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Karl K, Del Piccolo N, Light T, Roy T, Deduja P, Ursachi VC, Fafilek B, Krejci P, Hristova K. Ligand bias underlies differential signaling of multiple FGFs via FGFR1. eLife 2024; 12:RP88144. [PMID: 38568193 PMCID: PMC10990489 DOI: 10.7554/elife.88144] [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] [Indexed: 04/05/2024] Open
Abstract
The differential signaling of multiple FGF ligands through a single fibroblast growth factor (FGF) receptor (FGFR) plays an important role in embryonic development. Here, we use quantitative biophysical tools to uncover the mechanism behind differences in FGFR1c signaling in response to FGF4, FGF8, and FGF9, a process which is relevant for limb bud outgrowth. We find that FGF8 preferentially induces FRS2 phosphorylation and extracellular matrix loss, while FGF4 and FGF9 preferentially induce FGFR1c phosphorylation and cell growth arrest. Thus, we demonstrate that FGF8 is a biased FGFR1c ligand, as compared to FGF4 and FGF9. Förster resonance energy transfer experiments reveal a correlation between biased signaling and the conformation of the FGFR1c transmembrane domain dimer. Our findings expand the mechanistic understanding of FGF signaling during development and bring the poorly understood concept of receptor tyrosine kinase ligand bias into the spotlight.
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Affiliation(s)
- Kelly Karl
- Department of Materials Science and Engineering, Institute for NanoBioTechnology, and Program in Molecular Biophysics, Johns Hopkins UniversityBaltimoreUnited States
| | - Nuala Del Piccolo
- Department of Materials Science and Engineering, Institute for NanoBioTechnology, and Program in Molecular Biophysics, Johns Hopkins UniversityBaltimoreUnited States
| | - Taylor Light
- Department of Materials Science and Engineering, Institute for NanoBioTechnology, and Program in Molecular Biophysics, Johns Hopkins UniversityBaltimoreUnited States
| | - Tanaya Roy
- Department of Materials Science and Engineering, Institute for NanoBioTechnology, and Program in Molecular Biophysics, Johns Hopkins UniversityBaltimoreUnited States
| | - Pooja Deduja
- Department of Biology, Faculty of Medicine, Masaryk UniversityBrnoCzech Republic
- Institute of Animal Physiology and Genetics of the CASBrnoCzech Republic
| | - Vlad-Constantin Ursachi
- Department of Biology, Faculty of Medicine, Masaryk UniversityBrnoCzech Republic
- International Clinical Research Center, St. Anne's University HospitalBrnoCzech Republic
| | - Bohumil Fafilek
- Department of Biology, Faculty of Medicine, Masaryk UniversityBrnoCzech Republic
- Institute of Animal Physiology and Genetics of the CASBrnoCzech Republic
- International Clinical Research Center, St. Anne's University HospitalBrnoCzech Republic
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk UniversityBrnoCzech Republic
- Institute of Animal Physiology and Genetics of the CASBrnoCzech Republic
- International Clinical Research Center, St. Anne's University HospitalBrnoCzech Republic
| | - Kalina Hristova
- Department of Materials Science and Engineering, Institute for NanoBioTechnology, and Program in Molecular Biophysics, Johns Hopkins UniversityBaltimoreUnited States
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Csukasi F, Bosakova M, Barta T, Martin JH, Arcedo J, Barad M, Rico-Llanos GA, Zieba J, Becerra J, Krejci P, Duran I, Krakow D. Skeletal diseases caused by mutations in PTH1R show aberrant differentiation of skeletal progenitors due to dysregulation of DEPTOR. Front Cell Dev Biol 2023; 10:963389. [PMID: 36726589 PMCID: PMC9885499 DOI: 10.3389/fcell.2022.963389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 12/27/2022] [Indexed: 01/18/2023] Open
Abstract
Alterations in the balance between skeletogenesis and adipogenesis is a pathogenic feature in multiple skeletal disorders. Clinically, enhanced bone marrow adiposity in bones impairs mobility and increases fracture risk, reducing the quality of life of patients. The molecular mechanism that underlies the balance between skeletogenesis and adipogenesis is not completely understood but alterations in skeletal progenitor cells' differentiation pathway plays a key role. We recently demonstrated that parathyroid hormone (PTH)/PTH-related peptide (PTHrP) control the levels of DEPTOR, an inhibitor of the mechanistic target of rapamycin (mTOR), and that DEPTOR levels are altered in different skeletal diseases. Here, we show that mutations in the PTH receptor-1 (PTH1R) alter the differentiation of skeletal progenitors in two different skeletal genetic disorders and lead to accumulation of fat or cartilage in bones. Mechanistically, DEPTOR controls the subcellular localization of TAZ (transcriptional co-activator with a PDZ-binding domain), a transcriptional regulator that governs skeletal stem cells differentiation into either bone and fat. We show that DEPTOR regulation of TAZ localization is achieved through the control of Dishevelled2 (DVL2) phosphorylation. Depending on nutrient availability, DEPTOR directly interacts with PTH1R to regulate PTH/PTHrP signaling or it forms a complex with TAZ, to prevent its translocation to the nucleus and therefore inhibit its transcriptional activity. Our data point DEPTOR as a key molecule in skeletal progenitor differentiation; its dysregulation under pathologic conditions results in aberrant bone/fat balance.
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Affiliation(s)
- Fabiana Csukasi
- Department of Orthopaedic Surgery, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA, United States
- Laboratory of Bioengineering and Tissue Regeneration (LABRET), Department of Cell Biology, Genetics and Physiology, University of Malaga, Institute of Biomedical Research in Malaga (IBIMA-Plataforma BIONAND), Malaga, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Michaela Bosakova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czechia
- Institute of Animal Physiology and Genetics of the CAS, Brno, Czechia
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czechia
| | - Tomas Barta
- Institute of Animal Physiology and Genetics of the CAS, Brno, Czechia
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Jorge H Martin
- Department of Orthopaedic Surgery, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA, United States
| | - Jesus Arcedo
- Laboratory of Bioengineering and Tissue Regeneration (LABRET), Department of Cell Biology, Genetics and Physiology, University of Malaga, Institute of Biomedical Research in Malaga (IBIMA-Plataforma BIONAND), Malaga, Spain
| | - Maya Barad
- Department of Orthopaedic Surgery, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA, United States
| | - Gustavo A Rico-Llanos
- Laboratory of Bioengineering and Tissue Regeneration (LABRET), Department of Cell Biology, Genetics and Physiology, University of Malaga, Institute of Biomedical Research in Malaga (IBIMA-Plataforma BIONAND), Malaga, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Jennifer Zieba
- Department of Orthopaedic Surgery, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA, United States
| | - Jose Becerra
- Laboratory of Bioengineering and Tissue Regeneration (LABRET), Department of Cell Biology, Genetics and Physiology, University of Malaga, Institute of Biomedical Research in Malaga (IBIMA-Plataforma BIONAND), Malaga, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czechia
- Institute of Animal Physiology and Genetics of the CAS, Brno, Czechia
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czechia
| | - Ivan Duran
- Department of Orthopaedic Surgery, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA, United States
- Laboratory of Bioengineering and Tissue Regeneration (LABRET), Department of Cell Biology, Genetics and Physiology, University of Malaga, Institute of Biomedical Research in Malaga (IBIMA-Plataforma BIONAND), Malaga, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Deborah Krakow
- Department of Orthopaedic Surgery, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA, United States
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Brno, Czechia
- Department of Human Genetics, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA, United States
- Department of Obstetrics and Gynecology, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA, United States
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3
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Pesl M, Verescakova H, Skutkova L, Strenkova J, Krejci P. A registry of achondroplasia: a 6-year experience from the Czechia and Slovak Republic. Orphanet J Rare Dis 2022; 17:229. [PMID: 35710503 PMCID: PMC9205086 DOI: 10.1186/s13023-022-02374-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 05/29/2022] [Indexed: 11/20/2022] Open
Abstract
Background Achondroplasia (ACH) is one of the most prevalent genetic forms of short-limbed skeletal dysplasia, caused by gain-of-function mutations in the receptor tyrosine kinase FGFR3. In August 2021, the C-type natriuretic peptide (CNP) analog vosoritide was approved for the treatment of ACH. A total of six other inhibitors of FGFR3 signaling are currently undergoing clinical evaluation for ACH. This progress creates an opportunity for children with ACH, who may gain early access to the treatment by entering clinical trials before the closure of their epiphyseal growth plates and cessation of growth. Pathophysiology associated with the ACH, however, demands a long observational period before admission to the interventional trial. Public patient registries can facilitate the process by identification of patients suitable for treatment and collecting the data necessary for the trial entry.
Results In 2015, we established the prospective ACH registry in the Czechia and the Slovak Republic (http://www.achondroplasia-registry.cz). Patient data is collected through pediatric practitioners and other relevant specialists. After informed consent is given, the data is entered to the online TrialDB system and stored in the Oracle 9i database. The initial cohort included 51 ACH children (average age 8.5 years, range 3 months to 14 years). The frequency of selected neurological, orthopedic, or ORL diagnoses is also recorded. In 2015–2021, a total of 89 measurements of heights, weights, and other parameters were collected. The individual average growth rate was calculated and showed values without exception in the lower decile for the appropriate age. Evidence of paternal age effect was found, with 58.7% of ACH fathers older than the general average paternal age and 43.5% of fathers older by two or more years. One ACH patient had orthopedic limb extension and one patient received growth hormone therapy. Low blood pressure or renal impairment were not found in any patient. Conclusion The registry collected the clinical information of 51 pediatric ACH patients during its 6 years of existence, corresponding to ~ 60% of ACH patients living in the Czechia and Slovak Republic. The registry continues to collect ACH patient data with annual frequency to monitor the growth and other parameters in preparation for future therapy. Supplementary Information The online version contains supplementary material available at 10.1186/s13023-022-02374-x.
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Affiliation(s)
- Martin Pesl
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne University Hospital, Brno, Czech Republic.,1st Department of Internal Medicine, Cardioangiology, St. Anne University Hospital and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Hana Verescakova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Linda Skutkova
- Department of Pediatrics, University Hospital Brno, Brno, Czech Republic
| | - Jana Strenkova
- Institute of Biostatistics and Analyses, Masaryk University, Brno, Czech Republic
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic. .,International Clinical Research Center, St. Anne University Hospital, Brno, Czech Republic. .,Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czech Republic.
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4
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Zieba J, Forlenza KN, Heard K, Martin JH, Bosakova M, Cohn DH, Robertson SP, Krejci P, Krakow D. Intervertebral disc degeneration is rescued by TGFβ/BMP signaling modulation in an ex vivo filamin B mouse model. Bone Res 2022; 10:37. [PMID: 35474298 PMCID: PMC9042866 DOI: 10.1038/s41413-022-00200-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 11/01/2021] [Accepted: 01/06/2022] [Indexed: 12/14/2022] Open
Abstract
Spondylocarpotarsal syndrome (SCT) is a rare musculoskeletal disorder characterized by short stature and vertebral, carpal, and tarsal fusions resulting from biallelic nonsense mutations in the gene encoding filamin B (FLNB). Utilizing a FLNB knockout mouse, we showed that the vertebral fusions in SCT evolved from intervertebral disc (IVD) degeneration and ossification of the annulus fibrosus (AF), eventually leading to full trabecular bone formation. This resulted from alterations in the TGFβ/BMP signaling pathway that included increased canonical TGFβ and noncanonical BMP signaling. In this study, the role of FLNB in the TGFβ/BMP pathway was elucidated using in vitro, in vivo, and ex vivo treatment methodologies. The data demonstrated that FLNB interacts with inhibitory Smads 6 and 7 (i-Smads) to regulate TGFβ/BMP signaling and that loss of FLNB produces increased TGFβ receptor activity and decreased Smad 1 ubiquitination. Through the use of small molecule inhibitors in an ex vivo spine model, TGFβ/BMP signaling was modulated to design a targeted treatment for SCT and disc degeneration. Inhibition of canonical and noncanonical TGFβ/BMP pathway activity restored Flnb-/- IVD morphology. These most effective improvements resulted from specific inhibition of TGFβ and p38 signaling activation. FLNB acts as a bridge for TGFβ/BMP signaling crosstalk through i-Smads and is key for the critical balance in TGFβ/BMP signaling that maintains the IVD. These findings further our understanding of IVD biology and reveal new molecular targets for disc degeneration as well as congenital vertebral fusion disorders.
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Affiliation(s)
- Jennifer Zieba
- Department of Orthopedic Surgery, Los Angeles, CA, 90095, USA
| | | | - Kelly Heard
- Department of Orthopedic Surgery, Los Angeles, CA, 90095, USA
| | - Jorge H Martin
- Department of Orthopedic Surgery, Los Angeles, CA, 90095, USA
| | - Michaela Bosakova
- Department of Biology, Faculty of Medicine, Masaryk University, 62500, Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital, 65691, Brno, Czech Republic
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200, Brno, Czech Republic
| | - Daniel H Cohn
- Department of Orthopedic Surgery, Los Angeles, CA, 90095, USA
- Department of Molecular Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Stephen P Robertson
- Department of Women's and Children's Health, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, 62500, Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital, 65691, Brno, Czech Republic
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200, Brno, Czech Republic
| | - Deborah Krakow
- Department of Orthopedic Surgery, Los Angeles, CA, 90095, USA.
- Department of Human Genetics, Los Angeles, CA, 90095, USA.
- Department of Obstetrics and Gynecology, Los Angeles, CA, 90095, USA.
- Department of Pediatrics, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA, 90095, USA.
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5
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Duran I, Zieba J, Csukasi F, Martin JH, Wachtell D, Barad M, Dawson B, Fafilek B, Jacobsen CM, Ambrose CG, Cohn DH, Krejci P, Lee BH, Krakow D. 4-PBA Treatment Improves Bone Phenotypes in the Aga2 Mouse Model of Osteogenesis Imperfecta. J Bone Miner Res 2022; 37:675-686. [PMID: 34997935 PMCID: PMC9018561 DOI: 10.1002/jbmr.4501] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 12/18/2021] [Accepted: 12/21/2021] [Indexed: 12/01/2022]
Abstract
Osteogenesis imperfecta (OI) is a genetically heterogenous disorder most often due to heterozygosity for mutations in the type I procollagen genes, COL1A1 or COL1A2. The disorder is characterized by bone fragility leading to increased fracture incidence and long-bone deformities. Although multiple mechanisms underlie OI, endoplasmic reticulum (ER) stress as a cellular response to defective collagen trafficking is emerging as a contributor to OI pathogenesis. Herein, we used 4-phenylbutiric acid (4-PBA), an established chemical chaperone, to determine if treatment of Aga2+/- mice, a model for moderately severe OI due to a Col1a1 structural mutation, could attenuate the phenotype. In vitro, Aga2+/- osteoblasts show increased protein kinase RNA-like endoplasmic reticulum kinase (PERK) activation protein levels, which improved upon treatment with 4-PBA. The in vivo data demonstrate that a postweaning 5-week 4-PBA treatment increased total body length and weight, decreased fracture incidence, increased femoral bone volume fraction (BV/TV), and increased cortical thickness. These findings were associated with in vivo evidence of decreased bone-derived protein levels of the ER stress markers binding immunoglobulin protein (BiP), CCAAT/-enhancer-binding protein homologous protein (CHOP), and activating transcription factor 4 (ATF4) as well as increased levels of the autophagosome marker light chain 3A/B (LC3A/B). Genetic ablation of CHOP in Aga2+/- mice resulted in increased severity of the Aga2+/- phenotype, suggesting that the reduction in CHOP observed in vitro after treatment is a consequence rather than a cause of reduced ER stress. These findings suggest the potential use of chemical chaperones as an adjunct treatment for forms of OI associated with ER stress. © 2022 The Authors. Journal of Bone and Mineral Research published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Ivan Duran
- Department of Orthopaedic Surgery, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA, USA.,Laboratory of Bioengineering and Tissue Regeneration (LABRET), Department of Cell Biology, Genetics and Physiology, University of Málaga, Institute of Biomedical Research in Malaga (IBIMA), Málaga, Spain.,Networking Biomedical Research Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Andalusian Centre for Nanomedicine and Biotechnology (BIONAND), Málaga, Spain
| | - Jennifer Zieba
- Department of Orthopaedic Surgery, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA, USA
| | - Fabiana Csukasi
- Department of Orthopaedic Surgery, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA, USA.,Laboratory of Bioengineering and Tissue Regeneration (LABRET), Department of Cell Biology, Genetics and Physiology, University of Málaga, Institute of Biomedical Research in Malaga (IBIMA), Málaga, Spain.,Networking Biomedical Research Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Andalusian Centre for Nanomedicine and Biotechnology (BIONAND), Málaga, Spain
| | - Jorge H Martin
- Department of Orthopaedic Surgery, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA, USA
| | - Davis Wachtell
- Department of Orthopaedic Surgery, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA, USA
| | - Maya Barad
- Department of Orthopaedic Surgery, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA, USA
| | - Brian Dawson
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Bohumil Fafilek
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Christina M Jacobsen
- Divisions of Endocrinology and Genetics and Genomics, Boston Children's Hospital, Boston, MA, USA.,Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Catherine G Ambrose
- Department of Orthopaedic Surgery, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Daniel H Cohn
- Department of Orthopaedic Surgery, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA, USA.,Department of Molecular Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, CA, USA
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Brendan H Lee
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Deborah Krakow
- Department of Orthopaedic Surgery, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA, USA.,Department of Human Genetics, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA, USA.,Department of Obstetrics and Gynecology, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA, USA.,Department of Pediatrics, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, CA, USA
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6
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Dave Z, Vondálová Blanářová O, Čada Š, Janovská P, Zezula N, Běhal M, Hanáková K, Ganji SR, Krejci P, Gömöryová K, Peschelová H, Šmída M, Zdráhal Z, Pavlová Š, Kotašková J, Pospíšilová Š, Bryja V. Lyn Phosphorylates and Controls ROR1 Surface Dynamics During Chemotaxis of CLL Cells. Front Cell Dev Biol 2022; 10:838871. [PMID: 35295854 PMCID: PMC8918536 DOI: 10.3389/fcell.2022.838871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 02/09/2022] [Indexed: 11/29/2022] Open
Abstract
Chronic lymphocytic leukemia (CLL) and mantle cell lymphoma (MCL) are malignancies characterized by the dependence on B-cell receptor (BCR) signaling and by the high expression of ROR1, the cell surface receptor for Wnt-5a. Both, BCR and ROR1 are therapeutic targets in these diseases and the understanding of their mutual cross talk is thus of direct therapeutic relevance. In this study we analyzed the role of Lyn, a kinase from the Src family participating in BCR signaling, as a mediator of the BCR-ROR1 crosstalk. We confirm the functional interaction between Lyn and ROR1 and demonstrate that Lyn kinase efficiently phosphorylates ROR1 in its kinase domain and aids the recruitment of the E3 ligase c-CBL. We show that ROR1 surface dynamics in migrating primary CLL cells as well as chemotactic properties of CLL cells were inhibited by Lyn inhibitor dasatinib. Our data establish Lyn-mediated phosphorylation of ROR1 as a point of crosstalk between BCR and ROR1 signaling pathways.
