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Parihar PS, Singh A, Karade SS, Sahasrabuddhe AA, Pratap JV. Structural insights into kinetoplastid coronin oligomerization domain and F-actin interaction. Curr Res Struct Biol 2021; 3:268-276. [PMID: 34746809 PMCID: PMC8554105 DOI: 10.1016/j.crstbi.2021.10.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 09/18/2021] [Accepted: 10/11/2021] [Indexed: 12/25/2022] Open
Abstract
The two-domain actin associated protein coronin interacts with filamentous (F-) actin, facilitating diverse biological processes including cell proliferation, motility, phagocytosis, host-parasite interaction and cargo binding. The conserved N-terminal β-propeller domain is involved in protein: protein interactions, while the C-terminal coiled-coil domain mediates oligomerization, transducing conformational changes. The L. donovani coronin coiled-coil (LdCoroCC) domain exhibited a novel topology and oligomer association with an inherent asymmetry, caused primarily by three a residues of successive heptads. In the T.brucei homolog (TbrCoro), two of these 'a' residues are different (Val 493 & 507 replacing LdCoroCC Ile 486 and Met 500 respectively). The elucidated structure possesses a similar topology and assembly while comparative structural analysis shows that the T.brucei coronin coiled-coil domain (TbrCoroCC) too possesses the asymmetry though its magnitude is smaller. Analysis identifies that the asymmetric state is stabilized via cyclic salt bridges formed by Arg 497 and Glu 504. Co-localization studies (LdCoro, TbrCoro and corresponding mutant coiled coil constructs) with actin show that there are subtle differences in their binding patterns, with the double mutant V493I-V507M showing maximal effect. None of the constructs have an effect on F-actin length. Taken together with LdCoroCC, we therefore conclude that the inherent asymmetric structures are essential for kinetoplastids, and are of interest in understanding and exploiting actin dynamics.
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Affiliation(s)
- Pankaj Singh Parihar
- Division of Biochemistry and Structural Biology, CSIR - Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, Uttar Pradesh, India
| | - Aastha Singh
- Division of Biochemistry and Structural Biology, CSIR - Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, Uttar Pradesh, India
| | - Sharanbasappa Shrimant Karade
- Division of Biochemistry and Structural Biology, CSIR - Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, Uttar Pradesh, India
| | - Amogh Anant Sahasrabuddhe
- Division of Biochemistry and Structural Biology, CSIR - Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, Uttar Pradesh, India
| | - J Venkatesh Pratap
- Division of Biochemistry and Structural Biology, CSIR - Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, Uttar Pradesh, India
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Gupta CM, Ambaru B, Bajaj R. Emerging Functions of Actins and Actin Binding Proteins in Trypanosomatids. Front Cell Dev Biol 2020; 8:587685. [PMID: 33163497 PMCID: PMC7581878 DOI: 10.3389/fcell.2020.587685] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 09/22/2020] [Indexed: 01/20/2023] Open
Abstract
Actin is the major protein constituent of the cytoskeleton that performs wide range of cellular functions. It exists in monomeric and filamentous forms, dynamics of which is regulated by a large repertoire of actin binding proteins. However, not much was known about existence of these proteins in trypanosomatids, till the genome sequence data of three important organisms of this class, viz. Trypanosoma brucei, Trypanosoma cruzi and Leishmania major, became available. Here, we have reviewed most of the findings reported to date on the intracellular distribution, structure and functions of these proteins and based on them, we have hypothesized some of their functions. The major findings are as follows: (1) All the three organisms encode at least a set of ten actin binding proteins (profilin, twinfilin, ADF/cofilin, CAP/srv2, CAPz, coronin, two myosins, two formins) and one isoform of actin, except that T. cruzi encodes for three formins and several myosins along with four actins. (2) Actin 1 and a few actin binding proteins (ADF/cofilin, profilin, twinfilin, coronin and myosin13 in L. donovani; ADF/cofilin, profilin and myosin1 in T. brucei; profilin and myosin-F in T.cruzi) have been identified and characterized. (3) In all the three organisms, actin cytoskeleton has been shown to regulate endocytosis and intracellular trafficking. (4) Leishmania actin1 has been the most characterized protein among trypanosomatid actins. (5) This protein is localized to the cytoplasm as well as in the flagellum, nucleus and kinetoplast, and in vitro, it binds to DNA and displays scDNA relaxing and kDNA nicking activities. (6) The pure protein prefers to form bundles instead of thin filaments, and does not bind DNase1 or phalloidin. (7) Myosin13, myosin1 and myosin-F regulate endocytosis and intracellular trafficking, respectively, in Leishmania, T. brucei and T. cruzi. (8) Actin-dependent myosin13 motor is involved in dynamics and assembly of Leishmania flagellum. (9) Leishmania twinfilin localizes mostly to the nucleolus and coordinates karyokinesis by effecting splindle elongation and DNA synthesis. (10) Leishmania coronin binds and promotes actin filament formation and exists in tetrameric form rather than trimeric form, like other coronins. (11) Trypanosomatid profilins are essential for survival of all the three parasites.
