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Loeffler DA. Enhancing of cerebral Abeta clearance by modulation of ABC transporter expression: a review of experimental approaches. Front Aging Neurosci 2024; 16:1368200. [PMID: 38872626 PMCID: PMC11170721 DOI: 10.3389/fnagi.2024.1368200] [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: 01/10/2024] [Accepted: 05/01/2024] [Indexed: 06/15/2024] Open
Abstract
Clearance of amyloid-beta (Aβ) from the brain is impaired in both early-onset and late-onset Alzheimer's disease (AD). Mechanisms for clearing cerebral Aβ include proteolytic degradation, antibody-mediated clearance, blood brain barrier and blood cerebrospinal fluid barrier efflux, glymphatic drainage, and perivascular drainage. ATP-binding cassette (ABC) transporters are membrane efflux pumps driven by ATP hydrolysis. Their functions include maintenance of brain homeostasis by removing toxic peptides and compounds, and transport of bioactive molecules including cholesterol. Some ABC transporters contribute to lowering of cerebral Aβ. Mechanisms suggested for ABC transporter-mediated lowering of brain Aβ, in addition to exporting of Aβ across the blood brain and blood cerebrospinal fluid barriers, include apolipoprotein E lipidation, microglial activation, decreased amyloidogenic processing of amyloid precursor protein, and restricting the entrance of Aβ into the brain. The ABC transporter superfamily in humans includes 49 proteins, eight of which have been suggested to reduce cerebral Aβ levels. This review discusses experimental approaches for increasing the expression of these ABC transporters, clinical applications of these approaches, changes in the expression and/or activity of these transporters in AD and transgenic mouse models of AD, and findings in the few clinical trials which have examined the effects of these approaches in patients with AD or mild cognitive impairment. The possibility that therapeutic upregulation of ABC transporters which promote clearance of cerebral Aβ may slow the clinical progression of AD merits further consideration.
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Affiliation(s)
- David A. Loeffler
- Department of Neurology, Beaumont Research Institute, Corewell Health, Royal Oak, MI, United States
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2
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Szatmári P, Ducza E. Changes in Expression and Function of Placental and Intestinal P-gp and BCRP Transporters during Pregnancy. Int J Mol Sci 2023; 24:13089. [PMID: 37685897 PMCID: PMC10487423 DOI: 10.3390/ijms241713089] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/11/2023] [Accepted: 08/21/2023] [Indexed: 09/10/2023] Open
Abstract
ABC transporters are ubiquitous in the human body and are responsible for the efflux of drugs. They are present in the placenta, intestine, liver and kidney, which are the major organs that can affect the pharmacokinetic and pharmacologic properties of drugs. P-gp and BCRP transporters are the best-characterized transporters in the ABC superfamily, and they have a pivotal role in the barrier tissues due to their efflux mechanism. Moreover, during pregnancy, drug efflux is even more important because of the developing fetus. Recent studies have shown that placental and intestinal ABC transporters have great importance in drug absorption and distribution. Placental and intestinal P-gp and BCRP show gestational-age-dependent expression changes, which determine the drug concentration both in the mother and the fetus during pregnancy. They may have an impact on the efficacy of antibiotic, antiviral, antihistamine, antiemetic and oral antidiabetic therapies. In this review, we would like to provide an overview of the pharmacokinetically relevant expression alterations of placental and intestinal ABC transporters during pregnancy.
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Affiliation(s)
| | - Eszter Ducza
- Department of Pharmacodynamics and Biopharmacy, Faculty of Pharmacy, University of Szeged, H-6720 Szeged, Hungary;
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Sałagacka-Kubiak A, Zawada D, Saed L, Kordek R, Jeleń A, Balcerczak E. ABCG2 Gene and ABCG2 Protein Expression in Colorectal Cancer-In Silico and Wet Analysis. Int J Mol Sci 2023; 24:10539. [PMID: 37445716 DOI: 10.3390/ijms241310539] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/13/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023] Open
Abstract
ABCG2 (ATP-binding cassette superfamily G member 2) is a cell membrane pump encoded by the ABCG2 gene. ABCG2 can protect cells against compounds initiating and/or intensifying neoplasia and is considered a marker of stem cells responsible for cancer growth, drug resistance and recurrence. Expression of the ABCG2 gene or its protein has been shown to be a negative prognostic factor in various malignancies. However, its prognostic significance in colorectal cancer remains unclear. Using publicly available data, ABCG2 was shown to be underexpressed in colon and rectum adenocarcinomas, with lower expression compared to both the adjacent nonmalignant lung tissues and non-tumour lung tissues of healthy individuals. This downregulation could result from the methylation level of some sites of the ABCG2 gene. This was connected with microsatellite instability, weight and age among patients with colon adenocarcinoma, and with tumour localization, population type and age of patients for rectum adenocarcinoma. No association was found between ABCG2 expression level and survival of colorectal cancer patients. In wet analysis of colorectal cancer samples, neither ABCG2 gene expression, analysed by RT-PCR, nor ABCG2 protein level, assessed by immunohistochemistry, was associated with any clinicopathological factors or overall survival. An ABCG2-centered protein-protein interaction network build by STRING showed proteins were found to be involved in leukotriene, organic anion and xenobiotic transport, endodermal cell fate specification, and histone methylation and ubiquitination. Hence, ABCG2 underexpression could be an indicator of the activity of certain signalling pathways or protein interactors essential for colorectal carcinogenesis.
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Affiliation(s)
- Aleksandra Sałagacka-Kubiak
- Department of Pharmaceutical Biochemistry and Molecular Diagnostics, Medical University of Lodz, 92-213 Lodz, Poland
| | - Dawid Zawada
- Department of Pharmaceutical Biochemistry and Molecular Diagnostics, Medical University of Lodz, 92-213 Lodz, Poland
| | - Lias Saed
- Department of Pharmaceutical Biochemistry and Molecular Diagnostics, Medical University of Lodz, 92-213 Lodz, Poland
| | - Radzisław Kordek
- Department of Pathology, Medical University of Lodz, 92-213 Lodz, Poland
| | - Agnieszka Jeleń
- Department of Pharmaceutical Biochemistry and Molecular Diagnostics, Medical University of Lodz, 92-213 Lodz, Poland
| | - Ewa Balcerczak
- Department of Pharmaceutical Biochemistry and Molecular Diagnostics, Medical University of Lodz, 92-213 Lodz, Poland
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Wang X, Hong M. Protein Kinases and Cross-talk between Post-translational Modifications in the Regulation of Drug Transporters. Mol Pharmacol 2023; 103:9-20. [PMID: 36302660 DOI: 10.1124/molpharm.122.000604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/13/2022] [Accepted: 10/03/2022] [Indexed: 02/03/2023] Open
Abstract
Drug transporters are modulators for drug absorption, distribution, and excretion. Key drug transporters including P-glycoprotein and breast cancer resistance protein of the ABC superfamily; organic anion transporting polypeptide 1B1 and 1B3, organic anion transporter 1 and 3, and organic cation transporter 2, as well as multidrug and toxin extrusion 1 and 2 of the SLC superfamily have been recommended by regulatory agencies to be investigated and evaluated in drug-drug interaction (DDI) studies due to their important roles in determining the efficacy, toxicity and DDI of various drugs. Drug transporters are subjected to multiple levels of control and post-translational modifications (PTMs) provide rapid and versatile ways of regulation. Under pathologic and/or pharmacological conditions, PTMs may be altered in the cellular system, leading to functional changes of transporter proteins. Phosphorylation is by far the most actively investigated form of PTMs in the regulation of transporters. Further, studies in recent years also found that protein kinases coordinate with other PTMs for the dynamic control of these membrane proteins. Here we summarized the regulation of major drug transporters by protein kinases and their cross-talking with other PTMs that may generate a complex regulatory network for fine-tuning the function of these important drug processing modulators. SIGNIFICANCE STATEMENT: Kinases regulate drug transporters in versatile manners; Kinase regulation cross-talks with other PTMs, forming a complex network for transporter regulation; Pathological and/or pharmacological conditions may alter PTMs and affect transporter function with different molecular mechanisms.
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Affiliation(s)
- Xuyang Wang
- College of Life Sciences, South China Agricultural University, Guangzhou, China (X.W. and M.H.), and Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, South China Agricultural University, Guangzhou, China (M.H.)
| | - Mei Hong
- College of Life Sciences, South China Agricultural University, Guangzhou, China (X.W. and M.H.), and Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, South China Agricultural University, Guangzhou, China (M.H.)
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Pačínková A, Popovici V. Using empirical biological knowledge to infer regulatory networks from multi-omics data. BMC Bioinformatics 2022; 23:351. [PMID: 35996085 PMCID: PMC9396869 DOI: 10.1186/s12859-022-04891-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 08/08/2022] [Indexed: 12/13/2022] Open
Abstract
Background Integration of multi-omics data can provide a more complex view of the biological system consisting of different interconnected molecular components, the crucial aspect for developing novel personalised therapeutic strategies for complex diseases. Various tools have been developed to integrate multi-omics data. However, an efficient multi-omics framework for regulatory network inference at the genome level that incorporates prior knowledge is still to emerge. Results We present IntOMICS, an efficient integrative framework based on Bayesian networks. IntOMICS systematically analyses gene expression, DNA methylation, copy number variation and biological prior knowledge to infer regulatory networks. IntOMICS complements the missing biological prior knowledge by so-called empirical biological knowledge, estimated from the available experimental data. Regulatory networks derived from IntOMICS provide deeper insights into the complex flow of genetic information on top of the increasing accuracy trend compared to a published algorithm designed exclusively for gene expression data. The ability to capture relevant crosstalks between multi-omics modalities is verified using known associations in microsatellite stable/instable colon cancer samples. Additionally, IntOMICS performance is compared with two algorithms for multi-omics regulatory network inference that can also incorporate prior knowledge in the inference framework. IntOMICS is also applied to detect potential predictive biomarkers in microsatellite stable stage III colon cancer samples. Conclusions We provide IntOMICS, a framework for multi-omics data integration using a novel approach to biological knowledge discovery. IntOMICS is a powerful resource for exploratory systems biology and can provide valuable insights into the complex mechanisms of biological processes that have a vital role in personalised medicine. Supplementary Information The online version contains supplementary material available at 10.1186/s12859-022-04891-9.
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Affiliation(s)
- Anna Pačínková
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic. .,Faculty of Informatics, Masaryk University, Botanicka 68a, Brno, Czech Republic.
| | - Vlad Popovici
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
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Taggi V, Riera Romo M, Piquette-Miller M, Meyer zu Schwabedissen HE, Neuhoff S. Transporter Regulation in Critical Protective Barriers: Focus on Brain and Placenta. Pharmaceutics 2022; 14:pharmaceutics14071376. [PMID: 35890272 PMCID: PMC9319476 DOI: 10.3390/pharmaceutics14071376] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/14/2022] [Accepted: 06/24/2022] [Indexed: 01/06/2023] Open
Abstract
Drug transporters play an important role in the maintenance of chemical balance and homeostasis in different tissues. In addition to their physiological functions, they are crucial for the absorption, distribution, and elimination of many clinically important drugs, thereby impacting therapeutic efficacy and toxicity. Increasing evidence has demonstrated that infectious, metabolic, inflammatory, and neurodegenerative diseases alter the expression and function of drug transporters. However, the current knowledge on transporter regulation in critical protective barriers, such as the brain and placenta, is still limited and requires more research. For instance, while many studies have examined P-glycoprotein, it is evident that research on the regulation of highly expressed transporters in the blood–brain barrier and blood–placental barrier are lacking. The aim of this review is to summarize the currently available literature in order to better understand transporter regulation in these critical barriers.
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Affiliation(s)
- Valerio Taggi
- Biopharmacy, Department of Pharmaceutical Sciences, University of Basel, 4056 Basel, Switzerland; (V.T.); (H.E.M.z.S.)
| | - Mario Riera Romo
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada; (M.R.R.); (M.P.-M.)
| | - Micheline Piquette-Miller
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada; (M.R.R.); (M.P.-M.)
| | | | - Sibylle Neuhoff
- Certara UK Ltd., Simcyp Division, Sheffield S1 2BJ, UK
- Correspondence:
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Brouwer KLR, Evers R, Hayden E, Hu S, Li CY, Meyer Zu Schwabedissen HE, Neuhoff S, Oswald S, Piquette-Miller M, Saran C, Sjöstedt N, Sprowl JA, Stahl SH, Yue W. Regulation of Drug Transport Proteins-From Mechanisms to Clinical Impact: A White Paper on Behalf of the International Transporter Consortium. Clin Pharmacol Ther 2022; 112:461-484. [PMID: 35390174 PMCID: PMC9398928 DOI: 10.1002/cpt.2605] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/20/2022] [Indexed: 12/14/2022]
Abstract
Membrane transport proteins are involved in the absorption, disposition, efficacy, and/or toxicity of many drugs. Numerous mechanisms (e.g., nuclear receptors, epigenetic gene regulation, microRNAs, alternative splicing, post‐translational modifications, and trafficking) regulate transport protein levels, localization, and function. Various factors associated with disease, medications, and dietary constituents, for example, may alter the regulation and activity of transport proteins in the intestine, liver, kidneys, brain, lungs, placenta, and other important sites, such as tumor tissue. This white paper reviews key mechanisms and regulatory factors that alter the function of clinically relevant transport proteins involved in drug disposition. Current considerations with in vitro and in vivo models that are used to investigate transporter regulation are discussed, including strengths, limitations, and the inherent challenges in predicting the impact of changes due to regulation of one transporter on compensatory pathways and overall drug disposition. In addition, translation and scaling of in vitro observations to in vivo outcomes are considered. The importance of incorporating altered transporter regulation in modeling and simulation approaches to predict the clinical impact on drug disposition is also discussed. Regulation of transporters is highly complex and, therefore, identification of knowledge gaps will aid in directing future research to expand our understanding of clinically relevant molecular mechanisms of transporter regulation. This information is critical to the development of tools and approaches to improve therapeutic outcomes by predicting more accurately the impact of regulation‐mediated changes in transporter function on drug disposition and response.
