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Vashisth V, Sharma G, Giri J, Sharma AK, Tyagi AK. Rice A20/AN1 protein, OsSAP10, confers water-deficit stress tolerance via proteasome pathway and positive regulation of ABA signaling in Arabidopsis. PLANT CELL REPORTS 2024; 43:215. [PMID: 39138747 DOI: 10.1007/s00299-024-03304-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Accepted: 07/29/2024] [Indexed: 08/15/2024]
Abstract
KEY MESSAGE Overexpression of rice A20/AN1 zinc-finger protein, OsSAP10, improves water-deficit stress tolerance in Arabidopsis via interaction with multiple proteins. Stress-associated proteins (SAPs) constitute a class of A20/AN1 zinc-finger domain containing proteins and their genes are induced in response to multiple abiotic stresses. The role of certain SAP genes in conferring abiotic stress tolerance is well established, but their mechanism of action is poorly understood. To improve our understanding of SAP gene functions, OsSAP10, a stress-inducible rice gene, was chosen for the functional and molecular characterization. To elucidate its role in water-deficit stress (WDS) response, we aimed to functionally characterize its roles in transgenic Arabidopsis, overexpressing OsSAP10. OsSAP10 transgenics showed improved tolerance to water-deficit stress at seed germination, seedling and mature plant stages. At physiological and biochemical levels, OsSAP10 transgenics exhibited a higher survival rate, increased relative water content, high osmolyte accumulation (proline and soluble sugar), reduced water loss, low ROS production, low MDA content and protected yield loss under WDS relative to wild type (WT). Moreover, transgenics were hypersensitive to ABA treatment with enhanced ABA signaling and stress-responsive genes expression. The protein-protein interaction studies revealed that OsSAP10 interacts with proteins involved in proteasomal pathway, such as OsRAD23, polyubiquitin and with negative and positive regulators of stress signaling, i.e., OsMBP1.2, OsDRIP2, OsSCP and OsAMTR1. The A20 domain was found to be crucial for most interactions but insufficient for all interactions tested. Overall, our investigations suggest that OsSAP10 is an important candidate for improving water-deficit stress tolerance in plants, and positively regulates ABA and WDS signaling via protein-protein interactions and modulation of endogenous genes expression in ABA-dependent manner.
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Affiliation(s)
- Vishal Vashisth
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, 110021, India
| | - Gunjan Sharma
- National Institute of Plant Genome Research, New Delhi, 110067, India
| | - Jitender Giri
- National Institute of Plant Genome Research, New Delhi, 110067, India
| | - Arun K Sharma
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, 110021, India
| | - Akhilesh K Tyagi
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, 110021, India.
- National Institute of Plant Genome Research, New Delhi, 110067, India.
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Bagyinszky E, An SSA. Genetic Mutations Associated With TNFAIP3 (A20) Haploinsufficiency and Their Impact on Inflammatory Diseases. Int J Mol Sci 2024; 25:8275. [PMID: 39125844 PMCID: PMC11311569 DOI: 10.3390/ijms25158275] [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: 06/13/2024] [Revised: 07/19/2024] [Accepted: 07/23/2024] [Indexed: 08/12/2024] Open
Abstract
TNF-α-induced protein 3 (TNFAIP3), commonly referred to as A20, is an integral part of the ubiquitin-editing complex that significantly influences immune regulation, apoptosis, and the initiation of diverse immune responses. The A20 protein is characterized by an N-terminal ovarian tumor (OTU) domain and a series of seven zinc finger (ZNF) domains. Mutations in the TNFAIP3 gene are implicated in various immune-related diseases, such as Behçet's disease, polyarticular juvenile idiopathic arthritis, autoimmune thyroiditis, autoimmune hepatitis, and rheumatoid arthritis. These mutations can lead to a spectrum of symptoms, including, but not limited to, recurrent fever, ulcers, rashes, musculoskeletal and gastrointestinal dysfunctions, cardiovascular issues, and respiratory infections. The majority of these mutations are either nonsense (STOP codon) or frameshift mutations, which are typically associated with immune dysfunctions. Nonetheless, missense mutations have also been identified as contributors to these conditions. These genetic alterations may interfere with several biological pathways, notably abnormal NF-κB signaling and dysregulated ubiquitination. Currently, there is no definitive treatment for A20 haploinsufficiency; however, therapeutic strategies can alleviate the symptoms in patients. This review delves into the mutations reported in the TNFAIP3 gene, the clinical progression in affected individuals, potential disease mechanisms, and a brief overview of the available pharmacological interventions for A20 haploinsufficiency. Mandatory genetic testing of the TNFAIP3 gene should be performed in patients diagnosed with autoinflammatory disorders to better understand the genetic underpinnings and guide treatment decisions.
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Affiliation(s)
- Eva Bagyinszky
- Graduate School of Environment Department of Industrial and Environmental Engineering, Gachon University, Seongnam 13120, Republic of Korea
| | - Seong Soo A. An
- Department of Bionano Technology, Gachon Medical Research Institute, Gachon University, Seongnam 13120, Republic of Korea
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3
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Yang W, Wang Y, Tao K, Li R. Metabolite itaconate in host immunoregulation and defense. Cell Mol Biol Lett 2023; 28:100. [PMID: 38042791 PMCID: PMC10693715 DOI: 10.1186/s11658-023-00503-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 10/20/2023] [Indexed: 12/04/2023] Open
Abstract
Metabolic states greatly influence functioning and differentiation of immune cells. Regulating the metabolism of immune cells can effectively modulate the host immune response. Itaconate, an intermediate metabolite derived from the tricarboxylic acid (TCA) cycle of immune cells, is produced through the decarboxylation of cis-aconitate by cis-aconitate decarboxylase in the mitochondria. The gene encoding cis-aconitate decarboxylase is known as immune response gene 1 (IRG1). In response to external proinflammatory stimulation, macrophages exhibit high IRG1 expression. IRG1/itaconate inhibits succinate dehydrogenase activity, thus influencing the metabolic status of macrophages. Therefore, itaconate serves as a link between macrophage metabolism, oxidative stress, and immune response, ultimately regulating macrophage function. Studies have demonstrated that itaconate acts on various signaling pathways, including Keap1-nuclear factor E2-related factor 2-ARE pathways, ATF3-IκBζ axis, and the stimulator of interferon genes (STING) pathway to exert antiinflammatory and antioxidant effects. Furthermore, several studies have reported that itaconate affects cancer occurrence and development through diverse signaling pathways. In this paper, we provide a comprehensive review of the role IRG1/itaconate and its derivatives in the regulation of macrophage metabolism and functions. By furthering our understanding of itaconate, we intend to shed light on its potential for treating inflammatory diseases and offer new insights in this field.
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Affiliation(s)
- Wenchang Yang
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, Hubei, China
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yaxin Wang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Kaixiong Tao
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, Hubei, China
| | - Ruidong Li
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, Hubei, China.
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4
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Xu B, Huang S, Peng W, Cai G, Zhou H, Guo Y, Du J, Ge X, Wu X. Comprehensive analysis of hub biomarkers associated with immune and oxidative stress in Hashimoto's thyroiditis. Arch Biochem Biophys 2023; 745:109713. [PMID: 37543352 DOI: 10.1016/j.abb.2023.109713] [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: 06/11/2023] [Revised: 07/22/2023] [Accepted: 08/03/2023] [Indexed: 08/07/2023]
Abstract
Hashimoto's thyroiditis (HT) is a type of autoimmune disorder with a complex interplay between immune disorder and oxidative stress (OS). This research aimed to discover biomarkers and potential treatment targets associated with immune and OS dysregulation in HT through integrated bioinformatics analysis and clinical validations. Differential gene expression analysis of GSE138198 dataset from the GEO database identified 1490 differentially expressed genes (DEGs) in HT, including 883 upregulated and 607 downregulated genes. Weighted gene co-expression network analysis explored module genes associated with HT. Overlapping the differentially expressed module genes with immune-related and OS-related genes identified eight differentially expressed module genes associated with immune and OS (DEIOGs) in HT. Protein-protein interaction network analysis identified five hub genes (TNFAIP3, FOS, PTK2B, STAT1, and MMP9). We confirmed four hub genes (TNFAIP3, PTK2B, STAT1 and MMP9) in GSE29315 dataset and clinical thyroid samples, which showed high diagnostic accuracy (AUC >0.7) for HT. The expression of these four genes was positively correlated with serum thyroid peroxidase antibody, thyroglobulin antibody levels, and inflammatory infiltration scores in clinical thyroid samples. Immune profiling revealed distinct profiles in HT, such as B cells memory, monocytes and macrophages. Additionally, all hub genes were inversely associated with monocytes. Further, miRNA-mRNA network analysis was conducted, and a regulatory network comprising four hub genes, 238 miRNAs and 32 TFs was established. These findings suggest that immune cells play a crucial role in the development of HT, and the hub genes TNFAIP3, PTK2B, STAT1, and MMP9 may be key players in HT through immune- and OS-related signaling pathways. Our results may provide valuable insights into the pathogenesis and therapeutic monitoring of HT.
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Affiliation(s)
- Bojin Xu
- Suzhou Medical College of Soochow University, Soochow, 215000, China; Department of Endocrinology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200050, China
| | - Shan Huang
- Department of Endocrinology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200050, China
| | - Wenfang Peng
- Department of Endocrinology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200050, China
| | - Guanjun Cai
- Department of Endocrinology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200050, China
| | - Haiping Zhou
- Department of Endocrinology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200050, China
| | - Yiming Guo
- Department of Endocrinology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200050, China
| | - Juan Du
- Department of Endocrinology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200050, China
| | - Xiaoxu Ge
- Department of Endocrinology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200050, China
| | - Xiaohong Wu
- Suzhou Medical College of Soochow University, Soochow, 215000, China; Geriatric Medicine Center, Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Department of Endocrinology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Zhejiang, 310014, China.
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5
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Li D, Yang Y, Wang T, Zhang W, Hua S, Ruan Q, Wang X, Zhu C, Meng Z. Liver Transcriptome Shows Differences between Acute Hypoxia-Tolerant and Intolerant Individuals of Greater Amberjack ( Seriola dumerili). Animals (Basel) 2023; 13:2717. [PMID: 37684981 PMCID: PMC10486600 DOI: 10.3390/ani13172717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/19/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
Acute hypoxia is a common abiotic stress in commercial aquaculture and has significant effects on fish physiology and metabolism. Due to its large size and rapid growth, the greater amberjack (Seriola dumerili) is an economically important fish with high farming value. This species is intolerant to hypoxia, which makes it susceptible to mass mortality and hinders the progress of amberjack cultivation. Based on a comparative analysis of the liver transcriptome between acute hypoxia-tolerant (HT) and -intolerant (HS) groups, this study first explored the molecular mechanisms of acute hypoxia in greater amberjack. By simulating the acute hypoxic environment and using RNA sequencing (RNA-Seq), the differences in liver transcriptional changes between the acute hypoxia-tolerant (HT) and hypoxia-intolerant (HS) groups of greater amberjack were probed. Based on differential expression analysis, 829 differentially expressed genes (DEGs) were screened in both groups. Relative to the HS group, 374 DEGs were upregulated and 455 were downregulated in the HT group. Compared with the HS group, genes such as slc2a5 and prkaa2 related to promoting sugar transport and inhibiting lipid syntheses were upregulated, while genes that inhibit gluconeogenesis and promote lipid syntheses, such as pgp and aacs, were downregulated. The expression of odc1 was significantly and relatively downregulated in the HT group, which would lead to the inhibition of intracellular antioxidant activity and decreased scavenging of ROS. The NF-kB pathway was also promoted to some extent in individuals in the HT group relative to the HS group to resist apoptosis. In addition, the relative downregulation of apoptosis and autophagy-related genes, such as endog, hm13, and casp6, was also detected in the HT group. The present findings first reported the regulation mechanism by which liver tissue coped with the acute hypoxia stress in greater amberjack, which will provide important technical support for preventing acute hypoxia-induced death in advance and reducing economic losses.
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Affiliation(s)
- Duo Li
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China; (D.L.); (Y.Y.); (T.W.); (W.Z.); (S.H.); (Q.R.)
| | - Yang Yang
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China; (D.L.); (Y.Y.); (T.W.); (W.Z.); (S.H.); (Q.R.)
| | - Tong Wang
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China; (D.L.); (Y.Y.); (T.W.); (W.Z.); (S.H.); (Q.R.)
| | - Weiwei Zhang
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China; (D.L.); (Y.Y.); (T.W.); (W.Z.); (S.H.); (Q.R.)
| | - Sijie Hua
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China; (D.L.); (Y.Y.); (T.W.); (W.Z.); (S.H.); (Q.R.)
| | - Qingxin Ruan
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China; (D.L.); (Y.Y.); (T.W.); (W.Z.); (S.H.); (Q.R.)
| | - Xi Wang
- Area of Ecology and Biodiversity, School of Biological Sciences, University of Hong Kong, Hong Kong SAR 999077, China;
| | - Chunhua Zhu
- Guangdong Research Center on Reproductive Control and Breeding Technology of Indigenous Valuable Fish, Species, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China;
- Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524025, China
| | - Zining Meng
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China; (D.L.); (Y.Y.); (T.W.); (W.Z.); (S.H.); (Q.R.)
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6
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Wang X, Chai Y, Guo Z, Wang Z, Liao H, Wang Z, Wang Z. A new perspective on the potential application of RIPK1 in the treatment of sepsis. Immunotherapy 2023; 15:43-56. [PMID: 36597707 DOI: 10.2217/imt-2022-0219] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
RIPK1 is a global cellular sensor that can determine the survival of cells. Generally, RIPK1 can induce cell apoptosis and necroptosis through TNF, Fas and lipopolysaccharide stimulation, while its scaffold function can sense the fluctuation of cellular energy and promote cell survival. Sepsis is a nonspecific disease that seriously threatens human health. There is some dispute in the literature about the role of RIPK1 in sepsis. In this review, the authors attempt to comprehensively discuss the differential results for RIPK1 in sepsis by summarizing the underlying molecular mechanism and putting forward a tentative idea as to whether RIPK1 can serve as a biomarker for the monitoring of treatment and progression in sepsis.