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Affiliation(s)
- Chhitar M Gupta
- Institute of Bioinformatics and Applied Biotechnology, Bengaluru, India
| | - Bindu Ambaru
- Institute of Bioinformatics and Applied Biotechnology, Bengaluru, India.,Manipal Academy of Higher Education, Manipal, India
| | - Rani Bajaj
- Institute of Bioinformatics and Applied Biotechnology, Bengaluru, India.,Manipal Academy of Higher Education, Manipal, India
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Induction of Allograft Tolerance While Maintaining Immunity Against Microbial Pathogens: Does Coronin 1 Hold a Key? Transplantation 2020; 104:1350-1357. [PMID: 31895336 DOI: 10.1097/tp.0000000000003101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Selective suppression of graft rejection while maintaining anti-pathogen responses has been elusive. Thus far, the most successful strategies to induce suppression of graft rejection relies on inhibition of T-cell activation. However, the very same mechanisms that induce allograft-specific T-cell suppression are also important for immunity against microbial pathogens as well as oncogenically transformed cells, resulting in significant immunosuppression-associated comorbidities. Therefore, defining the pathways that differentially regulate anti-graft versus antimicrobial T-cell responses may allow the development of regimen to induce allograft-specific tolerance. Recent work has defined a molecular pathway driven by the immunoregulatory protein coronin 1 that regulates the phosphodiesterase/cyclic adenosine monophosphate pathway and modulates T cell responses. Interestingly, disruption of coronin 1 promotes allograft tolerance while immunity towards a range of pathogenic microbes is maintained. Here, we briefly review the work leading up to these findings as well as their possible implications for transplantation medicine.
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Chánez-Paredes S, Montoya-García A, Schnoor M. Cellular and pathophysiological consequences of Arp2/3 complex inhibition: role of inhibitory proteins and pharmacological compounds. Cell Mol Life Sci 2019; 76:3349-3361. [PMID: 31073744 PMCID: PMC11105272 DOI: 10.1007/s00018-019-03128-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 04/30/2019] [Accepted: 05/02/2019] [Indexed: 02/06/2023]
Abstract
The actin-related protein complex 2/3 (Arp2/3) generates branched actin networks important for many cellular processes such as motility, vesicular trafficking, cytokinesis, and intercellular junction formation and stabilization. Activation of Arp2/3 requires interaction with actin nucleation-promoting factors (NPFs). Regulation of Arp2/3 activity is achieved by endogenous inhibitory proteins through direct binding to Arp2/3 and competition with NPFs or by binding to Arp2/3-induced actin filaments and disassembly of branched actin networks. Arp2/3 inhibition has recently garnered more attention as it has been associated with attenuation of cancer progression, neurotoxic effects during drug abuse, and pathogen invasion of host cells. In this review, we summarize current knowledge on expression, inhibitory mechanisms and function of endogenous proteins able to inhibit Arp2/3 such as coronins, GMFs, PICK1, gadkin, and arpin. Moreover, we discuss cellular consequences of pharmacological Arp2/3 inhibition.