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Affiliation(s)
- Zankruti Dave
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Olga Vondálová Blanářová
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Štěpán Čada
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Pavlína Janovská
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Nikodém Zezula
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Martin Běhal
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Kateřina Hanáková
- Central European Institute of Technology (CEITEC), Masaryk University, Brno, Czech Republic
| | - Sri Ranjani Ganji
- Central European Institute of Technology (CEITEC), Masaryk University, Brno, Czech Republic
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czech Republic
| | - Kristína Gömöryová
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Helena Peschelová
- Central European Institute of Technology (CEITEC), Masaryk University, Brno, Czech Republic
| | - Michal Šmída
- Central European Institute of Technology (CEITEC), Masaryk University, Brno, Czech Republic
- Department of Internal Medicine—Hematology and Oncology, University Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Zbyněk Zdráhal
- Central European Institute of Technology (CEITEC), Masaryk University, Brno, Czech Republic
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Šárka Pavlová
- Central European Institute of Technology (CEITEC), Masaryk University, Brno, Czech Republic
- Department of Internal Medicine—Hematology and Oncology, University Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Jana Kotašková
- Central European Institute of Technology (CEITEC), Masaryk University, Brno, Czech Republic
- Department of Internal Medicine—Hematology and Oncology, University Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Šárka Pospíšilová
- Central European Institute of Technology (CEITEC), Masaryk University, Brno, Czech Republic
- Department of Internal Medicine—Hematology and Oncology, University Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Vítězslav Bryja
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
- Department of Cytokinetics, Institute of Biophysics, Academy of Sciences of the Czech Republic v.v.i., Brno, Czech Republic
- *Correspondence: Vítězslav Bryja,
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7
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Hruba E, Kavkova M, Dalecka L, Macholan M, Zikmund T, Varecha M, Bosakova M, Kaiser J, Krejci P, Hovorakova M, Buchtova M. Loss of Sprouty Produces a Ciliopathic Skeletal Phenotype in Mice Through Upregulation of Hedgehog Signaling. J Bone Miner Res 2021; 36:2258-2274. [PMID: 34423857 DOI: 10.1002/jbmr.4427] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 08/13/2021] [Accepted: 08/18/2021] [Indexed: 01/23/2023]
Abstract
The Sprouty family is a highly conserved group of intracellular modulators of receptor tyrosine kinase (RTK)-signaling pathways, which have been recently linked to primary cilia. Disruptions in the structure and function of primary cilia cause inherited disorders called ciliopathies. We aimed to evaluate Sprouty2 and Sprouty4 gene-dependent alterations of ciliary structure and to focus on the determination of its association with Hedgehog signaling defects in chondrocytes. Analysis of the transgenic mice phenotype with Sprouty2 and Sprouty4 deficiency revealed several defects, including improper endochondral bone formation and digit patterning, or craniofacial and dental abnormalities. Moreover, reduced bone thickness and trabecular bone mass, skull deformities, or chondroma-like lesions were revealed. All these pathologies might be attributed to ciliopathies. Elongation of the ciliary axonemes in embryonic and postnatal growth plate chondrocytes was observed in Sprouty2-/- and Sprouty2+/- /Sprouty4-/- mutants compared with corresponding littermate controls. Also, cilia-dependent Hedgehog signaling was upregulated in Sprouty2/4 mutant animals. Ptch1 and Ihh expression were upregulated in the autopodium and the proximal tibia of Sprouty2-/- /Sprouty4-/- mutants. Increased levels of the GLI3 repressor (GLI3R) form were detected in Sprouty2/4 mutant primary fibroblast embryonic cell cultures and tissues. These findings demonstrate that mouse lines deficient in Sprouty proteins manifest phenotypic features resembling ciliopathic phenotypes in multiple aspects and may serve as valuable models to study the association between overactivation of RTK and dysfunction of primary cilia during skeletogenesis. © 2021 American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Eva Hruba
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czech Republic.,Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Michaela Kavkova
- Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Linda Dalecka
- Institute of Histology and Embryology, First Faculty of Medicine, Charles University, Prague, Czech Republic.,Department of Cell Biology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Miloš Macholan
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czech Republic
| | - Tomas Zikmund
- Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Miroslav Varecha
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Michaela Bosakova
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czech Republic.,Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Jozef Kaiser
- Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Pavel Krejci
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czech Republic.,Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Maria Hovorakova
- Institute of Histology and Embryology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Marcela Buchtova
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czech Republic.,Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
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8
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Abraham SP, Nita A, Krejci P, Bosakova M. Cilia kinases in skeletal development and homeostasis. Dev Dyn 2021; 251:577-608. [PMID: 34582081 DOI: 10.1002/dvdy.426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/22/2021] [Accepted: 09/22/2021] [Indexed: 11/08/2022] Open
Abstract
Primary cilia are dynamic compartments that regulate multiple aspects of cellular signaling. The production, maintenance, and function of cilia involve more than 1000 genes in mammals, and their mutations disrupt the ciliary signaling which manifests in a plethora of pathological conditions-the ciliopathies. Skeletal ciliopathies are genetic disorders affecting the development and homeostasis of the skeleton, and encompass a broad spectrum of pathologies ranging from isolated polydactyly to lethal syndromic dysplasias. The recent advances in forward genetics allowed for the identification of novel regulators of skeletogenesis, and revealed a growing list of ciliary proteins that are critical for signaling pathways implicated in bone physiology. Among these, a group of protein kinases involved in cilia assembly, maintenance, signaling, and disassembly has emerged. In this review, we summarize the functions of cilia kinases in skeletal development and disease, and discuss the available and upcoming treatment options.
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Affiliation(s)
- Sara P Abraham
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Alexandru Nita
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,Institute of Animal Physiology and Genetics of the CAS, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Michaela Bosakova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,Institute of Animal Physiology and Genetics of the CAS, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
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9
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Kimura T, Bosakova M, Nonaka Y, Hruba E, Yasuda K, Futakawa S, Kubota T, Fafilek B, Gregor T, Abraham SP, Gomolkova R, Belaskova S, Pesl M, Csukasi F, Duran I, Fujiwara M, Kavkova M, Zikmund T, Kaiser J, Buchtova M, Krakow D, Nakamura Y, Ozono K, Krejci P. An RNA aptamer restores defective bone growth in FGFR3-related skeletal dysplasia in mice. Sci Transl Med 2021; 13:13/592/eaba4226. [PMID: 33952673 DOI: 10.1126/scitranslmed.aba4226] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 12/30/2020] [Accepted: 04/16/2021] [Indexed: 01/04/2023]
Abstract
Achondroplasia is the most prevalent genetic form of dwarfism in humans and is caused by activating mutations in FGFR3 tyrosine kinase. The clinical need for a safe and effective inhibitor of FGFR3 is unmet, leaving achondroplasia currently incurable. Here, we evaluated RBM-007, an RNA aptamer previously developed to neutralize the FGFR3 ligand FGF2, for its activity against FGFR3. In cultured rat chondrocytes or mouse embryonal tibia organ culture, RBM-007 rescued the proliferation arrest, degradation of cartilaginous extracellular matrix, premature senescence, and impaired hypertrophic differentiation induced by FGFR3 signaling. In cartilage xenografts derived from induced pluripotent stem cells from individuals with achondroplasia, RBM-007 rescued impaired chondrocyte differentiation and maturation. When delivered by subcutaneous injection, RBM-007 restored defective skeletal growth in a mouse model of achondroplasia. We thus demonstrate a ligand-trap concept of targeting the cartilage FGFR3 and delineate a potential therapeutic approach for achondroplasia and other FGFR3-related skeletal dysplasias.
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Affiliation(s)
- Takeshi Kimura
- Department of Pediatrics, Osaka University Graduate School of Medicine, 565-0871 Osaka, Japan
| | - Michaela Bosakova
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic.,Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic
| | | | - Eva Hruba
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic
| | - Kie Yasuda
- Department of Pediatrics, Osaka University Graduate School of Medicine, 565-0871 Osaka, Japan
| | | | - Takuo Kubota
- Department of Pediatrics, Osaka University Graduate School of Medicine, 565-0871 Osaka, Japan
| | - Bohumil Fafilek
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic.,Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic
| | - Tomas Gregor
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
| | - Sara P Abraham
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic
| | - Regina Gomolkova
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic.,Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic
| | - Silvie Belaskova
- International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
| | - Martin Pesl
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic.,First Department of Internal Medicine-Cardioangiology, St. Anne's University Hospital, Masaryk University, 65691 Brno, Czech Republic
| | - Fabiana Csukasi
- Department of Orthopaedic Surgery, University of California Los Angeles, Los Angeles, CA 90095, USA.,Networking Research Center on Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN)-LABRET, University of Málaga, IBIMA-BIONAND, 29071 Málaga, Spain
| | - Ivan Duran
- Department of Orthopaedic Surgery, University of California Los Angeles, Los Angeles, CA 90095, USA.,Networking Research Center on Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN)-LABRET, University of Málaga, IBIMA-BIONAND, 29071 Málaga, Spain
| | | | - Michaela Kavkova
- Central European Institute of Technology, Brno University of Technology, 61200 Brno, Czech Republic
| | - Tomas Zikmund
- Central European Institute of Technology, Brno University of Technology, 61200 Brno, Czech Republic
| | - Josef Kaiser
- Central European Institute of Technology, Brno University of Technology, 61200 Brno, Czech Republic
| | - Marcela Buchtova
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic.,Department of Experimental Biology, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic
| | - Deborah Krakow
- Department of Orthopaedic Surgery, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Yoshikazu Nakamura
- RIBOMIC Inc., Tokyo 108-0071, Japan. .,Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan
| | - Keiichi Ozono
- Department of Pediatrics, Osaka University Graduate School of Medicine, 565-0871 Osaka, Japan.
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic. .,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic.,Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic
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10
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Nita A, Abraham SP, Krejci P, Bosakova M. Oncogenic FGFR Fusions Produce Centrosome and Cilia Defects by Ectopic Signaling. Cells 2021; 10:1445. [PMID: 34207779 PMCID: PMC8227969 DOI: 10.3390/cells10061445] [Citation(s) in RCA: 3] [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: 04/26/2021] [Revised: 05/27/2021] [Accepted: 06/07/2021] [Indexed: 12/12/2022] Open
Abstract
A single primary cilium projects from most vertebrate cells to guide cell fate decisions. A growing list of signaling molecules is found to function through cilia and control ciliogenesis, including the fibroblast growth factor receptors (FGFR). Aberrant FGFR activity produces abnormal cilia with deregulated signaling, which contributes to pathogenesis of the FGFR-mediated genetic disorders. FGFR lesions are also found in cancer, raising a possibility of cilia involvement in the neoplastic transformation and tumor progression. Here, we focus on FGFR gene fusions, and discuss the possible mechanisms by which they function as oncogenic drivers. We show that a substantial portion of the FGFR fusion partners are proteins associated with the centrosome cycle, including organization of the mitotic spindle and ciliogenesis. The functions of centrosome proteins are often lost with the gene fusion, leading to haploinsufficiency that induces cilia loss and deregulated cell division. We speculate that this complements the ectopic FGFR activity and drives the FGFR fusion cancers.
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Affiliation(s)
- Alexandru Nita
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic; (A.N.); (S.P.A.); (P.K.)
| | - Sara P. Abraham
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic; (A.N.); (S.P.A.); (P.K.)
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic; (A.N.); (S.P.A.); (P.K.)
- Institute of Animal Physiology and Genetics of the CAS, 60200 Brno, Czech Republic
- International Clinical Research Center, St. Anne’s University Hospital, 65691 Brno, Czech Republic
| | - Michaela Bosakova
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic; (A.N.); (S.P.A.); (P.K.)
- Institute of Animal Physiology and Genetics of the CAS, 60200 Brno, Czech Republic
- International Clinical Research Center, St. Anne’s University Hospital, 65691 Brno, Czech Republic
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11
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Barad M, Csukasi F, Bosakova M, Martin JH, Zhang W, Paige Taylor S, Lachman RS, Zieba J, Bamshad M, Nickerson D, Chong JX, Cohn DH, Krejci P, Krakow D, Duran I. Biallelic mutations in LAMA5 disrupts a skeletal noncanonical focal adhesion pathway and produces a distinct bent bone dysplasia. EBioMedicine 2020; 62:103075. [PMID: 33242826 PMCID: PMC7695969 DOI: 10.1016/j.ebiom.2020.103075] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/30/2020] [Accepted: 10/01/2020] [Indexed: 12/13/2022] Open
Abstract
Background Beyond its structural role in the skeleton, the extracellular matrix (ECM), particularly basement membrane proteins, facilitates communication with intracellular signaling pathways and cell to cell interactions to control differentiation, proliferation, migration and survival. Alterations in extracellular proteins cause a number of skeletal disorders, yet the consequences of an abnormal ECM on cellular communication remains less well understood Methods Clinical and radiographic examinations defined the phenotype in this unappreciated bent bone skeletal disorder. Exome analysis identified the genetic alteration, confirmed by Sanger sequencing. Quantitative PCR, western blot analyses, immunohistochemistry, luciferase assay for WNT signaling were employed to determine RNA, proteins levels and localization, and dissect out the underlying cell signaling abnormalities. Migration and wound healing assays examined cell migration properties. Findings This bent bone dysplasia resulted from biallelic mutations in LAMA5, the gene encoding the alpha-5 laminin basement membrane protein. This finding uncovered a mechanism of disease driven by ECM-cell interactions between alpha-5-containing laminins, and integrin-mediated focal adhesion signaling, particularly in cartilage. Loss of LAMA5 altered β1 integrin signaling through the non-canonical kinase PYK2 and the skeletal enriched SRC kinase, FYN. Loss of LAMA5 negatively impacted the actin cytoskeleton, vinculin localization, and WNT signaling. Interpretation This newly described mechanism revealed a LAMA5-β1 Integrin-PYK2-FYN focal adhesion complex that regulates skeletogenesis, impacted WNT signaling and, when dysregulated, produced a distinct skeletal disorder. Funding Supported by NIH awards R01 AR066124, R01 DE019567, R01 HD070394, and U54HG006493, and Czech Republic grants INTER-ACTION LTAUSA19030, V18-08-00567 and GA19-20123S.
