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Burdine RD, Preston CC, Leonard RJ, Bradley TA, Faustino RS. Nucleoporins in cardiovascular disease. J Mol Cell Cardiol 2020; 141:43-52. [PMID: 32209327 DOI: 10.1016/j.yjmcc.2020.02.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 02/19/2020] [Accepted: 02/25/2020] [Indexed: 01/01/2023]
Abstract
Cardiovascular disease is a pressing health problem with significant global health, societal, and financial burdens. Understanding the molecular basis of polygenic cardiac pathology is thus essential to devising novel approaches for management and treatment. Recent identification of uncharacterized regulatory functions for a class of nuclear envelope proteins called nucleoporins offers the opportunity to understand novel putative mechanisms of cardiac disease development and progression. Consistent reports of nucleoporin deregulation associated with ischemic and dilated cardiomyopathies, arrhythmias and valvular disorders suggests that nucleoporin impairment may be a significant but understudied variable in cardiopathologic disorders. This review discusses and converges existing literature regarding nuclear pore complex proteins and their association with cardiac pathologies, and proposes a role for nucleoporins as facilitators of cardiac disease.
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Affiliation(s)
- Ryan D Burdine
- Genetics and Genomics Group, Sanford Research, 2301 E. 60(th) Street N., Sioux Falls, SD 57104, United States of America; School of Health Sciences, University of South Dakota, 414 E Clark St, Vermillion, SD 57069, United States of America
| | - Claudia C Preston
- Genetics and Genomics Group, Sanford Research, 2301 E. 60(th) Street N., Sioux Falls, SD 57104, United States of America
| | - Riley J Leonard
- Genetics and Genomics Group, Sanford Research, 2301 E. 60(th) Street N., Sioux Falls, SD 57104, United States of America
| | - Tyler A Bradley
- Genetics and Genomics Group, Sanford Research, 2301 E. 60(th) Street N., Sioux Falls, SD 57104, United States of America
| | - Randolph S Faustino
- Genetics and Genomics Group, Sanford Research, 2301 E. 60(th) Street N., Sioux Falls, SD 57104, United States of America; Department of Pediatrics, Sanford School of Medicine of the University of South Dakota, 1400 W. 22(nd) Street, Sioux Falls, SD 57105, United States of America.
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Berto A, Yu J, Morchoisne-Bolhy S, Bertipaglia C, Vallee R, Dumont J, Ochsenbein F, Guerois R, Doye V. Disentangling the molecular determinants for Cenp-F localization to nuclear pores and kinetochores. EMBO Rep 2018; 19:embr.201744742. [PMID: 29632243 DOI: 10.15252/embr.201744742] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 03/02/2018] [Accepted: 03/08/2018] [Indexed: 11/09/2022] Open
Abstract
Cenp-F is a multifaceted protein implicated in cancer and developmental pathologies. The Cenp-F C-terminal region contains overlapping binding sites for numerous proteins that contribute to its functions throughout the cell cycle. Here, we focus on the nuclear pore protein Nup133 that interacts with Cenp-F both at nuclear pores in prophase and at kinetochores in mitosis, and on the kinase Bub1, known to contribute to Cenp-F targeting to kinetochores. By combining in silico structural modeling and yeast two-hybrid assays, we generate an interaction model between a conserved helix within the Nup133 β-propeller and a short leucine zipper-containing dimeric segment of Cenp-F. We thereby create mutants affecting the Nup133/Cenp-F interface and show that they prevent Cenp-F localization to the nuclear envelope, but not to kinetochores. Conversely, a point mutation within an adjacent leucine zipper affecting the kinetochore targeting of Cenp-F KT-core domain impairs its interaction with Bub1, but not with Nup133, identifying Bub1 as the direct KT-core binding partner of Cenp-F. Finally, we show that Cenp-E redundantly contributes together with Bub1 to the recruitment of Cenp-F to kinetochores.
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Affiliation(s)
- Alessandro Berto
- Institut Jacques Monod, UMR7592, CNRS, Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,Ecole Doctorale Structure et Dynamique des Systèmes Vivants (#577), Univ Paris Sud, Université Paris-Saclay, Orsay, France
| | - Jinchao Yu
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ Paris Sud, Université Paris-Saclay, Gif sur Yvette, France
| | | | - Chiara Bertipaglia
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA
| | - Richard Vallee
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA
| | - Julien Dumont
- Institut Jacques Monod, UMR7592, CNRS, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Francoise Ochsenbein
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ Paris Sud, Université Paris-Saclay, Gif sur Yvette, France
| | - Raphael Guerois
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ Paris Sud, Université Paris-Saclay, Gif sur Yvette, France
| | - Valérie Doye
- Institut Jacques Monod, UMR7592, CNRS, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
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Capitanio JS, Montpetit B, Wozniak RW. Nucleoplasmic Nup98 controls gene expression by regulating a DExH/D-box protein. Nucleus 2017; 9:1-8. [PMID: 28934014 PMCID: PMC5973140 DOI: 10.1080/19491034.2017.1364826] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
The nucleoporin Nup98 has been linked to the regulation of transcription and RNA metabolism, 1-3 but the mechanisms by which Nup98 contributes to these processes remains largely undefined. Recently, we uncovered interactions between Nup98 and several DExH/D-box proteins (DBPs), a protein family well-known for modulating gene expression and RNA metabolism. 4-6 Analysis of Nup98 and one of these DBPs, DHX9, showed that they directly interact, their association is facilitated by RNA, and Nup98 binding stimulates DHX9 ATPase activity. 7 Furthermore, these proteins were dependent on one another for their proper association with a subset of gene loci to control transcription and modulate mRNA splicing. 7 On the basis of these observations, we proposed that Nup98 functions to regulate DHX9 activity within the nucleoplasm. 7 Since Nup98 is associated with several DBPs, regulation of DHX9 by Nup98 may represent a paradigm for understanding how Nup98, and possibly other FG-Nup proteins, could direct the diverse cellular activities of multiple DBPs.