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Affiliation(s)
- Sandra Chánez-Paredes
- Department for Molecular Biomedicine, CINVESTAV-IPN, Av. IPN 2508, San Pedro Zacatenco, GAM, 07360, Mexico City, Mexico
| | - Armando Montoya-García
- Department for Molecular Biomedicine, CINVESTAV-IPN, Av. IPN 2508, San Pedro Zacatenco, GAM, 07360, Mexico City, Mexico
| | - Michael Schnoor
- Department for Molecular Biomedicine, CINVESTAV-IPN, Av. IPN 2508, San Pedro Zacatenco, GAM, 07360, Mexico City, Mexico.
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Marques AT, Anjo SI, Bhide M, Varela Coelho A, Manadas B, Lecchi C, Grilli G, Ceciliani F. Changes in the intestinal mucosal proteome of turkeys (Meleagris gallopavo) infected with haemorrhagic enteritis virus. Vet Immunol Immunopathol 2019; 213:109880. [PMID: 31307669 DOI: 10.1016/j.vetimm.2019.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 06/04/2019] [Accepted: 06/07/2019] [Indexed: 10/26/2022]
Abstract
Haemorrhagic enteritis (HE) is a viral disease affecting intestinal integrity and barrier function in turkey (Meleagris gallopavo) and resulting in a significant economic loss. Sequential Windowed Acquisition of All Theoretical Fragment Ion Mass Spectra (SWATH-MS) was applied to identify crucial proteins involved in HE infection. A total of 938 proteins were identified and used to generate a reference library for SWATH-MS analysis. In total, 523 proteins were reliably quantified, and 64 proteins were found to be differentially expressed, including 49 up-regulated and 15 down-regulated proteins between healthy and HE-affected intestinal mucosa. Functional analysis suggested that these proteins were involved in the following categories of cellular pathways and metabolisms: 1) energy pathways; 2) intestine lipid and amino acid metabolism; 3) oxidative stress; 4) intestinal immune response. Major findings of this study demonstrated that natural HE infection is related to the changes in abundance of several proteins involved in cell-intrinsic immune defense against viral invasion, systemic inflammation, modulation of excessive inflammation, B and T cell development and function and antigen presentation. mRNA quantitative expression demonstrated that most of the proteins involved in innate immunity that were found to be differentially abundant were produced by intestinal mucosa, suggesting its direct involvement in immune defences against HE infection.
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Affiliation(s)
- Andreia Tomás Marques
- Università degli Studi di Milano, Department of Veterinary Medicine, Via Celoria 10, 20133, Milano, Italy
| | - Sandra I Anjo
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Rua Larga, Faculdade de Medicina, Pólo I, 1° andar, 3004-504, Coimbra, Portugal; Faculty of Sciences and Technology, University of Coimbra, Universidade de Coimbra - Pólo II, Rua Sílvio Lima, 3030-790, Coimbra, Portugal
| | - Mangesh Bhide
- Laboratory of Biomedical Microbiology and Immunology, University of Veterinary Medicine and Pharmacy, Komenskeho 73 Kosice, Slovakia
| | - Ana Varela Coelho
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157, Oeiras, Portugal
| | - Bruno Manadas
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Rua Larga, Faculdade de Medicina, Pólo I, 1° andar, 3004-504, Coimbra, Portugal
| | - Cristina Lecchi
- Università degli Studi di Milano, Department of Veterinary Medicine, Via Celoria 10, 20133, Milano, Italy
| | - Guido Grilli
- Università degli Studi di Milano, Department of Veterinary Medicine, Via Celoria 10, 20133, Milano, Italy
| | - Fabrizio Ceciliani
- Università degli Studi di Milano, Department of Veterinary Medicine, Via Celoria 10, 20133, Milano, Italy.
