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Liu N, Kattan WE, Mead BE, Kummerlowe C, Cheng T, Ingabire S, Cheah JH, Soule CK, Vrcic A, McIninch JK, Triana S, Guzman M, Dao TT, Peters JM, Lowder KE, Crawford L, Amini AP, Blainey PC, Hahn WC, Cleary B, Bryson B, Winter PS, Raghavan S, Shalek AK. Scalable, compressed phenotypic screening using pooled perturbations. Nat Biotechnol 2024:10.1038/s41587-024-02403-z. [PMID: 39375446 DOI: 10.1038/s41587-024-02403-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 08/26/2024] [Indexed: 10/09/2024]
Abstract
High-throughput phenotypic screens using biochemical perturbations and high-content readouts are constrained by limitations of scale. To address this, we establish a method of pooling exogenous perturbations followed by computational deconvolution to reduce required sample size, labor and cost. We demonstrate the increased efficiency of compressed experimental designs compared to conventional approaches through benchmarking with a bioactive small-molecule library and a high-content imaging readout. We then apply compressed screening in two biological discovery campaigns. In the first, we use early-passage pancreatic cancer organoids to map transcriptional responses to a library of recombinant tumor microenvironment protein ligands, uncovering reproducible phenotypic shifts induced by specific ligands distinct from canonical reference signatures and correlated with clinical outcome. In the second, we identify the pleotropic modulatory effects of a chemical compound library with known mechanisms of action on primary human peripheral blood mononuclear cell immune responses. In sum, our approach empowers phenotypic screens with information-rich readouts to advance drug discovery efforts and basic biological inquiry.
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Affiliation(s)
- Nuo Liu
- Institute for Medical Engineering and Science (IMES) and Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, USA
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
- Program in Computational and Systems Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Walaa E Kattan
- Institute for Medical Engineering and Science (IMES) and Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, USA
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Benjamin E Mead
- Institute for Medical Engineering and Science (IMES) and Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, USA
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Conner Kummerlowe
- Institute for Medical Engineering and Science (IMES) and Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, USA
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
- Program in Computational and Systems Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Thomas Cheng
- Institute for Medical Engineering and Science (IMES) and Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, USA
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Sarah Ingabire
- Institute for Medical Engineering and Science (IMES) and Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, USA
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Jaime H Cheah
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Center for the Development of Therapeutics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Christian K Soule
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Center for the Development of Therapeutics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Anita Vrcic
- Center for the Development of Therapeutics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Jane K McIninch
- Center for the Development of Therapeutics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Sergio Triana
- Institute for Medical Engineering and Science (IMES) and Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, USA
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Manuel Guzman
- Institute for Medical Engineering and Science (IMES) and Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, USA
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Tyler T Dao
- Institute for Medical Engineering and Science (IMES) and Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, USA
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Joshua M Peters
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Kristen E Lowder
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Dana Farber Cancer Institute, Boston, MA, USA
| | - Lorin Crawford
- Microsoft Research, Cambridge, MA, USA
- Center for Computational Biology, Brown University, Providence, RI, USA
- Department of Biostatistics, Brown University, Providence, RI, USA
| | | | - Paul C Blainey
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - William C Hahn
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Dana Farber Cancer Institute, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Brian Cleary
- Faculty of Computing and Data Sciences, Boston University, Boston, MA, USA
- Department of Biomedical Engineering, Boston University, Boston, MA, USA
- Department of Biology, Boston University, Boston, MA, USA
| | - Bryan Bryson
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | | | - Srivatsan Raghavan
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Dana Farber Cancer Institute, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Alex K Shalek
- Institute for Medical Engineering and Science (IMES) and Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA.
- Program in Computational and Systems Biology, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Program in Immunology, Harvard Medical School, Boston, MA, USA.
- Harvard Stem Cell Institute, Cambridge, MA, USA.
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2
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Kerneur C, Foucher E, Guillén Casas J, Colazet M, Le KS, Fullana M, Bergot E, Audemard C, Drapeau M, Louche P, Gorvel L, Rouvière MS, Boucherit N, Audebert S, Magrini E, Carnevale S, de Gassart A, Madakamutil L, Mantovani A, Garlanda C, Agaugué S, Cano CE, Olive D. BTN2A1 targeting reprograms M2-like macrophages and TAMs via SYK and MAPK signaling. Cell Rep 2024; 43:114773. [PMID: 39325623 DOI: 10.1016/j.celrep.2024.114773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 06/05/2024] [Accepted: 09/03/2024] [Indexed: 09/28/2024] Open
Abstract
Tumor-associated macrophages (TAMs), often adopting an immunosuppressive M2-like phenotype, correlate with unfavorable cancer outcomes. Our investigation unveiled elevated expression of the butyrophilin (BTN)2A1 in M2-like TAMs across diverse cancer types. We developed anti-BTN2A1 monoclonal antibodies (mAbs), and notably, one clone demonstrated a robust inhibitory effect on M2-like macrophage differentiation, inducing a shift toward an M1-like phenotype both in vitro and ex vivo in TAMs from patients with cancer. Macrophages treated with this anti-BTN2A1 mAb exhibited enhanced support for T cell proliferation and interferon-gamma (IFNγ) secretion. Mechanistically, BTN2A1 engagement induced spleen tyrosine kinase (SYK) recruitment, leading to sequential SYK and extracellular signal-regulated kinase (ERK) phosphorylation. Inhibition of SYK or ERK phosphorylation abolished M2 reprogramming upon BTN2A1 engagement. Our findings, derived from an analysis of macrophages from healthy donors and human tumors, underscore the pivotal role of BTN2A1 in immunosuppressive macrophage differentiation and function, offering potential applications in cancer immunotherapy.
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Affiliation(s)
- Clément Kerneur
- ImCheck Therapeutics, R&D Department, 13009 Marseille, France; Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, 13009 Marseille, France
| | - Etienne Foucher
- ImCheck Therapeutics, R&D Department, 13009 Marseille, France
| | | | - Magali Colazet
- ImCheck Therapeutics, R&D Department, 13009 Marseille, France
| | - Kieu-Suong Le
- ImCheck Therapeutics, R&D Department, 13009 Marseille, France
| | - Marie Fullana
- ImCheck Therapeutics, R&D Department, 13009 Marseille, France
| | - Elise Bergot
- ImCheck Therapeutics, R&D Department, 13009 Marseille, France
| | | | - Marion Drapeau
- ImCheck Therapeutics, R&D Department, 13009 Marseille, France
| | - Pauline Louche
- ImCheck Therapeutics, R&D Department, 13009 Marseille, France
| | - Laurent Gorvel
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, 13009 Marseille, France
| | - Marie-Sarah Rouvière
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, 13009 Marseille, France
| | - Nicolas Boucherit
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, 13009 Marseille, France
| | - Stéphane Audebert
- Aix Marseille Université, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille Protéomique, Marseille, France
| | - Elena Magrini
- IRCCS, Humanitas Research Hospital, 20089 Rozzano, Italy
| | | | - Aude de Gassart
- ImCheck Therapeutics, R&D Department, 13009 Marseille, France
| | | | - Alberto Mantovani
- IRCCS, Humanitas Research Hospital, 20089 Rozzano, Italy; Department of Biomedical Sciences, Humanitas University, 20090 Pieve Emanuele, Milan, Italy; William Harvey Research Institute, Queen Mary University, London EC1M 6BQ, UK
| | | | - Sophie Agaugué
- ImCheck Therapeutics, R&D Department, 13009 Marseille, France
| | - Carla E Cano
- ImCheck Therapeutics, R&D Department, 13009 Marseille, France.
| | - Daniel Olive
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, 13009 Marseille, France.
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3
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Du YT, Zhang HQ, Li Y, Li XP, Yuan ZZ, Li MF. Teleost-specific TLR23 in Takifugu rubripes recruits MyD88 to trigger ERK pathway and promotes antibacterial defense. FISH & SHELLFISH IMMUNOLOGY 2024; 151:109724. [PMID: 38942251 DOI: 10.1016/j.fsi.2024.109724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 06/13/2024] [Accepted: 06/23/2024] [Indexed: 06/30/2024]
Abstract
Takifugu rubripes is a highly valued cultured fish in Asia, while pathogen infections can result in severe diseases and lead to substantial economic losses. Toll-like receptors (TLRs), as pattern recognition receptors, play a crucial role on recognition pathogens and initiation innate immune response. However, the immunological properties of teleost-specific TLR23 remain largely unknown. In this study, we investigated the biological functions of TLR23 (TrTLR23) from T. rubripes, found that TrTLR23 existed in various organs. Following bacterial pathogen challenge, the expression levels of TrTLR23 were significantly increased in immune related organs. TrTLR23 located on the cellular membrane and specifically recognized pathogenic microorganism. Co-immunoprecipitation and antibody blocking analysis revealed that TrTLR23 recruited myeloid differentiation primary response protein (MyD88), thereby mediating the activation of the ERK signaling pathway. Furthermore, in vivo showed that, when TrTLR23 is overexpressed in T. rubripes, bacterial replication in fish tissues is significantly inhibited. Consistently, when TrTLR23 expression in T. rubripes is knocked down, bacterial replication is significantly enhanced. In conclusion, these findings suggested that TrTLR23 played a critical role on mediation TLR23-MyD88-ERK axis against bacterial infection. This study revealed that TLR23 involved in the innate immune mechanism, and provided the foundation for development disease control strategies in teleost.
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Affiliation(s)
- Yu-Ting Du
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 393 West Binshui Road, Xiqing District, Tianjin, 300387, China.
| | - Hong-Qiang Zhang
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 393 West Binshui Road, Xiqing District, Tianjin, 300387, China.
| | - Yan Li
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 393 West Binshui Road, Xiqing District, Tianjin, 300387, China.
| | - Xue-Peng Li
- School of Ocean, Yantai University, Yantai, China.
| | - Zeng-Zhi Yuan
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 393 West Binshui Road, Xiqing District, Tianjin, 300387, China.
| | - Mo-Fei Li
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 393 West Binshui Road, Xiqing District, Tianjin, 300387, China; Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Qingdao, 266237, China.
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4
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Chiu CY, Willis-Owen SAG, Wong KCC, Farrow SN, Cookson WOC, Moffatt MF, Zhang Y. MAP3K8 is a potential therapeutic target in airway epithelial inflammation. J Inflamm (Lond) 2024; 21:27. [PMID: 39030600 PMCID: PMC11264520 DOI: 10.1186/s12950-024-00400-2] [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: 12/18/2023] [Accepted: 07/10/2024] [Indexed: 07/21/2024] Open
Abstract
BACKGROUND We have previously discovered clusters of sequentially negative and positive modulators of acute inflammation during cytokine stimulation in epithelial cells and identified potential targets for therapy within these clusters. MAP3K8 is a druggable kinase that we found to be a hub of a principal interaction network. We describe here the results of MAP3K8 knockdown in the A549 lung cancer cell line, the BEAS-2B epithelial cell line and normal human bronchial epithelial (NHBE) cells following IL-1β stimulation. We analysed signalling transduction and global gene expression after IL-1β stimulation with and without MAP3K8 knockdown, quantifying levels of the inflammatory cytokines IL-6, IL-8 and RANTES levels by qPCRs and/or by ELISAs. We also examined potential small molecule inhibitors for MAP3K8 in the same models. RESULTS IL-1β significantly and consistently increased MAP3K8 expression after 2 h in A549, BEAS-2B and NHBE cells. Phosphorylation of MAP3K8 occurred at 20 min after IL-1β stimulation and MAP3K8 protein was degraded at 30 min. MAP3K8 knockdown significantly reduced IL-6, IL-8 levels after IL-1β stimulation and yielded a 10-fold enhancement of the anti-inflammatory effects of dexamethasone. Phosphorylation of ERK1/2 (P-ERK1/2) and phosphorylation of SAPK/JNK (P-SAPK/JNK) decreased at 30 min after IL-1β stimulation with MAP3K8 knockdown. The combination of dexamethasone and MAP3K8 knockdown resulted in greater inhibition of phosphorylated ERK1/2 and SAPK/JNK. Nineteen genes including MMP1, MMP3, MMP10, ITGB8, LAMC2 and PLAT (P corrected < 0.01 respectively) demonstrated a distinct altered temporal response to IL-1β following suppression of MAP3K8. However, putative MAP3K8 inhibitors including Tpl2-1, Tpl2-2 and GSK2222867A only showed inhibition of IL-6 and IL-8 production at a high dose. CONCLUSIONS These results confirm that MAP3K8 is a key mediator of the early inflammatory response and that it is a potential target in inflammatory diseases. However, current tool compounds do not effectively inhibit its effects.
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Affiliation(s)
- Chih-Yung Chiu
- National Heart and Lung Institute, Imperial College London, SW3 6LY, London, UK
- Division of Paediatric Pulmonology, Chang Gung Memorial Hospital Linkou, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | | | - Kenny C C Wong
- National Heart and Lung Institute, Imperial College London, SW3 6LY, London, UK
| | - Stuart N Farrow
- Cancer Research Horizons, Babraham campus, Cambridge, CB22 3AT, UK
| | - William O C Cookson
- National Heart and Lung Institute, Imperial College London, SW3 6LY, London, UK
| | - Miriam F Moffatt
- National Heart and Lung Institute, Imperial College London, SW3 6LY, London, UK
| | - Youming Zhang
- National Heart and Lung Institute, Imperial College London, SW3 6LY, London, UK.
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Yokosawa T, Miyagawa S, Suzuki W, Nada Y, Hirata Y, Noguchi T, Matsuzawa A. The E3 Ubiquitin Protein Ligase LINCR Amplifies the TLR-Mediated Signals through Direct Degradation of MKP1. Cells 2024; 13:687. [PMID: 38667302 PMCID: PMC11048823 DOI: 10.3390/cells13080687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 04/13/2024] [Accepted: 04/13/2024] [Indexed: 04/28/2024] Open
Abstract
Toll-like receptors (TLRs) induce innate immune responses through activation of intracellular signaling pathways, such as MAP kinase and NF-κB signaling pathways, and play an important role in host defense against bacterial or viral infections. Meanwhile, excessive activation of TLR signaling leads to a variety of inflammatory disorders, including autoimmune diseases. TLR signaling is therefore strictly controlled to balance optimal immune response and inflammation. However, its balancing mechanisms are not fully understood. In this study, we identified the E3 ubiquitin ligase LINCR/ NEURL3 as a critical regulator of TLR signaling. In LINCR-deficient cells, the sustained activation of JNK and p38 MAPKs induced by the agonists for TLR3, TLR4, and TLR5, was clearly attenuated. Consistent with these observations, TLR-induced production of a series of inflammatory cytokines was significantly attenuated, suggesting that LINCR positively regulates innate immune responses by promoting the activation of JNK and p38. Interestingly, our further mechanistic study identified MAPK phosphatase-1 (MKP1), a negative regulator of MAP kinases, as a ubiquitination target of LINCR. Thus, our results demonstrate that TLRs fine-tune the activation of MAP kinase pathways by balancing LINCR (the positive regulator) and MKP1 (the negative regulator), which may contribute to the induction of optimal immune responses.