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Affiliation(s)
- Kim L R Brouwer
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Raymond Evers
- Preclinical Sciences and Translational Safety, Johnson & Johnson, Janssen Pharmaceuticals, Spring House, Pennsylvania, USA
| | - Elizabeth Hayden
- Department of Pharmaceutical Sciences, University at Buffalo, Buffalo, New York, USA
| | - Shuiying Hu
- College of Pharmacy, The Ohio State University, Columbus, Ohio, USA
| | | | | | | | - Stefan Oswald
- Institute of Pharmacology and Toxicology, Rostock University Medical Center, Rostock, Germany
| | | | - Chitra Saran
- Department of Pharmacology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Noora Sjöstedt
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Jason A Sprowl
- Department of Pharmaceutical Sciences, University at Buffalo, Buffalo, New York, USA
| | - Simone H Stahl
- CVRM Safety, Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Wei Yue
- College of Pharmacy, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
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Goetzl L, Darbinian N, Merabova N, Devane LC, Ramamoorthy S. Gestational Age Variation in Human Placental Drug Transporters. Front Pharmacol 2022; 13:837694. [PMID: 35462922 PMCID: PMC9019509 DOI: 10.3389/fphar.2022.837694] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/24/2022] [Indexed: 12/29/2022] Open
Abstract
Patient and providers’ fear of fetal exposure to medications may lead to discontinuation of treatment, disease relapse, and maternal morbidity. Placental drug transporters play a critical role in fetal exposure through active transport but the majority of data are limited to the 3rd trimester, when the majority of organogenesis has already occurred. Our objective was to define gestational age (GA) dependent changes in protein activity, expression and modifications of five major placental drug transporters: SERT, P-gp, NET, BCRP and MRP3. Apical brush border membrane fractions were prepared from fresh 1st, 2nd and 3rd trimester human placentas collected following elective pregnancy termination or planned cesarean delivery. A structured maternal questionnaire was used to identify maternal drug use and exclude exposed subjects. Changes in placental transporter activity and expression relative to housekeeping proteins were quantified. There was evidence for strong developmental regulation of SERT, NET, P-gp, BCRP and MRP3. P-gp and BCRP decreased with gestation (r = −0.72, p < 0.001 and r = −0.77, p < 0.001, respectively). Total SERT increased with gestation but this increase was due to a decrease in SERT cleavage products across trimesters. Uncleaved SERT increased with GA (r = 0.89, p < 0.001) while cleaved SERT decreased with GA (r = −0.94, p < 0.001). Apical membrane NET overall did not appear to be developmentally regulated (r = −0.08, p = 0.53). Two forms of MRP3 were identified; the 50 kD form did not change across GA; the 160 kD form was steady in the 1st and 2nd trimester and increased in the 3rd trimester (r = 0.24, p = 0.02). The 50 kD form was expressed at higher levels. The observed patterns of SERT, NET P-gp, BCRP and MRP3 expression and activity may be associated with transporter activity or decreased placental permeability in the 1st trimester to transporter specific substrates including commonly used psychoactive medications such as anti-depressants, anti-psychotics, and amphetamines, while transport of nutrients and serotonin is important in the 1st trimester. Overall these observations are consistent with a strong protective effect during organogenesis. 3rd trimester estimates of fetal exposure obtained from cord blood likely significantly overestimate early fetal exposure to these medications at any fixed maternal dose.
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Kukal S, Guin D, Rawat C, Bora S, Mishra MK, Sharma P, Paul PR, Kanojia N, Grewal GK, Kukreti S, Saso L, Kukreti R. Multidrug efflux transporter ABCG2: expression and regulation. Cell Mol Life Sci 2021; 78:6887-6939. [PMID: 34586444 PMCID: PMC11072723 DOI: 10.1007/s00018-021-03901-y] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 06/24/2021] [Accepted: 07/15/2021] [Indexed: 12/15/2022]
Abstract
The adenosine triphosphate (ATP)-binding cassette efflux transporter G2 (ABCG2) was originally discovered in a multidrug-resistant breast cancer cell line. Studies in the past have expanded the understanding of its role in physiology, disease pathology and drug resistance. With a widely distributed expression across different cell types, ABCG2 plays a central role in ATP-dependent efflux of a vast range of endogenous and exogenous molecules, thereby maintaining cellular homeostasis and providing tissue protection against xenobiotic insults. However, ABCG2 expression is subjected to alterations under various pathophysiological conditions such as inflammation, infection, tissue injury, disease pathology and in response to xenobiotics and endobiotics. These changes may interfere with the bioavailability of therapeutic substrate drugs conferring drug resistance and in certain cases worsen the pathophysiological state aggravating its severity. Considering the crucial role of ABCG2 in normal physiology, therapeutic interventions directly targeting the transporter function may produce serious side effects. Therefore, modulation of transporter regulation instead of inhibiting the transporter itself will allow subtle changes in ABCG2 activity. This requires a thorough comprehension of diverse factors and complex signaling pathways (Kinases, Wnt/β-catenin, Sonic hedgehog) operating at multiple regulatory levels dictating ABCG2 expression and activity. This review features a background on the physiological role of transporter, factors that modulate ABCG2 levels and highlights various signaling pathways, molecular mechanisms and genetic polymorphisms in ABCG2 regulation. This understanding will aid in identifying potential molecular targets for therapeutic interventions to overcome ABCG2-mediated multidrug resistance (MDR) and to manage ABCG2-related pathophysiology.
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Affiliation(s)
- Samiksha Kukal
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Mall Road, Delhi, 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Debleena Guin
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Mall Road, Delhi, 110007, India
- Department of Biotechnology, Delhi Technological University, Shahbad Daulatpur, Main Bawana Road, Delhi, 110042, India
| | - Chitra Rawat
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Mall Road, Delhi, 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Shivangi Bora
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Mall Road, Delhi, 110007, India
- Department of Biotechnology, Delhi Technological University, Shahbad Daulatpur, Main Bawana Road, Delhi, 110042, India
| | - Manish Kumar Mishra
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Mall Road, Delhi, 110007, India
- Department of Biotechnology, Delhi Technological University, Shahbad Daulatpur, Main Bawana Road, Delhi, 110042, India
| | - Priya Sharma
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Mall Road, Delhi, 110007, India
| | - Priyanka Rani Paul
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Mall Road, Delhi, 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Neha Kanojia
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Mall Road, Delhi, 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Gurpreet Kaur Grewal
- Department of Biotechnology, Kanya Maha Vidyalaya, Jalandhar, Punjab, 144004, India
| | - Shrikant Kukreti
- Nucleic Acids Research Lab, Department of Chemistry, University of Delhi (North Campus), Delhi, 110007, India
| | - Luciano Saso
- Department of Physiology and Pharmacology "Vittorio Erspamer", Sapienza University of Rome, P. le Aldo Moro 5, 00185, Rome, Italy
| | - Ritushree Kukreti
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Mall Road, Delhi, 110007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Ikumi NM, Anumba D, Matjila M. Pharmacokinetics and placental transfer of dolutegravir in pregnancy. J Antimicrob Chemother 2021; 77:283-289. [PMID: 34618029 DOI: 10.1093/jac/dkab365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Dolutegravir is currently recommended by the WHO as the preferred first-line treatment for all people with HIV, including pregnant women. Estimates indicate that, by 2024, nearly 22 million adults in low- and middle-income countries will have transitioned to dolutegravir-based ART. It is therefore critical that there is a clear appreciation and understanding of the risks that may be associated with in utero exposure to dolutegravir. In this review we consolidate data from studies on dolutegravir and the placenta. The studies have largely focused on the pharmacokinetics and placental transfer of dolutegravir in pregnancy. These include studies on transplacental transfer of dolutegravir, ex vivo placenta perfusion models, physiologically based pharmacokinetic (PBPK) models and animal studies. The data available clearly demonstrate that placental transfer of dolutegravir occurs in moderate to high concentrations. Intracellular placental dolutegravir has been demonstrated in the placental villous tissue. There are limited data suggesting that pregnancy is associated with decreased maternal dolutegravir levels. In addition, PBPK models have great potential in predicting the passage of drugs through the placenta and further contributing towards the elucidation of fetal exposure. The animal studies available demonstrate that in utero dolutegravir exposure can be associated with neural tube defects. Taking into consideration that antiretroviral exposure may be associated with poor placental development or function and increased risk of adverse effects to the fetus, it is crucially important that these risks are evaluated, especially with the rapid scale up of dolutegravir-based ART into national treatment programmes.
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Affiliation(s)
- Nadia M Ikumi
- Department of Obstetrics and Gynaecology, University of Cape Town, Cape Town, South Africa
| | - Dilly Anumba
- Academic Unit of Reproductive and Developmental Medicine, University of Sheffield, Sheffield, UK
| | - Mushi Matjila
- Department of Obstetrics and Gynaecology, University of Cape Town, Cape Town, South Africa
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Hu L, Liang Y, Wu K, Wang C, Zhang T, Peng R, Zou F. Repressing PDCD4 activates JNK/ABCG2 pathway to induce chemoresistance to fluorouracil in colorectal cancer cells. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:114. [PMID: 33569416 PMCID: PMC7867943 DOI: 10.21037/atm-20-4292] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Background Colorectal cancer (CRC) is the third major cause of cancer-related death worldwide, and fluorouracil (5-FU) is widely used in the treatment of CRC. However, acquired resistance to 5-FU has become an obstacle in the effective treatment of CRC. Adenosine triphosphate (ATP)-binding cassette sub-family G member 2 (ABCG2) has been found highly expressed in CRC patients with poor responsiveness to folinic acid/5-FU/irinotecan. However, the mechanisms of 5-FU resistance regulated by ABCG2 in CRC cells remain to be comprehensively understood. We aimed to explore the upstream mechanisms of ABCG2 involved in the regulation of chemoresistance in CRC cells. Methods We investigated the potential mechanisms of 5-FU resistance in HCT116, RKO, RKO microRNA-21 (miR-21) knockout, and acquired 5-FU-resistant HCT116 (HCT116/FUR) cells. The biochemical and biological analyses were conducted using semiquantitative reverse transcription-polymerase chain reaction (qRT-PCR), western blotting, transfections, and rescue experiments, along with cell proliferation, viability, and colony formation assays. In order to investigate the efficacy of inhibiting the c-Jun NH2 terminal kinase (JNK) pathway to overcome 5-FU resistance, HCT116 and 5-FU-resistant HCT116 cells were inoculated into BALB/c-nu/nu mice to establish the cell-derived xenograft model. Results The results showed that ABCG2 expression in HCT116/FUR cells was higher compared to HCT116 cells. Overexpression of ABCG2 decreased sensitivity to 5-FU in HCT116 cells, but knockdown of ABCG2 decreased the survival rate in HCT116/FUR cells. Additionally, repressing programmed cell death 4 (PDCD4) activated the JNK pathway in HCT116/FUR cells. Overexpression of PDCD4 inhibited phosphorylation of c-Jun and ABCG2 expression, and recovered sensitivity to 5-FU in HCT116/FUR cells. Moreover, treatment with the JNK pathway inhibitor SP600125 downregulated ABCG2 expression and rescued sensitivity to 5-FU in HCT116/FUR cells. We also found that miR-21 expression in HCT116/FUR cells was higher compared to HCT116 cells. Finally, 5-FU treatment in combination with SP600125 significantly decreased tumorigenicity compared to other treatments in vivo. Conclusions Our results demonstrated that 5-FU treatment upregulated miR-21, which directly repressed PDCD4, and subsequently activated the JNK pathway, leading to the upregulation of ABCG2 in CRC cells. Inhibition of the JNK pathway overcame acquired 5-FU resistance both in vivo and in vitro.
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Affiliation(s)
- Lanlin Hu
- College of Life Sciences, Sichuan University, Chengdu, China
| | - Yutong Liang
- College of Life Sciences, Sichuan University, Chengdu, China
| | - Kelv Wu
- College of Life Sciences, Sichuan University, Chengdu, China
| | - Caixia Wang
- College of Life Sciences, Sichuan University, Chengdu, China
| | - Tao Zhang
- College of Life Sciences, Sichuan University, Chengdu, China
| | - Rui Peng
- College of Life Sciences, Sichuan University, Chengdu, China
| | - Fangdong Zou
- College of Life Sciences, Sichuan University, Chengdu, China
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12
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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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13
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Anoshchenko O, Prasad B, Neradugomma NK, Wang J, Mao Q, Unadkat JD. Gestational Age-Dependent Abundance of Human Placental Transporters as Determined by Quantitative Targeted Proteomics. Drug Metab Dispos 2020; 48:735-741. [PMID: 32591415 PMCID: PMC7469251 DOI: 10.1124/dmd.120.000067] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 06/11/2020] [Indexed: 11/24/2022] Open
Abstract
Some women take medication during pregnancy to address a variety of clinical conditions. Because of ethical and logistical concerns, it is impossible to determine fetal drug exposure, and therefore fetal risk, during pregnancy. Hence, alternative approaches need to be developed to predict maternal-fetal drug exposure throughout pregnancy. To do so, we previously developed and verified a maternal-fetal physiologically based pharmacokinetic model, which can predict fetal exposure to drugs that passively cross the placenta. However, many drugs are actively transported by the placenta (e.g., human immunodeficiency virus protease inhibitors). To extend our maternal-fetal physiologically based pharmacokinetic model to these actively transported drugs, we determined the gestational age–dependent changes in the protein abundance of placental transporters. Total cellular membrane fractions from first trimester (T1; n = 15), second trimester (T2; n = 19), and term (n = 15) human placentae obtained from uncomplicated pregnancies were isolated by ultracentrifugation. Transporter protein abundance was determined by targeted quantitative proteomics using liquid chromatography tandem mass specrometry. We observed that breast cancer resistance protein and P-glycoprotein abundance significantly decreased from T1 to term by 55% and 69%, respectively (per gram of tissue). Organic anion–transporting polypeptide (OATP) 2B1 abundance significantly decreased from T1 to T2 by 32%. In contrast, organic cation transporter (OCT) 3 and organic anion transporter 4 abundance significantly increased with gestational age (2-fold from T1 to term, 1.6-fold from T2 to term). Serotonin transporter and norepinephrine transporter did not change with gestational age. The abundance of bile salt export pump, multidrug resistance-associated protein 1-5, Na+-taurocholate cotransporting polypeptide, OATP1B1, OATP1B3, OCTN1-2, concentrative nucleoside transporter 1-3, equilibrative nucleoside transporter 2, and multidrug and toxin extrusion 1 could not be quantified. These data can be incorporated into our maternal-fetal physiologically based pharmacokinetic model to predict fetal exposure to drugs that are actively transported across the placenta.
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Affiliation(s)
- Olena Anoshchenko
- Department of Pharmaceutics, University of Washington, Seattle, Washington
| | - Bhagwat Prasad
- Department of Pharmaceutics, University of Washington, Seattle, Washington
| | | | - Joanne Wang
- Department of Pharmaceutics, University of Washington, Seattle, Washington
| | - Qingcheng Mao
- Department of Pharmaceutics, University of Washington, Seattle, Washington
| | - Jashvant D Unadkat
- Department of Pharmaceutics, University of Washington, Seattle, Washington
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14
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Zamora-Olivares D, Kaoud TS, Zeng L, Pridgen JR, Zhuang DL, Ekpo YE, Nye JR, Telles M, Anslyn EV, Dalby KN. Quantification of ERK Kinase Activity in Biological Samples Using Differential Sensing. ACS Chem Biol 2020; 15:83-92. [PMID: 31775004 DOI: 10.1021/acschembio.9b00580] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The understanding of complex biological systems requires an ability to evaluate interacting networks of genes, proteins, and cellular reactions. Enabling technologies that support the rapid quantification of these networks will facilitate the development of biological models and help to identify treatment targets and to assess treatment plans. The biochemical process of protein phosphorylation, which underlies almost all aspects of cell signaling, is typically evaluated by immunoblotting procedures (Western blot) or more recently proteomics procedures, which provide qualitative estimates of the concentration of proteins and their modifications in cells. However, protein modifications are difficult to correlate with activity, and while immunoblotting and proteomics approaches have the potential to be quantitative, they require a complex series of steps that diminish reproducibility. Here, a complementary approach is presented that allows for the rapid quantification of a protein kinase activity in cell lysates and tumor samples. Using the activity of cellular ERK (extracellular signal-regulated kinase) as a test case, an array sensing approach that utilizes a library of differential peptide-based biosensors and chemometric tools was used to rapidly quantify nanograms of active ERK in micrograms of unfractionated cell lysates and tumor extracts. This approach has the potential both for high-throughput and for quantifying the activities of multiple protein kinases in a single biological sample. The critical advantages of this differential sensing approach over others are that it removes the need for the addition of exogenous inhibitors to suppress the activities of major off-target kinases and allows us to quantitate the amount of active kinase in tested samples rather than measuring the changes in its activity upon induction or inhibition.
