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Qin Z, Xie L, Li W, Wang C, Li Y. New Insights into Mechanisms Traditional Chinese Medicine for Allergic Rhinitis by Regulating Inflammatory and Oxidative Stress Pathways. J Asthma Allergy 2024; 17:97-112. [PMID: 38405022 PMCID: PMC10888064 DOI: 10.2147/jaa.s444923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 01/23/2024] [Indexed: 02/27/2024] Open
Abstract
Allergy rhinitis (AR) is becoming more common and has serious medical and societal consequences. Sneezing, paroxysmal nasal blockage, nasal itching, mucosal edema, coughing, and rhinorrhea are symptoms of this type I allergic immunological illness. Immunoglobulin E-mediated inflammation is the cause of it. Because AR is prone to recurrent attacks, extended medication therapy may impair its effectiveness. In addition to negatively affecting the patients' physical health, this can also negatively impact their mental health. During AR development, there are inflammatory and oxidative stress responses that are linked to problems in a number of signal transduction pathways. By using the terms "allergic rhinitis", "traditional Chinese medicine", "inflammation", and "oxidative stress", we screened for pertinent research published over the previous five years in databases like PubMed. We saw that NF-KB, TLR, IL-33/ST2, PI3K/AKT, MAPK, and Nrf2 are some of the most important inflammatory and oxidative stress pathways in AR. Studies have revealed that antioxidant and anti-inflammatory therapy reduced the risk of AR and was therapeutic; however, the impact of the therapy varies widely. The Chinese medical system places a high value on traditional Chinese medicine (TCM), which has been there for virtually all of China's 5000-year history. By influencing signaling pathways related to inflammation and oxidative stress, Chinese herbal medicine and its constituent compounds have been shown to prevent allergic rhinitis. This review will focus on this evidence and provide references for clinical treatment and scientific research applications.
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Affiliation(s)
- Zhu Qin
- Department of Otolaryngology, Graduate School of Heilongjiang University of Traditional Chinese Medicine, Harbin, Heilongjiang, People’s Republic of China
| | - Liangzhen Xie
- Department of Otolaryngology, Graduate School of Heilongjiang University of Traditional Chinese Medicine, Harbin, Heilongjiang, People’s Republic of China
- Department of Otolaryngology, First Affiliated Hospital of Heilongjiang University of Traditional Chinese Medicine, Harbin, Heilongjiang, People’s Republic of China
| | - Wentao Li
- Department of Otolaryngology, First Affiliated Hospital of Heilongjiang University of Traditional Chinese Medicine, Harbin, Heilongjiang, People’s Republic of China
| | - Chao Wang
- Department of Otolaryngology, Graduate School of Heilongjiang University of Traditional Chinese Medicine, Harbin, Heilongjiang, People’s Republic of China
| | - Yan Li
- Department of Otolaryngology, First Affiliated Hospital of Heilongjiang University of Traditional Chinese Medicine, Harbin, Heilongjiang, People’s Republic of China
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Kostinova AM, Latysheva EA, Akhmatova NK, Vlasenko AE, Skhodova SA, Khromova EA, Linok AV, Poddubikov AA, Latysheva TV, Kostinov MP. Expression of Toll-like Receptors on the Immune Cells in Patients with Common Variable Immune Deficiency after Different Schemes of Influenza Vaccination. Viruses 2023; 15:2091. [PMID: 37896869 PMCID: PMC10611272 DOI: 10.3390/v15102091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/06/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND for the first time, the effect of one and two doses of adjuvanted influenza vaccines on toll-like receptors (TLRs) in patients with common variable immunodeficiency (CVID) was studied and compared (primary vaccination with one vs. two doses, primary vs. repeated vaccination). MATERIALS AND METHODS Six patients received one dose of quadrivalent adjuvanted influenza vaccine during the 2018-2019 and 2019-2020 influenza seasons, and nine patients with CVID received two doses of trivalent inactivated influenza vaccine during 2019-2020. Expression of TLRs was measured by flow cytometry. RESULTS The expression of toll-like receptors in patients with CVID was noted both with repeated (annual) administration of the influenza vaccine and in most cases was accompanied by an increase in the proportion of granulocytes (TLR3 and TLR9), lymphocytes (TLR3 and TLR8), and monocytes (TLR3 and TLR9). When carried out for the first time as a simultaneous vaccination with two doses it was accompanied by an increase in the proportion of granulocytes, lymphocytes expressing TLR9, and on monocytes-TLR3 and TLR9. CONCLUSION in CVID patients, the use of adjuvanted vaccines is promising, and research on the influence of the innate immunity and more effective regimens should be continued.
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Affiliation(s)
- Aristitsa Mikhailovna Kostinova
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Trubetskaya Str. 8/2, 119991 Moscow, Russia (A.A.P.); (M.P.K.)
- National Research Center—Institute of Immunology Federal Medical-Biological Agency of Russia, Kashirskoe Shosse, 24, 115478 Moscow, Russia (T.V.L.)
| | - Elena Alexandrovna Latysheva
- National Research Center—Institute of Immunology Federal Medical-Biological Agency of Russia, Kashirskoe Shosse, 24, 115478 Moscow, Russia (T.V.L.)
- Pirogov Russian National Research Medical University, Ostrovitianov Str. 1, 117997 Moscow, Russia
| | - Nelly Kimovna Akhmatova
- Russian Federal State Budgetary Scientific Institution «I.I. Mechnikov Research Institute of Vaccines and Sera», Malyi Kazenniy Pereulok, 5a, 105064 Moscow, Russia (E.A.K.)
| | - Anna Egorovna Vlasenko
- Federal State Budgetary Educational Institution of Higher Education “Samara State Medical University” of the Ministry of Healthcare of the Russian Federation, Chapaevskaya Street, 89, 443099 Samara, Russia
| | - Svetlana Anatolyevna Skhodova
- Russian Federal State Budgetary Scientific Institution «I.I. Mechnikov Research Institute of Vaccines and Sera», Malyi Kazenniy Pereulok, 5a, 105064 Moscow, Russia (E.A.K.)
| | - Ekaterina Alexandrovna Khromova
- Russian Federal State Budgetary Scientific Institution «I.I. Mechnikov Research Institute of Vaccines and Sera», Malyi Kazenniy Pereulok, 5a, 105064 Moscow, Russia (E.A.K.)
| | - Andrey Viktorovich Linok
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Trubetskaya Str. 8/2, 119991 Moscow, Russia (A.A.P.); (M.P.K.)
| | - Arseniy Alexandrovich Poddubikov
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Trubetskaya Str. 8/2, 119991 Moscow, Russia (A.A.P.); (M.P.K.)
| | - Tatyana Vasilievna Latysheva
- National Research Center—Institute of Immunology Federal Medical-Biological Agency of Russia, Kashirskoe Shosse, 24, 115478 Moscow, Russia (T.V.L.)
| | - Mikhail Petrovich Kostinov
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Trubetskaya Str. 8/2, 119991 Moscow, Russia (A.A.P.); (M.P.K.)
- Russian Federal State Budgetary Scientific Institution «I.I. Mechnikov Research Institute of Vaccines and Sera», Malyi Kazenniy Pereulok, 5a, 105064 Moscow, Russia (E.A.K.)
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Smith S, Lopez S, Kim A, Kasteri J, Olumuyide E, Punu K, de la Parra C, Sauane M. Interleukin 24: Signal Transduction Pathways. Cancers (Basel) 2023; 15:3365. [PMID: 37444474 PMCID: PMC10340555 DOI: 10.3390/cancers15133365] [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: 05/25/2023] [Revised: 06/16/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023] Open
Abstract
Interleukin 24 is a member of the IL-10 family with crucial roles in antitumor, wound healing responses, host defense, immune regulation, and inflammation. Interleukin 24 is produced by both immune and nonimmune cells. Its canonical pathway relies on recognition and interaction with specific Interleukin 20 receptors in the plasma membrane and subsequent cytoplasmic Janus protein tyrosine kinases (JAK)/signal transducer and activator of the transcription (STAT) activation. The identification of noncanonical JAK/STAT-independent signaling pathways downstream of IL-24 relies on the interaction of IL-24 with protein kinase R in the cytosol, respiratory chain proteins in the inner mitochondrial membrane, and chaperones such as Sigma 1 Receptor in the endoplasmic reticulum. Numerous studies have shown that enhancing or inhibiting the expression of Interleukin 24 has a therapeutic effect in animal models and clinical trials in different pathologies. Successful drug targeting will require a deeper understanding of the downstream signaling pathways. In this review, we discuss the signaling pathway triggered by IL-24.
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Affiliation(s)
- Simira Smith
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA; (S.S.); (S.L.); (J.K.); (E.O.); (K.P.)
| | - Sual Lopez
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA; (S.S.); (S.L.); (J.K.); (E.O.); (K.P.)
| | - Anastassiya Kim
- Ph.D. Program in Biology, The Graduate Center, City University of New York, 365 Fifth Avenue, New York, NY 10016, USA; (A.K.); (C.d.l.P.)
| | - Justina Kasteri
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA; (S.S.); (S.L.); (J.K.); (E.O.); (K.P.)
| | - Ezekiel Olumuyide
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA; (S.S.); (S.L.); (J.K.); (E.O.); (K.P.)
| | - Kristian Punu
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA; (S.S.); (S.L.); (J.K.); (E.O.); (K.P.)
| | - Columba de la Parra
- Ph.D. Program in Biology, The Graduate Center, City University of New York, 365 Fifth Avenue, New York, NY 10016, USA; (A.K.); (C.d.l.P.)
- Department of Chemistry, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA
| | - Moira Sauane
- Department of Biological Sciences, Herbert H. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA; (S.S.); (S.L.); (J.K.); (E.O.); (K.P.)
- Ph.D. Program in Biology, The Graduate Center, City University of New York, 365 Fifth Avenue, New York, NY 10016, USA; (A.K.); (C.d.l.P.)
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Tang X, Xu Q, Yang S, Huang X, Wang L, Huang F, Luo J, Zhou X, Wu A, Mei Q, Zhao C, Wu J. Toll-like Receptors and Thrombopoiesis. Int J Mol Sci 2023; 24:ijms24021010. [PMID: 36674552 PMCID: PMC9864288 DOI: 10.3390/ijms24021010] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 12/27/2022] [Accepted: 01/03/2023] [Indexed: 01/06/2023] Open
Abstract
Platelets are the second most abundant blood component after red blood cells and can participate in a variety of physiological and pathological functions. Beyond its traditional role in hemostasis and thrombosis, it also plays an indispensable role in inflammatory diseases. However, thrombocytopenia is a common hematologic problem in the clinic, and it presents a proportional relationship with the fatality of many diseases. Therefore, the prevention and treatment of thrombocytopenia is of great importance. The expression of Toll-like receptors (TLRs) is one of the most relevant characteristics of thrombopoiesis and the platelet inflammatory function. We know that the TLR family is found on the surface or inside almost all cells, where they perform many immune functions. Of those, TLR2 and TLR4 are the main stress-inducing members and play an integral role in inflammatory diseases and platelet production and function. Therefore, the aim of this review is to present and discuss the relationship between platelets, inflammation and the TLR family and extend recent research on the influence of the TLR2 and TLR4 pathways and the regulation of platelet production and function. Reviewing the interaction between TLRs and platelets in inflammation may be a research direction or program for the treatment of thrombocytopenia-related and inflammatory-related diseases.
