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Nagata Y, Tomimori J, Hagiwara T. Anti-apoptotic protein Bcl-2 contributes to the determination of reserve cells during myogenic differentiation of C2C12 cells. In Vitro Cell Dev Biol Anim 2024:10.1007/s11626-024-00905-3. [PMID: 38619740 DOI: 10.1007/s11626-024-00905-3] [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: 01/27/2024] [Accepted: 03/28/2024] [Indexed: 04/16/2024]
Abstract
Skeletal muscle's regenerative ability is vital for maintaining muscle function, but chronic diseases like Duchenne muscular dystrophy can deplete this capacity. Muscle satellite cells, quiescent in normal situations, are activated during muscle injury, expressing myogenic regulatory factors, and producing myogenic progenitor cells. It was reported that muscle stem cells in primary culture and reserve cells in C2C12 cells express anti-apoptotic protein Bcl-2. Although the role of Bcl-2 expressed in myogenic cells has been thought to be to enhance cell viability, we hypothesized that Bcl-2 may promote the formation of reserve cells. The expression pattern analysis showed the expression of Bcl-2 in undifferentiated mononucleated cells, emphasizing its usefulness as a reserve cell marker and reminding us that cells expressing Bcl-2 have low proliferative potential. Silencing of Bcl-2 by transfection with siRNA decreased cell viability and the number of reserve cells, while overexpression of Bcl-2 not only increases cell viability but also inhibits muscle differentiation and proliferation. These results emphasize dual roles of Bcl-2 in protecting cells from apoptosis and contributing to reserve cell formation by regulating myoblast proliferation and/or differentiation. Overall, the study sheds light on the multifaceted role of Bcl-2 in the maintenance of skeletal muscle regeneration.
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Affiliation(s)
- Yosuke Nagata
- Department of Bioscience, Faculty of Life Science, Okayama University of Science, 1-1 Ridaicho, Kita-Ku, Okayama-Shi, 700-0005, Japan.
- Department of Life Science, Faculty of Science, Okayama University of Science, Okayama, Japan.
- Department of Natural Science, Graduate School of Science and Engineering, Okayama University of Science, Okayama, Japan.
| | - Jun Tomimori
- Department of Life Science, Faculty of Science, Okayama University of Science, Okayama, Japan
| | - Tomoharu Hagiwara
- Department of Natural Science, Graduate School of Science and Engineering, Okayama University of Science, Okayama, Japan
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2
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Zhang J, Li Y, Chen J, Huang T, Lin J, Pi Y, Hao H, Wang D, Liang X, Fu S, Yu J. TOB1 modulates neutrophil phenotypes to influence gastric cancer progression and immunotherapy efficacy. Front Immunol 2024; 15:1369087. [PMID: 38617839 PMCID: PMC11010640 DOI: 10.3389/fimmu.2024.1369087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 03/15/2024] [Indexed: 04/16/2024] Open
Abstract
Introduction The ErbB-2.1(TOB1) signaling transducer protein is a tumor-suppressive protein that actively suppresses the malignant phenotype of gastric cancer cells. Yet, TOB1 negatively regulates the activation and growth of different immune cells. Understanding the expression and role of TOB1 in the gastric cancer immune environment is crucial to maximize its potential in targeted immunotherapy. Methods This study employed multiplex immunofluorescence analysis to precisely delineate and quantify the expression of TOB1 in immune cells within gastric cancer tissue microarrays. Univariate and multivariate Cox analyses were performed to assess the influence of clinical-pathological parameters, immune cells, TOB1, and double-positive cells on the prognosis of gastric cancer patients. Subsequent experiments included co-culture assays of si-TOB1-transfected neutrophils with AGS or HGC-27 cells, along with EdU, invasion, migration assays, and bioinformatics analyses, aimed at elucidating the mechanisms through which TOB1 in neutrophils impacts the prognosis of gastric cancer patients. Results We remarkably revealed that TOB1 exhibits varying expression levels in both the nucleus (nTOB1) and cytoplasm (cTOB1) of diverse immune cell populations, including CD8+ T cells, CD66b+ neutrophils, FOXP3+ Tregs, CD20+ B cells, CD4+ T cells, and CD68+ macrophages within gastric cancer and paracancerous tissues. Significantly, TOB1 was notably concentrated in CD66b+ neutrophils. Survival analysis showed that a higher density of cTOB1/nTOB1+CD66b+ neutrophils was linked to a better prognosis. Subsequent experiments revealed that, following stimulation with the supernatant of tumor tissue culture, the levels of TOB1 protein and mRNA in neutrophils decreased, accompanied by enhanced apoptosis. HL-60 cells were successfully induced to neutrophil-like cells by DMSO. Neutrophils-like cells with attenuated TOB1 gene expression by si-TOB1 demonstrated heightened apoptosis, consequently fostering a malignant phenotype in AGS and HCG-27 cells upon co-cultivation. The subsequent analysis of the datasets from TCGA and TIMER2 revealed that patients with high levels of TOB1 combined neutrophils showed better immunotherapy response. Discussion This study significantly advances our comprehension of TOB1's role within the immune microenvironment of gastric cancer, offering promising therapeutic targets for immunotherapy in this context.
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Affiliation(s)
- Jinfeng Zhang
- Scientific Research Center, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Yunlong Li
- Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Jing Chen
- Department of Gastroenterology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Tongtong Huang
- Scientific Research Center, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Jing Lin
- Scientific Research Center, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Yilin Pi
- Department of Gastroenterology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Huiting Hao
- Department of Clinical Laboratory, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Dong Wang
- Scientific Research Center, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Xiao Liang
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Ministry of Education, Harbin, China
| | - Songbin Fu
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Ministry of Education, Harbin, China
| | - Jingcui Yu
- Scientific Research Center, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Ministry of Education, Harbin, China
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3
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Perez RC, Yang X, Familari M, Martinez G, Lovicu FJ, Hime GR, de Iongh RU. TOB1 and TOB2 mark distinct RNA processing granules in differentiating lens fiber cells. J Mol Histol 2024; 55:121-138. [PMID: 38165569 DOI: 10.1007/s10735-023-10177-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 11/12/2023] [Indexed: 01/04/2024]
Abstract
Differentiation of lens fiber cells involves a complex interplay of signals from growth factors together with tightly regulated gene expression via transcriptional and post-transcriptional regulators. Various studies have demonstrated that RNA-binding proteins, functioning in ribonucleoprotein granules, have important roles in regulating post-transcriptional expression during lens development. In this study, we examined the expression and localization of two members of the BTG/TOB family of RNA-binding proteins, TOB1 and TOB2, in the developing lens and examined the phenotype of mice that lack Tob1. By RT-PCR, both Tob1 and Tob2 mRNA were detected in epithelial and fiber cells of embryonic and postnatal murine lenses. In situ hybridization showed Tob1 and Tob2 mRNA were most intensely expressed in the early differentiating fibers, with weaker expression in anterior epithelial cells, and both appeared to be downregulated in the germinative zone of E15.5 lenses. TOB1 protein was detected from E11.5 to E16.5 and was predominantly detected in large cytoplasmic puncta in early differentiating fiber cells, often co-localizing with the P-body marker, DCP2. Occasional nuclear puncta were also observed. By contrast, TOB2 was detected in a series of interconnected peri-nuclear granules, in later differentiating fiber cells of the inner cortex. TOB2 did not appear to co-localize with DCP2 but did partially co-localize with an early stress granule marker (EIF3B). These data suggest that TOB1 and TOB2 are involved with different aspects of the mRNA processing cycle in lens fiber cells. In vitro experiments using rat lens epithelial explants treated with or without a fiber differentiating dose of FGF2 showed that both TOB1 and TOB2 were up-regulated during FGF-induced differentiation. In differentiating explants, TOB1 also co-localized with DCP2 in large cytoplasmic granules. Analyses of Tob1-/- mice revealed relatively normal lens morphology but a subtle defect in cell cycle arrest of some cells at the equator and in the lens fiber mass of E13.5 embryos. Overall, these findings suggest that TOB proteins play distinct regulatory roles in RNA processing during lens fiber differentiation.
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Affiliation(s)
- Rafaela C Perez
- Ocular Development Laboratory, Anatomy & Physiology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Xenia Yang
- Ocular Development Laboratory, Anatomy & Physiology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Mary Familari
- School of Biosciences, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Gemma Martinez
- Ocular Development Laboratory, Anatomy & Physiology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Frank J Lovicu
- Molecular and Cellular Biomedicine, School of Medical Sciences and Save Sight Institute, University of Sydney, Sydney, NSW, 2006, Australia
| | - Gary R Hime
- Stem Cell Genetics Laboratory, Anatomy & Physiology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Robb U de Iongh
- Ocular Development Laboratory, Anatomy & Physiology, University of Melbourne, Parkville, VIC, 3010, Australia.
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Moran B, Smith CM, Zaborowski A, Ryan M, Karman J, Dunstan RW, Smith KM, Hambly R, Musilova J, Petrasca A, Fabre A, O'Donnell M, Hokamp K, Mills KHG, Housley WJ, Winter DC, Kirby B, Fletcher JM. Targeting the NLRP3 inflammasome reduces inflammation in hidradenitis suppurativa skin. Br J Dermatol 2023; 189:447-458. [PMID: 37243544 DOI: 10.1093/bjd/ljad184] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 05/23/2023] [Accepted: 05/25/2023] [Indexed: 05/29/2023]
Abstract
BACKGROUND Treatment for the debilitating disease hidradenitis suppurativa (HS) is inadequate in many patients. Despite an incidence of approximately 1%, HS is often under-recognized and underdiagnosed, and is associated with a high morbidity and poor quality of life. OBJECTIVES To gain a better understanding of the pathogenesis of HS, in order to design new therapeutic strategies. METHODS We employed single-cell RNA sequencing to analyse gene expression in immune cells isolated from involved HS skin vs. healthy skin. Flow cytometry was used to quantify the absolute numbers of the main immune populations. The secretion of inflammatory mediators from skin explant cultures was measured using multiplex and enzyme-linked immunosorbent assays. RESULTS Single-cell RNA sequencing analysis identified a significant enrichment in the frequency of plasma cells, T helper (Th) 17 cells and dendritic cell subsets in HS skin, and the immune transcriptome was distinct and more heterogeneous than healthy skin. Flow cytometry revealed significantly increased numbers of T cells, B cells, neutrophils, dermal macrophages and dendritic cells in HS skin. Genes and pathways associated with Th17 cells, interleukin (IL)-17, IL-1β and the NLRP3 inflammasome were enhanced in HS skin, particularly in samples with a high inflammatory load. Inflammasome constituent genes principally mapped to Langerhans cells and a subpopulation of dendritic cells. The secretome of HS skin explants contained significantly increased concentrations of inflammatory mediators, including IL-1β and IL-17A, and culture with an NLRP3 inflammasome inhibitor significantly reduced the secretion of these, as well as other, key mediators of inflammation. CONCLUSIONS These data provide a rationale for targeting the NLRP3 inflammasome in HS using small-molecule inhibitors that are currently being tested for other indications.