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Affiliation(s)
| | | | | | | | | | - Takuya Noguchi
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Atsushi Matsuzawa
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan
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Jiao H, James SJ, Png CW, Cui C, Li H, Li L, Chia WN, Min N, Li W, Claser C, Rénia L, Wang H, Chen MIC, Chu JJH, Tan KSW, Deng Y, Zhang Y. DUSP4 modulates RIG-I- and STING-mediated IRF3-type I IFN response. Cell Death Differ 2024; 31:280-291. [PMID: 38383887 PMCID: PMC10923883 DOI: 10.1038/s41418-024-01269-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 02/05/2024] [Accepted: 02/07/2024] [Indexed: 02/23/2024] Open
Abstract
Detection of cytosolic nucleic acids by pattern recognition receptors, including STING and RIG-I, leads to the activation of multiple signalling pathways that culminate in the production of type I interferons (IFNs) which are vital for host survival during virus infection. In addition to protective immune modulatory functions, type I IFNs are also associated with autoimmune diseases. Hence, it is important to elucidate the mechanisms that govern their expression. In this study, we identified a critical regulatory function of the DUSP4 phosphatase in innate immune signalling. We found that DUSP4 regulates the activation of TBK1 and ERK1/2 in a signalling complex containing DUSP4, TBK1, ERK1/2 and IRF3 to regulate the production of type I IFNs. Mice deficient in DUSP4 were more resistant to infections by both RNA and DNA viruses but more susceptible to malaria parasites. Therefore, our study establishes DUSP4 as a regulator of nucleic acid sensor signalling and sheds light on an important facet of the type I IFN regulatory system.
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Affiliation(s)
- Huipeng Jiao
- Zhejiang Provincial Key Laboratory of Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, Zhejiang, 310058, China
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, 117597, Singapore
| | - Sharmy J James
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, 117597, Singapore
| | - Chin Wen Png
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, 117597, Singapore
| | - Chaoyu Cui
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, 518100, China
| | - Heng Li
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, 117597, Singapore
| | - Liang Li
- Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Wan Ni Chia
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Nyo Min
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Weiyun Li
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Innovation Center for Cell Signaling Network, Shanghai, 200031, China
| | - Carla Claser
- Singapore Immunology Network, Agency for Science, Technology and Research (A*STAR), Singapore, 138668, Singapore
| | - Laurent Rénia
- Singapore Immunology Network, Agency for Science, Technology and Research (A*STAR), Singapore, 138668, Singapore
| | - Hongyan Wang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Innovation Center for Cell Signaling Network, Shanghai, 200031, China
| | - Mark I-Cheng Chen
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, 117597, Singapore
| | - Justin Jang Hann Chu
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Kevin Shyong Wei Tan
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Yinyue Deng
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, 518100, China.
| | - Yongliang Zhang
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore.
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, 117597, Singapore.
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7
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Costantini E, Carrarini C, Calisi D, De Rosa M, Simone M, Di Crosta A, Palumbo R, Cipollone A, Aielli L, De Laurentis M, Colarusso L, Pilotto A, Padovani A, Konstantinidou F, Gatta V, Stuppia L, Cipollone F, Di Nicola M, Reale M, Bonanni L. Search in the Periphery for Potential Inflammatory Biomarkers of Dementia with Lewy Bodies and Alzheimer's Disease. J Alzheimers Dis 2024; 99:1147-1158. [PMID: 38759010 PMCID: PMC11191525 DOI: 10.3233/jad-231471] [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] [Accepted: 04/04/2024] [Indexed: 05/19/2024]
Abstract
Background Neuroinflammation, with altered peripheral proinflammatory cytokine production, plays a major role in the pathogenesis of neurodegenerative diseases, such as Alzheimer's disease (AD), while the role of inflammation in dementia with Lewy bodies (DLB) is less known and the results of different studies are often in disagreement. Objective The present study aimed to investigate the levels of TNFα and IL-6 in serum and supernatants, and the related DNA methylation in patients affected by DLB and AD compared to healthy controls (HCs), to clarify the role of epigenetic mechanisms of DNA promoter methylation on of pro-inflammatory cytokines overproduction. Methods Twenty-one patients with DLB and fourteen with AD were frequency-matched for age and sex with eleven HCs. Clinical evaluation, TNFα and IL-6 gene methylation status, cytokine gene expression levels and production in serum and peripheral blood mononuclear cell (PBMC) supernatants were performed. Results In AD and DLB patients, higher serum levels of IL-6 and TNFα were detected than in HCs. Differences in LPS-stimulated versus spontaneous PBMCs were observed between DLB, AD, and HC in the levels of TNFα (p = 0.027) and IL-6 (p < 0.001). Higher levels were also revealed for sIL-6R in DLB (p < 0.001) and AD (p < 0.001) in comparison with HC.DNA hypomethylation in IL-6 and TNFα CpG promoter sites was detected for DLB and AD patients compared to the corresponding site in HCs. Conclusions Our preliminary study documented increased levels of IL-6 and TNFα in DLB and AD patients to HCs. This overproduction can be due to epigenetic mechanisms regarding the hypomethylation of DNA promoters.
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Affiliation(s)
- Erica Costantini
- Department of Medicine and Aging Sciences, University “G. d’Annunzio”, Chieti, Italy
| | - Claudia Carrarini
- Department of Neuroscience, Catholic University of Sacred Heart, Rome, Italy
- IRCCS San Raffaele, Rome, Italy
| | - Dario Calisi
- Department of Neurosciences, Imaging and Clinical Sciences, University “G. d’Annunzio”, Chieti, Italy
| | - Matteo De Rosa
- Department of Neurosciences, Imaging and Clinical Sciences, University “G. d’Annunzio”, Chieti, Italy
| | - Marianna Simone
- Clinics of Neurology SS. Annunziata Hospital of Chieti, Chieti, Italy
| | - Adolfo Di Crosta
- Department of Psychological Health and Territorial Sciences, University “G. d’Annunzio”, Chieti, Italy
| | - Rocco Palumbo
- Department of Psychological Health and Territorial Sciences, University “G. d’Annunzio”, Chieti, Italy
| | - Alessia Cipollone
- Department of Medicine and Aging Sciences, University “G. d’Annunzio”, Chieti, Italy
| | - Lisa Aielli
- Department of Innovative Technologies in Medicine and Dentistry, University “G. d’Annunzio”, Chieti, Italy
| | | | | | - Andrea Pilotto
- Department of Clinical and Experimental Sciences, Neurology Unit, University of Brescia, Brescia, Italy
- Parkinson’s Disease Rehabilitation Centre, FERB ONLUS-S, Isidoro Hospital, Trescore Balneario, Italy
| | - Alessandro Padovani
- Department of Clinical and Experimental Sciences, Neurology Unit, University of Brescia, Brescia, Italy
| | - Fani Konstantinidou
- Department of Psychological Health and Territorial Sciences, University “G. d’Annunzio”, Chieti, Italy
| | - Valentina Gatta
- Department of Psychological Health and Territorial Sciences, University “G. d’Annunzio”, Chieti, Italy
| | - Liborio Stuppia
- Department of Psychological Health and Territorial Sciences, University “G. d’Annunzio”, Chieti, Italy
| | - Francesco Cipollone
- Department of Medicine and Aging Sciences, University “G. d’Annunzio”, Chieti, Italy
| | - Marta Di Nicola
- Department of Medical and Oral Sciences and Biotechnologies, University “G. d’Annunzio”, Chieti, Italy
| | - Marcella Reale
- Department of Innovative Technologies in Medicine and Dentistry, University “G. d’Annunzio”, Chieti, Italy
| | - Laura Bonanni
- Department of Medicine and Aging Sciences, University “G. d’Annunzio”, Chieti, Italy
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8
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Simón-Fuentes M, Ríos I, Herrero C, Lasala F, Labiod N, Luczkowiak J, Roy-Vallejo E, Fernández de Córdoba-Oñate S, Delgado-Wicke P, Bustos M, Fernández-Ruiz E, Colmenares M, Puig-Kröger A, Delgado R, Vega MA, Corbí ÁL, Domínguez-Soto Á. MAFB shapes human monocyte-derived macrophage response to SARS-CoV-2 and controls severe COVID-19 biomarker expression. JCI Insight 2023; 8:e172862. [PMID: 37917179 PMCID: PMC10807725 DOI: 10.1172/jci.insight.172862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 10/31/2023] [Indexed: 11/04/2023] Open
Abstract
Monocyte-derived macrophages, the major source of pathogenic macrophages in COVID-19, are oppositely instructed by macrophage CSF (M-CSF) or granulocyte macrophage CSF (GM-CSF), which promote the generation of antiinflammatory/immunosuppressive MAFB+ (M-MØ) or proinflammatory macrophages (GM-MØ), respectively. The transcriptional profile of prevailing macrophage subsets in severe COVID-19 led us to hypothesize that MAFB shapes the transcriptome of pulmonary macrophages driving severe COVID-19 pathogenesis. We have now assessed the role of MAFB in the response of monocyte-derived macrophages to SARS-CoV-2 through genetic and pharmacological approaches, and we demonstrate that MAFB regulated the expression of the genes that define pulmonary pathogenic macrophages in severe COVID-19. Indeed, SARS-CoV-2 potentiated the expression of MAFB and MAFB-regulated genes in M-MØ and GM-MØ, where MAFB upregulated the expression of profibrotic and neutrophil-attracting factors. Thus, MAFB determines the transcriptome and functions of the monocyte-derived macrophage subsets that underlie pulmonary pathogenesis in severe COVID-19 and controls the expression of potentially useful biomarkers for COVID-19 severity.
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Affiliation(s)
- Miriam Simón-Fuentes
- Myeloid Cell Laboratory, Centro de Investigaciones Biológicas, CSIC, Madrid, Spain
| | - Israel Ríos
- Immunometabolism and Inflammation Unit, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
| | - Cristina Herrero
- Myeloid Cell Laboratory, Centro de Investigaciones Biológicas, CSIC, Madrid, Spain
| | - Fátima Lasala
- Instituto de Investigación Hospital Universitario 12 de Octubre (imas12), Universidad Complutense School of Medicine, Madrid, Spain
| | - Nuria Labiod
- Instituto de Investigación Hospital Universitario 12 de Octubre (imas12), Universidad Complutense School of Medicine, Madrid, Spain
| | - Joanna Luczkowiak
- Instituto de Investigación Hospital Universitario 12 de Octubre (imas12), Universidad Complutense School of Medicine, Madrid, Spain
| | - Emilia Roy-Vallejo
- Rheumatology Department, University Hospital La Princesa and Research Institute, Madrid, Spain
| | | | - Pablo Delgado-Wicke
- Molecular Biology Unit, University Hospital La Princesa and Research Institute, Universidad Autónoma de Madrid, Madrid, Spain
| | - Matilde Bustos
- Institute of Biomedicine of Seville (IBiS), Spanish National Research Council (CSIC), University of Seville, Virgen del Rocio University Hospital (HUVR), Seville, Spain
| | - Elena Fernández-Ruiz
- Molecular Biology Unit, University Hospital La Princesa and Research Institute, Universidad Autónoma de Madrid, Madrid, Spain
| | - Maria Colmenares
- Myeloid Cell Laboratory, Centro de Investigaciones Biológicas, CSIC, Madrid, Spain
| | - Amaya Puig-Kröger
- Immunometabolism and Inflammation Unit, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
| | - Rafael Delgado
- Instituto de Investigación Hospital Universitario 12 de Octubre (imas12), Universidad Complutense School of Medicine, Madrid, Spain
| | - Miguel A. Vega
- Myeloid Cell Laboratory, Centro de Investigaciones Biológicas, CSIC, Madrid, Spain
| | - Ángel L. Corbí
- Myeloid Cell Laboratory, Centro de Investigaciones Biológicas, CSIC, Madrid, Spain
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9
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Liu H, Li L, Wang M, Liu D, Su Q, Zhang Q. Differentiated expressed miRNAs in splenic monocyte induced by burn injury in mice. Int Wound J 2023; 20:3999-4005. [PMID: 37386845 PMCID: PMC10681402 DOI: 10.1111/iwj.14288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/05/2023] [Accepted: 06/06/2023] [Indexed: 07/01/2023] Open
Abstract
To find potential biomarkers based on miRNA and their potential targets in splenic monocytes in burn-injured mice. Male Balb/c mice were subjected to sham or scalding injury of 15% total body surface area. Spenic CD11b+ monocytes were purified with magnetic beads. The monocytes were cultured in the presence of lipopolysaccharide. The proliferation of monocytes was detected by MTT assay, and the cytokines in the supernatant were examined by enzyme linked immunosorbent assay. The purified monocytes were also under total RNA extraction. The differential monocytic miRNAs expression between the sham and burn-injured mice was analysed by miRNA microarray. The activity of monocytes was comparable between the two groups (p > 0.05). However, monocytes from burn-injured mice secreted higher levels of tumour necrosis factor (TNF)-α and transforming growth factor-β, but lower level of monocyte chemoattratctant protein-1. A total of 54 miRNAs were differentially expressed in monocytes from burn relative to sham-injured mice (fold >3). Further quantitative reverse transcription polymerase chain reaction confirmed that the expression of miR-146a was significantly down-regulated, while miR-3091-6p was up-regulated after burn injury. Using the combination of Miranda and TargetScan softwares, we found that mir-146a may regulate 180 potential target genes including TNF receptor related factor 6 (TRAF6), interleukin-1 receptor related kinase 1 (IRAK1) and CD28. Mir-3091-6p may regulate 39 potential targets, including SOCS7 (cytokine signal transduction inhibitor 7) and ARRB2 (arrestin, β 2). The miRNAs expressed by monocytes after burn injury may be involved in the regulation of innate immune response in burn injury.
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Affiliation(s)
- Hong‐sheng Liu
- Department of EmergencyFourth Medical Center of Chinese PLA General HospitalBeijingPeople's Republic of China
| | - Lun‐chao Li
- Department of EmergencyFourth Medical Center of Chinese PLA General HospitalBeijingPeople's Republic of China
| | - Man Wang
- Department of EmergencyFourth Medical Center of Chinese PLA General HospitalBeijingPeople's Republic of China
| | - Dong‐sheng Liu
- Department of EmergencyFourth Medical Center of Chinese PLA General HospitalBeijingPeople's Republic of China
| | - Qin Su
- Department of EmergencyFourth Medical Center of Chinese PLA General HospitalBeijingPeople's Republic of China
| | - Qing‐Hong Zhang
- Trauma Repair and Tissue Regeneration Center, Department of Medical Innovation StudyChinese People's Liberation Army General HospitalBeijingPeople's Republic of China
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10
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Hashimoto R, Koide H, Katoh Y. MEK inhibitors increase the mortality rate in mice with LPS-induced inflammation through IL-12-NO signaling. Cell Death Discov 2023; 9:374. [PMID: 37833247 PMCID: PMC10575927 DOI: 10.1038/s41420-023-01674-w] [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: 06/04/2023] [Revised: 09/11/2023] [Accepted: 10/03/2023] [Indexed: 10/15/2023] Open
Abstract
Lipopolysaccharide (LPS) is an endotoxin that can cause an acute inflammatory response. Nitric oxide (NO) is one of the most important innate immune system components and is synthesized by inducible NOS (iNOS) in macrophages in response to stimulation with LPS. LPS activates the RAS-RAF-mitogen-activated protein kinase/ERK kinase (MEK)-extracellular-signal-regulated kinase (ERK) signaling cascade in macrophages. The purpose of this study was to examine how the combination of LPS and MEK inhibitors, which have been used as anticancer agents in recent years, affects inflammation. We showed that MEK inhibitors enhanced iNOS expression and NO production in LPS-stimulated mouse bone marrow-derived macrophages. A MEK inhibitor increased the mortality rate in mice with LPS-induced inflammation. The expression of the cytokine interleukin-12 (IL-12) in macrophages was enhanced by the MEK inhibitor, as shown by a cytokine array and ELISA. IL-12 enhanced iNOS expression and NO production in response to LPS. We also showed that tumor necrosis factor (TNF-α) was secreted by macrophage after stimulation with LPS and that TNF-α and IL-12 synergistically induced iNOS expression and NO production. An anti-IL-12 neutralizing antibody prevented NO production and mortality in an LPS-induced inflammation mouse model in the presence of a MEK inhibitor. These results suggest that the MEK inhibitor increases the mortality rate in mice with LPS-induced inflammation through IL-12-NO signaling.
