1
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Kratzer B, Grabmeier-Pfistershammer K, Trapin D, Körmöczi U, Rottal A, Feichter M, Waidhofer-Söllner P, Smogavec M, Laccone F, Hauser M, Winkler S, Pickl WF, Lechner AM. Mycobacterium avium Complex Infections: Detailed Phenotypic and Functional Immunological Work-Up Is Required despite Genetic Analyses. Int Arch Allergy Immunol 2023; 184:914-931. [PMID: 37279717 DOI: 10.1159/000530844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 04/18/2023] [Indexed: 06/08/2023] Open
Abstract
INTRODUCTION Cervical scrofulous lymphadenitis due to Mycobacterium avium complex (MAC) in immunocompetent adults is a rare disease. The presence of MAC infections demands meticulous clinical evaluation of patients along with detailed phenotypic and functional evaluation of their immune system including next-generation sequencing (NGS) analyses of target genes. METHODS Exact clinical histories of the index patients both suffering from retromandibular/cervical scrofulous lymphadenitis were obtained along with phenotypic and functional immunological evaluations of leukocyte populations followed by targeted NGS-based sequencing of candidate genes. RESULTS Immunological investigations showed normal serum immunoglobulin and complement levels, but lymphopenia, which was caused by significantly reduced CD3+CD4+CD45RO+ memory T-cell and CD19+ B-cell numbers. Despite normal T-cell proliferation to a number of accessory cell-dependent and -independent stimuli, the PBMC of both patients elaborated clearly reduced levels of a number of cytokines, including IFN-γ, IL-10, IL-12p70, IL-1α, IL-1β, and TNF-α upon TCR-dependent T-cell stimulation with CD3-coated beads but also superantigens. The IFN-γ production deficiency was confirmed for CD3+CD4+ helper and CD4+CD8+ cytotoxic T cells on the single-cell level by multiparametric flow cytometry irrespective of whether PMA/ionomycin-stimulated whole blood cells or gradient-purified PBMC was analyzed. In the female patient L1, targeted NGS-based sequencing revealed a homozygous c.110T>C mutation in the interferon-γ receptor type 1 (IFNGR1) leading to significantly reduced receptor expression on both CD14+ monocytes and CD3+ T cells. Patient S2 presented with normal IFNGR1 expression on CD14+ monocytes but significantly reduced IFNGR1 expression on CD3+ T cells, despite the absence of detectable homozygous mutations in the IFNGR1 itself or disease-related target genes. Exogenous addition of increasing doses of IFN-γ resulted in proper upregulation of high-affinity FcγRI (CD64) on monocytes from patient S2, whereas monocytes from patient L1 showed only partial induction of CD64 expression after incubation with high doses of IFN-γ. CONCLUSION A detailed phenotypic and functional immunological examination is urgently required to determine the cause of a clinically relevant immunodeficiency, despite detailed genetic analyses.
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Affiliation(s)
- Bernhard Kratzer
- Medical University of Vienna, Center for Pathophysiology, Infectiology and Immunology, Institute of Immunology, Vienna, Austria
| | | | - Doris Trapin
- Medical University of Vienna, Center for Pathophysiology, Infectiology and Immunology, Institute of Immunology, Vienna, Austria
| | - Ulrike Körmöczi
- Medical University of Vienna, Center for Pathophysiology, Infectiology and Immunology, Institute of Immunology, Vienna, Austria
| | - Arno Rottal
- Medical University of Vienna, Center for Pathophysiology, Infectiology and Immunology, Institute of Immunology, Vienna, Austria
| | - Melanie Feichter
- Medical University of Vienna, Center for Pathophysiology, Infectiology and Immunology, Institute of Immunology, Vienna, Austria
| | - Petra Waidhofer-Söllner
- Medical University of Vienna, Center for Pathophysiology, Infectiology and Immunology, Institute of Immunology, Vienna, Austria
| | - Mateja Smogavec
- Medical University of Vienna, Center for Pathobiochemistry and Genetics, Institute of Medical Genetics, Vienna, Austria
| | - Franco Laccone
- Medical University of Vienna, Center for Pathobiochemistry and Genetics, Institute of Medical Genetics, Vienna, Austria
| | - Michael Hauser
- Paris Lodron University Salzburg, Division of Allergy and Immunology, Department of Biosciences, Salzburg, Austria
| | - Stefan Winkler
- Medical University of Vienna, Department of Medicine I, Division of Infectious Diseases and Tropical Medicine Vienna, Vienna, Austria
| | - Winfried F Pickl
- Medical University of Vienna, Center for Pathophysiology, Infectiology and Immunology, Institute of Immunology, Vienna, Austria
- Karl Landsteiner University, Krems, Austria
| | - Arno M Lechner
- Paracelsus University Salzburg, University Institute for Clinical Microbiology and Hygiene, Salzburg, Austria
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2
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Gasparotto M, Franco C, Zanatta E, Ghirardello A, Zen M, Iaccarino L, Fabris B, Doria A, Gatto M. The interferon in idiopathic inflammatory myopathies: Different signatures and new therapeutic perspectives. A literature review. Autoimmun Rev 2023; 22:103334. [PMID: 37068699 DOI: 10.1016/j.autrev.2023.103334] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 04/13/2023] [Indexed: 04/19/2023]
Abstract
Idiopathic inflammatory myopathies (IIM), even though sharing common clinical manifestations, are characterized by diversified molecular pathogenetic mechanisms which may account for the partial inefficacy of currently used immunomodulatory drugs. In the last decades, the role of interferon (IFN) in IIM has been extensively elucidated thanks to genomic and proteomic studies which have assessed the molecular signature at the level of affected tissues or in peripheral blood across distinct IIM subtypes. A predominant type I IFN response has been shown in dermatomyositis (DM), being especially enhanced in MDA5+ DM, while a type 2 IFN profile characterizes anti-synthetase syndrome (ASyS) and inclusion body myositis (IBM); conversely, a less robust IFN footprint has been defined for immune-mediated necrotizing myopathy (IMNM). Intracellular IFN signaling is mediated by the janus kinase/signal transducer and activator of transcription (JAK/STAT) through dedicated transmembrane receptors and specific cytoplasmic molecular combinations. These results may have therapeutic implications and led to evaluating the efficacy of new targeted drugs such as the recently introduced janus kinase inhibitors (JAKi), currently approved for the treatment of rheumatoid arthritis, psoriatic arthritis, and ankylosing spondylitis. In this review we aim to summarize the most significant evidence of IFN role in IIM pathogenesis and to describe the current state of the art about the ongoing clinical trials on IFN-targeting drugs, with particular focus on JAKi.
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Affiliation(s)
- M Gasparotto
- Rheumatology Unit, Department of Medicine, University of Padua, 35128 Pauda, Italy.
| | - C Franco
- Rheumatology Unit, Department of Medicine, University of Padua, 35128 Pauda, Italy.
| | - E Zanatta
- Rheumatology Unit, Department of Medicine, University of Padua, 35128 Pauda, Italy.
| | - A Ghirardello
- Rheumatology Unit, Department of Medicine, University of Padua, 35128 Pauda, Italy.
| | - M Zen
- Rheumatology Unit, Department of Medicine, University of Padua, 35128 Pauda, Italy.
| | - L Iaccarino
- Rheumatology Unit, Department of Medicine, University of Padua, 35128 Pauda, Italy.
| | - B Fabris
- Department of Medical, Surgical and Health Sciences, University of Trieste, Strada di Fiume 447, 34149 Trieste, Italy.
| | - A Doria
- Rheumatology Unit, Department of Medicine, University of Padua, 35128 Pauda, Italy.
| | - M Gatto
- Rheumatology Unit, Department of Medicine, University of Padua, 35128 Pauda, Italy.
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3
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Zhu X, Wang J, Jia Z, Feng J, Wang B, Wang Z, Liu Q, Wu K, Huang W, Zhao X, Dang H, Zou J. Novel Dimeric Architecture of an IFN-γ-Related Cytokine Provides Insights into Subfunctionalization of Type II IFNs in Teleost Fish. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 209:2203-2214. [PMID: 36426983 DOI: 10.4049/jimmunol.2200334] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 09/06/2022] [Indexed: 01/04/2023]
Abstract
Gene duplication leads to subfunctionalization of paralogs. In mammals, IFN-γ is the sole member of the type II IFN family and binds to a receptor complex consisting of IFN-γR1 and IFN-γR2. In teleost fish, IFN-γ and its receptors have been duplicated due to the teleost-specific whole-genome duplication event. In this study, the functions of an IFN-γ-related (IFN-γrel) cytokine were found to be partially retained relative to IFN-γ in grass carp (Ctenopharyngodon idella [CiIFN-γrel]). CiIFN-γrel upregulated the expression of proinflammatory genes but had lost the ability to activate genes involved in Th1 response. The results suggest that CiIFN-γrel could have been subfunctionalized from CiIFN-γ. Moreover, CiIFN-γrel induced STAT1 phosphorylation via interaction with duplicated homologs of IFN-γR1 (cytokine receptor family B [CRFB] 17 and CRFB13). Strikingly, CiIFN-γrel did not bind to the IFN-γR2 homolog (CRFB6). To gain insight into the subfunctionalization, the crystal structure of CiIFN-γrel was solved at 2.26 Å, revealing that it forms a homodimer that is connected by two pairs of disulfide bonds. Due to the spatial positions of helix A, loop AB, and helix B, CiIFN-γrel displays a unique topology that requires elements from two identical monomers to form a unit that is similar to IFN-γ. Further, mutagenesis analyses identified key residues interacting with CiIFN-γrel receptors and those required for the biological functions. Our study can help understand the subfunctionalization of duplicated IFN-γ paralogs in fish.
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Affiliation(s)
- Xiaozhen Zhu
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China.,International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Junya Wang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China.,International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Zhao Jia
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China.,International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Jianhua Feng
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China.,International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Bangjie Wang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China.,International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Zixuan Wang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China.,International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Qin Liu
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China.,International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Kaizheng Wu
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China.,International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Wenji Huang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China.,International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Xin Zhao
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China.,International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Huifeng Dang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China.,International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Jun Zou
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China.,International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.,State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China; and.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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4
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Miladinova E, Lilkova E, Krachmarova E, Malinova K, Petkov P, Ilieva N, Nacheva G, Litov L. Heparan Sulfate Facilitates Binding of hIFN γ to Its Cell-Surface Receptor hIFNGR1. Int J Mol Sci 2022; 23:ijms23169415. [PMID: 36012678 PMCID: PMC9408938 DOI: 10.3390/ijms23169415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/12/2022] [Accepted: 08/17/2022] [Indexed: 11/16/2022] Open
Abstract
Human interferon-gamma (hIFNγ) is a crucial signaling molecule with an important role in the initialization and development of the immune response of the host. However, its aberrant activity is also associated with the progression of a multitude of autoimmune and other diseases, which determines the need for effective inhibitors of its activity. The development of such treatments requires proper understanding of the interaction of hIFNγ to its cell-surface receptor hIFNGR1. Currently, there is no comprehensive model of the mechanism of this binding process. Here, we employ molecular dynamics simulations to study on a microscopic level the process of hIFNγ–hIFNGR1 complex formation in different scenarios. We find that the two molecules alone fail to form a stable complex, but the presence of heparan-sulfate-like oligosaccharides largely facilitates the process by both demobilizing the highly flexible C-termini of the cytokine and assisting in the proper positioning of its globule between the receptor subunits. An antiproliferative-activity assay on cells depleted from cell-surface heparan sulfate (HS) sulfation together with the phosphorylation levels of the signal transducer and activator of transcription STAT1 confirms qualitatively the simulation-based multistage complex-formation model. Our results reveal the key role of HS and its proteoglycans in all processes involving hIFNγ signalling.
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Affiliation(s)
- Elisaveta Miladinova
- Faculty of Physics, Sofia University “St. Kliment Ohridski”, 5 James Bourchier Blvd., 1164 Sofia, Bulgaria
| | - Elena Lilkova
- Institute of Information and Communication Technologies, Bulgarian Academy of Sciences, 2 Acad. G. Bonchev Str., 1113 Sofia, Bulgaria
- Correspondence: (E.L.); (E.K.)
| | - Elena Krachmarova
- Institute of Molecular Biology “Roumen Tsanev”, Bulgarian Academy of Sciences, 21 Acad. G. Bonchev Str., 1113 Sofia, Bulgaria
- Correspondence: (E.L.); (E.K.)
| | - Kristina Malinova
- Institute of Molecular Biology “Roumen Tsanev”, Bulgarian Academy of Sciences, 21 Acad. G. Bonchev Str., 1113 Sofia, Bulgaria
| | - Peicho Petkov
- Faculty of Physics, Sofia University “St. Kliment Ohridski”, 5 James Bourchier Blvd., 1164 Sofia, Bulgaria
| | - Nevena Ilieva
- Institute of Information and Communication Technologies, Bulgarian Academy of Sciences, 2 Acad. G. Bonchev Str., 1113 Sofia, Bulgaria
| | - Genoveva Nacheva
- Institute of Molecular Biology “Roumen Tsanev”, Bulgarian Academy of Sciences, 21 Acad. G. Bonchev Str., 1113 Sofia, Bulgaria
| | - Leandar Litov
- Faculty of Physics, Sofia University “St. Kliment Ohridski”, 5 James Bourchier Blvd., 1164 Sofia, Bulgaria
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5
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Shih HP, Ding JY, Sotolongo Bellón J, Lo YF, Chung PH, Ting HT, Peng JJ, Wu TY, Lin CH, Lo CC, Lin YN, Yeh CF, Chen JB, Wu TS, Liu YM, Kuo CY, Wang SY, Tu KH, Ng CY, Lei WT, Tsai YH, Chen JH, Chuang YT, Huang JY, Rey FA, Chen HK, Chang TW, Piehler J, Chi CY, Ku CL. Pathogenic autoantibodies to IFN-γ act through the impedance of receptor assembly and Fc-mediated response. J Exp Med 2022; 219:213354. [PMID: 35833912 PMCID: PMC9287643 DOI: 10.1084/jem.20212126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 03/21/2022] [Accepted: 06/23/2022] [Indexed: 01/16/2023] Open
Abstract
Anti-interferon (IFN)-γ autoantibodies (AIGAs) are a pathogenic factor in late-onset immunodeficiency with disseminated mycobacterial and other opportunistic infections. AIGAs block IFN-γ function, but their effects on IFN-γ signaling are unknown. Using a single-cell capture method, we isolated 19 IFN-γ-reactive monoclonal antibodies (mAbs) from patients with AIGAs. All displayed high-affinity (KD < 10-9 M) binding to IFN-γ, but only eight neutralized IFN-γ-STAT1 signaling and HLA-DR expression. Signal blockade and binding affinity were correlated and attributed to somatic hypermutations. Cross-competition assays identified three nonoverlapping binding sites (I-III) for AIGAs on IFN-γ. We found that site I mAb neutralized IFN-γ by blocking its binding to IFN-γR1. Site II and III mAbs bound the receptor-bound IFN-γ on the cell surface, abolishing IFN-γR1-IFN-γR2 heterodimerization and preventing downstream signaling. Site III mAbs mediated antibody-dependent cellular cytotoxicity, probably through antibody-IFN-γ complexes on cells. Pathogenic AIGAs underlie mycobacterial infections by the dual blockade of IFN-γ signaling and by eliminating IFN-γ-responsive cells.
