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Li L, Qin S, Tan H, Zhou J. LGALS3BP is a novel and potential biomarker in clear cell renal cell carcinoma. Aging (Albany NY) 2024; 16:4033-4051. [PMID: 38393692 PMCID: PMC10929836 DOI: 10.18632/aging.205578] [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: 09/18/2023] [Accepted: 01/17/2024] [Indexed: 02/25/2024]
Abstract
Clear cell renal cell carcinoma (ccRCC) is the most common solid renal tumor. Therefore, it is necessary to explore the related tumor markers. LGALS3BP (galectin 3 binding protein) is a multifunctional glycoprotein implicated in immunity and cancer. Some studies have shown that LGALS3BP promotes the occurrence and development of tumors. However, their exact role in renal tumorigenesis remains unclear. Our study used a webserver to explore the mRNA expression and clinical features of LGALS3BP in ccRCC. Survival analysis showed that patients with high LGALS3BP expression had significantly worse OS and DFS than those with low LGALS3BP expression. LGALS3BP expression is significantly related to B cells, CD4+ T cells, macrophages, neutrophils, and dendritic cells. Furthermore, we determined that LGALS3BP is significantly associated with angiogenesis, stemness and proliferation in renal cancer. Three phenotypes may be associated with a poor prognosis. Genes related to proliferation, angiogenesis and stemness were derived from a Venn diagram of FGF2. FGF2 is negatively correlated with proliferation and positively correlated with angiogenesis. Finally, we screened for drugs that may have potential therapeutic value for ccRCC. The PCR results showed that the expression of LGALS3BP in the normal cell line was lower than that in the tumor cell lines. After LGALS3BP knockdown, the proliferation of 769-P and 786-O cells decreased. The present findings show that LGALS3BP is critical for ccRCC cell proliferation and may be a potential target and biomarker for ccRCC.
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Affiliation(s)
- Lei Li
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People’s Republic of China
| | - Sen Qin
- Department of Orthopedics, The First People’s Hospital of Jingzhou, Jingzhou, Hubei, People’s Republic of China
| | - Hongwei Tan
- Department of Organ Transplantation, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong, People’s Republic of China
| | - Jiexue Zhou
- Department of Organ Transplantation, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong, People’s Republic of China
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2
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Bosquillon de Jarcy L, Akbil B, Mhlekude B, Leyens J, Postmus D, Harnisch G, Jansen J, Schmidt ML, Aigner A, Pott F, Chua RL, Krist L, Gentile R, Mühlemann B, Jones TC, Niemeyer D, Fricke J, Keil T, Pischon T, Janke J, Conrad C, Iacobelli S, Drosten C, Corman VM, Ralser M, Eils R, Kurth F, Sander L, Goffinet C. 90K/LGALS3BP expression is upregulated in COVID-19 but may not restrict SARS-CoV-2 infection. Clin Exp Med 2023; 23:3689-3700. [PMID: 37162650 PMCID: PMC10170455 DOI: 10.1007/s10238-023-01077-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 04/12/2023] [Indexed: 05/11/2023]
Abstract
Glycoprotein 90K, encoded by the interferon-stimulated gene LGALS3BP, displays broad antiviral activity. It reduces HIV-1 infectivity by interfering with Env maturation and virion incorporation, and increases survival of Influenza A virus-infected mice via antiviral innate immune signaling. Its antiviral potential in SARS-CoV-2 infection remains largely unknown. Here, we analyzed the expression of 90K/LGALS3BP in 44 hospitalized COVID-19 patients at multiple levels. We quantified 90K protein concentrations in serum and PBMCs as well as LGALS3BP mRNA levels. Complementary, we analyzed two single cell RNA-sequencing datasets for expression of LGALS3BP in respiratory specimens and PBMCs from COVID-19 patients. Finally, we analyzed the potential of 90K to interfere with SARS-CoV-2 infection of HEK293T/ACE2, Calu-3 and Caco-2 cells using authentic virus. 90K protein serum concentrations were significantly elevated in COVID-19 patients compared to uninfected sex- and age-matched controls. Furthermore, PBMC-associated concentrations of 90K protein were overall reduced by SARS-CoV-2 infection in vivo, suggesting enhanced secretion into the extracellular space. Mining of published PBMC scRNA-seq datasets uncovered monocyte-specific induction of LGALS3BP mRNA expression in COVID-19 patients. In functional assays, neither 90K overexpression in susceptible cell lines nor exogenous addition of purified 90K consistently inhibited SARS-CoV-2 infection. Our data suggests that 90K/LGALS3BP contributes to the global type I IFN response during SARS-CoV-2 infection in vivo without displaying detectable antiviral properties in vitro.