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Affiliation(s)
- Ryota Hashimoto
- Laboratory of Cell Biology, Biomedical Research Core Facilities, Juntendo University Graduate School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8421, Japan.
- Department of Physiology, Juntendo University Faculty of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8421, Japan.
| | - Hiroshi Koide
- Laboratory of Molecular and Biochemical Research, Biomedical Research Core Facilities, Juntendo University Graduate School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Youichi Katoh
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8421, Japan.
- Juntendo University Faculty of International Liberal Arts, Hongo 2-1-1, Bunkyo-ku, Tokyo, 112-8421, Japan.
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11
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Curson JE, Liu L, Luo L, Muusse TW, Lucas RM, Gunther KS, Vajjhala PR, Abrol R, Jones A, Kapetanovic R, Stacey KJ, Stow JL, Sweet MJ. TLR4 phosphorylation at tyrosine 672 activates the ERK/c-FOS signaling module for LPS-induced cytokine responses in macrophages. Eur J Immunol 2023; 53:e2250056. [PMID: 37058370 PMCID: PMC10947571 DOI: 10.1002/eji.202250056] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 03/20/2023] [Accepted: 04/11/2023] [Indexed: 04/15/2023]
Abstract
TLRs engage numerous adaptor proteins and signaling molecules, enabling a complex series of post-translational modifications (PTMs) to mount inflammatory responses. TLRs themselves are post-translationally modified following ligand-induced activation, with this being required to relay the full spectrum of proinflammatory signaling responses. Here, we reveal indispensable roles for TLR4 Y672 and Y749 phosphorylation in mounting optimal LPS-inducible inflammatory responses in primary mouse macrophages. LPS promotes phosphorylation at both tyrosine residues, with Y749 phosphorylation being required for maintenance of total TLR4 protein levels and Y672 phosphorylation exerting its pro-inflammatory effects more selectively by initiating ERK1/2 and c-FOS phosphorylation. Our data also support a role for the TLR4-interacting membrane proteins SCIMP and the SYK kinase axis in mediating TLR4 Y672 phosphorylation to permit downstream inflammatory responses in murine macrophages. The corresponding residue in human TLR4 (Y674) is also required for optimal LPS signaling responses. Our study, thus, reveals how a single PTM on one of the most widely studied innate immune receptors orchestrates downstream inflammatory responses.
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Affiliation(s)
- James E.B. Curson
- Institute for Molecular Bioscience (IMB)IMB Centre for Inflammation and Disease Research and Australian Infectious Diseases Research CentreThe University of QueenslandBrisbaneQueenslandAustralia
| | - Liping Liu
- Institute for Molecular Bioscience (IMB)IMB Centre for Inflammation and Disease Research and Australian Infectious Diseases Research CentreThe University of QueenslandBrisbaneQueenslandAustralia
| | - Lin Luo
- Institute for Molecular Bioscience (IMB)IMB Centre for Inflammation and Disease Research and Australian Infectious Diseases Research CentreThe University of QueenslandBrisbaneQueenslandAustralia
| | - Timothy W. Muusse
- School of Chemistry and Molecular Biosciences (SCMB) and Australian Infectious Diseases Research CentreThe University of QueenslandBrisbaneQueenslandAustralia
| | - Richard M. Lucas
- Institute for Molecular Bioscience (IMB)IMB Centre for Inflammation and Disease Research and Australian Infectious Diseases Research CentreThe University of QueenslandBrisbaneQueenslandAustralia
| | - Kimberley S. Gunther
- Institute for Molecular Bioscience (IMB)IMB Centre for Inflammation and Disease Research and Australian Infectious Diseases Research CentreThe University of QueenslandBrisbaneQueenslandAustralia
| | - Parimala R. Vajjhala
- School of Chemistry and Molecular Biosciences (SCMB) and Australian Infectious Diseases Research CentreThe University of QueenslandBrisbaneQueenslandAustralia
| | - Rishika Abrol
- Institute for Molecular Bioscience (IMB)IMB Centre for Inflammation and Disease Research and Australian Infectious Diseases Research CentreThe University of QueenslandBrisbaneQueenslandAustralia
| | - Alun Jones
- Institute for Molecular Bioscience (IMB)IMB Centre for Inflammation and Disease Research and Australian Infectious Diseases Research CentreThe University of QueenslandBrisbaneQueenslandAustralia
| | - Ronan Kapetanovic
- Institute for Molecular Bioscience (IMB)IMB Centre for Inflammation and Disease Research and Australian Infectious Diseases Research CentreThe University of QueenslandBrisbaneQueenslandAustralia
- Friedrich Miescher Institute for Biomedical ResearchBaselSwitzerland
| | - Katryn J. Stacey
- School of Chemistry and Molecular Biosciences (SCMB) and Australian Infectious Diseases Research CentreThe University of QueenslandBrisbaneQueenslandAustralia
| | - Jennifer L. Stow
- Institute for Molecular Bioscience (IMB)IMB Centre for Inflammation and Disease Research and Australian Infectious Diseases Research CentreThe University of QueenslandBrisbaneQueenslandAustralia
| | - Matthew J. Sweet
- Institute for Molecular Bioscience (IMB)IMB Centre for Inflammation and Disease Research and Australian Infectious Diseases Research CentreThe University of QueenslandBrisbaneQueenslandAustralia
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12
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Larson-Casey JL, Liu S, Pyles JM, Lapi SE, Saleem K, Antony VB, Gonzalez ML, Crossman DK, Carter AB. Impaired PPARγ activation by cadmium exacerbates infection-induced lung injury. JCI Insight 2023; 8:e166608. [PMID: 36928191 PMCID: PMC10243824 DOI: 10.1172/jci.insight.166608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 03/15/2023] [Indexed: 03/18/2023] Open
Abstract
Emerging data indicate an association between environmental heavy metal exposure and lung disease, including lower respiratory tract infections (LRTIs). Here, we show by single-cell RNA sequencing an increase in Pparg gene expression in lung macrophages from mice exposed to cadmium and/or infected with Streptococcus pneumoniae. However, the heavy metal cadmium or infection mediated an inhibitory posttranslational modification of peroxisome proliferator-activated receptor γ (PPARγ) to exacerbate LRTIs. Cadmium and infection increased ERK activation to regulate PPARγ degradation in monocyte-derived macrophages. Mice harboring a conditional deletion of Pparg in monocyte-derived macrophages had more severe S. pneumoniae infection after cadmium exposure, showed greater lung injury, and had increased mortality. Inhibition of ERK activation with BVD-523 protected mice from lung injury after cadmium exposure or infection. Moreover, individuals residing in areas of high air cadmium levels had increased cadmium concentration in their bronchoalveolar lavage (BAL) fluid, increased barrier dysfunction, and showed PPARγ inhibition that was mediated, at least in part, by ERK activation in isolated BAL cells. These observations suggest that impaired activation of PPARγ in monocyte-derived macrophages exacerbates lung injury and the severity of LRTIs.
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Affiliation(s)
| | - Shanrun Liu
- Division of Clinical Immunology and Rheumatology, Department of Medicine
| | | | | | - Komal Saleem
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine
| | - Veena B. Antony
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine
| | | | - David K. Crossman
- Department of Genetics, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - A. Brent Carter
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine
- Birmingham Veterans Administration Medical Center, Birmingham, Alabama, USA
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13
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Gutierrez AH, Mazariegos MS, Alemany S, Nevzorova YA, Cubero FJ, Sanz-García C. Tumor progression locus 2 (TPL2): A Cot-plicated progression from inflammation to chronic liver disease. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166660. [PMID: 36764206 DOI: 10.1016/j.bbadis.2023.166660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 01/24/2023] [Accepted: 01/30/2023] [Indexed: 02/10/2023]
Abstract
The cytoplasmic protein tumor progression locus 2 (TPL2), also known as cancer Osaka thyroid (Cot), or MAP3K8, is thought to have a significant role in a variety of cancers and illnesses and it is a key component in the activation pathway for the expression of inflammatory mediators. Despite the tight connection between inflammation and TPL2, its function has not been extensively studied in chronic liver disease (CLD), a major cause of morbidity and mortality worldwide. Here, we analyze more in detail the significance of TPL2 in CLD to shed light on the pathological and molecular transduction pattern of TPL2 during the progression of CLD. This might result in important advancements and enable progress in the diagnosis and treatment of CLD.
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Affiliation(s)
- Alejandro H Gutierrez
- Department of Immunology, Ophthalmology and ENT, Complutense University School of Medicine, 28040 Madrid, Spain
| | - Marina S Mazariegos
- Department of Immunology, Ophthalmology and ENT, Complutense University School of Medicine, 28040 Madrid, Spain
| | - Susana Alemany
- Department of Metabolism and Cell Signaling, Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, 28049 Madrid, Spain; Biomedicine Unit (Unidad Asociada al CSIC), Universidad de Las Palmas de Gran Canaria, 35001 Las Palmas, Spain
| | - Yulia A Nevzorova
- Department of Immunology, Ophthalmology and ENT, Complutense University School of Medicine, 28040 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), 28029 Madrid, Spain; Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), 28007 Madrid, Spain
| | - Francisco Javier Cubero
- Department of Immunology, Ophthalmology and ENT, Complutense University School of Medicine, 28040 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), 28029 Madrid, Spain; Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), 28007 Madrid, Spain
| | - Carlos Sanz-García
- Department of Immunology, Ophthalmology and ENT, Complutense University School of Medicine, 28040 Madrid, Spain.
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14
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Xu Y, Wang Y, Ji X. Immune and inflammatory mechanism of remote ischemic conditioning: A narrative review. Brain Circ 2023; 9:77-87. [PMID: 37576576 PMCID: PMC10419737 DOI: 10.4103/bc.bc_57_22] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 02/06/2023] [Accepted: 02/17/2023] [Indexed: 08/15/2023] Open
Abstract
The benefits of remote ischemic conditioning (RIC) on multiple organs have been extensively investigated. According to existing research, suppressing the immune inflammatory response is an essential mechanism of RIC. Based on the extensive effects of RIC on cardiovascular and cerebrovascular diseases, this article reviews the immune and inflammatory mechanisms of RIC and summarizes the effects of RIC on immunity and inflammation from three perspectives: (1) the mechanisms of the impact of RIC on inflammation and immunity; (2) evidence of the effects of RIC on immune and inflammatory processes in ischaemic stroke; and (3) possible future applications of this effect, especially in systemic infectious diseases such as sepsis and sepsis-associated encephalopathy. This review explores the possibility of using RIC as a treatment in more inflammation-related diseases, which will provide new ideas for the treatment of this kind of disease.
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Affiliation(s)
- Yi Xu
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
- China-America Institute of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Yuan Wang
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Xunming Ji
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
- China-America Institute of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
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15
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Wang Z, Zhang X, Cheng X, Ren T, Xu W, Li J, Wang H, Zhang J. Inflammation produced by senescent osteocytes mediates age-related bone loss. Front Immunol 2023; 14:1114006. [PMID: 36814916 PMCID: PMC9940315 DOI: 10.3389/fimmu.2023.1114006] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 01/11/2023] [Indexed: 02/08/2023] Open
Abstract
Purpose The molecular mechanisms of age-related bone loss are unclear and without valid drugs yet. The aims of this study were to explore the molecular changes that occur in bone tissue during age-related bone loss, to further clarify the changes in function, and to predict potential therapeutic drugs. Methods We collected bone tissues from children, middle-aged individuals, and elderly people for protein sequencing and compared the three groups of proteins pairwise, and the differentially expressed proteins (DEPs) in each group were analyzed by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG). K-means cluster analysis was then used to screen out proteins that continuously increased/decreased with age. Canonical signaling pathways that were activated or inhibited in bone tissue along with increasing age were identified by Ingenuity Pathway Analysis (IPA). Prediction of potential drugs was performed using the Connectivity Map (CMap). Finally, DEPs from sequencing were verified by Western blot, and the drug treatment effect was verified by quantitative real-time PCR. Results The GO and KEGG analyses show that the DEPs were associated with inflammation and bone formation with aging, and the IPA analysis shows that pathways such as IL-8 signaling and acute-phase response signaling were activated, while glycolysis I and EIF2 signaling were inhibited. A total of nine potential drugs were predicted, with rapamycin ranking the highest. In cellular experiments, rapamycin reduced the senescence phenotype produced by the H2O2-stimulated osteocyte-like cell MLO-Y4. Conclusion With age, inflammatory pathways are activated in bone tissue, and signals that promote bone formation are inhibited. This study contributes to the understanding of the molecular changes that occur in bone tissue during age-related bone loss and provides evidence that rapamycin is a drug of potential clinical value for this disease. The therapeutic effects of the drug are to be further studied in animals.
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Affiliation(s)
- Zixuan Wang
- Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaofei Zhang
- Center for Translational Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xing Cheng
- Health Care Management Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tianxing Ren
- Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weihua Xu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jin Li
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hui Wang
- Department of Medical Genetics, Basic School of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China,*Correspondence: Jinxiang Zhang, ; Hui Wang,
| | - Jinxiang Zhang
- Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China,*Correspondence: Jinxiang Zhang, ; Hui Wang,
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16
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Latha K, Patel Y, Rao S, Watford WT. The Influenza-Induced Pulmonary Inflammatory Exudate in Susceptible Tpl2-Deficient Mice Is Dictated by Type I IFN Signaling. Inflammation 2023; 46:322-341. [PMID: 36227523 PMCID: PMC9558022 DOI: 10.1007/s10753-022-01736-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 08/09/2022] [Accepted: 08/30/2022] [Indexed: 11/28/2022]
Abstract
The most prominent host response to viral infection is the production of type 1 interferons (T1 IFNs). One host regulator of the T1 IFNs is the serine-threonine kinase, tumor progression locus 2 (TPL2). We have previously demonstrated that Tpl2-/- mice succumb to infection with a low-pathogenicity influenza A strain (x31), in association with with increased pulmonary levels of interferon-β (IFN-β), chemokine CCL2, and excessive monocyte and neutrophil pulmonary infiltration. TPL2-dependent overexpression of IFN-β has been implicated in enhanced susceptibility to Mycobacterium tuberculosis; therefore, we examined the role of T1 IFNs in susceptibility of Tpl2-/- mice to influenza. CCL2 overexpression and monocyte recruitment were normalized in Ifnar1-/-Tpl2-/- mice, confirming that TPL2 constrains inflammatory monocyte recruitment via inhibition of the T1 IFN/CCL2 axis. Unexpectedly, excessive neutrophil recruitment in Ifnar1-/- strains was further exacerbated by simultaneous TPL2 genetic ablation in Ifnar1-/-Tpl2-/- by 7 dpi, accompanied by overexpression of neutrophil-regulating cytokines, CXCL1 and IFN-λ. Collectively, our data suggest that TPL2 and T1 IFNs synergize to inhibit neutrophil recruitment. However, treatment with the neutrophil-depleting anti-Ly6G antibody showed only a modest improvement in disease. Analysis of sorted innate immune populations revealed redundant expression of inflammatory mediators among neutrophils, inflammatory monocytes and alveolar macrophages. These findings suggest that targeting a single cell type or mediator may be inadequate to control severe disease characterized by a mixed inflammatory exudate. Future studies will consider TPL2-regulated pathways as potential predictors of severe influenza progression as well as investigate novel methods to modulate TPL2 function during viral infection.
