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Roelens R, Peigneur ANF, Voets T, Vriens J. Neurodevelopmental disorders caused by variants in TRPM3. Biochim Biophys Acta Mol Cell Res 2024; 1871:119709. [PMID: 38522727 DOI: 10.1016/j.bbamcr.2024.119709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/15/2024] [Accepted: 03/18/2024] [Indexed: 03/26/2024]
Abstract
Developmental and epileptic encephalopathies (DEE) are a broad and varied group of disorders that affect the brain and are characterized by epilepsy and comorbid intellectual disability (ID). These conditions have a broad spectrum of symptoms and can be caused by various underlying factors, including genetic mutations, infections, and other medical conditions. The exact cause of DEE remains largely unknown in the majority of cases. However, in around 25 % of patients, rare nonsynonymous coding variants in genes encoding ion channels, cell-surface receptors, and other neuronally expressed proteins are identified. This review focuses on a subgroup of DEE patients carrying variations in the gene encoding the Transient Receptor Potential Melastatin 3 (TRPM3) ion channel, where recent data indicate that gain-of-function of TRPM3 channel activity underlies a spectrum of dominant neurodevelopmental disorders.
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Affiliation(s)
- Robbe Roelens
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Leuven, Belgium; Laboratory of Ion Channel Research, Department of Molecular Medicine, KU Leuven, Leuven, Belgium; VIB-KU Leuven Center for Brain and Disease Research, Leuven, Belgium
| | - Ana Nogueira Freitas Peigneur
- Laboratory of Ion Channel Research, Department of Molecular Medicine, KU Leuven, Leuven, Belgium; VIB-KU Leuven Center for Brain and Disease Research, Leuven, Belgium
| | - Thomas Voets
- Laboratory of Ion Channel Research, Department of Molecular Medicine, KU Leuven, Leuven, Belgium; VIB-KU Leuven Center for Brain and Disease Research, Leuven, Belgium.
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Leuven, Belgium; Laboratory of Ion Channel Research, Department of Molecular Medicine, KU Leuven, Leuven, Belgium.
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2
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Chui JS, Izuel‐Idoype T, Qualizza A, de Almeida RP, Piessens L, van der Veer BK, Vanmarcke G, Malesa A, Athanasouli P, Boon R, Vriens J, van Grunsven L, Koh KP, Verfaillie CM, Lluis F. Osmolar Modulation Drives Reversible Cell Cycle Exit and Human Pluripotent Cell Differentiation via NF-κВ and WNT Signaling. Adv Sci (Weinh) 2024; 11:e2307554. [PMID: 38037844 PMCID: PMC10870039 DOI: 10.1002/advs.202307554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Indexed: 12/02/2023]
Abstract
Terminally differentiated cells are commonly regarded as the most stable cell state in adult organisms, characterized by growth arrest while fulfilling their specialized functions. A better understanding of the mechanisms involved in promoting cell cycle exit will improve the ability to differentiate pluripotent cells into mature tissues for both pharmacological and therapeutic use. Here, it demonstrates that a hyperosmolar environment enforces a protective p53-independent quiescent state in immature hepatoma cells and in pluripotent stem cell-derived models of human hepatocytes and endothelial cells. Prolonged culture in hyperosmolar conditions stimulates changes in gene expression promoting functional cell maturation. Interestingly, hyperosmolar conditions do not only trigger growth arrest and cellular maturation but are also necessary to maintain this maturated state, as switching back to plasma osmolarity reverses the changes in expression of maturation and proliferative markers. Transcriptome analysis revealed sequential stages of osmolarity-regulated growth arrest followed by cell maturation, mediated by activation of NF-κВ, and repression of WNT signaling, respectively. This study reveals that a modulated increase in osmolarity serves as a biochemical signal to promote long-term growth arrest and cellular maturation into different lineages, providing a practical method to generate differentiated hiPSCs that resemble their mature counterpart more closely.
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Affiliation(s)
- Jonathan Sai‐Hong Chui
- KU LeuvenDepartment of Development and RegenerationStem Cell InstituteHerestraat 49Leuven3000Belgium
| | - Teresa Izuel‐Idoype
- KU LeuvenDepartment of Development and RegenerationStem Cell InstituteHerestraat 49Leuven3000Belgium
| | - Alessandra Qualizza
- KU LeuvenDepartment of Development and RegenerationStem Cell InstituteHerestraat 49Leuven3000Belgium
| | - Rita Pires de Almeida
- KU LeuvenDepartment of Development and RegenerationStem Cell InstituteHerestraat 49Leuven3000Belgium
| | - Lindsey Piessens
- KU LeuvenDepartment of Development and RegenerationStem Cell InstituteHerestraat 49Leuven3000Belgium
| | - Bernard K. van der Veer
- KU LeuvenDepartment of Development and RegenerationStem Cell InstituteHerestraat 49Leuven3000Belgium
| | - Gert Vanmarcke
- KU LeuvenDepartment of Development and RegenerationStem Cell InstituteHerestraat 49Leuven3000Belgium
| | - Aneta Malesa
- KU LeuvenDepartment of Development and RegenerationStem Cell InstituteHerestraat 49Leuven3000Belgium
| | - Paraskevi Athanasouli
- KU LeuvenDepartment of Development and RegenerationStem Cell InstituteHerestraat 49Leuven3000Belgium
| | - Ruben Boon
- KU LeuvenDepartment of Development and RegenerationStem Cell InstituteHerestraat 49Leuven3000Belgium
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis and Reproductive MedicineDepartment of Development and RegenerationKU LeuvenHerestraat 49Leuven3000Belgium
| | - Leo van Grunsven
- Liver Cell Biology Research GroupVrije Universiteit BrusselLaarbeeklaan 103Brussels1090Belgium
| | - Kian Peng Koh
- KU LeuvenDepartment of Development and RegenerationStem Cell InstituteHerestraat 49Leuven3000Belgium
| | - Catherine M. Verfaillie
- KU LeuvenDepartment of Development and RegenerationStem Cell InstituteHerestraat 49Leuven3000Belgium
| | - Frederic Lluis
- KU LeuvenDepartment of Development and RegenerationStem Cell InstituteHerestraat 49Leuven3000Belgium
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Alexander SPH, Mathie AA, Peters JA, Veale EL, Striessnig J, Kelly E, Armstrong JF, Faccenda E, Harding SD, Davies JA, Aldrich RW, Attali B, Baggetta AM, Becirovic E, Biel M, Bill RM, Caceres AI, Catterall WA, Conner AC, Davies P, De Clerq K, Delling M, Di Virgilio F, Falzoni S, Fenske S, Fortuny-Gomez A, Fountain S, George C, Goldstein SAN, Grimm C, Grissmer S, Ha K, Hammelmann V, Hanukoglu I, Hu M, Ijzerman AP, Jabba SV, Jarvis M, Jensen AA, Jordt SE, Kaczmarek LK, Kellenberger S, Kennedy C, King B, Kitchen P, Liu Q, Lynch JW, Meades J, Mehlfeld V, Nicke A, Offermanns S, Perez-Reyes E, Plant LD, Rash L, Ren D, Salman MM, Sieghart W, Sivilotti LG, Smart TG, Snutch TP, Tian J, Trimmer JS, Van den Eynde C, Vriens J, Wei AD, Winn BT, Wulff H, Xu H, Yang F, Fang W, Yue L, Zhang X, Zhu M. The Concise Guide to PHARMACOLOGY 2023/24: Ion channels. Br J Pharmacol 2023; 180 Suppl 2:S145-S222. [PMID: 38123150 DOI: 10.1111/bph.16178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023] Open
Abstract
The Concise Guide to PHARMACOLOGY 2023/24 is the sixth in this series of biennial publications. The Concise Guide provides concise overviews, mostly in tabular format, of the key properties of approximately 1800 drug targets, and over 6000 interactions with about 3900 ligands. There is an emphasis on selective pharmacology (where available), plus links to the open access knowledgebase source of drug targets and their ligands (https://www.guidetopharmacology.org/), which provides more detailed views of target and ligand properties. Although the Concise Guide constitutes almost 500 pages, the material presented is substantially reduced compared to information and links presented on the website. It provides a permanent, citable, point-in-time record that will survive database updates. The full contents of this section can be found at http://onlinelibrary.wiley.com/doi/10.1111/bph.16178. Ion channels are one of the six major pharmacological targets into which the Guide is divided, with the others being: G protein-coupled receptors, nuclear hormone receptors, catalytic receptors, enzymes and transporters. These are presented with nomenclature guidance and summary information on the best available pharmacological tools, alongside key references and suggestions for further reading. The landscape format of the Concise Guide is designed to facilitate comparison of related targets from material contemporary to mid-2023, and supersedes data presented in the 2021/22, 2019/20, 2017/18, 2015/16 and 2013/14 Concise Guides and previous Guides to Receptors and Channels. It is produced in close conjunction with the Nomenclature and Standards Committee of the International Union of Basic and Clinical Pharmacology (NC-IUPHAR), therefore, providing official IUPHAR classification and nomenclature for human drug targets, where appropriate.
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Affiliation(s)
- Stephen P H Alexander
- School of Life Sciences, University of Nottingham Medical School, Nottingham, NG7 2UH, UK
| | - Alistair A Mathie
- School of Engineering, Arts, Science and Technology, University of Suffolk, Ipswich, IP4 1QJ, UK
| | - John A Peters
- Neurosci-ence Division, Medical Education Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee, DD1 9SY, UK
| | - Emma L Veale
- Medway School of Pharmacy, The Universities of Greenwich and Kent at Medway, Anson Building, Central Avenue, Chatham Maritime, Chatham, Kent, ME4 4TB, UK
| | - Jörg Striessnig
- Pharmacology and Toxicology, Institute of Pharmacy, University of Innsbruck, A-6020, Innsbruck, Austria
| | - Eamonn Kelly
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, BS8 1TD, UK
| | - Jane F Armstrong
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, EH8 9XD, UK
| | - Elena Faccenda
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, EH8 9XD, UK
| | - Simon D Harding
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, EH8 9XD, UK
| | - Jamie A Davies
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, EH8 9XD, UK
| | | | | | | | | | - Martin Biel
- Ludwig Maximilian University of Munich, Munich, Germany
| | | | | | | | | | - Paul Davies
- Tufts University School of Medicine, Boston, USA
| | | | - Markus Delling
- University of California San Francisco, San Francisco, USA
| | | | | | | | | | | | - Chandy George
- Nanyang Technological University, Singapore, Singapore
| | | | | | | | - Kotdaji Ha
- University of California San Francisco, San Francisco, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Annette Nicke
- Ludwig Maximilian University of Munich, Munich, Germany
| | - Stefan Offermanns
- Max Planck Institute for Heart and Lung Research/JW Goethe University, Bad Nauheim/Frankfurt, Germany
| | | | | | | | - Dejian Ren
- University of Pennsylvania, Philadelphia, USA
| | | | | | | | | | | | - Jinbin Tian
- University of Texas at Houston, Houston, USA
| | | | | | | | | | | | | | | | | | | | - Lixia Yue
- University of Connecticut, Farmington, USA
| | | | - Michael Zhu
- University of Texas at Houston, Houston, USA
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Aloi VD, Pinto SJPC, Van Bree R, Luyten K, Voets T, Vriens J. TRPM3 as a novel target to alleviate acute oxaliplatin-induced peripheral neuropathic pain. Pain 2023; 164:2060-2069. [PMID: 37079852 PMCID: PMC10436359 DOI: 10.1097/j.pain.0000000000002906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 02/02/2023] [Accepted: 02/07/2023] [Indexed: 04/22/2023]
Abstract
ABSTRACT Chemotherapy-induced peripheral neuropathic pain (CIPNP) is an adverse effect observed in up to 80% of patients of cancer on treatment with cytostatic drugs including paclitaxel and oxaliplatin. Chemotherapy-induced peripheral neuropathic pain can be so severe that it limits dose and choice of chemotherapy and has significant negative consequences on the quality of life of survivors. Current treatment options for CIPNP are limited and unsatisfactory. TRPM3 is a calcium-permeable ion channel functionally expressed in peripheral sensory neurons involved in the detection of thermal stimuli. Here, we focus on the possible involvement of TRPM3 in acute oxaliplatin-induced mechanical allodynia and cold hypersensitivity. In vitro calcium microfluorimetry and whole-cell patch-clamp experiments showed that TRPM3 is functionally upregulated in both heterologous and homologous expression systems after acute (24 hours) oxaliplatin treatment, whereas the direct application of oxaliplatin was without effect. In vivo behavioral studies using an acute oxaliplatin model for CIPNP showed the development of cold and mechano hypersensitivity in control mice, which was lacking in TRPM3 deficient mice. In addition, the levels of protein ERK, a marker for neuronal activity, were significantly reduced in dorsal root ganglion neurons derived from TRPM3 deficient mice compared with control after oxaliplatin administration. Moreover, intraperitoneal injection of a TRPM3 antagonist, isosakuranetin, effectively reduced the oxaliplatin-induced pain behavior in response to cold and mechanical stimulation in mice with an acute form of oxaliplatin-induced peripheral neuropathy. In summary, TRPM3 represents a potential new target for the treatment of neuropathic pain in patients undergoing chemotherapy.
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Affiliation(s)
- Vincenzo Davide Aloi
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
- Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, Leuven, Belgium
- Department of Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Sílvia João Poseiro Coutinho Pinto
- Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, Leuven, Belgium
- Department of Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Rita Van Bree
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Katrien Luyten
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Thomas Voets
- Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, Leuven, Belgium
- Department of Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
- Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, Leuven, Belgium
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5
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Hennes A, Devroe J, De Clercq K, Ciprietti M, Held K, Luyten K, Van Ranst N, Maenhoudt N, Peeraer K, Vankelecom H, Voets T, Vriens J. Protease secretions by the invading blastocyst induce calcium oscillations in endometrial epithelial cells via the protease-activated receptor 2. Reprod Biol Endocrinol 2023; 21:37. [PMID: 37060079 PMCID: PMC10105462 DOI: 10.1186/s12958-023-01085-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 03/23/2023] [Indexed: 04/16/2023] Open
Abstract
BACKGROUND Early embryo implantation is a complex phenomenon characterized by the presence of an implantation-competent blastocyst and a receptive endometrium. Embryo development and endometrial receptivity must be synchronized and an adequate two-way dialogue between them is necessary for maternal recognition and implantation. Proteases have been described as blastocyst-secreted proteins involved in the hatching process and early implantation events. These enzymes stimulate intracellular calcium signaling pathways in endometrial epithelial cells (EEC). However, the exact molecular players underlying protease-induced calcium signaling, the subsequent downstream signaling pathways and the biological impact of its activation remain elusive. METHODS To identify gene expression of the receptors and ion channels of interest in human and mouse endometrial epithelial cells, RNA sequencing, RT-qPCR and in situ hybridization experiments were conducted. Calcium microfluorimetric experiments were performed to study their functional expression. RESULTS We showed that trypsin evoked intracellular calcium oscillations in EEC of mouse and human, and identified the protease-activated receptor 2 (PAR2) as the molecular entity initiating protease-induced calcium responses in EEC. In addition, this study unraveled the molecular players involved in the downstream signaling of PAR2 by showing that depletion and re-filling of intracellular calcium stores occurs via PLC, IP3R and the STIM1/Orai1 complex. Finally, in vitro experiments in the presence of a specific PAR2 agonist evoked an upregulation of the 'Window of implantation' markers in human endometrial epithelial cells. CONCLUSIONS These findings provide new insights into the blastocyst-derived protease signaling and allocate a key role for PAR2 as maternal sensor for signals released by the developing blastocyst.
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Grants
- C14/18/106 Research Council of the KU Leuven
- C14/18/106 Research Council of the KU Leuven
- C14/18/106 Research Council of the KU Leuven
- C14/18/106 Research Council of the KU Leuven
- G.0D1417N, G.084515N, G.0A6719N, 12R4622N, 12U7918N Fonds Wetenschappelijk Onderzoek
- G.0D1417N, G.084515N, G.0A6719N, 12R4622N, 12U7918N Fonds Wetenschappelijk Onderzoek
- G.0D1417N, G.084515N, G.0A6719N, 12R4622N, 12U7918N Fonds Wetenschappelijk Onderzoek
- G.0D1417N, G.084515N, G.0A6719N, 12R4622N, 12U7918N Fonds Wetenschappelijk Onderzoek
- G.0D1417N, G.084515N, G.0A6719N, 12R4622N, 12U7918N Fonds Wetenschappelijk Onderzoek
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Affiliation(s)
- Aurélie Hennes
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 Box 611, 3000, Leuven, Belgium
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, VIB Center for Brain & Disease Research, KU Leuven, Herestraat 49 Box 802, 3000, Leuven, Belgium
| | - Johanna Devroe
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 Box 611, 3000, Leuven, Belgium
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, VIB Center for Brain & Disease Research, KU Leuven, Herestraat 49 Box 802, 3000, Leuven, Belgium
- Leuven University Fertility Center, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Katrien De Clercq
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 Box 611, 3000, Leuven, Belgium
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, VIB Center for Brain & Disease Research, KU Leuven, Herestraat 49 Box 802, 3000, Leuven, Belgium
| | - Martina Ciprietti
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 Box 611, 3000, Leuven, Belgium
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, VIB Center for Brain & Disease Research, KU Leuven, Herestraat 49 Box 802, 3000, Leuven, Belgium
| | - Katharina Held
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 Box 611, 3000, Leuven, Belgium
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, VIB Center for Brain & Disease Research, KU Leuven, Herestraat 49 Box 802, 3000, Leuven, Belgium
| | - Katrien Luyten
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 Box 611, 3000, Leuven, Belgium
| | - Nele Van Ranst
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, VIB Center for Brain & Disease Research, KU Leuven, Herestraat 49 Box 802, 3000, Leuven, Belgium
| | - Nina Maenhoudt
- Laboratory of Tissue Plasticity in Health and Disease, Cluster of Stem Cell and Developmental Biology, Department of Development and Regeneration, KU Leuven, Herestraat 49 Box 804, 3000, Leuven, Belgium
| | - Karen Peeraer
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 Box 611, 3000, Leuven, Belgium
- Leuven University Fertility Center, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Hugo Vankelecom
- Laboratory of Tissue Plasticity in Health and Disease, Cluster of Stem Cell and Developmental Biology, Department of Development and Regeneration, KU Leuven, Herestraat 49 Box 804, 3000, Leuven, Belgium
| | - Thomas Voets
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, VIB Center for Brain & Disease Research, KU Leuven, Herestraat 49 Box 802, 3000, Leuven, Belgium
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 Box 611, 3000, Leuven, Belgium.
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, VIB Center for Brain & Disease Research, KU Leuven, Herestraat 49 Box 802, 3000, Leuven, Belgium.
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Kahler JP, Aloi VD, Miedes Aliaga J, Kerselaers S, Voets T, Vriens J, Verhelst SHL, Barniol-Xicota M. Clotrimazole-Based Modulators of the TRPM3 Ion Channel Reveal Narrow Structure-Activity Relationship. ACS Chem Biol 2023; 18:456-464. [PMID: 36762958 DOI: 10.1021/acschembio.2c00672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
TRPM3 is an ion channel that is highly expressed in nociceptive neurons and plays a key role in pain perception. In the presence of the endogenous TRPM3 ligand, pregnenolone sulfate (PS), the antifungal compound clotrimazole (Clt) augments Ca2+ signaling and opens a non-canonical pore, permeable to Na+, which aggravates TRPM3-induced pain. To date, little is known about structural features that govern the Clt modulatory effect of TRPM3. Here, we synthesized and evaluated several Clt analogues in order to gain insights into their structure-activity relationship. Our results reveal a tight SAR with the three phenyl rings on the trityl moiety being essential for the activity, as well as the presence of fluorine or chlorine substituents on the trityl group. Imidazole as a heterocycle is also necessary for activity. Interestingly, we identified a pentafluoro-trityl analogue (29a) that is able to act as a TRPM3 agonist in the absence of PS. The compounds we report in this work will be useful tools for the further study of TRPM3 modulation and its effect on pain perception.