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Affiliation(s)
- Diana Zamora-Olivares
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
- Texas Institute for Discovery Education in Science and Freshman Research Initiative, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Tamer S. Kaoud
- Division of Chemical Biology & Medicinal Chemistry, College of Pharmacy, The University of Texas at Austin, Austin, Texas 78712, United States
- Medicinal Chemistry Department, Faculty of Pharmacy, Minia University, Minia 61519, Egypt
| | - Lingyu Zeng
- College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, China
| | - Jacey R. Pridgen
- Division of Chemical Biology & Medicinal Chemistry, College of Pharmacy, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Deborah L. Zhuang
- Texas Institute for Discovery Education in Science and Freshman Research Initiative, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Yakndara E. Ekpo
- Texas Institute for Discovery Education in Science and Freshman Research Initiative, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Jessica R. Nye
- Texas Institute for Discovery Education in Science and Freshman Research Initiative, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Mitchell Telles
- Texas Institute for Discovery Education in Science and Freshman Research Initiative, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Eric V. Anslyn
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Kevin N. Dalby
- Division of Chemical Biology & Medicinal Chemistry, College of Pharmacy, The University of Texas at Austin, Austin, Texas 78712, United States
- Department of Oncology, Dell Medical School, The University of Texas at Austin, Austin, Texas 78712, United States
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15
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Szilagyi A, Gelencser Z, Romero R, Xu Y, Kiraly P, Demeter A, Palhalmi J, Gyorffy BA, Juhasz K, Hupuczi P, Kekesi KA, Meinhardt G, Papp Z, Draghici S, Erez O, Tarca AL, Knöfler M, Than NG. Placenta-Specific Genes, Their Regulation During Villous Trophoblast Differentiation and Dysregulation in Preterm Preeclampsia. Int J Mol Sci 2020; 21:ijms21020628. [PMID: 31963593 PMCID: PMC7013556 DOI: 10.3390/ijms21020628] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 01/07/2020] [Accepted: 01/08/2020] [Indexed: 12/15/2022] Open
Abstract
The human placenta maintains pregnancy and supports the developing fetus by providing nutrition, gas-waste exchange, hormonal regulation, and an immunological barrier from the maternal immune system. The villous syncytiotrophoblast carries most of these functions and provides the interface between the maternal and fetal circulatory systems. The syncytiotrophoblast is generated by the biochemical and morphological differentiation of underlying cytotrophoblast progenitor cells. The dysfunction of the villous trophoblast development is implicated in placenta-mediated pregnancy complications. Herein, we describe gene modules and clusters involved in the dynamic differentiation of villous cytotrophoblasts into the syncytiotrophoblast. During this process, the immune defense functions are first established, followed by structural and metabolic changes, and then by peptide hormone synthesis. We describe key transcription regulatory molecules that regulate gene modules involved in placental functions. Based on transcriptomic evidence, we infer how villous trophoblast differentiation and functions are dysregulated in preterm preeclampsia, a life-threatening placenta-mediated obstetrical syndrome for the mother and fetus. In the conclusion, we uncover the blueprint for villous trophoblast development and its impairment in preterm preeclampsia, which may aid in the future development of non-invasive biomarkers for placental functions and early identification of women at risk for preterm preeclampsia as well as other placenta-mediated pregnancy complications.
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Affiliation(s)
- Andras Szilagyi
- Systems Biology of Reproduction Lendulet Group, Institute of Enzymology, Research Centre for Natural Sciences, H-1117 Budapest, Hungary; (A.S.); (Z.G.); (P.K.); (A.D.); (J.P.); (K.J.)
| | - Zsolt Gelencser
- Systems Biology of Reproduction Lendulet Group, Institute of Enzymology, Research Centre for Natural Sciences, H-1117 Budapest, Hungary; (A.S.); (Z.G.); (P.K.); (A.D.); (J.P.); (K.J.)
| | - Roberto Romero
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD 20692, and Detroit, MI 48201, USA; (R.R.); (Y.X.); (O.E.); (A.L.T.)
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI 48824, USA
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
- Detroit Medical Center, Detroit, MI 48201, USA
- Department of Obstetrics and Gynecology, Florida International University, Miami, FL 33199, USA
| | - Yi Xu
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD 20692, and Detroit, MI 48201, USA; (R.R.); (Y.X.); (O.E.); (A.L.T.)
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Peter Kiraly
- Systems Biology of Reproduction Lendulet Group, Institute of Enzymology, Research Centre for Natural Sciences, H-1117 Budapest, Hungary; (A.S.); (Z.G.); (P.K.); (A.D.); (J.P.); (K.J.)
| | - Amanda Demeter
- Systems Biology of Reproduction Lendulet Group, Institute of Enzymology, Research Centre for Natural Sciences, H-1117 Budapest, Hungary; (A.S.); (Z.G.); (P.K.); (A.D.); (J.P.); (K.J.)
| | - Janos Palhalmi
- Systems Biology of Reproduction Lendulet Group, Institute of Enzymology, Research Centre for Natural Sciences, H-1117 Budapest, Hungary; (A.S.); (Z.G.); (P.K.); (A.D.); (J.P.); (K.J.)
| | - Balazs A. Gyorffy
- Laboratory of Proteomics, Institute of Biology, Eotvos Lorand University, H-1117 Budapest, Hungary; (B.A.G.); (K.A.K.)
| | - Kata Juhasz
- Systems Biology of Reproduction Lendulet Group, Institute of Enzymology, Research Centre for Natural Sciences, H-1117 Budapest, Hungary; (A.S.); (Z.G.); (P.K.); (A.D.); (J.P.); (K.J.)
| | - Petronella Hupuczi
- Maternity Private Clinic of Obstetrics and Gynecology, H-1126 Budapest, Hungary; (P.H.); (Z.P.)
| | - Katalin Adrienna Kekesi
- Laboratory of Proteomics, Institute of Biology, Eotvos Lorand University, H-1117 Budapest, Hungary; (B.A.G.); (K.A.K.)
- Department of Physiology and Neurobiology, Eotvos Lorand University, H-1117 Budapest, Hungary
| | - Gudrun Meinhardt
- Department of Obstetrics and Gynecology, Reproductive Biology Unit, Medical University of Vienna, Vienna A-1090, Austria; (G.M.); (M.K.)
| | - Zoltan Papp
- Maternity Private Clinic of Obstetrics and Gynecology, H-1126 Budapest, Hungary; (P.H.); (Z.P.)
- Department of Obstetrics and Gynecology, Semmelweis University, H-1088 Budapest, Hungary
| | - Sorin Draghici
- Department of Computer Science, Wayne State University College of Engineering, Detroit, MI 48202, USA;
| | - Offer Erez
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD 20692, and Detroit, MI 48201, USA; (R.R.); (Y.X.); (O.E.); (A.L.T.)
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA
- Department of Obstetrics and Gynecology, Soroka University Medical Center, Ben-Gurion University of the Negev, Beer-Sheva 84101, Israel
| | - Adi Laurentiu Tarca
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD 20692, and Detroit, MI 48201, USA; (R.R.); (Y.X.); (O.E.); (A.L.T.)
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Martin Knöfler
- Department of Obstetrics and Gynecology, Reproductive Biology Unit, Medical University of Vienna, Vienna A-1090, Austria; (G.M.); (M.K.)
| | - Nandor Gabor Than
- Systems Biology of Reproduction Lendulet Group, Institute of Enzymology, Research Centre for Natural Sciences, H-1117 Budapest, Hungary; (A.S.); (Z.G.); (P.K.); (A.D.); (J.P.); (K.J.)
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD 20692, and Detroit, MI 48201, USA; (R.R.); (Y.X.); (O.E.); (A.L.T.)
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA
- Maternity Private Clinic of Obstetrics and Gynecology, H-1126 Budapest, Hungary; (P.H.); (Z.P.)
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, H-1085 Budapest, Hungary
- Correspondence: ; Tel.: +36-1-382-6788
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16
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Yu Y, Fang L, Wang S, Li Y, Guo Y, Sun YP. Amphiregulin promotes trophoblast invasion and increases MMP9/TIMP1 ratio through ERK1/2 and Akt signal pathways. Life Sci 2019; 236:116899. [DOI: 10.1016/j.lfs.2019.116899] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 09/20/2019] [Accepted: 09/20/2019] [Indexed: 12/26/2022]
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17
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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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18
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Nedeljković M, Damjanović A. Mechanisms of Chemotherapy Resistance in Triple-Negative Breast Cancer-How We Can Rise to the Challenge. Cells 2019; 8:E957. [PMID: 31443516 PMCID: PMC6770896 DOI: 10.3390/cells8090957] [Citation(s) in RCA: 439] [Impact Index Per Article: 87.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 08/21/2019] [Indexed: 02/07/2023] Open
Abstract
Triple-negative (TNBC) is the most lethal subtype of breast cancer owing to high heterogeneity, aggressive nature, and lack of treatment options. Chemotherapy remains the standard of care for TNBC treatment, but unfortunately, patients frequently develop resistance. Accordingly, in recent years, tremendous effort has been made into elucidating the mechanisms of TNBC chemoresistance with the goal of identifying new molecular targets. It has become evident that the development of TNBC chemoresistance is multifaceted and based on the elaborate interplay of the tumor microenvironment, drug efflux, cancer stem cells, and bulk tumor cells. Alterations of multiple signaling pathways govern these interactions. Moreover, TNBC's high heterogeneity, highlighted in the existence of several molecular signatures, presents a significant obstacle to successful treatment. In the present, in-depth review, we explore the contribution of key mechanisms to TNBC chemoresistance as well as emerging strategies to overcome them. We discuss novel anti-tumor agents that target the components of these mechanisms and pay special attention to their current clinical development while emphasizing the challenges still ahead of successful TNBC management. The evidence presented in this review outlines the role of crucial pathways in TNBC survival following chemotherapy treatment and highlights the importance of using combinatorial drug strategies and incorporating biomarkers in clinical studies.
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Affiliation(s)
- Milica Nedeljković
- Institute of Oncology and Radiology of Serbia, Pasterova 14, 11000 Belgrade, Serbia.
| | - Ana Damjanović
- Institute of Oncology and Radiology of Serbia, Pasterova 14, 11000 Belgrade, Serbia
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19
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Abbasifarid E, Sajjadi-Jazi SM, Beheshtian M, Samimi H, Larijani B, Haghpanah V. The Role of ATP-Binding Cassette Transporters in the Chemoresistance of Anaplastic Thyroid Cancer: A Systematic Review. Endocrinology 2019; 160:2015-2023. [PMID: 31271419 DOI: 10.1210/en.2019-00241] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Accepted: 06/28/2019] [Indexed: 12/21/2022]
Abstract
Anaplastic thyroid cancer (ATC) is an aggressive type of thyroid cancer with a high mortality rate. Cytotoxic drugs are among the treatment modalities usually used for ATC treatment. However, systemic chemotherapies for ATC have not been shown to have remarkable efficacy. ATP-binding cassette (ABC) transporters have been suggested as a possible mechanism in ATC resistance to chemotherapy. This systematic review was aimed to define the possible roles of ABC transporters in ATC resistance to chemotherapy. Numerous databases, including Scopus, Web of Science, PubMed, Cochrane Library, Ovid, ProQuest, and EBSCO, were searched for papers published since 1990, with predefined keywords. The literature searches were updated twice, in 2015 and 2017. All identified articles were reviewed, and 14 papers that met the inclusion criteria were selected. In the eligible studies, the roles of 10 out of 49 ABC transporters were evaluated; among them, three pumps (ABCB1, ABCC1, and ABCG2) were the most studied transporters in ATC samples. ABCC1 and ABCG2 had the highest expression rates in ATC, and ABCB1 ranked second among the inspected transporters. In conclusion, ABC transporters are the major determinants of ATC resistance to chemotherapy. By identifying these transporters, we can tailor the best treatment approach for patients with ATC. Additional studies are needed to define the exact role of each ABC transporter and other mechanisms in ATC drug resistance.
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Affiliation(s)
- Elnaz Abbasifarid
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Sayed Mahmoud Sajjadi-Jazi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Beheshtian
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Hilda Samimi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Vahid Haghpanah
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Personalized Medicine Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
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20
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Transplacental transport of paracetamol and its phase II metabolites using the ex vivo placenta perfusion model. Toxicol Appl Pharmacol 2019; 370:14-23. [PMID: 30849458 DOI: 10.1016/j.taap.2019.03.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 02/28/2019] [Accepted: 03/03/2019] [Indexed: 12/21/2022]
Abstract
In Europe, 50-60% of pregnant women uses paracetamol (PCM), also known as acetaminophen. While it was considered to be safe, recent studies have shown an association between prenatal exposure to PCM and increased incidences of autism, cryptorchidism, asthma and ADHD. In this study the transplacental transfer of PCM and its metabolites was investigated using an ex vivo human placenta perfusion model (closed circuit; n = 38). Maternal-to-foetal (M-F) and foetal-to-maternal (F-M) transplacental transfer was determined at a concentration correlating with the maximum and steady state concentration in normal clinical use. Antipyrine (AP) was added as reference compound. Samples of the foetal and maternal perfusion medium were taken until 210 (PCM) or 360 min (paracetamol sulphate (PCM-S) and paracetamol glucuronide (PCM-G). PCM and AP concentrations reached an equilibrium between foetal and maternal compartments within the duration of the perfusion experiment and irrespective of the transfer direction. The percentage placental transfer of PCM was 45% (M-F and F-M). For PCM-S, transfer was 39% (M-F) and 28% (F-M), while the PCM-G transfer was 34% (M-F) and 25% (F-M). During placenta perfusions with the metabolites slight conversion (3.5-4.1%) to PCM was observed. In conclusion, PCM crosses the placental barrier rapidly via passive diffusion. Differences in flow rate and villous placental structure explain the significantly faster M-F transfer than F-M transfer of PCM. The larger and more hydrophilic molecules PCM-S and PCM-G cross the placenta at a significantly lower rate. Moreover, their F-M transport is about 40% slower than M-F transport, suggesting involvement of a transporter.
