammer
- Exposome Austria, Research Infrastructure and National EIRENE Hub, Austria.,Center for Public Health, Department of Epidemiology, Medical University of Vienna, Vienna, Austria; .,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, USA
| | - Lukas Wisgrill
- Exposome Austria, Research Infrastructure and National EIRENE Hub, Austria.,Division of Neonatology, Pediatric Intensive Care and Neuropediatrics, Department of Pediatrics and Adolescent Medicine, Comprehensive Center for Pediatrics, Medical University of Vienna, Vienna, Austria;
| | - Benedikt Warth
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Vienna, Austria; , , .,Exposome Austria, Research Infrastructure and National EIRENE Hub, Austria
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8
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Calis P, Vojtech L, Hladik F, Gravett MG. A review of ex vivo placental perfusion models: an underutilized but promising method to study maternal-fetal interactions. J Matern Fetal Neonatal Med 2022; 35:8823-8835. [PMID: 34818981 PMCID: PMC9126998 DOI: 10.1080/14767058.2021.2005565] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 09/10/2021] [Accepted: 11/09/2021] [Indexed: 02/08/2023]
Abstract
Studying the placenta can provide information about the mechanistic pathways of pregnancy disease. However, analyzing placental tissues and manipulating placental function in real-time during pregnancy is not feasible. The ex vivo placental perfusion model allows observing important aspects of the physiology and pathology of the placenta, while maintaining its viability and functional integrity, and without causing harm to mother or fetus. In this review, we describe and compare setups for this technically complex model and summarize outcomes from various published studies. We hope that our review will encourage wider use of ex vivo placental perfusion, which in turn would generate more knowledge to improve pregnancy outcomes.
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Affiliation(s)
- Pinar Calis
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA, USA
| | - Lucia Vojtech
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA, USA
| | - Florian Hladik
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA, USA
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
- Department of Medicine, University of Washington, Seattle, WA, USA
| | - Michael G. Gravett
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA, USA
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9
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Stojanovska V, Arnold S, Bauer M, Voss H, Fest S, Zenclussen AC. Characterization of Three-Dimensional Trophoblast Spheroids: An Alternative Model to Study the Physiological Properties of the Placental Unit. Cells 2022; 11:cells11182884. [PMID: 36139458 PMCID: PMC9497053 DOI: 10.3390/cells11182884] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
It was postulated that 3D cell culture models more accurately reflect the complex tissue physiology and morphology in comparison to 2D cell monolayers. Currently, there is a shortage of well-characterized and easily maintainable high-throughput experimental models of the human placenta. Here, we characterized three different 3D cultures (e.g., spheroids) derived from trophoblast cell lines and studied their functionality in comparison to primary fetal trophoblasts and placental tissue. The spheroid growth rates of JEG3, BeWo and HTR8/SVneo cell lines were similar among each other and were significantly larger in comparison to primary trophoblast spheroids. All spheroids exhibited migratory properties and shortest distances were registered for JEG3 spheroids. Even though all spheroids displayed invasive capabilities, only the invasive features of HTR8/SVneo spheroids resulted in specific branching. This was in agreement with the invasive properties of the spheroids obtained from primary trophoblasts. Human chorionic gonadotropin production was highest in JEG3 spheroids and only increased when stimulated with cAMP and forskolin in BeWo, but not HTR8/SVneo spheroids. The gene expression analysis confirmed that 3D trophoblast cell cultures and especially HTR8/SVneo spheroids showed considerable similarities with the gene expression profile of primary placental tissue. This study offers a broad characterization of 3D trophoblast spheroids that, in turn, can help in selecting the best model depending on the scientific question that needs to be answered.
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Affiliation(s)
- Violeta Stojanovska
- Department of Environmental Immunology, Helmholtz Center for Environmental Research, 04318 Leipzig, Germany
- Correspondence:
| | - Susanne Arnold
- Department of Environmental Immunology, Helmholtz Center for Environmental Research, 04318 Leipzig, Germany
| | - Mario Bauer
- Department of Environmental Immunology, Helmholtz Center for Environmental Research, 04318 Leipzig, Germany
| | - Hermann Voss
- Department of Obstetrics and Gynecology, Städtisches Klinikum Dessau, Academic Hospital of University Brandenburg, 06847 Dessau-Rosslau, Germany
| | - Stefan Fest
- Department of Environmental Immunology, Helmholtz Center for Environmental Research, 04318 Leipzig, Germany
- Department of Pediatrics, Städtisches Klinikum Dessau, Academic Hospital of University Brandenburg, 06847 Dessau-Rosslau, Germany
| | - Ana Claudia Zenclussen
- Department of Environmental Immunology, Helmholtz Center for Environmental Research, 04318 Leipzig, Germany
- Saxonian Incubator for Translational Research, University of Leipzig, 04103 Leipzig, Germany
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10
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Balhara A, Kumar AR, Unadkat JD. Predicting Human Fetal Drug Exposure Through Maternal-Fetal PBPK Modeling and In Vitro or Ex Vivo Studies. J Clin Pharmacol 2022; 62 Suppl 1:S94-S114. [PMID: 36106781 PMCID: PMC9494623 DOI: 10.1002/jcph.2117] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 06/20/2022] [Indexed: 11/06/2022]
Abstract
Medication (drug) use in human pregnancy is prevalent. Determining fetal safety and efficacy of drugs is logistically challenging. However, predicting (not measuring) fetal drug exposure (systemic and tissue) throughout pregnancy is possible through maternal-fetal physiologically based pharmacokinetic (PBPK) modeling and simulation. Such prediction can inform fetal drug safety and efficacy. Fetal drug exposure can be quantified in 2 complementary ways. First, the ratio of the steady-state unbound plasma concentration in the fetal plasma (or area under the plasma concentration-time curve) to the corresponding maternal plasma concentration (ie, Kp,uu ). Second, the maximum unbound peak (Cu,max,ss,f ) and trough (Cu,min,ss,f ) fetal steady-state plasma concentrations. We (and others) have developed a maternal-fetal PBPK model that can successfully predict maternal drug exposure. To predict fetal drug exposure, the model needs to be populated with drug specific parameters, of which transplacental clearances (active and/or passive) and placental/fetal metabolism of the drug are critical. Herein, we describe in vitro studies in cells/tissue fractions or the perfused human placenta that can be used to determine these drug-specific parameters. In addition, we provide examples whereby this approach has successfully predicted systemic fetal exposure to drugs that passively or actively cross the placenta. Apart from maternal-fetal PBPK models, animal studies also have the potential to estimate fetal drug exposure by allometric scaling. Whether such scaling will be successful is yet to be determined. Here, we review the above approaches to predict fetal drug exposure, outline gaps in our knowledge to make such predictions and map out future research directions that could fill these gaps.
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Affiliation(s)
- Ankit Balhara
- Department of Pharmaceutics, University of Washington, Seattle, Washington, USA
| | - Aditya R Kumar
- Department of Pharmaceutics, University of Washington, Seattle, Washington, USA
| | - Jashvant D Unadkat
- Department of Pharmaceutics, University of Washington, Seattle, Washington, USA
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11
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Zheng L, Yang H, Dallmann A. Antidepressants and Antipsychotics in Human Pregnancy: Transfer Across the Placenta and Opportunities for Modeling Studies. J Clin Pharmacol 2022; 62 Suppl 1:S115-S128. [PMID: 36106784 DOI: 10.1002/jcph.2108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 05/31/2022] [Indexed: 11/10/2022]
Abstract
There is limited information about the transfer of antidepressants and antipsychotics across the human placenta. The objective of the current review was to systematically screen the scientific literature using relevant keywords to collect quantitative data on placental transfer of these drugs in humans and to give an overview of current modeling approaches used in this context. The collected data encompassed clinically measured fetal:maternal (F:M) concentration ratios (ie, the ratio between drug concentrations measured in the umbilical cord and drug concentrations measured in the mother) and transfer data obtained from ex vivo cotyledon perfusion experiments. These data were found for 18 antidepressants and some of their pharmacologically active metabolites, and for 10 antipsychotics and the metabolites thereof. Based on the collected data, similar maternal and fetal exposure could be observed for only a few compounds (eg, norfluoxetine and desvenlafaxine), whereas for most drugs (eg, paroxetine, sertraline, and quetiapine), fetal exposure appeared to be on average lower than maternal exposure. Venlafaxine appeared to be an exception in that the data indicated equivalent or higher concentrations in the umbilical cord than in the mother. Physiologically based pharmacokinetic (PBPK) models were sporadically used to investigate maternal pharmacokinetics of antidepressants or antipsychotics (eg, for sertraline, aripiprazole, and olanzapine), although without explicitly addressing fetal drug exposure. It is recommended that PBPK modeling is applied more frequently to these drugs. Although no substitute for clinical studies, these tools can help to better understand pregnancy-induced pharmacokinetic changes and ultimately contribute to a more evidence-based pharmacotherapy of depression and psychosis in pregnant subjects.
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Affiliation(s)
- Liang Zheng
- Department of Clinical Pharmacology, The Second Hospital of Anhui Medical University, Hefei, China
| | - Hongyi Yang
- Department of Clinical Pharmacy and Pharmacy Administration, West China School of Pharmacy, Sichuan University, Chengdu, China.,Chengdu Gencore Pharmaceutical Technology Co., Ltd, Chengdu, China
| | - André Dallmann
- Pharmacometrics/Modeling and Simulation, Research and Development, Pharmaceuticals, Bayer AG, Leverkusen, Germany
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12
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Drug transporters are implicated in the diffusion of tacrolimus into the T lymphocyte in kidney and liver transplant recipients: Genetic, mRNA, protein expression, and functionality. Drug Metab Pharmacokinet 2022; 47:100473. [DOI: 10.1016/j.dmpk.2022.100473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 08/03/2022] [Accepted: 08/11/2022] [Indexed: 11/21/2022]
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13
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Karahoda R, Zaugg J, Fuenzalida B, Kallol S, Moser-Haessig R, Staud F, Albrecht C. Trophoblast Differentiation Affects Crucial Nutritive Functions of Placental Membrane Transporters. Front Cell Dev Biol 2022; 10:820286. [PMID: 35273963 PMCID: PMC8901483 DOI: 10.3389/fcell.2022.820286] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 01/25/2022] [Indexed: 12/17/2022] Open
Abstract
Cytotrophoblasts are progenitor cells that proliferate and fuse to form the multinucleated syncytiotrophoblast layer, implicated in placental endocrine and transport functions. While membrane transporters play a critical role in the distribution of nutrients, hormones, and xenobiotics at the maternal-fetal interface, their selectivity to the syncytiotrophoblast layer is poorly characterized. We aimed to evaluate the regulation of placental transporters in response to trophoblast differentiation in vitro. Experiments were carried out in isolated primary human trophoblast cells before and after syncytialization. Gene expression of six molecular markers and thirty membrane transporters was investigated by qPCR analysis. Subsequently, functional expression was evaluated for proteins involved in the transplacental transfer of essential nutrients i.e., cholesterol (ABCA1, ABCG1), glucose (SLC2A1), leucine (SLC3A2, SLC7A5), and iron (transferrin receptor, TfR1). We identified that human chorionic gonadotropin, placental lactogen, endoglin, and cadherin-11 serve as optimal gene markers for the syncytialization process. We showed that trophoblast differentiation was associated with differential gene expression (mostly up-regulation) of several nutrient and drug transporters. Further, we revealed enhanced protein expression and activity of ABCG1, SLC3A2, SLC7A5, and TfR1 in syncytialized cells, with ABCA1 and GLUT1 displaying no change. Taken together, these results indicate that the syncytiotrophoblast has a dominant role in transporting essential nutrients cholesterol, leucine, and iron. Nonetheless, we present evidence that the cytotrophoblast cells may also be linked to transport functions that could be critical for the cell fusion processes. Our findings collectively yield new insights into the cellular functions associated with or altered by the trophoblast fusion. Importantly, defective syncytialization could lead to nutrient transfer imbalance, ultimately compromising fetal development and programming.