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Affiliation(s)
- Krishna Latha
- Department of Infectious Diseases, University of Georgia, Athens, GA USA
| | - Yesha Patel
- Department of Cell Biology, University of Georgia, Athens, GA USA
| | - Sanjana Rao
- Department of Genetics, University of Georgia, Athens, GA USA
| | - Wendy T. Watford
- Department of Infectious Diseases, University of Georgia, Athens, GA USA
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17
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Glutamine increases stability of TPH1 mRNA via p38 mitogen-activated kinase in mouse mastocytoma cells. Mol Biol Rep 2023; 50:267-277. [PMID: 36331742 PMCID: PMC9884262 DOI: 10.1007/s11033-022-07693-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 06/07/2022] [Accepted: 06/08/2022] [Indexed: 11/06/2022]
Abstract
Expression changes for tryptophan hydroxylase 1 (TPH1), the rate-limiting enzyme in serotonin synthesis, by environmental glutamine (GLN) were examined in mouse mastocytoma-derived P815-HTR cells. GLN-treated cells exhibited a robust increase in TPH1 mRNA after a 6 h exposure to GLN. 6-Diazo-5-oxo-L-norleucine (DON), a glutamine-utilizing glutaminase inhibitor, significantly inhibited the GLN-induction of TPH1 mRNA. Nuclear run-on assays and mRNA decay experiments demonstrated that the primary mechanism leading to increased TPH1 mRNA levels was not due to transcriptional changes, but rather due to increased TPH1 RNA stability induced by GLN. Treatment with GLN also led to activation of p38 MAP kinase, but not p42/44 MAPK. In addition, SB203580, a p38 MAP kinase specific inhibitor, completely abolished the GLN-mediated increase of TPH1 mRNA levels, suggesting the pathway stabilizing TPH1 mRNA might be mediated by the activated p38 MAP kinase pathway. Additionally, SB203580 significantly reduced the stability of TPH1 mRNA, and this reduction of the stability was not affected by GLN in the culture medium, implying a sequential signaling from GLN being mediated by p38 MAP kinase, resulting in alteration of TPH1 mRNA stability. TPH1 mRNA stability loss was also dependent on de novo protein synthesis as shown by treatment of cells with a transcriptional/translational blocker. We provide evidence that TPH1 mRNA levels are increased in response to increased exogenous GLN in mouse mastocytoma cells via a stabilization of TPH1 mRNA due to the activity of the p38 MAP kinase.
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Hou T, Guo S, Liu Z, Lin H, Song Y, Li Q, Mao X, Wang W, Cao Y, Liu G. Novel Pectic Polysaccharides Isolated from Immature Honey Pomelo Fruit with High Immunomodulatory Activity. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238573. [PMID: 36500662 PMCID: PMC9739730 DOI: 10.3390/molecules27238573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/23/2022] [Accepted: 11/23/2022] [Indexed: 12/12/2022]
Abstract
A novel pectic polysaccharide (HPP-1) with high immunomodulatory activity was extracted and isolated from the immature honey pomelo fruit (Citrus grandis). Characterization of its chemical structure indicated that HPP-1 had a molecular weight of 59,024 D. In addition, HPP-1 was primarily composed of rhamnose, arabinose, fucose, mannose, and galactose at a molar ratio of 1.00:11.12:2.26:0.56:6.40. Fourier-transform infrared spectroscopy, periodic acid oxidation, and Smith degradation results showed that HPP-1 had α- and β-glycosidic linkages and 1 → 2, 1 → 4, 1 → 6, and 1 → 3 glycosidic bonds. 13C NMR and 1H NMR analyses revealed that the main glycogroups included 1,4-D-GalA, 1,6-β-D-Gal, 1,6-β-D-Man, 1,3-α-L-Ara, and 1,2-α-L-Rha. Immunomodulatory bioactivity analysis using a macrophage RAW264.7 model in vitro revealed that NO, TNF-α, and IL-6 secretions were all considerably increased by HPP-1. Moreover, RT-PCR results showed that HPP-1-induced iNOS, TNF-α, and IL-6 expression was significantly increased in macrophages. HPP-1-mediated activation in macrophages was due to the stimulation of the NF-κB and MAPK signaling pathways based on western blot analyses. HPP-1 extracted from immature honey pomelo fruit has potential applications as an immunomodulatory supplement.
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Affiliation(s)
- Tao Hou
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Shenglan Guo
- Guangzhou Shuke Industrial Co., Ltd., Guangzhou 510642, China
| | - Zhuokun Liu
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Hongyu Lin
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Yu Song
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Qiqi Li
- Chongqing Sweet Pet Products Co., Ltd., Chongqing 402160, China
| | - Xin Mao
- Chongqing Sweet Pet Products Co., Ltd., Chongqing 402160, China
| | - Wencan Wang
- Chongqing Sweet Pet Products Co., Ltd., Chongqing 402160, China
| | - Yong Cao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Sciences, South China Agricultural University, Guangzhou 510642, China
- Correspondence: (Y.C.); (G.L.); Tel./Fax: +86-020-8586234 (Y.C. & G.L.)
| | - Guo Liu
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Sciences, South China Agricultural University, Guangzhou 510642, China
- Correspondence: (Y.C.); (G.L.); Tel./Fax: +86-020-8586234 (Y.C. & G.L.)
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Van Eyndhoven LC, Tel J. Revising immune cell coordination: Origins and importance of single-cell variation. Eur J Immunol 2022; 52:1889-1897. [PMID: 36250412 PMCID: PMC10092580 DOI: 10.1002/eji.202250073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/15/2022] [Accepted: 10/11/2022] [Indexed: 12/13/2022]
Abstract
Moving from the optimalization of single-cell technologies to the interpretation of the multi-complex single-cell data, the field of immunoengineering is granted with numerous important insights into the coordination of immune cell activation and how to modulate it for therapeutic purposes. However, insights come with additional follow-up questions that challenge our perception on how immune responses are generated and fine-tuned to fight a wide array of pathogens in ever-changing and often unpredictable microenvironments. Are immune responses really either being tightly regulated by molecular determinants, or highly flexible attributed to stochasticity? What exactly makes up the basic rules by which single cells cooperate to establish tissue-level immunity? Taking the type I IFN system and its newest insights as a main example throughout this review, we revise the basic concepts of (single) immune cell coordination, redefine the concepts of noise, stochasticity and determinism, and highlight the importance of single-cell variation in immunology and beyond.
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Affiliation(s)
- Laura C Van Eyndhoven
- Laboratory of Immunoengineering, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.,Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Jurjen Tel
- Laboratory of Immunoengineering, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.,Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, The Netherlands
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20
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Peterson AF, Ingram K, Huang EJ, Parksong J, McKenney C, Bever GS, Regot S. Systematic analysis of the MAPK signaling network reveals MAP3K-driven control of cell fate. Cell Syst 2022; 13:885-894.e4. [PMID: 36356576 PMCID: PMC9923805 DOI: 10.1016/j.cels.2022.10.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 08/15/2022] [Accepted: 10/17/2022] [Indexed: 11/10/2022]
Abstract
The classic network of mitogen-activated protein kinases (MAPKs) is highly interconnected and controls a diverse array of biological processes. In multicellular eukaryotes, the MAPKs ERK, JNK, and p38 control opposing cell behaviors but are often activated simultaneously, raising questions about how input-output specificity is achieved. Here, we use multiplexed MAPK activity biosensors to investigate how cell fate control emerges from the connectivity and dynamics of the MAPK network. Through chemical and genetic perturbation, we systematically explore the outputs and functions of all the MAP3 kinases encoded in the human genome and show that MAP3Ks control cell fate by triggering unique combinations of MAPK activity. We show that these MAPK activity combinations explain the paradoxical dual role of JNK signaling as pro-apoptotic or pro-proliferative kinase. Overall, our integrative analysis indicates that the MAPK network operates as a unit to control cell fate and shifts the focus from MAPKs to MAP3Ks to better understand signaling-mediated control of cell fate.
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Affiliation(s)
- Amy F Peterson
- Department of Molecular Biology and Genetics, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; The Biochemistry, Cellular, and Molecular Biology Graduate Program, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Kayla Ingram
- Department of Molecular Biology and Genetics, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; The Biochemistry, Cellular, and Molecular Biology Graduate Program, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - E J Huang
- Center for Functional Anatomy & Evolution, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jeeun Parksong
- Department of Molecular Biology and Genetics, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; The Biochemistry, Cellular, and Molecular Biology Graduate Program, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Connor McKenney
- Department of Molecular Biology and Genetics, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; The Biochemistry, Cellular, and Molecular Biology Graduate Program, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Gabriel S Bever
- Center for Functional Anatomy & Evolution, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Medicine, Division of Cardiology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Sergi Regot
- Department of Molecular Biology and Genetics, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; The Biochemistry, Cellular, and Molecular Biology Graduate Program, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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21
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Zhao C, Pu W, Wazir J, Jin X, Wei L, Song S, Su Z, Li J, Deng Y, Wang H. Long-term exposure to PM2.5 aggravates pulmonary fibrosis and acute lung injury by disrupting Nrf2-mediated antioxidant function. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 313:120017. [PMID: 36007796 DOI: 10.1016/j.envpol.2022.120017] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 08/16/2022] [Accepted: 08/17/2022] [Indexed: 06/15/2023]
Abstract
Epidemiological studies have indicated that exposure to ambient air-borne fine particulate matter (PM2.5) is associated with many cardiopulmonary diseases; however, the underlying pathological mechanisms of PM2.5-induced lung injury remain unknown. In this study, we aimed to assess the impact of acute or prolonged exposure to water-insoluble fractions of PM2.5 (PM2.5 particulate) on lung injury and its molecular mechanisms. Balb/c mice were randomly exposed to PM2.5 once (acute exposure) or once every three days for a total of 6 times (prolonged exposure). Lung, BALF and blood samples were collected, and pulmonary pathophysiological alterations were analyzed. Nrf2 knockout mice were adapted to assess the involvement of Nrf2 in lung injury, and transcriptomic analysis was performed to delineate the mechanisms. Through transcriptomic analysis and validation of Nrf2 knockout mice, we found that acute exposure to PM2.5 insoluble particulates induced neutrophil infiltration-mediated airway inflammation, whereas prolonged exposure to PM2.5 insoluble particulate triggered lung fibrosis by decreasing the transcriptional activity of Nrf2, which resulted in the downregulated expression of antioxidant-related genes. In response to secondary LPS exposure, prolonged PM2.5 exposure induced more severe lung injury, indicating that prolonged PM2.5 exposure induced Nrf2 inhibition weakened its antioxidative defense capacity against oxidative stress injury, leading to the formation of pulmonary fibrosis and increasing its susceptibility to secondary bacterial infection.
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Affiliation(s)
- Chen Zhao
- State Key Laboratory of Analytical Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China
| | - Wenyuan Pu
- State Key Laboratory of Analytical Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China
| | - Junaid Wazir
- State Key Laboratory of Analytical Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China
| | - Xiaolu Jin
- The First People's Hospital of Yancheng, The Affiliated Hospital of Nanjing University Medical School, Yancheng, 224006, China
| | - Lulu Wei
- State Key Laboratory of Analytical Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China
| | - Shiyu Song
- State Key Laboratory of Analytical Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China
| | - Zhonglan Su
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Jiabin Li
- The First People's Hospital of Yancheng, The Affiliated Hospital of Nanjing University Medical School, Yancheng, 224006, China
| | - Yijun Deng
- The First People's Hospital of Yancheng, The Affiliated Hospital of Nanjing University Medical School, Yancheng, 224006, China
| | - Hongwei Wang
- State Key Laboratory of Analytical Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China.
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22
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LncRNA HOXA11-AS promotes glioma malignant phenotypes and reduces its sensitivity to ROS via Tpl2-MEK1/2-ERK1/2 pathway. Cell Death Dis 2022; 13:942. [PMID: 36351895 PMCID: PMC9646708 DOI: 10.1038/s41419-022-05393-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 10/28/2022] [Accepted: 10/31/2022] [Indexed: 11/11/2022]
Abstract
Our previous studies showed that dysregulation of the long noncoding RNA (lncRNA) HOXA11-AS plays an important role in the development of glioma. However, the molecular mechanism of HOXA11-AS in glioma remains largely unknown. In this study, we explore the molecular mechanisms underlying abnormal expression and biological function of HOXA11-AS for identifying novel therapeutic targets in glioma. The expression of HOXA11-AS, and the relationship between HOXA11-AS and the prognosis of glioma patients were analyzed using databases and glioma samples. Transcriptomics, proteomics, RIP, ChIRP, luciferase, and ChIP assays were used to explore its upstream and downstream targets in glioma. The role of HOXA11-AS in regulating the sensitivity of glioma cells to reactive oxygen species (ROS) was also investigated in vitro and in vivo. We found that HOXA11-AS was significantly upregulated in glioma, and was correlated with the poor prognosis of glioma patients. Ectopic expression of HOXA11-AS promoted the proliferation, migration, and invasion of glioma cells in vitro and in vivo. Mechanistically, HOXA11-AS acted as a molecular sponge for let-7b-5p in the cytoplasm, antagonizing its ability to repress the expression of CTHRC1, which activates the β-catenin/c-Myc pathway. In addition, c-Myc was involved in HOXA11-AS dysregulation via binding to its promoter region to form a self-activating loop. HOXA11-AS, functioned as a scaffold in the nucleus, also recruited transcription factor c-Jun to the Tpl2 promoter, which activates the Tpl2-MEK1/2-ERK1/2 pathway to promote ROS resistance in glioma. Importantly, HOXA11-AS knockdown could sensitize glioma cells to ROS. Above, oncogenic HOXA11-AS upregulates CTHRC1 expression as a ceRNA by adsorbing let-7b-5p, which activates c-Myc to regulate itself transcription. HOXA11-AS knockdown promotes ROS sensitivity in glioma cells by regulating the Tpl2-MEK1/2-ERK1/2 axis, demonstrating that HOXA11-AS may be translated to increase ROS sensitivity therapeutically.
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23
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Cheng Y, Wang C, Wang H, Zhang Z, Yang X, Dong Y, Ma L, Luo J. Combination of an autophagy inhibitor with immunoadjuvants and an anti-PD-L1 antibody in multifunctional nanoparticles for enhanced breast cancer immunotherapy. BMC Med 2022; 20:411. [PMID: 36303207 PMCID: PMC9615197 DOI: 10.1186/s12916-022-02614-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 10/17/2022] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND The application of combination therapy for cancer treatment is limited due to poor tumor-specific drug delivery and the abscopal effect. METHODS Here, PD-L1- and CD44-responsive multifunctional nanoparticles were developed using a polymer complex of polyethyleneimine and oleic acid (PEI-OA) and loaded with two chemotherapeutic drugs (paclitaxel and chloroquine), an antigen (ovalbumin), an immunopotentiator (CpG), and an immune checkpoint inhibitor (anti-PD-L1 antibody). RESULTS PEI-OA greatly improved the drug loading capacity and encapsulation efficiency of the nanoplatform, while the anti-PD-L1 antibody significantly increased its cellular uptake compared to other treatment formulations. Pharmacodynamic experiments confirmed that the anti-PD-L1 antibody can strongly inhibit primary breast cancer and increase levels of CD4+ and CD8+ T cell at the tumor site. In addition, chloroquine reversed the "immune-cold" environment and improved the anti-tumor effect of both chemotherapeutics and immune checkpoint inhibitors, while it induced strong immune memory and prevented lung metastasis. CONCLUSIONS Our strategy serves as a promising approach to the rational design of nanodelivery systems for simultaneous active targeting, autophagy inhibition, and chemotherapy that can be combined with immune-checkpoint inhibitors for enhanced breast cancer treatment.
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Affiliation(s)
- Yibin Cheng
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Key Laboratory of Industrial Biotechnology, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, School of Life Sciences, Hubei University, Wuhan, 430062, P. R. China
| | - Caixia Wang
- Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Huihui Wang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Key Laboratory of Industrial Biotechnology, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, School of Life Sciences, Hubei University, Wuhan, 430062, P. R. China
| | - Zhiwei Zhang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Key Laboratory of Industrial Biotechnology, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, School of Life Sciences, Hubei University, Wuhan, 430062, P. R. China
| | - Xiaopeng Yang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Key Laboratory of Industrial Biotechnology, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, School of Life Sciences, Hubei University, Wuhan, 430062, P. R. China
| | - Yanming Dong
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Key Laboratory of Industrial Biotechnology, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, School of Life Sciences, Hubei University, Wuhan, 430062, P. R. China
| | - Lixin Ma
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Key Laboratory of Industrial Biotechnology, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, School of Life Sciences, Hubei University, Wuhan, 430062, P. R. China.
| | - Jingwen Luo
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Key Laboratory of Industrial Biotechnology, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, School of Life Sciences, Hubei University, Wuhan, 430062, P. R. China.