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Affiliation(s)
- Xuesong Wang
- School of Clinical Medicine, Tsinghua University, Beijing, China, 30 Shuangqing Road, Haidian District Beijing, Beijing, 102218, China
| | - Yan Chai
- School of Clinical Medicine, Tsinghua University, Beijing, China, 30 Shuangqing Road, Haidian District Beijing, Beijing, 102218, China
| | - Zhe Guo
- School of Clinical Medicine, Tsinghua University, Beijing, China, 30 Shuangqing Road, Haidian District Beijing, Beijing, 102218, China
| | - Ziyi Wang
- School of Clinical Medicine, Tsinghua University, Beijing, China, 30 Shuangqing Road, Haidian District Beijing, Beijing, 102218, China
| | - Haiyan Liao
- School of Clinical Medicine, Tsinghua University, Beijing, China, 30 Shuangqing Road, Haidian District Beijing, Beijing, 102218, China
| | - Ziwen Wang
- School of Clinical Medicine, Tsinghua University, Beijing, China, 30 Shuangqing Road, Haidian District Beijing, Beijing, 102218, China
| | - Zhong Wang
- Beijing Tsinghua Changgung Hospital Affiliated to Tsinghua University, Beijing, China, 168 Litang Road, Changping District, Beijing, 102218, China
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Gui Z, Zhang Y, Zhang A, Xia W, Jia Z. CARMA3: A potential therapeutic target in non-cancer diseases. Front Immunol 2022; 13:1057980. [PMID: 36618379 PMCID: PMC9815110 DOI: 10.3389/fimmu.2022.1057980] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022] Open
Abstract
Caspase recruitment domain and membrane-associated guanylate kinase-like protein 3 (CARMA3) is a scaffold protein widely expressed in non-hematopoietic cells. It is encoded by the caspase recruitment domain protein 10 (CARD10) gene. CARMA3 can form a CARMA3-BCL10-MALT1 complex by recruiting B cell lymphoma 10 (BCL10) and mucosa-associated lymphoid tissue lymphoma translocation protein 1 (MALT1), thereby activating nuclear factor-κB (NF-κB), a key transcription factor that involves in various biological responses. CARMA3 mediates different receptors-dependent signaling pathways, including G protein-coupled receptors (GPCRs) and receptor tyrosine kinases (RTKs). Inappropriate expression and activation of GPCRs and/or RTKs/CARMA3 signaling lead to the pathogenesis of human diseases. Emerging studies have reported that CARMA3 mediates the development of various types of cancers. Moreover, CARMA3 and its partners participate in human non-cancer diseases, including atherogenesis, abdominal aortic aneurysm, asthma, pulmonary fibrosis, liver fibrosis, insulin resistance, inflammatory bowel disease, and psoriasis. Here we provide a review on its structure, regulation, and molecular function, and further highlight recent findings in human non-cancerous diseases, which will provide a novel therapeutic target.
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Affiliation(s)
- Zhen Gui
- Department of Clinical Laboratory, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Yan Zhang
- Department of Clinical Laboratory, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Aihua Zhang
- Department of Nephrology, Children’s Hospital of Nanjing Medical University, Nanjing, China,Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
| | - Weiwei Xia
- Department of Clinical Laboratory, Children’s Hospital of Nanjing Medical University, Nanjing, China,Department of Nephrology, Children’s Hospital of Nanjing Medical University, Nanjing, China,Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China,*Correspondence: Zhanjun Jia, ; Weiwei Xia,
| | - Zhanjun Jia
- Department of Nephrology, Children’s Hospital of Nanjing Medical University, Nanjing, China,Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China,*Correspondence: Zhanjun Jia, ; Weiwei Xia,
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Li X, Wang C, Wang L, Huang R, Li WC, Wang X, Wong SSW, Cai Z, Leung KCF, Jin L. A glutathione-responsive silica-based nanosystem capped with in-situ polymerized cell-penetrating poly(disulfide)s for precisely modulating immuno-inflammatory responses. J Colloid Interface Sci 2022; 614:322-336. [PMID: 35104706 DOI: 10.1016/j.jcis.2022.01.091] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 01/14/2022] [Accepted: 01/15/2022] [Indexed: 01/02/2023]
Abstract
HYPOTHESIS Precise modulation of immuno-inflammatory response is crucial to control periodontal diseases and related systemic comorbidities. The present nanosystem with the controlled-release and cell-penetrating manner enhances the inflammation modulation effects of baicalein in human gingival epithelial cells (hGECs) for better oral healthcare. EXPERIMENTS We constructed a red-emissive mesoporous silica nanoparticle-based nanosystem with cell-penetrating poly(disulfide) (CPD) capping, through a facile in-situ polymerization approach. It was featured with a glutathione-responsive manner and instant cellular internalization capacity for precisely delivering baicalein intracellularly. Laboratory experiments assessed whether and how the nanosystem per se with the delivered baicalein could modulate immuno-inflammatory responses in hGECs. FINDINGS The in-situ polymerized CPD layer capped the nanoparticles and yet controlled the release of baicalein in a glutathione-responsive manner. The CPD coating could facilitate cellular internalization of the nanosystem via endocytosis and thiol-mediated approaches. Notably, the intracellularly released baicalein effectively downregulated the expression of pro-inflammatory cytokines through inhibiting the NF-κB signaling pathway. The nanosystem per se could modulate immuno-inflammatory responses by passivating the cellular response to interlukin-1β. This study highlights that the as-synthesized nanosystem may serve as a novel multi-functional vehicle to modulate innate host response via targeting the NF-κB pathway for precision healthcare.
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Affiliation(s)
- Xuan Li
- Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Hong Kong Special Administrative Region, China
| | - Chuan Wang
- Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Hong Kong Special Administrative Region, China
| | - Leilei Wang
- Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Hong Kong Special Administrative Region, China
| | - Regina Huang
- Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Hong Kong Special Administrative Region, China
| | - Wai-Chung Li
- Department of Chemistry, State Key Laboratory of Environmental and Biological Analysis, The Hong Kong Baptist University, Hong Kong Special Administrative Region, China
| | - Xinna Wang
- Tissue Engineering Laboratory, Department of Mechanical Engineering, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | | | - Zongwei Cai
- Department of Chemistry, State Key Laboratory of Environmental and Biological Analysis, The Hong Kong Baptist University, Hong Kong Special Administrative Region, China
| | - Ken Cham-Fai Leung
- Department of Chemistry, State Key Laboratory of Environmental and Biological Analysis, The Hong Kong Baptist University, Hong Kong Special Administrative Region, China.
| | - Lijian Jin
- Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Hong Kong Special Administrative Region, China.
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Camus V, Viennot M, Lévêque E, Viailly PJ, Tonnelet D, Veresezan EL, Drieux F, Etancelin P, Dubois S, Stamatoullas A, Tilly H, Bohers E, Jardin F. Circulating tumor DNA in primary mediastinal large B-cell lymphoma versus classical Hodgkin lymphoma: a retrospective study. Leuk Lymphoma 2022; 63:834-844. [PMID: 35075971 DOI: 10.1080/10428194.2021.2010060] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Few data exist concerning circulating tumor DNA (ctDNA) relevance in primary mediastinal B-cell lymphoma (PMBL). To explore this topic, we applied a 9-gene next-generation sequencing pipeline to samples from forty-four PMBL patients (median age 36.5 years). The primary endpoint was a similarity between paired biopsy/plasma mutational profiles. We detected at least one variant in 32 plasma samples (80%). The similarity between the biopsy and ctDNA genetic profiles for the 30 patients with paired mutated biopsy/plasma samples was greater than or equal to 80% in 19 patients (63.3%). We then compared PMBL ctDNA features with those of a cohort of Hodgkin lymphoma patients (n = 60). The top three mutated genes were SOCS1, TNFAIP3, and B2M in both lymphoma types. PMBL displayed more alterations in TNFAIP3 (71.9% vs. 46.3%, p = 0.029) and GNA13 (46.9% vs. 17.1%, p = 0.013) than cHL. Our 9-gene set may delineate tumor genotypes using ctDNA samples from both lymphoma types.
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Affiliation(s)
- Vincent Camus
- Department of Hematology, Centre Henri Becquerel, Rouen, France.,INSERM U1245, Centre Henri Becquerel, University of Rouen, Rouen, France
| | - Mathieu Viennot
- INSERM U1245, Centre Henri Becquerel, University of Rouen, Rouen, France
| | - Emilie Lévêque
- Clinical Research Unit, Centre Henri Becquerel, Rouen, France
| | | | - David Tonnelet
- Department of Nuclear Medicine and Radiology, Centre Henri Becquerel and QuantIF (Litis EA4108 - FR CNRS 3638), Rouen, France
| | | | - Fanny Drieux
- Department of Pathology, Centre Henri Becquerel, Rouen, France
| | | | - Sydney Dubois
- Department of Hematology, Centre Henri Becquerel, Rouen, France.,INSERM U1245, Centre Henri Becquerel, University of Rouen, Rouen, France
| | - Aspasia Stamatoullas
- Department of Hematology, Centre Henri Becquerel, Rouen, France.,INSERM U1245, Centre Henri Becquerel, University of Rouen, Rouen, France
| | - Hervé Tilly
- Department of Hematology, Centre Henri Becquerel, Rouen, France.,INSERM U1245, Centre Henri Becquerel, University of Rouen, Rouen, France
| | - Elodie Bohers
- INSERM U1245, Centre Henri Becquerel, University of Rouen, Rouen, France
| | - Fabrice Jardin
- Department of Hematology, Centre Henri Becquerel, Rouen, France.,INSERM U1245, Centre Henri Becquerel, University of Rouen, Rouen, France
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10
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Identification and Expression Analysis of Zinc Finger A20/AN1 Stress-Associated Genes SmSAP Responding to Abiotic Stress in Eggplant. HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8020108] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Stress-associated proteins (SAP), a class of zinc-finger proteins, have been identified as novel stress regulatory proteins in stress responses. However, SAP genes in eggplant (SmSAP) have been little reported. It has important significance in identifying SAP members, understanding the molecular mechanisms underlying stress responses, and tolerance. We performed a comprehensive study of the A20/AN1 domains, motifs, gene structures, phylogenetic relationships, chromosomal locations, gene replications, collinearity, cis-acting elements, and expression pattern responses to various abiotic stresses. Twenty-one SAP genes were identified in eggplant (SmSAP) and were localized on 10 chromosomes. A phylogenetic analysis revealed that most of the SmSAP proteins showed a high homology with the tomato SAP members, and 21 members were divided into four groups based on the homology of the SAP members in eggplant, tomato, rice, and Arabidopsis. Further analysis revealed that SmSAP proteins contain the characteristic A20/AN1 domains, the A20 domain composed of motif 2 (ILCINNCGFFGSPATMNLCSKCYKDMJLK). Four pairs of tandem duplications were found in eggplant, and 10 SmSAP genes had collinearity with SAP genes from Arabidopsis, potato, or tomato, but only four SmSAP genes were collinear with SAP genes in the three species mentioned above. Moreover, the promoters of SmSAP genes were predicted to contain many cis-acting elements that respond to abiotic stress and hormones. A qRT-PCR analysis of the four selected SmSAP genes exhibited diverse expression levels in response to various environmental stresses. These results provided a comprehensive analysis of the SmSAP genes and lay a solid foundation for improving the understanding of the functional diversification of SAP genes under various environmental stresses in eggplant.
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11
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Wang SY, Shih YH, Shieh TM, Tseng YH. Proteasome Inhibitors Interrupt the Activation of Non-Canonical NF-κB Signaling Pathway and Induce Cell Apoptosis in Cytarabine-Resistant HL60 Cells. Int J Mol Sci 2021; 23:ijms23010361. [PMID: 35008789 PMCID: PMC8745175 DOI: 10.3390/ijms23010361] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/24/2021] [Accepted: 12/27/2021] [Indexed: 12/13/2022] Open
Abstract
Over half of older patients with acute myeloid leukemia (AML) do not respond to cytotoxic chemotherapy, and most responders relapse because of drug resistance. Cytarabine is the main drug used for the treatment of AML. Intensive treatment with high-dose cytarabine can increase the overall survival rate and reduce the relapse rate, but it also increases the likelihood of drug-related side effects. To optimize cytarabine treatment, understanding the mechanism underlying cytarabine resistance in leukemia is necessary. In this study, the gene expression profiles of parental HL60 cells and cytarabine-resistant HL60 (R-HL60) cells were compared through gene expression arrays. Then, the differential gene expression between parental HL60 and R-HL60 cells was measured using KEGG software. The expression of numerous genes associated with the nuclear factor κB (NF-κB) signaling pathway changed during the development of cytarabine resistance. Proteasome inhibitors inhibited the activity of non-canonical NF-κB signaling pathway and induced the apoptosis of R-HL60 cells. The study results support the application and possible mechanism of proteasome inhibitors in patients with relapsed or refractory leukemia.
