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Gáspár I, Phea LJ, McClintock MA, Heber S, Bullock SL, Ephrussi A. An RNA-based feed-forward mechanism ensures motor switching in oskar mRNA transport. J Cell Biol 2023; 222:214126. [PMID: 37213090 DOI: 10.1083/jcb.202301113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 04/01/2023] [Accepted: 04/05/2023] [Indexed: 05/23/2023] Open
Abstract
Regulated recruitment and activity of motor proteins is essential for intracellular transport of cargoes, including messenger ribonucleoprotein complexes (RNPs). Here, we show that orchestration of oskar RNP transport in the Drosophila germline relies on interplay between two double-stranded RNA-binding proteins, Staufen and the dynein adaptor Egalitarian (Egl). We find that Staufen antagonizes Egl-mediated transport of oskar mRNA by dynein both in vitro and in vivo. Following delivery of nurse cell-synthesized oskar mRNA into the oocyte by dynein, recruitment of Staufen to the RNPs results in dissociation of Egl and a switch to kinesin-1-mediated translocation of the mRNA to its final destination at the posterior pole of the oocyte. We additionally show that Egl associates with staufen (stau) mRNA in the nurse cells, mediating its enrichment and translation in the ooplasm. Our observations identify a novel feed-forward mechanism, whereby dynein-dependent accumulation of stau mRNA, and thus protein, in the oocyte enables motor switching on oskar RNPs by downregulating dynein activity.
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Affiliation(s)
- Imre Gáspár
- Developmental Biology Unit, European Molecular Biology Laboratory , Heidelberg, Germany
| | - Ly Jane Phea
- Developmental Biology Unit, European Molecular Biology Laboratory , Heidelberg, Germany
| | - Mark A McClintock
- Division of Cell Biology, MRC Laboratory of Molecular Biology , Cambridge, UK
| | - Simone Heber
- Developmental Biology Unit, European Molecular Biology Laboratory , Heidelberg, Germany
| | - Simon L Bullock
- Division of Cell Biology, MRC Laboratory of Molecular Biology , Cambridge, UK
| | - Anne Ephrussi
- Developmental Biology Unit, European Molecular Biology Laboratory , Heidelberg, Germany
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2
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Gassler J, Kobayashi W, Gáspár I, Ruangroengkulrith S, Mohanan A, Gómez Hernández L, Kravchenko P, Kümmecke M, Lalic A, Rifel N, Ashburn RJ, Zaczek M, Vallot A, Cuenca Rico L, Ladstätter S, Tachibana K. Zygotic genome activation by the totipotency pioneer factor Nr5a2. Science 2022; 378:1305-1315. [PMID: 36423263 DOI: 10.1126/science.abn7478] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Life begins with a switch in genetic control from the maternal to the embryonic genome during zygotic genome activation (ZGA). Despite its importance, the essential regulators of ZGA remain largely unknown in mammals. On the basis of de novo motif searches, we identified the orphan nuclear receptor Nr5a2 as a key activator of major ZGA in mouse two-cell embryos. Nr5a2 is required for progression beyond the two-cell stage. It binds to its motif within SINE B1/Alu retrotransposable elements found in cis-regulatory regions of ZGA genes. Chemical inhibition suggests that 72% of ZGA genes are regulated by Nr5a2 and potentially other orphan nuclear receptors. Nr5a2 promotes chromatin accessibility during ZGA and binds nucleosomal DNA in vitro. We conclude that Nr5a2 is an essential pioneer factor that regulates ZGA.
