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Huang K, Zhang Q, Wan H, Ban X, Chen X, Wan X, Lu R, He Y, Xiong K. TAK1 at the crossroads of multiple regulated cell death pathways: from molecular mechanisms to human diseases. FEBS J 2025. [DOI: 10.1111/febs.70042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2024] [Accepted: 02/14/2025] [Indexed: 05/03/2025]
Abstract
Regulated cell death (RCD), the form of cell death that can be genetically controlled by multiple signaling pathways, plays an important role in organogenesis, tissue remodeling, and maintenance of organism homeostasis and is closely associated with various human diseases. Transforming growth factor‐beta‐activated kinase 1 (TAK1) is a member of the serine/threonine protein kinase family, which can respond to different internal and external stimuli and participate in inflammatory and immune responses. Emerging evidence suggests that TAK1 is an important regulator at the crossroad of multiple RCD pathways, including apoptosis, necroptosis, pyroptosis, and PANoptosis. The regulation of TAK1 affects disease progression through multiple signaling pathways, and therapeutic strategies targeting TAK1 have been proposed for inflammatory diseases, central nervous system diseases, and cancers. In this review, we provide an overview of the downstream signaling pathways regulated by TAK1 and its binding proteins. Their critical regulatory roles in different forms of cell death are also summarized. In addition, we discuss the potential of targeting TAK1 in the treatment of human diseases, with a specific focus on neurological disorders and cancer.
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Affiliation(s)
- Kun Huang
- Department of Human Anatomy and Neurobiology, School of Basic Medical Science Central South University Changsha China
- Xiangya School of Medicine Central South University Changsha China
| | - Qi Zhang
- Department of Human Anatomy and Neurobiology, School of Basic Medical Science Central South University Changsha China
- Department of Ophthalmology Stanford University School of Medicine Palo Alto CA USA
- Key Laboratory of Emergency and Trauma of Ministry of Education, College of Emergency and Trauma Hainan Medical University Haikou China
| | - Hao Wan
- Department of Human Anatomy and Neurobiology, School of Basic Medical Science Central South University Changsha China
| | - Xiao‐Xia Ban
- Department of Human Anatomy and Neurobiology, School of Basic Medical Science Central South University Changsha China
| | - Xin‐Yu Chen
- Department of Human Anatomy and Neurobiology, School of Basic Medical Science Central South University Changsha China
| | - Xin‐Xing Wan
- Department of Endocrinology Third Xiangya Hospital, Central South University Changsha China
| | - Rui Lu
- Department of Molecular and Cellular Physiology Stanford University Stanford CA USA
| | - Ye He
- Department of Human Anatomy and Neurobiology, School of Basic Medical Science Central South University Changsha China
- Changsha Aier Eye Hospital China
| | - Kun Xiong
- Department of Human Anatomy and Neurobiology, School of Basic Medical Science Central South University Changsha China
- Key Laboratory of Emergency and Trauma of Ministry of Education, College of Emergency and Trauma Hainan Medical University Haikou China
- Hunan Key Laboratory of Ophthalmology Changsha China
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Chen H, Lin C, Zhang B, Yan L, Zhang B, Wang P, Qiu L, Zhao C. Identification of scavenger receptor (LmSRA3) gene and its immune response to Aeromonas veronii in Lateolabrax maculatus. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2025; 164:105320. [PMID: 39837471 DOI: 10.1016/j.dci.2025.105320] [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: 12/10/2024] [Revised: 01/16/2025] [Accepted: 01/17/2025] [Indexed: 01/23/2025]
Abstract
Scavenger receptors (SRs) serve as essential pattern recognition receptors in the innate immune system, playing multiple roles in the immunity of fish. They contribute to defense mechanisms against pathogenic infections through various pathways. However, research on the functions of SRs in the immune response of Spotted sea bass remains limited. Here, the LmSRA3 gene was cloned and identified from Spotted sea bass, and a bioinformatic analysis of the sequence was conducted. This analysis revealed that the open reading frame of LmSRA3 spans 1821 bp and encodes 606 amino acids. The estimated molecular mass of this protein is 66.62 kDa, accompanied by isoelectric point of 6.06. It contains a collagen domain, a low-complexity structure, and two coiled-coils regions. Multiple sequence comparisons and phylogenetic analyses demonstrated that the LmSRA3 sequence is notably conserved among fish species. Furthermore, qPCR analysis showed that the LmSRA3 gene is expressed in all examined tissues, with the highest expression in the intestine. In the head kidney, spleen, blood, and intestine after infection with A. veronii, the expression levels of the LmSRA3 gene generally exhibited a pattern of first increasing followed by decreasing, suggesting that LmSRA3 may be involved in the immune response to A. veronii infection through multiple pathways. Subcellular localization experiments revealed that LmSRA3 is predominantly distributed in the cytoplasm. Additionally, results from the enzyme-linked immunosorbent assay indicated the binding capacity of LmSRA3 to A. veronii is not significant. Furthermore, interference or overexpression of LmSRA3 significantly affected the expression of RelA, MyD88, TNFR1, and IL-1β. These results emphasize that LmSRA3 may play a crucial role in the innate immune response of Spotted sea bass and provides insights into the mechanism by which SRs are in the antibacterial immunity of this species.
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Affiliation(s)
- Huilong Chen
- College of Aqua-life Science and Technology, Shanghai Ocean University, Shanghai, China; Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Changhong Lin
- College of Aqua-life Science and Technology, Shanghai Ocean University, Shanghai, China; Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Bo Zhang
- Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China; Sanya Tropical Fisheries Research Institute, Sanya, China
| | - Lulu Yan
- Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China; Sanya Tropical Fisheries Research Institute, Sanya, China
| | - Bo Zhang
- Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China; Sanya Tropical Fisheries Research Institute, Sanya, China
| | - Pengfei Wang
- Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China; Sanya Tropical Fisheries Research Institute, Sanya, China
| | - Lihua Qiu
- Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China; Sanya Tropical Fisheries Research Institute, Sanya, China; Key Laboratory of Aquatic Genomics, Ministry of Agriculture and Rural Affairs, Chinese Academy of Fishery Science, Beijing, China
| | - Chao Zhao
- Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China; Sanya Tropical Fisheries Research Institute, Sanya, China.
