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Cho YS, Do MH, Duong Thanh H, Moon C, Kim K, Cho SH, Kim H, Ha HH, Jung C. A heptamethine cyanine dye serves as a potential marker for myeloid-derived suppressor cells. Am J Cancer Res 2021; 11:2853-2866. [PMID: 34249432 PMCID: PMC8263665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 04/25/2021] [Indexed: 06/13/2023] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) are a heterogeneous population of immature myeloid cells with inhibitory effects on T cell-mediated immune response. MDSCs accumulate under many pathological conditions, including cancers, to avoid anticancer immunity. Unlike mouse MDSCs, common specific surface markers for human MDSCs are not clearly defined, mainly due to the complexity of MDSC subsets. In this study, we investigate specific responses of the infrared dye MHI-148 to MDSCs. Mice bearing 4T1 breast cancer cells were established, and splenocytes were isolated. Flow cytometric analyses demonstrated that MHI-148 was reactive to over 80% of MDSC-specific cells manifesting CD11b+/Gr-1+ acquired from both tumor-bearing mice and naive mice. Cells sorted positive for either CD11b/Gr-1 or MHI-148 were also identical to their counterparts (99.7% and 97.7%, respectively). MHI-148, however, was not reactive to lymphocyte or monocyte populations. To determine whether MHI-148-reactive cells exert inhibitory effects on T cell proliferation, an EdU-based T cell assay was performed. MHI-148 reactive cells significantly reduced T cell proliferation with increased arginase activity and nitrite production. In an attempt to test MHI-148 as a marker for human MDSCs, MHI-148 was specifically reactive to CD11b+/CD33+/CD14- granulocytic MDSCs acquired from selected cancer patients. This study demonstrates that the near-infrared dye MHI-148 specifically reacts to mouse splenocytes with known MDSC-specific markers that have T cell suppressive functions. The dye also selectively binds to a subpopulation of immature myeloid cells acquired from cancer patients. While it is not clear how MHI-148 specifically stains MDSCs, this dye can be a novel tool to detect MDSCs and to predict the prognosis of human cancer patients.
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Affiliation(s)
- Young-Suk Cho
- Department of Anatomy, Chonnam National University Medical SchoolGwangju 61469, Korea
| | - Manh-Hung Do
- Department of Anatomy, Chonnam National University Medical SchoolGwangju 61469, Korea
| | - Hien Duong Thanh
- Department of Anatomy, Chonnam National University Medical SchoolGwangju 61469, Korea
| | - Changjong Moon
- College of Veterinary Medicine, Chonnam National UniversityGwangju 61186, Korea
| | - Kwonseop Kim
- College of Pharmacy, Chonnam National UniversityGwangju, Korea
| | - Sang-Hee Cho
- Department of Hemato-Oncology, Chonnam National University Medical SchoolGwangju 61469, Korea
| | - Hangun Kim
- College of Pharmacy, Sunchon National UniversitySunchon, Jeonnam 57922, Korea
| | - Hyung-Ho Ha
- College of Pharmacy, Sunchon National UniversitySunchon, Jeonnam 57922, Korea
| | - Chaeyong Jung
- Department of Anatomy, Chonnam National University Medical SchoolGwangju 61469, Korea
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2
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Sutherland R, Meeson A, Lowes S. Solute transporters and malignancy: establishing the role of uptake transporters in breast cancer and breast cancer metastasis. Cancer Metastasis Rev 2021; 39:919-932. [PMID: 32388639 PMCID: PMC7497311 DOI: 10.1007/s10555-020-09879-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The solute carrier (SLC) superfamily encompasses a large variety of membrane-bound transporters required to transport a diverse array of substrates over biological membranes. Physiologically, they are essential for nutrient uptake, ion transport and waste removal. However, accumulating evidence suggest that up- and/or downregulation of SLCs may play a pivotal role in the pathogenesis of human malignancy. Endogenous substrates of SLCs include oestrogen and its conjugates, the handling of which may be of importance in hormone-dependent cancers. The SLCs play a significant role in the handling of therapeutic agents including anticancer drugs. Differential SLC expression in cancers may, therefore, impact on the efficacy of treatments. However, there is also a small body of evidence to suggest the dysregulated expression of some of these transporters may be linked to cancer metastasis. This review draws on the current knowledge of the roles of SLC transporters in human cancers in order to highlight the potential significance of these solute carriers in breast cancer pathogenesis and treatment. Graphical abstract ![]()
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Affiliation(s)
- Rachel Sutherland
- Biosciences Institute, Newcastle University, International Centre for Life, Central Parkway, Newcastle Upon Tyne, UK. .,Translational and Clinical Research Institute, Medical School, Newcastle University, Framlington Place, Newcastle Upon Tyne, UK.