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Affiliation(s)
- Laure Bosquillon de Jarcy
- Institute of Virology, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 , Berlin, Germany
- Speciality Network: Infectious Diseases and Respiratory Medicine, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Bengisu Akbil
- Institute of Virology, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 , Berlin, Germany
| | - Baxolele Mhlekude
- Institute of Virology, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 , Berlin, Germany
| | - Johanna Leyens
- Institute of Virology, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Dylan Postmus
- Institute of Virology, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 , Berlin, Germany
| | - Greta Harnisch
- Institute of Virology, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Jenny Jansen
- Institute of Virology, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Marie L Schmidt
- Institute of Virology, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Annette Aigner
- Institute of Biometry and Clinical Epidemiology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Fabian Pott
- Institute of Virology, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 , Berlin, Germany
| | - Robert Lorenz Chua
- Center for Digital Health, Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Berlin, Germany, Charitéplatz 1, 10117, Berlin, Germany
| | - Lilian Krist
- Institute of Social Medicine, Epidemiology and Health Economics, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | | | - Barbara Mühlemann
- Institute of Virology, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Terence C Jones
- Institute of Virology, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
- Department of Zoology, Centre for Pathogen Evolution, University of Cambridge, Downing St., Cambridge, CB2 3EJ, UK
| | - Daniela Niemeyer
- Institute of Virology, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
- German Center for Infection Research, Associated Partner Charité, Berlin, Germany
| | - Julia Fricke
- Institute of Social Medicine, Epidemiology and Health Economics, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Thomas Keil
- Institute of Social Medicine, Epidemiology and Health Economics, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
- Institute of Clinical Epidemiology and Biometry, University of Würzburg, Josef-Schneiderstr. 2, 97080, Würzburg, Germany
- State Institute of Health, Bavarian Health and Food Safety Authority, Eggenreuther Weg 43, 91058, Erlangen, Germany
| | - Tobias Pischon
- Molecular Epidemiology Research Group, Max-Delbrueck-Center for Molecular Medicine in the Helmholtz Association (MDC), 13125, Berlin, Germany
- Biobank Technology Platform, Max-Delbrueck-Center for Molecular Medicine in the Helmholtz Association (MDC), 13125, Berlin, Germany
- Core Facility Biobank, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, 10178, Berlin, Germany
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Zu Berlin, 10117, Berlin, Germany
| | - Jürgen Janke
- Biobank Technology Platform, Max-Delbrueck-Center for Molecular Medicine in the Helmholtz Association (MDC), 13125, Berlin, Germany
| | - Christian Conrad
- Center for Digital Health, Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Berlin, Germany, Charitéplatz 1, 10117, Berlin, Germany
| | | | - Christian Drosten
- Institute of Virology, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
- German Center for Infection Research, Associated Partner Charité, Berlin, Germany
| | - Victor M Corman
- Institute of Virology, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
- German Center for Infection Research, Associated Partner Charité, Berlin, Germany
| | - Markus Ralser
- Department of Biochemistry, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
- Molecular Biology of Metabolism Laboratory, The Francis Crick Institute, London, NW11AT, UK
| | - Roland Eils
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 , Berlin, Germany
- Center for Digital Health, Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Berlin, Germany, Charitéplatz 1, 10117, Berlin, Germany
- German Center for Lung Research (DZL), 35392, Gießen, Germany
- Health Data Science Unit, Heidelberg University Hospital and BioQuant, 69120, Heidelberg, Germany
| | - Florian Kurth
- Speciality Network: Infectious Diseases and Respiratory Medicine, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
- Department of Tropical Medicine, Bernhard Nocht Institute for Tropical Medicine, 20359, Hamburg, Germany
- Department of Medicine, University Medical Center, Hamburg-Eppendorf, 20251, Hamburg, Germany
| | - Leif Sander
- Speciality Network: Infectious Diseases and Respiratory Medicine, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
- German Center for Lung Research (DZL), 35392, Gießen, Germany
| | - Christine Goffinet
- Institute of Virology, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany.
