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  1. Article ; Online: Neurodevelopmental disorders caused by variants in TRPM3.

    Roelens, Robbe / Peigneur, Ana Nogueira Freitas / Voets, Thomas / Vriens, Joris

    Biochimica et biophysica acta. Molecular cell research

    2024  Volume 1871, Issue 5, Page(s) 119709

    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 ... ...

    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.
    Language English
    Publishing date 2024-03-23
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 60-7
    ISSN 1879-2596 ; 1879-260X ; 1872-8006 ; 1879-2642 ; 1879-2618 ; 1879-2650 ; 0006-3002 ; 0005-2728 ; 0005-2736 ; 0304-4165 ; 0167-4838 ; 1388-1981 ; 0167-4889 ; 0167-4781 ; 0304-419X ; 1570-9639 ; 0925-4439 ; 1874-9399
    ISSN (online) 1879-2596 ; 1879-260X ; 1872-8006 ; 1879-2642 ; 1879-2618 ; 1879-2650
    ISSN 0006-3002 ; 0005-2728 ; 0005-2736 ; 0304-4165 ; 0167-4838 ; 1388-1981 ; 0167-4889 ; 0167-4781 ; 0304-419X ; 1570-9639 ; 0925-4439 ; 1874-9399
    DOI 10.1016/j.bbamcr.2024.119709
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Heat sensing involves a TRiPlet of ion channels.

    Vriens, Joris / Voets, Thomas

    British journal of pharmacology

    2019  Volume 176, Issue 20, Page(s) 3893–3898

    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 ...

    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.
    MeSH term(s) Analgesics/pharmacology ; Animals ; Hot Temperature ; Humans ; Models, Molecular ; Transient Receptor Potential Channels/antagonists & inhibitors ; Transient Receptor Potential Channels/metabolism
    Chemical Substances Analgesics ; Transient Receptor Potential Channels
    Language English
    Publishing date 2019-09-11
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 80081-8
    ISSN 1476-5381 ; 0007-1188
    ISSN (online) 1476-5381
    ISSN 0007-1188
    DOI 10.1111/bph.14812
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Reply to: Heat detection by the TRPM2 ion channel.

    Mulier, Marie / Vandewauw, Ine / Vriens, Joris / Voets, Thomas

    Nature

    2020  Volume 584, Issue 7820, Page(s) E13–E15

    MeSH term(s) Adenosine Diphosphate Ribose ; Hot Temperature ; TRPM Cation Channels
    Chemical Substances TRPM Cation Channels ; Adenosine Diphosphate Ribose (20762-30-5)
    Language English
    Publishing date 2020-08-12
    Publishing country England
    Document type Letter ; Research Support, Non-U.S. Gov't ; Comment
    ZDB-ID 120714-3
    ISSN 1476-4687 ; 0028-0836
    ISSN (online) 1476-4687
    ISSN 0028-0836
    DOI 10.1038/s41586-020-2511-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Transient receptor potential channel regulation by growth factors.

    Van den Eynde, Charlotte / Vriens, Joris / De Clercq, Katrien

    Biochimica et biophysica acta. Molecular cell research

    2021  Volume 1868, Issue 4, Page(s) 118950

    Abstract: ... Calcium ( ... ...

    Abstract Calcium (Ca
    MeSH term(s) Animals ; Calcium Signaling ; Cell Membrane/metabolism ; Gene Expression Regulation ; Homeostasis ; Humans ; Intercellular Signaling Peptides and Proteins/metabolism ; Transient Receptor Potential Channels/metabolism
    Chemical Substances Intercellular Signaling Peptides and Proteins ; Transient Receptor Potential Channels
    Language English
    Publishing date 2021-01-07
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 60-7
    ISSN 1879-2596 ; 1879-260X ; 1872-8006 ; 1879-2642 ; 1879-2618 ; 1879-2650 ; 0006-3002 ; 0005-2728 ; 0005-2736 ; 0304-4165 ; 0167-4838 ; 1388-1981 ; 0167-4889 ; 0167-4781 ; 0304-419X ; 1570-9639 ; 0925-4439 ; 1874-9399
    ISSN (online) 1879-2596 ; 1879-260X ; 1872-8006 ; 1879-2642 ; 1879-2618 ; 1879-2650
    ISSN 0006-3002 ; 0005-2728 ; 0005-2736 ; 0304-4165 ; 0167-4838 ; 1388-1981 ; 0167-4889 ; 0167-4781 ; 0304-419X ; 1570-9639 ; 0925-4439 ; 1874-9399
    DOI 10.1016/j.bbamcr.2021.118950
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Clotrimazole-Based Modulators of the TRPM3 Ion Channel Reveal Narrow Structure-Activity Relationship.