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Affiliation(s)
- Jan Pascal Kahler
- Department of Cellular and Molecular Medicine, Laboratory of Chemical Biology, KU Leuven, Herestraat 49, Box 901b, 3000 Leuven, Belgium
| | - Vincenzo Davide Aloi
- Laboratory of Ion Channel Research, VIB Center for Brain and Disease Research, Herestraat 49, Box 802, 3000 Leuven, Belgium.,Department of Cellular and Molecular Medicine, Laboratory of Ion Channel Research, KU Leuven, Herestraat 49, Box 802, 3000 Leuven, Belgium.,Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium
| | - Julia Miedes Aliaga
- Department of Cellular and Molecular Medicine, Laboratory of Chemical Biology, KU Leuven, Herestraat 49, Box 901b, 3000 Leuven, Belgium
| | - Sara Kerselaers
- Laboratory of Ion Channel Research, VIB Center for Brain and Disease Research, Herestraat 49, Box 802, 3000 Leuven, Belgium.,Department of Cellular and Molecular Medicine, Laboratory of Ion Channel Research, KU Leuven, Herestraat 49, Box 802, 3000 Leuven, Belgium
| | - Thomas Voets
- Laboratory of Ion Channel Research, VIB Center for Brain and Disease Research, Herestraat 49, Box 802, 3000 Leuven, Belgium.,Department of Cellular and Molecular Medicine, Laboratory of Ion Channel Research, KU Leuven, Herestraat 49, Box 802, 3000 Leuven, Belgium
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium
| | - Steven H L Verhelst
- Department of Cellular and Molecular Medicine, Laboratory of Chemical Biology, KU Leuven, Herestraat 49, Box 901b, 3000 Leuven, Belgium.,Leibniz Institute for Analytical Sciences, ISAS, e.V., Otto-Hahn-Str. 6b, 44227 Dortmund, Germany
| | - Marta Barniol-Xicota
- Department of Cellular and Molecular Medicine, Laboratory of Chemical Biology, KU Leuven, Herestraat 49, Box 901b, 3000 Leuven, Belgium
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7
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Becker LL, Horn D, Boschann F, Van Hoeymissen E, Voets T, Vriens J, Prager C, Kaindl AM. Primidone improves symptoms in TRPM3-linked DEE-SWAS. Epilepsia 2023; 64:e61-e68. [PMID: 36929095 DOI: 10.1111/epi.17586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 03/13/2023] [Accepted: 03/14/2023] [Indexed: 03/18/2023]
Abstract
Developmental and epileptic encephalopathy (DEE) with continuous spike-and-wave activation in sleep (CSWS) or DEE-SWAS is an age-dependent disease, often accompanied by a decline in cognitive abilities. Early successful treatment of CSWS is associated with a better cognitive outcome. We retrospectively analyzed the clinical, electrophysiological, radiological, and genetic data of children with DEE-SWAS associated with melastatin-related transient receptor type 3 gene (TRPM3) missense variants. We report two unrelated children with pharmaco-resistant DEE-SWAS and developmental delay/regression and different heterozygous de novo missense variants in the TRPM3 gene (NM_001366145.2; c.3397T>C/p.Ser1133Pro, c.2004G>A/p.Val1002Met). The variant p.Val1002Met (previously known as p.Val990Met or p.Val837Met) and p.Ser1133Pro were recently shown to result in a gain-of-function (GoF) effect. Based on this fact, previous drug resistance, and the experimentally demonstrated inhibitory effect of primidone on TRPM3, we initiated an individualized therapy with this drug. In both children, developmental regression was stopped, psychomotor development improved, and CSWS was no longer detectable. To our knowledge, this is the first report of a treatment with primidone in TRPM3-associated CSWS. Our results highlight the importance of early genetic diagnosis in patients with epilepsy and the possibility of precision medicine, which should be considered in future individuals with a TRPM3-linked DEE-SWAS.
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Affiliation(s)
- Lena-Luise Becker
- Charité-Universitätsmedizin Berlin, Department of Pediatric Neurology, Augustenburger Platz 1, 13353, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Center for Chronically Sick Children, Augustenburger Platz 1, 13353, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Institute for Cell Biology and Neurobiology, Charitéplatz 1, 10117, Berlin, Germany
| | - Denise Horn
- Charité - Universitätsmedizin Berlin, Institute of Medical Genetics and Human Genetics, Berlin, Germany
| | - Felix Boschann
- Charité - Universitätsmedizin Berlin, Institute of Medical Genetics and Human Genetics, Berlin, Germany
| | - Evelien Van Hoeymissen
- Laboratory of Ion Channel Research, Department of cellular and molecular medicine, University of Leuven, Belgium.,VIB Center for Brain & Disease Research, Leuven, Belgium
| | - Thomas Voets
- Laboratory of Ion Channel Research, Department of cellular and molecular medicine, University of Leuven, Belgium.,Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department Development & Regeneration, University of Leuven, Belgium
| | - Joris Vriens
- VIB Center for Brain & Disease Research, Leuven, Belgium
| | - Christine Prager
- Charité-Universitätsmedizin Berlin, Department of Pediatric Neurology, Augustenburger Platz 1, 13353, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Center for Chronically Sick Children, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Angela M Kaindl
- Charité-Universitätsmedizin Berlin, Department of Pediatric Neurology, Augustenburger Platz 1, 13353, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Center for Chronically Sick Children, Augustenburger Platz 1, 13353, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Institute for Cell Biology and Neurobiology, Charitéplatz 1, 10117, Berlin, Germany
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8
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Geysenbergh B, Boes AS, Bafort C, Van Rompuy AS, Neyens S, Lie-Fong S, Debrock S, Vriens J, De Loecker P, Dancet E, D'Hooghe T, Peeraer K. The impact of chronic endometritis on infertility: prevalence, reproductive outcomes, and the role of hysteroscopy as a screening tool. Gynecol Obstet Invest 2023; 88:108-115. [PMID: 36739858 DOI: 10.1159/000529304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 01/16/2023] [Indexed: 02/05/2023]
Abstract
OBJECTIVES To study the prevalence of chronic endometritis (CE) in infertile women, its impact on reproductive outcomes, and the accuracy of hysteroscopy as a screening tool for CE. DESIGN Prospective observational study. PARTICIPANTS 514 asymptomatic patients with infertility. SETTING Tertiary care center. METHODS The participants underwent a hysteroscopy and endometrial biopsy (EMB). Antibiotics were given for cases of CE. We investigated the prevalence of CE in patients starting assisted reproductive technologies (ART) as a primary outcome. Secondary outcomes were the clinical pregnancy rate (CPR) in the ART cycle after hysteroscopy, EMB, and antibiotic treatment in cases of CE; the cumulative CPR in the subsequent 2 years after hysteroscopy and EMB; the sensitivity and specificity of hysteroscopy as a screening tool compared to EMB as the "gold standard" for diagnosing CE. RESULTS CE was identified in 2.8% of patients starting ART (11/393). CPRs did not differ significantly between patients with CE and the entire cohort of patients without CE in the subsequent ART cycle (OR 0.43; 95% CI 0.09-2.02) or in the 2 years after EMB (OR 0.56; 95% CI 0.16-1.97). In a matched control comparison (with matching for age, basal FSH, and cause of infertility) CPR in patients with CE did not differ in the subsequent ART cycle (OR 0.39; 95% CI 0.09-1.61); however, their CPR in the 2 years after EMB was significantly lower (OR 0.22; 95% CI 0.13-0.38). The sensitivity and specificity of hysteroscopy as a screening tool for diagnosing CE were 8.3% and 90.1%, respectively. LIMITATIONS Due to our cohort's low CE prevalence, we could not detect significant differences in CPRs. CONCLUSION CE is rare in our studied population of asymptomatic patients starting ART. Hysteroscopy cannot replace EMB for diagnosing CE.
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Affiliation(s)
- Brecht Geysenbergh
- Department of Gynaecology, UZ Leuven, Leuven, Belgium
- Department of Gynaecology, GZA Hospitals, Antwerp, Belgium
| | - Anne-Sophie Boes
- Department of Gynaecology, UZ Leuven, Leuven, Belgium
- Department of Gynaecology, AZ Diest, Diest, Belgium
| | - Céline Bafort
- Department of Gynaecology, UZ Leuven, Leuven, Belgium
| | | | - Sara Neyens
- Department of Gynaecology, Jessa Hospital, Hasselt, Belgium
| | - Sharon Lie-Fong
- Department of Gynaecology, UZ Leuven, Leuven, Belgium
- Department of Development and Regeneration, KULeuven, Leuven, Belgium
| | - Sophie Debrock
- Department of Gynaecology, UZ Leuven, Leuven, Belgium
- Department of Development and Regeneration, KULeuven, Leuven, Belgium
| | - Joris Vriens
- Lab of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KULeuven, Leuven, Belgium
| | - Peter De Loecker
- Department of Gynaecology, UZ Leuven, Leuven, Belgium
- Department of Gynaecology, GZA Hospitals, Antwerp, Belgium
| | - Eline Dancet
- Department of Development and Regeneration, KULeuven, Leuven, Belgium
| | - Thomas D'Hooghe
- Department of Development and Regeneration, KULeuven, Leuven, Belgium
| | - Karen Peeraer
- Department of Gynaecology, UZ Leuven, Leuven, Belgium
- Department of Development and Regeneration, KULeuven, Leuven, Belgium
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9
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Burglen L, Van Hoeymissen E, Qebibo L, Barth M, Belnap N, Boschann F, Depienne C, De Clercq K, Douglas AGL, Fitzgerald MP, Foulds N, Garel C, Helbig I, Held K, Horn D, Janssen A, Kaindl AM, Narayanan V, Prager C, Rupin-Mas M, Afenjar A, Zhao S, Ramaekers VT, Ruggiero SM, Thomas S, Valence S, Van Maldergem L, Rohacs T, Rodriguez D, Dyment D, Voets T, Vriens J. Gain-of-function variants in the ion channel gene TRPM3 underlie a spectrum of neurodevelopmental disorders. eLife 2023; 12:81032. [PMID: 36648066 PMCID: PMC9886277 DOI: 10.7554/elife.81032] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 12/07/2022] [Indexed: 01/18/2023] Open
Abstract
TRPM3 is a temperature- and neurosteroid-sensitive plasma membrane cation channel expressed in a variety of neuronal and non-neuronal cells. Recently, rare de novo variants in TRPM3 were identified in individuals with developmental and epileptic encephalopathy, but the link between TRPM3 activity and neuronal disease remains poorly understood. We previously reported that two disease-associated variants in TRPM3 lead to a gain of channel function . Here, we report a further 10 patients carrying one of seven additional heterozygous TRPM3 missense variants. These patients present with a broad spectrum of neurodevelopmental symptoms, including global developmental delay, intellectual disability, epilepsy, musculo-skeletal anomalies, and altered pain perception. We describe a cerebellar phenotype with ataxia or severe hypotonia, nystagmus, and cerebellar atrophy in more than half of the patients. All disease-associated variants exhibited a robust gain-of-function phenotype, characterized by increased basal activity leading to cellular calcium overload and by enhanced responses to the neurosteroid ligand pregnenolone sulfate when co-expressed with wild-type TRPM3 in mammalian cells. The antiseizure medication primidone, a known TRPM3 antagonist, reduced the increased basal activity of all mutant channels. These findings establish gain-of-function of TRPM3 as the cause of a spectrum of autosomal dominant neurodevelopmental disorders with frequent cerebellar involvement in humans and provide support for the evaluation of TRPM3 antagonists as a potential therapy.
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Affiliation(s)
- Lydie Burglen
- Centre de référence des malformations et maladies congénitales du cervelet, Départementde Génétique, APHP, Sorbonne UniversityParisFrance
- Developmental Brain Disorders Laboratory, Imagine InstituteParisFrance
| | - Evelien Van Hoeymissen
- Laboratory of Ion Channel Research, Department of cellular and molecular medicine, University of LeuvenLeuvenBelgium
- VIB Center for Brain & Disease ResearchLeuvenBelgium
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department Development & Regeneration, University of LeuvenLeuvenBelgium
| | - Leila Qebibo
- Centre de référence des malformations et maladies congénitales du cervelet, Départementde Génétique, APHP, Sorbonne UniversityParisFrance
| | - Magalie Barth
- Department of Genetics, University Hospital of AngersAngersFrance
| | - Newell Belnap
- Translational Genomics Research Institute (TGen), Neurogenomics Division, Center for Rare Childhood DisordersPhoenixUnited States
| | - Felix Boschann
- Charité – Universitäts medizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Medical Genetics and Human GeneticsBerlinGermany
| | - Christel Depienne
- Institute of Human Genetics, University Hospital Essen, University Duisburg-EssenEssenGermany
| | - Katrien De Clercq
- Laboratory of Ion Channel Research, Department of cellular and molecular medicine, University of LeuvenLeuvenBelgium
- VIB Center for Brain & Disease ResearchLeuvenBelgium
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department Development & Regeneration, University of LeuvenLeuvenBelgium
| | - Andrew GL Douglas
- University Hospital Southampton NHS Foundation TrustSouthamptonUnited Kingdom
| | | | - Nicola Foulds
- Wessex Clinical Genetics Service, University Hospital Southampton NHS Foundation TrustSouthamptonUnited Kingdom
| | - Catherine Garel
- Centre de référence des malformations et maladies congénitales du cervelet, Départementde Génétique, APHP, Sorbonne UniversityParisFrance
- Service de Radiologie Pédiatrique, Hôpital Armand-Trousseau, Médecine Sorbonne UniversitéParisFrance
| | - Ingo Helbig
- Children's Hospital of PhiladelphiaPhiladelphiaUnited States
| | - Katharina Held
- Laboratory of Ion Channel Research, Department of cellular and molecular medicine, University of LeuvenLeuvenBelgium
- VIB Center for Brain & Disease ResearchLeuvenBelgium
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department Development & Regeneration, University of LeuvenLeuvenBelgium
| | - Denise Horn
- Charité – Universitäts medizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Medical Genetics and Human GeneticsBerlinGermany
| | - Annelies Janssen
- Laboratory of Ion Channel Research, Department of cellular and molecular medicine, University of LeuvenLeuvenBelgium
- VIB Center for Brain & Disease ResearchLeuvenBelgium
| | - Angela M Kaindl
- Institute of Cell Biology and Neurobiology, Charité - Universitäts medizin BerlinBerlinGermany
- Department of Pediatric Neurology, Charité - Universitäts medizin BerlinBerlinGermany
- Charité – Universitäts medizin Berlin, Center for Chronically Sick ChildrenBerlinGermany
| | - Vinodh Narayanan
- Translational Genomics Research Institute (TGen), Neurogenomics Division, Center for Rare Childhood DisordersPhoenixUnited States
| | - Christina Prager
- Department of Pediatric Neurology, Charité - Universitäts medizin BerlinBerlinGermany
- Charité – Universitäts medizin Berlin, Center for Chronically Sick ChildrenBerlinGermany
| | - Mailys Rupin-Mas
- Department of Neuropediatrics, University Hospital of AngersAngersFrance
| | - Alexandra Afenjar
- Centre de référence des malformations et maladies congénitales du cervelet, Départementde Génétique, APHP, Sorbonne UniversityParisFrance
| | - Siyuan Zhao
- Department of Pharmacology, Physiology and Neuroscience, Rutgers, The State University of New JerseyNewarkUnited States
| | | | | | - Simon Thomas
- Wessex Regional Genetics Laboratory, Salisbury District HospitalSalisburyUnited Kingdom
| | - Stéphanie Valence
- Centre de référence des malformations et maladies congénitales du cervelet, Départementde Génétique, APHP, Sorbonne UniversityParisFrance
- Sorbonne Université, Service de Neuropédiatrie, Hôpital Trousseau AP-HPParisFrance
| | - Lionel Van Maldergem
- Centre de Génétique Humaine, Université de Franche-Comté BesançonBesanconFrance
- Center of Clinical Investigation 1431, National Institute of Health and Medical ResearchBesanconFrance
| | - Tibor Rohacs
- Department of Pharmacology, Physiology and Neuroscience, Rutgers, The State University of New JerseyNewarkUnited States
| | - Diana Rodriguez
- Centre de référence des malformations et maladies congénitales du cervelet, Départementde Génétique, APHP, Sorbonne UniversityParisFrance
- Sorbonne Université, Service de Neuropédiatrie, Hôpital Trousseau AP-HPParisFrance
| | - David Dyment
- Children's Hospital of Eastern Ontario Research Institute, University of OttawaOttawaCanada
| | - Thomas Voets
- Laboratory of Ion Channel Research, Department of cellular and molecular medicine, University of LeuvenLeuvenBelgium
- VIB Center for Brain & Disease ResearchLeuvenBelgium
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department Development & Regeneration, University of LeuvenLeuvenBelgium
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10
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Vriens J. O-116 New options for a personalised approach to improve implantation. Hum Reprod 2022. [DOI: 10.1093/humrep/deac105.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Embryo implantation is a highly coordinated complex process whereby a blastocyst-stage embryo attaches and invades the maternal endometrium before placentation and pregnancy. Implantation can only occur during a brief restricted period when the endometrium becomes receptive, described as the window of implantation. Embryo development and endometrium status must therefore be synchronized, and an important two-way fetal-maternal dialogue is required for successful implantation and the maternal recognition of the semi-allogenic conceptus. Despite significant progress in ART, implantation failure still affects numerous infertile couples worldwide and fewer that 10% of embryos successfully implant. Improved selection of both the viable embryos and the optimal endometrial phenotype for transfer remains crucial to enhancing implantation changes. Classical morphological embryo selection was the first strategy to improve successful implantation. Recently, new strategies were incorporated into clinical practice such as, embryonic genetic analysis, morphokinetics or ultrasound endometrial dating. However, these strategies remain insufficient to predict successful implantation. Recent years have seen a trend towards ‘omics’ methods, which enables the assessment of complete endometrial and embryonic molecular profiles during implantation. Omics approaches have advanced our knowledge of the implantation process, identifying potential biomarkers of successful and personalized implantation. Omics assays of the embryo and endometrium are being proposed or already being used as diagnostic tools for personalized embryo transfer in the most favorable endometrial environment. However, despite the large amount of biomarker information provided by omics, strong evidence to link data from all omics with a successful implantation outcome is still missing.
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Affiliation(s)
- J Vriens
- KU Leuven, Development & Regeneration , Leuven, Belgium
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11
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Devroe J, Peeraer K, De Loecker P, Dias L, Vriens J, Dancet E. O-089 The impact of sharing personalized IVF-prognoses: a randomized controlled trial. Hum Reprod 2022. [DOI: 10.1093/humrep/deac104.103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Study question
Are women less likely to expect unrealistic live birth rates (i.e. 100% or > 2x their personalized IVF-prognosis) if gynaecologists share personalized IVF-prognoses during embryo transfer?
Summary answer
Sharing IVF-prognoses results in 1/3 rather than 1/2 women expecting unrealistic live birth rates (p = 0.03), but their partners do not take their IVF-prognosis into account.
What is known already
IVF-patients know that average IVF-success rates are only around 30%, but this does not hold them back from expecting an IVF success-rate of around 59% from their own IVF-cycle. These unrealistic expectations cause frustration among clinic staff and seem to contribute to patient’s decision to discontinue IVF. Performant prognostic models can now calculate personalized IVF-prognoses, based on clinical and laboratory factors, but the impact of these models on the expectations and wellbeing of IVF-patients had yet to be examined by an RCT.
Study design, size, duration
As dictated by a-priori power calculation, 160 heterosexual couples having their 2nd-5th oocyte aspiration (2019-2021) were recruited to study minimally 128 randomized couples (computer; 1:1 allocation; drop-out=20%) on the day of fresh embryo transfer. On that day the attention-control group received an embryo photo and feedback on the number of cryopreserved embryos. The intervention group additionally received their embryo quality rating and personalized IVF-prognosis (complete IVF-cycle live birth rate, Devroe et al., BMJOpen, 2020).
Participants/materials, setting, methods
A total of 160 of 197 (81.2%) invited couples agreed to participate and 144 were randomized (72 per group; n = 16 not randomized as no embryo for transfer on day 3 or 5). Immediately after the embryo transfer and attention-control or intervention condition, women and their partners (independently) rated their expected IVF live birth rate on a numerical rating scale (0-100%) and filled out the ‘STAI-State-Anxiety Inventory’. Analysis was according to intention to treat principles.