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 , Berlin, Germany.
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3
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Capone E, Iacobelli S, Sala G. Role of galectin 3 binding protein in cancer progression: a potential novel therapeutic target. J Transl Med 2021; 19:405. [PMID: 34565385 PMCID: PMC8474792 DOI: 10.1186/s12967-021-03085-w] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 09/16/2021] [Indexed: 12/19/2022] Open
Abstract
The lectin galactoside-binding soluble 3 binding protein (LGALS3BP) is a secreted, hyperglycosylated protein expressed by the majority of human cells. It was first identified as cancer and metastasis associated protein, while its role in innate immune response upon viral infection remains still to be clarified. Since its discovery dated in early 90 s, a large body of literature has been accumulating highlighting both a prognostic and functional role for LGALS3BP in cancer. Moreover, data from our group and other have strongly suggested that this protein is enriched in cancer-associated extracellular vesicles and may be considered a promising candidate for a targeted therapy in LGALS3BP positive cancers. Here, we extensively reviewed the literature relative to LGALS3BP role in cancer and its potential value as a therapeutic target.
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Affiliation(s)
- Emily Capone
- Department of Innovative Technologies in Medicine and Dentistry, University of Chieti-Pescara, 66100, Chieti, Italy.,Center for Advanced Studies and Technology (CAST), Via Polacchi 11, 66100, Chieti, Italy
| | | | - Gianluca Sala
- Department of Innovative Technologies in Medicine and Dentistry, University of Chieti-Pescara, 66100, Chieti, Italy. .,Center for Advanced Studies and Technology (CAST), Via Polacchi 11, 66100, Chieti, Italy.
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4
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Tgf-β1 transcriptionally promotes 90K expression: possible implications for cancer progression. Cell Death Dis 2021; 7:86. [PMID: 33888686 PMCID: PMC8062489 DOI: 10.1038/s41420-021-00469-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 02/21/2021] [Accepted: 03/18/2021] [Indexed: 02/02/2023]
Abstract
The 90K protein, also known as Mac-2 BP or LGALS3BP, can activate the immune response in part by increasing major histocompatibility (MHC) class I levels. In studies on a non-immune cell model, the rat FRTL-5 cell line, we observed that transforming growth factor (TGF)-β1, like γ-interferon (IFN), increased 90K levels, despite its immunosuppressive functions and the ability to decrease MHC class I. To explain this paradoxical result, we investigated the mechanisms involved in the TGF-β1 regulation of 90K expression with the aim to demonstrate that TGF-β1 utilizes different molecular pathways to regulate the two genes. We found that TGF-β1 was able to increase the binding of Upstream Stimulatory Factors, USF1 and USF2, to an E-box element, CANNTG, at -1926 to -1921 bp, upstream of the interferon response element (IRE) in the 90K promoter. Thyrotropin (TSH) suppressed constitutive and γ-IFN-induced 90K expression by decreasing USF binding to the E-box. TGF-β1 was able to overcome TSH suppression at the transcriptional level by increasing USF binding to the E-box. We suggest that the ability of TGF-β1 to increase 90K did not result in an increase in MHC class I because of a separate suppressive action of TGF-β1 directly on the MHC class I gene. We propose that the increased levels of 90K may play a role, rather than in immune response, in the context of the TGF-β1-induced changing of the cellular microenvironment that predisposes to cell motility and cancer progression. Consistently, analyzing the publicly available cancer patient data sets cBioPortal, we found that 90K expression directly correlated with TGF-β1 and USFs and that high levels of 90K were significantly associated with increased mortality in patients affected by different types of cancer.