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Affiliation(s)
- Han-Po Shih
- Laboratory of Human Immunology and Infectious Disease, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Jing-Ya Ding
- Laboratory of Human Immunology and Infectious Disease, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Junel Sotolongo Bellón
- Division of Biophysics, Department of Biology, University of Osnabruck, Osnabruck, Germany
| | - Yu-Fang Lo
- Laboratory of Human Immunology and Infectious Disease, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | | | - He-Ting Ting
- Laboratory of Human Immunology and Infectious Disease, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Jhan-Jie Peng
- Laboratory of Human Immunology and Infectious Disease, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Tsai-Yi Wu
- Laboratory of Human Immunology and Infectious Disease, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Chia-Hao Lin
- Laboratory of Human Immunology and Infectious Disease, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Chia-Chi Lo
- Laboratory of Human Immunology and Infectious Disease, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - You-Ning Lin
- Laboratory of Human Immunology and Infectious Disease, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Chun-Fu Yeh
- Laboratory of Human Immunology and Infectious Disease, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan,Division of Infectious Diseases, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Jiun-Bo Chen
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Ting-Shu Wu
- Division of Infectious Diseases, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou, Taiwan,Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Yuag-Meng Liu
- Division of Infectious Diseases, Department of Internal Medicine, Changhua Christian Hospital, Changhua, Taiwan
| | - Chen-Yen Kuo
- Laboratory of Human Immunology and Infectious Disease, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan,Division of Infectious Diseases, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Shang-Yu Wang
- Laboratory of Human Immunology and Infectious Disease, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan,Division of General Surgery, Department of Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Kun-Hua Tu
- Laboratory of Human Immunology and Infectious Disease, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan,Chang Gung University College of Medicine, Taoyuan, Taiwan,Kidney Research Center, Department of Nephrology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chau Yee Ng
- Laboratory of Human Immunology and Infectious Disease, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan,Department of Dermatology, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Wei-Te Lei
- Laboratory of Human Immunology and Infectious Disease, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan,Department of Pediatrics, Hsinchu MacKay Memorial Hospital, Hsinchu, Taiwan
| | - Yu-Huan Tsai
- Laboratory of Host-Microbe Interactions and Cell Dynamics, Institute of Microbiology and Immunology, College of Life Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Jou-Han Chen
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Ya-Ting Chuang
- Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan
| | | | - Félix A. Rey
- Structural Virology Unit, Department of Virology, Institut Pasteur, Paris, France
| | | | - Tse-Wen Chang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Jacob Piehler
- Division of Biophysics, Department of Biology, University of Osnabruck, Osnabruck, Germany
| | - Chih-Yu Chi
- Division of Infectious Diseases, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan,School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan,Chih-Yu Chi:
| | - Cheng-Lung Ku
- Laboratory of Human Immunology and Infectious Disease, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan,Department of Nephrology, Chang Gung Memorial Hospital, Taoyuan, Taiwan,Center for Molecular and Clinical Immunology, Chang Gung University, Taoyuan, Taiwan,Correspondence to Cheng-Lung Ku:
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6
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Apriamashvili G, Vredevoogd DW, Krijgsman O, Bleijerveld OB, Ligtenberg MA, de Bruijn B, Boshuizen J, Traets JJH, D'Empaire Altimari D, van Vliet A, Lin CP, Visser NL, Londino JD, Sanchez-Hodge R, Oswalt LE, Altinok S, Schisler JC, Altelaar M, Peeper DS. Ubiquitin ligase STUB1 destabilizes IFNγ-receptor complex to suppress tumor IFNγ signaling. Nat Commun 2022; 13:1923. [PMID: 35395848 PMCID: PMC8993893 DOI: 10.1038/s41467-022-29442-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 03/11/2022] [Indexed: 12/30/2022] Open
Abstract
The cytokine IFNγ differentially impacts on tumors upon immune checkpoint blockade (ICB). Despite our understanding of downstream signaling events, less is known about regulation of its receptor (IFNγ-R1). With an unbiased genome-wide CRISPR/Cas9 screen for critical regulators of IFNγ-R1 cell surface abundance, we identify STUB1 as an E3 ubiquitin ligase for IFNγ-R1 in complex with its signal-relaying kinase JAK1. STUB1 mediates ubiquitination-dependent proteasomal degradation of IFNγ-R1/JAK1 complex through IFNγ-R1K285 and JAK1K249. Conversely, STUB1 inactivation amplifies IFNγ signaling, sensitizing tumor cells to cytotoxic T cells in vitro. This is corroborated by an anticorrelation between STUB1 expression and IFNγ response in ICB-treated patients. Consistent with the context-dependent effects of IFNγ in vivo, anti-PD-1 response is increased in heterogenous tumors comprising both wildtype and STUB1-deficient cells, but not full STUB1 knockout tumors. These results uncover STUB1 as a critical regulator of IFNγ-R1, and highlight the context-dependency of STUB1-regulated IFNγ signaling for ICB outcome.
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Affiliation(s)
- Georgi Apriamashvili
- Division of Molecular Oncology and Immunology, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
| | - David W Vredevoogd
- Division of Molecular Oncology and Immunology, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
| | - Oscar Krijgsman
- Division of Molecular Oncology and Immunology, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
| | - Onno B Bleijerveld
- Proteomics Core Facility, The Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
| | - Maarten A Ligtenberg
- Division of Molecular Oncology and Immunology, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
| | - Beaunelle de Bruijn
- Division of Molecular Oncology and Immunology, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
| | - Julia Boshuizen
- Division of Molecular Oncology and Immunology, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
| | - Joleen J H Traets
- Division of Molecular Oncology and Immunology, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
| | - Daniela D'Empaire Altimari
- Division of Molecular Oncology and Immunology, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
| | - Alex van Vliet
- Division of Molecular Oncology and Immunology, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
| | - Chun-Pu Lin
- Division of Molecular Oncology and Immunology, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
| | - Nils L Visser
- Division of Molecular Oncology and Immunology, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
| | - James D Londino
- Division of Pulmonary, Critical Care and Sleep Medicine, The Ohio State University Wexner Medical Center, 410 W 10th Avenue, Columbus, OH, USA
| | - Rebekah Sanchez-Hodge
- McAllister Heart Institute and Department of Pharmacology, The University of North Carolina at Chapel Hill, 111 Mason Farm Rd., 3340 C MBRB CB #7126, Chapel Hill, NC, USA
| | - Leah E Oswalt
- McAllister Heart Institute and Department of Pharmacology, The University of North Carolina at Chapel Hill, 111 Mason Farm Rd., 3340 C MBRB CB #7126, Chapel Hill, NC, USA
| | - Selin Altinok
- McAllister Heart Institute and Department of Pharmacology, The University of North Carolina at Chapel Hill, 111 Mason Farm Rd., 3340 C MBRB CB #7126, Chapel Hill, NC, USA
| | - Jonathan C Schisler
- McAllister Heart Institute and Department of Pharmacology, The University of North Carolina at Chapel Hill, 111 Mason Farm Rd., 3340 C MBRB CB #7126, Chapel Hill, NC, USA
| | - Maarten Altelaar
- Proteomics Core Facility, The Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, University of Utrecht, and Netherlands Proteomics Center, Padualaan 8, 3584, CH, Utrecht, The Netherlands
| | - Daniel S Peeper
- Division of Molecular Oncology and Immunology, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands.
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7
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Holder PG, Lim SA, Huang CS, Sharma P, Dagdas YS, Bulutoglu B, Sockolosky JT. Engineering interferons and interleukins for cancer immunotherapy. Adv Drug Deliv Rev 2022; 182:114112. [PMID: 35085624 DOI: 10.1016/j.addr.2022.114112] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/07/2022] [Accepted: 01/12/2022] [Indexed: 02/08/2023]
Abstract
Cytokines are a class of potent immunoregulatory proteins that are secreted in response to various stimuli and act locally to regulate many aspects of human physiology and disease. Cytokines play important roles in cancer initiation, progression, and elimination, and thus, there is a long clinical history associated with the use of recombinant cytokines to treat cancer. However, the use of cytokines as therapeutics has been limited by cytokine pleiotropy, complex biology, poor drug-like properties, and severe dose-limiting toxicities. Nevertheless, cytokines are crucial mediators of innate and adaptive antitumor immunity and have the potential to enhance immunotherapeutic approaches to treat cancer. Development of immune checkpoint inhibitors and combination immunotherapies has reinvigorated interest in cytokines as therapeutics, and a variety of engineering approaches are emerging to improve the safety and effectiveness of cytokine immunotherapy. In this review we highlight recent advances in cytokine biology and engineering for cancer immunotherapy.
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8
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Sotolongo Bellón J, Birkholz O, Richter CP, Eull F, Kenneweg H, Wilmes S, Rothbauer U, You C, Walter MR, Kurre R, Piehler J. Four-color single-molecule imaging with engineered tags resolves the molecular architecture of signaling complexes in the plasma membrane. CELL REPORTS METHODS 2022; 2:100165. [PMID: 35474965 PMCID: PMC9017138 DOI: 10.1016/j.crmeth.2022.100165] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/19/2021] [Accepted: 01/13/2022] [Indexed: 12/22/2022]
Abstract
Localization and tracking of individual receptors by single-molecule imaging opens unique possibilities to unravel the assembly and dynamics of signaling complexes in the plasma membrane. We present a comprehensive workflow for imaging and analyzing receptor diffusion and interaction in live cells at single molecule level with up to four colors. Two engineered, monomeric GFP variants, which are orthogonally recognized by anti-GFP nanobodies, are employed for efficient and selective labeling of target proteins in the plasma membrane with photostable fluorescence dyes. This labeling technique enables us to quantitatively resolve the stoichiometry and dynamics of the interferon-γ (IFNγ) receptor signaling complex in the plasma membrane of living cells by multicolor single-molecule imaging. Based on versatile spatial and spatiotemporal correlation analyses, we identify ligand-induced receptor homo- and heterodimerization. Multicolor single-molecule co-tracking and quantitative single-molecule Förster resonance energy transfer moreover reveals transient assembly of IFNγ receptor heterotetramers and confirms its structural architecture.
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Affiliation(s)
- Junel Sotolongo Bellón
- Department of Biology and Center for Cellular Nanoanalytics (CellNanOs), Osnabrück University, Osnabrück, Germany
| | - Oliver Birkholz
- Department of Biology and Center for Cellular Nanoanalytics (CellNanOs), Osnabrück University, Osnabrück, Germany
| | - Christian P. Richter
- Department of Biology and Center for Cellular Nanoanalytics (CellNanOs), Osnabrück University, Osnabrück, Germany
| | - Florian Eull
- Department of Biology and Center for Cellular Nanoanalytics (CellNanOs), Osnabrück University, Osnabrück, Germany
| | - Hella Kenneweg
- Department of Biology and Center for Cellular Nanoanalytics (CellNanOs), Osnabrück University, Osnabrück, Germany
| | - Stephan Wilmes
- Department of Biology and Center for Cellular Nanoanalytics (CellNanOs), Osnabrück University, Osnabrück, Germany
- Division of Cell Signalling and Immunology, University of Dundee, School of Life Sciences, Dundee, UK
| | - Ulrich Rothbauer
- Pharmaceutical Biotechnology, Eberhard-Karls-University, Tübingen, Germany
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen, Germany
| | - Changjiang You
- Department of Biology and Center for Cellular Nanoanalytics (CellNanOs), Osnabrück University, Osnabrück, Germany
| | - Mark R. Walter
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Rainer Kurre
- Department of Biology and Center for Cellular Nanoanalytics (CellNanOs), Osnabrück University, Osnabrück, Germany
| | - Jacob Piehler
- Department of Biology and Center for Cellular Nanoanalytics (CellNanOs), Osnabrück University, Osnabrück, Germany
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9
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Zhang X, Feng WH. Porcine Reproductive and Respiratory Syndrome Virus Evades Antiviral Innate Immunity via MicroRNAs Regulation. Front Microbiol 2022; 12:804264. [PMID: 34975824 PMCID: PMC8714953 DOI: 10.3389/fmicb.2021.804264] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 11/23/2021] [Indexed: 12/15/2022] Open
Abstract
Porcine reproductive and respiratory syndrome (PRRS) is one of the most important diseases in pigs, leading to significant economic losses in the swine industry worldwide. MicroRNAs (miRNAs) are small single-stranded non-coding RNAs involved in regulating gene expressions at the post-transcriptional levels. A variety of host miRNAs are dysregulated and exploited by PRRSV to escape host antiviral surveillance and help virus infection. In addition, PRRSV might encode miRNAs. In this review, we will summarize current progress on how PRRSV utilizes miRNAs for immune evasions. Increasing knowledge of the role of miRNAs in immune evasion will improve our understanding of PRRSV pathogenesis and help us develop new treatments for PRRSV-associated diseases.
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Affiliation(s)
- Xuan Zhang
- State Key Laboratory of Agrobiotechnology, Ministry of Agriculture Key Laboratory of Soil Microbiology, Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Wen-Hai Feng
- State Key Laboratory of Agrobiotechnology, Ministry of Agriculture Key Laboratory of Soil Microbiology, Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, China
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10
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Kan WL, Cheung Tung Shing KS, Nero TL, Hercus TR, Tvorogov D, Parker MW, Lopez AF. Messing with βc: A unique receptor with many goals. Semin Immunol 2021; 54:101513. [PMID: 34836771 DOI: 10.1016/j.smim.2021.101513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 10/23/2021] [Indexed: 11/16/2022]
Abstract
Our understanding of the biological role of the βc family of cytokines has evolved enormously since their initial identification as bone marrow colony stimulating factors in the 1960's. It has become abundantly clear over the intervening decades that this family of cytokines has truly astonishing pleiotropic capacity, capable of regulating not only hematopoiesis but also many other normal and pathological processes such as development, inflammation, allergy and cancer. As noted in the current pandemic, βc cytokines contribute to the cytokine storm seen in acutely ill COVID-19 patients. Ongoing studies to discover how these cytokines activate their receptor are revealing insights into the fundamental mechanisms that give rise to cytokine pleiotropy and are providing tantalizing glimpses of how discrete signaling pathways may be dissected for activation with novel ligands for therapeutic benefit.