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Affiliation(s)
- Rona Karahoda
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Jonas Zaugg
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland.,Swiss National Centre of Competence in Research, NCCR TransCure, University of Bern, Bern, Switzerland
| | - Barbara Fuenzalida
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland
| | - Sampada Kallol
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland.,Swiss National Centre of Competence in Research, NCCR TransCure, University of Bern, Bern, Switzerland
| | | | - Frantisek Staud
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Christiane Albrecht
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland.,Swiss National Centre of Competence in Research, NCCR TransCure, University of Bern, Bern, Switzerland
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14
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Kammala A, Benson M, Ganguly E, Richardson L, Menon R. Functional role and regulation of permeability-glycoprotein (P-gp) in the fetal membrane during drug transportation. Am J Reprod Immunol 2022; 87:e13515. [PMID: 34873775 PMCID: PMC8776608 DOI: 10.1111/aji.13515] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/09/2021] [Accepted: 11/26/2021] [Indexed: 02/03/2023] Open
Abstract
OBJECTIVE Na+ /H+ exchange regulatory factor-1 (NHERF-1) is a class I PDZ (PSD95/Discs-large/ZO-1) binding protein involved in cell-surface expression and stabilization of transporter proteins, including permeability-glycoprotein (P-gp) in various cell types. P-gp, expressed in placental trophoblasts, is an efflux transporter protein that influences the pharmacokinetics of various drugs used during pregnancy. Previously we have reported that NHERF-1 regulates fetal membrane inflammation. However, the role of NHERF-1 in regulating P-gp in the fetal membrane during drug transportation remains unclear. This study determined the interplay between NHERF-1 and P-gp in human fetal membrane cells. METHODS Fetal membranes from normal, term cesareans were screened for P-gp by immunohistochemistry (IHC). Chorionic trophoblast (CTC), with the highest expression of P-gp among fetal membrane cells, was further used to test interactive properties between NHERF-1 and P-gp. BeWo (placental trophoblast cell line) cells were used as a control. Immunoprecipitation (IP) of CTC lysates using the P-gp antibody followed by western blot determined co-precipitation of NHERF-1. Silencing NHERF-1 using small interfering RNA further tested the relevance of NHERF-1 in P-gp expression and function in CTC and BeWo cells. NHERF-1 regulation of P-gp's efflux function (drug resistance) was further tested using the ENZOTM efflux dye kit. RESULTS Immunohistochemistry localized, and western blot confirmed P-gp in human fetal membranes, primarily in the CTC with limited expression in the amnion epithelial layer. P-gp expression in the membranes was similar to that seen in the placenta. IP data showed P-gp co-precipitating with NHERF1. Silencing of NHERF-1 resulted in significant drug resistance suggesting P-gp function mediated through NHERF1 in CTCs. CONCLUSION Proinflammatory mediator NHERF-1 regulates P-gp and control drug transportation across the fetal membranes. Our data suggest a novel functional role for fetal membranes during pregnancy. Besides the placenta, fetal membranes may also regulate efflux of materials at the feto-maternal interface and control drug transport during pregnancy.
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Affiliation(s)
| | | | | | | | - Ramkumar Menon
- Corresponding author: Ramkumar Menon, Professor, Department of Obstetrics & Gynecology, Director of the Division of Basic Science and Translational Research, The University of Texas Medical Branch at Galveston, 301 University Blvd., Galveston, Texas 77555-1062, USA
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15
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Kammala A, Benson M, Ganguly E, Radnaa E, Kechichian T, Richardson L, Menon R. Fetal Membranes Contribute to Drug Transport across the Feto-Maternal Interface Utilizing the Breast Cancer Resistance Protein (BCRP). Life (Basel) 2022; 12:life12020166. [PMID: 35207454 PMCID: PMC8879081 DOI: 10.3390/life12020166] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 01/12/2022] [Accepted: 01/20/2022] [Indexed: 12/12/2022] Open
Abstract
During pregnancy, the placenta is established as a primary organ for drug transport at the maternal-fetal interface. The fetal membranes (FM) also form an interface with maternal tissues; however, their role in drug transport has not been previously investigated. Knowledge of drug transport across this feto-maternal interface along with the placenta can improve new drug development and testing for use during pregnancy. We also hypothesize that extracellular vesicles (exosomes 30–160 nm) released from the FM and placental cells may also contain drug transport proteins and might impact drug trafficking across the feto-maternal interfaces. The objectives were to (1) localize the breast cancer resistance protein (BCRP) in human FM; (2) determine the drug transport function of BCRP in chorion trophoblast cells (CTCs) of the FM; and (3) investigate the presence of BCRP in FM cell-derived exosomes, as a paracrine modifier of the tissue environment for transport functions. The gene and protein expressions of ABCG2/BCRP in FMs were determined by quantitative real-time PCR (qRT-PCR) and western blotting (WB) and were localized by immunohistochemistry (IHC). The surface expression of BCRP in FM cells was determined by flow cytometry. The functional role of BCRP was assessed by an EFFLUX dye multidrug resistance assay. The presence of BCRP in exosomes derived from CTCs and BeWo cells was examined using ExoView®. Data derived from CTCs are compared with placental trophoblast cells (BeWo). BCRP is expressed and localized in the fetal membrane, primarily in the chorion trophoblast cell layer and scarcely in the amnion epithelial layer (AEC), and primarily localized on both AEC and CTC cell surfaces. Efflux assay data showed that FM cells have similar drug resistance activity as BeWo cells, suggesting that FM also have drug transportation capabilities. BeWo- and CTC-derived exosomes expressed limited BCRP protein on the surface, so it was predominantly contained in the exosomal lumen. As far as we are aware, this is the first study to report BCRP expression in fetal membrane cells and as cargo in fetal membrane-derived exosomes. We report that fetal membrane cells are capable of drug transportation. Based on these results, investigational drug trials should include the FM and its exosomes as possible drug transportation routes in pregnancy.
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16
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Kurosawa K, Noguchi S, Nishimura T, Tomi M, Chiba K. Transplacental pharmacokinetic model of digoxin based on ex vivo human placental perfusion study. Drug Metab Dispos 2021; 50:287-298. [PMID: 34903589 DOI: 10.1124/dmd.121.000648] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 12/10/2021] [Indexed: 11/22/2022] Open
Abstract
Digoxin is used as first-line therapy to treat fetal supraventricular tachycardia, though because of the narrow therapeutic window, it is essential to estimate digoxin exposure in the fetus. The data from ex vivo human placental perfusion study are used to predict in vivo fetal exposure noninvasively, but the ex vivo fetal to maternal concentration (F:M) ratios observed in digoxin perfusion studies were much lower than those in vivo In the present study, we developed a human transplacental pharmacokinetic model of digoxin using previously reported ex vivo human placental perfusion data. The model consists of maternal intervillous, fetal capillary, non-perfused tissue and syncytiotrophoblast compartments, with multidrug resistance protein (MDR) 1 and influx transporter at the microvillous membrane (MVM) and influx and efflux transporters at the basal plasma membrane (BM). The model-predicted F:M ratio was 0.66, which is consistent with the mean in vivo value of 0.77 (95% confidence interval: 0.64-0.91). The time to achieve the steady state from the ex vivo perfusion study was estimated as 1,500 min, which is considerably longer than the reported ex vivo experimental durations, and this difference is considered to account for the inconsistency between ex vivo and in vivo F:M ratios. Reported digoxin concentrations in a drug-drug interaction study with MDR1 inhibitors quinidine and verapamil were consistent with the profiles simulated by our model incorporating inhibition of efflux transporter at the BM in addition to MVM. Our modeling and simulation approach should be a powerful tool to predict fetal exposure and DDIs in human placenta. Significance Statement We developed a human transplacental pharmacokinetic model of digoxin based on ex vivo human placental perfusion studies in order to resolve inconsistencies between reported ex vivo and in vivo fetal to maternal concentration ratios. The model successfully predicted the in vivo fetal exposure to digoxin and the drug-drug interactions of digoxin and P-glycoprotein/multidrug resistance protein 1 inhibitors in human placenta.
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Affiliation(s)
- Ken Kurosawa
- Department of Clinical Pharmacology, Janssen Pharmaceutical K.K, Japan
| | | | | | | | - Koji Chiba
- Laboratory of Clinical Pharmacology, Yokohama University of Pharmacy, Japan
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17
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Yamashita M, Markert UR. Overview of Drug Transporters in Human Placenta. Int J Mol Sci 2021; 22:ijms222313149. [PMID: 34884954 PMCID: PMC8658420 DOI: 10.3390/ijms222313149] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 11/25/2021] [Accepted: 11/30/2021] [Indexed: 01/10/2023] Open
Abstract
The transport of drugs across the placenta is a point of great importance in pharmacotherapy during pregnancy. However, the knowledge of drug transport in pregnancy is mostly based on experimental clinical data, and the underlying biological mechanisms are not fully understood. In this review, we summarize the current knowledge of drug transporters in the human placenta. We only refer to human data since the placenta demonstrates great diversity among species. In addition, we describe the experimental models that have been used in human placental transport studies and discuss their availability. A better understanding of placental drug transporters will be beneficial for the health of pregnant women who need drug treatment and their fetuses.
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Affiliation(s)
- Michiko Yamashita
- Department of Obstetrics and Gynecology, Graduate School of Medicine, Osaka University, Osaka 5650871, Japan
- Placenta Lab, Department of Obstetrics, Jena University Hospital, Am Klinikum 1, 07747 Jena, Germany;
- Correspondence:
| | - Udo R. Markert
- Placenta Lab, Department of Obstetrics, Jena University Hospital, Am Klinikum 1, 07747 Jena, Germany;
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18
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Dysregulated Autophagy Leads to Oxidative Stress and Aberrant Expression of ABC Transporters in Women with Early Miscarriage. Antioxidants (Basel) 2021; 10:antiox10111742. [PMID: 34829614 PMCID: PMC8614945 DOI: 10.3390/antiox10111742] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/21/2021] [Accepted: 10/25/2021] [Indexed: 12/19/2022] Open
Abstract
Early miscarriage (EMC) is a devastating obstetrical complication. ATP-binding cassette (ABC) transporters mediate cholesterol transfer across the placenta and enhance cell survival by effluxing substrates from target cells in the presence of stressors. Recent evidence reports an intricate interplay between autophagy and ABC transporters. We hypothesized that dysregulated autophagy and oxidative stress (OS) in the placenta leads to abnormal expression of membrane transporters contributing to poor pregnancy survival in EMC. We determined mRNA and protein expression of autophagy genes (Beclin-1/Bcl-2/LC3I/LC3II/p62) and ABC transporters (ABCA1/ABCG1/ABCG2) in placentae from EMC patients (n = 20), term controls (n = 19), first trimester (n = 6), and term controls (n = 5) controls. Oxidative/antioxidant status and biomarkers of oxidative damage were evaluated in maternal serum and placentae from EMC and healthy controls. In EMC, placental expression of LC3II/LC3I as well as of the key autophagy regulatory proteins Beclin-1 and Bcl-2 were reduced, whereas p62 was increased. Both in the serum and placentae of EMC patients, total OS was elevated reflected by increased oxidative damage markers (8-OHdG/malondialdehyde/carbonyl formation) accompanied by diminished levels of total antioxidant status, catalase, and total glutathione. Furthermore, we found reduced ABCG1 and increased ABCG2 expression. These findings suggest that a decreased autophagy status triggers Bcl-2-dependent OS leading to macromolecule damage in EMC placentae. The decreased expression of ABCG1 contributes to reduced cholesterol export to the growing fetus. Increasing ABCG2 expression could represent a protective feedback mechanism under inhibited autophagy conditions. In conclusion, dysregulated autophagy combined with increased oxidative toxicity and aberrant expression of placental ABC transporters affects materno-fetal health in EMC.
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19
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CoNaMad-Cohorte de Nacimiento de Madre de Dios/Madre de Dios Birth Cohort to Study Effects of in-utero Trace Metals Exposure in the Southern Peruvian Amazon. Ann Glob Health 2021; 87:69. [PMID: 34327116 PMCID: PMC8300581 DOI: 10.5334/aogh.3152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background: In-utero exposure to mercury and other trace metals pose a significant threat to child health and development, but exposures and health impacts in artisanal and small-scale gold mining (ASGM) environments are poorly defined. Objectives: We describe the CONAMAD study design, a prospective birth cohort consisting of multiparous women (18 and over) living in rural and peri-urban Peruvian Amazon communities exposed to ASGM. Methods: Pregnant women are enrolled from health posts across four zones of Madre de Dios, Peru. Data are collected at enrollment, childbirth, and (planned) 36-48 months. At enrollment, hair samples for mercury assessment, demographic and clinical data are obtained. At birth, we obtain venous and cord blood, placenta, hair, toenails, and saliva. Findings: Two hundred seventy mothers were enrolled at an average 20 weeks gestational age with no differences in maternal characteristics across zones. Two hundred fifteen mothers were successfully followed at birth. We obtained 214 maternal and cord blood samples, 211 maternal and 212 infant hair samples, 212 placenta samples, 210 infant saliva samples, and 214 infant dried blood spots. Data collected will allow for testing our primary hypotheses of maternal malnutrition modifying ratios of cord:maternal blood total mercury (tHg), cord blood:maternal hair tHg, and infant:maternal hair tHg, and whether chemical mixtures (Hg, Pb, Cd) have synergistic effects on infant neurodevelopment. Conclusions: CONAMAD is designed to collect and store samples for future processing and hypothesis testing associated with in-utero mercury exposure and child development. We have completed the exposure assessments and will conduct a follow-up of mothers to evaluate early child development outcomes, including developmental delay and growth. These data offer insights into disease mechanisms, exposure prevention, and policy guidance for countries where ASGM is prevalent.