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5
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Beitari S, Wang Y, Liu SL, Liang C. HIV-1 Envelope Glycoprotein at the Interface of Host Restriction and Virus Evasion. Viruses 2019; 11:v11040311. [PMID: 30935048 PMCID: PMC6521621 DOI: 10.3390/v11040311] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 03/25/2019] [Accepted: 03/27/2019] [Indexed: 12/15/2022] Open
Abstract
Without viral envelope proteins, viruses cannot enter cells to start infection. As the major viral proteins present on the surface of virions, viral envelope proteins are a prominent target of the host immune system in preventing and ultimately eliminating viral infection. In addition to the well-appreciated adaptive immunity that produces envelope protein-specific antibodies and T cell responses, recent studies have begun to unveil a rich layer of host innate immune mechanisms restricting viral entry. This review focuses on the exciting progress that has been made in this new direction of research, by discussing various known examples of host restriction of viral entry, and diverse viral countering strategies, in particular, the emerging role of viral envelope proteins in evading host innate immune suppression. We will also highlight the effective cooperation between innate and adaptive immunity to achieve the synergistic control of viral infection by targeting viral envelope protein and checking viral escape. Given that many of the related findings were made with HIV-1, we will use HIV-1 as the model virus to illustrate the basic principles and molecular mechanisms on host restriction targeting HIV-1 envelope protein.
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Affiliation(s)
- Saina Beitari
- Department of Microbiology & Immunology, McGill University, Montreal, QC H3A 2B4, Canada.
- Lady Davis Institute, Jewish General Hospital, Montreal, QC H3T 1E2, Canada.
| | - Yimeng Wang
- Lady Davis Institute, Jewish General Hospital, Montreal, QC H3T 1E2, Canada.
- Department of Medicine, McGill University, Montreal, QC H4A 3J1, Canada.
| | - Shan-Lu Liu
- Center for Retrovirus Research, Department of Veterinary Biosciences, Department of Microbial Infection and Immunity, The Ohio State University, Columbus, Ohio 43210, USA.
| | - Chen Liang
- Department of Microbiology & Immunology, McGill University, Montreal, QC H3A 2B4, Canada.
- Lady Davis Institute, Jewish General Hospital, Montreal, QC H3T 1E2, Canada.
- Department of Medicine, McGill University, Montreal, QC H4A 3J1, Canada.
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6
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Loimaranta V, Hepojoki J, Laaksoaho O, Pulliainen AT. Galectin-3-binding protein: A multitask glycoprotein with innate immunity functions in viral and bacterial infections. J Leukoc Biol 2018; 104:777-786. [PMID: 29882603 DOI: 10.1002/jlb.3vmr0118-036r] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 04/17/2018] [Accepted: 05/03/2018] [Indexed: 12/17/2022] Open
Abstract
Galectin-3-binding protein (Gal-3BP) is a ubiquitous and multifunctional secreted glycoprotein originally identified and mainly studied in the context of neoplastic transformation and cancer progression. However, Gal-3BP expression is induced in viral infection and by a multitude of molecules that either mimic or are characteristic for an ongoing inflammation and microbial infection, such as IFN-α, IFN-β, IFN-γ, TNF-α, poly(I:C), dsRNA, and dsDNA. Furthermore, Gal-3BP belongs to the scavenger receptor cysteine-rich (SRCR) domain-containing protein family, by virtue of its N-terminal SRCR domain. The SRCR domain is found in soluble or membrane-associated innate immunity-related proteins and is implicated in self-nonself discrimination. This review summarizes the current knowledge of structural features of Gal-3BP and its proposed intracellular and extracellular innate immunity functions with special emphasis on viral and bacterial infections.
