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Liu L, Wang X, He Q, Yu B, Wang J, Shen H. Differential diagnosis of gastric low- and high grade dysplasia using C6orf15 protein. Ann Diagn Pathol 2024; 71:152298. [PMID: 38547762 DOI: 10.1016/j.anndiagpath.2024.152298] [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: 02/07/2024] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 06/09/2024]
Abstract
OBJECTIVE To investigate the expression of C6orf15 protein in gastric endoscopic biopsy specimens and its usage as an ancillary diagnostic biomarker in determining the grade of gastric dysplasia. METHODS We selected 102 patients with gastric endoscopic biopsy specimens from Jinling Hospital. These were divided into four groups: 22 cases of gastric mucosal benign lesions, 28 with low-grade dysplasia (LGD, intestinal-type: 21 cases,foveolar-type: 7cases), 28 with high-grade dysplasia (HGD, intestinal-type: 20 cases,foveolar-type: 8 cases), and 24 cases of gastric adenocarcinoma. We examined the expressions of C6orf15, P53, and Ki67 in 102 gastric endoscopic biopsy specimens, including 47 cases with accompanying endoscopic submucosal dissection (ESD) specimens, using immunohistochemistry. RESULTS In gastric HGD and gastric adenocarcinoma, the c6orf15 protein exhibits diffuse and strong cytoplasmic expression in tumor cells. Conversely, in gastric LGD and benign gastric mucosal lesions, the c6orf15 protein shows negative or faint yellow cytoplasmic staining. The expression rate of C6orf15 in high-grade gastric dysplasia (HGD, 93 %) and gastric adenocarcinoma (100 %) was significantly higher than in the gastric mucosal benign lesion group (0 %) and the low-grade dysplasia (LGD, 7 %) group (P < 0.001). CONCLUSION The detection of C6orf15 protein expression could serve as a valuable adjunctive diagnostic tool for distinguishing between gastric HGD, LGD, and benign lesions. The combined assessment of C6orf15, P53, and Ki67 expressions may be beneficial in determining the grade of gastric dysplasia and evaluating the risk of progression in gastric mucosal lesions in clinical practice.
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Affiliation(s)
- Leilei Liu
- Affiliated Hospital of Nanjing University of Chinese Medicine (Jiangsu Province Hospital of Chinese Medicine), Nanjing 210029, China; Department of Pathology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - Xuan Wang
- Department of Pathology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - Qibin He
- Department of Gastroenterology, Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 211199, China
| | - Bo Yu
- Department of Pathology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - Jiandong Wang
- Department of Pathology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China.
| | - Hong Shen
- Affiliated Hospital of Nanjing University of Chinese Medicine (Jiangsu Province Hospital of Chinese Medicine), Nanjing 210029, China.
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Tribolet L, Brice AM, Fulford TS, Layton DS, Godfrey DI, Bean AGD, Stewart CR. Identification of a novel role for the immunomodulator ILRUN in the development of several T cell subsets in mice. Immunobiology 2023; 228:152380. [PMID: 37031606 DOI: 10.1016/j.imbio.2023.152380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 03/20/2023] [Accepted: 03/26/2023] [Indexed: 03/31/2023]
Abstract
Inflammation and lipid regulator with UBA-like and NBR1-like domains (ILRUN) is a protein-encoding gene associated with innate immune signaling, lipid metabolism and cancer. In the context of innate immunity, ILRUN inhibits IRF3-mediated transcription of antimicrobial and proinflammatory cytokines by inducing degradation of the transcriptional coactivators CBP and p300. There remains a paucity of information, however, regarding the innate immune roles of ILRUN beyond in vitro analyses. To address this, we utilize a knockout mouse model to investigate the effect of ILRUN on cytokine expression in splenocytes and on the development of immune cell populations in the spleen and thymus. We show elevated production of tumor necrosis factor and interleukin-6 cytokines in ILRUN-deficient splenocytes following stimulation with the innate immune ligands polyinosinic:polycytidylic acid or lipopolysaccharide. Differences were also observed in the populations of several T cell subsets, including regulatory, mucosal-associated invariant and natural killer. These data identify novel functions for ILRUN in the development of certain immune cell populations and support previous in vitro findings that ILRUN negatively regulates the synthesis of pathogen-stimulated cytokines. This establishes the ILRUN knockout mouse model as a valuable resource for further study of the functions of ILRUN in health and disease.