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20
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Boos JA, Misun PM, Brunoldi G, Furer LA, Aengenheister L, Modena M, Rousset N, Buerki-Thurnherr T, Hierlemann A. Microfluidic Co-Culture Platform to Recapitulate the Maternal-Placental-Embryonic Axis. Adv Biol (Weinh) 2021; 5:e2100609. [PMID: 34145989 DOI: 10.1002/adbi.202100609] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/28/2021] [Indexed: 12/22/2022]
Abstract
Safety assessment of the effects of developmental toxicants on pregnant women is challenging, and systemic effects in embryo-maternal interactions are largely unknown. However, most developmental toxicity studies rely on animal trials, while in vitro platforms that recapitulate the maternal-placental-embryonic axis are missing. Here, the development of a dedicated microfluidic device for co-cultivation of a placental barrier and 3D embryoid bodies to enable systemic toxicity testing at the embryo-maternal interface is reported. The microfluidic platform features simple handling and recuperation of both tissue models, which facilitates post-hoc in-depth analysis at the tissue and single-cell level. Gravity-driven flow enables inter-tissue communication through the liquid phase as well as simple and robust operation and renders the platform parallelizable. As a proof of concept and to demonstrate platform use for systemic embryotoxicity testing in vitro, maternal exposure to plastic microparticles is emulated, and microparticle effects on the embryo-placental co-culture are investigated.
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Affiliation(s)
- Julia A Boos
- Bioengineering Laboratory, Department of Biosystems Science and Engineering, ETH Zürich, Mattenstrasse 26, Basel, 4058, Switzerland
| | - Patrick M Misun
- Bioengineering Laboratory, Department of Biosystems Science and Engineering, ETH Zürich, Mattenstrasse 26, Basel, 4058, Switzerland
| | - Giulia Brunoldi
- Bioengineering Laboratory, Department of Biosystems Science and Engineering, ETH Zürich, Mattenstrasse 26, Basel, 4058, Switzerland
| | - Lea A Furer
- Particles@Barriers Group, Particles-Biology Interactions, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen, 9014, Switzerland
| | - Leonie Aengenheister
- Particles@Barriers Group, Particles-Biology Interactions, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen, 9014, Switzerland
| | - Mario Modena
- Bioengineering Laboratory, Department of Biosystems Science and Engineering, ETH Zürich, Mattenstrasse 26, Basel, 4058, Switzerland
| | - Nassim Rousset
- Bioengineering Laboratory, Department of Biosystems Science and Engineering, ETH Zürich, Mattenstrasse 26, Basel, 4058, Switzerland
| | - Tina Buerki-Thurnherr
- Particles@Barriers Group, Particles-Biology Interactions, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen, 9014, Switzerland
| | - Andreas Hierlemann
- Bioengineering Laboratory, Department of Biosystems Science and Engineering, ETH Zürich, Mattenstrasse 26, Basel, 4058, Switzerland
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21
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Mirdamadi K, Kwok J, Nevo O, Berger H, Piquette-Miller M. Impact of Th-17 Cytokines on the Regulation of Transporters in Human Placental Explants. Pharmaceutics 2021; 13:881. [PMID: 34203644 PMCID: PMC8232183 DOI: 10.3390/pharmaceutics13060881] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 11/16/2022] Open
Abstract
Activated T helper 17 (Th-17) cytokines play a role in the pathophysiology of autoimmune and infectious diseases. While these diseases affect many women of childbearing age, little is known about the effect of these cytokines on placental transporters. As several pro-inflammatory cytokines impact the expression of ABC and SLC placental transporters, we hypothesized that these transporters may be similarly altered by elevated levels of circulating Th-17 cytokines. Cultured term human villous explants were treated with IL-17A, IL-22, or IL-23, alone or in combination. Samples were analyzed using qRT-PCR and Western blotting. The mRNA expression of OATP2B1 was significantly downregulated in explants by all individual cytokines and combination treatments, while decreased protein expression was seen with IL-23 and combination (p < 0.01). Combination treatment decreased the mRNA expression of BCRP and OAT4 but increased that of OCT3 (p < 0.01). Decreased accumulation of the OATP substrate, cascade blue, was seen in IL-23-treated choriocarcinoma JAr cells (p < 0.01). Elevated Th-17 cytokines, which are seen in infectious and autoimmune diseases, affect the expression and activity of OATP2B1, as well as mRNA expression of placental BCRP, OAT4, and OCT3. This dysregulation could impact the fetal exposure to endogenous and exogenous substrates.
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Affiliation(s)
- Kamelia Mirdamadi
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada; (K.M.); (J.K.); (O.N.)
| | - Jacinda Kwok
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada; (K.M.); (J.K.); (O.N.)
| | - Ori Nevo
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada; (K.M.); (J.K.); (O.N.)
- Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
| | - Howard Berger
- Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada;
| | - Micheline Piquette-Miller
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada; (K.M.); (J.K.); (O.N.)
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22
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Chaphekar N, Dodeja P, Shaik IH, Caritis S, Venkataramanan R. Maternal-Fetal Pharmacology of Drugs: A Review of Current Status of the Application of Physiologically Based Pharmacokinetic Models. Front Pediatr 2021; 9:733823. [PMID: 34805038 PMCID: PMC8596611 DOI: 10.3389/fped.2021.733823] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 09/16/2021] [Indexed: 12/31/2022] Open
Abstract
Pregnancy and the postpartum period are associated with several physiological changes that can alter the pharmacokinetics (PK) and pharmacodynamics (PD) of drugs. For certain drugs, dosing changes may be required during pregnancy and postpartum to achieve drug exposures comparable to what is observed in non-pregnant subjects. There is very limited data on fetal exposure of drugs during pregnancy, and neonatal exposure through transfer of drugs via human milk during breastfeeding. Very few systematic clinical pharmacology studies have been conducted in pregnant and postpartum women due to ethical issues, concern for the fetus safety as well as potential legal ramifications. Over the past several years, there has been an increase in the application of modeling and simulation approaches such as population PK (PopPK) and physiologically based PK (PBPK) modeling to provide guidance on drug dosing in those special patient populations. Population PK models rely on measured PK data, whereas physiologically based PK models incorporate physiological, preclinical, and clinical data into the model to predict drug exposure during pregnancy. These modeling strategies offer a promising approach to identify the drugs with PK changes during pregnancy to guide dose optimization in pregnancy, when there is lack of clinical data. PBPK modeling is also utilized to predict the fetal exposure of drugs and drug transfer via human milk following maternal exposure. This review focuses on the current status of the application of PBPK modeling to predict maternal and fetal exposure of drugs and thereby guide drug therapy during pregnancy.
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Affiliation(s)
- Nupur Chaphekar
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, United States
| | - Prerna Dodeja
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, United States
| | - Imam H Shaik
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, United States
| | - Steve Caritis
- Department of Obstetrics, Gynecology and Reproductive Sciences, Magee Women's Hospital of UPMC, School of Medicine, University of Pittsburgh, Pittsburgh, PA, United States
| | - Raman Venkataramanan
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Obstetrics, Gynecology and Reproductive Sciences, Magee Women's Hospital of UPMC, School of Medicine, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, United States
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Post-Vaccination Yellow Fever Antiserum Reduces Zika Virus in Embryoid Bodies When Placental Cells are Present. Vaccines (Basel) 2020; 8:vaccines8040752. [PMID: 33322247 PMCID: PMC7768546 DOI: 10.3390/vaccines8040752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/09/2020] [Accepted: 11/29/2020] [Indexed: 11/18/2022] Open
Abstract
Zika virus (ZIKV) is a flavivirus that originated in Africa but emerged in Latin America in 2015. In this region, other flaviviruses such as Dengue (DENV), West Nile, and Yellow Fever virus (YFV) also circulate, allowing for possible antigenic cross-reactivity to impact viral infections and immune responses. Studies have found antibody-mediated enhancement between DENV and ZIKV, but the impact of YFV antibodies on ZIKV infection has not been fully explored. ZIKV infections cause congenital syndromes, such as microcephaly, necessitating further research into ZIKV vertical transmission through the placental barrier. Recent advancements in biomedical engineering have generated co-culture methods that allow for the in vitro recapitulation of the maternal–fetal interface. This study utilized a transwell assay, which was a co-culture model utilizing human placental syncytiotrophoblasts, fetal umbilical cells, and a differentiating embryoid body, to replicate the maternal–fetal axis. To determine if cross-reactive YFV vaccine antibodies impacted the pathogenesis of ZIKV across the maternal–fetal axis, syncytiotrophoblasts were inoculated with ZIKV or ZIKV incubated with YFV vaccine antisera, and the viral load was measured 72 h post-inoculation. Here, we report that BeWo and HUVEC cells were permissive to ZIKV and that the impact of YFV post-vaccination antibodies on ZIKV replication was cell line-dependent. Embryoid bodies were also permissive to ZIKV, and the presence of YFV antibodies collected 4–14 months post-vaccination reduced ZIKV infection when placental cells were present. However, when directly infected with ZIKV, the embryoid bodies displayed significantly increased viral loads in the presence of YFV antiserum taken 30 days post-vaccination. The data show that each of the cell lines and EBs have a unique response to ZIKV complexed with post-vaccination serum, suggesting there may be cell-specific mechanisms that impact congenital ZIKV infections. Since ZIKV infections can cause severe congenital syndromes, it is crucial to understand any potential enhancement or protection offered from cross-reactive, post-vaccination antibodies.
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Granitzer S, Ellinger I, Khan R, Gelles K, Widhalm R, Hengstschläger M, Zeisler H, Desoye G, Tupova L, Ceckova M, Salzer H, Gundacker C. In vitro function and in situ localization of Multidrug Resistance-associated Protein (MRP)1 (ABCC1) suggest a protective role against methyl mercury-induced oxidative stress in the human placenta. Arch Toxicol 2020; 94:3799-3817. [PMID: 32915249 PMCID: PMC7603445 DOI: 10.1007/s00204-020-02900-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 09/02/2020] [Indexed: 02/06/2023]
Abstract
Methyl mercury (MeHg) is an organic highly toxic compound that is transported efficiently via the human placenta. Our previous data suggest that MeHg is taken up into placental cells by amino acid transporters while mercury export from placental cells mainly involves ATP binding cassette (ABC) transporters. We hypothesized that the ABC transporter multidrug resistance-associated protein (MRP)1 (ABCC1) plays an essential role in mercury export from the human placenta. Transwell transport studies with MRP1-overexpressing Madin-Darby Canine Kidney (MDCK)II cells confirmed the function of MRP1 in polarized mercury efflux. Consistent with this, siRNA-mediated MRP1 gene knockdown in the human placental cell line HTR-8/SVneo resulted in intracellular mercury accumulation, which was associated with reduced cell viability, accompanied by increased cytotoxicity, apoptosis, and oxidative stress as determined via the glutathione (GSH) status. In addition, the many sources claiming different localization of MRP1 in the placenta required a re-evaluation of its localization in placental tissue sections by immunofluorescence microscopy using an MRP1-specific antibody that was validated in-house. Taken together, our results show that (1) MRP1 preferentially mediates apical-to-basolateral mercury transport in epithelial cells, (2) MRP1 regulates the GSH status of placental cells, (3) MRP1 function has a decisive influence on the viability of placental cells exposed to low MeHg concentrations, and (4) the in situ localization of MRP1 corresponds to mercury transport from maternal circulation to the placenta and fetus. We conclude that MRP1 protects placental cells from MeHg-induced oxidative stress by exporting the toxic metal and by maintaining the placental cells' GSH status in equilibrium.