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Jayachandran R, Gumienny A, Bolinger B, Ruehl S, Lang MJ, Fucile G, Mazumder S, Tchang V, Woischnig AK, Stiess M, Kunz G, Claudi B, Schmaler M, Siegmund K, Li J, Dertschnig S, Holländer G, Medina E, Karrer U, Moshous D, Bumann D, Khanna N, Rossi SW, Pieters J. Disruption of Coronin 1 Signaling in T Cells Promotes Allograft Tolerance while Maintaining Anti-Pathogen Immunity. Immunity 2019; 50:152-165.e8. [PMID: 30611611 DOI: 10.1016/j.immuni.2018.12.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 10/18/2018] [Accepted: 12/10/2018] [Indexed: 11/18/2022]
Abstract
The ability of the immune system to discriminate self from non-self is essential for eradicating microbial pathogens but is also responsible for allograft rejection. Whether it is possible to selectively suppress alloresponses while maintaining anti-pathogen immunity remains unknown. We found that mice deficient in coronin 1, a regulator of naive T cell homeostasis, fully retained allografts while maintaining T cell-specific responses against microbial pathogens. Mechanistically, coronin 1-deficiency increased cyclic adenosine monophosphate (cAMP) concentrations to suppress allo-specific T cell responses. Costimulation induced on microbe-infected antigen presenting cells was able to overcome cAMP-mediated immunosuppression to maintain anti-pathogen immunity. In vivo pharmacological modulation of this pathway or a prior transfer of coronin 1-deficient T cells actively suppressed allograft rejection. These results define a coronin 1-dependent regulatory axis in T cells important for allograft rejection and suggest that modulation of this pathway may be a promising approach to achieve long-term acceptance of mismatched allografts.
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Affiliation(s)
| | | | | | | | | | - Geoffrey Fucile
- Swiss Institute of Bioinformatics, sciCORE Computing Center, University of Basel, Basel, Switzerland
| | | | | | - Anne-Kathrin Woischnig
- Department of Biomedicine, University and University Hospital of Basel, Basel, Switzerland
| | | | | | | | - Mathias Schmaler
- Department of Biomedicine, University and University Hospital of Basel, Basel, Switzerland
| | | | | | - Simone Dertschnig
- Department of Biomedicine, University and University Hospital of Basel, Basel, Switzerland
| | - George Holländer
- Department of Biomedicine, University and University Hospital of Basel, Basel, Switzerland; Department of Paediatrics, University of Oxford, Oxford, UK
| | - Eva Medina
- Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Urs Karrer
- Division of Infectious Diseases and Department of Medicine, Cantonal Hospital of Winterthur, Winterthur, Switzerland
| | - Despina Moshous
- Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France and APHP Hôpital Universitaire Necker-Enfants Malades, Unité d'Immunologie-Hématologie et Rhumatologie Pédiatrique, Paris, France
| | - Dirk Bumann
- Biozentrum, University of Basel, Basel, Switzerland
| | - Nina Khanna
- Department of Biomedicine, University and University Hospital of Basel, Basel, Switzerland; Division of Infectious Diseases, University and University Hospital of Basel, Switzerland
| | - Simona W Rossi
- Department of Biomedicine, University and University Hospital of Basel, Basel, Switzerland
| | - Jean Pieters
- Biozentrum, University of Basel, Basel, Switzerland.
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Tokarz-Deptuła B, Malinowska M, Adamiak M, Deptuła W. Coronins and their role in immunological phenomena. Cent Eur J Immunol 2017; 41:435-441. [PMID: 28450807 PMCID: PMC5382889 DOI: 10.5114/ceji.2016.65143] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 01/06/2016] [Indexed: 02/05/2023] Open
Abstract
Coronins are a large family of proteins occurring in many eukaryotes. In mammals, seven coronin genes have been identified, evidencing that coronins 1 to 6 present classic coronin structure, while coronin 7 is a tandem coronin particle, without a spiral domain, although the best characterised coronin, in terms of both structure and function, is the mammalian coronin 1. It has been proven that they are related to regulation of actin dynamics, e.g. as a result of interaction with the complex of proteins Arp2/3. These proteins also modulate the activity of immune system cells, including lymphocyte T and B cells, neutrophils and macrophages. They are involved in bacterial infections with Mycobacterium tuberculosis, M. leprae and Helicobacter pylori and participate in the response to viral infections, e.g. infections of lymphocytic choriomeningitis virus (LCMV) and vesicular stomatitis Indiana virus (VSV). Also their involvement in autoimmune diseases such as lupus erythematosus has been recorded.
