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Costa CRR, Chalgoumi R, Baker A, Guillou C, Yamaguti PM, Simancas Escorcia V, Abbad L, Amorin BR, de Lima CL, Cannaya V, Benassarou M, Berdal A, Chatziantoniou C, Cases O, Cosette P, Kozyraki R, Acevedo AC. Gingival proteomics reveals the role of TGF beta and YAP/TAZ signaling in Raine syndrome fibrosis. Sci Rep 2024; 14:9497. [PMID: 38664418 PMCID: PMC11045870 DOI: 10.1038/s41598-024-59713-0] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 04/15/2024] [Indexed: 04/28/2024] Open
Abstract
Raine syndrome (RNS) is a rare autosomal recessive osteosclerotic dysplasia. RNS is caused by loss-of-function disease-causative variants of the FAM20C gene that encodes a kinase that phosphorylates most of the secreted proteins found in the body fluids and extracellular matrix. The most common RNS clinical features are generalized osteosclerosis, facial dysmorphism, intracerebral calcifications and respiratory defects. In non-lethal RNS forms, oral traits include a well-studied hypoplastic amelogenesis imperfecta (AI) and a much less characterized gingival phenotype. We used immunomorphological, biochemical, and siRNA approaches to analyze gingival tissues and primary cultures of gingival fibroblasts of two unrelated, previously reported RNS patients. We showed that fibrosis, pathological gingival calcifications and increased expression of various profibrotic and pro-osteogenic proteins such as POSTN, SPARC and VIM were common findings. Proteomic analysis of differentially expressed proteins demonstrated that proteins involved in extracellular matrix (ECM) regulation and related to the TGFβ/SMAD signaling pathway were increased. Functional analyses confirmed the upregulation of TGFβ/SMAD signaling and subsequently uncovered the involvement of two closely related transcription cofactors important in fibrogenesis, Yes-associated protein (YAP) and transcriptional coactivator with PDZ-binding motif (TAZ). Knocking down of FAM20C confirmed the TGFβ-YAP/TAZ interplay indicating that a profibrotic loop enabled gingival fibrosis in RNS patients. In summary, our in vivo and in vitro data provide a detailed description of the RNS gingival phenotype. They show that gingival fibrosis and calcifications are associated with, and most likely caused by excessed ECM production and disorganization. They furthermore uncover the contribution of increased TGFβ-YAP/TAZ signaling in the pathogenesis of the gingival fibrosis.
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Affiliation(s)
- Cláudio Rodrigues Rezende Costa
- Centre de Recherche des Cordeliers, Sorbonne Université, INSERM, Université de Paris Cité, Oral Molecular Pathophysiology, 75006, Paris, France
- Oral Center for Inherited Diseases, University Hospital of Brasília, Oral Histopathology Laboratory, Department of Dentistry, Health Sciences Faculty, University of Brasília (UnB), Brasília, Brazil
- Department of Dentistry, Health Group of Natal (GSAU-NT), Brazilian Air Force, Natal, Parnamirim, Brazil
| | - Rym Chalgoumi
- Centre de Recherche des Cordeliers, Sorbonne Université, INSERM, Université de Paris Cité, Oral Molecular Pathophysiology, 75006, Paris, France
| | - Amina Baker
- Centre de Recherche des Cordeliers, Sorbonne Université, INSERM, Université de Paris Cité, Oral Molecular Pathophysiology, 75006, Paris, France
| | - Clément Guillou
- Rouen University, INSA Rouen Normandie, CNRS, Normandie Univ, PBS UMR 6270, 76000, Rouen, France
- Rouen University, INSERM US51, CNRS UAR 2026, HeRacles PISSARO, 76000, Rouen, France
| | - Paulo Marcio Yamaguti
- Oral Center for Inherited Diseases, University Hospital of Brasília, Oral Histopathology Laboratory, Department of Dentistry, Health Sciences Faculty, University of Brasília (UnB), Brasília, Brazil
| | - Victor Simancas Escorcia
- Centre de Recherche des Cordeliers, Sorbonne Université, INSERM, Université de Paris Cité, Oral Molecular Pathophysiology, 75006, Paris, France
- Grupo de Investigación GENOMA, Universidad del Sinú, Cartagena, Colombia
| | - Lilia Abbad
- MRS1155, INSERM, Sorbonne Université, 75020, Paris, France
| | - Bruna Rabelo Amorin
- Oral Center for Inherited Diseases, University Hospital of Brasília, Oral Histopathology Laboratory, Department of Dentistry, Health Sciences Faculty, University of Brasília (UnB), Brasília, Brazil
| | - Caroline Lourenço de Lima
- Oral Center for Inherited Diseases, University Hospital of Brasília, Oral Histopathology Laboratory, Department of Dentistry, Health Sciences Faculty, University of Brasília (UnB), Brasília, Brazil
| | - Vidjea Cannaya
- Centre de Recherche des Cordeliers, Sorbonne Université, INSERM, Université de Paris Cité, Oral Molecular Pathophysiology, 75006, Paris, France
| | - Mourad Benassarou
- Service de Chirurgie Maxillo-Faciale et Stomatologie, Hôpital de La Pitié Salpétrière, Sorbonne Université, 75006, Paris, France
| | - Ariane Berdal
- Centre de Recherche des Cordeliers, Sorbonne Université, INSERM, Université de Paris Cité, Oral Molecular Pathophysiology, 75006, Paris, France
- CRMR O-RARES, Hôpital Rothshild, UFR d'Odontologie-Garancière, Université de Paris Cité, 75012, Paris, France
| | | | - Olivier Cases
- Centre de Recherche des Cordeliers, Sorbonne Université, INSERM, Université de Paris Cité, Oral Molecular Pathophysiology, 75006, Paris, France
| | - Pascal Cosette
- Rouen University, INSA Rouen Normandie, CNRS, Normandie Univ, PBS UMR 6270, 76000, Rouen, France
- Rouen University, INSERM US51, CNRS UAR 2026, HeRacles PISSARO, 76000, Rouen, France
| | - Renata Kozyraki
- Centre de Recherche des Cordeliers, Sorbonne Université, INSERM, Université de Paris Cité, Oral Molecular Pathophysiology, 75006, Paris, France.
- CRMR O-RARES, Hôpital Rothshild, UFR d'Odontologie-Garancière, Université de Paris Cité, 75012, Paris, France.
- Rouen University, UFR SANTE ROUEN NORMANDIE, Inserm 1096, 76000, Rouen, France.
| | - Ana Carolina Acevedo
- Centre de Recherche des Cordeliers, Sorbonne Université, INSERM, Université de Paris Cité, Oral Molecular Pathophysiology, 75006, Paris, France
- Oral Center for Inherited Diseases, University Hospital of Brasília, Oral Histopathology Laboratory, Department of Dentistry, Health Sciences Faculty, University of Brasília (UnB), Brasília, Brazil
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Verscaj CP, Smith C, Homeyer M, Matalon DR. Raine syndrome: Prenatally identified severe craniofacial phenotype with multisuture synostosis and brain abnormalities associated with variants in FAM20C. Prenat Diagn 2024; 44:369-372. [PMID: 38163266 DOI: 10.1002/pd.6506] [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: 06/23/2023] [Revised: 11/20/2023] [Accepted: 12/10/2023] [Indexed: 01/03/2024]
Abstract
Raine syndrome (MIM 259775) is a rare autosomal recessive disorder, first described by Raine et al. in 1989, with an estimated prevalence of <1/1,000,000. This is due to pathogenic variants in FAM20C characterized by osteosclerosis, typical craniofacial features, and brain calcifications. Here, we report a novel variant in FAM20C, describe a uniquely severe craniofacial and CNS phenotype of Raine syndrome, and correlate it with prenatal findings. Fetal phenotyping was based on ultrasound and MRI. Solo exome sequencing was performed from DNA extracted from postmortem skin biopsy. Targeted parental variant testing was subsequently performed. A homozygous missense variant NM_020223.4 (c.1445 G > A (p.Gly482Glu)) was identified in FAM20C associated with Raine syndrome. The infant had the characteristic dysmorphic features seen in Raine syndrome. He had particularly significant CNS manifestations consisting of multisuture craniosynostosis with protrusion of the brain parenchyma through fontanelles and cranial lacunae. Histological sections of the brain showed marked periventricular gliosis with regions of infarction, hemorrhage, and cavitation with global periventricular leukomalacia. Numerous dystrophic calcifications were diffusely present. Here, we demonstrate the identification of a novel variant in FAM20C in an infant with the characteristic features seen in Raine syndrome. The patient expands the characteristic phenotype of Raine syndrome to include a uniquely severe CNS phenotype, first identified on prenatal imaging.
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Affiliation(s)
- Courtney P Verscaj
- Division of Newborn Medicine, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Carly Smith
- Perinatal Diagnostic Center, Stanford Children's Health, Stanford, California, USA
| | - Margaret Homeyer
- Perinatal Diagnostic Center, Stanford Children's Health, Stanford, California, USA
| | - Dena R Matalon
- Perinatal Diagnostic Center, Stanford Children's Health, Stanford, California, USA
- Department of Pediatrics, Division of Medical Genetics, Stanford University, Stanford, California, USA
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3
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Evans-Yamamoto D, Dubé AK, Saha G, Plante S, Bradley D, Gagnon-Arsenault I, Landry CR. Parallel Nonfunctionalization of CK1δ/ε Kinase Ohnologs Following a Whole-Genome Duplication Event. Mol Biol Evol 2023; 40:msad246. [PMID: 37979156 PMCID: PMC10699747 DOI: 10.1093/molbev/msad246] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 11/07/2023] [Indexed: 11/20/2023] Open
Abstract
Whole-genome duplication (WGD) followed by speciation allows us to examine the parallel evolution of ohnolog pairs. In the yeast family Saccharomycetaceae, HRR25 is a rare case of repeated ohnolog maintenance. This gene has reverted to a single copy in Saccharomyces cerevisiae where it is now essential, but has been maintained as pairs in at least 7 species post-WGD. In S. cerevisiae, HRR25 encodes the casein kinase 1δ/ε and plays a role in a variety of functions through its kinase activity and protein-protein interactions (PPIs). We hypothesized that the maintenance of duplicated HRR25 ohnologs could be a result of repeated subfunctionalization. We tested this hypothesis through a functional complementation assay in S. cerevisiae, testing all pairwise combinations of 25 orthologs (including 7 ohnolog pairs). Contrary to our expectations, we observed no cases of pair-dependent complementation, which would have supported the subfunctionalization hypothesis. Instead, most post-WGD species have one ohnolog that failed to complement, suggesting their nonfunctionalization or neofunctionalization. The ohnologs incapable of complementation have undergone more rapid protein evolution, lost most PPIs that were observed for their functional counterparts and singletons from post-WGD and non-WGD species, and have nonconserved cellular localization, consistent with their ongoing loss of function. The analysis in Naumovozyma castellii shows that the noncomplementing ohnolog is expressed at a lower level and has become nonessential. Taken together, our results indicate that HRR25 orthologs are undergoing gradual nonfunctionalization.
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Affiliation(s)
- Daniel Evans-Yamamoto
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec, QC, G1V 0A6, Canada
- Département de Biochimie, de Microbiologie et de Bio-informatique, Faculté des Sciences et de Génie, Université Laval, Québec, QC, G1V 0A6, Canada
- Département de Biologie, Faculté des Sciences et de Génie, Université Laval, Québec, QC, G1V 0A6, Canada
- PROTEO, Le regroupement québécois de recherche sur la fonction, l’ingénierie et les applications des protéines, Université Laval, Québec, QC, G1V 0A6, Canada
- Centre de Recherche sur les Données Massives (CRDM), Université Laval, Québec, QC, G1V 0A6, Canada
- Systems Biology Program, Graduate School of Media and Governance, Keio University, Fujisawa, Kanagawa, 252-0882, Japan
- Institute for Advanced Biosciences, Keio University, Fujisawa, Kanagawa, 252-0882, Japan
| | - Alexandre K Dubé
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec, QC, G1V 0A6, Canada
- Département de Biochimie, de Microbiologie et de Bio-informatique, Faculté des Sciences et de Génie, Université Laval, Québec, QC, G1V 0A6, Canada
- Département de Biologie, Faculté des Sciences et de Génie, Université Laval, Québec, QC, G1V 0A6, Canada
- PROTEO, Le regroupement québécois de recherche sur la fonction, l’ingénierie et les applications des protéines, Université Laval, Québec, QC, G1V 0A6, Canada
- Centre de Recherche sur les Données Massives (CRDM), Université Laval, Québec, QC, G1V 0A6, Canada
| | - Gourav Saha
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec, QC, G1V 0A6, Canada
- Département de Biochimie, de Microbiologie et de Bio-informatique, Faculté des Sciences et de Génie, Université Laval, Québec, QC, G1V 0A6, Canada
- Département de Biologie, Faculté des Sciences et de Génie, Université Laval, Québec, QC, G1V 0A6, Canada
- PROTEO, Le regroupement québécois de recherche sur la fonction, l’ingénierie et les applications des protéines, Université Laval, Québec, QC, G1V 0A6, Canada
- Centre de Recherche sur les Données Massives (CRDM), Université Laval, Québec, QC, G1V 0A6, Canada
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani K K Birla Goa Campus, South Goa, India
| | - Samuel Plante
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec, QC, G1V 0A6, Canada
- Département de Biochimie, de Microbiologie et de Bio-informatique, Faculté des Sciences et de Génie, Université Laval, Québec, QC, G1V 0A6, Canada
- Département de Biologie, Faculté des Sciences et de Génie, Université Laval, Québec, QC, G1V 0A6, Canada
- PROTEO, Le regroupement québécois de recherche sur la fonction, l’ingénierie et les applications des protéines, Université Laval, Québec, QC, G1V 0A6, Canada
- Centre de Recherche sur les Données Massives (CRDM), Université Laval, Québec, QC, G1V 0A6, Canada
| | - David Bradley
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec, QC, G1V 0A6, Canada
- Département de Biochimie, de Microbiologie et de Bio-informatique, Faculté des Sciences et de Génie, Université Laval, Québec, QC, G1V 0A6, Canada
- Département de Biologie, Faculté des Sciences et de Génie, Université Laval, Québec, QC, G1V 0A6, Canada
- PROTEO, Le regroupement québécois de recherche sur la fonction, l’ingénierie et les applications des protéines, Université Laval, Québec, QC, G1V 0A6, Canada
- Centre de Recherche sur les Données Massives (CRDM), Université Laval, Québec, QC, G1V 0A6, Canada
| | - Isabelle Gagnon-Arsenault
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec, QC, G1V 0A6, Canada
- Département de Biochimie, de Microbiologie et de Bio-informatique, Faculté des Sciences et de Génie, Université Laval, Québec, QC, G1V 0A6, Canada
- Département de Biologie, Faculté des Sciences et de Génie, Université Laval, Québec, QC, G1V 0A6, Canada
- PROTEO, Le regroupement québécois de recherche sur la fonction, l’ingénierie et les applications des protéines, Université Laval, Québec, QC, G1V 0A6, Canada
- Centre de Recherche sur les Données Massives (CRDM), Université Laval, Québec, QC, G1V 0A6, Canada
| | - Christian R Landry
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec, QC, G1V 0A6, Canada
- Département de Biochimie, de Microbiologie et de Bio-informatique, Faculté des Sciences et de Génie, Université Laval, Québec, QC, G1V 0A6, Canada
- Département de Biologie, Faculté des Sciences et de Génie, Université Laval, Québec, QC, G1V 0A6, Canada
- PROTEO, Le regroupement québécois de recherche sur la fonction, l’ingénierie et les applications des protéines, Université Laval, Québec, QC, G1V 0A6, Canada
- Centre de Recherche sur les Données Massives (CRDM), Université Laval, Québec, QC, G1V 0A6, Canada
- Systems Biology Program, Graduate School of Media and Governance, Keio University, Fujisawa, Kanagawa, 252-0882, Japan
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Shah VN, Neumeier J, Huberdeau MQ, Zeitler DM, Bruckmann A, Meister G, Simard MJ. Casein kinase 1 and 2 phosphorylate Argonaute proteins to regulate miRNA-mediated gene silencing. EMBO Rep 2023; 24:e57250. [PMID: 37712432 PMCID: PMC10626430 DOI: 10.15252/embr.202357250] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 08/18/2023] [Accepted: 09/01/2023] [Indexed: 09/16/2023] Open
Abstract
MicroRNAs (miRNAs) together with Argonaute (AGO) proteins form the core of the RNA-induced silencing complex (RISC) to regulate gene expression of their target RNAs post-transcriptionally. Argonaute proteins are subjected to intensive regulation via various post-translational modifications that can affect their stability, silencing efficacy and specificity for targeted gene regulation. We report here that in Caenorhabditis elegans, two conserved serine/threonine kinases - casein kinase 1 alpha 1 (CK1A1) and casein kinase 2 (CK2) - regulate a highly conserved phosphorylation cluster of 4 Serine residues (S988:S998) on the miRNA-specific AGO protein ALG-1. We show that CK1A1 phosphorylates ALG-1 at sites S992 and S995, while CK2 phosphorylates ALG-1 at sites S988 and S998. Furthermore, we demonstrate that phospho-mimicking mutants of the entire S988:S998 cluster rescue the various developmental defects observed upon depleting CK1A1 and CK2. In humans, we show that CK1A1 also acts as a priming kinase of this cluster on AGO2. Altogether, our data suggest that phosphorylation of AGO within the cluster by CK1A1 and CK2 is required for efficient miRISC-target RNA binding and silencing.
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Affiliation(s)
- Vivek Nilesh Shah
- CHU de Québec‐Université Laval Research Center (Oncology Division)Quebec CityQuebecCanada
- Université Laval Cancer Research CentreQuebec CityQuebecCanada
| | - Julia Neumeier
- Regensburg Center for Biochemistry (RCB), Laboratory for RNA BiologyUniversity of RegensburgRegensburgGermany
| | - Miguel Quévillon Huberdeau
- CHU de Québec‐Université Laval Research Center (Oncology Division)Quebec CityQuebecCanada
- Université Laval Cancer Research CentreQuebec CityQuebecCanada
| | - Daniela M Zeitler
- Regensburg Center for Biochemistry (RCB), Laboratory for RNA BiologyUniversity of RegensburgRegensburgGermany
| | - Astrid Bruckmann
- Regensburg Center for Biochemistry (RCB), Laboratory for RNA BiologyUniversity of RegensburgRegensburgGermany
| | - Gunter Meister
- Regensburg Center for Biochemistry (RCB), Laboratory for RNA BiologyUniversity of RegensburgRegensburgGermany
| | - Martin J Simard
- CHU de Québec‐Université Laval Research Center (Oncology Division)Quebec CityQuebecCanada
- Université Laval Cancer Research CentreQuebec CityQuebecCanada
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Qu L, Liu M, Zheng L, Wang X, Xue H. Data-independent acquisition-based global phosphoproteomics reveal the diverse roles of casein kinase 1 in plant development. Sci Bull (Beijing) 2023; 68:2077-2093. [PMID: 37599176 DOI: 10.1016/j.scib.2023.08.017] [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: 06/02/2023] [Revised: 06/29/2023] [Accepted: 07/10/2023] [Indexed: 08/22/2023]
Abstract
Casein kinase 1 (CK1) is serine/threonine protein kinase highly conserved among eukaryotes, and regulates multiple developmental and signaling events through phosphorylation of target proteins. Arabidopsis early flowering 1 (EL1)-like (AELs) are plant-specific CK1s with varied functions, but identification and validation of their substrates is a major bottleneck in elucidating their physiological roles. Here, we conducted a quantitative phosphoproteomic analysis in data-independent acquisition mode to systematically identify CK1 substrates. We extracted proteins from seedlings overexpressing individual AEL genes (AEL1/2/3/4-OE) or lacking AEL function (all ael single mutants and two triple mutants) to identify the high-confidence phosphopeptides with significantly altered abundance compared to wild-type Col-0. Among these, we selected 3985 phosphopeptides with higher abundance in AEL-OE lines or lower abundance in ael mutants compared with Col-0 as AEL-upregulated phosphopeptides, and defined 1032 phosphoproteins. Eight CK1s substrate motifs were enriched among AEL-upregulated phosphopeptides and verified, which allowed us to predict additional candidate substrates and functions of CK1s. We functionally characterized a newly identified substrate C3H17, a CCCH-type zinc finger transcription factor, through biochemical and genetic analyses, revealing a role for AEL-promoted C3H17 protein stability and transactivation activity in regulating embryogenesis. As CK1s are highly conserved across eukaryotes, we searched the rice, mouse, and human protein databases using newly identified CK1 substrate motifs, yielding many more candidate substrates than currently known, largely expanding our understanding of the common and distinct functions exerted by CK1s in Arabidopsis and humans, facilitating future mechanistic studies of CK1-mediated phosphorylation in different species.