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Affiliation(s)
- Shuo-Yu Wang
- Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan;
- Department of Pediatrics, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Yin-Hwa Shih
- Department of Healthcare Administration, Asia University, Taichung 41354, Taiwan;
| | - Tzong-Ming Shieh
- School of Dentistry, China Medical University, Taichung 40402, Taiwan;
- Department of Dental Hygiene, China Medical University, Taichung 40402, Taiwan
| | - Yu-Hsin Tseng
- Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan;
- Correspondence: ; Tel.: +88-673-121-101 (ext. 6356)
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Sørensen MD, Kristensen BW. TUMOUR-ASSOCIATED CD204+ MICROGLIA/MACROPHAGES ACCUMULATE IN PERIVASCULAR AND PERINECROTIC NICHES AND CORRELATE WITH AN INTERLEUKIN-6 ENRICHED INFLAMMATORY PROFILE IN GLIOBLASTOMA. Neuropathol Appl Neurobiol 2021; 48:e12772. [PMID: 34713474 PMCID: PMC9306597 DOI: 10.1111/nan.12772] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 09/30/2021] [Accepted: 10/25/2021] [Indexed: 11/29/2022]
Affiliation(s)
- Mia Dahl Sørensen
- Department of Pathology, Odense University Hospital, Odense, Denmark.,Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Bjarne Winther Kristensen
- Department of Pathology, Odense University Hospital, Odense, Denmark.,Department of Clinical Research, University of Southern Denmark, Odense, Denmark.,Department of Pathology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.,Department of Clinical Medicine and Biotech Research and Innovation Center (BRIC), University of Copenhagen, Copenhagen, Denmark
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13
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NLRP3 Ubiquitination-A New Approach to Target NLRP3 Inflammasome Activation. Int J Mol Sci 2021; 22:ijms22168780. [PMID: 34445484 PMCID: PMC8395773 DOI: 10.3390/ijms22168780] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/08/2021] [Accepted: 08/10/2021] [Indexed: 02/08/2023] Open
Abstract
In response to diverse pathogenic and danger signals, the cytosolic activation of the NLRP3 (NOD-, LRR-, and pyrin domain-containing (3)) inflammasome complex is a critical event in the maturation and release of some inflammatory cytokines in the state of an inflammatory response. After activation of the NLRP3 inflammasome, a series of cellular events occurs, including caspase 1-mediated proteolytic cleavage and maturation of the IL-1β and IL-18, followed by pyroptotic cell death. Therefore, the NLRP3 inflammasome has become a prime target for the resolution of many inflammatory disorders. Since NLRP3 inflammasome activation can be triggered by a wide range of stimuli and the activation process occurs in a complex, it is difficult to target the NLRP3 inflammasome. During the activation process, various post-translational modifications (PTM) of the NLRP3 protein are required to form a complex with other components. The regulation of ubiquitination and deubiquitination of NLRP3 has emerged as a potential therapeutic target for NLRP3 inflammasome-associated inflammatory disorders. In this review, we discuss the ubiquitination and deubiquitination system for NLRP3 inflammasome activation and the inhibitors that can be used as potential therapeutic agents to modulate the activation of the NLRP3 inflammasome.
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14
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Socha K, Karwowska A, Kurianiuk A, Markiewicz-Żukowska R, Guzowski A, Gacko M, Hirnle T, Borawska MH. Estimation of Selected Minerals in Aortic Aneurysms-Impaired Ratio of Zinc to Lead May Predispose? Biol Trace Elem Res 2021; 199:2811-2818. [PMID: 33006035 PMCID: PMC8222018 DOI: 10.1007/s12011-020-02410-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 09/23/2020] [Indexed: 12/04/2022]
Abstract
The objective of this study was to estimate the content of copper, zinc, selenium, cadmium, and lead in the tissue of patients with aortic aneurysms. Molar ratio of Cu/Zn and antioxidant micronutrients to toxic elements was also calculated. A total of 108 patients: 47 with abdominal aortic aneurysm (AAA), 61 patients with thoracic aortic aneurysm (TAA), and a control group of 20 abdominal aortic (AA) and 20 thoracic aortic (TA) wall samples from the deceased were studied. The concentrations of mineral components in the tissue samples were determined by the AAS method. The average concentration of Cu in the aortic wall of patients with TAA was significantly lower than in the aortic wall samples of healthy people. The mean concentration of Zn in the aortic wall of patients with AAA and TAA was significantly lower than in the control group samples. Cu/Zn ratio was significantly higher in AAA patients than in control group which indicates a greater role of oxidative stress and inflammatory process in this type of aneurysm. The concentration of Se was significantly decreased in TAA patients compared with the control group; in turn, the concentration of Pb was increased in this group of patients. We observed significantly lower Cu/Pb ratio in TAA patients than in control group, whereas Zn/Pb ratio was significantly lower comparing with control samples in both types of aneurysms. In the examined aneurysms, we have shown the differences in concentrations of mineral components compared with the control tissues. The Zn concentration was decreased in both AAA and TAA samples. Impaired ratio of Zn to Pb may predispose to aortic aneurysms.
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Affiliation(s)
- Katarzyna Socha
- Department of Bromatology, Medical University of Bialystok, Bialystok, Poland.
| | - Alicja Karwowska
- Department of Hygiene, Epidemiology and Metabolic Disorders, Medical University of Bialystok, Bialystok, Poland
| | - Adam Kurianiuk
- Department of Hygiene, Epidemiology and Metabolic Disorders, Medical University of Bialystok, Bialystok, Poland
| | | | - Andrzej Guzowski
- Department of Vascular Surgery and Transplantation, Medical University of Bialystok, Bialystok, Poland
| | - Marek Gacko
- Department of Vascular Surgery and Transplantation, Medical University of Bialystok, Bialystok, Poland
| | - Tomasz Hirnle
- Department of Cardiosurgery, Medical University of Bialystok, Bialystok, Poland
| | - Maria H Borawska
- Department of Bromatology, Medical University of Bialystok, Bialystok, Poland
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15
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Deng HJ, Deji Q, Zhaba W, Liu JQ, Gao SQ, Han YL, Zhou ML, Wang CX. A20 Establishes Negative Feedback With TRAF6/NF-κB and Attenuates Early Brain Injury After Experimental Subarachnoid Hemorrhage. Front Immunol 2021; 12:623256. [PMID: 34381441 PMCID: PMC8350325 DOI: 10.3389/fimmu.2021.623256] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 04/09/2021] [Indexed: 11/13/2022] Open
Abstract
Nuclear factor (NF)-κB-ty -50mediated neuroinflammation plays a crucial role in early brain injury (EBI) after subarachnoid hemorrhage (SAH). As an important negative feedback regulator of NF-κB, A20 is essential for inflammatory homeostasis. Herein, we tested the hypothesis that A20 attenuates EBI by establishing NF-κB-associated negative feedback after experimental SAH. In vivo and in vitro models of SAH were established. TPCA-1 and lentivirus were used for NF-κB inhibition and A20 silencing/overexpression, respectively. Cellular localization of A20 in the brain was determined via immunofluorescence. Western blotting and enzyme-linked immunosorbent assays were applied to observe the expression of members of the A20/tumor necrosis factor receptor-associated factor 6 (TRAF6)/NF-κB pathway and inflammatory cytokines (IL-6, IL-1β, TNF-α). Evans blue staining, TUNEL staining, Nissl staining, brain water content, and modified Garcia score were performed to evaluate the neuroprotective effect of A20. A20 expression by astrocytes, microglia, and neurons was increased at 24 h after SAH. A20 and inflammatory cytokine levels were decreased while TRAF6 expression was elevated after NF-κB inhibition. TRAF6, NF-κB, and inflammatory cytokine levels were increased after A20 silencing but suppressed with A20 overexpression. Also, Bcl-2, Bax, MMP-9, ZO-1 protein levels; Evans blue, TUNEL, and Nissl staining; brain water content; and modified Garcia score showed that A20 exerted a neuroprotective effect after SAH. A20 expression was regulated by NF-κB. In turn, increased A20 expression inhibited TRAF6 and NF-κB to reduce the subsequent inflammatory response. Our data also suggest that negative feedback regulation mechanism of the A20/TRAF6/NF-κB pathway and the neuroprotective role of A20 to attenuate EBI after SAH.
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Affiliation(s)
- Hong-Ji Deng
- Department of Neurosurgery, The First Affiliated Hospital, Guangxi Medical University, Nanning, China
| | - QuZhen Deji
- Department of Ophthalmology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - WangDui Zhaba
- Department of Neurosurgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jia-Qiang Liu
- Department of Neurosurgery, Yijishan Hospital, Wannan Medical College, Wuhu, China
| | - Sheng-Qing Gao
- Department of Neurosurgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Yan-Ling Han
- Department of Neurosurgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Meng-Liang Zhou
- Department of Neurosurgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Chun-Xi Wang
- Department of Neurosurgery, The First Affiliated Hospital, Guangxi Medical University, Nanning, China
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Shi Z, Dun B, Wei Z, Liu C, Tian J, Ren G, Yao Y. Peptides Released from Extruded Adzuki Bean Protein through Simulated Gastrointestinal Digestion Exhibit Anti-inflammatory Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:7028-7036. [PMID: 34138556 DOI: 10.1021/acs.jafc.1c01712] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Increasing attention has been focused on plant-derived peptides because of their potential bioactivities. In this study, bioactive peptides were released from extruded adzuki bean protein by simulated gastrointestinal digestion. A peptide (KQS-1) sequenced as KQSESHFVDAQPEQQQR was separated and identified using ultrafiltration, pre-high-performance liquid chromatography (HPLC), and ultraperformance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). KQS-1 was shown to exert significant anti-inflammatory effects in lipopolysaccharide (LPS)-induced RAW 264.7 macrophages by reducing the production of IL-1, IL-6, TNF-α, and MCP-1 to 38.31, 6.07, 43.96, and 41.74%, respectively. The involved signaling pathways were identified by transcriptome analysis. Overall, 5236 differentially expressed genes (DEGs) were identified. Gene ontology (GO) functions demonstrated that DEGs were significantly related to the NF-κB pathway. In conclusion, KQS-1 prevented the activation and expression of NF-κB/caspase-1 by upstream and downstream factors. These findings highlight the bioactivity of adzuki bean peptides.
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Affiliation(s)
- Zhenxing Shi
- Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS), 80 South Xueyuan Road, Haidian District, Beijing 100081, People's Republic of China
| | - Baoqing Dun
- Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS), 80 South Xueyuan Road, Haidian District, Beijing 100081, People's Republic of China
| | - Zuchen Wei
- Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS), 80 South Xueyuan Road, Haidian District, Beijing 100081, People's Republic of China
- Laboratory for Green Cultivation and Deep Processing of Three Gorges Reservoir Area's Medicinal Herbs, College of Life Science & Engineering, The Chongqing Engineering, Chongqing Three Gorges University, No. 666 Tianxing Road, Wanzhou District, Chongqing 404000, People's Republic of China
| | - Changyou Liu
- Institute of Cereal and Oil Crops, Hebei Academy of Agricultural and Forestry Sciences/Hebei Laboratory of Crop Genetic and Breeding, Shijiazhuang 050035, Hebei, People's Republic of China
| | - Jing Tian
- Institute of Cereal and Oil Crops, Hebei Academy of Agricultural and Forestry Sciences/Hebei Laboratory of Crop Genetic and Breeding, Shijiazhuang 050035, Hebei, People's Republic of China
| | - Guixing Ren
- Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS), 80 South Xueyuan Road, Haidian District, Beijing 100081, People's Republic of China
| | - Yang Yao
- Institute of Crop Science, Chinese Academy of Agricultural Sciences (CAAS), 80 South Xueyuan Road, Haidian District, Beijing 100081, People's Republic of China
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Imgenberg-Kreuz J, Rasmussen A, Sivils K, Nordmark G. Genetics and epigenetics in primary Sjögren's syndrome. Rheumatology (Oxford) 2021; 60:2085-2098. [PMID: 30770922 PMCID: PMC8121440 DOI: 10.1093/rheumatology/key330] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 09/16/2018] [Indexed: 02/07/2023] Open
Abstract
Primary Sjögren’s syndrome (pSS) is considered to be a multifactorial disease, where underlying genetic predisposition, epigenetic mechanisms and environmental factors contribute to disease development. In the last 5 years, the first genome-wide association studies in pSS have been completed. The strongest signal of association lies within the HLA genes, whereas the non-HLA genes IRF5 and STAT4 show consistent associations in multiple ethnicities but with a smaller effect size. The majority of the genetic risk variants are found at intergenic regions and their functional impact has in most cases not been elucidated. Epigenetic mechanisms such as DNA methylation, histone modifications and non-coding RNAs play a role in the pathogenesis of pSS by their modulating effects on gene expression and may constitute a dynamic link between the genome and phenotypic manifestations. This article reviews the hitherto published genetic studies and our current understanding of epigenetic mechanisms in pSS.
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Affiliation(s)
- Juliana Imgenberg-Kreuz
- Department of Medical Sciences, Rheumatology and Science for Life Laboratory, Uppsala University, Uppsala, Sweden2Arthritis and Clinical Immunology Research Program, Division of Genomics and Data Sciences, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Astrid Rasmussen
- Department of Medical Sciences, Rheumatology and Science for Life Laboratory, Uppsala University, Uppsala, Sweden2Arthritis and Clinical Immunology Research Program, Division of Genomics and Data Sciences, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Kathy Sivils
- Department of Medical Sciences, Rheumatology and Science for Life Laboratory, Uppsala University, Uppsala, Sweden2Arthritis and Clinical Immunology Research Program, Division of Genomics and Data Sciences, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Gunnel Nordmark
- Department of Medical Sciences, Rheumatology and Science for Life Laboratory, Uppsala University, Uppsala, Sweden2Arthritis and Clinical Immunology Research Program, Division of Genomics and Data Sciences, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
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18
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Sumner W, Ray X, Sutton L, Rebibo D, Marincola F, Sanghvi P, Moiseenko V, Deichaite I. Gene alterations as predictors of radiation-induced toxicity in head and neck squamous cell carcinoma. J Transl Med 2021; 19:212. [PMID: 34001187 PMCID: PMC8130372 DOI: 10.1186/s12967-021-02876-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 05/05/2021] [Indexed: 01/02/2023] Open
Abstract
Background Optimizing the therapeutic ratio for radiation therapy (RT) in head and neck squamous cell carcinoma (HNSCC) is uniquely challenging owing to high rates of early and late toxicity involving nearby organs at risk. These toxicities have a profound impact on treatment compliance and quality of life. Emerging evidence suggests that RT dose alone cannot fully account for the variable severity of RT-related adverse events (rtAEs) observed in HNSCC patients. Next-generation sequencing has become an increasingly valuable tool with widespread use in the oncology field and is being robustly explored for predicting rtAEs beyond dosimetric data. Methods Patients who had Foundation Medicine sequencing data and received RT for primary or locally recurrent HNSCC were selected for this study. Early and late toxicity data were collected and reported based on Common Terminology Criteria for Adverse Events version 5.0. Dosimetric parameters were collected for pertinent structures. Results A total of HNSCC 37 patients were analyzed in this study. Genetic alterations in BRCA2, ERBB3, NOTCH1 and CCND1 were all associated with higher mean grade of toxicity with BRCA2 alteration implicated in all toxicity parameters evaluated including mucositis, early dysphagia, xerostomia and to a lesser extent, late dysphagia. Interestingly, patients who exhibited alterations in both BRCA2 and ERBB3 experienced a twofold or greater increase in early dysphagia, early xerostomia and late dysphagia compared to ERBB3 alteration alone. Furthermore, several gene alterations were associated with improved toxicity outcomes. Within an RT supersensitive patient subset, alterations were found in TNFAIP3, HNF1A, SPTA1 and CASP8. All of these alterations were not found in the RT insensitive patient subset. We found 17 gene alterations in the RT insensitive patient subset that were not found in the RT supersensitive patient subset. Conclusion Despite consistent RT dosimetric parameters, patients with HNSCC experience heterogeneous patterns of rtAEs. Identifying factors associated with toxicity outcomes offers a new avenue for personalized precision RT therapy and prophylactic management. Here, next-generation sequencing in a population of HNSCC patients correlates several genetic alterations with severity of rtAEs. Further analysis is urgently needed to identify genetic patterns associated with rtAEs in order to reduce harmful outcomes in this challenging population. Supplementary Information The online version contains supplementary material available at 10.1186/s12967-021-02876-5.
