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Fazil MHUT, Chirumamilla CS, Perez-Novo C, Wong BHS, Kumar S, Sze SK, Vanden Berghe W, Verma NK. The steroidal lactone withaferin A impedes T-cell motility by inhibiting the kinase ZAP70 and subsequent kinome signaling. J Biol Chem 2021; 297:101377. [PMID: 34742736 PMCID: PMC8637146 DOI: 10.1016/j.jbc.2021.101377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 10/15/2021] [Accepted: 10/18/2021] [Indexed: 02/07/2023] Open
Abstract
The steroidal lactone withaferin A (WFA) is a dietary phytochemical, derived from Withania somnifera. It exhibits a wide range of biological properties, including immunomodulatory, anti-inflammatory, antistress, and anticancer activities. Here we investigated the effect of WFA on T-cell motility, which is crucial for adaptive immune responses as well as autoimmune reactions. We found that WFA dose-dependently (within the concentration range of 0.3–1.25 μM) inhibited the ability of human T-cells to migrate via cross-linking of the lymphocyte function-associated antigen-1 (LFA-1) integrin with its ligand, intercellular adhesion molecule 1 (ICAM-1). Coimmunoprecipitation of WFA interacting proteins and subsequent tandem mass spectrometry identified a WFA-interactome consisting of 273 proteins in motile T-cells. In particular, our data revealed significant enrichment of the zeta-chain-associated protein kinase 70 (ZAP70) and cytoskeletal actin protein interaction networks upon stimulation. Phospho-peptide mapping and kinome analysis substantiated kinase signaling downstream of ZAP70 as a key WFA target, which was further confirmed by bait-pulldown and Western immunoblotting assays. The WFA-ZAP70 interaction was disrupted by a disulfide reducing agent dithiothreitol, suggesting an involvement of cysteine covalent binding interface. In silico docking predicted WFA binding to ZAP70 at cystine 560 and 564 residues. These findings provide a mechanistic insight whereby WFA binds to and inhibits the ZAP70 kinase and impedes T-cell motility. We therefore conclude that WFA may be exploited to pharmacologically control host immune responses and potentially prevent autoimmune-mediated pathologies.
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Affiliation(s)
| | - Chandra Sekhar Chirumamilla
- Laboratory of Protein Chemistry, Proteomics and Epigenetic Signaling (PPES) and Integrated Personalized and Precision Oncology Network (IPPON), Department of Biomedical Sciences, University of Antwerp, Wilrijk, Belgium
| | - Claudina Perez-Novo
- Laboratory of Protein Chemistry, Proteomics and Epigenetic Signaling (PPES) and Integrated Personalized and Precision Oncology Network (IPPON), Department of Biomedical Sciences, University of Antwerp, Wilrijk, Belgium
| | - Brandon Han Siang Wong
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Clinical Sciences Building, Singapore; NTU Institute for Health Technologies (HealthTech NTU), Interdisciplinary Graduate Programme, Nanyang Technological University Singapore, Singapore
| | - Sunil Kumar
- Indian Council of Agricultural Research-National Bureau of Agriculturally Important Microorganisms, Kushmaur, Mau, Uttar Pradesh, India
| | - Siu Kwan Sze
- School of Biological Sciences, Nanyang Technological University Singapore, Singapore
| | - Wim Vanden Berghe
- Laboratory of Protein Chemistry, Proteomics and Epigenetic Signaling (PPES) and Integrated Personalized and Precision Oncology Network (IPPON), Department of Biomedical Sciences, University of Antwerp, Wilrijk, Belgium.
| | - Navin Kumar Verma
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Clinical Sciences Building, Singapore.
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Wang Y, Wang P, Xu J. Phosphorylation: A Fast Switch For Checkpoint Signaling. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1248:347-398. [PMID: 32185718 DOI: 10.1007/978-981-15-3266-5_15] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Checkpoint signaling involves a variety of upstream and downstream factors that participate in the regulation of checkpoint expression, activation, and degradation. During the process, phosphorylation plays a critical role. Phosphorylation is one of the most well-documented post-translational modifications of proteins. Of note, the importance of phosphorylation has been emphasized in aspects of cell activities, including proliferation, metabolism, and differentiation. Here we summarize how phosphorylation of specific molecules affects the immune activities with preference in tumor immunity. Of course, immune checkpoints are given extra attention in this book. There are many common pathways that are involved in signaling of different checkpoints. Some of them are integrated and presented as common activities in the early part of this chapter, especially those associated with PD-1/PD-L1 and CTLA-4, because investigations concerning them are particularly abundant and variant. Their distinct regulation is supplementarily discussed in their respective section. As for checkpoints that are so far not well explored, their related phosphorylation modulations are listed separately in the later part. We hope to provide a clear and systematic view of the phosphorylation-modulated immune signaling.