Main results and the role of chance
Randomisation succeeded in distributing the background variables equally between the attention-control group (ACG) and intervention group (IG). Couples had a mean duration of infertility of 26 months (±14.6), a median of one previous oocyte aspiration (range: 1-4) and a mean personalized IVF prognosis of 29.7 (±16.2; range 3.3–75.5). The primary hypothesis was accepted: women of the intervention group, having received their personalized IVF-prognosis, were less likely to expect an unrealistic IVF-live birth rate of 100% or of twice as high as their personalized IVF-prognosis (IG: n = 23/69 or 33.3% vs. ACG: 34/66 or 51.522%; p = 0.03). A trend in the same direction was observed in men (IG: 26/63 or 41.27% vs. ACG: 34/60 or 56.67%; p = 0.09). Focussing on the subgroup of couples with a below average prognosis (<30%; n = 76), in which the hypothesised effect seems most likely, confirmed the intervention effect in women (p = 0.016) and the lack thereof in men (p = 0.15). Receiving the intervention during embryo transfer affected state anxiety immediately after the embryo transfer in women (IG: 39.5±10.0 vs. 39.5±10.1; p = 0.54) nor men (IG: 37.6±9.1 vs. 37.1±7.7; p = 0.41). The vast majority of patients would advise the feedback to others, irrespective of having received their personalized prognosis (women: p = 0.9; men p = 0.4).
Limitations, reasons for caution
This RCT was powered for analysing the primary outcome in the entire sample, but not for the subgroup analysis. Whether the effect of sharing personalized IVF-prognoses on women's expectations translates into an effect on IVF-discontinuation, and hence cumulative success rates, is currently followed up.
Wider implications of the findings
Clinics are advised to offer patients their personalized IVF-prognosis as this limits the likelihood of unrealistic expectations in women, without triggering anxious reactions. The proportion of women and men with unrealistic expectations, however, remained high and men did not respond to our feedback.
Trial registration number
NCT04169295
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Affiliation(s)
- J Devroe
- Leuven University Hospital, Gynaecology, Leuven , Belgium
- Laboratory of Endometrium- Endometriosis & Reproductive Medicine, Department of Development and Regeneration KU Leuven, Leuven , Belgium
| | - K Peeraer
- Leuven University Hospital, Gynaecology, Leuven , Belgium
- Laboratory of Endometrium- Endometriosis & Reproductive Medicine, Department of Development and Regeneration KU Leuven, Leuven , Belgium
| | - P De Loecker
- GZA Ziekenhuizen, Reproductive medicine, Antwerpen , Belgium
| | - L Dias
- GZA Ziekenhuizen, Reproductive medicine, Antwerpen , Belgium
| | - J Vriens
- Laboratory of Endometrium- Endometriosis & Reproductive Medicine, Department of Development and Regeneration KU Leuven, Leuven , Belgium
| | - E Dancet
- Leuven University Hospital, Gynaecology, Leuven , Belgium
- Laboratory of Endometrium- Endometriosis & Reproductive Medicine, Department of Development and Regeneration KU Leuven, Leuven , Belgium
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12
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Van den Eynde C, Held K, Ciprietti M, De Clercq K, Kerselaers S, Marchand A, Chaltin P, Voets T, Vriens J. Loratadine, an antihistaminic drug, suppresses the proliferation of endometrial stromal cells by inhibition of TRPV2. Eur J Pharmacol 2022; 928:175086. [PMID: 35714693 DOI: 10.1016/j.ejphar.2022.175086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 06/01/2022] [Accepted: 06/01/2022] [Indexed: 11/03/2022]
Abstract
The transient receptor potential (TRP) channel TRPV2 is widely expressed in a variety of different cell types and tissues. However, elucidating the exact biological functions of TRPV2 is significantly hampered by the lack of selective pharmacological tools to modulate channel activity in vitro and in vivo. This study aimed to identify new compounds that modify TRPV2 activity via the use of a plate-based calcium imaging approach to screen a drug repurposing library. Three antihistaminic drugs, loratadine, astemizole and clemizole were identified to reduce calcium-influx evoked by the TRPV2 agonist tetrahydrocannabivarin in HEK293 cells expressing murine TRPV2. Using single-cell calcium-microfluorimetry and whole-cell patch clamp recordings, we further confirmed that all three compounds induced a concentration-dependent block of TRPV2-mediated Ca2+ influx and whole-cell currents, with loratadine being the most potent antagonist of TRPV2. Moreover, this study demonstrated that loratadine was able to block both the human and mouse TRPV2 orthologs, without inhibiting the activity of other closely related members of the TRPV superfamily. Finally, loratadine inhibited TRPV2-dependent responses in a primary culture of mouse endometrial stromal cells and attenuated cell proliferation and migration in in vitro cell proliferation and wound healing assays. Taken together, our study revealed that the antihistaminic drugs loratadine, astemizole and clemizole target TRPV2 in a concentration-dependent manner. The identification of these antihistaminic drugs as blockers of TRPV2 may form a new starting point for the synthesis of more potent and selective TRPV2 antagonists, which could further lead to the unravelling of the physiological role of the channel.
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Affiliation(s)
- Charlotte Van den Eynde
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000, Leuven, Belgium; Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven; VIB Center for Brain & Disease Research, Herestraat 49 box 802, 3000, Leuven, Belgium
| | - Katharina Held
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000, Leuven, Belgium; Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven; VIB Center for Brain & Disease Research, Herestraat 49 box 802, 3000, Leuven, Belgium
| | - Martina Ciprietti
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000, Leuven, Belgium; Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven; VIB Center for Brain & Disease Research, Herestraat 49 box 802, 3000, Leuven, Belgium
| | - Katrien De Clercq
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000, Leuven, Belgium; Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven; VIB Center for Brain & Disease Research, Herestraat 49 box 802, 3000, Leuven, Belgium
| | - Sara Kerselaers
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven; VIB Center for Brain & Disease Research, Herestraat 49 box 802, 3000, Leuven, Belgium
| | - Arnaud Marchand
- CISTIM Leuven vzw, Gaston Geenslaan 2, 3001, Leuven, Heverlee, Belgium
| | - Patrick Chaltin
- CISTIM Leuven vzw, Gaston Geenslaan 2, 3001, Leuven, Heverlee, Belgium; Centre for Drug Design and Discovery (CD3), KU Leuven, Gaston Geenslaan 2, 3001, Leuven, Heverlee, Belgium
| | - Thomas Voets
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven; VIB Center for Brain & Disease Research, Herestraat 49 box 802, 3000, Leuven, Belgium
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000, Leuven, Belgium.
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13
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Veys K, Berlingerio SP, David D, Bondue T, Held K, Reda A, van den Broek M, Theunis K, Janssen M, Cornelissen E, Vriens J, Diomedi-Camassei F, Gijsbers R, van den Heuvel L, Arcolino FO, Levtchenko E. Urine-Derived Kidney Progenitor Cells in Cystinosis. Cells 2022; 11:cells11071245. [PMID: 35406807 PMCID: PMC8997687 DOI: 10.3390/cells11071245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/14/2022] [Accepted: 03/31/2022] [Indexed: 12/10/2022] Open
Abstract
Nephropathic cystinosis is an inherited lysosomal storage disorder caused by pathogenic variants in the cystinosin (CTNS) gene and is characterized by the excessive shedding of proximal tubular epithelial cells (PTECs) and podocytes into urine, development of the renal Fanconi syndrome and end-stage kidney disease (ESKD). We hypothesized that in compensation for epithelial cell losses, cystinosis kidneys undertake a regenerative effort, and searched for the presence of kidney progenitor cells (KPCs) in the urine of cystinosis patients. Urine was cultured in a specific progenitor medium to isolate undifferentiated cells. Of these, clones were characterized by qPCR, subjected to a differentiation protocol to PTECs and podocytes and assessed by qPCR, Western blot, immunostainings and functional assays. Cystinosis patients voided high numbers of undifferentiated cells in urine, of which various clonal cell lines showed a high capacity for self-renewal and expressed kidney progenitor markers, which therefore were assigned as cystinosis urine-derived KPCs (Cys-uKPCs). Cys-uKPC clones showed the capacity to differentiate between functional PTECs and/or podocytes. Gene addition with wild-type CTNS using lentiviral vector technology resulted in significant reductions in cystine levels. We conclude that KPCs present in the urine of cystinosis patients can be isolated, differentiated and complemented with CTNS in vitro, serving as a novel tool for disease modeling.
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Affiliation(s)
- Koenraad Veys
- Department of Pediatrics, University Hospitals Leuven Campus Gasthuisberg, B-3000 Leuven, Belgium;
- Laboratory of Pediatric Nephrology, Department of Development & Regeneration, KU Leuven Campus Gasthuisberg, B-3000 Leuven, Belgium; (S.P.B.); (T.B.); (A.R.); (L.v.d.H.); (F.O.A.)
| | - Sante Princiero Berlingerio
- Laboratory of Pediatric Nephrology, Department of Development & Regeneration, KU Leuven Campus Gasthuisberg, B-3000 Leuven, Belgium; (S.P.B.); (T.B.); (A.R.); (L.v.d.H.); (F.O.A.)
| | - Dries David
- Laboratory for Viral Vector Technology and Gene Therapy, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven Campus Gasthuisberg, B-3000 Leuven, Belgium; (D.D.); (R.G.)
| | - Tjessa Bondue
- Laboratory of Pediatric Nephrology, Department of Development & Regeneration, KU Leuven Campus Gasthuisberg, B-3000 Leuven, Belgium; (S.P.B.); (T.B.); (A.R.); (L.v.d.H.); (F.O.A.)
| | - Katharina Held
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine (LEERM), Department of Development & Regeneration, KU Leuven Campus Gasthuisberg, B-3000 Leuven, Belgium; (K.H.); (J.V.)
| | - Ahmed Reda
- Laboratory of Pediatric Nephrology, Department of Development & Regeneration, KU Leuven Campus Gasthuisberg, B-3000 Leuven, Belgium; (S.P.B.); (T.B.); (A.R.); (L.v.d.H.); (F.O.A.)
| | - Martijn van den Broek
- Department of Pathology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6524 Nijmegen, The Netherlands;
- Department of Pediatrics, Division of Pediatric Nephrology, Amalia Children’s Hospital, Radboud University Medical Center, 6524 Nijmegen, The Netherlands;
| | - Koen Theunis
- Department of Human Genetics, KU Leuven Campus Gasthuisberg, B-3000 Leuven, Belgium;
| | - Mirian Janssen
- Department of Internal Medicine, Radboud University Medical Center, 6524 Nijmegen, The Netherlands;
| | - Elisabeth Cornelissen
- Department of Pediatrics, Division of Pediatric Nephrology, Amalia Children’s Hospital, Radboud University Medical Center, 6524 Nijmegen, The Netherlands;
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine (LEERM), Department of Development & Regeneration, KU Leuven Campus Gasthuisberg, B-3000 Leuven, Belgium; (K.H.); (J.V.)
| | - Francesca Diomedi-Camassei
- Unit of Pathology, Department of Laboratories, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy;
| | - Rik Gijsbers
- Laboratory for Viral Vector Technology and Gene Therapy, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven Campus Gasthuisberg, B-3000 Leuven, Belgium; (D.D.); (R.G.)
- Leuven Viral Vector Core, KU Leuven, B-3000 Leuven, Belgium
| | - Lambertus van den Heuvel
- Laboratory of Pediatric Nephrology, Department of Development & Regeneration, KU Leuven Campus Gasthuisberg, B-3000 Leuven, Belgium; (S.P.B.); (T.B.); (A.R.); (L.v.d.H.); (F.O.A.)
- Department of Pediatrics, Division of Pediatric Nephrology, Amalia Children’s Hospital, Radboud University Medical Center, 6524 Nijmegen, The Netherlands;
| | - Fanny O. Arcolino
- Laboratory of Pediatric Nephrology, Department of Development & Regeneration, KU Leuven Campus Gasthuisberg, B-3000 Leuven, Belgium; (S.P.B.); (T.B.); (A.R.); (L.v.d.H.); (F.O.A.)
| | - Elena Levtchenko
- Department of Pediatrics, University Hospitals Leuven Campus Gasthuisberg, B-3000 Leuven, Belgium;
- Laboratory of Pediatric Nephrology, Department of Development & Regeneration, KU Leuven Campus Gasthuisberg, B-3000 Leuven, Belgium; (S.P.B.); (T.B.); (A.R.); (L.v.d.H.); (F.O.A.)
- Correspondence: ; Tel.: +32-16-34-13-62
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14
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Lines MA, Goldenberg P, Wong A, Srivastava S, Bayat A, Hove H, Karstensen HG, Anyane-Yeboa K, Liao J, Jiang N, May A, Guzman E, Morleo M, D'Arrigo S, Ciaccio C, Pantaleoni C, Castello R, McKee S, Ong J, Zibdeh-Lough H, Tran-Mau-Them F, Gerasimenko A, Heron D, Keren B, Margot H, de Sainte Agathe JM, Burglen L, Voets T, Vriens J, Innes AM, Dyment DA. Phenotypic spectrum of the recurrent TRPM3 p.(Val837Met) substitution in seven individuals with global developmental delay and hypotonia. Am J Med Genet A 2022; 188:1667-1675. [PMID: 35146895 DOI: 10.1002/ajmg.a.62673] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 01/08/2022] [Accepted: 01/13/2022] [Indexed: 11/11/2022]
Abstract
TRPM3 encodes a transient receptor potential cation channel of the melastatin family, expressed in the central nervous system and in peripheral sensory neurons of the dorsal root ganglia. The recurrent substitution in TRPM3: c.2509G>A, p.(Val837Met) has been associated with syndromic intellectual disability and seizures. In this report, we present the clinical and molecular features of seven previously unreported individuals, identified by exome sequencing, with the recurrent p.(Val837Met) variant and global developmental delay. Other shared clinical features included congenital hypotonia, dysmorphic facial features (broad forehead, deep-set eyes, and down turned mouth), exotropia, and musculoskeletal issues (hip dysplasia, hip dislocation, scoliosis). Seizures were observed in two of seven individuals (febrile seizure in one and generalized tonic-clonic seizures with atonic drops in another), and epileptiform activity was observed in an additional two individuals. This report extends the number of affected individuals to 16 who are heterozygous for the de novo recurrent substitution p.(Val837Met). In contrast with the initial report, epilepsy was not a mandatory feature observed in this series. TRPM3 pathogenic variation should be considered in individuals with global developmental delays, moderate-severe intellectual disability with, or without, childhood-onset epilepsy.
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Affiliation(s)
- Matthew A Lines
- Department of Medical Genetics and Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Paula Goldenberg
- Medical Genetics Unit, Department of Pediatrics, MassGeneral Hospital for Children, Boston, Massachusetts, USA
| | - Ashley Wong
- Medical Genetics Unit, Department of Pediatrics, MassGeneral Hospital for Children, Boston, Massachusetts, USA
| | | | - Allan Bayat
- Department of Epilepsy Genetics and Personalized Medicine, Filadelfia Epilepsy Hospital, Dianalund, Denmark.,Institute for Regional Health Services, University of Southern Denmark, Odense, Denmark
| | - Hanne Hove
- Department of Pediatrics, Center of Rare Diseases, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Helena Gásdal Karstensen
- Department of Genetics, Center of Diagnostics, Copenhagen University Hospital - Rigshospitalet, Rigshospitalet, Denmark
| | - Kwame Anyane-Yeboa
- Division of Clinical Genetics, Department of Pediatrics, Columbia University Irving Medical Center, New York, New York, USA
| | - Jun Liao
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York, USA
| | - Nan Jiang
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York, USA
| | - Alison May
- Division of Child Neurology, Department of Neurology, Columbia University Irving Medical Center, New York, New York, USA
| | - Edwin Guzman
- Division of Clinical Genetics, Department of Pediatrics, New York Presbyterian Hospital, Columbia University, New York, New York, USA
| | - Manuela Morleo
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy.,Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Stefano D'Arrigo
- Department of Pediatric Neuroscience, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Claudia Ciaccio
- Department of Pediatric Neuroscience, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Chiara Pantaleoni
- Department of Pediatric Neuroscience, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Raffaele Castello
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy
| | -
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy
| | - Shane McKee
- Northern Ireland Regional Genetics Service, Belfast, UK
| | - Jinfon Ong
- Child Neurology Consultants of Austin, Austin, Texas, USA
| | - Hana Zibdeh-Lough
- Department of Pediatrics, Dell Children's Medical Center of Central Texas, Austin, Texas, USA
| | | | - Anna Gerasimenko
- APHP Sorbonne Université, GH Pitié Salpêtriére et Trousseau, Département de Génétique, Centre de référence "déficiences intellectuelles de causes rares", Paris, France
| | - Delphine Heron
- APHP Sorbonne Université, GH Pitié Salpêtriére et Trousseau, Département de Génétique, Centre de référence "déficiences intellectuelles de causes rares", Paris, France
| | - Boris Keren
- APHP Sorbonne Université, GH Pitié Salpêtriére et Trousseau, Département de Génétique, Centre de référence "déficiences intellectuelles de causes rares", Paris, France
| | - Henri Margot
- Universitie Bordeaux, MRGM INSERM U1211, CHU de Bordeaux, Service de Génétique Médicale, Bordeaux, France
| | - Jean-Madeleine de Sainte Agathe
- APHP Sorbonne Université, GH Pitié Salpêtriére et Trousseau, Département de Génétique, Centre de référence "déficiences intellectuelles de causes rares", Paris, France
| | - Lydie Burglen
- APHP, Sorbonne Université, Hôpital TROUSSEAU, Centre de Référence des Malformations et Maladies Congénitales du Cervelet et Département de Génétique, Paris, France
| | - Thomas Voets
- Laboratory of Ion Channel Research and TRP Research Platform Leuven (TRPLe), Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium.,VIB Center for Brain & Disease Research, Leuven, Belgium
| | - Joris Vriens
- Laboratory of Experimental Gynecology and Obstetrics, Department of Development and Regeneration, University of Leuven, Leuven, Belgium
| | - A Micheil Innes
- Department of Medical Genetics and Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - David A Dyment
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, Canada
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15
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Persoons E, Kerselaers S, Voets T, Vriens J, Held K. Partial Agonistic Actions of Sex Hormone Steroids on TRPM3 Function. Int J Mol Sci 2021; 22:13652. [PMID: 34948452 PMCID: PMC8708174 DOI: 10.3390/ijms222413652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 12/16/2021] [Accepted: 12/17/2021] [Indexed: 11/23/2022] Open
Abstract
Sex hormone steroidal drugs were reported to have modulating actions on the ion channel TRPM3. Pregnenolone sulphate (PS) presents the most potent known endogenous chemical agonist of TRPM3 and affects several gating modes of the channel. These includes a synergistic action of PS and high temperatures on channel opening and the PS-induced opening of a noncanonical pore in the presence of other TRPM3 modulators. Moreover, human TRPM3 variants associated with neurodevelopmental disease exhibit an increased sensitivity for PS. However, other steroidal sex hormones were reported to influence TRPM3 functions with activating or inhibiting capacity. Here, we aimed to answer how DHEAS, estradiol, progesterone and testosterone act on the various modes of TRPM3 function in the wild-type channel and two-channel variants associated with human disease. By means of calcium imaging and whole-cell patch clamp experiments, we revealed that all four drugs are weak TRPM3 agonists that share a common steroidal interaction site. Furthermore, they exhibit increased activity on TRPM3 at physiological temperatures and in channels that carry disease-associated mutations. Finally, all steroids are able to open the noncanonical pore in wild-type and DHEAS also in mutant TRPM3. Collectively, our data provide new valuable insights in TRPM3 gating, structure-function relationships and ligand sensitivity.
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Affiliation(s)
- Eleonora Persoons
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 Box 611, 3000 Leuven, Belgium; (E.P.); (K.H.)
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, Herestraat 49 Box 802, 3000 Leuven, Belgium; (S.K.); (T.V.)
| | - Sara Kerselaers
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, Herestraat 49 Box 802, 3000 Leuven, Belgium; (S.K.); (T.V.)
| | - Thomas Voets
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, Herestraat 49 Box 802, 3000 Leuven, Belgium; (S.K.); (T.V.)
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 Box 611, 3000 Leuven, Belgium; (E.P.); (K.H.)
| | - Katharina Held
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 Box 611, 3000 Leuven, Belgium; (E.P.); (K.H.)