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Affiliation(s)
- Johanna Gassler
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany.,Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
| | - Wataru Kobayashi
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Imre Gáspár
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | | | - Adarsh Mohanan
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Laura Gómez Hernández
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Pavel Kravchenko
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Maximilian Kümmecke
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
| | - Aleksandar Lalic
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Nikita Rifel
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Robert John Ashburn
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Maciej Zaczek
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
| | - Antoine Vallot
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
| | - Laura Cuenca Rico
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
| | - Sabrina Ladstätter
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
| | - Kikuë Tachibana
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany.,Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
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Heber S, Gáspár I, Tants JN, Günther J, Moya SMF, Janowski R, Ephrussi A, Sattler M, Niessing D. Staufen2-mediated RNA recognition and localization requires combinatorial action of multiple domains. Nat Commun 2019; 10:1659. [PMID: 30971701 PMCID: PMC6477676 DOI: 10.1038/s41467-019-09655-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 03/20/2019] [Indexed: 11/08/2022] Open
Abstract
Throughout metazoans, Staufen (Stau) proteins are core factors of mRNA localization particles. They consist of three to four double-stranded RNA binding domains (dsRBDs) and a C-terminal dsRBD-like domain. Mouse Staufen2 (mStau2)-like Drosophila Stau (dmStau) contains four dsRBDs. Existing data suggest that only dsRBDs 3-4 are necessary and sufficient for mRNA binding. Here, we show that dsRBDs 1 and 2 of mStau2 bind RNA with similar affinities and kinetics as dsRBDs 3 and 4. While RNA binding by these tandem domains is transient, all four dsRBDs recognize their target RNAs with high stability. Rescue experiments in Drosophila oocytes demonstrate that mStau2 partially rescues dmStau-dependent mRNA localization. In contrast, a rescue with mStau2 bearing RNA-binding mutations in dsRBD1-2 fails, confirming the physiological relevance of our findings. In summary, our data show that the dsRBDs 1-2 play essential roles in the mRNA recognition and function of Stau-family proteins of different species.
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Affiliation(s)
- Simone Heber
- Institute of Pharmaceutical Biotechnology, 89081 Ulm University, Ulm, Germany
- Institute of Structural Biology, Helmholtz Zentrum München, 85764, Neuherberg, Germany
| | - Imre Gáspár
- Developmental Biology Unit, European Molecular Biology Laboratory, 69117, Heidelberg, Germany
- Institute of Molecular Biotechnology, 1030, Vienna, Austria
| | - Jan-Niklas Tants
- Center for Integrated Protein Science Munich at Chair of Biomolecular NMR Spectroscopy, Department Chemistry, Technische Universität München, 85747, Garching, Germany
| | - Johannes Günther
- Center for Integrated Protein Science Munich at Chair of Biomolecular NMR Spectroscopy, Department Chemistry, Technische Universität München, 85747, Garching, Germany
| | - Sandra M Fernandez Moya
- Biomedical Center Munich, Department of Cell Biology, Ludwig-Maximilians-Universität München, 82152, Planegg-Martinsried, Germany
| | - Robert Janowski
- Institute of Structural Biology, Helmholtz Zentrum München, 85764, Neuherberg, Germany
| | - Anne Ephrussi
- Developmental Biology Unit, European Molecular Biology Laboratory, 69117, Heidelberg, Germany
| | - Michael Sattler
- Institute of Structural Biology, Helmholtz Zentrum München, 85764, Neuherberg, Germany
- Center for Integrated Protein Science Munich at Chair of Biomolecular NMR Spectroscopy, Department Chemistry, Technische Universität München, 85747, Garching, Germany
| | - Dierk Niessing
- Institute of Pharmaceutical Biotechnology, 89081 Ulm University, Ulm, Germany.
- Institute of Structural Biology, Helmholtz Zentrum München, 85764, Neuherberg, Germany.
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Szegedi I, Gáspár I, Gyurina K, Zele Z, Kiss C. [Recent advances in pediatric non-Hodgkin lymphoma. Report on a retrospective single-center cohort and review of the literature]. Magy Onkol 2018; 62:204-213. [PMID: 30540862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 10/15/2018] [Indexed: 06/09/2023]
Abstract
Classification, staging and treatment response criteria of pediatric NHL have been revised. Long-term survival reaches ~90% at the expense of severe acute toxicities. The outcome of refractory and relapsed cases is poor. The small number of patients hinders introduction of targeted therapies. Here we summarize principles and perspectives of pediatric NHL supported by results of a retrospective clinical survey. Twenty-five patients (21 boys, 4 girls; mean age: 11.9 years) were registered between 2009 and 2018: 11 Burkitt lymphomas, 4 diffuse large B-cell lymphomas, 5 T-cell lymphoblastic lymphomas, and 1-1 grey-zone lymphoma, anaplastic large-cell lymphoma, cutaneous T-cell lymphoma, angioimmunoblastic lymphoma, and Castleman disease. Remission rate was 22/25, 20/25 patients survived (mean follow-up time: 3.9 years). Chemotherapies according to NHL-BFM 95, CHOP, FAB/LMB96, Inter-B-NHL Ritux 2010, Euro-LB02, and ALCL99 were applied. Adjuvant immunotherapy was applied in patients with mature B-cell NHL (rituximab in 7 cases, obinutuzumab in 2 relapsed cases). In Castleman disease siltuximab was applied.