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Latha K, Rao S, Sakamoto K, Watford WT. Tumor Progression Locus 2 Protects against Acute Respiratory Distress Syndrome in Influenza A Virus-Infected Mice. Microbiol Spectr 2022; 10:e0113622. [PMID: 35980186 PMCID: PMC9604045 DOI: 10.1128/spectrum.01136-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/16/2022] [Indexed: 12/30/2022] Open
Abstract
Excessive inflammation in patients with severe influenza disease may lead to acute lung injury that results in acute respiratory distress syndrome (ARDS). ARDS is associated with alveolar damage and pulmonary edema that severely impair gas exchange, leading to hypoxia. With no existing FDA-approved treatment for ARDS, it is important to understand the factors that lead to virus-induced ARDS development to improve prevention, diagnosis, and treatment. We have previously shown that mice deficient in the serine-threonine mitogen-activated protein kinase, Tpl2 (MAP3K8 or COT), succumb to infection with a typically low-pathogenicity strain of influenza A virus (IAV; HKX31, H3N2 [x31]). The goal of the current study was to evaluate influenza A virus-infected Tpl2-/- mice clinically and histopathologically to gain insight into the disease mechanism. We hypothesized that Tpl2-/- mice succumb to IAV infection due to development of ARDS-like disease and pulmonary dysfunction. We observed prominent signs of alveolar septal necrosis, hyaline membranes, pleuritis, edema, and higher lactate dehydrogenase (LDH) levels in the lungs of IAV-infected Tpl2-/- mice compared to wild-type (WT) mice from 7 to 9 days postinfection (dpi). Notably, WT mice showed signs of regenerating epithelium, indicative of repair and recovery, that were reduced in Tpl2-/- mice. Furthermore, biomarkers associated with human ARDS cases were upregulated in Tpl2-/- mice at 7 dpi, demonstrating an ARDS-like phenotype in Tpl2-/- mice in response to IAV infection. IMPORTANCE This study demonstrates the protective role of the serine-threonine mitogen-activated protein kinase, Tpl2, in influenza virus pathogenesis and reveals that host Tpl2 deficiency is sufficient to convert a low-pathogenicity influenza A virus infection into severe influenza disease that resembles ARDS, both histopathologically and transcriptionally. The IAV-infected Tpl2-/- mouse thereby represents a novel murine model for studying ARDS-like disease that could improve our understanding of this aggressive disease and assist in the design of better diagnostics and treatments.
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Affiliation(s)
- Krishna Latha
- Department of Infectious Diseases, University of Georgia, Athens, Georgia, USA
| | - Sanjana Rao
- Department of Genetics, University of Georgia, Athens, Georgia, USA
| | - Kaori Sakamoto
- Department of Pathology, University of Georgia, Athens, Georgia, USA
| | - Wendy T. Watford
- Department of Infectious Diseases, University of Georgia, Athens, Georgia, USA
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The Relationship between the M1/M2 Macrophage Polarization and the Degree of Ossicular Erosion in Human Acquired Cholesteatoma: An Immunohistochemical Study. J Clin Med 2022; 11:jcm11164826. [PMID: 36013064 PMCID: PMC9410162 DOI: 10.3390/jcm11164826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 08/12/2022] [Accepted: 08/16/2022] [Indexed: 11/16/2022] Open
Abstract
The differential involvement of the macrophage activation phenotypes (M1 vs. M2) has been linked to disease severity in various chronic inflammatory disorders. Pharmacologic manipulation of the M1/M2 macrophage polarization has shown therapeutic potential. Cholesteatoma is a destructive chronic middle ear disease with potentially life-threatening complications. The distribution of macrophage polarization phenotypes in middle ear cholesteatoma has not been described. In the present study, human cholesteatoma specimens acquired during tympanomastoidectomy were retrospectively retrieved and immunohistochemically characterized using a combination of antibodies labeling M1 macrophages (CD80), M2 macrophages (CD163), and total macrophages (CD68). The correlations between the immunohistochemical findings and clinical presentation were assessed. The findings revealed that cholesteatomas with more extensive ossicular erosion demonstrated a significantly higher number of M1 (CD80+) cells and a higher M1/M2 ratio than less invasive cholesteatomas (Wilcoxon test, p < 0.05). The extent of ossicular erosion correlated significantly with the M1/M2 ratio (Spearman correlation coefficient ρ = 0.4, p < 0.05). Thus, the degree of ossicular erosion in human acquired cholesteatoma appears to be related to the M1/M2 macrophage polarization. The investigation of macrophage polarization and functions in various clinical presentations of middle ear cholesteatoma is of great interest since it may contribute to the development of pharmaceutical treatment approaches.
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Wang S, Qi X. The Putative Role of Astaxanthin in Neuroinflammation Modulation: Mechanisms and Therapeutic Potential. Front Pharmacol 2022; 13:916653. [PMID: 35814201 PMCID: PMC9263351 DOI: 10.3389/fphar.2022.916653] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 06/07/2022] [Indexed: 12/03/2022] Open
Abstract
Neuroinflammation is a protective mechanism against insults from exogenous pathogens and endogenous cellular debris and is essential for reestablishing homeostasis in the brain. However, excessive prolonged neuroinflammation inevitably leads to lesions and disease. The use of natural compounds targeting pathways involved in neuroinflammation remains a promising strategy for treating different neurological and neurodegenerative diseases. Astaxanthin, a natural xanthophyll carotenoid, is a well known antioxidant. Mounting evidence has revealed that astaxanthin is neuroprotective and has therapeutic potential by inhibiting neuroinflammation, however, its functional roles and underlying mechanisms in modulating neuroinflammation have not been systematically summarized. Hence, this review summarizes recent progress in this field and provides an update on the medical value of astaxanthin. Astaxanthin modulates neuroinflammation by alleviating oxidative stress, reducing the production of neuroinflammatory factors, inhibiting peripheral inflammation and maintaining the integrity of the blood-brain barrier. Mechanistically, astaxanthin scavenges radicals, triggers the Nrf2-induced activation of the antioxidant system, and suppresses the activation of the NF-κB and mitogen-activated protein kinase pathways. With its good biosafety and high bioavailability, astaxanthin has strong potential for modulating neuroinflammation, although some outstanding issues still require further investigation.
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27
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Zhou Y, Takano T, Li X, Wang Y, Wang R, Zhu Z, Tanokura M, Miyakawa T, Hachimura S. β-elemene regulates M1-M2 macrophage balance through the ERK/JNK/P38 MAPK signaling pathway. Commun Biol 2022; 5:519. [PMID: 35641589 PMCID: PMC9156783 DOI: 10.1038/s42003-022-03369-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 04/14/2022] [Indexed: 02/06/2023] Open
Abstract
Macrophages are classified into classically activated M1 macrophages and alternatively activated M2 macrophages, and the two phenotypes of macrophages are present during the development of various chronic diseases, including obesity-induced inflammation. In the present study, β-elemene, which is contained in various plant substances, is predicted to treat high-fat diet (HFD)-induced macrophage dysfunction based on the Gene Expression Omnibus (GEO) database and experimental validation. β-elemene impacts the imbalance of M1-M2 macrophages by regulating pro-inflammatory cytokines in mouse white adipose tissue both in vitro and in vivo. In addition, the RAW 264 cell line, which are macrophages from mouse ascites, is used to identify the effects of β-elemene on inhibiting bacterial endotoxin lipopolysaccharide (LPS)-induced phosphorylation of mitogen-activated protein kinase (MAPK) pathways. These pathways both induce and are activated by pro-inflammatory cytokines, and they also participate in the process of obesity-induced inflammation. The results highlight that β-elemene may represent a possible macrophage-mediated therapeutic medicine.
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Affiliation(s)
- Yingyu Zhou
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Tomohiro Takano
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Xuyang Li
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Yimei Wang
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Rong Wang
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Zhangliang Zhu
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, P. R. China
| | - Masaru Tanokura
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan.
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan.
| | - Takuya Miyakawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan.
| | - Satoshi Hachimura
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan.
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan.
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Hou L, Tian HY, Wang L, Ferris ZE, Wang J, Cai M, Older EA, Raja MRK, Xue D, Sun W, Nagarkatti P, Nagarkatti M, Chen H, Fan D, Tang X, Li J. Identification and Biosynthesis of Pro-Inflammatory Sulfonolipids from an Opportunistic Pathogen Chryseobacterium gleum. ACS Chem Biol 2022; 17:1197-1206. [PMID: 35476918 DOI: 10.1021/acschembio.2c00141] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Sulfonolipids (SoLs) are a unique class of sphingolipids featuring a sulfonate group compared to other sphingolipids. However, the biological functions and biosynthesis of SoLs in human microbiota have been poorly understood. Here, we report the discovery and isolation of SoLs from a human opportunistic pathogen Chryseobacterium gleum DSM16776. We show for the first time the pro-inflammatory activity of SoLs with mice primary macrophages. Furthermore, we used both in vivo heterologous expression and in vitro biochemical reconstitution to characterize two enzymes, cysteate synthase and cysteate fatty acyltransferase, that are specifically involved in the biosynthesis of SoLs rather than other sphingolipids. Based on these two SoL-specific enzymes, our bioinformatics analysis showed a wider distribution of SoL biosynthetic genes in microbes that had not been reported as SoL producers. We selected four of these strains and verified their cysteate synthase and cysteate fatty acyltransferase activities in SoL biosynthesis. Considering this wider distribution of SoL-specific biosynthetic enzymes in the context of SoLs' activity in mediating inflammation, a common and fundamental biological process, it may suggest a more comprehensive function of SoLs at play.
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Affiliation(s)
- Lukuan Hou
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
- Institute of Chemical Biology, Shenzhen Bay Laboratory, Shenzhen 518132, China
| | - Hai-Yan Tian
- College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Li Wang
- College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Zachary E Ferris
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Junfeng Wang
- Department of Cell Biology and Anatomy, School of Medicine, University of South Carolina, Columbia, South Carolina 29209, United States
| | - Mingwei Cai
- Institute of Chemical Biology, Shenzhen Bay Laboratory, Shenzhen 518132, China
| | - Ethan A. Older
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Manikanda Raja Keerthi Raja
- Department of Biological Sciences, University of South Carolina, Columbia, South Carolina 29209, United States
| | - Dan Xue
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Wanyang Sun
- College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Prakash Nagarkatti
- Department of Pathology, Microbiology and Immunology, School of Medicine, University of South Carolina, Columbia, South Carolina 29209, United States
| | - Mitzi Nagarkatti
- Department of Pathology, Microbiology and Immunology, School of Medicine, University of South Carolina, Columbia, South Carolina 29209, United States
| | - Hexin Chen
- Department of Biological Sciences, University of South Carolina, Columbia, South Carolina 29209, United States
| | - Daping Fan
- Department of Cell Biology and Anatomy, School of Medicine, University of South Carolina, Columbia, South Carolina 29209, United States
| | - Xiaoyu Tang
- Institute of Chemical Biology, Shenzhen Bay Laboratory, Shenzhen 518132, China
| | - Jie Li
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
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29
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Inui T, Kawamura N, Nakama R, Inui A, Katsuura G. Degalactosylated Whey Protein Suppresses Inflammatory Responses Induced by Lipopolysaccharide in Mice. Front Nutr 2022; 9:852355. [PMID: 35571950 PMCID: PMC9101058 DOI: 10.3389/fnut.2022.852355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 04/11/2022] [Indexed: 11/13/2022] Open
Abstract
The effects of degalactosylated whey protein on lipopolysaccharide (LPS)-induced inflammatory responses in mice were observed in comparison with intact whey protein. Intraperitoneal administration of both intact and degalactosylated whey proteins for 5 days did not affect body weight and food intake in mice. On day 6, intraperitoneal administration of LPS induced a marked decrease in body weight 4 h later. The LPS-induced decrease in body weight was significantly suppressed by the administration of degalactosylated whey protein, but not intact whey protein. Administration of LPS also significantly increase plasma tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) levels, which were significantly suppressed by the administration of degalactosylated whey protein, but not intact whey protein. Moreover, the application of degalactosylated whey protein to RAW264.7 cells significantly reduced mRNA expression of toll-like receptor 4 (TLR4) and significantly increased mRNA expression of mitogen-activated protein kinase phosphatase-1 (MKP-1). The marked increased expression of TNF-α and IL-1β in response to LPS in RAW264.7 cells was significantly suppressed by the application of degalactosylated whey protein. These results suggest that degalactosylated whey protein suppresses the effects of LPS in part by decreasing in TLR4 and increasing in MKP-1.
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Affiliation(s)
- Toshio Inui
- Saisei Mirai Cell Processing Center, Osaka, Japan
- Kobe Saisei Mirai Clinic, Kobe, Japan
- Inui Immunotherapy Clinic, Osaka, Japan
- *Correspondence: Toshio Inui,
| | - Namiko Kawamura
- Drug Discovery of Next-Generation GcMAF, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Riho Nakama
- Drug Discovery of Next-Generation GcMAF, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Akio Inui
- Pharmacological Department of Herbal Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Goro Katsuura
- Drug Discovery of Next-Generation GcMAF, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
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30
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Rumienczyk I, Kulecka M, Statkiewicz M, Ostrowski J, Mikula M. Oncology Drug Repurposing for Sepsis Treatment. Biomedicines 2022; 10:biomedicines10040921. [PMID: 35453671 PMCID: PMC9030585 DOI: 10.3390/biomedicines10040921] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/08/2022] [Accepted: 04/15/2022] [Indexed: 11/16/2022] Open
Abstract
Sepsis involves life-threatening organ dysfunction caused by a dysregulated host response to infection. Despite three decades of efforts and multiple clinical trials, no treatment, except antibiotics and supportive care, has been approved for this devastating syndrome. Simultaneously, numerous preclinical studies have shown the effectiveness of oncology-indicated drugs in ameliorating sepsis. Here we focus on cataloging these efforts with both oncology-approved and under-development drugs that have been repositioned to treat bacterial-induced sepsis models. In this context, we also envision the exciting prospect for further standard and oncology drug combination testing that could ultimately improve clinical outcomes in sepsis.
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Affiliation(s)
- Izabela Rumienczyk
- Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland; (I.R.); (M.K.); (M.S.); (J.O.)
| | - Maria Kulecka
- Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland; (I.R.); (M.K.); (M.S.); (J.O.)
- Department of Gastroenterology, Hepatology and Clinical Oncology, Centre for Postgraduate Medical Education, 01-813 Warsaw, Poland
| | - Małgorzata Statkiewicz
- Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland; (I.R.); (M.K.); (M.S.); (J.O.)
| | - Jerzy Ostrowski
- Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland; (I.R.); (M.K.); (M.S.); (J.O.)
- Department of Gastroenterology, Hepatology and Clinical Oncology, Centre for Postgraduate Medical Education, 01-813 Warsaw, Poland
| | - Michal Mikula
- Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland; (I.R.); (M.K.); (M.S.); (J.O.)
- Correspondence: ; Tel.: +48-22-546-26-55
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31
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Tian H, Ding M, Guo Y, Zhu Z, Yu Y, Tian Y, Li K, Sun G, Jiang R, Han R, Yan F, Kang X. WITHDRAWN: Effect of HSPA8 on the proliferation, apoptosis and immune function of chicken macrophages. Int J Biochem Cell Biol 2022:106186. [PMID: 35217190 DOI: 10.1016/j.biocel.2022.106186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 02/21/2022] [Indexed: 11/19/2022]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal
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Affiliation(s)
- Huihui Tian
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Mengxia Ding
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Yujie Guo
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Zhaoyan Zhu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Yange Yu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Yadong Tian
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Kui Li
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Guirong Sun
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Ruirui Jiang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Ruili Han
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Fengbin Yan
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China.
| | - Xiangtao Kang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China.