    Kahler, Jan Pascal / Aloi, Vincenzo Davide / Miedes Aliaga, Julia / Kerselaers, Sara / Voets, Thomas / Vriens, Joris / Verhelst, Steven H L / Barniol-Xicota, Marta

    ACS chemical biology

    2023  Volume 18, Issue 3, Page(s) 456–464

    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 ... ...

    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 Ca
    MeSH term(s) Humans ; Clotrimazole/pharmacology ; TRPM Cation Channels/metabolism ; Pain ; Structure-Activity Relationship
    Chemical Substances Clotrimazole (G07GZ97H65) ; TRPM Cation Channels ; TRPM3 protein, human
    Language English
    Publishing date 2023-02-10
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1554-8937
    ISSN (online) 1554-8937
    DOI 10.1021/acschembio.2c00672
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Sensing the heat with TRPM3.

    Vriens, Joris / Voets, Thomas

    Pflugers Archiv : European journal of physiology

    2018  Volume 470, Issue 5, Page(s) 799–807

    Abstract: Heat sensation, the ability to detect warm and noxious temperatures, is an ancient and indispensable sensory process. Noxious temperatures can have detrimental effects on the physiology and integrity of cells, and therefore, the detection of ... ...

    Abstract Heat sensation, the ability to detect warm and noxious temperatures, is an ancient and indispensable sensory process. Noxious temperatures can have detrimental effects on the physiology and integrity of cells, and therefore, the detection of environmental hot temperatures is absolutely crucial for survival. Temperature-sensitive ion channels, which conduct ions in a highly temperature-dependent manner, have been put forward as molecular thermometers expressed at the endings of sensory neurons. In particular, several temperature-sensitive members of the transient receptor potential (TRP) superfamily of ion channels have been identified, and a multitude of in vivo studies have shown that the capsaicin-sensitive TRPV1 channel plays a key role as a noxious heat sensor. However, Trpv1-deficient mice display a residual heat sensitivity suggesting the existence of additional heat sensor(s). In this chapter, we provide evidence for the role of the non-selective calcium-permeable TRPM3 ion channel as an additional heat sensor that acts independently of TRPV1, and give an update of the modulation of this channel by various molecular mechanisms. Finally, we compare antagonists of TRPM3 to specific blockers of TRPV1 as potential analgesic drugs to treat pathological pain.
    MeSH term(s) Animals ; Hot Temperature ; Humans ; Nociception ; Sensory Receptor Cells/metabolism ; Sensory Receptor Cells/physiology ; TRPM Cation Channels/chemistry ; TRPM Cation Channels/metabolism ; Thermosensing
    Chemical Substances TRPM Cation Channels
    Language English
    Publishing date 2018-01-05
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 6380-0
    ISSN 1432-2013 ; 0031-6768
    ISSN (online) 1432-2013
    ISSN 0031-6768
    DOI 10.1007/s00424-017-2100-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Establishing life is a calcium-dependent TRiP: Transient receptor potential channels in reproduction.

    De Clercq, Katrien / Vriens, Joris

    Biochimica et biophysica acta. Molecular cell research

    2018  Volume 1865, Issue 11 Pt B, Page(s) 1815–1829

    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. ... ...

    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.
    MeSH term(s) Animals ; Calcium/metabolism ; Calcium Signaling ; Disease Susceptibility ; Endometrium/metabolism ; Female ; Fertility/genetics ; Gene Expression Regulation ; Humans ; Placenta/metabolism ; Pregnancy ; Reproduction ; Transient Receptor Potential Channels/genetics ; Transient Receptor Potential Channels/metabolism ; Ubiquitin-Protein Ligases/genetics ; Ubiquitin-Protein Ligases/metabolism
    Chemical Substances Transient Receptor Potential Channels ; TRAIP protein, human (EC 2.3.2.27) ; Ubiquitin-Protein Ligases (EC 2.3.2.27) ; Calcium (SY7Q814VUP)
    Language English
    Publishing date 2018-08-09
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 60-7
    ISSN 1879-2596 ; 1879-260X ; 1872-8006 ; 1879-2642 ; 1879-2618 ; 1879-2650 ; 0006-3002 ; 0005-2728 ; 0005-2736 ; 0304-4165 ; 0167-4838 ; 1388-1981 ; 0167-4889 ; 0167-4781 ; 0304-419X ; 1570-9639 ; 0925-4439 ; 1874-9399
    ISSN (online) 1879-2596 ; 1879-260X ; 1872-8006 ; 1879-2642 ; 1879-2618 ; 1879-2650
    ISSN 0006-3002 ; 0005-2728 ; 0005-2736 ; 0304-4165 ; 0167-4838 ; 1388-1981 ; 0167-4889 ; 0167-4781 ; 0304-419X ; 1570-9639 ; 0925-4439 ; 1874-9399
    DOI 10.1016/j.bbamcr.2018.08.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Transient Receptor Potential Channels in the Epithelial-to-Mesenchymal Transition.