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21
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Barrera-Rodríguez R. Importance of the Keap1-Nrf2 pathway in NSCLC: Is it a possible biomarker? Biomed Rep 2018; 9:375-382. [PMID: 30345037 PMCID: PMC6176108 DOI: 10.3892/br.2018.1143] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 08/02/2018] [Indexed: 12/12/2022] Open
Abstract
Worldwide, lung cancer remains the most common cause of cancer-related mortality, with non-small cell lung cancer (NSCLC) accounting for 85% of all diagnosed lung cancer cases. Chemotherapy is considered the standard of care for patients with advanced NSCLC; however, the tumors can develop mechanisms that inactivate these drugs. Comparative genomic analyses have revealed that disruptions in the kelch-like ECH-associated protein 1 (Keap1)-nuclear factor erythroid-2-related factor-2 (Nrf2) pathway are frequent in NSCLC, although Nrf2 mutations occur less frequently than Keap1 mutations. As the Keap1-Nrf2 pathway appears to be a primary regulator of key cellular processes that aid to resist the action of chemotherapy drugs, the clinical implementation of Nrf2 inhibitors in patients with advanced NSCLC may be a useful therapeutic approach for patients harboring KEAP1-NRF2 mutations. The aim of the present review was to highlight findings of how constitutive Nrf2 activation may be a specific biomarker for predicting patients most likely to benefit from classical chemotherapy drugs, overall improving patient survival rate.
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Affiliation(s)
- Raúl Barrera-Rodríguez
- Department of Biochemistry and Environmental Medicine, National Institute of Respiratory Diseases, Mexico City 14080, Mexico
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22
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Cerveny L, Ptackova Z, Ceckova M, Karahoda R, Karbanova S, Jiraskova L, Greenwood SL, Glazier JD, Staud F. Equilibrative Nucleoside Transporter 1 (ENT1, SLC29A1) Facilitates Transfer of the Antiretroviral Drug Abacavir across the Placenta. Drug Metab Dispos 2018; 46:1817-1826. [PMID: 30097436 DOI: 10.1124/dmd.118.083329] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Accepted: 08/08/2018] [Indexed: 01/01/2023] Open
Abstract
Abacavir is a preferred antiretroviral drug for preventing mother-to-child human immunodeficiency virus transmission; however, mechanisms of its placental transfer have not been satisfactorily described to date. Because abacavir is a nucleoside-derived drug, we hypothesized that the nucleoside transporters, equilibrative nucleoside transporters (ENTs, SLC29A) and/or Na+-dependent concentrative nucleoside transporters (CNTs, SLC28A), may play a role in its passage across the placenta. To test this hypothesis, we performed uptake experiments using the choriocarcinoma-derived BeWo cell line, human fresh villous fragments, and microvillous plasma membrane (MVM) vesicles. Using endogenous substrates of nucleoside transporters, [3H]-adenosine (ENTs, CNT2, and CNT3) and [3H]-thymidine (ENTs, CNT1, and CNT3), we showed significant activity of ENT1 and CNT2 in BeWo cells, whereas experiments in the villous fragments and MVM vesicles, representing a model of the apical membrane of a syncytiotrophoblast, revealed only ENT1 activity. When testing [3H]-abacavir uptakes, we showed that of the nucleoside transporters, ENT1 plays the dominant role in abacavir uptake into placental tissues, whereas contribution of Na+-dependent transport, most likely mediated by CNTs, was observed only in BeWo cells. Subsequent experiments with dually perfused rat term placentas showed that Ent1 contributes significantly to overall [3H]-abacavir placental transport. Finally, we quantified the expression of SLC29A in first- and third-trimester placentas, revealing that SLC29A1 is the dominant isoform. Neither SLC29A1 nor SLC29A2 expression changed over the course of placental development, but there was considerable interindividual variability in their expression. Therefore, drug-drug interactions and the effect of interindividual variability in placental ENT1 expression on abacavir disposition into fetal circulation should be further investigated to guarantee safe and effective abacavir-based combination therapies in pregnancy.
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Affiliation(s)
- Lukas Cerveny
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic (L.C., Z.P., M.C., R.K., S.K., L.J., F.S.) and Maternal and Fetal Health Research Centre, Institute of Human Development, University of Manchester, St. Mary's Hospital, Central Manchester, University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom (S.L.G., J.D.G.)
| | - Zuzana Ptackova
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic (L.C., Z.P., M.C., R.K., S.K., L.J., F.S.) and Maternal and Fetal Health Research Centre, Institute of Human Development, University of Manchester, St. Mary's Hospital, Central Manchester, University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom (S.L.G., J.D.G.)
| | - Martina Ceckova
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic (L.C., Z.P., M.C., R.K., S.K., L.J., F.S.) and Maternal and Fetal Health Research Centre, Institute of Human Development, University of Manchester, St. Mary's Hospital, Central Manchester, University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom (S.L.G., J.D.G.)
| | - Rona Karahoda
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic (L.C., Z.P., M.C., R.K., S.K., L.J., F.S.) and Maternal and Fetal Health Research Centre, Institute of Human Development, University of Manchester, St. Mary's Hospital, Central Manchester, University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom (S.L.G., J.D.G.)
| | - Sara Karbanova
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic (L.C., Z.P., M.C., R.K., S.K., L.J., F.S.) and Maternal and Fetal Health Research Centre, Institute of Human Development, University of Manchester, St. Mary's Hospital, Central Manchester, University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom (S.L.G., J.D.G.)
| | - Lucie Jiraskova
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic (L.C., Z.P., M.C., R.K., S.K., L.J., F.S.) and Maternal and Fetal Health Research Centre, Institute of Human Development, University of Manchester, St. Mary's Hospital, Central Manchester, University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom (S.L.G., J.D.G.)
| | - Susan L Greenwood
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic (L.C., Z.P., M.C., R.K., S.K., L.J., F.S.) and Maternal and Fetal Health Research Centre, Institute of Human Development, University of Manchester, St. Mary's Hospital, Central Manchester, University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom (S.L.G., J.D.G.)
| | - Jocelyn D Glazier
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic (L.C., Z.P., M.C., R.K., S.K., L.J., F.S.) and Maternal and Fetal Health Research Centre, Institute of Human Development, University of Manchester, St. Mary's Hospital, Central Manchester, University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom (S.L.G., J.D.G.)
| | - Frantisek Staud
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic (L.C., Z.P., M.C., R.K., S.K., L.J., F.S.) and Maternal and Fetal Health Research Centre, Institute of Human Development, University of Manchester, St. Mary's Hospital, Central Manchester, University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom (S.L.G., J.D.G.)
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23
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Han LW, Gao C, Mao Q. An update on expression and function of P-gp/ABCB1 and BCRP/ABCG2 in the placenta and fetus. Expert Opin Drug Metab Toxicol 2018; 14:817-829. [PMID: 30010462 DOI: 10.1080/17425255.2018.1499726] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
INTRODUCTION P-glycoprotein (P-gp)/ABCB1 and breast cancer resistance protein (BCRP)/ABCG2 are highly expressed in the placenta and fetus throughout gestation and can modulate exposure and toxicity of drugs and xenobiotics to the vulnerable fetus during the sensitive times of growth and development. We aim to provide an update on current knowledge on placental and fetal expressions of the two transporters in different species, and to provide insight on interpreting transporter expression and fetal exposure relative to the concept of fraction of drug transported. Areas covered: Comprehensive literature review through PubMed (primarily from July 2010 to February 2018) on P-gp and BCRP expression and function in the placenta and fetus of primarily human, mouse, rat, and guinea pig. Expert opinion: While there are many commonalities in the expression and function of P-gp and BCRP in the placenta and fetal tissues across species, there are distinct differences in expression levels and temporal changes. Further studies are needed to quantify protein abundance of these transporters and functionally assess their activities at various gestational stages. Combining the knowledge of interspecies differences and the concept of fraction of drug transported, we may better predict the magnitude of impact these transporters have on fetal drug exposure.
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Affiliation(s)
- Lyrialle W Han
- a Department of Pharmaceutics, School of Pharmacy , University of Washington , Seattle , WA , USA
| | - Chunying Gao
- a Department of Pharmaceutics, School of Pharmacy , University of Washington , Seattle , WA , USA
| | - Qingcheng Mao
- a Department of Pharmaceutics, School of Pharmacy , University of Washington , Seattle , WA , USA
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24
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Jiraskova L, Cerveny L, Karbanova S, Ptackova Z, Staud F. Expression of Concentrative Nucleoside Transporters ( SLC28A) in the Human Placenta: Effects of Gestation Age and Prototype Differentiation-Affecting Agents. Mol Pharm 2018; 15:2732-2741. [PMID: 29782174 DOI: 10.1021/acs.molpharmaceut.8b00238] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Equilibrative ( SLC29A) and concentrative ( SLC28A) nucleoside transporters contribute to proper placental development and mediate uptake of nucleosides/nucleoside-derived drugs. We analyzed placental expression of SLC28A mRNA during gestation. Moreover, we studied in choriocarcinoma-derived BeWo cells whether SLC29A and SLC28A mRNA levels can be modulated by activity of adenylyl cyclase, retinoic acid receptor activation, CpG islands methylation, or histone acetylation, using forskolin, all- trans-retinoic acid, 5-azacytidine, and sodium butyrate/sodium valproate, respectively. We found that expression of SLC28A1, SLC28A2, and SLC28A3 increases during gestation and reveals considerable interindividual variability. SLC28A2 was shown to be a dominant subtype in the first-trimester and term human placenta, while SLC28A1 exhibited negligible expression in the term placenta only. In BeWo cells, we detected mRNA of SLC28A2 and SLC28A3. Levels of the latter were affected by 5-azacytidine and all- trans-retinoic acid, while the former was modulated by sodium valproate (but not sodium butyrate), all- trans-retinoic acid, 5-azacytidine, and forskolin that caused 25-fold increase in SLC28A2 mRNA; we documented by analysis of syncytin-1 that the observed changes in SLC28A expression do not correlate with the morphological differentiation state of BeWo cells. Upregulated SLC28A2 mRNA was reflected in elevated uptake of [3H]-adenosine, high-affinity substrate of concentrative nucleoside transporter 2. Using KT-5720 and inhibitors of phosphodiesterases, we subsequently confirmed importance of cAMP/protein kinase A pathway in SLC28A2 regulation. On the other hand, SLC29A genes exhibited constitutive expression and none of the tested compounds increased SLC28A1 expression to detectable levels. In conclusion, we provide the first evidence that methylation status and activation of retinoic acid receptor affect placental SLC28A2 and SLC28A3 transcription and substrates of concentrative nucleoside transporter 2 might be taken up in higher extent in placentas with overactivated cAMP/protein kinase A pathway and likely in the term placenta.
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Affiliation(s)
- Lucie Jiraskova
- Department of Pharmacology and Toxicology , Charles University, Faculty of Pharmacy in Hradec Kralove , Akademika Heyrovskeho 1203 , 50005 Hradec Kralove , Czech Republic
| | - Lukas Cerveny
- Department of Pharmacology and Toxicology , Charles University, Faculty of Pharmacy in Hradec Kralove , Akademika Heyrovskeho 1203 , 50005 Hradec Kralove , Czech Republic
| | - Sara Karbanova
- Department of Pharmacology and Toxicology , Charles University, Faculty of Pharmacy in Hradec Kralove , Akademika Heyrovskeho 1203 , 50005 Hradec Kralove , Czech Republic
| | - Zuzana Ptackova
- Department of Pharmacology and Toxicology , Charles University, Faculty of Pharmacy in Hradec Kralove , Akademika Heyrovskeho 1203 , 50005 Hradec Kralove , Czech Republic
| | - Frantisek Staud
- Department of Pharmacology and Toxicology , Charles University, Faculty of Pharmacy in Hradec Kralove , Akademika Heyrovskeho 1203 , 50005 Hradec Kralove , Czech Republic
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25
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Crawford RR, Potukuchi PK, Schuetz EG, Schuetz JD. Beyond Competitive Inhibition: Regulation of ABC Transporters by Kinases and Protein-Protein Interactions as Potential Mechanisms of Drug-Drug Interactions. Drug Metab Dispos 2018. [PMID: 29514827 DOI: 10.1124/dmd.118.080663] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
ATP-binding cassette (ABC) transporters are transmembrane efflux transporters mediating the extrusion of an array of substrates ranging from amino acids and lipids to xenobiotics, and many therapeutic compounds, including anticancer drugs. The ABC transporters are also recognized as important contributors to pharmacokinetics, especially in drug-drug interactions and adverse drug effects. Drugs and xenobiotics, as well as pathologic conditions, can influence the transcription of ABC transporters, or modify their activity or intracellular localization. Kinases can affect the aforementioned processes for ABC transporters as do protein interactions. In this review, we focus on the ABC transporters ABCB1, ABCB11, ABCC1, ABCC4, and ABCG2 and illustrate how kinases and protein-protein interactions affect these transporters. The clinical relevance of these factors is currently unknown; however, these examples suggest that our understanding of drug-drug interactions will benefit from further knowledge of how kinases and protein-protein interactions affect ABC transporters.
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Affiliation(s)
- Rebecca R Crawford
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Praveen K Potukuchi
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Erin G Schuetz
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - John D Schuetz
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee
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26
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Bircsak KM, Moscovitz JE, Wen X, Archer F, Yuen PYS, Mohammed M, Memon N, Weinberger BI, Saba LM, Vetrano AM, Aleksunes LM. Interindividual Regulation of the Breast Cancer Resistance Protein/ ABCG2 Transporter in Term Human Placentas. Drug Metab Dispos 2018; 46:619-627. [PMID: 29386232 DOI: 10.1124/dmd.117.079228] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Accepted: 01/25/2018] [Indexed: 01/16/2023] Open
Abstract
The breast cancer resistance protein (BCRP/ABCG2) is a maternally-facing efflux transporter that regulates the placental disposition of chemicals. Transcription factors and gene variants are important regulatory factors that influence transporter expression. In this study, we sought to identify the genetic and transcriptional mechanisms underlying the interindividual expression of BCRP mRNA and protein across 137 term placentas from uncomplicated pregnancies. Placental expression of BCRP and regulatory transcription factor mRNAs was measured using multiplex-branched DNA analysis. BCRP expression and ABCG2 genotypes were determined using Western blot and Fluidigm Biomark genetic analysis, respectively. Placentas were obtained from a racially and ethnically diverse population, including Caucasian (33%), African American (14%), Asian (14%), Hispanic (15%), and mixed (16%) backgrounds, as well as unknown origins (7%). Between placentas, BCRP mRNA and protein varied up to 47-fold and 14-fold, respectively. In particular, BCRP mRNA correlated significantly with known transcription factor mRNAs, including nuclear factor erythroid 2-related factor 2 and aryl hydrocarbon receptor. Somewhat surprisingly, single-nucleotide polymorphisms (SNPs) in the ABCG2 noncoding regions were not associated with variation in placental BCRP mRNA or protein. Instead, the coding region polymorphism (C421A/Q141K) corresponded with 40%-50% lower BCRP protein in 421C/A and 421A/A placentas compared with wild types (421C/C). Although BCRP protein and mRNA expression weakly correlated (r = 0.25, P = 0.040), this relationship was absent in individuals expressing the C421A variant allele. Study results contribute to our understanding of the interindividual regulation of BCRP expression in term placentas and may help to identify infants at risk for increased fetal exposure to chemicals due to low expression of this efflux protein.