| | - Annette Meeson
- Biosciences Institute, Newcastle University, International Centre for Life, Central Parkway, Newcastle Upon Tyne, UK
| | - Simon Lowes
- Translational and Clinical Research Institute, Medical School, Newcastle University, Framlington Place, Newcastle Upon Tyne, UK.,Breast Screening and Assessment Unit, Queen Elizabeth Hospital, Gateshead Health NHS Foundation Trust, Gateshead, Sheriff Hill, UK
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3
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Al-Abdulla R, Perez-Silva L, Abete L, Romero MR, Briz O, Marin JJG. Unraveling ‘The Cancer Genome Atlas’ information on the role of SLC transporters in anticancer drug uptake. Expert Rev Clin Pharmacol 2019; 12:329-341. [DOI: 10.1080/17512433.2019.1581605] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ruba Al-Abdulla
- Experimental Hepatology and Drug Targeting (HEVEFARM), University of Salamanca, IBSAL, Salamanca, Spain
| | - Laura Perez-Silva
- Experimental Hepatology and Drug Targeting (HEVEFARM), University of Salamanca, IBSAL, Salamanca, Spain
| | - Lorena Abete
- Department of Physiology and Pharmacology, Sapienza University of Rome, Rome, Italy
| | - Marta R. Romero
- Experimental Hepatology and Drug Targeting (HEVEFARM), University of Salamanca, IBSAL, Salamanca, Spain
- Center for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Carlos III National Institute of Health, Madrid, Spain
| | - Oscar Briz
- Experimental Hepatology and Drug Targeting (HEVEFARM), University of Salamanca, IBSAL, Salamanca, Spain
- Center for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Carlos III National Institute of Health, Madrid, Spain
| | - Jose J. G. Marin
- Experimental Hepatology and Drug Targeting (HEVEFARM), University of Salamanca, IBSAL, Salamanca, Spain
- Center for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Carlos III National Institute of Health, Madrid, Spain
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Svoboda M, Mungenast F, Gleiss A, Vergote I, Vanderstichele A, Sehouli J, Braicu E, Mahner S, Jäger W, Mechtcheriakova D, Cacsire-Tong D, Zeillinger R, Thalhammer T, Pils D. Clinical Significance of Organic Anion Transporting Polypeptide Gene Expression in High-Grade Serous Ovarian Cancer. Front Pharmacol 2018; 9:842. [PMID: 30131693 PMCID: PMC6090214 DOI: 10.3389/fphar.2018.00842] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Accepted: 07/13/2018] [Indexed: 12/31/2022] Open
Abstract
High-grade serous ovarian cancer (HGSOC) is considered the most deadly and frequently occurring type of ovarian cancer and is associated with various molecular compositions and growth patterns. Evaluating the mRNA expression pattern of the organic anion transporters (OATPs) encoded by SLCO genes may allow for improved stratification of HGSOC patients for targeted invention. The expression of SLCO mRNA and genes coding for putative functionally related ABC-efflux pumps, enzymes, pregnane-X-receptor, ESR1 and ESR2 (coding for estrogen receptors ERα and ERß) and HER-2 were assessed using RT-qPCR. The expression levels were assessed in a cohort of 135 HGSOC patients to elucidate the independent impact of the expression pattern on the overall survival (OS). For identification of putative regulatory networks, Graphical Gaussian Models were constructed from the expression data with a tuning parameter K varying between meaningful borders (Pils et al., 2012; Auer et al., 2015, 2017; Kurman and Shih Ie, 2016; Karam et al., 2017; Labidi-Galy et al., 2017; Salomon-Perzynski et al., 2017; Sukhbaatar et al., 2017). The final value used (K = 4) was determined by maximizing the proportion of explained variation of the corresponding LASSO Cox regression model for OS. The following two networks of directly correlated genes were identified: (i) SLCO2B1 with ABCC3 implicated in estrogen homeostasis; and (ii) two ABC-efflux pumps in the immune regulation (ABCB2/ABCB3) with ABCC3 and HER-2. Combining LASSO Cox regression and univariate Cox regression analyses, SLCO5A1 coding for OATP5A1, an estrogen metabolite transporter located in the cytoplasm and plasma membranes of ovarian cancer cells, was identified as significant and independent prognostic factor for OS (HR = 0.68, CI 0.49-0.93; p = 0.031). Furthermore, results indicated the benefits of patients with high expression by adding 5.1% to the 12.8% of the proportion of explained variation (PEV) for clinicopathological parameters known for prognostic significance (FIGO stage, age and residual tumor after debulking). Additionally, overlap with previously described signatures that indicated a more favorable prognosis for ovarian cancer patients was shown for SLCO5A1, the network ABCB2/ABCB3/ABCC4/HER2 as well as ESR1. Furthermore, expression of SLCO2A1 and PGDH, which are important for PGE2 degradation, was associated with the non-miliary peritoneal tumor spreading. In conclusion, the present findings suggested that SLCOs and the related molecules identified as potential biomarkers in HGSOC may be useful for the development of novel therapeutic strategies.