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Affiliation(s)
- Li Qu
- Shanghai Collaborative Innovation Center of Agri-Seeds, Joint Center for Single Cell Biology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Moyang Liu
- Shanghai Collaborative Innovation Center of Agri-Seeds, Joint Center for Single Cell Biology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Lingli Zheng
- Shanghai Collaborative Innovation Center of Agri-Seeds, Joint Center for Single Cell Biology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xu Wang
- Shanghai Collaborative Innovation Center of Agri-Seeds, Joint Center for Single Cell Biology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Hongwei Xue
- Shanghai Collaborative Innovation Center of Agri-Seeds, Joint Center for Single Cell Biology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China.
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6
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Andrews A, Nair SB, Singh D. Prenatal sonographic phenotype of Raine syndrome: detection of novel FAM20C gene mutation at 20 weeks. Ultrasound Obstet Gynecol 2023; 62:300-302. [PMID: 36905680 DOI: 10.1002/uog.26200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/01/2023] [Accepted: 03/02/2023] [Indexed: 06/18/2023]
Affiliation(s)
- A Andrews
- Department of Fetal Medicine, Lifeline Super Speciality Hospital, Adoor, Kerala, India
| | - S B Nair
- Department of Medical Genetics, Lifeline Super Speciality Hospital, Adoor, Kerala, India
| | - D Singh
- Department of Radio-diagnosis, Prime Imaging and Prenatal Diagnostics, Sector 24 D, Chandigarh, India
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Philpott JM, Freeberg AM, Park J, Lee K, Ricci CG, Hunt SR, Narasimamurthy R, Segal DH, Robles R, Cai Y, Tripathi S, McCammon JA, Virshup DM, Chiu JC, Lee C, Partch CL. PERIOD phosphorylation leads to feedback inhibition of CK1 activity to control circadian period. Mol Cell 2023; 83:1677-1692.e8. [PMID: 37207626 DOI: 10.1016/j.molcel.2023.04.019] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 02/16/2023] [Accepted: 04/19/2023] [Indexed: 05/21/2023]
Abstract
PERIOD (PER) and Casein Kinase 1δ regulate circadian rhythms through a phosphoswitch that controls PER stability and repressive activity in the molecular clock. CK1δ phosphorylation of the familial advanced sleep phase (FASP) serine cluster embedded within the Casein Kinase 1 binding domain (CK1BD) of mammalian PER1/2 inhibits its activity on phosphodegrons to stabilize PER and extend circadian period. Here, we show that the phosphorylated FASP region (pFASP) of PER2 directly interacts with and inhibits CK1δ. Co-crystal structures in conjunction with molecular dynamics simulations reveal how pFASP phosphoserines dock into conserved anion binding sites near the active site of CK1δ. Limiting phosphorylation of the FASP serine cluster reduces product inhibition, decreasing PER2 stability and shortening circadian period in human cells. We found that Drosophila PER also regulates CK1δ via feedback inhibition through the phosphorylated PER-Short domain, revealing a conserved mechanism by which PER phosphorylation near the CK1BD regulates CK1 kinase activity.
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Affiliation(s)
- Jonathan M Philpott
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Alfred M Freeberg
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Jiyoung Park
- Department of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL 32306, USA
| | - Kwangjun Lee
- Department of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL 32306, USA
| | - Clarisse G Ricci
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093, USA
| | - Sabrina R Hunt
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Rajesh Narasimamurthy
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore 169857, Singapore
| | - David H Segal
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Rafael Robles
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Yao Cai
- Department of Entomology and Nematology, University of California, Davis, Davis, CA 95616, USA
| | - Sarvind Tripathi
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - J Andrew McCammon
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093, USA; Department of Pharmacology, University of California, San Diego, La Jolla, CA 92093, USA
| | - David M Virshup
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore 169857, Singapore; Department of Pediatrics, Duke University Medical Center, Durham, NC 27710, USA
| | - Joanna C Chiu
- Department of Entomology and Nematology, University of California, Davis, Davis, CA 95616, USA
| | - Choogon Lee
- Department of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL 32306, USA.
| | - Carrie L Partch
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Center for Circadian Biology, University of California, San Diego, La Jolla, CA 92093, USA.
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8
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Piras R, Ko EY, Barrett C, De Simone M, Lin X, Broz MT, Tessaro FHG, Castillo-Martin M, Cordon-Cardo C, Goodridge HS, Di Vizio D, Batish M, Lawrenson K, Chen YG, Chan KS, Guarnerio J. circCsnk1g3- and circAnkib1-regulated interferon responses in sarcoma promote tumorigenesis by shaping the immune microenvironment. Nat Commun 2022; 13:7243. [PMID: 36433954 PMCID: PMC9700836 DOI: 10.1038/s41467-022-34872-8] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 11/09/2022] [Indexed: 11/26/2022] Open
Abstract
Exonic circular RNAs (circRNAs) produce predominantly non-coding RNA species that have been recently profiled in many tumors. However, their functional contribution to cancer progression is still poorly understood. Here, we identify the circRNAs expressed in soft tissue sarcoma cells and explore how the circRNAs regulate sarcoma growth in vivo. We show that circCsnk1g3 and circAnkib1 promote tumor growth by shaping a pro-tumorigenic microenvironment, possibly due to their capabilities to regulate tumor-promoting elements extrinsic to the tumor cells. Accordingly, circCsnk1g3 and circAnkib1 can control the expression of interferon-related genes and pro-inflammatory factors in the sarcoma cells, thus directing immune cell recruitment into the tumor mass, and hence their activation. Mechanistically, circRNAs may repress pro-inflammatory elements by buffering activation of the pathways mediated by RIG-I, the cytosolic viral RNA sensor. The current findings suggest that the targeting of specific circRNAs could augment the efficacy of tumor and immune response to mainstay therapies.
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Affiliation(s)
- Roberta Piras
- Department of Radiation Oncology, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Emily Y Ko
- Department of Radiation Oncology, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Connor Barrett
- Department of Medical and Molecular Sciences, University of Delaware, Newark, DE, USA
| | - Marco De Simone
- Department of Radiation Oncology, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Xianzhi Lin
- Women's Cancer Research Program at Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Marina T Broz
- Department of Radiation Oncology, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Fernando H G Tessaro
- Department of Radiation Oncology, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Mireia Castillo-Martin
- Department of Pathology, Mount Sinai School of Medicine, The Mount Sinai Medical Center, New York, NY, 10029, USA
| | - Carlos Cordon-Cardo
- Department of Pathology, Mount Sinai School of Medicine, The Mount Sinai Medical Center, New York, NY, 10029, USA
| | - Helen S Goodridge
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Research Division of Immunology, Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Dolores Di Vizio
- Department of Surgery and Department of Pathology, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Mona Batish
- Department of Medical and Molecular Sciences, University of Delaware, Newark, DE, USA
| | - Kate Lawrenson
- Women's Cancer Research Program at Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Center for Bioinformatics and Functional Genomics, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Y Grace Chen
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA
| | - Keith Syson Chan
- Department of Pathology, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Jlenia Guarnerio
- Department of Radiation Oncology, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
- David Geffen Medical School, Department of Hematology Oncology, UCLA, Los Angeles, CA, USA.
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9
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Li Y, Li Y, Su Q, Wu Y, Zhang R, Li Y, Ma Y, Ma H, Guo X, Zhu L, Min L, Zhang X. High temperature induces male sterility via MYB66-MYB4-Casein kinase I signaling in cotton. Plant Physiol 2022; 189:2091-2109. [PMID: 35522025 PMCID: PMC9342968 DOI: 10.1093/plphys/kiac213] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 04/12/2022] [Indexed: 06/14/2023]
Abstract
High temperature (HT) causes male sterility and decreases crop yields. Our previous works have demonstrated that sugar and auxin signaling pathways, Gossypium hirsutum Casein kinase I (GhCKI), and DNA methylation are all involved in HT-induced male sterility in cotton. However, the signaling mechanisms leading to distinct GhCKI expression patterns induced by HT between HT-tolerant and HT-sensitive cotton anthers remain largely unknown. Here, we identified a GhCKI promoter (ProGhCKI) region that functions in response to HT in anthers and found the transcription factor GhMYB4 binds to this region to act as an upstream positive regulator of GhCKI. In the tapetum of early-stage cotton anthers, upregulated expression of GhMYB4 under HT and overexpressed GhMYB4 under normal temperature both led to severe male sterility phenotypes, coupled with enhanced expression of GhCKI. We also found that GhMYB4 interacts with GhMYB66 to form a heterodimer to enhance its binding to ProGhCKI. However, GhMYB66 showed an expression pattern similar to GhMYB4 under HT but did not directly bind to ProGhCKI. Furthermore, HT reduced siRNA-mediated CHH DNA methylations in the GhMYB4 promoter, which enhanced the expression of GhMYB4 in tetrad stage anthers and promoted the formation of the GhMYB4/GhMYB66 heterodimer, which in turn elevated the transcription of GhCKI in the tapetum, leading to male sterility. Overall, we shed light on the GhMYB66-GhMYB4-GhCKI regulatory pathway in response to HT in cotton anthers.
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Affiliation(s)
| | | | - Qian Su
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Yuanlong Wu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Rui Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Yawei Li
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Yizan Ma
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Huanhuan Ma
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Xiaoping Guo
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Longfu Zhu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | | | - Xianlong Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, Hubei, China
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10
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Agajanian MJ, Potjewyd FM, Bowman BM, Solomon S, LaPak KM, Bhatt DP, Smith JL, Goldfarb D, Axtman AD, Major MB. Protein proximity networks and functional evaluation of the casein kinase 1 gamma family reveal unique roles for CK1γ3 in WNT signaling. J Biol Chem 2022; 298:101986. [PMID: 35487243 PMCID: PMC9157009 DOI: 10.1016/j.jbc.2022.101986] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 12/22/2021] [Revised: 04/18/2022] [Accepted: 04/20/2022] [Indexed: 11/25/2022] Open
Abstract
Aberrant activation or suppression of WNT/β-catenin signaling contributes to cancer initiation and progression, neurodegeneration, and bone disease. However, despite great need and more than 40 years of research, targeted therapies for the WNT pathway have yet to be fully realized. Kinases are considered exceptionally druggable and occupy key nodes within the WNT signaling network, but several pathway-relevant kinases remain understudied and "dark." Here, we studied the function of the casein kinase 1γ (CSNK1γ) subfamily of human kinases and their roles in WNT signaling. miniTurbo-based proximity biotinylation and mass spectrometry analysis of CSNK1γ1, CSNK1γ2, and CSNK1γ3 revealed numerous components of the β-catenin-dependent and β-catenin-independent WNT pathways. In gain-of-function experiments, we found that CSNK1γ3 but not CSNK1γ1 or CSNK1γ2 activated β-catenin-dependent WNT signaling, with minimal effect on other signaling pathways. We also show that within the family, CSNK1γ3 expression uniquely induced low-density lipoprotein receptor-related protein 6 phosphorylation, which mediates downstream WNT signaling transduction. Conversely, siRNA-mediated silencing of CSNK1γ3 alone had no impact on WNT signaling, though cosilencing of all three family members decreased WNT pathway activity. Finally, we characterized two moderately selective and potent small-molecule inhibitors of the CSNK1γ family. We show that these inhibitors and a CSNK1γ3 kinase-dead mutant suppressed but did not eliminate WNT-driven low-density lipoprotein receptor-related protein 6 phosphorylation and β-catenin stabilization. Our data suggest that while CSNK1γ3 expression uniquely drives pathway activity, potential functional redundancy within the family necessitates loss of all three family members to suppress the WNT signaling pathway.
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Affiliation(s)
- Megan J Agajanian
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA; Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA; Department of Cell Biology and Physiology, Washington University in St Louis, St Louis, Missouri, USA
| | - Frances M Potjewyd
- Division of Chemical Biology and Medicinal Chemistry, Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Brittany M Bowman
- Department of Cell Biology and Physiology, Washington University in St Louis, St Louis, Missouri, USA
| | - Smaranda Solomon
- Institute for Informatics, School of Medicine, Washington University in St Louis, St Louis, Missouri, USA
| | - Kyle M LaPak
- Department of Cell Biology and Physiology, Washington University in St Louis, St Louis, Missouri, USA
| | - Dhaval P Bhatt
- Department of Cell Biology and Physiology, Washington University in St Louis, St Louis, Missouri, USA
| | - Jeffery L Smith
- Division of Chemical Biology and Medicinal Chemistry, Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Dennis Goldfarb
- Department of Cell Biology and Physiology, Washington University in St Louis, St Louis, Missouri, USA; Institute for Informatics, School of Medicine, Washington University in St Louis, St Louis, Missouri, USA
| | - Alison D Axtman
- Division of Chemical Biology and Medicinal Chemistry, Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Michael B Major
- Department of Cell Biology and Physiology, Washington University in St Louis, St Louis, Missouri, USA; Department of Otolaryngology, School of Medicine, Washington University in St Louis, St Louis, Missouri, USA.
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11
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Li Y, Li Y, Chen Y, Wang M, Yang J, Zhang X, Zhu L, Kong J, Min L. Genome-wide identification, evolutionary estimation and functional characterization of two cotton CKI gene types. BMC Plant Biol 2021; 21:229. [PMID: 34022812 PMCID: PMC8140429 DOI: 10.1186/s12870-021-02990-y] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 04/21/2021] [Indexed: 05/03/2023]
Abstract
BACKGROUND Casein kinase I (CKI) is a kind of serine/threonine protein kinase highly conserved in plants and animals. Although molecular function of individual member of CKI family has been investigated in Arabidopsis, little is known about their evolution and functions in Gossypium. RESULTS In this study, five cotton species were applied to study CKI gene family in cotton, twenty-two species were applied to trace the origin and divergence of CKI genes. Four important insights were gained: (i) the cotton CKI genes were classified into two types based on their structural characteristics; (ii) two types of CKI genes expanded with tetraploid event in cotton; (iii) two types of CKI genes likely diverged about 1.5 billion years ago when red and green algae diverged; (iv) two types of cotton CKI genes which highly expressed in leaves showed stronger response to photoperiod (circadian clock) and light signal, and most two types of CKI genes highly expressed in anther showed identical heat inducible expression during anther development in tetraploid cotton (Gossypium hirsutum). CONCLUSION This study provides genome-wide insights into the evolutionary history of cotton CKI genes and lays a foundation for further investigation of the functional differentiation of two types of CKI genes in specific developmental processes and environmental stress conditions.
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Affiliation(s)
- Yanlong Li
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan , 430070, Hubei, China
| | - Yaoyao Li
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan , 430070, Hubei, China
- College of Life Sciences, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou , 510642, Guangdong, China
| | - Yuanyuan Chen
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan , 430070, Hubei, China
| | - Maojun Wang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan , 430070, Hubei, China
| | - Jing Yang
- Institute of Economic Crops, Xinjiang Academy of Agricultural Sciences, Xinjiang, 830091, China
| | - Xianlong Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan , 430070, Hubei, China
| | - Longfu Zhu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan , 430070, Hubei, China
| | - Jie Kong
- Institute of Economic Crops, Xinjiang Academy of Agricultural Sciences, Xinjiang, 830091, China.
| | - Ling Min
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan , 430070, Hubei, China.
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12
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Fulcher LJ, Sapkota GP. Functions and regulation of the serine/threonine protein kinase CK1 family: moving beyond promiscuity. Biochem J 2020; 477:4603-4621. [PMID: 33306089 PMCID: PMC7733671 DOI: 10.1042/bcj20200506] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [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: 10/28/2020] [Revised: 11/09/2020] [Accepted: 11/10/2020] [Indexed: 12/11/2022]
Abstract
Regarded as constitutively active enzymes, known to participate in many, diverse biological processes, the intracellular regulation bestowed on the CK1 family of serine/threonine protein kinases is critically important, yet poorly understood. Here, we provide an overview of the known CK1-dependent cellular functions and review the emerging roles of CK1-regulating proteins in these processes. We go on to discuss the advances, limitations and pitfalls that CK1 researchers encounter when attempting to define relationships between CK1 isoforms and their substrates, and the challenges associated with ascertaining the correct physiological CK1 isoform for the substrate of interest. With increasing interest in CK1 isoforms as therapeutic targets, methods of selectively inhibiting CK1 isoform-specific processes is warranted, yet challenging to achieve given their participation in such a vast plethora of signalling pathways. Here, we discuss how one might shut down CK1-specific processes, without impacting other aspects of CK1 biology.