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Affiliation(s)
- Sebastian Granitzer
- Karl-Landsteiner Private University for Health Sciences, Krems, Austria
- Institute of Medical Genetics, Medical University of Vienna, Vienna, Austria
| | - Isabella Ellinger
- Institute of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Rumsha Khan
- Institute of Medical Genetics, Medical University of Vienna, Vienna, Austria
- Institute of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Katharina Gelles
- Institute of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Raimund Widhalm
- Karl-Landsteiner Private University for Health Sciences, Krems, Austria
- Institute of Medical Genetics, Medical University of Vienna, Vienna, Austria
| | | | - Harald Zeisler
- Department of Obstetrics and Gynecology, Medical University Vienna, Vienna, Austria
| | - Gernot Desoye
- Department of Obstetrics and Gynecology, Medical University of Graz, Graz, Austria
| | - Lenka Tupova
- Department of Pharmacology and Toxicology, Charles University, Hradec Kralove, Czech Republic
| | - Martina Ceckova
- Department of Pharmacology and Toxicology, Charles University, Hradec Kralove, Czech Republic
| | - Hans Salzer
- Clinic for Pediatrics and Adolescent Medicine, University Hospital Tulln, Tulln, Austria
| | - Claudia Gundacker
- Institute of Medical Genetics, Medical University of Vienna, Vienna, Austria.
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Gorczyca L, Du J, Bircsak KM, Wen X, Vetrano AM, Aleksunes LM. Low oxygen tension differentially regulates the expression of placental solute carriers and ABC transporters. FEBS Lett 2020; 595:811-827. [PMID: 32978975 DOI: 10.1002/1873-3468.13937] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/27/2020] [Accepted: 09/03/2020] [Indexed: 01/12/2023]
Abstract
Low oxygen concentration, or hypoxia, is an important physiological regulator of placental function including chemical disposition. Here, we compared the ability of low oxygen tension to alter the expression of solute carriers (SLC) and ABC transporters in two human placental models, namely BeWo cells and term placental explants. We found that exposure to low oxygen concentration differentially regulates transporter expression in BeWo cells, including downregulation of ENT1, OATP4A1, OCTN2, BCRP, and MRP2/3/5, and upregulation of CNT1, OAT4, OATP2B1, SERT, SOAT, and MRP1. Similar upregulation of MRP1 and downregulation of MRP5 and BCRP were observed in explants, whereas uptake transporters were decreased or unchanged. Furthermore, a screening of transcriptional regulators of transporters revealed that hypoxia leads to a decrease in the mRNA levels of aryl hydrocarbon receptor, nuclear factor erythroid 2-related factor 2, and retinoid x receptor alpha in both human placental models. These data suggest that transporter expression is differentially regulated by oxygen concentration across experimental human placental models.
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Affiliation(s)
- Ludwik Gorczyca
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, USA.,Joint Graduate Program in Toxicology, Rutgers University, Piscataway, NJ, USA
| | - Jianyao Du
- China Pharmaceutical University, Nanjing, China
| | - Kristin M Bircsak
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, USA.,Joint Graduate Program in Toxicology, Rutgers University, Piscataway, NJ, USA
| | - Xia Wen
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, USA
| | - Anna M Vetrano
- Division of Neonatology, Department of Pediatrics, Robert Wood Johnson Medical School, Rutgers University, New Brunswick, NJ, USA
| | - Lauren M Aleksunes
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, USA.,Rutgers Center for Lipid Research, New Jersey Institute for Food, Nutrition, and Health, Rutgers University, New Brunswick, NJ, USA.,Environmental and Occupational Health Sciences Institute, Piscataway, NJ, USA
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Gorczyca L, Aleksunes LM. Transcription factor-mediated regulation of the BCRP/ ABCG2 efflux transporter: a review across tissues and species. Expert Opin Drug Metab Toxicol 2020; 16:239-253. [PMID: 32077332 DOI: 10.1080/17425255.2020.1732348] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Introduction: The breast cancer resistance protein (BCRP/ABCG2) is a member of the ATP-binding cassette superfamily of transporters. Using the energy garnered from the hydrolysis of ATP, BCRP actively removes drugs and endogenous molecules from the cell. With broad expression across the liver, kidney, brain, placenta, testes, and small intestines, BCRP can impact the pharmacokinetics and pharmacodynamics of xenobiotics.Areas covered: The purpose of this review is to summarize the transcriptional signaling pathways that regulate BCRP expression across various tissues and mammalian species. We will cover the endobiotic- and xenobiotic-activated transcription factors that regulate the expression and activity of BCRP. These include the estrogen receptor, progesterone receptor, peroxisome proliferator-activated receptor, constitutive androstane receptor, pregnane X receptor, nuclear factor e2-related factor 2, and aryl hydrocarbon receptor.Expert opinion: Key transcription factors regulate BCRP expression and function in response to hormones and xenobiotics. Understanding this regulation provides an opportunity to improve pharmacotherapeutic outcomes by enhancing the efficacy and reducing the toxicity of drugs that are substrates of this efflux transporter.
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Affiliation(s)
- Ludwik Gorczyca
- Department of Pharmacology and Toxicology, Rutgers University Ernest Mario School of Pharmacy, Piscataway, NJ, USA
| | - Lauren M Aleksunes
- Department of Pharmacology and Toxicology, Rutgers University Ernest Mario School of Pharmacy, Piscataway, NJ, USA.,Division of Toxicology, Environmental and Occupational Health Sciences Institute, Piscataway, NJ, USA
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Rathaur P, SR KJ. Metabolism and Pharmacokinetics of Phytochemicals in the Human Body. Curr Drug Metab 2020; 20:1085-1102. [DOI: 10.2174/1389200221666200103090757] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 08/27/2019] [Accepted: 11/14/2019] [Indexed: 12/12/2022]
Abstract
Background:Phytochemicals are obtained from various plants and used for the treatment of diseases as both traditional and modern medicines. Poor bioavailability of phytochemicals is a major concern in applying phytochemicals as a therapeutic agent. It is, therefore, necessary to understand the metabolism and pharmacokinetics of phytochemicals for its implication as a therapeutic agent.Methods:Articles on the metabolism of phytochemicals from the PubMed database. The articles were classified into the digestion, absorption, metabolism, excretion, toxicity, and bioavailability of phytochemicals and the effect of gut microbiota on the metabolism of phytochemicals.Results:The metabolism of each phytochemical is largely dependent on the individual's digestive ability, membrane transporters, metabolizing enzymes and gut microbiota. Further, the form of the phytochemical and genetic make-up of the individual greatly influences the metabolism of phytochemicals.Conclusion:The metabolism of phytochemicals is mostly depended on the form of phytochemicals and individualspecific variations in the metabolism of phytochemicals. Understanding the metabolism and pharmacokinetics of phytochemicals might help in applying plant-based medicines for the treatment of various diseases.
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Affiliation(s)
- Pooja Rathaur
- Department of Life Science, School of Sciences, Gujarat University, Ahmedabad, India
| | - Kaid Johar SR
- Department of Zoology, Biomedical Technology and Human Genetics, School of Sciences, Gujarat University, Ahmedabad, India
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Bouazza N, Foissac F, Hirt D, Urien S, Benaboud S, Lui G, Treluyer JM. Methodological Approaches to Evaluate Fetal Drug Exposure. Curr Pharm Des 2020; 25:496-504. [PMID: 30892158 DOI: 10.2174/1381612825666190319102812] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 03/16/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Drug prescriptions are usual during pregnancy, however, women and their fetuses still remain an orphan population with regard to drugs efficacy and safety. Most xenobiotics diffuse through the placenta and some of them can alter fetus development resulting in structural abnormalities, growth or functional deficiencies. METHODS To summarize the different methodologies developed towards the prediction of fetal drug exposure. RESULTS Neonatal cord blood concentration is the most specific measurement of the transplacental drug transfer at the end of pregnancy. Using the cord blood and mother drug concentrations altogether, drug exchanges between the mother and fetus can be modeled and quantified via a population pharmacokinetic analysis. Thereafter, it is possible to estimate the fetus exposure and the fetus-to-mother exposure ratio. However, the prediction of placental transfer before any administration to pregnant women is desirable. Animal studies remain difficult to interpret due to structural and functional inter-species placenta differences. The ex-vivo perfusion of the human placental cotyledon is the method of reference to study the human placental transfer of drugs because it is thought to mimic the functional placental tissue. However, extrapolation of data to in vivo situation remains difficult. Some research groups have extensively worked on physiologically based models (PBPK) to predict fetal drug exposure and showed very encouraging results. CONCLUSION PBPK models appeared to be a very promising tool in order to predict fetal drug exposure in-silico. However, these models mainly picture the end of pregnancy and knowledge regarding both, development of the placental permeability and transporters is strongly needed.
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Affiliation(s)
- Naïm Bouazza
- Universite Paris Descartes, EA7323, Sorbonne Paris Cite, France.,Unite de Recherche Clinique Paris Descartes Necker Cochin, AP-HP, France.,CIC-1419 Inserm, Cochin-Necker, Paris, France
| | - Frantz Foissac
- Universite Paris Descartes, EA7323, Sorbonne Paris Cite, France.,Unite de Recherche Clinique Paris Descartes Necker Cochin, AP-HP, France.,CIC-1419 Inserm, Cochin-Necker, Paris, France
| | - Déborah Hirt
- Universite Paris Descartes, EA7323, Sorbonne Paris Cite, France.,Unite de Recherche Clinique Paris Descartes Necker Cochin, AP-HP, France.,CIC-1419 Inserm, Cochin-Necker, Paris, France.,Service de Pharmacologie Clinique, Hôpital Cochin, AP-HP, Groupe Hospitalier Paris Centre, Paris, France
| | - Saïk Urien
- Universite Paris Descartes, EA7323, Sorbonne Paris Cite, France.,Unite de Recherche Clinique Paris Descartes Necker Cochin, AP-HP, France.,CIC-1419 Inserm, Cochin-Necker, Paris, France
| | - Sihem Benaboud
- Universite Paris Descartes, EA7323, Sorbonne Paris Cite, France.,Unite de Recherche Clinique Paris Descartes Necker Cochin, AP-HP, France.,CIC-1419 Inserm, Cochin-Necker, Paris, France.,Service de Pharmacologie Clinique, Hôpital Cochin, AP-HP, Groupe Hospitalier Paris Centre, Paris, France
| | - Gabrielle Lui
- Universite Paris Descartes, EA7323, Sorbonne Paris Cite, France.,Service de Pharmacologie Clinique, Hôpital Cochin, AP-HP, Groupe Hospitalier Paris Centre, Paris, France
| | - Jean-Marc Treluyer
- Universite Paris Descartes, EA7323, Sorbonne Paris Cite, France.,Unite de Recherche Clinique Paris Descartes Necker Cochin, AP-HP, France.,CIC-1419 Inserm, Cochin-Necker, Paris, France.,Service de Pharmacologie Clinique, Hôpital Cochin, AP-HP, Groupe Hospitalier Paris Centre, Paris, France
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Yin S, Zhang J, Guo F, Poma G, Covaci A, Liu W. Transplacental transfer mechanism of organochlorine pesticides: An in vitro transcellular transport study. ENVIRONMENT INTERNATIONAL 2020; 135:105402. [PMID: 31869730 DOI: 10.1016/j.envint.2019.105402] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 12/07/2019] [Accepted: 12/09/2019] [Indexed: 06/10/2023]
Abstract
Recent studies show that, even after being banned for agricultural applications for over 30 years, organochlorine pesticides (OCPs), including hexachlorocyclohexanes (HCHs) and dichlorodiphenyltrichloroethane (DDT) and its metabolites (DDXs), can still be found in various biological matrices and pose a potential hazard to the fetus in the womb. This study aimed to investigate the possible transplacental transfer mechanism of OCPs using an in vitro placental model. The results showed that for HCHs and DDXs, the placenta had a potential protection mechanism for the fetus by having higher efflux than intake active transport efficiency to transfer the xenobiotic out of the fetal circulation. No enantiomer-specific transport was observed for the chiral OCPs in vitro, hints simple diffusion played the major role in the transplacental transfer. Metabolic and transporter inhibitors were applied in the transepithelial transport experiment to evaluate the role that major transporting protein played in the active efflux process. The ATP production inhibitors were observed to have significant inhibition on transfer, proving the hypothesis that active transport participates in the transplacental transport of OCPs in humans. Multiple transporters contributed simultaneously in the active transport for the OCPs. In this study, we could confirm that the transplacental transfer of OCPs is a combination of simple diffusion and active transport. ATP-binding cassette (ABC) superfamily transporters on the placenta contribute in the active transport. These findings could improve the understanding of the mechanisms of transplacental transfer of the OCPs.