    Van den Eynde, Charlotte / De Clercq, Katrien / Vriens, Joris

    International journal of molecular sciences

    2021  Volume 22, Issue 15

    Abstract: The epithelial-to-mesenchymal transition (EMT) is a strictly regulated process that is indispensable for normal development, but it can result in fibrosis and cancer progression. It encompasses a complete alteration of the cellular transcriptomic profile, ...

    Abstract The epithelial-to-mesenchymal transition (EMT) is a strictly regulated process that is indispensable for normal development, but it can result in fibrosis and cancer progression. It encompasses a complete alteration of the cellular transcriptomic profile, promoting the expression of genes involved in cellular migration, invasion and proliferation. Extracellular signaling factors driving the EMT process require secondary messengers to convey their effects to their targets. Due to its remarkable properties, calcium represents an ideal candidate to translate molecular messages from receptor to effector. Therefore, calcium-permeable ion channels that facilitate the influx of extracellular calcium into the cytosol can exert major influences on cellular phenotype. Transient receptor potential (TRP) channels represent a superfamily of non-selective cation channels that decode physical and chemical stimuli into cellular behavior. Their role as cellular sensors renders them interesting proteins to study in the context of phenotypic transitions, such as EMT. In this review, we elaborate on the current knowledge regarding TRP channel expression and activity in cellular phenotype and EMT.
    MeSH term(s) Animals ; Epithelial-Mesenchymal Transition ; Humans ; Neoplasms/metabolism ; Neoplasms/pathology ; Signal Transduction ; Transient Receptor Potential Channels/classification ; Transient Receptor Potential Channels/genetics ; Transient Receptor Potential Channels/metabolism
    Chemical Substances Transient Receptor Potential Channels
    Language English
    Publishing date 2021-07-30
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms22158188
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  9. Article ; Online: Partial Agonistic Actions of Sex Hormone Steroids on TRPM3 Function.

    Persoons, Eleonora / Kerselaers, Sara / Voets, Thomas / Vriens, Joris / Held, Katharina

    International journal of molecular sciences

    2021  Volume 22, Issue 24

    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 ... ...

    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.
    MeSH term(s) Binding Sites ; Calcium/metabolism ; Dehydroepiandrosterone Sulfate/chemistry ; Dehydroepiandrosterone Sulfate/pharmacology ; Estradiol/chemistry ; Estradiol/pharmacology ; HEK293 Cells ; Humans ; Molecular Structure ; Mutation ; Progesterone/chemistry ; Progesterone/pharmacology ; Structure-Activity Relationship ; TRPM Cation Channels/agonists ; TRPM Cation Channels/chemistry ; TRPM Cation Channels/genetics ; TRPM Cation Channels/metabolism ; Temperature ; Testosterone/chemistry ; Testosterone/pharmacology ; Up-Regulation
    Chemical Substances TRPM Cation Channels ; TRPM3 protein, human ; Testosterone (3XMK78S47O) ; Progesterone (4G7DS2Q64Y) ; Estradiol (4TI98Z838E) ; Dehydroepiandrosterone Sulfate (57B09Q7FJR) ; Calcium (SY7Q814VUP)
    Language English
    Publishing date 2021-12-20
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms222413652
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Primidone improves symptoms in TRPM3-linked developmental and epileptic encephalopathy with spike-and-wave activation in sleep.

    Becker, Lena-Luise / Horn, Denise / Boschann, Felix / Van Hoeymissen, Evelien / Voets, Thomas / Vriens, Joris / Prager, Christine / Kaindl, Angela M

    Epilepsia

    2023  Volume 64, Issue 5, Page(s) e61–e68

    Abstract: Developmental and epileptic encephalopathy 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 ... ...

    Abstract Developmental and epileptic encephalopathy 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 pharmacoresistant DEE-SWAS and developmental delay/regression and different heterozygous de novo missense variants in the TRPM3 gene (NM_001366145.2; c.3397 T > 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 effect. Based on this finding, 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 the future in individuals with a TRPM3-linked DEE-SWAS.
    MeSH term(s) Humans ; Female ; Primidone/administration & dosage ; Epilepsy/drug therapy ; Retrospective Studies ; HEK293 Cells ; Electroencephalography ; Anticonvulsants/administration & dosage ; Male ; Child, Preschool ; Child
    Chemical Substances Primidone (13AFD7670Q) ; TRPM3 protein, human ; Anticonvulsants
    Language English
    Publishing date 2023-03-28
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 216382-2
    ISSN 1528-1167 ; 0013-9580
    ISSN (online) 1528-1167
    ISSN 0013-9580
    DOI 10.1111/epi.17586
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