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Affiliation(s)
- Martin Svoboda
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Felicitas Mungenast
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Andreas Gleiss
- Institute of Clinical Biometrics, Center for Medical Statistics, Informatics, and Intelligent Systems, Medical University of Vienna, Vienna, Austria
| | - Ignace Vergote
- Division of Gynaecological Oncology, Department of Gynaecology and Obstetrics, Leuven Cancer Institute, University Hospital Leuven, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Adriaan Vanderstichele
- Division of Gynaecological Oncology, Department of Gynaecology and Obstetrics, Leuven Cancer Institute, University Hospital Leuven, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Jalid Sehouli
- Department of Gynecology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Berlin Institute of Health, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Elena Braicu
- Department of Gynecology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Berlin Institute of Health, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Sven Mahner
- Department of Gynecology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Walter Jäger
- Department of Clinical Pharmacy and Diagnostics, University of Vienna, Vienna, Austria
| | - Diana Mechtcheriakova
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Dan Cacsire-Tong
- Translational Gynecology Group, Department of Obstetrics and Gynaecology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Robert Zeillinger
- Molecular Oncology Group, Department of Obstetrics and Gynaecology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Theresia Thalhammer
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Dietmar Pils
- Institute of Clinical Biometrics, Center for Medical Statistics, Informatics, and Intelligent Systems, Medical University of Vienna, Vienna, Austria.,Department of Surgery, Medical University of Vienna, Vienna, Austria
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Affiliation(s)
- Eleni Kotsampasakou
- University of Vienna; Department of Pharmaceutical Chemistry; Althanstrasse 14 1090 Vienna Austria
| | - Gerhard F. Ecker
- University of Vienna; Department of Pharmaceutical Chemistry; Althanstrasse 14 1090 Vienna Austria
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6
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Kovacsics D, Patik I, Özvegy-Laczka C. The role of organic anion transporting polypeptides in drug absorption, distribution, excretion and drug-drug interactions. Expert Opin Drug Metab Toxicol 2016; 13:409-424. [PMID: 27783531 DOI: 10.1080/17425255.2017.1253679] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
INTRODUCTION The in vivo fate and effectiveness of a drug depends highly on its absorption, distribution, metabolism, excretion and toxicity (ADME-Tox). Organic anion transporting polypeptides (OATPs) are membrane proteins involved in the cellular uptake of various organic compounds, including clinically used drugs. Since OATPs are significant players in drug absorption and distribution, modulation of OATP function via pharmacotherapy with OATP substrates/inhibitors, or modulation of their expression, affects drug pharmacokinetics. Given their cancer-specific expression, OATPs may also be considered anticancer drug targets. Areas covered: We describe the human OATP family, discussing clinically relevant consequences of altered OATP function. We offer a critical analysis of published data on the role of OATPs in ADME and in drug-drug interactions, especially focusing on OATP1A2, 1B1, 1B3 and 2B1. Expert opinion: Four members of the OATP family, 1A2, 1B1, 1B3 and 2B1, have been characterized in detail. As biochemical and pharmacological knowledge on the other OATPs is lacking, it seems timely to direct research efforts towards developing the experimental framework needed to investigate the transport mechanism and substrate specificity of the poorly described OATPs. In addition, elucidating the role of OATPs in tumor development and therapy response are critical avenues for further research.