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Affiliation(s)
- Barry Moran
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Conor M Smith
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | | | - Mark Ryan
- AbbVie, Immunology Discovery Research, AbbVie Bioresearch Center, Worcester, MA, USA
| | - Jozsef Karman
- AbbVie, Immunology Systems Computational Biology, Cambridge Research Center, Cambridge, MA, USA
| | - Robert W Dunstan
- AbbVie, Immunology Discovery Research, AbbVie Bioresearch Center, Worcester, MA, USA
| | - Kathleen M Smith
- AbbVie, Immunology Systems Computational Biology, Cambridge Research Center, Cambridge, MA, USA
| | - Roisin Hambly
- Department of Dermatology, St. Vincent's University Hospital and Charles Institute of Dermatology, University College Dublin, Dublin, Ireland
| | - Jana Musilova
- Education and Research Centre, University College Dublin, Dublin, Ireland
| | - Andreea Petrasca
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Aurelie Fabre
- Department of Histopathology, St. Vincent's University Hospital and School of Medicine, University College Dublin, Ireland
| | | | - Karsten Hokamp
- Department of Genetics, School of Genetics and Microbiology, Smurfit Institute of Genetics
| | - Kingston H G Mills
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - William J Housley
- AbbVie, Immunology Discovery Research, AbbVie Bioresearch Center, Worcester, MA, USA
| | - Desmond C Winter
- Department of Surgery, St. Vincent's University Hospital, Dublin, Ireland
| | - Brian Kirby
- Department of Dermatology, St. Vincent's University Hospital and Charles Institute of Dermatology, University College Dublin, Dublin, Ireland
| | - Jean M Fletcher
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
- School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
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Nishimura H, Jin D, Kinoshita I, Taniuchi M, Higashino M, Terada T, Takai S, Kawata R. Increased Chymase-Positive Mast Cells in High-Grade Mucoepidermoid Carcinoma of the Parotid Gland. Int J Mol Sci 2023; 24:ijms24098267. [PMID: 37175975 PMCID: PMC10179695 DOI: 10.3390/ijms24098267] [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: 04/11/2023] [Revised: 05/02/2023] [Accepted: 05/03/2023] [Indexed: 05/15/2023] Open
Abstract
It has long been known that high-grade mucoepidermoid carcinoma (MEC) has a poor prognosis, but the detailed molecular and biological mechanisms underlying this are not fully understood. In the present study, the pattern of chymase-positive mast cells, as well as chymase gene expression, in high-grade MEC was compared to that of low-grade and intermediate-grade MEC by using 44 resected tumor samples of MEC of the parotid gland. Chymase expression, as well as chymase-positive mast cells, was found to be markedly increased in high-grade MEC. Significant increases in PCNA-positive cells and VEGF gene expression, as well as lymphangiogenesis, were also confirmed in high-grade MEC. Chymase substrates, such as the latent transforming growth factor-beta (TGF-β) 1 and pro-matrix metalloproteinase (MMP)-9, were also detected immunohistologically in high-grade MEC. These findings suggested that the increased chymase activity may increase proliferative activity, as well as metastasis in the malignant condition, and the inhibition of chymase may be a strategy to improve the poor prognosis of high-grade MEC of the parotid gland.
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Affiliation(s)
- Hiromi Nishimura
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical and Pharmaceutical University, Takatsuki-City 569-8686, Osaka, Japan
| | - Denan Jin
- Department of Innovative Medicine, Graduate School of Medicine, Osaka Medical and Pharmaceutical University, Takatsuki-City 569-8686, Osaka, Japan
| | - Ichita Kinoshita
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical and Pharmaceutical University, Takatsuki-City 569-8686, Osaka, Japan
| | - Masataka Taniuchi
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical and Pharmaceutical University, Takatsuki-City 569-8686, Osaka, Japan
| | - Masaaki Higashino
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical and Pharmaceutical University, Takatsuki-City 569-8686, Osaka, Japan
| | - Tetsuya Terada
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical and Pharmaceutical University, Takatsuki-City 569-8686, Osaka, Japan
| | - Shinji Takai
- Department of Innovative Medicine, Graduate School of Medicine, Osaka Medical and Pharmaceutical University, Takatsuki-City 569-8686, Osaka, Japan
| | - Ryo Kawata
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical and Pharmaceutical University, Takatsuki-City 569-8686, Osaka, Japan
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6
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Li B. Why do tumor-infiltrating lymphocytes have variable efficacy in the treatment of solid tumors? Front Immunol 2022; 13:973881. [PMID: 36341370 PMCID: PMC9635507 DOI: 10.3389/fimmu.2022.973881] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 09/14/2022] [Indexed: 07/30/2023] Open
Abstract
Lymphocytes in tumor tissue are called tumor-infiltrating lymphocytes (TILs), and they play a key role in the control and treatment of tumor diseases. Since the discovery in 1987 that cultured TILs can kill tumor cells more than 100 times more effectively than T-cells cultured from peripheral blood in melanoma, it has been confirmed that cultured TILs can successfully cure clinical patients with melanoma. Since 1989, after we investigated TIL isolation performance from solid tumors, we modified some procedures to increase efficacy, and thus successfully established new TIL isolation and culture methods in 1994. Moreover, our laboratory and clinicians using our cultured TILs have published more than 30 papers. To improve the efficacy of TILs, we have been carrying out studies of TIL efficacy to treat solid tumor diseases for approximately 30 years. The three main questions of TIL study have been "How do TILs remain silent in solid tumor tissue?", "How do TILs attack homologous and heterologous antigens from tumor cells of solid tumors?", and "How do TILs infiltrate solid tumor tissue from a distance into tumor sites to kill tumor cells?". Research on these three issues has increasingly answered these questions. In this review I summarize the main issues surrounding TILs in treating solid tumors. This review aims to study the killing function of TILs from solid tumor tissues, thereby ultimately introducing the optimal strategy for patients suffering from solid tumors through personalized immunotherapy in the near future.
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7
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Yu Z, Wang L, Zhao J, Song H, Zhao C, Zhao W, Jia M. TOB1 attenuates IRF3-directed antiviral responses by recruiting HDAC8 to specifically suppress IFN-β expression. Commun Biol 2022; 5:943. [PMID: 36085336 PMCID: PMC9463440 DOI: 10.1038/s42003-022-03911-x] [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: 11/24/2021] [Accepted: 08/30/2022] [Indexed: 11/26/2022] Open
Abstract
Interferon regulatory factor 3 (IRF3) is a key transcription factor required for the secretion of type I interferons (IFN-α/β) and initiation of antiviral immune response. However, the negative feedback regulator of IRF3-directed antiviral response remains unknown. In this study, we demonstrated that viral infection induced the interaction of the transducer of ERBB2.1 (TOB1) with IRF3, which bound to the promoter region of Ifnb1 in macrophages. TOB1 inhibited Ifnb1 transcription by disrupting IRF3 binding and recruiting histone deacetylase 8 (HDAC8) to the Ifnb1 promoter region. Consequently, TOB1 attenuated IRF3-directed IFN-β expression in virus-infected macrophages. Tob1 deficiency enhanced antiviral response and suppressed viral replication in vivo. Thus, we identified TOB1 as a feedback inhibitor of host antiviral innate immune response and revealed a mechanism underlying viral immune escape. TOB1 is identified as an interferon regulatory factor 3 (IRF3) binding partner that operates as a negative feedback inhibitor of IFNβ in toll-like receptor and cytosolic nucleic acid receptor sensing pathways.
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8
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Douvris A, Viñas J, Burns KD. miRNA-486-5p: signaling targets and role in non-malignant disease. Cell Mol Life Sci 2022; 79:376. [PMID: 35731367 PMCID: PMC9217846 DOI: 10.1007/s00018-022-04406-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 05/27/2022] [Accepted: 05/29/2022] [Indexed: 11/30/2022]
Abstract
MicroRNAs (miRNAs) are short non-coding RNAs, highly conserved between species, that are powerful regulators of gene expression. Aberrant expression of miRNAs alters biological processes and pathways linked to human disease. miR-486-5p is a muscle-enriched miRNA localized to the cytoplasm and nucleus, and is highly abundant in human plasma and enriched in small extracellular vesicles. Studies of malignant and non-malignant diseases, including kidney diseases, have found correlations with circulating miR-486-5p levels, supporting its role as a potential biomarker. Pre-clinical studies of non-malignant diseases have identified miR-486-5p targets that regulate major signaling pathways involved in cellular proliferation, migration, angiogenesis, and apoptosis. Validated miR-486-5p targets include phosphatase and tensin homolog (PTEN) and FoXO1, whose suppression activates phosphatidyl inositol-3-kinase (PI3K)/Akt signaling. Targeting of Smad1/2/4 and IGF-1 by miR-486-5p inhibits transforming growth factor (TGF)-β and insulin-like growth factor-1 (IGF-1) signaling, respectively. Other miR-486-5p targets include matrix metalloproteinase-19 (MMP-19), Sp5, histone acetyltransferase 1 (HAT1), and nuclear factor of activated T cells-5 (NFAT5). In this review, we examine the biogenesis, regulation, validated gene targets and biological effects of miR-486-5p in non-malignant diseases.
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Affiliation(s)
- Adrianna Douvris
- Division of Nephrology, Department of Medicine and Kidney Research Centre, The Ottawa Hospital Research Institute, University of Ottawa, 1967 Riverside Dr., Rm. 535, Ottawa, ON, K1H 7W9, Canada.,Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Jose Viñas
- Division of Nephrology, Department of Medicine and Kidney Research Centre, The Ottawa Hospital Research Institute, University of Ottawa, 1967 Riverside Dr., Rm. 535, Ottawa, ON, K1H 7W9, Canada
| | - Kevin D Burns
- Division of Nephrology, Department of Medicine and Kidney Research Centre, The Ottawa Hospital Research Institute, University of Ottawa, 1967 Riverside Dr., Rm. 535, Ottawa, ON, K1H 7W9, Canada. .,Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada.
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9
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Jalaiei A, Asadi MR, Sabaie H, Dehghani H, Gharesouran J, Hussen BM, Taheri M, Ghafouri-Fard S, Rezazadeh M. Long Non-Coding RNAs, Novel Offenders or Guardians in Multiple Sclerosis: A Scoping Review. Front Immunol 2021; 12:774002. [PMID: 34950142 PMCID: PMC8688805 DOI: 10.3389/fimmu.2021.774002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 11/08/2021] [Indexed: 12/24/2022] Open
Abstract
Multiple sclerosis (MS), a chronic inflammatory demyelinating disease of the central nervous system, is one of the most common neurodegenerative diseases worldwide. MS results in serious neurological dysfunctions and disability. Disturbances in coding and non-coding genes are key components leading to neurodegeneration along with environmental factors. Long non-coding RNAs (lncRNAs) are long molecules in cells that take part in the regulation of gene expression. Several studies have confirmed the role of lncRNAs in neurodegenerative diseases such as MS. In the current study, we performed a systematic analysis of the role of lncRNAs in this disorder. In total, 53 studies were recognized as eligible for this systematic review. Of the listed lncRNAs, 52 lncRNAs were upregulated, 37 lncRNAs were downregulated, and 11 lncRNAs had no significant expression difference in MS patients compared with controls. We also summarized some of the mechanisms of lncRNA functions in MS. The emerging role of lncRNAs in neurodegenerative diseases suggests that their dysregulation could trigger neuronal death via still unexplored RNA-based regulatory mechanisms. Evaluation of their diagnostic significance and therapeutic potential could help in the design of novel treatments for MS.
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Affiliation(s)
- Abbas Jalaiei
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Reza Asadi
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hani Sabaie
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hossein Dehghani
- Department of Molecular Medicine, School of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Jalal Gharesouran
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bashdar Mahmud Hussen
- Department Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil, Iraq
| | - Mohammad Taheri
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Institute of Human Genetics, Jena University Hospital, Jena, Germany
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Rezazadeh
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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10
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Lin R, Ma C, Fang L, Xu C, Zhang C, Wu X, Wu W, Zhu R, Cong Y, Liu Z. TOB1 Blocks Intestinal Mucosal Inflammation Through Inducing ID2-Mediated Suppression of Th1/Th17 Cell Immune Responses in IBD. Cell Mol Gastroenterol Hepatol 2021; 13:1201-1221. [PMID: 34920145 PMCID: PMC8881672 DOI: 10.1016/j.jcmgh.2021.12.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 12/08/2021] [Accepted: 12/08/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND & AIMS TOB1 is an anti-proliferative protein of Tob/BTG family and typically involved in the tumorigenesis and T cell activation. Although TOB1 is associated with T helper 17 cell-related autoimmunity, its role in modulating T cell-mediated immune responses in IBD remains poorly understood. Here, we explored its expression and the underlying mechanisms involved in the pathogenesis of inflammatory bowel disease (IBD). METHODS TOB1 and ID2 expression in IBD patients was examined by quantitative real time polymerase chain reaction and immunohistochemistry. IBD CD4+ T cells were transfected with lentivirus expressing TOB1, ID2, TOB1 short hairpin RNA and ID2 short hairpin RNA, respectively, and Tob1-/-CD4+ T cells were transfected with lentivirus expressing Id2. Experimental colitis was established in Tob1-/- mice by trinitrobenzene sulfonic acid enema and in Rag1-/- mice reconstituted with Tob1-/-CD45RBhighCD4+ T cells to further explore the role of Tob1 in intestinal mucosal inflammation. Splenic CD4+ T cells of Tob1-/- mice were sorted to determine transcriptome differences by RNA sequencing. RESULTS TOB1 expression was decreased in inflamed mucosa and peripheral blood CD4+ T cells of IBD patients compared with healthy subjects. Overexpression of TOB1 downregulated IBD CD4+ T cells to differentiate into Th1/Th17 cells compared with control subjects. Severe colitis was observed in Tob1-/- mice through trinitrobenzene sulfonic acid enema or in Rag1-/- mice reconstituted with Tob1-/-CD45RBhighCD4+ T cells, compared with control animals. RNA sequencing analysis revealed ID2 as functional target of TOB1 to inhibit IBD CD4+ T cell differentiation into Th1/Th17 cells. Mechanistically, TOB1 was associated with Smad4/5 to induce ID2 expression and restrain Th1/Th17 cell differentiation. CONCLUSIONS TOB1 restrains intestinal mucosal inflammation through suppressing Th1/Th17 cell-mediated immune responses via the Smad4/5-ID2 pathway. It may serve as a novel therapeutic target for treatment of human IBD.