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Affiliation(s)
- Winnie L Kan
- The Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, South Australia 5000, Australia.
| | - Karen S Cheung Tung Shing
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Tracy L Nero
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Timothy R Hercus
- The Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, South Australia 5000, Australia.
| | - Denis Tvorogov
- The Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, South Australia 5000, Australia.
| | - Michael W Parker
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria 3010, Australia; Australian Cancer Research Foundation Rational Drug Discovery Centre, St. Vincent's Institute of Medical Research, Fitzroy, Victoria 3065, Australia.
| | - Angel F Lopez
- The Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, South Australia 5000, Australia; Department of Medicine, University of Adelaide, Adelaide, South Australia 5000, Australia; Australian Cancer Research Foundation Cancer Genomics Facility, SA Pathology, Adelaide, South Australia 5000, Australia.
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11
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Litov L, Petkov P, Rangelov M, Ilieva N, Lilkova E, Todorova N, Krachmarova E, Malinova K, Gospodinov A, Hristova R, Ivanov I, Nacheva G. Molecular Mechanism of the Anti-Inflammatory Action of Heparin. Int J Mol Sci 2021; 22:10730. [PMID: 34639073 PMCID: PMC8509397 DOI: 10.3390/ijms221910730] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/27/2021] [Accepted: 09/30/2021] [Indexed: 12/18/2022] Open
Abstract
Our objective is to reveal the molecular mechanism of the anti-inflammatory action of low-molecular-weight heparin (LMWH) based on its influence on the activity of two key cytokines, IFNγ and IL-6. The mechanism of heparin binding to IFNγ and IL-6 and the resulting inhibition of their activity were studied by means of extensive molecular-dynamics simulations. The effect of LMWH on IFNγ signalling inside stimulated WISH cells was investigated by measuring its antiproliferative activity and the translocation of phosphorylated STAT1 in the nucleus. We found that LMWH binds with high affinity to IFNγ and is able to fully inhibit the interaction with its cellular receptor. It also influences the biological activity of IL-6 by binding to either IL-6 or IL-6/IL-6Rα, thus preventing the formation of the IL-6/IL-6Rα/gp130 signalling complex. These findings shed light on the molecular mechanism of the anti-inflammatory action of LMWH and underpin its ability to influence favourably conditions characterised by overexpression of these two cytokines. Such conditions are not only associated with autoimmune diseases, but also with inflammatory processes, in particular with COVID-19. Our results put forward heparin as a promising means for the prevention and suppression of severe CRS and encourage further investigations on its applicability as an anti-inflammatory agent.
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Affiliation(s)
- Leandar Litov
- Faculty of Physics, Sofia University “St. Kl. Ohridski”, 5, James Bourchier Blvd, 1164 Sofia, Bulgaria;
| | - Peicho Petkov
- Faculty of Physics, Sofia University “St. Kl. Ohridski”, 5, James Bourchier Blvd, 1164 Sofia, Bulgaria;
| | - Miroslav Rangelov
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 9, Acad. G. Bonchev Str., 1113 Sofia, Bulgaria;
| | - Nevena Ilieva
- Institute of Information and Communication Technologies, Bulgarian Academy of Sciences, 25A, Acad. G. Bonchev Str., 1113 Sofi, Bulgaria; (N.I.); (E.L.)
| | - Elena Lilkova
- Institute of Information and Communication Technologies, Bulgarian Academy of Sciences, 25A, Acad. G. Bonchev Str., 1113 Sofi, Bulgaria; (N.I.); (E.L.)
| | - Nadezhda Todorova
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 2, Gagarin Street, 1113 Sofia, Bulgaria;
| | - Elena Krachmarova
- Institute of Molecular Biology “Roumen Tsanev”,Bulgarian Academy of Sciences, 21, Acad. G. Bonchev Str., 1113 Sofia, Bulgaria; (E.K.); (K.M.); (A.G.); (R.H.); (I.I.); (G.N.)
| | - Kristina Malinova
- Institute of Molecular Biology “Roumen Tsanev”,Bulgarian Academy of Sciences, 21, Acad. G. Bonchev Str., 1113 Sofia, Bulgaria; (E.K.); (K.M.); (A.G.); (R.H.); (I.I.); (G.N.)
| | - Anastas Gospodinov
- Institute of Molecular Biology “Roumen Tsanev”,Bulgarian Academy of Sciences, 21, Acad. G. Bonchev Str., 1113 Sofia, Bulgaria; (E.K.); (K.M.); (A.G.); (R.H.); (I.I.); (G.N.)
| | - Rossitsa Hristova
- Institute of Molecular Biology “Roumen Tsanev”,Bulgarian Academy of Sciences, 21, Acad. G. Bonchev Str., 1113 Sofia, Bulgaria; (E.K.); (K.M.); (A.G.); (R.H.); (I.I.); (G.N.)
| | - Ivan Ivanov
- Institute of Molecular Biology “Roumen Tsanev”,Bulgarian Academy of Sciences, 21, Acad. G. Bonchev Str., 1113 Sofia, Bulgaria; (E.K.); (K.M.); (A.G.); (R.H.); (I.I.); (G.N.)
| | - Genoveva Nacheva
- Institute of Molecular Biology “Roumen Tsanev”,Bulgarian Academy of Sciences, 21, Acad. G. Bonchev Str., 1113 Sofia, Bulgaria; (E.K.); (K.M.); (A.G.); (R.H.); (I.I.); (G.N.)
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12
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Genua M, Garçon LA, Sergeeva YN, Saesen E, Musnier B, Buhot A, Billon M, Gout E, Sadir R, Lortat-Jacob H, Le Narvor C, Bonnaffé D, Livache T, Hou Y. Discrimination of deletion to point cytokine mutants based on an array of cross-reactive receptors mimicking protein recognition by heparan sulfate. Anal Bioanal Chem 2021; 414:551-559. [PMID: 34258651 DOI: 10.1007/s00216-021-03516-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/15/2021] [Accepted: 06/29/2021] [Indexed: 10/20/2022]
Abstract
Differential sensing of proteins based on cross-reactive arrays and pattern recognition is a promising technique for the detection and identification of proteins. In this study, a rational biomimetic strategy has been used to prepare sensing materials capable of discriminating structurally similar proteins, such as deletion and point mutants of a cytokine, by mimicking the biological properties of heparan sulfate (HS). Using the self-assembly of two disaccharides, lactose and sulfated lactose at various ratios on the surface of a chip, an array of combinatorial cross-reactive receptors has been prepared. Coupling with surface plasmon resonance imaging (SPRi), the obtained cross-reactive array is very efficient for protein sensing. It is able to detect HS binding proteins (HSbps) such as IFNγ at nanomolar concentrations. Moreover, such a system is capable of discriminating between IFNγ and its mutants with good selectivity.
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Affiliation(s)
- Maria Genua
- Université Grenoble Alpes, CEA, CNRS, IRIG-SyMMES, 38000, Grenoble, France
| | | | - Yulia N Sergeeva
- Université Grenoble Alpes, CEA, CNRS, IRIG-SyMMES, 38000, Grenoble, France
| | - Els Saesen
- Institut de Biologie Structurale, UMR 5075, Université Grenoble Alpes, CNRS, CEA, 38000, Grenoble, France
| | - Benjamin Musnier
- Université Grenoble Alpes, CEA, CNRS, IRIG-SyMMES, 38000, Grenoble, France
| | - Arnaud Buhot
- Université Grenoble Alpes, CEA, CNRS, IRIG-SyMMES, 38000, Grenoble, France
| | - Martial Billon
- Université Grenoble Alpes, CEA, CNRS, IRIG-SyMMES, 38000, Grenoble, France
| | - Evelyne Gout
- Institut de Biologie Structurale, UMR 5075, Université Grenoble Alpes, CNRS, CEA, 38000, Grenoble, France
| | - Rabia Sadir
- Institut de Biologie Structurale, UMR 5075, Université Grenoble Alpes, CNRS, CEA, 38000, Grenoble, France
| | - Hugues Lortat-Jacob
- Institut de Biologie Structurale, UMR 5075, Université Grenoble Alpes, CNRS, CEA, 38000, Grenoble, France
| | - Christine Le Narvor
- Université Paris-Saclay, CNRS, Institut de chimie moléculaire et des matériaux d'Orsay, 91405, Orsay, France
| | - David Bonnaffé
- Université Paris-Saclay, CNRS, Institut de chimie moléculaire et des matériaux d'Orsay, 91405, Orsay, France
| | - Thierry Livache
- Université Grenoble Alpes, CEA, CNRS, IRIG-SyMMES, 38000, Grenoble, France
| | - Yanxia Hou
- Université Grenoble Alpes, CEA, CNRS, IRIG-SyMMES, 38000, Grenoble, France.
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13
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Dutta N, Lillehoj PB, Estrela P, Dutta G. Electrochemical Biosensors for Cytokine Profiling: Recent Advancements and Possibilities in the Near Future. BIOSENSORS 2021; 11:94. [PMID: 33806879 PMCID: PMC8004910 DOI: 10.3390/bios11030094] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/14/2021] [Accepted: 03/18/2021] [Indexed: 02/07/2023]
Abstract
Cytokines are soluble proteins secreted by immune cells that act as molecular messengers relaying instructions and mediating various functions performed by the cellular counterparts of the immune system, by means of a synchronized cascade of signaling pathways. Aberrant expression of cytokines can be indicative of anomalous behavior of the immunoregulatory system, as seen in various illnesses and conditions, such as cancer, autoimmunity, neurodegeneration and other physiological disorders. Cancer and autoimmune diseases are particularly adept at developing mechanisms to escape and modulate the immune system checkpoints, reflected by an altered cytokine profile. Cytokine profiling can provide valuable information for diagnosing such diseases and monitoring their progression, as well as assessing the efficacy of immunotherapeutic regiments. Toward this goal, there has been immense interest in the development of ultrasensitive quantitative detection techniques for cytokines, which involves technologies from various scientific disciplines, such as immunology, electrochemistry, photometry, nanotechnology and electronics. This review focusses on one aspect of this collective effort: electrochemical biosensors. Among the various types of biosensors available, electrochemical biosensors are one of the most reliable, user-friendly, easy to manufacture, cost-effective and versatile technologies that can yield results within a short period of time, making it extremely promising for routine clinical testing.
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Affiliation(s)
- Nirmita Dutta
- School of Medical Science and Technology (SMST), Indian Institute of Technology Kharagpur, Kharagpur 721302, India;
| | - Peter B. Lillehoj
- Department of Mechanical Engineering, Rice University, Houston, TX 77005, USA;
| | - Pedro Estrela
- Centre for Biosensors, Bioelectronics and Biodevices (C3Bio) and Department of Electronic & Electrical Engineering, University of Bath, Bath BA2 7AY, UK
| | - Gorachand Dutta
- School of Medical Science and Technology (SMST), Indian Institute of Technology Kharagpur, Kharagpur 721302, India;
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14
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Menzel S, Koudelka T, Rissiek B, Haag F, Meyer-Schwesinger C, Tholey A, Koch-Nolte F. ADP-Ribosylation Regulates the Signaling Function of IFN-γ. Front Immunol 2021; 12:642545. [PMID: 33763084 PMCID: PMC7983947 DOI: 10.3389/fimmu.2021.642545] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/10/2021] [Indexed: 01/22/2023] Open
Abstract
Murine T cells express the GPI-anchored ADP-ribosyltransferase 2.2 (ARTC2.2) on the cell surface. In response to T cell activation or extracellular NAD+ or ATP-mediated gating of the P2X7 ion channel ARTC2.2 is shed from the cell surface as a soluble enzyme. Shedding alters the target specificity of ARTC2.2 from cell surface proteins to secreted proteins. Here we demonstrate that shed ARTC2.2 potently ADP-ribosylates IFN-γ in addition to other cytokines. Using mass spectrometry, we identify arginine 128 as the target site of ADP-ribosylation. This residue has been implicated to play a key role in binding of IFN-γ to the interferon receptor 1 (IFNR1). Indeed, binding of IFN-γ to IFNR1 blocks ADP-ribosylation of IFN-γ. Moreover, ADP-ribosylation of IFN-γ inhibits the capacity of IFN-γ to induce STAT1 phosphorylation in macrophages and upregulation of the proteasomal subunit ß5i and the proteasomal activator PA28-α in podocytes. Our results show that ADP-ribosylation inhibits the signaling functions of IFN-γ and point to a new regulatory mechanism for controlling signaling by IFN-γ.
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Affiliation(s)
- Stephan Menzel
- Institute of Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tomas Koudelka
- Institute of Experimental Medicine, AG Systematic Proteome Research and Bioanalytics, Christian-Albrechts-Universität, Kiel, Germany
| | - Björn Rissiek
- Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Friedrich Haag
- Institute of Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Catherine Meyer-Schwesinger
- Institute of Cellular and Integrative Physiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Andreas Tholey
- Institute of Experimental Medicine, AG Systematic Proteome Research and Bioanalytics, Christian-Albrechts-Universität, Kiel, Germany
| | - Friedrich Koch-Nolte
- Institute of Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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15
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Rosa BA, Ahmed M, Singh DK, Choreño-Parra JA, Cole J, Jiménez-Álvarez LA, Rodríguez-Reyna TS, Singh B, Gonzalez O, Carrion R, Schlesinger LS, Martin J, Zúñiga J, Mitreva M, Kaushal D, Khader SA. IFN signaling and neutrophil degranulation transcriptional signatures are induced during SARS-CoV-2 infection. Commun Biol 2021; 4:290. [PMID: 33674719 PMCID: PMC7935909 DOI: 10.1038/s42003-021-01829-4] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 01/20/2021] [Indexed: 01/31/2023] Open
Abstract
SARS-CoV-2 virus has infected more than 92 million people worldwide resulting in the Coronavirus disease 2019 (COVID-19). Using a rhesus macaque model of SARS-CoV-2 infection, we have characterized the transcriptional signatures induced in the lungs of juvenile and old macaques following infection. Genes associated with Interferon (IFN) signaling, neutrophil degranulation and innate immune pathways are significantly induced in macaque infected lungs, while pathways associated with collagen formation are downregulated, as also seen in lungs of macaques with tuberculosis. In COVID-19, increasing age is a significant risk factor for poor prognosis and increased mortality. Type I IFN and Notch signaling pathways are significantly upregulated in lungs of juvenile infected macaques when compared with old infected macaques. These results are corroborated with increased peripheral neutrophil counts and neutrophil lymphocyte ratio in older individuals with COVID-19 disease. Together, our transcriptomic studies have delineated disease pathways that improve our understanding of the immunopathogenesis of COVID-19.