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Affiliation(s)
- Shanshan Yin
- Institution of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jianyun Zhang
- Institution of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Department of Preventive Medicine, School of Medicine, Hangzhou Normal University, Hangzhou 310036, China
| | - Fangjie Guo
- Institution of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Giulia Poma
- Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Adrian Covaci
- Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium.
| | - Weiping Liu
- Institution of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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30
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Liu L, Liu X. Contributions of Drug Transporters to Blood-Placental Barrier. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1141:505-548. [PMID: 31571173 DOI: 10.1007/978-981-13-7647-4_11] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The placenta is the only organ linking two different individuals, mother and fetus, termed as blood-placental barrier. The functions of the blood-placental barrier are to regulate material transfer between the maternal and fetal circulation. The main functional units are the chorionic villi within which fetal blood is separated by only three or four cell layers (placental membrane) from maternal blood in the surrounding intervillous space. A series of drug transporters such as P-glycoprotein (P-GP), breast cancer resistance protein (BCRP), multidrug resistance-associated proteins (MRP1, MRP2, MRP3, MRP4, and MRP5), organic anion-transporting polypeptides (OATP4A1, OATP1A2, OATP1B3, and OATP3A1), organic anion transporter 4 (OAT4), organic cation transporter 3 (OCT3), organic cation/carnitine transporters (OCTN1 and OCTN2), multidrug and toxin extrusion 1 (MATE1), and equilibrative nucleoside transporters (ENT1 and ENT2) have been demonstrated on the apical membrane of syncytiotrophoblast, some of which also expressed on the basolateral membrane of syncytiotrophoblast or fetal capillary endothelium. These transporters are involved in transport of most drugs in the placenta, in turn, affecting drug distribution in fetus. Moreover, expressions of these transporters in the placenta often vary along with the gestational ages and are also affected by pathophysiological factor. This chapter will mainly illustrate function and expression of these transporters in placentas, their contribution to drug distribution in fetus, and their clinical significance.
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Affiliation(s)
- Li Liu
- China Pharmaceutical University, Nanjing, China
| | - Xiaodong Liu
- China Pharmaceutical University, Nanjing, China.
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31
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Dallmann A, Liu XI, Burckart GJ, van den Anker J. Drug Transporters Expressed in the Human Placenta and Models for Studying Maternal-Fetal Drug Transfer. J Clin Pharmacol 2019; 59 Suppl 1:S70-S81. [PMID: 31502693 PMCID: PMC7304533 DOI: 10.1002/jcph.1491] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 06/25/2019] [Indexed: 12/30/2022]
Abstract
Tremendous efforts have been directed to investigate the ontogeny of drug transporters in fetuses, neonates, infants, and children based on their importance for understanding drug pharmacokinetics. During development (ie, in the fetus and newborn infant), there is special interest in transporters expressed in the placenta that modulate placental drug transfer. Many of these transporters can decrease or increase drug concentrations in the fetus and at birth, stressing the relevance of elucidating expression in the placenta and potential gestational age-dependent changes therein. Hence, the main objective of this review was to summarize the current knowledge about expression and ontogeny of transporters in the human placenta in healthy pregnant women. In addition, various in vitro, ex vivo, and in silico models that can be used to investigate placental drug transfer, namely, placental cancer cell lines, ex vivo cotyledon perfusion experiments, and physiologically based pharmacokinetic (PBPK) models, are discussed together with their advantages and shortcomings. A particular focus was placed on PBPK models because these models can integrate different types of information, such as expression data, ontogeny information, and observations obtained from the ex vivo cotyledon perfusion experiment. Such a mechanistic modeling framework may leverage the available information and ultimately help to improve knowledge about the adequacy and safety of pharmacotherapy in pregnant women and their fetuses.
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Affiliation(s)
- André Dallmann
- Pediatric Pharmacology and Pharmacometrics Research Center, University Children’s Hospital Basel (UKBB), Switzerland
| | - Xiaomei I. Liu
- Division of Clinical Pharmacology, Children’s National Medical Center, Washington, DC, USA
| | - Gilbert J. Burckart
- US Food and Drug Administration, Office of Clinical Pharmacology, Silver Spring, MD, USA
| | - John van den Anker
- Pediatric Pharmacology and Pharmacometrics Research Center, University Children’s Hospital Basel (UKBB), Switzerland
- Division of Clinical Pharmacology, Children’s National Medical Center, Washington, DC, USA
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Depoix CL, Colson A, Mhallem-Gziri M, Hubinont C, Debieve F. Effects of chemotherapy on placental development and function using in vitro culture of human primary cytotrophoblasts. Invest New Drugs 2019; 38:547-557. [PMID: 31155684 DOI: 10.1007/s10637-019-00800-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 05/22/2019] [Indexed: 02/01/2023]
Abstract
Introduction Cancers during pregnancy can be treated with chemotherapy after the first trimester but the treatment is associated with smaller placentas and an increased risk of stillbirth, fetal growth retardation and preterm delivery. We decided to assess the effect of several chemotherapeutic agents on placental development by using in vitro culture of human term cytotrophoblasts. Methods Cytotrophoblasts isolated from term placentas were cultured for 48 h and treated for 24 h with epirubicin, docetaxel, vinblastine, methotrexate, tamoxifen, 4-hydroxytamoxifen, and endoxifen. First, cell viability was assessed. Then, the effect of the treatment on trophoblast differentiation and placental angiogenesis was assessed by quantifying hCG and PlGF mRNA and protein expression. Finally, the expression of two efflux transporters, BCRP and MDR1 was investigated. Results Epirubicin only strongly decreased cell viability. Epirubicin, docetaxel, and vinblastine inhibited HCGB and PlGF expression while methotrexate, tamoxifen and its two metabolites increased it. BCRP was essentially expressed in syncytiotrophoblasts and MDR1 in undifferentiated cytotrophoblasts. Their expression was not affected by the drugs but vinblastine increased BCRP mRNA expression by 2.8-fold. Discussion The most commonly used chemotherapeutic drugs are well supported in vitro by syncytiotrophoblasts, except for epirubicin, which was very cytotoxic. Chemotherapy perturbed the expression of genes normally upregulated during placental differentiation and angiogenesis but not the expression of the drug transporters. Further studies looking at the effect of combination therapy and the transporter capacities to reject the drugs will be needed to better define the effects of chemotherapy on placental development and function.
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Affiliation(s)
- Christophe Louis Depoix
- Department of Obstetrics, Institut de Recherche Clinique et Expérimentale (IREC), Université Catholique de Louvain, Avenue Mounier 52, 5th floor, Woluwe-Saint-Lambert, 1200, Bruxelles, Belgium.
| | - Arthur Colson
- Department of Obstetrics, Institut de Recherche Clinique et Expérimentale (IREC), Université Catholique de Louvain, Avenue Mounier 52, 5th floor, Woluwe-Saint-Lambert, 1200, Bruxelles, Belgium
| | - Mina Mhallem-Gziri
- Department of Obstetrics, Institut de Recherche Clinique et Expérimentale (IREC), Université Catholique de Louvain, Avenue Mounier 52, 5th floor, Woluwe-Saint-Lambert, 1200, Bruxelles, Belgium
| | - Corinne Hubinont
- Department of Obstetrics, Institut de Recherche Clinique et Expérimentale (IREC), Université Catholique de Louvain, Avenue Mounier 52, 5th floor, Woluwe-Saint-Lambert, 1200, Bruxelles, Belgium
| | - Frederic Debieve
- Department of Obstetrics, Institut de Recherche Clinique et Expérimentale (IREC), Université Catholique de Louvain, Avenue Mounier 52, 5th floor, Woluwe-Saint-Lambert, 1200, Bruxelles, Belgium
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Li X, Tian Y, Tu MJ, Ho PY, Batra N, Yu AM. Bioengineered miR-27b-3p and miR-328-3p modulate drug metabolism and disposition via the regulation of target ADME gene expression. Acta Pharm Sin B 2019; 9:639-647. [PMID: 31193825 PMCID: PMC6543075 DOI: 10.1016/j.apsb.2018.12.002] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 11/07/2018] [Accepted: 11/15/2018] [Indexed: 12/31/2022] Open
Abstract
Drug-metabolizing enzymes, transporters, and nuclear receptors are essential for the absorption, distribution, metabolism, and excretion (ADME) of drugs and xenobiotics. MicroRNAs participate in the regulation of ADME gene expression via imperfect complementary Watson-Crick base pairings with target transcripts. We have previously reported that Cytochrome P450 3A4 (CYP3A4) and ATP-binding cassette sub-family G member 2 (ABCG2) are regulated by miR-27b-3p and miR-328-3p, respectively. Here we employed our newly established RNA bioengineering technology to produce bioengineered RNA agents (BERA), namely BERA/miR-27b-3p and BERA/miR-328-3p, via fermentation. When introduced into human cells, BERA/miR-27b-3p and BERA/miR-328-3p were selectively processed to target miRNAs and thus knock down CYP3A4 and ABCG2 mRNA and their protein levels, respectively, as compared to cells treated with vehicle or control RNA. Consequently, BERA/miR-27b-3p led to a lower midazolam 1'-hydroxylase activity, indicating the reduction of CYP3A4 activity. Likewise, BERA/miR-328-3p treatment elevated the intracellular accumulation of anticancer drug mitoxantrone, a classic substrate of ABCG2, hence sensitized the cells to chemotherapy. The results indicate that biologic miRNA agents made by RNA biotechnology may be applied to research on miRNA functions in the regulation of drug metabolism and disposition that could provide insights into the development of more effective therapies.
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Key Words
- 3′-UTR, 3′-untranslated region;, VDR, vitamin D receptor
- ABCG2
- ABCG2, ATP-binding cassette sub-family G member 2;, ADME, absorption, distribution, metabolism, and excretion
- BERA, bioengineered RNA agent;, CYP, cytochrome P450
- Bioengineered RNA
- CYP3A4
- Drug disposition
- E. coli, Escherichia coli;, FPLC, fast protein liquid chromatography
- LC--MS/MS, liquid chromatographytandem mass spectroscopy;, microRNA, miR or miRNA
- RNAi, RNA interference;, RT-qPCR, reverse transcription quantitative real-time polymerase chain reaction
- RXRα, retinoid X receptor α;, tRNA, transfer RNA
- miR-27b
- miR-328
- ncRNA, noncoding RNA;, PAGE, polyacrylamide gel electrophoresis
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Affiliation(s)
- Xin Li
- Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China
- Department of Biochemistry & Molecular Medicine, UC Davis School of Medicine, Sacramento, CA 95817, USA
| | - Ye Tian
- Lab for Bone Metabolism, Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi׳an 710072, China
- Department of Biochemistry & Molecular Medicine, UC Davis School of Medicine, Sacramento, CA 95817, USA
| | - Mei-Juan Tu
- Department of Biochemistry & Molecular Medicine, UC Davis School of Medicine, Sacramento, CA 95817, USA
| | - Pui Yan Ho
- Department of Biochemistry & Molecular Medicine, UC Davis School of Medicine, Sacramento, CA 95817, USA
| | - Neelu Batra
- Department of Biochemistry & Molecular Medicine, UC Davis School of Medicine, Sacramento, CA 95817, USA
| | - Ai-Ming Yu
- Department of Biochemistry & Molecular Medicine, UC Davis School of Medicine, Sacramento, CA 95817, USA
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34
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Polachek H, Debotton N, Feinshtein V, Rubin M, Ben-Zvi Z, Holcberg G, Agbaria R, Dahan A. The role of various transporters in the placental uptake of ofloxacin in an in vitro model of human villous trophoblasts. DRUG DESIGN DEVELOPMENT AND THERAPY 2018; 12:4129-4138. [PMID: 30584277 PMCID: PMC6284538 DOI: 10.2147/dddt.s181493] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Introduction Six years after the US Food and Drug Administration approval of the broad-spectrum antibiotic ofloxacin (OFLX), the chiral switching of this racemic mixture resulted in a drug composed of the L-optical isomer levofloxacin (LVFX). Since both fluoroquinolones (FQs) were introduced to the pharmaceutical market, they have been widely prescribed by physicians, with careful administration during pregnancy and breastfeeding. Therefore, the role of the influx and efflux placental transporters in the concentrations of these drugs that permeate through human placental barrier model was investigated in this study. Methods The contribution of major carriers on the transplacental flux of OFLX and LVFX uptake into choriocarcinoma BeWo cells was evaluated in the presence vs absence of well-known inhibitors. Results Our results reveal that neither the influx transporters such as organic cation transporters, organic anion transporters, and monocarboxylate transporters nor the efflux transporters such as P-glycoprotein or breast cancer resistance protein significantly affected the transport of OFLX. In contrast, multiple transporters revealed pronounced involvement in the transfer of the levorotatory enantiomer in and out of the in vitro placental barrier. These data suggest a non-carrier-mediated mechanism of transport of the racemic mixture, while LVFX is subjected to major influx and efflux passage through the placental brush border membranes. Conclusion This study provides underlying insights to elucidate the governing factors that influence the flux of these FQs through organ barriers, in view of the controversial safety profile of these drugs in pregnant population.