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Affiliation(s)
- Daniella Kovacsics
- a Membrane protein research group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences , Budapest , Hungary
| | - Izabel Patik
- a Membrane protein research group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences , Budapest , Hungary
| | - Csilla Özvegy-Laczka
- a Membrane protein research group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences , Budapest , Hungary
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7
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Patik I, Kovacsics D, Német O, Gera M, Várady G, Stieger B, Hagenbuch B, Szakács G, Özvegy-Laczka C. Functional expression of the 11 human Organic Anion Transporting Polypeptides in insect cells reveals that sodium fluorescein is a general OATP substrate. Biochem Pharmacol 2015; 98:649-58. [PMID: 26415544 DOI: 10.1016/j.bcp.2015.09.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 09/17/2015] [Indexed: 11/29/2022]
Abstract
Organic Anion Transporting Polypeptides (OATPs), encoded by genes of the Solute Carrier Organic Anion (SLCO) family, are transmembrane proteins involved in the uptake of various compounds of endogenous or exogenous origin. In addition to their physiological roles, OATPs influence the pharmacokinetics and drug-drug interactions of several clinically relevant compounds. To examine the function and molecular interactions of human OATPs, including several poorly characterized family members, we expressed all 11 human OATPs at high levels in the baculovirus-Sf9 cell system. We measured the temperature- and inhibitor-sensitive cellular accumulation of sodium fluorescein and fluorescein-methotrexate, two fluorescent substrates of the OATPs, OATP1B1 and 1B3. OATP1B1 and 1B3 were functional in Sf9 cells, showing rapid uptake (t1/2(fluorescein-methotrexate) 2.64 and 4.16 min, and t1/2(fluorescein) 6.71 and 5.58 min for OATP1B1 and 1B3, respectively) and high-affinity transport (Km(fluorescein-methotrexate) 0.23 and 0.53 μM, and Km(fluorescein) 25.73 and 38.55 μM for OATP1B1 and 1B3, respectively) of both substrates. We found that sodium fluorescein is a general substrate of all human OATPs: 1A2, 1B1, 1B3, 1C1, 2A1, 2B1, 3A1, 4A1, 4C1, 5A1 and 6A1, while fluorescein-methotrexate is only transported by 1B1, 1B3, 1A2 and 2B1. Acidic extracellular pH greatly facilitated fluorescein uptake by all OATPs, and new molecular interactions were detected (between OATP2B1 and Imatinib, OATP3A1, 5A1 and 6A1 and estradiol 17-β-d-glucuronide, and OATP1C1 and 4C1 and prostaglandin E2). These studies demonstrate, for the first time, that the insect cell system is suitable for the functional analysis of the entire human OATP family, and for drug-OATP interaction screening.