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, Herestraat 49 Box 802, 3000 Leuven, Belgium; (S.K.); (T.V.)
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16
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Alexander SP, Mathie A, Peters JA, Veale EL, Striessnig J, Kelly E, Armstrong JF, Faccenda E, Harding SD, Pawson AJ, Southan C, Davies JA, Aldrich RW, Attali B, Baggetta AM, Becirovic E, Biel M, Bill RM, Catterall WA, Conner AC, Davies P, Delling M, Virgilio FD, Falzoni S, Fenske S, George C, Goldstein SAN, Grissmer S, Ha K, Hammelmann V, Hanukoglu I, Jarvis M, Jensen AA, Kaczmarek LK, Kellenberger S, Kennedy C, King B, Kitchen P, Lynch JW, Perez-Reyes E, Plant LD, Rash L, Ren D, Salman MM, Sivilotti LG, Smart TG, Snutch TP, Tian J, Trimmer JS, Van den Eynde C, Vriens J, Wei AD, Winn BT, Wulff H, Xu H, Yue L, Zhang X, Zhu M. THE CONCISE GUIDE TO PHARMACOLOGY 2021/22: Ion channels. Br J Pharmacol 2021; 178 Suppl 1:S157-S245. [PMID: 34529831 DOI: 10.1111/bph.15539] [Citation(s) in RCA: 159] [Impact Index Per Article: 53.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The Concise Guide to PHARMACOLOGY 2021/22 is the fifth in this series of biennial publications. The Concise Guide provides concise overviews, mostly in tabular format, of the key properties of nearly 1900 human drug targets with an emphasis on selective pharmacology (where available), plus links to the open access knowledgebase source of drug targets and their ligands (www.guidetopharmacology.org), which provides more detailed views of target and ligand properties. Although the Concise Guide constitutes over 500 pages, the material presented is substantially reduced compared to information and links presented on the website. It provides a permanent, citable, point-in-time record that will survive database updates. The full contents of this section can be found at http://onlinelibrary.wiley.com/doi/bph.15539. Ion channels are one of the six major pharmacological targets into which the Guide is divided, with the others being: G protein-coupled receptors, nuclear hormone receptors, catalytic receptors, enzymes and transporters. These are presented with nomenclature guidance and summary information on the best available pharmacological tools, alongside key references and suggestions for further reading. The landscape format of the Concise Guide is designed to facilitate comparison of related targets from material contemporary to mid-2021, and supersedes data presented in the 2019/20, 2017/18, 2015/16 and 2013/14 Concise Guides and previous Guides to Receptors and Channels. It is produced in close conjunction with the Nomenclature and Standards Committee of the International Union of Basic and Clinical Pharmacology (NC-IUPHAR), therefore, providing official IUPHAR classification and nomenclature for human drug targets, where appropriate.
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Affiliation(s)
- Stephen Ph Alexander
- School of Life Sciences, University of Nottingham Medical School, Nottingham, NG7 2UH, UK
| | - Alistair Mathie
- School of Engineering, Arts, Science and Technology, University of Suffolk, Ipswich, IP4 1QJ, UK
| | - John A Peters
- Neuroscience Division, Medical Education Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee, DD1 9SY, UK
| | - Emma L Veale
- Medway School of Pharmacy, The Universities of Greenwich and Kent at Medway, Anson Building, Central Avenue, Chatham Maritime, Chatham, Kent, ME4 4TB, UK
| | - Jörg Striessnig
- Pharmacology and Toxicology, Institute of Pharmacy, University of Innsbruck, A-6020 Innsbruck, Austria
| | - Eamonn Kelly
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, BS8 1TD, UK
| | - Jane F Armstrong
- Centre for Discovery Brain Science, University of Edinburgh, Edinburgh, EH8 9XD, UK
| | - Elena Faccenda
- Centre for Discovery Brain Science, University of Edinburgh, Edinburgh, EH8 9XD, UK
| | - Simon D Harding
- Centre for Discovery Brain Science, University of Edinburgh, Edinburgh, EH8 9XD, UK
| | - Adam J Pawson
- Centre for Discovery Brain Science, University of Edinburgh, Edinburgh, EH8 9XD, UK
| | - Christopher Southan
- Centre for Discovery Brain Science, University of Edinburgh, Edinburgh, EH8 9XD, UK
| | - Jamie A Davies
- Centre for Discovery Brain Science, University of Edinburgh, Edinburgh, EH8 9XD, UK
| | | | | | | | | | - Martin Biel
- Ludwig Maximilian University of Munich, Munich, Germany
| | | | | | | | - Paul Davies
- Tufts University School of Medicine, Boston, MA, USA
| | - Markus Delling
- University of California San Francisco, San Francisco, CA, USA
| | | | | | | | - Chandy George
- Nanyang Technological University, Singapore, Singapore
| | | | | | - Kotdaji Ha
- University of California San Francisco, San Francisco, CA, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Dejian Ren
- University of Pennsylvania, Philadelphia, USA
| | | | | | | | | | - Jinbin Tian
- University of Texas at Houston, Houston, TX, USA
| | | | | | | | | | | | | | - Haoxing Xu
- University of Michigan, Ann Arbor, MI, USA
| | - Lixia Yue
- University of Connecticut, Farmington, CT, USA
| | | | - Michael Zhu
- University of Texas at Houston, Houston, TX, USA
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17
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De Clercq K, López-Tello J, Katanosaka Y, Voets T, Sferruzzi-Perri AN, Vriens J. Strain-specific adaptations in placental transport function optimise fetal outcomes in mice lacking TRPV2. Placenta 2021. [DOI: 10.1016/j.placenta.2021.07.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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18
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Devroe J, Peeraer K, D’Hooghe T, Boivin J, Vriens J, Dancet E. O-196 The impact of providing couples with their IVF-prognosis on the expectations and anxiety of women and men. Hum Reprod 2021. [DOI: 10.1093/humrep/deab128.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Study question
What is the impact of providing couples with their IVF-prognosis on expectations and anxiety in women and men on the day of embryo transfer?
Summary answer
Only couples with a less than average IVF-prognosis updated their high expectations and IVF-prognosis was negatively associated with anxiety, especially in women.
What is known already
Female IVF-patients are known to expect a pregnancy rate per IVF-cycle of no less than 49-55%. Qualitative interviews and a survey showed that well informed women expect unrealistically high pregnancy rates as they think that their (family’s) fertility and their clinic is better than average. Several prognostic models have recently been published. The adapted van Loendersloot model including clinical and laboratory characteristics proved performant for our clinic (AUC=0.74) and was validated internally (Devroe et al, BMJ Open, 2020). The impact of providing couples with their IVF-prognosis on expectations and wellbeing of female and male patients has yet to be studied.
Study design, size, duration
A prospective survey, questioning a final sample of 148 partnered individuals, completing their 2nd-6th IVF-cycle (2019-2020) in a University clinic, on the days of oocyte aspiration (OA) and fresh embryo transfer (ET). Thirty other partnered individuals declined participation (participation rate=85%) and 26 were excluded due to ET-cancellation. The IVF-prognosis (live birth rate, LBR, per completed IVF-cycle including fresh and frozen ETs from the same ovarian stimulation) was calculated with the adapted van Loendersloot model.
Participants/materials, setting, methods
Each partner reported their perception of their expected IVF-LBR on a visual analogue scale on the day OA. After being informed on their IVF-prognosis by gynaecologists, they re-rated their expected IVF-LBR and filled out the reliable ‘STAI-State-Anxiety Inventory’ on the day of fresh ET. Linear mixed models, taking account of partnering and assessing the association with gender, explored whether individuals updated their expected IVF-LBR after receiving their IVF-prognosis and whether IVF-prognosis and anxiety were associated.
Main results and the role of chance
The mean IVF-prognosis was 30.9% (±16.8). The 148 partnered individuals had a mean expected IVF-LBR of 59.1% (±20.0) on the day of OA (no gender effect; p = 0.079). After being informed on their IVF-prognosis (day of ET), women’s and men’s mean expected IVF-LBR was 50.9% (±24.5) and 58.1% (±22.1), respectively (gender effect; p = 0.002). Linear mixed models, including couple and time as random factors, did not show an effect of time on expected IVF-LBRs (p = 0.15). Although women were more likely than men to update their expected IVF-LBR (p = 0.002), the updates were not significantly different from the IVF-LBR expected on the day of OA (p = 0.10). Women were more anxious than men (41.5±10.6 and 21.9±7.2, respectively, p < 0.001) after being given their IVF-prognosis. Linear mixed models, including couple as a random factor, showed an association between IVF-prognosis and anxiety (p = 0.016), especially in women (gender effect; p = 0.004). Subgroup analysis showed that partnered individuals with lower than average prognoses (n = 78) did update their expected IVF-LBR (p = 0.036) while others (n = 70) did not update their expected IVF-LBR (p = 0.761). Among the subgroup with lower prognoses women were more likely to update their expected IVF-LBR than men (p = 0.013), while no gender effect was observed among the subgroup with higher IVF-prognoses (p = 0.078).
Limitations, reasons for caution
This is an explorative study in preparation of an adequately powered randomized controlled trial, testing whether couples who are informed on their IVF-prognosis update their expected IVF-LBR and whether this causes anxiety, as compared to care as usual in which couples are not informed on their IVF-prognosis.
Wider implications of the findings
Men and especially women with a less than average prognosis update their IVF-expectations after having received this prognosis which may trigger anxious reactions. These findings should be re-examined in an RCT. Following up the effect of sharing IVF-prognoses on longer-term distress and IVF-discontinuation would be interesting.
Trial registration number
not applicable
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Affiliation(s)
- J Devroe
- Leuven University Hospital, Gynaecology, Leuven, Belgium
- Laboratory of Endometrium- Endometriosis & Reproductive Medicine- KU Leuven, Department of Development and Regeneration, Leuven, Belgium
| | - K Peeraer
- Leuven University Hospital, Gynaecology, Leuven, Belgium
- Laboratory of Endometrium- Endometriosis & Reproductive Medicine- KU Leuven, Department of Development and Regeneration, Leuven, Belgium
| | - T D’Hooghe
- Global Medical Affairs Fertility- Merck Healthcare KGaA, Research and Development, Darmstadt, Germany
- Gynecology and Reproductive Sciences Yale School of Medicine, Department of Obstetrics-, New Haven- CT-, U.S.A
- KU Leuven, Department of Development and Regeneration, Leuven, Belgium
| | - J Boivin
- Cardiff University, School of Psychology, Cardiff, United Kingdom
| | - J Vriens
- Laboratory of Endometrium- Endometriosis & Reproductive Medicine- KU Leuven, Department of Development and Regeneration, Leuven, Belgium
| | - E Dancet
- Laboratory of Endometrium- Endometriosis & Reproductive Medicine- KU Leuven, Department of Development and Regeneration, Leuven, Belgium
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19
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Kelemen B, Pinto S, Kim N, Lisztes E, Hanyicska M, Vládar A, Oláh A, Pénzes Z, Shu B, Vriens J, Bíró T, Rohács T, Voets T, Tóth BI. The TRPM3 ion channel mediates nociception but not itch evoked by endogenous pruritogenic mediators. Biochem Pharmacol 2021; 183:114310. [PMID: 33130130 PMCID: PMC8086171 DOI: 10.1016/j.bcp.2020.114310] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 10/22/2020] [Accepted: 10/27/2020] [Indexed: 02/06/2023]
Abstract
During the molecular transduction of itch, the stimulation of pruriceptors on sensory fibers leads to the activation or sensitization of ion channels, which results in a consequent depolarization of the neurons. These ion channels mostly belong to the transient receptor potential (TRP) channels, which are involved in nociception and thermosensation. In particular, TRPV1 and TRPA1 were described in the transduction of both thermal nociception as well as histaminergic and non-histaminergic itch. The thermosensitive TRPM3 plays an indispensable role in heat nociception together with TRPV1 and TRPA1. However, the role of TRPM3 in the development of pruritus has not been studied yet. Therefore, in this study we aimed at investigating the potential role of TRPM3 in the transduction of pruritus and pain by investigating itch- and nociception-related behavior of Trpm3+/+ and Trpm3-/- mice, and by studying the activation of somatosensory neurons isolated from trigeminal ganglia upon application of algogenic and pruritogenic substances. Activators of TRPM3 evoked only nocifensive responses, but not itch in Trpm3+/+ animals, and these nocifensive responses were abolished in the Trpm3-/- strain. Histamine and endogenous non-histaminergic pruritogens induced itch in both Trpm3+/+ and Trpm3-/- mice to a similar extent. Genetic deletion or pharmacological blockade diminished TRPM3 mediated Ca2+ responses of sensory neurons, but did not affect responses evoked by pruritogenic substances. Our results demonstrate that, in contrast to other thermosensitive TRP channels, TRPM3 selectively mediates nociception, but not itch sensation, and suggest that TRPM3 is a promising candidate to selectively target pain sensation.
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Affiliation(s)
- Balázs Kelemen
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Laboratory of Ion Channel Research (VIB-KU Leuven Center for Brain & Disease Research) Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Doctoral School of Molecular Medicine, University of Debrecen, Debrecen, Hungary
| | - Silvia Pinto
- Laboratory of Ion Channel Research (VIB-KU Leuven Center for Brain & Disease Research) Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Nawoo Kim
- Department of Pharmacology, Physiology and Neuroscience, Rutgers New Jersey Medical School, Newark, NJ, United States
| | - Erika Lisztes
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Martin Hanyicska
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Doctoral School of Molecular Medicine, University of Debrecen, Debrecen, Hungary
| | - Anita Vládar
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Doctoral School of Molecular Medicine, University of Debrecen, Debrecen, Hungary
| | - Attila Oláh
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zsófia Pénzes
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Doctoral School of Molecular Medicine, University of Debrecen, Debrecen, Hungary
| | - Brian Shu
- Department of Pharmacology, Physiology and Neuroscience, Rutgers New Jersey Medical School, Newark, NJ, United States
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Tamás Bíró
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Tibor Rohács
- Department of Pharmacology, Physiology and Neuroscience, Rutgers New Jersey Medical School, Newark, NJ, United States
| | - Thomas Voets
- Laboratory of Ion Channel Research (VIB-KU Leuven Center for Brain & Disease Research) Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Balázs István Tóth
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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20
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Affiliation(s)
- Marie Mulier
- Laboratory of Ion Channel Research, VIB Center for Brain & Disease Research, Leuven, Belgium.,Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Ine Vandewauw
- Laboratory of Ion Channel Research, VIB Center for Brain & Disease Research, Leuven, Belgium.,Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, University of Leuven, Leuven, Belgium.
| | - Thomas Voets
- Laboratory of Ion Channel Research, VIB Center for Brain & Disease Research, Leuven, Belgium. .,Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium.
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21
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Devroe J, Peeraer K, Verbeke G, Spiessens C, Vriens J, Dancet E. Predicting the chance on live birth per cycle at each step of the IVF journey: external validation and update of the van Loendersloot multivariable prognostic model. BMJ Open 2020; 10:e037289. [PMID: 33033089 PMCID: PMC7545639 DOI: 10.1136/bmjopen-2020-037289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE To study the performance of the 'van Loendersloot' prognostic model for our clinic's in vitro fertilisation (IVF) in its original version, the refitted version and in an adapted version replacing previous by current cycle IVF laboratory variables. METHODS This retrospective cohort study in our academic tertiary fertility clinic analysed 1281 IVF cycles of 591 couples, who completed at least one 2nd-6th IVF cycle with own fresh gametes after a previous IVF cycle with the same partner in our clinic between 2010 and 2018. The outcome of interest was the chance on a live birth after one complete IVF cycle (including all fresh and frozen embryo transfers from the same episode of ovarian stimulation). Model performance was expressed in terms of discrimination (c-statistics) and calibration (calibration model, comparison of prognosis to observed ratios of five disjoint groups formed by the quintiles of the IVF prognoses and a calibration plot). RESULTS A total of 344 live births were obtained (26.9%). External validation of the original van Loendersloot model showed a poor c-statistic of 0.64 (95% CI: 0.61 to 0.68) and an underestimation of IVF success. The refitted and the adapted models showed c-statistics of respectively 0.68 (95% CI: 0.65 to 0.71) and 0.74 (95% CI: 0.70 to 0.77). Similar c-statistics were found with cross-validation. Both models showed a good calibration model; refitted model: intercept=0.00 (95% CI: -0.23 to 0.23) and slope=1.00 (95% CI: 0.79 to 1.21); adapted model: intercept=0.00 (95% CI: -0.18 to 0.18) and slope=1.00 (95% CI: 0.83 to 1.17). Prognoses and observed success rates of the disjoint groups matched well for the refitted model and even better for the adapted model. CONCLUSION External validation of the original van Loendersloot model indicated that model updating was recommended. The good performance of the refitted and adapted models allows informing couples about their IVF prognosis prior to an IVF cycle and at the time of embryo transfer. Whether this has an impact on couple's expected success rates, distress and IVF discontinuation can now be studied.
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Affiliation(s)
- Johanna Devroe
- Leuven University Fertility Centre, University Hospital Leuven, Leuven, Belgium
- Development and Regeneration, Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Leuven, Belgium
| | - Karen Peeraer
- Leuven University Fertility Centre, University Hospital Leuven, Leuven, Belgium
- Development and Regeneration, Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Leuven, Belgium
| | - Geert Verbeke
- Public Health and Primary Care, Leuven Biostatistics and statistical Bioinformatics Centre, Leuven, Belgium
- Interuniversity Institute for Biostatistics and Statistical Bioinformatics, Leuven, Belgium
| | - Carl Spiessens
- Leuven University Fertility Centre, University Hospital Leuven, Leuven, Belgium
| | - Joris Vriens
- Development and Regeneration, Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Leuven, Belgium
| | - Eline Dancet
- Leuven University Fertility Centre, University Hospital Leuven, Leuven, Belgium
- Development and Regeneration, Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Leuven, Belgium
- Postdoctoral fellow, Research Foundation, Flanders, Belgium
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22
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Abstract
Chronic pain treatment remains a sore challenge, and in our aging society, the number of patients reporting inadequate pain relief continues to grow. Current treatment options all have their drawbacks, including limited efficacy and the propensity of abuse and addiction; the latter is exemplified by the ongoing opioid crisis. Extensive research in the last few decades has focused on mechanisms underlying chronic pain states, thereby producing attractive opportunities for novel, effective and safe pharmaceutical interventions. Members of the transient receptor potential (TRP) ion channel family represent innovative targets to tackle pain sensation at the root. Three TRP channels, TRPV1, TRPM3, and TRPA1, are of particular interest, as they were identified as sensors of chemical- and heat-induced pain in nociceptor neurons. This review summarizes the knowledge regarding TRP channel-based pain therapies, including the bumpy road of the clinical development of TRPV1 antagonists, the current status of TRPA1 antagonists, and the future potential of targeting TRPM3.
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Affiliation(s)
- Dorien Bamps
- Center for Clinical Pharmacology, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, 3000 Leuven, Belgium
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium
| | - Jan de Hoon
- Center for Clinical Pharmacology, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, 3000 Leuven, Belgium
| | - Thomas Voets
- Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, 3000 Leuven, Belgium; .,Department of Cellular and Molecular Medicine, KU Leuven, 3000 Leuven, Belgium
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23
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Abstract
The hippocampus is a highly organized structure in the brain that is a part of the limbic system and is involved in memory formation and consolidation as well as the manifestation of severe brain disorders, including Alzheimer's disease and epilepsy. The hippocampus receives a high degree of intra- and inter-connectivity, securing a proper communication with internal and external brain structures. This connectivity is accomplished via different informational flows in the form of fiber pathways. Brain slices are a frequently used methodology when exploring neurophysiological functions of the hippocampus. Hippocampal brain slices can be used for several different applications, including electrophysiological recordings, light microscopic measurements as well as several molecular biological and histochemical techniques. Therefore, brain slices represent an ideal model system to assess protein functions, to investigate pathophysiological processes involved in neurological disorders as well as for drug discovery purposes. There exist several different ways of slice preparations. Brain slice preparations with a vibratome allow a better preservation of the tissue structure and guarantee a sufficient oxygen supply during slicing, which present advantages over the traditional use of a tissue chopper. Moreover, different cutting planes can be applied for vibratome brain slice preparations. Here, a detailed protocol for a successful preparation of vibratome-cut horizontal hippocampal slices of mouse brains is provided. In contrast to other slice preparations, horizontal slicing allows to keep the fibers of the hippocampal input path (perforant path) in a fully intact state within a slice, which facilitates the investigation of entorhinal-hippocampal interactions. Here, we provide a thorough protocol for the dissection, extraction, and acute horizontal slicing of the murine brain, and discuss challenges and potential pitfalls of this technique. Finally, we will show some examples for the use of brain slices in further applications.