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Affiliation(s)
- Kristin M Bircsak
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (K.M.B., J.E.M., X.W., L.M.A.), Environmental and Occupational Health Sciences Institute (L.M.A.), and Lipid Center (L.M.A.), Rutgers, The State University of New Jersey, Piscataway, New Jersey; Department of Pediatrics, Rutgers University Robert Wood Johnson Medical School, New Brunswick, New Jersey (F.A., P.Y.S.Y., M.M., N.M., A.M.V.); Hofstra Northwell School of Medicine, Cohen Children's Medical Center of New York, New Hyde Park, New York (B.I.W.); and Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado (L.M.S.)
| | - Jamie E Moscovitz
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (K.M.B., J.E.M., X.W., L.M.A.), Environmental and Occupational Health Sciences Institute (L.M.A.), and Lipid Center (L.M.A.), Rutgers, The State University of New Jersey, Piscataway, New Jersey; Department of Pediatrics, Rutgers University Robert Wood Johnson Medical School, New Brunswick, New Jersey (F.A., P.Y.S.Y., M.M., N.M., A.M.V.); Hofstra Northwell School of Medicine, Cohen Children's Medical Center of New York, New Hyde Park, New York (B.I.W.); and Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado (L.M.S.)
| | - Xia Wen
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (K.M.B., J.E.M., X.W., L.M.A.), Environmental and Occupational Health Sciences Institute (L.M.A.), and Lipid Center (L.M.A.), Rutgers, The State University of New Jersey, Piscataway, New Jersey; Department of Pediatrics, Rutgers University Robert Wood Johnson Medical School, New Brunswick, New Jersey (F.A., P.Y.S.Y., M.M., N.M., A.M.V.); Hofstra Northwell School of Medicine, Cohen Children's Medical Center of New York, New Hyde Park, New York (B.I.W.); and Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado (L.M.S.)
| | - Faith Archer
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (K.M.B., J.E.M., X.W., L.M.A.), Environmental and Occupational Health Sciences Institute (L.M.A.), and Lipid Center (L.M.A.), Rutgers, The State University of New Jersey, Piscataway, New Jersey; Department of Pediatrics, Rutgers University Robert Wood Johnson Medical School, New Brunswick, New Jersey (F.A., P.Y.S.Y., M.M., N.M., A.M.V.); Hofstra Northwell School of Medicine, Cohen Children's Medical Center of New York, New Hyde Park, New York (B.I.W.); and Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado (L.M.S.)
| | - Poi Yu Sofia Yuen
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (K.M.B., J.E.M., X.W., L.M.A.), Environmental and Occupational Health Sciences Institute (L.M.A.), and Lipid Center (L.M.A.), Rutgers, The State University of New Jersey, Piscataway, New Jersey; Department of Pediatrics, Rutgers University Robert Wood Johnson Medical School, New Brunswick, New Jersey (F.A., P.Y.S.Y., M.M., N.M., A.M.V.); Hofstra Northwell School of Medicine, Cohen Children's Medical Center of New York, New Hyde Park, New York (B.I.W.); and Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado (L.M.S.)
| | - Moiz Mohammed
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (K.M.B., J.E.M., X.W., L.M.A.), Environmental and Occupational Health Sciences Institute (L.M.A.), and Lipid Center (L.M.A.), Rutgers, The State University of New Jersey, Piscataway, New Jersey; Department of Pediatrics, Rutgers University Robert Wood Johnson Medical School, New Brunswick, New Jersey (F.A., P.Y.S.Y., M.M., N.M., A.M.V.); Hofstra Northwell School of Medicine, Cohen Children's Medical Center of New York, New Hyde Park, New York (B.I.W.); and Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado (L.M.S.)
| | - Naureen Memon
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (K.M.B., J.E.M., X.W., L.M.A.), Environmental and Occupational Health Sciences Institute (L.M.A.), and Lipid Center (L.M.A.), Rutgers, The State University of New Jersey, Piscataway, New Jersey; Department of Pediatrics, Rutgers University Robert Wood Johnson Medical School, New Brunswick, New Jersey (F.A., P.Y.S.Y., M.M., N.M., A.M.V.); Hofstra Northwell School of Medicine, Cohen Children's Medical Center of New York, New Hyde Park, New York (B.I.W.); and Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado (L.M.S.)
| | - Barry I Weinberger
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (K.M.B., J.E.M., X.W., L.M.A.), Environmental and Occupational Health Sciences Institute (L.M.A.), and Lipid Center (L.M.A.), Rutgers, The State University of New Jersey, Piscataway, New Jersey; Department of Pediatrics, Rutgers University Robert Wood Johnson Medical School, New Brunswick, New Jersey (F.A., P.Y.S.Y., M.M., N.M., A.M.V.); Hofstra Northwell School of Medicine, Cohen Children's Medical Center of New York, New Hyde Park, New York (B.I.W.); and Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado (L.M.S.)
| | - Laura M Saba
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (K.M.B., J.E.M., X.W., L.M.A.), Environmental and Occupational Health Sciences Institute (L.M.A.), and Lipid Center (L.M.A.), Rutgers, The State University of New Jersey, Piscataway, New Jersey; Department of Pediatrics, Rutgers University Robert Wood Johnson Medical School, New Brunswick, New Jersey (F.A., P.Y.S.Y., M.M., N.M., A.M.V.); Hofstra Northwell School of Medicine, Cohen Children's Medical Center of New York, New Hyde Park, New York (B.I.W.); and Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado (L.M.S.)
| | - Anna M Vetrano
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (K.M.B., J.E.M., X.W., L.M.A.), Environmental and Occupational Health Sciences Institute (L.M.A.), and Lipid Center (L.M.A.), Rutgers, The State University of New Jersey, Piscataway, New Jersey; Department of Pediatrics, Rutgers University Robert Wood Johnson Medical School, New Brunswick, New Jersey (F.A., P.Y.S.Y., M.M., N.M., A.M.V.); Hofstra Northwell School of Medicine, Cohen Children's Medical Center of New York, New Hyde Park, New York (B.I.W.); and Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado (L.M.S.)
| | - Lauren M Aleksunes
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (K.M.B., J.E.M., X.W., L.M.A.), Environmental and Occupational Health Sciences Institute (L.M.A.), and Lipid Center (L.M.A.), Rutgers, The State University of New Jersey, Piscataway, New Jersey; Department of Pediatrics, Rutgers University Robert Wood Johnson Medical School, New Brunswick, New Jersey (F.A., P.Y.S.Y., M.M., N.M., A.M.V.); Hofstra Northwell School of Medicine, Cohen Children's Medical Center of New York, New Hyde Park, New York (B.I.W.); and Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado (L.M.S.)
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27
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NFE2L2/NRF2 silencing-inducible miR-206 targets c-MET/EGFR and suppresses BCRP/ABCG2 in cancer cells. Oncotarget 2017; 8:107188-107205. [PMID: 29291022 PMCID: PMC5739807 DOI: 10.18632/oncotarget.22513] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 10/30/2017] [Indexed: 12/23/2022] Open
Abstract
The nuclear factor (erythroid-derived 2)-like 2 (NFE2L2/NRF2) plays a critical role in the expression of multiple antioxidant and detoxifying enzymes. Herein, we provide evidence of the molecular links between NRF2 and oncogenic signaling hepatocyte growth factor receptor (HGFR/c-MET) and epidermal growth factor receptor (EGFR). Interfering RNA-induced stable inhibition of NRF2 in ovarian carcinoma SKOV3 and renal carcinoma A498 reduced the levels of c-MET and EGFR. MicroRNA-206 (miR-206) that was increased in both NRF2-silenced cells was predicted as a dual regulator of c-MET and EGFR. As experimental evidence, miR-206 decreased c-MET and EGFR levels through a direct binding to the 3′-untranslated region of the c-MET and EGFR genes. The treatment of NRF2-knockdown cells with the miR-206 inhibitor could restore c-MET and EGFR levels. The miR-206-mediated c-MET/EGFR repression resulted in two outcomes. First, presumably through the inhibition of c-MET/EGFR-dependent cell proliferation, overexpression of miR-206 inhibited tumor growth in SKOV3-inoculated nude mice. Second, reduced c-MET/EGFR in NRF2-silenced cells affected breast cancer resistance protein (BCRP/ABCG2) levels. The pharmacological and genetic inhibition of c-MET or EGFR, as well as the miR-206 mimic treatment, repressed BCRP levels and increased cellular accumulation of doxorubicin. In line with these, treatment of NRF2-silenced SKOV3 with the miR-206 inhibitor elevated BCRP levels and consequently made these cells more resistant to doxorubicin treatment. Collectively, our results demonstrated that the NRF2 silencing-inducible miR-206 targeted both c-MET and EGFR, and subsequently suppressed the BCRP level in cancer cells.
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28
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Traxl A, Komposch K, Glitzner E, Wanek T, Mairinger S, Langer O, Sibilia M. Hepatocyte-Specific Deletion of EGFR in Mice Reduces Hepatic Abcg2 Transport Activity Measured by [ 11C]erlotinib and Positron Emission Tomography. Drug Metab Dispos 2017; 45:1093-1100. [PMID: 28790147 DOI: 10.1124/dmd.117.077081] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 08/04/2017] [Indexed: 01/03/2023] Open
Abstract
The epidermal growth factor receptor (EGFR) regulates cellular expression levels of breast cancer resistance protein (humans: ABCG2, rodents: Abcg2) via its downstream signaling pathways. Drugs that inhibit EGFR signaling (e.g., tyrosine kinase inhibitors, antibodies) may lead to ABCG2-mediated drug-drug interactions (DDIs) by changing the disposition of concomitantly administered ABCG2 substrate drugs. In this study, we used positron emission tomography and magnetic resonance imaging to compare disposition of the model Abcg2 substrate [11C]erlotinib in a mouse model of hepatocyte-specific deletion of EGFR (EGFR∆hep mice, n = 5) with EGFRfl/fl control mice (n = 6), which have normal EGFR expression levels in all tissues. Integration plot analysis was used to estimate the rate constants for transfer of radioactivity from the liver into bile (kbile) and from the kidney into urine (kurine). EGFR∆hep mice showed significantly lower radioactivity concentrations in the intestine (1.6-fold) and higher radioactivity concentrations in the urinary bladder (3.2-fold) compared with EGFRfl/fl mice. Kbile was significantly decreased (3.0-fold) in EGFR∆hep mice, whereas kurine was by 2.2-fold increased. Western blot analysis of liver tissue confirmed deletion of EGFR and showed significant decreases in Abcg2 and increases in P-glycoprotein (Abcb1a/b) expression levels in EGFR∆hep versus EGFRfl/fl mice. Our data show that EGFR deletion in hepatocytes leads to a reduction in Abcg2-mediated hepatobiliary clearance of a probe substrate accompanied by a shift to renal excretion of the drug, which raises the possibility that EGFR-inhibiting drugs may cause ABCG2-mediated DDIs.
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Affiliation(s)
- Alexander Traxl
- Center for Health and Bioresources, Biomedical Systems, AIT Austrian Institute of Technology GmbH, Seibersdorf, Austria (A.T., T.W., S.M., O.L.); Institute of Cancer Research, Department of Medicine I, Comprehensive Cancer Center (K.K., E.G., M.S.); Department of Clinical Pharmacology (O.L.) and Department of Biomedical Imaging and Image-Guided Therapy, Division of Nuclear Medicine (O.L.), Medical University of Vienna, Vienna, Austria
| | - Karin Komposch
- Center for Health and Bioresources, Biomedical Systems, AIT Austrian Institute of Technology GmbH, Seibersdorf, Austria (A.T., T.W., S.M., O.L.); Institute of Cancer Research, Department of Medicine I, Comprehensive Cancer Center (K.K., E.G., M.S.); Department of Clinical Pharmacology (O.L.) and Department of Biomedical Imaging and Image-Guided Therapy, Division of Nuclear Medicine (O.L.), Medical University of Vienna, Vienna, Austria
| | - Elisabeth Glitzner
- Center for Health and Bioresources, Biomedical Systems, AIT Austrian Institute of Technology GmbH, Seibersdorf, Austria (A.T., T.W., S.M., O.L.); Institute of Cancer Research, Department of Medicine I, Comprehensive Cancer Center (K.K., E.G., M.S.); Department of Clinical Pharmacology (O.L.) and Department of Biomedical Imaging and Image-Guided Therapy, Division of Nuclear Medicine (O.L.), Medical University of Vienna, Vienna, Austria
| | - Thomas Wanek
- Center for Health and Bioresources, Biomedical Systems, AIT Austrian Institute of Technology GmbH, Seibersdorf, Austria (A.T., T.W., S.M., O.L.); Institute of Cancer Research, Department of Medicine I, Comprehensive Cancer Center (K.K., E.G., M.S.); Department of Clinical Pharmacology (O.L.) and Department of Biomedical Imaging and Image-Guided Therapy, Division of Nuclear Medicine (O.L.), Medical University of Vienna, Vienna, Austria
| | - Severin Mairinger
- Center for Health and Bioresources, Biomedical Systems, AIT Austrian Institute of Technology GmbH, Seibersdorf, Austria (A.T., T.W., S.M., O.L.); Institute of Cancer Research, Department of Medicine I, Comprehensive Cancer Center (K.K., E.G., M.S.); Department of Clinical Pharmacology (O.L.) and Department of Biomedical Imaging and Image-Guided Therapy, Division of Nuclear Medicine (O.L.), Medical University of Vienna, Vienna, Austria
| | - Oliver Langer
- Center for Health and Bioresources, Biomedical Systems, AIT Austrian Institute of Technology GmbH, Seibersdorf, Austria (A.T., T.W., S.M., O.L.); Institute of Cancer Research, Department of Medicine I, Comprehensive Cancer Center (K.K., E.G., M.S.); Department of Clinical Pharmacology (O.L.) and Department of Biomedical Imaging and Image-Guided Therapy, Division of Nuclear Medicine (O.L.), Medical University of Vienna, Vienna, Austria
| | - Maria Sibilia
- Center for Health and Bioresources, Biomedical Systems, AIT Austrian Institute of Technology GmbH, Seibersdorf, Austria (A.T., T.W., S.M., O.L.); Institute of Cancer Research, Department of Medicine I, Comprehensive Cancer Center (K.K., E.G., M.S.); Department of Clinical Pharmacology (O.L.) and Department of Biomedical Imaging and Image-Guided Therapy, Division of Nuclear Medicine (O.L.), Medical University of Vienna, Vienna, Austria
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Caetano-Pinto P, Jamalpoor A, Ham J, Goumenou A, Mommersteeg M, Pijnenburg D, Ruijtenbeek R, Sanchez-Romero N, van Zelst B, Heil SG, Jansen J, Wilmer MJ, van Herpen CML, Masereeuw R. Cetuximab Prevents Methotrexate-Induced Cytotoxicity in Vitro through Epidermal Growth Factor Dependent Regulation of Renal Drug Transporters. Mol Pharm 2017; 14:2147-2157. [PMID: 28493713 PMCID: PMC5462489 DOI: 10.1021/acs.molpharmaceut.7b00308] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
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The combination of methotrexate with
epidermal growth factor receptor
(EGFR) recombinant antibody, cetuximab, is currently being investigated
in treatment of head and neck carcinoma. As methotrexate is cleared
by renal excretion, we studied the effect of cetuximab on renal methotrexate
handling. We used human conditionally immortalized proximal tubule
epithelial cells overexpressing either organic anion transporter 1
or 3 (ciPTEC-OAT1/ciPTEC-OAT3) to examine OAT1 and OAT3, and the efflux
pumps breast cancer resistance protein (BCRP), multidrug resistance
protein 4 (MRP4), and P-glycoprotein (P-gp) in methotrexate handling
upon EGF or cetuximab treatment. Protein kinase microarrays and knowledge-based
pathway analysis were used to predict EGFR-mediated transporter regulation.