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Affiliation(s)
- Maya Barad
- Department of Orthopaedic Surgery, University of California-Los Angeles, 615 Charles E. Young Drive South, BSRB 512, Los Angeles, CA 90095, United States
| | - Fabiana Csukasi
- Department of Orthopaedic Surgery, University of California-Los Angeles, 615 Charles E. Young Drive South, BSRB 512, Los Angeles, CA 90095, United States; Laboratory of Bioengineering and Tissue Regeneration-LABRET, Department of Cell Biology, Genetics and Physiology, University of Málaga, IBIMA, Málaga 29071, Spain
| | - Michaela Bosakova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno 62500, Czech Republic; International Clinical Research Center, St. Anne's University Hospital, Brno 65691, Czech Republic
| | - Jorge H Martin
- Department of Orthopaedic Surgery, University of California-Los Angeles, 615 Charles E. Young Drive South, BSRB 512, Los Angeles, CA 90095, United States
| | - Wenjuan Zhang
- Department of Molecular, Cell and Developmental Biology, University of California- Los Angeles, Los Angeles, CA 90095, United States
| | - S Paige Taylor
- Department of Orthopaedic Surgery, University of California-Los Angeles, 615 Charles E. Young Drive South, BSRB 512, Los Angeles, CA 90095, United States
| | - Ralph S Lachman
- International Skeletal Dysplasia Registry, University of California, Los Angeles, CA 90095 United States
| | - Jennifer Zieba
- Department of Orthopaedic Surgery, University of California-Los Angeles, 615 Charles E. Young Drive South, BSRB 512, Los Angeles, CA 90095, United States
| | - Michael Bamshad
- University of Washington Center for Mendelian Genomics, University of Washington, Seattle, WA 98195 United States
| | - Deborah Nickerson
- University of Washington Center for Mendelian Genomics, University of Washington, Seattle, WA 98195 United States
| | - Jessica X Chong
- University of Washington Center for Mendelian Genomics, University of Washington, Seattle, WA 98195 United States
| | - Daniel H Cohn
- Department of Orthopaedic Surgery, University of California-Los Angeles, 615 Charles E. Young Drive South, BSRB 512, Los Angeles, CA 90095, United States; Department of Molecular, Cell and Developmental Biology, University of California- Los Angeles, Los Angeles, CA 90095, United States; Orthopaedic Institute for Children, University of California-Los Angeles, Los Angeles, CA 90095, United States
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, Brno 62500, Czech Republic; International Clinical Research Center, St. Anne's University Hospital, Brno 65691, Czech Republic
| | - Deborah Krakow
- Department of Orthopaedic Surgery, University of California-Los Angeles, 615 Charles E. Young Drive South, BSRB 512, Los Angeles, CA 90095, United States; International Skeletal Dysplasia Registry, University of California, Los Angeles, CA 90095 United States; Orthopaedic Institute for Children, University of California-Los Angeles, Los Angeles, CA 90095, United States; Department of Human Genetics, University of California-Los Angeles, Los Angeles, CA 90095, United States; Department of Obstetrics and Gynecology, University of California-Los Angeles, Los Angeles, CA 90095, United States.
| | - Ivan Duran
- Department of Orthopaedic Surgery, University of California-Los Angeles, 615 Charles E. Young Drive South, BSRB 512, Los Angeles, CA 90095, United States; Laboratory of Bioengineering and Tissue Regeneration-LABRET, Department of Cell Biology, Genetics and Physiology, University of Málaga, IBIMA, Málaga 29071, Spain; Networking Biomedical Research Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Andalusian Centre for Nanomedicine and Biotechnology-BIONAND, Severo Ochoa 35, Málaga 29590, Spain
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12
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Bosakova M, Abraham SP, Nita A, Hruba E, Buchtova M, Taylor SP, Duran I, Martin J, Svozilova K, Barta T, Varecha M, Balek L, Kohoutek J, Radaszkiewicz T, Pusapati GV, Bryja V, Rush ET, Thiffault I, Nickerson DA, Bamshad MJ, Rohatgi R, Cohn DH, Krakow D, Krejci P. Mutations in GRK2 cause Jeune syndrome by impairing Hedgehog and canonical Wnt signaling. EMBO Mol Med 2020; 12:e11739. [PMID: 33200460 PMCID: PMC7645380 DOI: 10.15252/emmm.201911739] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 09/08/2020] [Accepted: 09/15/2020] [Indexed: 12/15/2022] Open
Abstract
Mutations in genes affecting primary cilia cause ciliopathies, a diverse group of disorders often affecting skeletal development. This includes Jeune syndrome or asphyxiating thoracic dystrophy (ATD), an autosomal recessive skeletal disorder. Unraveling the responsible molecular pathology helps illuminate mechanisms responsible for functional primary cilia. We identified two families with ATD caused by loss-of-function mutations in the gene encoding adrenergic receptor kinase 1 (ADRBK1 or GRK2). GRK2 cells from an affected individual homozygous for the p.R158* mutation resulted in loss of GRK2, and disrupted chondrocyte growth and differentiation in the cartilage growth plate. GRK2 null cells displayed normal cilia morphology, yet loss of GRK2 compromised cilia-based signaling of Hedgehog (Hh) pathway. Canonical Wnt signaling was also impaired, manifested as a failure to respond to Wnt ligand due to impaired phosphorylation of the Wnt co-receptor LRP6. We have identified GRK2 as an essential regulator of skeletogenesis and demonstrate how both Hh and Wnt signaling mechanistically contribute to skeletal ciliopathies.
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Affiliation(s)
- Michaela Bosakova
- Department of BiologyFaculty of MedicineMasaryk UniversityBrnoCzech Republic
- International Clinical Research CenterSt. Anne's University HospitalBrnoCzech Republic
- Institute of Animal Physiology and Genetics of the CASBrnoCzech Republic
| | - Sara P Abraham
- Department of BiologyFaculty of MedicineMasaryk UniversityBrnoCzech Republic
| | - Alexandru Nita
- Department of BiologyFaculty of MedicineMasaryk UniversityBrnoCzech Republic
| | - Eva Hruba
- Institute of Animal Physiology and Genetics of the CASBrnoCzech Republic
| | - Marcela Buchtova
- Institute of Animal Physiology and Genetics of the CASBrnoCzech Republic
| | - S Paige Taylor
- Department of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLALos AngelesCAUSA
| | - Ivan Duran
- Department of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLALos AngelesCAUSA
| | - Jorge Martin
- Department of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLALos AngelesCAUSA
| | - Katerina Svozilova
- Department of BiologyFaculty of MedicineMasaryk UniversityBrnoCzech Republic
- Institute of Animal Physiology and Genetics of the CASBrnoCzech Republic
| | - Tomas Barta
- Department of Histology and EmbryologyFaculty of MedicineMasaryk UniversityBrnoCzech Republic
| | - Miroslav Varecha
- Department of BiologyFaculty of MedicineMasaryk UniversityBrnoCzech Republic
| | - Lukas Balek
- Department of BiologyFaculty of MedicineMasaryk UniversityBrnoCzech Republic
| | | | - Tomasz Radaszkiewicz
- Institute of Experimental BiologyFaculty of ScienceMasaryk UniversityBrnoCzech Republic
| | - Ganesh V Pusapati
- Department of BiochemistryStanford UniversityPalo AltoCAUSA
- Department of MedicineStanford UniversityPalo AltoCAUSA
| | - Vitezslav Bryja
- Institute of Experimental BiologyFaculty of ScienceMasaryk UniversityBrnoCzech Republic
| | - Eric T Rush
- Children's Mercy Kansas City, Center for Pediatric Genomic MedicineKansas CityMOUSA
- Department of PediatricsUniversity of MissouriKansas CityMOUSA
| | - Isabelle Thiffault
- Children's Mercy Kansas City, Center for Pediatric Genomic MedicineKansas CityMOUSA
- Department of PediatricsUniversity of MissouriKansas CityMOUSA
| | | | - Michael J Bamshad
- Department of Genome SciencesUniversity of WashingtonSeattleWAUSA
- Department of PediatricsUniversity of WashingtonSeattleWAUSA
- Division of Genetic MedicineSeattle Children's HospitalSeattleWAUSA
| | | | - Rajat Rohatgi
- Department of BiochemistryStanford UniversityPalo AltoCAUSA
- Department of MedicineStanford UniversityPalo AltoCAUSA
| | - Daniel H Cohn
- Department of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLALos AngelesCAUSA
- Department of Molecular Cell and Developmental BiologyUniversity of California at Los AngelesLos AngelesCAUSA
| | - Deborah Krakow
- Department of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLALos AngelesCAUSA
- Department of Human GeneticsDavid Geffen School of Medicine at UCLALos AngelesCAUSA
- Department of Obstetrics and GynecologyDavid Geffen School of Medicine at UCLALos AngelesCAUSA
| | - Pavel Krejci
- Department of BiologyFaculty of MedicineMasaryk UniversityBrnoCzech Republic
- International Clinical Research CenterSt. Anne's University HospitalBrnoCzech Republic
- Institute of Animal Physiology and Genetics of the CASBrnoCzech Republic
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13
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Gregor T, Bosakova MK, Nita A, Abraham SP, Fafilek B, Cernohorsky NH, Rynes J, Foldynova-Trantirkova S, Zackova D, Mayer J, Trantirek L, Krejci P. Elucidation of protein interactions necessary for the maintenance of the BCR-ABL signaling complex. Cell Mol Life Sci 2020; 77:3885-3903. [PMID: 31820037 PMCID: PMC11104816 DOI: 10.1007/s00018-019-03397-7] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 11/05/2019] [Accepted: 11/26/2019] [Indexed: 10/25/2022]
Abstract
Many patients with chronic myeloid leukemia in deep remission experience return of clinical disease after withdrawal of tyrosine kinase inhibitors (TKIs). This suggests signaling of inactive BCR-ABL, which allows the survival of cancer cells, and relapse. We show that TKI treatment inhibits catalytic activity of BCR-ABL, but does not dissolve BCR-ABL core signaling complex, consisting of CRKL, SHC1, GRB2, SOS1, cCBL, p85a-PI3K, STS1 and SHIP2. Peptide microarray and co-immunoprecipitation results demonstrate that CRKL binds to proline-rich regions located in C-terminal, intrinsically disordered region of BCR-ABL, that SHC1 requires pleckstrin homology, src homology and tyrosine kinase domains of BCR-ABL for binding, and that BCR-ABL sequence motif located in disordered region around phosphorylated tyrosine 177 mediates binding of three core complex members, i.e., GRB2, SOS1, and cCBL. Further, SHIP2 binds to the src homology and tyrosine kinase domains of BCR-ABL and its inositol phosphatase activity contributes to BCR-ABL-mediated phosphorylation of SHC1. Together, this study characterizes protein-protein interactions within the BCR-ABL core complex and determines the contribution of particular BCR-ABL domains to downstream signaling. Understanding the structure and dynamics of BCR-ABL interactome is critical for the development of drugs targeting integrity of the BCR-ABL core complex.
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MESH Headings
- Adaptor Proteins, Signal Transducing/metabolism
- Amino Acid Motifs
- Binding Sites
- Cell Line, Tumor
- Fusion Proteins, bcr-abl/chemistry
- Fusion Proteins, bcr-abl/genetics
- Fusion Proteins, bcr-abl/metabolism
- HEK293 Cells
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Phosphatidylinositol-3,4,5-Trisphosphate 5-Phosphatases/metabolism
- Phosphorylation
- Protein Array Analysis
- Protein Binding/drug effects
- Protein Kinase Inhibitors/pharmacology
- Pyrimidines/pharmacology
- Signal Transduction/drug effects
- Src Homology 2 Domain-Containing, Transforming Protein 1/metabolism
- src Homology Domains
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Affiliation(s)
- Tomas Gregor
- Central European Institute of Technology, Masaryk University, 62500, Brno, Czech Republic
- Department of Biology, Faculty of Medicine, Masaryk University, 62500, Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital, 65691, Brno, Czech Republic
| | - Michaela Kunova Bosakova
- Department of Biology, Faculty of Medicine, Masaryk University, 62500, Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital, 65691, Brno, Czech Republic
- Institute of Animal Physiology and Genetics of the CAS, 60200, Brno, Czech Republic
| | - Alexandru Nita
- Department of Biology, Faculty of Medicine, Masaryk University, 62500, Brno, Czech Republic
- Institute of Organic Chemistry and Biochemistry of the CAS, 16610, Prague, Czech Republic
| | - Sara P Abraham
- Department of Biology, Faculty of Medicine, Masaryk University, 62500, Brno, Czech Republic
| | - Bohumil Fafilek
- Department of Biology, Faculty of Medicine, Masaryk University, 62500, Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital, 65691, Brno, Czech Republic
- Institute of Animal Physiology and Genetics of the CAS, 60200, Brno, Czech Republic
| | - Nicole H Cernohorsky
- Department of Biology, Faculty of Medicine, Masaryk University, 62500, Brno, Czech Republic
| | - Jan Rynes
- Central European Institute of Technology, Masaryk University, 62500, Brno, Czech Republic
| | | | - Daniela Zackova
- Department of Internal Medicine, Hematology and Oncology, Masaryk University Hospital, 62500, Brno, Czech Republic
| | - Jiri Mayer
- Department of Internal Medicine, Hematology and Oncology, Masaryk University Hospital, 62500, Brno, Czech Republic
| | - Lukas Trantirek
- Central European Institute of Technology, Masaryk University, 62500, Brno, Czech Republic.
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, 62500, Brno, Czech Republic.
- International Clinical Research Center, St. Anne's University Hospital, 65691, Brno, Czech Republic.
- Institute of Animal Physiology and Genetics of the CAS, 60200, Brno, Czech Republic.
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14
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Csukasi F, Duran I, Barad M, Barta T, Gudernova I, Trantirek L, Martin JH, Kuo CY, Woods J, Lee H, Cohn DH, Krejci P, Krakow D. The PTH/PTHrP-SIK3 pathway affects skeletogenesis through altered mTOR signaling. Sci Transl Med 2019; 10:10/459/eaat9356. [PMID: 30232230 DOI: 10.1126/scitranslmed.aat9356] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 08/31/2018] [Indexed: 12/19/2022]
Abstract
Studies have suggested a role for the mammalian (or mechanistic) target of rapamycin (mTOR) in skeletal development and homeostasis, yet there is no evidence connecting mTOR with the key signaling pathways that regulate skeletogenesis. We identified a parathyroid hormone (PTH)/PTH-related peptide (PTHrP)-salt-inducible kinase 3 (SIK3)-mTOR signaling cascade essential for skeletogenesis. While investigating a new skeletal dysplasia caused by a homozygous mutation in the catalytic domain of SIK3, we observed decreased activity of mTOR complex 1 (mTORC1) and mTORC2 due to accumulation of DEPTOR, a negative regulator of both mTOR complexes. This SIK3 syndrome shared skeletal features with Jansen metaphyseal chondrodysplasia (JMC), a disorder caused by constitutive activation of the PTH/PTHrP receptor. JMC-derived chondrocytes showed reduced SIK3 activity, elevated DEPTOR, and decreased mTORC1 and mTORC2 activity, indicating a common mechanism of disease. The data demonstrate that SIK3 is an essential positive regulator of mTOR signaling that functions by triggering DEPTOR degradation in response to PTH/PTHrP signaling during skeletogenesis.
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Affiliation(s)
- Fabiana Csukasi
- Department of Orthopaedic Surgery, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - Ivan Duran
- Department of Orthopaedic Surgery, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - Maya Barad
- Department of Orthopaedic Surgery, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - Tomas Barta
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic
| | - Iva Gudernova
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic
| | - Lukas Trantirek
- Central European Institute of Technology, Masaryk University, 62500 Brno, Czech Republic
| | - Jorge H Martin
- Department of Orthopaedic Surgery, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - Caroline Y Kuo
- Department of Pediatrics, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - Jeremy Woods
- Department of Pediatrics, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - Hane Lee
- Department of Pathology and Laboratory Medicine, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - Daniel H Cohn
- Department of Orthopaedic Surgery, University of California-Los Angeles, Los Angeles, CA 90095, USA.,Orthopaedic Institute for Children, University of California-Los Angeles, Los Angeles, CA 90095, USA.,Department of Molecular, Cell and Developmental Biology, University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - Pavel Krejci
- Department of Orthopaedic Surgery, University of California-Los Angeles, Los Angeles, CA 90095, USA.,Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic.,Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, 60200 Brno, Czech Republic
| | - Deborah Krakow
- Department of Orthopaedic Surgery, University of California-Los Angeles, Los Angeles, CA 90095, USA. .,Orthopaedic Institute for Children, University of California-Los Angeles, Los Angeles, CA 90095, USA.,Department of Human Genetics, University of California-Los Angeles, Los Angeles, CA 90095, USA.,Department of Obstetrics and Gynecology, University of California-Los Angeles, Los Angeles, CA 90095, USA
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15
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Ramos AR, Ghosh S, Suhel T, Chevalier C, Obeng EO, Fafilek B, Krejci P, Beck B, Erneux C. Phosphoinositide 5-phosphatases SKIP and SHIP2 in ruffles, the endoplasmic reticulum and the nucleus: An update. Adv Biol Regul 2019; 75:100660. [PMID: 31628071 DOI: 10.1016/j.jbior.2019.100660] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 09/18/2019] [Accepted: 09/30/2019] [Indexed: 01/22/2023]
Abstract
Phosphoinositides (PIs) are phosphorylated derivatives of phosphatidylinositol. They act as signaling molecules linked to essential cellular mechanisms in eukaryotic cells, such as cytoskeleton organization, mitosis, polarity, migration or invasion. PIs are phosphorylated and dephosphorylated by a large number of PI kinases and PI phosphatases acting at the 5-, 4- and 3- position of the inositol ring. PI 5-phosphatases i.e. OCRL, INPP5B, SHIP1/2, Synaptojanin 1/2, INPP5E, INPP5J, SKIP (INPP5K) are enzymes that dephosphorylate the 5-phosphate position of PIs. Several human genetic diseases such as the Lowe syndrome, some congenital muscular dystrophy and opsismodysplasia are due to mutations in PI phosphatases, resulting in loss-of-function. The PI phosphatases are also up or down regulated in several human cancers such as glioblastoma or breast cancer. Their cellular localization, that is dynamic and varies in response to stimuli, is an important issue to understand function. This is the case for two members of the PI 5-phosphatase SKIP and SHIP2. Both enzymes are in ruffles, plasma membranes, the endoplasmic reticulum, a situation that is unique for SKIP, and the nucleus. Following localization, PI 5-phosphatases act on specific cellular pools of PIs, which in turn interact with target proteins. Nuclear PIs have emerged as regulators of genome functions in different area of cell signaling. They often localize to nuclear speckles, as do several PI metabolizing kinases and phosphatases. We asked whether SKIP and SHIP2 could have an impact on nuclear PI(4,5)P2. In two glioblastoma cell models, lowering SKIP expression had an impact on nuclear PI(4,5)P2. In a model of SHIP2 deletion in MCF-7 cells, no change in nuclear PI(4,5)P2 was observed. Finally, we present evidence of an anti-tumoral role of SKIP in vivo, in xenografts using as model U87shSKIP cells.
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Affiliation(s)
- Ana Raquel Ramos
- IRIBHM, Campus Erasme, ULB Bâtiment C, 808 Route de Lennik, 1070, Bruxelles, Belgium
| | - Somadri Ghosh
- IRIBHM, Campus Erasme, ULB Bâtiment C, 808 Route de Lennik, 1070, Bruxelles, Belgium
| | - Tara Suhel
- IRIBHM, Campus Erasme, ULB Bâtiment C, 808 Route de Lennik, 1070, Bruxelles, Belgium
| | - Clément Chevalier
- Center for Microscopy and Molecular Imaging ULB, 12 Rue des Professeurs Jeener et Brachet, 6041, Charleroi, Belgium
| | - Eric Owusu Obeng
- IRIBHM, Campus Erasme, ULB Bâtiment C, 808 Route de Lennik, 1070, Bruxelles, Belgium; Department of Biomedical Sciences, University of Bologna, Via Irnerio, 48, 40126, Bologna, Italy
| | - Bohumil Fafilek
- Department of Biology, Faculty of Medicine, Masaryk University, 62500, Brno, Czech Republic
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, 62500, Brno, Czech Republic
| | - Benjamin Beck
- IRIBHM, Campus Erasme, ULB Bâtiment C, 808 Route de Lennik, 1070, Bruxelles, Belgium
| | - Christophe Erneux
- IRIBHM, Campus Erasme, ULB Bâtiment C, 808 Route de Lennik, 1070, Bruxelles, Belgium.