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Affiliation(s)
- Evelien Van Hoeymissen
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven; Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, Leuven, Belgium and Department of Molecular Medicine, KU Leuven
| | - Koenraad Philippaert
- Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, Leuven, Belgium and Department of Molecular Medicine, KU Leuven
| | - Rudi Vennekens
- Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, Leuven, Belgium and Department of Molecular Medicine, KU Leuven
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven
| | - Katharina Held
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven; Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, Leuven, Belgium and Department of Molecular Medicine, KU Leuven;
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24
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Mulier M, Van Ranst N, Corthout N, Munck S, Vanden Berghe P, Vriens J, Voets T, Moilanen L. Upregulation of TRPM3 in nociceptors innervating inflamed tissue. eLife 2020; 9:61103. [PMID: 32880575 PMCID: PMC7470828 DOI: 10.7554/elife.61103] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 08/20/2020] [Indexed: 12/14/2022] Open
Abstract
Genetic ablation or pharmacological inhibition of the heat-activated cation channel TRPM3 alleviates inflammatory heat hyperalgesia, but the underlying mechanisms are unknown. We induced unilateral inflammation of the hind paw in mice, and directly compared expression and function of TRPM3 and two other heat-activated TRP channels (TRPV1 and TRPA1) in sensory neurons innervating the ipsilateral and contralateral paw. We detected increased Trpm3 mRNA levels in dorsal root ganglion neurons innervating the inflamed paw, and augmented TRP channel-mediated calcium responses, both in the cell bodies and the intact peripheral endings of nociceptors. In particular, inflammation provoked a pronounced increase in nociceptors with functional co-expression of TRPM3, TRPV1 and TRPA1. Finally, pharmacological inhibition of TRPM3 dampened TRPV1- and TRPA1-mediated responses in nociceptors innervating the inflamed paw, but not in those innervating healthy tissue. These insights into the mechanisms underlying inflammatory heat hypersensitivity provide a rationale for developing TRPM3 antagonists to treat pathological pain.
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Affiliation(s)
- Marie Mulier
- Laboratory of Ion Channel Research (LICR), VIB-KU Leuven Centre for Brain & Disease Research, Leuven, Belgium.,Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Nele Van Ranst
- Laboratory of Ion Channel Research (LICR), VIB-KU Leuven Centre for Brain & Disease Research, Leuven, Belgium.,Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Nikky Corthout
- VIB Bio Imaging Core and VIB-KU Leuven Centre for Brain & Disease Research, Leuven, Belgium.,Department of Neuroscience, KU Leuven, Leuven, Belgium
| | - Sebastian Munck
- VIB Bio Imaging Core and VIB-KU Leuven Centre for Brain & Disease Research, Leuven, Belgium.,Department of Neuroscience, KU Leuven, Leuven, Belgium
| | - Pieter Vanden Berghe
- Laboratory for Enteric NeuroScience (LENS), TARGID, Department of Chronic Diseases Metabolism and Ageing, KU Leuven, Leuven, Belgium
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, G-PURE, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Thomas Voets
- Laboratory of Ion Channel Research (LICR), VIB-KU Leuven Centre for Brain & Disease Research, Leuven, Belgium.,Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Lauri Moilanen
- Laboratory of Ion Channel Research (LICR), VIB-KU Leuven Centre for Brain & Disease Research, Leuven, Belgium.,Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
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25
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Held K, Aloi VD, Freitas ACN, Janssens A, Segal A, Przibilla J, Philipp SE, Wang YT, Voets T, Vriens J. Pharmacological properties of TRPM3 isoforms are determined by the length of the pore loop. Br J Pharmacol 2020; 179:3560-3575. [PMID: 32780479 PMCID: PMC9290681 DOI: 10.1111/bph.15223] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/17/2020] [Accepted: 07/08/2020] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND AND PURPOSE Transient receptor potential melastatin 3 (TRPM3) is a non-selective cation channel that plays a pivotal role in the peripheral nervous system as a transducer of painful heat signals. Alternative splicing gives rise to several TRPM3 variants. The functional consequences of these splice isoforms are poorly understood. Here, the pharmacological properties of TRPM3 variants arising from alternative splicing in the pore-forming region were compared. EXPERIMENTAL APPROACH Calcium microfluorimetry and patch clamp recordings were used to compare the properties of heterologously expressed TRPM3α1 (long pore variant) and TRPM3α2-α6 (short pore variants). Furthermore, site-directed mutagenesis was done to investigate the influence of the length of the pore loop on the channel function. KEY RESULTS All short pore loop TRPM3α variants (TRPM3α2-α6) were activated by the neurosteroid pregnenolone sulphate (PS) and by nifedipine, whereas the long pore loop variant TRPM3α1 was insensitive to either compound. In contrast, TRPM3α1 was robustly activated by clotrimazole, a compound that does not directly activate the short pore variants but potentiates their responses to PS. Clotrimazole-activated TRPM3α1 currents were largely insensitive to established TRPM3α2 antagonists and were only partially inhibited upon activation of the μ opioid receptor. Finally, by creating a set of mutant channels with pore loops of intermediate length, we showed that the length of the pore loop dictates differential channel activation by PS and clotrimazole. CONCLUSION AND IMPLICATIONS Alternative splicing in the pore-forming region of TRPM3 defines the channel's pharmacological properties, which depend critically on the length of the pore-forming loop.
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Affiliation(s)
- Katharina Held
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Leuven, Belgium.,Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, Leuven, Belgium.,Department of Molecular Medicine, KU Leuven, Leuven, Belgium.,DM Centre for Brain Health, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Vincenzo Davide Aloi
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Leuven, Belgium.,Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, Leuven, Belgium.,Department of Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Ana Cristina Nogueira Freitas
- Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, Leuven, Belgium.,Department of Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Annelies Janssens
- Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, Leuven, Belgium.,Department of Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Andrei Segal
- Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, Leuven, Belgium.,Department of Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Julia Przibilla
- Experimental and Clinical Pharmacology and Toxicology/Center for Molecular Signaling (PZMS), Saarland University, Homburg, Germany
| | - Stephan Ernst Philipp
- Experimental and Clinical Pharmacology and Toxicology/Center for Molecular Signaling (PZMS), Saarland University, Homburg, Germany
| | - Yu Tian Wang
- DM Centre for Brain Health, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Thomas Voets
- Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, Leuven, Belgium.,Department of Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
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26
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Van Hoeymissen E, Held K, Nogueira Freitas AC, Janssens A, Voets T, Vriens J. Gain of channel function and modified gating properties in TRPM3 mutants causing intellectual disability and epilepsy. eLife 2020; 9:57190. [PMID: 32427099 PMCID: PMC7253177 DOI: 10.7554/elife.57190] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 05/13/2020] [Indexed: 12/11/2022] Open
Abstract
Developmental and epileptic encephalopathies (DEE) are a heterogeneous group of disorders characterized by epilepsy with comorbid intellectual disability. Recently, two de novo heterozygous mutations in the gene encoding TRPM3, a calcium permeable ion channel, were identified as the cause of DEE in eight probands, but the functional consequences of the mutations remained elusive. Here we demonstrate that both mutations (V990M and P1090Q) have distinct effects on TRPM3 gating, including increased basal activity, higher sensitivity to stimulation by the endogenous neurosteroid pregnenolone sulfate (PS) and heat, and altered response to ligand modulation. Most strikingly, the V990M mutation affected the gating of the non-canonical pore of TRPM3, resulting in large inward cation currents via the voltage sensor domain in response to PS stimulation. Taken together, these data indicate that the two DEE mutations in TRPM3 result in a profound gain of channel function, which may lie at the basis of epileptic activity and neurodevelopmental symptoms in the patients.
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Affiliation(s)
- Evelien Van Hoeymissen
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, Leuven, Belgium.,Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, Belgium and Department of Molecular Medicine, Leuven, Belgium
| | - Katharina Held
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, Leuven, Belgium.,Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, Belgium and Department of Molecular Medicine, Leuven, Belgium
| | - Ana Cristina Nogueira Freitas
- Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, Belgium and Department of Molecular Medicine, Leuven, Belgium
| | - Annelies Janssens
- Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, Belgium and Department of Molecular Medicine, Leuven, Belgium
| | - Thomas Voets
- Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, Belgium and Department of Molecular Medicine, Leuven, Belgium
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, Leuven, Belgium
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27
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Persoons E, De Clercq K, Van den Eynde C, Pinto SJPC, Luyten K, Van Bree R, Tomassetti C, Voets T, Vriens J. Mimicking Sampson's Retrograde Menstrual Theory in Rats: A New Rat Model for Ongoing Endometriosis-Associated Pain. Int J Mol Sci 2020; 21:ijms21072326. [PMID: 32230898 PMCID: PMC7177935 DOI: 10.3390/ijms21072326] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/23/2020] [Accepted: 03/25/2020] [Indexed: 12/16/2022] Open
Abstract
Endometriosis is a prevalent gynecologic disease, defined by dysfunctional endometrium-like lesions outside of the uterine cavity. These lesions are presumably established via retrograde menstruation, i.e., endometrial tissue that flows backwards during menses into the abdomen and deposits on the organs. As ongoing pain is one of the main pain symptoms of patients, an animal model that illuminates this problem is highly anticipated. In the present study, we developed and validated a rat model for ongoing endometriosis-associated pain. First, menstrual endometrial tissue was successfully generated in donor rats, as validated by gross examination, histology and qPCR. Next, endometriosis was induced in recipient animals by intraperitoneal injection of menstrual tissue. This resulted in neuro-angiogenesis as well as established endometriosis lesions, which were similar to their human counterparts, since epithelial and stromal cells were observed. Furthermore, significant differences were noted between control and endometriosis animals concerning bodyweight and posture changes, indicating the presence of ongoing pain in animals with endometriosis. In summary, a rat model for endometriosis was established that reliably mimics the human pathophysiology of endometriosis and in which signs of ongoing pain were detected, thus providing a new research tool for therapy development.
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Affiliation(s)
- Eleonora Persoons
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000 Leuven, Belgium; (E.P.); (K.D.C.); (C.V.d.E.); (K.L.); (R.V.B.); (C.T.)
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, Herestraat 49 box 802, 3000 Leuven, Belgium; (S.J.P.c.P.); (T.V.)
| | - Katrien De Clercq
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000 Leuven, Belgium; (E.P.); (K.D.C.); (C.V.d.E.); (K.L.); (R.V.B.); (C.T.)
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, Herestraat 49 box 802, 3000 Leuven, Belgium; (S.J.P.c.P.); (T.V.)
| | - Charlotte Van den Eynde
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000 Leuven, Belgium; (E.P.); (K.D.C.); (C.V.d.E.); (K.L.); (R.V.B.); (C.T.)
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, Herestraat 49 box 802, 3000 Leuven, Belgium; (S.J.P.c.P.); (T.V.)
| | - Sílvia João Poseiro coutinho Pinto
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, Herestraat 49 box 802, 3000 Leuven, Belgium; (S.J.P.c.P.); (T.V.)
| | - Katrien Luyten
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000 Leuven, Belgium; (E.P.); (K.D.C.); (C.V.d.E.); (K.L.); (R.V.B.); (C.T.)
| | - Rita Van Bree
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000 Leuven, Belgium; (E.P.); (K.D.C.); (C.V.d.E.); (K.L.); (R.V.B.); (C.T.)
| | - Carla Tomassetti
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000 Leuven, Belgium; (E.P.); (K.D.C.); (C.V.d.E.); (K.L.); (R.V.B.); (C.T.)
- Leuven University Fertility Center, University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Thomas Voets
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, Herestraat 49 box 802, 3000 Leuven, Belgium; (S.J.P.c.P.); (T.V.)
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000 Leuven, Belgium; (E.P.); (K.D.C.); (C.V.d.E.); (K.L.); (R.V.B.); (C.T.)
- Correspondence: ; Tel.: +32-16-32-72-79
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28
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Paricio-Montesinos R, Schwaller F, Udhayachandran A, Rau F, Walcher J, Evangelista R, Vriens J, Voets T, Poulet JFA, Lewin GR. The Sensory Coding of Warm Perception. Neuron 2020; 106:830-841.e3. [PMID: 32208171 PMCID: PMC7272120 DOI: 10.1016/j.neuron.2020.02.035] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 02/24/2020] [Accepted: 02/28/2020] [Indexed: 12/26/2022]
Abstract
Humans detect skin temperature changes that are perceived as warm or cool. Like humans, mice report forepaw skin warming with perceptual thresholds of less than 1°C and do not confuse warm with cool. We identify two populations of polymodal C-fibers that signal warm. Warm excites one population, whereas it suppresses the ongoing cool-driven firing of the other. In the absence of the thermosensitive TRPM2 or TRPV1 ion channels, warm perception was blunted, but not abolished. In addition, trpv1:trpa1:trpm3−/− triple-mutant mice that cannot sense noxious heat detected skin warming, albeit with reduced sensitivity. In contrast, loss or local pharmacological silencing of the cool-driven TRPM8 channel abolished the ability to detect warm. Our data are not reconcilable with a labeled line model for warm perception, with receptors firing only in response to warm stimuli, but instead support a conserved dual sensory model to unambiguously detect skin warming in vertebrates. Mice, like humans, perceive forepaw warming (≥1°C) and discriminate warm from cool Warm-activated and warm-silenced polymodal C-fibers both signal forepaw warming Mice lacking the cool-sensitive ion channel TRPM8 are unable to perceive warm The inability to perceive warm is associated with loss of warm-silenced C-fibers
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Affiliation(s)
- Ricardo Paricio-Montesinos
- Department of Neuroscience, Max Delbrück Center for Molecular Medicine, Robert-Rössle Straße 10, 13092 Berlin, Germany; Neuroscience Research Center and Cluster of Excellence NeuroCure, Charité-Universitätsmedizin, Charitéplatz 1, 10117 Berlin, Germany
| | - Frederick Schwaller
- Department of Neuroscience, Max Delbrück Center for Molecular Medicine, Robert-Rössle Straße 10, 13092 Berlin, Germany
| | - Annapoorani Udhayachandran
- Department of Neuroscience, Max Delbrück Center for Molecular Medicine, Robert-Rössle Straße 10, 13092 Berlin, Germany; Neuroscience Research Center and Cluster of Excellence NeuroCure, Charité-Universitätsmedizin, Charitéplatz 1, 10117 Berlin, Germany
| | - Florian Rau
- Department of Neuroscience, Max Delbrück Center for Molecular Medicine, Robert-Rössle Straße 10, 13092 Berlin, Germany; Neuroscience Research Center and Cluster of Excellence NeuroCure, Charité-Universitätsmedizin, Charitéplatz 1, 10117 Berlin, Germany
| | - Jan Walcher
- Department of Neuroscience, Max Delbrück Center for Molecular Medicine, Robert-Rössle Straße 10, 13092 Berlin, Germany
| | - Roberta Evangelista
- Department of Neuroscience, Max Delbrück Center for Molecular Medicine, Robert-Rössle Straße 10, 13092 Berlin, Germany
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, KU Leuven Department of Development and Regeneration, G-PURE, Leuven, Belgium
| | - Thomas Voets
- Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain and Disease Research, KU Leuven Department of Cellular and Molecular Medicine, Leuven, Belgium
| | - James F A Poulet
- Department of Neuroscience, Max Delbrück Center for Molecular Medicine, Robert-Rössle Straße 10, 13092 Berlin, Germany; Neuroscience Research Center and Cluster of Excellence NeuroCure, Charité-Universitätsmedizin, Charitéplatz 1, 10117 Berlin, Germany.
| | - Gary R Lewin
- Department of Neuroscience, Max Delbrück Center for Molecular Medicine, Robert-Rössle Straße 10, 13092 Berlin, Germany.
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Vangeel L, Benoit M, Miron Y, Miller PE, De Clercq K, Chaltin P, Verfaillie C, Vriens J, Voets T. Functional expression and pharmacological modulation of TRPM3 in human sensory neurons. Br J Pharmacol 2020; 177:2683-2695. [PMID: 31985045 DOI: 10.1111/bph.14994] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 12/09/2019] [Accepted: 01/12/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND AND PURPOSE The transient receptor potential (TRP) ion channel TRPM3 functions as a noxious heat sensor, plays a key role in acute pain sensation and inflammatory hyperalgesia in rodents. Despite its potential as a novel analgesic drug target, little is known about the expression, function and modulation in the humans. EXPERIMENTAL APPROACH We studied TRPM3 in freshly isolated human dorsal root ganglion (hDRG) neurons and human stem cell-derived sensory (hSCDS) neurons. Expression was analysed at the mRNA level using RT-qPCR. Channel function was assessed using Fura-2-based calcium imaging and whole-cell patch-clamp recordings. KEY RESULTS TRPM3 was detected at the mRNA level in both hDRG and hSCDS neurons. The TRPM3 agonists pregnenolone sulphate (PS) and CIM0216 evoked robust intracellular Ca2+ responses in 52% of hDRG and 58% of hSCDS neurons. Whole-cell patch-clamp recordings in hSCDS neurons revealed pregnenolone sulphate (PS)- and CIM0216-evoked currents exhibiting the characteristic current-voltage relation of TRPM3. PS-induced calcium responses in hSCDS neurons were reversed in a dose-dependent manner by the flavonoid isosakuranetin and by antiseizure drug primidone. Finally, the μ-opioid receptor agonist DAMGO and the GABAB receptor agonist baclofen inhibited PS-evoked TRPM3 responses in a subset of hSCDS neurons. CONCLUSION AND IMPLICATIONS These results provide the first direct evidence of functional expression of the pain receptor TRPM3 in human sensory neurons, largely mirroring the channel's properties observed in mouse sensory neurons. hSCDS neurons represent a valuable and readily accessible in vitro model to study TRPM3 regulation and pharmacology in a relevant human cellular context.