Cytotoxic effects of methotrexate were evaluated using the dimethylthiazol
bromide (MTT) viability assay. Methotrexate inhibited OAT-mediated
fluorescein uptake and decreased efflux of Hoechst33342 and glutathione-methylfluorescein
(GS-MF), which suggested involvement of OAT1/3, BCRP, and MRP4 in
transepithelial transport, respectively. Cetuximab reversed the EGF-increased
expression of OAT1 and BCRP as well as their membrane expressions
and transport activities, while MRP4 and P-gp were increased. Pathway
analysis predicted cetuximab-induced modulation of PKC and PI3K pathways
downstream EGFR/ERBB2/PLCg. Pharmacological inhibition of ERK decreased
expression of OAT1 and BCRP, while P-gp and MRP4 were increased. AKT
inhibition reduced all transporters. Exposure to methotrexate for
24 h led to a decreased viability, an effect that was reversed by
cetuximab. In conclusion, cetuximab downregulates OAT1 and BCRP while
upregulating P-gp and MRP4 through an EGFR-mediated regulation of
PI3K-AKT and MAPKK-ERK pathways. Consequently, cetuximab attenuates
methotrexate-induced cytotoxicity, which opens possibilities for further
research into nephroprotective comedication therapies.
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Affiliation(s)
- Pedro Caetano-Pinto
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University , 3584 CG Utrecht, The Netherlands
| | - Amer Jamalpoor
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University , 3584 CG Utrecht, The Netherlands
| | - Janneke Ham
- Department of Oncology, Radboud University Medical Center , 6525 GA Nijmegen, The Netherlands
| | - Anastasia Goumenou
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University , 3584 CG Utrecht, The Netherlands
| | | | | | | | - Natalia Sanchez-Romero
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University , 3584 CG Utrecht, The Netherlands.,Centro Investigación Biomédica de Aragón (CIBA), 50009 Zaragoza, Spain
| | - Bertrand van Zelst
- Department of Clinical Chemistry, ErasmusMC , 3015 CE Rotterdam, The Netherlands
| | - Sandra G Heil
- Department of Clinical Chemistry, ErasmusMC , 3015 CE Rotterdam, The Netherlands
| | - Jitske Jansen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University , 3584 CG Utrecht, The Netherlands
| | - Martijn J Wilmer
- Department of Pharmacology and Toxicology, Radboud Institute of Molecular Life Sciences, Radboudumc , 6500 HB Nijmegen, The Netherlands
| | - Carla M L van Herpen
- Department of Oncology, Radboud University Medical Center , 6525 GA Nijmegen, The Netherlands
| | - Rosalinde Masereeuw
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University , 3584 CG Utrecht, The Netherlands
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30
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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: 84] [Impact Index Per Article: 12.0] [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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31
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Ma C, Wang J, Fan L, Guo Y. Inhibition of CD147 expression promotes chemosensitivity in HNSCC cells by deactivating MAPK/ERK signaling pathway. Exp Mol Pathol 2017; 102:59-64. [PMID: 28062212 DOI: 10.1016/j.yexmp.2017.01.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 01/02/2017] [Accepted: 01/02/2017] [Indexed: 10/20/2022]
Abstract
Head and neck squamous cell carcinoma (HNSCC) is one of the most common cancers in the world. CD147, a transmembrane glycoprotein, has been reported to be correlated with cancer progression, metastasis, and chemoresistance in various cancers. In this study, we aimed to investigate the mechanism of CD147 in regulating drug resistance in HNSCC cells. qRT-PCR were used to evaluated the expression of CD147 in 57 HNSCC tumorous tissues and 2 cell lines. Increased expression of CD147 was found in most HNSCC samples, and the expression level of CD147 was correlated with multidrug resistance. CD147 RNA silencing decreased the chemoresistance of HNSCC cells by deactivating MAPK/ERK signaling pathway. Further investigation revealed that either rescue expression of CD147 or treatment of MAPK/ERK activator phorbol 12-myristate 13-acetate (PMA) in CD147 knockdown CRC cell line attenuated the decreased chemoresistance in CD147 knockdown cells. Taken together, our results suggest that CD147 promotes chemoresistance by activating MAPK/ERK signaling pathway in HNSCC.
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Affiliation(s)
- Chao Ma
- Department of oral and maxillofacial surgery, Cangzhou central hospital of Hebei province, Cangzhou 061001, China
| | - Jianqi Wang
- Department of oral and maxillofacial surgery, Cangzhou central hospital of Hebei province, Cangzhou 061001, China
| | - Longkun Fan
- Department of oral and maxillofacial surgery, Cangzhou central hospital of Hebei province, Cangzhou 061001, China
| | - Yanjun Guo
- Department of oral and maxillofacial surgery, Cangzhou central hospital of Hebei province, Cangzhou 061001, China.
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Sieppi E, Vähäkangas K, Rautio A, Ietta F, Paulesu L, Myllynen P. The xenoestrogens, bisphenol A and para-nonylphenol, decrease the expression of the ABCG2 transporter protein in human term placental explant cultures. Mol Cell Endocrinol 2016; 429:41-9. [PMID: 27036933 DOI: 10.1016/j.mce.2016.03.034] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 02/25/2016] [Accepted: 03/28/2016] [Indexed: 11/30/2022]
Abstract
Many endogenous and xenobiotic compounds are substrates and regulators of human placental ABC transporters. ABCG2 is protecting fetus against foreign chemicals. Environmental xenoestrogens, like bisphenol A (BPA) and p-nonylphenol (p-NP), mimic natural estrogens and can affect hormonal systems. Effects of BPA, p-NP, DES (diethylstilbestrol) and estradiol (E2), on ABCG2 expression were studied using human first trimester and term placental explants. Role of estrogen receptors (ER) in the effects of chemicals was studied by ER antagonist. Term placenta expressed less ABCG2 protein. In term placentas BPA (p < 0.05), p-NP (p < 0.01) and E2 (p < 0.05) decreased the ABCG2 protein expression after 48 h exposure while after 24 h exposure, only E2 decreased the expression (p < 0.05). The chemicals did not affect ABCG2 in first trimester placentas. The ER antagonist affected differently the responses of chemicals. In conclusion, environmental xenoestrogens downregulate placental ABCG2 protein expression depending on gestational age.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily G, Member 2/genetics
- ATP Binding Cassette Transporter, Subfamily G, Member 2/metabolism
- Benzhydryl Compounds/toxicity
- Cells, Cultured
- Chorionic Villi/drug effects
- Chorionic Villi/metabolism
- Diethylstilbestrol/toxicity
- Down-Regulation/drug effects
- Estrogens/toxicity
- Female
- Humans
- Phenols/toxicity
- Placenta/drug effects
- Placenta/metabolism
- Pregnancy
- Pregnancy Trimester, First/metabolism
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Receptors, Estrogen/antagonists & inhibitors
- Receptors, Estrogen/metabolism
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Affiliation(s)
- E Sieppi
- Research Unit of Biomedicine, Pharmacology and Toxicology, University of Oulu, P.O. Box 5000, 90014, University of Oulu, Oulu, Finland; Centre for Arctic Medicine, Thule Institute, University of Oulu, P.O. Box 7300, 90014, University of Oulu, Oulu, Finland.
| | - K Vähäkangas
- Faculty of Health Sciences, School of Pharmacy/Toxicology, University of Eastern Finland, P.O. Box 1627, 70211, Kuopio, Finland.
| | - A Rautio
- Centre for Arctic Medicine, Thule Institute, University of Oulu, P.O. Box 7300, 90014, University of Oulu, Oulu, Finland.
| | - F Ietta
- Department of Life Sciences, University of Siena, Via Aldo Moro 2, 53100, Siena, Italy.
| | - L Paulesu
- Department of Life Sciences, University of Siena, Via Aldo Moro 2, 53100, Siena, Italy.
| | - P Myllynen
- Centre for Arctic Medicine, Thule Institute, University of Oulu, P.O. Box 7300, 90014, University of Oulu, Oulu, Finland; Nordlab Oulu, P.O. Box 500, 90029, OYS, Oulu, Finland.
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Fujita S, Kashiwagi H, Tomimatsu T, Ito S, Mimura K, Kanagawa T, Endo M, Miyoshi T, Okamura Y, Tani Y, Tomiyama Y, Kimura T. Expression levels of ABCG2 on cord red blood cells and study of fetal anemia associated with anti-Jra. Transfusion 2016; 56:1171-81. [DOI: 10.1111/trf.13515] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 12/22/2015] [Accepted: 12/30/2015] [Indexed: 01/01/2023]
Affiliation(s)
| | | | | | - Shoichi Ito
- Tohoku Block Blood Center, Japanese Red Cross; Miyagi
| | | | | | | | - Tomomitsu Miyoshi
- Department of Integrative Physiology, Graduate School of Medicine; Osaka University; Osaka
| | - Yasushi Okamura
- Department of Integrative Physiology, Graduate School of Medicine; Osaka University; Osaka
| | - Yoshihiko Tani
- Kinki Block Blood Center, Japanese Red Cross; Osaka Japan
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34
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Hyun DS, Kim JD, Park JH, Park SJ, Song CH, Ku SK. Effects of Bojungikkitang (a Polyherbal Formula), on Gefitinib Pharmacokinetics in Rats. INT J PHARMACOL 2015. [DOI: 10.3923/ijp.2015.604.610] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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35
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Xie Y, Nakanishi T, Natarajan K, Safren L, Hamburger AW, Hussain A, Ross DD. Functional cyclic AMP response element in the breast cancer resistance protein (BCRP/ABCG2) promoter modulates epidermal growth factor receptor pathway- or androgen withdrawal-mediated BCRP/ABCG2 transcription in human cancer cells. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2015; 1849:317-27. [PMID: 25615818 DOI: 10.1016/j.bbagrm.2015.01.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 12/19/2014] [Accepted: 01/13/2015] [Indexed: 10/24/2022]
Abstract
Phosphorylated cyclic-AMP (cAMP) response element binding protein (p-CREB) is a downstream effector of a variety of important signaling pathways. We investigated whether the human BCRP promoter contains a functional cAMP response element (CRE). 8Br-cAMP, a cAMP analogue, increased the activity of a BCRP promoter reporter construct and BCRP mRNA in human carcinoma cells. Epidermal growth factor receptor (EGFR) pathway activation also led to an increase in p-CREB and in BCRP promoter reporter activity via two major downstream EGFR signaling pathways: the phosphotidylinositol-3-kinase (PI3K)/AKT pathway and the mitogen-activated protein kinase (MAPK) pathway. EGF treatment increased the phosphorylation of EGFR, AKT, ERK and CREB, while simultaneously enhancing BCRP mRNA and functional protein expression. EGF-stimulated CREB phosphorylation and BCRP induction were diminished by inhibition of EGFR, PI3K/AKT or RAS/MAPK signaling. CREB silencing using RNA interference reduced basal levels of BCRP mRNA and diminished the induction of BCRP by EGF. Chromatin immunoprecipitation assays confirmed that a putative CRE site on the BCRP promoter bound p-CREB by a point mutation of the CRE site abolished EGF-induced stimulation of BCRP promoter reporter activity. Furthermore, the CREB co-activator, cAMP-regulated transcriptional co-activator (CRTC2), is involved in CREB-mediated BCRP transcription: androgen depletion of LNCaP human prostate cancer cells increased both CREB phosphorylation and CRTC2 nuclear translocation, and enhanced BCRP expression. Silencing CREB or CRTC2 reduced basal BCRP expression and BCRP induction under androgen-depletion conditions. This novel CRE site plays a central role in mediating BCRP gene expression in several human cancer cell lines following activation of multiple cancer-relevant signaling pathways.
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Affiliation(s)
- Yi Xie
- Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Takeo Nakanishi
- Department of Membrane Transport and Biopharmaceutics, School of Pharmaceutical Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Karthika Natarajan
- Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Lowell Safren
- Schnaper Summer Internship Program, University of Maryland Greenebaum Cancer Center, USA
| | - Anne W Hamburger
- Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Department of Pathology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Arif Hussain
- Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Department of Pathology, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Baltimore VA Medical Center, Baltimore, MD 21201, USA
| | - Douglas D Ross
- Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Department of Pathology, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Baltimore VA Medical Center, Baltimore, MD 21201, USA; Department of Pharmacology and Experimental Therapeutics, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
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36
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Staud F, Ceckova M. Regulation of drug transporter expression and function in the placenta. Expert Opin Drug Metab Toxicol 2015; 11:533-55. [DOI: 10.1517/17425255.2015.1005073] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Abstract
Primary brain tumors occur in around 250,000 people per year globally. Survival rates in primary brain tumors depend on the type of tumor, patient's age, the extent of surgical tumor removal, and other factors. Photodynamic diagnosis (PDD) is a practical tool currently used in surgical operation of aggressive brain tumors, such as glioblastoma and meningiomas, whereas clinical application of photodynamic therapy (PDT) to brain tumor therapy has just recently started. Both PDD and PDT are achieved by a photon-induced physicochemical reaction, which is induced by the excitation of porphyrins exposed to light. In fluorescence-guided gross-total resection, PDD can be achieved by the administration of 5-aminolevulinic acid (5-ALA) as the precursor of protoporphyrin IX (PpIX). Exogenously administered ALA induces biosynthesis and accumulation of PpIX, a natural photosensitizer, in cancer cells. However, ATP-binding cassette transporter ABCG2 plays a critical role in regulating the cellular accumulation of porphyrins in cancer cells and thereby its expression and function can affect the efficacy of PDD and PDT. In response to the photoreaction of porphyrins leading to oxidative stress, the nuclear factor erythroid-derived 2-related transcription factor can transcriptionally upregulate ABCG2, which may reduce the efficacy of PDD and PDT. On the other hand, certain protein kinase inhibitors potentially enhance the efficacy of PDD and PDT by blocking ABCG2-mediated porphyrin efflux from cancer cells. In this context, it is of great interest to develop ABCG2 inhibitors that can be applied to PDD or PDT for the therapy of brain tumor and other tumors.