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Affiliation(s)
- Izabel Patik
- Momentum Membrane Protein Research Group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2, H-1117 Budapest, Hungary
| | - Daniella Kovacsics
- Momentum Membrane Protein Research Group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2, H-1117 Budapest, Hungary
| | - Orsolya Német
- Momentum Membrane Protein Research Group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2, H-1117 Budapest, Hungary
| | - Melinda Gera
- Momentum Membrane Protein Research Group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2, H-1117 Budapest, Hungary
| | - György Várady
- Laboratory of Molecular Cell Biology, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2, H-1117 Budapest, Hungary
| | - Bruno Stieger
- Department of Clinical Pharmacology and Toxicology, University Hospital, 8091 Zurich, Switzerland
| | - Bruno Hagenbuch
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KA 66160, USA
| | - Gergely Szakács
- Momentum Membrane Protein Research Group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2, H-1117 Budapest, Hungary
| | - Csilla Özvegy-Laczka
- Momentum Membrane Protein Research Group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2, H-1117 Budapest, Hungary.
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Bi HX, Shi HB, Zhang T, Cui G. PRDM14 promotes the migration of human non-small cell lung cancer through extracellular matrix degradation in vitro. Chin Med J (Engl) 2015; 128:373-7. [PMID: 25635434 PMCID: PMC4837869 DOI: 10.4103/0366-6999.150109] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Background: As a novel molecular markerof non-small cell lung cancer (NSCLC), PRDI-BF1 and RIZ homology domain containing protein 14 (PRDM14) is over-expressed in NSCLC tumor tissues. Extracellular matrix degradation mediated by the balance between matrix metalloproteinases (MMPs) and tissue inhibitor of metalloproteinases (TIMPs) is one of the most important mechanism in lung cancer metastasis. This study aimed to determine if PRDM14 promoted the migration of NSCLC cells through extracellular matrix degradation mediated by change of MMP/TIMP expression. Methods: The expression of PRDM14 was down-regulated in human cell line A 549 after transfection with lentiviral vector-mediated short-hairpin ribonucleic acids (shRNAs) which targeted the PRDM14 promoter. Cellular migration of shRNA-infected cells was detected by a scratch wound healing assay and transwell cell migration assay. Expression levels of MMP1, MMP2, TIMP1, and TIMP2 were measured by quantitative real-time polymerase chain reaction (RT-PCR). Results: Migration of PRDM14-shRNA-infected cells was significantly inhibited relative to control cells as measured by the scratch wound healing (P < 0.05) and transwell cell migration assays (P < 0.01). The expression of MMP1 in A549 cells infected by PRDM14-shRNA was down-regulated significantly (P < 0.01), whereas the expression of TIMP1 and TIMP2 was up-regulated significantly (P < 0.01). Conclusions: PRDM14 accelerates A549 cells migration in vitro through extracellular matrix degradation. PRDM14 is considered as a potential therapeutic target in metastatic NSCLC.
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Affiliation(s)
| | | | - Ting Zhang
- Department of Pathology, Program in Molecular and Translational Medicine, School of Medicine, Huzhou University, Huzhou, Zhejiang 313000, China
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Testa A, Zanda M, Elmore CS, Sharma P. PET Tracers To Study Clinically Relevant Hepatic Transporters. Mol Pharm 2015; 12:2203-16. [DOI: 10.1021/acs.molpharmaceut.5b00059] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Andrea Testa
- Kosterlitz
Centre for Therapeutics, School of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, U.K
| | - Matteo Zanda
- Kosterlitz
Centre for Therapeutics, School of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, U.K
| | | | - Pradeep Sharma
- AstraZeneca R&D, Cambridge Science Park, Milton Road, Cambridge CB4 0WG, U.K
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10
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Thakkar N, Lockhart AC, Lee W. Role of Organic Anion-Transporting Polypeptides (OATPs) in Cancer Therapy. AAPS JOURNAL 2015; 17:535-45. [PMID: 25735612 DOI: 10.1208/s12248-015-9740-x] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Accepted: 02/11/2015] [Indexed: 12/31/2022]
Abstract
The superfamily of organic anion-transporting polypeptides (OATPs, gene symbol SLCO) includes important transporters handling a variety of endogenous and xenobiotic substrates. Currently, 11 human OATPs are known and their substrates include endogenous hormones and their conjugates, anticancer drugs, and imaging agents. The contribution of OATPs to the in vivo disposition of these substrates has been extensively investigated. An accumulating body of evidence also indicates that the expression of some OATPs may be up- or downregulated in several types of cancers, suggesting potential pathogenic roles during the development and progression of cancer. Given that the role of OATPs in handling cancer therapeutics has been already covered by several excellent reviews, this review will focus on the recent progresses on the topic, in particular the role of OATPs in the disposition of anticancer drugs, the impact of OATP genetic variations on the function of OATPs, and the OATPs differentially expressed in cancer and their potential roles in cancer development, progression, and treatment.