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Affiliation(s)
- Whitney Sumner
- Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, CA, USA
| | - Xenia Ray
- Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, CA, USA
| | - Leisa Sutton
- Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
| | - Daniel Rebibo
- Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
| | | | - Parag Sanghvi
- Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, CA, USA
| | - Vitali Moiseenko
- Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, CA, USA
| | - Ida Deichaite
- Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, CA, USA. .,Moores Cancer Center, University of California San Diego, La Jolla, CA, USA.
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19
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Nam SW, Lee KS, Yang JW, Ko Y, Eisenhut M, Lee KH, Shin JI, Kronbichler A. Understanding the genetics of systemic lupus erythematosus using Bayesian statistics and gene network analysis. Clin Exp Pediatr 2021; 64:208-222. [PMID: 32683804 PMCID: PMC8103040 DOI: 10.3345/cep.2020.00633] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 06/23/2020] [Indexed: 02/07/2023] Open
Abstract
The publication of genetic epidemiology meta-analyses has increased rapidly, but it has been suggested that many of the statistically significant results are false positive. In addition, most such meta-analyses have been redundant, duplicate, and erroneous, leading to research waste. In addition, since most claimed candidate gene associations were false-positives, correctly interpreting the published results is important. In this review, we emphasize the importance of interpreting the results of genetic epidemiology meta-analyses using Bayesian statistics and gene network analysis, which could be applied in other diseases.
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Affiliation(s)
- Seoung Wan Nam
- Department of Rheumatology, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Kwang Seob Lee
- Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Jae Won Yang
- Department of Nephrology, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Younhee Ko
- Division of Biomedical Engineering, Hankuk University of Foreign Studies, Yongin, Korea
| | - Michael Eisenhut
- Department of Pediatrics, Luton & Dunstable University Hospital NHS Foundation Trust, Luton, UK
| | - Keum Hwa Lee
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea.,Division of Pediatric Nephrology, Severance Children's Hospital, Seoul, Korea.,Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, Korea
| | - Jae Il Shin
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea.,Division of Pediatric Nephrology, Severance Children's Hospital, Seoul, Korea.,Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, Korea
| | - Andreas Kronbichler
- Department of Internal Medicine IV (Nephrology and Hypertension), Medical University Innsbruck, Innsbruck, Austria
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Choi J, Jo M, Lee E, Lee DY, Choi D. Nuclear factor-kappa B signaling in endometriotic stromal cells is not inhibited by progesterone owing to an aberrant endoplasmic reticulum stress response: a possible role for an altered inflammatory process in endometriosis. Mol Hum Reprod 2021; 27:6122436. [PMID: 33507306 DOI: 10.1093/molehr/gaab002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/29/2020] [Indexed: 12/20/2022] Open
Abstract
Endoplasmic reticulum (ER) stress serves as a key modulator of the inflammatory response by controlling nuclear factor-kappaB (NF-κB) signaling. Previous studies from our laboratory have reported an abnormal induction of ER stress linked to progesterone resistance in human endometriotic cells. Therefore, an aberrant ER stress response to progesterone might contribute to the altered inflammatory response observed in endometriotic tissues. To evaluate this hypothesis, we investigated whether ER stress is involved in regulation of NF-κB in endometrial stromal cells and whether induction of aberrant ER stress in endometriotic stromal cells affects pro-inflammatory cytokine production. We found that tunicamycin-induced ER stress inhibited NF-κB activation and pro-inflammatory cytokine (IL-6 and COX2) production in TNF-α- or IL-1β-treated normal endometrial stromal cells (NECSs). Tunicamycin increased the expression of A20 and C/EBPβ, which are negative regulators of NF-κB, and this increase inhibited NF-κB activity in NESCs incubated with TNF-α or IL-1β. Similarly, progesterone increased A20 and C/EBPβ expression through upregulation of ER stress in NESCs, resulting in inhibition of NF-κB activity and IL-6 and COX2 production. However, progesterone had no significant effects on induction of ER stress, A20 or C/EBPβ expression, NF-κB activity or IL-6 or COX2 production in ovarian endometriotic cyst stromal cells (ECSCs). In contrast, upregulation of ER stress by tunicamycin significantly reduced IL-6 and COX2 production by inhibiting NF-κB activity in ECSCs. In conclusion, our results suggest that NF-κB activity in endometriotic stromal cells was not inhibited because of an aberrant ER stress response to progesterone, resulting in an increase in pro-inflammatory cytokine production.
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Affiliation(s)
- JongYeob Choi
- Infertility Clinic, Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
| | - MinWha Jo
- Center for Clinical Research, Samsung Biomedical Research Institute, Seoul 06351, Korea
| | - EunYoung Lee
- Infertility Clinic, Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
| | - Dong-Yun Lee
- Infertility Clinic, Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
| | - DooSeok Choi
- Infertility Clinic, Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
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Dietary Soy Saponin Improves Antioxidant and Immune Function of Layer Hens. J Poult Sci 2021; 59:197-205. [PMID: 35989694 PMCID: PMC9346601 DOI: 10.2141/jpsa.0210073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Accepted: 10/14/2021] [Indexed: 11/21/2022] Open
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NF-κB Activation Accounts for the Cytoprotective Effects of PERK Activation on Oligodendrocytes during EAE. J Neurosci 2020; 40:6444-6456. [PMID: 32661025 DOI: 10.1523/jneurosci.1156-20.2020] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/22/2020] [Accepted: 06/30/2020] [Indexed: 01/09/2023] Open
Abstract
Previous studies demonstrate that activation of pancreatic ER kinase (PERK) protects oligodendrocytes against inflammation in the experimental autoimmune encephalomyelitis (EAE) model of multiple sclerosis (MS). Interestingly, data indicate that the cytoprotective effects of PERK activation on oligodendrocytes during EAE are not mediated by activating transcription factor 4 (ATF4) but are accompanied by activation of nuclear factor κB (NF-κB). NF-κB plays a critical role in MS and EAE; however, the effects of NF-κB activation on oligodendrocytes in these diseases remain elusive. Herein, we generated a mouse model that allow for activation of NF-κB specifically in oligodendrocytes and found that enhanced NF-κB activation in oligodendrocytes had a minimal effect on their viability and function under normal conditions (both male and female mice). Interestingly, we found that enhanced NF-κB activation in oligodendrocytes attenuated EAE disease severity and ameliorated EAE-induced oligodendrocyte loss, demyelination, and axon degeneration, without affecting inflammation (female mice). Moreover, we showed that the detrimental effects of PERK inactivation in oligodendrocytes in EAE were accompanied by impaired NF-κB activation in oligodendrocytes, and were completely rescued by enhanced NF-κB activation in oligodendrocytes (female mice). These findings suggest that NF-κB activation accounts for the cytoprotective effects of PERK activation on oligodendrocytes in MS and EAE.SIGNIFICANCE STATEMENT Nuclear factor κB (NF-κB) is activated in oligodendrocytes in multiple sclerosis (MS) and its animal model experimental autoimmune encephalomyelitis (EAE); however, the role of NF-κB activation in oligodendrocytes in MS and EAE remains elusive. Herein, we generated a mouse model that allows for activation of NF-κB selectively in oligodendrocytes and demonstrated that NF-κB activation prevented oligodendrocyte death and myelin damage in the EAE model. We further demonstrated that NF-κB activation contributed to the protective effects of pancreatic ER kinase (PERK) activation on oligodendrocytes in the EAE model. As such, this work will facilitate the development of new treatments that enhance oligodendrocyte survival in MS patients by targeting the PERK-NF-κB pathway.
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Herbs-partitioned moxibustion improves intestinal epithelial tight junctions by upregulating A20 expression in a mouse model of Crohn’s disease. Biomed Pharmacother 2019; 118:109149. [DOI: 10.1016/j.biopha.2019.109149] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 06/09/2019] [Accepted: 06/17/2019] [Indexed: 02/06/2023] Open
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Inhibition of transmembrane TNF-α shedding by a specific antibody protects against septic shock. Cell Death Dis 2019; 10:586. [PMID: 31383857 PMCID: PMC6683172 DOI: 10.1038/s41419-019-1808-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 07/12/2019] [Accepted: 07/12/2019] [Indexed: 01/21/2023]
Abstract
Transmembrane TNF-α (tmTNF-α) and secretory TNF-α (sTNF-α) display opposite effects in septic shock. Reducing tmTNF-α shedding can offset the detrimental effects of sTNF-α and increase the beneficial effect of tmTNF-α. We previously developed a monoclonal antibody that is specific for tmTNF-α and does not cross-react with sTNF-α. In this study, we show that this antibody can specifically suppress tmTNF-α shedding by competing with a TNF-α converting enzyme that cleaves the tmTNF-α ectodomain to release sTNF-α. This tmTNF-α antibody significantly inhibited LPS-induced secretion of interleukin (IL)-1β, IL-6, interferon-β, and nitric oxide by monocytes/macrophages, and protected mice from septic shock induced by lipopolysaccharide (LPS) or cecal ligation and puncture, while reducing the bacterial load. The mechanism associated with the protective effect of this tmTNF-α antibody involved promotion of LPS-induced toll-like receptor 4 (TLR4) internalization and degradation by recruiting Triad3A to TLR4. Moreover, the tmTNF-α antibody inhibited LPS-induced activation of nuclear factor-κB and interferon regulatory factor 3 pathways by upregulating expression of A20 and monocyte chemotactic protein-induced protein 1. Similarly, treatment of macrophages with exogenous tmTNF-α suppressed LPS/TLR4 signaling and release of proinflammatory cytokines, indicating that increased levels of tmTNF-α promoted by the antibody contributed to its inhibitory effect. Thus, use of this tmTNF-α antibody for specific suppression of tmTNF-α shedding may be a promising strategy to treat septic shock.
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Haploinsufficiency of A20 and other paediatric inflammatory disorders with mucosal involvement. Curr Opin Rheumatol 2019; 30:506-513. [PMID: 29916847 DOI: 10.1097/bor.0000000000000532] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
PURPOSE OF REVIEW This review aims at summarizing the current knowledge of A20 haploinsufficiency and other paediatric inflammatory disorders with mucosal involvement. RECENT FINDINGS A20 haploinsufficiency is a newly described autoinflammatory disease caused by loss-of-function mutations in TNFAIP3 that result in the activation of the nuclear factor (NF)-kB pathway. Patients may present with dominantly inherited, early-onset systemic inflammation and a Behçet-like disease, or a variety of autoinflammatory and autoimmune features. In Behçet disease, recent literature provides insights into genetic susceptibility and emerging treatment options; in addition, the first paediatric classification criteria were published. Recent advances in periodic fever, aphthous stomatitis, pharyngitis and adenitis syndrome (PFAPA) suggest that the disease has a complex underlying genetic mechanism and in some cases is inherited in an autosomal dominant pattern with reduced penetrance phenotype in many family members. Activation of the pyrin inflammasome through the RoA signalling pathway uncovers an interesting molecular connection between hyperimmunoglobulinemia D syndrome and familial Mediterranean fever. The description of new monogenic types of inflammatory bowel disease (IBD) may provide novel insights into disease pathogenesis. Finally, recent studies highlighted the role of gut microorganisms and dysbiosis in IBD. SUMMARY Monogenic diseases such as A20 haploinsufficiency may help to advance our understanding of disease pathogenesis and to develop targeted therapies for more common, multifactorial disorders with mucosal inflammation.
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Prasad AS, Bao B. Molecular Mechanisms of Zinc as a Pro-Antioxidant Mediator: Clinical Therapeutic Implications. Antioxidants (Basel) 2019; 8:antiox8060164. [PMID: 31174269 PMCID: PMC6617024 DOI: 10.3390/antiox8060164] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 05/21/2019] [Accepted: 05/27/2019] [Indexed: 02/07/2023] Open
Abstract
The essentiality of zinc as a trace mineral in human health has been recognized for over five decades. Zinc deficiency, caused by diet, genetic defects, or diseases, can cause growth retardation, delayed sexual maturation, depressed immune response, and abnormal cognitive functions in humans. Zinc supplementation in zinc-deficient individuals can overcome or attenuate these abnormalities, suggesting zinc is an essential micro-nutrient in the body. A large number of in vitro and in vivo experimental studies indicate that zinc deficiency also causes apoptosis, cellular dysfunction, deoxyribonucleic acid (DNA) damage, and depressed immune response. Oxidative stress, due to the imbalance of reactive oxygen species (ROS) production and detoxification in the anti-oxidant defense system of the body, along with subsequent chronic inflammation, is believed to be associated with many chronic degenerative diseases such as diabetes, heart diseases, cancers, alcohol-related disease, macular degenerative disease, and neuro-pathogenesis. A large number of experimental studies including cell culture, animal, and human clinical studies have provided supportive evidence showing that zinc acts as an anti-oxidative stress agent by inhibition of oxidation of macro-molecules such as (DNA)/ribonucleic acid (RNA) and proteins as well as inhibition of inflammatory response, eventually resulting in the down-regulation of (ROS) production and the improvement of human health. In this article, we will discuss the molecular mechanisms of zinc as an anti-oxidative stress agent or mediator in the body. We will also discuss the applications of zinc supplementation as an anti-oxidative stress agent or mediator in human health and disease.