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Affiliation(s)
| | - Ben Montpetit
- a Department of Cell Biology , University of Alberta , Edmonton , Canada.,b Department of Viticulture and Enology , University of California at Davis , Davis , CA , USA
| | - Richard W Wozniak
- a Department of Cell Biology , University of Alberta , Edmonton , Canada
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Port SA, Mendes A, Valkova C, Spillner C, Fahrenkrog B, Kaether C, Kehlenbach RH. The Oncogenic Fusion Proteins SET-Nup214 and Sequestosome-1 (SQSTM1)-Nup214 Form Dynamic Nuclear Bodies and Differentially Affect Nuclear Protein and Poly(A)+ RNA Export. J Biol Chem 2016; 291:23068-23083. [PMID: 27613868 PMCID: PMC5087727 DOI: 10.1074/jbc.m116.735340] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 08/31/2016] [Indexed: 01/09/2023] Open
Abstract
Genetic rearrangements are a hallmark of several forms of leukemia and can lead to oncogenic fusion proteins. One example of an affected chromosomal region is the gene coding for Nup214, a nucleoporin that localizes to the cytoplasmic side of the nuclear pore complex (NPC). We investigated two such fusion proteins, SET-Nup214 and SQSTM1 (sequestosome)-Nup214, both containing C-terminal portions of Nup214. SET-Nup214 nuclear bodies containing the nuclear export receptor CRM1 were observed in the leukemia cell lines LOUCY and MEGAL. Overexpression of SET-Nup214 in HeLa cells leads to the formation of similar nuclear bodies that recruit CRM1, export cargo proteins, and certain nucleoporins and concomitantly affect nuclear protein and poly(A)+ RNA export. SQSTM1-Nup214, although mostly cytoplasmic, also forms nuclear bodies and inhibits nuclear protein but not poly(A)+ RNA export. The interaction of the fusion proteins with CRM1 is RanGTP-dependent, as shown in co-immunoprecipitation experiments and binding assays. Further analysis revealed that the Nup214 parts mediate the inhibition of nuclear export, whereas the SET or SQSTM1 part determines the localization of the fusion protein and therefore the extent of the effect. SET-Nup214 nuclear bodies are highly mobile structures, which are in equilibrium with the nucleoplasm in interphase and disassemble during mitosis or upon treatment of cells with the CRM1-inhibitor leptomycin B. Strikingly, we found that nucleoporins can be released from nuclear bodies and reintegrated into existing NPC. Our results point to nuclear bodies as a means of preventing the formation of potentially insoluble and harmful protein aggregates that also may serve as storage compartments for nuclear transport factors.
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Affiliation(s)
- Sarah A Port
- From the Department of Molecular Biology, Faculty of Medicine and the Göttingen Center for Molecular Biosciences (GZMB), Georg August University, Göttingen, Humboldtallee 23, 37073 Göttingen, Germany
| | - Adélia Mendes
- the Institute of Molecular Biology and Medicine, Université Libre de Bruxelles, 6041 Charleroi, Belgium, and
| | - Christina Valkova
- the Leibniz Institute on Aging,Fritz Lipmann Institute, Beutenbergstrasse 11, 07745 Jena, Germany
| | - Christiane Spillner
- From the Department of Molecular Biology, Faculty of Medicine and the Göttingen Center for Molecular Biosciences (GZMB), Georg August University, Göttingen, Humboldtallee 23, 37073 Göttingen, Germany
| | - Birthe Fahrenkrog
- the Institute of Molecular Biology and Medicine, Université Libre de Bruxelles, 6041 Charleroi, Belgium, and
| | - Christoph Kaether
- the Leibniz Institute on Aging,Fritz Lipmann Institute, Beutenbergstrasse 11, 07745 Jena, Germany
| | - Ralph H Kehlenbach
- From the Department of Molecular Biology, Faculty of Medicine and the Göttingen Center for Molecular Biosciences (GZMB), Georg August University, Göttingen, Humboldtallee 23, 37073 Göttingen, Germany,
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