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Affiliation(s)
- Laura Vangeel
- Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain & Disease Research, Leuven, Belgium.,Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Melissa Benoit
- Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain & Disease Research, Leuven, Belgium.,Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | | | | | - Katrien De Clercq
- Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain & Disease Research, Leuven, Belgium.,Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium.,Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, G-PURE, KU Leuven, Leuven, Belgium
| | - Patrick Chaltin
- Center for Drug Design and Discovery, Bio-Incubator 2, Heverlee, Belgium
| | - Catherine Verfaillie
- Department of Development and Regeneration, Stem Cell Institute, KU Leuven, Leuven, Belgium
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, G-PURE, KU Leuven, Leuven, Belgium
| | - Thomas Voets
- Laboratory of Ion Channel Research, VIB-KU Leuven Center for Brain & Disease Research, Leuven, Belgium.,Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
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Held K, Mulier M, Van Ranst N, Ge Y, Voets T, Tian Wang Y, Vriens J. TRPM3 Inhibits Synaptic Transmission and Plasticity in the Hippocampus. Biophys J 2020. [DOI: 10.1016/j.bpj.2019.11.297] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Blair NT, Carvacho I, Chaudhuri D, Clapham DE, DeCaen P, Delling M, Doerner JF, Fan L, Ha K, Jordt SE, Julius D, Kahle KT, Liu B, McKemy D, Nilius B, Oancea E, Owsianik G, Riccio A, Sah R, Stotz SC, Tian J, Tong D, Van den Eynde C, Vriens J, Wu LJ, Xu H, Yue L, Zhang X, Zhu MX. Transient Receptor Potential channels (version 2019.4) in the IUPHAR/BPS Guide to Pharmacology Database. ACTA ACUST UNITED AC 2019. [DOI: 10.2218/gtopdb/f78/2019.4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The TRP superfamily of channels (nomenclature as agreed by NC-IUPHAR [145, 915]), whose founder member is the Drosophila Trp channel, exists in mammals as six families; TRPC, TRPM, TRPV, TRPA, TRPP and TRPML based on amino acid homologies. TRP subunits contain six putative transmembrane domains and assemble as homo- or hetero-tetramers to form cation selective channels with diverse modes of activation and varied permeation properties (reviewed by [630]). Established, or potential, physiological functions of the individual members of the TRP families are discussed in detail in the recommended reviews and in a number of books [344, 589, 979, 216]. The established, or potential, involvement of TRP channels in disease is reviewed in [384, 588] and [591], together with a special edition of Biochemica et Biophysica Acta on the subject [588]. Additional disease related reviews, for pain [542], stroke [967], sensation and inflammation [843], itch [109], and airway disease [261, 896], are available. The pharmacology of most TRP channels has been advanced in recent years. Broad spectrum agents are listed in the tables along with more selective, or recently recognised, ligands that are flagged by the inclusion of a primary reference. See Rubaiy (2019) for a review of pharmacological tools for TRPC1/C4/C5 channels [692]. Most TRP channels are regulated by phosphoinostides such as PtIns(4,5)P2 although the effects reported are often complex, occasionally contradictory, and likely to be dependent upon experimental conditions, such as intracellular ATP levels (reviewed by [862, 592, 689]). Such regulation is generally not included in the tables.When thermosensitivity is mentioned, it refers specifically to a high Q10 of gating, often in the range of 10-30, but does not necessarily imply that the channel's function is to act as a 'hot' or 'cold' sensor. In general, the search for TRP activators has led to many claims for temperature sensing, mechanosensation, and lipid sensing. All proteins are of course sensitive to energies of binding, mechanical force, and temperature, but the issue is whether the proposed input is within a physiologically relevant range resulting in a response. TRPA (ankyrin) familyTRPA1 is the sole mammalian member of this group (reviewed by [246]). TRPA1 activation of sensory neurons contribute to nociception [356, 763, 516]. Pungent chemicals such as mustard oil (AITC), allicin, and cinnamaldehyde activate TRPA1 by modification of free thiol groups of cysteine side chains, especially those located in its amino terminus [491, 47, 311, 493]. Alkenals with α, β-unsaturated bonds, such as propenal (acrolein), butenal (crotylaldehyde), and 2-pentenal can react with free thiols via Michael addition and can activate TRPA1. However, potency appears to weaken as carbon chain length increases [21, 47]. Covalent modification leads to sustained activation of TRPA1. Chemicals including carvacrol, menthol, and local anesthetics reversibly activate TRPA1 by non-covalent binding [364, 438, 923, 922]. TRPA1 is not mechanosensitive under physiological conditions, but can be activated by cold temperatures [365, 175]. The electron cryo-EM structure of TRPA1 [639] indicates that it is a 6-TM homotetramer. Each subunit of the channel contains two short ‘pore helices’ pointing into the ion selectivity filter, which is big enough to allow permeation of partially hydrated Ca2+ ions. TRPC (canonical) familyMembers of the TRPC subfamily (reviewed by [239, 673, 14, 4, 79, 382, 638, 55]) fall into the subgroups outlined below. TRPC2 is a pseudogene in humans. It is generally accepted that all TRPC channels are activated downstream of Gq/11-coupled receptors, or receptor tyrosine kinases (reviewed by [661, 814, 915]). A comprehensive listing of G-protein coupled receptors that activate TRPC channels is given in [4]. Hetero-oligomeric complexes of TRPC channels and their association with proteins to form signalling complexes are detailed in [14] and [383]. TRPC channels have frequently been proposed to act as store-operated channels (SOCs) (or compenents of mulimeric complexes that form SOCs), activated by depletion of intracellular calcium stores (reviewed by [640, 14, 665, 703, 954, 132, 626, 51, 133]). However, the weight of the evidence is that they are not directly gated by conventional store-operated mechanisms, as established for Stim-gated Orai channels. TRPC channels are not mechanically gated in physiologically relevant ranges of force. All members of the TRPC family are blocked by 2-APB and SKF96365 [295, 294]. Activation of TRPC channels by lipids is discussed by [55]. Important progress has been recently made in TRPC pharmacology [692, 529, 372, 87]. TRPC channels regulate a variety of physiological functions and are implicated in many human diseases [248, 56, 759, 879]. TRPC1/C4/C5 subgroup TRPC1 alone may not form a functional ion channel [191]. TRPC4/C5 may be distinguished from other TRP channels by their potentiation by micromolar concentrations of La3+. TRPC2 is a pseudogene in humans, but in other mammals appears to be an ion channel localized to microvilli of the vomeronasal organ. It is required for normal sexual behavior in response to pheromones in mice. It may also function in the main olfactory epithelia in mice [951, 625, 624, 952, 462, 988, 947].TRPC3/C6/C7 subgroup All members are activated by diacylglycerol independent of protein kinase C stimulation [295].TRPM (melastatin) familyMembers of the TRPM subfamily (reviewed by [230, 294, 640, 978]) fall into the five subgroups outlined below. TRPM1/M3 subgroupIn darkness, glutamate released by the photoreceptors and ON-bipolar cells binds to the metabotropic glutamate receptor 6 , leading to activation of Go . This results in the closure of TRPM1. When the photoreceptors are stimulated by light, glutamate release is reduced, and TRPM1 channels are more active, resulting in cell membrane depolarization. Human TRPM1 mutations are associated with congenital stationary night blindness (CSNB), whose patients lack rod function. TRPM1 is also found melanocytes. Isoforms of TRPM1 may present in melanocytes, melanoma, brain, and retina. In melanoma cells, TRPM1 is prevalent in highly dynamic intracellular vesicular structures [341, 609]. TRPM3 (reviewed by [615]) exists as multiple splice variants which differ significantly in their biophysical properties. TRPM3 is expressed in somatosensory neurons and may be important in development of heat hyperalgesia during inflammation (see review [803]). TRPM3 is frequently coexpressed with TRPA1 and TRPV1 in these neurons. TRPM3 is expressed in pancreatic beta cells as well as brain, pituitary gland, eye, kidney, and adipose tissue [614, 802]. TRPM3 may contribute to the detection of noxious heat [870].TRPM2TRPM2 is activated under conditions of oxidative stress (respiratory burst of phagocytic cells) and ischemic conditions. However, the direct activators are ADPR(P) and calcium. As for many ion channels, PIP2 must also be present (reviewed by [935]). Numerous splice variants of TRPM2 exist which differ in their activation mechanisms [200]. The C-terminal domain contains a TRP motif, a coiled-coil region, and an enzymatic NUDT9 homologous domain. TRPM2 appears not to be activated by NAD, NAAD, or NAADP, but is directly activated by ADPRP (adenosine-5'-O-disphosphoribose phosphate) [827]. TRPM2 is involved in warmth sensation [724], and contributes to neurological diseases [61]. Recent study shows that 2'-deoxy-ADPR is an endogenous TRPM2 superagonist [231]. TRPM4/5 subgroupTRPM4 and TRPM5 have the distinction within all TRP channels of being impermeable to Ca2+ [915]. A splice variant of TRPM4 (i.e.TRPM4b) and TRPM5 are molecular candidates for endogenous calcium-activated cation (CAN) channels [278]. TRPM4 is active in the late phase of repolarization of the cardiac ventricular action potential. TRPM4 deletion or knockout enhances beta adrenergic-mediated inotropy [507]. Mutations are associated with conduction defects [347, 507, 753]. TRPM4 has been shown to be an important regulator of Ca2+ entry in to mast cells [847] and dendritic cell migration [39]. TRPM5 in taste receptor cells of the tongue appears essential for the transduction of sweet, amino acid and bitter stimuli [460] TRPM5 contributes to the slow afterdepolarization of layer 5 neurons in mouse prefrontal cortex [439]. Both TRPM4 and TRPM5 are required transduction of taste stimuli [206].TRPM6/7 subgroupTRPM6 and 7 combine channel and enzymatic activities (‘chanzymes’). These channels have the unusual property of permeation by divalent (Ca2+, Mg2+, Zn2+) and monovalent cations, high single channel conductances, but overall extremely small inward conductance when expressed to the plasma membrane. They are inhibited by internal Mg2+ at ~0.6 mM, around the free level of Mg2+ in cells. Whether they contribute to Mg2+ homeostasis is a contentious issue. When either gene is deleted in mice, the result is embryonic lethality. The C-terminal kinase region is cleaved under unknown stimuli, and the kinase phosphorylates nuclear histones. TRPM7 is responsible for oxidant- induced Zn2+ release from intracellular vesicles [3] and contributes to intestinal mineral absorption essential for postnatal survival [532]. TRPM8Is a channel activated by cooling and pharmacological agents evoking a ‘cool’ sensation and participates in the thermosensation of cold temperatures [50, 147, 186] reviewed by [864, 481, 391, 556]. TRPML (mucolipin) familyThe TRPML family [676, 964, 670, 926, 156] consists of three mammalian members (TRPML1-3). TRPML channels are probably restricted to intracellular vesicles and mutations in the gene (MCOLN1) encoding TRPML1 (mucolipin-1) cause the neurodegenerative disorder mucolipidosis type IV (MLIV) in man. TRPML1 is a cation selective ion channel that is important for sorting/transport of endosomes in the late endocytotic pathway and specifically, fission from late endosome-lysosome hybrid vesicles and lysosomal exocytosis [704]. TRPML2 and TRPML3 show increased channel activity in low extracellular sodium and are activated by similar small molecules [270]. A naturally occurring gain of function mutation in TRPML3 (i.e. A419P) results in the varitint waddler (Va) mouse phenotype (reviewed by [676, 593]). TRPP (polycystin) familyThe TRPP family (reviewed by [179, 177, 252, 905, 320]) or PKD2 family is comprised of PKD2 (PC2), PKD2L1 (PC2L1), PKD2L2 (PC2L2), which have been renamed TRPP1, TRPP2 and TRPP3, respectively [915]. It should also be noted that the nomenclature of PC2 was TRPP2 in old literature. However, PC2 has been uniformed to be called TRPP2 [293]. PKD2 family channels are clearly distinct from the PKD1 family, whose function is unknown. PKD1 and PKD2 form a hetero-oligomeric complex with a 1:3 ratio. [775]. Although still being sorted out, TRPP family members appear to be 6TM spanning nonselective cation channels. TRPV (vanilloid) familyMembers of the TRPV family (reviewed by [849]) can broadly be divided into the non-selective cation channels, TRPV1-4 and the more calcium selective channels TRPV5 and TRPV6.TRPV1-V4 subfamilyTRPV1 is involved in the development of thermal hyperalgesia following inflammation and may contribute to the detection of noxius heat (reviewed by [660, 756, 786]). Numerous splice variants of TRPV1 have been described, some of which modulate the activity of TRPV1, or act in a dominant negative manner when co-expressed with TRPV1 [722]. The pharmacology of TRPV1 channels is discussed in detail in [280] and [868]. TRPV2 is probably not a thermosensor in man [635], but has recently been implicated in innate immunity [469]. TRPV3 and TRPV4 are both thermosensitive. There are claims that TRPV4 is also mechanosensitive, but this has not been established to be within a physiological range in a native environment [106, 454].TRPV5/V6 subfamily TRPV5 and TRPV6 are highly expressed in placenta, bone, and kidney. Under physiological conditions, TRPV5 and TRPV6 are calcium selective channels involved in the absorption and reabsorption of calcium across intestinal and kidney tubule epithelia (reviewed by [901, 168, 558, 227]).
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Vriens J, Voets T. Heat sensing involves a TRiPlet of ion channels. Br J Pharmacol 2019; 176:3893-3898. [PMID: 31372975 DOI: 10.1111/bph.14812] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/24/2019] [Accepted: 06/05/2019] [Indexed: 12/30/2022] Open
Abstract
Detecting and avoiding noxious heat is crucial to prevent burn injury. While the nociceptor neurons involved in conveying heat-induced pain were identified more than a century ago, the molecular sensors responsible for detecting noxious heat had remained elusive. In a recent study, important progress was made in our understanding of the molecular basis of acute noxious heat sensing, with the identification of a set of three transient receptor potential (TRP) ion channels, TRPV1, TRPA1, and TRPM3, which have crucial but largely redundant roles in acute heat sensing. Most strikingly, combined elimination of all three TRP channels causes a complete loss of the acute avoidance reaction to noxious heat, without affecting pain responses to painful mechanical or cold stimuli. Here, we provide a brief account of the current model of acute, noxious heat sensing and discuss possible implications for analgesic drug development.
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Affiliation(s)
- Joris Vriens
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, G-PURE, KU Leuven, Leuven, Belgium
| | - Thomas Voets
- Laboratory of Ion Channel Research, VIB-KU Leuven Centre for Brain and Disease Research, and Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
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Voets T, Vriens J, Vennekens R. Targeting TRP Channels - Valuable Alternatives to Combat Pain, Lower Urinary Tract Disorders, and Type 2 Diabetes? Trends Pharmacol Sci 2019; 40:669-683. [PMID: 31395287 DOI: 10.1016/j.tips.2019.07.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/12/2019] [Accepted: 07/10/2019] [Indexed: 12/18/2022]
Abstract
Transient receptor potential (TRP) channels are a family of functionally diverse and widely expressed cation channels involved in a variety of cell signaling and sensory pathways. Research in the last two decades has not only shed light on the physiological roles of the 28 mammalian TRP channels, but also revealed the involvement of specific TRP channels in a plethora of inherited and acquired human diseases. Considering the historical successes of other types of ion channels as therapeutic drug targets, small molecules that target specific TRP channels hold promise as treatments for a variety of human conditions. In recent research, important new findings have highlighted the central role of TRP channels in chronic pain, lower urinary tract disorders, and type 2 diabetes, conditions with an unmet medical need. Here, we discuss how these advances support the development of TRP-channel-based pharmacotherapies as valuable alternatives to the current mainstays of treatment.
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Affiliation(s)
- Thomas Voets
- Laboratory of Ion Channel Research, VIB Center for Brain and Disease Research, Leuven, Belgium; Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium.
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Rudi Vennekens
- Laboratory of Ion Channel Research, VIB Center for Brain and Disease Research, Leuven, Belgium; Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
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De Clercq K, Pinto S, Van Den Broek E, Voets T, Vriens J. Placental TRPV2 expression is indispensable for normal fetal growth. Placenta 2019. [DOI: 10.1016/j.placenta.2019.06.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Boretto M, Maenhoudt N, Luo X, Hennes A, Boeckx B, Bui B, Heremans R, Perneel L, Kobayashi H, Van Zundert I, Brems H, Cox B, Ferrante M, Uji-I H, Koh KP, D'Hooghe T, Vanhie A, Vergote I, Meuleman C, Tomassetti C, Lambrechts D, Vriens J, Timmerman D, Vankelecom H. Patient-derived organoids from endometrial disease capture clinical heterogeneity and are amenable to drug screening. Nat Cell Biol 2019; 21:1041-1051. [PMID: 31371824 DOI: 10.1038/s41556-019-0360-z] [Citation(s) in RCA: 242] [Impact Index Per Article: 48.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 06/12/2019] [Indexed: 12/15/2022]
Abstract
Endometrial disorders represent a major gynaecological burden. Current research models fail to recapitulate the nature and heterogeneity of these diseases, thereby hampering scientific and clinical progress. Here we developed long-term expandable organoids from a broad spectrum of endometrial pathologies. Organoids from endometriosis show disease-associated traits and cancer-linked mutations. Endometrial cancer-derived organoids accurately capture cancer subtypes, replicate the mutational landscape of the tumours and display patient-specific drug responses. Organoids were also established from precancerous pathologies encompassing endometrial hyperplasia and Lynch syndrome, and inherited gene mutations were maintained. Endometrial disease organoids reproduced the original lesion when transplanted in vivo. In summary, we developed multiple organoid models that capture endometrial disease diversity and will provide powerful research models and drug screening and discovery tools.
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Affiliation(s)
- Matteo Boretto
- Laboratory of Tissue Plasticity in Health and Disease, Stem Cell and Developmental Biology Cluster, Department of Development and Regeneration, KU Leuven, Leuven, Belgium.
| | - Nina Maenhoudt
- Laboratory of Tissue Plasticity in Health and Disease, Stem Cell and Developmental Biology Cluster, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Xinlong Luo
- Stem Cell Institute Leuven, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Aurélie Hennes
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Bram Boeckx
- Center for Cancer Biology, VIB, Leuven, Belgium.,Laboratory for Translational Genetics, Department of Human Genetics, KU Leuven, Leuven, Belgium
| | - Bich Bui
- Laboratory of Tissue Plasticity in Health and Disease, Stem Cell and Developmental Biology Cluster, Department of Development and Regeneration, KU Leuven, Leuven, Belgium.,Woman and Baby Division, Reproductive Medicine, University Medical Centre Utrecht (UMCU), Utrecht, The Netherlands
| | - Ruben Heremans
- Laboratory of Tissue Plasticity in Health and Disease, Stem Cell and Developmental Biology Cluster, Department of Development and Regeneration, KU Leuven, Leuven, Belgium.,Woman and Child Cluster, Department of Development and Regeneration, KU Leuven, Leuven, Belgium.,Gynecology and Obstetrics, University Hospitals Leuven (UZ Leuven), Leuven, Belgium
| | - Lisa Perneel
- Laboratory of Tissue Plasticity in Health and Disease, Stem Cell and Developmental Biology Cluster, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Hiroto Kobayashi
- Laboratory of Tissue Plasticity in Health and Disease, Stem Cell and Developmental Biology Cluster, Department of Development and Regeneration, KU Leuven, Leuven, Belgium.,Department of Anatomy and Structural Science, Faculty of Medicine, Yamagata University, Yamagata, Japan
| | - Indra Van Zundert
- Laboratory of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Leuven, Belgium
| | - Hilde Brems
- Laboratory for Neurofibromatosis Research, Department of Human Genetics, KU Leuven, Leuven, Belgium
| | - Benoit Cox
- Laboratory of Tissue Plasticity in Health and Disease, Stem Cell and Developmental Biology Cluster, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Marc Ferrante
- Unit of Translational Research in Gastrointestinal Disorders, Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, Leuven, Belgium
| | - Hiroshi Uji-I
- Laboratory of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Leuven, Belgium
| | - Kian Peng Koh
- Stem Cell Institute Leuven, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Thomas D'Hooghe
- Woman and Child Cluster, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Arne Vanhie
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Leuven, Belgium.,Leuven University Fertility Center (LUFC), UZ Leuven, Leuven, Belgium
| | - Ignace Vergote
- Woman and Child Cluster, Department of Development and Regeneration, KU Leuven, Leuven, Belgium.,Gynecology and Obstetrics, University Hospitals Leuven (UZ Leuven), Leuven, Belgium
| | - Christel Meuleman
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Leuven, Belgium.,Leuven University Fertility Center (LUFC), UZ Leuven, Leuven, Belgium
| | - Carla Tomassetti
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Leuven, Belgium.,Leuven University Fertility Center (LUFC), UZ Leuven, Leuven, Belgium
| | - Diether Lambrechts
- Center for Cancer Biology, VIB, Leuven, Belgium.,Laboratory for Translational Genetics, Department of Human Genetics, KU Leuven, Leuven, Belgium
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis and Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Dirk Timmerman
- Woman and Child Cluster, Department of Development and Regeneration, KU Leuven, Leuven, Belgium.,Gynecology and Obstetrics, University Hospitals Leuven (UZ Leuven), Leuven, Belgium
| | - Hugo Vankelecom
- Laboratory of Tissue Plasticity in Health and Disease, Stem Cell and Developmental Biology Cluster, Department of Development and Regeneration, KU Leuven, Leuven, Belgium.