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Affiliation(s)
- Ananda S Prasad
- Department of Oncology, School of Medicine, Wayne State University and Karmanos Cancer Center, Detroit, MI 48201, USA.
| | - Bin Bao
- Department of Oncology, School of Medicine, Wayne State University and Karmanos Cancer Center, Detroit, MI 48201, USA.
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Liu S, Yuan X, Wang Y, Wang H, Wang J, Shen Z, Gao Y, Cai J, Li D, Song F. Tomato Stress-Associated Protein 4 Contributes Positively to Immunity Against Necrotrophic Fungus Botrytis cinerea. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2019; 32:566-582. [PMID: 30589365 DOI: 10.1094/mpmi-04-18-0097-r] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Stress-associated proteins (SAPs) are A20 and AN1 domain-containing proteins, some of which play important roles in plant stress signaling. Here, we report the involvement of tomato SlSAP family in immunity. SlSAPs responded with different expression patterns to Botrytis cinerea and defense signaling hormones. Virus-induced gene silencing of each of the SlSAP genes and disease assays revealed that SlSAP4 and SlSAP10 play roles in immunity against B. cinerea. Silencing of SlSAP4 resulted in attenuated immunity to B. cinerea, accompanying increased accumulation of reactive oxygen species and downregulated expression of jasmonate and ethylene (JA/ET) signaling-responsive defense genes. Transient expression of SlSAP4 in Nicotiana benthamiana led to enhanced resistance to B. cinerea. Exogenous application of methyl jasmonate partially restored the resistance of the SlSAP4-silenced plants against B. cinerea. SlSAP4 interacted with three of four SlRAD23 proteins. The A20 domain in SlSAP4 and the Ub-associated domains in SlRAD23d are critical for SlSAP4-SlRAD23d interaction. Silencing of SlRAD23d led to decreased resistance to B. cinerea, but silencing of each of other SlRAD23s did not affect immunity against B. cinerea. Furthermore, silencing of SlSAP4 and each of the SlRAD23s did not affect immunity to Pseudomonas syringae pv. tomato DC3000. These data suggest that SlSAP4 contributes positively to tomato immunity against B. cinereal through affecting JA/ET signaling and may be involved in the substrate ubiquitination process via interacting with SlRAD23d.
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Affiliation(s)
- Shixia Liu
- National Key Laboratory for Rice Biology and Key Laboratory of Crop Diseases and Insect Pests of Ministry of Agriculture, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, P. R. China
| | - Xi Yuan
- National Key Laboratory for Rice Biology and Key Laboratory of Crop Diseases and Insect Pests of Ministry of Agriculture, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, P. R. China
| | - Yuyan Wang
- National Key Laboratory for Rice Biology and Key Laboratory of Crop Diseases and Insect Pests of Ministry of Agriculture, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, P. R. China
| | - Hui Wang
- National Key Laboratory for Rice Biology and Key Laboratory of Crop Diseases and Insect Pests of Ministry of Agriculture, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, P. R. China
| | - Jiali Wang
- National Key Laboratory for Rice Biology and Key Laboratory of Crop Diseases and Insect Pests of Ministry of Agriculture, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, P. R. China
| | - Zhihui Shen
- National Key Laboratory for Rice Biology and Key Laboratory of Crop Diseases and Insect Pests of Ministry of Agriculture, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, P. R. China
| | - Yizhou Gao
- National Key Laboratory for Rice Biology and Key Laboratory of Crop Diseases and Insect Pests of Ministry of Agriculture, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, P. R. China
| | - Jiating Cai
- National Key Laboratory for Rice Biology and Key Laboratory of Crop Diseases and Insect Pests of Ministry of Agriculture, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, P. R. China
| | - Dayong Li
- National Key Laboratory for Rice Biology and Key Laboratory of Crop Diseases and Insect Pests of Ministry of Agriculture, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, P. R. China
| | - Fengming Song
- National Key Laboratory for Rice Biology and Key Laboratory of Crop Diseases and Insect Pests of Ministry of Agriculture, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, P. R. China
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Vivino FB, Bunya VY, Massaro-Giordano G, Johr CR, Giattino SL, Schorpion A, Shafer B, Peck A, Sivils K, Rasmussen A, Chiorini JA, He J, Ambrus JL. Sjogren's syndrome: An update on disease pathogenesis, clinical manifestations and treatment. Clin Immunol 2019; 203:81-121. [PMID: 31022578 DOI: 10.1016/j.clim.2019.04.009] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 04/19/2019] [Indexed: 12/23/2022]
Affiliation(s)
- Frederick B Vivino
- Penn Sjögren's Center, Penn Presbyterian Medical Center, University of Pennsylvania Perelman School of Medicine, 3737 Market Street, Philadelphia, PA 19104, USA.
| | - Vatinee Y Bunya
- Scheie Eye Institute, University of Pennsylvania Perelman School of Medicine, 51 N. 39(th) Street, Philadelphia, PA 19104, USA.
| | - Giacomina Massaro-Giordano
- Scheie Eye Institute, University of Pennsylvania Perelman School of Medicine, 51 N. 39(th) Street, Philadelphia, PA 19104, USA.
| | - Chadwick R Johr
- Penn Sjögren's Center, Penn Presbyterian Medical Center, University of Pennsylvania Perelman School of Medicine, 3737 Market Street, Philadelphia, PA 19104, USA.
| | - Stephanie L Giattino
- Penn Sjögren's Center, Penn Presbyterian Medical Center, University of Pennsylvania Perelman School of Medicine, 3737 Market Street, Philadelphia, PA 19104, USA.
| | - Annemarie Schorpion
- Penn Sjögren's Center, Penn Presbyterian Medical Center, University of Pennsylvania Perelman School of Medicine, 3737 Market Street, Philadelphia, PA 19104, USA.
| | - Brian Shafer
- Scheie Eye Institute, University of Pennsylvania Perelman School of Medicine, 51 N. 39(th) Street, Philadelphia, PA 19104, USA.
| | - Ammon Peck
- Department of Infectious Diseases and Immunology, University of Florida College of Veterinary Medicine, PO Box 100125, Gainesville, FL 32610, USA.
| | - Kathy Sivils
- Oklahoma Medical Research Foundation, Arthritis and Clinical Immunology Program, 825 NE 13th Street, OK 73104, USA.
| | - Astrid Rasmussen
- Oklahoma Medical Research Foundation, Arthritis and Clinical Immunology Program, 825 NE 13th Street, OK 73104, USA.
| | - John A Chiorini
- NIH, Adeno-Associated Virus Biology Section, National Institute of Dental and Craniofacial Research, Building 10, Room 1n113, 10 Center DR Msc 1190, Bethesda, MD 20892-1190, USA.
| | - Jing He
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing 100044, China
| | - Julian L Ambrus
- Division of Allergy, Immunology and Rheumatology, SUNY at Buffalo School of Medicine, 100 High Street, Buffalo, NY 14203, USA.
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Transcriptional and epigenetic regulation of immune tolerance: roles of the NF-κB family members. Cell Mol Immunol 2019; 16:315-323. [PMID: 30872809 DOI: 10.1038/s41423-019-0202-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 01/15/2019] [Indexed: 01/06/2023] Open
Abstract
Immune tolerance is a highly regulated state and involves diverse mechanisms. Central to the induction of tolerance is the targeted modulation of T-cell activities (both effector and regulatory), in which transcription factors play a significant role. The nuclear factor kappa-B (NF-κB) family is a family of transcription factors that not only are critically involved in diverse T-cell responses but also are regulated by many mechanisms to maintain tolerance and T-cell homeostasis. NF-κB, as a transcription factor, has been extensively studied in recent decades, and the molecular mechanisms that regulate NF-κB activities have been well documented. However, recent studies have revealed exciting new roles for NF-κB; in addition to its transcriptional activity, NF-κB can also activate diverse epigenetic mechanisms that mediate extensive chromatin remodeling of target genes to regulate T-cell activities. In this review article, we highlight recent discoveries and emerging opportunities in targeting NF-κB family members as well as their associated chromatin modifiers in the induction of immune tolerance and in the clinical treatment of immune diseases.
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Zhang XZ, Zheng WJ, Cao XY, Cui XY, Zhao SP, Yu TF, Chen J, Zhou YB, Chen M, Chai SC, Xu ZS, Ma YZ. Genomic Analysis of Stress Associated Proteins in Soybean and the Role of GmSAP16 in Abiotic Stress Responses in Arabidopsis and Soybean. FRONTIERS IN PLANT SCIENCE 2019; 10:1453. [PMID: 31803204 PMCID: PMC6876671 DOI: 10.3389/fpls.2019.01453] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 10/18/2019] [Indexed: 05/22/2023]
Abstract
Stress associated proteins (SAPs) containing A20/AN1 zinc finger domains have emerged as novel regulators of stress responses. In this study, 27 SAP genes were identified in soybean. The phylogenetic relationships, exon-intron structure, domain structure, chromosomal localization, putative cis-acting elements, and expression patterns of SAPs in various tissues under abiotic stresses were analyzed. Among the soybean SAP genes, GmSAP16 was significantly induced by water deficit stress, salt, and abscisic acid (ABA) and selected for further analysis. GmSAP16 was located in the nucleus and cytoplasm. The overexpression of GmSAP16 in Arabidopsis improved drought and salt tolerance at different developmental stages and increased ABA sensitivity, as indicated by delayed seed germination and stomatal closure. The GmSAP16 transgenic Arabidopsis plants had a higher proline content and a lower water loss rate and malondialdehyde (MDA) content than wild type (WT) plants in response to stresses. The overexpression of GmSAP16 in soybean hairy roots enhanced drought and salt tolerance of soybean seedlings, with higher proline and chlorophyll contents and a lower MDA content than WT. RNA inference (RNAi) of GmSAP16 increased stress sensitivity. Stress-related genes, including GmDREB1B;1, GmNCED3, GmRD22, GmDREB2, GmNHX1, and GmSOS1, showed significant expression alterations in GmSAP16-overexpressing and RNAi plants under stress treatments. These results indicate that soybean SAP genes play important roles in abiotic stress responses.
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Affiliation(s)
- Xiang-Zhan Zhang
- College of Agronomy, Northwest A&F University/State Key Laboratory of Crop Stress Biology for Arid Areas, Yangling, China
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, China
| | - Wei-Jun Zheng
- College of Agronomy, Northwest A&F University/State Key Laboratory of Crop Stress Biology for Arid Areas, Yangling, China
| | - Xin-You Cao
- Crop Research Institute, Shandong Academy of Agricultural Sciences, National Engineering Laboratory for Wheat and Maize, Key Laboratory of Wheat Biology and Genetic Improvement, Jinan, China
| | - Xi-Yan Cui
- College of Life Sciences, Jilin Agricultural University, Changchun, China
| | - Shu-Ping Zhao
- College of Agronomy, Northwest A&F University/State Key Laboratory of Crop Stress Biology for Arid Areas, Yangling, China
| | - Tai-Fei Yu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, China
| | - Jun Chen
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, China
| | - Yong-Bin Zhou
- College of Agronomy, Northwest A&F University/State Key Laboratory of Crop Stress Biology for Arid Areas, Yangling, China
| | - Ming Chen
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, China
| | - Shou-Cheng Chai
- College of Agronomy, Northwest A&F University/State Key Laboratory of Crop Stress Biology for Arid Areas, Yangling, China
- *Correspondence: Shou-Cheng Chai ; Zhao-Shi Xu,
| | - Zhao-Shi Xu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, China
- *Correspondence: Shou-Cheng Chai ; Zhao-Shi Xu,
| | - You-Zhi Ma
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS)/National Key Facility for Crop Gene Resources and Genetic Improvement, Key Laboratory of Biology and Genetic Improvement of Triticeae Crops, Ministry of Agriculture, Beijing, China
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Hartley GP, Chow L, Ammons DT, Wheat WH, Dow SW. Programmed Cell Death Ligand 1 (PD-L1) Signaling Regulates Macrophage Proliferation and Activation. Cancer Immunol Res 2018; 6:1260-1273. [PMID: 30012633 DOI: 10.1158/2326-6066.cir-17-0537] [Citation(s) in RCA: 218] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 01/18/2018] [Accepted: 07/10/2018] [Indexed: 11/16/2022]
Abstract
Tumor-associated macrophages (TAMs) express programmed cell death ligand 1 (PD-L1) and contribute to the immune-suppressive tumor microenvironment. Although the role of the PD-L1 and PD-1 interaction to regulate T-cell suppression is established, less is known about PD-L1 signaling in macrophages and how these signals may affect the function of TAMs. We used in vitro and in vivo models to investigate PD-L1 signaling in macrophages and the effects of PD-L1 antibody treatment on TAM responses. Treatment of mouse and human macrophages with PD-L1 antibodies increased spontaneous macrophage proliferation, survival, and activation (costimulatory molecule expression, cytokine production). Similar changes were observed in macrophages incubated with soluble CD80 and soluble PD-1, and in PD-L1-/- macrophages. Macrophage treatment with PD-L1 antibodies upregulated mTOR pathway activity, and RNAseq analysis revealed upregulation of multiple macrophage inflammatory pathways. In vivo, treatment with PD-L1 antibody resulted in increased tumor infiltration with activated macrophages. In tumor-bearing RAG-/- mice, upregulated costimulatory molecule expression by TAMs and reduced tumor growth were observed. Combined PD-1/ PD-L1 antibody treatment of animals with established B16 melanomas cured half of the treated mice, whereas treatment with single antibodies had little therapeutic effect. These findings indicate that PD-L1 delivers a constitutive negative signal to macrophages, resulting in an immune-suppressive cell phenotype. Treatment with PD-L1 antibodies reverses this phenotype and triggers macrophage-mediated antitumor activity, suggesting a distinct effect of PD-L1, but not PD-1, antibody treatment. Cancer Immunol Res; 6(10); 1260-73. ©2018 AACR.