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3
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Lo CH. TNF receptors: Structure-function relationships and therapeutic targeting strategies. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2025; 1867:184394. [PMID: 39442606 DOI: 10.1016/j.bbamem.2024.184394] [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: 02/17/2024] [Revised: 10/14/2024] [Accepted: 10/16/2024] [Indexed: 10/25/2024]
Abstract
Tumor necrosis factor receptors (TNFR1 and TNFR2) play key roles in mediating inflammatory response and cell death signaling, which are associated with autoimmune disorders, neurodegenerative diseases, and cancers. The structure-function relationships of TNF receptors and their ligands determine the activation or inhibition of downstream signaling pathways. Available crystal structures have provided critical insights into the therapeutic targeting strategies of TNF receptors and their signaling networks. In this review, we discuss the potential of targeting receptor-ligand and receptor-receptor interactions in a competitive manner as well as perturbing receptor conformational dynamics through an allosteric mechanism to modulate TNF receptor signaling. We propose that conformational states of TNF receptors can act as a molecular switch in determining their functions and are important therapeutic targets. The knowledge of the structure-function relationships of TNF receptors can be applied to translational high-throughput drug screening and design of novel receptor-specific modulators with enhanced pharmacological properties.
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MESH Headings
- Humans
- Structure-Activity Relationship
- Signal Transduction/drug effects
- Ligands
- Receptors, Tumor Necrosis Factor/metabolism
- Receptors, Tumor Necrosis Factor/chemistry
- Receptors, Tumor Necrosis Factor, Type I/chemistry
- Receptors, Tumor Necrosis Factor, Type I/metabolism
- Animals
- Protein Conformation
- Receptors, Tumor Necrosis Factor, Type II/chemistry
- Receptors, Tumor Necrosis Factor, Type II/metabolism
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Affiliation(s)
- Chih Hung Lo
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore; Department of Biology, Syracuse University, NY 13244, USA; Interdisciplinary Neuroscience Program, Syracuse University, NY 13244, USA.
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4
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Hwang J, Rao TC, Tao J, Sha B, Narimatsu Y, Clausen H, Mattheyses AL, Bellis SL. Apoptotic signaling by TNFR1 is inhibited by the α2-6 sialylation, but not α2-3 sialylation, of the TNFR1 N-glycans. J Biol Chem 2025; 301:108043. [PMID: 39615678 PMCID: PMC11732462 DOI: 10.1016/j.jbc.2024.108043] [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: 06/13/2024] [Revised: 11/18/2024] [Accepted: 11/20/2024] [Indexed: 12/15/2024] Open
Abstract
The TNF-TNFR1 signaling pathway plays a pivotal role in regulating the balance between cell survival and cell death. Upon binding to TNF, plasma membrane-localized TNFR1 initiates survival signaling, whereas TNFR1 internalization promotes caspase-mediated apoptosis. We previously reported that the α2-6 sialylation of TNFR1 by the tumor-associated sialyltransferase ST6GAL1 diverts signaling toward survival by inhibiting TNFR1 internalization. In the current investigation, we interrogated the mechanisms underlying sialylation-dependent regulation of TNFR1 and uncovered a novel role for α2-6 sialylation, but not α2-3 sialylation, in mediating apoptosis-resistance. Our studies utilized HEK293 cells with deletion of sialyltransferases that modify N-glycans with either α2-3-linked sialic acids (ST3GAL3/4/6) or α2-6-linked sialic acids (ST6GAL1/2). Additionally, ST6GAL1 was re-expressed in cells with ST6GAL1/2 deletion to restore α2-6 sialylation. Using total internal reflection fluorescence (TIRF) microscopy and BS3 cross-linking, we determined that, under basal conditions, cells expressing TNFR1 devoid of α2-6 sialylation displayed enhanced TNFR1 oligomerization, an event that poises cells for activation by TNF. Moreover, upon stimulation with TNF, greater internalization of TNFR1 was observed via time-lapse TIRF and flow cytometry, and this correlated with increased caspase-dependent apoptosis. These effects were reversed by ST6GAL1 re-expression. Conversely, eliminating α2-3 sialylation did not significantly alter TNFR1 clustering, internalization or apoptosis. We also evaluated the Fas receptor, given its structural similarity to TNFR1. As with TNFR1, α2-6 sialylation had a selective effect in protecting cells against Fas-mediated apoptosis. These results collectively suggest that ST6GAL1 may serve a unique function in shielding cancer cells from apoptotic stimuli within the tumor microenvironment.
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Affiliation(s)
- Jihye Hwang
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Tejeshwar C Rao
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Jiahui Tao
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Bingdong Sha
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Yoshiki Narimatsu
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Henrik Clausen
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Alexa L Mattheyses
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA.
| | - Susan L Bellis
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA.
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5
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Yao Z, Lu Y, Wang P, Chen Z, Zhou L, Sang X, Yang Q, Wang K, Hao M, Cao G. The role of JNK signaling pathway in organ fibrosis. J Adv Res 2024:S2090-1232(24)00431-4. [PMID: 39366483 DOI: 10.1016/j.jare.2024.09.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2024] [Revised: 09/28/2024] [Accepted: 09/29/2024] [Indexed: 10/06/2024] Open
Abstract
BACKGROUND Fibrosis is a tissue damage repair response caused by multiple pathogenic factors which could occur in almost every apparatus and leading to the tissue structure damage, physiological abnormality, and even organ failure until death. Up to now, there is still no specific drugs or strategies can effectively block or changeover tissue fibrosis. JNKs, a subset of mitogen-activated protein kinases (MAPK), have been reported that participates in various biological processes, such as genetic expression, DNA damage, and cell activation/proliferation/death pathways. Increasing studies indicated that abnormal regulation of JNK signal pathway has strongly associated with tissue fibrosis. AIM OF REVIEW This review designed to sum up the molecular mechanism progresses in the role of JNK signal pathway in organ fibrosis, hoping to provide a novel therapy strategy to tackle tissue fibrosis. KEY SCIENTIFIC CONCEPTS OF REVIEW Recent evidence shows that JNK signaling pathway could modulates inflammation, immunoreaction, oxidative stress and Multiple cell biological functions in organ fibrosis. Therefore, targeting the JNK pathway may be a useful strategy in cure fibrosis.
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Affiliation(s)
- Zhouhui Yao
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Yandan Lu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Pingping Wang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Ziyan Chen
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Licheng Zhou
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Xianan Sang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Qiao Yang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Kuilong Wang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Min Hao
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China; Songyang Research Institute of Zhejiang Chinese Medical University, Songyang, 323400, China.
| | - Gang Cao
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China.