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Affiliation(s)
| | | | - Mateusz Adamiak
- Department of Immunology, Faculty of Biology, University of Szczecin, Poland
| | - Wiesław Deptuła
- Department of Immunology, Faculty of Biology, University of Szczecin, Poland
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Siegmund K, Klepsch V, Hermann-Kleiter N, Baier G. Proof of Principle for a T Lymphocyte Intrinsic Function of Coronin 1A. J Biol Chem 2016; 291:22086-22092. [PMID: 27566541 PMCID: PMC5063991 DOI: 10.1074/jbc.m116.748012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 08/19/2016] [Indexed: 11/06/2022] Open
Abstract
Coronins are evolutionarily conserved proteins that were originally identified as modulators of actin-dependent processes. Studies analyzing complete Coronin 1a knock-out mice have shown that this molecule is an important regulator of naive T cell homeostasis and it has been linked to immune deficiencies as well as autoimmune disorders. Nevertheless, because Coronin 1A is strongly expressed in all leukocyte subsets, it is not conclusive whether or not this phenotype is attributed to a T cell-intrinsic function of Coronin 1A. To address this research question, we have generated a T cell-specific Coronin 1a knock-out mouse (Coro1afl/fl × Cd4[Cre]). Deletion of Coronin 1A specifically in T cells led to a strong reduction in T cell number and a shift toward the effector/memory phenotype in peripheral lymphoid organs when compared with Cd4[Cre] mice expressing wild-type Coronin 1A. In contrast to peripheral lymphoid tissue, thymocyte number and subsets were not affected by the deletion of Coronin 1a Furthermore, T cell-specific Coronin 1a knock-out mice were largely resistant to the induction of autoimmunity when tested in the myelin oligoglycoprotein-induced EAE mouse model of multiple sclerosis. Thus, the phenotype of T cell-specific Coronin 1a deletion resembles the phenotype observed with conventional (whole body) Coronin 1a knock-out mice. In summary, our findings provide formal proof of the predominant T cell-intrinsic role of Coronin 1A.
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Affiliation(s)
- Kerstin Siegmund
- From the Department for Pharmacology and Genetics, Medical University Innsbruck, Peter Mayr Strasse 1a, AT-6020 Innsbruck, Austria
| | - Victoria Klepsch
- From the Department for Pharmacology and Genetics, Medical University Innsbruck, Peter Mayr Strasse 1a, AT-6020 Innsbruck, Austria
| | - Natascha Hermann-Kleiter
- From the Department for Pharmacology and Genetics, Medical University Innsbruck, Peter Mayr Strasse 1a, AT-6020 Innsbruck, Austria
| | - Gottfried Baier
- From the Department for Pharmacology and Genetics, Medical University Innsbruck, Peter Mayr Strasse 1a, AT-6020 Innsbruck, Austria
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Srivastava R, Prasadareddy Kajuluri L, Pathak N, Gupta CM, Sahasrabuddhe AA. Oligomerization of coronin: Implication on actin filament length inLeishmania. Cytoskeleton (Hoboken) 2016; 72:621-32. [DOI: 10.1002/cm.21269] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 10/27/2015] [Accepted: 12/07/2015] [Indexed: 01/02/2023]
Affiliation(s)
- Rashmi Srivastava
- Molecular and Structural Biology Division; CSIR-Central Drug Research Institute, Jankipuram Extension, Sector-10; Lucknow India
- Department of Biosciences; Integral University; Lucknow India
| | - Lova Prasadareddy Kajuluri
- Molecular and Structural Biology Division; CSIR-Central Drug Research Institute, Jankipuram Extension, Sector-10; Lucknow India
| | - Neelam Pathak
- Department of Biosciences; Integral University; Lucknow India
| | - Chhitar M. Gupta
- Institute of Bioinformatics and Applied Biotechnology; Bangalore India
| | - Amogh A. Sahasrabuddhe
- Molecular and Structural Biology Division; CSIR-Central Drug Research Institute, Jankipuram Extension, Sector-10; Lucknow India
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Recurrent viral infections associated with a homozygous CORO1A mutation that disrupts oligomerization and cytoskeletal association. J Allergy Clin Immunol 2015; 137:879-88.e2. [PMID: 26476480 DOI: 10.1016/j.jaci.2015.08.020] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 07/26/2015] [Accepted: 08/04/2015] [Indexed: 01/18/2023]
