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Rodan AR. Circadian Rhythm Regulation by Pacemaker Neuron Chloride Oscillation in Flies. Physiology (Bethesda) 2024; 39:0. [PMID: 38411570 DOI: 10.1152/physiol.00006.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/14/2024] [Accepted: 02/15/2024] [Indexed: 02/28/2024] Open
Abstract
Circadian rhythms in physiology and behavior sync organisms to external environmental cycles. Here, circadian oscillation in intracellular chloride in central pacemaker neurons of the fly, Drosophila melanogaster, is reviewed. Intracellular chloride links SLC12 cation-coupled chloride transporter function with kinase signaling and the regulation of inwardly rectifying potassium channels.
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Affiliation(s)
- Aylin R Rodan
- Molecular Medicine Program, University of Utah, Salt Lake City, Utah, United States
- Department of Internal Medicine, Division of Nephrology and Hypertension, University of Utah, Salt Lake City, Utah, United States
- Department of Human Genetics, University of Utah, Salt Lake City, Utah, United States
- Medical Service, Veterans Affairs Salt Lake City Health Care System, Salt Lake City, Utah, United States
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Panagopoulos I, Andersen K, Stavseth V, Torkildsen S, Heim S, Tandsæther MR. Germline MYOF1::WNK4 and VPS25::MYOF1 Chimeras Generated by the Constitutional Translocation t(17;19)(q21;p13) in Two Siblings With Myelodysplastic Syndrome. Cancer Genomics Proteomics 2024; 21:272-284. [PMID: 38670586 PMCID: PMC11059592 DOI: 10.21873/cgp.20446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 03/17/2024] [Accepted: 03/20/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND/AIM Constitutional chromosomal aberrations are rare in hematologic malignancies and their pathogenetic role is mostly poorly understood. We present a comprehensive molecular characterization of a novel constitutional chromosomal translocation found in two siblings - sisters - diagnosed with myelodysplastic syndrome (MDS). MATERIALS AND METHODS Bone marrow and blood cells from the two patients were examined using G-banding, RNA sequencing, PCR, and Sanger sequencing. RESULTS We identified a balanced t(17;19)(q21;p13) translocation in both siblings' bone marrow, blood cells, and phytohemagglutinin-stimulated lymphocytes. The translocation generated a MYO1F::WNK4 chimera on the der(19)t(17;19), encoding a chimeric serine/threonine kinase, and a VPS25::MYO1F on the der(17), potentially resulting in an aberrant VPS25 protein. CONCLUSION The t(17;19)(q21;p13) translocation found in the two sisters probably predisposed them to myelodysplasia. How the MYO1F::WNK4 and/or VPS25::MYO1F chimeras, perhaps especially MYO1F::WNK4 that encodes a chimeric serine/threonine kinase, played a role in MDS pathogenesis, remains incompletely understood.
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Affiliation(s)
- Ioannis Panagopoulos
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway;
| | - Kristin Andersen
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Vidar Stavseth
- Department of Haematology, Levanger Hospital, Levanger, Norway
| | - Synne Torkildsen
- Department of Haematology, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Sverre Heim
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
- Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Maren Randi Tandsæther
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
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Garrud TAC, Bell B, Mata-Daboin A, Peixoto-Neves D, Collier DM, Cordero-Morales JF, Jaggar JH. WNK kinase is a vasoactive chloride sensor in endothelial cells. Proc Natl Acad Sci U S A 2024; 121:e2322135121. [PMID: 38568964 PMCID: PMC11009681 DOI: 10.1073/pnas.2322135121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/01/2024] [Indexed: 04/05/2024] Open
Abstract
Endothelial cells (ECs) line the wall of blood vessels and regulate arterial contractility to tune regional organ blood flow and systemic pressure. Chloride (Cl-) is the most abundant anion in ECs and the Cl- sensitive With-No-Lysine (WNK) kinase is expressed in this cell type. Whether intracellular Cl- signaling and WNK kinase regulate EC function to alter arterial contractility is unclear. Here, we tested the hypothesis that intracellular Cl- signaling in ECs regulates arterial contractility and examined the signaling mechanisms involved, including the participation of WNK kinase. Our data obtained using two-photon microscopy and cell-specific inducible knockout mice indicated that acetylcholine, a prototypical vasodilator, stimulated a rapid reduction in intracellular Cl- concentration ([Cl-]i) due to the activation of TMEM16A, a Cl- channel, in ECs of resistance-size arteries. TMEM16A channel-mediated Cl- signaling activated WNK kinase, which phosphorylated its substrate proteins SPAK and OSR1 in ECs. OSR1 potentiated transient receptor potential vanilloid 4 (TRPV4) currents in a kinase-dependent manner and required a conserved binding motif located in the channel C terminus. Intracellular Ca2+ signaling was measured in four dimensions in ECs using a high-speed lightsheet microscope. WNK kinase-dependent activation of TRPV4 channels increased local intracellular Ca2+ signaling in ECs and produced vasodilation. In summary, we show that TMEM16A channel activation reduces [Cl-]i, which activates WNK kinase in ECs. WNK kinase phosphorylates OSR1 which then stimulates TRPV4 channels to produce vasodilation. Thus, TMEM16A channels regulate intracellular Cl- signaling and WNK kinase activity in ECs to control arterial contractility.