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Affiliation(s)
- Luke J. Fulcher
- Department of Biochemistry, University of Oxford, Oxford, U.K
| | - Gopal P. Sapkota
- Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, College of Life Sciences, University of Dundee, Dundee, U.K
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13
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Li Z, Moniruzzaman M, Dastgheyb RM, Yoo S, Wang M, Hao H, Liu J, Casaccia P, Nogueras‐Ortiz C, Kapogiannis D, Slusher BS, Haughey NJ. Astrocytes deliver CK1 to neurons via extracellular vesicles in response to inflammation promoting the translation and amyloidogenic processing of APP. J Extracell Vesicles 2020; 10:e12035. [PMID: 33408815 PMCID: PMC7775567 DOI: 10.1002/jev2.12035] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [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] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 08/20/2020] [Accepted: 09/09/2020] [Indexed: 12/14/2022] Open
Abstract
Chronic inflammation is thought to contribute to the early pathogenesis of Alzheimer's disease (AD). However, the precise mechanism by which inflammatory cytokines promote the formation and deposition of Aβ remains unclear. Available data suggest that applications of inflammatory cytokines onto isolated neurons do not promote the formation of Aβ, suggesting an indirect mechanism of action. Based on evidence astrocyte derived extracellular vesicles (astrocyte derived EVs) regulate neuronal functions, and data that inflammatory cytokines can modify the molecular cargo of astrocyte derived EVs, we sought to determine if IL-1β promotes the formation of Aβ indirectly through actions of astrocyte derived EVs on neurons. The production of Aβ was increased when neurons were exposed to astrocyte derived EVs shed in response to IL-1β (astrocyte derived EV-IL-1β). The mechanism for this effect involved an enrichment of Casein kinase 1 (CK1) in astrocyte derived EV-IL-1β. This astrocyte derived CK1 was delivered to neurons where it formed a complex with neuronal APC and GSK3 to inhibit the β-catenin degradation. Stabilized β-catenin translocated to the nucleus and bound to Hnrnpc gene at promoter regions. An increased cellular concentration of hnRNP C promoted the translation of APP by outcompeting the translational repressor fragile X mental retardation protein (FMRP) bound to APP mRNA. An increased amount of APP protein became co-localized with BACE1 in enlarged membrane microdomains concurrent with increased production of Aβ. These findings identify a mechanism whereby inflammation promotes the formation of Aβ through the actions of astrocyte derived EV-IL-1β on neurons.
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Affiliation(s)
- Zhigang Li
- Department of Neurology, Richard T. Johnson Division of Neuroimmunology and Neurological InfectionsJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Mohammed Moniruzzaman
- Department of Neurology, Richard T. Johnson Division of Neuroimmunology and Neurological InfectionsJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Raha M. Dastgheyb
- Department of Neurology, Richard T. Johnson Division of Neuroimmunology and Neurological InfectionsJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Seung‐Wan Yoo
- Department of Neurology, Richard T. Johnson Division of Neuroimmunology and Neurological InfectionsJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Meina Wang
- Department of Neurology, Richard T. Johnson Division of Neuroimmunology and Neurological InfectionsJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Hongbo Hao
- Advanced Science Research Center at the Graduate Center, Neuroscience InitiativeCity University of New YorkNew YorkNew YorkUSA
| | - Jia Liu
- Advanced Science Research Center at the Graduate Center, Neuroscience InitiativeCity University of New YorkNew YorkNew YorkUSA
| | - Patrizia Casaccia
- Advanced Science Research Center at the Graduate Center, Neuroscience InitiativeCity University of New YorkNew YorkNew YorkUSA
| | | | | | - Barbara S. Slusher
- Department of Neurology, Richard T. Johnson Division of Neuroimmunology and Neurological InfectionsJohns Hopkins University School of MedicineBaltimoreMarylandUSA
- Johns Hopkins Drug DiscoveryJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Norman J. Haughey
- Department of Neurology, Richard T. Johnson Division of Neuroimmunology and Neurological InfectionsJohns Hopkins University School of MedicineBaltimoreMarylandUSA
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14
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Schytte GN, Christensen B, Bregenov I, Sørensen ES. Ras-transformation reduce FAM20C expression and osteopontin phosphorylation. Biosci Rep 2020; 40:BSR20194378. [PMID: 32830861 PMCID: PMC7494989 DOI: 10.1042/bsr20194378] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 07/07/2020] [Accepted: 08/19/2020] [Indexed: 12/30/2022] Open
Abstract
Family with sequence similarity 20, member C (FAM20C) is the main kinase of secreted phosphoproteins, including the multifunctional protein and cytokine, osteopontin (OPN). The phosphorylation of OPN varies greatly among cell types, tissues and species, and the different phospho-isoforms contribute to the multifunctionality of the protein. Expression of OPN is increased in human malignancies, and less phosphorylated isoforms of the protein have been associated with this phenotype. Here, we compared OPN from ras-transformed fibroblasts with that from their non-transformed parental cells, and found that OPN was less phosphorylated after ras-transformation. Furthermore, we demonstrated that expression of FAM20C mRNA was reduced five-fold in ras-transformed fibroblasts compared with non-transformed fibroblasts. Transfection with FAM20C of the ras-transformed fibroblasts restored the FAM20C mRNA expression but the phosphorylation of OPN was not increased proportionally. Likewise, the mRNA level of FAM20C was reduced in the malignant ras-transformed mammary cell line MCF10ACA1a compared with its non-transformed parental cell line MCF10A. These results suggest that expression of the FAM20C kinase is reduced after oncogenic ras-transformation, which potentially affects the phosphorylation of secreted phosphoproteins.
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Affiliation(s)
- Gitte N Schytte
- Department of Molecular Biology and Genetics, Science Park, Aarhus University, Aarhus, Denmark
| | - Brian Christensen
- Department of Molecular Biology and Genetics, Science Park, Aarhus University, Aarhus, Denmark
| | - Ida Bregenov
- Department of Molecular Biology and Genetics, Science Park, Aarhus University, Aarhus, Denmark
| | - Esben S Sørensen
- Department of Molecular Biology and Genetics, Science Park, Aarhus University, Aarhus, Denmark
- Interdisciplinary Nanoscience Center, Aarhus University, Aarhus, Denmark
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15
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Kröber-Boncardo C, Lorenzen S, Brinker C, Clos J. Casein kinase 1.2 over expression restores stress resistance to Leishmania donovani HSP23 null mutants. Sci Rep 2020; 10:15969. [PMID: 32994468 PMCID: PMC7525241 DOI: 10.1038/s41598-020-72724-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 05/20/2020] [Accepted: 09/04/2020] [Indexed: 01/25/2023] Open
Abstract
Leishmania donovani is a trypanosomatidic parasite and causes the lethal kala-azar fever, a neglected tropical disease. The Trypanosomatida are devoid of transcriptional gene regulation and rely on gene copy number variations and translational control for their adaption to changing conditions. To survive at mammalian tissue temperatures, L. donovani relies on the small heat shock protein HSP23, the loss of which renders the parasites stress sensitive and impairs their proliferation. Here, we analysed a spontaneous escape mutant with wild type-like in vitro growth. Further selection of this escape strains resulted in a complete reversion of the phenotype. Whole genome sequencing revealed a correlation between stress tolerance and the massive amplification of a six-gene cluster on chromosome 35, with further analysis showing over expression of the casein kinase 1.2 gene as responsible. In vitro phosphorylation experiments established both HSP23 and the related P23 co-chaperone as substrates and modulators of casein kinase 1.2, providing evidence for another crucial link between chaperones and signal transduction protein kinases in this early branching eukaryote.
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Affiliation(s)
- Constanze Kröber-Boncardo
- Leishmania Group, Bernhard Nocht Institute for Tropical Medicine, Bernhard Nocht St 74, 20359, Hamburg, Germany
| | - Stephan Lorenzen
- Department of Epidemiology, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - Christine Brinker
- Leishmania Group, Bernhard Nocht Institute for Tropical Medicine, Bernhard Nocht St 74, 20359, Hamburg, Germany
| | - Joachim Clos
- Leishmania Group, Bernhard Nocht Institute for Tropical Medicine, Bernhard Nocht St 74, 20359, Hamburg, Germany.
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16
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Spit M, Fenderico N, Jordens I, Radaszkiewicz T, Lindeboom RGH, Bugter JM, Cristobal A, Ootes L, van Osch M, Janssen E, Boonekamp KE, Hanakova K, Potesil D, Zdrahal Z, Boj SF, Medema JP, Bryja V, Koo B, Vermeulen M, Maurice MM. RNF43 truncations trap CK1 to drive niche-independent self-renewal in cancer. EMBO J 2020; 39:e103932. [PMID: 32965059 PMCID: PMC7503102 DOI: 10.15252/embj.2019103932] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [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: 11/11/2019] [Revised: 06/19/2020] [Accepted: 06/22/2020] [Indexed: 12/26/2022] Open
Abstract
Wnt/β-catenin signaling is a primary pathway for stem cell maintenance during tissue renewal and a frequent target for mutations in cancer. Impaired Wnt receptor endocytosis due to loss of the ubiquitin ligase RNF43 gives rise to Wnt-hypersensitive tumors that are susceptible to anti-Wnt-based therapy. Contrary to this paradigm, we identify a class of RNF43 truncating cancer mutations that induce β-catenin-mediated transcription, despite exhibiting retained Wnt receptor downregulation. These mutations interfere with a ubiquitin-independent suppressor role of the RNF43 cytosolic tail that involves Casein kinase 1 (CK1) binding and phosphorylation. Mechanistically, truncated RNF43 variants trap CK1 at the plasma membrane, thereby preventing β-catenin turnover and propelling ligand-independent target gene transcription. Gene editing of human colon stem cells shows that RNF43 truncations cooperate with p53 loss to drive a niche-independent program for self-renewal and proliferation. Moreover, these RNF43 variants confer decreased sensitivity to anti-Wnt-based therapy. Our data demonstrate the relevance of studying patient-derived mutations for understanding disease mechanisms and improved applications of precision medicine.
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Affiliation(s)
- Maureen Spit
- Department of Cell Biology and Oncode InstituteCenter for Molecular MedicineUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Nicola Fenderico
- Department of Cell Biology and Oncode InstituteCenter for Molecular MedicineUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Ingrid Jordens
- Department of Cell Biology and Oncode InstituteCenter for Molecular MedicineUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Tomasz Radaszkiewicz
- Department of Experimental BiologyFaculty of ScienceMasaryk UniversityBrnoCzech Republic
| | - Rik GH Lindeboom
- Department of Molecular Biology and Oncode InstituteFaculty of ScienceRadboud Institute for Molecular Life SciencesRadboud University NijmegenNijmegenThe Netherlands
| | - Jeroen M Bugter
- Department of Cell Biology and Oncode InstituteCenter for Molecular MedicineUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Alba Cristobal
- Department of Cell Biology and Oncode InstituteCenter for Molecular MedicineUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Lars Ootes
- Department of Cell Biology and Oncode InstituteCenter for Molecular MedicineUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Max van Osch
- Department of Cell Biology and Oncode InstituteCenter for Molecular MedicineUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Eline Janssen
- Department of Cell Biology and Oncode InstituteCenter for Molecular MedicineUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Kim E Boonekamp
- Department of Cell Biology and Oncode InstituteCenter for Molecular MedicineUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Katerina Hanakova
- Central European Institute of TechnologyMasaryk UniversityBrnoCzech Republic
| | - David Potesil
- Central European Institute of TechnologyMasaryk UniversityBrnoCzech Republic
| | - Zbynek Zdrahal
- Central European Institute of TechnologyMasaryk UniversityBrnoCzech Republic
| | - Sylvia F Boj
- Hubrecht Organoid TechnologyUtrechtThe Netherlands
| | - Jan Paul Medema
- Laboratory for Experimental Oncology and Radiobiology and Oncode InstituteCenter for Experimental and Molecular MedicineAmsterdam UMCCancer Center AmsterdamUniversity of AmsterdamAmsterdamThe Netherlands
| | - Vitezslav Bryja
- Department of Experimental BiologyFaculty of ScienceMasaryk UniversityBrnoCzech Republic
| | - Bon‐Kyoung Koo
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA)Vienna BioCenter (VBC)ViennaAustria
| | - Michiel Vermeulen
- Department of Molecular Biology and Oncode InstituteFaculty of ScienceRadboud Institute for Molecular Life SciencesRadboud University NijmegenNijmegenThe Netherlands
| | - Madelon M Maurice
- Department of Cell Biology and Oncode InstituteCenter for Molecular MedicineUniversity Medical Center UtrechtUtrechtThe Netherlands
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17
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Gao Q, Yan T, Zhang ZJ, Liu SY, Fang XD, Gao DM, Yang YZ, Xu WY, Qiao JH, Cao Q, Ding ZH, Wang Y, Yu J, Wang XB. Casein Kinase 1 Regulates Cytorhabdovirus Replication and Transcription by Phosphorylating a Phosphoprotein Serine-Rich Motif. Plant Cell 2020; 32:2878-2897. [PMID: 32641349 PMCID: PMC7474278 DOI: 10.1105/tpc.20.00369] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/24/2020] [Accepted: 07/07/2020] [Indexed: 05/04/2023]
Abstract
Casein kinase 1 (CK1) family members are conserved Ser/Thr protein kinases that regulate important developmental processes in all eukaryotic organisms. However, the functions of CK1 in plant immunity remain largely unknown. Barley yellow striate mosaic virus (BYSMV), a plant cytorhabdovirus, infects cereal crops and is obligately transmitted by the small brown planthopper (SBPH; Laodelphax striatellus). The BYSMV phosphoprotein (P) exists as two forms with different mobilities corresponding to 42 kD (P42) and 44 kD (P44) in SDS-PAGE gels. Mass spectrometric analyses revealed a highly phosphorylated serine-rich (SR) motif at the C-terminal intrinsically disordered region of the P protein. The Ala-substitution mutant (PS5A) in the SR motif stimulated virus replication, whereas the phosphorylation-mimic mutant (PS5D) facilitated virus transcription. Furthermore, PS5A and PS5D associated preferentially with nucleocapsid protein-RNA templates and the large polymerase protein to provide optimal replication and transcription complexes, respectively. Biochemistry assays demonstrated that plant and insect CK1 protein kinases could phosphorylate the SR motif and induce conformational changes from P42 to P44. Moreover, overexpression of CK1 or a dominant-negative mutant impaired the balance between P42 and P44, thereby compromising virus infections. Our results demonstrate that BYSMV recruits the conserved CK1 kinases to achieve its cross-kingdom infection in host plants and insect vectors.
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Affiliation(s)
- Qiang Gao
- State Key Laboratory of Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Teng Yan
- State Key Laboratory of Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Zhen-Jia Zhang
- State Key Laboratory of Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Song-Yu Liu
- State Key Laboratory of Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Xiao-Dong Fang
- State Key Laboratory of Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Dong-Min Gao
- State Key Laboratory of Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yi-Zhou Yang
- State Key Laboratory of Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Wen-Ya Xu
- State Key Laboratory of Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Ji-Hui Qiao
- State Key Laboratory of Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Qing Cao
- State Key Laboratory of Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Zhi-Hang Ding
- State Key Laboratory of Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Ying Wang
- College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Jialin Yu
- State Key Laboratory of Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Xian-Bing Wang
- State Key Laboratory of Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
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18
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Manandhar SP, Siddiqah IM, Cocca SM, Gharakhanian E. A kinase cascade on the yeast lysosomal vacuole regulates its membrane dynamics: conserved kinase Env7 is phosphorylated by casein kinase Yck3. J Biol Chem 2020; 295:12262-12278. [PMID: 32647006 PMCID: PMC7443493 DOI: 10.1074/jbc.ra119.012346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 06/02/2020] [Indexed: 01/15/2023] Open
Abstract
Membrane fusion/fission is a highly dynamic and conserved process that responds to intra- and extracellular signals. Whereas the molecular machineries involved in membrane fusion/fission have been dissected, regulation of membrane dynamics remains poorly understood. The lysosomal vacuole of budding yeast (Saccharomyces cerevisiae) has served as a seminal model in studies of membrane dynamics. We have previously established that yeast ENV7 encodes an ortholog of STK16-related kinases that localizes to the vacuolar membrane and downregulates vacuolar membrane fusion. Additionally, we have previously reported that Env7 phosphorylation in vivo depends on YCK3, a gene that encodes a vacuolar membrane casein kinase I (CKI) homolog that nonredundantly functions in fusion regulation. Here, we report that Env7 physically interacts with and is directly phosphorylated by Yck3. We also establish that Env7 vacuole fusion/fission regulation and vacuolar localization are mediated through its Yck3-dependent phosphorylation. Through extensive site-directed mutagenesis, we map phosphorylation to the Env7 C terminus and confirm that Ser-331 is a primary and preferred phosphorylation site. Phospho-deficient Env7 mutants were defective in negative regulation of membrane fusion, increasing the number of prominent vacuoles, whereas a phosphomimetic substitution at Ser-331 increased the number of fragmented vacuoles. Bioinformatics approaches confirmed that Env7 Ser-331 is within a motif that is highly conserved in STK16-related kinases and that it also anchors an SXXS CKI phosphorylation motif (328SRFS331). This study represents the first report on the regulatory mechanism of an STK16-related kinase. It also points to regulation of vacuolar membrane dynamics via a novel Yck3-Env7 kinase cascade.
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Affiliation(s)
- Surya P Manandhar
- Department of Biological Sciences, California State University at Long Beach, Long Beach, California, USA
| | - Ikha M Siddiqah
- Department of Biological Sciences, California State University at Long Beach, Long Beach, California, USA
| | - Stephanie M Cocca
- Department of Biological Sciences, California State University at Long Beach, Long Beach, California, USA
| | - Editte Gharakhanian
- Department of Biological Sciences, California State University at Long Beach, Long Beach, California, USA.
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19
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Eltan M, Alavanda C, Yavas Abali Z, Ergenekon P, Yalındag Ozturk N, Sakar M, Dagcinar A, Kirkgoz T, Kaygusuz SB, Gokdemir Y, Elcioglu HN, Guran T, Bereket A, Ata P, Turan S. A Rare Cause of Hypophosphatemia: Raine Syndrome Changing Clinical Features with Age. Calcif Tissue Int 2020; 107:96-103. [PMID: 32337609 PMCID: PMC7222149 DOI: 10.1007/s00223-020-00694-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 04/11/2020] [Indexed: 11/29/2022]
Abstract
Raine Syndrome (RS) is caused by biallelic loss-of-function mutations in FAM20C gene and characterized by hypophosphatemia, typical facial and skeletal features. Subperiosteal bone formation and generalized osteosclerosis are the most common radiological findings. Here we present a new case with RS. A 9-month-old male patient on a home-type ventilator was referred for hypophosphatemia. He was born with a weight of 3800 g to non-consanguineous parents. Prenatal ultrasound had demonstrated nasal bone agenesis. A large anterior fontanel, frontal bossing, exophthalmos, hypoplastic nose, high arched palate, low set ears, triangular mouth, and corneal opacification were detected on physical examination. Serial skeletal X-rays revealed diffuse osteosclerosis at birth which was gradually decreased by the age of 5 months with subperiosteal undermineralized bone formation and medullary space of long bone could be distinguishable with bone-within-a-bone appearance. At 9 months of age, hand X-ray revealed cupping of the ulna with loose radial bone margin with minimal fraying and osteopenia. Cranial computed tomography scan showed bilateral periventricular calcification and hydrocephalus in progress. The clinical, laboratory, and radiological examinations were consistent with RS. Molecular analyses revealed a compound heterozygous mutation in FAM20C gene (a known pathogenic mutation, c.1645C > T, p.Arg549Trp; and a novel c.863 + 5 G > C variant). The patient died due to respiratory failure at 17 months of age. This case allowed us to demonstrate natural progression of skeletal features in RS. Furthermore, we have described a novel FAM20C variant causing RS. Previous literature on RS is also reviewed.