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Affiliation(s)
- Genevieve P Hartley
- Animal Cancer Center, Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Ft. Collins, Colorado
| | - Lyndah Chow
- Animal Cancer Center, Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Ft. Collins, Colorado
| | - Dylan T Ammons
- Animal Cancer Center, Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Ft. Collins, Colorado
| | - William H Wheat
- Animal Cancer Center, Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Ft. Collins, Colorado
| | - Steven W Dow
- Animal Cancer Center, Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Ft. Collins, Colorado.
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Genetic variation and systemic lupus erythematosus: A field synopsis and systematic meta-analysis. Autoimmun Rev 2018; 17:553-566. [DOI: 10.1016/j.autrev.2017.12.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Accepted: 12/15/2017] [Indexed: 01/22/2023]
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Xu H, Wang L, Zheng P, Liu Y, Zhang C, Jiang K, Song H, Ji G. Elevated serum A20 is associated with severity of chronic hepatitis B and A20 inhibits NF-κB-mediated inflammatory response. Oncotarget 2018; 8:38914-38926. [PMID: 28473659 PMCID: PMC5503582 DOI: 10.18632/oncotarget.17153] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 04/03/2017] [Indexed: 12/14/2022] Open
Abstract
A20 is a powerful suppressor for inflammatory response. This study aims to determine A20 level in patients with chronic hepatitis B (CHB), and analyze its association with the disease severity. The role of A20 in inflammatory response was further investigated in vivo and in vitro. Our results showed significantly higher A20 in both serum and liver tissues in CHB patients than in health controls. Serum A20 level was positively correlated with ALT, AST and TNF-α. To induce hepatitis with inflammation and liver injury, mice were injected intraperitoneally with D-galactosamine (D-GalN), resulting in rapid increase of A20 in serum and liver tissues. Consistently, HepG2 and Huh-7 cells exposed to Lipopolysaccharide (LPS) or D-GalN were promoted to express A20. Moreover, overexpression or knockdown of A20 inhibited or increased TNF-α secretion separately. A20 significantly reduced pro-inflammatory cytokines expression and down-regulated phospho-IκBα and phospho-p65 in both cells. In conclusion, elevated A20 expression is involved in the severity of CHB, suggesting A20 to be a possible serological biomarker for the disease prognosis. Additionally, the inflammatory response is attenuated by A20 through inhibiting NF-κB activity, which partially contributes to the hepato-protective function of this molecule. Thus, up-regulating A20 might be a potential strategy for preventing the progress of CHB.
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Affiliation(s)
- Hanchen Xu
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Lei Wang
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Peiyong Zheng
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China.,China-Canada Centre of Research for Digestive Diseases, Shanghai 200032, China
| | - Yang Liu
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Chunlei Zhang
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Kaiping Jiang
- Department of Hepatology, Foshan Hospital of Traditional Chinese Medicine, Foshan 528000, China
| | - Haiyan Song
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China.,China-Canada Centre of Research for Digestive Diseases, Shanghai 200032, China
| | - Guang Ji
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China.,China-Canada Centre of Research for Digestive Diseases, Shanghai 200032, China
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Mouton-Liger F, Rosazza T, Sepulveda-Diaz J, Ieang A, Hassoun SM, Claire E, Mangone G, Brice A, Michel PP, Corvol JC, Corti O. Parkin deficiency modulates NLRP3 inflammasome activation by attenuating an A20-dependent negative feedback loop. Glia 2018; 66:1736-1751. [PMID: 29665074 PMCID: PMC6190839 DOI: 10.1002/glia.23337] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 03/16/2018] [Accepted: 03/19/2018] [Indexed: 12/13/2022]
Abstract
Neuroinflammation and mitochondrial dysfunction, key mechanisms in the
pathogenesis of Parkinson's disease (PD), are usually explored independently.
Loss‐of‐function mutations of PARK2 and PARK6,
encoding the E3 ubiquitin protein ligase Parkin and the mitochondrial
serine/threonine kinase PINK1, account for a large proportion of cases of autosomal
recessive early‐onset PD. PINK1 and Parkin regulate mitochondrial quality control and
have been linked to the modulation of innate immunity pathways. We report here an
exacerbation of NLRP3 inflammasome activation by specific inducers in microglia and
bone marrow‐derived macrophages from Park2−/− and Pink1−/− mice. The caspase 1‐dependent release of IL‐1β and IL‐18 was, therefore,
enhanced in Park2−/− and Pink1−/− cells. This defect was confirmed in blood‐derived macrophages from patients
with PARK2 mutations and was reversed by MCC950, which specifically
inhibits NLRP3 inflammasome complex formation. Enhanced NLRP3 signaling in
Parkin‐deficient cells was accompanied by a lack of induction of A20, a well‐known
negative regulator of the NF‐κB pathway recently shown to attenuate NLRP3
inflammasome activity. We also found an inverse correlation between A20 abundance and
IL‐1β release, in human macrophages challenged with NLRP3 inflammasome inducers.
Overall, our observations suggest that the A20/NLRP3‐inflammasome axis participates
in the pathogenesis of PARK2‐linked PD, paving the way for the
exploration of its potential as a biomarker and treatment target.
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Affiliation(s)
- François Mouton-Liger
- Institut du Cerveau et de la Moelle épinière, ICM, Paris, F-75013, France.,Inserm, U1127, Paris, F-75013, France.,CNRS, UMR 7225, Paris, F-75013, France.,Sorbonne Universités, Paris, F-75013, France
| | - Thibault Rosazza
- Institut du Cerveau et de la Moelle épinière, ICM, Paris, F-75013, France.,Inserm, U1127, Paris, F-75013, France.,CNRS, UMR 7225, Paris, F-75013, France.,Sorbonne Universités, Paris, F-75013, France
| | - Julia Sepulveda-Diaz
- Institut du Cerveau et de la Moelle épinière, ICM, Paris, F-75013, France.,Inserm, U1127, Paris, F-75013, France.,CNRS, UMR 7225, Paris, F-75013, France.,Sorbonne Universités, Paris, F-75013, France
| | - Amélie Ieang
- Institut du Cerveau et de la Moelle épinière, ICM, Paris, F-75013, France.,Inserm, U1127, Paris, F-75013, France.,CNRS, UMR 7225, Paris, F-75013, France.,Sorbonne Universités, Paris, F-75013, France
| | - Sidi-Mohamed Hassoun
- Institut du Cerveau et de la Moelle épinière, ICM, Paris, F-75013, France.,Inserm, U1127, Paris, F-75013, France.,CNRS, UMR 7225, Paris, F-75013, France.,Sorbonne Universités, Paris, F-75013, France
| | - Emilie Claire
- Institut du Cerveau et de la Moelle épinière, ICM, Paris, F-75013, France.,Inserm, U1127, Paris, F-75013, France.,CNRS, UMR 7225, Paris, F-75013, France.,Sorbonne Universités, Paris, F-75013, France
| | - Graziella Mangone
- Institut du Cerveau et de la Moelle épinière, ICM, Paris, F-75013, France.,Inserm, U1127, Paris, F-75013, France.,CNRS, UMR 7225, Paris, F-75013, France.,Sorbonne Universités, Paris, F-75013, France.,AP-HP, Hôpital de la Pitié Salpêtrière, Clinical Investigation Center of Neurology (CIC-1422), Department of Neurology, Hôpital Pitié-Salpêtrière, Paris, F-75013, France
| | - Alexis Brice
- Institut du Cerveau et de la Moelle épinière, ICM, Paris, F-75013, France.,Inserm, U1127, Paris, F-75013, France.,CNRS, UMR 7225, Paris, F-75013, France.,Sorbonne Universités, Paris, F-75013, France
| | - Patrick P Michel
- Institut du Cerveau et de la Moelle épinière, ICM, Paris, F-75013, France.,Inserm, U1127, Paris, F-75013, France.,CNRS, UMR 7225, Paris, F-75013, France.,Sorbonne Universités, Paris, F-75013, France
| | - Jean-Christophe Corvol
- Institut du Cerveau et de la Moelle épinière, ICM, Paris, F-75013, France.,Inserm, U1127, Paris, F-75013, France.,CNRS, UMR 7225, Paris, F-75013, France.,Sorbonne Universités, Paris, F-75013, France.,AP-HP, Hôpital de la Pitié Salpêtrière, Clinical Investigation Center of Neurology (CIC-1422), Department of Neurology, Hôpital Pitié-Salpêtrière, Paris, F-75013, France
| | - Olga Corti
- Institut du Cerveau et de la Moelle épinière, ICM, Paris, F-75013, France.,Inserm, U1127, Paris, F-75013, France.,CNRS, UMR 7225, Paris, F-75013, France.,Sorbonne Universités, Paris, F-75013, France
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An Autoimmune Disease-Associated Risk Variant in the TNFAIP3 Gene Plays a Protective Role in Brucellosis That Is Mediated by the NF-κB Signaling Pathway. J Clin Microbiol 2018; 56:JCM.01363-17. [PMID: 29343543 PMCID: PMC5869838 DOI: 10.1128/jcm.01363-17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Accepted: 01/05/2018] [Indexed: 12/21/2022] Open
Abstract
Naturally occurring functional variants (rs148314165 and rs200820567, collectively referred to as TT>A) reduce the expression of the tumor necrosis factor alpha-induced protein 3 (TNFAIP3) gene, a negative regulator of NF-κB signaling, and predispose individuals to autoimmune disease. In this analysis, we conducted a genetic association study of the TT>A variants in 1,209 controls and 150 patients with brucellosis, an infectious disease, and further assessed the role of the variants in brucellosis. Our data demonstrated that the TT>A variants were correlated with cases of brucellosis (P = 0.002; odds ratio [OR] = 0.34) and with individuals who had a positive serum agglutination test (SAT) result (titer of >1/160) (P = 4.2 × 10−6; OR = 0.23). A functional study demonstrated that brucellosis patients carrying the protective allele (A) showed significantly lower expression levels of the TNFAIP3 gene in their peripheral blood mononuclear cells and showed increased NF-κB signaling. Monocytes from individuals carrying the A allele that were stimulated with Brucella abortus had lower mRNA levels of TNFAIP3 and produced more interleukin-10 (IL-10), IL-6, and IL-1β than those from TT allele carriers. These data showed that autoimmune disease-associated risk variants, TT>A, of the TNFAIP3 locus play a protective role in the pathogenesis of brucellosis. Our findings suggest that a disruption of the normal function of the TNFAIP3 gene might serve as a therapeutic target for the treatment of brucellosis.
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36
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Li WL, Wu MS, Guo PL, Hu FY, Li LH, Tang XP. Overexpression of A20 inhibits the inflammatory response during dengue fever infection. Future Virol 2018. [DOI: 10.2217/fvl-2017-0083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aim: Dengue hemorrhagic fever is a devastating disease. This study aimed to investigate the role of A20 in dengue fever infection. Materials & methods: DENV2-infected human umbilical vein endothelial cells were transfected with shRNA-A20/CD14 and A20/CD14-mimics, respectively. The expressions of inflammatory and anti-inflammatory factors, A20 and downstream proteins of the NF-κB signaling pathway were detected. Results: A20 knockdown increased the expression of IL-6, IL-10, IL-8 and CD14 during dengue virus infection, whereas overexpression of A20 had the opposite effect. FACS revealed that A20 negatively regulated the expression of CD14. Conclusion: In DENV2-infected human umbilical vein endothelial cells overexpressing A20, TNF-α stimulation inhibited NF-κB-mediated inflammatory response by negative feedback. Furthermore, A20 could affect the release of inflammatory factors via negative regulation of CD14, thus affecting the entire inflammatory response.
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Affiliation(s)
- Wen-Li Li
- Department of Infectious Diseases, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
- Department of Infectious Diseases, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
| | - Mao-Sheng Wu
- Department of Infectious Diseases, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
| | - Peng-Le Guo
- Number Eight People’s Hospital of Guangzhou, Guangzhou, 510060, China
| | - Feng-Yu Hu
- Number Eight People’s Hospital of Guangzhou, Guangzhou, 510060, China
| | - Ling-Hua Li
- Number Eight People’s Hospital of Guangzhou, Guangzhou, 510060, China
| | - Xiao-Ping Tang
- Department of Infectious Diseases, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
- Number Eight People’s Hospital of Guangzhou, Guangzhou, 510060, China
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37
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Zaidi D, Wine E. Regulation of Nuclear Factor Kappa-Light-Chain-Enhancer of Activated B Cells (NF-κβ) in Inflammatory Bowel Diseases. Front Pediatr 2018; 6:317. [PMID: 30425977 PMCID: PMC6218406 DOI: 10.3389/fped.2018.00317] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 10/05/2018] [Indexed: 12/13/2022] Open
Abstract
Inflammatory bowel diseases (IBD), encompassing both Crohn Disease (CD) and ulcerative colitis (UC) are globally prevalent diseases, impacting children of all ages. The hallmark of IBD is a perturbed immune system that leads to continuous inflammation in the gut and challenges optimal treatment. Nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κβ), a nuclear transcription factor, plays a major role in gut homeostasis and contributes significantly toward a balanced, homeostatic immune system. Dysregulation in the NF-κβ pathway and factors that regulate it lead to a state of uncontrolled inflammation and altered immunity, as typically observed in IBD. Levels of proinflammatory cytokines that are regulated through NF-κβ are increased in both CD and UC. Genes known to activate NF-κβ, such as, Nucleotide-binding oligomerization domain-containing protein 2 (NOD2) and Interleukin 23 (IL-23), are associated with IBD. Factors involved in inhibition of NF-κβ, such as A20 and TOLLIP, are also affected in IBD, resulting in failed inflammation suppression/regulation. NOD-2 and A20 have specifically been found to be strongly associated with pediatric IBD. Gut commensals are known to exert anti-inflammatory activities toward NF-κβ and can have a potential role in attenuating inflammation that likely occurs due to microbial dysbiosis in IBD. Failure to terminate/downregulate NF-κβ signaling results in chronic inflammation in IBD. Well-regulated control of inflammation in children with IBD can help better control the disease and suppress immune responses. Better understanding of factors that control NF-κβ can potentially lead toward discovering targeted therapeutic interventions for IBD. Suppression of NF-κβ can be achieved through many modalities including anti-sense oligonucleotides (ASOs), siRNA (small interfering RNA), factors regulating NF-κβ, and microbes. This review focuses on the role of NF-κβ, especially in pediatric IBD, and potential therapeutic venues for attenuating NF-κβ-induced inflammation.