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Affiliation(s)
- Hana Polachek
- Department of Clinical Pharmacology, School of Pharmacy, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel,
| | - Nir Debotton
- Department of Chemical Engineering, Shenkar College of Engineering and Design, Ramat-Gan, Israel
| | - Valeria Feinshtein
- Department of Clinical Pharmacology, School of Pharmacy, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel,
| | - Mazal Rubin
- Department of Clinical Pharmacology, School of Pharmacy, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel,
| | - Zvi Ben-Zvi
- Department of Clinical Pharmacology, School of Pharmacy, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel,
| | - Gershon Holcberg
- Division of Obstetrics and Gynecology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Riad Agbaria
- Department of Clinical Pharmacology, School of Pharmacy, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel,
| | - Arik Dahan
- Department of Clinical Pharmacology, School of Pharmacy, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel,
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35
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Kallol S, Moser-Haessig R, Ontsouka CE, Albrecht C. Comparative expression patterns of selected membrane transporters in differentiated BeWo and human primary trophoblast cells. Placenta 2018; 72-73:48-52. [PMID: 30501881 DOI: 10.1016/j.placenta.2018.10.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 10/25/2018] [Accepted: 10/27/2018] [Indexed: 02/07/2023]
Abstract
Although placental membrane transporters have an important impact on materno-fetal nutrient transfer, placental cell models are poorly characterized regarding transporter expression. We assessed the mRNA expression of 26 physiologically important solute carriers and ABC transporters in BeWo (b30 clone) and primary human trophoblast cells (PHT) before and after syncytialization. 77% of the transporters showed similar mRNA expression changes between BeWo and PHT after syncytialization. Selected transporters, however, were either lacking in BeWo or showed different trends after syncytialization. In conclusion, BeWo cells generally represent an apt model for transporter studies, but their suitability should be confirmed for each transporter by comparison with PHT.
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Affiliation(s)
- Sampada Kallol
- Institute of Biochemistry and Molecular Medicine, University of Bern, Switzerland; Swiss National Centre of Competence in Research, NCCR TransCure, University of Bern, Switzerland
| | | | - Corneille Edgar Ontsouka
- Institute of Biochemistry and Molecular Medicine, University of Bern, Switzerland; Swiss National Centre of Competence in Research, NCCR TransCure, University of Bern, Switzerland
| | - Christiane Albrecht
- Institute of Biochemistry and Molecular Medicine, University of Bern, Switzerland; Swiss National Centre of Competence in Research, NCCR TransCure, University of Bern, Switzerland.
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36
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Afrouzian M, Al-Lahham R, Patrikeeva S, Xu M, Fokina V, Fischer WG, Abdel-Rahman SZ, Costantine M, Ahmed MS, Nanovskaya T. Role of the efflux transporters BCRP and MRP1 in human placental bio-disposition of pravastatin. Biochem Pharmacol 2018; 156:467-478. [PMID: 30217571 DOI: 10.1016/j.bcp.2018.09.012] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 09/10/2018] [Indexed: 12/11/2022]
Abstract
The expression and activity of human placental transporters during pregnancy could be altered by several factors including pathological changes associated with preeclampsia. The aims of this study were to identify the placental efflux transporters involved in the bio-disposition of pravastatin, determine the protein expression of these transporters and their encoding genes as well as the activity of pravastatin uptake in placentas obtained from patients with preeclampsia. ATP-dependent uptake of [3H]-pravastatin by trophoblast tissue apical and basal membrane vesicles exhibited sigmoidal kinetics. The curved shapes of Eadie-Hofstee plots indicate that more than one placental transporter are involved in the uptake of pravastatin. ATP-dependent uptake of [3H]-pravastatin into vesicles expressing MRP1-5, BCRP, and P-gp, as well as the results of inhibition studies suggest that BCRP and MRP1 are the major placental efflux transporters responsible for the in vitro uptake of pravastatin. Compared to placentas from healthy pregnancies, preeclamptic placentas had increased number of syncytial knots with increased expression of BCRP in their apical membrane and increased expression of MRP1 in the cytoplasm of the syncytiotrophoblast and in cytoplasm of syncytial knots. There was a concomitant increase in ABCC1 but not in ABCG2 gene expressions in preeclamptic placentas. ATP-dependent uptake of [3H]-pravastatin by vesicles prepared from apical membranes of preeclamptic placentas was similar to the uptake by vesicles prepared from placentas obtained after uncomplicated pregnancies (13.9 ± 6.5 vs 14.1 ± 5.8 pmol·mg protein-1 min-1). The transporter-specific changes in the expression of BCRP and MRP1 in preeclamptic placentas did not affect the efflux activity of transporters localized on the apical membrane of the syncytiotrophoblast.
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Affiliation(s)
- Marjan Afrouzian
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Rabab Al-Lahham
- Maternal-Fetal Pharmacology and Bio-Development Laboratories, Department of Obstetrics & Gynecology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Svetlana Patrikeeva
- Maternal-Fetal Pharmacology and Bio-Development Laboratories, Department of Obstetrics & Gynecology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Meixiang Xu
- Maternal-Fetal Pharmacology and Bio-Development Laboratories, Department of Obstetrics & Gynecology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Valentina Fokina
- Maternal-Fetal Pharmacology and Bio-Development Laboratories, Department of Obstetrics & Gynecology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Wayne G Fischer
- Department of Qulity Management & Patient Safety, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Sherif Z Abdel-Rahman
- Maternal-Fetal Pharmacology and Bio-Development Laboratories, Department of Obstetrics & Gynecology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Maged Costantine
- Maternal-Fetal Pharmacology and Bio-Development Laboratories, Department of Obstetrics & Gynecology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Mahmoud S Ahmed
- Maternal-Fetal Pharmacology and Bio-Development Laboratories, Department of Obstetrics & Gynecology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Tatiana Nanovskaya
- Maternal-Fetal Pharmacology and Bio-Development Laboratories, Department of Obstetrics & Gynecology, University of Texas Medical Branch, Galveston, TX 77555, USA.
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37
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Dunk CE, Pappas JJ, Lye P, Kibschull M, Javam M, Bloise E, Lye SJ, Szyf M, Matthews SG. P-Glycoprotein (P-gp)/ABCB1 plays a functional role in extravillous trophoblast (EVT) invasion and is decreased in the pre-eclamptic placenta. J Cell Mol Med 2018; 22:5378-5393. [PMID: 30256530 PMCID: PMC6201374 DOI: 10.1111/jcmm.13810] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 06/29/2018] [Indexed: 01/01/2023] Open
Abstract
Dysregulation of trophoblast differentiation is implicated in the placental pathologies of intrauterine growth restriction and pre‐eclampsia. P‐glycoprotein (P‐gp encoded by ABCB1) is an ATP‐binding cassette transporter present in the syncytiotrophoblast layer of the placenta where it acts as a molecular sieve. In this study, we show that P‐gp is also expressed in the proliferating cytotrophoblast (CT), the syncytiotrophoblast (ST) and the extravillous trophoblast (EVT), suggesting our hypothesis of a functional role for P‐gp in placental development. Silencing of ABCB1, via siRNA duplex, results in dramatically reduced invasion and migration, and increased tube formation and fusion in the EVT‐like HTR8/SVneo cell line. In both EVT and CT explant differentiation experiments, silencing of ABCB1 leads to induction of the fusion markers human hCG, ERVW‐1 and GJA1 and terminal differentiation of both trophoblast subtypes. Moreover, P‐gp protein levels are decreased in both the villous and the EVT of severe early‐onset pre‐eclamptic placentas. We conclude that, in addition to its role as a syncytial transporter, P‐gp is a key factor in the maintenance of both CT and EVT lineages and that its decrease in severe pre‐eclampsia may contribute to the syncytial and EVT placental pathologies associated with this disease.
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Affiliation(s)
- Caroline E Dunk
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, Canada
| | - Jane J Pappas
- Department of Pharmacology and Therapeutics, McGill University, Montreal, Canada.,Department of Physiology, University of Toronto, Toronto, Canada
| | - Phetcharawan Lye
- Department of Physiology, University of Toronto, Toronto, Canada
| | - Mark Kibschull
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, Canada
| | - Mohsen Javam
- Department of Physiology, University of Toronto, Toronto, Canada
| | - Enrrico Bloise
- Department of Physiology, University of Toronto, Toronto, Canada.,Department of Morphology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Stephen J Lye
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, Canada.,Department of Physiology, University of Toronto, Toronto, Canada.,Departments of Obstetrics and Gynecology and Medicine, University of Toronto, Toronto, Canada
| | - Moshe Szyf
- Department of Pharmacology and Therapeutics, McGill University, Montreal, Canada
| | - Stephen G Matthews
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, Canada.,Department of Physiology, University of Toronto, Toronto, Canada.,Departments of Obstetrics and Gynecology and Medicine, University of Toronto, Toronto, Canada
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38
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Xia Y, Dong Y, Zhao X, Di L, Li J. Transport mechanism of ursodeoxycholic acid in human placental BeWo cells. Biopharm Drug Dispos 2018; 39:335-343. [PMID: 29978488 DOI: 10.1002/bdd.2150] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Revised: 06/09/2018] [Accepted: 06/18/2018] [Indexed: 12/27/2022]
Abstract
Ursodeoxycholic acid (UDCA) is a first-line drug to treat intrahepatic cholestasis of pregnancy (ICP). However, its effects on the fetus are not clearly known. To better guide its clinical use, we aimed to study the mechanism underlying the placental transport of UDCA. The uptake and efflux of UDCA across placental apical membranes were studied using BeWo cells; effects of different exposure durations, UDCA concentrations, temperatures, and inhibitors of transporters were studied. A transwell assay was performed, and UDCA concentration in both fetal and maternal sides was measured using LC-MS/MS. Higher unidirectional transport of UDCA was observed in the basolateral-to-apical direction than in the apical-to-basolateral direction. Ko143 and verapamil, which are typical inhibitors of efflux transporters, significantly increased UDCA transport from different directions. UDCA uptake from the apical membrane of BeWo cells was time-dependent, but sodium-independent. It was inhibited by inhibitors of energy metabolism and of organic anion transporters, indicating an active transport mechanism. UDCA uptake from the apical membranes of BeWo cells could be mediated by organic anion-transporting polypeptides, whereas its efflux could be mediated by breast cancer resistance protein and multidrug resistant protein 3. The results of the present study may provide a basis for UDCA use in pregnancy.
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Affiliation(s)
- Yanming Xia
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Ying Dong
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xiaoli Zhao
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Provincial TCM Engineering Technology Research Center of High Efficient Drug Delivery System (DDS), Nanjing, China
| | - Liuqing Di
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Provincial TCM Engineering Technology Research Center of High Efficient Drug Delivery System (DDS), Nanjing, China
| | - Junsong Li
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Provincial TCM Engineering Technology Research Center of High Efficient Drug Delivery System (DDS), Nanjing, China
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39
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Kallol S, Huang X, Müller S, Ontsouka CE, Albrecht C. Novel Insights into Concepts and Directionality of Maternal⁻Fetal Cholesterol Transfer across the Human Placenta. Int J Mol Sci 2018; 19:ijms19082334. [PMID: 30096856 PMCID: PMC6121295 DOI: 10.3390/ijms19082334] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 07/14/2018] [Accepted: 07/23/2018] [Indexed: 12/19/2022] Open
Abstract
Cholesterol is indispensable for cellular membrane composition and function. It is also a precursor for the synthesis of steroid hormones, which promote, among others, the maturation of fetal organs. A role of the ATP-binding-cassette-transporter-A1 (ABCA1) in the transport of maternal cholesterol to the fetus was suggested by transferring cholesterol to apolipoprotein-A-1 (apo-A1), but the directionality of the apoA-1/ABCA1-dependent cholesterol transport remains unclear. We isolated primary trophoblasts from term placentae to test the hypotheses that (1) apoA-1/ABCA1 dispatches cholesterol mainly towards the fetus to support fetal developmental maturation at term, and (2) differentiated syncytiotrophoblasts (STB) exert higher cholesterol transport activity than undifferentiated cytotrophoblasts (CTB). As experimental models, we used (1) trophoblast monolayers grown on Transwell® system consisting of apical (maternal-like) and basal (fetal-like) compartments, and (2) trophoblasts grown on conventional culture plates at CTB and STB stages. Surprisingly, apoA-1-mediated cholesterol efflux operated almost exclusively at the apical-maternal side, where ABCA1 was also localized by immunofluorescence. We found greater cholesterol efflux capacity in STB, which was increased by liver-X-receptor agonist treatment and decreased by ABCA1 inhibition. We conclude that at term the apoA-1/ABCA1 pathway is rather involved in cholesterol transport to the mother than in transfer to the fully developed fetus.