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Affiliation(s)
- Xiaoqin Tang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Qian Xu
- Department of Physiology, School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, China
| | - Shuo Yang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Xinwu Huang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Long Wang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
| | - Feihong Huang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
| | - Jiesi Luo
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
| | - Xiaogang Zhou
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
| | - Anguo Wu
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
| | - Qibing Mei
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
| | - Chunling Zhao
- Department of Physiology, School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, China
- Correspondence: (C.Z.); (J.W.); Tel.: +86-186-8307-3667 (C.Z.); +86-139-8241-6641 (J.W.)
| | - Jianming Wu
- Department of Physiology, School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, China
- Institute of Cardiovascular Research, the Key Laboratory of Medical Electrophysiology, Ministry of Education of China, Luzhou 646000, China
- Correspondence: (C.Z.); (J.W.); Tel.: +86-186-8307-3667 (C.Z.); +86-139-8241-6641 (J.W.)
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Yan LR, Lv Z, Jing JJ, Yuan Y, Xu Q. Single nucleotide polymorphisms of whole genes and atrophic gastritis susceptibility:a systematic review and meta-analysis. Gene 2021; 782:145543. [PMID: 33667608 DOI: 10.1016/j.gene.2021.145543] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/29/2021] [Accepted: 02/18/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND Atrophic gastritis (AG) is one of the important precancerous lesions of gastric cancer. Single nucleotide polymorphisms (SNPs) are closely related to AG susceptibility. However, the research conclusions on the predictive potential of SNPs are inconsistent. The study aims to retrospect the association between SNPs of whole genes and AG risk by meta-analysis. MATERIALS AND METHODS Up to April 29, 2020, a systematic literature search for the relationship of SNPs with AG susceptibility was performed utilizing PubMed, Web of Science and Chinese National Knowledge Infrastructure. The overall and stratified meta-analyses on extracted data were conducted by Stata11.2. RESULTS 33 case-control studies were enrolled containing 9951 AG patients and 17,252 healthy controls, and 17 SNPs in 12 different genes were systematically reviewed. The results indicated that 12 genes could be categorized based on their functions, including immune response, cell proliferation and apoptosis, and DNA damage repair. For the SNPs in immune response-related genes, the C allele of TLR1 rs4833095 T/C increased AG risk to 1.21-fold and the recessive model of TLR4 rs11536878 in the TLR gene family decreased AG susceptibility to 0.48-fold. The variant alleles of IL-10 rs1800871 (OR = 1.21) and IL-8 rs4073 (OR = 1.22) in the IL gene family were positively associated with AG risk. PSCA rs2294008 enhanced AG risk in all genetic models. SNPs associated with AG susceptibility were mainly focused on immune response-related genes. CONCLUSION These SNPs related to immune response could influence on AG risk and have potential to be AG predictive biomarkers. It is worth noting that the number of studies for each SNPs were insufficient due to the limited published researches and updated meta-analysis needs to be performed based on extensive relevant studies for more reliable results.
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Affiliation(s)
- Li-Rong Yan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China
| | - Zhi Lv
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China
| | - Jing-Jing Jing
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China.
| | - Qian Xu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China.
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Huang YM, Hong XZ, Shen J, Geng LJ, Pan YH, Ling W, Zhao HL. Amyloids in Site-Specific Autoimmune Reactions and Inflammatory Responses. Front Immunol 2020; 10:2980. [PMID: 31993048 PMCID: PMC6964640 DOI: 10.3389/fimmu.2019.02980] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 12/04/2019] [Indexed: 12/15/2022] Open
Abstract
Amyloid deposition is a histological hallmark of common human disorders including Alzheimer's disease (AD) and type 2 diabetes. Although some reports highlight that amyloid fibrils might activate the innate immunity system via pattern recognition receptors, here, we provide multiple lines of evidence for the protection by site-specific amyloid protein analogs and fibrils against autoimmune attacks: (1) strategies targeting clearance of the AD-related brain amyloid plaque induce high risk of deadly autoimmune destructions in subjects with cognitive dysfunction; (2) administration of amyloidogenic peptides with either full length or core hexapeptide structure consistently ameliorates signs of experimental autoimmune encephalomyelitis; (3) experimental autoimmune encephalomyelitis is exacerbated following genetic deletion of amyloid precursor proteins; (4) absence of islet amyloid coexists with T-cell-mediated insulitis in autoimmune diabetes and autoimmune polyendocrine syndrome; (5) use of islet amyloid polypeptide agonists rather than antagonists improves diabetes care; and (6) common suppressive signaling pathways by regulatory T cells are activated in both local and systemic amyloidosis. These findings indicate dual modulation activity mediated by amyloid protein monomers, oligomers, and fibrils to maintain immune homeostasis. The protection from autoimmune destruction by amyloid proteins offers a novel therapeutic approach to regenerative medicine for common degenerative diseases.
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Affiliation(s)
- Yan-Mei Huang
- Department of Immunology, Guangxi Area of Excellence, Guilin Medical University, Guilin, China.,Center for Systems Medicine, Guangxi Key Laboratory of Excellence, Guilin Medical University, Guilin, China
| | - Xue-Zhi Hong
- Department of Immunology, Guangxi Area of Excellence, Guilin Medical University, Guilin, China.,Department of Rheumatology and Immunology, The First Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Jian Shen
- Department of Immunology, Guangxi Area of Excellence, Guilin Medical University, Guilin, China.,Department of Pathology, The First Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Li-Jun Geng
- Department of Immunology, Guangxi Area of Excellence, Guilin Medical University, Guilin, China.,Center for Systems Medicine, Guangxi Key Laboratory of Excellence, Guilin Medical University, Guilin, China
| | - Yan-Hong Pan
- Department of Immunology, Guangxi Area of Excellence, Guilin Medical University, Guilin, China.,Center for Systems Medicine, Guangxi Key Laboratory of Excellence, Guilin Medical University, Guilin, China
| | - Wei Ling
- Department of Immunology, Guangxi Area of Excellence, Guilin Medical University, Guilin, China.,Department of Endocrinology, Xiangya Medical School, Central South University, Changsha, China
| | - Hai-Lu Zhao
- Department of Immunology, Guangxi Area of Excellence, Guilin Medical University, Guilin, China.,Center for Systems Medicine, Guangxi Key Laboratory of Excellence, Guilin Medical University, Guilin, China.,Institute of Basic Medical Sciences, Faculty of Basic Medicine, Guilin Medical University, Guilin, China
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Yan B, Ma H, Jiang S, Shi J, Yang Z, Zhu W, Kong C, Chen L, Yan H, Ma C. microRNA-221 restricts human cytomegalovirus replication via promoting type I IFN production by targeting SOCS1/NF-κB pathway. Cell Cycle 2019; 18:3072-3084. [PMID: 31550968 DOI: 10.1080/15384101.2019.1667706] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
HCMV is a common pathogen for human with relatively high prevalence, which could be life-threatened in immunodeficient patients and lead to significant birth defects in newborns. In this study, we firstly report that HCMV infection significantly enhances the expression of microRNA-221 (miR-221) in Neural Precursor Cells (NPCs). We found that miR-221 directly targets at the 3'-UTR of suppressor of cytokine signaling 1 (SOCS1) and suppresses SOCS1 expression at the both mRNA and protein levels. MiR-221 overexpression restrained HCMV replication by promoting type I interferon (IFN) and interferon stimulating genes (ISGs) production, whereas reintroduction of SOCS1 abrogated the miR-221-induced effects on HCMV replication. Importantly, miR-221 positively regulated the phosphorylation and activation of NF-κB by suppressing SOCS1. What's more, miR-221 agomir alleviated MCMV-induced tissue injury by promoting type I IFN antiviral activities in vivo. Thus, miR-221 modulates the infection and replication of HCMV as an intrinsic antiviral factor, and could be developed as a treatment target for anti-HCMV treatment.
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Affiliation(s)
- Beizhan Yan
- Blood Transfusion Department, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University , Zhengzhou , Henan , China
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Crosstalk of toll-like receptors signaling and Nrf2 pathway for regulation of inflammation. Biomed Pharmacother 2018; 108:1866-1878. [PMID: 30372892 DOI: 10.1016/j.biopha.2018.10.019] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 09/09/2018] [Accepted: 10/03/2018] [Indexed: 12/20/2022] Open
Abstract
Inflammation as a second line of defense of innate immunity plays a crucial role in eliminating invading pathogens (bacteria, viruses, fungi as well as other parasites). The inflammatory response may also activate adaptive immune system involving lymphocytes to mount either antibody dependent or cell-mediated immune responses to clear pathogenic insult. However, if continued, the inflammatory processes may become uncontrolled culminating in cellular injury and tissue destruction, thereby manifesting itself in chronic form. The chronic inflammation has been associated with numerous human pathological conditions like allergies and autoimmune diseases, atherosclerosis, arthritis, Alzheimer's disease, cancer, obesity, type 2 diabetes, schizophrenia, neuro-degenerative diseases and numerous others. The dysregulated inflammatory process is associated with overproduction of free radicals leading to oxidative stress and activation of different cell signaling pathways. The regulation of inflammation by TLR signaling as well as Nrf2 pathways separately is widely documented. Since both these major signaling pathways modulate inflammation, they may crosstalk to bring about coordinated inflammatory responses. The linkage between TLR signaling and Nrf2-Keap1 pathway may serve as a bridge between immune regulation and oxidative stress responses through regulation of inflammation. Also, inflammation is reportedly responsible for the plethora of diseased conditions; a study of its regulation by targeting the TLR-Nrf2 cross-talks may also be beneficial for the development of therapeutic therapies or prophylactic treatments. Hence, present review focuses on the crosstalk between TLR signaling and Nrf2 pathway with respect to their role in modulation of inflammation in normal as well as pathologic conditions.