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Affiliation(s)
- Bruce A Rosa
- Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Mushtaq Ahmed
- Department of Molecular Microbiology, Washington University in St. Louis, St. Louis, MO, USA
| | - Dhiraj K Singh
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX, USA
| | - José Alberto Choreño-Parra
- Laboratory of Immunobiology and Genetics, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Journey Cole
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX, USA
| | - Luis Armando Jiménez-Álvarez
- Laboratory of Immunobiology and Genetics, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Tatiana Sofía Rodríguez-Reyna
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Bindu Singh
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX, USA
| | - Olga Gonzalez
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX, USA
| | - Ricardo Carrion
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX, USA
| | - Larry S Schlesinger
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX, USA
| | - John Martin
- Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Joaquín Zúñiga
- Laboratory of Immunobiology and Genetics, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Makedonka Mitreva
- Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA.
| | - Deepak Kaushal
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX, USA.
| | - Shabaana A Khader
- Department of Molecular Microbiology, Washington University in St. Louis, St. Louis, MO, USA.
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16
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Proteomic Analysis of ISGylation in Immortalized Porcine Alveolar Macrophage Cell Lines Induced by Type I Interferon. Vaccines (Basel) 2021; 9:vaccines9020164. [PMID: 33671165 PMCID: PMC7922875 DOI: 10.3390/vaccines9020164] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/12/2021] [Accepted: 02/13/2021] [Indexed: 12/21/2022] Open
Abstract
Interferon-stimulated gene product 15 (ISG15), a ubiquitin-like molecule, can be conjugated to protein substrates through a reversible process known as ISGylation. ISG15 and ISGylation are both strongly upregulated by type I interferons and play putative key roles in host innate immunity against viral infection. However, the function of ISGylation and identities of ISGylation substrates are largely unknown. Here, a novel monoclonal antibody (Mab) that specifically recognizes porcine ISG15 (pISG15) was employed to capture ISG15-conjugated proteins from IFNs-stimulated porcine cell lysates. Next, Mab-captured conjugates were analyzed using proteomics-based tools to identify potential ISGylation protein targets in order to elucidate the roles of ISG15 and ISGylation in porcine cells. Subsequently, 190 putative ISGylation sites were detected within 98 identified ISGylation candidates; several candidates contained more than one ISGylation-modifiable lysine residue, including pISG15 itself. Motif enrichment analysis of confirmed ISGylation sites demonstrated a moderate bias towards certain sites with specific upstream amino acid residues. Meanwhile, results of Gene Ontology (GO)-based annotation and functional enrichment and protein-protein interaction (PPI) network analyses of porcine ISG15-conjugated substrate proteins indicated that these substrates were mainly associated with the host metabolism, especially nucleotide metabolic pathways that ultimately may participate in cellular antiviral defenses. Notably, several ISGs (MX1, IFIT1, OAS1, ISG15 and putative ISG15 E3 ligase Herc6) were also identified as putative ISGylation substrates within a regulatory loop involving ISGylation of ISGs themselves. Taken together, proteomics analysis of porcine ISGylation substrates revealed putative functional roles of ISG15 and novel host ISGylation targets that may ultimately be involved in cellular antiviral responses.
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17
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Walter MR. The Role of Structure in the Biology of Interferon Signaling. Front Immunol 2020; 11:606489. [PMID: 33281831 PMCID: PMC7689341 DOI: 10.3389/fimmu.2020.606489] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 10/19/2020] [Indexed: 12/20/2022] Open
Abstract
Interferons (IFNs) are a family of cytokines with the unique ability to induce cell intrinsic programs that enhance resistance to viral infection. Induction of an antiviral state at the cell, tissue, organ, and organismal level is performed by three distinct IFN families, designated as Type-I, Type-II, and Type-III IFNs. Overall, there are 21 human IFNs, (16 type-I, 12 IFNαs, IFNβ, IFNϵ, IFNκ, and IFNω; 1 type-II, IFNγ; and 4 type-III, IFNλ1, IFNλ2, IFNλ3, and IFNλ4), that induce pleotropic cellular activities essential for innate and adaptive immune responses against virus and other pathogens. IFN signaling is initiated by binding to distinct heterodimeric receptor complexes. The three-dimensional structures of the type-I (IFNα/IFNAR1/IFNAR2), type-II (IFNγ/IFNGR1/IFNGR2), and type-III (IFNλ3/IFNλR1/IL10R2) signaling complexes have been determined. Here, we highlight similar and unique features of the IFNs, their cell surface complexes and discuss their role in inducing downstream IFN signaling responses.
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Affiliation(s)
- Mark R Walter
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, United States
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18
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Rosa BA, Ahmed M, Singh DK, Choreño-Parra JA, Cole J, Jiménez-Álvarez LA, Rodríguez-Reyna TS, Singh B, Gonzalez O, Carrion R, Schlesinger LS, Martin J, Zúñiga J, Mitreva M, Khader SA, Kaushal D. IFN signaling and neutrophil degranulation transcriptional signatures are induced during SARS-CoV-2 infection. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2020. [PMID: 32793903 PMCID: PMC7418717 DOI: 10.1101/2020.08.06.239798] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The novel virus SARS-CoV-2 has infected more than 14 million people worldwide resulting in the Coronavirus disease 2019 (COVID-19). Limited information on the underlying immune mechanisms that drive disease or protection during COVID-19 severely hamper development of therapeutics and vaccines. Thus, the establishment of relevant animal models that mimic the pathobiology of the disease is urgent. Rhesus macaques infected with SARS-CoV-2 exhibit disease pathobiology similar to human COVID-19, thus serving as a relevant animal model. In the current study, we have characterized the transcriptional signatures induced in the lungs of juvenile and old rhesus macaques following SARS-CoV-2 infection. We show that genes associated with Interferon (IFN) signaling, neutrophil degranulation and innate immune pathways are significantly induced in macaque infected lungs, while pathways associated with collagen formation are downregulated. In COVID-19, increasing age is a significant risk factor for poor prognosis and increased mortality. We demonstrate that Type I IFN and Notch signaling pathways are significantly upregulated in lungs of juvenile infected macaques when compared with old infected macaques. These results are corroborated with increased peripheral neutrophil counts and neutrophil lymphocyte ratio in older individuals with COVID-19 disease. In contrast, pathways involving VEGF are downregulated in lungs of old infected macaques. Using samples from humans with SARS-CoV-2 infection and COVID-19, we validate a subset of our findings. Finally, neutrophil degranulation, innate immune system and IFN gamma signaling pathways are upregulated in both tuberculosis and COVID-19, two pulmonary diseases where neutrophils are associated with increased severity. Together, our transcriptomic studies have delineated disease pathways to improve our understanding of the immunopathogenesis of COVID-19 to facilitate the design of new therapeutics for COVID-19.
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Affiliation(s)
- Bruce A Rosa
- Department of Medicine, Washington University in St. Louis, St. Louis, MO 63110
| | - Mushtaq Ahmed
- Department of Molecular Microbiology, Washington University in St. Louis, St. Louis, MO 63110
| | - Dhiraj K Singh
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX 78245
| | - José Alberto Choreño-Parra
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico.,Laboratory of Immunobiology and Genetics, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Journey Cole
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX 78245
| | - Luis Armando Jiménez-Álvarez
- Laboratory of Immunobiology and Genetics, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Tatiana Sofía Rodríguez-Reyna
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Bindu Singh
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX 78245
| | - Olga Gonzalez
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX 78245
| | - Ricardo Carrion
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX 78245
| | - Larry S Schlesinger
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX 78245
| | - John Martin
- Department of Medicine, Washington University in St. Louis, St. Louis, MO 63110
| | - Joaquín Zúñiga
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico.,Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Mexico City, Mexico
| | - Makedonka Mitreva
- Department of Medicine, Washington University in St. Louis, St. Louis, MO 63110
| | - Shabaana A Khader
- Department of Molecular Microbiology, Washington University in St. Louis, St. Louis, MO 63110
| | - Deepak Kaushal
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX 78245
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19
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Tarasov SA, Gorbunov EA, Don ES, Emelyanova AG, Kovalchuk AL, Yanamala N, Schleker ASS, Klein-Seetharaman J, Groenestein R, Tafani JP, van der Meide P, Epstein OI. Insights into the Mechanism of Action of Highly Diluted Biologics. THE JOURNAL OF IMMUNOLOGY 2020; 205:1345-1354. [PMID: 32727888 DOI: 10.4049/jimmunol.2000098] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 07/04/2020] [Indexed: 12/12/2022]
Abstract
The therapeutic use of Abs in cancer, autoimmunity, transplantation, and other fields is among the major biopharmaceutical advances of the 20th century. Broader use of Ab-based drugs is constrained because of their high production costs and frequent side effects. One promising approach to overcome these limitations is the use of highly diluted Abs, which are produced by gradual reduction of an Ab concentration to an extremely low level. This technology was used to create a group of drugs for the treatment of various diseases, depending on the specificity of the used Abs. Highly diluted Abs to IFN-γ (hd-anti-IFN-γ) have been demonstrated to be efficacious against influenza and other respiratory infections in a variety of preclinical and clinical studies. In the current study, we provide evidence for a possible mechanism of action of hd-anti-IFN-γ. Using high-resolution solution nuclear magnetic resonance spectroscopy, we show that the drug induced conformational changes in the IFN-γ molecule. Chemical shift changes occurred in the amino acids located primarily at the dimer interface and at the C-terminal region of IFN-γ. These molecular changes could be crucial for the function of the protein, as evidenced by an observed hd-anti-IFN-γ-induced increase in the specific binding of IFN-γ to its receptor in U937 cells, enhanced induced production of IFN-γ in human PBMC culture, and increased survival of influenza A-infected mice.
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Affiliation(s)
- Sergey A Tarasov
- OOO "NPF "Materia Medica Holding," 127473 Moscow, Russian Federation.,The Institute of General Pathology and Pathophysiology, 125315 Moscow, Russian Federation
| | | | - Elena S Don
- OOO "NPF "Materia Medica Holding," 127473 Moscow, Russian Federation.,The Institute of General Pathology and Pathophysiology, 125315 Moscow, Russian Federation
| | - Alexandra G Emelyanova
- OOO "NPF "Materia Medica Holding," 127473 Moscow, Russian Federation.,The Institute of General Pathology and Pathophysiology, 125315 Moscow, Russian Federation
| | | | - Naveena Yanamala
- Department of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15260
| | - A Sylvia S Schleker
- Department of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15260
| | - Judith Klein-Seetharaman
- Department of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15260
| | | | | | | | - Oleg I Epstein
- OOO "NPF "Materia Medica Holding," 127473 Moscow, Russian Federation.,The Institute of General Pathology and Pathophysiology, 125315 Moscow, Russian Federation
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20
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Chen HJ, Tas SW, de Winther MPJ. Type-I interferons in atherosclerosis. J Exp Med 2020; 217:132613. [PMID: 31821440 PMCID: PMC7037237 DOI: 10.1084/jem.20190459] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 10/05/2019] [Accepted: 10/30/2019] [Indexed: 12/13/2022] Open
Abstract
Chen et al. review the effects of type-I IFNs and the potential of anti–type-I IFN therapies in atherosclerosis. The contribution of dyslipidemia and inflammation in atherosclerosis is well established. Along with effective lipid-lowering treatments, the recent success of clinical trials with anti-inflammatory therapies and the accelerated atherosclerosis in many autoimmune diseases suggest that targeting inflammation may open new avenues for the prevention and the treatment for cardiovascular diseases (CVDs). In the past decades, studies have widened the role of type-I interferons (IFNs) in disease, from antivirus defense to autoimmune responses and immuno-metabolic syndromes. While elevated type-I IFN level in serum is associated with CVD incidence in patients with interferonopathies, experimental data have attested that type-I IFNs affect plaque-residing macrophages, potentiate foam cell and extracellular trap formation, induce endothelial dysfunction, alter the phenotypes of dendritic cells and T and B lymphocytes, and lead to exacerbated atherosclerosis outcomes. In this review, we discuss the production and the effects of type-I IFNs in different atherosclerosis-associated cell types from molecular biology studies, animal models, and clinical observations, and the potential of new therapies against type-I IFN signaling for atherosclerosis.
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Affiliation(s)
- Hung-Jen Chen
- Experimental Vascular Biology, Department of Medical Biochemistry, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Sander W Tas
- Amsterdam Rheumatology and Immunology Center, Department of Rheumatology and Clinical Immunology, and Laboratory for Experimental Immunology, Academic Medical Center/University of Amsterdam, Amsterdam, Netherlands
| | - Menno P J de Winther
- Experimental Vascular Biology, Department of Medical Biochemistry, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands.,Institute for Cardiovascular Prevention, Ludwig Maximilians University, Munich, Germany
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21
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Ouyang Y, Zhong X, Liao H, Zhu P, Luo K, Zhu H. A New Method for Screening Natural Products to Stimulate IFN-γ Production in Jurkat Human T Lymphocytes. SLAS DISCOVERY 2020; 26:130-139. [PMID: 32441185 DOI: 10.1177/2472555220922475] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Interferon-γ (IFN-γ) is a critical cytokine in the defense against viral and bacterial infection. It is mainly produced by natural killer cells and activated T cells. Given its regulatory role in coordinating cellular and humoral immune responses, IFN-γ is considered to be an effective therapeutic agent in the treatment of viral infection. Here we established a fluorescence-based high-content screening model to find small molecules that can stimulate the production of IFN-γ in human Jurkat cells. After a primary screening of 267 natural products, two hits, Astragalus polyphenols and 6-shogaol, were identified to promote the activity of the IFN-γ promoter and subsequently validated by the flow cytometry assay. Obviously, both Astragalus polyphenols and 6-shogaol exhibited potential to induce the transcription and expression of IFN-γ in a dose-dependent manner. These results indicated that our high-content screening model could be a credible and useful platform to contribute to the discovery of novel molecules to promote the expression of IFN-γ and provide leading compounds for the treatment of viral infectious diseases.