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Affiliation(s)
- Mehmet Eltan
- Department of Pediatric Endocrinology and Diabetes, Marmara University School of Medicine, Istanbul, Turkey
| | - Ceren Alavanda
- Department of Medical Genetics, Marmara University School of Medicine, Istanbul, Turkey
| | - Zehra Yavas Abali
- Department of Pediatric Endocrinology and Diabetes, Marmara University School of Medicine, Istanbul, Turkey
| | - Pinar Ergenekon
- Department of Pediatric Chest Disease, Marmara University School of Medicine, Istanbul, Turkey
| | - Nilufer Yalındag Ozturk
- Department of Pediatric Intensive Care Unit, Marmara University School of Medicine, Istanbul, Turkey
| | - Mustafa Sakar
- Department of Pediatric Neurosurgery, Marmara University School of Medicine, Istanbul, Turkey
| | - Adnan Dagcinar
- Department of Pediatric Neurosurgery, Marmara University School of Medicine, Istanbul, Turkey
| | - Tarik Kirkgoz
- Department of Pediatric Endocrinology and Diabetes, Marmara University School of Medicine, Istanbul, Turkey
| | - Sare Betul Kaygusuz
- Department of Pediatric Endocrinology and Diabetes, Marmara University School of Medicine, Istanbul, Turkey
| | - Yasemin Gokdemir
- Department of Pediatric Chest Disease, Marmara University School of Medicine, Istanbul, Turkey
| | - Huriye Nursel Elcioglu
- Department of Pediatric Genetics, Marmara University School of Medicine, Istanbul, Turkey
| | - Tulay Guran
- Department of Pediatric Endocrinology and Diabetes, Marmara University School of Medicine, Istanbul, Turkey
| | - Abdullah Bereket
- Department of Pediatric Endocrinology and Diabetes, Marmara University School of Medicine, Istanbul, Turkey
| | - Pinar Ata
- Department of Medical Genetics, Marmara University School of Medicine, Istanbul, Turkey
| | - Serap Turan
- Department of Pediatric Endocrinology and Diabetes, Marmara University School of Medicine, Istanbul, Turkey.
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20
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Hecht TKH, Blank B, Steger M, Lopez V, Beck G, Ramazanov B, Mann M, Tagliabracci V, von Blume J. Fam20C regulates protein secretion by Cab45 phosphorylation. J Cell Biol 2020; 219:e201910089. [PMID: 32422653 PMCID: PMC7265331 DOI: 10.1083/jcb.201910089] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 03/06/2020] [Accepted: 04/02/2020] [Indexed: 12/18/2022] Open
Abstract
The TGN is a key compartment for the sorting and secretion of newly synthesized proteins. At the TGN, soluble proteins are sorted based on the instructions carried in their oligosaccharide backbones or by a Ca2+-mediated process that involves the cargo-sorting protein Cab45. Here, we show that Cab45 is phosphorylated by the Golgi-specific protein kinase Fam20C. Mimicking of phosphorylation translocates Cab45 into TGN-derived vesicles, which goes along with an increased export of LyzC, a Cab45 client. Our findings demonstrate that Fam20C plays a key role in the export of Cab45 clients by fine-tuning Cab45 oligomerization and thus impacts Cab45 retention in the TGN.
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Affiliation(s)
- Tobias Karl-Heinz Hecht
- Department of Cell Biology, Yale University School of Medicine, New Haven, CT
- Max Planck Institute of Biochemistry, Department of Molecular Medicine, Martinsried, Germany
| | - Birgit Blank
- Department of Cell Biology, Yale University School of Medicine, New Haven, CT
- Max Planck Institute of Biochemistry, Department of Molecular Medicine, Martinsried, Germany
| | - Martin Steger
- Max Planck Institute of Biochemistry, Department of Molecular Medicine, Martinsried, Germany
| | - Victor Lopez
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX
| | - Gisela Beck
- Max Planck Institute of Biochemistry, Department of Molecular Medicine, Martinsried, Germany
| | - Bulat Ramazanov
- Department of Cell Biology, Yale University School of Medicine, New Haven, CT
| | - Matthias Mann
- Max Planck Institute of Biochemistry, Department of Molecular Medicine, Martinsried, Germany
| | - Vincent Tagliabracci
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX
| | - Julia von Blume
- Department of Cell Biology, Yale University School of Medicine, New Haven, CT
- Max Planck Institute of Biochemistry, Department of Molecular Medicine, Martinsried, Germany
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21
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Bhondeley M, Liu Z. Mitochondrial Biogenesis Is Positively Regulated by Casein Kinase I Hrr25 Through Phosphorylation of Puf3 in Saccharomyces cerevisiae. Genetics 2020; 215:463-482. [PMID: 32317286 PMCID: PMC7268985 DOI: 10.1534/genetics.120.303191] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 04/20/2020] [Indexed: 11/18/2022] Open
Abstract
Mitochondrial biogenesis requires coordinated expression of genes encoding mitochondrial proteins, which in Saccharomyces cerevisiae is achieved in part via post-transcriptional control by the Pumilio RNA-binding domain protein Puf3 Puf3 binds to the 3'-UTR of many messenger RNAs (mRNAs) that encode mitochondrial proteins, regulating their turnover, translation, and/or mitochondrial targeting. Puf3 hyperphosphorylation correlates with increased mitochondrial biogenesis; however, the kinase responsible for Puf3 phosphorylation is unclear. Here, we show that the casein kinase I protein Hrr25 negatively regulates Puf3 by mediating its phosphorylation. An hrr25 mutation results in reduced phosphorylation of Puf3 in vivo and a puf3 deletion mutation reverses growth defects of hrr25 mutant cells grown on medium with a nonfermentable carbon source. We show that Hrr25 directly phosphorylates Puf3, and that the interaction between Puf3 and Hrr25 is mediated through the N-terminal domain of Puf3 and the kinase domain of Hrr25 We further found that an hrr25 mutation reduces GFP expression from GFP reporter constructs carrying the 3'-UTR of Puf3 targets. Downregulation of GFP expression due to an hrr25 mutation can be reversed either by puf3Δ or by mutations to the Puf3-binding sites in the 3'-UTR of the GFP reporter constructs. Together, our data indicate that Hrr25 is a positive regulator of mitochondrial biogenesis by phosphorylating Puf3 and inhibiting its function in downregulating target mRNAs encoding mitochondrial proteins.
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Affiliation(s)
- Manika Bhondeley
- Department of Biological Sciences, University of New Orleans, Louisiana 70148
| | - Zhengchang Liu
- Department of Biological Sciences, University of New Orleans, Louisiana 70148
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22
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Kang J, Cui H, Jia S, Liu W, Yu R, Wu Z, Wang Z. Arabidopsis thaliana MLK3, a Plant-specific Casein Kinase 1, Negatively Regulates Flowering and Phosphorylates Histone H3 in Vitro. Genes (Basel) 2020; 11:genes11030345. [PMID: 32214028 PMCID: PMC7141126 DOI: 10.3390/genes11030345] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 01/22/2020] [Revised: 03/10/2020] [Accepted: 03/16/2020] [Indexed: 12/21/2022] Open
Abstract
Arabidopsis thalianaMUT9-LIKE KINASES (MLKs), a family of the plant-specific casein kinase 1 (CK1), have been implicated collectively in multiple biological processes including flowering. Three of the four MLKs (MLK1/2/4) have been characterized, however, little is known about MLK3, the most divergent member of MLKs. Here, we demonstrated that disruption of MLK3 transcript in mlk3 caused early flowering with retarded leaf growth under long-day conditions. In vitro kinase assay showed the nuclear protein MLK3 phosphorylated histone 3 at threonine 3 (H3T3) and mutation of a conserved residue (K146R) abolished the catalytic activity. Ectopic expression of MLK3 but not MLK3(K146R) rescued the morphological defects of mlk3, indicating that an intact MLK3 is critical for maintaining proper flowering time. Transcriptomic analysis revealed that the floral repressor FLOWERING LOCUS C (FLC) was down-regulated significantly in mlk3, suggesting that MLK3 negatively regulates flowering. Hence, MLK3 plays a role in repressing the transition from vegetative to reproductive phase in A. thaliana. This study sheds light on the delicate control of flowering time by A. thaliana CK1 specific to the plant kingdom.
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Affiliation(s)
- Junmei Kang
- Institute of Animal Science, The Chinese Academy of Agricultural Sciences, Beijing 10019, China; (J.K.); (W.L.)
| | - Huiting Cui
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China; (H.C.); (S.J.)
| | - Shangang Jia
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China; (H.C.); (S.J.)
| | - Wenwen Liu
- Institute of Animal Science, The Chinese Academy of Agricultural Sciences, Beijing 10019, China; (J.K.); (W.L.)
| | - Renjie Yu
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China;
| | - Zhihai Wu
- College of Agronomy, Jilin Agricultural University, Changchun 130118, China;
| | - Zhen Wang
- Institute of Animal Science, The Chinese Academy of Agricultural Sciences, Beijing 10019, China; (J.K.); (W.L.)
- Correspondence: ; Tel.: +10-86-6281-6357
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23
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Hernández-Zavala A, Cortés-Camacho F, Palma-Lara I, Godínez-Aguilar R, Espinosa AM, Pérez-Durán J, Villanueva-Ocampo P, Ugarte-Briones C, Serrano-Bello CA, Sánchez-Santiago PJ, Bonilla-Delgado J, Yáñez-López MA, Victoria-Acosta G, López-Ornelas A, García Alonso-Themann P, Moreno J, Palacios-Reyes C. Two Novel FAM20C Variants in A Family with Raine Syndrome. Genes (Basel) 2020; 11:genes11020222. [PMID: 32093234 PMCID: PMC7073523 DOI: 10.3390/genes11020222] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 11/29/2019] [Revised: 01/30/2020] [Accepted: 02/14/2020] [Indexed: 12/14/2022] Open
Abstract
Two siblings from a Mexican family who carried lethal Raine syndrome are presented. A newborn term male (case 1) and his 21 gestational week brother (case 2), with a similar osteosclerotic pattern: generalized osteosclerosis, which is more evident in facial bones and cranial base. Prenatal findings at 21 weeks and histopathological features for case 2 are described. A novel combination of biallelic FAM20C pathogenic variants were detected, a maternal cytosine duplication at position 456 and a paternal deletion of a cytosine in position 474 in exon 1, which change the reading frame with a premature termination at codon 207 and 185 respectively. These changes are in concordance with a negative detection of the protein in liver and kidney as shown in case 2. Necropsy showed absence of pancreatic Langerhans Islets, which are reported here for the first time. Corpus callosum absence is added to the few reported cases of brain defects in Raine syndrome. This report shows two new FAM20C variants not described previously, and negative protein detection in the liver and the kidney. We highlight that lethal Raine syndrome is well defined as early as 21 weeks, including mineralization defects and craniofacial features. Pancreas and brain defects found here in FAM20C deficiency extend the functional spectrum of this protein to previously unknown organs.
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Affiliation(s)
- Araceli Hernández-Zavala
- Laboratory of Cellular and Molecular Morphology, Section of Postgraduate Studies and Research, Escuela Superior de Medicina, Instituto Politécnico Nacional, Salvador Díaz Mirón esq. Plan de San Luis S/N, Miguel Hidalgo, Casco de Santo Tomas, Mexico City 11340, Mexico; (A.H.-Z.); (F.C.-C.); (I.P.-L.)
| | - Fernando Cortés-Camacho
- Laboratory of Cellular and Molecular Morphology, Section of Postgraduate Studies and Research, Escuela Superior de Medicina, Instituto Politécnico Nacional, Salvador Díaz Mirón esq. Plan de San Luis S/N, Miguel Hidalgo, Casco de Santo Tomas, Mexico City 11340, Mexico; (A.H.-Z.); (F.C.-C.); (I.P.-L.)
- Direction and Division of Research, Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Magdalena de las Salinas, Gustavo A. Madero, Mexico City 07760, Mexico; (R.G.-A.); (J.B.-D.); (G.V.-A.); (A.L.-O.); (J.M.)
| | - Icela Palma-Lara
- Laboratory of Cellular and Molecular Morphology, Section of Postgraduate Studies and Research, Escuela Superior de Medicina, Instituto Politécnico Nacional, Salvador Díaz Mirón esq. Plan de San Luis S/N, Miguel Hidalgo, Casco de Santo Tomas, Mexico City 11340, Mexico; (A.H.-Z.); (F.C.-C.); (I.P.-L.)
| | - Ricardo Godínez-Aguilar
- Direction and Division of Research, Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Magdalena de las Salinas, Gustavo A. Madero, Mexico City 07760, Mexico; (R.G.-A.); (J.B.-D.); (G.V.-A.); (A.L.-O.); (J.M.)
| | - Ana María Espinosa
- Service of Clinical Pharmacology, Hospital General de México, Dr. Balmis 148, Doctores, Cuauhtémoc, Mexico City 06720, Mexico;
| | - Javier Pérez-Durán
- National Institute of Perinatology, Calle Montes Urales 800, Lomas - Virreyes, Lomas de Chapultepec IV Section, Miguel Hidalgo, Mexico City 11000, Mexico; (J.P.-D.); (P.G.A.-T.)
| | - Patricia Villanueva-Ocampo
- Deparment of Ginecology, Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Magdalena de las Salinas, Gustavo A. Madero, Mexico City 07760, Mexico;
| | - Carlos Ugarte-Briones
- Department of Pathology, Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Magdalena de las Salinas, Gustavo A. Madero, Mexico City 07760, Mexico; (C.U.-B.); (C.A.S.-B.); (P.J.S.-S.)
| | - Carlos Alberto Serrano-Bello
- Department of Pathology, Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Magdalena de las Salinas, Gustavo A. Madero, Mexico City 07760, Mexico; (C.U.-B.); (C.A.S.-B.); (P.J.S.-S.)
| | - Paula Jesús Sánchez-Santiago
- Department of Pathology, Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Magdalena de las Salinas, Gustavo A. Madero, Mexico City 07760, Mexico; (C.U.-B.); (C.A.S.-B.); (P.J.S.-S.)
| | - José Bonilla-Delgado
- Direction and Division of Research, Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Magdalena de las Salinas, Gustavo A. Madero, Mexico City 07760, Mexico; (R.G.-A.); (J.B.-D.); (G.V.-A.); (A.L.-O.); (J.M.)
| | - Marco Antonio Yáñez-López
- Department of Radiology & Imagenology, Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Magdalena de las Salinas, Gustavo A. Madero, Mexico City 07760, Mexico;
| | - Georgina Victoria-Acosta
- Direction and Division of Research, Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Magdalena de las Salinas, Gustavo A. Madero, Mexico City 07760, Mexico; (R.G.-A.); (J.B.-D.); (G.V.-A.); (A.L.-O.); (J.M.)
| | - Adolfo López-Ornelas
- Direction and Division of Research, Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Magdalena de las Salinas, Gustavo A. Madero, Mexico City 07760, Mexico; (R.G.-A.); (J.B.-D.); (G.V.-A.); (A.L.-O.); (J.M.)
| | - Patricia García Alonso-Themann
- National Institute of Perinatology, Calle Montes Urales 800, Lomas - Virreyes, Lomas de Chapultepec IV Section, Miguel Hidalgo, Mexico City 11000, Mexico; (J.P.-D.); (P.G.A.-T.)
| | - José Moreno
- Direction and Division of Research, Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Magdalena de las Salinas, Gustavo A. Madero, Mexico City 07760, Mexico; (R.G.-A.); (J.B.-D.); (G.V.-A.); (A.L.-O.); (J.M.)
| | - Carmen Palacios-Reyes
- Direction and Division of Research, Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Magdalena de las Salinas, Gustavo A. Madero, Mexico City 07760, Mexico; (R.G.-A.); (J.B.-D.); (G.V.-A.); (A.L.-O.); (J.M.)
- Correspondence:
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24
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Philpott JM, Narasimamurthy R, Ricci CG, Freeberg AM, Hunt SR, Yee LE, Pelofsky RS, Tripathi S, Virshup DM, Partch CL. Casein kinase 1 dynamics underlie substrate selectivity and the PER2 circadian phosphoswitch. eLife 2020; 9:e52343. [PMID: 32043967 PMCID: PMC7012598 DOI: 10.7554/elife.52343] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [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: 10/03/2019] [Accepted: 01/25/2020] [Indexed: 12/27/2022] Open
Abstract
Post-translational control of PERIOD stability by Casein Kinase 1δ and ε (CK1) plays a key regulatory role in metazoan circadian rhythms. Despite the deep evolutionary conservation of CK1 in eukaryotes, little is known about its regulation and the factors that influence substrate selectivity on functionally antagonistic sites in PERIOD that directly control circadian period. Here we describe a molecular switch involving a highly conserved anion binding site in CK1. This switch controls conformation of the kinase activation loop and determines which sites on mammalian PER2 are preferentially phosphorylated, thereby directly regulating PER2 stability. Integrated experimental and computational studies shed light on the allosteric linkage between two anion binding sites that dynamically regulate kinase activity. We show that period-altering kinase mutations from humans to Drosophila differentially modulate this activation loop switch to elicit predictable changes in PER2 stability, providing a foundation to understand and further manipulate CK1 regulation of circadian rhythms.
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Affiliation(s)
- Jonathan M Philpott
- Department of Chemistry and BiochemistryUniversity of California Santa CruzSanta CruzUnited States
| | | | - Clarisse G Ricci
- Department of Chemistry and BiochemistryUniversity of California San DiegoSan DiegoUnited States
| | - Alfred M Freeberg
- Department of Chemistry and BiochemistryUniversity of California Santa CruzSanta CruzUnited States
| | - Sabrina R Hunt
- Department of Chemistry and BiochemistryUniversity of California Santa CruzSanta CruzUnited States
| | - Lauren E Yee
- Department of Chemistry and BiochemistryUniversity of California Santa CruzSanta CruzUnited States
| | - Rebecca S Pelofsky
- Department of Chemistry and BiochemistryUniversity of California Santa CruzSanta CruzUnited States
| | - Sarvind Tripathi
- Department of Chemistry and BiochemistryUniversity of California Santa CruzSanta CruzUnited States
| | - David M Virshup
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical SchoolSingaporeSingapore
- Department of PediatricsDuke University Medical CenterDurhamUnited States
| | - Carrie L Partch
- Department of Chemistry and BiochemistryUniversity of California Santa CruzSanta CruzUnited States
- Center for Circadian BiologyUniversity of California San DiegoSan DiegoUnited States
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Mamedova E, Dimitrova D, Przhiyalkovskaya E, Buryakina S, Vasilyev E, Tiulpakov A, Belaya Z. Non-lethal Raine Syndrome in a Middle-Aged Woman Caused by a Novel FAM20C Mutation. Calcif Tissue Int 2019; 105:567-572. [PMID: 31471673 DOI: 10.1007/s00223-019-00599-w] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 08/16/2019] [Indexed: 12/21/2022]
Abstract
Raine syndrome is a rare hereditary disease caused by mutations in the FAM20C gene. Only 18 non-lethal cases have been reported, the majority of them being children and young adults aged up to 30. Due to the rarity of the disease, genotype-phenotype correlations are not available and patient life expectancy is unknown, thus making descriptions of each novel case of particular importance. In this article, we describe a case of an Armenian woman, living in Russia, who was followed-up from age 36 to 39, presenting with pain in the extremities, osteosclerosis with periosteal bone formation, multiple calcifications in solid organs, midface hypoplasia, exophthalmos, amelogenesis imperfecta, shortening of distal phalanges, pectus excavatum, and hypophosphatemia due to renal phosphate wasting. Whole exome sequencing was performed on NextSeq 550 (Illumina, USA) and compound heterozygous variants were identified in the FAM20C gene (reference sequence NM_020223): a frameshift insertion c.1107_1108insTACTG (p.Tyr369fs) and a missense substitution c.1375C > G (p.Arg459Gly). This is the first reported case of a middle-aged patient presenting classical symptoms of Raine syndrome caused by novel compound heterozygous mutations in the conserved C-terminal domain of FAM20C gene.