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Bartels N, van der Voort NTM, Opanasyuk O, Felekyan S, Greife A, Shang X, Bister A, Wiek C, Seidel CAM, Monzel C. Advanced multiparametric image spectroscopy and super-resolution microscopy reveal a minimal model of CD95 signal initiation. SCIENCE ADVANCES 2024; 10:eadn3238. [PMID: 39213362 PMCID: PMC11809610 DOI: 10.1126/sciadv.adn3238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 07/26/2024] [Indexed: 09/04/2024]
Abstract
Unraveling the concentration-dependent spatiotemporal organization of receptors in the plasma membrane is crucial to understand cell signal initiation. A paradigm of this process is the oligomerization of CD95 during apoptosis signaling, with different oligomerization models being discussed. Here, we establish the molecular-sensitive approach cell lifetime Förster resonance energy transfer image spectroscopy to determine CD95 configurations in live cells. These data are corroborated by stimulated emission depletion microscopy, confocal photobleaching step analysis, and fluorescence correlation spectroscopy. We probed CD95 interactions for concentrations of ~10 to 1000 molecules per square micrometer, over nanoseconds to hours, and molecular to cellular scales. Quantitative benchmarking was achieved establishing high-fidelity monomer and dimer controls. While CD95 alone is primarily monomeric (~96%) and dimeric (4%), the addition of ligand induces oligomerization to dimers/trimers (~15%) leading to cell death. This study highlights molecular concentration effects and oligomerization dynamics. It reveals a minimal model, where small CD95 oligomers suffice to efficiently initiate signaling.
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Affiliation(s)
- Nina Bartels
- Experimental Medical Physics, Heinrich-Heine University, Düsseldorf, Germany
| | | | - Oleg Opanasyuk
- Molecular Physical Chemistry, Heinrich-Heine University, Düsseldorf, Germany
| | - Suren Felekyan
- Molecular Physical Chemistry, Heinrich-Heine University, Düsseldorf, Germany
| | - Annemarie Greife
- Molecular Physical Chemistry, Heinrich-Heine University, Düsseldorf, Germany
| | - Xiaoyue Shang
- Experimental Medical Physics, Heinrich-Heine University, Düsseldorf, Germany
| | - Arthur Bister
- Department of Otorhinolaryngology, Head & Neck Surgery, Heinrich-Heine University, Düsseldorf, Germany
| | - Constanze Wiek
- Department of Otorhinolaryngology, Head & Neck Surgery, Heinrich-Heine University, Düsseldorf, Germany
| | - Claus A. M. Seidel
- Molecular Physical Chemistry, Heinrich-Heine University, Düsseldorf, Germany
| | - Cornelia Monzel
- Experimental Medical Physics, Heinrich-Heine University, Düsseldorf, Germany
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7
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Zhao Y, Li Y, He J, Li M, Yao X, Yang H, Luo Z, Luo P, Su M. Nanointegrative Glycoengineering-Activated Necroptosis of Triple Negative Breast Cancer Stem Cells Enables Self-Amplifiable Immunotherapy for Systemic Tumor Rejection. Adv Healthc Mater 2024; 13:e2303337. [PMID: 38154036 DOI: 10.1002/adhm.202303337] [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: 10/03/2023] [Revised: 12/26/2023] [Indexed: 12/30/2023]
Abstract
Triple-negative breast cancer stem cells (TCSCs) are considered as the origin of recurrence and relapse. It is difficult to kill not only for its resistance, but also the lacking of targetable molecules on membrane. Here, it is confirmed that ST6 β-galactoside alpha-2,6-sialyltransferase 1 (ST6Gal-1) is highly expressed in TCSCs that may be the key enzyme involved in glycoengineering via sialic acid (SA) metabolism. SA co-localizes with a microdomain on cell membrane termed as lipid rafts that enrich CSCs marker and necroptosis proteins mixed lineage kinase domain-like protein (MLKL), suggesting that TCSCs may be sensitive to necroptosis. Thus, the triacetylated N-azidoacetyl-d-mannosamine (Ac3ManNAz) is synthesized as the glycoengineering substrate and applied to introduce artificial azido receptors, dibenzocyclooctyne (DBCO)-modified liposome is used to deliver Compound 6i (C6), a receptor-interacting serine/threonine protein kinase 1(RIPL1)-RIP3K-mixed lineage kinase domain-like protein(MLKL) activator, to induce necroptosis. The pro-necroptosis effect is aggravated by nitric oxide (NO), which is released from NO-depot of cholesterol-NO integrated in DBCO-PEG-liposome@NO/C6 (DLip@NO/C6). Together with the immunogenicity of necroptosis that releases high mobility group box 1(HMGB1) of damage-associated molecular patterns, TCSCs are significantly killed in vitro and in vivo. The results suggest a promising strategy to improve the therapeutic effect on the non-targetable TCSCs with high expression of ST6Gal-1 via combination of glycoengineering and necroptosis induction.
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Affiliation(s)
- Youbo Zhao
- Center for Tissue Engineering and Stem Cell Research, Key Laboratory for Autoimmune Disease Research of Guizhou Province Education Department. School of Basic Medicine, Guizhou Medical University, Guiyang, 550025, P. R. China
| | - Yanan Li
- School of Life Science, Chongqing University, Chongqing, 400044, P. R. China
| | - Jing He
- Translational Medicine Research Center, Guizhou Medical University, Guiyang, Guizhou, 550025, P. R. China
| | - Menghuan Li
- School of Life Science, Chongqing University, Chongqing, 400044, P. R. China
| | - Xuemei Yao
- School of Life Science, Chongqing University, Chongqing, 400044, P. R. China
| | - Huocheng Yang
- School of Life Science, Chongqing University, Chongqing, 400044, P. R. China
| | - Zhong Luo
- School of Life Science, Chongqing University, Chongqing, 400044, P. R. China
| | - Peng Luo
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control of Ministry of Education, Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, School of Public Health, Guizhou Medical University, Guiyang, Guizhou, 550025, P. R. China
| | - Min Su
- Center for Tissue Engineering and Stem Cell Research, Key Laboratory for Autoimmune Disease Research of Guizhou Province Education Department. School of Basic Medicine, Guizhou Medical University, Guiyang, 550025, P. R. China
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8
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Preedy MK, White MRH, Tergaonkar V. Cellular heterogeneity in TNF/TNFR1 signalling: live cell imaging of cell fate decisions in single cells. Cell Death Dis 2024; 15:202. [PMID: 38467621 PMCID: PMC10928192 DOI: 10.1038/s41419-024-06559-z] [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: 09/29/2023] [Revised: 02/07/2024] [Accepted: 02/13/2024] [Indexed: 03/13/2024]
Abstract
Cellular responses to TNF are inherently heterogeneous within an isogenic cell population and across different cell types. TNF promotes cell survival by activating pro-inflammatory NF-κB and MAPK signalling pathways but may also trigger apoptosis and necroptosis. Following TNF stimulation, the fate of individual cells is governed by the balance of pro-survival and pro-apoptotic signalling pathways. To elucidate the molecular mechanisms driving heterogenous responses to TNF, quantifying TNF/TNFR1 signalling at the single-cell level is crucial. Fluorescence live-cell imaging techniques offer real-time, dynamic insights into molecular processes in single cells, allowing for detection of rapid and transient changes, as well as identification of subpopulations, that are likely to be missed with traditional endpoint assays. Whilst fluorescence live-cell imaging has been employed extensively to investigate TNF-induced inflammation and TNF-induced cell death, it has been underutilised in studying the role of TNF/TNFR1 signalling pathway crosstalk in guiding cell-fate decisions in single cells. Here, we outline the various opportunities for pathway crosstalk during TNF/TNFR1 signalling and how these interactions may govern heterogenous responses to TNF. We also advocate for the use of live-cell imaging techniques to elucidate the molecular processes driving cell-to-cell variability in single cells. Understanding and overcoming cellular heterogeneity in response to TNF and modulators of the TNF/TNFR1 signalling pathway could lead to the development of targeted therapies for various diseases associated with aberrant TNF/TNFR1 signalling, such as rheumatoid arthritis, metabolic syndrome, and cancer.