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Affiliation(s)
- Ritian Lin
- Center for IBD Research, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Caiyun Ma
- Center for IBD Research, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Leilei Fang
- Center for IBD Research, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Chunjin Xu
- Department of Gastroenterology, First People’s Hospital of Shangqiu City Affiliated to Xinxiang Medical University, Shangqiu, China
| | - Cui Zhang
- Center for IBD Research, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiaohan Wu
- Center for IBD Research, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wei Wu
- Center for IBD Research, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ruixin Zhu
- Department of Bioinformatics, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Yingzi Cong
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas
| | - Zhanju Liu
- Center for IBD Research, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China,Department of Gastroenterology, Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China,Correspondence Address correspondence to: Zhanju Liu, MD, PhD, Center for IBD Research, The Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072, China. fax: +86 21 66303983.
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11
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Kinoshita I, Jin D, Higashino M, Terada T, Kurisu Y, Takai S, Kawata R. Increase in Chymase-Positive Mast Cells in Recurrent Pleomorphic Adenoma and Carcinoma Ex Pleomorphic Adenoma of the Parotid Gland. Int J Mol Sci 2021; 22:ijms222312613. [PMID: 34884420 PMCID: PMC8657626 DOI: 10.3390/ijms222312613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/09/2021] [Accepted: 11/19/2021] [Indexed: 11/16/2022] Open
Abstract
Incomplete excision of pleomorphic adenoma (PA) may result in recurrent pleomorphic adenoma (RPA). Furthermore, long-term neglected PA may become carcinoma ex pleomorphic adenoma (CXPA). In the present study, the relationships between mast cell-derived chymase and these tumors were examined. The tumor tissues of PA consisted of either or both glandular and fibrotic structures. Histological features of RPA were almost similar to those of PA, except that they showed multinodular structures. CXPA is composed of a mixture of PA and carcinoma. The main stromal cells in PA were myofibroblasts, whereas fibroblasts constituted the main cellular portion in the stromal tissue of RPA. Cancer-associated fibroblasts (CAFs) were present abundantly in CXPA. With increased VEGF expression, neovascularization tended to increase in RPA or CXPA. Compared with PA, chymase-positive mast cells, as well as chymase gene expression, were increased in the tumor tissues from patients with RPA or CXPA. SCF, TGFβ1, and PCNA-positive staining was widely observed in these tumor tissues. The above results suggest that mast cell-derived chymase through its direct or cooperative effects with other mediators may participate in the pathophysiology of RPA and CXPA.
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Affiliation(s)
- Ichita Kinoshita
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical and Pharmaceutical University, Takatsuki-City 569-8686, Japan; (I.K.); (M.H.); (T.T.); (R.K.)
| | - Denan Jin
- Department of Innovative Medicine, Graduate School of Medicine, Osaka Medical and Pharmaceutical University, Takatsuki-City 569-8686, Japan;
- Correspondence: ; Tel.: +81-72-683-1221
| | - Masaaki Higashino
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical and Pharmaceutical University, Takatsuki-City 569-8686, Japan; (I.K.); (M.H.); (T.T.); (R.K.)
| | - Tetsuya Terada
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical and Pharmaceutical University, Takatsuki-City 569-8686, Japan; (I.K.); (M.H.); (T.T.); (R.K.)
| | - Yoshitaka Kurisu
- Department of Pathology, Osaka Medical and Pharmaceutical University, Takatsuki-City 569-8686, Japan;
| | - Shinji Takai
- Department of Innovative Medicine, Graduate School of Medicine, Osaka Medical and Pharmaceutical University, Takatsuki-City 569-8686, Japan;
| | - Ryo Kawata
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical and Pharmaceutical University, Takatsuki-City 569-8686, Japan; (I.K.); (M.H.); (T.T.); (R.K.)
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12
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Yao Y, Wyrozżemski Ł, Lundin KEA, Sandve GK, Qiao SW. Differential expression profile of gluten-specific T cells identified by single-cell RNA-seq. PLoS One 2021; 16:e0258029. [PMID: 34618841 PMCID: PMC8496852 DOI: 10.1371/journal.pone.0258029] [Citation(s) in RCA: 3] [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: 12/20/2020] [Accepted: 09/17/2021] [Indexed: 01/22/2023] Open
Abstract
Gluten-specific CD4+ T cells drive the pathogenesis of celiac disease and circulating gluten-specific T cells can be identified by staining with HLA-DQ:gluten tetramers. In this first single-cell RNA-seq study of tetramer-sorted T cells from untreated celiac disease patients blood, we found that gluten-specific T cells showed distinct transcriptomic profiles consistent with activated effector memory T cells that shared features with Th1 and follicular helper T cells. Compared to non-specific cells, gluten-specific T cells showed differential expression of several genes involved in T-cell receptor signaling, translational processes, apoptosis, fatty acid transport, and redox potentials. Many of the gluten-specific T cells studied shared T-cell receptor with each other, indicating that circulating gluten-specific T cells belong to a limited number of clones. Moreover, the transcriptional profiles of cells that shared the same clonal origin were transcriptionally more similar compared with between clonally unrelated gluten-specific cells.
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Affiliation(s)
- Ying Yao
- Department of Immunology, University of Oslo, Oslo, Norway
- Centre for Immune Regulation, University of Oslo, Oslo, Norway
- K.G. Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway
| | - Łukasz Wyrozżemski
- Department of Immunology, University of Oslo, Oslo, Norway
- K.G. Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway
| | - Knut E. A. Lundin
- Department of Immunology, University of Oslo, Oslo, Norway
- Centre for Immune Regulation, University of Oslo, Oslo, Norway
- K.G. Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway
| | - Geir Kjetil Sandve
- K.G. Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway
- Department of Informatics, University of Oslo, Oslo, Norway
| | - Shuo-Wang Qiao
- Department of Immunology, University of Oslo, Oslo, Norway
- Centre for Immune Regulation, University of Oslo, Oslo, Norway
- K.G. Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway
- * E-mail:
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13
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Translational targeting of inflammation and fibrosis in frozen shoulder: Molecular dissection of the T cell/IL-17A axis. Proc Natl Acad Sci U S A 2021; 118:2102715118. [PMID: 34544860 PMCID: PMC8488623 DOI: 10.1073/pnas.2102715118] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/21/2021] [Indexed: 12/15/2022] Open
Abstract
Frozen shoulder is a common fibroproliferative disease characterized by the insidious onset of pain and restricted range of shoulder movement with a significant socioeconomic impact. The pathophysiological mechanisms responsible for chronic inflammation and matrix remodeling in this prevalent fibrotic disorder remain unclear; however, increasing evidence implicates dysregulated immunobiology. IL-17A is a key cytokine associated with inflammation and tissue remodeling in numerous musculoskeletal diseases, and thus, we sought to determine the role of IL-17A in the immunopathogenesis of frozen shoulder. We demonstrate an immune cell landscape that switches from a predominantly macrophage population in nondiseased tissue to a T cell-rich environment in disease. Furthermore, we observed a subpopulation of IL-17A-producing T cells capable of inducing profibrotic and inflammatory responses in diseased fibroblasts through enhanced expression of the signaling receptor IL-17RA, rendering diseased cells more sensitive to IL-17A. We further established that the effects of IL-17A on diseased fibroblasts was TRAF-6/NF-κB dependent and could be inhibited by treatment with an IKKβ inhibitor or anti-IL-17A antibody. Accordingly, targeting of the IL-17A pathway may provide future therapeutic approaches to the management of this common, debilitating disease.
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14
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Kye YC, Lee GW, Lee SW, Ju YJ, Kim HO, Yun CH, Cho JH. STAT1 maintains naïve CD8 + T cell quiescence by suppressing the type I IFN-STAT4-mTORC1 signaling axis. SCIENCE ADVANCES 2021; 7:eabg8764. [PMID: 34516905 PMCID: PMC8442933 DOI: 10.1126/sciadv.abg8764] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 07/13/2021] [Indexed: 06/13/2023]
Abstract
Naïve CD8+ T cell quiescence is maintained at a steady state. Although this state of quiescence involves various cell-intrinsic and cell-extrinsic regulators, the mechanisms underlying this regulation remain incompletely understood. Here, we found that signal transducer and activator of transcription 1 (STAT1), a key transcription factor downstream of interferon receptor (IFNR) signaling, plays a cell-intrinsic role in maintaining naïve CD8+ T cell quiescence. STAT1-deficient mice showed enhanced proliferation of peripheral naïve CD8+ T cells, which resulted in an abnormal increase in the number of CD44hi memory/activated phenotype cells and an enlargement of secondary lymphoid tissues. This phenomenon was not observed in IFNR-deficient mice but was paradoxically dependent on type I interferon and its alternative signaling pathway via the STAT4–RagD–lysosomal mTORC1 axis. Collectively, these findings underline the importance of STAT1 in regulating the homeostasis of peripheral naïve CD8+ T cells by suppressing their responsiveness to homeostatic cues at a steady state.
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Affiliation(s)
- Yoon-Chul Kye
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
- Institutes of Green-bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea
| | - Gil-Woo Lee
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, Pohang 37673, Korea
- Department of Microbiology and Immunology and Medical Research Center for Combinatorial Tumor Immunotherapy, Chonnam National University Medical School, Hwasun 58128, Korea
- Immunotherapy Innovation Center, Hwasun Hospital, Chonnam National University Medical School, Hwasun 58128, Korea
| | - Sung-Woo Lee
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, Pohang 37673, Korea
- Department of Microbiology and Immunology and Medical Research Center for Combinatorial Tumor Immunotherapy, Chonnam National University Medical School, Hwasun 58128, Korea
- Immunotherapy Innovation Center, Hwasun Hospital, Chonnam National University Medical School, Hwasun 58128, Korea
| | - Young-Jun Ju
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
- Institutes of Green-bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea
| | - Hee-Ok Kim
- Immunotherapy Innovation Center, Hwasun Hospital, Chonnam National University Medical School, Hwasun 58128, Korea
| | - Cheol-Heui Yun
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
- Institutes of Green-bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea
| | - Jae-Ho Cho
- Department of Microbiology and Immunology and Medical Research Center for Combinatorial Tumor Immunotherapy, Chonnam National University Medical School, Hwasun 58128, Korea
- Immunotherapy Innovation Center, Hwasun Hospital, Chonnam National University Medical School, Hwasun 58128, Korea
- Biomedical Sciences Graduate Program, Chonnam National University, Hwasun 58128, Korea
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15
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TGF-β Signaling: From Tissue Fibrosis to Tumor Microenvironment. Int J Mol Sci 2021; 22:ijms22147575. [PMID: 34299192 PMCID: PMC8303588 DOI: 10.3390/ijms22147575] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/09/2021] [Accepted: 07/09/2021] [Indexed: 02/06/2023] Open
Abstract
Transforming growth factor-β (TGF-β) signaling triggers diverse biological actions in inflammatory diseases. In tissue fibrosis, it acts as a key pathogenic regulator for promoting immunoregulation via controlling the activation, proliferation, and apoptosis of immunocytes. In cancer, it plays a critical role in tumor microenvironment (TME) for accelerating invasion, metastasis, angiogenesis, and immunosuppression. Increasing evidence suggest a pleiotropic nature of TGF-β signaling as a critical pathway for generating fibrotic TME, which contains numerous cancer-associated fibroblasts (CAFs), extracellular matrix proteins, and remodeling enzymes. Its pathogenic roles and working mechanisms in tumorigenesis are still largely unclear. Importantly, recent studies successfully demonstrated the clinical implications of fibrotic TME in cancer. This review systematically summarized the latest updates and discoveries of TGF-β signaling in the fibrotic TME.