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Affiliation(s)
- István Szegedi
- Gyermekgyógyászati Intézet, Gyermekhematológiai-onkológiai nem önálló Tanszék, Debreceni Egyetem, Általános Orvostudományi Kar, Debrecen, Hungary.
| | - Imre Gáspár
- Gyermekgyógyászati Intézet, Gyermekhematológiai-onkológiai nem önálló Tanszék, Debreceni Egyetem, Általános Orvostudományi Kar, Debrecen, Hungary.
| | - Katalin Gyurina
- Gyermekgyógyászati Intézet, Gyermekhematológiai-onkológiai nem önálló Tanszék, Debreceni Egyetem, Általános Orvostudományi Kar, Debrecen, Hungary.
| | - Zsuzsa Zele
- Gyermekgyógyászati Intézet, Gyermekhematológiai-onkológiai nem önálló Tanszék, Debreceni Egyetem, Általános Orvostudományi Kar, Debrecen, Hungary.
| | - Csongor Kiss
- Gyermekgyógyászati Intézet, Gyermekhematológiai-onkológiai nem önálló Tanszék, Debreceni Egyetem, Általános Orvostudományi Kar, Debrecen, Hungary.
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Abstract
RNAs of the protein synthesis machinery relocalize to enhance the response to nutrients
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Affiliation(s)
- Imre Gáspár
- Developmental Biology Unit, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany.
| | - Anne Ephrussi
- Developmental Biology Unit, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany.
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Gáspár I, Sysoev V, Komissarov A, Ephrussi A. An RNA-binding atypical tropomyosin recruits kinesin-1 dynamically to oskar mRNPs. EMBO J 2016; 36:319-333. [PMID: 28028052 PMCID: PMC5286366 DOI: 10.15252/embj.201696038] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [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: 11/07/2016] [Revised: 11/28/2016] [Accepted: 11/29/2016] [Indexed: 11/14/2022] Open
Abstract
Localization and local translation of oskar mRNA at the posterior pole of the Drosophila oocyte directs abdominal patterning and germline formation in the embryo. The process requires recruitment and precise regulation of motor proteins to form transport‐competent mRNPs. We show that the posterior‐targeting kinesin‐1 is loaded upon nuclear export of oskar mRNPs, prior to their dynein‐dependent transport from the nurse cells into the oocyte. We demonstrate that kinesin‐1 recruitment requires the DmTropomyosin1‐I/C isoform, an atypical RNA‐binding tropomyosin that binds directly to dimerizing oskar 3′UTRs. Finally, we show that a small but dynamically changing subset of oskar mRNPs gets loaded with inactive kinesin‐1 and that the motor is activated during mid‐oogenesis by the functionalized spliced oskar RNA localization element. This inefficient, dynamic recruitment of Khc decoupled from cargo‐dependent motor activation constitutes an optimized, coordinated mechanism of mRNP transport, by minimizing interference with other cargo‐transport processes and between the cargo‐associated dynein and kinesin‐1.