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Affiliation(s)
- Yan Ouyang
- Neonatal/Pediatric Intensive Care Unit, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China.,Institute of Pediatrics Medicine, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Xiaoming Zhong
- Neonatal/Pediatric Intensive Care Unit, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Hongqun Liao
- Neonatal/Pediatric Intensive Care Unit, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Pengcheng Zhu
- Institute of Pediatrics Medicine, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Kaiyuan Luo
- Neonatal/Pediatric Intensive Care Unit, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China.,Institute of Pediatrics Medicine, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China.,Pediatric Internal Medicine, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Huifang Zhu
- Neonatal/Pediatric Intensive Care Unit, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China.,Institute of Pediatrics Medicine, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
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22
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Christie SM, Ham TR, Gilmore GT, Toth PD, Leipzig ND, Smith AW. Covalently Immobilizing Interferon-γ Drives Filopodia Production through Specific Receptor-Ligand Interactions Independently of Canonical Downstream Signaling. Bioconjug Chem 2020; 31:1362-1369. [PMID: 32329609 PMCID: PMC10243121 DOI: 10.1021/acs.bioconjchem.0c00105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Immobilizing a signaling protein to guide cell behavior has been employed in a wide variety of studies. This approach draws inspiration from biology, where specific, affinity-based interactions between membrane receptors and immobilized proteins in the extracellular matrix guide many developmental and homeostatic processes. Synthetic immobilization approaches, however, do not necessarily recapitulate the in vivo signaling system and potentially lead to artificial receptor-ligand interactions. To investigate the effects of one example of engineered receptor-ligand interactions, we focus on the immobilization of interferon-γ (IFN-γ), which has been used to drive differentiation of neural stem cells (NSCs). To isolate the effect of ligand immobilization, we transfected Cos-7 cells with only interferon-γ receptor 1 (IFNγR1), not IFNγR2, so that the cells could bind IFN-γ but were incapable of canonical signal transduction. We then exposed the cells to surfaces containing covalently immobilized IFN-γ and studied membrane morphology, receptor-ligand dynamics, and receptor activation. We found that exposing cells to immobilized but not soluble IFN-γ drove the formation of filopodia in both NSCs and Cos-7, showing that covalently immobilizing IFN-γ is enough to affect cell behavior, independently of canonical downstream signaling. Overall, this work suggests that synthetic growth factor immobilization can influence cell morphology beyond enhancing canonical cell responses through the prolonged signaling duration or spatial patterning enabled by protein immobilization. This suggests that differentiation of NSCs could be driven by canonical and non-canonical pathways when IFN-γ is covalently immobilized. This finding has broad implications for bioengineering approaches to guide cell behavior, as one ligand has the potential to impact multiple pathways even when cells lack the canonical signal transduction machinery.
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Affiliation(s)
- Shaun M. Christie
- Department of Chemistry, The University of Akron, 190 Buchtel Common, Akron, Ohio, 44325, United States
| | - Trevor R. Ham
- Department of Biomedical Engineering, The University of Akron, Auburn Science and Engineering Center #275, West Tower, Akron, OH 44325, United States
| | - Grant T. Gilmore
- Department of Chemistry, The University of Akron, 190 Buchtel Common, Akron, Ohio, 44325, United States
| | - Paul D. Toth
- Department of Chemistry, The University of Akron, 190 Buchtel Common, Akron, Ohio, 44325, United States
| | - Nic D. Leipzig
- Department of Biomedical Engineering, The University of Akron, Auburn Science and Engineering Center #275, West Tower, Akron, OH 44325, United States
- Department of Chemical, Biomolecular, and Corrosion Engineering, The University of Akron, 302 Buchtel Common, Akron, Ohio, 44325, United States
| | - Adam W. Smith
- Department of Chemistry, The University of Akron, 190 Buchtel Common, Akron, Ohio, 44325, United States
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23
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Goraya MU, Zaighum F, Sajjad N, Anjum FR, Sakhawat I, Rahman SU. Web of interferon stimulated antiviral factors to control the influenza A viruses replication. Microb Pathog 2019; 139:103919. [PMID: 31830579 DOI: 10.1016/j.micpath.2019.103919] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/25/2019] [Accepted: 12/09/2019] [Indexed: 01/20/2023]
Abstract
Influenza viruses cause mild to severe infections in animals and humans worldwide with significant morbidity and mortality. Infection of eukaryotic cells with influenza A viruses triggers the induction of innate immune system through the interaction between pattern recognition receptors (PRRs) and pathogen associated molecular patterns (PAMPs), which culminate in the induction of interferons (IFNs). Consequently, IFNs bind to their cognate receptors on the cellular membrane and activate the signaling pathway for transcriptional regulation of interferon-stimulated genes (ISGs) through Janus kinase-signal transducer and activator of transcription (JAK-STAT) pathway. Cumulative actions of these ISGs establish an antiviral state of the host. Several ISGs have been described, which play critical roles to inhibit the infection and replication of influenza A viruses at multiple steps of virus life cycle. In this review, the dynamics and redundancy of these ISGs against influenza A viruses are discussed. Additionally, current understanding and molecular mechanisms that are underlying the roles of ISGs in pathogenesis of influenza virus are critically reviewed.
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Affiliation(s)
- Mohsan Ullah Goraya
- Institute of Microbiology, University of Agriculture Faisalabad, 38000, Pakistan.
| | | | - Nelam Sajjad
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Faisal Rasheed Anjum
- Institute of Microbiology, University of Agriculture Faisalabad, 38000, Pakistan
| | - Irfan Sakhawat
- School of Science and Technology, Orebro University, SE-70182, Orebro, Sweden
| | - Sajjad Ur Rahman
- Institute of Microbiology, University of Agriculture Faisalabad, 38000, Pakistan.
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24
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Xu K, Jin L. The role of heparin/heparan sulphate in the IFN-γ-led Arena. Biochimie 2019; 170:1-9. [PMID: 31794784 DOI: 10.1016/j.biochi.2019.11.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 11/26/2019] [Indexed: 02/08/2023]
Abstract
IFN-γ (Interferon-gamma) is a pleiotropic cytokine. It is often involved in a variety of physiological processes by binding to the cell surface transmembrane receptor (IFN-γR) to initiate a series of signalling pathways that transmit external signals from cell surface receptors to the cell nucleus. Heparan sulphate (HS), a highly sulphated linear polysaccharide, is ubiquitous on the mammalian cell surface and extracellular matrix. Electrostatic interactions can be generated between the highly sulphated HS region and specific basic amino acid residues in the IFN-γ structure, thereby detaining IFN-γ on the cell surface, and the concentration of IFN-γ on the cell surface is thus, changed. IFN-γ retained on the cell surface will optimize the binding of IFN-γ to the transmembrane receptor resulting in high efficiency signalling. Heparin is a glycosaminoglycan with a structure similar to HS. The structural similarity provides a basis for modelling exogenous heparin dependence for interference with IFN-γ function. This model can be summarized as follows: First, the competitive binding effect; heparin bound to cytokines by competing with membrane-associated HS, causes a decrease in cytokine concentration on the cell surface. Second, the principle of priority occupancy; heparin can occupy the receptor binding site on cytokines, partially preventing the IFN-γ-IFN-γR interaction. These two models interfere with IFN-γ signal transmission. To decipher the mechanism by which heparin influences IFN-γ activity, studies of the structure-activity relationship are in progress. This paper summarizes research progress on the IFN-γ signalling pathway, heparin interference with IFN-γ activity and the structure-activity relationship between heparin and IFN-γ.
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Affiliation(s)
- Kening Xu
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, 266000, Shandong, PR China
| | - Lan Jin
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, 266000, Shandong, PR China.
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25
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Hertzog PJ, de Weerd NA. A structural "star" in interferon gamma signaling. Immunol Cell Biol 2019; 97:442-444. [PMID: 31131497 DOI: 10.1111/imcb.12255] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Paul J Hertzog
- Centre for Innate Immunity& Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC, Australia.,Department of Molecular & Translational Sciences, Monash University, 27-31 Wright St, Clayton, VIC, Australia
| | - Nicole A de Weerd
- Centre for Innate Immunity& Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC, Australia.,Department of Molecular & Translational Sciences, Monash University, 27-31 Wright St, Clayton, VIC, Australia
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26
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Mesev EV, LeDesma RA, Ploss A. Decoding type I and III interferon signalling during viral infection. Nat Microbiol 2019; 4:914-924. [PMID: 30936491 PMCID: PMC6554024 DOI: 10.1038/s41564-019-0421-x] [Citation(s) in RCA: 308] [Impact Index Per Article: 61.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 02/22/2019] [Indexed: 02/08/2023]
Abstract
Interferon (IFN)-mediated antiviral responses are central to host defence against viral infection. Despite the existence of at least 20 IFNs, there are only three known cell surface receptors. IFN signalling and viral evasion mechanisms form an immensely complex network that differs across species. In this Review, we begin by highlighting some of the advances that have been made towards understanding the complexity of differential IFN signalling inputs and outputs that contribute to antiviral defences. Next, we explore some of the ways viruses can interfere with, or circumvent, these defences. Lastly, we address the largely under-reviewed impact of IFN signalling on host tropism, and we offer perspectives on the future of research into IFN signalling complexity and viral evasion across species.
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Affiliation(s)
- Emily V Mesev
- Lewis Thomas Laboratory, Department of Molecular Biology, Princeton University, Princeton, NJ, USA
| | - Robert A LeDesma
- Lewis Thomas Laboratory, Department of Molecular Biology, Princeton University, Princeton, NJ, USA
| | - Alexander Ploss
- Lewis Thomas Laboratory, Department of Molecular Biology, Princeton University, Princeton, NJ, USA.
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27
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Noncanonical IFN Signaling, Steroids, and STATs: A Probable Role of V-ATPase. Mediators Inflamm 2019; 2019:4143604. [PMID: 31275057 PMCID: PMC6558600 DOI: 10.1155/2019/4143604] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 04/15/2019] [Indexed: 11/27/2022] Open
Abstract
A small group of only seven transcription factors known as STATs (signal transducer and activator of transcription) are considered to be canonical determinants of specific gene activation for a plethora of ligand/receptor systems. The activation of STATs involves a family of four tyrosine kinases called JAK kinases. JAK1 and JAK2 activate STAT1 in the cytoplasm at the heterodimeric gamma interferon (IFNγ) receptor, while JAK1 and TYK2 activate STAT1 and STAT2 at the type I IFN heterodimeric receptor. The same STATs and JAKs are also involved in signaling by functionally different cytokines, growth factors, and hormones. Related to this, IFNγ-activated STAT1 binds to the IFNγ-activated sequence (GAS) element, but so do other STATs that are not involved in IFNγ signaling. Activated JAKs such as JAK2 and TYK2 are also involved in the epigenetics of nucleosome unwrapping for exposure of DNA to transcription. Furthermore, activated JAKs and STATs appear to function coordinately for specific gene activation. These complex events have not been addressed in canonical STAT signaling. Additionally, the function of noncoding enhancer RNAs, including their role in enhancer/promoter interaction is not addressed in the canonical STAT signaling model. In this perspective, we show that JAK/STAT signaling, involving membrane receptors, is essentially a variation of cytoplasmic nuclear receptor signaling. Focusing on IFN signaling, we showed that ligand, IFN receptor, the JAKs, and the STATs all undergo endocytosis and ATP-dependent nuclear translocation to promoters of genes specifically activated by IFNs. We argue here that the vacuolar ATPase (V-ATPase) proton pump probably plays a key role in endosomal membrane crossing by IFNs for receptor cytoplasmic binding. Signaling of nuclear receptors such as those of estrogen and dihydrotestosterone provides templates for making sense of the specificity of gene activation by closely related cytokines, which has implications for lymphocyte phenotypes.
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28
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Talebi S, Saeedinia A, Zeinoddini M, Ahmadpour F, Sadeghizadeh M. Evaluation of a single amino acid substitution at position 79 of human IFN-α2b in interferon-receptor assembly and activity. Prep Biochem Biotechnol 2019; 49:735-743. [PMID: 31135267 DOI: 10.1080/10826068.2019.1566143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Type I interferons (IFNs) are homologous cytokines that bind to a cell surface receptor and establish signaling pathways that motivate immune responses. The purpose of the current study is to assess the activity of a novel-engineered IFN-α2b. The crystallographic structure of IFN-α2b and its receptors was acquired from Protein Data Bank. Various amino acid substitutions were designed based on structural properties and other biological characteristics of residues to find the most effective amino acid on IFN affinity to advanced activities. The IFN-α2b mutants and receptors have been modeled and the interactions between two proteins have been studied as in silico by protein-protein docking for both mutants and native forms. The proper nucleic acid sequence IFN-α2 (T79Q) has been prepared based on the selected mutant. The modified IFN gene was cloned in pcDNA 3.1(-) and introduced to Chinese Hamster Ovary (CHO) cell line. Antiviral and antiproliferative assays of native and IFN-α2 (T79Q) proteins were performed in vitro. The results showed two-fold increasing in IFN-α2 (T79Q) activity (antiviral and antiproliferative activity) in comparison to native IFN-α2b. This engineered IFN-α2b may have significant novel therapeutic applications and in silico studies can be an influential method for practical research function and structure of these molecules.
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Affiliation(s)
- Samira Talebi
- a Malek Ashtar University of Technology , Tehran , Iran.,b Trauma Research Centre, Baqiyatallah University of Medical Sciences , Tehran , Iran
| | | | | | - Fathollah Ahmadpour
- b Trauma Research Centre, Baqiyatallah University of Medical Sciences , Tehran , Iran
| | - Majid Sadeghizadeh
- c Department of Genetics, School of Biological Sciences, Tarbiat Modares University , Tehran , Iran
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29
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Morales J, Pawle RH, Akkilic N, Luo Y, Xavierselvan M, Albokhari R, Calderon IAC, Selfridge S, Minns R, Takiff L, Mallidi S, Clark HA. DNA-Based Photoacoustic Nanosensor for Interferon Gamma Detection. ACS Sens 2019; 4:1313-1322. [PMID: 30973005 DOI: 10.1021/acssensors.9b00209] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Tracking protein levels in the body is vital in both research and medicine, where understanding their physiological roles provides insight into their regulation in homeostasis and diseases. In medicine, protein levels are actively sampled since they continuously fluctuate, reflecting the status of biological systems and provide insight into patient health. One such protein is interferon gamma, a clinically relevant protein with immunoregulatory functions that play critical roles against infection. New tools for continuously monitoring protein levels in vivo are invaluable in monitoring real-time conditions of patients to allow better care. Here, we developed a DNA-based nanosensor for the photoacoustic detection of interferon gamma. This work demonstrates how we transformed a simple DNA motif, receptors, and a novel phthalocyanine dye into a proof-of-concept photoacoustic nanosensor for protein detection. Surface plasmon resonance kinetic analysis demonstrated that the nanosensor is responsive and reversible to interferon gamma with an affinity in the nanomolar range, KD1 = 167 nM and KD2 = 316 nM. As a reporter, our design includes a novel phthalocyanine-based photoacoustic dye that stacks in a J-aggregate, causing a 22.5% increase in signal. Upon receptor binding, the DNA structure bends to induce phthalocyanine dye stacking, resulting in a 55% increase in photoacoustic signal in the presence of 10 μM interferon gamma. This proof-of-concept nanosensor is a novel approach to the development of a photoacoustic sensor and may be adapted for other proteins of interest in the future for in vivo tracking.