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Affiliation(s)
- Deenaz Zaidi
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada.,Centre of Excellence for Gastrointestinal Inflammation and Immunity Research, University of Alberta, Edmonton, AB, Canada
| | - Eytan Wine
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada.,Centre of Excellence for Gastrointestinal Inflammation and Immunity Research, University of Alberta, Edmonton, AB, Canada.,Department of Physiology, University of Alberta, Edmonton, AB, Canada
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38
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Qin M, Luo Y, Lu S, Sun J, Yang K, Sun G, Sun X. Ginsenoside F1 Ameliorates Endothelial Cell Inflammatory Injury and Prevents Atherosclerosis in Mice through A20-Mediated Suppression of NF-kB Signaling. Front Pharmacol 2017; 8:953. [PMID: 29311947 PMCID: PMC5744080 DOI: 10.3389/fphar.2017.00953] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 12/15/2017] [Indexed: 01/06/2023] Open
Abstract
Atherosclerosis (AS) is a chronic inflammatory disease and endothelial cell injury is the initial event. In this study, we investigated the protective effects of ginsenoside F1 (GF1) on AS and the potential molecular mechanisms of ox-LDL induced endothelial injury. ApoE-/- mice were fed a high fat diet and orally treated with GF1 (50 mg/kg/day) for 8 weeks. Atherosclerotic plaque and LOX-1, TLR4, NF-κB expression levels in the aortic root and inflammatory factor MPO in whole body were measured. The treatment with GF1 induced a remarkable reduction in the atherosclerotic lesion area, LOX-1, TLR4 expression and decreased the MPO distribution. Meanwhile, in vitro study, we confirmed that GF1 treatment greatly increased ox-LDL-injured endothelial cell viability, ameliorated LOX-1, TLR4 expression levels and reduced monocytes adhesion. Protein microarray demonstrated that GF1 significantly inhibited G-CSF, ICAM-1, MIP-1δ, IL-1α, IL-15, IL-16 levels. Mechanistically, the GF1 treatment suppressed the NF-κB nuclear translocation. Furthermore, our data indicated that GF1 significantly increased A20 expression level and A20 siRNA markedly abolished the attenuation of GF1 on NF-κB nuclear translocation and inflammatory factors expression. Our results suggest that the GF1 may be a potential drug for anti-atherosclerosis.
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Affiliation(s)
- Meng Qin
- Institute of Medicinal Plant Development, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China.,Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, China
| | - Yun Luo
- Institute of Medicinal Plant Development, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China.,Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, China
| | - Shan Lu
- Institute of Medicinal Plant Development, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China.,Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, China
| | - Jing Sun
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Ke Yang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, China
| | - Guibo Sun
- Institute of Medicinal Plant Development, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China.,Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, China
| | - Xiaobo Sun
- Institute of Medicinal Plant Development, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China.,Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, China
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Taher TE, Bystrom J, Ong VH, Isenberg DA, Renaudineau Y, Abraham DJ, Mageed RA. Intracellular B Lymphocyte Signalling and the Regulation of Humoral Immunity and Autoimmunity. Clin Rev Allergy Immunol 2017; 53:237-264. [PMID: 28456914 PMCID: PMC5597704 DOI: 10.1007/s12016-017-8609-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
B lymphocytes are critical for effective immunity; they produce antibodies and cytokines, present antigens to T lymphocytes and regulate immune responses. However, because of the inherent randomness in the process of generating their vast repertoire of antigen-specific receptors, B cells can also cause diseases through recognizing and reacting to self. Therefore, B lymphocyte selection and responses require tight regulation at multiple levels and at all stages of their development and activation to avoid diseases. Indeed, newly generated B lymphocytes undergo rigorous tolerance mechanisms in the bone marrow and, subsequently, in the periphery after their migration. Furthermore, activation of mature B cells is regulated through controlled expression of co-stimulatory receptors and intracellular signalling thresholds. All these regulatory events determine whether and how B lymphocytes respond to antigens, by undergoing apoptosis or proliferation. However, defects that alter regulated co-stimulatory receptor expression or intracellular signalling thresholds can lead to diseases. For example, autoimmune diseases can result from altered regulation of B cell responses leading to the emergence of high-affinity autoreactive B cells, autoantibody production and tissue damage. The exact cause(s) of defective B cell responses in autoimmune diseases remains unknown. However, there is evidence that defects or mutations in genes that encode individual intracellular signalling proteins lead to autoimmune diseases, thus confirming that defects in intracellular pathways mediate autoimmune diseases. This review provides a synopsis of current knowledge of signalling proteins and pathways that regulate B lymphocyte responses and how defects in these could promote autoimmune diseases. Most of the evidence comes from studies of mouse models of disease and from genetically engineered mice. Some, however, also come from studying B lymphocytes from patients and from genome-wide association studies. Defining proteins and signalling pathways that underpin atypical B cell response in diseases will help in understanding disease mechanisms and provide new therapeutic avenues for precision therapy.
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Affiliation(s)
- Taher E Taher
- Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK
| | - Jonas Bystrom
- Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK
| | - Voon H Ong
- Centre for Rheumatology and Connective Tissue Diseases, Royal Free Hospital, University College London, London, UK
| | | | - Yves Renaudineau
- Immunology Laboratory, University of Brest Medical School, Brest, France
| | - David J Abraham
- Centre for Rheumatology and Connective Tissue Diseases, Royal Free Hospital, University College London, London, UK
| | - Rizgar A Mageed
- Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK.
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40
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Lee JH, Jung SM, Yang KM, Bae E, Ahn SG, Park JS, Seo D, Kim M, Ha J, Lee J, Kim JH, Kim JH, Ooshima A, Park J, Shin D, Lee YS, Lee S, van Loo G, Jeong J, Kim SJ, Park SH. A20 promotes metastasis of aggressive basal-like breast cancers through multi-monoubiquitylation of Snail1. Nat Cell Biol 2017; 19:1260-1273. [DOI: 10.1038/ncb3609] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 08/10/2017] [Indexed: 12/16/2022]
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41
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Wei L, Zhang X, Ye Q, Yang Y, Chen X. The transfection of A20 gene prevents kidney from ischemia reperfusion injury in rats. Mol Med Rep 2017; 16:1486-1492. [PMID: 29067462 DOI: 10.3892/mmr.2017.6725] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 03/24/2017] [Indexed: 11/06/2022] Open
Abstract
Ischemia/reperfusion may induce inflammation and cell death through the nuclear factor (NF)‑κB signaling pathway. As a negative regulator of NF‑κB, zinc finger A20 exhibits anti-apoptotic and anti‑inflammatory effects in vitro. The present study was designed to upregulate A20 expression using an A20 transfection approach to investigate the in vivo protective effects of the A20 gene on renal ischemia reperfusion injury. The A20 gene was cloned into a pcDNA3.1 vector to construct the expression plasmid pcDNA3.1‑A20. The plasmid was wrapped with a liposome and injected intravenously into rats 48 h prior to establishing the models of renal ischemia reperfusion injury. Saline and the empty plasmid pcDNA3.1 were used as controls. Following 24 h post‑operation, A20 expression was determined using reverse transcription‑quantitative polymerase chain reaction and western blotting. The renal function and structure were assessed by analyzing the concentrations of serum creatinine (Scr), blood urea nitrogen (BUN) and histological features. Renal tissues were additionally examined for renal tubular cell apoptosis and NF‑κB activity. The results demonstrated that in vivo transfection of pcDNA3.1‑A20 induced renal A20 expression in rats. A20 overexpression in vivo significantly reduced renal injury as demonstrated by the improved levels of Scr and BUN and the reduction in histological damage. These improvements were accompanied by a suppression of renal proximal tubular epithelial cell apoptosis and an inhibition of NF‑κB activity. These results indicated that transfection of the A20 gene upregulates the expression of A20 in vivo and protects the kidneys from ischemia reperfusion injury via inhibition of the NF‑κB signal transduction pathway.
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Affiliation(s)
- Lixin Wei
- Department of Nephropathy, Union Hospital, Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Xianghui Zhang
- Department of Nephropathy, The Fifth Affiliated Hospital of Zunyi Medical University, Zhuhai, Guangdong 519000, P.R. China
| | - Qiuping Ye
- Department of Nephropathy, Union Hospital, Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Yueer Yang
- Department of Nephropathy, Union Hospital, Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Xiaowen Chen
- Department of Nephropathy, Union Hospital, Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
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Chen S, Yang X, Cheng W, Ma Y, Shang Y, Cao L, Chen S, Chen Y, Wang M, Guo D. Immune regulator ABIN1 suppresses HIV-1 transcription by negatively regulating the ubiquitination of Tat. Retrovirology 2017; 14:12. [PMID: 28193275 PMCID: PMC5304394 DOI: 10.1186/s12977-017-0338-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 01/31/2017] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND A20-binding inhibitor of NF-κB activation (ABIN1), an important immune regulator, was previously shown to be involved in HIV-1 replication. However, the reported studies done with overexpressed ABIN1 provided controversial results. RESULTS Here we identified ABIN1 as a suppressor of HIV-1 transcription since transient knockdown of ABIN1 led to increased HIV-1 replication both in transformed Jurkat T cell line and in primary human CD4+ T lymphocytes. Depletion of ABIN1 specifically enhanced the HIV-1 transcription from the integrated genome during viral life cycle, but not the earlier steps such as reverse transcription or integration. Immunoprecipitation assays revealed that ABIN1 specifically inhibits the proto-oncogene HDM2 catalyzed K63-linked polyubiquitination of Tat at Lys71, which is critical for the transactivation activity of Tat. The ubiquitin chain binding activity of ABIN1 carried by UBAN domain turned out to be essential for the inhibitory role of ABIN1. The results of immunofluorescence localization experiments suggested that ABIN1 may obstruct Tat ubiquitination by redistributing some of HDM2 from the nucleus to the cytoplasm. CONCLUSIONS Our findings have revealed ABIN1 as intrinsic suppressor of HIV-1 mRNA transcription by regulating the ubiquitination of Tat.
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Affiliation(s)
- Shiyou Chen
- State Key Laboratory of Virology and Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, 430072, People's Republic of China
| | - Xiaodan Yang
- State Key Laboratory of Virology and Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, 430072, People's Republic of China
| | - Weijia Cheng
- Clinical Laboratory, General Hospital of the Yangtze River Shipping, Wuhan, 430010, People's Republic of China
| | - Yuhong Ma
- School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, People's Republic of China
| | - Yafang Shang
- State Key Laboratory of Virology and Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, 430072, People's Republic of China
| | - Liu Cao
- State Key Laboratory of Virology and Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, 430072, People's Republic of China
| | - Shuliang Chen
- School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, People's Republic of China
| | - Yu Chen
- State Key Laboratory of Virology and Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, 430072, People's Republic of China
| | - Min Wang
- School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, People's Republic of China.
| | - Deyin Guo
- State Key Laboratory of Virology and Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, 430072, People's Republic of China. .,School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, People's Republic of China. .,School of Basic Medicine (Shenzhen), Sun Yat-sen University, Guangzhou, 510080, People's Republic of China.
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43
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Interplay of Toll-Like Receptor 9, Myeloid Cells, and Deubiquitinase A20 in Periodontal Inflammation. Infect Immun 2016; 85:IAI.00814-16. [PMID: 27849177 DOI: 10.1128/iai.00814-16] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 11/02/2016] [Indexed: 01/18/2023] Open
Abstract
Toll-like receptor 9 (TLR9)-deficient (TLR9-/-) mice are resistant to periodontitis, a disease characterized by a dysbiotic microbiota and deregulated immune response and resulting in tooth loss and various systemic conditions. However, the mechanisms and biological pathways by which TLR9 instigates periodontal inflammation are yet to be identified. In a ligature-induced model of periodontitis, we demonstrate that TLR9-/- mice exhibited significantly less alveolar bone loss than their wild-type (WT) counterparts. Consistent with the disease phenotype, gingival tissues showed significantly more inflammatory cell infiltration in the WT ligated but not in the TLR9-/- ligated mice compared to the unligated controls. The peritoneal infection model using Porphyromonas gingivalis, a keystone pathogen for periodontitis, revealed reduced neutrophils in TLR9-/- mice on day 1 postinfection compared to the levels in WT mice. Transcriptomics analyses showed increased expression of A20 (tumor necrosis factor alpha [TNF-α]-induced protein 3 [TNFAIP3]), an inhibitor of the NF-κB pathway and a negative regulator of TLR signaling, in ligated TLR9-/- mouse gingival tissues compared to its expression in the WT. Ex vivo, TLR9-/- bone marrow-derived macrophages produced more A20 than WT cells following P. gingivalis challenge. Clinically, A20 was modestly upregulated in human gingival tissue specimens from chronic periodontitis patients, further confirming the biological relevance of A20 in periodontal inflammation. We conclude that TLR9 modulates periodontal disease progression at both the cellular and molecular level and identify A20 as a novel downstream signaling molecule in the course of periodontal inflammation. Understanding the regulation of the TLR9 signaling pathway and the involvement of A20 as a limiting factor of inflammation will uncover alternative therapeutic targets to treat periodontitis and other chronic inflammatory diseases.