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Affiliation(s)
- Elizaveta Mamedova
- Department of Neuroendocrinology and Bone Diseases, Endocrinology Research Centre, Ulitsa Dmitriya Ulianova, 11, Moscow, 117036, Russian Federation.
| | - Diana Dimitrova
- Department of Neuroendocrinology and Bone Diseases, Endocrinology Research Centre, Ulitsa Dmitriya Ulianova, 11, Moscow, 117036, Russian Federation
| | - Elena Przhiyalkovskaya
- Department of Neuroendocrinology and Bone Diseases, Endocrinology Research Centre, Ulitsa Dmitriya Ulianova, 11, Moscow, 117036, Russian Federation
| | - Svetlana Buryakina
- Department of Radiology, Endocrinology Research Centre, Ulitsa Dmitriya Ulianova, 11, Moscow, 117036, Russian Federation
| | - Evgeny Vasilyev
- Department and Laboratory of Inherited Endocrine Disorders, Endocrinology Research Centre, Ulitsa Dmitriya Ulianova, 11, Moscow, 117036, Russian Federation
| | - Anatoly Tiulpakov
- Department and Laboratory of Inherited Endocrine Disorders, Endocrinology Research Centre, Ulitsa Dmitriya Ulianova, 11, Moscow, 117036, Russian Federation
| | - Zhanna Belaya
- Department of Neuroendocrinology and Bone Diseases, Endocrinology Research Centre, Ulitsa Dmitriya Ulianova, 11, Moscow, 117036, Russian Federation
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26
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Ono A, Sato A, Fujimoto KJ, Matsuo H, Yanai T, Kinoshita T, Nakamichi N. 3,4-Dibromo-7-Azaindole Modulates Arabidopsis Circadian Clock by Inhibiting Casein Kinase 1 Activity. Plant Cell Physiol 2019; 60:2360-2368. [PMID: 31529098 PMCID: PMC6839374 DOI: 10.1093/pcp/pcz183] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 09/10/2019] [Indexed: 05/05/2023]
Abstract
The circadian clock is a timekeeping system for regulation of numerous biological daily rhythms. One characteristic of the circadian clock is that period length remains relatively constant in spite of environmental fluctuations, such as temperature change. Here, using the curated collection of in-house small molecule chemical library (ITbM chemical library), we show that small molecule 3,4-dibromo-7-azaindole (B-AZ) lengthened the circadian period of Arabidopsis thaliana (Arabidopsis). B-AZ has not previously been reported to have any biological and biochemical activities. Target identification can elucidate the mode of action of small molecules, but we were unable to make a molecular probe of B-AZ for target identification. Instead, we performed other analysis, gene expression profiling that potentially reveals mode of action of molecules. Short-term treatment of B-AZ decreased the expression of four dawn- and morning-phased clock-associated genes, CIRCADIAN CLOCK-ASSOCIATED 1 (CCA1), LATE ELONGATED HYPOCOTYL (LHY), PSEUDO-RESPONSE REGULATOR 9 (PRR9) and PRR7. Consistently, amounts of PRR5 and TIMING OF CAB EXPRESSION 1 (TOC1) proteins, transcriptional repressors of CCA1, LHY, PRR9 and PRR7 were increased upon B-AZ treatment. B-AZ inhibited Casein Kinase 1 family (CK1) that phosphorylates PRR5 and TOC1 for targeted degradation. A docking study and molecular dynamics simulation suggested that B-AZ interacts with the ATP-binding pocket of human CK1 delta, whose amino acid sequences are highly similar to those of Arabidopsis CK1. B-AZ-induced period-lengthening effect was attenuated in prr5 toc1 mutants. Collectively, this study provides a novel and simple structure CK1 inhibitor that modulates circadian clock via accumulation of PRR5 and TOC1.
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Affiliation(s)
- Azusa Ono
- Division of Biological Science, Graduate School of Science, Nagoya University, Furocho, Chikusa, Nagoya, Japan
| | - Ayato Sato
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furocho, Chikusa, Nagoya, Japan
| | - Kazuhiro J Fujimoto
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furocho, Chikusa, Nagoya, Japan
- Department of Chemistry, Graduate School of Science, Nagoya University, Furocho, Chikusa, Nagoya, Japan
| | - Hiromi Matsuo
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furocho, Chikusa, Nagoya, Japan
| | - Takeshi Yanai
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furocho, Chikusa, Nagoya, Japan
- Department of Chemistry, Graduate School of Science, Nagoya University, Furocho, Chikusa, Nagoya, Japan
| | - Toshinori Kinoshita
- Division of Biological Science, Graduate School of Science, Nagoya University, Furocho, Chikusa, Nagoya, Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furocho, Chikusa, Nagoya, Japan
| | - Norihito Nakamichi
- Division of Biological Science, Graduate School of Science, Nagoya University, Furocho, Chikusa, Nagoya, Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furocho, Chikusa, Nagoya, Japan
- * Corresponding author: E-mail, ; Fax, +81-789-4778
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27
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Rolvien T, Kornak U, Schinke T, Amling M, Oheim R. A novel FAM20C mutation causing hypophosphatemic osteomalacia with osteosclerosis (mild Raine syndrome) in an elderly man with spontaneous osteonecrosis of the knee. Osteoporos Int 2019; 30:685-689. [PMID: 30151622 DOI: 10.1007/s00198-018-4667-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 08/12/2018] [Indexed: 12/11/2022]
Abstract
Raine syndrome is characterized by FGF23-mediated hypophosphatemic osteomalacia with osteosclerosis caused by mutations in the FAM20C gene. We report a case of a 72-year-old man who presented with rapid progressive spontaneous osteonecrosis of the knee (SONK). A full osteologic assessment including dual energy X-ray absorptiometry (DXA), high-resolution peripheral quantitative computed tomography (HR-pQCT), and serum analyses revealed a high bone mass in the lumbar spine and hip (DXA T-score + 7.5 and + 4.7/+4.2) with increased bone microstructural parameters in the distal radius and tibia (BV/TV 127%, 140% of the age-matched mean, respectively), as well as a low bone turnover state. Phosphate levels were low due to renal phosphate wasting and high FGF23 levels (126.5 pg/ml, reference range 23.2-95.4 pg/ml). Using gene panel sequencing, we identified a novel FAM20C heterozygous missense mutation in combination with a homozygous duplication that potentially alters splicing. Taken together, this is the first case of mild Raine syndrome with spontaneous osteonecrosis of the knee, phosphate wasting, and a pronounced trabecular high bone mass phenotype.
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Affiliation(s)
- T Rolvien
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestr. 59, 22529, Hamburg, Germany
- Department of Orthopedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- National Bone Board, Martin Zeitz Center for Rare Diseases, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - U Kornak
- National Bone Board, Martin Zeitz Center for Rare Diseases, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Institute of Medical Genetics and Human Genetics, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Berlin-Brandenburg School for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Berlin, Germany
- FG Development and Disease, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - T Schinke
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestr. 59, 22529, Hamburg, Germany
- National Bone Board, Martin Zeitz Center for Rare Diseases, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - M Amling
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestr. 59, 22529, Hamburg, Germany
- National Bone Board, Martin Zeitz Center for Rare Diseases, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - R Oheim
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestr. 59, 22529, Hamburg, Germany.
- National Bone Board, Martin Zeitz Center for Rare Diseases, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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28
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Venkatesan A, Fan JY, Bouyain S, Price JL. The Circadian tau Mutation in Casein Kinase 1 Is Part of a Larger Domain That Can Be Mutated to Shorten Circadian Period. Int J Mol Sci 2019; 20:E813. [PMID: 30769795 PMCID: PMC6412653 DOI: 10.3390/ijms20040813] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 01/31/2019] [Revised: 01/31/2019] [Accepted: 02/11/2019] [Indexed: 01/21/2023] Open
Abstract
Drosophila Double-time (DBT) phosphorylates the circadian protein Period (PER). The period-altering mutation tau, identified in hamster casein kinase I (CKIε) and created in Drosophila DBT, has been shown to shorten the circadian period in flies, as it does in hamsters. Since CKI often phosphorylates downstream of previously phosphorylated residues and the tau amino acid binds a negatively charged ion in X-ray crystal structures, this amino acid has been suggested to contribute to a phosphate recognition site for the substrate. Alternatively, the tau amino acid may affect a nuclear localization signal (NLS) with which it interacts. We mutated the residues that were close to or part of the phosphate recognition site or NLS. Flies expressing DBT with mutations of amino acids close to or part of either of these motifs produced a shortening of period, suggesting that a domain, including the phosphate recognition site or the NLS, can be mutated to produce the short period phenotype. Mutation of residues affecting internally placed residues produced a longer period, suggesting that a specific domain on the surface of the kinase might generate an interaction with a substrate or regulator, with short periods produced when the interaction is disrupted.
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Affiliation(s)
- Anandakrishnan Venkatesan
- Division of Molecular Biology and Biochemistry, School of Biological Sciences, University of Missouri-Kansas City, Kansas City, MO 64110, USA.
| | - Jin-Yuan Fan
- Division of Molecular Biology and Biochemistry, School of Biological Sciences, University of Missouri-Kansas City, Kansas City, MO 64110, USA.
| | - Samuel Bouyain
- Division of Molecular Biology and Biochemistry, School of Biological Sciences, University of Missouri-Kansas City, Kansas City, MO 64110, USA.
| | - Jeffrey L Price
- Division of Molecular Biology and Biochemistry, School of Biological Sciences, University of Missouri-Kansas City, Kansas City, MO 64110, USA.
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29
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Li Y, Min L, Zhang L, Hu Q, Wu Y, Li J, Xie S, Ma Y, Zhang X, Zhu L. Promoters of Arabidopsis Casein kinase I-like 2 and 7 confer specific high-temperature response in anther. Plant Mol Biol 2018; 98:33-49. [PMID: 30145767 DOI: 10.1007/s11103-018-0760-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 07/30/2018] [Indexed: 05/18/2023]
Abstract
KEY MESSAGE: (1) We systematically analyze the promoter activities of AtCKLs in various tissues; (2) AtCKL2 and AtCKL7 were expressed in early developmental anthers under high temperature (HT) conditions; (3) AtMYB24 may function as a positive regulator of AtCKL2 and AtCKL7 expression under HT. High temperature (HT) can seriously impede plant growth and development, causing severe loss of crop production. In Arabidopsis, AtCKL genes show high similarity to GhCKI, a gene reported to disrupt tapetal programmed cell death in cotton. However, most of AtCKL genes are not well characterized. Here, we systematically analyzed the expression patterns of AtCKLs in various tissues. The expression of AtCKL2 and AtCKL7 was induced in early anther development under HT, which is similar to the case of GhCKI. In silico analysis of AtCKL2 and AtCKL7 promoters indicated that four types of transcription factors (TFs) (MADS, NAC, WRKY and R2R3-MYB) might bind to AtCKL2 and AtCKL7 promoters. Furthermore, three MADS, three NAC, one WRKY, and three R2R3-MYB TFs were up-regulated in stage 1-8 anthers and three R2R3-MYB TFs were up-regulated in stage 9-10 anthers under HT, implying the important roles of R2R3-MYB genes in the response of anthers to HT. Among the R2R3-MYB genes, AtMYB24 showed the similar expression as AtCKL2 and AtCKL7 in the anthers under HT. Additionally, yeast one-hybrid and dual-luciferase reporter system assays verified that AtMYB24 could bind to AtCKL2 and AtCKL7 promoters and activate the expression of these two genes. In brief, this study provides the overall expression profiles of AtCKLs, useful information for unraveling the molecular mechanism of AtCKL2 and AtCKL7 gene expression in early anther development under HT, and important clues for elucidating the mechanism of transcriptional regulation of CKI genes in plant anther under HT, which are critical to the reduction of crop yield loss resulting from HT.
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Affiliation(s)
- Yaoyao Li
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Ling Min
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, 430070, China.
| | - Lin Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Qin Hu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Yuanlong Wu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Jie Li
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Sai Xie
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Yizan Ma
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Xianlong Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Longfu Zhu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, 430070, China.
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30
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Fulcher LJ, Bozatzi P, Tachie-Menson T, Wu KZL, Cummins TD, Bufton JC, Pinkas DM, Dunbar K, Shrestha S, Wood NT, Weidlich S, Macartney TJ, Varghese J, Gourlay R, Campbell DG, Dingwell KS, Smith JC, Bullock AN, Sapkota GP. The DUF1669 domain of FAM83 family proteins anchor casein kinase 1 isoforms. Sci Signal 2018; 11:eaao2341. [PMID: 29789297 PMCID: PMC6025793 DOI: 10.1126/scisignal.aao2341] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [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: 01/03/2023]
Abstract
Members of the casein kinase 1 (CK1) family of serine-threonine protein kinases are implicated in the regulation of many cellular processes, including the cell cycle, circadian rhythms, and Wnt and Hedgehog signaling. Because these kinases exhibit constitutive activity in biochemical assays, it is likely that their activity in cells is controlled by subcellular localization, interactions with inhibitory proteins, targeted degradation, or combinations of these mechanisms. We identified members of the FAM83 family of proteins as partners of CK1 in cells. All eight members of the FAM83 family (FAM83A to FAM83H) interacted with the α and α-like isoforms of CK1; FAM83A, FAM83B, FAM83E, and FAM83H also interacted with the δ and ε isoforms of CK1. We detected no interaction between any FAM83 member and the related CK1γ1, CK1γ2, and CK1γ3 isoforms. Each FAM83 protein exhibited a distinct pattern of subcellular distribution and colocalized with the CK1 isoform(s) to which it bound. The interaction of FAM83 proteins with CK1 isoforms was mediated by the conserved domain of unknown function 1669 (DUF1669) that characterizes the FAM83 family. Mutations in FAM83 proteins that prevented them from binding to CK1 interfered with the proper subcellular localization and cellular functions of both the FAM83 proteins and their CK1 binding partners. On the basis of its function, we propose that DUF1669 be renamed the polypeptide anchor of CK1 domain.
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Affiliation(s)
- Luke J Fulcher
- Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, Dundee, Scotland, UK
| | - Polyxeni Bozatzi
- Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, Dundee, Scotland, UK
| | - Theresa Tachie-Menson
- Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, Dundee, Scotland, UK
| | - Kevin Z L Wu
- Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, Dundee, Scotland, UK
| | - Timothy D Cummins
- Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, Dundee, Scotland, UK
| | - Joshua C Bufton
- Structural Genomics Consortium, University of Oxford, Oxford, UK
| | - Daniel M Pinkas
- Structural Genomics Consortium, University of Oxford, Oxford, UK
| | - Karen Dunbar
- Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, Dundee, Scotland, UK
| | - Sabin Shrestha
- Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, Dundee, Scotland, UK
| | - Nicola T Wood
- Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, Dundee, Scotland, UK
| | - Simone Weidlich
- Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, Dundee, Scotland, UK
| | - Thomas J Macartney
- Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, Dundee, Scotland, UK
| | - Joby Varghese
- Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, Dundee, Scotland, UK
| | - Robert Gourlay
- Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, Dundee, Scotland, UK
| | - David G Campbell
- Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, Dundee, Scotland, UK
| | | | | | - Alex N Bullock
- Structural Genomics Consortium, University of Oxford, Oxford, UK
| | - Gopal P Sapkota
- Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, Dundee, Scotland, UK.
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31
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Rocha AG, Knight SAB, Pandey A, Yoon H, Pain J, Pain D, Dancis A. Cysteine desulfurase is regulated by phosphorylation of Nfs1 in yeast mitochondria. Mitochondrion 2018; 40:29-41. [PMID: 28941588 PMCID: PMC5858965 DOI: 10.1016/j.mito.2017.09.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 08/30/2017] [Accepted: 09/13/2017] [Indexed: 01/13/2023]
Abstract
The cysteine desulfurase Nfs1/Isd11 uses the amino acid cysteine as the substrate and its activity is absolutely required for contributing persulfide sulfur to the essential process of iron-sulfur (Fe-S) cluster assembly in mitochondria. Here we describe a novel regulatory process involving phosphorylation of Nfs1 in mitochondria. Phosphorylation enhanced cysteine desulfurase activity, while dephosphorylation decreased its activity. Nfs1 phosphopeptides were identified, and the corresponding phosphosite mutants showed impaired persulfide formation. Nfs1 pull down from mitochondria recovered an associated kinase activity, and Yck2, a kinase present in the pull down, was able to phosphorylate Nfs1 in vitro and stimulate cysteine desulfurase activity. Yck2 exhibited an eclipsed distribution in the mitochondrial matrix, although other cellular localizations have been previously described. Mitochondria lacking the Yck2 protein kinase (∆yck2) showed less phosphorylating activity for Nfs1. Compared with wild-type mitochondria, ∆yck2 mitochondria revealed slower persulfide formation on Nfs1 consistent with a role of Yck2 in regulating mitochondrial cysteine desulfurase activity. We propose that Nfs1 phosphorylation may provide a means of rapid adaptation to increased metabolic demand for sulfur and Fe-S clusters within mitochondria.
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Affiliation(s)
- Agostinho G Rocha
- Department of Medicine, Division of Hematology-Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Simon A B Knight
- Department of Medicine, Division of Hematology-Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Alok Pandey
- Department of Pharmacology, Physiology and Neuroscience, New Jersey Medical School, Rutgers University, Newark, NJ, United States
| | - Heeyong Yoon
- Department of Medicine, Division of Hematology-Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Jayashree Pain
- Department of Pharmacology, Physiology and Neuroscience, New Jersey Medical School, Rutgers University, Newark, NJ, United States
| | - Debkumar Pain
- Department of Pharmacology, Physiology and Neuroscience, New Jersey Medical School, Rutgers University, Newark, NJ, United States
| | - Andrew Dancis
- Department of Medicine, Division of Hematology-Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.