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16
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Tolerogenic Immunoregulation towards Salmonella Enteritidis Contributes to Colonization Persistence in Young Chicks. Infect Immun 2021; 89:e0073620. [PMID: 34031125 PMCID: PMC8281283 DOI: 10.1128/iai.00736-20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Long-term survival and the persistence of bacteria in the host suggest either host unresponsiveness or induction of an immunological tolerant response to the pathogen. The role of the host immunological response to persistent colonization of Salmonella Enteritidis (SE) in chickens remains poorly understood. In the current study, we performed a cecal tonsil transcriptome analysis in a model of SE persistent infection in 2-week-old chickens to comprehensively examine the dynamics of host immunological responses in the chicken gastrointestinal tract. Our results revealed overall host tolerogenic adaptive immune regulation in a major gut-associated lymphoid tissue, the cecal tonsil, during SE infection. Specifically, we observed consistent downregulation of the metallothionein 4 gene at all four postinfection time points (3, 7, 14, and 21 days postinfection [dpi]), which suggested potential pathogen-associated manipulation of the host zinc regulation as well as a possible immune modulatory effect. Furthermore, delayed activation in the B cell receptor signaling pathway and failure to sustain its active state during the lag phase of infection were further supported by an insignificant production of both intestinal and circulatory antibodies. Tug-of-war for interleukin 2 (IL-2) regulation between effector T cells and regulatory T cells appears to have consequences for upregulation in the transducer of ERBB2 (TOB) pathway, a negative regulator of T cell proliferation. In conclusion, this work highlights the overall host tolerogenic immune response that promotes persistent colonization by SE in young layer chicks.
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Harnessing Carcinoma Cell Plasticity Mediated by TGF-β Signaling. Cancers (Basel) 2021; 13:cancers13143397. [PMID: 34298613 PMCID: PMC8307280 DOI: 10.3390/cancers13143397] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/17/2021] [Accepted: 06/24/2021] [Indexed: 12/22/2022] Open
Abstract
Simple Summary This review describes mechanisms driving epithelial plasticity in carcinoma mediated by transforming growth factor beta (TGF-β) signaling. Plasticity in carcinoma is frequently induced through epithelial–mesenchymal transition (EMT), an evolutionary conserved process in the development of multicellular organisms. The review explores the multifaceted functions of EMT, particularly focusing on the intermediate stages, which provide more adaptive responses of carcinoma cells in their microenvironment. The review critically considers how different intermediate or hybrid EMT stages confer carcinoma cells with stemness, refractoriness to therapies, and ability to execute all steps of the metastatic cascade. Finally, the review provides examples of therapeutic interventions based on the EMT concept. Abstract Epithelial cell plasticity, a hallmark of carcinoma progression, results in local and distant cancer dissemination. Carcinoma cell plasticity can be achieved through epithelial–mesenchymal transition (EMT), with cells positioned seemingly indiscriminately across the spectrum of EMT phenotypes. Different degrees of plasticity are achieved by transcriptional regulation and feedback-loops, which confer carcinoma cells with unique properties of tumor propagation and therapy resistance. Decoding the molecular and cellular basis of EMT in carcinoma should enable the discovery of new therapeutic strategies against cancer. In this review, we discuss the different attributes of plasticity in carcinoma and highlight the role of the canonical TGFβ receptor signaling pathway in the acquisition of plasticity. We emphasize the potential stochasticity of stemness in carcinoma in relation to plasticity and provide data from recent clinical trials that seek to target plasticity.
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18
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ElTanbouly MA, Noelle RJ. Rethinking peripheral T cell tolerance: checkpoints across a T cell's journey. Nat Rev Immunol 2021; 21:257-267. [PMID: 33077935 DOI: 10.1038/s41577-020-00454-2] [Citation(s) in RCA: 104] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/18/2020] [Indexed: 01/10/2023]
Abstract
Following their exit from the thymus, T cells are endowed with potent effector functions but must spare host tissue from harm. The fate of these cells is dictated by a series of checkpoints that regulate the quality and magnitude of T cell-mediated immunity, known as tolerance checkpoints. In this Perspective, we discuss the mediators and networks that control the six main peripheral tolerance checkpoints throughout the life of a T cell: quiescence, ignorance, anergy, exhaustion, senescence and death. At the naive T cell stage, two intrinsic checkpoints that actively maintain tolerance are quiescence and ignorance. In the presence of co-stimulation-deficient T cell activation, anergy is a dominant hallmark that mandates T cell unresponsiveness. When T cells are successfully stimulated and reach the effector stage, exhaustion and senescence can limit excessive inflammation and prevent immunopathology. At every stage of the T cell's journey, cell death exists as a checkpoint to limit clonal expansion and to terminate unrestrained responses. Here, we compare and contrast the T cell tolerance checkpoints and discuss their specific roles, with the aim of providing an integrated view of T cell peripheral tolerance and fate regulation.
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Affiliation(s)
- Mohamed A ElTanbouly
- Department of Microbiology and Immunology, Geisel School of Medicine, Norris Cotton Cancer Center, Dartmouth College, Hanover, NH, USA
| | - Randolph J Noelle
- Department of Microbiology and Immunology, Geisel School of Medicine, Norris Cotton Cancer Center, Dartmouth College, Hanover, NH, USA.
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19
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Fonseca-Camarillo G, Furuzawa-Carballeda J, Priego-Ranero ÁA, Martínez-Benítez B, Barreto-Zúñiga R, Yamamoto-Furusho JK. Expression of TOB/BTG family members in patients with inflammatory bowel disease. Scand J Immunol 2021; 93:e13004. [PMID: 33247598 DOI: 10.1111/sji.13004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/10/2020] [Accepted: 11/22/2020] [Indexed: 01/24/2023]
Abstract
In recent years, the role of anti-proliferative TOB proteins in the regulation of immune response by inhibiting T cell activation has been demonstrated. Nevertheless, no previous studies have explored their expression in patients with IBD. The aim of the study was to characterize the gene and protein expression of the TOB/BTG family in intestinal tissue of patients with IBD. This is an observational and cross-sectional study that included 63 IBD patients. Gene expression of TOB/BTG family was measured by RT-PCR. Protein expression of TOB/CD16 and BTG/Ki-67 was evaluated by immunohistochemistry. TOB/BTG family mRNAs were detected and quantitated by RT-qPCR in rectal and ileum biopsies from UC patients and CD patients, respectively, and non-inflammatory control tissues. Results showed that TOB1 and BTG1 gene expression was decreased in the colonic mucosa from patients with UC compared with the control group. The TOB2 and BTG2 genes were over-expressed in the colonic mucosa of patients with UC in remission compared with the active UC and control group. The high TOB2 gene expression was associated with histological remission (P = .01). TOB1/CD16, TOB2/CD16, BTG1/Ki-67, BTG2/Ki-67 and BTG4/Ki-67 single and double positive cells were mostly NK, macrophages, epithelial cells, connective tissue cells and perivascular inflammatory infiltrates in tissues from patients with UC and CD. This is the first depiction of the TOB/BTG family gene and protein expression in rectal and ileum tissues by a CD16+ subpopulation in IBD.
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Affiliation(s)
- Gabriela Fonseca-Camarillo
- Inflammatory Bowel Disease Clinic, Department of Gastroenterology, Instituto Nacional de Ciencias Médicas y Nutrición, Salvador Zubirán, Mexico City, Mexico
| | - Janette Furuzawa-Carballeda
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición, Salvador Zubirán, Mexico City, Mexico
| | - Ángel A Priego-Ranero
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición, Salvador Zubirán, Mexico City, Mexico
| | - Braulio Martínez-Benítez
- Department of Pathology, Instituto Nacional de Ciencias Médicas y Nutrición, Salvador Zubirán, Mexico City, Mexico
| | - Rafael Barreto-Zúñiga
- Department of Endoscopy, Instituto Nacional de Ciencias Médicas y Nutrición, Salvador Zubirán, Mexico City, Mexico
| | - Jesús K Yamamoto-Furusho
- Inflammatory Bowel Disease Clinic, Department of Gastroenterology, Instituto Nacional de Ciencias Médicas y Nutrición, Salvador Zubirán, Mexico City, Mexico
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20
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Zhao H, Wei J, Sun J. Roles of TGF-β signaling pathway in tumor microenvirionment and cancer therapy. Int Immunopharmacol 2020; 89:107101. [PMID: 33099067 DOI: 10.1016/j.intimp.2020.107101] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/10/2020] [Accepted: 10/10/2020] [Indexed: 12/15/2022]
Abstract
Transforming growth factor β (TGF- β) signaling pathway has pleiotropic effects on cell proliferation, differentiation, adhesion, senescence, and apoptosis. TGF-β can be widely produced by various immune or non-immune cells and regulate cell behaviors through autocrine and paracrine. It plays essential roles in biological processes including embryological development, immune response, and tumor progression. Few cell signalings can contribute to so many pleiotropic functions as the TGF- β signaling pathway in mammals. The significant function of TGF-β signaling in tumor progression and evasion leading it to draw great attention in scientific and clinical research. Understanding the mechanism of TGF- β signaling provides us with chances to potentiate the effectiveness and selectivity of this therapeutic method. Herein, we review the molecular and cellular mechanisms of TGF-β signaling in carcinomas and tumor microenvironment. Then, we enumerate main achievements of TGF-β blockades used or being evaluated in cancer therapy, providing us opportunities to improve therapeutical approaches in the tumor which thrive in a TGF-β-rich environment.
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Affiliation(s)
- Haodi Zhao
- Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 30072, PR China
| | - Jing Wei
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, PR China
| | - Jian Sun
- Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 30072, PR China; Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, PR China.
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21
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Arbulo-Echevarria MM, Vico-Barranco I, Narbona-Sánchez I, García-Cózar F, Miazek A, Aguado E. Increased Protein Stability and Interleukin-2 Production of a LAT G131D Variant With Possible Implications for T Cell Anergy. Front Cell Dev Biol 2020; 8:561503. [PMID: 33042995 PMCID: PMC7517355 DOI: 10.3389/fcell.2020.561503] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 08/13/2020] [Indexed: 11/13/2022] Open
Abstract
The adaptor LAT plays a crucial role in the transduction of signals coming from the TCR/CD3 complex. Phosphorylation of some of its tyrosines generates recruitment sites for other cytosolic signaling molecules. Tyrosine 132 in human LAT is essential for PLC-γ activation and calcium influx generation. It has been recently reported that a conserved glycine residue preceding tyrosine 132 decreases its phosphorylation kinetics, which constitutes a mechanism for ligand discrimination. Here we confirm that a LAT mutant in which glycine 131 has been substituted by an aspartate (LATG131D) increases phosphorylation of Tyr132, PLC-γ activation and calcium influx generation. Interestingly, the LATG131D mutant has a slower protein turnover while being equally sensitive to Fas-mediated protein cleavage by caspases. Moreover, J.CaM2 cells expressing LATG131D secrete greater amounts of interleukin-2 (IL-2) in response to CD3/CD28 engagement. However, despite this increased IL-2 secretion, J.CaM2 cells expressing the LATG131D mutant are more sensitive to inhibition of IL-2 production by pre-treatment with anti-CD3, which points to a possible role of this residue in the generation of anergy. Our results suggest that the increased kinetics of LAT Tyr132 phosphorylation could contribute to the establishment of T cell anergy, and thus constitutes an earliest known intracellular event responsible for the induction of peripheral tolerance.