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Affiliation(s)
- Sampada Kallol
- Institute of Biochemistry and Molecular Medicine, Faculty of Medicine, University of Bern, CH-3012 Bern, Switzerland.
| | - Xiao Huang
- Institute of Biochemistry and Molecular Medicine, Faculty of Medicine, University of Bern, CH-3012 Bern, Switzerland.
- Swiss National Center of Competence in Research, NCCR TransCure, University of Bern, CH-3012 Bern, Switzerland.
| | - Stefan Müller
- Department of BioMedical Research, University of Bern, CH-3012 Bern, Switzerland.
| | - Corneille Edgar Ontsouka
- Institute of Biochemistry and Molecular Medicine, Faculty of Medicine, University of Bern, CH-3012 Bern, Switzerland.
| | - Christiane Albrecht
- Institute of Biochemistry and Molecular Medicine, Faculty of Medicine, University of Bern, CH-3012 Bern, Switzerland.
- Swiss National Center of Competence in Research, NCCR TransCure, University of Bern, CH-3012 Bern, Switzerland.
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40
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Lye P, Bloise E, Nadeem L, Gibb W, Lye SJ, Matthews SG. Glucocorticoids modulate multidrug resistance transporters in the first trimester human placenta. J Cell Mol Med 2018; 22:3652-3660. [PMID: 29691980 PMCID: PMC6010777 DOI: 10.1111/jcmm.13646] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 03/16/2018] [Indexed: 12/17/2022] Open
Abstract
The placental multidrug transporters, P‐glycoprotein (P‐gp, encoded by ABCB1) and breast cancer resistance protein (BCRP,ABCG2) protect the foetus from exposure to maternally derived glucocorticoids, toxins and xenobiotics. During pregnancy, maternal glucocorticoid levels can be elevated by stress or exogenous administration. We hypothesized that glucocorticoids modulate the expression of ABCB1/P‐gp and ABCG2/BCRP in the first trimester human placenta. Our objective was to examine whether dexamethasone (DEX) or cortisol modulate first trimester placental expression of multidrug transporters and determine whether cytotrophoblasts or the syncytiotrophoblast are/is responsible for mediating these effects. Three models were examined: (i) an ex‐vivo model of placental villous explants (7‐10 weeks), (ii) a model of isolated first trimester syncytiotrophoblast and cytotrophoblast cells and (iii) the BeWo immortalized trophoblast cell line model. These cells/tissues were treated with DEX or cortisol for 24 hour to 72 hour. In first trimester placental explants, DEX (48 hour) increased ABCB1 (P < .001) and ABCG2 (P < .05) mRNA levels, whereas cortisol (48 hour) only increased ABCB1 mRNA levels (P < .01). Dexamethasone (P < .05) and cortisol (P < .01) increased BCRP but did not affect P‐gp protein levels. Breast cancer resistance protein expression was primarily confined to syncytiotrophoblasts. BeWo cells, when syncytialized with forskolin, increased expression of BCRP protein, and this was further augmented by DEX (P < .05). Our data suggest that the protective barrier provided by BCRP increases as cytotrophoblasts fuse to form the syncytiotrophoblast. Increase in glucocorticoid levels during the first trimester may reduce embryo/foetal exposure to clinically relevant BCRP substrates, because of an increase in placental BCRP.
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Affiliation(s)
- Phetcharawan Lye
- Department of Physiology, University of Toronto, Toronto, ON, Canada
| | - Enrrico Bloise
- Department of Physiology, University of Toronto, Toronto, ON, Canada.,Department of Morphology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Lubna Nadeem
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - William Gibb
- Department of Obstetrics & Gynaecology, University of Ottawa, Ottawa, ON, Canada.,Department of Cellular & Molecular Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Stephen J Lye
- Department of Physiology, University of Toronto, Toronto, ON, Canada.,Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada.,Department of Obstetrics & Gynaecology, University of Toronto, Toronto, ON, Canada.,Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Stephen G Matthews
- Department of Physiology, University of Toronto, Toronto, ON, Canada.,Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada.,Department of Obstetrics & Gynaecology, University of Toronto, Toronto, ON, Canada.,Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
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41
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Kliman HJ, Quaratella SB, Setaro AC, Siegman EC, Subha ZT, Tal R, Milano KM, Steck TL. Pathway of Maternal Serotonin to the Human Embryo and Fetus. Endocrinology 2018; 159:1609-1629. [PMID: 29381782 DOI: 10.1210/en.2017-03025] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 12/22/2017] [Indexed: 12/16/2022]
Abstract
Serotonin [5-hydroxytryptamine (5-HT)] is essential to intrauterine development, but its source is debated. We used immunocytochemistry to gauge 5-HT, its biosynthetic enzyme tryptophan hydroxylase 1 (TPH1); an importer (serotonin transporter, 5-HTT/SERT/SLC6A); other transporters [P-glycoprotein 1 (P-gp/ABCB1), OCT3/SLC22A3, and gap junction connexin-43]; and the 5-HT degradative enzyme monoamine oxidase A (MAOA) in sections of placentas. In humans, 5-HT was faintly stained only in first-trimester trophoblasts, whereas TPH1 was not seen at any stage. SERT was expressed in syncytiotrophoblasts and, more strongly, in cytotrophoblasts. MAOA was prominent in syncytiotrophoblasts, OCT3 and gap junctions were stained in cytotrophoblasts, and P-gp was present at the apical surfaces of both epithelia. 5-HT added to cultured placental explants accumulated in the trophoblast epithelium and reached the villus core vessels. Trophoblast uptake was blocked by the SERT inhibitor escitalopram. Inhibition of gap junctions with heptanol prevented the accumulation of 5-HT in cytotrophoblasts, whereas blocking OCT3 with decynium-22 and P-gp with mitotane led to its accumulation in cytotrophoblasts. Reducing 5-HT destruction by inhibiting MAOA with clorgyline increased the accumulation of 5-HT throughout the villus. In the mouse fetus, intravascular platelets stained prominently for 5-HT at day 13.5, whereas the placenta and yolk sac endoderm were both negative. TPH1 was not detected, but SERT was prominent in these mouse tissues. We conclude that serotonin is conveyed from the maternal blood stream through syncytiotrophoblasts, cytotrophoblasts and the villus core to the fetus through a physiological pathway that involves at least SERT, gap junctions, P-gp, OCT3, and MAOA.
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Affiliation(s)
- Harvey J Kliman
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut
| | | | | | | | | | - Reshef Tal
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut
| | - Kristin M Milano
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut
| | - Theodore L Steck
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, Illinois
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42
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Aengenheister L, Keevend K, Muoth C, Schönenberger R, Diener L, Wick P, Buerki-Thurnherr T. An advanced human in vitro co-culture model for translocation studies across the placental barrier. Sci Rep 2018; 8:5388. [PMID: 29599470 PMCID: PMC5876397 DOI: 10.1038/s41598-018-23410-6] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 03/12/2018] [Indexed: 01/10/2023] Open
Abstract
Although various drugs, environmental pollutants and nanoparticles (NP) can cross the human placental barrier and may harm the developing fetus, knowledge on predictive placental transfer rates and the underlying transport pathways is mostly lacking. Current available in vitro placental transfer models are often inappropriate for translocation studies of macromolecules or NPs and do not consider barrier function of placental endothelial cells (EC). Therefore, we developed a human placental in vitro co-culture transfer model with tight layers of trophoblasts (BeWo b30) and placental microvascular ECs (HPEC-A2) on a low-absorbing, 3 µm porous membrane. Translocation studies with four model substances and two polystyrene (PS) NPs across the individual and co-culture layers revealed that for most of these compounds, the trophoblast and the EC layer both demonstrate similar, but not additive, retention capacity. Only the paracellular marker Na-F was substantially more retained by the BeWo layer. Furthermore, simple shaking, which is often applied to mimic placental perfusion, did not alter translocation kinetics compared to static exposure. In conclusion, we developed a novel placental co-culture model, which provides predictive values for translocation of a broad variety of molecules and NPs and enables valuable mechanistic investigations on cell type-specific placental barrier function.
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Affiliation(s)
- Leonie Aengenheister
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Kerda Keevend
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Carina Muoth
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - René Schönenberger
- UTOX, EAWAG, Swiss Federal Institute of Aquatic Science and Technology, Ueberlandstrasse 133, 8600, Dübendorf, Switzerland
| | - Liliane Diener
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Peter Wick
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Tina Buerki-Thurnherr
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland.
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43
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Al-Enazy S, Ali S, Albekairi N, El-Tawil M, Rytting E. Placental control of drug delivery. Adv Drug Deliv Rev 2017; 116:63-72. [PMID: 27527665 DOI: 10.1016/j.addr.2016.08.002] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 07/25/2016] [Accepted: 08/04/2016] [Indexed: 01/04/2023]
Abstract
The placenta serves as the interface between the maternal and fetal circulations and regulates the transfer of oxygen, nutrients, and waste products. When exogenous substances are present in the maternal bloodstream-whether from environmental contact, occupational exposure, medication, or drug abuse-the extent to which this exposure affects the fetus is determined by transport and biotransformation processes in the placental barrier. Advances in drug delivery strategies are expected to improve the treatment of maternal and fetal diseases encountered during pregnancy.
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Xu H, Medina S, Lauer FT, Douillet C, Liu KJ, Hudson LG, Stýblo M, Aleksunes LM, Burchiel SW. Efflux Transporters Regulate Arsenite-Induced Genotoxicity in Double Negative and Double Positive T Cells. Toxicol Sci 2017; 158:127-139. [PMID: 28472378 PMCID: PMC6257016 DOI: 10.1093/toxsci/kfx075] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Arsenite (As+3) exposure is known to cause immunotoxicity in human and animal models. Our previous studies demonstrated that As+3 at 50-500 nM concentrations induced both genotoxicity and nongenotoxicity in mouse thymus cells. Developing T cells at CD4-CD8- double negative (DN) stage, the first stage after early T cells are transported from bone marrow to thymus, were found to be more sensitive to As+3 toxicity than the T cells at CD4 + CD8 + double positive (DP) stage in vitro. Induction of Mdr1 (Abcb1) and Mrp1 (Abcc1), 2 multidrug resistance transporters and exporters of As+3, was associated with the reversal of As+3-induced double strand breaks and DNA damage. In order to confirm that the thymus cell populations have different sensitivity to As+3in vivo, male C57BL/6J mice were exposed to 0, 100, and 500 ppb As+3 in drinking water for 30 d. A significant decrease in DN cell percentage was observed with exposure to 500 ppb As+3. Low to moderate concentrations of As+3 were shown to induce higher genotoxicity in sorted DN than DP cells in vitro. Calcein AM uptake and Mdr1/Mrp1 mRNA quantification results revealed that DN cells not only had limited As+3 exporter activity, but also lacked the ability to activate these exporters with As+3 treatments, resulting in a higher accumulation of intracellular As+3. Knockdown study of As+3 exporters in the DN thymic cell line, D1 using siRNA, demonstrated that Mdr1 and Mrp1 regulate intracellular As+3 accumulation and genotoxicity. Taken together, the results indicate that transporter regulation is an important mechanism for differential genotoxicity induced by As+3 in thymocytes at different developmental stages.