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Zhang A, Gu W, Lu H, Zeng L, Zhang L, Du D, Hao J, Wen D, Wang X, Jiang J. Genetic contribution of suppressor of cytokine signalling polymorphisms to the susceptibility to infection after traumatic injury. Clin Exp Immunol 2018; 194:93-102. [PMID: 29920655 DOI: 10.1111/cei.13160] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/19/2018] [Indexed: 12/17/2022] Open
Abstract
Suppressor of cytokine signalling (SOCS) proteins are crucial negative regulators in many signalling pathways and are implicated in the pathogenesis of infectious diseases. The purpose of this study was to uncover possible associations of common polymorphisms within SOCS genes with infectious outcomes after traumatic injury. A total of 1087 trauma patients (Chongqing cohort 806 and Yunnan cohort 281) were recruited and followed-up for the development of infectious outcomes, such as sepsis and multiple organ dysfunction syndrome (MODS). Twelve selected single nucleotide polymorphisms (SNPs) were screened by pyrosequencing to determine their genotypes and associations with infectious complications. Among the 12 selected SNPs, only the cytokine-inducible Src homology (SH2) domain protein (CISH) promoter rs414171 polymorphism was found consistently to be associated statistically with the incidence of sepsis and MOD score in the two cohorts, despite analysing the SNPs independently or in combination. Further, patients with a T allele had significantly lower CISH expression and lower production of tumour necrosis factor (TNF)-α, but higher production of interleukin (IL)-10. Luciferase assay confirmed that the A→T variant in the rs414171 polymorphism inhibited the transcriptional activities of the CISH gene significantly. The CISH rs414171 polymorphism is associated significantly with susceptibility to sepsis and MODS in traumatic patients, which might prove to be a novel biomarker for indicating risk of infectious outcomes in critically injured patients.
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Affiliation(s)
- A Zhang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
| | - W Gu
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
| | - H Lu
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
| | - L Zeng
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
| | - L Zhang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
| | - D Du
- Department of Cardiothoracic Surgery, The Affiliated Central Hospital of Chongqing University, Chongqing Emergency Medical Center, Chongqing, China
| | - J Hao
- Emergency Department, Kunming General Hospital, Chengdu Military of PLA, Kunming, Yunnan, China
| | - D Wen
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
| | - X Wang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China.,Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - J Jiang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, China
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Duncan SA, Baganizi DR, Sahu R, Singh SR, Dennis VA. SOCS Proteins as Regulators of Inflammatory Responses Induced by Bacterial Infections: A Review. Front Microbiol 2017; 8:2431. [PMID: 29312162 PMCID: PMC5733031 DOI: 10.3389/fmicb.2017.02431] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Accepted: 11/23/2017] [Indexed: 12/31/2022] Open
Abstract
Severe bacterial infections can lead to both acute and chronic inflammatory conditions. Innate immunity is the first defense mechanism employed against invading bacterial pathogens through the recognition of conserved molecular patterns on bacteria by pattern recognition receptors (PRRs), especially the toll-like receptors (TLRs). TLRs recognize distinct pathogen-associated molecular patterns (PAMPs) that play a critical role in innate immune responses by inducing the expression of several inflammatory genes. Thus, activation of immune cells is regulated by cytokines that use the Janus kinase/signal transducers and activators of transcription (JAK/STAT) signaling pathway and microbial recognition by TLRs. This system is tightly controlled by various endogenous molecules to allow for an appropriately regulated and safe host immune response to infections. Suppressor of cytokine signaling (SOCS) family of proteins is one of the central regulators of microbial pathogen-induced signaling of cytokines, principally through the inhibition of the activation of JAK/STAT signaling cascades. This review provides recent knowledge regarding the role of SOCS proteins during bacterial infections, with an emphasis on the mechanisms involved in their induction and regulation of antibacterial immune responses. Furthermore, the implication of SOCS proteins in diverse processes of bacteria to escape host defenses and in the outcome of bacterial infections are discussed, as well as the possibilities offered by these proteins for future targeted antimicrobial therapies.
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Affiliation(s)
- Skyla A Duncan
- Center for NanoBiotechnology Research, Alabama State University, Montgomery, AL, United States
| | - Dieudonné R Baganizi
- Center for NanoBiotechnology Research, Alabama State University, Montgomery, AL, United States
| | - Rajnish Sahu
- Center for NanoBiotechnology Research, Alabama State University, Montgomery, AL, United States
| | - Shree R Singh
- Center for NanoBiotechnology Research, Alabama State University, Montgomery, AL, United States
| | - Vida A Dennis
- Center for NanoBiotechnology Research, Alabama State University, Montgomery, AL, United States
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11
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Dey S, Bishayi B. Effect of iNOS inhibitor LNMMA along with antibiotics Chloramphenicol or Ofloxacin in murine peritoneal macrophages regulates S.aureus infection as well as inflammation: An in vitro study. Microb Pathog 2017; 105:307-320. [PMID: 28242423 DOI: 10.1016/j.micpath.2017.02.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 02/21/2017] [Accepted: 02/21/2017] [Indexed: 12/15/2022]
Abstract
Death due to sepsis by S. aureus is rapidly increasing because of their potent weaponries against macrophage mediated killing. Macrophages serve as intracellular reservoirs of S. aureus. Although significant resources have been invested during the last decade in new treatments for sepsis, only antibiotic therapy has failed to improve outcomes. Moreover the host pathogen interaction resulted in host cell death triggering inflammation. So, successful therapy requires amalgamation of therapies to delineate pathogen along with providing protection to host cell. With this idea, LNMMA, the iNOS inhibitor is used along with antibiotics Ofloxacin or Chloramphenicol on S. aureus infected mouse peritoneal macrophage. ROS like H2O2, O2- production has been measured. NO inhibition by iNOS inhibitor and antioxidant levels has been analysed. COX2, TLR2 and iNOS expression along with proinflammatory cytokine level was studied. It was found that the use of iNOS inhibitor LNMMA along with antibiotics not only enhances bacterial clearance but also decreases proinflammatory responses in Staphylococcus aureus infected macrophages. Inhibition of TLR2 as well as COX2 has also been found in combined treatment groups. The use of iNOS inhibitor LNMMA plus Ofloxacin or Chloramphenicol pretreatment enhanced bacterial clearance by increasing ROS. Decreases in NO protect the cell from harmful peroxynitril as well as inflammatory damage by changes in iNOS, COX2 activity along with reduced proinflammatory cytokines like TNFα, IFNγ, IL1-β etc. Changes in antioxidant level has been found. This in-vitro realm of augmented bacterial clearance and regulated inflammation may be considered as a novel and important therapeutic intervention.
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Affiliation(s)
- Somrita Dey
- Department of Physiology, Immunology Laboratory, University of Calcutta, University Colleges of Science and Technology, 92 A.P.C. Road, Calcutta 700009, West Bengal, India.
| | - Biswadev Bishayi
- Department of Physiology, Immunology Laboratory, University of Calcutta, University Colleges of Science and Technology, 92 A.P.C. Road, Calcutta 700009, West Bengal, India.
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12
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Dey S, Bishayi B. Riboflavin along with antibiotics balances reactive oxygen species and inflammatory cytokines and controls Staphylococcus aureus infection by boosting murine macrophage function and regulates inflammation. JOURNAL OF INFLAMMATION-LONDON 2016; 13:36. [PMID: 27932936 PMCID: PMC5126841 DOI: 10.1186/s12950-016-0145-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 11/22/2016] [Indexed: 12/17/2022]
Abstract
Background Macrophages serve as intracellular reservoirs of S. aureus. Recent in vitro studies have confirmed high level resistance by S. aureus to macrophage mediated killing and the intracellular persistence of Staphylococci may play an important role in the pathogenesis. Since this localization protects them from both cell-mediated and humoral immune responses, therefore, a successful anti-staphylococcal therapy should include the elimination of intracellular bacteria, further protecting the host cells from staphylococci-induced cell death. So, only antibiotic therapy may not be helpful, successful therapy needs combination of drugs not only for elimination of pathogen but also for rescuing the host cell for S. aureus induced cell death. Methods In keeping with this idea an in vitro study has been done to examine the effect of Riboflavin along with antibiotics on phagocytosis, hydorgen peroxide, superoxide production, antioxidant enzyme levels, and cytokine levels in mouse macrophages for amelioration of the Staphylococcus aureus burden. The immune boosting effects of Riboflavin have been validated through perturbations of redox homeostasis and pro-inflammatory cytokines measurements. Results It was observed that the supplementation of Vitamin B-2 (Riboflavin) not only enhances macrophage function as previously reported but also decreases pro-inflammatory responses in Staphylococcus aureus infected macrophages. The observed influence of Riboflavin on enhanced antimicrobial effects such as enhanced phagocytosis of macrophages exposed to S. aureus, hydrogen peroxide or superoxide production when combined with either ciprofloxacin (CIP) or Azithromycin (AZM) and decrease in pro-inflammatory responses of IFN-γ, IL-6, IL-1β. Riboflavin treatment also decreased NO and TNF-α level possibly by inhibiting the NF-κβ pathway. The increased antioxidant enzymes like glutathione reductase, SOD and GSH level helped in maintaining a stable redox state in the cell. Conclusion Riboflavin plus antibiotic pretreatment not only enhances macrophage functions but also decreases proinflammatory responses in Staphylococcus aureus infected macrophages indicating better bacterial clearance and regulated inflammation which may be considered as a novel and important therapeutic intervention.
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Affiliation(s)
- Somrita Dey
- Department of Physiology, Immunology Laboratory, University of Calcutta, University Colleges of Science and Technology, 92 A.P.C. Road, Calcutta, 700009 West Bengal India
| | - Biswadev Bishayi
- Department of Physiology, Immunology Laboratory, University of Calcutta, University Colleges of Science and Technology, 92 A.P.C. Road, Calcutta, 700009 West Bengal India
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Paul AM, Acharya D, Le L, Wang P, Stokic DS, Leis AA, Alexopoulou L, Town T, Flavell RA, Fikrig E, Bai F. TLR8 Couples SOCS-1 and Restrains TLR7-Mediated Antiviral Immunity, Exacerbating West Nile Virus Infection in Mice. THE JOURNAL OF IMMUNOLOGY 2016; 197:4425-4435. [PMID: 27798161 DOI: 10.4049/jimmunol.1600902] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 09/29/2016] [Indexed: 12/11/2022]
Abstract
West Nile virus (WNV) is a neurotropic ssRNA flavivirus that can cause encephalitis, meningitis, and death in humans and mice. Human TLR7 and TLR8 and mouse TLR7 recognize viral ssRNA motifs and induce antiviral immunity. However, the role of mouse TLR8 in antiviral immunity is poorly understood. In this article, we report that TLR8-deficient (Tlr8-/-) mice were resistant to WNV infection compared with wild-type controls. Efficient WNV clearance and moderate susceptibility to WNV-mediated neuronal death in Tlr8-/- mice were attributed to overexpression of Tlr7 and IFN-stimulated gene-56 expression, whereas reduced expression of the proapoptotic gene coding Bcl2-associated X protein was observed. Interestingly, suppressor of cytokine signaling (SOCS)-1 directly associated with TLR8, but not with TLR7, indicating a novel role for TLR8 regulation of SOCS-1 function, whereas selective small interfering RNA knockdown of Socs-1 resulted in induced IFN-stimulated gene-56 and Tlr7 expression following WNV infection. Collectively, we report that TLR8 coupling with SOCS-1 inhibits TLR7-mediated antiviral immunity during WNV infection in mice.