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16
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17
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Kunova Bosakova M, Varecha M, Hampl M, Duran I, Nita A, Buchtova M, Dosedelova H, Machat R, Xie Y, Ni Z, Martin JH, Chen L, Jansen G, Krakow D, Krejci P. Regulation of ciliary function by fibroblast growth factor signaling identifies FGFR3-related disorders achondroplasia and thanatophoric dysplasia as ciliopathies. Hum Mol Genet 2019; 27:1093-1105. [PMID: 29360984 DOI: 10.1093/hmg/ddy031] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 01/09/2018] [Indexed: 11/13/2022] Open
Abstract
Cilia project from almost every cell integrating extracellular cues with signaling pathways. Constitutive activation of FGFR3 signaling produces the skeletal disorders achondroplasia (ACH) and thanatophoric dysplasia (TD), but many of the molecular mechanisms underlying these phenotypes remain unresolved. Here, we report in vivo evidence for significantly shortened primary cilia in ACH and TD cartilage growth plates. Using in vivo and in vitro methodologies, our data demonstrate that transient versus sustained activation of FGF signaling correlated with different cilia consequences. Transient FGF pathway activation elongated cilia, while sustained activity shortened cilia. FGF signaling extended primary cilia via ERK MAP kinase and mTORC2 signaling, but not through mTORC1. Employing a GFP-tagged IFT20 construct to measure intraflagellar (IFT) speed in cilia, we showed that FGF signaling affected IFT velocities, as well as modulating cilia-based Hedgehog signaling. Our data integrate primary cilia into canonical FGF signal transduction and uncover a FGF-cilia pathway that needs consideration when elucidating the mechanisms of physiological and pathological FGFR function, or in the development of FGFR therapeutics.
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Affiliation(s)
| | - Miroslav Varecha
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
| | - Marek Hampl
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, 62500 Brno, Czech Republic.,Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic
| | - Ivan Duran
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Alexandru Nita
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic
| | - Marcela Buchtova
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, 62500 Brno, Czech Republic.,Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic
| | - Hana Dosedelova
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic
| | - Radek Machat
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, 62500 Brno, Czech Republic.,Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic
| | - Yangli Xie
- Department of Rehabilitation Medicine, Third Military Medical University, Chongqing 400042, China
| | - Zhenhong Ni
- Department of Rehabilitation Medicine, Third Military Medical University, Chongqing 400042, China
| | - Jorge H Martin
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Lin Chen
- Department of Rehabilitation Medicine, Third Military Medical University, Chongqing 400042, China
| | - Gert Jansen
- Department of Cell Biology, Erasmus MC, 3000 CA Rotterdam, The Netherlands
| | - Deborah Krakow
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.,Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.,Department of Obstetrics and Gynecology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
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18
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Krejci P, Sebestova J. Innovative Literacy Levels: Gender Age and Education Matters. MMI 2019. [DOI: 10.21272/mmi.2019.4-27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
This paper presents the arguments and counterarguments within the scientific discussion on the issue of an innovation activity, which is very important for entrepreneurship and is considered a significant competitive advantage. However, there are factors such as education, age and gender that can influence innovation creation. The main purpose of the research is finding out how innovation creation is related to the gender, age and education of entrepreneurs in common entrepreneurship and social entrepreneurship. The systematic literature review has shown that innovative activity is supported by entrepreneurial competencies. The relevance of the decision of this scientific problem is that they are few studies focusing on that problem. Investigation of the topic of innovative activity in the paper is carried out in the following logical sequence: (1) literature review concerning on innovative activity, typology and modern trends in innovations (2) possibilities of competencies needed for innovations, (3) case study background, based on literature review and previous studies (4) presentation of key results concerning gender, which was found to have no significance regarding entrepreneurship. Methodological tools of the research methods were sociological survey, data analysis. As a result of the calculations, the main issues of innovative activities were detected. The main results were analysed using Cluster analysis and tests of statistical significance. The paper presents the results of an empirical analysis that shows the main gaps in the innovation classification when pure and combined innovation types are presented. The research empirically confirms and theoretically proves the necessity of doing the following steps: inform and educate entrepreneurs in the area of innovation, not only to support innovative activities financially. The findings have practical significance and the results of the research can be useful for public supporters and educational organizations how to work with entrepreneurs with innovative ideas.
Keywords: competencies, determinants of innovations, innovations, literacy.
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Affiliation(s)
- P. Krejci
- Silesian University in Opava (Czech Republic)
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19
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Fafilek B, Balek L, Bosakova MK, Varecha M, Nita A, Gregor T, Gudernova I, Krenova J, Ghosh S, Piskacek M, Jonatova L, Cernohorsky NH, Zieba JT, Kostas M, Haugsten EM, Wesche J, Erneux C, Trantirek L, Krakow D, Krejci P. The inositol phosphatase SHIP2 enables sustained ERK activation downstream of FGF receptors by recruiting Src kinases. Sci Signal 2018; 11:11/548/eaap8608. [PMID: 30228226 DOI: 10.1126/scisignal.aap8608] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Sustained activation of extracellular signal-regulated kinase (ERK) drives pathologies caused by mutations in fibroblast growth factor receptors (FGFRs). We previously identified the inositol phosphatase SHIP2 (also known as INPPL1) as an FGFR-interacting protein and a target of the tyrosine kinase activities of FGFR1, FGFR3, and FGFR4. We report that loss of SHIP2 converted FGF-mediated sustained ERK activation into a transient signal and rescued cell phenotypes triggered by pathologic FGFR-ERK signaling. Mutant forms of SHIP2 lacking phosphoinositide phosphatase activity still associated with FGFRs and did not prevent FGF-induced sustained ERK activation, demonstrating that the adaptor rather than the catalytic activity of SHIP2 was required. SHIP2 recruited Src family kinases to the FGFRs, which promoted FGFR-mediated phosphorylation and assembly of protein complexes that relayed signaling to ERK. SHIP2 interacted with FGFRs, was phosphorylated by active FGFRs, and promoted FGFR-ERK signaling at the level of phosphorylation of the adaptor FRS2 and recruitment of the tyrosine phosphatase PTPN11. Thus, SHIP2 is an essential component of canonical FGF-FGFR signal transduction and a potential therapeutic target in FGFR-related disorders.
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Affiliation(s)
- Bohumil Fafilek
- Department of Biology, Masaryk University, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
| | - Lukas Balek
- Department of Biology, Masaryk University, 62500 Brno, Czech Republic
| | - Michaela Kunova Bosakova
- Department of Biology, Masaryk University, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
| | - Miroslav Varecha
- Department of Biology, Masaryk University, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
| | - Alexandru Nita
- Department of Biology, Masaryk University, 62500 Brno, Czech Republic
| | - Tomas Gregor
- Central European Institute of Technology, Masaryk University, 62500 Brno, Czech Republic
| | - Iva Gudernova
- Department of Biology, Masaryk University, 62500 Brno, Czech Republic
| | - Jitka Krenova
- Department of Biology, Masaryk University, 62500 Brno, Czech Republic
| | - Somadri Ghosh
- Institut de Recherche Interdisciplinaire en Biologie Humaine et moléculaire, Université Libre de Bruxelles, 1070 Bruxelles, Belgium
| | - Martin Piskacek
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic
| | - Lucie Jonatova
- Department of Biology, Masaryk University, 62500 Brno, Czech Republic
| | | | - Jennifer T Zieba
- Department of Orthopedic Surgery, University of California Los Angeles, CA 90095, USA
| | - Michal Kostas
- Department of Tumor Biology, Institute for Cancer Research, Norwegian Radium Hospital, 0379 Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0379 Oslo, Norway
| | - Ellen Margrethe Haugsten
- Department of Tumor Biology, Institute for Cancer Research, Norwegian Radium Hospital, 0379 Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0379 Oslo, Norway
| | - Jørgen Wesche
- Department of Tumor Biology, Institute for Cancer Research, Norwegian Radium Hospital, 0379 Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0379 Oslo, Norway
| | - Christophe Erneux
- Institut de Recherche Interdisciplinaire en Biologie Humaine et moléculaire, Université Libre de Bruxelles, 1070 Bruxelles, Belgium
| | - Lukas Trantirek
- Central European Institute of Technology, Masaryk University, 62500 Brno, Czech Republic
| | - Deborah Krakow
- Department of Orthopedic Surgery, University of California Los Angeles, CA 90095, USA.,Department of Human Genetics, University of California Los Angeles, CA 90095, USA.,Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California Los Angeles, CA 90095, USA
| | - Pavel Krejci
- Department of Biology, Masaryk University, 62500 Brno, Czech Republic. .,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic.,Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, 60200 Brno, Czech Republic
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20
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Balek L, Buchtova M, Kunova Bosakova M, Varecha M, Foldynova-Trantirkova S, Gudernova I, Vesela I, Havlik J, Neburkova J, Turner S, Krzyscik MA, Zakrzewska M, Klimaschewski L, Claus P, Trantirek L, Cigler P, Krejci P. Nanodiamonds as “artificial proteins”: Regulation of a cell signalling system using low nanomolar solutions of inorganic nanocrystals. Biomaterials 2018; 176:106-121. [DOI: 10.1016/j.biomaterials.2018.05.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 03/31/2018] [Accepted: 05/19/2018] [Indexed: 12/14/2022]
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21
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Bosák J, Micenková L, Hrala M, Pomorská K, Kunova Bosakova M, Krejci P, Göpfert E, Faldyna M, Šmajs D. Colicin F Y inhibits pathogenic Yersinia enterocolitica in mice. Sci Rep 2018; 8:12242. [PMID: 30115964 PMCID: PMC6095899 DOI: 10.1038/s41598-018-30729-7] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 08/06/2018] [Indexed: 12/26/2022] Open
Abstract
Yersiniosis belongs to the common foodborne diseases around the world, and frequently manifests as diarrhea that can be treated with probiotics. Colicin FY is an antibacterial agent produced by bacteria and it is capable of specific growth inhibition of Yersinia enterocolitica, the causative agent of gastrointestinal yersiniosis. In this study, recombinant E. coli producing colicin FY were constructed, using both known probiotic strains EcH22 and EcColinfant, and the newly isolated murine strains Ec1127 and Ec1145. All E. coli strains producing colicin FY inhibited growth of pathogenic Y. enterocolitica during co-cultivation in vitro. In dysbiotic mice treated with streptomycin, E. coli strains producing colicin FY inhibited progression of Y. enterocolitica infections. This growth inhibition was not observed in mice with normal gut microflora, likely due to insufficient colonization capacity of E. coli strains and/or due to spatial differences in intestinal niches. Isogenic Y. enterocolitica producing colicin FY was constructed and shown to inhibit pathogenic Y. enterocolitica in mice with normal microflora. Evidence of in vivo antimicrobial activity of colicin FY may have utility in the treatment of Y. enterocolitica infections.
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Affiliation(s)
- Juraj Bosák
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Lenka Micenková
- Research Centre for Toxic Compounds in the Environment, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Matěj Hrala
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Katarína Pomorská
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | | | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | | | | | - David Šmajs
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.
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22
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Dvorak P, Bednar D, Vanacek P, Balek L, Eiselleova L, Stepankova V, Sebestova E, Kunova Bosakova M, Konecna Z, Mazurenko S, Kunka A, Vanova T, Zoufalova K, Chaloupkova R, Brezovsky J, Krejci P, Prokop Z, Dvorak P, Damborsky J. Cover Image, Volume 115, Number 4, April 2018. Biotechnol Bioeng 2018. [DOI: 10.1002/bit.26415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pavel Dvorak
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOXMasaryk UniversityBrnoCzech Republic
- Faculty of ScienceDepartment of Experimental BiologyMasaryk UniversityBrnoCzech Republic
| | - David Bednar
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOXMasaryk UniversityBrnoCzech Republic
- Faculty of ScienceDepartment of Experimental BiologyMasaryk UniversityBrnoCzech Republic
| | - Pavel Vanacek
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOXMasaryk UniversityBrnoCzech Republic
- Faculty of ScienceDepartment of Experimental BiologyMasaryk UniversityBrnoCzech Republic
| | - Lukas Balek
- Faculty of MedicineDepartment of BiologyMasaryk UniversityBrnoCzech Republic
| | - Livia Eiselleova
- Faculty of MedicineDepartment of BiologyMasaryk UniversityBrnoCzech Republic
| | - Veronika Stepankova
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOXMasaryk UniversityBrnoCzech Republic
- International Clinical Research CenterSt. Anne's University HospitalBrnoCzech Republic
- Enantis Ltd.Biotechnology Incubator INBITBrnoCzech Republic
| | - Eva Sebestova
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOXMasaryk UniversityBrnoCzech Republic
- Faculty of ScienceDepartment of Experimental BiologyMasaryk UniversityBrnoCzech Republic
| | | | - Zaneta Konecna
- Faculty of MedicineDepartment of BiologyMasaryk UniversityBrnoCzech Republic
| | - Stanislav Mazurenko
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOXMasaryk UniversityBrnoCzech Republic
- Faculty of ScienceDepartment of Experimental BiologyMasaryk UniversityBrnoCzech Republic
| | - Antonin Kunka
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOXMasaryk UniversityBrnoCzech Republic
- Faculty of ScienceDepartment of Experimental BiologyMasaryk UniversityBrnoCzech Republic
| | - Tereza Vanova
- Faculty of MedicineDepartment of BiologyMasaryk UniversityBrnoCzech Republic
| | - Karolina Zoufalova
- Faculty of MedicineDepartment of BiologyMasaryk UniversityBrnoCzech Republic
| | - Radka Chaloupkova
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOXMasaryk UniversityBrnoCzech Republic
- Faculty of ScienceDepartment of Experimental BiologyMasaryk UniversityBrnoCzech Republic
- International Clinical Research CenterSt. Anne's University HospitalBrnoCzech Republic
| | - Jan Brezovsky
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOXMasaryk UniversityBrnoCzech Republic
- Faculty of ScienceDepartment of Experimental BiologyMasaryk UniversityBrnoCzech Republic
- International Clinical Research CenterSt. Anne's University HospitalBrnoCzech Republic
| | - Pavel Krejci
- Faculty of MedicineDepartment of BiologyMasaryk UniversityBrnoCzech Republic
- International Clinical Research CenterSt. Anne's University HospitalBrnoCzech Republic
| | - Zbynek Prokop
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOXMasaryk UniversityBrnoCzech Republic
- Faculty of ScienceDepartment of Experimental BiologyMasaryk UniversityBrnoCzech Republic
- International Clinical Research CenterSt. Anne's University HospitalBrnoCzech Republic
| | - Petr Dvorak
- Faculty of MedicineDepartment of BiologyMasaryk UniversityBrnoCzech Republic
- International Clinical Research CenterSt. Anne's University HospitalBrnoCzech Republic
| | - Jiri Damborsky
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOXMasaryk UniversityBrnoCzech Republic
- Faculty of ScienceDepartment of Experimental BiologyMasaryk UniversityBrnoCzech Republic
- International Clinical Research CenterSt. Anne's University HospitalBrnoCzech Republic
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23
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Dvorak P, Bednar D, Vanacek P, Balek L, Eiselleova L, Stepankova V, Sebestova E, Kunova Bosakova M, Konecna Z, Mazurenko S, Kunka A, Vanova T, Zoufalova K, Chaloupkova R, Brezovsky J, Krejci P, Prokop Z, Dvorak P, Damborsky J. Computer-assisted engineering of hyperstable fibroblast growth factor 2. Biotechnol Bioeng 2018; 115:850-862. [PMID: 29278409 DOI: 10.1002/bit.26531] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 12/10/2017] [Accepted: 12/18/2017] [Indexed: 02/03/2023]
Abstract
Fibroblast growth factors (FGFs) serve numerous regulatory functions in complex organisms, and their corresponding therapeutic potential is of growing interest to academics and industrial researchers alike. However, applications of these proteins are limited due to their low stability. Here we tackle this problem using a generalizable computer-assisted protein engineering strategy to create a unique modified FGF2 with nine mutations displaying unprecedented stability and uncompromised biological function. The data from the characterization of stabilized FGF2 showed a remarkable prediction potential of in silico methods and provided insight into the unfolding mechanism of the protein. The molecule holds a considerable promise for stem cell research and medical or pharmaceutical applications.