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Affiliation(s)
- Jennifer Morales
- Department of Bioengineering, Northeastern University, Boston, Massachusetts 02115, United States,
| | - Robert H. Pawle
- Akita Innovations LLC, Billerica, Massachusetts 01862, United States,
| | - Namik Akkilic
- Department of Pharmaceutical Sciences, Northeastern University, Boston, Massachusetts 02115, United States,
| | - Yi Luo
- Department of Pharmaceutical Sciences, Northeastern University, Boston, Massachusetts 02115, United States,
| | - Marvin Xavierselvan
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States,
| | - Rayan Albokhari
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States,
| | - Isen Andrew C. Calderon
- Department of Bioengineering, Northeastern University, Boston, Massachusetts 02115, United States,
| | - Scott Selfridge
- Akita Innovations LLC, Billerica, Massachusetts 01862, United States,
| | - Richard Minns
- Akita Innovations LLC, Billerica, Massachusetts 01862, United States,
| | - Larry Takiff
- Akita Innovations LLC, Billerica, Massachusetts 01862, United States,
| | - Srivalleesha Mallidi
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, United States,
| | - Heather A. Clark
- Department of Bioengineering, Northeastern University, Boston, Massachusetts 02115, United States,
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
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Alspach E, Lussier DM, Schreiber RD. Interferon γ and Its Important Roles in Promoting and Inhibiting Spontaneous and Therapeutic Cancer Immunity. Cold Spring Harb Perspect Biol 2019; 11:a028480. [PMID: 29661791 PMCID: PMC6396335 DOI: 10.1101/cshperspect.a028480] [Citation(s) in RCA: 294] [Impact Index Per Article: 58.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Originally identified in studies of cellular resistance to viral infection, interferon (IFN)-γ is now known to represent a distinct member of the IFN family and plays critical roles not only in orchestrating both innate and adaptive immune responses against viruses, bacteria, and tumors, but also in promoting pathologic inflammatory processes. IFN-γ production is largely restricted to T lymphocytes and natural killer (NK) cells and can ultimately lead to the generation of a polarized immune response composed of T helper (Th)1 CD4+ T cells and CD8+ cytolytic T cells. In contrast, the temporally distinct elaboration of IFN-γ in progressively growing tumors also promotes a state of adaptive resistance caused by the up-regulation of inhibitory molecules, such as programmed-death ligand 1 (PD-L1) on tumor cell targets, and additional host cells within the tumor microenvironment. This review focuses on the diverse positive and negative roles of IFN-γ in immune cell activation and differentiation leading to protective immune responses, as well as the paradoxical effects of IFN-γ within the tumor microenvironment that determine the ultimate fate of that tumor in a cancer-bearing individual.
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Affiliation(s)
- Elise Alspach
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri 63110
| | - Danielle M Lussier
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri 63110
| | - Robert D Schreiber
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri 63110
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31
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Mendoza JL, Escalante NK, Jude KM, Sotolongo Bellon J, Su L, Horton TM, Tsutsumi N, Berardinelli SJ, Haltiwanger RS, Piehler J, Engleman EG, Garcia KC. Structure of the IFNγ receptor complex guides design of biased agonists. Nature 2019; 567:56-60. [PMID: 30814731 PMCID: PMC6561087 DOI: 10.1038/s41586-019-0988-7] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 01/25/2019] [Indexed: 01/09/2023]
Abstract
The cytokine interferon-γ (IFNγ) is a central coordinator of innate and adaptive immunity, but its highly pleiotropic actions have diminished its prospects for use as an immunotherapeutic agent. Here, we took a structure-based approach to decoupling IFNγ pleiotropy. We engineered an affinity-enhanced variant of the ligand-binding chain of the IFNγ receptor IFNγR1, which enabled us to determine the crystal structure of the complete hexameric (2:2:2) IFNγ-IFNγR1-IFNγR2 signalling complex at 3.25 Å resolution. The structure reveals the mechanism underlying deficits in IFNγ responsiveness in mycobacterial disease syndrome resulting from a T168N mutation in IFNγR2, which impairs assembly of the full signalling complex. The topology of the hexameric complex offers a blueprint for engineering IFNγ variants to tune IFNγ receptor signalling output. Unexpectedly, we found that several partial IFNγ agonists exhibited biased gene-expression profiles. These biased agonists retained the ability to induce upregulation of major histocompatibility complex class I antigen expression, but exhibited impaired induction of programmed death-ligand 1 expression in a wide range of human cancer cell lines, offering a route to decoupling immunostimulatory and immunosuppressive functions of IFNγ for therapeutic applications.
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Affiliation(s)
- Juan L Mendoza
- Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA, USA
- Departments of Molecular and Cellular Physiology and Structural Biology, Stanford University School of Medicine, Stanford, CA, USA
- Institute for Molecular Engineering and Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
| | - Nichole K Escalante
- Stanford Blood Center, Palo Alto, CA, USA
- Department of Pathology, School of Medicine, Stanford University, Palo Alto, CA, USA
| | - Kevin M Jude
- Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA, USA
- Departments of Molecular and Cellular Physiology and Structural Biology, Stanford University School of Medicine, Stanford, CA, USA
| | - Junel Sotolongo Bellon
- Division of Biophysics, Department of Biology, University of Osnabruck, Osnabruck, Germany
| | - Leon Su
- Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA, USA
- Departments of Molecular and Cellular Physiology and Structural Biology, Stanford University School of Medicine, Stanford, CA, USA
| | - Tim M Horton
- Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA, USA
- Departments of Molecular and Cellular Physiology and Structural Biology, Stanford University School of Medicine, Stanford, CA, USA
| | - Naotaka Tsutsumi
- Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA, USA
- Departments of Molecular and Cellular Physiology and Structural Biology, Stanford University School of Medicine, Stanford, CA, USA
| | | | | | - Jacob Piehler
- Division of Biophysics, Department of Biology, University of Osnabruck, Osnabruck, Germany
| | - Edgar G Engleman
- Stanford Blood Center, Palo Alto, CA, USA
- Department of Pathology, School of Medicine, Stanford University, Palo Alto, CA, USA
| | - K Christopher Garcia
- Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA, USA.
- Departments of Molecular and Cellular Physiology and Structural Biology, Stanford University School of Medicine, Stanford, CA, USA.
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Li B, Chen A, Zou S, Wu J, Wang H, Chen R, Luo M. Albumin fusion improves the pharmacokinetics and in vivo antitumor efficacy of canine interferon gamma. Int J Pharm 2019; 558:404-412. [DOI: 10.1016/j.ijpharm.2018.12.081] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 12/14/2018] [Accepted: 12/26/2018] [Indexed: 01/08/2023]
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Abramov VM, Kosarev IV, Motin VL, Khlebnikov VS, Vasilenko RN, Sakulin VK, Machulin AV, Uversky VN, Karlyshev AV. Binding of LcrV protein from Yersinia pestis to human T-cells induces apoptosis, which is completely blocked by specific antibodies. Int J Biol Macromol 2018; 122:1062-1070. [PMID: 30218736 DOI: 10.1016/j.ijbiomac.2018.09.054] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 09/11/2018] [Accepted: 09/11/2018] [Indexed: 11/29/2022]
Abstract
The V antigen (LcrV) of the plague bacterium Yersinia pestis is a potent protective protein that is considered as a vaccine component for humans. LcrV mediates the delivery of Yop toxins into host cells and upregulates TLR2-dependent IL-10 production. Although LcrV can interact with the receptor-bound human interferon-γ (hIFN-γ), the significance of these interactions in plague pathogenesis is not known. In this study, we determined the parameters of specific interactions of LcrV and LcrV68-326 with primary human thymocytes and Jurkat T-leukemia cells in the presence of receptor-bound hIFN-γ. Although the C-terminal region of hIFN-γ contains a GRRA138-141 site needed for high-affinity binding of LcrV and LcrV68-326, in the hIFN-γ homodimer, these GRRA138-141 target sites becomes accessible for targeting by LcrV or LcrV68-326 only after immobilization of the hIFN-γ homodimer on the hIFN-γ receptors of thymocytes or Jurkat T-cells. The interaction of LcrV or LcrV68-326 with receptor-bound hIFN-γ on the thymocytes or Jurkat T-cells caused apoptosis of both cell types, which can be completely blocked by the addition of monoclonal antibodies specific to the LEEL32-35 and DEEI203-206 sites of LcrV. The ability of LcrV to utilize hIFN-γ is insidious and may account in part for the severe symptoms of plague in humans.
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Affiliation(s)
- Vyacheslav M Abramov
- Department of Immunology and Biodefence, Institute of Immunological Engineering, 142380 Lyubuchany, Russia
| | - Igor V Kosarev
- Department of Immunology and Biodefence, Institute of Immunological Engineering, 142380 Lyubuchany, Russia
| | - Vladimir L Motin
- Department of Pathology/Microbiology & Immunology, University of Texas Medical Branch, Galverston, TX 77555, USA
| | - Valentin S Khlebnikov
- Department of Immunology and Biodefence, Institute of Immunological Engineering, 142380 Lyubuchany, Russia
| | - Raisa N Vasilenko
- Department of Immunology and Biodefence, Institute of Immunological Engineering, 142380 Lyubuchany, Russia
| | - Vadim K Sakulin
- Department of Immunology and Biodefence, Institute of Immunological Engineering, 142380 Lyubuchany, Russia
| | - Andrey V Machulin
- Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Pushchino 142290, Russia
| | - Vladimir N Uversky
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; Institute for Biological Instrumentation, Russian Academy of Sciences, Pushchino 142290, Russia.
| | - Andrey V Karlyshev
- Department of Science, Engineering and Computing, Kingston University, Kingston, UK
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Dufour A, Bellac CL, Eckhard U, Solis N, Klein T, Kappelhoff R, Fortelny N, Jobin P, Rozmus J, Mark J, Pavlidis P, Dive V, Barbour SJ, Overall CM. C-terminal truncation of IFN-γ inhibits proinflammatory macrophage responses and is deficient in autoimmune disease. Nat Commun 2018; 9:2416. [PMID: 29925830 PMCID: PMC6010466 DOI: 10.1038/s41467-018-04717-4] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Accepted: 05/18/2018] [Indexed: 01/02/2023] Open
Abstract
Controlled macrophage differentiation and activation in the initiation and resolution of inflammation is crucial for averting progression to chronic inflammatory and autoimmune diseases. Here we show a negative feedback mechanism for proinflammatory IFN-γ activation of macrophages driven by macrophage-associated matrix metalloproteinase 12 (MMP12). Through C-terminal truncation of IFN-γ at 135Glu↓Leu136 the IFN-γ receptor-binding site was efficiently removed thereby reducing JAK-STAT1 signaling and IFN-γ activation of proinflammatory macrophages. In acute peritonitis this signature was absent in Mmp12–/– mice and recapitulated in Mmp12+/+ mice treated with a MMP12-specific inhibitor. Similarly, loss-of-MMP12 increases IFN-γ–dependent proinflammatory markers and iNOS+/MHC class II+ macrophage accumulation with worse lymphadenopathy, arthritic synovitis and lupus glomerulonephritis. In active human systemic lupus erythematosus, MMP12 levels were lower and IFN-γ higher compared to treated patients or healthy individuals. Hence, macrophage proteolytic truncation of IFN-γ attenuates classical activation of macrophages as a prelude for resolving inflammation. IFN-γ is central in inflammatory pathogenesis, response to infection and autoimmune diseases. Here the authors show that MMP12 expression is reduced in patients with SLE and that MMP12 post-translationally truncates IFN-y, inhibiting its function and affecting pathogenesis of mouse models of peritonitis, SLE and rheumatoid arthritis.
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Affiliation(s)
- Antoine Dufour
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada.,Centre for Blood Research, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada.,Department of Physiology and Pharmacology McCaig Institute for Bone and Joint Health, Cumming School of Medicine, HRIC 3C64 3330 Hospital, Dr NW Calgary, T2N 4N1, AB, Canada
| | - Caroline L Bellac
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada.,Centre for Blood Research, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada.,Swissmedic, Swiss Agency for Therapeutics Products, Hallerstrasse 7, P.O. Box, Bern 9, CH-3000, Switzerland
| | - Ulrich Eckhard
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada.,Centre for Blood Research, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada
| | - Nestor Solis
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada.,Centre for Blood Research, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada
| | - Theo Klein
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada.,Centre for Blood Research, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada
| | - Reinhild Kappelhoff
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada.,Centre for Blood Research, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada
| | - Nikolaus Fortelny
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada.,Centre for Blood Research, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada.,Department of Biochemistry and Molecular Biology, University of British Columbia, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada
| | - Parker Jobin
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada.,Centre for Blood Research, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada.,Department of Biochemistry and Molecular Biology, University of British Columbia, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada
| | - Jacob Rozmus
- Department of Pediatrics, Child and Family Research Institute and BC Children's Hospital, University of British Columbia, 3110A-950 West 28th Av, Vancouver, V5Z 4H4, BC, Canada
| | - Jennifer Mark
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada.,Centre for Blood Research, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada
| | - Paul Pavlidis
- Centre for High Throughput Biology, University of British Columbia, 2125 East Mall, Vancouver, V6T 1Z3, BC, Canada.,Department of Psychiatry, University of British Columbia, 2125 East Mall, Vancouver, V6T 1Z3, BC, Canada
| | - Vincent Dive
- Commissariat a l'Energie Atomique (CEA) CE-Saclay, Labex LERMIT, Service d'Ingenierie Moleculaire des Proteines, Bat 152, Gif/Yvette, 91191, France
| | - Sean J Barbour
- Department of Medicine, University of British Columbia, 2775 Laurel St, Vancouver, V6T 1Z3, BC, Canada
| | - Christopher M Overall
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada. .,Centre for Blood Research, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada. .,Department of Biochemistry and Molecular Biology, University of British Columbia, 4.401-2350 Health Sciences Mall, Vancouver, V6T 1Z3, BC, Canada.