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Affiliation(s)
- Amber M Paul
- Department of Biological Sciences, The University of Southern Mississippi, Hattiesburg, MS 39406
| | - Dhiraj Acharya
- Department of Biological Sciences, The University of Southern Mississippi, Hattiesburg, MS 39406
| | - Linda Le
- Department of Biological Sciences, The University of Southern Mississippi, Hattiesburg, MS 39406
| | - Penghua Wang
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520.,Department of Microbiology and Immunology, School of Medicine, New York Medical College, Valhalla, NY 10595
| | - Dobrivoje S Stokic
- Center for Neuroscience and Neurological Recovery, Methodist Rehabilitation Center, Jackson, MS 39216
| | - A Arturo Leis
- Center for Neuroscience and Neurological Recovery, Methodist Rehabilitation Center, Jackson, MS 39216
| | - Lena Alexopoulou
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université UM2, INSERM, U1104, CNRS UMR7280, 13288 Marseille, France
| | - Terrence Town
- Zilkha Neurogenetic Institute, Keck School of Medicine of the University of Southern California, Los Angeles, CA 90033
| | - Richard A Flavell
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520; and.,Howard Hughes Medical Institute, New Haven, CT 06520
| | - Erol Fikrig
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520.,Howard Hughes Medical Institute, New Haven, CT 06520
| | - Fengwei Bai
- Department of Biological Sciences, The University of Southern Mississippi, Hattiesburg, MS 39406;
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14
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Greco SH, Mahmood SK, Vahle AK, Ochi A, Batel J, Deutsch M, Barilla R, Seifert L, Pachter HL, Daley D, Torres-Hernandez A, Hundeyin M, Mani VR, Miller G. Mincle suppresses Toll-like receptor 4 activation. J Leukoc Biol 2016; 100:185-94. [PMID: 26747838 PMCID: PMC6608084 DOI: 10.1189/jlb.3a0515-185r] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2015] [Revised: 11/28/2015] [Accepted: 12/22/2015] [Indexed: 11/24/2022] Open
Abstract
Regulation of Toll-like receptor responses is critical for limiting tissue injury and autoimmunity in both sepsis and sterile inflammation. We found that Mincle, a C-type lectin receptor, regulates proinflammatory Toll-like receptor 4 signaling. Specifically, Mincle ligation diminishes Toll-like receptor 4-mediated inflammation, whereas Mincle deletion or knockdown results in marked hyperresponsiveness to lipopolysaccharide in vitro, as well as overwhelming lipopolysaccharide-mediated inflammation in vivo. Mechanistically, Mincle deletion does not up-regulate Toll-like receptor 4 expression or reduce interleukin 10 production after Toll-like receptor 4 ligation; however, Mincle deletion decreases production of the p38 mitogen-activated protein kinase-dependent inhibitory intermediate suppressor of cytokine signaling 1, A20, and ABIN3 and increases expression of the Toll-like receptor 4 coreceptor CD14. Blockade of CD14 mitigates the increased sensitivity of Mincle(-/-) leukocytes to Toll-like receptor 4 ligation. Collectively, we describe a major role for Mincle in suppressing Toll-like receptor 4 responses and implicate its importance in nonmycobacterial models of inflammation.
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Affiliation(s)
- Stephanie H Greco
- Department of Surgery, S. Arthur Localio Laboratory, New York University School of Medicine, New York, NY, USA; and
| | - Syed Kashif Mahmood
- Department of Surgery, S. Arthur Localio Laboratory, New York University School of Medicine, New York, NY, USA; and
| | - Anne-Kristin Vahle
- Department of Surgery, S. Arthur Localio Laboratory, New York University School of Medicine, New York, NY, USA; and
| | - Atsuo Ochi
- Department of Surgery, S. Arthur Localio Laboratory, New York University School of Medicine, New York, NY, USA; and
| | - Jennifer Batel
- Department of Cell Biology, S. Arthur Localio Laboratory, New York University School of Medicine, New York, NY, USA
| | - Michael Deutsch
- Department of Surgery, S. Arthur Localio Laboratory, New York University School of Medicine, New York, NY, USA; and
| | - Rocky Barilla
- Department of Surgery, S. Arthur Localio Laboratory, New York University School of Medicine, New York, NY, USA; and
| | - Lena Seifert
- Department of Surgery, S. Arthur Localio Laboratory, New York University School of Medicine, New York, NY, USA; and
| | - H Leon Pachter
- Department of Surgery, S. Arthur Localio Laboratory, New York University School of Medicine, New York, NY, USA; and
| | - Donnele Daley
- Department of Surgery, S. Arthur Localio Laboratory, New York University School of Medicine, New York, NY, USA; and
| | - Alejandro Torres-Hernandez
- Department of Surgery, S. Arthur Localio Laboratory, New York University School of Medicine, New York, NY, USA; and
| | - Mautin Hundeyin
- Department of Surgery, S. Arthur Localio Laboratory, New York University School of Medicine, New York, NY, USA; and
| | - Vishnu R Mani
- Department of Surgery, S. Arthur Localio Laboratory, New York University School of Medicine, New York, NY, USA; and
| | - George Miller
- Department of Surgery, S. Arthur Localio Laboratory, New York University School of Medicine, New York, NY, USA; and Department of Cell Biology, S. Arthur Localio Laboratory, New York University School of Medicine, New York, NY, USA
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15
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SOCS1 in cancer: An oncogene and a tumor suppressor. Cytokine 2016; 82:87-94. [DOI: 10.1016/j.cyto.2016.01.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 01/11/2016] [Accepted: 01/12/2016] [Indexed: 01/24/2023]
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16
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Seifert L, Deutsch M, Alothman S, Alqunaibit D, Werba G, Pansari M, Pergamo M, Ochi A, Torres-Hernandez A, Levie E, Tippens D, Greco SH, Tiwari S, Ly NNG, Eisenthal A, van Heerden E, Avanzi A, Barilla R, Zambirinis CP, Rendon M, Daley D, Pachter HL, Hajdu C, Miller G. Dectin-1 Regulates Hepatic Fibrosis and Hepatocarcinogenesis by Suppressing TLR4 Signaling Pathways. Cell Rep 2015; 13:1909-1921. [PMID: 26655905 PMCID: PMC4681001 DOI: 10.1016/j.celrep.2015.10.058] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 08/13/2015] [Accepted: 10/19/2015] [Indexed: 02/07/2023] Open
Abstract
Dectin-1 is a C-type lectin receptor critical in anti-fungal immunity, but Dectin-1 has not been linked to regulation of sterile inflammation or oncogenesis. We found that Dectin-1 expression is upregulated in hepatic fibrosis and liver cancer. However, Dectin-1 deletion exacerbates liver fibro-inflammatory disease and accelerates hepatocarcinogenesis. Mechanistically, we found that Dectin-1 protects against chronic liver disease by suppressing TLR4 signaling in hepatic inflammatory and stellate cells. Accordingly, Dectin-1(-/-) mice exhibited augmented cytokine production and reduced survival in lipopolysaccharide (LPS)-mediated sepsis, whereas Dectin-1 activation was protective. We showed that Dectin-1 inhibits TLR4 signaling by mitigating TLR4 and CD14 expression, which are regulated by Dectin-1-dependent macrophage colony stimulating factor (M-CSF) expression. Our study suggests that Dectin-1 is an attractive target for experimental therapeutics in hepatic fibrosis and neoplastic transformation. More broadly, our work deciphers critical cross-talk between pattern recognition receptors and implicates a role for Dectin-1 in suppression of sterile inflammation, inflammation-induced oncogenesis, and LPS-mediated sepsis.
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Affiliation(s)
- Lena Seifert
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Michael Deutsch
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Sara Alothman
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Dalia Alqunaibit
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Gregor Werba
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Mridul Pansari
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Matthew Pergamo
- S. Arthur Localio Laboratory, Department of Pathology, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Atsuo Ochi
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Alejandro Torres-Hernandez
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Elliot Levie
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Daniel Tippens
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Stephanie H. Greco
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Shaun Tiwari
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Nancy Ngoc Giao Ly
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Andrew Eisenthal
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Eliza van Heerden
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Antonina Avanzi
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Rocky Barilla
- S. Arthur Localio Laboratory, Department of Pathology, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Constantinos P. Zambirinis
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Mauricio Rendon
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Donnele Daley
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - H. Leon Pachter
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - Cristina Hajdu
- S. Arthur Localio Laboratory, Department of Pathology, New York University School of Medicine, 550 First Avenue, New York, NY 10016
| | - George Miller
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, 550 First Avenue, New York, NY 10016
- S. Arthur Localio Laboratory, Department of Cell Biology New York University School of Medicine, 550 First Avenue, New York, NY 10016
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17
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Kanwal Z, Wiegertjes GF, Veneman WJ, Meijer AH, Spaink HP. Comparative studies of Toll-like receptor signalling using zebrafish. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2014; 46:35-52. [PMID: 24560981 DOI: 10.1016/j.dci.2014.02.003] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 02/04/2014] [Accepted: 02/06/2014] [Indexed: 06/03/2023]
Abstract
Zebrafish model systems for infectious disease are increasingly used for the functional analysis of molecular pattern recognition processes. These studies benefit from the high conservation level of all innate immune factors in vertebrates. Zebrafish studies are strategically well positioned for this because of the ease of comparisons with studies in other fish species of which the immune system also has been intensively studied, but that are currently still less amendable to detailed genetic or microscopic studies. In this paper we focus on Toll-like receptor (TLR) signalling factors, which currently are the best characterized in mammalian systems. We review the knowledge on TLR signalling in the context of recent advances in zebrafish studies and discuss possibilities for future approaches that can complement studies in cell cultures and rodent models. A focus in these comparisons is the role of negative control mechanisms in immune responses that appear very important in a whole organism to keep adverse systemic responses in check. We also pay much attention to comparisons with studies in common carp that is highly related to zebrafish and that because of its large body mass can complement immune studies in zebrafish.
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Affiliation(s)
- Zakia Kanwal
- Department of Animal Sciences and Health, Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Geert F Wiegertjes
- Cell Biology and Immunology Group, Wageningen Institute of Animal Sciences, Wageningen University, PO Box 338, 6700 AH Wageningen, The Netherlands
| | - Wouter J Veneman
- Department of Animal Sciences and Health, Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Annemarie H Meijer
- Department of Animal Sciences and Health, Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Herman P Spaink
- Department of Animal Sciences and Health, Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands.