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De Clercq K, Persoons E, Napso T, Luyten C, Parac-Vogt TN, Sferruzzi-Perri AN, Kerckhofs G, Vriens J. High-resolution contrast-enhanced microCT reveals the true three-dimensional morphology of the murine placenta. Proc Natl Acad Sci U S A 2019; 116:13927-13936. [PMID: 31249139 PMCID: PMC6683600 DOI: 10.1073/pnas.1902688116] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Genetic engineering of the mouse genome identified many genes that are essential for embryogenesis. Remarkably, the prevalence of concomitant placental defects in embryonic lethal mutants is highly underestimated and indicates the importance of detailed placental analysis when phenotyping new individual gene knockouts. Here we introduce high-resolution contrast-enhanced microfocus computed tomography (CE-CT) as a nondestructive, high-throughput technique to evaluate the 3D placental morphology. Using a contrast agent, zirconium-substituted Keggin polyoxometalate (Zr-POM), the soft tissue of the placenta (i.e., different layers and cell types and its vasculature) was imaged with a resolution of 3.5 µm voxel size. This approach allowed us to visualize and study early and late stages of placental development. Moreover, CE-CT provides a method to precisely quantify placental parameters (i.e., volumes, volume fraction, ratio of different placental layers, and volumes of specific cell populations) that are crucial for statistical comparison studies. The CE-CT assessment of the 3D morphology of the placentas was validated (i) by comparison with standard histological studies; (ii) by evaluating placentas from 2 different mouse strains, 129S6 and C57BL/6J mice; and (iii) by confirming the placental phenotype of mice lacking phosphoinositol 3-kinase (PI3K)-p110α. Finally, the Zr-POM-based CE-CT allowed for inspection of the vasculature structure in the entire placenta, as well as detecting placental defects in pathologies characterized by embryonic resorption and placental fusion. Taken together, Zr-POM-based CE-CT offers a quantitative 3D methodology to investigate placental development or pathologies.
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Affiliation(s)
- Katrien De Clercq
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, Gynecology-Pediatrics and Urology Research Group (G-PURE), Katholieke Universiteit (KU) Leuven, 3000 Leuven, Belgium
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, 3000 Leuven, Belgium
- Vlaams Instituut voor Biotechnologie (VIB) Centre for Brain & Disease Research, 3000 Leuven, Belgium
| | - Eleonora Persoons
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, Gynecology-Pediatrics and Urology Research Group (G-PURE), Katholieke Universiteit (KU) Leuven, 3000 Leuven, Belgium
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, 3000 Leuven, Belgium
- Vlaams Instituut voor Biotechnologie (VIB) Centre for Brain & Disease Research, 3000 Leuven, Belgium
| | - Tina Napso
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, United Kingdom
| | - Catherine Luyten
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, Gynecology-Pediatrics and Urology Research Group (G-PURE), Katholieke Universiteit (KU) Leuven, 3000 Leuven, Belgium
| | - Tatjana N Parac-Vogt
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, 3000 Leuven, Belgium
| | - Amanda N Sferruzzi-Perri
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, United Kingdom
| | - Greet Kerckhofs
- Biomechanics Laboratory, Institute of Mechanics, Materials, and Civil Engineering, Université Catholique de Louvain, 1348 Louvain-la-Neuve, Belgium
- Department of Materials Science and Engineering, KU Leuven, 3000 Leuven, Belgium
- Prometheus, Division of Skeletal Tissue Engineering, KU Leuven, 3000 Leuven, Belgium
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, Gynecology-Pediatrics and Urology Research Group (G-PURE), Katholieke Universiteit (KU) Leuven, 3000 Leuven, Belgium;
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Hennes A, Held K, Boretto M, De Clercq K, Van den Eynde C, Vanhie A, Van Ranst N, Benoit M, Luyten C, Peeraer K, Tomassetti C, Meuleman C, Voets T, Vankelecom H, Vriens J. Functional expression of the mechanosensitive PIEZO1 channel in primary endometrial epithelial cells and endometrial organoids. Sci Rep 2019; 9:1779. [PMID: 30741991 PMCID: PMC6370865 DOI: 10.1038/s41598-018-38376-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 12/20/2018] [Indexed: 12/27/2022] Open
Abstract
Successful pregnancy requires the establishment of a complex dialogue between the implanting embryo and the endometrium. Knowledge regarding molecular candidates involved in this early communication process is inadequate due to limited access to primary human endometrial epithelial cells (EEC). Since pseudo-pregnancy in rodents can be induced by mechanical scratching of an appropriately primed uterus, this study aimed to investigate the expression of mechanosensitive ion channels in EEC. Poking of EEC provoked a robust calcium influx and induced an increase in current densities, which could be blocked by an inhibitor of mechanosensitive ion channels. Interestingly, RNA expression studies showed high expression of PIEZO1 in EEC of mouse and human. Additional analysis provided further evidence for the functional expression of PIEZO1 since stimulation with Yoda1, a chemical agonist of PIEZO1, induced increases in intracellular calcium concentrations and current densities in EEC. Moreover, the ion channel profile of human endometrial organoids (EMO) was validated as a representative model for endometrial epithelial cells. Mechanical and chemical stimulation of EMO induced strong calcium responses supporting the hypothesis of mechanosensitive ion channel expression in endometrial epithelial cells. In conclusion, EEC and EMO functionally express the mechanosensitive PIEZO1 channel that could act as a potential target for the development of novel treatments to further improve successful implantation processes.
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Affiliation(s)
- Aurélie Hennes
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000, Leuven, Belgium
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, Herestraat 49 box 802, 3000, Leuven, Belgium
| | - Katharina Held
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000, Leuven, Belgium
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, Herestraat 49 box 802, 3000, Leuven, Belgium
| | - Matteo Boretto
- Laboratory of Tissue Plasticity in Health and Disease, Cluster of Stem Cell and Developmental Biology, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 804, 3000, Leuven, Belgium
| | - Katrien De Clercq
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000, Leuven, Belgium
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, Herestraat 49 box 802, 3000, Leuven, Belgium
| | - Charlotte Van den Eynde
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000, Leuven, Belgium
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, Herestraat 49 box 802, 3000, Leuven, Belgium
| | - Arne Vanhie
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000, Leuven, Belgium
- Leuven University Fertility Centre, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Nele Van Ranst
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, Herestraat 49 box 802, 3000, Leuven, Belgium
| | - Melissa Benoit
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, Herestraat 49 box 802, 3000, Leuven, Belgium
| | - Catherine Luyten
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000, Leuven, Belgium
| | - Karen Peeraer
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000, Leuven, Belgium
- Leuven University Fertility Centre, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Carla Tomassetti
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000, Leuven, Belgium
- Leuven University Fertility Centre, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Christel Meuleman
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000, Leuven, Belgium
- Leuven University Fertility Centre, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Thomas Voets
- Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Center for Brain & Disease Research, Herestraat 49 box 802, 3000, Leuven, Belgium
| | - Hugo Vankelecom
- Laboratory of Tissue Plasticity in Health and Disease, Cluster of Stem Cell and Developmental Biology, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 804, 3000, Leuven, Belgium
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department of Development and Regeneration, KU Leuven, Herestraat 49 box 611, 3000, Leuven, Belgium.
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De Clercq K, Vriens J. Establishing life is a calcium-dependent TRiP: Transient receptor potential channels in reproduction. Biochim Biophys Acta Mol Cell Res 2018; 1865:1815-1829. [PMID: 30798946 DOI: 10.1016/j.bbamcr.2018.08.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 08/03/2018] [Accepted: 08/04/2018] [Indexed: 12/21/2022]
Abstract
Calcium plays a key role in many different steps of the reproduction process, from germ cell maturation to placental development. However, the exact function and regulation of calcium throughout subsequent reproductive events remains rather enigmatic. Successful pregnancy requires the establishment of a complex dialogue between the implanting embryo and the endometrium. On the one hand, endometrial cell will undergo massive changes to support an implanting embryo, including stromal cell decidualization. On the other hand, trophoblast cells from the trophectoderm surrounding the inner cell mass will differentiate and acquire new functions such as hormone secretion, invasion and migration. The need for calcium in the different gestational processes implicates the presence of specialized ion channels to regulate calcium homeostasis. The superfamily of transient receptor potential (TRP) channels is a class of calcium permeable ion channels that is involved in the transformation of extracellular stimuli into the influx of calcium, inducing and coordinating underlying signaling pathways. Although the necessity of calcium throughout reproduction cannot be negated, the expression and functionality of TRP channels throughout gestation remains elusive. This review provides an overview of the current evidence regarding the expression and function of TRP channels in reproduction.
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Affiliation(s)
- Katrien De Clercq
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department Development & Regeneration, KU Leuven, G-PURE, Leuven, Belgium; Laboratory of Ion Channel Research, Department of Cellular and Molecular Medicine, KU Leuven, VIB Centre for Brain & Disease Research, Leuven, Belgium
| | - Joris Vriens
- Laboratory of Endometrium, Endometriosis & Reproductive Medicine, Department Development & Regeneration, KU Leuven, G-PURE, Leuven, Belgium.
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Peterse D, Binda MM, O DF, Vanhie A, Fassbender A, Vriens J, D'Hooghe TM. Of Mice and Women: A Laparoscopic Mouse Model for Endometriosis. J Minim Invasive Gynecol 2018; 25:578-579. [DOI: 10.1016/j.jmig.2017.10.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 09/18/2017] [Accepted: 10/06/2017] [Indexed: 10/18/2022]
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Held K, Gruss F, Aloi VD, Janssens A, Ulens C, Voets T, Vriens J. Mutations in the voltage-sensing domain affect the alternative ion permeation pathway in the TRPM3 channel. J Physiol 2018; 596:2413-2432. [PMID: 29604058 PMCID: PMC6002228 DOI: 10.1113/jp274124] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 03/19/2018] [Indexed: 01/23/2023] Open
Abstract
Key points Mutagenesis at positively charged amino acids (arginines and lysines) (R1–R4) in the voltage‐sensor domain (transmembrane segment (S) 4) of voltage‐gated Na+, K+ and Ca2+ channels can lead to an alternative ion permeation pathway distinct from the central pore. Recently, a non‐canonical ion permeation pathway was described in TRPM3, a member of the transient receptor potential (TRP) superfamily. The non‐canonical pore exists in the native TRPM3 channel and can be activated by co‐stimulation of the endogenous agonist pregnenolone sulphate and the antifungal drug clotrimazole or by stimulation of the synthetic agonist CIM0216. Alignment of the voltage sensor of Shaker K+ channels with the entire TRPM3 sequence revealed the highest degree of similarity in the putative S4 region of TRPM3, and suggested that only one single gating charge arginine (R2) in the putative S4 region is conserved. Mutagenesis studies in the voltage‐sensing domain of TRPM3 revealed several residues in the voltage sensor (S4) as well as in S1 and S3 that are crucial for the occurrence of the non‐canonical inward currents. In conclusion, this study provides evidence for the involvement of the voltage‐sensing domain of TRPM3 in the formation of an alternative ion permeation pathway.
Abstract Transient receptor potential (TRP) channels are cationic channels involved in a broad array of functions, including homeostasis, motility and sensory functions. TRP channel subunits consist of six transmembrane segments (S1–S6), and form tetrameric channels with a central pore formed by the region encompassing S5 and S6. Recently, evidence was provided for the existence of an alternative ion permeation pathway in TRPM3, which allows large inward currents upon hyperpolarization independently of the central pore. However, very little knowledge is available concerning the localization of this alternative pathway in the native TRPM3 channel protein. Guided by sequence homology with Shaker K+ channels, in which mutations in S4 can create an analogous ‘omega’ pore, we performed site‐directed mutagenesis studies and patch clamp experiments to identify amino acid residues involved in the formation of the non‐canonical pore in TRPM3. Based on our results, we pinpoint four residues in S4 (W982, R985, D988 and G991) as crucial determinants of the properties of the alternative ion permeation pathway. Mutagenesis at positively charged amino acids (arginines and lysines) (R1–R4) in the voltage‐sensor domain (transmembrane segment (S) 4) of voltage‐gated Na+, K+ and Ca2+ channels can lead to an alternative ion permeation pathway distinct from the central pore. Recently, a non‐canonical ion permeation pathway was described in TRPM3, a member of the transient receptor potential (TRP) superfamily. The non‐canonical pore exists in the native TRPM3 channel and can be activated by co‐stimulation of the endogenous agonist pregnenolone sulphate and the antifungal drug clotrimazole or by stimulation of the synthetic agonist CIM0216. Alignment of the voltage sensor of Shaker K+ channels with the entire TRPM3 sequence revealed the highest degree of similarity in the putative S4 region of TRPM3, and suggested that only one single gating charge arginine (R2) in the putative S4 region is conserved. Mutagenesis studies in the voltage‐sensing domain of TRPM3 revealed several residues in the voltage sensor (S4) as well as in S1 and S3 that are crucial for the occurrence of the non‐canonical inward currents. In conclusion, this study provides evidence for the involvement of the voltage‐sensing domain of TRPM3 in the formation of an alternative ion permeation pathway.
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Affiliation(s)
- Katharina Held
- Laboratory of Experimental Gynecology and G-PURE, KU Leuven, Department of Development and Regeneration, Herestraat 49 box 611, B-3000, Leuven, Belgium.,Laboratory of Ion Channel Research and TRP Research Platform Leuven (TRPLe), KU Leuven, Department of Cellular and Molecular Medicine, Herestraat 49 box 802, B-3000, Leuven, Belgium.,VIB Center for Brain & Disease Research, B-3000, Leuven, Belgium
| | - Fabian Gruss
- Laboratory of Structural Neurobiology and TRP Research Platform Leuven (TRPLe), KU Leuven, Department of Cellular and Molecular Medicine, Herestraat 49 box 601, B-3000, Leuven, Belgium
| | - Vincenzo Davide Aloi
- Laboratory of Experimental Gynecology and G-PURE, KU Leuven, Department of Development and Regeneration, Herestraat 49 box 611, B-3000, Leuven, Belgium.,Laboratory of Ion Channel Research and TRP Research Platform Leuven (TRPLe), KU Leuven, Department of Cellular and Molecular Medicine, Herestraat 49 box 802, B-3000, Leuven, Belgium.,VIB Center for Brain & Disease Research, B-3000, Leuven, Belgium
| | - Annelies Janssens
- Laboratory of Ion Channel Research and TRP Research Platform Leuven (TRPLe), KU Leuven, Department of Cellular and Molecular Medicine, Herestraat 49 box 802, B-3000, Leuven, Belgium.,VIB Center for Brain & Disease Research, B-3000, Leuven, Belgium
| | - Chris Ulens
- Laboratory of Structural Neurobiology and TRP Research Platform Leuven (TRPLe), KU Leuven, Department of Cellular and Molecular Medicine, Herestraat 49 box 601, B-3000, Leuven, Belgium
| | - Thomas Voets
- Laboratory of Ion Channel Research and TRP Research Platform Leuven (TRPLe), KU Leuven, Department of Cellular and Molecular Medicine, Herestraat 49 box 802, B-3000, Leuven, Belgium.,VIB Center for Brain & Disease Research, B-3000, Leuven, Belgium
| | - Joris Vriens
- Laboratory of Experimental Gynecology and G-PURE, KU Leuven, Department of Development and Regeneration, Herestraat 49 box 611, B-3000, Leuven, Belgium
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De Clercq K, Van den Eynde C, Hennes A, Van Bree R, Voets T, Vriens J. The functional expression of transient receptor potential channels in the mouse endometrium. Hum Reprod 2018; 32:615-630. [PMID: 28077439 DOI: 10.1093/humrep/dew344] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 12/15/2016] [Indexed: 11/14/2022] Open
Abstract
STUDY QUESTION Does mouse endometrial epithelial cells and stromal cells have a similar transient receptor potential (TRP)-channel expression profile and to that found in the human endometrium? SUMMARY ANSWER Mouse endometrial epithelial and stromal cells have a distinct TRP channel expression profile analogous to what has been found in human endometrium, and hence suggests the mouse a good model to investigate the role of TRP channels in reproduction. WHAT IS KNOWN ALREADY An optimal intercellular communication between epithelial and stromal endometrial cells is crucial for successful reproduction. Members of the TRP family were recently described in the human endometrial stroma; however their functional expression in murine endometrium remains unspecified. Furthermore, epithelial and stromal cells have distinct functions in the reproductive process, implying the possibility for a different expression profile. However, knowledge about the functional expression pattern of TRP channels in either epithelial or stromal cells is not available. STUDY DESIGN, SIZE, DURATION In this study, the expression pattern of TRP channels in the murine (C57BL/6 J strain) endometrium was investigated and compared to the human expression pattern. Therefore, expression was examined in uterine tissue isolated during the natural estrous cycle (n = 16) or during an induced menstrual cycle using the menstruating mouse model (n = 28). Next, the functional expression of TRP channels was assessed separately in endometrial epithelial and stromal cell populations. PARTICIPANTS/MATERIALS, SETTING, METHODS Quantitative RT-PCR was used to evaluate the relative mRNA expression of TRP channels in murine uterine tissue and cells. To further assess the functional expression in epithelial or stromal cells, primary endometrial cell cultures and Fura2-based calcium-microfluorimetry experiments were performed. MAIN RESULTS AND THE ROLE OF CHANCE The expression pattern of TRP channels during the natural estrous cycle or the induced menstrual cycle is analog to what has been shown in human samples. Furthermore, a very distinct expression pattern was observed in epithelial cells compared to stromal cells. Expression of TRPV4, TRPV6 and TRPM6 was significantly higher in epithelial cells whereas TRPV2, TRPC1/4 and TRPC6 were almost exclusively expressed in stromal cells. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION Although relevant mRNA levels are detected for TRPV6 and TRPM6, and TRPM4, lack of selective, available pharmacology restricted functional analysis of these ion channels. WIDER IMPLICATIONS OF THE FINDINGS Successful reproduction, and more specifically embryo implantation, is a dynamic developmental process that integrates many signaling molecules into a precisely orchestrated program. Here, we describe the expression pattern of TRP channels in mouse endometrium that is similar to human tissue and their restricted functionality in either stromal cells or epithelial cells, suggesting a role in the epithelial-stromal crosstalk. These results will be very helpful to identify key players involved in the signaling cascades required for successful embryo implantation. In addition, these results illustrate that mouse endometrium is a valid representative for human endometrium to investigate TRP channels in the field of reproduction. STUDY FUNDING/COMPETING INTEREST(S) The Research Foundation-Flanders (G.0856.13 N to J.V.); the Research Council of the Katholieke Universiteit Leuven (OT/13/113 to J.V. and PF-TRPLe to T.V.); the Planckaert-De Waele fund (to J.V.); Fonds Wetenschappelijk Onderzoek Belgium (to K.D.C. and A.H.). None of the authors have a conflict of interest.
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Affiliation(s)
- Katrien De Clercq
- Laboratory of Obstetrics and Experimental Gynaecology, KU Leuven, Herestraat 49 box 611, B-3000 Leuven, Belgium
| | - Charlotte Van den Eynde
- Laboratory of Obstetrics and Experimental Gynaecology, KU Leuven, Herestraat 49 box 611, B-3000 Leuven, Belgium
| | - Aurélie Hennes
- Laboratory of Obstetrics and Experimental Gynaecology, KU Leuven, Herestraat 49 box 611, B-3000 Leuven, Belgium
| | - Rieta Van Bree
- Laboratory of Obstetrics and Experimental Gynaecology, KU Leuven, Herestraat 49 box 611, B-3000 Leuven, Belgium
| | - Thomas Voets
- Laboratory of Ion Channel Research and TRP Research Platform Leuven (TRPLe), KU Leuven, Herestraat 49 box 802, B-3000 Leuven, Belgium
| | - Joris Vriens
- Laboratory of Obstetrics and Experimental Gynaecology, KU Leuven, Herestraat 49 box 611, B-3000 Leuven, Belgium
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Peterse D, Clercq KD, Goossens C, Binda MM, F. O. D, Saunders P, Vriens J, Fassbender A, D’Hooghe TM. Optimization of Endometrial Decidualization in the Menstruating Mouse Model for Preclinical Endometriosis Research. Reprod Sci 2018; 25:1577-1588. [DOI: 10.1177/1933719118756744] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Daniëlle Peterse
- Department of Obstetrics and Gynaecology, Leuven University Fertility Center, University Hospital Leuven, Leuven, Belgium
- Department of Development and Regeneration, Laboratory of Endometrium, Endometriosis & Reproductive Medicine, KU Leuven, Leuven, Belgium
| | - Katrien De Clercq
- Department of Development and Regeneration, Laboratory of Endometrium, Endometriosis & Reproductive Medicine, KU Leuven, Leuven, Belgium
| | - Chloë Goossens
- Department of Development and Regeneration, Laboratory of Endometrium, Endometriosis & Reproductive Medicine, KU Leuven, Leuven, Belgium
| | - M. Mercedes Binda
- Department of Development and Regeneration, Laboratory of Endometrium, Endometriosis & Reproductive Medicine, KU Leuven, Leuven, Belgium
| | - Dorien F. O.