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Affiliation(s)
- Imre Gáspár
- Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Vasiliy Sysoev
- Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Artem Komissarov
- Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Anne Ephrussi
- Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
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Papp Á, Bene Z, Gáspár I, Nagy B, Kádár L, Márialigeti T, Bánfi A, Baktai G, Balla G, Nagy B. Decreased VEGF Level Is Associated with Elevated Ferritin Concentration in Bronchoalveolar Lavage Fluid of Children with Interstitial Lung Diseases. Respiration 2015; 90:443-450. [PMID: 26473738 DOI: 10.1159/000440888] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2015] [Accepted: 09/01/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND A decreased level of vascular endothelial growth factor (VEGF) was previously described in bronchoalveolar lavage fluid (BALF) of adults with interstitial lung diseases (ILD) due to bronchial epithelial cell apoptosis and its proteolytic degradation. Elevated intrapulmonary ferritin was produced by alveolar cells that promoted oxidative injury in such patients. OBJECTIVES In this study, we analyzed the concentrations of VEGF and ferritin in BALF samples of ILD children and studied the relationship between their levels and the degree of inflammation. METHODS BALF and serum concentration of VEGF as well as ferritin and albumin in BALF samples were measured using enzyme-linked immunosorbent assay in children with idiopathic interstitial pneumonia (n = 16), hypersensitivity pneumonitis (n = 11) and idiopathic pulmonary hemosiderosis (n = 3). Twenty-four age- and gender-matched subjects with suspicious foreign body aspiration served as a control group. RESULTS VEGF per albumin levels in BALF were significantly decreased in ILD children compared to controls (1,075 [784-1,415] pg/mg albumin vs. 2,741 [1,131-4,660] pg/mg albumin, p = 0.0008). These values showed a significant negative correlation with inflammatory markers of total immune cell count in BALF (r = -0.411, p = 0.002) and serum C-reactive protein (r = -0.367, p = 0.006). Although serum VEGF was augmented in ILD children versus controls, no difference was observed among the ILD groups. In addition, BALF ferritin/albumin level (688 [188-1,571] ng/mg albumin vs. 256 [178-350] ng/mg albumin, p = 0.022) was significantly higher than normal in ILD individuals, especially in idiopathic pulmonary hemosiderosis. CONCLUSION Depressed VEGF and increased ferritin in BALF may reflect the severity of chronic pulmonary inflammation in altered respiratory epithelium of childhood ILD.
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Affiliation(s)
- Ágnes Papp
- Department of Pediatrics, Clinical Center, University of Debrecen, Debrecen, Hungary
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Albert K, Koris A, Gáspár I, Rácz G, Vatai G. Production of microemulsion by membrane emulsification: Comparison of empty ceramic tube membrane and membrane equipped with static turbulence promoters. Acta Alimentaria 2014. [DOI: 10.1556/aalim.43.2014.suppl.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Abstract
Spindle assembly and chromosome segregation rely on a complex interplay of biochemical and mechanical processes. Analysis of this interplay requires precise manipulation of endogenous cellular components and high-resolution visualization. Here we provide a protocol for generating an extract from individual Drosophila syncytial embryos that supports repeated mitotic nuclear divisions with native characteristics. In contrast to the large-scale, metaphase-arrested Xenopus egg extract system, this assay enables the serial generation of extracts from single embryos of a genetically tractable organism, and each extract contains dozens of autonomously dividing nuclei that can be prepared and imaged within 60-90 min after embryo collection. We describe the microscopy setup and micropipette production that facilitate single-embryo manipulation, the preparation of embryos and the steps for making functional extracts that allow time-lapse microscopy of mitotic divisions ex vivo. The assay enables a unique combination of genetic, biochemical, optical and mechanical manipulations of the mitotic machinery.
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Affiliation(s)
- Ivo A Telley
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory (EMBL), Heidelberg, Germany.
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10
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Telley IA, Gáspár I, Ephrussi A, Surrey T. Aster migration determines the length scale of nuclear separation in the Drosophila syncytial embryo. J Cell Biol 2012; 197:887-95. [PMID: 22711698 PMCID: PMC3384421 DOI: 10.1083/jcb.201204019] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [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: 04/04/2012] [Accepted: 05/24/2012] [Indexed: 11/22/2022] Open
Abstract
In the early embryo of many species, comparatively small spindles are positioned near the cell center for subsequent cytokinesis. In most insects, however, rapid nuclear divisions occur in the absence of cytokinesis, and nuclei distribute rapidly throughout the large syncytial embryo. Even distribution and anchoring of nuclei at the embryo cortex are crucial for cellularization of the blastoderm embryo. The principles underlying nuclear dispersal in a syncytium are unclear. We established a cell-free system from individual Drosophila melanogaster embryos that supports successive nuclear division cycles with native characteristics. This allowed us to investigate nuclear separation in predefined volumes. Encapsulating nuclei in microchambers revealed that the early cytoplasm is programmed to separate nuclei a distinct distance. Laser microsurgery revealed an important role of microtubule aster migration through cytoplasmic space, which depended on F-actin and cooperated with anaphase spindle elongation. These activities define a characteristic separation length scale that appears to be a conserved property of developing insect embryos.