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18
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Hu Z, Yang J, Wu Y, Xiong G, Wang Y, Yang J, Deng L. Polymorphisms in CISH gene are associated with persistent hepatitis B virus infection in Han Chinese population. PLoS One 2014; 9:e100826. [PMID: 24964072 PMCID: PMC4071005 DOI: 10.1371/journal.pone.0100826] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Accepted: 05/30/2014] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND AND AIM Cytokine-inducible SRC homology 2 domain protein (CISH) is the first member of the suppressors of cytokine signaling (SOCS) protein family. An association between multiple CISH polymorphisms and susceptibility to infectious diseases has been reported. This study aimed to investigate the possible association of these single nucleotide polymorphisms (SNPs) in CISH gene with different outcomes of Hepatitis B virus (HBV) infection. METHODS 1019 unrelated Chinese Han subjects, including 240 persistent asymptomatic HBV carriers, 217 chronic hepatitis B patients, 137 HBV-related liver cirrhosis patients, and 425 cases of spontaneously recovered HBV as controls, were studied. Four SNPs (rs622502, rs2239751, rs414171 and rs6768300) in CISH gene were genotyped with the snapshot technique. Transcriptional activity of the CISH promoter was assayed in vitro using the dual-luciferase reporter assay system. RESULTS At position rs414171, A allele and AA genotype frequencies were significantly higher in the HBV-resolved group as compared to the persistent HBV infection group. At position rs2239751, TT genotype was further observed in the HBV-resolved group. Using asymptomatic HBV carriers as controls, our results indicated that the rs414171 and rs2239751 polymorphisms were unrelated to HBV progression. The other two SNPs (rs622502 and rs6768300) showed no association with persistent HBV infection. Haplotype analysis revealed that the GGCA haplotype was associated with spontaneous clearance of HBV in this population. Moreover, luciferase activity was significantly higher in the PGL3-Basic-rs414171T construct as compared to the PGL3-Basic-rs414171A construct (p<0.001). CONCLUSION Two SNPs (rs414171 and rs2239751) in the CISH gene were associated with persistent HBV infection in Han Chinese population, but not with HBV progression.
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Affiliation(s)
- Zhangyong Hu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
- Department of Infection Disease, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan Province, China
| | - Jinliang Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
- * E-mail:
| | - Yangping Wu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Guolian Xiong
- Department of Infection Disease, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan Province, China
| | - Yali Wang
- Department of Infection Disease, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan Province, China
| | - Jun Yang
- Department of Infection Disease, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan Province, China
| | - Lan Deng
- Department of Infection Disease, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan Province, China
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19
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Li Y, Han MF, Li WN, Shi AC, Zhang YY, Wang HY, Wang FX, Li L, Wu T, Ding L, Chen T, Yan WM, Luo XP, Ning Q. SOCS3 expression correlates with severity of inflammation in mouse hepatitis virus strain 3-induced acute liver failure and HBV-ACLF. ACTA ACUST UNITED AC 2014; 34:348-353. [PMID: 24939297 DOI: 10.1007/s11596-014-1281-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 05/14/2014] [Indexed: 12/27/2022]
Abstract
Recently, suppressor of cytokine signaling-3 (SOCS3) has been shown to be an inducible endogenous negative regulator of Janus kinase/signal transducers and activators of transcription (JAK/STAT) pathway which is relevant in inflammatory response, while its functions in acute liver failure and HBV-induced acute-on-chronic liver failure (HBV-ACLF) have not been fully elucidated. In this study, we explored the role of SOCS3 in the development of mouse hepatitis virus strain 3 (MHV-3)-induced acute liver failure and its expression in liver and peripheral blood mononuclear cells (PBMCs) of patients with HBV-ACLF. Inflammation-related gene expression was detected by real-time PCR, immunohistochemistry and Western blotting. The correlation between SOCS3 level and liver injury was studied. Our results showed that the SOCS3 expression was significantly elevated in both the liver tissue and PBMCs from patients with HBV-ACLF compared to mild chronic hepatitis B (CHB). Moreover, a time course study showed that SOCS3 level was increased remarkably in the liver of BALB/cJ mice at 72 h post-infection. Pro-inflammatory cytokines, interleukin (IL)-1β, IL-6, and tumor necrosis factor (TNF)-α, were also increased significantly at 72 h post-infection. There was a close correlation between hepatic SOCS3 level and IL-6, and the severity of liver injury defined by alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels, respectively. These data suggested that SOCS3 may play a pivotal role in the pathogenesis of MHV-3-induced acute liver failure and HBV-ACLF.
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MESH Headings
- Adult
- Alanine Transaminase/blood
- Animals
- Aspartate Aminotransferases/blood
- Blotting, Western
- End Stage Liver Disease/genetics
- End Stage Liver Disease/pathology
- End Stage Liver Disease/virology
- Female
- Gene Expression
- Hepatitis, Viral, Animal/genetics
- Hepatitis, Viral, Animal/pathology
- Hepatitis, Viral, Animal/virology
- Host-Pathogen Interactions
- Humans
- Interleukin-1beta/genetics
- Interleukin-1beta/metabolism
- Interleukin-6/genetics
- Interleukin-6/metabolism
- Leukocytes, Mononuclear/metabolism
- Leukocytes, Mononuclear/virology
- Liver Failure, Acute/genetics
- Liver Failure, Acute/pathology
- Liver Failure, Acute/virology
- Male
- Mice, Inbred BALB C
- Middle Aged
- Murine hepatitis virus/physiology
- Reverse Transcriptase Polymerase Chain Reaction
- Severity of Illness Index
- Suppressor of Cytokine Signaling 3 Protein
- Suppressor of Cytokine Signaling Proteins/blood
- Suppressor of Cytokine Signaling Proteins/genetics
- Suppressor of Cytokine Signaling Proteins/metabolism
- Tumor Necrosis Factor-alpha/genetics
- Tumor Necrosis Factor-alpha/metabolism
- Young Adult
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Affiliation(s)
- Yong Li
- Department and Institute of Infectious Diseases, University of Science and Technology, Wuhan, 430030, China
| | - Mei-Fang Han
- Department and Institute of Infectious Diseases, University of Science and Technology, Wuhan, 430030, China
| | - Wei-Na Li
- Department and Institute of Infectious Diseases, University of Science and Technology, Wuhan, 430030, China
| | - Ai-Chao Shi
- Department and Institute of Infectious Diseases, University of Science and Technology, Wuhan, 430030, China
| | - Yuan-Ya Zhang
- Department and Institute of Infectious Diseases, University of Science and Technology, Wuhan, 430030, China
| | - Hong-Yan Wang
- Department and Institute of Infectious Diseases, University of Science and Technology, Wuhan, 430030, China
| | - Fa-Xi Wang
- Department and Institute of Infectious Diseases, University of Science and Technology, Wuhan, 430030, China
| | - Lan Li
- Department and Institute of Infectious Diseases, University of Science and Technology, Wuhan, 430030, China
| | - Ting Wu
- Department and Institute of Infectious Diseases, University of Science and Technology, Wuhan, 430030, China
| | - Lin Ding
- Department and Institute of Infectious Diseases, University of Science and Technology, Wuhan, 430030, China
| | - Tao Chen
- Department and Institute of Infectious Diseases, University of Science and Technology, Wuhan, 430030, China
| | - Wei-Ming Yan
- Department and Institute of Infectious Diseases, University of Science and Technology, Wuhan, 430030, China
| | - Xiao-Ping Luo
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong, University of Science and Technology, Wuhan, 430030, China
| | - Qin Ning
- Department and Institute of Infectious Diseases, University of Science and Technology, Wuhan, 430030, China.
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Immunochemoradiotherapy for patients with oral squamous cell carcinoma: augmentation of OK-432-induced helper T cell 1 response by 5-FU and X-ray irradiation. Neoplasia 2014; 15:805-14. [PMID: 23814492 DOI: 10.1593/neo.13488] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Revised: 02/18/2013] [Accepted: 04/10/2013] [Indexed: 12/26/2022] Open
Abstract
Eighty-one patients with oral squamous cell carcinoma (OSCC) received oral fluoropyrimidine UFT and radiotherapy (RT) with or without an immunotherapeutic agent OK-432. Both overall survival and progression-free survival of patients who received RT + UFT + OK-432 were significantly longer than those of patients who received RT + UFT (P = .0075 and P = .0175, respectively). Clinical response was also more favorable in RT + UFT + OK-432 group than in RT + UFT group (P = .0066). Next, in vitro experiments were conducted to examine the effect of 5-fluorouracil (5-FU) and X-ray irradiation in OK-432-induced immunity. Human peripheral blood mononuclear cells stimulated with OK-432 produced helper T cell 1 (Th1)-type cytokines as well as interleukin-10 (IL-10) and transforming growth factor-β (TGF-β), which are produced by Th2 and regulatory T cells (Tregs), respectively, and are inhibitory in antitumor immunity. OK-432-induced IL-10 and TGF-β but not Th1 cytokines were significantly inhibited by 5-FU and/or X-ray. 5-FU and X-ray also inhibited the expression of mRNAs for GATA-3 and Foxp3, which are transcription factors for Th2 and Tregs, respectively, but not for T-bet, a transcription factor for Th1. In addition, 5-FU and X-ray decreased the expression of mRNAs for suppressor of cytokine signaling 1 (SOCS1) and SOCS3. Antisense oligonucleotides for SOCS1 and SOCS3 markedly reduced OK-432-induced IL-10 and TGF-β. This is the first report clearly demonstrating that OK-432-based immunotherapy significantly enhanced the therapeutic effects of chemoradiotherapy in patients with OSCC as well as elucidating the mechanism of the synergistic effect of immunochemoradiotherapy in which 5-FU and radiation enhanced OK-432-induced Th1 response mediated by the inhibition of SOCS1 and SOCS3 gene expression.
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Li Y, Tian Y, Zhu W, Gong J, Zhang W, Yu C, Gu L, Li N, Li J. Triptolide induces suppressor of cytokine signaling-3 expression and promotes lamina propria mononuclear cells apoptosis in Crohn's colitis. Int Immunopharmacol 2013; 16:268-74. [DOI: 10.1016/j.intimp.2013.04.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Revised: 03/30/2013] [Accepted: 04/12/2013] [Indexed: 12/22/2022]
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22
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Li B. Using Systems Biology Approaches to Predict New Players in the Innate Immune System. Bioinformatics 2013:690-724. [DOI: 10.4018/978-1-4666-3604-0.ch037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023] Open
Abstract
Toll-like receptors (TLRs) are critical players in the innate immune response to pathogens. However, transcriptional regulatory mechanisms in the TLR activation pathways are still relatively poorly characterized. To address this question, the author of this chapter applied a systematic approach to predict transcription factors that temporally regulate differentially expressed genes under diverse TLR stimuli. Time-course microarray data were selected from mouse bone marrow-derived macrophages stimulated by six TLR agonists. Differentially regulated genes were clustered on the basis of their dynamic behavior. The author then developed a computational method to identify positional overlapping transcription factor (TF) binding sites in each cluster, so as to predict possible TFs that may regulate these genes. A second microarray dataset, on wild-type, Myd88-/- and Trif-/- macrophages stimulated by lipopolysaccharide (LPS), was used to provide supporting evidence on this combined approach. Overall, the author was able to identify known TLR TFs, as well as to predict new TFs that may be involved in TLR signaling.