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Affiliation(s)
- Huan Xu
- Department of Pharmaceutical Sciences, The University of New Mexico College of Pharmacy, Albuquerque, New Mexico 87131
| | - Sebastian Medina
- Department of Pharmaceutical Sciences, The University of New Mexico College of Pharmacy, Albuquerque, New Mexico 87131
| | - Fredine T. Lauer
- Department of Pharmaceutical Sciences, The University of New Mexico College of Pharmacy, Albuquerque, New Mexico 87131
| | - Christelle Douillet
- Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27516
| | - Ke Jian Liu
- Department of Pharmaceutical Sciences, The University of New Mexico College of Pharmacy, Albuquerque, New Mexico 87131
| | - Laurie G. Hudson
- Department of Pharmaceutical Sciences, The University of New Mexico College of Pharmacy, Albuquerque, New Mexico 87131
| | - Miroslav Stýblo
- Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27516
| | - Lauren M. Aleksunes
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854
| | - Scott W. Burchiel
- Department of Pharmaceutical Sciences, The University of New Mexico College of Pharmacy, Albuquerque, New Mexico 87131
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45
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Multiple drug transporters mediate the placental transport of sulpiride. Arch Toxicol 2017; 91:3873-3884. [DOI: 10.1007/s00204-017-2008-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 06/01/2017] [Indexed: 01/15/2023]
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Walker N, Filis P, Soffientini U, Bellingham M, O’Shaughnessy PJ, Fowler PA. Placental transporter localization and expression in the Human: the importance of species, sex, and gestational age differences†. Biol Reprod 2017; 96:733-742. [PMID: 28339967 PMCID: PMC5441296 DOI: 10.1093/biolre/iox012] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 02/22/2017] [Accepted: 03/03/2017] [Indexed: 12/11/2022] Open
Abstract
The placenta is a critical organ during pregnancy, essential for the provision of an optimal intrauterine environment, with fetal survival, growth, and development relying on correct placental function. It must allow nutritional compounds and relevant hormones to pass into the fetal bloodstream and metabolic waste products to be cleared. It also acts as a semipermeable barrier to potentially harmful chemicals, both endogenous and exogenous. Transporter proteins allow for bidirectional transport and are found in the syncytiotrophoblast of the placenta and endothelium of fetal capillaries. The major transporter families in the human placenta are ATP-binding cassette (ABC) and solute carrier (SLC), and insufficiency of these transporters may lead to deleterious effects on the fetus. Transporter expression levels are gestation-dependent and this is of considerable clinical interest as levels of drug resistance may be altered from one trimester to the next. This highlights the importance of these transporters in mediating correct and timely transplacental passage of essential compounds but also for efflux of potentially toxic drugs and xenobiotics. We review the current literature on placental molecular transporters with respect to their localization and ontogeny, the influence of fetal sex, and the relevance of animal models. We conclude that a paucity of information exists, and further studies are required to unlock the enigma of this dynamic organ.
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Affiliation(s)
- Natasha Walker
- Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK
| | - Panagiotis Filis
- Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK
| | - Ugo Soffientini
- Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Michelle Bellingham
- Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Peter J O’Shaughnessy
- Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Paul A Fowler
- Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK
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47
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Neradugomma NK, Liao MZ, Mao Q. Buprenorphine, Norbuprenorphine, R-Methadone, and S-Methadone Upregulate BCRP/ABCG2 Expression by Activating Aryl Hydrocarbon Receptor in Human Placental Trophoblasts. Mol Pharmacol 2016; 91:237-249. [PMID: 27974484 DOI: 10.1124/mol.116.107367] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 12/13/2016] [Indexed: 12/24/2022] Open
Abstract
Opioid dependence during pregnancy is a rising concern. Maintaining addicted pregnant women on long-acting opioid receptor agonist is the most common strategy to manage drug abuse in pregnant women. Methadone (MET) and buprenorphine (BUP) are widely prescribed for opiate maintenance therapy. Norbuprenorphine (NBUP) is the primary active metabolite of BUP. These medications can cross the placenta to the fetus, leading to postpartum neonatal abstinence syndrome. Despite their use during pregnancy, little is known about the cellular changes in the placenta brought about by these drugs. In this study, we showed that BUP, NBUP, and MET at clinically relevant plasma concentrations significantly induced BCRP mRNA up to 10-fold in human model placental JEG3 and BeWo cells and in primary human villous trophoblasts, and this induction was abrogated by CH223191, an aryl hydrocarbon receptor (AhR)-specific antagonist. These drugs increased AhR recruitment onto the AhR-response elements and significantly induced breast cancer resistance protein (BCRP) gene transcription. AhR overexpression further increased BCRP mRNA and protein expression. Knockdown of AhR by shRNA decreased BCRP expression, and this decrease was reversed by rescuing AhR expression. Finally, induction of BCRP expression in JEG3 and BeWo cells was accompanied by an increase in its efflux activity. Collectively, we have demonstrated, for the first time, that BUP, NBUP, and MET are potent AhR agonists and can induce BCRP in human placental trophoblasts by activating AhR. Given the critical role of BCRP in limiting fetal exposure to drugs and xenobiotics, long-term use of these medications may affect fetal drug exposure by altering BCRP expression in human placenta.
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Affiliation(s)
- Naveen K Neradugomma
- Department of Pharmaceutics, School of Pharmacy, University of Washington, Seattle, Washington
| | - Michael Z Liao
- Department of Pharmaceutics, School of Pharmacy, University of Washington, Seattle, Washington
| | - Qingcheng Mao
- Department of Pharmaceutics, School of Pharmacy, University of Washington, Seattle, Washington
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48
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Lin Y, Bircsak KM, Gorczyca L, Wen X, Aleksunes LM. Regulation of the placental BCRP transporter by PPAR gamma. J Biochem Mol Toxicol 2016; 31. [PMID: 27879033 DOI: 10.1002/jbt.21880] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 10/13/2016] [Accepted: 10/20/2016] [Indexed: 12/27/2022]
Abstract
Identifying regulators of placental breast cancer resistance protein (BCRP) expression is critical as downregulation of this transporter may increase exposure of the fetus to xenobiotics. Here, we sought to test whether the nuclear receptor peroxisome proliferator-activated receptor γ (PPARγ) regulates BCRP expression in the placenta. To test this, human BeWo placental choriocarcinoma cells were cultured with the PPARγ agonist rosiglitazone or the PPARγ antagonist T0070907 for 24 h. Messenger RNA (mRNA) expression of syncytialization markers, GCM1 and hCGβ, as well as BCRP increased with PPARγ agonist treatment. Conversely, BCRP mRNA and protein expression decreased 30%-50% with PPARγ antagonist treatment. Rosiglitazone enhanced BCRP protein expression and transport activity, resulting in a 20% greater efflux of the substrate Hoechst 33342 compared with control cells. These results suggest that PPARγ can upregulate BCRP expression in the placenta, which may be important in understanding mechanisms that protect the fetus from xenobiotic exposure during development.
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Affiliation(s)
- Yixin Lin
- Rutgers University Ernest Mario School of Pharmacy, Department of Pharmacology and Toxicology, Piscataway, NJ, 08854, USA
| | - Kristin M Bircsak
- Rutgers University Ernest Mario School of Pharmacy, Department of Pharmacology and Toxicology, Piscataway, NJ, 08854, USA
| | - Ludwik Gorczyca
- Rutgers University Ernest Mario School of Pharmacy, Department of Pharmacology and Toxicology, Piscataway, NJ, 08854, USA
| | - Xia Wen
- Rutgers University Ernest Mario School of Pharmacy, Department of Pharmacology and Toxicology, Piscataway, NJ, 08854, USA
| | - Lauren M Aleksunes
- Rutgers University Ernest Mario School of Pharmacy, Department of Pharmacology and Toxicology, Piscataway, NJ, 08854, USA.,Environmental and Occupational Health Sciences Institute, Piscataway, NJ, 08854, USA
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Muoth C, Wichser A, Monopoli M, Correia M, Ehrlich N, Loeschner K, Gallud A, Kucki M, Diener L, Manser P, Jochum W, Wick P, Buerki-Thurnherr T. A 3D co-culture microtissue model of the human placenta for nanotoxicity assessment. NANOSCALE 2016; 8:17322-17332. [PMID: 27714104 DOI: 10.1039/c6nr06749b] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
There is increasing evidence that certain nanoparticles (NPs) can overcome the placental barrier, raising concerns on potential adverse effects on the growing fetus. But even in the absence of placental transfer, NPs may pose a risk to proper fetal development if they interfere with the viability and functionality of the placental tissue. The effects of NPs on the human placenta are not well studied or understood, and predictive in vitro placenta models to achieve mechanistic insights on NP-placenta interactions are essentially lacking. Using the scaffold-free hanging drop technology, we developed a well-organized and highly reproducible 3D co-culture microtissue (MT) model consisting of a core of placental fibroblasts surrounded by a trophoblast cell layer, which resembles the structure of the in vivo placental tissue. We could show that secretion levels of human chorionic gonadotropin (hCG) were significantly higher in 3D than in 2D cell cultures, which indicates an enhanced differentiation of trophoblasts grown on 3D MTs. NP toxicity assessment revealed that cadmium telluride (CdTe) and copper oxide (CuO) NPs but not titanium dioxide (TiO2) NPs decreased MT viability and reduced the release of hCG. NP acute toxicity was significantly reduced in 3D co-culture MTs compared to 2D monocultures. Taken together, 3D placental MTs provide a new and promising model for the fast generation of tissue-relevant acute NP toxicity data, which are indispensable for the safe development of NPs for industrial, commercial and medical applications.
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Affiliation(s)
- Carina Muoth
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.
| | - Adrian Wichser
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.
| | - Marco Monopoli
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Dublin 4, Ireland
| | - Manuel Correia
- Research Group for Nano-Bio Science, Division for Food Technology, National Food Institute, Technical University of Denmark, Mørkhøj Bygade 19, DK-2860 Søborg, Denmark
| | - Nicky Ehrlich
- Research Group for Nano-Bio Science, Division for Food Technology, National Food Institute, Technical University of Denmark, Mørkhøj Bygade 19, DK-2860 Søborg, Denmark
| | - Katrin Loeschner
- Research Group for Nano-Bio Science, Division for Food Technology, National Food Institute, Technical University of Denmark, Mørkhøj Bygade 19, DK-2860 Søborg, Denmark
| | - Audrey Gallud
- Division of Molecular Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Nobels väg 13, 171 77 Stockholm, Sweden
| | - Melanie Kucki
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.
| | - Liliane Diener
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.
| | - Pius Manser
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.
| | - Wolfram Jochum
- Institute of Pathology, Cantonal Hospital St. Gallen, Rorschacherstrasse 95, 9007 St. Gallen, Switzerland
| | - Peter Wick
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.
| | - Tina Buerki-Thurnherr
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.
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50
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Joshi AA, Vaidya SS, St-Pierre MV, Mikheev AM, Desino KE, Nyandege AN, Audus KL, Unadkat JD, Gerk PM. Placental ABC Transporters: Biological Impact and Pharmaceutical Significance. Pharm Res 2016; 33:2847-2878. [PMID: 27644937 DOI: 10.1007/s11095-016-2028-8] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 08/23/2016] [Indexed: 01/02/2023]
Abstract
The human placenta fulfills a variety of essential functions during prenatal life. Several ABC transporters are expressed in the human placenta, where they play a role in the transport of endogenous compounds and may protect the fetus from exogenous compounds such as therapeutic agents, drugs of abuse, and other xenobiotics. To date, considerable progress has been made toward understanding ABC transporters in the placenta. Recent studies on the expression and functional activities are discussed. This review discusses the placental expression and functional roles of several members of ABC transporter subfamilies B, C, and G including MDR1/P-glycoprotein, the MRPs, and BCRP, respectively. Since placental ABC transporters modulate fetal exposure to various compounds, an understanding of their functional and regulatory mechanisms will lead to more optimal medication use when necessary in pregnancy.
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Affiliation(s)
- Anand A Joshi
- Department of Pharmaceutics, Virginia Commonwealth University School of Pharmacy, Richmond, Virginia, 23298-0533, USA
| | - Soniya S Vaidya
- Department of Pharmaceutics, Virginia Commonwealth University School of Pharmacy, Richmond, Virginia, 23298-0533, USA
- Novartis Institutes of Biomedical Research, Cambridge, Massachusetts, USA
| | - Marie V St-Pierre
- Department of Clinical Pharmacology and Toxicology, University of Zurich Hospital, Zurich, Switzerland
| | - Andrei M Mikheev
- Department of Pharmaceutics, University of Washington School of Pharmacy, Seattle, Washington, USA
- Department of Neurosurgery, Institute of Stem Cell and Regenerative Medicine, University of Washington School of Medicine, Seattle, Washington, 98109, USA
| | - Kelly E Desino
- Department of Pharmaceutical Chemistry, University of Kansas School of Pharmacy, Lawrence, Kansas, USA
- Abbvie Inc, North Chicago, Illinois, USA
| | - Abner N Nyandege
- Department of Pharmaceutics, Virginia Commonwealth University School of Pharmacy, Richmond, Virginia, 23298-0533, USA
| | - Kenneth L Audus
- Department of Pharmaceutical Chemistry, University of Kansas School of Pharmacy, Lawrence, Kansas, USA
| | - Jashvant D Unadkat
- Department of Pharmaceutics, University of Washington School of Pharmacy, Seattle, Washington, USA
| | - Phillip M Gerk
- Department of Pharmaceutics, Virginia Commonwealth University School of Pharmacy, Richmond, Virginia, 23298-0533, USA.
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