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32
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Wyatt KD, Sarr D, Sakamoto K, Watford WT. Influenza-induced Tpl2 expression within alveolar epithelial cells is dispensable for host viral control and anti-viral immunity. PLoS One 2022; 17:e0262832. [PMID: 35051238 PMCID: PMC8775564 DOI: 10.1371/journal.pone.0262832] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 01/05/2022] [Indexed: 01/22/2023] Open
Abstract
Tumor progression locus 2 (Tpl2) is a serine/threonine kinase that regulates the expression of inflammatory mediators in response to Toll-like receptors (TLR) and cytokine receptors. Global ablation of Tpl2 leads to severe disease in response to influenza A virus (IAV) infection, characterized by respiratory distress, and studies in bone marrow chimeric mice implicated Tpl2 in non-hematopoietic cells. Lung epithelial cells are primary targets and replicative niches of influenza viruses; however, the specific regulation of antiviral responses by Tpl2 within lung epithelial cells has not been investigated. Herein, we show that Tpl2 is basally expressed in primary airway epithelial cells and that its expression increases in both type I and type II airway epithelial cells (AECI and AECII) in response to influenza infection. We used Nkx2.1-cre to drive Tpl2 deletion within pulmonary epithelial cells to delineate epithelial cell-specific functions of Tpl2 during influenza infection in mice. Although modest increases in morbidity and mortality were attributed to cre-dependent deletion in lung epithelial cells, no alterations in host cytokine production or lung pathology were observed. In vitro, Tpl2 inhibition within the type I airway epithelial cell line, LET1, as well as genetic ablation in primary airway epithelial cells did not alter cytokine production. Overall, these findings establish that Tpl2-dependent defects in cells other than AECs are primarily responsible for the morbidity and mortality seen in influenza-infected mice with global Tpl2 ablation.
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Affiliation(s)
- Kara D. Wyatt
- Department of Infectious Diseases, University of Georgia, Athens, Georgia, United States of America
| | - Demba Sarr
- Department of Infectious Diseases, University of Georgia, Athens, Georgia, United States of America
| | - Kaori Sakamoto
- Department of Pathology, University of Georgia, Athens, Georgia, United States of America
| | - Wendy T. Watford
- Department of Infectious Diseases, University of Georgia, Athens, Georgia, United States of America
- * E-mail:
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33
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Blair L, Pattison MJ, Chakravarty P, Papoutsopoulou S, Bakiri L, Wagner EF, Smale S, Ley SC. TPL-2 Inhibits IFN-β Expression via an ERK1/2-TCF-FOS Axis in TLR4-Stimulated Macrophages. THE JOURNAL OF IMMUNOLOGY 2022; 208:941-954. [PMID: 35082159 PMCID: PMC9012084 DOI: 10.4049/jimmunol.2100213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 10/20/2021] [Indexed: 12/29/2022]
Abstract
TPL-2 activation of ERK1/2 regulates gene expression in TLR-stimulated macrophages. TPL-2 regulates transcription via ERK1/2 phosphorylation of ternary complex factors. TPL-2 inhibits Ifnb1 transcription via ternary complex factor–induced Fos mRNA expression.
TPL-2 kinase plays an important role in innate immunity, activating ERK1/2 MAPKs in myeloid cells following TLR stimulation. We investigated how TPL-2 controls transcription in TLR4-stimulated mouse macrophages. TPL-2 activation of ERK1/2 regulated expression of genes encoding transcription factors, cytokines, chemokines, and signaling regulators. Bioinformatics analysis of gene clusters most rapidly induced by TPL-2 suggested that their transcription was mediated by the ternary complex factor (TCF) and FOS transcription factor families. Consistently, TPL-2 induced ERK1/2 phosphorylation of the ELK1 TCF and the expression of TCF target genes. Furthermore, transcriptomic analysis of TCF-deficient macrophages demonstrated that TCFs mediate approximately half of the transcriptional output of TPL-2 signaling, partially via induced expression of secondary transcription factors. TPL-2 signaling and TCFs were required for maximal TLR4-induced FOS expression. Comparative analysis of the transcriptome of TLR4-stimulated Fos−/− macrophages indicated that TPL-2 regulated a significant fraction of genes by controlling FOS expression levels. A key function of this ERK1/2-TCF-FOS pathway was to mediate TPL-2 suppression of type I IFN signaling, which is essential for host resistance against intracellular bacterial infection.
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Affiliation(s)
- Louise Blair
- Immune Cell Signalling Laboratory, The Francis Crick Institute, London, United Kingdom
| | - Michael J Pattison
- Immune Cell Signalling Laboratory, The Francis Crick Institute, London, United Kingdom
| | - Probir Chakravarty
- Bioinformatics and Biostatistics Technology Platform, The Francis Crick Institute, London, United Kingdom
| | | | - Latifa Bakiri
- Laboratory of Genes and Disease, Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Erwin F Wagner
- Laboratory of Genes and Disease, Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
- Laboratory of Genes and Disease, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Stephen Smale
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA; and
| | - Steven C Ley
- Immune Cell Signalling Laboratory, The Francis Crick Institute, London, United Kingdom;
- Department of Immunology and Inflammation, Imperial College London, London, United Kingdom
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34
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Gao T, Liu T, Ko CJ, Zhang L, Joo D, Xie X, Zhu L, Li Y, Cheng X, Sun SC. Myeloid cell TBK1 restricts inflammatory responses. Proc Natl Acad Sci U S A 2022; 119:e2107742119. [PMID: 35074921 PMCID: PMC8794809 DOI: 10.1073/pnas.2107742119] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 11/23/2021] [Indexed: 12/21/2022] Open
Abstract
Proinflammatory cytokine production by innate immune cells plays a crucial role in inflammatory diseases, but the molecular mechanisms controlling the inflammatory responses are poorly understood. Here, we show that TANK-binding kinase 1 (TBK1) serves as a vital regulator of proinflammatory macrophage function and protects against tissue inflammation. Myeloid cell-conditional Tbk1 knockout (MKO) mice spontaneously developed adipose hypertrophy and metabolic disorders at old ages, associated with increased adipose tissue M1 macrophage infiltration and proinflammatory cytokine expression. When fed with a high-fat diet, the Tbk1-MKO mice also displayed exacerbated hepatic inflammation and insulin resistance, developing symptoms of nonalcoholic steatohepatitis. Furthermore, myeloid cell-specific TBK1 ablation exacerbates inflammation in experimental colitis. Mechanistically, TBK1 functions in macrophages to suppress the NF-κB and MAP kinase signaling pathways and thus attenuate induction of proinflammatory cytokines, particularly IL-1β. Ablation of IL-1 receptor 1 (IL-1R1) eliminates the inflammatory symptoms of Tbk1-MKO mice. These results establish TBK1 as a pivotal anti-inflammatory mediator that restricts inflammation in different disease models.
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Affiliation(s)
- Tianxiao Gao
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Ting Liu
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Chun-Jung Ko
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030;
- Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan 100233
| | - Lingyun Zhang
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Donghyun Joo
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Xiaoping Xie
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Lele Zhu
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Yanchuan Li
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Xuhong Cheng
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Shao-Cong Sun
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030;
- MD Anderson Cancer Center UT Health Graduate School of Biomedical Sciences, Houston, TX 77030
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35
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Fu YS, Duan XQ, Cheng KR, Yan-Yan-Fei, Liu L, Duan HD, Hu Q, Xia SL, Wang XR, Cheng ZF. Geraniol relieves mycoplasma pneumonia infection-induced lung injury in mice through the regulation of ERK/JNK and NF-κB signaling pathways. J Biochem Mol Toxicol 2022; 36:e22984. [PMID: 35038199 DOI: 10.1002/jbt.22984] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 11/08/2021] [Accepted: 12/09/2021] [Indexed: 01/13/2023]
Abstract
BACKGROUND Pneumonia is a serious pediatric lung injury disease caused by Mycoplasma pneumoniae (M. pneumoniae) with increasing global prevalence every year. The WHO has reported that nearly 19% of children die due to pneumonia worldwide. OBJECTIVE The present research was conducted to discover the ameliorative properties of geraniol against M. pneumoniae-provoked pneumonia in mice through the modulation of inflammatory responses. METHODOLOGY The pneumonia was provoked in the male Swiss albino mice via infecting animals with 100 µl of M. pneumoniae for 2 days and supplemented concurrently with 20 mg/kg of geraniol for 3 days. 100 mg/kg of azithromycin was used as a standard drug. The nitric oxide (NO) level and MPO activity were measured using kits. The SOD activity, GSH, and MDA levels were studied using standard methods. The polymerase chain reaction (PCR) study was performed to examine the M. pneumoniae DNA load. The inflammatory cytokines status was assessed by assay kits. The ERK1/2, JNK1/2, and NF-κB expressions were studied by reverse-transcription (RT-PCR). The lung tissues were analyzed microscopically to investigate the histological alterations. RESULTS Geraniol treatment effectively reduced lung weight, NO level, and MPO activity in the pneumonia mice. The total cells and M. pneumoniae DNA load were also decreased by the geraniol. The SOD activity and GSH level were improved and MDA was decreased by the geraniol treatment. The IL-1, IL-6, IL-8, TNF-α, and TGF status were appreciably depleted by the geraniol in the pneumonia mice. Geraniol also suppressed the ERK1/2 and NF-κB expressions in the lung tissues. Histological findings also suggest the therapeutic roles of geraniol against pneumonia in mice. CONCLUSION In summary, our results proved the beneficial roles of geraniol against the M. pneumoniae-provoked pneumonia. Geraniol could be a hopeful therapeutic agent to treat pneumonia in the future.
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Affiliation(s)
- Yang-Shan Fu
- Department of Emergency Medicine, Affiliated Hospital of Yunnan University, Kunming, China
| | - Xue-Qiong Duan
- Department of Emergency Medicine, Affiliated Hospital of Yunnan University, Kunming, China
| | - Ke-Run Cheng
- Department of Clinical Medicine, Sichuan University School of Clinical Medicine, Chengdu, China
| | - Yan-Yan-Fei
- Department of Radiation Oncology, The third affiliated hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, Kunming, China
| | - Lin Liu
- Department of Emergency Medicine, Affiliated Hospital of Yunnan University, Kunming, China
| | - Hong-Dan Duan
- Department of Emergency Medicine, Affiliated Hospital of Yunnan University, Kunming, China
| | - Qin Hu
- Emergency Department, Kunming Second People's Hospital, Kunming, China
| | - Shuang-Li Xia
- Research centre of Pharmacology and Application of Traditional Chinese Medicine, School of Chinese Materia Medica, Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Xin-Ru Wang
- Research on the Prevention and Treatment of Emergency in the Department of Internal Medicine of Traditional Chinese Medicine, the First Clinical School of Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Zhong-Feng Cheng
- Department of Emergency Medicine, Affiliated Hospital of Yunnan University, Kunming, China
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36
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Zhao B, Fan Y, Li H, Zhang C, Han R, Che D. Mitigative effects of Eleutheroside E against the mechanical barrier dysfunction induced by soybean agglutinin in IPEC-J2 cell line. J Anim Physiol Anim Nutr (Berl) 2022; 106:664-670. [PMID: 35014099 DOI: 10.1111/jpn.13677] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 10/06/2021] [Accepted: 11/14/2021] [Indexed: 01/20/2023]
Abstract
Soybean agglutinin (SBA) is an anti-nutritional factor which decreases the mechanical barrier function in intestinal porcine jejunum epithelial cells (IPEC-J2). Eleutheroside E (EE) is a key part of Acanthopanax senticosus to exert pharmacological effects. This study aims to investigate the effects of EE on the barrier function in IPEC-J2 cells and to determine the ability of EE to enhance the protective effect of barrier function against SBA exposure. The IPEC-J2 cells were cultured in mediums with concentration of 0.1 mg/ml EE, 0.5 ml/ml SBA and 0.1 mg/ml EE pre-treated then treated with 0.5 mg/ml SBA. Then, the transepithelial electric resistance (TEER) value, inflammatory cytokines mRNA expression, tight junction mRNA and protein expression were tested by epithelial Voltohm meter, q-PCR and Western blot method respectively. The results showed that cells treated with 0.1 mg/ml EE had lower permeability (p < 0.05) while 0.5 mg/ml SBA treatment had higher permeability through tested TEER, and higher tight junction proteins (Claudin-3 and ZO-1) expressions and genes (Claudin-3, Occludin and ZO-1) expressions (p < 0.05) in 0.1 mg/ml EE group. IPEC-J2 cells pre-treated with 0.1 mg/ml EE could significantly improve the inflammatory response caused by 0.5 mg/ml SBA by up-regulation for IL-10, TGF-β, and down-regulation gene expression of IL-6, TNF-α and IFN-γ (p < 0.05). In conclusion, 0.1 mg/ml EE can improve the mechanical barrier function and could protect the effects while 0.5 mg/ml of SBA-induced barrier dysfunction in IPEC-J2.
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Affiliation(s)
- Bao Zhao
- Jilin Provincial Key Lab of Animal Nutrition and Feed Science, Key Lab of Animal Production & Product Quality, and Security, Ministry of Education, Jilin Provincial Swine Industry Technical Innovation Center, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Yueli Fan
- Jilin Provincial Key Lab of Animal Nutrition and Feed Science, Key Lab of Animal Production & Product Quality, and Security, Ministry of Education, Jilin Provincial Swine Industry Technical Innovation Center, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Huijuan Li
- Jilin Provincial Key Lab of Animal Nutrition and Feed Science, Key Lab of Animal Production & Product Quality, and Security, Ministry of Education, Jilin Provincial Swine Industry Technical Innovation Center, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Chun Zhang
- College of Animal Science and Technology, Changchun University of Science and Technology, Changchun, China
| | - Rui Han
- Jilin Provincial Key Lab of Animal Nutrition and Feed Science, Key Lab of Animal Production & Product Quality, and Security, Ministry of Education, Jilin Provincial Swine Industry Technical Innovation Center, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Dongsheng Che
- Jilin Provincial Key Lab of Animal Nutrition and Feed Science, Key Lab of Animal Production & Product Quality, and Security, Ministry of Education, Jilin Provincial Swine Industry Technical Innovation Center, College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
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DING X, ZHU M, HOU Y. Comparative studies on the structure, biological activity and molecular mechanisms of polysaccharides from Craterellus cornucopioide (CC-M) and Dictyophora indusiata (Vent.ex Pers) Fisch (DI-Z). FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.40421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Xiang DING
- China West Normal University, China; China West Normal University, China
| | - Miao ZHU
- China West Normal University, China
| | - Yiling HOU
- China West Normal University, China; Sichuan Institute of Atomic Energy, China
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Osthole Inhibits Expression of Genes Associated with Toll-like Receptor 2 Signaling Pathway in an Organotypic 3D Skin Model of Human Epidermis with Atopic Dermatitis. Cells 2021; 11:cells11010088. [PMID: 35011650 PMCID: PMC8750192 DOI: 10.3390/cells11010088] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/18/2021] [Accepted: 12/23/2021] [Indexed: 12/15/2022] Open
Abstract
The Toll-like receptor (TLR) family signature has been linked to the etiopathology of atopic dermatitis (AD), a chronic inflammatory skin disease associated with skin barrier dysfunction and immune system imbalance. We aimed to investigate whether osthole (a plant-derived compound) can inhibit the genetic profile of key genes associated with TLR2 signaling (TIRAP, MyD88, IRAK1, TRAF6, IκBα, NFκB) after stimulation with LPS or histamine in a 3D in vitro model of AD. Overexpression of the aforementioned genes may directly increase the secretion of proinflammatory cytokines (CKs) and chemokines (ChKs), which may exacerbate the symptoms of AD. Relative gene expressions were quantified by qPCR and secretion of CKs and ChKs was evaluated by ELISA assay. LPS and histamine increased the relative expression of genes related to the TLR2 pathway, and osthole successfully reduced it. In summary, our results show that osthole inhibits the expression of genes associated with the TLR signaling pathway in a skin model of AD. Moreover, the secretion of CKs and ChKs after treatment of AD with osthole in a 3D skin model in vitro suggests the potential of osthole as a novel compound for the treatment of AD.