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Affiliation(s)
- Tessa A. C. Garrud
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN38163
| | - Briar Bell
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN38163
- Department of Biochemistry and Molecular Biology, McGovern Medical School at The University of Texas Health Science Center at Houston, Houston, TX77030
| | - Alejandro Mata-Daboin
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN38163
| | | | - Daniel M. Collier
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN38163
| | - Julio F. Cordero-Morales
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN38163
- Department of Biochemistry and Molecular Biology, McGovern Medical School at The University of Texas Health Science Center at Houston, Houston, TX77030
| | - Jonathan H. Jaggar
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN38163
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Yarikipati P, Jonusaite S, Pleinis JM, Dominicci Cotto C, Sanchez-Hernandez D, Morrison DE, Goyal S, Schellinger J, Pénalva C, Curtiss J, Rodan AR, Jenny A. Unanticipated domain requirements for Drosophila Wnk kinase in vivo. PLoS Genet 2023; 19:e1010975. [PMID: 37819975 PMCID: PMC10593226 DOI: 10.1371/journal.pgen.1010975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 10/23/2023] [Accepted: 09/14/2023] [Indexed: 10/13/2023] Open
Abstract
WNK (With no Lysine [K]) kinases have critical roles in the maintenance of ion homeostasis and the regulation of cell volume. Their overactivation leads to pseudohypoaldosteronism type II (Gordon syndrome) characterized by hyperkalemia and high blood pressure. More recently, WNK family members have been shown to be required for the development of the nervous system in mice, zebrafish, and flies, and the cardiovascular system of mice and fish. Furthermore, human WNK2 and Drosophila Wnk modulate canonical Wnt signaling. In addition to a well-conserved kinase domain, animal WNKs have a large, poorly conserved C-terminal domain whose function has been largely mysterious. In most but not all cases, WNKs bind and activate downstream kinases OSR1/SPAK, which in turn regulate the activity of various ion transporters and channels. Here, we show that Drosophila Wnk regulates Wnt signaling and cell size during the development of the wing in a manner dependent on Fray, the fly homolog of OSR1/SPAK. We show that the only canonical RF(X)V/I motif of Wnk, thought to be essential for WNK interactions with OSR1/SPAK, is required to interact with Fray in vitro. However, this motif is unexpectedly dispensable for Fray-dependent Wnk functions in vivo during fly development and fluid secretion in the Malpighian (renal) tubules. In contrast, a structure function analysis of Wnk revealed that the less-conserved C-terminus of Wnk, that recently has been shown to promote phase transitions in cell culture, is required for viability in vivo. Our data thus provide novel insights into unexpected in vivo roles of specific WNK domains.
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Affiliation(s)
- Prathibha Yarikipati
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, New York, United States of America
| | - Sima Jonusaite
- Molecular Medicine Program, University of Utah, Salt Lake City, Utah, United States of America
| | - John M. Pleinis
- Molecular Medicine Program, University of Utah, Salt Lake City, Utah, United States of America
| | - Carihann Dominicci Cotto
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, New York, United States of America
| | - David Sanchez-Hernandez
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, New York, United States of America
| | - Daryl E. Morrison
- Molecular Medicine Program, University of Utah, Salt Lake City, Utah, United States of America
| | - Suhani Goyal
- Department of Internal Medicine, Division of Nephrology, University of Texas Southwestern, Dallas, Texas, United States of America
| | - Jeffrey Schellinger
- Department of Internal Medicine, Division of Nephrology, University of Texas Southwestern, Dallas, Texas, United States of America
| | - Clothilde Pénalva
- Molecular Medicine Program, University of Utah, Salt Lake City, Utah, United States of America
| | - Jennifer Curtiss
- Department of Cell & Developmental Biology, New Mexico State University, Las Cruces, New Mexico, United States of America
| | - Aylin R. Rodan
- Molecular Medicine Program, University of Utah, Salt Lake City, Utah, United States of America
- Department of Internal Medicine, Division of Nephrology and Hypertension, University of Utah, Salt Lake City, Utah, United States of America
- Department of Human Genetics, University of Utah, Salt Lake City, Utah, United States of America
- Medical Service, Veterans Affairs Salt Lake City Health Care System, Salt Lake City, Utah, United States of America