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Affiliation(s)
- Vuokko Loimaranta
- Institute of Dentistry, University of Turku, Turku, Finland.,Institute of Biomedicine, Research Center for Cancer, Infections and Immunity, University of Turku, Turku, Finland
| | - Jussi Hepojoki
- Medicum, Department of Virology, University of Helsinki, Helsinki, Finland.,Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland
| | - Olli Laaksoaho
- Institute of Biomedicine, Research Center for Cancer, Infections and Immunity, University of Turku, Turku, Finland
| | - Arto T Pulliainen
- Institute of Biomedicine, Research Center for Cancer, Infections and Immunity, University of Turku, Turku, Finland
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7
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Goffinet C. Cellular Antiviral Factors that Target Particle Infectivity of HIV-1. Curr HIV Res 2016; 14:211-6. [PMID: 26674651 PMCID: PMC5403965 DOI: 10.2174/1570162x14666151216145521] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 10/30/2015] [Accepted: 12/14/2015] [Indexed: 11/22/2022]
Abstract
Background: In the past decade, the identification and characterization of antiviral genes with the ability to interfere with virus replication has established cell-intrinsic innate immunity as a third line of antiviral defense in addition to adaptive and classical innate immunity. Understanding how cellular factors have evolved to inhibit HIV-1 reveals particularly vulnerable points of the viral replication cycle. Many, but not all, antiviral proteins share type I interferon-upregulated expression and sensitivity to viral counteraction or evasion measures. Whereas well-established restriction factors interfere with early post-entry steps and release of HIV-1, recent research has revealed a diverse set of proteins that reduce the infectious quality of released particles using individual, to date poorly understood modes of action. These include induction of paucity of mature glycoproteins in nascent virions or self-incorporation into the virus particle, resulting in poor infectiousness of the virion and impaired spread of the infection. Conclusion: A better understanding of these newly discovered antiviral factors may open new avenues towards the design of drugs that repress the spread of viruses whose genomes have already integrated.
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Affiliation(s)
- Christine Goffinet
- Institute of Experimental Virology, TWINCORE Centre for Experimental and Clinical Infection Research, a joint venture between the Hannover Medical School (MHH) and the Helmholtz Centre for Infection Research (HZI), Hannover, Germany.
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8
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Jeoung M, Jang ER, Liu J, Wang C, Rouchka EC, Li X, Galperin E. Shoc2-tranduced ERK1/2 motility signals--Novel insights from functional genomics. Cell Signal 2016; 28:448-459. [PMID: 26876614 DOI: 10.1016/j.cellsig.2016.02.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 02/05/2016] [Accepted: 02/08/2016] [Indexed: 12/19/2022]
Abstract
The extracellular signal-regulated kinase 1 and 2 (ERK1/2) pathway plays a central role in defining various cellular fates. Scaffold proteins modulating ERK1/2 activity control growth factor signals transduced by the pathway. Here, we analyzed signals transduced by Shoc2, a critical positive modulator of ERK1/2 activity. We found that loss of Shoc2 results in impaired cell motility and delays cell attachment. As ERKs control cellular fates by stimulating transcriptional response, we hypothesized that the mechanisms underlying changes in cell adhesion could be revealed by assessing the changes in transcription of Shoc2-depleted cells. Using quantitative RNA-seq analysis, we identified 853 differentially expressed transcripts. Characterization of the differentially expressed genes showed that Shoc2 regulates the pathway at several levels, including expression of genes controlling cell motility, adhesion, crosstalk with the transforming growth factor beta (TGFβ) pathway, and expression of transcription factors. To understand the mechanisms underlying delayed attachment of cells depleted of Shoc2, changes in expression of the protein of extracellular matrix (lectin galactoside-binding soluble 3-binding protein; LGALS3BP) were functionally analyzed. We demonstrated that delayed adhesion of the Shoc2-depleted cells is a result of attenuated expression and secretion of LGALS3BP. Together our results suggest that Shoc2 regulates cell motility by modulating ERK1/2 signals to cell adhesion.