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Affiliation(s)
- Pavel Dvorak
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - David Bednar
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - Pavel Vanacek
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - Lukas Balek
- Faculty of Medicine, Department of Biology, Masaryk University, Brno, Czech Republic
| | - Livia Eiselleova
- Faculty of Medicine, Department of Biology, Masaryk University, Brno, Czech Republic
| | - Veronika Stepankova
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic.,Enantis Ltd., Biotechnology Incubator INBIT, Brno, Czech Republic
| | - Eva Sebestova
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | | | - Zaneta Konecna
- Faculty of Medicine, Department of Biology, Masaryk University, Brno, Czech Republic
| | - Stanislav Mazurenko
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - Antonin Kunka
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - Tereza Vanova
- Faculty of Medicine, Department of Biology, Masaryk University, Brno, Czech Republic
| | - Karolina Zoufalova
- Faculty of Medicine, Department of Biology, Masaryk University, Brno, Czech Republic
| | - Radka Chaloupkova
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Jan Brezovsky
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Pavel Krejci
- Faculty of Medicine, Department of Biology, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Zbynek Prokop
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Petr Dvorak
- Faculty of Medicine, Department of Biology, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Jiri Damborsky
- Faculty of Science, Department of Experimental Biology, Loschmidt Laboratories, Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic.,Faculty of Science, Department of Experimental Biology, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
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24
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Balek L, Nemec P, Konik P, Kunova Bosakova M, Varecha M, Gudernova I, Medalova J, Krakow D, Krejci P. Proteomic analyses of signalling complexes associated with receptor tyrosine kinase identify novel members of fibroblast growth factor receptor 3 interactome. Cell Signal 2018; 42:144-154. [DOI: 10.1016/j.cellsig.2017.10.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 09/13/2017] [Accepted: 10/05/2017] [Indexed: 01/08/2023]
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25
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Ghosh S, Scozzaro S, Ramos AR, Delcambre S, Chevalier C, Krejci P, Erneux C. Inhibition of SHIP2 activity inhibits cell migration and could prevent metastasis in breast cancer cells. J Cell Sci 2018; 131:jcs.216408. [DOI: 10.1242/jcs.216408] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 07/06/2018] [Indexed: 12/13/2022] Open
Abstract
Metastasis of breast cancer cells to distant organs is responsible for approximately 50 % in cancer related deaths in women worldwide. SHIP2 is a phosphoinositide 5-phosphatase for PI(3,4,5)P3 and PI(4,5)P2. Through depletion of SHIP2 in triple negative MDA-MB-231 cells and the use of SHIP2 inhibitors, it appeared that cell migration is positively controlled by SHIP2. The effect of SHIP2 on migration, observed in MDA-MB-231 cells, appears to be mediated by PI(3,4)P2. Adhesion on fibronectin is always increased in SHIP2 depleted cells. Apoptosis measured in MDA-MB-231 cells is also increased in SHIP2 depleted cells as compared to control cells. In xenograft mice, SHIP2 depleted MDA-MB-231 cells form significantly smaller tumors compared to control cells and less metastasis detected in lung sections. Our data reveal a general role of SHIP2 in the control of cell migration in breast cancer cells and a second messenger role for PI(3,4)P2 in the migration mechanism. In this model, SHIP2 function on apoptosis on cells incubated in vitro, or in mice tumor digested cells, could account for its role on tumor growth determined in vivo.
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Affiliation(s)
- Somadri Ghosh
- IRIBHM, Campus Erasme, ULB Bâtiment C, 808 route de Lennik 1070 Bruxelles, Belgium
| | - Samuel Scozzaro
- IRIBHM, Campus Erasme, ULB Bâtiment C, 808 route de Lennik 1070 Bruxelles, Belgium
| | - Ana Raquel Ramos
- IRIBHM, Campus Erasme, ULB Bâtiment C, 808 route de Lennik 1070 Bruxelles, Belgium
| | | | - Clément Chevalier
- Center for Microscopy and Molecular Imaging ULB, 12 rue des professeurs Jeener et Brachet, 6041 Charleroi, Belgium
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic
- International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
| | - Christophe Erneux
- IRIBHM, Campus Erasme, ULB Bâtiment C, 808 route de Lennik 1070 Bruxelles, Belgium
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26
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Balek L, Gudernova I, Vesela I, Hampl M, Oralova V, Kunova Bosakova M, Varecha M, Nemec P, Hall T, Abbadessa G, Hatch N, Buchtova M, Krejci P. ARQ 087 inhibits FGFR signaling and rescues aberrant cell proliferation and differentiation in experimental models of craniosynostoses and chondrodysplasias caused by activating mutations in FGFR1, FGFR2 and FGFR3. Bone 2017; 105:57-66. [PMID: 28826843 DOI: 10.1016/j.bone.2017.08.016] [Citation(s) in RCA: 15] [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: 12/17/2016] [Revised: 08/17/2017] [Accepted: 08/18/2017] [Indexed: 01/16/2023]
Abstract
Tyrosine kinase inhibitors are being developed for therapy of malignancies caused by oncogenic FGFR signaling but little is known about their effect in congenital chondrodysplasias or craniosynostoses that associate with activating FGFR mutations. Here, we investigated the effects of novel FGFR inhibitor, ARQ 087, in experimental models of aberrant FGFR3 signaling in cartilage. In cultured chondrocytes, ARQ 087 efficiently rescued all major effects of pathological FGFR3 activation, i.e. inhibition of chondrocyte proliferation, loss of extracellular matrix and induction of premature senescence. In ex vivo tibia organ cultures, ARQ 087 restored normal growth plate architecture and eliminated the suppressing FGFR3 effect on chondrocyte hypertrophic differentiation, suggesting that it targets the FGFR3 pathway specifically, i.e. without interference with other pro-growth pathways. Moreover, ARQ 087 inhibited activity of FGFR1 and FGFR2 mutants associated with Pfeiffer, Apert and Beare-Stevenson craniosynostoses, and rescued FGFR-driven excessive osteogenic differentiation in mouse mesenchymal micromass cultures or in ex vivo calvarial organ cultures. Our data warrant further development of ARQ 087 for clinical use in skeletal disorders caused by activating FGFR mutations.
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Affiliation(s)
- Lukas Balek
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, 62500 Brno, Czech Republic; Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic
| | - Iva Gudernova
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic
| | - Iva Vesela
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic
| | - Marek Hampl
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, 62500 Brno, Czech Republic; Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic
| | - Veronika Oralova
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic
| | | | - Miroslav Varecha
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic; International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
| | - Pavel Nemec
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic; International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
| | | | | | - Nan Hatch
- University of Michigan School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Marcela Buchtova
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, 62500 Brno, Czech Republic; Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 60200 Brno, Czech Republic.
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic; International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic.
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27
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Gudernova I, Balek L, Varecha M, Kucerova JF, Kunova Bosakova M, Fafilek B, Palusova V, Uldrijan S, Trantirek L, Krejci P. Inhibitor repurposing reveals ALK, LTK, FGFR, RET and TRK kinases as the targets of AZD1480. Oncotarget 2017; 8:109319-109331. [PMID: 29312610 PMCID: PMC5752523 DOI: 10.18632/oncotarget.22674] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 10/28/2017] [Indexed: 01/29/2023] Open
Abstract
Many tyrosine kinase inhibitors (TKIs) have failed to reach human use due to insufficient activity in clinical trials. However, the failed TKIs may still benefit patients if their other kinase targets are identified by providing treatment focused on syndromes driven by these kinases. Here, we searched for novel targets of AZD1480, an inhibitor of JAK2 kinase that recently failed phase two cancer clinical trials due to a lack of activity. Twenty seven human receptor tyrosine kinases (RTKs) and 153 of their disease-associated mutants were in-cell profiled for activity in the presence of AZD1480 using a newly developed RTK plasmid library. We demonstrate that AZD1480 inhibits ALK, LTK, FGFR1-3, RET and TRKA-C kinases and uncover a physical basis of this specificity. The RTK activity profiling described here facilitates inhibitor repurposing by enabling rapid and efficient identification of novel TKI targets in cells.
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Affiliation(s)
- Iva Gudernova
- Department of Biology, Faculty of Medicine, 62500 Brno, Czech Republic
| | - Lukas Balek
- Department of Biology, Faculty of Medicine, 62500 Brno, Czech Republic
| | - Miroslav Varecha
- Department of Biology, Faculty of Medicine, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
| | | | | | - Bohumil Fafilek
- Department of Biology, Faculty of Medicine, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
| | - Veronika Palusova
- Department of Biology, Faculty of Medicine, 62500 Brno, Czech Republic
| | - Stjepan Uldrijan
- Department of Biology, Faculty of Medicine, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
| | - Lukas Trantirek
- Central European Institute of Technology, Masaryk University, 62500 Brno, Czech Republic
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, 62500 Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
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28
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Vanova T, Konecna Z, Zbonakova Z, La Venuta G, Zoufalova K, Jelinkova S, Varecha M, Rotrekl V, Krejci P, Nickel W, Dvorak P, Kunova Bosakova M. Tyrosine Kinase Expressed in Hepatocellular Carcinoma, TEC, Controls Pluripotency and Early Cell Fate Decisions of Human Pluripotent Stem Cells via Regulation of Fibroblast Growth Factor-2 Secretion. Stem Cells 2017. [PMID: 28631381 DOI: 10.1002/stem.2660] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Human pluripotent stem cells (hPSC) require signaling provided by fibroblast growth factor (FGF) receptors. This can be initiated by the recombinant FGF2 ligand supplied exogenously, but hPSC further support their niche by secretion of endogenous FGF2. In this study, we describe a role of tyrosine kinase expressed in hepatocellular carcinoma (TEC) kinase in this process. We show that TEC-mediated FGF2 secretion is essential for hPSC self-renewal, and its lack mediates specific differentiation. Following both short hairpin RNA- and small interfering RNA-mediated TEC knockdown, hPSC secretes less FGF2. This impairs hPSC proliferation that can be rescued by increasing amounts of recombinant FGF2. TEC downregulation further leads to a lower expression of the pluripotency markers, an improved priming towards neuroectodermal lineage, and a failure to develop cardiac mesoderm. Our data thus demonstrate that TEC is yet another regulator of FGF2-mediated hPSC pluripotency and differentiation. Stem Cells 2017;35:2050-2059.
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Affiliation(s)
- Tereza Vanova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Zaneta Konecna
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Zuzana Zbonakova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | | | - Karolina Zoufalova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Sarka Jelinkova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Miroslav Varecha
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Vladimir Rotrekl
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Walter Nickel
- Heidelberg University Biochemistry Center (BZH), Heidelberg, Germany
| | - Petr Dvorak
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,Heidelberg University Biochemistry Center (BZH), Heidelberg, Germany
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29
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Abstract
Primary cilium is a solitary organelle that emanates from the surface of most postmitotic mammalian cells and serves as a sensory organelle, transmitting the mechanical and chemical cues to the cell. Primary cilia are key coordinators of various signaling pathways during development and maintenance of tissue homeostasis. The emerging evidence implicates primary cilia function in tooth development. Primary cilia are located in the dental epithelium and mesenchyme at early stages of tooth development and later during cell differentiation and production of hard tissues. The cilia are present when interactions between both the epithelium and mesenchyme are required for normal morphogenesis. As the primary cilium coordinates several signaling pathways essential for odontogenesis, ciliary defects can interrupt the latter process. Genetic or experimental alterations of cilia function lead to various developmental defects, including supernumerary or missing teeth, enamel and dentin hypoplasia, or teeth crowding. Moreover, dental phenotypes are observed in ciliopathies, including Bardet-Biedl syndrome, Ellis-van Creveld syndrome, Weyers acrofacial dysostosis, cranioectodermal dysplasia, and oral-facial-digital syndrome, altogether demonstrating that primary cilia play a critical role in regulation of both the early odontogenesis and later differentiation of hard tissue-producing cells. Here, we summarize the current evidence for the localization of primary cilia in dental tissues and the impact of disrupted cilia signaling on tooth development in ciliopathies.
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Affiliation(s)
- M Hampl
- 1 Institute of Animal Physiology and Genetics, v.v.i., Czech Academy of Sciences, Brno, Czech Republic.,2 Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - P Cela
- 1 Institute of Animal Physiology and Genetics, v.v.i., Czech Academy of Sciences, Brno, Czech Republic.,3 Department of Physiology, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
| | - H L Szabo-Rogers
- 4 Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,5 Center for Craniofacial Engineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | | | - H Dosedelova
- 1 Institute of Animal Physiology and Genetics, v.v.i., Czech Academy of Sciences, Brno, Czech Republic
| | - P Krejci
- 6 Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,7 International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - M Buchtova
- 1 Institute of Animal Physiology and Genetics, v.v.i., Czech Academy of Sciences, Brno, Czech Republic.,2 Department of Experimental Biology, Masaryk University, Brno, Czech Republic
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30
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Duran I, Martin JH, Weis MA, Krejci P, Konik P, Li B, Alanay Y, Lietman C, Lee B, Eyre D, Cohn DH, Krakow D. A Chaperone Complex Formed by HSP47, FKBP65, and BiP Modulates Telopeptide Lysyl Hydroxylation of Type I Procollagen. J Bone Miner Res 2017; 32:1309-1319. [PMID: 28177155 PMCID: PMC5466459 DOI: 10.1002/jbmr.3095] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 01/12/2017] [Accepted: 01/30/2017] [Indexed: 12/14/2022]
Abstract
Lysine hydroxylation of type I collagen telopeptides varies from tissue to tissue, and these distinct hydroxylation patterns modulate collagen cross-linking to generate a unique extracellular matrix. Abnormalities in these patterns contribute to pathologies that include osteogenesis imperfecta (OI), fibrosis, and cancer. Telopeptide procollagen modifications are carried out by lysyl hydroxylase 2 (LH2); however, little is known regarding how this enzyme regulates hydroxylation patterns. We identified an ER complex of resident chaperones that includes HSP47, FKBP65, and BiP regulating the activity of LH2. Our findings show that FKBP65 and HSP47 modulate the activity of LH2 to either favor or repress its activity. BiP was also identified as a member of the complex, playing a role in enhancing the formation of the complex. This newly identified ER chaperone complex contributes to our understanding of how LH2 regulates lysyl hydroxylation of type I collagen C-telopeptides to affect the quality of connective tissues. © 2017 American Society for Bone and Mineral Research.
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Affiliation(s)
- Ivan Duran
- Department of Orthopaedic Surgery, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA.,Networking Research Center on Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), University of Malaga, Malaga, Spain
| | - Jorge H Martin
- Department of Orthopaedic Surgery, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA
| | - Mary Ann Weis
- Department of Orthopaedics and Sports Medicine, University of Washington, Seattle, WA, USA
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Peter Konik
- Faculty of Science, University of South Bohemia, Ceske Budejovice, Czech Republic
| | - Bing Li
- Department of Molecular, Cell, and Developmental Biology, University of California at Los Angeles, Los Angeles, CA, USA
| | - Yasemin Alanay
- Pediatric Genetics Unit, Department of Pediatrics, Acibadem University School of Medicine, Istanbul, Turkey
| | - Caressa Lietman
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Brendan Lee
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA.,Howard Hughes Medical Institute, Chevy Chase, MD, USA
| | - David Eyre
- Department of Orthopaedics and Sports Medicine, University of Washington, Seattle, WA, USA
| | - Daniel H Cohn
- Department of Orthopaedic Surgery, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA.,Department of Molecular, Cell, and Developmental Biology, University of California at Los Angeles, Los Angeles, CA, USA
| | - Deborah Krakow
- Department of Human Genetics, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA.,Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA
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31
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Bernatik O, Radaszkiewicz T, Behal M, Dave Z, Witte F, Mahl A, Cernohorsky NH, Krejci P, Stricker S, Bryja V. A Novel Role for the BMP Antagonist Noggin in Sensitizing Cells to Non-canonical Wnt-5a/Ror2/Disheveled Pathway Activation. Front Cell Dev Biol 2017; 5:47. [PMID: 28523267 PMCID: PMC5415574 DOI: 10.3389/fcell.2017.00047] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 04/13/2017] [Indexed: 11/29/2022] Open
Abstract
Mammalian limb development is driven by the integrative input from several signaling pathways; a failure to receive or a misinterpretation of these signals results in skeletal defects. The brachydactylies, a group of overlapping inherited human hand malformation syndromes, are mainly caused by mutations in BMP signaling pathway components. Two closely related forms, Brachydactyly type B2 (BDB2) and BDB1 are caused by mutations in the BMP antagonist Noggin (NOG) and the atypical receptor tyrosine kinase ROR2 that acts as a receptor in the non-canonical Wnt pathway. Genetic analysis of Nog and Ror2 functional interaction via crossing Noggin and Ror2 mutant mice revealed a widening of skeletal elements in compound but not in any of the single mutants, thus indicating genetic interaction. Since ROR2 is a non-canonical Wnt co-receptor specific for Wnt-5a we speculated that this phenotype might be a result of deregulated Wnt-5a signaling activation, which is known to be essential for limb skeletal elements growth and patterning. We show that Noggin potentiates activation of the Wnt-5a-Ror2-Disheveled (Dvl) pathway in mouse embryonic fibroblast (MEF) cells in a Ror2-dependent fashion. Rat chondrosarcoma chondrocytes (RCS), however, are not able to respond to Noggin in this fashion unless growth arrest is induced by FGF2. In summary, our data demonstrate genetic interaction between Noggin and Ror2 and show that Noggin can sensitize cells to Wnt-5a/Ror2-mediated non-canonical Wnt signaling, a feature that in cartilage may depend on the presence of active FGF signaling. These findings indicate an unappreciated function of Noggin that will help to understand BMP and Wnt/PCP signaling pathway interactions.