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Affiliation(s)
- Leon Tribolet
- CSIRO Health & Biosecurity, Australian Centre for Disease Preparedness, Geelong 3220, Victoria, Australia
| | - Aaron M Brice
- CSIRO Health & Biosecurity, Australian Centre for Disease Preparedness, Geelong 3220, Victoria, Australia
| | - Thomas S Fulford
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne 3000, Victoria, Australia
| | - Daniel S Layton
- CSIRO Health & Biosecurity, Australian Centre for Disease Preparedness, Geelong 3220, Victoria, Australia
| | - Dale I Godfrey
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne 3000, Victoria, Australia
| | - Andrew G D Bean
- CSIRO Health & Biosecurity, Australian Centre for Disease Preparedness, Geelong 3220, Victoria, Australia
| | - Cameron R Stewart
- CSIRO Health & Biosecurity, Australian Centre for Disease Preparedness, Geelong 3220, Victoria, Australia.
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3
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Bi X, Stankov S, Lee PC, Wang Z, Wu X, Li L, Ko YA, Cheng L, Zhang H, Hand NJ, Rader DJ. ILRUN Promotes Atherosclerosis Through Lipid-Dependent and Lipid-Independent Factors. Arterioscler Thromb Vasc Biol 2022; 42:1139-1151. [PMID: 35861973 PMCID: PMC9420832 DOI: 10.1161/atvbaha.121.317156] [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] [Indexed: 02/04/2023]
Abstract
BACKGROUND Common genetic variation in close proximity to the ILRUN gene are significantly associated with coronary artery disease as well as with plasma lipid traits. We recently demonstrated that hepatic inflammation and lipid regulator with ubiquitin-associated domain-like and NBR1-like domains (ILRUN) regulates lipoprotein metabolism in vivo in mice. However, whether ILRUN, which is expressed in vascular cells, directly impacts atherogenesis remains unclear. We sought to determine the role of ILRUN in atherosclerosis development in mice. METHODS For our study, we generated global Ilrun-deficient (IlrunKO) male and female mice on 2 hyperlipidemic backgrounds: low density lipoprotein receptor knockout (LdlrKO) and apolipoprotein E knockout (ApoeKO; double knockout [DKO]). RESULTS Compared with littermate control mice (single LdlrKO or ApoeKO), deletion of Ilrun in DKO mice resulted in significantly attenuated both early and advanced atherosclerotic lesion development, as well as reduced necrotic area. DKO mice also had significantly decreased plasma cholesterol levels, primarily attributable to non-HDL (high-density lipoprotein) cholesterol. Hepatic-specific reconstitution of ILRUN in DKO mice on the ApoeKO background normalized plasma lipids, but atherosclerotic lesion area and necrotic area remained reduced in DKO mice. Further analysis showed that loss of Ilrun increased efferocytosis receptor MerTK expression in macrophages, enhanced in vitro efferocytosis, and significantly improved in situ efferocytosis in advanced lesions. CONCLUSIONS Our results support ILRUN as an important novel regulator of atherogenesis that promotes lesion progression and necrosis. It influences atherosclerosis through both plasma lipid-dependent and lipid-independent mechanisms. These findings support ILRUN as the likely causal gene responsible for genetic association of variants with coronary artery disease at this locus and suggest that suppression of ILRUN activity might be expected to reduce atherosclerosis.