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Affiliation(s)
- Myoungkun Jeoung
- Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, KY 40536, United States
| | - Eun Ryoung Jang
- Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, KY 40536, United States
| | - Jinpeng Liu
- Markey Cancer Center and Department of Biostatistics, University of Kentucky, Lexington, KY 40536, United States
| | - Chi Wang
- Markey Cancer Center and Department of Biostatistics, University of Kentucky, Lexington, KY 40536, United States
| | - Eric C Rouchka
- Department of Computer Engineering and Computer Science, University of Louisville, Louisville, KY 40292, United States
| | - Xiaohong Li
- Department of Anatomical Sciences and Neurobiology, University of Louisville, Louisville, KY 40292, United States; Department of Bioinformatics and Biostatistics, University of Louisville, Louisville, KY 40292, United States
| | - Emilia Galperin
- Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, KY 40536, United States.
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9
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Lodermeyer V, Suhr K, Schrott N, Kolbe C, Stürzel CM, Krnavek D, Münch J, Dietz C, Waldmann T, Kirchhoff F, Goffinet C. 90K, an interferon-stimulated gene product, reduces the infectivity of HIV-1. Retrovirology 2013; 10:111. [PMID: 24156545 PMCID: PMC3827937 DOI: 10.1186/1742-4690-10-111] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Accepted: 10/14/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In response to viral infections, interferons induce the transcription of several hundred genes in mammalian cells. Specific antiviral functions, however, have only been attributed to a few of them. 90K/LGALS3BP has been reported to be an interferon-stimulated gene that is upregulated in individuals with cancer or HIV-1 infection. RESULTS Here, we show that 90K expression dose-dependently decreased the particle infectivity of HIV-1 progeny. The lower infectivity of released particles correlated with reduced virion incorporation of mature envelope glycoproteins gp120 and gp41. Further, proteolytic processing of the gp160 precursor and surface expression of gp120 in the producer cell were impaired in the presence of 90K expression. In contrast, expression of Gag, Nef and Vpu, and virus release were not grossly affected by 90K expression. 90K-imposed restriction occurred in the absence of direct interaction of 90K with HIV-1 Env or entrapment of Env in the ER. The cell-associated, but not the secreted species of 90K, mediated the antiviral effect. A truncated version of human 90K, solely consisting of the two intermediate domains, displayed a similar antiviral activity as the full-length wildtype 90K, indicating that the N-terminal SRCR-like domain and the C-terminal domain are dispensable for 90K's antiviral activity. The murine homolog of 90K, CypCAP (Cyclophilin C-associated protein), neither modulated particle infectivity of HIV-1 nor lowered the virion incorporation of mature gp120, suggesting a species-specific mode of action. 90K was expressed at basal levels in TZM-bl cells and in primary macrophages, and at low levels in CD4⁺ T-cells and PBMCs. 90K's susceptibility to IFN-mediated stimulation of expression was cell type-specific. siRNA-mediated knockdown of 90K in TZM-bl cells and primary macrophages enhanced the incorporation of Env glycoproteins into progeny virions, boosted the particle infectivity of released HIV-1, and accelerated HIV-1 spread. Conversely, treatment of HIV-1 infected macrophages with IFN-α induced 90K expression and lowered the particle infectivity of HIV-1. CONCLUSIONS Thus, 90K constitutes a novel antiviral factor that reduces the particle infectivity of HIV-1, involving interference with the maturation and incorporation of HIV-1 Env molecules into virions.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Christine Goffinet
- Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany.
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10
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Iacovazzi PA, Cozzolongo R, Lanzillotta E, Frisullo S, Guerra V, Correale M. Serum 90K/Mac-2 binding protein (Mac-2BP) as a response predictor to peginterferon and ribavirin combined treatment in HCV chronic patients. Immunopharmacol Immunotoxicol 2010; 30:687-700. [PMID: 18720164 DOI: 10.1080/08923970802278177] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
90K/Mac-2BP glycoprotein is involved in the immune defense against a variety of neoplasms and viral infections, modulating the activity of several effectors such as natural killer cells. Quite interestingly, 90K/Mac-2BP is associated to a poor response to interferon (IFN) alpha in hepatitis C virus (HCV) infected patients. Here, in 70 consecutive HCV chronic patients, we have evaluated 90K basal levels as a response predictor to combined therapy with Peginterferon and Ribavirin. We have found higher 90K levels in genotype 1/4 than in genotype 2/3 (p = 0.006) and in 62.5% of non-responders than in 20% of responders (p < 0.001). Genotype 1/4, higher 90K and gamma glutamyl transferase (gammaGT) levels resulted independently associated to a status of refractoriness to therapy. Consequently, evaluation of 90K serum levels seems to be a promising useful marker of response to combined therapy in HCV disease.