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Affiliation(s)
| | | | | | - Francisco García-Cózar
- Institute of Biomedical Research Cadiz (INIBICA), Cádiz, Spain.,Department of Biomedicine, Biotechnology and Public Health (Immunology), University of Cádiz and Puerto Real University Hospital Research Unit, Cádiz, Spain
| | - Arkadiusz Miazek
- Department of Biochemistry and Molecular Biology, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - Enrique Aguado
- Institute of Biomedical Research Cadiz (INIBICA), Cádiz, Spain.,Department of Biomedicine, Biotechnology and Public Health (Immunology), University of Cádiz and Puerto Real University Hospital Research Unit, Cádiz, Spain
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22
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Hwang SS, Lim J, Yu Z, Kong P, Sefik E, Xu H, Harman CCD, Kim LK, Lee GR, Li HB, Flavell RA. mRNA destabilization by BTG1 and BTG2 maintains T cell quiescence. Science 2020; 367:1255-1260. [DOI: 10.1126/science.aax0194] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 10/22/2019] [Accepted: 02/19/2020] [Indexed: 12/15/2022]
Abstract
T cells maintain a quiescent state prior to activation. As inappropriate T cell activation can cause disease, T cell quiescence must be preserved. Despite its importance, the mechanisms underlying the “quiescent state” remain elusive. Here, we identify BTG1 and BTG2 (BTG1/2) as factors responsible for T cell quiescence. BTG1/2-deficient T cells show an increased proliferation and spontaneous activation due to a global increase in messenger RNA (mRNA) abundance, which reduces the threshold to activation. BTG1/2 deficiency leads to an increase in polyadenylate tail length, resulting in a greater mRNA half-life. Thus, BTG1/2 promote the deadenylation and degradation of mRNA to secure T cell quiescence. Our study reveals a key mechanism underlying T cell quiescence and suggests that low mRNA abundance is a crucial feature for maintaining quiescence.
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Affiliation(s)
- Soo Seok Hwang
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Jaechul Lim
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Zhibin Yu
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06510, USA
- Shanghai Institute of Immunology, Department of Microbiology and Immunology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
- Yale Center for ImmunoMetabolism, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Philip Kong
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Esen Sefik
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Hao Xu
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Christian C. D. Harman
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Lark Kyun Kim
- Severance Biomedical Science Institute and BK21 PLUS Project for Medical Sciences, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 06230, Republic of Korea
| | - Gap Ryol Lee
- Department of Life Science, Sogang University, Seoul 04107, Republic of Korea
| | - Hua-Bing Li
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06510, USA
- Shanghai Institute of Immunology, Department of Microbiology and Immunology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
- Yale Center for ImmunoMetabolism, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Richard A. Flavell
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06510, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815-6789, USA
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23
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ElTanbouly MA, Zhao Y, Nowak E, Li J, Schaafsma E, Le Mercier I, Ceeraz S, Lines JL, Peng C, Carriere C, Huang X, Day M, Koehn B, Lee SW, Silva Morales M, Hogquist KA, Jameson SC, Mueller D, Rothstein J, Blazar BR, Cheng C, Noelle RJ. VISTA is a checkpoint regulator for naïve T cell quiescence and peripheral tolerance. Science 2020; 367:eaay0524. [PMID: 31949051 PMCID: PMC7391053 DOI: 10.1126/science.aay0524] [Citation(s) in RCA: 122] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/30/2019] [Accepted: 12/02/2019] [Indexed: 12/18/2022]
Abstract
Negative checkpoint regulators (NCRs) temper the T cell immune response to self-antigens and limit the development of autoimmunity. Unlike all other NCRs that are expressed on activated T lymphocytes, V-type immunoglobulin domain-containing suppressor of T cell activation (VISTA) is expressed on naïve T cells. We report an unexpected heterogeneity within the naïve T cell compartment in mice, where loss of VISTA disrupted the major quiescent naïve T cell subset and enhanced self-reactivity. Agonistic VISTA engagement increased T cell tolerance by promoting antigen-induced peripheral T cell deletion. Although a critical player in naïve T cell homeostasis, the ability of VISTA to restrain naïve T cell responses was lost under inflammatory conditions. VISTA is therefore a distinctive NCR of naïve T cells that is critical for steady-state maintenance of quiescence and peripheral tolerance.
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Affiliation(s)
- Mohamed A ElTanbouly
- Department of Microbiology and Immunology, Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA
| | - Yanding Zhao
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, NH, USA
- Department of Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, NH, USA
| | - Elizabeth Nowak
- Department of Microbiology and Immunology, Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA
| | | | - Evelien Schaafsma
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, NH, USA
- Department of Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, NH, USA
| | | | - Sabrina Ceeraz
- Immunology Discovery, Janssen Research and Development LLC, Spring House, PA, USA
| | - J Louise Lines
- Department of Microbiology and Immunology, Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA
| | - Changwei Peng
- Division of Rheumatic and Autoimmune Diseases, Center for Immunology, University of Minnesota, Minneapolis, MN, USA
- The Center for Immunology, University of Minnesota, Minneapolis, MN, USA
| | | | - Xin Huang
- ImmuNext Corporation, Lebanon, NH, USA
| | - Maria Day
- ImmuNext Corporation, Lebanon, NH, USA
| | - Brent Koehn
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
| | - Sam W Lee
- Yale University School of Medicine, New Haven, CT, USA
| | - Milagros Silva Morales
- Division of Rheumatic and Autoimmune Diseases, Center for Immunology, University of Minnesota, Minneapolis, MN, USA
| | - Kristin A Hogquist
- Division of Rheumatic and Autoimmune Diseases, Center for Immunology, University of Minnesota, Minneapolis, MN, USA
- The Center for Immunology, University of Minnesota, Minneapolis, MN, USA
| | - Stephen C Jameson
- Division of Rheumatic and Autoimmune Diseases, Center for Immunology, University of Minnesota, Minneapolis, MN, USA
- The Center for Immunology, University of Minnesota, Minneapolis, MN, USA
| | - Daniel Mueller
- Division of Rheumatic and Autoimmune Diseases, Center for Immunology, University of Minnesota, Minneapolis, MN, USA
- The Center for Immunology, University of Minnesota, Minneapolis, MN, USA
| | | | - Bruce R Blazar
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
- Department of Medicine, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Chao Cheng
- Department of Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, NH, USA.
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Randolph J Noelle
- Department of Microbiology and Immunology, Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA.
- ImmuNext Corporation, Lebanon, NH, USA
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24
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Transforming Growth Factor-β Signaling in Immunity and Cancer. Immunity 2019; 50:924-940. [PMID: 30995507 DOI: 10.1016/j.immuni.2019.03.024] [Citation(s) in RCA: 1259] [Impact Index Per Article: 251.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 03/19/2019] [Accepted: 03/25/2019] [Indexed: 12/18/2022]
Abstract
Transforming growth factor (TGF)-β is a crucial enforcer of immune homeostasis and tolerance, inhibiting the expansion and function of many components of the immune system. Perturbations in TGF-β signaling underlie inflammatory diseases and promote tumor emergence. TGF-β is also central to immune suppression within the tumor microenvironment, and recent studies have revealed roles in tumor immune evasion and poor responses to cancer immunotherapy. Here, we present an overview of the complex biology of the TGF-β family and its context-dependent nature. Then, focusing on cancer, we discuss the roles of TGF-β signaling in distinct immune cell types and how this knowledge is being leveraged to unleash the immune system against the tumor.
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25
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Dehghanzad R, Pahlevan Kakhki M, Alikhah A, Sahraian MA, Behmanesh M. The Putative Association of TOB1-AS1 Long Non-coding RNA with Immune Tolerance: A Study on Multiple Sclerosis Patients. Neuromolecular Med 2019; 22:100-110. [PMID: 31482275 DOI: 10.1007/s12017-019-08567-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 08/21/2019] [Indexed: 11/30/2022]
Abstract
The hallmark of multiple sclerosis (MS) pathogenesis is the breakdown of peripheral tolerance in the immune system. However, its molecular mechanism is not completely understood. Since long non-coding RNAs (lncRNAs) has played important roles in regulation of immunological pathways, here, we evaluated the expression of a novel lncRNA, TOB1-AS1, and its putative associated coding genes in the mechanism of maintaining immune tolerance in peripheral blood of MS patients to assess their possible roles in MS pathogenesis. In this study, 39 MS patients and 32 healthy matched controls were recruited. Real-time PCR standard curve method was used to quantify transcript levels of TOB1-AS1, TOB1, SKP2, and TSG. In addition, the potential sex hormone receptor binding sites on target genes promoter were analyzed using JASPR software. This work demonstrates a negative correlation between TOB1-AS1 expression and EDSS of patients. Also, a robust dysregulation of co-expression of TOB1-AS1 lncRNA and the coding genes in MS patients compared to controls was observed. Such dysregulation in this pathway may be related to MS pathogenesis and response to interferon treatment.
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Affiliation(s)
- Reyhaneh Dehghanzad
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, P.O. Box: 14115-154, Tehran, Iran
| | - Majid Pahlevan Kakhki
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, P.O. Box: 14115-154, Tehran, Iran
| | - Asieh Alikhah
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, P.O. Box: 14115-154, Tehran, Iran
| | - Mohammad Ali Sahraian
- MS Research Center, Neuroscience Institute, Tehran University of Medical Science, Tehran, Iran
| | - Mehrdad Behmanesh
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, P.O. Box: 14115-154, Tehran, Iran.
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26
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Metabolic coordination of T cell quiescence and activation. Nat Rev Immunol 2019; 20:55-70. [DOI: 10.1038/s41577-019-0203-y] [Citation(s) in RCA: 223] [Impact Index Per Article: 44.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/15/2019] [Indexed: 02/07/2023]
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27
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Jiao H, Zang Y, Zhang M, Zhang Y, Wang Y, Wang K, Price RA, Li WD. Genome-Wide Interaction and Pathway Association Studies for Body Mass Index. Front Genet 2019; 10:404. [PMID: 31118946 PMCID: PMC6504780 DOI: 10.3389/fgene.2019.00404] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 04/12/2019] [Indexed: 11/24/2022] Open
Abstract
Objective: We investigated gene interactions (epistasis) for body mass index (BMI) in a European-American adult female cohort via genome-wide interaction analyses (GWIA) and pathway association analyses. Methods: Genome-wide pairwise interaction analyses were carried out for BMI in 493 extremely obese cases (BMI > 35 kg/m2) and 537 never-overweight controls (BMI < 25 kg/m2). To further validate the results, specific SNPs were selected based on the GWIA results for haplotype-based association studies. Pathway-based association analyses were performed using a modified Gene Set Enrichment Algorithm (GSEA) (GenGen program) to further explore BMI-related pathways using our genome wide association study (GWAS) data set, GIANT, ENGAGE, and DIAGRAM Consortia. Results: The EXOC4-1q23.1 interaction was associated with BMI, with the most significant epistasis between rs7800006 and rs10797020 (P = 2.63 × 10-11). In the pathway-based association analysis, Tob1 pathway showed the most significant association with BMI (empirical P < 0.001, FDR = 0.044, FWER = 0.040). These findings were further validated in different populations. Conclusion: Genome-wide pairwise SNP-SNP interaction and pathway analyses suggest that EXOC4 and TOB1-related pathways may contribute to the development of obesity.