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35
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Qi G, Liu P, Gu S, Yang H, Dong H, Xue Y. Whole-exome sequencing reveals a rare interferon gamma receptor 1 mutation associated with myasthenia gravis. Neurol Sci 2018; 39:717-724. [PMID: 29441481 DOI: 10.1007/s10072-018-3275-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Accepted: 02/02/2018] [Indexed: 10/18/2022]
Abstract
Our study is aimed to explore the underlying genetic basis of myasthenia gravis. We collected a Chinese pedigree with myasthenia gravis, and whole-exome sequencing was performed on the two affected siblings and their parents. The candidate pathogenic gene was identified by bioinformatics filtering, which was further verified by Sanger sequencing. The homozygous mutation c.G40A (p.V14M) in interferon gamma receptor 1was identified. Moreover, the mutation was also detected in 3 cases of 44 sporadic myasthenia gravis patients. The p.V14M substitution in interferon gamma receptor 1 may affect the signal peptide function and the translocation on cell membrane, which could disrupt the binding of the ligand of interferon gamma and antibody production, contributing to myasthenia gravis susceptibility. We discovered that a rare variant c.G40A in interferon gamma receptor 1 potentially contributes to the myasthenia gravis pathogenesis. Further functional studies are needed to confirm the effect of the interferon gamma receptor 1 on the myasthenia gravis phenotype.
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Affiliation(s)
- Guoyan Qi
- Center of Treatment of Myasthenia Gravis Hebei Province, First Hospital of Shijiazhuang, Fangbei road No. 9, Shijiazhuang, Hebei Province, 050011, China.
| | - Peng Liu
- Center of Treatment of Myasthenia Gravis Hebei Province, First Hospital of Shijiazhuang, Fangbei road No. 9, Shijiazhuang, Hebei Province, 050011, China
| | - Shanshan Gu
- Center of Treatment of Myasthenia Gravis Hebei Province, First Hospital of Shijiazhuang, Fangbei road No. 9, Shijiazhuang, Hebei Province, 050011, China
| | - Hongxia Yang
- Center of Treatment of Myasthenia Gravis Hebei Province, First Hospital of Shijiazhuang, Fangbei road No. 9, Shijiazhuang, Hebei Province, 050011, China
| | - Huimin Dong
- Center of Treatment of Myasthenia Gravis Hebei Province, First Hospital of Shijiazhuang, Fangbei road No. 9, Shijiazhuang, Hebei Province, 050011, China
| | - Yinping Xue
- Center of Treatment of Myasthenia Gravis Hebei Province, First Hospital of Shijiazhuang, Fangbei road No. 9, Shijiazhuang, Hebei Province, 050011, China
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36
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van de Vosse E, van Dissel JT. IFN-γR1 defects: Mutation update and description of the IFNGR1 variation database. Hum Mutat 2017; 38:1286-1296. [PMID: 28744922 DOI: 10.1002/humu.23302] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 07/20/2017] [Accepted: 07/23/2017] [Indexed: 12/29/2022]
Abstract
IFN-γ signaling is essential for the innate immune defense against mycobacterial infections. IFN-γ signals through the IFN-γ receptor, which consists of a tetramer of two IFN-γR1 chains in complex with two IFN-γR2 chains, where IFN-γR1 is the ligand-binding chain of the interferon-γ receptor and IFN-γR2 is the signal-transducing chain of the IFN-γ receptor. Germline mutations in the gene IFNGR1 encoding the IFN-γR1 cause a primary immunodeficiency that mainly leads to mycobacterial infections. Here, we review the molecular basis of this immunodeficiency in the 130 individuals described to date, and report mutations in five new individuals, bringing the total number to 135 individuals from 98 kindreds. Forty unique IFNGR1 mutations have been reported and they exert either an autosomal dominant or an autosomal recessive effect. Mutations resulting in premature stopcodons represent the majority of IFNGR1 mutations (60%; 24 out of 40), followed by amino acid substitutions (28%, 11 out of 40). All known mutations, as well as 287 other variations, have been deposited in the online IFNGR1 variation database (www.LOVD.nl/IFNGR1). In this article, we review the function of IFN-γR1 and molecular genetics of human IFNGR1.
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Affiliation(s)
- Esther van de Vosse
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
| | - Jaap T van Dissel
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
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37
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Kabashima K, Nomura T. Revisiting murine models for atopic dermatitis and psoriasis with multipolar cytokine axes. Curr Opin Immunol 2017; 48:99-107. [PMID: 28915378 DOI: 10.1016/j.coi.2017.08.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 07/18/2017] [Accepted: 08/16/2017] [Indexed: 12/18/2022]
Abstract
Atopic dermatitis (AD) and psoriasis are one of the common skin diseases. Animal models are a powerful tool to analyze these diseases, which are complicated by multiple cytokine pathways. However, many discrepancies between the human diseases and murine models have been noticed. Therefore, investigators should be aware of the differences between the murine AD models and human AD when translating murine data to human skin diseases. This review highlights the differences between the inflammatory profiles between murine models and human diseases focusing on AD and psoriasis.
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Affiliation(s)
- Kenji Kabashima
- Department of Dermatology, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawahara, Sakyoku, Kyoto 606-8507, Japan; Singapore Immunology Network (SIgN) and Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), Biopolis, Singapore.
| | - Takashi Nomura
- Department of Dermatology, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawahara, Sakyoku, Kyoto 606-8507, Japan
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38
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Razaghi A, Owens L, Heimann K. Review of the recombinant human interferon gamma as an immunotherapeutic: Impacts of production platforms and glycosylation. J Biotechnol 2016; 240:48-60. [DOI: 10.1016/j.jbiotec.2016.10.022] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 10/21/2016] [Accepted: 10/24/2016] [Indexed: 12/11/2022]
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39
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Zhang R, Liu R, Xin L, Chen H, Li C, Wang L, Song L. A CgIFNLP receptor from Crassostrea gigas and its activation of the related genes in human JAK/STAT signaling pathway. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2016; 65:98-106. [PMID: 27373517 DOI: 10.1016/j.dci.2016.06.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 06/13/2016] [Accepted: 06/13/2016] [Indexed: 06/06/2023]
Abstract
Interferon is a highly pleiotropic cytokine, once binding to its receptors, can activate JAK kinases and STAT transcription factors to initiate the transcription of genes downstream from interferon-stimulated response elements. In the present study, a cytokine receptor-like 3 molecule was selected and cloned from oyster Crassostrea gigas, which contained a fibronectin type III domain (designed CgIFNR-3). The expression pattern of CgIFNR-3 mRNA was detected in all the tested tissues including mantle, gills, hepatopancreas, muscle, and hemocytes, with the highest expression level in hemocytes. After poly (I: C) stimulation, the expression level of CgIFNR-3 in hemocytes was observed to significantly increase at 3 h (13.06-fold, p < 0.01). CgIFNR-3 was indicated to interact with CgIFNLP by in vitro GST pull-down assay, and to activate the expression of transcription factors including ISRE, STAT3 and GAS, in human Janus kinase signal transducer and activator of transcription (JAK/STAT) pathway after co-transfection in HEK-293T cells in the reporter luciferase activity assay. These results suggested that CgIFNR-3 could bind to CgIFNLP as an interferon receptor and participate in the activation of JAK/STAT pathway in human, which will benefit for intensive studies of interferon signaling pathway in mollusc.
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Affiliation(s)
- Ran Zhang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; School of Marine Sciences, Ningbo University, Ningbo, Zhejiang Province 315211, China
| | - Rui Liu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Lusheng Xin
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hao Chen
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chenghua Li
- School of Marine Sciences, Ningbo University, Ningbo, Zhejiang Province 315211, China
| | - Lingling Wang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China
| | - Linsheng Song
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China.
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40
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Lin CH, Chi CY, Shih HP, Ding JY, Lo CC, Wang SY, Kuo CY, Yeh CF, Tu KH, Liu SH, Chen HK, Ho CH, Ho MW, Lee CH, Lai HC, Ku CL. Identification of a major epitope by anti-interferon-γ autoantibodies in patients with mycobacterial disease. Nat Med 2016; 22:994-1001. [PMID: 27525523 DOI: 10.1038/nm.4158] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 07/01/2016] [Indexed: 02/07/2023]
Abstract
The binding of autoantibodies (autoAbs) to interferon (IFN)-γ in people with mycobacterial diseases has become an emerging medical concern. Many patients display specific human leukocyte antigen (HLA) class II haplotypes, which suggests that a common T cell-dependent and B cell-dependent mechanism might underlie the production of specific anti-IFN-γ autoAbs. We show here that these autoAbs target a major epitope (amino acids 121-131, designated position (P)121-131) in a region crucial for IFN-γ receptor (IFN-γR) activation to impair IFN-γ-mediated activities. The amino acid sequence of this epitope is highly homologous to a stretch in the Noc2 protein of Aspergillus spp., which was cross-reactive with autoAbs from patients. Rats immunized with Aspergillus Noc2 developed antibodies that reacted with human IFN-γ. We generated an epitope-erased variant of IFN-γ (EE-IFN-γ), in which the major neutralizing epitope region was altered. The binding affinity of anti-IFN-γ autoAbs for EE-IFN-γ was reduced by about 40%, as compared to that for IFN-γ1-131. Moreover, EE-IFN-γ activated the IFN-γR downstream signaling pathway ex vivo, irrespectively of anti-IFN-γ autoAbs. In conclusion, we identified a common, crucial B cell epitope that bound to anti-IFN-γ autoAbs in patients, and we propose a molecular-mimicry model for autoAb development. In addition, treatment with EE-IFN-γ might be worth investigating in patients producing anti-IFN-γ autoAbs.
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Affiliation(s)
- Chia-Hao Lin
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
- Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Chih-Yu Chi
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
- Division of Infectious Diseases, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
| | - Han-Po Shih
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Jing-Ya Ding
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Chia-Chi Lo
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Shang-Yu Wang
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
- Division of Trauma and Emergency Surgery, Department of General Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chen-Yen Kuo
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
- Division of Infectious Diseases, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chun-Fu Yeh
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
- Division of Infectious Diseases, Department of Internal Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Kun-Hua Tu
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
- Chang Gung University College of Medicine, Taoyuan, Taiwan
- Kidney Research Center, Department of Nephrology, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Shou-Hsuan Liu
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
- Chang Gung University College of Medicine, Taoyuan, Taiwan
- Kidney Research Center, Department of Nephrology, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Hung-Kai Chen
- Laboratory of Translational Medicine, Development Center for Biotechnology, New Taipei City, Taiwan
| | - Chen-Hsuan Ho
- Laboratory of Translational Medicine, Development Center for Biotechnology, New Taipei City, Taiwan
| | - Mao-Wang Ho
- Division of Infectious Diseases, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Chen-Hsiang Lee
- Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Hsin-Chin Lai
- Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
- Chang Gung Immunology Consortium, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan
| | - Cheng-Lung Ku
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
- Division of Infectious Diseases, Department of Internal Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- Chang Gung Immunology Consortium, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
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41
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Zuber B, Rudström K, Ehrnfelt C, Ahlborg N. Epitope Mapping of Neutralizing Monoclonal Antibodies to Human Interferon-γ Using Human-Bovine Interferon-γ Chimeras. J Interferon Cytokine Res 2016; 36:542-51. [PMID: 27336613 PMCID: PMC5011633 DOI: 10.1089/jir.2016.0017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 04/19/2016] [Indexed: 11/17/2022] Open
Abstract
Our aim was to identify conformational epitopes, recognized by monoclonal antibodies (mAbs) made against human (h) interferon (IFN)-γ. Based on the mAbs' (n = 12) ability to simultaneously bind hIFN-γ in ELISA, 2 epitope clusters with 5 mAbs in each were defined; 2 mAbs recognized unique epitopes. Utilizing the mAbs' lack of reactivity with bovine (b) IFN-γ, epitopes were identified using 7 h/bIFN-γ chimeras where the helical regions (A-F) or the C terminus were substituted with bIFN-γ residues. Chimeras had a N-terminal peptide tag enabling the analysis of mAb recognition of chimeras in ELISA. The 2 mAb clusters mapped to region A and E, respectively; the epitopes of several mAbs also involved additional regions. MAbs in cluster A neutralized, to various degrees, IFN-γ-mediated activation of human cells, in line with the involvement of region A in the IFN-γ receptor interaction. MAbs mapping to region E displayed a stronger neutralizing capacity although this region has not been directly implicated in the receptor interaction. The results corroborate earlier studies and provide a detailed picture of the link between the epitope specificity and neutralizing capacity of mAbs. They further demonstrate the general use of peptide-tagged chimeric proteins as a powerful and straightforward method for efficient mapping of conformational epitopes.
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Affiliation(s)
| | | | | | - Niklas Ahlborg
- Mabtech, Nacka Strand, Sweden
- Department of Immunology, Stockholm University, Stockholm, Sweden
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42
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Mikulecký P, Zahradník J, Kolenko P, Černý J, Charnavets T, Kolářová L, Nečasová I, Pham PN, Schneider B. Crystal structure of human interferon-γ receptor 2 reveals the structural basis for receptor specificity. Acta Crystallogr D Struct Biol 2016; 72:1017-25. [PMID: 27599734 PMCID: PMC5013595 DOI: 10.1107/s2059798316012237] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 07/27/2016] [Indexed: 11/10/2022] Open
Abstract
Interferon-γ receptor 2 is a cell-surface receptor that is required for interferon-γ signalling and therefore plays a critical immunoregulatory role in innate and adaptive immunity against viral and also bacterial and protozoal infections. A crystal structure of the extracellular part of human interferon-γ receptor 2 (IFNγR2) was solved by molecular replacement at 1.8 Å resolution. Similar to other class 2 receptors, IFNγR2 has two fibronectin type III domains. The characteristic structural features of IFNγR2 are concentrated in its N-terminal domain: an extensive π-cation motif of stacked residues KWRWRH, a NAG-W-NAG sandwich (where NAG stands for N-acetyl-D-glucosamine) and finally a helix formed by residues 78-85, which is unique among class 2 receptors. Mass spectrometry and mutational analyses showed the importance of N-linked glycosylation to the stability of the protein and confirmed the presence of two disulfide bonds. Structure-based bioinformatic analysis revealed independent evolutionary behaviour of both receptor domains and, together with multiple sequence alignment, identified putative binding sites for interferon-γ and receptor 1, the ligands of IFNγR2.