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Affiliation(s)
- Bin Li
- Merrimack Pharmaceuticals, USA
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23
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Spence S, Fitzsimons A, Boyd C, Kessler J, Fitzgerald D, Elliott J, Gabhann J, Smith S, Sica A, Hams E, Saunders S, Jefferies C, Fallon P, McAuley D, Kissenpfennig A, Johnston J. RETRACTED: Suppressors of Cytokine Signaling 2 and 3 Diametrically Control Macrophage Polarization. Immunity 2013. [DOI: 10.1016/j.immuni.2012.09.013] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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24
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Epigenetic mechanisms through which Toll-like receptor-9 drives idiopathic pulmonary fibrosis progression. Ann Am Thorac Soc 2012; 9:172-6. [PMID: 22802293 DOI: 10.1513/pats.201201-002aw] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Patients with idiopathic pulmonary fibrosis (IPF) survive a median of 3 years after diagnosis, but a high degree of variability in longitudinal disease progression has been observed. Unfortunately, physiology and clinical parameters determined at the time of diagnosis have proven inaccurate in predicting the rate at which IPF ultimately progresses. A mechanistic explanation for disease progression in patients with IPF is presently unclear, but we have recently shown that hypomethylated CpG DNA drives the rapid progression of fibrotic lung disease through the differentiation of pulmonary fibroblasts into myofibroblasts through a TLR9-dependent mechanism. Furthermore, we recently reported that the clinical progression of IPF might be a consequence of aberrant microRNA processing. Using this framework of data, we are presently addressing the following specific hypothesis: hypomethylated CpG DNA activation in pulmonary fibroblasts leads to aberrant micro RNA processing, thereby promoting the rapid progression of IPF.
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Derive M, Bouazza Y, Alauzet C, Gibot S. Myeloid-derived suppressor cells control microbial sepsis. Intensive Care Med 2012; 38:1040-9. [PMID: 22552586 DOI: 10.1007/s00134-012-2574-4] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2011] [Accepted: 02/28/2012] [Indexed: 12/11/2022]
Abstract
PURPOSE To investigate the role of myeloid-derived suppressor cells (MDSCs) during sepsis in mice. MDSCs are a heterogeneous population of cells that expand during cancer, inflammation and infection. These cells, by their ability to suppress T lymphocyte proliferation, regulate immune responses during various diseases. Their role during microbial infections is scarcely known. METHODS Septic shock was induced by caecal ligation and puncture in adult male BALB/c mice; sham-operated animals served as controls. Animals were killed under anaesthesia to harvest blood and organs. RESULTS Polymicrobial sepsis induced a progressive accumulation of MDSCs in spleens that were found to be enlarged in surviving mice. MDSCs harvested at day 10 after the onset of infection were highly responsive to LPS in terms of cytokines secretion, NF-kB activation, ROS production and arginase I activity, whereas early-appearing (day 3) MDSCs poorly responded to this stimulus. By contrast, both day 3 and day 10 MDSCs were able to inhibit T cell proliferation. Adoptive transfer of day 10 MDSCs to septic mice attenuated peritoneal cytokine production, increased bacterial clearance and dramatically improved survival rate. CONCLUSION These results provide new information on the role of MDSCs, suggesting a protective effect during sepsis. Pharmacologic agents known to promote the expansion of MDSCs should thus be further studied for sepsis treatment.
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Affiliation(s)
- Marc Derive
- Groupe Choc, contrat Avenir INSERM, Faculté de Médecine, Nancy Université, Nancy, France
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26
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Eberle ME, Dalpke AH. Dectin-1 Stimulation Induces Suppressor of Cytokine Signaling 1, Thereby Modulating TLR Signaling and T Cell Responses. THE JOURNAL OF IMMUNOLOGY 2012; 188:5644-54. [DOI: 10.4049/jimmunol.1103068] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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27
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Bansal K, Trinath J, Chakravortty D, Patil SA, Balaji KN. Pathogen-specific TLR2 protein activation programs macrophages to induce Wnt-beta-catenin signaling. J Biol Chem 2011; 286:37032-44. [PMID: 21862586 DOI: 10.1074/jbc.m111.260414] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Innate immunity recognizes and resists various pathogens; however, the mechanisms regulating pathogen versus nonpathogen discrimination are still imprecisely understood. Here, we demonstrate that pathogen-specific activation of TLR2 upon infection with Mycobacterium bovis BCG, in comparison with other pathogenic microbes, including Salmonella typhimurium and Staphylococcus aureus, programs macrophages for robust up-regulation of signaling cohorts of Wnt-β-catenin signaling. Signaling perturbations or genetic approaches suggest that infection-mediated stimulation of Wnt-β-catenin is vital for activation of Notch1 signaling. Interestingly, inducible NOS (iNOS) activity is pivotal for TLR2-mediated activation of Wnt-β-catenin signaling as iNOS(-/-) mice demonstrated compromised ability to trigger activation of Wnt-β-catenin signaling as well as Notch1-mediated cellular responses. Intriguingly, TLR2-driven integration of iNOS/NO, Wnt-β-catenin, and Notch1 signaling contributes to its capacity to regulate the battery of genes associated with T(Reg) cell lineage commitment. These findings reveal a role for differential stimulation of TLR2 in deciding the strength of Wnt-β-catenin signaling, which together with signals from Notch1 contributes toward the modulation of a defined set of effector functions in macrophages and thus establishes a conceptual framework for the development of novel therapeutics.
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Affiliation(s)
- Kushagra Bansal
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore 560012, India
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28
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Li B. Using Systems Biology Approaches to Predict New Players in the Innate Immune System. HANDBOOK OF RESEARCH ON COMPUTATIONAL AND SYSTEMS BIOLOGY 2011:428-477. [DOI: 10.4018/978-1-60960-491-2.ch020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Toll-like receptors (TLRs) are critical players in the innate immune response to pathogens. However, transcriptional regulatory mechanisms in the TLR activation pathways are still relatively poorly characterized. To address this question, the author of this chapter applied a systematic approach to predict transcription factors that temporally regulate differentially expressed genes under diverse TLR stimuli. Time-course microarray data were selected from mouse bone marrow-derived macrophages stimulated by six TLR agonists. Differentially regulated genes were clustered on the basis of their dynamic behavior. The author then developed a computational method to identify positional overlapping transcription factor (TF) binding sites in each cluster, so as to predict possible TFs that may regulate these genes. A second microarray dataset, on wild-type, Myd88-/- and Trif-/- macrophages stimulated by lipopolysaccharide (LPS), was used to provide supporting evidence on this combined approach. Overall, the author was able to identify known TLR TFs, as well as to predict new TFs that may be involved in TLR signaling.
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Affiliation(s)
- Bin Li
- Merrimack Pharmaceuticals, USA
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29
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Xie Y, Chen YX. Role of negative regulators of TLR/IL-1 signaling in the pathogenesis of inflammatory bowel disease. Shijie Huaren Xiaohua Zazhi 2010; 18:3107-3113. [DOI: 10.11569/wcjd.v18.i29.3107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Inflammatory bowel disease (IBD) is an autoimmune-like disorder characterized by chronic, idiopathic inflammation of the intestinal mucosa. Ulcerative colitis and Crohn's disease are known as the two forms of IBD. Although the etiology of IBD is still unclear, many experimental and clinical observations suggest the involvement of environmental, hereditary and immunological factors in the pathogenesis of IBD. Recent studies have showed that IBD is associated with immunologic dysfunction. Toll-like receptors (TLR) are pathogen pattern recognition receptors expressed by immune and nonimmune cells in the intestinal mucosa that play a central role in the initiation of innate immune responses and subsequent adaptive immune responses to microbial pathogens. In recent years there has been rapid progress in our understanding of the role of positive regulation of TLR signaling in the pathogenesis of IBD. However, the role of negative regulators of TLR signaling in this process remains unclear and will therefore be summarized in this paper.
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De Domenico I, Zhang TY, Koening CL, Branch RW, London N, Lo E, Daynes RA, Kushner JP, Li D, Ward DM, Kaplan J. Hepcidin mediates transcriptional changes that modulate acute cytokine-induced inflammatory responses in mice. J Clin Invest 2010; 120:2395-405. [PMID: 20530874 DOI: 10.1172/jci42011] [Citation(s) in RCA: 144] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2009] [Accepted: 04/07/2010] [Indexed: 02/06/2023] Open
Abstract
Hepcidin is a peptide hormone that regulates iron homeostasis and acts as an antimicrobial peptide. It is expressed and secreted by a variety of cell types in response to iron loading and inflammation. Hepcidin mediates iron homeostasis by binding to the iron exporter ferroportin, inducing its internalization and degradation via activation of the protein kinase Jak2 and the subsequent phosphorylation of ferroportin. Here we have shown that hepcidin-activated Jak2 also phosphorylates the transcription factor Stat3, resulting in a transcriptional response. Hepcidin treatment of ferroportin-expressing mouse macrophages showed changes in mRNA expression levels of a wide variety of genes. The changes in transcript levels for half of these genes were a direct effect of hepcidin, as shown by cycloheximide insensitivity, and dependent on the presence of Stat3. Hepcidin-mediated transcriptional changes modulated LPS-induced transcription in both cultured macrophages and in vivo mouse models, as demonstrated by suppression of IL-6 and TNF-alpha transcript and secreted protein. Hepcidin-mediated transcription in mice also suppressed toxicity and morbidity due to single doses of LPS, poly(I:C), and turpentine, which is used to model chronic inflammatory disease. Most notably, we demonstrated that hepcidin pretreatment protected mice from a lethal dose of LPS and that hepcidin-knockout mice could be rescued from LPS toxicity by injection of hepcidin. The results of our study suggest a new function for hepcidin in modulating acute inflammatory responses.
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Affiliation(s)
- Ivana De Domenico
- Department of Internal Medicine, School of Medicine, University of Utah, Salt Lake City, Utah 84132, USA.