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Affiliation(s)
- Hongxiao Jiao
- Research Center of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Yong Zang
- Department of Genetics, College of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Miaomiao Zhang
- Department of Genetics, College of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Yuan Zhang
- Department of Genetics, College of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Yaogang Wang
- College of Public Health, Tianjin Medical University, Tianjin, China
| | - Kai Wang
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
- Laboratory Medicine, Department of Pathology, University of Pennsylvania, Philadelphia, PA, United States
| | - R. Arlen Price
- Department of Psychiatry, Center for Neurobiology and Behavior, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States
| | - Wei-Dong Li
- Department of Genetics, College of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
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28
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Dirice E, Kahraman S, De Jesus DF, El Ouaamari A, Basile G, Baker RL, Yigit B, Piehowski PD, Kim MJ, Dwyer AJ, Ng RWS, Schuster C, Vethe H, Martinov T, Ishikawa Y, Teo AKK, Smith RD, Hu J, Haskins K, Serwold T, Qian WJ, Fife BT, Kissler S, Kulkarni RN. Increased β-cell proliferation before immune cell invasion prevents progression of type 1 diabetes. Nat Metab 2019; 1:509-518. [PMID: 31423480 PMCID: PMC6696912 DOI: 10.1038/s42255-019-0061-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Type 1 diabetes (T1D) is characterized by pancreatic islet infiltration by autoreactive immune cells and a near-total loss of β-cells1. Restoration of insulin-producing β-cells coupled with immunomodulation to suppress the autoimmune attack has emerged as a potential approach to counter T1D2-4. Here we report that enhancing β-cell mass early in life, in two models of female NOD mice, results in immunomodulation of T-cells, reduced islet infiltration and lower β-cell apoptosis, that together protect them from developing T1D. The animals displayed altered β-cell antigens, and islet transplantation studies showed prolonged graft survival in the NOD-LIRKO model. Adoptive transfer of splenocytes from the NOD-LIRKOs prevented development of diabetes in pre-diabetic NOD mice. A significant increase in the splenic CD4+CD25+FoxP3+ regulatory T-cell (Treg) population was observed to underlie the protected phenotype since Treg depletion rendered NOD-LIRKO mice diabetic. The increase in Tregs coupled with activation of TGF-β/SMAD3 signaling pathway in pathogenic T-cells favored reduced ability to kill β-cells. These data support a previously unidentified observation that initiating β-cell proliferation, alone, prior to islet infiltration by immune cells alters the identity of β-cells, decreases pathologic self-reactivity of effector cells and increases Tregs to prevent progression of T1D.
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Affiliation(s)
- Ercument Dirice
- Islet Cell and Regenerative Biology, Joslin Diabetes
Center, Boston, MA, USA
- Department of Medicine, Brigham and Women’s
Hospital, Harvard Medical School, Boston, MA, USA
| | - Sevim Kahraman
- Islet Cell and Regenerative Biology, Joslin Diabetes
Center, Boston, MA, USA
- Department of Medicine, Brigham and Women’s
Hospital, Harvard Medical School, Boston, MA, USA
| | - Dario F. De Jesus
- Islet Cell and Regenerative Biology, Joslin Diabetes
Center, Boston, MA, USA
- Department of Medicine, Brigham and Women’s
Hospital, Harvard Medical School, Boston, MA, USA
- Graduate Program in Areas of Basic and Applied Biology
(GABBA), Abel Salazar Biomedical Sciences Institute, University of Porto, Porto,
Portugal
| | - Abdelfattah El Ouaamari
- Islet Cell and Regenerative Biology, Joslin Diabetes
Center, Boston, MA, USA
- Department of Medicine, Brigham and Women’s
Hospital, Harvard Medical School, Boston, MA, USA
| | - Giorgio Basile
- Islet Cell and Regenerative Biology, Joslin Diabetes
Center, Boston, MA, USA
- Department of Medicine, Brigham and Women’s
Hospital, Harvard Medical School, Boston, MA, USA
| | - Rocky L. Baker
- Department of Immunology, School of Medicine, University of
Colorado, Aurora, CO, USA
| | - Burcu Yigit
- Division of Immunology, Beth Israel Deaconess Medical
Center, Harvard Medical School, Boston, MA, USA
| | - Paul D. Piehowski
- Biological Sciences Division, Pacific Northwest National
Laboratory, Richland, WA, USA
| | - Mi-Jeong Kim
- Section for Immunobiology, Joslin Diabetes Center, Boston,
MA, USA
| | - Alexander J. Dwyer
- University of Minnesota, Center for Immunology, Department
of Medicine, Minneapolis, MN, USA
| | - Raymond W. S. Ng
- Islet Cell and Regenerative Biology, Joslin Diabetes
Center, Boston, MA, USA
- Department of Medicine, Brigham and Women’s
Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Heidrun Vethe
- Islet Cell and Regenerative Biology, Joslin Diabetes
Center, Boston, MA, USA
| | - Tijana Martinov
- University of Minnesota, Center for Immunology, Department
of Medicine, Minneapolis, MN, USA
| | - Yuki Ishikawa
- Section for Immunobiology, Joslin Diabetes Center, Boston,
MA, USA
| | - Adrian Kee Keong Teo
- Islet Cell and Regenerative Biology, Joslin Diabetes
Center, Boston, MA, USA
- Department of Medicine, Brigham and Women’s
Hospital, Harvard Medical School, Boston, MA, USA
| | - Richard D. Smith
- Biological Sciences Division, Pacific Northwest National
Laboratory, Richland, WA, USA
| | - Jiang Hu
- Islet Cell and Regenerative Biology, Joslin Diabetes
Center, Boston, MA, USA
- Department of Medicine, Brigham and Women’s
Hospital, Harvard Medical School, Boston, MA, USA
| | - Kathryn Haskins
- Department of Immunology, School of Medicine, University of
Colorado, Aurora, CO, USA
| | - Thomas Serwold
- Section for Immunobiology, Joslin Diabetes Center, Boston,
MA, USA
| | - Wei-Jun Qian
- Biological Sciences Division, Pacific Northwest National
Laboratory, Richland, WA, USA
| | - Brian T. Fife
- University of Minnesota, Center for Immunology, Department
of Medicine, Minneapolis, MN, USA
| | - Stephan Kissler
- Section for Immunobiology, Joslin Diabetes Center, Boston,
MA, USA
| | - Rohit N. Kulkarni
- Islet Cell and Regenerative Biology, Joslin Diabetes
Center, Boston, MA, USA
- Department of Medicine, Brigham and Women’s
Hospital, Harvard Medical School, Boston, MA, USA
- Harvard Stem Cell Institute, Boston, MA, USA
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29
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Reprogramming the microenvironment with tumor-selective angiotensin blockers enhances cancer immunotherapy. Proc Natl Acad Sci U S A 2019; 116:10674-10680. [PMID: 31040208 DOI: 10.1073/pnas.1819889116] [Citation(s) in RCA: 134] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Cancer-associated fibroblasts (CAFs) can either suppress or support T lymphocyte activity, suggesting that CAFs may be reprogrammable to an immunosupportive state. Angiotensin receptor blockers (ARBs) convert myofibroblast CAFs to a quiescent state, but whether ARBs can reprogram CAFs to promote T lymphocyte activity and enhance immunotherapy is unknown. Moreover, ARB doses are limited by systemic adverse effects such as hypotension due to the importance of angiotensin signaling outside tumors. To enhance the efficacy and specificity of ARBs in cancer with the goal of revealing their effects on antitumor immunity, we developed ARB nanoconjugates that preferentially accumulate and act in tumors. We created a diverse library of hundreds of acid-degradable polymers and chemically linked ARBs to the polymer most sensitive to tumor pH. These tumor microenvironment-activated ARBs (TMA-ARBs) remain intact and inactive in circulation while achieving high concentrations in tumors, wherein they break down to active ARBs. This tumor-preferential activity enhances the CAF-reprogramming effects of ARBs while eliminating blood pressure-lowering effects. Notably, TMA-ARBs alleviate immunosuppression and improve T lymphocyte activity, enabling dramatically improved responses to immune-checkpoint blockers in mice with primary as well as metastatic breast cancer.
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30
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Robledo D, Gutiérrez AP, Barría A, Lhorente JP, Houston RD, Yáñez JM. Discovery and Functional Annotation of Quantitative Trait Loci Affecting Resistance to Sea Lice in Atlantic Salmon. Front Genet 2019; 10:56. [PMID: 30800143 PMCID: PMC6375901 DOI: 10.3389/fgene.2019.00056] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 01/23/2019] [Indexed: 12/22/2022] Open
Abstract
Sea lice (Caligus rogercresseyi) are ectoparasitic copepods which have a large negative economic and welfare impact in Atlantic salmon (Salmo salar) aquaculture, particularly in Chile. A multi-faceted prevention and control strategy is required to tackle lice, and selective breeding contributes via cumulative improvement of host resistance to the parasite. While host resistance has been shown to be heritable, little is yet known about the individual loci that contribute to this resistance, the potential underlying genes, and their mechanisms of action. In this study we took a multifaceted approach to identify and characterize quantitative trait loci (QTL) affecting host resistance in a population of 2,688 Caligus-challenged Atlantic salmon post-smolts from a commercial breeding program. We used low and medium density genotyping with imputation to collect genome-wide SNP marker data for all animals. Moderate heritability estimates of 0.28 and 0.24 were obtained for lice density (as a measure of host resistance) and growth during infestation, respectively. Three QTL explaining between 7 and 13% of the genetic variation in resistance to sea lice (as represented by the traits of lice density) were detected on chromosomes 3, 18, and 21. Characterisation of these QTL regions was undertaken using RNA sequencing and pooled whole genome sequencing data. This resulted in the identification of a shortlist of potential underlying causative genes, and candidate functional mutations for further study. For example, candidates within the chromosome 3 QTL include a putative premature stop mutation in TOB1 (an anti-proliferative transcription factor involved in T cell regulation) and an uncharacterized protein which showed significant differential allelic expression (implying the existence of a cis-acting regulatory mutation). While host resistance to sea lice is polygenic in nature, the results of this study highlight significant QTL regions together explaining between 7 and 13 % of the heritability of the trait. Future investigation of these QTL may enable improved knowledge of the functional mechanisms of host resistance to sea lice, and incorporation of functional variants to improve genomic selection accuracy.
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Affiliation(s)
- Diego Robledo
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Edinburgh, United Kingdom
| | - Alejandro P. Gutiérrez
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Edinburgh, United Kingdom
| | - Agustín Barría
- Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santiago, Chile
| | | | - Ross D. Houston
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Edinburgh, United Kingdom
| | - José M. Yáñez
- Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santiago, Chile
- Núcleo Milenio INVASAL, Concepción, Chile
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31
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Tu E, Chia CPZ, Chen W, Zhang D, Park SA, Jin W, Wang D, Alegre ML, Zhang YE, Sun L, Chen W. T Cell Receptor-Regulated TGF-β Type I Receptor Expression Determines T Cell Quiescence and Activation. Immunity 2019; 48:745-759.e6. [PMID: 29669252 DOI: 10.1016/j.immuni.2018.03.025] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 01/16/2018] [Accepted: 03/22/2018] [Indexed: 12/12/2022]
Abstract
It is unclear how quiescence is enforced in naive T cells, but activation by foreign antigens and self-antigens is allowed, despite the presence of inhibitory signals. We showed that active transforming growth factor β (TGF-β) signaling was present in naive T cells, and T cell receptor (TCR) engagement reduced TGF-β signaling during T cell activation by downregulating TGF-β type 1 receptor (TβRI) through activation of caspase recruitment domain-containing protein 11 (CARD11) and nuclear factor κB (NF-κB). TGF-β prevented TCR-mediated TβRI downregulation, but this was abrogated by interleukin-6 (IL-6). Mitigation of TCR-mediated TβRI downregulation through overexpression of TβRI in naive and activated T cells rendered T cells less responsive and suppressed autoimmunity. Naive T cells in autoimmune patients exhibited reduced TβRI expression and increased TCR-driven proliferation compared to healthy subjects. Thus, TCR-mediated regulation of TβRI-TGF-β signaling acts as a crucial criterion to determine T cell quiescence and activation.
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Affiliation(s)
- Eric Tu
- Mucosal Immunology Section, NIDCR, NIH, Bethesda, MD 20892, USA
| | - Cheryl P Z Chia
- Mucosal Immunology Section, NIDCR, NIH, Bethesda, MD 20892, USA
| | - Weiwei Chen
- Department of Rheumatology and Immunology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Dunfang Zhang
- Mucosal Immunology Section, NIDCR, NIH, Bethesda, MD 20892, USA
| | - Sang A Park
- Mucosal Immunology Section, NIDCR, NIH, Bethesda, MD 20892, USA
| | - Wenwen Jin
- Mucosal Immunology Section, NIDCR, NIH, Bethesda, MD 20892, USA
| | - Dandan Wang
- Department of Rheumatology and Immunology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | | | - Ying E Zhang
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, NCI, NIH, Bethesda, MD 20892, USA
| | - Lingyun Sun
- Department of Rheumatology and Immunology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.
| | - WanJun Chen
- Mucosal Immunology Section, NIDCR, NIH, Bethesda, MD 20892, USA.