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32
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Xia C, Wolf JJ, Vijayan M, Studstill CJ, Ma W, Hahm B. Casein Kinase 1α Mediates the Degradation of Receptors for Type I and Type II Interferons Caused by Hemagglutinin of Influenza A Virus. J Virol 2018; 92:e00006-18. [PMID: 29343571 PMCID: PMC5972889 DOI: 10.1128/jvi.00006-18] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 01/08/2018] [Indexed: 01/24/2023] Open
Abstract
Although influenza A virus (IAV) evades cellular defense systems to effectively propagate in the host, the viral immune-evasive mechanisms are incompletely understood. Our recent data showed that hemagglutinin (HA) of IAV induces degradation of type I IFN receptor 1 (IFNAR1). Here, we demonstrate that IAV HA induces degradation of type II IFN (IFN-γ) receptor 1 (IFNGR1), as well as IFNAR1, via casein kinase 1α (CK1α), resulting in the impairment of cellular responsiveness to both type I and II IFNs. IAV infection or transient HA expression induced degradation of both IFNGR1 and IFNAR1, whereas HA gene-deficient IAV failed to downregulate the receptors. IAV HA caused the phosphorylation and ubiquitination of IFNGR1, leading to the lysosome-dependent degradation of IFNGR1. Influenza viral HA strongly decreased cellular sensitivity to type II IFNs, as it suppressed the activation of STAT1 and the induction of IFN-γ-stimulated genes in response to exogenously supplied recombinant IFN-γ. Importantly, CK1α, but not p38 MAP kinase or protein kinase D2, was proven to be critical for HA-induced degradation of both IFNGR1 and IFNAR1. Pharmacologic inhibition of CK1α or small interfering RNA (siRNA)-based knockdown of CK1α repressed the degradation processes of both IFNGR1 and IFNAR1 triggered by IAV infection. Further, CK1α was shown to be pivotal for proficient replication of IAV. Collectively, the results suggest that IAV HA induces degradation of IFN receptors via CK1α, creating conditions favorable for viral propagation. Therefore, the study uncovers a new immune-evasive pathway of influenza virus.IMPORTANCE Influenza A virus (IAV) remains a grave threat to humans, causing seasonal and pandemic influenza. Upon infection, innate and adaptive immunity, such as the interferon (IFN) response, is induced to protect hosts against IAV infection. However, IAV seems to be equipped with tactics to evade the IFN-mediated antiviral responses, although the detailed mechanisms need to be elucidated. In the present study, we show that IAV HA induces the degradation of the type II IFN receptor IFNGR1 and thereby substantially attenuates cellular responses to IFN-γ. Of note, a cellular kinase, casein kinase 1α (CK1α), is crucial for IAV HA-induced degradation of both IFNGR1 and IFNAR1. Accordingly, CK1α is proven to positively regulate IAV propagation. Thus, this study unveils a novel strategy employed by IAV to evade IFN-mediated antiviral activities. These findings may provide new insights into the interplay between IAV and host immunity to impact influenza virus pathogenicity.
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MESH Headings
- A549 Cells
- Animals
- Casein Kinase I/genetics
- Casein Kinase I/immunology
- Chlorocebus aethiops
- Dogs
- HEK293 Cells
- Hemagglutinin Glycoproteins, Influenza Virus/genetics
- Hemagglutinin Glycoproteins, Influenza Virus/immunology
- Humans
- Immune Evasion
- Influenza A Virus, H1N1 Subtype/genetics
- Influenza A Virus, H1N1 Subtype/immunology
- Influenza, Human/genetics
- Influenza, Human/immunology
- Influenza, Human/pathology
- Madin Darby Canine Kidney Cells
- Protein Kinase D2
- Protein Kinases/genetics
- Protein Kinases/immunology
- Proteolysis
- Receptor, Interferon alpha-beta/genetics
- Receptor, Interferon alpha-beta/immunology
- Receptors, Interferon/genetics
- Receptors, Interferon/immunology
- STAT1 Transcription Factor/genetics
- STAT1 Transcription Factor/immunology
- Vero Cells
- p38 Mitogen-Activated Protein Kinases/genetics
- p38 Mitogen-Activated Protein Kinases/immunology
- Interferon gamma Receptor
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Affiliation(s)
- Chuan Xia
- Department of Surgery, University of Missouri, Columbia, Missouri, USA
- Department of Molecular Microbiology and Immunology, University of Missouri, Columbia, Missouri, USA
| | - Jennifer J Wolf
- Department of Surgery, University of Missouri, Columbia, Missouri, USA
- Department of Molecular Microbiology and Immunology, University of Missouri, Columbia, Missouri, USA
| | - Madhuvanthi Vijayan
- Department of Surgery, University of Missouri, Columbia, Missouri, USA
- Department of Molecular Microbiology and Immunology, University of Missouri, Columbia, Missouri, USA
| | - Caleb J Studstill
- Department of Surgery, University of Missouri, Columbia, Missouri, USA
- Department of Molecular Microbiology and Immunology, University of Missouri, Columbia, Missouri, USA
| | - Wenjun Ma
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, USA
| | - Bumsuk Hahm
- Department of Surgery, University of Missouri, Columbia, Missouri, USA
- Department of Molecular Microbiology and Immunology, University of Missouri, Columbia, Missouri, USA
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Greer YE, Gao B, Yang Y, Nussenzweig A, Rubin JS. Lack of Casein Kinase 1 Delta Promotes Genomic Instability - The Accumulation of DNA Damage and Down-Regulation of Checkpoint Kinase 1. PLoS One 2017; 12:e0170903. [PMID: 28125685 PMCID: PMC5268481 DOI: 10.1371/journal.pone.0170903] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 01/12/2017] [Indexed: 12/18/2022] Open
Abstract
Casein kinase 1 delta (CK1δ) is a conserved serine/threonine protein kinase that regulates diverse cellular processes. Mice lacking CK1δ have a perinatal lethal phenotype and typically weigh 30% less than their wild type littermates. However, the causes of death and small size are unknown. We observed cells with abnormally large nuclei in tissue from Csnk1d null embryos, and multiple centrosomes in mouse embryo fibroblasts (MEFs) deficient in CK1δ (MEFCsnk1d null). Results from γ-H2AX staining and the comet assay demonstrated significant DNA damage in MEFCsnk1d null cells. These cells often contain micronuclei, an indicator of genomic instability. Similarly, abrogation of CK1δ expression in control MEFs stimulated micronuclei formation after doxorubicin treatment, suggesting that CK1δ loss increases vulnerability to genotoxic stress. Cellular levels of total and activated checkpoint kinase 1 (Chk1), which functions in the DNA damage response and mitotic checkpoints, and its downstream effector, Cdc2/CDK1 kinase, were often decreased in MEFCsnk1d null cells as well as in control MEFs transfected with CK1δ siRNA. Hydroxyurea-induced Chk1 activation, as measured by Ser345 phosphorylation, and nuclear localization also were impaired in MEF cells following siRNA knockdown of CK1δ. Similar results were observed in the MCF7 human breast cancer cell line. The decreases in phosphorylated Chk1 were rescued by concomitant expression of siRNA-resistant CK1δ. Experiments with cycloheximide demonstrated that the stability of Chk1 protein was diminished in cells subjected to CK1δ knockdown. Together, these findings suggest that CK1δ contributes to the efficient repair of DNA damage and the proper functioning of mitotic checkpoints by maintaining appropriate levels of Chk1.
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Affiliation(s)
- Yoshimi Endo Greer
- Laboratory of Cellular and Molecular Biology, National Cancer Institute, Bethesda, Maryland, United States of America
- Women’s Malignancies Branch, National Cancer Institute, Bethesda, Maryland, United States of America
- * E-mail: (YEG); (JSR)
| | - Bo Gao
- Genetic Disease Research Branch, National Human Genome Research Institute, Bethesda, Maryland, United States of America
| | - Yingzi Yang
- Genetic Disease Research Branch, National Human Genome Research Institute, Bethesda, Maryland, United States of America
| | - Andre Nussenzweig
- Laboratory of Genome Integrity, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Jeffrey S. Rubin
- Laboratory of Cellular and Molecular Biology, National Cancer Institute, Bethesda, Maryland, United States of America
- * E-mail: (YEG); (JSR)
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Portegijs V, Fielmich LE, Galli M, Schmidt R, Muñoz J, van Mourik T, Akhmanova A, Heck AJR, Boxem M, van den Heuvel S. Multisite Phosphorylation of NuMA-Related LIN-5 Controls Mitotic Spindle Positioning in C. elegans. PLoS Genet 2016; 12:e1006291. [PMID: 27711157 PMCID: PMC5053539 DOI: 10.1371/journal.pgen.1006291] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 08/10/2016] [Indexed: 11/18/2022] Open
Abstract
During cell division, the mitotic spindle segregates replicated chromosomes to opposite poles of the cell, while the position of the spindle determines the plane of cleavage. Spindle positioning and chromosome segregation depend on pulling forces on microtubules extending from the centrosomes to the cell cortex. Critical in pulling force generation is the cortical anchoring of cytoplasmic dynein by a conserved ternary complex of Gα, GPR-1/2, and LIN-5 proteins in C. elegans (Gα–LGN–NuMA in mammals). Previously, we showed that the polarity kinase PKC-3 phosphorylates LIN-5 to control spindle positioning in early C. elegans embryos. Here, we investigate whether additional LIN-5 phosphorylations regulate cortical pulling forces, making use of targeted alteration of in vivo phosphorylated residues by CRISPR/Cas9-mediated genetic engineering. Four distinct in vivo phosphorylated LIN-5 residues were found to have critical functions in spindle positioning. Two of these residues form part of a 30 amino acid binding site for GPR-1, which we identified by reverse two-hybrid screening. We provide evidence for a dual-kinase mechanism, involving GSK3 phosphorylation of S659 followed by phosphorylation of S662 by casein kinase 1. These LIN-5 phosphorylations promote LIN-5–GPR-1/2 interaction and contribute to cortical pulling forces. The other two critical residues, T168 and T181, form part of a cyclin-dependent kinase consensus site and are phosphorylated by CDK1-cyclin B in vitro. We applied a novel strategy to characterize early embryonic defects in lethal T168,T181 knockin substitution mutants, and provide evidence for sequential LIN-5 N-terminal phosphorylation and dephosphorylation in dynein recruitment. Our data support that phosphorylation of multiple LIN-5 domains by different kinases contributes to a mechanism for spatiotemporal control of spindle positioning and chromosome segregation. Protein kinases control biological processes by phosphorylating specific amino acids of substrate proteins. It remains a major challenge to identify which phosphorylation events are critical in vivo and how phosphorylation affects protein function. Recent developments in CRISPR/Cas9-based genetic engineering make it possible to substitute individual amino acids, which allows investigating the role of single and multi-site phosphorylation of substrates in vivo. Here, we focus on an intensively phosphorylated cell division protein, LIN-5NuMA. C. elegans LIN-5 participates in chromosome segregation and is essential for positioning the spindle and cell cleavage plane during asymmetric cell division. Previously, we demonstrated that the polarity kinase PKC-3 phosphorylates LIN-5 to inhibit its function. Our current analysis reveals four additional phosphorylated residues that are critical for LIN-5 function. Two of these residues contribute to the interaction of LIN-5 with its binding partner GPR-1/2, whereas the other two residues are critical in dynein motor recruitment by LIN-5. Together, our results reveal that multisite phosphorylation of LIN-5 is essential to ensure proper chromosome segregation and spindle positioning.
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Affiliation(s)
- Vincent Portegijs
- Developmental Biology, Department of Biology, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Lars-Eric Fielmich
- Developmental Biology, Department of Biology, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Matilde Galli
- Developmental Biology, Department of Biology, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Ruben Schmidt
- Developmental Biology, Department of Biology, Faculty of Science, Utrecht University, Utrecht, The Netherlands
- Cell Biology, Department of Biology, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Javier Muñoz
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Tim van Mourik
- Developmental Biology, Department of Biology, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Anna Akhmanova
- Cell Biology, Department of Biology, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Albert J. R. Heck
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Mike Boxem
- Developmental Biology, Department of Biology, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Sander van den Heuvel
- Developmental Biology, Department of Biology, Faculty of Science, Utrecht University, Utrecht, The Netherlands
- * E-mail:
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Elalaoui SC, Al-Sheqaih N, Ratbi I, Urquhart JE, O'Sullivan J, Bhaskar S, Williams SS, Elalloussi M, Lyahyai J, Sbihi L, Cherkaoui Jaouad I, Sbihi A, Newman WG, Sefiani A. Non lethal Raine syndrome and differential diagnosis. Eur J Med Genet 2016; 59:577-583. [PMID: 27667191 DOI: 10.1016/j.ejmg.2016.09.018] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [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: 09/16/2016] [Accepted: 09/18/2016] [Indexed: 12/12/2022]
Abstract
Raine syndrome is a rare autosomal recessive bone dysplasia characterized by characteristic facial features with exophthalmos and generalized osteosclerosis. Amelogenesis imperfecta, hearing loss, seizures, and intracerebral calcification are apparent in some affected individuals. Originally, Raine syndrome was originally reported as a lethal syndrome. However, recently a milder phenotype, compatible with life, has been described. Biallelic variants inFAM20C, encoding aGolgi casein kinase involved in biomineralisation, have been identified in affected individuals. We report here a consanguineous Moroccan family with two affected siblingsa girl aged 18 and a boy of 15years. Clinical features, including learning disability, seizures and amelogenesis imperfecta, initially suggested a diagnosis of Kohlschutter-Tonz syndrome. However,a novel homozygous FAM20Cvariantc.676T > A, p.(Trp226Arg) was identified in the affected siblings. Our report reinforces that Raine syndrome is compatible with life, and that mild hypophosphatemia and amelogenesis imperfecta are key features of the attenuated form.
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Affiliation(s)
- Siham Chafai Elalaoui
- Centre de Génomique Humaine, Faculté de Médecine et de Pharmacie, Université Mohammed V Souissi, Rabat, Morocco; Département de Génétique Médicale, Institut National d'Hygiène, Rabat, Morocco.
| | - Nada Al-Sheqaih
- Manchester Centre for Genomic Medicine, St. Mary's Hospital, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK; Manchester Centre for Genomic Medicine, Institute of Human Development, University of Manchester, Manchester, M13 9WL, UK
| | - Ilham Ratbi
- Centre de Génomique Humaine, Faculté de Médecine et de Pharmacie, Université Mohammed V Souissi, Rabat, Morocco
| | - Jill E Urquhart
- Manchester Centre for Genomic Medicine, St. Mary's Hospital, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK; Manchester Centre for Genomic Medicine, Institute of Human Development, University of Manchester, Manchester, M13 9WL, UK
| | - James O'Sullivan
- Manchester Centre for Genomic Medicine, St. Mary's Hospital, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK; Manchester Centre for Genomic Medicine, Institute of Human Development, University of Manchester, Manchester, M13 9WL, UK
| | - Sanjeev Bhaskar
- Manchester Centre for Genomic Medicine, St. Mary's Hospital, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK
| | - Simon S Williams
- Manchester Centre for Genomic Medicine, St. Mary's Hospital, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK
| | - Mustapha Elalloussi
- Service d'Odontologie Pédiatrique, Faculté de Médecine Dentaire, Université Mohammed V, Rabat, Morocco
| | - Jaber Lyahyai
- Centre de Génomique Humaine, Faculté de Médecine et de Pharmacie, Université Mohammed V Souissi, Rabat, Morocco
| | - Leila Sbihi
- Service de Radiologie, Hopital Ibn Sina, Rabat, Morocco
| | - Imane Cherkaoui Jaouad
- Centre de Génomique Humaine, Faculté de Médecine et de Pharmacie, Université Mohammed V Souissi, Rabat, Morocco; Département de Génétique Médicale, Institut National d'Hygiène, Rabat, Morocco
| | | | - William G Newman
- Manchester Centre for Genomic Medicine, St. Mary's Hospital, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK; Manchester Centre for Genomic Medicine, Institute of Human Development, University of Manchester, Manchester, M13 9WL, UK
| | - Abdelaziz Sefiani
- Centre de Génomique Humaine, Faculté de Médecine et de Pharmacie, Université Mohammed V Souissi, Rabat, Morocco; Département de Génétique Médicale, Institut National d'Hygiène, Rabat, Morocco
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36
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Li S, Li S, Han Y, Tong C, Wang B, Chen Y, Jiang J. Regulation of Smoothened Phosphorylation and High-Level Hedgehog Signaling Activity by a Plasma Membrane Associated Kinase. PLoS Biol 2016; 14:e1002481. [PMID: 27280464 PMCID: PMC4900676 DOI: 10.1371/journal.pbio.1002481] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 05/12/2016] [Indexed: 12/21/2022] Open
Abstract
Hedgehog (Hh) signaling controls embryonic development and adult tissue homeostasis through the G protein coupled receptor (GPCR)-family protein Smoothened (Smo). Upon stimulation, Smo accumulates on the cell surface in Drosophila or primary cilia in vertebrates, which is thought to be essential for its activation and function, but the underlying mechanisms remain poorly understood. Here we show that Hh stimulates the binding of Smo to a plasma membrane-associated kinase Gilgamesh (Gish)/CK1γ and that Gish fine-tunes Hh pathway activity by phosphorylating a Ser/Thr cluster (CL-II) in the juxtamembrane region of Smo carboxyl-terminal intracellular tail (C-tail). We find that CL-II phosphorylation is promoted by protein kinase A (PKA)-mediated phosphorylation of Smo C-tail and depends on cell surface localization of both Gish and Smo. Consistent with CL-II being critical for high-threshold Hh target gene expression, its phosphorylation appears to require higher levels of Hh or longer exposure to the same level of Hh than PKA-site phosphorylation on Smo. Furthermore, we find that vertebrate CK1γ is localized at the primary cilium to promote Smo phosphorylation and Sonic hedgehog (Shh) pathway activation. Our study reveals a conserved mechanism whereby Hh induces a change in Smo subcellular localization to promote its association with and activation by a plasma membrane localized kinase, and provides new insight into how Hh morphogen progressively activates Smo.
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Affiliation(s)
- Shuangxi Li
- Department of Molecular Biology, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, United States of America
- Department of Developmental Biology, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, United States of America
| | - Shuang Li
- Department of Molecular Biology, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, United States of America
- Department of Developmental Biology, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, United States of America
| | - Yuhong Han
- Department of Molecular Biology, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, United States of America
- Department of Developmental Biology, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, United States of America
| | - Chao Tong
- Department of Developmental Biology, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, United States of America
| | - Bing Wang
- Department of Molecular Biology, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, United States of America
- Department of Developmental Biology, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, United States of America
| | - Yongbin Chen
- Department of Developmental Biology, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, United States of America
- Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - Jin Jiang
- Department of Molecular Biology, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, United States of America
- Department of Developmental Biology, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, United States of America
- Department of Pharmacology, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, United States of America
- * E-mail:
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37
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Hytönen MK, Arumilli M, Lappalainen AK, Owczarek-Lipska M, Jagannathan V, Hundi S, Salmela E, Venta P, Sarkiala E, Jokinen T, Gorgas D, Kere J, Nieminen P, Drögemüller C, Lohi H. Molecular Characterization of Three Canine Models of Human Rare Bone Diseases: Caffey, van den Ende-Gupta, and Raine Syndromes. PLoS Genet 2016; 12:e1006037. [PMID: 27187611 PMCID: PMC4871343 DOI: 10.1371/journal.pgen.1006037] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 04/18/2016] [Indexed: 12/03/2022] Open
Abstract
One to two percent of all children are born with a developmental disorder requiring pediatric hospital admissions. For many such syndromes, the molecular pathogenesis remains poorly characterized. Parallel developmental disorders in other species could provide complementary models for human rare diseases by uncovering new candidate genes, improving the understanding of the molecular mechanisms and opening possibilities for therapeutic trials. We performed various experiments, e.g. combined genome-wide association and next generation sequencing, to investigate the clinico-pathological features and genetic causes of three developmental syndromes in dogs, including craniomandibular osteopathy (CMO), a previously undescribed skeletal syndrome, and dental hypomineralization, for which we identified pathogenic variants in the canine SLC37A2 (truncating splicing enhancer variant), SCARF2 (truncating 2-bp deletion) and FAM20C (missense variant) genes, respectively. CMO is a clinical equivalent to an infantile cortical hyperostosis (Caffey disease), for which SLC37A2 is a new candidate gene. SLC37A2 is a poorly characterized member of a glucose-phosphate transporter family without previous disease associations. It is expressed in many tissues, including cells of the macrophage lineage, e.g. osteoclasts, and suggests a disease mechanism, in which an impaired glucose homeostasis in osteoclasts compromises their function in the developing bone, leading to hyperostosis. Mutations in SCARF2 and FAM20C have been associated with the human van den Ende-Gupta and Raine syndromes that include numerous features similar to the affected dogs. Given the growing interest in the molecular characterization and treatment of human rare diseases, our study presents three novel physiologically relevant models for further research and therapy approaches, while providing the molecular identity for the canine conditions. Rare developmental disorders make a major contribution to pediatric hospital admissions and mortality. There is a growing interest in the development of therapeutics for these conditions, but that requires understanding of the genetic cause and pathology. Research can be facilitated by physiologically relevant models, such as dogs with corresponding disorders. We have characterized the clinical features and genetic causes of three developmental syndromes in dogs, including craniomandibular osteopathy (CMO), a previously undescribed skeletal syndrome, and dental hypomineralization, for which we identified mutations in the canine SLC37A2, SCARF2 and FAM20C genes, respectively. CMO is a clinical equivalent to an infantile cortical hyperostosis (Caffey disease) for which SLC37A2 is a new candidate gene. SLC37A2 is a glucose-phosphate transporter in osteoclasts, and its defect suggests an impaired glucose homeostasis in developing bone, leading to hyperostosis. Mutations in the SCARF2 and FAM20C genes have been associated with the human van den Ende-Gupta and Raine syndromes. Our study provides molecular identity for the canine conditions and presents three novel physiologically relevant models of human rare diseases.