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44
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Cesaro E, Sodaro G, Montano G, Grosso M, Lupo A, Costanzo P. The Complex Role of the ZNF224 Transcription Factor in Cancer. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2016; 107:191-222. [PMID: 28215224 DOI: 10.1016/bs.apcsb.2016.11.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
ZNF224 is a member of the Kruppel-associated box zinc finger proteins (KRAB-ZFPs) family. It was originally identified as a transcriptional repressor involved in gene-specific silencing through the recruitment of the corepressor KAP1, chromatin-modifying activities, and the arginine methyltransferase PRMT5 on the promoter of its target genes. Recent findings indicate that ZNF224 can behave both as a tumor suppressor or an oncogene in different human cancers. The transcriptional regulatory properties of ZNF224 in these systems appear to be complex and influenced by specific sets of interactors. ZNF224 can also act as a transcription cofactor for other DNA-binding proteins. A role for ZNF224 in transcriptional activation has also emerged. Here, we review the state of the literature supporting both roles of ZNF224 in cancer. We also examine the functional activity of ZNF224 as a transcription factor and the influence of protein partners on its dual behavior. Increasing information on the mechanism through which ZNF224 can operate could lead to the identification of agents capable of modulating ZNF224 function, thus potentially paving the way to new therapeutic strategies for treatment of cancer.
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Affiliation(s)
- E Cesaro
- University of Naples Federico II, Naples, Italy
| | - G Sodaro
- University of Naples Federico II, Naples, Italy
| | - G Montano
- BioMedical Center, Lund University, Lund, Sweden
| | - M Grosso
- University of Naples Federico II, Naples, Italy
| | - A Lupo
- University of Sannio, Benevento, Italy
| | - P Costanzo
- University of Naples Federico II, Naples, Italy.
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45
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New insights into the post-translational modification of Toll-like receptor signaling molecules. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/09680519050110060701] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Deregulation of Toll-like receptor (TLR) mediated responses can have devastating effects on the host if left unchecked. It is, therefore, critical that control is exerted at several levels. In this review, we discuss post-translational modification of TLRs and their associated signaling molecules as one such means of control. In particular, we focus on the phosphorylation, ubiquitination and de-ubiquitination of various components of TLR signaling pathways.
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46
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Immunoregulatory Effects Triggered by Lactic Acid Bacteria Exopolysaccharides: New Insights into Molecular Interactions with Host Cells. Microorganisms 2016; 4:microorganisms4030027. [PMID: 27681921 PMCID: PMC5039587 DOI: 10.3390/microorganisms4030027] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 06/10/2016] [Indexed: 01/02/2023] Open
Abstract
Researchers have demonstrated that lactic acid bacteria (LAB) with immunomodulatory capabilities (immunobiotics) exert their beneficial effects through several molecules, including cell wall, peptidoglycan, and exopolysaccharides (EPS), that are able to interact with specific host cell receptors. EPS from LAB show a wide heterogeneity in its composition, meaning that biological properties depend on the strain and. therefore, only a part of the mechanism of action has been elucidated for these molecules. In this review, we summarize the current knowledge of the health-promoting actions of EPS from LAB with special focus on their immunoregulatory actions. In addition, we describe our studies using porcine intestinal epithelial cells (PIE cells) as a model to evaluate the molecular interactions of EPS from two immunobiotic LAB strains and the host cells. Our studies showed that EPS from immunobiotic LAB have anti-inflammatory capacities in PIE cells since they are able to reduce the production of inflammatory cytokines in cells challenged with the Toll-like receptor (TLR)-4-agonist lipopolysaccharide. The effects of EPS were dependent on TLR2, TLR4, and negative regulators of TLR signaling. We also reported that the radioprotective 105 (RP105)/MD1 complex, a member of the TLR family, is partially involved in the immunoregulatory effects of the EPS from LAB. Our work described, for the first time, that LAB and their EPS reduce inflammation in intestinal epithelial cells in a RP105/MD1-dependent manner. A continuing challenge for the future is to reveal more effector-receptor relationships in immunobiotic-host interactions that contribute to the beneficial effects of these bacteria on mucosal immune homeostasis. A detailed molecular understanding should lead to a more rational use of immunobiotics in general, and their EPS in particular, as efficient prevention and therapies for specific immune-related disorders in humans and animals.
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47
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Liu N, Wang L, Sun C, Yang L, Sun W, Peng Q. MicroRNA-125b-5p suppresses Brucella abortus intracellular survival via control of A20 expression. BMC Microbiol 2016; 16:171. [PMID: 27473222 PMCID: PMC4966734 DOI: 10.1186/s12866-016-0788-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Accepted: 07/27/2016] [Indexed: 12/13/2022] Open
Abstract
Background Brucella may establish chronic infection by regulating the expression of miRNAs. However, the role of miRNAs in modulating the intracellular growth of Brucella remains unclear. Results In this study, we show that Brucella. abortus infection leads to downregulation of miR-125b-5p in macrophages. We establish that miR-125b-5p targets A20, an inhibitor of the NF-kB activation. Additionally, expression of miR-125b-5p decreases A20 expression in B. abortus-infected macrophages and leads to NF-kB activation and increased production of TNFα. Furthermore, B. abortus survival is attenuated in the presence of miR-125b-5p. Conclusions These results uncover a role for miR-125b-5p in the regulation of B. abortus intracellular survival via the control of A20 expression.
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Affiliation(s)
- Ning Liu
- Central Laboratory, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Lin Wang
- Key Laboratory for Zoonosis Research, Ministry of Education, Institute of Zoonosis, Jilin University, Changchun, 130062, China
| | - Changjiang Sun
- College of Veterinary Medicine, Jilin University, Changchun, 130062, China
| | - Li Yang
- Key Laboratory for Zoonosis Research, Ministry of Education, Institute of Zoonosis, Jilin University, Changchun, 130062, China
| | - Wanchun Sun
- Key Laboratory for Zoonosis Research, Ministry of Education, Institute of Zoonosis, Jilin University, Changchun, 130062, China
| | - Qisheng Peng
- Central Laboratory, The Second Hospital of Jilin University, Changchun, 130041, China. .,Key Laboratory for Zoonosis Research, Ministry of Education, Institute of Zoonosis, Jilin University, Changchun, 130062, China.
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48
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Song X, Yao Z, Yang J, Zhang Z, Deng Y, Li M, Ma C, Yang L, Gao X, Li W, Liu J, Wei L. HCV core protein binds to gC1qR to induce A20 expression and inhibit cytokine production through MAPKs and NF-κB signaling pathways. Oncotarget 2016; 7:33796-808. [PMID: 27183919 PMCID: PMC5085119 DOI: 10.18632/oncotarget.9304] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 04/25/2016] [Indexed: 01/17/2023] Open
Abstract
Hepatitis C virus (HCV) infection is characterized by a strong propensity toward chronicity. During chronic HCV infection, HCV core protein is implicated in deregulating cytokine expression that associates with chronic inflammation. A20 is known as a powerful suppressor in cytokine signaling, in this study, we explored the A20 expression in macrophages induced by HCV core protein and the involved signaling pathways. Results demonstrated that HCV core protein induced A20 expression in macrophages. Silencing A20 significantly enhanced the secretion of IL-6, IL-1β and TGF-β1, but not IL-8 and TNF. Additionally, HCV core protein interacted with gC1qR, but not TLR2, TLR3 and TLR4 in pull-down assay. Silencing gC1qR abrogated core-induced A20 expression. Furthermore, HCV core protein activated MAPK, NF-κB and PI3K/AKT pathways in macrophages. Inhibition of P38, JNK and NF-κB but not ERK and AKT activities greatly reduced the A20 expression. In conclusion, the study suggests that HCV core protein ligates gC1qR to induce A20 expression in macrophages via P38, JNK and NF-κB signaling pathways, which leads to a low-grade chronic inflammation during HCV infection. It represents a novel mechanism by which HCV usurps the host for persistence.
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Affiliation(s)
- Xiaotian Song
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, China
| | - Zhiyan Yao
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, China
| | - Jianling Yang
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, China
| | - Zhengzheng Zhang
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, China
| | - Yuqing Deng
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, China
| | - Miao Li
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, China
| | - Cuiqing Ma
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, China
| | - Lijuan Yang
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, China
| | - Xue Gao
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, China
| | - Wenjian Li
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, China
| | - Jianguo Liu
- Division of Infectious Diseases, Allergy and Immunology, Departments of Internal Medicine and Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO, USA
| | - Lin Wei
- Department of Immunology, Hebei Medical University, Shijiazhuang, China
- Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, China
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49
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Shi X, Qian T, Li M, Chen F, Chen Y, Hao F. Aberrant Low Expression of A20 in Tumor Necrosis Factor-α-stimulated SLE Monocytes Mediates Sustained NF-κB Inflammatory Response. Immunol Invest 2016; 44:497-508. [PMID: 26107748 DOI: 10.3109/08820139.2015.1037957] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The aberrantly activated monocytes and nuclear factor-kappaB (NF-κB) pathway contribute to the pathogenesis of systemic lupus erythematosus (SLE), and the aberrantly activated NF-κB is associated with defects in the anti-inflammatory A20 in SLE. However, whether SLE monocytes express A20 and whether the A20 expression under sustained proinflammatory stimulation is altered to contribute to the uncontrolled NF-κB inflammatory response are unclear. In this study, we found that the freshly isolated monocytes from SLE patients and healthy controls did not differ in expression levels of IL-1β, IκBα and A20. After TNF-α stimulation for 48 h, the monocytes from both groups expressed higher levels of IL-1β and IκBα than the monocytes without TNF-α treatment. Although the increased levels of NF-κB were observed in the nucleus of both the SLE and control monocytes after 24 h of TNF-α stimulation, the enhancement in SLE monocytes was significantly more robust than in the control monocytes. In addition, while the p-IκBα level in healthy monocytes was increased, the p-IκBα level in SLE monocytes was slightly decreased after TNF-α stimulation. Interestingly, after TNF-α treatment, the A20 expression in SLE monocytes was not markedly altered compared with the untreated SLE monocytes; moreover, the SLE monocytes expressed significantly lower A20 than healthy monocytes with TNF-α treatment at each time point. Results in this study demonstrate that TNF-α activates a significant NF-κB inflammatory response in SLE monocytes, which is at least partially mediated by the aberrantly low expression of A20 upon TNF-α stimulation, contributing to the prolonged inflammatory response in SLE.
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Affiliation(s)
- Xiaowei Shi
- Department of Dermatology, Southwest Hospital, Third Military Medical University , Chongqing , China
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50
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Li J, Zhang L, Zhang Y, Liu Y, Zhang H, Wei L, Shen T, Jiang C, Zhu D. A20 deficiency leads to angiogenesis of pulmonary artery endothelial cells through stronger NF-κB activation under hypoxia. J Cell Mol Med 2016; 20:1319-28. [PMID: 26991692 PMCID: PMC4929300 DOI: 10.1111/jcmm.12816] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 01/17/2016] [Indexed: 12/11/2022] Open
Abstract
A20 is a zinc finger protein associated with hypoxia. As chronic hypoxia is responsible for intimal hyperplasia and disordered angiogenesis of pulmonary artery, which are histological hallmarks of pulmonary artery hypertension, we intended to explore the role of A20 in angiogenesis of pulmonary artery endothelial cells (ECs). Here, we found a transient elevation of A20 expression in the lung tissues from hypoxic rats compared with normoxic controls. This rapid enhancement was mainly detected in the endothelium, and similar results were reproduced in vitro. During early hypoxia, genetic inhibition of A20 increased proliferation in pulmonary artery ECs, linking to advanced cell cycle progression as well as microtubule polymerization, and aggravated angiogenic effects including tube formation, cell migration and adhesion molecules expression. In addition, a negative feedback loop between nuclear factor-kappa B and A20 was confirmed. Our findings provide evidence for an adaptive role of A20 against pulmonary artery ECs angiogenesis via nuclear factor-kappa B activation.
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Affiliation(s)
- Jing Li
- Department of Biopharmaceutical Sciences, Harbin Medical University, Daqing, Heilongjiang, China.,Department of Biopharmaceutical Key Laboratory of Heilongjiang Province, Harbin Medical University, Harbin, Heilongjiang, China
| | - Linlin Zhang
- Department of Biopharmaceutical Sciences, Harbin Medical University, Daqing, Heilongjiang, China
| | - Yueming Zhang
- Department of Biopharmaceutical Sciences, Harbin Medical University, Daqing, Heilongjiang, China.,Department of Biopharmaceutical Key Laboratory of Heilongjiang Province, Harbin Medical University, Harbin, Heilongjiang, China
| | - Ying Liu
- Department of Biopharmaceutical Sciences, Harbin Medical University, Daqing, Heilongjiang, China.,Department of Biopharmaceutical Key Laboratory of Heilongjiang Province, Harbin Medical University, Harbin, Heilongjiang, China
| | - Hongyue Zhang
- Department of Biopharmaceutical Sciences, Harbin Medical University, Daqing, Heilongjiang, China.,Department of Biopharmaceutical Key Laboratory of Heilongjiang Province, Harbin Medical University, Harbin, Heilongjiang, China
| | - Liuping Wei
- Department of Biopharmaceutical Sciences, Harbin Medical University, Daqing, Heilongjiang, China.,Department of Biopharmaceutical Key Laboratory of Heilongjiang Province, Harbin Medical University, Harbin, Heilongjiang, China
| | - Tingting Shen
- Department of Biopharmaceutical Sciences, Harbin Medical University, Daqing, Heilongjiang, China.,Department of Biopharmaceutical Key Laboratory of Heilongjiang Province, Harbin Medical University, Harbin, Heilongjiang, China
| | - Chun Jiang
- Department of Biology, Georgia State University, Atlanta, GA, USA
| | - Daling Zhu
- Department of Biopharmaceutical Sciences, Harbin Medical University, Daqing, Heilongjiang, China.,Department of Biopharmaceutical Key Laboratory of Heilongjiang Province, Harbin Medical University, Harbin, Heilongjiang, China
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