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Affiliation(s)
- Ondrej Bernatik
- Faculty of Sciences, Institute of Experimental Biology, Masaryk UniversityBrno, Czechia
| | - Tomasz Radaszkiewicz
- Faculty of Sciences, Institute of Experimental Biology, Masaryk UniversityBrno, Czechia
| | - Martin Behal
- Faculty of Sciences, Institute of Experimental Biology, Masaryk UniversityBrno, Czechia
| | - Zankruti Dave
- Faculty of Sciences, Institute of Experimental Biology, Masaryk UniversityBrno, Czechia
| | - Florian Witte
- Institute for Chemistry and Biochemistry, Freie Universität BerlinBerlin, Germany
| | - Annika Mahl
- Institute for Chemistry and Biochemistry, Freie Universität BerlinBerlin, Germany
| | | | - Pavel Krejci
- Faculty of Sciences, Institute of Experimental Biology, Masaryk UniversityBrno, Czechia.,Department of Biology, Faculty of Medicine, Masaryk UniversityBrno, Czechia
| | - Sigmar Stricker
- Institute for Chemistry and Biochemistry, Freie Universität BerlinBerlin, Germany
| | - Vitezslav Bryja
- Faculty of Sciences, Institute of Experimental Biology, Masaryk UniversityBrno, Czechia.,Department of Cytokinetics, Institute of Biophysics AS CR, v.v.i.Brno, Czechia
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32
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Gudernova I, Foldynova-Trantirkova S, Ghannamova BE, Fafilek B, Varecha M, Balek L, Hruba E, Jonatova L, Jelinkova I, Kunova Bosakova M, Trantirek L, Mayer J, Krejci P. One reporter for in-cell activity profiling of majority of protein kinase oncogenes. eLife 2017; 6. [PMID: 28199182 PMCID: PMC5310841 DOI: 10.7554/elife.21536] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 01/31/2017] [Indexed: 12/05/2022] Open
Abstract
In-cell profiling enables the evaluation of receptor tyrosine activity in a complex environment of regulatory networks that affect signal initiation, propagation and feedback. We used FGF-receptor signaling to identify EGR1 as a locus that strongly responds to the activation of a majority of the recognized protein kinase oncogenes, including 30 receptor tyrosine kinases and 154 of their disease-associated mutants. The EGR1 promoter was engineered to enhance trans-activation capacity and optimized for simple screening assays with luciferase or fluorescent reporters. The efficacy of the developed, fully synthetic reporters was demonstrated by the identification of novel targets for two clinically used tyrosine kinase inhibitors, nilotinib and osimertinib. A universal reporter system for in-cell protein kinase profiling will facilitate repurposing of existing anti-cancer drugs and identification of novel inhibitors in high-throughput screening studies. DOI:http://dx.doi.org/10.7554/eLife.21536.001
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Affiliation(s)
- Iva Gudernova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | | | | | - Bohumil Fafilek
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Miroslav Varecha
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Lukas Balek
- Department of Experimental Biology, Faculty of Sciences, Masaryk University, Brno, Czech Republic
| | - Eva Hruba
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Lucie Jonatova
- Department of Experimental Biology, Faculty of Sciences, Masaryk University, Brno, Czech Republic
| | - Iva Jelinkova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | | | - Lukas Trantirek
- Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Jiri Mayer
- Department of Internal Medicine, Hematology and Oncology, Masaryk University Hospital, Brno, Czech Republic
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
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Haugsten EM, Sørensen V, Kunova Bosakova M, de Souza GA, Krejci P, Wiedlocha A, Wesche J. Proximity Labeling Reveals Molecular Determinants of FGFR4 Endosomal Transport. J Proteome Res 2016; 15:3841-3855. [DOI: 10.1021/acs.jproteome.6b00652] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Ellen Margrethe Haugsten
- Department
of Molecular Cell Biology, Institute for Cancer Research, The Norwegian
Radium Hospital, Oslo University Hospital, Montebello, 0379 Oslo, Norway
- Centre
for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Montebello, 0379 Oslo, Norway
| | - Vigdis Sørensen
- Department
of Molecular Cell Biology, Institute for Cancer Research, The Norwegian
Radium Hospital, Oslo University Hospital, Montebello, 0379 Oslo, Norway
- Centre
for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Montebello, 0379 Oslo, Norway
- Department
of Core Facilities, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Montebello, 0379 Oslo, Norway
| | - Michaela Kunova Bosakova
- Department
of Biology, Faculty of Medicine, Masaryk University, Kamenice
5, 625 00 Brno-Bohunice, Czech Republic
| | - Gustavo Antonio de Souza
- Department
of Immunology, Oslo University Hospital−Rikshospitalet and University of Oslo, 0027 Oslo, Norway
- The
Brain Institute, Universidade Federal do Rio Grande do Norte, UFRN, Natal, RN 59078, Brazil
| | - Pavel Krejci
- Department
of Biology, Faculty of Medicine, Masaryk University, Kamenice
5, 625 00 Brno-Bohunice, Czech Republic
- International
Clinical Research Center, St. Anne’s University Hospital, 656
91 Brno, Czech Republic
| | - Antoni Wiedlocha
- Department
of Molecular Cell Biology, Institute for Cancer Research, The Norwegian
Radium Hospital, Oslo University Hospital, Montebello, 0379 Oslo, Norway
- Centre
for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Montebello, 0379 Oslo, Norway
| | - Jørgen Wesche
- Department
of Molecular Cell Biology, Institute for Cancer Research, The Norwegian
Radium Hospital, Oslo University Hospital, Montebello, 0379 Oslo, Norway
- Centre
for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Montebello, 0379 Oslo, Norway
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Cela P, Hampl M, Fu KK, Kunova Bosakova M, Krejci P, Richman JM, Buchtova M. MORN5 Expression during Craniofacial Development and Its Interaction with the BMP and TGFβ Pathways. Front Physiol 2016; 7:378. [PMID: 27630576 PMCID: PMC5005375 DOI: 10.3389/fphys.2016.00378] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Accepted: 08/17/2016] [Indexed: 12/23/2022] Open
Abstract
MORN5 (MORN repeat containing 5) is encoded by a locus positioned on chromosome 17 in the chicken genome. The MORN motif is found in multiple copies in several proteins including junctophilins or phosphatidylinositol phosphate kinase family and the MORN proteins themselves are found across the animal and plant kingdoms. MORN5 protein has a characteristic punctate pattern in the cytoplasm in immunofluorescence imaging. Previously, MORN5 was found among differentially expressed genes in a microarray profiling experiment of the chicken embryo head. Here, we provided in situ hybridization to analyse, in detail, the MORN5 expression in chick craniofacial structures. The expression of MORN5 was first observed at stage HH17-18 (E2.5). MORN5 expression gradually appeared on either side of the primitive oral cavity, within the maxillary region. At stage HH20 (E3), prominent expression was localized in the mandibular prominences lateral to the midline. From stage HH20 up to HH29 (E6), there was strong expression in restricted regions of the maxillary and mandibular prominences. The frontonasal mass (in the midline of the face) expressed MORN5, starting at HH27 (E5). The expression was concentrated in the corners or globular processes, which will ultimately fuse with the cranial edges of the maxillary prominences. MORN5 expression was maintained in the fusion zone up to stage HH29. In sections MORN5 expression was localized preferentially in the mesenchyme. Previously, we examined signals that regulate MORN5 expression in the face based on a previous microarray study. Here, we validated the array results with in situ hybridization and QPCR. MORN5 was downregulated 24 h after Noggin and/or RA treatment. We also determined that BMP pathway genes are downstream of MORN5 following siRNA knockdown. Based on these results, we conclude that MORN5 is both regulated by and required for BMP signaling. The restricted expression of MORN5 in the lip fusion zone shown here supports the human genetic data in which MORN5 variants were associated with increased risk of non-syndromic cleft lip with or without cleft palate.
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Affiliation(s)
- Petra Cela
- Institute of Animal Physiology and Genetics, v.v.i., Academy of Sciences of the Czech RepublicBrno, Czech Republic; Department of Animal Physiology and Immunology, Institute of Experimental Biology, Masaryk UniversityBrno, Czech Republic
| | - Marek Hampl
- Institute of Animal Physiology and Genetics, v.v.i., Academy of Sciences of the Czech RepublicBrno, Czech Republic; Department of Animal Physiology and Immunology, Institute of Experimental Biology, Masaryk UniversityBrno, Czech Republic
| | - Katherine K Fu
- Life Sciences Institute, University of British Columbia Vancouver, BC, Canada
| | | | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk UniversityBrno, Czech Republic; International Clinical Research Center, St. Anne's University HospitalBrno, Czech Republic
| | - Joy M Richman
- Life Sciences Institute, University of British Columbia Vancouver, BC, Canada
| | - Marcela Buchtova
- Institute of Animal Physiology and Genetics, v.v.i., Academy of Sciences of the Czech RepublicBrno, Czech Republic; Department of Animal Physiology and Immunology, Institute of Experimental Biology, Masaryk UniversityBrno, Czech Republic
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Paige Taylor S, Kunova Bosakova M, Varecha M, Balek L, Barta T, Trantirek L, Jelinkova I, Duran I, Vesela I, Forlenza KN, Martin JH, Hampl A, Bamshad M, Nickerson D, Jaworski ML, Song J, Ko HW, Cohn DH, Krakow D, Krejci P. An inactivating mutation in intestinal cell kinase, ICK, impairs hedgehog signalling and causes short rib-polydactyly syndrome. Hum Mol Genet 2016; 25:3998-4011. [PMID: 27466187 DOI: 10.1093/hmg/ddw240] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 06/27/2016] [Accepted: 06/29/2016] [Indexed: 12/30/2022] Open
Abstract
The short rib polydactyly syndromes (SRPS) are a group of recessively inherited, perinatal-lethal skeletal disorders primarily characterized by short ribs, shortened long bones, varying types of polydactyly and concomitant visceral abnormalities. Mutations in several genes affecting cilia function cause SRPS, revealing a role for cilia function in skeletal development. To identify additional SRPS genes and discover novel ciliary molecules required for normal skeletogenesis, we performed exome sequencing in a cohort of patients and identified homozygosity for a missense mutation, p.E80K, in Intestinal Cell Kinase, ICK, in one SRPS family. The p.E80K mutation abolished serine/threonine kinase activity, resulting in altered ICK subcellular and ciliary localization, increased cilia length, aberrant cartilage growth plate structure, defective Hedgehog and altered ERK signalling. These data identify ICK as an SRPS-associated gene and reveal that abnormalities in signalling pathways contribute to defective skeletogenesis.
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Affiliation(s)
- S Paige Taylor
- Department of Human Genetics, University of California Los Angeles, Los Angeles, CA 90095, USA
| | | | - Miroslav Varecha
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic
| | - Lukas Balek
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic
| | - Tomas Barta
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic
| | - Lukas Trantirek
- Central European Institute of Technology, Masaryk University, Kamenice 753/5, 62500 Brno, Czech Republic
| | - Iva Jelinkova
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic
| | - Ivan Duran
- Department of Orthopaedic Surgery.,Department of Human Genetics.,Department of Obstetrics and Gynecology, Orthopaedic Institute for Children, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Iva Vesela
- Institute of Experimental Biology, Masaryk University, 62500 Brno, Czech Republic
| | - Kimberly N Forlenza
- Department of Orthopaedic Surgery.,Department of Human Genetics.,Department of Obstetrics and Gynecology, Orthopaedic Institute for Children, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Jorge H Martin
- Department of Orthopaedic Surgery.,Department of Human Genetics.,Department of Obstetrics and Gynecology, Orthopaedic Institute for Children, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Ales Hampl
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic
| | | | - Michael Bamshad
- Division of Genetic Medicine, Department of Pediatrics, University of Washington, Seattle, WA 98195, USA.,Division of Genetic Medicine, Seattle Children's Hospital, Seattle, WA 98105, USA.,Department of Genome Sciences, University of Washington, Seattle, WA 98195, USA
| | - Deborah Nickerson
- Department of Genome Sciences, University of Washington, Seattle, WA 98195, USA
| | | | - Jieun Song
- College of Pharmacy, Dongguk University-Seoul, Goyang 410-820, Korea
| | - Hyuk Wan Ko
- College of Pharmacy, Dongguk University-Seoul, Goyang 410-820, Korea
| | - Daniel H Cohn
- Department of Orthopaedic Surgery.,International Skeletal Dysplasia Registry, University of California Los Angeles, Los Angeles, CA 90095, USA.,Department of Molecular, Cell and Developmental Biology, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Deborah Krakow
- Department of Human Genetics, University of California Los Angeles, Los Angeles, CA 90095, USA .,Department of Orthopaedic Surgery.,International Skeletal Dysplasia Registry, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic.,Department of Orthopaedic Surgery.,International Clinical Research Center, St. Anne's University Hospital, 65691 Brno, Czech Republic
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Oneda B, Steindl K, Masood R, Reshetnikova I, Krejci P, Baldinger R, Reissmann R, Taralczak M, Guetg A, Wisser J, Fauchère JC, Rauch A. Noninvasive prenatal testing: more caution in counseling is needed in high risk pregnancies with ultrasound abnormalities. Eur J Obstet Gynecol Reprod Biol 2016; 200:72-5. [DOI: 10.1016/j.ejogrb.2016.02.042] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 02/23/2016] [Accepted: 02/29/2016] [Indexed: 01/13/2023]
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Gudernova I, Vesela I, Balek L, Buchtova M, Dosedelova H, Kunova M, Pivnicka J, Jelinkova I, Roubalova L, Kozubik A, Krejci P. Multikinase activity of fibroblast growth factor receptor (FGFR) inhibitors SU5402, PD173074, AZD1480, AZD4547 and BGJ398 compromises the use of small chemicals targeting FGFR catalytic activity for therapy of short-stature syndromes. Hum Mol Genet 2015; 25:9-23. [PMID: 26494904 DOI: 10.1093/hmg/ddv441] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2015] [Indexed: 01/07/2023] Open
Abstract
Activating mutations in the fibroblast growth factor receptor 3 (FGFR3) cause the most common genetic form of human dwarfism, achondroplasia (ACH). Small chemical inhibitors of FGFR tyrosine kinase activity are considered to be viable option for treating ACH, but little experimental evidence supports this claim. We evaluated five FGFR tyrosine kinase inhibitors (TKIs) (SU5402, PD173074, AZD1480, AZD4547 and BGJ398) for their activity against FGFR signaling in chondrocytes. All five TKIs strongly inhibited FGFR activation in cultured chondrocytes and limb rudiment cultures, completely relieving FGFR-mediated inhibition of chondrocyte proliferation and maturation. In contrast, TKI treatment of newborn mice did not improve skeletal growth and had lethal toxic effects on the liver, lungs and kidneys. In cell-free kinase assays as well as in vitro and in vivo cell assays, none of the tested TKIs demonstrated selectivity for FGFR3 over three other FGFR tyrosine kinases. In addition, the TKIs exhibited significant off-target activity when screened against a panel of 14 unrelated tyrosine kinases. This was most extensive in SU5402 and AZD1480, which inhibited DDR2, IGF1R, FLT3, TRKA, FLT4, ABL and JAK3 with efficiencies similar to or greater than those for FGFR. Low target specificity and toxicity of FGFR TKIs thus compromise their use for treatment of ACH. Conceptually, different avenues of therapeutic FGFR3 targeting should be investigated.
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Affiliation(s)
- Iva Gudernova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Iva Vesela
- Institute of Animal Physiology and Genetics AS CR, Brno, Czech Republic, Department of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
| | - Lukas Balek
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, Brno, Czech Republic
| | - Marcela Buchtova
- Institute of Animal Physiology and Genetics AS CR, Brno, Czech Republic, Institute of Experimental Biology, Faculty of Sciences, Masaryk University, Brno, Czech Republic
| | - Hana Dosedelova
- Institute of Animal Physiology and Genetics AS CR, Brno, Czech Republic, Department of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
| | - Michaela Kunova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Jakub Pivnicka
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, Brno, Czech Republic
| | - Iva Jelinkova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic, Institute of Experimental Biology, Faculty of Sciences, Masaryk University, Brno, Czech Republic
| | - Lucie Roubalova
- Department of Clinical Biochemistry, University Hospital, Olomouc, Czech Republic
| | - Alois Kozubik
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, Brno, Czech Republic, Department of Cytokinetics, Institute of Biophysics AS CR, Brno, Czech Republic and
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic, International Clinical Research Center, St Anne's University Hospital, Brno, Czech Republic
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Affiliation(s)
- Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
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Buchtova M, Chaloupkova R, Zakrzewska M, Vesela I, Cela P, Barathova J, Gudernova I, Zajickova R, Trantirek L, Martin J, Kostas M, Otlewski J, Damborsky J, Kozubik A, Wiedlocha A, Krejci P. Instability restricts signaling of multiple fibroblast growth factors. Cell Mol Life Sci 2015; 72:2445-59. [PMID: 25854632 PMCID: PMC11113989 DOI: 10.1007/s00018-015-1856-8] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 02/07/2015] [Accepted: 02/09/2015] [Indexed: 10/24/2022]
Abstract
Fibroblast growth factors (FGFs) deliver extracellular signals that govern many developmental and regenerative processes, but the mechanisms regulating FGF signaling remain incompletely understood. Here, we explored the relationship between intrinsic stability of FGF proteins and their biological activity for all 18 members of the FGF family. We report that FGF1, FGF3, FGF4, FGF6, FGF8, FGF9, FGF10, FGF16, FGF17, FGF18, FGF20, and FGF22 exist as unstable proteins, which are rapidly degraded in cell cultivation media. Biological activity of FGF1, FGF3, FGF4, FGF6, FGF8, FGF10, FGF16, FGF17, and FGF20 is limited by their instability, manifesting as failure to activate FGF receptor signal transduction over long periods of time, and influence specific cell behavior in vitro and in vivo. Stabilization via exogenous heparin binding, introduction of stabilizing mutations or lowering the cell cultivation temperature rescues signaling of unstable FGFs. Thus, the intrinsic ligand instability is an important elementary level of regulation in the FGF signaling system.