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Affiliation(s)
- Marcus K Preedy
- Laboratory of NF-κB Signalling, Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore, 138673, Singapore
- Division of Molecular and Cellular Function, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Michael Smith Building, D3308, Dover Street, Manchester, M13 9PT, England, UK
| | - Michael R H White
- Division of Molecular and Cellular Function, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Michael Smith Building, D3308, Dover Street, Manchester, M13 9PT, England, UK.
| | - Vinay Tergaonkar
- Laboratory of NF-κB Signalling, Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore, 138673, Singapore.
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore (NUS), 8 Medical Drive, MD7, Singapore, 117596, Singapore.
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9
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Sit WY, Cheng ML, Chen TJ, Chen CJ, Chen BN, Huang DJ, Chen PL, Chen YC, Lo CJ, Wu DC, Hsieh WC, Chang CT, Chen RH, Wang WC. Helicobacter pylori PldA modulates TNFR1-mediated p38 signaling pathways to regulate macrophage responses for its survival. Gut Microbes 2024; 16:2409924. [PMID: 39369445 PMCID: PMC11457642 DOI: 10.1080/19490976.2024.2409924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 08/16/2024] [Accepted: 09/11/2024] [Indexed: 10/08/2024] Open
Abstract
Helicobacter pylori, a dominant member of the gastric microbiota was associated with various gastrointestinal diseases and presents a significant challenge due to increasing antibiotic resistance. This study identifies H. pylori's phospholipase A (PldA) as a critical factor in modulating host macrophage responses, facilitating H. pylori 's evasion of the immune system and persistence. PldA alters membrane lipids through reversible acylation and deacylation, affecting their structure and function. We found that PldA incorporates lysophosphatidylethanolamine into macrophage membranes, disrupting their bilayer structure and impairing TNFR1-mediated p38-MK2 signaling. This disruption results in reduced macrophage autophagy and elevated RIP1-dependent apoptosis, thereby enhancing H. pylori survival, a mechanism also observed in multidrug-resistant strains. Pharmacological inhibition of PldA significantly decreases H. pylori viability and increases macrophage survival. In vivo studies corroborate PldA's essential role in H. pylori persistence and immune cell recruitment. Our findings position PldA as a pivotal element in H. pylori pathogenesis through TNFR1-mediated membrane modulation, offering a promising therapeutic target to counteract bacterial resistance.
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Affiliation(s)
- Wei Yang Sit
- Institute of Molecular and Cellular Biology & Department of Life Science, National Tsing Hua University, Hsinchu, Taiwan, ROC
| | - Mei-Ling Cheng
- Department of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan, ROC
| | - Tsan-Jan Chen
- Institute of Molecular and Cellular Biology & Department of Life Science, National Tsing Hua University, Hsinchu, Taiwan, ROC
| | - Chia-Jo Chen
- Institute of Molecular and Cellular Biology & Department of Life Science, National Tsing Hua University, Hsinchu, Taiwan, ROC
| | - Bo-Nian Chen
- Institute of Molecular and Cellular Biology & Department of Life Science, National Tsing Hua University, Hsinchu, Taiwan, ROC
| | - Ding-Jun Huang
- Institute of Molecular and Cellular Biology & Department of Life Science, National Tsing Hua University, Hsinchu, Taiwan, ROC
| | - Pei-Lien Chen
- Institute of Molecular and Cellular Biology & Department of Life Science, National Tsing Hua University, Hsinchu, Taiwan, ROC
| | - Yun-Ching Chen
- Institute of Biomedical Engineering, National Tsing-Hua University, Hsinchu, Taiwan, ROC
| | - Chi-Jen Lo
- Department of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan, ROC
| | - Deng-Chyang Wu
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan, ROC
| | - Wan-Chen Hsieh
- Institute of Molecular and Cellular Biology & Department of Life Science, National Tsing Hua University, Hsinchu, Taiwan, ROC
| | - Chung-Ting Chang
- Institute of Molecular and Cellular Biology & Department of Life Science, National Tsing Hua University, Hsinchu, Taiwan, ROC
| | - Ruey-Hwa Chen
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan, ROC
| | - Wen-Ching Wang
- Institute of Molecular and Cellular Biology & Department of Life Science, National Tsing Hua University, Hsinchu, Taiwan, ROC
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10
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Suo F, Zhou X, Setroikromo R, Quax WJ. Receptor Specificity Engineering of TNF Superfamily Ligands. Pharmaceutics 2022; 14:181. [PMID: 35057080 PMCID: PMC8781899 DOI: 10.3390/pharmaceutics14010181] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/21/2021] [Accepted: 01/06/2022] [Indexed: 12/14/2022] Open
Abstract
The tumor necrosis factor (TNF) ligand family has nine ligands that show promiscuity in binding multiple receptors. As different receptors transduce into diverse pathways, the study on the functional role of natural ligands is very complex. In this review, we discuss the TNF ligands engineering for receptor specificity and summarize the performance of the ligand variants in vivo and in vitro. Those variants have an increased binding affinity to specific receptors to enhance the cell signal conduction and have reduced side effects due to a lowered binding to untargeted receptors. Refining receptor specificity is a promising research strategy for improving the application of multi-receptor ligands. Further, the settled variants also provide experimental guidance for engineering receptor specificity on other proteins with multiple receptors.