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Morsy Y, Brillant N, Franc Y, Scharl M, Wawrzyniak M. Unravelling the Impact of the Genetic Variant rs1042058 within the TPL2 Risk Gene Locus on Molecular and Clinical Disease Course Patients with Inflammatory Bowel Disease. Cells 2021; 10:cells10123589. [PMID: 34944097 PMCID: PMC8700574 DOI: 10.3390/cells10123589] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/08/2021] [Accepted: 12/16/2021] [Indexed: 12/17/2022] Open
Abstract
Background: The single nucleotide polymorphism (SNP) rs1042058 within the gene locus encoding tumor progression locus 2 (TPL2) has been recently identified as a risk gene for inflammatory bowel disease (IBD). TPL2 has been shown to regulate pro-inflammatory signaling and cytokine secretion, while inhibition of TPL2 decreases intestinal inflammation in vivo. However, the clinical and molecular implications of this disease-associated TPL2 variation in IBD patients have not yet been studied. Methods: We analyzed the impact of the IBD-associated TPL2 variation using clinical data of 2145 genotyped patients from the Swiss IBD Cohort Study (SIBDCS). Furthermore, we assessed the molecular consequences of the TPL2 variation in ulcerative colitis (UC) and Crohn’s disease (CD) patients by real-time PCR and multiplex ELISA of colon biopsies or serum, respectively. Results: We found that presence of the SNP rs1042058 within the TPL2 gene locus results in significantly higher numbers of CD patients suffering from peripheral arthritis. In contrast, UC patients carrying this variant feature a lower risk for intestinal surgery. On a molecular level, the presence of the rs1042058 (GG) IBD-risk polymorphism in TPL2 was associated with decreased mRNA levels of IL-10 in CD patients and decreased levels of IL-18 in the intestine of UC patients. Conclusions: Our data suggest that the presence of the IBD-associated TPL2 variation might indicate a more severe disease course in CD patients. These results reveal a potential therapeutic target and demonstrate the relevance of the IBD-associated TPL2 SNP as a predictive biomarker in IBD.
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Affiliation(s)
- Yasser Morsy
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland; (Y.M.); (N.B.); (M.W.)
| | - Nathalie Brillant
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland; (Y.M.); (N.B.); (M.W.)
| | - Yannick Franc
- Center for Primary Care and Public Health (Unisanté), University of Lausanne, 1101 Lausanne, Switzerland;
| | - Michael Scharl
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland; (Y.M.); (N.B.); (M.W.)
- Correspondence: ; Tel.: +41-44-255-3419
| | - Marcin Wawrzyniak
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland; (Y.M.); (N.B.); (M.W.)
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Fang C, Wang L, Qiao J, Chang L, He Q, Zhang X, Liu M. Differential regulation of lipopolysaccharide-induced IL-1β and TNF-α production in macrophages by palmitate via modulating TLR4 downstream signaling. Int Immunopharmacol 2021; 103:108456. [PMID: 34923420 DOI: 10.1016/j.intimp.2021.108456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 12/06/2021] [Accepted: 12/08/2021] [Indexed: 11/25/2022]
Abstract
Diabetic patients are susceptible to infectious diseases. Bacterial invasion activates immune cells such as macrophages through interaction between LPS and TLR4, and induces the expression of inflammatory mediators, including IL-1β and TNF-α, which play key roles in the elimination of infections. Unregulated overproduction or underproduction of these cytokines has been reported as a major factor in the development of septic shock, immune deficiency, and autoimmunity. Recent studies found that metabolic abnormalities of diabetes, such as hyperglycemia and dyslipidemia, played a major role in modulating the immune response. In this study, we studied the effects of palmitic acid (PA) pretreatment on LPS-induced IL-1β and TNF-α production and LPS-TLR4 signaling in macrophages. Compared with control, PA pretreatment significantly increased LPS-induced TNF-α production and secretion in macrophages. In contrast, LPS-induced IL-1β production and secretion was significantly suppressed by PA pretreatment. PA pretreatment did not affect the expression levels of TLR4 or Myd88, or the endocytosis of TLR4 in macrophages. However, PA pretreatment significantly suppressed the phosphorylation level and nuclear translocation of NF-κB, and the phosphorylation level of ERK1/2, whereas increased the phosphorylation levels of p38 and JNK. The activation of IKK which was upstream of NF-κB and ERK1/2 was attenuated, while the activation of TAK1 which was upstream of JNK and p38 was augmented by PA pretreatment. Inhibitors of NF-κB, MEK1/2, and p38 significantly decreased IL-1β expression, while JNK and p38 pathway inhibitors significantly inhibited TNF-α expression. The differential regulation of LPS-induced TNF-α and IL-1β production by PA was associated with cellular metabolism of PA, because inhibiting metabolism of PA with etomoxir or pretreatment with Br-PA which cannot be metabolized reversed these effects. We also showed that PA treatment increased acetylated IKK level which might contribute to the suppressed activation of IKK. The present study showed that LPS-induced production of TNF-α and IL-1β was regulated by different TLR4 downstream pathways in macrophages. PA differentially affected LPS-induced production of TNF-α and IL-1β in macrophages through differentially modulating these pathways. Further experiments will be needed to determine how these phenomena lead to the impaired immune response in patients with diabetes.
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Affiliation(s)
- Chunyun Fang
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, China
| | - Lixia Wang
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, China
| | - Jingting Qiao
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, China
| | - Lina Chang
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, China
| | - Qing He
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, China.
| | - Xiaona Zhang
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, China.
| | - Ming Liu
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, China.
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Su C, Rousseau S, Emad A. Identification of transcriptional regulatory network associated with response of host epithelial cells to SARS-CoV-2. Sci Rep 2021; 11:23928. [PMID: 34907210 PMCID: PMC8671548 DOI: 10.1038/s41598-021-03309-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 12/01/2021] [Indexed: 12/15/2022] Open
Abstract
Identification of transcriptional regulatory mechanisms and signaling networks involved in the response of host cells to infection by SARS-CoV-2 is a powerful approach that provides a systems biology view of gene expression programs involved in COVID-19 and may enable the identification of novel therapeutic targets and strategies to mitigate the impact of this disease. In this study, our goal was to identify a transcriptional regulatory network that is associated with gene expression changes between samples infected by SARS-CoV-2 and those that are infected by other respiratory viruses to narrow the results on those enriched or specific to SARS-CoV-2. We combined a series of recently developed computational tools to identify transcriptional regulatory mechanisms involved in the response of epithelial cells to infection by SARS-CoV-2, and particularly regulatory mechanisms that are specific to this virus when compared to other viruses. In addition, using network-guided analyses, we identified kinases associated with this network. The results identified pathways associated with regulation of inflammation (MAPK14) and immunity (BTK, MBX) that may contribute to exacerbate organ damage linked with complications of COVID-19. The regulatory network identified herein reflects a combination of known hits and novel candidate pathways supporting the novel computational pipeline presented herein to quickly narrow down promising avenues of investigation when facing an emerging and novel disease such as COVID-19.
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Affiliation(s)
- Chen Su
- Department of Electrical and Computer Engineering, McGill University, 755, McConnell Engineering Building, 3480 University Street, Montreal, QC, H3A 0E9, Canada
| | - Simon Rousseau
- The Meakins-Christie Laboratories at the Research Institute of McGill University Heath Centre (RI-MUHC), McGill University, E M3.2244, 1001 Décarie, Montreal, QC, H4A 3J1, Canada.
- Department of Medicine, Faculty of Medicine, McGill University, Montreal, QC, Canada.
| | - Amin Emad
- Department of Electrical and Computer Engineering, McGill University, 755, McConnell Engineering Building, 3480 University Street, Montreal, QC, H3A 0E9, Canada.
- The Meakins-Christie Laboratories at the Research Institute of McGill University Heath Centre (RI-MUHC), McGill University, E M3.2244, 1001 Décarie, Montreal, QC, H4A 3J1, Canada.
- Mila, Quebec AI Institute, Montreal, QC, Canada.
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Zhao C, Wang F, Tang B, Han J, Li X, Lian G, Li X, Hao S. Anti-inflammatory effects of kaempferol-3-O-rhamnoside on HSV-1 encephalitis in vivo and in vitro. Neurosci Lett 2021; 765:136172. [PMID: 34433098 DOI: 10.1016/j.neulet.2021.136172] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 08/01/2021] [Accepted: 08/11/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Herpes simplex virus encephalitis (HSE) is an acute central nervous system infectious disease caused by herpes simplex virus (HSV). Currently, there is no effective treatment for HSE infection, which produces many pro-inflammatory factors. Kaempferol-3-O-rhamnoside (K-3-rh) is a plant flavonoid. This study was investigated the anti-inflammatory effect of K-3-rh on encephalitis induced by HSV-1. METHODS HSV-1 was co-cultured with VERO cells. Cells were divided into four groups, including the control group, virus group, K-3-rh group, Astragalus polysaccharide (APS) group and dexamethasone group. Flow cytometry were utilized to determine cell apoptosis, respectively. Proteins and mRNAs were estimated by western blot and qRT-PCR, respectively. RESULTS After viral infection, the cytokines were significantly increased. After K-3-rh intervention, the expression of tumor necrosis factor-α (TNF-α), interleukin-1 beta (IL-1β), and nitric oxide (NO) in microglia were reduced contrast with those in the virus group, and the expression of interleukin-10 (IL-10) did not change. After viral infection, the apoptotic rate increased significantly, and K-3-rh could inhibit viral-induced apoptosis in the microglial cell line. The induction of microglia apoptosis was achieved by cytochrome c and caspase-9-mediated mitochondrial pathway. Also, the pathological changes of brain tissue in mice of each drug intervention group were alleviated. CONCLUSIONS In conclusion, K-3-rh had the potential to reduce HSV-1-induced brain injury by reducing the secretion of microglial pro-inflammatory factors, inducing apoptosis of microglia cells, and through cytochrome C and caspase-3 pathway.
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Affiliation(s)
- Chaoyang Zhao
- Department of Pharmacy, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang City, Hubei Province 441000, People's Republic of China
| | - Fen Wang
- Department of Neurology, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang City, Hubei Province 441000,People's Republic of China
| | - Bolin Tang
- Department of Neurology, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang City, Hubei Province 441000,People's Republic of China.
| | - Jun Han
- Department of Neurology, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang City, Hubei Province 441000,People's Republic of China.
| | - Xiang Li
- Department of Pediatrics, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang City, Hubei Province 441000,People's Republic of China
| | - Guo Lian
- Department of Pharmacy, Xiang Yang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang City, Hubei Province 441021, People's Republic of China
| | - Xiaolong Li
- Department of Neurology, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang City, Hubei Province 441000,People's Republic of China
| | - Shisheng Hao
- Department of Neurology, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang City, Hubei Province 441000,People's Republic of China
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Quercetin and HSC70 coregulate the anti-inflammatory action of the ubiquitin-like protein MNSFβ. Mol Biol Rep 2021; 49:1213-1222. [PMID: 34773179 DOI: 10.1007/s11033-021-06949-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 11/09/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Quercetin is a flavonol that modifies many cellular processes. Monoclonal nonspecific suppressor factor β is a member of the ubiquitin-like family of proteins that are involved in various biological processes. It has been demonstrated that quercetin regulates the effect of MNSFβ on tumor necrosis factor-α secretion in lipopolysaccharide (LPS)-stimulated macrophages. This study found that quercetin and the heat shock protein HSC70 coregulate the action of MNSFβ. METHODS AND RESULTS Quercetin dose-dependently suppressed the LPS/interferon γ-induced nitric oxide production without cytotoxicity in the macrophage-like cell line Raw264.7. SiRNA knockdown experiments showed that quercetin inhibited the MNSFβ and HSC70 siRNA-mediated enhancement of TNFα and the production of RANTES, a member of C-C chemokine superfamily, in LPS-stimulated Raw264.7 cells. Western blot analysis showed that quercetin and HSC70 regulated ERK1/2 activation and LPS-stimulated IκBα degradation by affecting the complex formation of MNSFβ and the proapoptotic protein Bcl-G. Moreover, MNSFβ is implicated in TLR4/MyD88 signaling but not in TLR3 signaling. CONCLUSIONS HSC70 is an important chaperone that facilitates the stabilization of MNSFβ. Quercetin may negatively control the function of MNSFβ by regulating the action of the molecular chaperone HSC70. MNSFβ mediates TLR4/Myd88 signaling but not TLR3 signaling.
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Mathien S, Tesnière C, Meloche S. Regulation of Mitogen-Activated Protein Kinase Signaling Pathways by the Ubiquitin-Proteasome System and Its Pharmacological Potential. Pharmacol Rev 2021; 73:263-296. [PMID: 34732541 DOI: 10.1124/pharmrev.120.000170] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Mitogen-activated protein kinase (MAPK) cascades are evolutionarily conserved signaling pathways that play essential roles in transducing extracellular environmental signals into diverse cellular responses to maintain homeostasis. These pathways are classically organized into an architecture of three sequentially acting protein kinases: a MAPK kinase kinase that phosphorylates and activates a MAPK kinase, which in turn phosphorylates and activates the effector MAPK. The activity of MAPKs is tightly regulated by phosphorylation of their activation loop, which can be modulated by positive and negative feedback mechanisms to control the amplitude and duration of the signal. The signaling outcomes of MAPK pathways are further regulated by interactions of MAPKs with scaffolding and regulatory proteins. Accumulating evidence indicates that, in addition to these mechanisms, MAPK signaling is commonly regulated by ubiquitin-proteasome system (UPS)-mediated control of the stability and abundance of MAPK pathway components. Notably, the biologic activity of some MAPKs appears to be regulated mainly at the level of protein turnover. Recent studies have started to explore the potential of targeted protein degradation as a powerful strategy to investigate the biologic functions of individual MAPK pathway components and as a new therapeutic approach to overcome resistance to current small-molecule kinase inhibitors. Here, we comprehensively review the mechanisms, physiologic importance, and pharmacological potential of UPS-mediated protein degradation in the control of MAPK signaling. SIGNIFICANCE STATEMENT: Accumulating evidence highlights the importance of targeted protein degradation by the ubiquitin-proteasome system in regulating and fine-tuning the signaling output of mitogen-activated protein kinase (MAPK) pathways. Manipulating protein levels of MAPK cascade components may provide a novel approach for the development of selective pharmacological tools and therapeutics.