- Department of Obstetrics and Gynaecology, Leuven University Fertility Center, University Hospital Leuven, Leuven, Belgium
- Department of Development and Regeneration, Laboratory of Endometrium, Endometriosis & Reproductive Medicine, KU Leuven, Leuven, Belgium
| | - Philippa Saunders
- MRC Centre for Inflammation Research, The University of Edinburgh, Edinburgh, United Kingdom
| | - Joris Vriens
- Department of Development and Regeneration, Laboratory of Endometrium, Endometriosis & Reproductive Medicine, KU Leuven, Leuven, Belgium
| | - Amelie Fassbender
- Department of Obstetrics and Gynaecology, Leuven University Fertility Center, University Hospital Leuven, Leuven, Belgium
- Department of Development and Regeneration, Laboratory of Endometrium, Endometriosis & Reproductive Medicine, KU Leuven, Leuven, Belgium
| | - Thomas M. D’Hooghe
- Department of Development and Regeneration, Laboratory of Endometrium, Endometriosis & Reproductive Medicine, KU Leuven, Leuven, Belgium
- Global Medical Affairs Fertility, Research and Development, Merck, Darmstadt, Germany
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Abstract
Decidualization is a progesterone-dependent differentiation process of endometrial stromal cells and is a prerequisite for successful embryo implantation. Although many efforts have been made to reveal the underlying mechanisms of decidualization, the exact signaling between the epithelial cells that are in contact with the embryo and the underlying stromal cells remains poorly understood. Therefore, studying decidualization in a way that takes both the epithelial and stromal cells into account could improve our knowledge about the molecular details of decidualization. For this purpose, in vivo models of artificial decidualization are physiologically the most relevant; however, manipulation of intercellular communication is limited. Currently, in vitro cultures of endometrial stromal cells are being used to investigate the modulation of decidualization by several signaling molecules. Conventionally, human or mouse endometrial stromal cells are used. However, the availability of human samples is very often limited. Furthermore, the use of murine tissues is accompanied with variety in the method of culturing. This study presents a validated and standardized method to obtain pure Endometrial Epithelial Cell (EEC) and Stromal Cell (ESC) cultures using adult intact mice treated with estrogen for three consecutive days. The protocol is optimized to improve the yield, viability, and purity of the cells and was further extended in order to study decidualization in a coculture of EEC and ESC. This model may be suitable to exploit the importance of both cell types in decidualization and to evaluate the contribution of significant signaling molecules secreted by EEC or ESC during the intercellular communication.
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Affiliation(s)
- Katrien De Clercq
- Department of Development and Regeneration, Katholieke Universiteit Leuven (KU Leuven)
| | - Aurélie Hennes
- Department of Development and Regeneration, Katholieke Universiteit Leuven (KU Leuven)
| | - Joris Vriens
- Department of Development and Regeneration, Katholieke Universiteit Leuven (KU Leuven);
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Held K, Janssens A, Voets T, Vriens J. Localization of an Alternative Ion Permeation Pathway in TRPM3. Biophys J 2017. [DOI: 10.1016/j.bpj.2016.11.2499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Vriens J, Voets T. A cellular pathway controlling functional plasma membrane incorporation of the cold sensor TRPM8. Temperature (Austin) 2017; 3:521-523. [PMID: 28090554 PMCID: PMC5198801 DOI: 10.1080/23328940.2016.1200205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Joris Vriens
- Laboratory of Experimental Gynecology and Obstetrics, KU Leuven , Leuven, Belgium
| | - Thomas Voets
- Lab of ion channel Research (LICR), KU Leuven , Leuven, Belgium
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Cantelmo AR, Conradi LC, Brajic A, Goveia J, Kalucka J, Pircher A, Chaturvedi P, Hol J, Thienpont B, Teuwen LA, Schoors S, Boeckx B, Vriens J, Kuchnio A, Veys K, Cruys B, Finotto L, Treps L, Stav-Noraas TE, Bifari F, Stapor P, Decimo I, Kampen K, De Bock K, Haraldsen G, Schoonjans L, Rabelink T, Eelen G, Ghesquière B, Rehman J, Lambrechts D, Malik AB, Dewerchin M, Carmeliet P. Inhibition of the Glycolytic Activator PFKFB3 in Endothelium Induces Tumor Vessel Normalization, Impairs Metastasis, and Improves Chemotherapy. Cancer Cell 2016; 30:968-985. [PMID: 27866851 PMCID: PMC5675554 DOI: 10.1016/j.ccell.2016.10.006] [Citation(s) in RCA: 406] [Impact Index Per Article: 50.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Revised: 06/30/2016] [Accepted: 10/04/2016] [Indexed: 01/01/2023]
Abstract
Abnormal tumor vessels promote metastasis and impair chemotherapy. Hence, tumor vessel normalization (TVN) is emerging as an anti-cancer treatment. Here, we show that tumor endothelial cells (ECs) have a hyper-glycolytic metabolism, shunting intermediates to nucleotide synthesis. EC haplo-deficiency or blockade of the glycolytic activator PFKFB3 did not affect tumor growth, but reduced cancer cell invasion, intravasation, and metastasis by normalizing tumor vessels, which improved vessel maturation and perfusion. Mechanistically, PFKFB3 inhibition tightened the vascular barrier by reducing VE-cadherin endocytosis in ECs, and rendering pericytes more quiescent and adhesive (via upregulation of N-cadherin) through glycolysis reduction; it also lowered the expression of cancer cell adhesion molecules in ECs by decreasing NF-κB signaling. PFKFB3-blockade treatment also improved chemotherapy of primary and metastatic tumors.
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Affiliation(s)
- Anna Rita Cantelmo
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Lena-Christin Conradi
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Aleksandra Brajic
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Jermaine Goveia
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Joanna Kalucka
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Andreas Pircher
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Pallavi Chaturvedi
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Johanna Hol
- Department of Pathology, K.G. Jebsen Inflammation Research Center, Oslo University Hospital, University of Oslo, Oslo 0424, Norway
| | - Bernard Thienpont
- Laboratory for Translational Genetics, Vesalius Research Center, VIB, Leuven 3000, Belgium; Laboratory for Translational Genetics, Department of Oncology, KU Leuven, Leuven 3000, Belgium
| | - Laure-Anne Teuwen
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Sandra Schoors
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Bram Boeckx
- Laboratory for Translational Genetics, Vesalius Research Center, VIB, Leuven 3000, Belgium; Laboratory for Translational Genetics, Department of Oncology, KU Leuven, Leuven 3000, Belgium
| | - Joris Vriens
- Laboratory of Ion Channel Research and TRP Research Platform Leuven (TRPLe), KU Leuven, Leuven 3000, Belgium
| | - Anna Kuchnio
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Koen Veys
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Bert Cruys
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Lise Finotto
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Lucas Treps
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Tor Espen Stav-Noraas
- Department of Pathology, K.G. Jebsen Inflammation Research Center, Oslo University Hospital, University of Oslo, Oslo 0424, Norway
| | - Francesco Bifari
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Peter Stapor
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Ilaria Decimo
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Kim Kampen
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Katrien De Bock
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Guttorm Haraldsen
- Department of Pathology, K.G. Jebsen Inflammation Research Center, Oslo University Hospital, University of Oslo, Oslo 0424, Norway
| | - Luc Schoonjans
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Ton Rabelink
- Department of Nephrology, Einthoven Laboratory for Vascular Medicine, LUMC, Leiden University Medical Center, Leiden 2300 RC, the Netherlands
| | - Guy Eelen
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Bart Ghesquière
- Metabolomics Core Facility, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Metabolomics Core Facility, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Jalees Rehman
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, IL 60612, USA; Section of Cardiology, Department of Medicine, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Diether Lambrechts
- Laboratory for Translational Genetics, Vesalius Research Center, VIB, Leuven 3000, Belgium; Laboratory for Translational Genetics, Department of Oncology, KU Leuven, Leuven 3000, Belgium
| | - Asrar B Malik
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Mieke Dewerchin
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium
| | - Peter Carmeliet
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven 3000, Belgium; Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, Leuven 3000, Belgium.
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Buntinx L, Voets T, Morlion B, Vangeel L, Janssen M, Cornelissen E, Vriens J, de Hoon J, Levtchenko E. TRPV1 dysfunction in cystinosis patients harboring the homozygous 57 kb deletion. Sci Rep 2016; 6:35395. [PMID: 27734949 PMCID: PMC5062165 DOI: 10.1038/srep35395] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 09/27/2016] [Indexed: 11/12/2022] Open
Abstract
Cystinosis is a rare autosomal recessive disorder characterized by lysosomal cystine accumulation due to loss of function of the lysosomal cystine transporter (CTNS). The most common mutation in cystinosis patients of Northern Europe consists of a 57-kb deletion. This deletion not only inactivates the CTNS gene but also extends into the non-coding region upstream of the start codon of the TRPV1 gene, encoding the capsaicin- and heat-sensitive ion channel TRPV1. To evaluate the consequences of the 57-kb deletion on functional TRPV1 expression, we compared thermal, mechanical and chemical sensitivity of cystinosis patients with matched healthy controls. Whereas patients heterozygous for the 57-kb deletion showed normal sensory responses, homozygous subjects exhibited a 60% reduction in vasodilation and pain evoked by capsaicin, as well as an increase in heat detection threshold. Responses to cold, mechanical stimuli or cinnamaldehyde, an agonist of the related nociceptor channel TRPA1, were unaltered. We conclude that cystinosis patients homozygous for the 57-kb deletion exhibit a strong reduction of TRPV1 function, leading to sensory deficiencies akin to the phenotype of TRPV1-deficient mice. These deficits may account for the reported sensory alterations and thermoregulatory deficits in these patients, and provide a paradigm for life-long TRPV1 deficiency in humans.
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Affiliation(s)
- L Buntinx
- Center for Clinical Pharmacology, Department of Pharmaceutical and Pharmacological Sciences, KULeuven, Herestraat 49, 3000 Leuven, Belgium
| | - T Voets
- Department of Cellular and Molecular Medicine, KULeuven, Herestraat 49, 3000 Leuven, Belgium
| | - B Morlion
- Center for algology and pain management, Department of Cardiovascular Sciences, KULeuven, Weligerveld 1, 3212 Pellenberg, Belgium
| | - L Vangeel
- Department of Cellular and Molecular Medicine, KULeuven, Herestraat 49, 3000 Leuven, Belgium
| | - M Janssen
- Department of internal medicine, Radboud UMC Nijmegen, Geert Grooteplein-Zuid 22, 6525 GA Nijmegen, The Netherlands
| | - E Cornelissen
- Department of Pediatric Nephrology, Radboud UMC Nijmegen, Geert Grooteplein-Zuid 22, 6525 GA Nijmegen, The Netherlands
| | - J Vriens
- Department of Development and Regeneration, KULeuven, Herestraat 49, 3000 Leuven, Belgium
| | - J de Hoon
- Center for Clinical Pharmacology, Department of Pharmaceutical and Pharmacological Sciences, KULeuven, Herestraat 49, 3000 Leuven, Belgium
| | - E Levtchenko
- Department of Development and Regeneration, KULeuven, Herestraat 49, 3000 Leuven, Belgium
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Janssens A, Gees M, Toth BI, Ghosh D, Mulier M, Vennekens R, Vriens J, Talavera K, Voets T. Definition of two agonist types at the mammalian cold-activated channel TRPM8. eLife 2016; 5. [PMID: 27449282 PMCID: PMC4985286 DOI: 10.7554/elife.17240] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 07/22/2016] [Indexed: 11/13/2022] Open
Abstract
Various TRP channels act as polymodal sensors of thermal and chemical stimuli, but the mechanisms whereby chemical ligands impact on TRP channel gating are poorly understood. Here we show that AITC (allyl isothiocyanate; mustard oil) and menthol represent two distinct types of ligands at the mammalian cold sensor TRPM8. Kinetic analysis of channel gating revealed that AITC acts by destabilizing the closed channel, whereas menthol stabilizes the open channel, relative to the transition state. Based on these differences, we classify agonists as either type I (menthol-like) or type II (AITC-like), and provide a kinetic model that faithfully reproduces their differential effects. We further demonstrate that type I and type II agonists have a distinct impact on TRPM8 currents and TRPM8-mediated calcium signals in excitable cells. These findings provide a theoretical framework for understanding the differential actions of TRP channel ligands, with important ramifications for TRP channel structure-function analysis and pharmacology. DOI:http://dx.doi.org/10.7554/eLife.17240.001 Sensory neurons in our skin detect cues from the environment – such as temperature and touch – and pass the information onto other cells in the nervous system. A protein called TRPM8 in sensory neurons is responsible for our ability to detect cool temperatures. TRPM8 sits in the membrane that surrounds the cell and forms a channel that can allow sodium and calcium ions to enter the cell. Cold temperatures activate TRPM8, which opens the channel and triggers electrical activity in the sensory neurons. Chemicals that cause a cold sensation – such as menthol, the refreshing substance found in mint plants – can also open the TRPM8 channel. Janssens, Gees, Toth et al. investigated how menthol, and another natural compound called mustard oil, influence the opening of TRPM8. The experiments show that menthol and mustard oil both stimulate sensory neurons by opening the TRPM8 ion channel, but using different mechanisms. Mustard oil forces the channel to open faster than it normally would, whereas menthol prevents the channel from closing. Further experiments show that these mechanisms explain why some compounds stimulate sensory neurons more strongly than others. The findings of Janssens, Gees, Toth et al. will help to understand how chemicals act on this class of ion channels, and how this affects the roles of the ion channels in cells. Altering the activity of TRPM8 and related ion channels may help to reduce pain in humans so a future challenge is to use these new insights to develop drugs that target these channels more efficiently. DOI:http://dx.doi.org/10.7554/eLife.17240.002
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Affiliation(s)
- Annelies Janssens
- Laboratory of Ion Channel Research and TRP channel Research Platform Leuven, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Maarten Gees
- Laboratory of Ion Channel Research and TRP channel Research Platform Leuven, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Balazs Istvan Toth
- Laboratory of Ion Channel Research and TRP channel Research Platform Leuven, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Debapriya Ghosh
- Laboratory of Ion Channel Research and TRP channel Research Platform Leuven, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Marie Mulier
- Laboratory of Ion Channel Research and TRP channel Research Platform Leuven, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Rudi Vennekens
- Laboratory of Ion Channel Research and TRP channel Research Platform Leuven, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Joris Vriens
- Laboratory of Ion Channel Research and TRP channel Research Platform Leuven, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium.,Laboratory of Experimental Gynaecology, University of Leuven, Leuven, Belgium
| | - Karel Talavera
- Laboratory of Ion Channel Research and TRP channel Research Platform Leuven, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
| | - Thomas Voets
- Laboratory of Ion Channel Research and TRP channel Research Platform Leuven, Department of Cellular and Molecular Medicine, University of Leuven, Leuven, Belgium
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Tóth BI, Konrad M, Ghosh D, Mohr F, Halaszovich CR, Leitner MG, Vriens J, Oberwinkler J, Voets T. Regulation of the transient receptor potential channel TRPM3 by phosphoinositides. ACTA ACUST UNITED AC 2016; 146:51-63. [PMID: 26123194 PMCID: PMC4485019 DOI: 10.1085/jgp.201411339] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
TRPM3 is dynamically regulated by plasma membrane PI(4,5)P2 and related PIPs. The transient receptor potential (TRP) channel TRPM3 is a calcium-permeable cation channel activated by heat and by the neurosteroid pregnenolone sulfate (PregS). TRPM3 is highly expressed in sensory neurons, where it plays a key role in heat sensing and inflammatory hyperalgesia, and in pancreatic β cells, where its activation enhances glucose-induced insulin release. However, despite its functional importance, little is known about the cellular mechanisms that regulate TRPM3 activity. Here, we provide evidence for a dynamic regulation of TRPM3 by membrane phosphatidylinositol phosphates (PIPs). Phosphatidylinositol 4,5-bisphosphate (PI[4,5]P2) and ATP applied to the intracellular side of excised membrane patches promote recovery of TRPM3 from desensitization. The stimulatory effect of cytosolic ATP on TRPM3 reflects activation of phosphatidylinositol kinases (PI-Ks), leading to resynthesis of PIPs in the plasma membrane. Various PIPs directly enhance TRPM3 activity in cell-free inside-out patches, with a potency order PI(3,4,5)P3 > PI(3,5)P2 > PI(4,5)P2 ≈ PI(3,4)P2 >> PI(4)P. Conversely, TRPM3 activity is rapidly and reversibly inhibited by activation of phosphatases that remove the 5-phosphate from PIPs. Finally, we show that recombinant TRPM3, as well as the endogenous TRPM3 in insuloma cells, is rapidly and reversibly inhibited by activation of phospholipase C–coupled muscarinic acetylcholine receptors. Our results reveal basic cellular mechanisms whereby membrane receptors can regulate TRPM3 activity.
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Affiliation(s)
- Balázs I Tóth
- Laboratory of Ion Channel Research and TRP Research Platform Leuven (TRPLe) and Laboratory of Obstetrics and Experimental Gynaecology, KU Leuven, 3000 Leuven, Belgium
| | - Maik Konrad
- Institut für Physiologie und Pathophysiologie, Philipps-Universität Marburg, 35037 Marburg, Germany
| | - Debapriya Ghosh
- Laboratory of Ion Channel Research and TRP Research Platform Leuven (TRPLe) and Laboratory of Obstetrics and Experimental Gynaecology, KU Leuven, 3000 Leuven, Belgium
| | - Florian Mohr
- Institut für Physiologie und Pathophysiologie, Philipps-Universität Marburg, 35037 Marburg, Germany
| | - Christian R Halaszovich
- Institut für Physiologie und Pathophysiologie, Philipps-Universität Marburg, 35037 Marburg, Germany
| | - Michael G Leitner
- Institut für Physiologie und Pathophysiologie, Philipps-Universität Marburg, 35037 Marburg, Germany
| | - Joris Vriens
- Laboratory of Ion Channel Research and TRP Research Platform Leuven (TRPLe) and Laboratory of Obstetrics and Experimental Gynaecology, KU Leuven, 3000 Leuven, Belgium Laboratory of Ion Channel Research and TRP Research Platform Leuven (TRPLe) and Laboratory of Obstetrics and Experimental Gynaecology, KU Leuven, 3000 Leuven, Belgium
| | - Johannes Oberwinkler
- Institut für Physiologie und Pathophysiologie, Philipps-Universität Marburg, 35037 Marburg, Germany
| | - Thomas Voets
- Laboratory of Ion Channel Research and TRP Research Platform Leuven (TRPLe) and Laboratory of Obstetrics and Experimental Gynaecology, KU Leuven, 3000 Leuven, Belgium
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Affiliation(s)
- Daniëlle P. Peterse
- Department of Obstetrics and Gynaecology, Leuven University Fertility Centre, University Hospital Leuven, Leuven, Belgium
- Department of Development and Regeneration, Laboratory of Experimental Gynaecology, KU Leuven, Leuven, Belgium
| | - Amelie Fassbender
- Department of Obstetrics and Gynaecology, Leuven University Fertility Centre, University Hospital Leuven, Leuven, Belgium
- Department of Development and Regeneration, Laboratory of Experimental Gynaecology, KU Leuven, Leuven, Belgium
| | - Dorien F. O
- Department of Obstetrics and Gynaecology, Leuven University Fertility Centre, University Hospital Leuven, Leuven, Belgium
- Department of Development and Regeneration, Laboratory of Experimental Gynaecology, KU Leuven, Leuven, Belgium
| | - Arne Vanhie
- Department of Development and Regeneration, Laboratory of Experimental Gynaecology, KU Leuven, Leuven, Belgium
| | - Philippa Saunders
- MRC Centre for Inflammation Research, The University of Edinburgh, Edinburgh, Scotland, United Kingdom
| | - Joris Vriens
- Department of Development and Regeneration, Laboratory of Experimental Gynaecology, KU Leuven, Leuven, Belgium
| | - M. Mercedes Binda
- Department of Development and Regeneration, Laboratory of Experimental Gynaecology, KU Leuven, Leuven, Belgium
- *These authors contributed equally to the article
| | - Thomas M. D’Hooghe
- Department of Development and Regeneration, Laboratory of Experimental Gynaecology, KU Leuven, Leuven, Belgium
- Division of Reproductive Biology, Institute of Primate Research, Nairobi, Kenya
- *These authors contributed equally to the article
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