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Hucke A, Schröter R, Ceresa C, Chiorazzi A, Canta A, Semperboni S, Marmiroli P, Cavaletti G, Gess B, Ciarimboli G. Role of Mouse Organic Cation Transporter 2 for Nephro- and Peripheral Neurotoxicity Induced by Chemotherapeutic Treatment with Cisplatin. Int J Mol Sci 2023; 24:11486. [PMID: 37511245 PMCID: PMC10380567 DOI: 10.3390/ijms241411486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/06/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
Cisplatin (CDDP) is an efficient chemotherapeutic agent broadly used to treat solid cancers. Chemotherapy with CDDP can cause significant unwanted side effects such as renal toxicity and peripheral neurotoxicity. CDDP is a substrate of organic cation transporters (OCT), transporters that are highly expressed in renal tissue. Therefore, CDDP uptake by OCT may play a role in causing unwanted toxicities of CDDP anticancer treatment. In this study, the contribution of the mouse OCT2 (mOCT2) to CDDP nephro- and peripheral neurotoxicity was investigated by comparing the effects of cyclic treatment with low doses of CDDP on renal and neurological functions in wild-type (WT) mice and mice with genetic deletion of OCT2 (OCT2-/- mice). This CDDP treatment protocol caused significant impairment of kidneys and peripherical neurological functions in WT mice. These effects were significantly reduced in OCT2-/- mice, however, less profoundly than what was previously measured in mice with genetic deletion of both OCT1 and 2 (OCT1-2-/- mice). Comparing the apparent affinities (IC50) of mOCT1 and mOCT2 for CDDP, the mOCT1 displayed a higher affinity for CDDP than the mOCT2 (IC50: 9 and 558 µM, respectively). Also, cellular toxicity induced by incubation with 100 µM CDDP was more pronounced in cells stably expressing mOCT1 than in cells expressing mOCT2. Therefore, in mice, CDDP uptake by both OCT1 and 2 contributes to the development of CDDP undesired side effects. OCT seem to be suitable targets for establishing treatment protocols aimed at decreasing unwanted CDDP toxicity and improving anticancer treatment with CDDP.
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Affiliation(s)
- Anna Hucke
- Experimentelle Nephrologie, Medizinische Klinik D, Universitätsklinikum Münster, 48149 Münster, Germany; (A.H.); (R.S.)
| | - Rita Schröter
- Experimentelle Nephrologie, Medizinische Klinik D, Universitätsklinikum Münster, 48149 Münster, Germany; (A.H.); (R.S.)
| | - Cecilia Ceresa
- Experimental Neurology Unit, Department of Medicine and Surgery, University of Milano Bicocca, 20900 Monza, Italy; (C.C.); (A.C.); (A.C.); (S.S.); (P.M.); (G.C.)
| | - Alessia Chiorazzi
- Experimental Neurology Unit, Department of Medicine and Surgery, University of Milano Bicocca, 20900 Monza, Italy; (C.C.); (A.C.); (A.C.); (S.S.); (P.M.); (G.C.)
| | - Annalisa Canta
- Experimental Neurology Unit, Department of Medicine and Surgery, University of Milano Bicocca, 20900 Monza, Italy; (C.C.); (A.C.); (A.C.); (S.S.); (P.M.); (G.C.)
| | - Sara Semperboni
- Experimental Neurology Unit, Department of Medicine and Surgery, University of Milano Bicocca, 20900 Monza, Italy; (C.C.); (A.C.); (A.C.); (S.S.); (P.M.); (G.C.)
| | - Paola Marmiroli
- Experimental Neurology Unit, Department of Medicine and Surgery, University of Milano Bicocca, 20900 Monza, Italy; (C.C.); (A.C.); (A.C.); (S.S.); (P.M.); (G.C.)
| | - Guido Cavaletti
- Experimental Neurology Unit, Department of Medicine and Surgery, University of Milano Bicocca, 20900 Monza, Italy; (C.C.); (A.C.); (A.C.); (S.S.); (P.M.); (G.C.)
- Fondazione IRCCS San Gerardo dei Tintori, 20900 Monza, Italy
| | - Burkhard Gess
- Department of Neurology, University Hospital Münster, 48149 Münster, Germany;
- Department of Neurology, Evangelisches Klinikum Bethel, University of Bielefeld, 33617 Bielefeld, Germany
| | - Giuliano Ciarimboli
- Experimentelle Nephrologie, Medizinische Klinik D, Universitätsklinikum Münster, 48149 Münster, Germany; (A.H.); (R.S.)
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MPP +-Induced Changes in Cellular Impedance as a Measure for Organic Cation Transporter (SLC22A1-3) Activity and Inhibition. Int J Mol Sci 2022; 23:ijms23031203. [PMID: 35163125 PMCID: PMC8835585 DOI: 10.3390/ijms23031203] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/13/2022] [Accepted: 01/19/2022] [Indexed: 02/04/2023] Open
Abstract
The organic cation transporters OCT1-3 (SLC22A1-3) facilitate the transport of cationic endo- and xenobiotics and are important mediators of drug distribution and elimination. Their polyspecific nature makes OCTs highly susceptible to drug-drug interactions (DDIs). Currently, screening of OCT inhibitors depends on uptake assays that require labeled substrates to detect transport activity. However, these uptake assays have several limitations. Hence, there is a need to develop novel assays to study OCT activity in a physiological relevant environment without the need to label the substrate. Here, a label-free impedance-based transport assay is established that detects OCT-mediated transport activity and inhibition utilizing the neurotoxin MPP+. Uptake of MPP+ by OCTs induced concentration-dependent changes in cellular impedance that were inhibited by decynium-22, corticosterone, and Tyrosine Kinase inhibitors. OCT-mediated MPP+ transport activity and inhibition were quantified on both OCT1-3 overexpressing cells and HeLa cells endogenously expressing OCT3. Moreover, the method presented here is a valuable tool to identify novel inhibitors and potential DDI partners for MPP+ transporting solute carrier proteins (SLCs) in general.