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Affiliation(s)
- Simon Mathien
- Institute for Research in Immunology and Cancer, Montreal, Quebec, Canada (S.Ma., C.T., S.Me.); and Molecular Biology Program, Faculty of Medicine (C.T., S.Me.) and Department of Pharmacology and Physiology (S.Me.), Université de Montréal, Montreal, Quebec, Canada
| | - Chloé Tesnière
- Institute for Research in Immunology and Cancer, Montreal, Quebec, Canada (S.Ma., C.T., S.Me.); and Molecular Biology Program, Faculty of Medicine (C.T., S.Me.) and Department of Pharmacology and Physiology (S.Me.), Université de Montréal, Montreal, Quebec, Canada
| | - Sylvain Meloche
- Institute for Research in Immunology and Cancer, Montreal, Quebec, Canada (S.Ma., C.T., S.Me.); and Molecular Biology Program, Faculty of Medicine (C.T., S.Me.) and Department of Pharmacology and Physiology (S.Me.), Université de Montréal, Montreal, Quebec, Canada
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Latha K, Jamison KF, Watford WT. Tpl2 Ablation Leads to Hypercytokinemia and Excessive Cellular Infiltration to the Lungs During Late Stages of Influenza Infection. Front Immunol 2021; 12:738490. [PMID: 34691044 PMCID: PMC8529111 DOI: 10.3389/fimmu.2021.738490] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/07/2021] [Indexed: 01/22/2023] Open
Abstract
Tumor progression locus 2 (Tpl2) is a serine-threonine kinase known to promote inflammation in response to various pathogen-associated molecular patterns (PAMPs), inflammatory cytokines and G-protein-coupled receptors and consequently aids in host resistance to pathogens. We have recently shown that Tpl2-/- mice succumb to infection with a low-pathogenicity strain of influenza (x31, H3N2) by an unknown mechanism. In this study, we sought to characterize the cytokine and immune cell profile of influenza-infected Tpl2-/- mice to gain insight into its host protective effects. Although Tpl2-/- mice display modestly impaired viral control, no virus was observed in the lungs of Tpl2-/- mice on the day of peak morbidity and mortality suggesting that morbidity is not due to virus cytopathic effects but rather to an overactive antiviral immune response. Indeed, increased levels of interferon-β (IFN-β), the IFN-inducible monocyte chemoattractant protein-1 (MCP-1, CCL2), Macrophage inflammatory protein 1 alpha (MIP-1α; CCL3), MIP-1β (CCL4), RANTES (CCL5), IP-10 (CXCL10) and Interferon-γ (IFN-γ) was observed in the lungs of influenza-infected Tpl2-/- mice at 7 days post infection (dpi). Elevated cytokine and chemokines were accompanied by increased infiltration of the lungs with inflammatory monocytes and neutrophils. Additionally, we noted that increased IFN-β correlated with increased CCL2, CXCL1 and nitric oxide synthase (NOS2) expression in the lungs, which has been associated with severe influenza infections. Bone marrow chimeras with Tpl2 ablation localized to radioresistant cells confirmed that Tpl2 functions, at least in part, within radioresistant cells to limit pro-inflammatory response to viral infection. Collectively, this study suggests that Tpl2 tempers inflammation during influenza infection by constraining the production of interferons and chemokines which are known to promote the recruitment of detrimental inflammatory monocytes and neutrophils.
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Affiliation(s)
- Krishna Latha
- Department of Infectious Diseases, University of Georgia, Athens, GA, United States
| | - Katelyn F. Jamison
- Department of Cellular Biology, University of Georgia, Athens, GA, United States
| | - Wendy T. Watford
- Department of Infectious Diseases, University of Georgia, Athens, GA, United States
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Wyatt KD, Sakamoto K, Watford WT. Tamoxifen administration induces histopathologic changes within the lungs of Cre-recombinase-negative mice: A case report. Lab Anim 2021; 56:297-303. [PMID: 34551640 DOI: 10.1177/00236772211042968] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Tamoxifen is commonly used as a cancer treatment in humans and for inducing genetic alterations using Cre-lox mouse models in the research setting. However, the extent of tamoxifen off-target effects in animal research is underappreciated. Here, we report significant changes in cellular infiltration in Cre-recombinase-negative mice treated with tamoxifen intraperitoneally. These changes were noted in the lungs, which were characterized by the presence of alveolitis, vasculitis, and pleuritis. Despite significant immunological changes in response to tamoxifen treatment, clinical symptoms were not observed. This study provides a cautionary note that tamoxifen treatment alone leads to histologic alterations that may obscure research interpretations and further highlights the need for the development of alternative mouse models for inducible Cre-mediated deletion.
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Affiliation(s)
- Kara D Wyatt
- Department of Infectious Diseases, University of Georgia, USA
| | | | - Wendy T Watford
- Department of Infectious Diseases, University of Georgia, USA
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47
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Lucas RM, Liu L, Curson JEB, Koh YWH, Tuladhar N, Condon ND, Das Gupta K, Burgener SS, Schroder K, Ingley E, Sweet MJ, Stow JL, Luo L. SCIMP is a spatiotemporal transmembrane scaffold for Erk1/2 to direct pro-inflammatory signaling in TLR-activated macrophages. Cell Rep 2021; 36:109662. [PMID: 34496234 DOI: 10.1016/j.celrep.2021.109662] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 07/12/2021] [Accepted: 08/13/2021] [Indexed: 02/06/2023] Open
Abstract
Immune cells are armed with Toll-like receptors (TLRs) for sensing and responding to pathogens and other danger cues. The role of extracellular-signal-regulated kinases 1/2 (Erk1/2) in TLR signaling remains enigmatic, with both pro- and anti-inflammatory functions described. We reveal here that the immune-specific transmembrane adaptor SCIMP is a direct scaffold for Erk1/2 in TLR pathways, with high-resolution, live-cell imaging revealing that SCIMP guides the spatial and temporal recruitment of Erk2 to membrane ruffles and macropinosomes for pro-inflammatory TLR4 signaling. SCIMP-deficient mice display defects in Erk1/2 recruitment to TLR4, c-Fos activation, and pro-inflammatory cytokine production, with these effects being phenocopied by Erk1/2 signaling inhibition. Our findings thus delineate a selective role for SCIMP as a key scaffold for the membrane recruitment of Erk1/2 kinase to initiate TLR-mediated pro-inflammatory responses in macrophages.
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Affiliation(s)
- Richard M Lucas
- Institute for Molecular Bioscience (IMB) and IMB Centre for Inflammation and Disease Research, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Liping Liu
- Institute for Molecular Bioscience (IMB) and IMB Centre for Inflammation and Disease Research, The University of Queensland, Brisbane, QLD 4072, Australia
| | - James E B Curson
- Institute for Molecular Bioscience (IMB) and IMB Centre for Inflammation and Disease Research, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Yvette W H Koh
- Institute for Molecular Bioscience (IMB) and IMB Centre for Inflammation and Disease Research, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Neeraj Tuladhar
- Institute for Molecular Bioscience (IMB) and IMB Centre for Inflammation and Disease Research, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Nicholas D Condon
- Institute for Molecular Bioscience (IMB) and IMB Centre for Inflammation and Disease Research, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Kaustav Das Gupta
- Institute for Molecular Bioscience (IMB) and IMB Centre for Inflammation and Disease Research, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Sabrina S Burgener
- Institute for Molecular Bioscience (IMB) and IMB Centre for Inflammation and Disease Research, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Kate Schroder
- Institute for Molecular Bioscience (IMB) and IMB Centre for Inflammation and Disease Research, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Evan Ingley
- Cell Signalling Group, Harry Perkins Institute of Medical Research and Centre for Medical Research, The University of Western Australia, Perth, WA 6009, Australia; Discipline of Medical, Molecular and Forensic Sciences, College of Science, Health, Engineering and Education, Murdoch University, Murdoch, WA 6150, Australia
| | - Matthew J Sweet
- Institute for Molecular Bioscience (IMB) and IMB Centre for Inflammation and Disease Research, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Jennifer L Stow
- Institute for Molecular Bioscience (IMB) and IMB Centre for Inflammation and Disease Research, The University of Queensland, Brisbane, QLD 4072, Australia.
| | - Lin Luo
- Institute for Molecular Bioscience (IMB) and IMB Centre for Inflammation and Disease Research, The University of Queensland, Brisbane, QLD 4072, Australia.
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Silke J, O’Reilly LA. NF-κB and Pancreatic Cancer; Chapter and Verse. Cancers (Basel) 2021; 13:4510. [PMID: 34572737 PMCID: PMC8469693 DOI: 10.3390/cancers13184510] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/29/2021] [Accepted: 08/30/2021] [Indexed: 02/07/2023] Open
Abstract
Pancreatic Ductal Adenocarcinoma (PDAC) is one of the world's most lethal cancers. An increase in occurrence, coupled with, presently limited treatment options, necessitates the pursuit of new therapeutic approaches. Many human cancers, including PDAC are initiated by unresolved inflammation. The transcription factor NF-κB coordinates many signals that drive cellular activation and proliferation during immunity but also those involved in inflammation and autophagy which may instigate tumorigenesis. It is not surprising therefore, that activation of canonical and non-canonical NF-κB pathways is increasingly recognized as an important driver of pancreatic injury, progression to tumorigenesis and drug resistance. Paradoxically, NF-κB dysregulation has also been shown to inhibit pancreatic inflammation and pancreatic cancer, depending on the context. A pro-oncogenic or pro-suppressive role for individual components of the NF-κB pathway appears to be cell type, microenvironment and even stage dependent. This review provides an outline of NF-κB signaling, focusing on the role of the various NF-κB family members in the evolving inflammatory PDAC microenvironment. Finally, we discuss pharmacological control of NF-κB to curb inflammation, focussing on novel anti-cancer agents which reinstate the process of cancer cell death, the Smac mimetics and their pre-clinical and early clinical trials.
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Affiliation(s)
- John Silke
- Inflammation Division, Walter and Eliza Hall Institute of Medical Research (WEHI), Parkville, VIC 3052, Australia;
- Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Lorraine Ann O’Reilly
- Inflammation Division, Walter and Eliza Hall Institute of Medical Research (WEHI), Parkville, VIC 3052, Australia;
- Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia
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Bello SF, Xu H, Guo L, Li K, Zheng M, Xu Y, Zhang S, Bekele EJ, Bahareldin AA, Zhu W, Zhang D, Zhang X, Ji C, Nie Q. Hypothalamic and ovarian transcriptome profiling reveals potential candidate genes in low and high egg production of white Muscovy ducks (Cairina moschata). Poult Sci 2021; 100:101310. [PMID: 34298381 PMCID: PMC8322464 DOI: 10.1016/j.psj.2021.101310] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 05/24/2021] [Accepted: 06/01/2021] [Indexed: 01/16/2023] Open
Abstract
In China, the low egg production rate is a major challenge to Muscovy duck farmers. Hypothalamus and ovary play essential role in egg production of birds. However, there are little or no reports from these tissues to identify potential candidate genes responsible for egg production in White Muscovy ducks. A total of 1,537 laying ducks were raised; the egg production traits which include age at first egg (days), number of eggs at 300 d, and number of eggs at 59 wk were recorded. Moreover, 4 lowest (LP) and 4 highest producing (HP) were selected at 59 wk of age, respectively. To understand the mechanism of egg laying regulation, we sequenced the hypothalamus and ovary transcriptome profiles in LP and HP using RNA-Seq. The results showed that the number of eggs at 300 d and number of eggs at 59 wk in the HP were significantly more (P < 0.001) than the LP ducks. In total, 106.98G clean bases were generated from 16 libraries with an average of 6.68G clean bases for each library. Further analysis showed 569 and 2,259 differentially expressed genes (DEGs) were identified in the hypothalamus and ovary between LP and HP, respectively. The KEGG pathway enrichment analysis revealed 114 and 139 pathways in the hypothalamus and ovary, respectively which includes Calcium signaling pathway, ECM-receptor interaction, Focal adhesion, MAPK signaling pathway, Apoptosis and Apelin signaling pathways that are involved in egg production. Based on the GO terms and KEGG pathways results, 10 potential candidate genes (P2RX1, LPAR2, ADORA1, FN1, AKT3, ADCY5, ADCY8, MAP3K8, PXN, and PTTG1) were identified to be responsible for egg production. Further, protein-protein interaction was analyzed to show the relationship between these candidate genes. Therefore, this study provides useful information on transcriptome of hypothalamus and ovary of LP and HP Muscovy ducks.
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Affiliation(s)
- Semiu Folaniyi Bello
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, Guangdong, China
| | - Haiping Xu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, Guangdong, China
| | - Lijin Guo
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, Guangdong, China
| | - Kan Li
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, Guangdong, China
| | - Ming Zheng
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, Guangdong, China
| | - Yibin Xu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, Guangdong, China
| | - Siyu Zhang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, Guangdong, China
| | - Endashaw Jebessa Bekele
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, Guangdong, China
| | - Ali Abdalla Bahareldin
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, Guangdong, China
| | - Weijian Zhu
- Wens Foodstuff Group Co. Ltd., Yunfu, 527400 Guangdong, China
| | - Dexiang Zhang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, Guangdong, China; Wens Foodstuff Group Co. Ltd., Yunfu, 527400 Guangdong, China
| | - Xiquan Zhang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, Guangdong, China
| | - Congliang Ji
- Wens Foodstuff Group Co. Ltd., Yunfu, 527400 Guangdong, China
| | - Qinghua Nie
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, Guangdong, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, Guangdong, China; Wens Foodstuff Group Co. Ltd., Yunfu, 527400 Guangdong, China.
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Schreuder WH, van der Wal JE, de Lange J, van den Berg H. Multiple versus solitary giant cell lesions of the jaw: Similar or distinct entities? Bone 2021; 149:115935. [PMID: 33771761 DOI: 10.1016/j.bone.2021.115935] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 02/27/2021] [Accepted: 03/17/2021] [Indexed: 02/06/2023]
Abstract
The majority of giant cell lesions of the jaw present as a solitary focus of disease in bones of the maxillofacial skeleton. Less frequently they occur as multifocal lesions. This raises the clinical dilemma if these should be considered distinct entities and therefore each need a specific therapeutic approach. Solitary giant cell lesions of the jaw present with a great diversity of symptoms. Recent molecular analysis revealed that these are associated with somatic gain-of-function mutations in KRAS, FGFR1 or TRPV4 in a large component of the mononuclear stromal cells which all act on the RAS/MAPK pathway. For multifocal lesions, a small group of neoplastic multifocal giant cell lesions of the jaw remain after ruling out hyperparathyroidism. Strikingly, most of these patients are diagnosed with jaw lesions before the age of 20 years, thus before the completion of dental and jaw development. These multifocal lesions are often accompanied by a diagnosis or strong clinical suspicion of a syndrome. Many of the frequently reported syndromes belong to the so-called RASopathies, with germline or mosaic mutations leading to downstream upregulation of the RAS/MAPK pathway. The other frequently reported syndrome is cherubism, with gain-of-function mutations in the SH3BP2 gene leading through assumed and unknown signaling to an autoinflammatory bone disorder with hyperactive osteoclasts and defective osteoblastogenesis. Based on this extensive literature review, a RAS/MAPK pathway activation is hypothesized in all giant cell lesions of the jaw. The different interaction between and contribution of deregulated signaling in individual cell lineages and crosstalk with other pathways among the different germline- and non-germline-based alterations causing giant cell lesions of the jaw can be explanatory for the characteristic clinical features. As such, this might also aid in the understanding of the age-dependent symptomatology of syndrome associated giant cell lesions of the jaw; hopefully guiding ideal timing when installing treatment strategies in the future.
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Affiliation(s)
- Willem H Schreuder
- Department of Oral and Maxillofacial Surgery, Amsterdam UMC and Academic Center for Dentistry Amsterdam, University of Amsterdam, Amsterdam, the Netherlands; Department of Head and Neck Surgery and Oncology, Antoni van Leeuwenhoek / Netherlands Cancer Institute, Amsterdam, the Netherlands.
| | - Jacqueline E van der Wal
- Department of Pathology, Antoni van Leeuwenhoek / Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Jan de Lange
- Department of Oral and Maxillofacial Surgery, Amsterdam UMC and Academic Center for Dentistry Amsterdam, University of Amsterdam, Amsterdam, the Netherlands
| | - Henk van den Berg
- Department of Pediatrics / Oncology, Amsterdam UMC, University of Amsterdam, Emma Children's Hospital, Amsterdam, the Netherlands
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