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Affiliation(s)
- Fengzhi Suo
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Xinyu Zhou
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Rita Setroikromo
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Wim J Quax
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
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11
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Hight-Warburton W, Felix R, Burton A, Maple H, Chegkazi MS, Steiner RA, McGrath JA, Parsons M. α4/α9 Integrins Coordinate Epithelial Cell Migration Through Local Suppression of MAP Kinase Signaling Pathways. Front Cell Dev Biol 2021; 9:750771. [PMID: 34900996 PMCID: PMC8655878 DOI: 10.3389/fcell.2021.750771] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 10/31/2021] [Indexed: 11/18/2022] Open
Abstract
Adhesion of basal keratinocytes to the underlying extracellular matrix (ECM) plays a key role in the control of skin homeostasis and response to injury. Integrin receptors indirectly link the ECM to the cell cytoskeleton through large protein complexes called focal adhesions (FA). FA also function as intracellular biochemical signaling platforms to enable cells to respond to changing extracellular cues. The α4β1 and α9β1 integrins are both expressed in basal keratinocytes, share some common ECM ligands, and have been shown to promote wound healing in vitro and in vivo. However, their roles in maintaining epidermal homeostasis and relative contributions to pathological processes in the skin remain unclear. We found that α4β1 and α9β1 occupied distinct regions in monolayers of a basal keratinocyte cell line (NEB-1). During collective cell migration (CCM), α4 and α9 integrins co-localized along the leading edge. Pharmacological inhibition of α4β1 and α9β1 integrins increased keratinocyte proliferation and induced a dramatic change in cytoskeletal remodeling and FA rearrangement, detrimentally affecting CCM. Further analysis revealed that α4β1/α9β1 integrins suppress extracellular signal-regulated kinase (ERK1/2) activity to control migration through the regulation of downstream kinases including Mitogen and Stress Activated Kinase 1 (MSK1). This work demonstrates the roles of α4β1 and α9β1 in regulating migration in response to damage cues.
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Affiliation(s)
- Willow Hight-Warburton
- Parsons Group, Randall Centre for Cell and Molecular Biophysics, King's College London, London, United Kingdom
| | | | | | | | - Magda S Chegkazi
- Steiner Group, Randall Centre for Cell and Molecular Biophysics, King's College London, London, United Kingdom
| | - Roberto A Steiner
- Steiner Group, Randall Centre for Cell and Molecular Biophysics, King's College London, London, United Kingdom.,Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - John A McGrath
- St Johns Institute of Dermatology, King's College London, London, United Kingdom
| | - Maddy Parsons
- Parsons Group, Randall Centre for Cell and Molecular Biophysics, King's College London, London, United Kingdom
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12
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Kulbay M, Paimboeuf A, Ozdemir D, Bernier J. Review of cancer cell resistance mechanisms to apoptosis and actual targeted therapies. J Cell Biochem 2021; 123:1736-1761. [PMID: 34791699 DOI: 10.1002/jcb.30173] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 10/04/2021] [Accepted: 10/22/2021] [Indexed: 11/11/2022]
Abstract
The apoptosis pathway is a programmed cell death mechanism that is crucial for cellular and tissue homeostasis and organ development. There are three major caspase-dependent pathways of apoptosis that ultimately lead to DNA fragmentation. Cancerous cells are known to highly regulate the apoptotic pathway and its role in cancer hallmark acquisition has been discussed over the past decades. Numerous mutations in cancer cell types have been reported to be implicated in chemoresistance and treatment outcome. In this review, we summarize the mutations of the caspase-dependant apoptotic pathways that are the source of cancer development and the targeted therapies currently available or in trial.
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Affiliation(s)
- Merve Kulbay
- INRS - Centre Armand-Frappier Santé Biotechnologie, Laval, Quebec, Canada.,Department of Medicine, Université de Montréal, Montréal, Quebec, Canada
| | - Adeline Paimboeuf
- INRS - Centre Armand-Frappier Santé Biotechnologie, Laval, Quebec, Canada
| | - Derman Ozdemir
- Department of Medicine, One Brooklyn Health-Brookdale Hospital Medical Center, Brooklyn, New York, USA
| | - Jacques Bernier
- INRS - Centre Armand-Frappier Santé Biotechnologie, Laval, Quebec, Canada
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13
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Li X, Kang J, Lv H, Liu R, Chen J, Zhang Y, Zhang Y, Yu G, Zhang X, Ning B. CircPrkcsh, a circular RNA, contributes to the polarization of microglia towards the M1 phenotype induced by spinal cord injury and acts via the JNK/p38 MAPK pathway. FASEB J 2021; 35:e22014. [PMID: 34751973 DOI: 10.1096/fj.202100993r] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 09/27/2021] [Accepted: 10/11/2021] [Indexed: 01/22/2023]
Abstract
Spinal cord injury (SCI) is a complex pathological change that includes primary SCI and gradually evolves into secondary SCI. Accumulating evidence demonstrates that circular RNAs (circRNAs) are involved in the pathology of a variety of neurological diseases and injuries. However, the characteristics and function of circRNAs in SCI have yet to be elucidated. Although previous research demonstrated that circPrkcsh induces astrocytes to produce inflammatory factors and chemokines, the precise function and mechanism of circPrkcsh in microglia after SCI remains unknown. In this study, we constructed a mouse model of SCI by applying a SCI impactor. Quantitative Real-time PCR and Fluorescence in situ hybridization analysis revealed that circPrkcsh was upregulated in the microglia of SCI mice when compared to sham-operated mice. Gain- or loss-of-function experiments and in vivo assays further indicated that circPrkcsh promotes microglia M1 polarization both in vivo and in vitro. Furthermore, bioinformatics analysis, dual-luciferase assays, and RNA immunoprecipitation assays, confirmed that circPrkcsh serves as a competing endogenous RNA (ceRNA) to promote the expression of MEKK1 mRNA by sponging miR-488. Double knockout rescue experiments further showed that circPrkcsh regulates the MEKK1/JNK/p38 MAPK pathway via miR-488. Our research provides a better understanding of the mechanism of circPrkcsh in SCI and demonstrates that the circPrkcsh/miR-488/Mekk1 axis is a promising regulatory method for the treatment of SCI.