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Affiliation(s)
- Yiting Wang
- School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Ping Wang
- Shanghai Tenth People's Hospital of Tongji University, School of Medicine, School of Life Sciences and Technology, Tongji University Cancer Center, Tongji University, Shanghai, 200092, China
| | - Jie Xu
- Institutes of Biomedical Sciences, Zhongshan-Xuhui Hospital, Fudan University, Shanghai, 200032, China.
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Zaiss DM, Minutti CM, Knipper JA. Immune- and non-immune-mediated roles of regulatory T-cells during wound healing. Immunology 2019; 157:190-197. [PMID: 30866049 DOI: 10.1111/imm.13057] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Accepted: 01/29/2019] [Indexed: 12/16/2022] Open
Abstract
The immune system has a well-established contribution to tissue homeostasis and wound healing. However, in many cases immune responses themselves can cause severe tissue damage. Thus, the question arose to which extent cells of the immune system directly contribute to the process of wound healing and to which extent the resolution of excessive immune responses may indirectly contribute to wound healing. FoxP3-expressing CD4 T-cells, so-called regulatory T-cells (Tregs ), have an important contribution in the regulation of immune responses; and, in recent years, it has been suggested that Tregs next to an immune-regulatory, 'damage-limiting' function may also have an immune-independent 'damage-resolving' direct role in wound healing. In particular, the release of the epidermal growth factor-like growth factor Amphiregulin by tissue-resident Tregs during wound repair suggested such a function. Our recent findings have now revealed that Amphiregulin induces the local release of bio-active transforming growth factor (TGF)β, a cytokine involved both in immune regulation as well as in the process of wound repair. In light of these findings, we discuss whether, by locally activating TGFβ, Treg -derived Amphiregulin may contribute to both wound repair and immune suppression. Furthermore, we propose that Treg -derived Amphiregulin in an autocrine way may enable an IL-33-mediated survival and expansion of tissue-resident Tregs upon injury. Furthermore, Treg -derived Amphiregulin may contribute to a constitutive, low-level release of bio-active TGFβ within tissues, leading to continuous tissue regeneration and to an immune-suppressive environment, which may keep inflammation-prone tissues in an homeostatic state.
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Affiliation(s)
- Dietmar M Zaiss
- Institute of Immunology and Infection Research, University of Edinburgh, Edinburgh, UK
| | - Carlos M Minutti
- Institute of Immunology and Infection Research, University of Edinburgh, Edinburgh, UK.,Immunobiology Laboratory, The Francis Crick Institute, London, UK
| | - Johanna A Knipper
- Institute of Immunology and Infection Research, University of Edinburgh, Edinburgh, UK
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Seu L, Tidwell C, Timares L, Duverger A, Wagner FH, Goepfert PA, Westfall AO, Sabbaj S, Kutsch O. CD151 Expression Is Associated with a Hyperproliferative T Cell Phenotype. THE JOURNAL OF IMMUNOLOGY 2017; 199:3336-3347. [PMID: 28954890 DOI: 10.4049/jimmunol.1700648] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 08/28/2017] [Indexed: 02/06/2023]
Abstract
The tetraspanin CD151 is a marker of aggressive cell proliferation and invasiveness for a variety of cancer types. Given reports of CD151 expression on T cells, we explored whether CD151 would mark T cells in a hyperactivated state. Consistent with the idea that CD151 could mark a phenotypically distinct T cell subset, it was not uniformly expressed on T cells. CD151 expression frequency was a function of the T cell lineage (CD8 > CD4) and a function of the memory differentiation state (naive T cells < central memory T cells < effector memory T cells < T effector memory RA+ cells). CD151 and CD57, a senescence marker, defined the same CD28- T cell populations. However, CD151 also marked a substantial CD28+ T cell population that was not marked by CD57. Kinome array analysis demonstrated that CD28+CD151+ T cells form a subpopulation with a distinct molecular baseline and activation phenotype. Network analysis of these data revealed that cell cycle control and cell death were the most altered process motifs in CD28+CD151+ T cells. We demonstrate that CD151 in T cells is not a passive marker, but actively changed the cell cycle control and cell death process motifs of T cells. Consistent with these data, long-term T cell culture experiments in the presence of only IL-2 demonstrated that independent of their CD28 expression status, CD151+ T cells, but not CD151- T cells, would exhibit an Ag-independent, hyperresponsive proliferation phenotype. Not unlike its reported function as a tumor aggressiveness marker, CD151 in humans thus marks and enables hyperproliferative T cells.
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Affiliation(s)
- Lillian Seu
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Christopher Tidwell
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Laura Timares
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Alexandra Duverger
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Frederic H Wagner
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Paul A Goepfert
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Andrew O Westfall
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Steffanie Sabbaj
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Olaf Kutsch
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
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