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Affiliation(s)
- Marcela Buchtova
- Department of Anatomy, Histology and Embryology, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
- Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Brno, Czech Republic
- Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - Radka Chaloupkova
- Loschmidt Laboratories, Department of Experimental Biology and Research Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic
| | | | - Iva Vesela
- Department of Anatomy, Histology and Embryology, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
- Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - Petra Cela
- Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Brno, Czech Republic
- Department of Experimental Biology, Masaryk University, Brno, Czech Republic
| | - Jana Barathova
- Department of Biology, Faculty of Medicine, Masaryk University, Room A3/246, Kamenice 5, 625 00 Brno, Czech Republic
| | - Iva Gudernova
- Department of Biology, Faculty of Medicine, Masaryk University, Room A3/246, Kamenice 5, 625 00 Brno, Czech Republic
| | - Renata Zajickova
- Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Brno, Czech Republic
| | - Lukas Trantirek
- Central European Institute of Technology, Masaryk University, Brno, Czech Republic
- Bijvoet Center for Biomolecular Research, Utrecht University, Utrecht, The Netherlands
| | - Jorge Martin
- Medical Genetics Institute, Cedars-Sinai Medical Center, Los Angeles, CA USA
| | - Michal Kostas
- Department of Protein Biotechnology, University of Wroclaw, Wroclaw, Poland
| | - Jacek Otlewski
- Department of Protein Engineering, University of Wroclaw, Wroclaw, Poland
| | - Jiri Damborsky
- Loschmidt Laboratories, Department of Experimental Biology and Research Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czech Republic
| | - Alois Kozubik
- Department of Experimental Biology, Masaryk University, Brno, Czech Republic
- Department of Cytokinetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, Brno, Czech Republic
| | - Antoni Wiedlocha
- Centre for Cancer Biomedicine, University of Oslo, Oslo, Norway
- Department of Biochemistry, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Pavel Krejci
- Department of Biology, Faculty of Medicine, Masaryk University, Room A3/246, Kamenice 5, 625 00 Brno, Czech Republic
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czech Republic
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA USA
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Kant SG, Cervenkova I, Balek L, Trantirek L, Santen GWE, de Vries MC, van Duyvenvoorde HA, van der Wielen MJR, Verkerk AJMH, Uitterlinden AG, Hannema SE, Wit JM, Oostdijk W, Krejci P, Losekoot M. A novel variant of FGFR3 causes proportionate short stature. Eur J Endocrinol 2015; 172:763-70. [PMID: 25777271 DOI: 10.1530/eje-14-0945] [Citation(s) in RCA: 36] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 03/16/2015] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Mutations of the fibroblast growth factor receptor 3 (FGFR3) cause various forms of short stature, of which the least severe phenotype is hypochondroplasia, mainly characterized by disproportionate short stature. Testing for an FGFR3 mutation is currently not part of routine diagnostic testing in children with short stature without disproportion. DESIGN A three-generation family A with dominantly transmitted proportionate short stature was studied by whole-exome sequencing to identify the causal gene mutation. Functional studies and protein modeling studies were performed to confirm the pathogenicity of the mutation found in FGFR3. We performed Sanger sequencing in a second family B with dominant proportionate short stature and identified a rare variant in FGFR3. METHODS Exome sequencing and/or Sanger sequencing was performed, followed by functional studies using transfection of the mutant FGFR3 into cultured cells; homology modeling was used to construct a three-dimensional model of the two FGFR3 variants. RESULTS A novel p.M528I mutation in FGFR3 was detected in family A, which segregates with short stature and proved to be activating in vitro. In family B, a rare variant (p.F384L) was found in FGFR3, which did not segregate with short stature and showed normal functionality in vitro compared with WT. CONCLUSIONS Proportionate short stature can be caused by a mutation in FGFR3. Sequencing of this gene can be considered in patients with short stature, especially when there is an autosomal dominant pattern of inheritance. However, functional studies and segregation studies should be performed before concluding that a variant is pathogenic.
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Affiliation(s)
- Sarina G Kant
- Department of Clinical GeneticsLeiden University Medical Center, PO Box 9600, 2300RC, Leiden, The NetherlandsDepartment of BiologyFaculty of MedicineCentral European Institute of TechnologyMasaryk University, Brno, Czech RepublicDepartment of PediatricsLeiden University Medical Center, Leiden, The NetherlandsDepartment of Internal MedicineErasmus Medical Center, Rotterdam, The NetherlandsDepartment of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Iveta Cervenkova
- Department of Clinical GeneticsLeiden University Medical Center, PO Box 9600, 2300RC, Leiden, The NetherlandsDepartment of BiologyFaculty of MedicineCentral European Institute of TechnologyMasaryk University, Brno, Czech RepublicDepartment of PediatricsLeiden University Medical Center, Leiden, The NetherlandsDepartment of Internal MedicineErasmus Medical Center, Rotterdam, The NetherlandsDepartment of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Lukas Balek
- Department of Clinical GeneticsLeiden University Medical Center, PO Box 9600, 2300RC, Leiden, The NetherlandsDepartment of BiologyFaculty of MedicineCentral European Institute of TechnologyMasaryk University, Brno, Czech RepublicDepartment of PediatricsLeiden University Medical Center, Leiden, The NetherlandsDepartment of Internal MedicineErasmus Medical Center, Rotterdam, The NetherlandsDepartment of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Lukas Trantirek
- Department of Clinical GeneticsLeiden University Medical Center, PO Box 9600, 2300RC, Leiden, The NetherlandsDepartment of BiologyFaculty of MedicineCentral European Institute of TechnologyMasaryk University, Brno, Czech RepublicDepartment of PediatricsLeiden University Medical Center, Leiden, The NetherlandsDepartment of Internal MedicineErasmus Medical Center, Rotterdam, The NetherlandsDepartment of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Gijs W E Santen
- Department of Clinical GeneticsLeiden University Medical Center, PO Box 9600, 2300RC, Leiden, The NetherlandsDepartment of BiologyFaculty of MedicineCentral European Institute of TechnologyMasaryk University, Brno, Czech RepublicDepartment of PediatricsLeiden University Medical Center, Leiden, The NetherlandsDepartment of Internal MedicineErasmus Medical Center, Rotterdam, The NetherlandsDepartment of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Martine C de Vries
- Department of Clinical GeneticsLeiden University Medical Center, PO Box 9600, 2300RC, Leiden, The NetherlandsDepartment of BiologyFaculty of MedicineCentral European Institute of TechnologyMasaryk University, Brno, Czech RepublicDepartment of PediatricsLeiden University Medical Center, Leiden, The NetherlandsDepartment of Internal MedicineErasmus Medical Center, Rotterdam, The NetherlandsDepartment of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Hermine A van Duyvenvoorde
- Department of Clinical GeneticsLeiden University Medical Center, PO Box 9600, 2300RC, Leiden, The NetherlandsDepartment of BiologyFaculty of MedicineCentral European Institute of TechnologyMasaryk University, Brno, Czech RepublicDepartment of PediatricsLeiden University Medical Center, Leiden, The NetherlandsDepartment of Internal MedicineErasmus Medical Center, Rotterdam, The NetherlandsDepartment of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Michiel J R van der Wielen
- Department of Clinical GeneticsLeiden University Medical Center, PO Box 9600, 2300RC, Leiden, The NetherlandsDepartment of BiologyFaculty of MedicineCentral European Institute of TechnologyMasaryk University, Brno, Czech RepublicDepartment of PediatricsLeiden University Medical Center, Leiden, The NetherlandsDepartment of Internal MedicineErasmus Medical Center, Rotterdam, The NetherlandsDepartment of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Annemieke J M H Verkerk
- Department of Clinical GeneticsLeiden University Medical Center, PO Box 9600, 2300RC, Leiden, The NetherlandsDepartment of BiologyFaculty of MedicineCentral European Institute of TechnologyMasaryk University, Brno, Czech RepublicDepartment of PediatricsLeiden University Medical Center, Leiden, The NetherlandsDepartment of Internal MedicineErasmus Medical Center, Rotterdam, The NetherlandsDepartment of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - André G Uitterlinden
- Department of Clinical GeneticsLeiden University Medical Center, PO Box 9600, 2300RC, Leiden, The NetherlandsDepartment of BiologyFaculty of MedicineCentral European Institute of TechnologyMasaryk University, Brno, Czech RepublicDepartment of PediatricsLeiden University Medical Center, Leiden, The NetherlandsDepartment of Internal MedicineErasmus Medical Center, Rotterdam, The NetherlandsDepartment of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Sabine E Hannema
- Department of Clinical GeneticsLeiden University Medical Center, PO Box 9600, 2300RC, Leiden, The NetherlandsDepartment of BiologyFaculty of MedicineCentral European Institute of TechnologyMasaryk University, Brno, Czech RepublicDepartment of PediatricsLeiden University Medical Center, Leiden, The NetherlandsDepartment of Internal MedicineErasmus Medical Center, Rotterdam, The NetherlandsDepartment of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Jan M Wit
- Department of Clinical GeneticsLeiden University Medical Center, PO Box 9600, 2300RC, Leiden, The NetherlandsDepartment of BiologyFaculty of MedicineCentral European Institute of TechnologyMasaryk University, Brno, Czech RepublicDepartment of PediatricsLeiden University Medical Center, Leiden, The NetherlandsDepartment of Internal MedicineErasmus Medical Center, Rotterdam, The NetherlandsDepartment of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Wilma Oostdijk
- Department of Clinical GeneticsLeiden University Medical Center, PO Box 9600, 2300RC, Leiden, The NetherlandsDepartment of BiologyFaculty of MedicineCentral European Institute of TechnologyMasaryk University, Brno, Czech RepublicDepartment of PediatricsLeiden University Medical Center, Leiden, The NetherlandsDepartment of Internal MedicineErasmus Medical Center, Rotterdam, The NetherlandsDepartment of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Pavel Krejci
- Department of Clinical GeneticsLeiden University Medical Center, PO Box 9600, 2300RC, Leiden, The NetherlandsDepartment of BiologyFaculty of MedicineCentral European Institute of TechnologyMasaryk University, Brno, Czech RepublicDepartment of PediatricsLeiden University Medical Center, Leiden, The NetherlandsDepartment of Internal MedicineErasmus Medical Center, Rotterdam, The NetherlandsDepartment of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLA, Los Angeles, California, USA Department of Clinical GeneticsLeiden University Medical Center, PO Box 9600, 2300RC, Leiden, The NetherlandsDepartment of BiologyFaculty of MedicineCentral European Institute of TechnologyMasaryk University, Brno, Czech RepublicDepartment of PediatricsLeiden University Medical Center, Leiden, The NetherlandsDepartment of Internal MedicineErasmus Medical Center, Rotterdam, The NetherlandsDepartment of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Monique Losekoot
- Department of Clinical GeneticsLeiden University Medical Center, PO Box 9600, 2300RC, Leiden, The NetherlandsDepartment of BiologyFaculty of MedicineCentral European Institute of TechnologyMasaryk University, Brno, Czech RepublicDepartment of PediatricsLeiden University Medical Center, Leiden, The NetherlandsDepartment of Internal MedicineErasmus Medical Center, Rotterdam, The NetherlandsDepartment of Orthopaedic SurgeryDavid Geffen School of Medicine at UCLA, Los Angeles, California, USA
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Wendt DJ, Dvorak-Ewell M, Bullens S, Lorget F, Bell SM, Peng J, Castillo S, Aoyagi-Scharber M, O'Neill CA, Krejci P, Wilcox WR, Rimoin DL, Bunting S. Neutral endopeptidase-resistant C-type natriuretic peptide variant represents a new therapeutic approach for treatment of fibroblast growth factor receptor 3-related dwarfism. J Pharmacol Exp Ther 2015; 353:132-49. [PMID: 25650377 DOI: 10.1124/jpet.114.218560] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Achondroplasia (ACH), the most common form of human dwarfism, is caused by an activating autosomal dominant mutation in the fibroblast growth factor receptor-3 gene. Genetic overexpression of C-type natriuretic peptide (CNP), a positive regulator of endochondral bone growth, prevents dwarfism in mouse models of ACH. However, administration of exogenous CNP is compromised by its rapid clearance in vivo through receptor-mediated and proteolytic pathways. Using in vitro approaches, we developed modified variants of human CNP, resistant to proteolytic degradation by neutral endopeptidase, that retain the ability to stimulate signaling downstream of the CNP receptor, natriuretic peptide receptor B. The variants tested in vivo demonstrated significantly longer serum half-lives than native CNP. Subcutaneous administration of one of these CNP variants (BMN 111) resulted in correction of the dwarfism phenotype in a mouse model of ACH and overgrowth of the axial and appendicular skeletons in wild-type mice without observable changes in trabecular and cortical bone architecture. Moreover, significant growth plate widening that translated into accelerated bone growth, at hemodynamically tolerable doses, was observed in juvenile cynomolgus monkeys that had received daily subcutaneous administrations of BMN 111. BMN 111 was well tolerated and represents a promising new approach for treatment of patients with ACH.
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Affiliation(s)
- Daniel J Wendt
- BioMarin Pharmaceutical Inc., Novato, California (D.J.W., M.D.-E., Sh.B., F.L., S.M.B., J.P., S.C., M.A.-S., C.A.O., St.B.); and Cedars-Sinai Medical Center, Los Angeles, California (P.K., W.R.W., D.L.R.)
| | - Melita Dvorak-Ewell
- BioMarin Pharmaceutical Inc., Novato, California (D.J.W., M.D.-E., Sh.B., F.L., S.M.B., J.P., S.C., M.A.-S., C.A.O., St.B.); and Cedars-Sinai Medical Center, Los Angeles, California (P.K., W.R.W., D.L.R.)
| | - Sherry Bullens
- BioMarin Pharmaceutical Inc., Novato, California (D.J.W., M.D.-E., Sh.B., F.L., S.M.B., J.P., S.C., M.A.-S., C.A.O., St.B.); and Cedars-Sinai Medical Center, Los Angeles, California (P.K., W.R.W., D.L.R.)
| | - Florence Lorget
- BioMarin Pharmaceutical Inc., Novato, California (D.J.W., M.D.-E., Sh.B., F.L., S.M.B., J.P., S.C., M.A.-S., C.A.O., St.B.); and Cedars-Sinai Medical Center, Los Angeles, California (P.K., W.R.W., D.L.R.)
| | - Sean M Bell
- BioMarin Pharmaceutical Inc., Novato, California (D.J.W., M.D.-E., Sh.B., F.L., S.M.B., J.P., S.C., M.A.-S., C.A.O., St.B.); and Cedars-Sinai Medical Center, Los Angeles, California (P.K., W.R.W., D.L.R.)
| | - Jeff Peng
- BioMarin Pharmaceutical Inc., Novato, California (D.J.W., M.D.-E., Sh.B., F.L., S.M.B., J.P., S.C., M.A.-S., C.A.O., St.B.); and Cedars-Sinai Medical Center, Los Angeles, California (P.K., W.R.W., D.L.R.)
| | - Sianna Castillo
- BioMarin Pharmaceutical Inc., Novato, California (D.J.W., M.D.-E., Sh.B., F.L., S.M.B., J.P., S.C., M.A.-S., C.A.O., St.B.); and Cedars-Sinai Medical Center, Los Angeles, California (P.K., W.R.W., D.L.R.)
| | - Mika Aoyagi-Scharber
- BioMarin Pharmaceutical Inc., Novato, California (D.J.W., M.D.-E., Sh.B., F.L., S.M.B., J.P., S.C., M.A.-S., C.A.O., St.B.); and Cedars-Sinai Medical Center, Los Angeles, California (P.K., W.R.W., D.L.R.)
| | - Charles A O'Neill
- BioMarin Pharmaceutical Inc., Novato, California (D.J.W., M.D.-E., Sh.B., F.L., S.M.B., J.P., S.C., M.A.-S., C.A.O., St.B.); and Cedars-Sinai Medical Center, Los Angeles, California (P.K., W.R.W., D.L.R.)
| | - Pavel Krejci
- BioMarin Pharmaceutical Inc., Novato, California (D.J.W., M.D.-E., Sh.B., F.L., S.M.B., J.P., S.C., M.A.-S., C.A.O., St.B.); and Cedars-Sinai Medical Center, Los Angeles, California (P.K., W.R.W., D.L.R.)
| | - William R Wilcox
- BioMarin Pharmaceutical Inc., Novato, California (D.J.W., M.D.-E., Sh.B., F.L., S.M.B., J.P., S.C., M.A.-S., C.A.O., St.B.); and Cedars-Sinai Medical Center, Los Angeles, California (P.K., W.R.W., D.L.R.)
| | - David L Rimoin
- BioMarin Pharmaceutical Inc., Novato, California (D.J.W., M.D.-E., Sh.B., F.L., S.M.B., J.P., S.C., M.A.-S., C.A.O., St.B.); and Cedars-Sinai Medical Center, Los Angeles, California (P.K., W.R.W., D.L.R.)
| | - Stuart Bunting
- BioMarin Pharmaceutical Inc., Novato, California (D.J.W., M.D.-E., Sh.B., F.L., S.M.B., J.P., S.C., M.A.-S., C.A.O., St.B.); and Cedars-Sinai Medical Center, Los Angeles, California (P.K., W.R.W., D.L.R.)
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Buchtova M, Oralova V, Aklian A, Masek J, Vesela I, Ouyang Z, Obadalova T, Konecna Z, Spoustova T, Pospisilova T, Matula P, Varecha M, Balek L, Gudernova I, Jelinkova I, Duran I, Cervenkova I, Murakami S, Kozubik A, Dvorak P, Bryja V, Krejci P. Fibroblast growth factor and canonical WNT/β-catenin signaling cooperate in suppression of chondrocyte differentiation in experimental models of FGFR signaling in cartilage. Biochim Biophys Acta Mol Basis Dis 2015; 1852:839-50. [PMID: 25558817 DOI: 10.1016/j.bbadis.2014.12.020] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 11/30/2014] [Accepted: 12/27/2014] [Indexed: 11/29/2022]
Abstract
Aberrant fibroblast growth factor (FGF) signaling disturbs chondrocyte differentiation in skeletal dysplasia, but the mechanisms underlying this process remain unclear. Recently, FGF was found to activate canonical WNT/β-catenin pathway in chondrocytes via Erk MAP kinase-mediated phosphorylation of WNT co-receptor Lrp6. Here, we explore the cellular consequences of such a signaling interaction. WNT enhanced the FGF-mediated suppression of chondrocyte differentiation in mouse limb bud micromass and limb organ cultures, leading to inhibition of cartilage nodule formation in micromass cultures, and suppression of growth in cultured limbs. Simultaneous activation of the FGF and WNT/β-catenin pathways resulted in loss of chondrocyte extracellular matrix, expression of genes typical for mineralized tissues and alteration of cellular shape. WNT enhanced the FGF-mediated downregulation of chondrocyte proteoglycan and collagen extracellular matrix via inhibition of matrix synthesis and induction of proteinases involved in matrix degradation. Expression of genes regulating RhoA GTPase pathway was induced by FGF in cooperation with WNT, and inhibition of the RhoA signaling rescued the FGF/WNT-mediated changes in chondrocyte cellular shape. Our results suggest that aberrant FGF signaling cooperates with WNT/β-catenin in suppression of chondrocyte differentiation.