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Affiliation(s)
- Xinyu Li
- Cheeloo College of Medicine, Jinan Central Hospital, Shandong University, Jinan, China
| | - Jianning Kang
- Cheeloo College of Medicine, Jinan Central Hospital, Shandong University, Jinan, China
| | - Hong Lv
- Cheeloo College of Medicine, Jinan Central Hospital, Shandong University, Jinan, China
| | - Ronghan Liu
- Cheeloo College of Medicine, Jinan Central Hospital, Shandong University, Jinan, China
| | - Jianan Chen
- Cheeloo College of Medicine, Jinan Central Hospital, Shandong University, Jinan, China
| | - Yining Zhang
- Cheeloo College of Medicine, Jinan Central Hospital, Shandong University, Jinan, China
| | - Ying Zhang
- Cheeloo College of Medicine, Jinan Central Hospital, Shandong University, Jinan, China
| | - Guilian Yu
- Cheeloo College of Medicine, Jinan Central Hospital, Shandong University, Jinan, China
| | - Xiaodi Zhang
- Cheeloo College of Medicine, Jinan Central Hospital, Shandong University, Jinan, China
| | - Bin Ning
- Cheeloo College of Medicine, Jinan Central Hospital, Shandong University, Jinan, China
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14
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Lu S, Wang Y, Liu J. TNF-α signaling in non-alcoholic steatohepatitis and targeted therapies. J Genet Genomics 2021; 49:269-278. [PMID: 34757037 DOI: 10.1016/j.jgg.2021.09.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/07/2021] [Accepted: 09/29/2021] [Indexed: 02/06/2023]
Abstract
Nonalcoholic steatohepatitis (NASH), an inflammatory subtype of nonalcoholic fatty liver disease (NAFLD), is featured by significantly elevated levels of various pro-inflammatory cytokines. Among numerous pro-inflammatory factors that contribute to NASH pathogenesis, the secreted protein, tumor necrosis factor-alpha (TNF-α) plays an essential role in multiple facets of NASH progression and is therefore considered as a potential therapeutic target. In this review, we will first systematically describe the preclinical studies on the biochemical function of TNF-α and its intracellular downstream signaling mechanisms through its receptors. Moreover, we extensively discuss its functions in regulating inflammation, cell death, and fibrosis of liver cells in the pathogenesis of NASH, and the molecular mechanism that TNF-α expression was regulated by NF-κB and other upstream master regulators during NASH progression. As TNF-α is one of the causal factors that remarkably contributes to NASH progression, combination of therapeutic modalities, including TNF-α-based therapies may lead to resolution of NASH via multiple pathways and thus generate clinical benefits. For translational studies, we summarize recent advances in strategies targeting TNF-α and its signaling pathway, which paves the way for potential therapeutic treatments for NASH in future.
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Affiliation(s)
- Sijia Lu
- Shanghai Diabetes Institute, Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Yibing Wang
- School of Kinesiology, Shanghai University of Sports, Shanghai 200438, China.
| | - Junli Liu
- Shanghai Diabetes Institute, Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China.
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15
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Albogami S, Todd I, Negm O, Fairclough LC, Tighe PJ. Mutations in the binding site of TNFR1 PLAD reduce homologous interactions but can enhance antagonism of wild-type TNFR1 activity. Immunology 2021; 164:637-654. [PMID: 34363702 DOI: 10.1111/imm.13400] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 07/05/2021] [Accepted: 07/12/2021] [Indexed: 11/29/2022] Open
Abstract
The tumour necrosis factor receptor superfamily (TNFRSF) members contain cysteine-rich domains (CRD) in their extracellular regions, and the membrane-distal CRD1 forms homologous interactions in the absence of ligand. The CRD1 is therefore termed a pre-ligand assembly domain (PLAD). The role of PLAD-PLAD interactions in the induction of signalling as a consequence of TNF-TNFR binding led to the development of soluble PLAD domains as antagonists of TNFR activation. In the present study, we generated recombinant wild-type (WT) PLAD of TNFR1 and mutant forms with single alanine substitutions of amino acid residues thought to be critical for the formation of homologous dimers and/or trimers of PLAD (K19A, T31A, D49A and D52A). These mutated PLADs were compared with WT PLAD as antagonists of TNF-induced apoptosis or the activation of inflammatory signalling pathways. Unlike WT PLAD, the mutated PLADs showed little or no homologous interactions, confirming the importance of particular amino acids as contact residues in the PLAD binding region. However, as with WT PLAD, the mutated PLADs functioned as antagonists of TNF-induced TNFR1 activity leading to induction of cell death or NF-κB signalling. Indeed, some of the mutant PLADs, and K19A PLAD in particular, showed enhanced antagonistic activity compared with WT PLAD. This is consistent with the reduced formation of homologous multimers by these PLAD mutants effectively increasing the concentration of PLAD available to bind and antagonize WT TNFR1 when compared to WT PLAD acting as an antagonist. This may have implications for the development of antagonistic PLADs as therapeutic agents.
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Affiliation(s)
- Sarah Albogami
- School of Life Sciences, University of Nottingham, Nottingham, UK.,Department of Biotechnology, School of Science, Taif University, Taif, Saudi Arabia
| | - Ian Todd
- School of Life Sciences, University of Nottingham, Nottingham, UK
| | - Ola Negm
- School of Life Sciences, University of Nottingham, Nottingham, UK.,Microbiology and Immunology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | | | - Patrick J Tighe
- School of Life Sciences, University of Nottingham, Nottingham, UK
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16
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Li M, Yan Y, Zhang X, Zhang Y, Xu X, Zhang L, Lu L, Wang J, Zhang Y, Song Q, Zhao C. Scaffold compound L971 exhibits anti-inflammatory activities through inhibition of JAK/STAT and NFκB signalling pathways. J Cell Mol Med 2021; 25:6333-6347. [PMID: 34018320 PMCID: PMC8256347 DOI: 10.1111/jcmm.16609] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 04/22/2021] [Accepted: 04/26/2021] [Indexed: 12/17/2022] Open
Abstract
JAK/STAT and NFκB signalling pathways play essential roles in regulating inflammatory responses, which are important pathogenic factors of various serious immune-related diseases, and function individually or synergistically. To find prodrugs that can treat inflammation, we performed a preliminary high-throughput screening of 18 840 small molecular compounds and identified scaffold compound L971 which significantly inhibited JAK/STAT and NFκB driven luciferase activities. L971 could inhibit the constitutive and stimuli-dependent activation of STAT1, STAT3 and IκBα and could significantly down-regulate the proinflammatory gene expression in mouse peritoneal macrophages stimulated by LPS. Gene expression profiles upon L971 treatment were determined using high-throughput RNA sequencing, and significant differentially up-regulated and down-regulated genes were identified by DESeq analysis. The bioinformatic studies confirmed the anti-inflammatory effects of L971. Finally, L971 anti-inflammatory character was further verified in LPS-induced sepsis shock mouse model in vivo. Taken together, these data indicated that L971 could down-regulate both JAK/STAT and NFκB signalling activities and has the potential to treat inflammatory diseases such as sepsis shock.