Abstract
BACKGROUND Coronin-1A (CORO1A) is a regulator of actin dynamics important for T-cell homeostasis. CORO1A deficiency causes T(-)B(+) natural killer-positive severe combined immunodeficiency or T-cell lymphopenia with severe viral infections. However, because all known human mutations in CORO1A abrogate protein expression, the role of the protein's functional domains in host immunity is unknown. OBJECTIVE We sought to identify the cause of the primary immunodeficiency in 2 young adult siblings with a history of disseminated varicella, cutaneous warts, and CD4(+) T-cell lymphopenia. METHODS We performed immunologic, genetic, and biochemical studies in the patients, family members, and healthy control subjects. RESULTS Both patients had CD4(+) T-cell lymphopenia and decreased lymphocyte proliferation to mitogens. IgG, IgM, IgA, and specific antibody responses were normal. Whole-genome sequencing identified a homozygous frameshift mutation in CORO1A disrupting the last 2 C-terminal domains by replacing 61 amino acids with a novel 91-amino-acid sequence. The CORO1A(S401fs) mutant was expressed in the patients' lymphocytes at a level comparable with that of wild-type CORO1A in normal lymphocytes but did not oligomerize and had impaired cytoskeletal association. CORO1A(S401fs) was associated with increased filamentous actin accumulation in T cells, severely defective thymic output, and impaired T-cell survival but normal calcium flux and cytotoxicity, demonstrating the importance of CORO1A oligomerization and subcellular localization in T-cell homeostasis. CONCLUSIONS We describe a truncating mutation in CORO1A that permits protein expression and survival into young adulthood. Our studies demonstrate the importance of intact CORO1A C-terminal domains in thymic egress and T-cell survival, as well as in defense against viral pathogens.
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11
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Jayachandran R, Pieters J. Regulation of immune cell homeostasis and function by coronin 1. Int Immunopharmacol 2015; 28:825-8. [DOI: 10.1016/j.intimp.2015.03.045] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 03/28/2015] [Indexed: 12/24/2022]
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12
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Alkhairy OK, Perez-Becker R, Driessen GJ, Abolhassani H, van Montfrans J, Borte S, Choo S, Wang N, Tesselaar K, Fang M, Bienemann K, Boztug K, Daneva A, Mechinaud F, Wiesel T, Becker C, Dückers G, Siepermann K, van Zelm MC, Rezaei N, van der Burg M, Aghamohammadi A, Seidel MG, Niehues T, Hammarström L. Novel mutations in TNFRSF7/CD27: Clinical, immunologic, and genetic characterization of human CD27 deficiency. J Allergy Clin Immunol 2015; 136:703-712.e10. [DOI: 10.1016/j.jaci.2015.02.022] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 02/04/2015] [Accepted: 02/06/2015] [Indexed: 01/30/2023]
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13
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Punwani D, Pelz B, Yu J, Arva NC, Schafernak K, Kondratowicz K, Makhija M, Puck JM. Coronin-1A: immune deficiency in humans and mice. J Clin Immunol 2015; 35:100-7. [PMID: 25666293 DOI: 10.1007/s10875-015-0130-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 01/13/2015] [Indexed: 12/21/2022]
Affiliation(s)
- Divya Punwani
- Department of Pediatrics, University of California San Francisco and UCSF Benioff Children's Hospital, Box 0519, 513 Parnassus Avenue, HSE 301A, San Francisco, CA, 94143-0519, USA
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14
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Siegmund K, Lee WY, Tchang VS, Stiess M, Terracciano L, Kubes P, Pieters J. Coronin 1 is dispensable for leukocyte recruitment and liver injury in concanavalin A-induced hepatitis. Immunol Lett 2013; 153:62-70. [DOI: 10.1016/j.imlet.2013.06.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 06/25/2013] [Accepted: 06/30/2013] [Indexed: 01/13/2023]
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