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Affiliation(s)
- Xin Bi
- Division of Translational Medicine and Human Genetics, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Sylvia Stankov
- Division of Translational Medicine and Human Genetics, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Paul C. Lee
- Division of Translational Medicine and Human Genetics, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Ziyi Wang
- Cardiometabolic Genomics Program, Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Xun Wu
- Cardiometabolic Genomics Program, Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Li Li
- Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Yi-An Ko
- Division of Translational Medicine and Human Genetics, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Lan Cheng
- Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Hanrui Zhang
- Cardiometabolic Genomics Program, Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Nicholas J. Hand
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Daniel J. Rader
- Division of Translational Medicine and Human Genetics, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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Fan N, Sun Y, Yan L, Chen W, Wang Y, Wang S, Song Y. Itraconazole-Induced the Activation of Adenosine 5'-Monophosphate (Amp)-Activated Protein Kinase Inhibits Tumor Growth of Melanoma via Inhibiting ERK Signaling. Cell Biochem Biophys 2022; 80:331-340. [PMID: 35094205 DOI: 10.1007/s12013-021-01048-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 11/10/2021] [Indexed: 11/25/2022]
Abstract
Itraconazole, an effective broad-spectrum antifungal drug, has been well established for its anticancer activity in cancers including melanoma. However, details concerning its underlying mechanism in melanoma are unclear. This work investigated the function of itraconazole-induced 5'-monophosphate (AMP)-activated protein kinase alpha (AMPKα) in melanoma progression through ERK signaling. The AMPKα level in melanoma tissues and cells was assessed by RT-qPCR and western blot. Survival analysis of patients with melanoma based on the AMPKα expression level was performed according to TCGA database. Melanoma cell proliferation, migration, and invasion were examined using CCK-8, colony formation, wound healing, and Transwell assays. A xenograft tumor model was established to examine the effect of itraconazole on tumor growth in vivo. The AMPKα mRNA and protein levels were reduced in melanoma tissues and cells. A low expression of AMPKα indicated a poor prognosis. Functionally, itraconazole restrained melanoma cell proliferation, migration, and invasion by upregulating AMPKα. Itraconazole activated AMPK signaling and inhibited ERK signaling in melanoma cells. Activation of ERK signaling reversed the effect of itraconazole on cellular process in melanoma. Moreover, itraconazole-induced AMPKα inhibited melanoma tumor growth in vivo by inhibiting ERK signaling. Itraconazole-induced AMPKα inhibits the progression of melanoma by inhibition of ERK signaling.
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Affiliation(s)
- Ni Fan
- Department of Dermatology, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, 215600, Jiangsu, China
| | - Yueping Sun
- Department of Gynaecology and Obstetrics, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, 215600, Jiangsu, China
| | - Lv Yan
- Center of Translational Medicine, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, 215600, Jiangsu, China
| | - Weining Chen
- Department of Dermatology, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, 215600, Jiangsu, China
| | - Yueping Wang
- Department of Dermatology, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, 215600, Jiangsu, China
| | - Shusheng Wang
- Department of General Surgery, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, 215600, Jiangsu, China.
| | - Yu Song
- Department of Oncology, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, 215600, Jiangsu, China.
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ILRUN Downregulates ACE2 Expression and Blocks Infection of Human Cells by SARS-CoV-2. J Virol 2021; 95:e0032721. [PMID: 33963054 DOI: 10.1128/jvi.00327-21] [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: 11/20/2022] Open
Abstract
The human protein-coding gene ILRUN (inflammation and lipid regulator with UBA-like and NBR1-like domains; previously C6orf106) was identified as a proviral factor for Hendra virus infection and was recently characterized to function as an inhibitor of type I interferon expression. Here, we have utilized transcriptome sequencing (RNA-seq) to define cellular pathways regulated by ILRUN in the context of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection of Caco-2 cells. We find that inhibition of ILRUN expression by RNA interference alters transcription profiles of numerous cellular pathways, including upregulation of the SARS-CoV-2 entry receptor ACE2 and several other members of the renin-angiotensin aldosterone system. In addition, transcripts of the SARS-CoV-2 coreceptors TMPRSS2 and CTSL were also upregulated. Inhibition of ILRUN also resulted in increased SARS-CoV-2 replication, while overexpression of ILRUN had the opposite effect, identifying ILRUN as a novel antiviral factor for SARS-CoV-2 replication. This represents, to our knowledge, the first report of ILRUN as a regulator of the renin-angiotensin-aldosterone system (RAAS). IMPORTANCE There is no doubt that the current rapid global spread of COVID-19 has had significant and far-reaching impacts on our health and economy and will continue to do so. Research in emerging infectious diseases, such as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is growing rapidly, with new breakthroughs in the understanding of host-virus interactions to assist with the development of innovative and exciting therapeutic strategies. Here, we present the first evidence that modulation of the human protein-coding gene ILRUN functions as an antiviral factor for SARS-CoV-2 infection, likely through its newly identified role in regulating the expression of SARS-CoV-2 entry receptors ACE2, TMPRSS2, and CTSL. These data improve our understanding of biological pathways that regulate host factors critical to SARS-CoV-2 infection, contributing to the development of antiviral strategies to deal with the current SARS-CoV-2 pandemic.