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32
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Damodaran K, Venkatachalapathy S, Alisafaei F, Radhakrishnan AV, Sharma Jokhun D, Shenoy VB, Shivashankar GV. Compressive force induces reversible chromatin condensation and cell geometry-dependent transcriptional response. Mol Biol Cell 2018; 29:3039-3051. [PMID: 30256731 PMCID: PMC6333178 DOI: 10.1091/mbc.e18-04-0256] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Fibroblasts exhibit heterogeneous cell geometries in tissues and integrate both mechanical and biochemical signals in their local microenvironment to regulate genomic programs via chromatin remodelling. While in connective tissues fibroblasts experience tensile and compressive forces (CFs), the role of compressive forces in regulating cell behavior and, in particular, the impact of cell geometry in modulating transcriptional response to such extrinsic mechanical forces is unclear. Here we show that CF on geometrically well-defined mouse fibroblast cells reduces actomyosin contractility and shuttles histone deacetylase 3 (HDAC3) into the nucleus. HDAC3 then triggers an increase in the heterochromatin content by initiating removal of acetylation marks on the histone tails. This suggests that, in response to CF, fibroblasts condense their chromatin and enter into a transcriptionally less active and quiescent states as also revealed by transcriptome analysis. On removal of CF, the alteration in chromatin condensation was reversed. We also present a quantitative model linking CF-dependent changes in actomyosin contractility leading to chromatin condensation. Further, transcriptome analysis also revealed that the transcriptional response of cells to CF was geometry dependent. Collectively, our results suggest that CFs induce chromatin condensation and geometry-dependent differential transcriptional response in fibroblasts that allows maintenance of tissue homeostasis.
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Affiliation(s)
- Karthik Damodaran
- Mechanobiology Institute and Department of Biological Sciences, National University of Singapore, 117411, Singapore
| | - Saradha Venkatachalapathy
- Mechanobiology Institute and Department of Biological Sciences, National University of Singapore, 117411, Singapore
| | - Farid Alisafaei
- Center for Engineering Mechanobiology, University of Pennsylvania, Philadelphia, PA 19104
| | - A V Radhakrishnan
- Mechanobiology Institute and Department of Biological Sciences, National University of Singapore, 117411, Singapore
| | - Doorgesh Sharma Jokhun
- Mechanobiology Institute and Department of Biological Sciences, National University of Singapore, 117411, Singapore
| | - Vivek B Shenoy
- Center for Engineering Mechanobiology, University of Pennsylvania, Philadelphia, PA 19104
| | - G V Shivashankar
- Mechanobiology Institute and Department of Biological Sciences, National University of Singapore, 117411, Singapore.,FIRC Institute for Molecular Oncology (IFOM), 20139 Milan, Italy
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Ge Y, Li J, Hao Y, Hu Y, Chen D, Wu B, Fang F. MicroRNA-543 functions as an osteogenesis promoter in human periodontal ligament-derived stem cells by inhibiting transducer of ERBB2, 2. J Periodontal Res 2018; 53:832-841. [PMID: 29851072 DOI: 10.1111/jre.12572] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/20/2018] [Indexed: 12/26/2022]
Abstract
BACKGROUND AND OBJECTIVE Previous research has indicated that altered expression of microRNAs (miRNAs) is in connection with osteogenesis of human periodontal ligament-derived stem cells (hPDLSCs). We investigated the mechanisms by which miR-543 promotes osteogenic differentiation of hPDLSCs. MATERIAL AND METHODS First, the expression of miR-543 in hPDLSCs cultured with or without an osteogenic inductive cocktail was explored. Then, the function of miR-543 during osteogenesis of hPDLSCs was investigated by overexpressing and inhibiting miR-543. Next, 3 databases were used to predict target genes of miR-543 and a luciferase report was used to validate the direct regulation of miR-543 on the target gene. Further, a rescue experiment using co-transfection of miR-543 mimic and target mimic was performed to evaluate whether overexpressing the target gene could partly rescue the efficiency of overexpressing miR-543 on osteogenesis in hPDLSCs. RESULTS miR-543 was upregulated during osteogenic differentiation of hPDLSCs. Functional experiments showed that overexpressing miR-543 could enhance osteogenesis, while inhibiting miR-543 resulted in reduced formation of mineralized nodules. The transducer of ERBB2, 2 (TOB2) was identified as a target gene of miR-543 and luciferase report revealed that miR-543 interacts directly with the 3'-untranslated repeat sequence of TOB2 mRNA. Overexpression of miR-543 inhibited the expression of TOB2 in both mRNA and protein levels while inhibiting miR-543 increased. Furthermore, the rescue experiment confirmed the promotional role of miR-543 TOB2 expression could be abrogated by overexpressing TOB2, which also had the effect of reducing osteogenic differentiation. CONCLUSION Our research confirmed that miR-543 is a promoter of osteogenesis in hPDLSCs, acting by inhibiting its target gene TOB2, which suggests that miR-543 may be a potential therapy for bone loss in periodontitis.
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Affiliation(s)
- Y Ge
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - J Li
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Y Hao
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Y Hu
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - D Chen
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - B Wu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - F Fang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Wang H, Hao H, Guo H, Wang Y, Zhang X, Xu L, Yu J. Association between the SNPs of the TOB1 gene and gastric cancer risk in the Chinese Han population of northeast China. J Cancer 2018; 9:1371-1378. [PMID: 29721046 PMCID: PMC5929081 DOI: 10.7150/jca.23805] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Accepted: 01/21/2018] [Indexed: 01/14/2023] Open
Abstract
The TOB1 (ErbB-2,1) gene is an anti-proliferative factor that has the potential to regulate cell growth and encodes a member of the transducer of erbB-2/B-cell translocation gene protein. The association between the polymorphisms of the TOB1 gene and gastric cancer (GC) risk is still unclear. In this study, 506 GC cases and 548 healthy controls (HCs) were collected to evaluate the association between the eleven SNPs (rs35220381, rs12950561, rs7221352, rs61482741, rs9303568, rs34700818, rs12949115, rs9903822, rs12601477, rs11656976 and rs4626) of the TOB1 gene and GC risk in the population of northeast China. The results showed that there were significant associations of haplotype GCCTTGC, haplotype ATCTTGG, and haplotype GCCACGC with GC risk (P < 0.05, P < 0.001, and P <0.001, respectively). The association between rs12601477 GA+AA genotypes and GC risk was significant among individuals older than 58 (adjusted OR=1.53, 95% CI=1.05-2.22, P< 0.05). The association between rs4626 AG+GG genotypes and GC risk was significant among individuals older than 58 (adjusted OR=1.54, 95% CI = 1.03-2.28, P<0.05). The rs34700818 CT+TT genotypes were associated with a significantly increased risk of T3-T4 (CT+TT vs CC, adjusted OR=1.71, 95% CI= 1.01-2.88, P<0.05) and TNM stage II (CT+TT vs CC, adjusted OR=2.40, 95% CI =1.27-4.52, P<0.01). The rs61482741 CG+GG genotypes were also associated with a significantly increased risk of T3-T4 (CG+GG vs CC, adjusted OR=1.71, 95% CI = 1.01-2.88, P<0.05) and TNM stage II (CG+GG vs CC, adjusted OR=2.40, 95% CI=1.27-4.52, P<0.01). The results suggest that four SNPs (rs12601477, rs4626, rs34700818 and rs61482741) of the TOB1 gene play an important role in the occurrence and development of GC in the Chinese Han population of northeast China.
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Affiliation(s)
- Hui Wang
- Scientific Research Centre, the Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China.,Department of Blood Transfusion, the Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Huiting Hao
- Scientific Research Centre, the Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China.,The clinical laboratory, the Tumor Hospital Affiliated to Harbin Medical University, Harbin 150081, China
| | - Haonan Guo
- Scientific Research Centre, the Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Yuanyuan Wang
- Scientific Research Centre, the Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Xuelong Zhang
- Laboratory of Medical Genetics, Harbin Medical University, Harbin 150081, China
| | - Lidan Xu
- Laboratory of Medical Genetics, Harbin Medical University, Harbin 150081, China
| | - Jingcui Yu
- Scientific Research Centre, the Second Affiliated Hospital of Harbin Medical University, Harbin 150081, China
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35
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RNA-binding proteins control gene expression and cell fate in the immune system. Nat Immunol 2018; 19:120-129. [PMID: 29348497 DOI: 10.1038/s41590-017-0028-4] [Citation(s) in RCA: 122] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 11/29/2017] [Indexed: 12/19/2022]
Abstract
RNA-binding proteins (RBPs) are essential for the development and function of the immune system. They interact dynamically with RNA to control its biogenesis and turnover by transcription-dependent and transcription-independent mechanisms. In this Review, we discuss the molecular mechanisms by which RBPs allow gene expression changes to occur at different speeds and to varying degrees, and which RBPs regulate the diversity of the transcriptome and proteome. These proteins are nodes for integration of transcriptional and signaling networks and are intimately linked to intermediary metabolism. They are essential components of regulatory feedback mechanisms that maintain immune tolerance and limit inflammation. The role of RBPs in malignancy and autoimmunity has led to their emergence as targets for the development of new therapeutic modalities.
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Goldshtein A, Zerbib SM, Omar I, Cohen-Daniel L, Popkin D, Berger M. Loss of T-cell quiescence by targeting Slfn2 prevents the development and progression of T-ALL. Oncotarget 2018; 7:46835-46847. [PMID: 27206675 PMCID: PMC5216906 DOI: 10.18632/oncotarget.9390] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 04/26/2016] [Indexed: 01/08/2023] Open
Abstract
T-cell acute lymphoblastic leukemia (T-ALL) is an aggressive malignancy of thymocytes. Despite significant improvement in the treatment of T-ALL, approximately 20% of children and most adults undergo relapse. Previous findings demonstrated that loss of T-cell quiescence due to a mutation in the Slfn2 gene (elektra) leads to acquisition of an aberrant developmental program by which T-cells lose their renewal capabilities and undergo apoptosis. Here we show that the elektra mutation in Slfn2 completely prevents a severe lymphoproliferative disease caused by overexpression of BCL2 in combination with Fas deficiency in mice. Moreover, Slfn2 impaired-function protects mice from experimental disease similar to human T-ALL by severely impairing the proliferation potential and survival of leukemic T-cells, partially by activation of the p53 tumor suppressor protein. Our study suggest that in certain malignancies, such as T-ALL, a novel therapeutic strategy may be applied by imposing aberrant development of leukemic cells. Furthermore, as the elektra mutation in Slfn2 seems to impair only T-cells and monocytes, targeting Slfn2 is expected to be harmless to other cell types, and thereby could be a promising target for treating malignancies. Together our results demonstrate the potential of targeting Slfn2 and its human paralog for T-ALL treatment.
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Affiliation(s)
- Aviya Goldshtein
- The Lautenberg Center for Immunology and Cancer Research, The Biomedical Research Institute Israel-Canada of the Faculty of Medicine, The Hebrew University Hadassah Medical School, Jerusalem, Israel
| | - Shani Mistriel Zerbib
- The Lautenberg Center for Immunology and Cancer Research, The Biomedical Research Institute Israel-Canada of the Faculty of Medicine, The Hebrew University Hadassah Medical School, Jerusalem, Israel
| | - Ibrahim Omar
- The Lautenberg Center for Immunology and Cancer Research, The Biomedical Research Institute Israel-Canada of the Faculty of Medicine, The Hebrew University Hadassah Medical School, Jerusalem, Israel
| | - Leonor Cohen-Daniel
- The Lautenberg Center for Immunology and Cancer Research, The Biomedical Research Institute Israel-Canada of the Faculty of Medicine, The Hebrew University Hadassah Medical School, Jerusalem, Israel
| | - Daniel Popkin
- Department of Dermatology, Case Western Reserve University, Cleveland, OH, USA
| | - Michael Berger
- The Lautenberg Center for Immunology and Cancer Research, The Biomedical Research Institute Israel-Canada of the Faculty of Medicine, The Hebrew University Hadassah Medical School, Jerusalem, Israel
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Wang H, Cui Y, Luan J, Zhou X, Li C, Li H, Shi L, Han J. MiR-5100 promotes osteogenic differentiation by targeting Tob2. J Bone Miner Metab 2017; 35:608-615. [PMID: 27873073 DOI: 10.1007/s00774-016-0799-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 10/03/2016] [Indexed: 01/05/2023]
Abstract
MicroRNAs have emerged as pivotal regulators in various physiological and pathological processes, including osteogenesis. Here we discuss the contribution of miR-5100 to osteoblast differentiation and mineralization. We found that miR-5100 was upregulated during osteoblast differentiation in ST2 and MC3T3-E1 cells. Next, we verified that miR-5100 can promote osteogenic differentiation with gain-of-function and loss-of-function experiments. Target prediction analysis and experimental validation demonstrated that Tob2, which acts as a negative regulator of osteogenesis, was negatively regulated by miR-5100. Furthermore, we confirmed that the important bone-related transcription factor osterix, which can be degraded by binding to Tob2, was influenced by miR-5100 during osteoblast differentiation. Collectively, our results revealed a new molecular mechanism that fine-tunes osteoblast differentiation through miR-5100/Tob2/osterix networks.