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Affiliation(s)
- Marjo K. Hytönen
- Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland
- Research Programs Unit, Molecular Neurology, University of Helsinki, Helsinki, Finland
- The Folkhälsan Institute of Genetics, Helsinki, Finland
| | - Meharji Arumilli
- Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland
- Research Programs Unit, Molecular Neurology, University of Helsinki, Helsinki, Finland
- The Folkhälsan Institute of Genetics, Helsinki, Finland
| | - Anu K. Lappalainen
- Department of Equine and Small Animal Medicine, University of Helsinki, Helsinki, Finland
| | | | - Vidhya Jagannathan
- Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Sruthi Hundi
- Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland
- Research Programs Unit, Molecular Neurology, University of Helsinki, Helsinki, Finland
- The Folkhälsan Institute of Genetics, Helsinki, Finland
| | - Elina Salmela
- Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland
- Research Programs Unit, Molecular Neurology, University of Helsinki, Helsinki, Finland
- The Folkhälsan Institute of Genetics, Helsinki, Finland
| | - Patrick Venta
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, Michigan, United States of America
| | - Eva Sarkiala
- Department of Equine and Small Animal Medicine, University of Helsinki, Helsinki, Finland
| | - Tarja Jokinen
- Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland
- Department of Equine and Small Animal Medicine, University of Helsinki, Helsinki, Finland
| | - Daniela Gorgas
- Division of Clinical Radiology, Department of Clinical Veterinary Medicine, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Juha Kere
- Research Programs Unit, Molecular Neurology, University of Helsinki, Helsinki, Finland
- The Folkhälsan Institute of Genetics, Helsinki, Finland
- Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
| | - Pekka Nieminen
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
| | - Cord Drögemüller
- Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Hannes Lohi
- Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland
- Research Programs Unit, Molecular Neurology, University of Helsinki, Helsinki, Finland
- The Folkhälsan Institute of Genetics, Helsinki, Finland
- * E-mail:
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Goettsch C, Hutcheson JD, Aikawa M, Iwata H, Pham T, Nykjaer A, Kjolby M, Rogers M, Michel T, Shibasaki M, Hagita S, Kramann R, Rader DJ, Libby P, Singh SA, Aikawa E. Sortilin mediates vascular calcification via its recruitment into extracellular vesicles. J Clin Invest 2016; 126:1323-36. [PMID: 26950419 DOI: 10.1172/jci80851] [Citation(s) in RCA: 169] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Accepted: 01/21/2016] [Indexed: 12/23/2022] Open
Abstract
Vascular calcification is a common feature of major cardiovascular diseases. Extracellular vesicles participate in the formation of microcalcifications that are implicated in atherosclerotic plaque rupture; however, the mechanisms that regulate formation of calcifying extracellular vesicles remain obscure. Here, we have demonstrated that sortilin is a key regulator of smooth muscle cell (SMC) calcification via its recruitment to extracellular vesicles. Sortilin localized to calcifying vessels in human and mouse atheromata and participated in formation of microcalcifications in SMC culture. Sortilin regulated the loading of the calcification protein tissue nonspecific alkaline phosphatase (TNAP) into extracellular vesicles, thereby conferring its calcification potential. Furthermore, SMC calcification required Rab11-dependent trafficking and FAM20C/casein kinase 2-dependent C-terminal phosphorylation of sortilin. In a murine model, Sort1-deficiency reduced arterial calcification but did not affect bone mineralization. Additionally, transfer of sortilin-deficient BM cells to irradiated atherosclerotic mice did not affect vascular calcification, indicating a primary role of SMC-derived sortilin. Together, the results of this study identify sortilin phosphorylation as a potential therapeutic target for ectopic calcification/microcalcification and may clarify the mechanism that underlies the genetic association between the SORT1 gene locus and coronary artery calcification.
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MESH Headings
- Adaptor Proteins, Vesicular Transport/genetics
- Adaptor Proteins, Vesicular Transport/metabolism
- Alkaline Phosphatase/biosynthesis
- Alkaline Phosphatase/genetics
- Animals
- Calcium-Binding Proteins/genetics
- Calcium-Binding Proteins/metabolism
- Carrier Proteins/biosynthesis
- Carrier Proteins/genetics
- Casein Kinase I/genetics
- Casein Kinase I/metabolism
- Casein Kinase II/metabolism
- Cell-Derived Microparticles/genetics
- Cell-Derived Microparticles/metabolism
- Cells, Cultured
- Extracellular Matrix Proteins/genetics
- Extracellular Matrix Proteins/metabolism
- Humans
- Mice
- Mice, Knockout
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Phosphorylation
- Plaque, Atherosclerotic/metabolism
- Plaque, Atherosclerotic/pathology
- Protein Transport
- Vascular Calcification/genetics
- Vascular Calcification/metabolism
- Vascular Calcification/pathology
- rab GTP-Binding Proteins/genetics
- rab GTP-Binding Proteins/metabolism
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Abstract
Circadian rhythms with an endogenous period close to or equal to the natural light-dark cycle are considered evolutionarily adaptive ("circadian resonance hypothesis"). Despite remarkable insight into the molecular mechanisms driving circadian cycles, this hypothesis has not been tested under natural conditions for any eukaryotic organism. We tested this hypothesis in mice bearing a short-period mutation in the enzyme casein kinase 1ε (tau mutation), which accelerates free-running circadian cycles. We compared daily activity (feeding) rhythms, survivorship, and reproduction in six replicate populations in outdoor experimental enclosures, established with wild-type, heterozygous, and homozygous mice in a Mendelian ratio. In the release cohort, survival was reduced in the homozygote mutant mice, revealing strong selection against short-period genotypes. Over the course of 14 mo, the relative frequency of the tau allele dropped from initial parity to 20%. Adult survival and recruitment of juveniles into the population contributed approximately equally to the selection for wild-type alleles. The expression of activity during daytime varied throughout the experiment and was significantly increased by the tau mutation. The strong selection against the short-period tau allele observed here contrasts with earlier studies showing absence of selection against a Period 2 (Per2) mutation, which disrupts internal clock function, but does not change period length. These findings are consistent with, and predicted by the theory that resonance of the circadian system plays an important role in individual fitness.
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Affiliation(s)
- Kamiel Spoelstra
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544; Department of Migration and Immuno-Ecology, Max Planck Institute for Ornithology, D-78315 Radolfzell, Germany;
| | - Martin Wikelski
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544; Department of Migration and Immuno-Ecology, Max Planck Institute for Ornithology, D-78315 Radolfzell, Germany; Department of Biology, University of Konstanz, D-78457 Konstanz, Germany
| | - Serge Daan
- Unit of Chronobiology, Institute of Evolutionary Life Sciences, University of Groningen, 9747 AG Groningen, The Netherlands
| | - Andrew S I Loudon
- Faculty of Life Sciences, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Michaela Hau
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544; Department of Biology, University of Konstanz, D-78457 Konstanz, Germany; Evolutionary Physiology Group, Max Planck Institute for Ornithology, D-82319 Seewiesen, Germany
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40
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Dorin-Semblat D, Demarta-Gatsi C, Hamelin R, Armand F, Carvalho TG, Moniatte M, Doerig C. Malaria Parasite-Infected Erythrocytes Secrete PfCK1, the Plasmodium Homologue of the Pleiotropic Protein Kinase Casein Kinase 1. PLoS One 2015; 10:e0139591. [PMID: 26629826 PMCID: PMC4668060 DOI: 10.1371/journal.pone.0139591] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [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: 07/22/2015] [Accepted: 09/14/2015] [Indexed: 11/18/2022] Open
Abstract
Casein kinase 1 (CK1) is a pleiotropic protein kinase implicated in several fundamental processes of eukaryotic cell biology. Plasmodium falciparum encodes a single CK1 isoform, PfCK1, that is expressed at all stages of the parasite’s life cycle. We have previously shown that the pfck1 gene cannot be disrupted, but that the locus can be modified if no loss-of-function is incurred, suggesting an important role for this kinase in intra-erythrocytic asexual proliferation. Here, we report on the use of parasite lines expressing GFP- or His-tagged PfCK1 from the endogenous locus to investigate (i) the dynamics of PfCK1 localisation during the asexual cycle in red blood cells, and (ii) potential interactors of PfCK1, so as to gain insight into the involvement of the enzyme in specific cellular processes. Immunofluorescence analysis reveals a dynamic localisation of PfCK1, with evidence for a pool of the enzyme being directed to the membrane of the host erythrocyte in the early stages of infection, followed by a predominantly intra-parasite localisation in trophozoites and schizonts and association with micronemes in merozoites. Furthermore, we present strong evidence that a pool of enzymatically active PfCK1 is secreted into the culture supernatant, demonstrating that PfCK1 is an ectokinase. Our interactome experiments and ensuing kinase assays using recombinant PfCK1 to phosphorylate putative interactors in vitro suggest an involvement of PfCK1 in many cellular processes such as mRNA splicing, protein trafficking, ribosomal, and host cell invasion.
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Affiliation(s)
- Dominique Dorin-Semblat
- UMR S1134, Institut National de Transfusion Sanguine, 6 Rue Alexandre Cabanel, 75015 Paris, France
| | - Claudia Demarta-Gatsi
- Institut Pasteur, Unité de Biologie des Interactions Hôte-Parasites, 25–28 rue du Dr Roux, Paris F-75015, France
| | - Romain Hamelin
- Proteomics Core Facility, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Florence Armand
- Proteomics Core Facility, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Teresa Gil Carvalho
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Victoria, Australia, 3800
| | - Marc Moniatte
- Proteomics Core Facility, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Christian Doerig
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Victoria, Australia, 3800
- * E-mail:
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Min L, Hu Q, Li Y, Xu J, Ma Y, Zhu L, Yang X, Zhang X. LEAFY COTYLEDON1-CASEIN KINASE I-TCP15-PHYTOCHROME INTERACTING FACTOR4 Network Regulates Somatic Embryogenesis by Regulating Auxin Homeostasis. Plant Physiol 2015; 169:2805-21. [PMID: 26491146 PMCID: PMC4677921 DOI: 10.1104/pp.15.01480] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 10/21/2015] [Indexed: 05/19/2023]
Abstract
Somatic embryogenesis (SE) is an efficient tool for the propagation of plant species and also, a useful model for studying the regulatory networks in embryo development. However, the regulatory networks underlying the transition from nonembryogenic callus to somatic embryos during SE remain poorly understood. Here, we describe an upland cotton (Gossypium hirsutum) CASEIN KINASE I gene, GhCKI, which is a unique key regulatory factor that strongly affects SE. Overexpressing GhCKI halted the formation of embryoids and plant regeneration because of a block in the transition from nonembryogenic callus to somatic embryos. In contrast, defective GhCKI in plants facilitated SE. To better understand the mechanism by which GhCKI regulates SE, the regulatory network was analyzed. A direct upstream negative regulator protein, cotton LEAFY COTYLEDON1, was identified to be targeted to a cis-element, CTTTTC, in the promoter of GhCKI. Moreover, GhCKI interacted with and phosphorylated cotton CINCINNATA-like TEOSINTE BRANCHED1-CYCLOIDEA-PCF transcription factor15 by coordinately regulating the expression of cotton PHYTOCHROME INTERACTING FACTOR4, finally disrupting auxin homeostasis, which led to increased cell proliferation and aborted somatic embryo formation in GhCKI-overexpressing somatic cells. Our results show a complex process of SE that is negatively regulated by GhCKI through a complex regulatory network.
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Affiliation(s)
- Ling Min
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Qin Hu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Yaoyao Li
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Jiao Xu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Yizan Ma
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Longfu Zhu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Xiyan Yang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Xianlong Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, China
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42
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Baron JA, Chen JS, Culotta VC. Cu/Zn superoxide dismutase and the proton ATPase Pma1p of Saccharomyces cerevisiae. Biochem Biophys Res Commun 2015; 462:251-6. [PMID: 25956063 PMCID: PMC4458189 DOI: 10.1016/j.bbrc.2015.04.127] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 04/26/2015] [Indexed: 12/30/2022]
Abstract
In eukaryotes, the Cu/Zn containing superoxide dismutase (SOD1) plays a critical role in oxidative stress protection as well as in signaling. We recently demonstrated a function for Saccharomyces cerevisiae Sod1p in signaling through CK1γ casein kinases and identified the essential proton ATPase Pma1p as one likely target. The connection between Sod1p and Pma1p was explored further by testing the impact of sod1Δ mutations on cells expressing mutant alleles of Pma1p that alter activity and/or post-translational regulation of this ATPase. We report here that sod1Δ mutations are lethal when combined with the T912D allele of Pma1p in the C-terminal regulatory domain. This "synthetic lethality" was reversed by intragenic suppressor mutations in Pma1p, including an A906G substitution that lies within the C-terminal regulatory domain and hyper-activates Pma1p. Surprisingly the effect of sod1Δ mutations on Pma1-T912D is not mediated through the Sod1p signaling pathway involving the CK1γ casein kinases. Rather, Sod1p sustains life of cells expressing Pma1-T912D through oxidative stress protection. The synthetic lethality of sod1Δ Pma1-T912D cells is suppressed by growing cells under low oxygen conditions or by treatments with manganese-based antioxidants. We now propose a model in which Sod1p maximizes Pma1p activity in two ways: one involving signaling through CK1γ casein kinases and an independent role for Sod1p in oxidative stress protection.
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Affiliation(s)
- J Allen Baron
- Department of Biochemistry and Molecular Biology, Johns Hopkins U. Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD 21205, USA
| | - Janice S Chen
- Department of Biochemistry and Molecular Biology, Johns Hopkins U. Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD 21205, USA
| | - Valeria C Culotta
- Department of Biochemistry and Molecular Biology, Johns Hopkins U. Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD 21205, USA.
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43
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Xu P, Fischer-Posovszky P, Bischof J, Radermacher P, Wabitsch M, Henne-Bruns D, Wolf AM, Hillenbrand A, Knippschild U. Gene expression levels of Casein kinase 1 (CK1) isoforms are correlated to adiponectin levels in adipose tissue of morbid obese patients and site-specific phosphorylation mediated by CK1 influences multimerization of adiponectin. Mol Cell Endocrinol 2015; 406:87-101. [PMID: 25724478 DOI: 10.1016/j.mce.2015.02.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 01/29/2015] [Accepted: 02/11/2015] [Indexed: 01/03/2023]
Abstract
White adipose tissue has now been recognized as an important endocrine organ secreting bioactive molecules termed adipocytokines. In obesity, anti-inflammatory adipocytokines like adiponectin are decreased while pro-inflammatory factors are over-produced. These changes contribute to the development of insulin resistance and obesity-associated diseases. Since members of the casein kinase 1 (CK1) family are involved in the regulation of various signaling pathways we ask here whether they are able to modulate the functions of adiponectin. We show that CK1δ and ε are expressed in adipose tissue and that the expression of CK1 isoforms correlates with that of adiponectin. Furthermore, adiponectin co-immunoprecipitates with CK1δ and CK1ε and is phosphorylated by CK1δ at serine 174 and threonine 235, thereby influencing the formation of adiponectin oligomeric complexes. Furthermore, inhibition of CK1δ in human adipocytes by IC261 leads to an increase in basal and insulin-stimulated glucose uptake. In summary, our data indicate that site-specific phosphorylation of adiponectin, especially at sites targeted by CK1δ in vitro, provides an additional regulatory mechanism for modulating adiponectin complex formation and function.
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Affiliation(s)
- Pengfei Xu
- Department of General and Visceral Surgery, University of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Pamela Fischer-Posovszky
- Divison of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, University of Ulm, Eythstrasse 24, 89075 Ulm, Germany
| | - Joachim Bischof
- Department of General and Visceral Surgery, University of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Peter Radermacher
- Institute of Pathophysiology and Process Development in Anesthesia, University of Ulm, Helmholtzstrasse 8/1, 89081 Ulm, Germany
| | - Martin Wabitsch
- Divison of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, University of Ulm, Eythstrasse 24, 89075 Ulm, Germany
| | - Doris Henne-Bruns
- Department of General and Visceral Surgery, University of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Anna-Maria Wolf
- Department of General and Visceral Surgery, University of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Andreas Hillenbrand
- Department of General and Visceral Surgery, University of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, University of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany.
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44
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Phadnis N, Cipak L, Polakova S, Hyppa RW, Cipakova I, Anrather D, Karvaiova L, Mechtler K, Smith GR, Gregan J. Casein Kinase 1 and Phosphorylation of Cohesin Subunit Rec11 (SA3) Promote Meiotic Recombination through Linear Element Formation. PLoS Genet 2015; 11:e1005225. [PMID: 25993311 PMCID: PMC4439085 DOI: 10.1371/journal.pgen.1005225] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 04/15/2015] [Indexed: 11/18/2022] Open
Abstract
Proper meiotic chromosome segregation, essential for sexual reproduction, requires timely formation and removal of sister chromatid cohesion and crossing-over between homologs. Early in meiosis cohesins hold sisters together and also promote formation of DNA double-strand breaks, obligate precursors to crossovers. Later, cohesin cleavage allows chromosome segregation. We show that in fission yeast redundant casein kinase 1 homologs, Hhp1 and Hhp2, previously shown to regulate segregation via phosphorylation of the Rec8 cohesin subunit, are also required for high-level meiotic DNA breakage and recombination. Unexpectedly, these kinases also mediate phosphorylation of a different meiosis-specific cohesin subunit Rec11. This phosphorylation in turn leads to loading of linear element proteins Rec10 and Rec27, related to synaptonemal complex proteins of other species, and thereby promotes DNA breakage and recombination. Our results provide novel insights into the regulation of chromosomal features required for crossing-over and successful reproduction. The mammalian functional homolog of Rec11 (STAG3) is also phosphorylated during meiosis and appears to be required for fertility, indicating wide conservation of the meiotic events reported here.