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Affiliation(s)
- Nilay Thakkar
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, Kentucky, USA
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11
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Nakanishi T, Tamai I. Putative roles of organic anion transporting polypeptides (OATPs) in cell survival and progression of human cancers. Biopharm Drug Dispos 2014; 35:463-84. [DOI: 10.1002/bdd.1915] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 08/01/2014] [Accepted: 08/12/2014] [Indexed: 01/19/2023]
Affiliation(s)
- Takeo Nakanishi
- Department of Membrane Transport and Biopharmaceutics, Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences; Kanazawa University; Kakuma-machi Kanazawa 920-1192 Japan
| | - Ikumi Tamai
- Department of Membrane Transport and Biopharmaceutics, Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences; Kanazawa University; Kakuma-machi Kanazawa 920-1192 Japan
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Brenner S, Klameth L, Riha J, Schölm M, Hamilton G, Bajna E, Ausch C, Reiner A, Jäger W, Thalhammer T, Buxhofer-Ausch V. Specific expression of OATPs in primary small cell lung cancer (SCLC) cells as novel biomarkers for diagnosis and therapy. Cancer Lett 2014; 356:517-24. [PMID: 25301452 DOI: 10.1016/j.canlet.2014.09.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 09/16/2014] [Accepted: 09/25/2014] [Indexed: 12/27/2022]
Abstract
The expression of organic anion transporting polypeptides (OATPs) was elucidated in cell lines from small cell lung cancer (SCLC) and lung carcinoids and in paraffin-embedded samples from primary and metastatic SCLCs. We found a strong relationship between OATP expression and the origin of the cells, as cells from primary or metastatic SCLC and carcinoid tumors differ with respect to OATP levels. OATP4A1 is most prominent in non-malignant lung tissue and in all SCLC and carcinoid cell lines and tissues, OATP5A1 is most prominent in metastatic cells, and OATP6A1 is most prominent in SCLC cell lines and tumors. Treatment with topotecan, etoposide and cisplatin caused significant changes in the expression patterns of OATP4A1, OATP5A1, OATP6A1, chromogranin and synaptophysin. This effect was also evident in GLC-14 cells from an untreated SCLC patient before chemotherapy compared to GLC-16/-19 chemoresistant tumor cells from this patient after therapy. mRNA expression of OATP4A1, 5A1 and 6A1 correlates with protein expression as confirmed by quantitative microscopic image analysis and Western blots. OATPs might be novel biomarkers for tumor progression and the development of metastasis in SCLC patients.
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Affiliation(s)
- Stefan Brenner
- Department of Clinical Pharmacy and Diagnostics, University of Vienna, Vienna, Austria
| | - Lukas Klameth
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria; Cluster for Translational Oncology, Ludwig Boltzmann Society, Vienna, Austria
| | - Juliane Riha
- Department of Clinical Pharmacy and Diagnostics, University of Vienna, Vienna, Austria
| | - Madeleine Schölm
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Gerhard Hamilton
- Cluster for Translational Oncology, Ludwig Boltzmann Society, Vienna, Austria
| | - Erika Bajna
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Christoph Ausch
- Department of Surgery, Donauspital, Vienna, Austria; Cluster for Translational Oncology, Ludwig Boltzmann Society, Vienna, Austria
| | - Angelika Reiner
- Cluster for Translational Oncology, Ludwig Boltzmann Society, Vienna, Austria; Department of Pathology, Donauspital, Vienna, Austria
| | - Walter Jäger
- Department of Clinical Pharmacy and Diagnostics, University of Vienna, Vienna, Austria
| | - Theresia Thalhammer
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria.