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Affiliation(s)
- Pavel Mikulecký
- Institute of Biotechnology CAS, BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic
| | - Jirí Zahradník
- Institute of Biotechnology CAS, BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic
| | - Petr Kolenko
- Institute of Biotechnology CAS, BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic
| | - Jiří Černý
- Institute of Biotechnology CAS, BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic
| | - Tatsiana Charnavets
- Institute of Biotechnology CAS, BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic
| | - Lucie Kolářová
- Institute of Biotechnology CAS, BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic
| | - Iva Nečasová
- Institute of Biotechnology CAS, BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic
| | - Phuong Ngoc Pham
- Institute of Biotechnology CAS, BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic
| | - Bohdan Schneider
- Institute of Biotechnology CAS, BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic
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43
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Aurand TC, March JC. Development of a synthetic receptor protein for sensing inflammatory mediators interferon‐γ and tumor necrosis factor‐α. Biotechnol Bioeng 2016; 113:492-500. [DOI: 10.1002/bit.25832] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 09/04/2015] [Accepted: 09/09/2015] [Indexed: 11/05/2022]
Affiliation(s)
- T. Christopher Aurand
- Department of Biological and Environmental EngineeringCornell UniversityIthaca14853New York
| | - John C. March
- Department of Biological and Environmental EngineeringCornell UniversityIthaca14853New York
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44
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Sarin H. Pressuromodulation at the cell membrane as the basis for small molecule hormone and peptide regulation of cellular and nuclear function. J Transl Med 2015; 13:372. [PMID: 26610602 PMCID: PMC4660824 DOI: 10.1186/s12967-015-0707-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 10/21/2015] [Indexed: 12/15/2022] Open
Abstract
Building on recent knowledge that the specificity of the biological interactions of small molecule hydrophiles and lipophiles across microvascular and epithelial barriers, and with cells, can be predicted on the basis of their conserved biophysical properties, and the knowledge that biological peptides are cell membrane impermeant, it has been further discussed herein that cellular, and thus, nuclear function, are primarily regulated by small molecule hormone and peptide/factor interactions at the cell membrane (CM) receptors. The means of regulating cellular, and thus, nuclear function, are the various forms of CM Pressuromodulation that exist, which include Direct CM Receptor-Mediated Stabilizing Pressuromodulation, sub-classified as Direct CM Receptor-Mediated Stabilizing Shift Pressuromodulation (Single, Dual or Tri) or Direct CM Receptor-Mediated Stabilizing Shift Pressuromodulation (Single, Dual or Tri) cum External Cationomodulation (≥3+ → 1+); which are with respect to acute CM receptor-stabilizing effects of small biomolecule hormones, growth factors or cytokines, and also include Indirect CM- or CM Receptor-Mediated Pressuromodulation, sub-classified as Indirect 1ary CM-Mediated Shift Pressuromodulation (Perturbomodulation), Indirect 2ary CM Receptor-Mediated Shift Pressuromodulation (Tri or Quad Receptor Internal Pseudo-Cationomodulation: SS 1+), Indirect 3ary CM Receptor-Mediated Shift Pressuromodulation (Single or Dual Receptor Endocytic External Cationomodulation: 2+) or Indirect (Pseudo) 3ary CM Receptor-Mediated Shift Pressuromodulation (Receptor Endocytic Hydroxylocarbonyloetheroylomodulation: 0), which are with respect to sub-acute CM receptor-stabilizing effects of small biomolecules, growth factors or cytokines. As a generalization, all forms of CM pressuromodulation decrease CM and nuclear membrane (NM) compliance (whole cell compliance), due to pressuromodulation of the intracellular microtubule network and increases the exocytosis of pre-synthesized vesicular endogolgi peptides and small molecules as well as nuclear-to-rough endoplasmic reticulum membrane proteins to the CM, with the potential to simultaneously increase the NM-associated chromatin DNA transcription of higher molecular weight protein forms, secretory and CM-destined, mitochondrial and nuclear, including the highest molecular weight nuclear proteins, Ki67 (359 kDa) and Separase (230 kDa), with the latter leading to mitogenesis and cell division; while, in the case of growth factors or cytokines with external cationomodulation capability, CM Receptor External Cationomodulation of CM receptors (≥3+ → 1+) results in cationic extracellular interaction (≥3+) with extracellular matrix heparan sulfates (≥3+ → 1+) concomitant with lamellopodesis and cell migration. It can be surmised that the modulation of cellular, and nuclear, function is mostly a reactive process, governed, primarily, by small molecule hormone and peptide interactions at the cell membrane, with CM receptors and the CM itself. These insights taken together, provide valuable translationally applicable knowledge.
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Affiliation(s)
- Hemant Sarin
- Freelance Investigator in Translational Science and Medicine, Charleston, WV, USA.
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45
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Swain B, Basu M, Lenka SS, Das S, Jayasankar P, Samanta M. Characterization and Inductive Expression Analysis of Interferon Gamma-Related Gene in the Indian Major Carp, Rohu (Labeo rohita). DNA Cell Biol 2015; 34:367-78. [PMID: 25756860 DOI: 10.1089/dna.2014.2656] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Interferon gamma (IFN-γ) is one of the key cytokines that plays a major role against viral and intracellular bacterial infection. In addition to the IFN-γ gene, teleost fish possess a second copy known as IFN-γ-related (IFN-γrel) gene. This report describes structural and functional properties of IFN-γrel gene in the Indian major carp, rohu (Labeo rohita), a commercially important freshwater fish species in the Indian subcontinent. The rohu IFN-γrel gene consisted of four exons with three intervening introns and phylogenetically closely related to grass carp. The full-length IFN-γrel cDNA comprised 927 bp nucleotides with a single open reading frame of 504 bp, encoding 167 amino acids (aa) polypeptide with a signal peptide of 24 aa. The mature rohu IFN-γrel protein was 143 aa with a predicted molecular weight of 16.85 kDa. Basal expression analysis of IFN-γrel showed its wide range of expression in all examined tissues: The highest was in the skin and the lowest was in the liver. In response to LPS, poly I:C, iE-DAP, muramyl dipeptide stimulations, and bacterial infections, IFN-γrel gene expression was significantly (p<0.05) induced in treated fish tissues as compared with their control. The IFN-γrel was expressed as recombinant protein (rIFN-γrel) and confirmed through western blot. Stimulation of peripheral blood leukocytes with rIFN-γrel protein resulted in the activation of IFN-γ receptor and marked induction of inducible nitric oxide synthase gene expression. These results together may suggest the important role of IFN-γrel as an antimicrobial cytokine in fish.
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Affiliation(s)
- Banikalyan Swain
- 1 Fish Health Management Division, Central Institute of Freshwater Aquaculture (CIFA) , Bhubaneswar, Odisha, India
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46
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Abstract
Since determination of the myoglobin structure in 1957, X-ray crystallography, as the anchoring tool of structural biology, has played an instrumental role in deciphering the secrets of life. Knowledge gained through X-ray crystallography has fundamentally advanced our views on cellular processes and greatly facilitated development of modern medicine. In this brief narrative, I describe my personal understanding of the evolution of structural biology through X-ray crystallography-using as examples mechanistic understanding of protein kinases and integral membrane proteins-and comment on the impact of technological development and outlook of X-ray crystallography.
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Affiliation(s)
- Yigong Shi
- Center for Structural Biology, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China.
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47
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Moraga I, Wernig G, Wilmes S, Gryshkova V, Richter CP, Hong WJ, Sinha R, Guo F, Fabionar H, Wehrman TS, Krutzik P, Demharter S, Plo I, Weissman IL, Minary P, Majeti R, Constantinescu SN, Piehler J, Garcia KC. Tuning cytokine receptor signaling by re-orienting dimer geometry with surrogate ligands. Cell 2015; 160:1196-208. [PMID: 25728669 PMCID: PMC4766813 DOI: 10.1016/j.cell.2015.02.011] [Citation(s) in RCA: 123] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 01/22/2015] [Accepted: 02/03/2015] [Indexed: 01/07/2023]
Abstract
Most cell-surface receptors for cytokines and growth factors signal as dimers, but it is unclear whether remodeling receptor dimer topology is a viable strategy to "tune" signaling output. We utilized diabodies (DA) as surrogate ligands in a prototypical dimeric receptor-ligand system, the cytokine Erythropoietin (EPO) and its receptor (EpoR), to dimerize EpoR ectodomains in non-native architectures. Diabody-induced signaling amplitudes varied from full to minimal agonism, and structures of these DA/EpoR complexes differed in EpoR dimer orientation and proximity. Diabodies also elicited biased or differential activation of signaling pathways and gene expression profiles compared to EPO. Non-signaling diabodies inhibited proliferation of erythroid precursors from patients with a myeloproliferative neoplasm due to a constitutively active JAK2V617F mutation. Thus, intracellular oncogenic mutations causing ligand-independent receptor activation can be counteracted by extracellular ligands that re-orient receptors into inactive dimer topologies. This approach has broad applications for tuning signaling output for many dimeric receptor systems.
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Affiliation(s)
- Ignacio Moraga
- Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, California, 94305-5345, USA,Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, California, 94305-5345, USA
| | - Gerlinde Wernig
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California, 94305-5345, USA,Department of Pathology, Division of Hematopathology, Stanford University School of Medicine, Stanford, California, 94305-5345, USA
| | - Stephan Wilmes
- Division of Biophysics, Department of Biology, University of Osnabrück, 49076, Germany
| | - Vitalina Gryshkova
- Ludwig Institute For Cancer Research and de Duve Institute, Université catholique de Louvain, B-1200 Brussels, Belgium
| | | | - Wan-Jen Hong
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California, 94305-5345, USA,Department of Internal Medicine, Division of Hematology, Stanford University School of Medicine, Stanford, California, 94305-5345, USA
| | - Rahul Sinha
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California, 94305-5345, USA
| | - Feng Guo
- Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, California, 94305-5345, USA,Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, California, 94305-5345, USA
| | - Hyna Fabionar
- DiscoveRx, 42501 Albrae St, Fremont, California, 94538, USA
| | - Tom S. Wehrman
- Primity Bio, 3350 Scott blvd ste 6101, Santa Clara, CA 95054
| | - Peter Krutzik
- Primity Bio, 3350 Scott blvd ste 6101, Santa Clara, CA 95054
| | - Samuel Demharter
- Department of Computer Science Wolfson Building, University of Oxford, Oxford OX1 3QD, United Kingdom
| | - Isabelle Plo
- Institut Gustave Roussy, INSERM U1009, 94805, Villejuif, France
| | - Irving L. Weissman
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California, 94305-5345, USA
| | - Peter Minary
- Department of Computer Science Wolfson Building, University of Oxford, Oxford OX1 3QD, United Kingdom
| | - Ravindra Majeti
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California, 94305-5345, USA,Department of Internal Medicine, Division of Hematology, Stanford University School of Medicine, Stanford, California, 94305-5345, USA
| | - Stefan N. Constantinescu
- Ludwig Institute For Cancer Research and de Duve Institute, Université catholique de Louvain, B-1200 Brussels, Belgium
| | - Jacob Piehler
- Division of Biophysics, Department of Biology, University of Osnabrück, 49076, Germany
| | - K. Christopher Garcia
- Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, California, 94305-5345, USA,Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, California, 94305-5345, USA,Correspondence to:
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48
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Przybylski C, Mokaddem M, Prull-Janssen M, Saesen E, Lortat-Jacob H, Gonnet F, Varenne A, Daniel R. On-line capillary isoelectric focusing hyphenated to native electrospray ionization mass spectrometry for the characterization of interferon-γ and variants. Analyst 2015; 140:543-50. [DOI: 10.1039/c4an01305k] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The on-line hyphenation of Capillary IsoElectric Focusing (CIEF) with ElectroSpray Ionization Mass Spectrometry (ESI/MS) has been carried out in a non-denaturing detection mode at the CIEF-MS interface.
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Affiliation(s)
- Cédric Przybylski
- CNRS
- Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement (UMR 8587)
- Evry
- France
- Université Evry-Val-D'Essonne
| | - Meriem Mokaddem
- Chimie ParisTech
- Ecole Nationale Supérieure de Chimie
- Unité de Technologies Chimiques et Biologiques pour la Santé
- Paris
- France
| | - Mehdi Prull-Janssen
- CNRS
- Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement (UMR 8587)
- Evry
- France
- Université Evry-Val-D'Essonne
| | - Els Saesen
- Université Grenoble Alpes
- Institut de Biologie Structurale (IBS)
- Grenoble
- France
- CNRS
| | - Hugues Lortat-Jacob
- Université Grenoble Alpes
- Institut de Biologie Structurale (IBS)
- Grenoble
- France
- CNRS
| | - Florence Gonnet
- CNRS
- Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement (UMR 8587)
- Evry
- France
- Université Evry-Val-D'Essonne
| | - Anne Varenne
- Chimie ParisTech
- Ecole Nationale Supérieure de Chimie
- Unité de Technologies Chimiques et Biologiques pour la Santé
- Paris
- France
| | - Régis Daniel
- CNRS
- Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement (UMR 8587)
- Evry
- France
- Université Evry-Val-D'Essonne
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49
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Interferon induction by RNA viruses and antagonism by viral pathogens. Viruses 2014; 6:4999-5027. [PMID: 25514371 PMCID: PMC4276940 DOI: 10.3390/v6124999] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 11/04/2014] [Accepted: 12/04/2014] [Indexed: 12/22/2022] Open
Abstract
Interferons are a group of small proteins that play key roles in host antiviral innate immunity. Their induction mainly relies on host pattern recognition receptors (PRR). Host PRR for RNA viruses include Toll-like receptors (TLR) and retinoic acid-inducible gene I (RIG-I) like receptors (RLR). Activation of both TLR and RLR pathways can eventually lead to the secretion of type I IFNs, which can modulate both innate and adaptive immune responses against viral pathogens. Because of the important roles of interferons, viruses have evolved multiple strategies to evade host TLR and RLR mediated signaling. This review focuses on the mechanisms of interferon induction and antagonism of the antiviral strategy by RNA viruses.
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50
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Spangler JB, Moraga I, Mendoza JL, Garcia KC. Insights into cytokine-receptor interactions from cytokine engineering. Annu Rev Immunol 2014; 33:139-67. [PMID: 25493332 DOI: 10.1146/annurev-immunol-032713-120211] [Citation(s) in RCA: 180] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cytokines exert a vast array of immunoregulatory actions critical to human biology and disease. However, the desired immunotherapeutic effects of native cytokines are often mitigated by toxicity or lack of efficacy, either of which results from cytokine receptor pleiotropy and/or undesired activation of off-target cells. As our understanding of the structural principles of cytokine-receptor interactions has advanced, mechanism-based manipulation of cytokine signaling through protein engineering has become an increasingly feasible and powerful approach. Modified cytokines, both agonists and antagonists, have been engineered with narrowed target cell specificities, and they have also yielded important mechanistic insights into cytokine biology and signaling. Here we review the theory and practice of cytokine engineering and rationalize the mechanisms of several engineered cytokines in the context of structure. We discuss specific examples of how structure-based cytokine engineering has opened new opportunities for cytokines as drugs, with a focus on the immunotherapeutic cytokines interferon, interleukin-2, and interleukin-4.
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Affiliation(s)
- Jamie B Spangler
- Howard Hughes Medical Institute, Department of Molecular and Cellular Physiology, Department of Structural Biology, Stanford University School of Medicine, Stanford, California 94305; , , ,
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