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The expression of SOCS1 and TLR4-NFkappaB pathway molecules in neoplastic cells as potential biomarker for the aggressive tumor phenotype in laryngeal carcinoma. Folia Histochem Cytobiol 2010; 47:401-10. [PMID: 20164024 DOI: 10.2478/v10042-009-0075-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Suppressor of cytokine signaling 1 (SOCS1) is the key regulator of cytokine-mediated innate and adaptive immunity. One of the molecular mechanisms of SOCS1 is connected with inhibition of TLR4-NFkappaB pathway. The relationships among these molecules in laryngeal carcinoma are not exactly known. In this preliminary study we focused on their special activity and role in regulation of development and progression of laryngeal carcinoma. To investigate NFkappaB (p65 subunit) nuclear and cytoplasmic expression in 45 tumor samples of advanced laryngeal carcinoma IHC staining was performed. To determine the mRNA expression levels of TLR4, IRAK1, TRAF6 and SOCS1 in isolated neoplasm cells and non-cancerous adjacent mucosa epithelial cells RT-PCR was used. The invasiveness of laryngeal carcinomas was evaluated according to tumor front grading, TFG, which included tumor-related features (cytoplasmic differentiation, nuclear polymorphism, number of mitoses) and adjacent stroma-related characteristics of the peripheral edge of tumor infiltration (mode of infiltration, depth of invasion and plasmalymphocytic infiltration). The relationships between pT, pN status, the histological G grade, certain clinicopathological characteristics as well as postoperative observation time and the mRNA expression of the molecules mentioned earlier were investigated. Significant differences of TLR4-NFkappaB pathway molecules and SOCS1 mRNA expression in laryngeal tumor cells and normal adjacent mucosa cells as well as significant interconnections of TLR4, SOCS1 and NFkappaB(p65) in isolated tumor cells were obtained. This preliminary study demonstrated that the expression of SOCS1 and TLR4-NFkappaB pathway molecules had a strong association with the aggressiveness of laryngeal carcinoma. Positive relationships of TRAF6 in tumor margin cells with the histological grade and the mode of tumor invasion as well as the TFG total score were highlighted. Significant positive correlations were found between the TLR4 in tumor central cells and the TFG total score. Negative relationships of SOCS1 in tumor central cells with the histological grade were also noted. Significant positive correlations were found between the cytoplasmic NFkappaB(p65) and the mode of invasion as well as TFG total score. Our findings confirmed the importance of SOCS1 and TLR4-NFkappaB pathway molecules as potential biomarkers for assessment of the aggressive tumor phenotype in laryngeal carcinoma.
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Dagvadorj J, Naiki Y, Tumurkhuu G, Noman ASM, Iftakhar-E-Khuda I, Komatsu T, Koide N, Yoshida T, Takashi Yokochi. Tumor necrosis factor-a augments lipopolysaccharide-induced suppressor of cytokine signalling 3 (SOCS-3) protein expression by preventing the degradation. Immunology 2010; 129:97-104. [PMID: 20050332 DOI: 10.1111/j.1365-2567.2009.03154.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The regulatory role of tumour necrosis factor-a (TNF-a) on the expression of suppressor of cytokine signalling 3 (SOCS-3) in response to lipopolysaccharide (LPS) was examined using peritoneal macrophages from TNF-a-deficient mice. The LPS-induced SOCS-3 expression was markedly augmented in macrophages from wild-type mice whereas such augmentation was not seen in the cells from TNF-a-deficient mice. However, there was no significant difference in the level of SOCS-3 messenger RNA expression between macrophages from wild-type mice and those from TNF-a-deficient mice. The addition of exogenous TNF-a augmented the LPS-induced SOCS-3 expression in macrophages from TNF-a-deficient mice. The pulse chase analysis suggested augmented degradation of LPS-induced SOCS-3 protein in macrophages from TNF-a-deficient mice. Moreover, MG 132, a 26S proteasome inhibitor, sustained the LPS-induced SOCS-3 expression in those cells. The tyrosine phosphorylation of SOCS-3 was definitely induced in LPS-stimulated macrophages from TNF-a-deficient mice but not wild-type mice. A tyrosine phosphatase inhibitor enhanced the tyrosine phosphorylation of SOCS-3 in wild-type mice and accelerated the degradation. Therefore, it was suggested that TNF-a prevented the degradation of SOCS-3 protein via inhibition of the tyrosine phosphorylation in LPS-stimulated macrophages.
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Affiliation(s)
- Jargalsaikhan Dagvadorj
- Department of Microbiology and Immunology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
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Girolami EI, Bouhy D, Haber M, Johnson H, David S. Differential expression and potential role of SOCS1 and SOCS3 in Wallerian degeneration in injured peripheral nerve. Exp Neurol 2009; 223:173-82. [PMID: 19576891 DOI: 10.1016/j.expneurol.2009.06.018] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2009] [Revised: 06/23/2009] [Accepted: 06/24/2009] [Indexed: 01/27/2023]
Abstract
Pro-inflammatory chemokines and cytokines play an important role in Wallerian degeneration (WD) after peripheral nerve injury. These pro-inflammatory signals are "turned-off" in a timely manner to ensure that the inflammatory response in the injured nerve is limited. The factors that regulate the turning-off of the pro-inflammatory state are not fully understood. The suppressors of cytokine signaling (SOCS) proteins are potential candidates that could limit the inflammatory response by acting to regulate cytokine signaling at the intracellular level. In this work we show that the expression SOCS1 and SOCS3 proteins differ from each other during WD in the mouse sciatic nerve after cut/ligation and crush injuries. SOCS1 is mainly expressed by macrophages and its expression is inversely correlated with phosphorylation of JAK2 and STAT3 signaling proteins and the expression of pro-inflammatory cytokines IL-1beta and TNFalpha. In addition, treatment of cut/ligated nerves, which express lower levels of SOCS1 as compared to crush injury, with a SOCS1 mimetic peptide leads to a decrease in macrophage numbers at 14 days post-injury and reduces IL-1beta mRNA expression 1 day post-injury. In contrast, SOCS3 expression is restricted mainly to Schwann cells and is negatively correlated with the expression of IL-6 and LIF. These data suggest that SOCS1 and SOCS3 may play different roles in WD and provide a better understanding of some of the potential regulatory mechanisms that may control inflammation and regeneration in the injured peripheral nerve.
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Affiliation(s)
- Elizabeth I Girolami
- Centre for Research in Neuroscience, The Research Institute of the McGill University Health Centre, Livingston Hall, Room L7-210, 1650 Cedar Ave., Montreal, Quebec, Canada H3G 1A4
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Salminen A, Ojala J, Kauppinen A, Kaarniranta K, Suuronen T. Inflammation in Alzheimer's disease: Amyloid-β oligomers trigger innate immunity defence via pattern recognition receptors. Prog Neurobiol 2009; 87:181-94. [DOI: 10.1016/j.pneurobio.2009.01.001] [Citation(s) in RCA: 258] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Prolonged classical NF-kappaB activation prevents autophagy upon E. coli stimulation in vitro: a potential resolving mechanism of inflammation. Mediators Inflamm 2008; 2008:725854. [PMID: 18566685 PMCID: PMC2430012 DOI: 10.1155/2008/725854] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2007] [Accepted: 02/15/2008] [Indexed: 12/19/2022] Open
Abstract
Activation of NF-kappaB is known to prevent apoptosis but may also act as proapoptotic factor in order to eliminate inflammatory cells. Here, we show that classical NF-kappaB activation in RAW 264.7 and bone marrow-derived macrophages upon short E. coli coculture is necessary to promote cell death at late time points. At 48 hours subsequent to short-term, E. coli challenge increased survival of NF-kappaB-suppressed macrophages was associated with pattern of autophagy whereas macrophages with normal NF-kappaB signalling die. Cell death of normal macrophages was indicated by preceding downregulation of autophagy associated genes atg5 and beclin1. Restimulation of macrophages with LPS at 48 hours after E. coli treatment results in augmented proinflammatory cytokine production in NF-kappaB-suppressed macrophages compared to control cells. We thus demonstrate that classical NF-kappaB activation inhibits autophagy and promotes delayed programmed cell death. This mechanism is likely to prevent the recovery of inflammatory cells and thus contributes to the resolution of inflammation.
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Sakurai H, Tashiro K, Kawabata K, Yamaguchi T, Sakurai F, Nakagawa S, Mizuguchi H. Adenoviral Expression of Suppressor of Cytokine Signaling-1 Reduces Adenovirus Vector-Induced Innate Immune Responses. THE JOURNAL OF IMMUNOLOGY 2008; 180:4931-8. [DOI: 10.4049/jimmunol.180.7.4931] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Park Y, Shon SK, Kim A, Kim KI, Yang Y, Cho DH, Lee MS, Lim JS. SOCS1 induced by NDRG2 expression negatively regulates STAT3 activation in breast cancer cells. Biochem Biophys Res Commun 2007; 363:361-7. [PMID: 17888401 DOI: 10.1016/j.bbrc.2007.08.195] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2007] [Accepted: 08/28/2007] [Indexed: 12/22/2022]
Abstract
Although NDRG2 inactivation has recently been found to have an important role in some tumorigenesis, its role in intracellular signal transduction pathways remains poorly defined. In the present study, we demonstrate that NDRG2 overexpression in malignant breast cancer cells specifically inhibits Akt phosphorylation and induces phosphorylation of p38 MAP kinase and SAPK/JNK. In addition, we investigated whether NDRG2 expression affects JAK/STAT- or mitogen-activated protein kinase-mediated signal activation. JAK2 or STAT3 activation in both resting and IGF-stimulating cells was remarkably inhibited by NDRG2 expression. Furthermore, NDRG2 has been found to highly up-regulate the expression level of SOCS1 mRNA and protein. We have found that NDRG2 was able to regulate cytokine signaling in breast cancer cells through the regulation of SOCS1 expression. Finally, inhibition of p38 MAPK activity blocked the induction of SOCS1 expression by NDRG2, resulting in the recovery of STAT3 phosphorylation level. Together, these data demonstrate that NDRG2 expression in breast cancer cells is able to inhibit STAT3 activation via SOCS1 induction in a p38 MAPK dependent manner, implicating NDRG2 as a growth inhibitory gene in signal transduction pathways of breast tumor cells.
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Affiliation(s)
- Yongjin Park
- Department of Biological Sciences and the Research Center for Women's Diseases, Sookmyung Women's University, Chungpa-Dong, Yongsan-Gu, Seoul 140-742, Republic of Korea
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Loving CL, Brockmeier SL, Ma W, Richt JA, Sacco RE. Innate cytokine responses in porcine macrophage populations: evidence for differential recognition of double-stranded RNA. THE JOURNAL OF IMMUNOLOGY 2007; 177:8432-9. [PMID: 17142740 DOI: 10.4049/jimmunol.177.12.8432] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Pulmonary airways are vulnerable to infection because of exposure to Ag during respiration. The innate, antiviral response must be activated rapidly after pathogen recognition, and alveolar macrophages (AMphi) play a role in this response. TLR3 and protein kinase R (PKR) recognize dsRNA, a replication intermediate of RNA viruses, and initiate transcription of IFN-alphabeta. In this study, synthetic dsRNA poly(I:C) was used to investigate innate responses of porcine AMphi compared with responses of peritoneal macrophages (PMphi). Poly(I:C) triggered IFN-alphabeta in AMphi and PMphi, but levels in AMphi were higher. In contrast, mRNA levels of IFN-stimulated genes, Mx and PKR, were greater in PMphi than AMphi. Low levels of Mx and PKR transcription in AMphi were not due to deficient type I IFN receptor signaling, as exogenous IFN-alpha induced nuclear translocation of phosphorylated STAT1. To investigate the differential mechanism by which IFN-alphabeta transcription is activated in AMphi and PMphi, 2-aminopurine (2-AP) was used to block dsRNA-mediated activation of PKR. IFN-alphabeta, Mx, and PKR mRNA levels in AMphi after poly(I:C) treatment were unaffected by 2-AP; conversely, transcription of IFN-alphabeta, Mx, or PKR remained at baseline levels in PMphi. Phosphorylated PKR was detected in PMphi, but not AMphi, after poly(I:C) treatment. In addition to IFN-alphabeta gene induction, mRNA levels of TNF-alpha and RANTES were higher in AMphi than PMphi after poly(I:C) stimulation. In summary, differential dsRNA-induced cytokine expression patterns between AMphi and PMphi provide evidence that dsRNA recognition and subsequent signaling is likely mediated via TLR3 in AMphi and PKR in PMphi.