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Affiliation(s)
- Palma A Iacovazzi
- Clinical Pathology, National Institute of Gastroenterology, S. de Bellis, Bari, Italy.
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Grassadonia A, Tinari N, Fiorentino B, Nakazato M, Chung HK, Giuliani C, Napolitano G, Iacobelli S, Howcroft TK, Singer DS, Kohn LD. Upstream stimulatory factor regulates constitutive expression and hormonal suppression of the 90K (Mac-2BP) protein. Endocrinology 2007; 148:3507-17. [PMID: 17446190 DOI: 10.1210/en.2007-0024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We previously reported that hormones important for the normal growth and function of FRTL-5 rat thyroid cells, TSH, or its cAMP signal plus insulin or IGF-I, could transcriptionally suppress constitutive and gamma-interferon (IFN)-increased synthesis of the 90K protein (also known as Mac-2BP). Here we cloned the 5'-flanking region of the rat 90K gene and identified a minimal promoter containing an interferon response element and a consensus E-box or upstream stimulator factor (USF) binding site, which are highly conserved in both the human and murine genes. We show that suppression of constitutive and gamma-IFN-increased 90K gene expression by TSH/cAMP plus insulin/IGF-I depends on the ability of the hormones to decrease the binding of USF to the E-box, located upstream of the interferon response element. This site is required for the constitutive expression of the 90K gene. Transfection with USF1 and USF2 cDNAs increases constitutive promoter activity, attenuates the ability of TSH/cAMP plus insulin/IGF-I to decrease constitutive or gamma-IFN-increased 90K gene expression but does not abrogate the ability of gamma-IFN itself to increase 90K gene expression.
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Affiliation(s)
- Antonino Grassadonia
- Cell Regulation Section, Metabolic Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
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Leszczyniecka M, Su ZZ, Kang DC, Sarkar D, Fisher PB. Expression regulation and genomic organization of human polynucleotide phosphorylase, hPNPase(old-35), a Type I interferon inducible early response gene. Gene 2004; 316:143-56. [PMID: 14563561 DOI: 10.1016/s0378-1119(03)00752-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An overlapping pathway screening (OPS) approach designed to identify and clone genes displaying parallel expression profiles as a function of induction of terminal differentiation and cellular senescence in human cells identified a novel gene old-35. Sequence and functional analysis indicates that old-35 encodes human polynucleotide phosphorylase, hPNPase(old-35). Polynucleotide phosphorylases comprise a family of phosphate dependent 3'-5' RNA exonucleases implicated in RNA regulation. Treatment of HO-1 human melanoma and additional diverse normal and tumor-derived human cell types with Type I interferon (IFN), IFN-beta or IFN-alpha, induces hPNPase(old-35) expression. To provide insights into the regulation of hPNPase(old-35), we cloned and analyzed the promoter region of this gene. These studies demonstrate that IFN-beta controls hPNPase(old-35) expression by transcriptional modulation rather than by altering mRNA stability. Transcriptional activation of hPNPase(old-35) by IFN-beta is primarily mediated by the interferon stimulatory response element (ISRE) present in its promoter. Analysis of hPNPase(old-35) expression in cell lines defective in various IFN signaling molecules confirms that hPNPase(old-35) expression is dependent upon the Janus activated kinase (JAK)/signal transducers and activators of transcription (STAT) pathway. Furthermore, gel shift analyses document that hPNPase(old-35) is a direct target of the interferon stimulated gene factor 3 (ISGF3) complex. The hPNPase(old-35) gene spans approximately 54 kb of genomic DNA and is distributed on 28 exons and 27 introns. hPNPase(old-35) maps to 2p15-2p16.1, a region implicated in hereditary nonpolyposis colorectal cancer, Carney complex, Doyne's honeycomb retinal dystrophy and several other diseases. To provide insights into PNPase function in vivo, we have also cloned the mouse PNPase(old-35) cDNA, mPNPase(old-35). Induction of hPNPase(old-35) by IFN treatment as well as during differentiation and senescence suggest that this gene may play a significant role in regulating cellular growth and that overlapping gene expression changes, also induced by IFN, may contribute to these important physiological processes.