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Affiliation(s)
- Marcela Buchtova
- Department of Anatomy, Histology and Embryology, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic; Institute of Animal Physiology and Genetics AS CR, v.v.i., Brno, Czech Republic
| | - Veronika Oralova
- Institute of Animal Physiology and Genetics AS CR, v.v.i., Brno, Czech Republic
| | - Anie Aklian
- Medical Genetics Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Jan Masek
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, Brno, Czech Republic
| | - Iva Vesela
- Department of Anatomy, Histology and Embryology, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
| | - Zhufeng Ouyang
- Department of Orthopaedics, Case Western Reserve University, Cleveland, OH, USA
| | - Tereza Obadalova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Zaneta Konecna
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Tereza Spoustova
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, Brno, Czech Republic
| | - Tereza Pospisilova
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, Brno, Czech Republic
| | - Petr Matula
- Centre for Biomedical Image Analysis, Faculty of Informatics, Masaryk University, Brno, Czech Republic
| | - Miroslav Varecha
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Lukas Balek
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, Brno, Czech Republic
| | - Iva Gudernova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Iva Jelinkova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Ivan Duran
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Iveta Cervenkova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Shunichi Murakami
- Department of Orthopaedics, Case Western Reserve University, Cleveland, OH, USA
| | - Alois Kozubik
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, Brno, Czech Republic; Department of Cytokinetics, Institute of Biophysics AS CR, v.v.i., Brno, Czech Republic
| | - Petr Dvorak
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Vitezslav Bryja
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, Brno, Czech Republic; Department of Cytokinetics, Institute of Biophysics AS CR, v.v.i., Brno, Czech Republic
| | - Pavel Krejci
- Institute of Experimental Biology, Faculty of Sciences, Masaryk University, Brno, Czech Republic; Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic; International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic.
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43
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Duran I, Nevarez L, Sarukhanov A, Wu S, Lee K, Krejci P, Weis M, Eyre D, Krakow D, Cohn DH. HSP47 and FKBP65 cooperate in the synthesis of type I procollagen. Hum Mol Genet 2014; 24:1918-28. [PMID: 25510505 DOI: 10.1093/hmg/ddu608] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Osteogenesis imperfecta (OI) is a genetic disorder that results in low bone mineral density and brittle bones. Most cases result from dominant mutations in the type I procollagen genes, but mutations in a growing number of genes have been identified that produce autosomal recessive forms of the disease. Among these include mutations in the genes SERPINH1 and FKBP10, which encode the type I procollagen chaperones HSP47 and FKBP65, respectively, and predominantly produce a moderately severe form of OI. Little is known about the biochemical consequences of the mutations and how they produce OI. We have identified a new OI mutation in SERPINH1 that results in destabilization and mislocalization of HSP47 and secondarily has similar effects on FKBP65. We found evidence that HSP47 and FKBP65 act cooperatively during posttranslational maturation of type I procollagen and that FKBP65 and HSP47 but fail to properly interact in mutant HSP47 cells. These results thus reveal a common cellular pathway in cases of OI caused by HSP47 and FKBP65 deficiency.
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Affiliation(s)
| | | | | | - Sulin Wu
- Department of Orthopaedic Surgery
| | - Katrina Lee
- Department of Molecular, Cell, and Developmental Biology, University of California at Los Angeles, Los Angeles, CA 90095, USA
| | - Pavel Krejci
- Department of Pediatrics, David Geffen School of Medicine at the University of California at Los Angeles, Los Angeles, CA 90095, USA, Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Maryann Weis
- Department of Orthopaedics and Sports Medicine, University of Washington, Seattle, WA, USA
| | - David Eyre
- Department of Orthopaedics and Sports Medicine, University of Washington, Seattle, WA, USA
| | - Deborah Krakow
- Department of Orthopaedic Surgery, Department of Human Genetics, Department of Obstetrics and Gynecology and
| | - Daniel H Cohn
- Department of Orthopaedic Surgery, Department of Molecular, Cell, and Developmental Biology, University of California at Los Angeles, Los Angeles, CA 90095, USA
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44
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Horakova D, Cela P, Krejci P, Balek L, Moravcova Balkova S, Matalova E, Buchtova M. Effect of FGFR inhibitors on chicken limb development. Dev Growth Differ 2014; 56:555-72. [DOI: 10.1111/dgd.12156] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2013] [Revised: 07/30/2014] [Accepted: 08/07/2014] [Indexed: 11/26/2022]
Affiliation(s)
- Dana Horakova
- Department of Anatomy, Histology and Embryology; Faculty of Veterinary Medicine; University of Veterinary and Pharmaceutical Sciences; Brno Czech Republic
| | - Petra Cela
- Institute of Animal Physiology and Genetics, v.v.i.; Academy of Sciences of the Czech Republic; Brno Czech Republic
- Department of Animal Physiology and Immunology; Institute of Experimental Biology; Masaryk University; Brno Czech Republic
| | - Pavel Krejci
- Department of Animal Physiology and Immunology; Institute of Experimental Biology; Masaryk University; Brno Czech Republic
- Department of Biology; Faculty of Medicine; Masaryk University; Brno Czech Republic
| | - Lukas Balek
- Department of Animal Physiology and Immunology; Institute of Experimental Biology; Masaryk University; Brno Czech Republic
- Department of Biology; Faculty of Medicine; Masaryk University; Brno Czech Republic
| | - Simona Moravcova Balkova
- Institute of Animal Physiology and Genetics, v.v.i.; Academy of Sciences of the Czech Republic; Brno Czech Republic
- Clinic of Stomatology, St. Anne's Faculty Hospital and Faculty of Medicine; Masaryk University; Brno Czech Republic
| | - Eva Matalova
- Institute of Animal Physiology and Genetics, v.v.i.; Academy of Sciences of the Czech Republic; Brno Czech Republic
- Department of Physiology; Faculty of Veterinary Medicine; University of Veterinary and Pharmaceutical Sciences; Brno Czech Republic
| | - Marcela Buchtova
- Department of Anatomy, Histology and Embryology; Faculty of Veterinary Medicine; University of Veterinary and Pharmaceutical Sciences; Brno Czech Republic
- Institute of Animal Physiology and Genetics, v.v.i.; Academy of Sciences of the Czech Republic; Brno Czech Republic
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45
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Krejci P, Kunova M, Kubikova I, Trantirek L, Kozubik A, Dvorak P. Expression of FGF19 in human embryonic stem cells. Stem Cells 2014; 31:2582-4. [PMID: 23934687 DOI: 10.1002/stem.1493] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Revised: 07/01/2013] [Accepted: 07/15/2013] [Indexed: 01/20/2023]
Affiliation(s)
- Pavel Krejci
- Department of Cytokinetics, Institute of Biophysics ASCR, Brno, Czech Republic; Department of Animal Physiology and Immunology, Institute of Experimental Biology, Brno, Czech Republic
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46
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Oneda B, Baldinger R, Reissmann R, Reshetnikova I, Krejci P, Masood R, Ochsenbein-Kölble N, Bartholdi D, Steindl K, Morotti D, Faranda M, Baumer A, Asadollahi R, Joset P, Niedrist D, Breymann C, Hebisch G, Hüsler M, Mueller R, Prentl E, Wisser J, Zimmermann R, Rauch A. High-resolution chromosomal microarrays in prenatal diagnosis significantly increase diagnostic power. Prenat Diagn 2014; 34:525-33. [PMID: 24919595 DOI: 10.1002/pd.4342] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 02/10/2014] [Accepted: 02/10/2014] [Indexed: 12/25/2022]
Abstract
OBJECTIVE The objective of this study was to determine for the first time the reliability and the diagnostic power of high-resolution microarray testing in routine prenatal diagnostics. METHODS We applied high-resolution chromosomal microarray testing in 464 cytogenetically normal prenatal samples with any indication for invasive testing. RESULTS High-resolution testing revealed a diagnostic yield of 6.9% and 1.6% in cases of fetal ultrasound anomalies and cases of advanced maternal age (AMA), respectively, which is similar to previous studies using low-resolution microarrays. In three (0.6%) additional cases with an indication of AMA, an aberration in susceptibility risk loci was detected. Moreover, one case (0.2%) showed an X-linked aberration in a female fetus, a finding relevant for future family planning. We found the rate of cases, in which the parents had to be tested for interpretation of unreported copy number variants (3.7%), and the rate of remaining variants of unknown significance (0.4%) acceptably low. Of note, these findings did not cause termination of pregnancy after expert genetic counseling. The 0.4% rate of confined placental mosaicism was similar to that observed by conventional karyotyping and notably involved a case of placental microdeletion. CONCLUSION High-resolution prenatal microarray testing is a reliable technique that increases diagnostic yield by at least 17.3% when compared with conventional karyotyping, without an increase in the frequency of variants of uncertain significance.
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Affiliation(s)
- Beatrice Oneda
- Institute of Medical Genetics, University of Zurich, Zurich, Switzerland
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Salazar L, Kashiwada T, Krejci P, Meyer AN, Casale M, Hallowell M, Wilcox WR, Donoghue DJ, Thompson LM. Fibroblast growth factor receptor 3 interacts with and activates TGFβ-activated kinase 1 tyrosine phosphorylation and NFκB signaling in multiple myeloma and bladder cancer. PLoS One 2014; 9:e86470. [PMID: 24466111 PMCID: PMC3900522 DOI: 10.1371/journal.pone.0086470] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [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: 08/19/2013] [Accepted: 12/09/2013] [Indexed: 12/31/2022] Open
Abstract
Cancer is a major public health problem worldwide. In the United States alone, 1 in 4 deaths is due to cancer and for 2013 a total of 1,660,290 new cancer cases and 580,350 cancer-related deaths are projected. Comprehensive profiling of multiple cancer genomes has revealed a highly complex genetic landscape in which a large number of altered genes, varying from tumor to tumor, impact core biological pathways and processes. This has implications for therapeutic targeting of signaling networks in the development of treatments for specific cancers. The NFκB transcription factor is constitutively active in a number of hematologic and solid tumors, and many signaling pathways implicated in cancer are likely connected to NFκB activation. A critical mediator of NFκB activity is TGFβ-activated kinase 1 (TAK1). Here, we identify TAK1 as a novel interacting protein and target of fibroblast growth factor receptor 3 (FGFR3) tyrosine kinase activity. We further demonstrate that activating mutations in FGFR3 associated with both multiple myeloma and bladder cancer can modulate expression of genes that regulate NFκB signaling, and promote both NFκB transcriptional activity and cell adhesion in a manner dependent on TAK1 expression in both cancer cell types. Our findings suggest TAK1 as a potential therapeutic target for FGFR3-associated cancers, and other malignancies in which TAK1 contributes to constitutive NFκB activation.
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MESH Headings
- Apoptosis
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Blotting, Western
- Cell Adhesion
- Cell Proliferation
- Gene Expression Profiling
- Humans
- Immunoprecipitation
- MAP Kinase Kinase Kinases/genetics
- MAP Kinase Kinase Kinases/metabolism
- Multiple Myeloma/genetics
- Multiple Myeloma/metabolism
- Multiple Myeloma/pathology
- NF-kappa B/genetics
- NF-kappa B/metabolism
- Oligonucleotide Array Sequence Analysis
- Peptide Fragments
- Phosphorylation
- RNA, Messenger/genetics
- Real-Time Polymerase Chain Reaction
- Receptor, Fibroblast Growth Factor, Type 3/genetics
- Receptor, Fibroblast Growth Factor, Type 3/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Signal Transduction
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
- Transforming Growth Factor beta/genetics
- Transforming Growth Factor beta/metabolism
- Tumor Cells, Cultured
- Two-Hybrid System Techniques
- Tyrosine/metabolism
- Urinary Bladder Neoplasms/genetics
- Urinary Bladder Neoplasms/metabolism
- Urinary Bladder Neoplasms/pathology
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Affiliation(s)
- Lisa Salazar
- Department of Psychiatry and Human Behavior, University of California Irvine, Irvine, California, United States of America
| | - Tamara Kashiwada
- Department of Biological Chemistry, University of California Irvine, Irvine, California, United States of America
| | - Pavel Krejci
- Medical Genetics Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
- Institute of Experimental Biology, Masaryk University and Department of Cytokinetics, Institute of Biophysics AS CR, v.v.i., Brno, Czech Republic
- Department of Pediatrics, UCLA School of Medicine, Los Angeles, California, United States of America
| | - April N. Meyer
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, United States of America
| | - Malcolm Casale
- Department of Neurobiology and Behavior, University of California Irvine, Irvine, California, United States of America
| | - Matthew Hallowell
- Department of Psychiatry and Human Behavior, University of California Irvine, Irvine, California, United States of America
| | - William R. Wilcox
- Medical Genetics Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
- Department of Pediatrics, UCLA School of Medicine, Los Angeles, California, United States of America
| | - Daniel J. Donoghue
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, United States of America
- Moores Cancer Center, University of California San Diego, La Jolla, California, United States of America
| | - Leslie Michels Thompson
- Department of Psychiatry and Human Behavior, University of California Irvine, Irvine, California, United States of America
- Department of Biological Chemistry, University of California Irvine, Irvine, California, United States of America
- Department of Neurobiology and Behavior, University of California Irvine, Irvine, California, United States of America
- Chao Family Comprehensive Cancer Center, University of California Irvine, Irvine, California, United States of America
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48
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Ezgu F, Krejci P, Li S, de Sousa C, Graham JM, Hansmann I, He W, Porpora K, Wand D, Wertelecki W, Schneider A, Wilcox WR. Phenotype-genotype correlations in patients with Marinesco-Sjögren syndrome. Clin Genet 2013; 86:74-84. [PMID: 23829326 DOI: 10.1111/cge.12230] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2013] [Revised: 07/02/2013] [Accepted: 07/02/2013] [Indexed: 12/17/2022]
Abstract
Marinesco-Sjögren syndrome (MSS; MIM 248800) is an autosomal recessive disorder characterized by congenital cerebellar ataxia, early cataracts, developmental delay, myopathy and short stature. Alterations in the gene SIL1 cause MSS in some patients with typical findings. In this study, molecular investigations including sequencing of the SIL1 gene, western blotting and microscopic investigations in fibroblast cultures were carried out in a cohort of 15 patients from 14 unrelated families, including the large, inbred family reported by Superneau et al., having the clinical features of MSS to provide insights into the pathophysiology of the disorder. A total of seven different mutations were found in eight of the patients from seven families. The mutations caused loss of the BIP-associated protein (BAP) protein in four patients by western blot. Novel clinical features such as dental abnormalities, iris coloboma, eczema and hormonal abnormalities were noticed in some patients, but there was no clear way to distinguish those with and without SIL1 mutations. Cultured fibroblasts contained numerous cytoplasmic inclusion bodies, similar to those identified in the brain of the whoozy mouse in five unrelated patients, three with and two without SIL1 mutations, suggesting some SIL1 negative patients share a common cellular pathogenesis with those who are SIL1 positive.
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Affiliation(s)
- F Ezgu
- Medical Genetics Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA; Department of Pediatric Metabolic Disorders and Pediatric Genetics, Gazi University Faculty of Medicine, Ankara, Turkey
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49
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Ezgu F, Krejci P, Wilcox WR. Mild clinical presentation and prolonged survival of a patient with fumarase deficiency due to the combination of a known and a novel mutation in FH gene. Gene 2013; 524:403-6. [DOI: 10.1016/j.gene.2013.03.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Accepted: 03/07/2013] [Indexed: 11/30/2022]
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50
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Wang Y, Zhou X, Oberoi K, Phelps R, Couwenhoven R, Sun M, Rezza A, Holmes G, Percival CJ, Friedenthal J, Krejci P, Richtsmeier JT, Huso DL, Rendl M, Jabs EW. p38 Inhibition ameliorates skin and skull abnormalities in Fgfr2 Beare-Stevenson mice. J Clin Invest 2012; 122:2153-64. [PMID: 22585574 DOI: 10.1172/jci62644] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2011] [Accepted: 04/04/2012] [Indexed: 12/21/2022] Open
Abstract
Beare-Stevenson cutis gyrata syndrome (BSS) is a human genetic disorder characterized by skin and skull abnormalities. BSS is caused by mutations in the FGF receptor 2 (FGFR2), but the molecular mechanisms that induce skin and skull abnormalities are unclear. We developed a mouse model of BSS harboring a FGFR2 Y394C mutation and identified p38 MAPK as an important signaling pathway mediating these abnormalities. Fgfr2+/Y394C mice exhibited epidermal hyperplasia and premature closure of cranial sutures (craniosynostosis) due to abnormal cell proliferation and differentiation. We found ligand-independent phosphorylation of FGFR2 and activation of p38 signaling in mutant skin and calvarial tissues. Treating Fgfr2+/Y394C mice with a p38 kinase inhibitor attenuated skin abnormalities by reversing cell proliferation and differentiation to near normal levels. This study reveals the pleiotropic effects of the FGFR2 Y394C mutation evidenced by cutis gyrata, acanthosis nigricans, and craniosynostosis and provides a useful model for investigating the molecular mechanisms of skin and skull development. The demonstration of a pathogenic role for p38 activation may lead to the development of therapeutic strategies for BSS and related conditions, such as acanthosis nigricans or craniosynostosis.
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Affiliation(s)
- Yingli Wang
- Department of Genetics and Genomic Sciences, Mount Sinai School of Medicine, New York, New York 10029, USA
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