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Affiliation(s)
- Mengyuan Li
- School of Medicine and PharmacyOcean University of ChinaQingdaoChina
| | - Yu Yan
- School of Medicine and PharmacyOcean University of ChinaQingdaoChina
| | - Xinxin Zhang
- Innovation Platform of Marine Drug Screening & EvaluationQingdao National Laboratory for Marine Science and TechnologyQingdaoChina
| | - Yidan Zhang
- School of Medicine and PharmacyOcean University of ChinaQingdaoChina
| | - Xiaohan Xu
- School of Medicine and PharmacyOcean University of ChinaQingdaoChina
| | - Lei Zhang
- School of Medicine and PharmacyOcean University of ChinaQingdaoChina
| | - Liangliang Lu
- School of Life ScienceLanzhou UniversityLanzhouChina
| | - Jie Wang
- School of Medicine and PharmacyOcean University of ChinaQingdaoChina
| | - Yazhuo Zhang
- School of Medicine and PharmacyOcean University of ChinaQingdaoChina
| | - Qiaoling Song
- School of Medicine and PharmacyOcean University of ChinaQingdaoChina
- Innovation Platform of Marine Drug Screening & EvaluationQingdao National Laboratory for Marine Science and TechnologyQingdaoChina
| | - Chenyang Zhao
- School of Medicine and PharmacyOcean University of ChinaQingdaoChina
- Innovation Platform of Marine Drug Screening & EvaluationQingdao National Laboratory for Marine Science and TechnologyQingdaoChina
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17
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Yu X, James S, Felce JH, Kellermayer B, Johnston DA, Chan HTC, Penfold CA, Kim J, Inzhelevskaya T, Mockridge CI, Watanabe Y, Crispin M, French RR, Duriez PJ, Douglas LR, Glennie MJ, Cragg MS. TNF receptor agonists induce distinct receptor clusters to mediate differential agonistic activity. Commun Biol 2021; 4:772. [PMID: 34162985 PMCID: PMC8222242 DOI: 10.1038/s42003-021-02309-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 06/04/2021] [Indexed: 02/05/2023] Open
Abstract
Monoclonal antibodies (mAb) and natural ligands targeting costimulatory tumor necrosis factor receptors (TNFR) exhibit a wide range of agonistic activities and antitumor responses. The mechanisms underlying these differential agonistic activities remain poorly understood. Here, we employ a panel of experimental and clinically-relevant molecules targeting human CD40, 4-1BB and OX40 to examine this issue. Confocal and STORM microscopy reveal that strongly agonistic reagents induce clusters characterized by small area and high receptor density. Using antibody pairs differing only in isotype we show that hIgG2 confers significantly more receptor clustering than hIgG1 across all three receptors, explaining its greater agonistic activity, with receptor clustering shielding the receptor-agonist complex from further molecular access. Nevertheless, discrete receptor clustering patterns are observed with different hIgG2 mAb, with a unique rod-shaped assembly observed with the most agonistic mAb. These findings dispel the notion that larger receptor clusters elicit greater agonism, and instead point to receptor density and subsequent super-structure as key determinants.
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Affiliation(s)
- Xiaojie Yu
- Antibody and Vaccine Group, School of Cancer Sciences, University of Southampton Faculty of Medicine, Southampton, UK.
| | - Sonya James
- Antibody and Vaccine Group, School of Cancer Sciences, University of Southampton Faculty of Medicine, Southampton, UK
| | | | | | - David A Johnston
- Biomedical Imaging Unit, University of Southampton Faculty of Medicine, Southampton, UK
| | - H T Claude Chan
- Antibody and Vaccine Group, School of Cancer Sciences, University of Southampton Faculty of Medicine, Southampton, UK
| | - Christine A Penfold
- Antibody and Vaccine Group, School of Cancer Sciences, University of Southampton Faculty of Medicine, Southampton, UK
| | - Jinny Kim
- Antibody and Vaccine Group, School of Cancer Sciences, University of Southampton Faculty of Medicine, Southampton, UK
| | - Tatyana Inzhelevskaya
- Antibody and Vaccine Group, School of Cancer Sciences, University of Southampton Faculty of Medicine, Southampton, UK
| | - C Ian Mockridge
- Antibody and Vaccine Group, School of Cancer Sciences, University of Southampton Faculty of Medicine, Southampton, UK
| | - Yasunori Watanabe
- School of Biological Sciences, University of Southampton, Southampton, UK
| | - Max Crispin
- School of Biological Sciences, University of Southampton, Southampton, UK
| | - Ruth R French
- Antibody and Vaccine Group, School of Cancer Sciences, University of Southampton Faculty of Medicine, Southampton, UK
| | - Patrick J Duriez
- CRUK Protein Core Facility, University of Southampton Faculty of Medicine, Southampton, UK
| | - Leon R Douglas
- CRUK Protein Core Facility, University of Southampton Faculty of Medicine, Southampton, UK
| | - Martin J Glennie
- Antibody and Vaccine Group, School of Cancer Sciences, University of Southampton Faculty of Medicine, Southampton, UK
| | - Mark S Cragg
- Antibody and Vaccine Group, School of Cancer Sciences, University of Southampton Faculty of Medicine, Southampton, UK.
- Institute for Life Sciences, University of Southampton, Southampton, UK.
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18
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Gusarova GA, Das SR, Islam MN, Westphalen K, Jin G, Shmarakov IO, Li L, Bhattacharya S, Bhattacharya J. Actin fence therapy with exogenous V12Rac1 protects against acute lung injury. JCI Insight 2021; 6:135753. [PMID: 33749665 PMCID: PMC8026177 DOI: 10.1172/jci.insight.135753] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 02/11/2021] [Indexed: 02/05/2023] Open
Abstract
High mortality in acute lung injury (ALI) results from sustained proinflammatory signaling by alveolar receptors, such as TNF-α receptor type 1 (TNFR1). Factors that determine the sustained signaling are not known. Unexpectedly, optical imaging of live alveoli revealed a major TNF-α–induced surge of alveolar TNFR1 due to a Ca2+-dependent mechanism that decreased the cortical actin fence. Mouse mortality due to inhaled LPS was associated with cofilin activation, actin loss, and the TNFR1 surge. The constitutively active form of the GTPase, Rac1 (V12Rac1), given intranasally (i.n.) as a noncovalent construct with a cell-permeable peptide, enhanced alveolar filamentous actin (F-actin) and blocked the TNFR1 surge. V12Rac1 also protected against ALI-induced mortality resulting from i.n. instillation of LPS or of Pseudomonas aeruginosa. We propose a potentially new therapeutic paradigm in which actin enhancement by exogenous Rac1 strengthens the alveolar actin fence, protecting against proinflammatory receptor hyperexpression, and therefore blocking ALI.