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Affiliation(s)
- Crystal L Loving
- Immunobiology Graduate Program, Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA
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Schiller M, Metze D, Luger TA, Grabbe S, Gunzer M. Immune response modifiers--mode of action. Exp Dermatol 2006; 15:331-41. [PMID: 16630072 DOI: 10.1111/j.0906-6705.2006.00414.x] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The innate immune system governs the interconnecting pathways of microbial recognition, inflammation, microbial clearance, and cell death. A family of evolutionarily conserved receptors, known as the Toll-like receptors (TLRs), is crucial in early host defense against invading pathogens. Upon TLR stimulation, nuclear factor-kappaB activation and the interferon (IFN)-regulatory factor 3 pathway initiate production of pro-inflammatory cytokines, such as interleukin-1 and tumor necrosis factor-alpha, and production of type I IFNs (IFN-alpha and IFN-beta), respectively. The innate immunity thereby offers diverse targets for highly selective therapeutics, such as small molecular synthetic compounds that modify innate immune responses. The notion that activation of the innate immune system is a prerequisite for the induction of acquired immunity raised interest in these immune response modifiers as potential therapeutics for viral infections and various tumors. A scenario of dermal events following skin cancer treatment with imiquimod presumably comprises (i) an initial low amount of pro-inflammatory cytokine secretion by macrophages and dermal dendritic cells (DCs), thereby (ii) attracting an increasing number type I IFN-producing plasmacytoid DCs (pDCs) from the blood; (iii) Langerhans cells migrate into draining lymph nodes, leading to an increased presentation of tumor antigen in the draining lymph node, and (iv) consequently an increased generation of tumor-specific T cells and finally (v) an accumulation of tumoricidal effector cells in the treated skin area. The induction of predominately T helper (Th)1-type cytokine profiles by TLR agonists such as imiquimod might have further benefits by shifting the dominant Th2-type response in atopic diseases such as asthma and atopic dermatitis to a more potent Th1 response.
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Affiliation(s)
- Meinhard Schiller
- Department of Dermatology and Ludwig Boltzmann Institute for Cell Biology and Immunobiology of the Skin, University Hospital Münster, Münster, Germany.
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Wong PK, Egan PJ, Croker BA, O’Donnell K, Sims NA, Drake S, Kiu H, McManus EJ, Alexander WS, Roberts AW, Wicks IP. SOCS-3 negatively regulates innate and adaptive immune mechanisms in acute IL-1-dependent inflammatory arthritis. J Clin Invest 2006; 116:1571-81. [PMID: 16710471 PMCID: PMC1462939 DOI: 10.1172/jci25660] [Citation(s) in RCA: 161] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2005] [Accepted: 03/28/2006] [Indexed: 01/25/2023] Open
Abstract
RA is an autoimmune disease characterized by sustained imbalance between pro- and antiinflammatory immune mechanisms. The SOCS proteins are negative regulators of cytokine signaling, but to date there has been little information on their function in disease. The generation of Socs3(-/Delta vav) mice, which lack SOCS-3 in the hematopoietic and endothelial cell compartment, allowed us to explore the role of endogenous SOCS-3 during acute inflammatory arthritis. Joint inflammation in Socs3(-/Delta vav) mice was particularly severe and was characterized by increased numbers of neutrophils in the inflamed synovium, bone marrow, peripheral blood, and spleen. These features were most likely due to increased production of and enhanced responsiveness to G-CSF and IL-6 during arthritis in these mice. Local osteoclast generation and bone destruction were also dramatically increased in the absence of SOCS-3, as was macrophage activation. Finally, SOCS-3 was found to negatively regulate CD4+ T lymphocyte activation, including production of the pleiotropic cytokine IL-17. The absence of SOCS-3 therefore had dramatic effects in this disease model, with a broader impact on cellular responses than SOCS-1 deficiency. These findings provide direct in vivo evidence that endogenous SOCS-3 is a critical negative regulator of multiple cell types orchestrating inflammatory joint disease.
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Affiliation(s)
- Peter K.K. Wong
- Reid Rheumatology Laboratory, Division of Autoimmunity and Transplantation, and
Cancer and Hematology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.
Department of Medicine, St. Vincent’s Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Paul J. Egan
- Reid Rheumatology Laboratory, Division of Autoimmunity and Transplantation, and
Cancer and Hematology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.
Department of Medicine, St. Vincent’s Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Ben A. Croker
- Reid Rheumatology Laboratory, Division of Autoimmunity and Transplantation, and
Cancer and Hematology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.
Department of Medicine, St. Vincent’s Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Kristy O’Donnell
- Reid Rheumatology Laboratory, Division of Autoimmunity and Transplantation, and
Cancer and Hematology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.
Department of Medicine, St. Vincent’s Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Natalie A. Sims
- Reid Rheumatology Laboratory, Division of Autoimmunity and Transplantation, and
Cancer and Hematology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.
Department of Medicine, St. Vincent’s Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Sarah Drake
- Reid Rheumatology Laboratory, Division of Autoimmunity and Transplantation, and
Cancer and Hematology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.
Department of Medicine, St. Vincent’s Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Hiu Kiu
- Reid Rheumatology Laboratory, Division of Autoimmunity and Transplantation, and
Cancer and Hematology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.
Department of Medicine, St. Vincent’s Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Edward J. McManus
- Reid Rheumatology Laboratory, Division of Autoimmunity and Transplantation, and
Cancer and Hematology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.
Department of Medicine, St. Vincent’s Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Warren S. Alexander
- Reid Rheumatology Laboratory, Division of Autoimmunity and Transplantation, and
Cancer and Hematology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.
Department of Medicine, St. Vincent’s Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Andrew W. Roberts
- Reid Rheumatology Laboratory, Division of Autoimmunity and Transplantation, and
Cancer and Hematology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.
Department of Medicine, St. Vincent’s Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Ian P. Wicks
- Reid Rheumatology Laboratory, Division of Autoimmunity and Transplantation, and
Cancer and Hematology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.
Department of Medicine, St. Vincent’s Hospital, University of Melbourne, Melbourne, Victoria, Australia
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Tang J, Raines EW. Are suppressors of cytokine signaling proteins recently identified in atherosclerosis possible therapeutic targets? Trends Cardiovasc Med 2006; 15:243-9. [PMID: 16226678 DOI: 10.1016/j.tcm.2005.08.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2005] [Revised: 08/03/2005] [Accepted: 08/04/2005] [Indexed: 10/25/2022]
Abstract
Atherosclerosis is a slowly progressing chronic inflammatory disease characterized by focal arterial lesions that can ultimately occlude the entire blood vessel and lead to sudden death. Lesions associated with cardiovascular events are those enriched in macrophages and other inflammatory cells. Activation of inflammatory cells within lesions induces the release of cytokines which promotes more inflammation and associated tissue damage if cytokine signaling pathways remain unregulated. Thus, pathways capable of suppressing proinflammatory cytokine signaling hold the potential to limit life-threatening cardiovascular events caused by atherogenesis. This review focuses on suppressors of cytokine signaling proteins recently identified in the atherosclerosis-prone ApoE(-/-) mouse and provides perspectives of their potential for intervention in atherosclerotic lesion progression.
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Affiliation(s)
- Jingjing Tang
- Department of Pathology, University of Washington, Seattle, WA, USA
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Mansell A, Smith R, Doyle SL, Gray P, Fenner JE, Crack PJ, Nicholson SE, Hilton DJ, O'Neill LAJ, Hertzog PJ. Suppressor of cytokine signaling 1 negatively regulates Toll-like receptor signaling by mediating Mal degradation. Nat Immunol 2006; 7:148-55. [PMID: 16415872 DOI: 10.1038/ni1299] [Citation(s) in RCA: 397] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2005] [Accepted: 12/07/2005] [Indexed: 12/12/2022]
Abstract
Toll-like receptor (TLR) signals that initiate innate immune responses to pathogens must be tightly regulated to prevent excessive inflammatory damage to the host. The adaptor protein Mal is specifically involved in signaling via TLR2 and TLR4. We demonstrate here that after TLR2 and TLR4 stimulation Mal becomes phosphorylated by Bruton's tyrosine kinase (Btk) and then interacts with SOCS-1, which results in Mal polyubiquitination and subsequent degradation. Removal of SOCS-1 regulation potentiates Mal-dependent p65 phosphorylation and transactivation of NF-kappaB, leading to amplified inflammatory responses. These data identify a target of SOCS-1 that regulates TLR signaling via a mechanism distinct from an autocrine cytokine response. The transient activation of Mal and subsequent SOCS-1-mediated degradation is a rapid and selective means of limiting primary innate immune response.
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Affiliation(s)
- Ashley Mansell
- Centre for Functional Genomics and Human Disease, Monash Institute of Medical Research, Monash University, Melbourne, Victoria, Australia
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Martens N, Uzan G, Wery M, Hooghe R, Hooghe-Peters EL, Gertler A. Suppressor of cytokine signaling 7 inhibits prolactin, growth hormone, and leptin signaling by interacting with STAT5 or STAT3 and attenuating their nuclear translocation. J Biol Chem 2005; 280:13817-23. [PMID: 15677474 DOI: 10.1074/jbc.m411596200] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
We report here the role of one of the less studied members of the family of suppressors of cytokine signaling (SOCS), namely SOCS-7, in cytokine signaling. We demonstrate that SOCS-7 inhibits prolactin (PRL), growth hormone (GH), or leptin (LEP) signaling mediated through STAT3 and STAT5 in a dose-dependent manner. SOCS-7 also attenuated STAT3 and STAT5 signaling induced by overexpression of JH1, the catalytic subdomain of JAK2. Since SOCS-7 interacted with phosphorylated STAT3 or STAT5, we assumed that SOCS-7 acts at the level of STAT proteins. Indeed, we showed that SOCS-7 inhibits PRL- and leptin-induced STAT5 and STAT3 phosphorylation and prevented the nuclear translocation of activated STAT3. Taken together, our results indicate that SOCS-7 is a physiological dysregulator of PRL, leptin, and probably also GH signaling and that its mode of action is a novel variation of SOCS protein inhibition of cytokine-inducible STAT-mediated signal transduction.
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Affiliation(s)
- Nele Martens
- Neuroendocrine Immunology, and Pharmacology Department, Medical School, Free University, B-1090 Brussels, Belgium
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