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38
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Lu Y, Nakanishi T, Hosomi A, Komori H, Tamai I. In-vitro evidence of enhanced breast cancer resistance protein-mediated intestinal urate secretion by uremic toxins in Caco-2 cells. ACTA ACUST UNITED AC 2014; 67:170-7. [PMID: 25515305 DOI: 10.1111/jphp.12328] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Accepted: 09/09/2014] [Indexed: 12/30/2022]
Abstract
OBJECTIVES It has been reported that intestinal urate excretion is increased at chronic kidney disease (CKD) state. In this report, whether uremic toxins are involved in the upregulation of intestinal breast cancer resistance protein (BCRP), an intestinal urate exporter, was examined. METHODS Uremic toxins that were increased at least 15-fold at CKD state were selected for investigation. Caco-2 cells were exposed to these uremic toxins at clinically relevant concentrations. mRNA was quantified by real-time PCR, and flow cytometry was utilized to measure BCRP protein and function in Caco-2 cells. Transcellular secretory transport of [(14) C]urate was determined utilizing Transwell studies after uremic toxin exposure. KEY FINDINGS Indoxyl sulfate (IS) treatment alone resulted in ∼ 3-fold increase in BCRP mRNA in Caco-2 cells. Membrane protein expression of BCRP in Caco-2 cells also was increased by 1.8-fold after treatment with IS. Intracellular accumulation of pheophorbide A, a selective BCRP substrate, was decreased by 22% after IS treatment for 3 days. Consistent with these findings, transcellular secretory transport of urate across Caco-2 cell monolayers was increased by 22%. CONCLUSION Intestinal urate secretion may be increased at CKD state partially by upregulation of intestinal BCRP by uremic toxins such as IS.
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Affiliation(s)
- Yang Lu
- Department of Membrane Transport and Biopharmaceutics, Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
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39
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Jebbink J, Veenboer G, Boussata S, Keijser R, Kremer AE, Elferink RO, van der Post J, Afink G, Ris-Stalpers C. Total bile acids in the maternal and fetal compartment in relation to placental ABCG2 expression in preeclamptic pregnancies complicated by HELLP syndrome. Biochim Biophys Acta Mol Basis Dis 2014; 1852:131-6. [PMID: 25446997 DOI: 10.1016/j.bbadis.2014.11.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 10/17/2014] [Accepted: 11/05/2014] [Indexed: 12/28/2022]
Abstract
OBJECTIVE To investigate total bile acid (TBA) levels in maternal (MB) and umbilical cord blood (UCB) in normotensive, preeclamptic (PE), and PE pregnancies complicated by hemolysis elevated liver enzymes and low platelets (HELLP) syndrome in the context of ABCG2 placental gene expression levels, a recently reported placental bile acid transporter. METHODS TBA levels were determined in 83 paired MB and UCB samples of normotensive, PE and PE/HELLP pregnancies and in 22 paired arterial and venous UCB samples from uncomplicated term pregnancies. ABCG2 gene expression was measured in 104 human placentas by reverse transcriptase quantitative polymerase chain reaction. RESULTS Overall, TBA levels in MB are higher compared to levels in UCB (p<0.0001), but this comparison looses statistical significance for the 11 PE/HELLP cases. TBA levels in maternal blood are increased in PE/HELLP compared to PE pregnancies (p=0.016). TBA levels in arterial and venous UCB from 22 normotensive pregnancies are not statistically different. ABCG2 expression is reduced in pregnancies where preeclampsia is further complicated by HELLP syndrome. ABCG2 expression in human placenta is not correlated with TBA levels in either the maternal or fetal compartment. CONCLUSION Increased maternal TBA levels in PE/HELLP pregnancies indicate a relation between bile acids in the maternal circulation and HELLP syndrome. As overall TBA levels in maternal blood are increased compared to UCB, we conclude that the placenta partly protects the fetus from increased maternal TBA levels. This consistent difference in TBA levels between the maternal and fetal compartment is unrelated to the placental expression of ABCG2.
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Affiliation(s)
- Jiska Jebbink
- Women's and Children's Clinic, Academic Medical Center, University of Amsterdam, PO Box 22660, Amsterdam 1100 DD, The Netherlands; Department of Obstetrics and Gynaecology, Onze Lieve Vrouwe Gasthuis, PO Box 95500, Amsterdam 1090 HM, The Netherlands.
| | - Geertruda Veenboer
- Reproductive Biology Laboratory, Academic Medical Center, University of Amsterdam, PO Box 22660, Amsterdam 1100 DD, The Netherlands
| | - Souad Boussata
- Reproductive Biology Laboratory, Academic Medical Center, University of Amsterdam, PO Box 22660, Amsterdam 1100 DD, The Netherlands
| | - Remco Keijser
- Reproductive Biology Laboratory, Academic Medical Center, University of Amsterdam, PO Box 22660, Amsterdam 1100 DD, The Netherlands
| | - Andreas E Kremer
- Department of Medicine 1, Friedrich-Alexander-University of Erlangen-Nuremberg, Ulmenweg 18, Erlangen 91054, Germany
| | - Ronald Oude Elferink
- Tytgat Institute for Liver and Intestinal Research, Department of Gastroenterology and Hepatology, Academic Medical Center, University of Amsterdam, PO Box 22660, Amsterdam 1100 DD, The Netherlands
| | - Joris van der Post
- Women's and Children's Clinic, Academic Medical Center, University of Amsterdam, PO Box 22660, Amsterdam 1100 DD, The Netherlands
| | - Gijs Afink
- Reproductive Biology Laboratory, Academic Medical Center, University of Amsterdam, PO Box 22660, Amsterdam 1100 DD, The Netherlands
| | - Carrie Ris-Stalpers
- Women's and Children's Clinic, Academic Medical Center, University of Amsterdam, PO Box 22660, Amsterdam 1100 DD, The Netherlands; Reproductive Biology Laboratory, Academic Medical Center, University of Amsterdam, PO Box 22660, Amsterdam 1100 DD, The Netherlands
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Ishikawa T. Genetic polymorphism in the NRF2 gene as a prognosis marker for cancer chemotherapy. Front Genet 2014; 5:383. [PMID: 25408701 PMCID: PMC4219421 DOI: 10.3389/fgene.2014.00383] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 10/17/2014] [Indexed: 12/26/2022] Open
Abstract
NF-E2-related factor 2 (NRF2) is a transcription factor that controls the expression of a variety of antioxidant and detoxification genes. Accumulating evidence strongly suggests that NRF2 mediates cancer cell proliferation and drug resistance, as well. Single nucleotide polymorphism (SNP) -617C > A in the anti-oxidant response element-like loci of the human NRF2 gene play a pivotal role in the positive feedback loop of transcriptional activation of the NRF2 gene. Since the SNP (-617A) reportedly decreases the binding affinity to the transcription factors of NRF2/small multiple alignment format (MafK), the homozygous -617A/A allele may attenuate the positive feedback loop of transcriptional activation of the NRF2 gene and reduce the NRF2 protein level. As the consequence, cancer cells are considered to become more sensitive to therapy and less aggressive than cancer cells harboring the -617C (WT) allele. Indeed, Japanese lung cancer patients carrying SNP homozygous alleles (c. -617A/A) exhibited remarkable survival over 1,700 days after surgical operation (log-rank p = 0.021). The genetic polymorphism in the human NRF2 gene is considered as one of prognosis markers for cancer therapy.
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Affiliation(s)
- Toshihisa Ishikawa
- Personalized Medicine Research Institute, NGO Personalized Medicine and Healthcare, Yokohama Japan ; RIKEN Center for Life Science Technologies, Yokohama Japan
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Akour AA, Gerk P, Kennedy MJ. Megalin expression in human term and preterm placental villous tissues: effect of gestational age and sample processing and storage time. J Pharmacol Toxicol Methods 2014; 71:147-54. [PMID: 25304941 DOI: 10.1016/j.vascn.2014.10.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Accepted: 10/03/2014] [Indexed: 11/16/2022]
Abstract
INTRODUCTION The aims of this study were to characterize megalin expression in human term and preterm placental villous tissues and to assess the impact of gestational age and sample storage on receptor expression. METHODS Placental tissue samples were collected from pregnant women undergoing term and preterm Cesarean deliveries. Placental villous tissues were used to quantify megalin protein and mRNA expression by western blotting and quantitative polymerase chain reaction (q-PCR), respectively. Stability of megalin expression was also evaluated under various processing and storage conditions. RESULTS Megalin mRNA was detected in term and preterm placental villous tissues. Expression in early preterm samples was 6-fold higher than in late preterm and term samples. Refrigeration of processed term samples at 4°C for up to 18h had a slight impact on megalin mRNA expression with stored samples exhibiting mRNA levels approximately 1.5-fold lower than those frozen immediately after processing. A greater decrease in mRNA expression (up to 33-fold) was observed when processed samples were snap-frozen immediately and thawed at 4°C. Processing of samples prior to refrigeration also appeared to improve mRNA stability with significantly higher expression levels noted in processed vs. unprocessed samples at all points for up to 48h. DISCUSSION These data suggest that expression of megalin mRNA in term placental villous tissue is relatively stable for up to 18h when samples are processed immediately and refrigerated at 4°C prior to freezing. Processing prior to storage also appears to improve mRNA stability. This paper demonstrates the practical feasibility of analyzing stored tissue samples, thus, it will help with placental mRNA analysis. Additionally, megalin expression appears to vary inversely with gestational age with the greatest expression noted in the most premature samples. Age-dependent differences in placental megalin may therefore influence fetal exposure.
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Affiliation(s)
- Amal A Akour
- Department of Pharmacotherapy and Outcomes Science, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, United States
| | - Phillip Gerk
- Department of Pharmaceutics, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, United States
| | - Mary Jayne Kennedy
- Department of Pharmacotherapy and Outcomes Science, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, United States.
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Sui H, Zhu L, Deng W, Li Q. Epithelial-mesenchymal transition and drug resistance: role, molecular mechanisms, and therapeutic strategies. Oncol Res Treat 2014; 37:584-9. [PMID: 25342509 DOI: 10.1159/000367802] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 07/31/2014] [Indexed: 11/19/2022]
Abstract
Chemotherapy is an important therapeutic option for most cancer patients; however, one major obstacle is the occurrence of drug resistance which usually leads to failure of the chemotherapy. Emerging evidence suggests that there are intricate links between epithelial-mesenchymal transition (EMT)-type cells and drug resistance in tumors. The process of drug resistance can be regulated by a diverse array of cytokines and growth factors, higher apoptotic threshold, aerobic glycolysis, regions of hypoxia, and elevated activity of drug efflux transporters. Moreover, recent reports have indicated that the emergence of drug resistance may occur as a result of EMT. In this regard, most drug-resistant cancers contain a subpopulation of cells with stem-like and mesenchymal features that are resistant to chemotherapy. In this review, we will explain potential mechanisms for the association between EMT induction and the emergence of drug resistance, and discuss new approaches and drugs for the clinical management of drug-resistant cancer induced by EMT.
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Affiliation(s)
- Hua Sui
- Department of Medical Oncology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Abstract
ATP-binding cassette (ABC) transporters in placenta protectively transport drugs and xenobiotics. ABCB5 [subfamily B (MDR/TAP)] is a novel ABC multidrug-resistance transporter that also mediates cell fusion, stem cell function, and vasculogenic plasticity. Immunohistochemistry and double-labeling immunofluorescence staining for ABCB5 and ABCB5/CD200, respectively, was performed on formalin-fixed, paraffin-embedded placental tissue from 5 first trimester, 5 second trimester, and 5 term pregnancies as well as 5 partial moles, and 5 complete moles. In addition, tumor cells from 5 choriocarcinoma and 5 placental site trophoblastic tumor cases were examined. ABCB5 staining was observed in villous trophoblasts in 100% (5/5) of first trimester placentas (with progressive decrease in term placentas); 100% of partial moles (5/5); and 100% of complete moles (5/5). Notably, reactivity was discretely restricted to the inner trophoblast layer, with no staining of overlying syncytiotrophoblast. Antibody specificity and localization was confirmed further by in situ hybridization. ABCB5 expression was retained in 20% of choriocarcinomas (1/5) and 40% of placental site trophoblastic tumors (2/5). Prior studies have localized expression of multidrug-resistance-1, also known as ABCB1, within the syncytiotrophoblast of early placentas, where it serves a protective function as an efflux transporter. Our results show that ABCB5 is preferentially expressed in the cytotrophoblast layer of placental villi. The expression of this novel biomarker at the maternal-fetal interface raises questions on its role in placental structure and function as well as on its potential contribution to the protective efflux provided by other P-glycoprotein transporters.
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Shuster DL, Risler LJ, Liang CKJ, Rice KM, Shen DD, Hebert MF, Thummel KE, Mao Q. Maternal-fetal disposition of glyburide in pregnant mice is dependent on gestational age. J Pharmacol Exp Ther 2014; 350:425-34. [PMID: 24898265 DOI: 10.1124/jpet.114.213470] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Gestational diabetes mellitus is a major complication of human pregnancy. The oral clearance (CL) of glyburide, an oral antidiabetic drug, increases 2-fold in pregnant women during late gestation versus nonpregnant controls. In this study, we examined gestational age-dependent changes in maternal-fetal pharmacokinetics (PK) of glyburide and metabolites in a pregnant mouse model. Nonpregnant and pregnant FVB mice were given glyburide by retro-orbital injection. Maternal plasma was collected over 240 minutes on gestation days (gd) 0, 7.5, 10, 15, and 19; fetuses were collected on gd 15 and 19. Glyburide and metabolites were quantified using high-performance liquid chromatography-mass spectrometry, and PK analyses were performed using a pooled data bootstrap approach. Maternal CL of glyburide increased approximately 2-fold on gd 10, 15, and 19 compared with nonpregnant controls. Intrinsic CL of glyburide in maternal liver microsomes also increased as gestation progressed. Maternal metabolite/glyburide area under the curve ratios were generally unchanged or slightly decreased throughout gestation. Total fetal exposure to glyburide was <5% of maternal plasma exposure, and was doubled on gd 19 versus gd 15. Fetal metabolite concentrations were below the limit of assay detection. This is the first evidence of gestational age-dependent changes in glyburide PK. Increased maternal glyburide clearance during gestation is attributable to increased hepatic metabolism. Metabolite elimination may also increase during pregnancy. In the mouse model, fetal exposure to glyburide is gestational age-dependent and low compared with maternal plasma exposure. These results indicate that maternal glyburide therapeutic strategies may require adjustments in a gestational age-dependent manner if these same changes occur in humans.