| | - Veronika Buxhofer-Ausch
- Cluster for Translational Oncology, Ludwig Boltzmann Society, Vienna, Austria; Department of Internal Medicine 2, Donauspital, Vienna, Austria
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Characterization of SLCO5A1/OATP5A1, a solute carrier transport protein with non-classical function. PLoS One 2013; 8:e83257. [PMID: 24376674 PMCID: PMC3869781 DOI: 10.1371/journal.pone.0083257] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Accepted: 11/01/2013] [Indexed: 12/14/2022] Open
Abstract
Organic anion transporting polypeptides (OATP/SLCO) have been identified to mediate the uptake of a broad range of mainly amphipathic molecules. Human OATP5A1 was found to be expressed in the epithelium of many cancerous and non-cancerous tissues throughout the body but protein characterization and functional analysis have not yet been performed. This study focused on the biochemical characterization of OATP5A1 using Xenopus laevis oocytes and Flp-In T-REx-HeLa cells providing evidence regarding a possible OATP5A1 function. SLCO5A1 is highly expressed in mature dendritic cells compared to immature dendritic cells (∼6.5-fold) and SLCO5A1 expression correlates with the differentiation status of primary blood cells. A core- and complex- N-glycosylated polypeptide monomer of ∼105 kDa and ∼130 kDa could be localized in intracellular membranes and on the plasma membrane, respectively. Inducible expression of SLCO5A1 in HeLa cells led to an inhibitory effect of ∼20% after 96 h on cell proliferation. Gene expression profiling with these cells identified immunologically relevant genes (e.g. CCL20) and genes implicated in developmental processes (e.g. TGM2). A single nucleotide polymorphism leading to the exchange of amino acid 33 (L→F) revealed no differences regarding protein expression and function. In conclusion, we provide evidence that OATP5A1 might be a non-classical OATP family member which is involved in biological processes that require the reorganization of the cell shape, such as differentiation and migration.
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Tumor-specific expression of organic anion-transporting polypeptides: transporters as novel targets for cancer therapy. JOURNAL OF DRUG DELIVERY 2013; 2013:863539. [PMID: 23431456 PMCID: PMC3574750 DOI: 10.1155/2013/863539] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Accepted: 12/24/2012] [Indexed: 01/16/2023]
Abstract
Members of the organic anion transporter family (OATP) mediate the transmembrane uptake of clinical important drugs and hormones thereby affecting drug disposition and tissue penetration. Particularly OATP subfamily 1 is known to mediate the cellular uptake of anticancer drugs (e.g., methotrexate, derivatives of taxol and camptothecin, flavopiridol, and imatinib). Tissue-specific expression was shown for OATP1B1/OATP1B3 in liver, OATP4C1 in kidney, and OATP6A1 in testis, while other OATPs, for example, OATP4A1, are expressed in multiple cells and organs. Many different tumor entities show an altered expression of OATPs. OATP1B1/OATP1B3 are downregulated in liver tumors, but highly expressed in cancers in the gastrointestinal tract, breast, prostate, and lung. Similarly, testis-specific OATP6A1 is expressed in cancers in the lung, brain, and bladder. Due to their presence in various cancer tissues and their limited expression in normal tissues, OATP1B1, OATP1B3, and OATP6A1 could be a target for tumor immunotherapy. Otherwise, high levels of ubiquitous expressed OATP4A1 are found in colorectal cancers and their metastases. Therefore, this OATP might serve as biomarkers for these tumors. Expression of OATP is regulated by nuclear receptors, inflammatory cytokines, tissue factors, and also posttranslational modifications of the proteins. Through these processes, the distribution of the transporter in the tissue will be altered, and a shift from the plasma membrane to cytoplasmic compartments is possible. It will modify OATP uptake properties and, subsequently, change intracellular concentrations of drugs, hormones, and various other OATP substrates. Therefore, screening tumors for OATP expression before therapy should lead to an OATP-targeted therapy with higher efficacy and decreased side effects.
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