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6
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Ding X, Cai M, Wang S, Yang Q, Zheng X, Zuo X, Liu S. Gene-based association analysis identified a novel gene associated with systemic lupus erythematosus. Ann Hum Genet 2021; 85:213-220. [PMID: 34145571 DOI: 10.1111/ahg.12439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 05/26/2021] [Accepted: 06/01/2021] [Indexed: 11/24/2022]
Abstract
OBJECTIVE Systemic lupus erythematosus (SLE) is a complex autoimmune disease with strong genetic predisposition. Genome-wide association studies (GWAS) of SLE have identified more than 50 robust susceptibility loci. However, traditional individual SNP-based GWAS have made it difficult to identify variants with small effects. Moreover, variants revealed by GWAS only explain a limited disease heritability, suggesting that many susceptibility genes remain uncovered. METHODS We first curated the published SLE GWAS data from 1047 SLE patients and 1205 healthy controls of Chinese ancestry and performed a gene-based association study. Then quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was conducted to verify novel genes identified above. RESULTS Gene-based association study identified 10 SLE-associated genes, nine of which were reported by previous GWAS, the other one, ILRUN, is a newly identified gene and was further validated by qRT-PCR. Gene expression analysis of Gene Expression Omnibus (GEO) datasets also showed that the expression of ILRUN in patients with SLE was lower than that in normal subjects. CONCLUSION In this study, gene-based association study and qRT-PCR identified that ILRUN is a novel susceptibility gene of SLE. ILRUN may regulate inflammation and antiviral response through its effect on the transcription of type I interferons )I-IFN, and participate in the pathogenesis of SLE.
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Affiliation(s)
- Xian Ding
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Minglong Cai
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Sun Wang
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Qingqing Yang
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Xiaodong Zheng
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Xianbo Zuo
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Shengxiu Liu
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
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Affiliation(s)
- Michael J Thomas
- Department of Pharmacology & Toxicology (M.J.T., M.G.S.-T.), Section on Endocrinology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Mary G Sorci-Thomas
- Department of Pharmacology & Toxicology (M.J.T., M.G.S.-T.), Section on Endocrinology, Medical College of Wisconsin, Milwaukee, Wisconsin.,Department of Medicine (M.G.S.-T.), Section on Endocrinology, Medical College of Wisconsin, Milwaukee, Wisconsin
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8
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Li W, Liu R, Zheng M, Feng F, Liu D, Guo Y, Zhao G, Wen J. New insights into the associations among feed efficiency, metabolizable efficiency traits and related QTL regions in broiler chickens. J Anim Sci Biotechnol 2020; 11:65. [PMID: 32607230 PMCID: PMC7318453 DOI: 10.1186/s40104-020-00469-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 05/01/2020] [Indexed: 12/30/2022] Open
Abstract
Background Improving the feed efficiency would increase profitability for producers while also reducing the environmental footprint of livestock production. This study was conducted to investigate the relationships among feed efficiency traits and metabolizable efficiency traits in 180 male broilers. Significant loci and genes affecting the metabolizable efficiency traits were explored with an imputation-based genome-wide association study. The traits measured or calculated comprised three growth traits, five feed efficiency related traits, and nine metabolizable efficiency traits. Results The residual feed intake (RFI) showed moderate to high and positive phenotypic correlations with eight other traits measured, including average daily feed intake (ADFI), dry excreta weight (DEW), gross energy excretion (GEE), crude protein excretion (CPE), metabolizable dry matter (MDM), nitrogen corrected apparent metabolizable energy (AMEn), abdominal fat weight (AbF), and percentage of abdominal fat (AbP). Greater correlations were observed between growth traits and the feed conversion ratio (FCR) than RFI. In addition, the RFI, FCR, ADFI, DEW, GEE, CPE, MDM, AMEn, AbF, and AbP were lower in low-RFI birds than high-RFI birds (P < 0.01 or P < 0.05), whereas the coefficients of MDM and MCP of low-RFI birds were greater than those of high-RFI birds (P < 0.01). Five narrow QTLs for metabolizable efficiency traits were detected, including one 82.46-kb region for DEW and GEE on Gallus gallus chromosome (GGA) 26, one 120.13-kb region for MDM and AMEn on GGA1, one 691.25-kb region for the coefficients of MDM and AMEn on GGA5, one region for the coefficients of MDM and MCP on GGA2 (103.45–103.53 Mb), and one 690.50-kb region for the coefficient of MCP on GGA14. Linkage disequilibrium (LD) analysis indicated that the five regions contained high LD blocks, as well as the genes chromosome 26 C6orf106 homolog (C26H6orf106), LOC396098, SH3 and multiple ankyrin repeat domains 2 (SHANK2), ETS homologous factor (EHF), and histamine receptor H3-like (HRH3L), which are known to be involved in the regulation of neurodevelopment, cell proliferation and differentiation, and food intake. Conclusions Selection for low RFI significantly decreased chicken feed intake, excreta output, and abdominal fat deposition, and increased nutrient digestibility without changing the weight gain. Five novel QTL regions involved in the control of metabolizable efficiency in chickens were identified. These results, combined through nutritional and genetic approaches, should facilitate novel insights into improving feed efficiency in poultry and other species.