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Affiliation(s)
- Naina Phadnis
- Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Lubos Cipak
- Max F. Perutz Laboratories, University of Vienna, Vienna, Austria
- Cancer Research Institute, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Silvia Polakova
- Max F. Perutz Laboratories, University of Vienna, Vienna, Austria
| | - Randy W. Hyppa
- Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Ingrid Cipakova
- Cancer Research Institute, Slovak Academy of Sciences, Bratislava, Slovakia
| | | | - Lucia Karvaiova
- Department of Genetics, Comenius University, Bratislava, Slovakia
| | - Karl Mechtler
- Research Institute of Molecular Pathology, Vienna, Austria
| | - Gerald R. Smith
- Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Juraj Gregan
- Max F. Perutz Laboratories, University of Vienna, Vienna, Austria
- Research Institute of Molecular Pathology, Vienna, Austria
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45
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Liu LN, Wang ZQ, Zhang X, Jiang P, Zhang ZF, Zhang GY, Cui J. Analysis of structure, function and epitopes of Spirometra erinaceieuropaei casein kinase I. Trop Biomed 2015; 32:167-175. [PMID: 25801267] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Spirometra erinaceieuropaei casein kinase I (SeCKI) was analyzed using bioinformatical methods to predict its structure and function based on the deduced amino acid sequence from full length cDNA sequence of SeCKI gene with online sites and software programs. The longest open reading frame contains 448 amino acids, 50 kDa and theoretical pI of 4.73, with a complete tubulin domain, a SMART tubulin_C domain and a low complexity region. SeCKI has no signal sequence and no transmembrane domain, but is predicted to be located extracellularly. The secondary structure of SeCKI contains 12 α-helixes, 11 β-strands and 22 coils. SeCKI had 19 potential antigenic epitopes and 25 HLA-I restricted epitopes. Based on phylogenetic analysis of SeCKI sequence, S. erinaceieuropaei has the closest evolutionary status with Hymenolepis microstoma. Information from this study could provide important insights into the identification of diagnostic antigens and molecular targets of anti-sparganum drugs.
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Affiliation(s)
- L N Liu
- Department of Parasitology, Medical College, Zhengzhou University, 40 Daxue Road, Zhengzhou 450052, China
| | - Z Q Wang
- Department of Parasitology, Medical College, Zhengzhou University, 40 Daxue Road, Zhengzhou 450052, China
| | - X Zhang
- Department of Parasitology, Medical College, Zhengzhou University, 40 Daxue Road, Zhengzhou 450052, China
| | - P Jiang
- Department of Parasitology, Medical College, Zhengzhou University, 40 Daxue Road, Zhengzhou 450052, China
| | - Z F Zhang
- Department of Parasitology, Medical College, Zhengzhou University, 40 Daxue Road, Zhengzhou 450052, China
| | - G Y Zhang
- Department of Parasitology, Medical College, Zhengzhou University, 40 Daxue Road, Zhengzhou 450052, China
| | - J Cui
- Department of Parasitology, Medical College, Zhengzhou University, 40 Daxue Road, Zhengzhou 450052, China
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46
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Abdel-Fattah W, Jablonowski D, Di Santo R, Thüring KL, Scheidt V, Hammermeister A, ten Have S, Helm M, Schaffrath R, Stark MJR. Phosphorylation of Elp1 by Hrr25 is required for elongator-dependent tRNA modification in yeast. PLoS Genet 2015; 11:e1004931. [PMID: 25569479 PMCID: PMC4287497 DOI: 10.1371/journal.pgen.1004931] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 12/01/2014] [Indexed: 12/26/2022] Open
Abstract
Elongator is a conserved protein complex comprising six different polypeptides that has been ascribed a wide range of functions, but which is now known to be required for modification of uridine residues in the wobble position of a subset of tRNAs in yeast, plants, worms and mammals. In previous work, we showed that Elongator's largest subunit (Elp1; also known as Iki3) was phosphorylated and implicated the yeast casein kinase I Hrr25 in Elongator function. Here we report identification of nine in vivo phosphorylation sites within Elp1 and show that four of these, clustered close to the Elp1 C-terminus and adjacent to a region that binds tRNA, are important for Elongator's tRNA modification function. Hrr25 protein kinase directly modifies Elp1 on two sites (Ser-1198 and Ser-1202) and through analyzing non-phosphorylatable (alanine) and acidic, phosphomimic substitutions at Ser-1198, Ser-1202 and Ser-1209, we provide evidence that phosphorylation plays a positive role in the tRNA modification function of Elongator and may regulate the interaction of Elongator both with its accessory protein Kti12 and with Hrr25 kinase. tRNA molecules function as adapters in protein synthesis, bringing amino acids to the ribosome and reading the genetic code through codon-anticodon base pairing. When the tRNA contains a uridine residue in the “wobble position” of its anticodon, which base-pairs with purine residues in the third position of a cognate codon, it is almost always chemically modified and modification is required for efficient decoding. In eukaryotic cells, these wobble uridine modifications require a conserved protein complex called Elongator. Our work shows that Elp1, Elongator's largest subunit, is phosphorylated on several sites. By blocking phosphorylation at these positions using mutations, we identified four phosphorylation sites that are important for Elongator's role in tRNA modification. We have also shown that Hrr25 protein kinase, a member of the casein kinase I (CKI) family, is responsible for modification of two of the sites that are important for Elongator function. Phosphorylation appears to affect interaction of the Elongator complex both with its kinase (Hrr25) and with Kti12, an accessory protein previously implicated in Elongator function. Our studies imply that Elp1 phosphorylation plays a positive role in Elongator-mediated tRNA modification and raise the possibility that wobble uridine modification may be regulated, representing a potential translational control mechanism.
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Affiliation(s)
- Wael Abdel-Fattah
- Centre for Gene Regulation & Expression, College of Life Sciences, University of Dundee, Dundee, United Kingdom
- Institut für Biologie, FG Mikrobiologie, Universität Kassel, Germany
| | | | - Rachael Di Santo
- Centre for Gene Regulation & Expression, College of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Kathrin L. Thüring
- Institut für Pharmazie und Biochemie, Johannes Gutenberg-Universität Mainz, Germany
| | - Viktor Scheidt
- Institut für Biologie, FG Mikrobiologie, Universität Kassel, Germany
| | | | - Sara ten Have
- Centre for Gene Regulation & Expression, College of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Mark Helm
- Institut für Pharmazie und Biochemie, Johannes Gutenberg-Universität Mainz, Germany
| | - Raffael Schaffrath
- Institut für Biologie, FG Mikrobiologie, Universität Kassel, Germany
- Department of Genetics, University of Leicester, Leicester, United Kingdom
- * E-mail: (RS); (MJRS)
| | - Michael J. R. Stark
- Centre for Gene Regulation & Expression, College of Life Sciences, University of Dundee, Dundee, United Kingdom
- * E-mail: (RS); (MJRS)
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Schneider RK, Ademà V, Heckl D, Järås M, Mallo M, Lord AM, Chu LP, McConkey ME, Kramann R, Mullally A, Bejar R, Solé F, Ebert BL. Role of casein kinase 1A1 in the biology and targeted therapy of del(5q) MDS. Cancer Cell 2014; 26:509-20. [PMID: 25242043 PMCID: PMC4199102 DOI: 10.1016/j.ccr.2014.08.001] [Citation(s) in RCA: 141] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 06/09/2014] [Accepted: 08/01/2014] [Indexed: 01/16/2023]
Abstract
The casein kinase 1A1 gene (CSNK1A1) is a putative tumor suppressor gene located in the common deleted region for del(5q) myelodysplastic syndrome (MDS). We generated a murine model with conditional inactivation of Csnk1a1 and found that Csnk1a1 haploinsufficiency induces hematopoietic stem cell expansion and a competitive repopulation advantage, whereas homozygous deletion induces hematopoietic stem cell failure. Based on this finding, we found that heterozygous inactivation of Csnk1a1 sensitizes cells to a CSNK1 inhibitor relative to cells with two intact alleles. In addition, we identified recurrent somatic mutations in CSNK1A1 on the nondeleted allele of patients with del(5q) MDS. These studies demonstrate that CSNK1A1 plays a central role in the biology of del(5q) MDS and is a promising therapeutic target.
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Affiliation(s)
- Rebekka K Schneider
- Division of Hematology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Vera Ademà
- Josep Carreras Leukaemia Research Institute (IJC), ICO-Hospital Germans Trias i Pujol, Universitat Autònoma de Barcelona (UAB), 08916 Badalona, Spain; Laboratori de Citogenètica Molecular, Servei de Patologia, Hospital del Mar, GRETNHE, IMIM (Hospital del Mar Research Institute), 08003 Barcelona, Spain; Departament de Biologia Cellular, Fisiologia i Immunologia, Facultat de Biociències, Universitat Autonoma de Barcelona, 08193 Barcelona, Spain
| | - Dirk Heckl
- Division of Hematology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Marcus Järås
- Division of Hematology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Mar Mallo
- Josep Carreras Leukaemia Research Institute (IJC), ICO-Hospital Germans Trias i Pujol, Universitat Autònoma de Barcelona (UAB), 08916 Badalona, Spain; Laboratori de Citogenètica Molecular, Servei de Patologia, Hospital del Mar, GRETNHE, IMIM (Hospital del Mar Research Institute), 08003 Barcelona, Spain
| | - Allegra M Lord
- Division of Hematology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Lisa P Chu
- Division of Hematology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Marie E McConkey
- Division of Hematology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Rafael Kramann
- Renal Division, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Ann Mullally
- Division of Hematology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Rafael Bejar
- Division of Hematology and Oncology, Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093-0820, USA
| | - Francesc Solé
- Josep Carreras Leukaemia Research Institute (IJC), ICO-Hospital Germans Trias i Pujol, Universitat Autònoma de Barcelona (UAB), 08916 Badalona, Spain; Laboratori de Citogenètica Molecular, Servei de Patologia, Hospital del Mar, GRETNHE, IMIM (Hospital del Mar Research Institute), 08003 Barcelona, Spain
| | - Benjamin L Ebert
- Division of Hematology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA; Broad Institute of Harvard University and Massachusetts Institute of Technology, Cambridge, MA 02142, USA.
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48
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Kinoshita Y, Hori M, Taguchi M, Fukumoto S. Functional analysis of mutant FAM20C in Raine syndrome with FGF23-related hypophosphatemia. Bone 2014; 67:145-51. [PMID: 25026495 DOI: 10.1016/j.bone.2014.07.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Revised: 06/12/2014] [Accepted: 07/06/2014] [Indexed: 11/17/2022]
Abstract
Raine syndrome is an autosomal recessive disorder characterized by generalized osteosclerosis with periosteal bone formation and a distinctive facial phenotype. Either homozygous or compound heterozygous mutations in family with sequence similarity 20, member C (FAM20C) have been reported to cause this syndrome. Recently, it was reported that fibroblast growth factor 23 (FGF23)-related hypophosphatemia was found in patients with non-lethal Raine syndrome, and Fam20c conditional knockout mice presented Fgf23-related hypophosphatemic rickets. To clarify the mechanism of how FAM20C regulates FGF23, we performed functional analysis of mutant FAM20C proteins reported in Raine syndrome. We analyzed 6 mutant FAM20C proteins (T268M, P328S, R408W, D451N, D478A, and R549W) for their distributions, kinase activities, and effects on dentin matrix protein (DMP1) promoter activity. We also analyzed the effect of Fam20c knockdown on Dmp1 and Fgf23 mRNA levels in UMR-106 cells. As a result, all the mutant FAM20C proteins showed decreased kinase activities compared to wild-type (WT) FAM20C, and most of them also showed impaired secretion. Overexpression of WT FAM20C increased DMP1 promoter activity in Saos-2 cells while mutant FAM20C did not. Fam20c knockdown decreased Dmp1 mRNA and increased Fgf23 mRNA in UMR-106 cells. In conclusion, our results suggest that FAM20C suppresses FGF23 production by enhancing DMP1 expression, and inactivating mutations in FAM20C cause FGF23-related hypophosphatemia by decreasing transcription of DMP1.
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Affiliation(s)
- Yuka Kinoshita
- Division of Nephrology & Endocrinology, Department of Medicine, University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Michiko Hori
- Division of Nephrology & Endocrinology, Department of Medicine, University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Manabu Taguchi
- Division of Nephrology & Endocrinology, Department of Medicine, University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Seiji Fukumoto
- Division of Nephrology & Endocrinology, Department of Medicine, University of Tokyo Hospital, Tokyo 113-8655, Japan.
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49
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Takeyari S, Yamamoto T, Kinoshita Y, Fukumoto S, Glorieux FH, Michigami T, Hasegawa K, Kitaoka T, Kubota T, Imanishi Y, Shimotsuji T, Ozono K. Hypophosphatemic osteomalacia and bone sclerosis caused by a novel homozygous mutation of the FAM20C gene in an elderly man with a mild variant of Raine syndrome. Bone 2014; 67:56-62. [PMID: 24982027 DOI: 10.1016/j.bone.2014.06.026] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Revised: 06/19/2014] [Accepted: 06/20/2014] [Indexed: 01/02/2023]
Abstract
BACKGROUND Hypophosphatemia and increased serum fibroblast growth factor 23 (FGF23) levels have been reported in young brothers with compound heterozygous mutations for the FAM20C gene; however, rickets was not observed in these cases. We report an adult case of Raine syndrome accompanying hypophosphatemic osteomalacia with a homozygous FAM20C mutation (R408W) associated with increased periosteal bone formation in the long bones and an increase in bone mineral density in the femoral neck. CASE The patient, a 61-year-old man, was born from a cousin-to-cousin marriage. A short stature and severe dental demineralization were reported at an elementary school age. Hypophosphatemia was noted inadvertently at 27years old, at which time he started to take an active vitamin D metabolite (alphacalcidol) and phosphate. He also manifested ossification of the posterior longitudinal ligament. On bone biopsy performed at the age of 41years, we found severe osteomalacia surrounding osteocytes, which appeared to be an advanced form of periosteocytic hypomineralized lesions compared to those reported in patients with X-linked hypophosphatemic rickets. Laboratory data at 61years of age revealed markedly increased serum intact-FGF23 levels, which were likely to be the cause of hypophosphatemia and the decreased level of 1,25(OH)2D. We recently identified a homozygous FAM20C mutation, which was R408W, in this patient. When expressed in HEK293 cells, the R408W mutant protein exhibited impaired kinase activity and secretion. DISCUSSION Our findings suggest that certain homozygous FAM20C mutations can cause FGF23-related hypophosphatemic osteomalacia and indicate the multiple roles of FAM20C in bone.
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Affiliation(s)
- Shinji Takeyari
- Department of Pediatrics, Minoh City Hospital, Osaka 562-8562, Japan
| | - Takehisa Yamamoto
- Department of Pediatrics, Minoh City Hospital, Osaka 562-8562, Japan.
| | - Yuka Kinoshita
- Division of Nephrology and Endocrinology, Department of Medicine, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Seiji Fukumoto
- Division of Nephrology and Endocrinology, Department of Medicine, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Francis H Glorieux
- Genetics Unit, Shriners Hospitals for Children, Montreal H3G 1A6, Canada
| | - Toshimi Michigami
- Department of Bone and Mineral Research, Osaka Medical Center and Research Institute for Maternal and Child Health, Osaka 594-1011, Japan
| | - Kosei Hasegawa
- Department of Pediatrics, Okayama University Hospital, Okayama 700-8558, Japan
| | - Taichi Kitaoka
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan
| | - Takuo Kubota
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan
| | - Yasuo Imanishi
- Department of Metabolism, Endocrinology and Molecular Medicine, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | | | - Keiichi Ozono
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan
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Hida A, Kitamura S, Katayose Y, Kato M, Ono H, Kadotani H, Uchiyama M, Ebisawa T, Inoue Y, Kamei Y, Okawa M, Takahashi K, Mishima K. Screening of clock gene polymorphisms demonstrates association of a PER3 polymorphism with morningness-eveningness preference and circadian rhythm sleep disorder. Sci Rep 2014; 4:6309. [PMID: 25201053 PMCID: PMC4158573 DOI: 10.1038/srep06309] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 08/19/2014] [Indexed: 01/01/2023] Open
Abstract
A system of self-sustained biological clocks controls the 24-h rhythms of behavioral and physiological processes such as the sleep-wake cycle. The circadian clock system is regulated by transcriptional and translational negative feedback loops of multiple clock genes. Polymorphisms in circadian clock genes have been associated with morningness-eveningness (diurnal) preference, familial advanced sleep phase type (ASPT), and delayed sleep phase type (DSPT). We genotyped single-nucleotide polymorphisms in circadian clock genes in 182 DSPT individuals, 67 free-running type (FRT) individuals, and 925 controls. The clock gene polymorphisms were tested for associations with diurnal preference and circadian rhythm sleep disorder (CRSD) phenotypes. The PER3 polymorphism (rs228697) was significantly associated with diurnal preference and the FRT phenotype. The minor allele of rs228697 was more prevalent in evening types than in morning types (sex-adjusted odds ratio (OR), 2.483, Bonferroni-corrected P = 0.012) and in FRT individuals compared with the controls (age- and sex-adjusted OR, 2.021, permutated P = 0.017). Our findings support the notion that PER3 polymorphisms could be a potential genetic marker for an individual's circadian and sleep phenotypes.
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Affiliation(s)
- Akiko Hida
- Department of Psychophysiology, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo 187-8553, Japan
| | - Shingo Kitamura
- Department of Psychophysiology, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo 187-8553, Japan
| | - Yasuko Katayose
- Department of Psychophysiology, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo 187-8553, Japan
| | - Mie Kato
- Department of Psychophysiology, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo 187-8553, Japan
| | - Hiroko Ono
- Department of Psychophysiology, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo 187-8553, Japan
| | - Hiroshi Kadotani
- Department of Psychiatry, Shiga University of Medical Science, Otsu, Shiga 520-2192, Japan
| | - Makoto Uchiyama
- Department of Psychiatry, Nihon University School of Medicine, Itabashi, Tokyo 173-8610, Japan
| | - Takashi Ebisawa
- Department of Psychiatry, Tokyo Metropolitan Police Hospital, Nakano, Tokyo 164-8541, Japan
| | - Yuichi Inoue
- Department of Somnology, Tokyo Medical University, Shinjuku, Tokyo 160-8402, Japan
- Yoyogi Sleep Disorder Center, Shibuya, Tokyo 151-0053, Japan
| | - Yuichi Kamei
- Department of Laboratory Medicine, National Center Hospital, National Center of Neurology and Psychiatry, Kodaira, Tokyo 187-8551, Japan
| | - Masako Okawa
- Japan Foundation for Neuroscience and Mental Health, Kodaira, Tokyo 187-8551, Japan
| | - Kiyohisa Takahashi
- Japan Foundation for Neuroscience and Mental Health, Kodaira, Tokyo 187-8551, Japan
| | - Kazuo Mishima
- Department of Psychophysiology, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo 187-8553, Japan
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