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MESH Headings
- 5' Untranslated Regions/genetics
- Animals
- Base Sequence
- Binding Sites/genetics
- Cell Line, Tumor
- Chromosome Mapping
- Chromosomes, Human, Pair 2/genetics
- Chromosomes, Human, Pair 3/genetics
- Chromosomes, Human, Pair 7/genetics
- Cloning, Molecular
- DNA-Binding Proteins/genetics
- DNA-Binding Proteins/metabolism
- Exons
- Exoribonucleases/genetics
- Exoribonucleases/metabolism
- Gene Expression Regulation, Enzymologic/drug effects
- Genes/genetics
- HeLa Cells
- Humans
- Interferon Type I/pharmacology
- Interferon-Stimulated Gene Factor 3
- Interferon-Stimulated Gene Factor 3, gamma Subunit
- Interferon-beta/pharmacology
- Introns
- Janus Kinase 1
- Mice
- Molecular Sequence Data
- Mutation
- Oligonucleotides/genetics
- Oligonucleotides/metabolism
- Promoter Regions, Genetic/genetics
- Protein Binding
- Protein-Tyrosine Kinases/genetics
- Protein-Tyrosine Kinases/metabolism
- Pseudogenes/genetics
- RNA, Messenger/drug effects
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Regulatory Sequences, Nucleic Acid/genetics
- STAT1 Transcription Factor
- Sequence Alignment
- Sequence Homology, Amino Acid
- Signal Transduction
- Trans-Activators/genetics
- Trans-Activators/metabolism
- Transcription Factors/metabolism
- Transcription Initiation Site
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Affiliation(s)
- Magdalena Leszczyniecka
- Department of Pathology, College of Physicians and Surgeons, Herbert Irving Comprehensive Cancer Center, Columbia University, 630 West 168th Street, New York, NY 10032, USA
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Iacovazzi PA, Trisolini A, Barletta D, Elba S, Manghisi OG, Correale M. Serum 90K/MAC-2BP glycoprotein in patients with liver cirrhosis and hepatocellular carcinoma: a comparison with alpha-fetoprotein. Clin Chem Lab Med 2001; 39:961-5. [PMID: 11758611 DOI: 10.1515/cclm.2001.155] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Glycoprotein 90K/MAC-2BP is a member of the scavenger receptor cystein-rich protein superfamily, which is thought to be involved in immune surveillance, defending the body against pathogens and cancer. 90K serum levels are elevated in patients with cancer of various origins and in viral infections, such as human immunodeficiency virus and hepatitis C virus (HCV). Because in patients with HCV-related cirrhosis the incidence of hepatocellular carcinoma (HCC) is high, in the present paper we examined, by means of an enzyme-linked immunosorbent assay, the 90K serum levels in 103 patients with liver cirrhosis, and in 69 with HCC, and compared them to alpha-fetoprotein, the reference tumor marker for this neoplasm. Serum levels of 90K (cut-off 14 microg/ml) were elevated both in cirrhosis (39%) and HCC (46%) compared to controls (14.1 microg/ml vs. 10.6 microg/ml in cirrhosis, and 14.8 microg/ml vs. 9.1 microg/ml in HCC, p < or = 0.001). There was a significant association with the presence of anti-HCV antibodies. 90K was found to be a non-specific tumor marker which is complementary to alpha-fetoprotein on the basis of its probable different biological significance. In fact, 74% of HCC patients had at least one positive marker. Combined use of 90K and alpha-fetoprotein could improve the sensitivity of a single test in the diagnosis of HCC.
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Affiliation(s)
- P A Iacovazzi
- Clinical Laboratory Unit, IRCCS Gastroenterology Institute S. De Bellis, Castellana Grotte (Bari), Italy.
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