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Ciarimboli G. Regulation Mechanisms of Expression and Function of Organic Cation Transporter 1. Front Pharmacol 2021; 11:607613. [PMID: 33732143 PMCID: PMC7959823 DOI: 10.3389/fphar.2020.607613] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 12/01/2020] [Indexed: 12/12/2022] Open
Abstract
The organic cation transporter 1 (OCT1) belongs together with OCT2 and OCT3 to the solute carrier family 22 (SLC22). OCTs are involved in the movement of organic cations through the plasma membrane. In humans, OCT1 is mainly expressed in the sinusoidal membrane of hepatocytes, while in rodents, OCT1 is strongly represented also in the basolateral membrane of renal proximal tubule cells. Considering that organic cations of endogenous origin are important neurotransmitters and that those of exogenous origin are important drugs, these transporters have significant physiological and pharmacological implications. Because of the high expression of OCTs in excretory organs, their activity has the potential to significantly impact not only local but also systemic concentration of their substrates. Even though many aspects governing OCT function, interaction with substrates, and pharmacological role have been extensively investigated, less is known about regulation of OCTs. Possible mechanisms of regulation include genetic and epigenetic modifications, rapid regulation processes induced by kinases, regulation caused by protein–protein interaction, and long-term regulation induced by specific metabolic and pathological situations. In this mini-review, the known regulatory processes of OCT1 expression and function obtained from in vitro and in vivo studies are summarized. Further research should be addressed to integrate this knowledge to known aspects of OCT1 physiology and pharmacology.
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Affiliation(s)
- Giuliano Ciarimboli
- Experimental Nephrology, Medicine Clinic D, Münster University Hospital, Münster, Germany
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Glazachev YI, Schlotgauer AA, Timoshnikov VA, Kononova PA, Selyutina OY, Shelepova EA, Zelikman MV, Khvostov MV, Polyakov NE. Effect of Glycyrrhizic Acid and Arabinogalactan on the Membrane Potential of Rat Thymocytes Studied by Potential-Sensitive Fluorescent Probe. J Membr Biol 2020; 253:343-356. [PMID: 32725429 DOI: 10.1007/s00232-020-00132-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 07/17/2020] [Indexed: 01/06/2023]
Abstract
The effect of the natural saponin glycyrrhizic acid (GA) and polysaccharide arabinogalactan (AG) on the transmembrane potential of rat thymocytes was investigated using the potential-sensitive fluorescent probe 4-(p-dimethylaminostyryl)-1-methylpyridinium (DSM). Incubation of cells with GA in micellar form resulted in a decrease of the amplitude of observed fluorescence kinetics that points out to a decrease of the transmembrane potential. The proposed mechanism is an increase of membrane ion permeability (passive ion transport) of the plasma cell membrane due to GA incorporation. The incorporation of GA molecules into the cell membrane is extremely sensitive to the degree of GA dissociation. The neutral form of glycyrrhizic acid enters the lipid bilayer in contrast to the deprotonated anionic form. The incubation of rat thymocytes with anionic form of GA, namely with its disodium salt, has no effect on the fluorescence kinetics. The possible reasons of this phenomenon are discussed in the light of the nuclear magnetic resonance (NMR) and molecular dynamics (MD) data. The treatment of thymocytes with AG affects only the initial rate of the probe incorporation. The proposed mechanism is that AG covers the surface of the cell membrane and forms a barrier for the probe. Additionally, our experiments demonstrated that both polysaccharide AG and GA in the neutral form (but not Na2GA) effectively capture the cationic probe in an aqueous solution and then deliver it to the cell membrane.
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Affiliation(s)
- Yuri I Glazachev
- Institute of Chemical Kinetics and Combustion, Novosibirsk, Russia
| | | | | | | | | | | | - Maxim V Zelikman
- Institute of Chemical Kinetics and Combustion, Novosibirsk, Russia.,Institute of Solid State Chemistry and Mechanochemistry, Novosibirsk, Russia
| | - Mikhail V Khvostov
- Novosibirsk State University, Novosibirsk, Russia.,Vorozhtsov Institute of Organic Chemistry, Novosibirsk, Russia
| | - Nikolay E Polyakov
- Institute of Chemical Kinetics and Combustion, Novosibirsk, Russia.,Institute of Solid State Chemistry and Mechanochemistry, Novosibirsk, Russia
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Costa ACC, Yamamoto PA, Lauretti GR, Benzi JR, Zanelli CF, Barz V, Ciarimboli G, Moraes NV. Cetirizine Reduces Gabapentin Plasma Concentrations and Effect: Role of Renal Drug Transporters for Organic Cations. J Clin Pharmacol 2020; 60:1076-1086. [DOI: 10.1002/jcph.1603] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 02/10/2020] [Indexed: 12/17/2022]
Affiliation(s)
- Ana Carolina Conchon Costa
- School of Pharmaceutical Sciences of Ribeirão PretoUSP–São Paulo University Ribeirão Preto SP Brazil
- Experimental Nephrology, Medicine Clinic DUniversity Hospital Münster Münster Germany
| | | | | | - Jhohann Richard Benzi
- School of Pharmaceutical Sciences of Ribeirão PretoUSP–São Paulo University Ribeirão Preto SP Brazil
| | | | - Vivien Barz
- Experimental Nephrology, Medicine Clinic DUniversity Hospital Münster Münster Germany
| | - Giuliano Ciarimboli
- Experimental Nephrology, Medicine Clinic DUniversity Hospital Münster Münster Germany
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