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Affiliation(s)
- Diana L Shuster
- Departments of Pharmaceutics (D.L.S., L.J.R., D.D.S., K.E.T., Q.M.) and Pharmacy (D.D.S., M.F.H.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Biostatistics, School of Public Health, University of Washington, Seattle, Washington (C.-K.J.L., K.M.R.); and Department of Obstetrics and Gynecology, School of Medicine (M.F.H.), University of Washington, Seattle, Washington
| | - Linda J Risler
- Departments of Pharmaceutics (D.L.S., L.J.R., D.D.S., K.E.T., Q.M.) and Pharmacy (D.D.S., M.F.H.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Biostatistics, School of Public Health, University of Washington, Seattle, Washington (C.-K.J.L., K.M.R.); and Department of Obstetrics and Gynecology, School of Medicine (M.F.H.), University of Washington, Seattle, Washington
| | - Chao-Kang J Liang
- Departments of Pharmaceutics (D.L.S., L.J.R., D.D.S., K.E.T., Q.M.) and Pharmacy (D.D.S., M.F.H.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Biostatistics, School of Public Health, University of Washington, Seattle, Washington (C.-K.J.L., K.M.R.); and Department of Obstetrics and Gynecology, School of Medicine (M.F.H.), University of Washington, Seattle, Washington
| | - Kenneth M Rice
- Departments of Pharmaceutics (D.L.S., L.J.R., D.D.S., K.E.T., Q.M.) and Pharmacy (D.D.S., M.F.H.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Biostatistics, School of Public Health, University of Washington, Seattle, Washington (C.-K.J.L., K.M.R.); and Department of Obstetrics and Gynecology, School of Medicine (M.F.H.), University of Washington, Seattle, Washington
| | - Danny D Shen
- Departments of Pharmaceutics (D.L.S., L.J.R., D.D.S., K.E.T., Q.M.) and Pharmacy (D.D.S., M.F.H.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Biostatistics, School of Public Health, University of Washington, Seattle, Washington (C.-K.J.L., K.M.R.); and Department of Obstetrics and Gynecology, School of Medicine (M.F.H.), University of Washington, Seattle, Washington
| | - Mary F Hebert
- Departments of Pharmaceutics (D.L.S., L.J.R., D.D.S., K.E.T., Q.M.) and Pharmacy (D.D.S., M.F.H.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Biostatistics, School of Public Health, University of Washington, Seattle, Washington (C.-K.J.L., K.M.R.); and Department of Obstetrics and Gynecology, School of Medicine (M.F.H.), University of Washington, Seattle, Washington
| | - Kenneth E Thummel
- Departments of Pharmaceutics (D.L.S., L.J.R., D.D.S., K.E.T., Q.M.) and Pharmacy (D.D.S., M.F.H.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Biostatistics, School of Public Health, University of Washington, Seattle, Washington (C.-K.J.L., K.M.R.); and Department of Obstetrics and Gynecology, School of Medicine (M.F.H.), University of Washington, Seattle, Washington
| | - Qingcheng Mao
- Departments of Pharmaceutics (D.L.S., L.J.R., D.D.S., K.E.T., Q.M.) and Pharmacy (D.D.S., M.F.H.), School of Pharmacy, University of Washington, Seattle, Washington; Department of Biostatistics, School of Public Health, University of Washington, Seattle, Washington (C.-K.J.L., K.M.R.); and Department of Obstetrics and Gynecology, School of Medicine (M.F.H.), University of Washington, Seattle, Washington
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Structure and function of BCRP, a broad specificity transporter of xenobiotics and endobiotics. Arch Toxicol 2014; 88:1205-48. [DOI: 10.1007/s00204-014-1224-8] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 03/06/2014] [Indexed: 12/20/2022]
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Javam M, Audette MC, Iqbal M, Bloise E, Gibb W, Matthews SG. Effect of oxygen on multidrug resistance in term human placenta. Placenta 2014; 35:324-30. [PMID: 24685282 DOI: 10.1016/j.placenta.2014.02.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 02/10/2014] [Accepted: 02/23/2014] [Indexed: 11/19/2022]
Abstract
INTRODUCTION The placenta contains efflux transporters, including P-glycoprotein (P-gp) and breast cancer resistance protein (BCRP), that limit the passage of xenobiotics, certain hormones and nutrients from the maternal to the fetal circulation. The expression of these transporters changes with gestational age, yet the mechanisms involved remain unknown. However, the changes in P-gp and BCRP transporter expression coincide with those of oxygen tension in the placenta, and oxygen tension has been shown to modulate P-gp and BCRP expression in other tissues. The objective of this study was to investigate the effects of oxygen tension on P-gp and BCRP expression in the term human placenta. METHODS Following equilibration in culture (96 h), term placental explants (n = 7) were cultured in 3% or 20% oxygen for 24 and 48 h. Culture medium was collected every 24 h to measure lactate dehydrogenase (LDH; explant viability) and human chorionic gonadotropin (hCG; syncytiotrophoblast function). P-gp (encoded by ABCB1) and BCRP (encoded by ABCG2) protein and mRNA, as well as VEGFA mRNA were measured using western blot and qRT-PCR. P-gp localization was determined using immunofluorescence. RESULTS Oxygen tension had a significant effect on P-gp expression, with ABCB1/P-gp mRNA and protein levels increased in the hypoxic condition (3% O2) after 48 h (p < 0.05). VEGFA mRNA was elevated by hypoxia at both 24 and 48 h (p < 0.05). In contrast, placental ABCG2/BCRP mRNA and protein expression were stable with changes in oxygen tension. We identified profound differences in the glycosylation of P-gp between cultured and non-cultured placental tissue, with cultured explants expressing deglycosylated P-gp. CONCLUSIONS These findings demonstrate that, at term, the expression of placental P-gp, is regulated by oxygen tension. This suggests that changes in oxygenation of the placenta in the third trimester may alter levels of placental P-gp, and in doing so alter fetal exposure to P-gp substrates, including xenobiotics and certain hormones.
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Affiliation(s)
- M Javam
- Department of Physiology, University of Toronto, Toronto, Canada
| | - M C Audette
- Department of Physiology, University of Toronto, Toronto, Canada
| | - M Iqbal
- Department of Physiology, University of Toronto, Toronto, Canada
| | - E Bloise
- Department of Physiology, University of Toronto, Toronto, Canada
| | - W Gibb
- Dept Ob-Gyn, University of Ottawa, Ottawa, Canada; Dept Cellular & Molecular Medicine, University of Ottawa, Ottawa, Canada
| | - S G Matthews
- Department of Physiology, University of Toronto, Toronto, Canada; Department of Ob-Gyn, University of Toronto, Toronto, Canada; Department of Medicine, University of Toronto, Toronto, Canada; Fraser Mustard Institute for Human Development, University of Toronto, Toronto, Canada.
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Huang W, Wan C, Luo Q, Huang Z, Luo Q. Genistein-inhibited cancer stem cell-like properties and reduced chemoresistance of gastric cancer. Int J Mol Sci 2014; 15:3432-43. [PMID: 24573253 PMCID: PMC3975346 DOI: 10.3390/ijms15033432] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Revised: 02/12/2014] [Accepted: 02/13/2014] [Indexed: 02/07/2023] Open
Abstract
Genistein, the predominant isoflavone found in soy products, has exerted its anticarcinogenic effect in many different tumor types in vitro and in vivo. Accumulating evidence in recent years has strongly indicated the existence of cancer stem cells in gastric cancer. Here, we showed that low doses of genistein (15 µM), extracted from Millettia nitida Benth var hirsutissima Z Wei, inhibit tumor cell self-renewal in two types of gastric cancer cells by colony formation assay and tumor sphere formation assay. Treatment of gastric cancer cells with genistein reduced its chemoresistance to 5-Fu (fluorouracil) and ciplatin. Further results indicated that the reduced chemoresistance may be associated with the inhibition of ABCG2 expression and ERK 1/2 activity. Furthermore, genistein reduced tumor mass in the xenograft model. Together, genistein inhibited gastric cancer stem cell-like properties and reduced its chemoresistance. Our results provide a further rationale and experimental basis for using the genistein to improve treatment of patients with gastric cancer.
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Affiliation(s)
- Weifeng Huang
- Department of Surgical Oncology, First Affiliated Hospital of Xiamen University & Xiamen Cancer Center, Xiamen 361003, Fujian, China.
| | - Chunpeng Wan
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits & Vegetables, College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, Jiangxi, China.
| | - Qicong Luo
- Department of Surgical Oncology, First Affiliated Hospital of Xiamen University & Xiamen Cancer Center, Xiamen 361003, Fujian, China.
| | - Zhengjie Huang
- Department of Surgical Oncology, First Affiliated Hospital of Xiamen University & Xiamen Cancer Center, Xiamen 361003, Fujian, China.
| | - Qi Luo
- Department of Surgical Oncology, First Affiliated Hospital of Xiamen University & Xiamen Cancer Center, Xiamen 361003, Fujian, China.
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Zamora-Olivares D, Kaoud TS, Dalby KN, Anslyn EV. In-situ generation of differential sensors that fingerprint kinases and the cellular response to their expression. J Am Chem Soc 2013; 135:14814-20. [PMID: 23991633 DOI: 10.1021/ja407397z] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Mitogen-activated protein (MAP) kinases are responsible for many cellular functions, and their malfunction manifests itself in several human diseases. Usually, monitoring the phosphorylation states of MAP kinases in vitro requires the preparation and purification of the proteins or Western blotting. Herein, we report an array sensing approach for the differentiation of MAP kinases and their phosphorylated counterparts in vitro. This technique utilizes a library of differential receptors created in situ containing peptides known for affinity to MAP kinases, and a Zn(II)-dipicolylamine complex that binds phosphate groups on proteins. An indicator-displacement assay signals the binding of the individual receptors to the kinases, while chemometrics is used to create a fingerprint for the kinases and their state of activity. For example, linear discriminant analysis correctly identified kinase activity with a classification accuracy of 97.5% in vitro, while the cellular response to kinase expression was classified with 100% accuracy.
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Affiliation(s)
- Diana Zamora-Olivares
- Department of Chemistry and Biochemistry and ‡Division of Medicinal Chemistry, The University of Texas at Austin , Austin, Texas 78712, United States
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Okano Y, Nezu U, Enokida Y, Lee MTM, Kinoshita H, Lezhava A, Hayashizaki Y, Morita S, Taguri M, Ichikawa Y, Kaneko T, Natsumeda Y, Yokose T, Nakayama H, Miyagi Y, Ishikawa T. SNP (-617C>A) in ARE-like loci of the NRF2 gene: a new biomarker for prognosis of lung adenocarcinoma in Japanese non-smoking women. PLoS One 2013; 8:e73794. [PMID: 24040073 PMCID: PMC3770684 DOI: 10.1371/journal.pone.0073794] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2013] [Accepted: 07/26/2013] [Indexed: 12/30/2022] Open
Abstract
Purpose The transcription factor NRF2 plays a pivotal role in protecting normal cells from external toxic challenges and oxidative stress, whereas it can also endow cancer cells resistance to anticancer drugs. At present little information is available about the genetic polymorphisms of the NRF2 gene and their clinical relevance. We aimed to investigate the single nucleotide polymorphisms in the NRF2 gene as a prognostic biomarker in lung cancer. Experimental Design We prepared genomic DNA samples from 387 Japanese patients with primary lung cancer and detected SNP (c.–617C>A; rs6721961) in the ARE-like loci of the human NRF2 gene by the rapid genetic testing method we developed in this study. We then analyzed the association between the SNP in the NRF2 gene and patients’ overall survival. Results Patients harboring wild-type (WT) homozygous (c.–617C/C), SNP heterozygous (c.–617C/A), and SNP homozygous (c.–617A/A) alleles numbered 216 (55.8%), 147 (38.0%), and 24 (6.2%), respectively. Multivariate logistic regression models revealed that SNP homozygote (c.–617A/A) was significantly related to gender. Its frequency was four-fold higher in female patients than in males (10.8% female vs 2.7% male) and was associated with female non-smokers with adenocarcinoma. Interestingly, lung cancer patients carrying NRF2 SNP homozygous alleles (c.–617A/A) and the 309T (WT) allele in the MDM2 gene exhibited remarkable survival over 1,700 days after surgical operation (log-rank p = 0.021). Conclusion SNP homozygous (c.–617A/A) alleles in the NRF2 gene are associated with female non-smokers with adenocarcinoma and regarded as a prognostic biomarker for assessing overall survival of patients with lung adenocarcinoma.
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Affiliation(s)
- Yasuko Okano
- Omics Science Center, RIKEN Yokohama Institute, Yokohama, Japan
- Department of Clinical Oncology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Uru Nezu
- Omics Science Center, RIKEN Yokohama Institute, Yokohama, Japan
- Department of Clinical Pharmacology and Therapeutics, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Yasuaki Enokida
- Omics Science Center, RIKEN Yokohama Institute, Yokohama, Japan
- Division of Thoracic and Visceral Organ Surgery, Gunma University Graduate School of Medicine, Maehashi, Japan
| | - Ming Ta Michael Lee
- Laboratory for International Alliance on Genomic Research, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | | | | | | | - Satoshi Morita
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Masataka Taguri
- Department of Biostatistics and Epidemiology, Yokohama City University Medical Center, Yokohama, Japan
| | - Yasushi Ichikawa
- Department of Clinical Oncology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Takeshi Kaneko
- Omics Science Center, RIKEN Yokohama Institute, Yokohama, Japan
- Respiratory Disease Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Yutaka Natsumeda
- Department of Clinical Research, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tomoyuki Yokose
- Department of Pathology, Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Haruhiko Nakayama
- Department of Thoracic Surgery, Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Yohei Miyagi
- Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Toshihisa Ishikawa
- Omics Science Center, RIKEN Yokohama Institute, Yokohama, Japan
- * E-mail:
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Pavek P, Smutny T. Nuclear receptors in regulation of biotransformation enzymes and drug transporters in the placental barrier. Drug Metab Rev 2013; 46:19-32. [PMID: 24020384 DOI: 10.3109/03602532.2013.835819] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Over the past 20 years, the toxicological and protective roles of the placental barrier with respect to drug detoxification and transporter-controlled protection of the fetus have been intensively examined. Several cytochrome P450 enzymes are expressed in placental trophoblast at different stages of pregnancy, though only a few of these have functional activity to metabolize xenobiotics. Drug transporters such as P-glycoprotein/MDR1 or breast cancer resistance protein (BCRP) are highly expressed in the placenta, and their functional activities have been demonstrated in the placenta both in vitro and in vivo. In addition, several studies have reported on ligand-activated transcription factors and nuclear receptors referred to as "xenosensors" in the placenta. The xenosensors control transcriptional regulation of both xenobiotic-metabolizing enzymes and drug transporters in different organs. Their ligands include toxic compounds and environmental pollutants, drugs, as well as herbal, dietary or vitamin supplements. Nevertheless, it remains debatable whether the placental barrier adapts to toxic injuries coming either from maternal medication or environmental contamination and whether the placenta contains a mechanism to respond dynamically in protecting the developing fetus. In the present paper, we summarize current knowledge about the activity and expression of major ligand-activated transcriptional mechanisms involved in biotransformation enzymes and transporters regulation in human placenta. In particular, we highlight the emerging roles of aryl hydrocarbon (AHR), vitamin D (VDR), glucocorticoid (GR) and pregnane X (PXR) receptors in that regulation. We show that the placenta constitute a unique metabolizing organ with significant overlap of exogenous and endogenous compounds metabolism controlled by nuclear receptors.
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Affiliation(s)
- Petr Pavek
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Centre for Drug Development, Charles University in Prague , Hradec Kralove , Czech Republic
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