| | - Andreas Jenny
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, New York, United States of America
- Department of Genetics, Albert Einstein College of Medicine, New York, New York, United States of America
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Hou CY, Ma CY, Yuh CH. WNK1 kinase signaling in metastasis and angiogenesis. Cell Signal 2022; 96:110371. [DOI: 10.1016/j.cellsig.2022.110371] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 02/06/2023]
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Chen Z, Zhang J, Murillo-de-Ozores AR, Castañeda-Bueno M, D'Amico F, Heilig R, Manning CE, Sorrell FJ, D'Angiolella V, Fischer R, Mulder MPC, Gamba G, Alessi DR, Bullock AN. Sequence and structural variations determining the recruitment of WNK kinases to the KLHL3 E3 ligase. Biochem J 2022; 479:661-675. [PMID: 35179207 PMCID: PMC9022995 DOI: 10.1042/bcj20220019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/12/2022] [Accepted: 02/18/2022] [Indexed: 02/05/2023]
Abstract
The BTB-Kelch protein KLHL3 is a Cullin3-dependent E3 ligase that mediates the ubiquitin-dependent degradation of kinases WNK1-4 to control blood pressure and cell volume. A crystal structure of KLHL3 has defined its binding to an acidic degron motif containing a PXXP sequence that is strictly conserved in WNK1, WNK2 and WNK4. Mutations in the second proline abrograte the interaction causing the hypertension syndrome pseudohypoaldosteronism type II. WNK3 shows a diverged degron motif containing four amino acid substitutions that remove the PXXP motif raising questions as to the mechanism of its binding. To understand this atypical interaction, we determined the crystal structure of the KLHL3 Kelch domain in complex with a WNK3 peptide. The electron density enabled the complete 11-mer WNK-family degron motif to be traced for the first time revealing several conserved features not captured in previous work, including additional salt bridge and hydrogen bond interactions. Overall, the WNK3 peptide adopted a conserved binding pose except for a subtle shift to accommodate bulkier amino acid substitutions at the binding interface. At the centre, the second proline was substituted by WNK3 Thr541, providing a unique phosphorylatable residue among the WNK-family degrons. Fluorescence polarisation and structural modelling experiments revealed that its phosphorylation would abrogate the KLHL3 interaction similarly to hypertension-causing mutations. Together, these data reveal how the KLHL3 Kelch domain can accommodate the binding of multiple WNK isoforms and highlight a potential regulatory mechanism for the recruitment of WNK3.
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Affiliation(s)
- Zhuoyao Chen
- Centre for Medicines Discovery, New Biochemistry Building, University of Oxford, South Parks Road, Oxford OX1 3QU, U.K
| | - Jinwei Zhang
- MRC Protein Phosphorylation and Ubiquitylation Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee DD15EH, Scotland, U.K
| | - Adrián R. Murillo-de-Ozores
- Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Tlalpan, Mexico City, Mexico
| | - María Castañeda-Bueno
- Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Tlalpan, Mexico City, Mexico
| | - Francesca D'Amico
- Oncode Institute and Department of Cell and Chemical Biology, Leiden University Medical Center (LUMC), Einthovenweg 20, 2333, ZC, Leiden, The Netherlands
| | - Raphael Heilig
- Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Roosevelt Drive, Oxford OX3 7FZ, U.K
| | - Charlotte E. Manning
- Centre for Medicines Discovery, New Biochemistry Building, University of Oxford, South Parks Road, Oxford OX1 3QU, U.K
| | - Fiona J. Sorrell
- Centre for Medicines Discovery, New Biochemistry Building, University of Oxford, South Parks Road, Oxford OX1 3QU, U.K
| | - Vincenzo D'Angiolella
- Department of Oncology, Cancer Research U.K.. and Medical Research Council Institute for Radiation Oncology, University of Oxford, Roosevelt Drive, Oxford OX3 7DQ, U.K
| | - Roman Fischer
- Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Roosevelt Drive, Oxford OX3 7FZ, U.K
| | - Monique P. C. Mulder
- Oncode Institute and Department of Cell and Chemical Biology, Leiden University Medical Center (LUMC), Einthovenweg 20, 2333, ZC, Leiden, The Netherlands
| | - Gerardo Gamba
- Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Tlalpan, Mexico City, Mexico
- Molecular Physiology Unit, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Tlalpan, Mexico City, Mexico
| | - Dario R. Alessi
- MRC Protein Phosphorylation and Ubiquitylation Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee DD15EH, Scotland, U.K
| | - Alex N. Bullock
- Centre for Medicines Discovery, New Biochemistry Building, University of Oxford, South Parks Road, Oxford OX1 3QU, U.K
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