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Affiliation(s)
- Ivo A Telley
- Cell Biology and Biophysics Unit and 2 Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
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12
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Venkei Z, Gáspár I, Tóth G, Szabad J. α4-Tubulin is involved in rapid formation of long microtubules to push apart the daughter centrosomes during earlyxDrosophilaembryogenesis. J Cell Sci 2006; 119:3238-48. [PMID: 16847053 DOI: 10.1242/jcs.03039] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Although α4-tubulin comprises only about one-fifth of the α-tubulin pool in every Drosophila egg, in the absence of α4-tubulin - in eggs of the kavar0/- hemizygous females - only a tassel of short microtubules forms with two barely separated daughter centrosomes. We report that α4-tubulin is enriched in the long microtubules that embrace the nuclear envelope and suggest that they push apart daughter centrosomes along the nuclear perimeter during the initial cleavage divisions. In vitro tubulin polymerization showed that α4-tubulin is required for rapid tubulin polymerization. Since tubulin polymerization is slow inside eggs of the kavar0/- females, only short microtubules can form within the 4 to 5 minutes allowed for the process. A tassel of short microtubules with two barely separated centrosomes forms in every egg of the Kavar18c/+ females, in which the cytoplasm contains both wild-type and Kavar18c-encoded α4-tubulin with an E82K amino acid substitution (E82K-α4-tubulin). E82K-α4-tubulin is incorporated into the microtubules and renders them unstable. When injected into wild-type early cleavage embryos E82K-α4-tubulin slows down the formation of long microtubules and the separation of the daughter centrosomes. Surprisingly, when injected into late cleavage embryos E82K-α4-tubulin is non-toxic. Similarly, in the neuroblasts, ectopically expressed E82K-α4-tubulin becomes incorporated into the microtubules that grow sufficiently long and function normally.
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Affiliation(s)
- Zsolt Venkei
- Maternal Effect and Embryogenesis Research Group of the Hungarian Academy of Sciences at the University of Szeged, Faculty of Medicine, Department of Biology, Somogyi B. u. 4, H-6720 Szeged, Hungary
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13
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Hadnagy C, Gáspár I, Binder P, Hiszom S. [Iron deficiency causing psychological aberration: clay inhalation (pulverem argillae in nasum ducit)]. Psychiatr Neurol Med Psychol (Leipz) 1983; 35:172-4. [PMID: 6867206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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14
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Hadnagy C, Gáspár I, Binder P, Hiszom S. An unknown form of pica. Haematologica 1979; 64:259. [PMID: 112012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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15
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Szentkirályi E, Pascu R, Gáspár I, Szabó J, Biró C, Máthé O, Hacser L. [Cases of purulent meningitis in children]. Rev Pediatr Obstet Ginecol Pediatr 1978; 27:35-43. [PMID: 418476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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16
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Szentkirályi E, Gáspár I, Szabó L, Szabó J, Ionescu R, Kelemen L. [Observations on several cases of recurrent meningoencephalitis with prolonged evolution due to relapses]. Neurol Psihiatr Neurochir 1971; 16:343-54. [PMID: 5118393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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17
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Szentkirályi E, Gáspár I, Kovács F, Kelemen L. [On hydrocephalus following menintoencephalitis treated with corticoids]. Neurol Psihiatr Neurochir 1970; 15:213-26. [PMID: 5456226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Szenkirályi E, Kovács F, Gáspár I, Szegö V, Kelemen L. [Some clinical and therapeutic aspects of polyradiculoneuritis (observations on 32 cases)]. Neurol Psihiatr Neurochir 1968; 13:399-406. [PMID: 5700475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Kelemen L, Szentkirályi E, Gáspár I, Kovács F, Szegö V, Ionescu R. [Some current clinical and therapeutic aspects of meningoencephalitis]. Med Interna (Bucur) 1968; 20:531-40. [PMID: 5735426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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20
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Szentkirályi E, Szábo L, Szegö V, Kovács F, Gáspár I, Szábo J, Ionescu R, Kelémen L. [Clinical and electroencephalographic correlations in meningoencephalitis]. Neurol Neurochir Psychiatr Pol 1967; 12:407-16. [PMID: 5584338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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21
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Gáspár I. Metastasizing "Carcinoid" Tumor of Jejunum. Am J Pathol 1930; 6:515-524.5. [PMID: 19969926 PMCID: PMC2007314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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22
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Gáspár I. Two of the Rarer Congenital Anomalies of the Heart. Am J Pathol 1929; 5:285-294.3. [PMID: 19969851 PMCID: PMC2007245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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