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Affiliation(s)
- Wei Li
- State Key Laboratory of Animal Nutrition; Key Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193 China.,College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Ranran Liu
- State Key Laboratory of Animal Nutrition; Key Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193 China
| | - Maiqing Zheng
- State Key Laboratory of Animal Nutrition; Key Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193 China
| | - Furong Feng
- Foshan Gaoming Xinguang Agricultural and animal Industrials Corporation, Foshan, 528515 China
| | - Dawei Liu
- Foshan Gaoming Xinguang Agricultural and animal Industrials Corporation, Foshan, 528515 China
| | - Yuming Guo
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Guiping Zhao
- State Key Laboratory of Animal Nutrition; Key Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193 China
| | - Jie Wen
- State Key Laboratory of Animal Nutrition; Key Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193 China
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Ambrose RL, Brice AM, Caputo AT, Alexander MR, Tribolet L, Liu YC, Adams TE, Bean AG, Stewart CR. Molecular characterisation of ILRUN, a novel inhibitor of proinflammatory and antimicrobial cytokines. Heliyon 2020; 6:e04115. [PMID: 32518853 PMCID: PMC7270589 DOI: 10.1016/j.heliyon.2020.e04115] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 04/28/2020] [Accepted: 05/28/2020] [Indexed: 12/15/2022] Open
Abstract
Regulation of type-I interferon (IFN) production is essential to the balance between antimicrobial defence and autoimmune disorders. The human protein-coding gene ILRUN (inflammation and lipid regulator with UBA-like and NBR1-like domains, previously C6orf106) was recently characterised as an inhibitor of antiviral and proinflammatory cytokine (interferon-alpha/beta and tumor necrosis factor alpha) transcription. Currently there is a paucity of information about the molecular characteristics of ILRUN, despite it being associated with several diseases including virus infection, coronary artery disease, obesity and cancer. Here, we characterise ILRUN as a highly phylogenetically conserved protein containing UBA-like and a NBR1-like domains that are both essential for inhibition of type-I interferon and tumor necrosis factor alpha) transcription in human cells. We also solved the crystal structure of the NBR1-like domain, providing insights into its potential role in ILRUN function. This study provides critical information for future investigations into the role of ILRUN in health and disease.
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Affiliation(s)
- Rebecca L. Ambrose
- CSIRO Health & Biosecurity, Australian Centre for Disease Preparedness, Geelong, Victoria, 3220, Australia
| | - Aaron M. Brice
- CSIRO Health & Biosecurity, Australian Centre for Disease Preparedness, Geelong, Victoria, 3220, Australia
| | | | - Marina R. Alexander
- CSIRO Health & Biosecurity, Australian Centre for Disease Preparedness, Geelong, Victoria, 3220, Australia
| | - Leon Tribolet
- CSIRO Health & Biosecurity, Australian Centre for Disease Preparedness, Geelong, Victoria, 3220, Australia
| | - Yu Chih Liu
- CSIRO Manufacturing, Parkville, Victoria, 3010, Australia
| | | | - Andrew G.D. Bean
- CSIRO Health & Biosecurity, Australian Centre for Disease Preparedness, Geelong, Victoria, 3220, Australia
| | - Cameron R. Stewart
- CSIRO Health & Biosecurity, Australian Centre for Disease Preparedness, Geelong, Victoria, 3220, Australia
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