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Affiliation(s)
- Galina A Gusarova
- Lung Biology Laboratory, Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Shonit R Das
- Lung Biology Laboratory, Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Mohammad N Islam
- Lung Biology Laboratory, Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Kristin Westphalen
- Lung Biology Laboratory, Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Guangchun Jin
- Lung Biology Laboratory, Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | | | - Li Li
- Lung Biology Laboratory, Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Sunita Bhattacharya
- Lung Biology Laboratory, Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine.,Department of Pediatrics, and
| | - Jahar Bhattacharya
- Lung Biology Laboratory, Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine.,Department of Physiology and Cellular Biophysics, Vagelos College of Physicians and Surgeons of Columbia University, New York, New York, USA
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19
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TNFR1-d2 carrying the p.(Thr79Met) pathogenic variant is a potential novel actor of TNFα/TNFR1 signalling regulation in the pathophysiology of TRAPS. Sci Rep 2021; 11:4172. [PMID: 33603056 PMCID: PMC7893027 DOI: 10.1038/s41598-021-83539-9] [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: 09/26/2019] [Accepted: 01/29/2021] [Indexed: 11/09/2022] Open
Abstract
Binding of tumour necrosis factor α (TNFα) to its receptor (TNFR1) is critical for both survival and death cellular pathways. TNFα/TNFR1 signalling is complex and tightly regulated at different levels to control cell fate decisions. Previously, we identified TNFR1-d2, an exon 2-spliced transcript of TNFRSF1A gene encoding TNFR1, whose splicing may be modulated by polymorphisms associated with inflammatory disorders. Here, we investigated the impact of TNFRSF1A variants involved in TNFR-associated periodic syndrome (TRAPS) on TNFR1-d2 protein expression and activity. We found that TNFR1-d2 could be translated by using an internal translation initiation codon and a de novo internal ribosome entry site (IRES), which resulted in a putative TNFR1 isoform lacking its N-terminal region. The kinetic of assembly of TNFR1-d2 clusters at the cell surface was reduced as compared with full-length TNFR1. Although co-localized with the full-length TNFR1, TNFR1-d2 neither activated nuclear factor (NF)-κB signalling, nor interfered with TNFR1-induced NF-κB activation. Translation of TNFR1-d2 carrying the severe p.(Thr79Met) pathogenic variant (also known as T50M) was initiated at the mutated codon, resulting in an elongated extracellular domain, increased speed to form preassembled clusters in absence of TNFα, and constitutive NF-κB activation. Overall, TNFR1-d2 might reflect the complexity of the TNFR1 signalling pathways and could be involved in TRAPS pathophysiology of patients carrying the p.(Thr79Met) disease-causing variant.
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20
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Samson AL, Garnish SE, Hildebrand JM, Murphy JM. Location, location, location: A compartmentalized view of TNF-induced necroptotic signaling. Sci Signal 2021; 14:14/668/eabc6178. [PMID: 33531383 DOI: 10.1126/scisignal.abc6178] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Necroptosis is a lytic, proinflammatory cell death pathway, which has been implicated in host defense and, when dysregulated, the pathology of many human diseases. The central mediators of this pathway are the receptor-interacting serine/threonine protein kinases RIPK1 and RIPK3 and the terminal executioner, the pseudokinase mixed lineage kinase domain-like (MLKL). Here, we review the chronology of signaling along the RIPK1-RIPK3-MLKL axis and highlight how the subcellular compartmentalization of signaling events controls the initiation and execution of necroptosis. We propose that a network of modulators surrounds the necroptotic signaling core and that this network, rather than acting universally, tunes necroptosis in a context-, cell type-, and species-dependent manner. Such a high degree of mechanistic flexibility is likely an important property that helps necroptosis operate as a robust, emergency form of cell death.
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Affiliation(s)
- André L Samson
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC 3052, Australia. .,Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia
| | - Sarah E Garnish
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC 3052, Australia.,Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia
| | - Joanne M Hildebrand
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC 3052, Australia.,Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia
| | - James M Murphy
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC 3052, Australia. .,Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia
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21
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Wong SW, Lenzini S, Cooper MH, Mooney DJ, Shin JW. Soft extracellular matrix enhances inflammatory activation of mesenchymal stromal cells to induce monocyte production and trafficking. SCIENCE ADVANCES 2020; 6:eaaw0158. [PMID: 32284989 PMCID: PMC7141831 DOI: 10.1126/sciadv.aaw0158] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 01/14/2020] [Indexed: 05/17/2023]
Abstract
Mesenchymal stromal cells (MSCs) modulate immune cells to ameliorate multiple inflammatory pathologies. Biophysical signals that regulate this process are poorly defined. By engineering hydrogels with tunable biophysical parameters relevant to bone marrow where MSCs naturally reside, we show that soft extracellular matrix maximizes the ability of MSCs to produce paracrine factors that have been implicated in monocyte production and chemotaxis upon inflammatory stimulation by tumor necrosis factor-α (TNFα). Soft matrix increases clustering of TNF receptors, thereby enhancing NF-κB activation and downstream gene expression. Actin polymerization and lipid rafts, but not myosin-II contractility, regulate mechanosensitive activation of MSCs by TNFα. We functionally demonstrate that human MSCs primed with TNFα in soft matrix enhance production of human monocytes in marrow of xenografted mice and increase trafficking of monocytes via CCL2. The results suggest the importance of biophysical signaling in tuning inflammatory activation of stromal cells to control the innate immune system.
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Affiliation(s)
- Sing Wan Wong
- Department of Pharmacology and Department of Bioengineering, University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| | - Stephen Lenzini
- Department of Pharmacology and Department of Bioengineering, University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| | - Madeline H. Cooper
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - David J. Mooney
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Jae-Won Shin
- Department of Pharmacology and Department of Bioengineering, University of Illinois at Chicago College of Medicine, Chicago, IL, USA
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