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Affiliation(s)
- Huaxin Wang
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
- Shandong Medical Biotechnological Center, Key Laboratory for Biotech Drugs of the Ministry of Health, Shandong Academy of Medical Sciences, Jinan, China
| | - Yazhou Cui
- Shandong Medical Biotechnological Center, Key Laboratory for Biotech Drugs of the Ministry of Health, Shandong Academy of Medical Sciences, Jinan, China
| | - Jing Luan
- Shandong Medical Biotechnological Center, Key Laboratory for Biotech Drugs of the Ministry of Health, Shandong Academy of Medical Sciences, Jinan, China
| | - Xiaoyan Zhou
- Shandong Medical Biotechnological Center, Key Laboratory for Biotech Drugs of the Ministry of Health, Shandong Academy of Medical Sciences, Jinan, China
| | - Chengzhi Li
- Shandong Medical Biotechnological Center, Key Laboratory for Biotech Drugs of the Ministry of Health, Shandong Academy of Medical Sciences, Jinan, China
| | - Haiying Li
- Shandong Medical Biotechnological Center, Key Laboratory for Biotech Drugs of the Ministry of Health, Shandong Academy of Medical Sciences, Jinan, China
| | - Liang Shi
- Shandong Medical Biotechnological Center, Key Laboratory for Biotech Drugs of the Ministry of Health, Shandong Academy of Medical Sciences, Jinan, China
| | - Jinxiang Han
- Shandong Medical Biotechnological Center, Key Laboratory for Biotech Drugs of the Ministry of Health, Shandong Academy of Medical Sciences, Jinan, China.
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38
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MicroRNA-590 promotes pathogenic Th17 cell differentiation through targeting Tob1 and is associated with multiple sclerosis. Biochem Biophys Res Commun 2017; 493:901-908. [PMID: 28947212 DOI: 10.1016/j.bbrc.2017.09.123] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Accepted: 09/22/2017] [Indexed: 12/21/2022]
Abstract
Although the exact pathogenesis of multiple sclerosis (MS) remains largely unclear, Th17 cells have been suggested as an essential regulator in the disease induction. Emerging evidence have demonstrated that noncoding RNAs, especially microRNAs (miRs), play a crucial role in modulation of Th17 cell differentiation and autoimmune disease development. Here, we revealed that miR-590 expression was markedly increased in periphery blood mononuclear cells (PBMC) and cerebrospinal fluid (CSF) of patients with MS, and positively correlated with the disease severity. Th17 cells were found to express high level of miR-590. We further demonstrated that miR-590 was able to facilitate Th17 differentiation and pathogenicity. Notably, we identified that miR-590 directly targeted Tob1, a known suppressor of Th17 differentiation. The expression level of Tob1 was observed to be significantly decreased in PBMC of patients with MS. Our finding suggest that miR-590 could enhance pathogenic Th17 differentiation in MS and augment inflammation in central nervous system (CNS) through inhibiting Tob1.
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Omar I, Rom O, Aviram M, Cohen-Daniel L, Gebre AK, Parks JS, Berger M. Slfn2 mutation-induced loss of T-cell quiescence leads to elevated de novo sterol synthesis. Immunology 2017; 152:484-493. [PMID: 28672048 DOI: 10.1111/imm.12785] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 06/12/2017] [Accepted: 06/22/2017] [Indexed: 01/04/2023] Open
Abstract
Acquisition of a 'quiescence programme' by naive T cells is important to provide a stress-free environment and resistance to apoptosis while preserving their responsiveness to activating stimuli. Therefore, the survival and proper function of naive T cells depends on their ability to maintain quiescence. Recently we demonstrated that by preventing chronic unresolved endoplasmic reticulum (ER) stress, Schlafen2 (Slfn2) maintains a stress-free environment to conserve a pool of naive T cells ready to respond to a microbial invasion. These findings strongly suggest an intimate association between quiescence and stress signalling. However, the connection between ER stress conditions and loss of T-cell quiescence is unknown. Here we demonstrate that homeostasis of cholesterol and lipids, is disrupted in T cells and monocytes from Slfn2-mutant, elektra, mice with higher levels of lipid rafts and lipid droplets found in these cells. Moreover, elektra T cells had elevated levels of free cholesterol and cholesteryl ester due to increased de novo synthesis and higher levels of the enzyme HMG-CoA reductase. As cholesterol plays an important role in the transition of T cells from resting to active state, and ER regulates cholesterol and lipid synthesis, we suggest that regulation of cholesterol levels through the prevention of ER stress is an essential component of the mechanism by which Slfn2 regulates quiescence.
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Affiliation(s)
- Ibrahim Omar
- The Lautenberg Centre for Immunology and Cancer Research, The Biomedical Research Institute Israel Canada of the Faculty of Medicine, The Hebrew University Hadassah Medical School Jerusalem, Jerusalem, Israel
| | - Oren Rom
- The Lipid Research Laboratory, Rambam Health Care Campus, The Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa, Israel
| | - Michael Aviram
- The Lipid Research Laboratory, Rambam Health Care Campus, The Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa, Israel
| | - Leonor Cohen-Daniel
- The Lautenberg Centre for Immunology and Cancer Research, The Biomedical Research Institute Israel Canada of the Faculty of Medicine, The Hebrew University Hadassah Medical School Jerusalem, Jerusalem, Israel
| | - Abraham K Gebre
- Section on Molecular Medicine, Department of Internal Medicine, Medical Center Blvd, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - John S Parks
- Section on Molecular Medicine, Department of Internal Medicine, Medical Center Blvd, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Michael Berger
- The Lautenberg Centre for Immunology and Cancer Research, The Biomedical Research Institute Israel Canada of the Faculty of Medicine, The Hebrew University Hadassah Medical School Jerusalem, Jerusalem, Israel
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40
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Das S, Sarkar D, Das B. The interplay between transcription and mRNA degradation in Saccharomyces cerevisiae. MICROBIAL CELL 2017; 4:212-228. [PMID: 28706937 PMCID: PMC5507684 DOI: 10.15698/mic2017.07.580] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The cellular transcriptome is shaped by both the rates of mRNA synthesis in the nucleus and mRNA degradation in the cytoplasm under a specified condition. The last decade witnessed an exciting development in the field of post-transcriptional regulation of gene expression which underscored a strong functional coupling between the transcription and mRNA degradation. The functional integration is principally mediated by a group of specialized promoters and transcription factors that govern the stability of their cognate transcripts by “marking” them with a specific factor termed “coordinator.” The “mark” carried by the message is later decoded in the cytoplasm which involves the stimulation of one or more mRNA-decay factors, either directly by the “coordinator” itself or in an indirect manner. Activation of the decay factor(s), in turn, leads to the alteration of the stability of the marked message in a selective fashion. Thus, the integration between mRNA synthesis and decay plays a potentially significant role to shape appropriate gene expression profiles during cell cycle progression, cell division, cellular differentiation and proliferation, stress, immune and inflammatory responses, and may enhance the rate of biological evolution.
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Affiliation(s)
- Subhadeep Das
- Department of Life Science and Biotechnology, Jadavpur University, Kolkata, India
| | - Debasish Sarkar
- Present Address: Laboratory of Molecular Genetics, Wadsworth Center, New York State Department of Health, Albany, NY 12201-2002, USA
| | - Biswadip Das
- Department of Life Science and Biotechnology, Jadavpur University, Kolkata, India
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41
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Sanjabi S, Oh SA, Li MO. Regulation of the Immune Response by TGF-β: From Conception to Autoimmunity and Infection. Cold Spring Harb Perspect Biol 2017; 9:cshperspect.a022236. [PMID: 28108486 DOI: 10.1101/cshperspect.a022236] [Citation(s) in RCA: 349] [Impact Index Per Article: 49.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Transforming growth factor β (TGF-β) is a pleiotropic cytokine involved in both suppressive and inflammatory immune responses. After 30 years of intense study, we have only begun to elucidate how TGF-β alters immunity under various conditions. Under steady-state conditions, TGF-β regulates thymic T-cell selection and maintains homeostasis of the naïve T-cell pool. TGF-β inhibits cytotoxic T lymphocyte (CTL), Th1-, and Th2-cell differentiation while promoting peripheral (p)Treg-, Th17-, Th9-, and Tfh-cell generation, and T-cell tissue residence in response to immune challenges. Similarly, TGF-β controls the proliferation, survival, activation, and differentiation of B cells, as well as the development and functions of innate cells, including natural killer (NK) cells, macrophages, dendritic cells, and granulocytes. Collectively, TGF-β plays a pivotal role in maintaining peripheral tolerance against self- and innocuous antigens, such as food, commensal bacteria, and fetal alloantigens, and in controlling immune responses to pathogens.
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Affiliation(s)
- Shomyseh Sanjabi
- Institute of Virology and Immunology, Gladstone Institutes, San Francisco, California 94158.,Department of Microbiology and Immunology, University of California, San Francisco, California 94143
| | - Soyoung A Oh
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, New York 10065
| | - Ming O Li
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, New York 10065
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42
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Zhang S, Yu N, Wang L, Liu Y, Kong Y, Liu J, Xie Y. Prox1 represses IL-2 gene expression by interacting with NFAT2. Oncotarget 2017; 8:69422-69434. [PMID: 29050214 PMCID: PMC5642489 DOI: 10.18632/oncotarget.17278] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 04/11/2017] [Indexed: 01/08/2023] Open
Abstract
Interleukin-2 (IL-2) is critical for T lymphocyte activation and regulated by many transcriptional factors. Prospero-related homeobox 1 (Prox1) is a multifunctional transcription factor, which can work as either a transcriptional activator or repressor depending on the cellular and developmental environment. We previously reported the Prox1 expression in T cells, raising the possibility of Prox1 involvement in the regulation of T cell function and IL-2 production. Here we demonstrated that the Prox1 expression in CD4+ T cells was downregulated by T cell receptor (TCR) activation. Overexpression of Prox1 attenuated IL-2 production, while knockdown of endogenous Prox1 by small interfering RNA increased IL-2 expression. Mechanistically, we showed that Prox1 inhibited the IL-2 promoter activity, and associated with the minimal IL-2 promoter. Prox1 repressed the nuclear factor of activated T cells 2 (NFAT2)-dependent transactivation of IL-2 gene by physically binding to NFAT2. The N-terminal region of Prox1 was essential for the binding and repression. In summary, our findings established Prox1 as a negative regulator in IL-2 gene expression through the direct interaction with NFAT2.
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Affiliation(s)
- Shujie Zhang
- Eye Institute, Eye and ENT Hospital, Shanghai Medical College, Fudan University, Shanghai 200031, China.,Key Laboratory of Medical Molecular Virology (MOE and MOH), Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Ning Yu
- Department of Dermatology, Shanghai Skin Disease Hospital, Shanghai 200050, China
| | - Linfang Wang
- Key Laboratory of Medical Molecular Virology (MOE and MOH), Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Yanfeng Liu
- Key Laboratory of Medical Molecular Virology (MOE and MOH), Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Yuying Kong
- Key Laboratory of Medical Molecular Virology (MOE and MOH), Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Jing Liu
- Key Laboratory of Medical Molecular Virology (MOE and MOH), Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Youhua Xie
- Key Laboratory of Medical Molecular Virology (MOE and MOH), Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, China
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43
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Panagoulias I, Georgakopoulos T, Aggeletopoulou I, Agelopoulos M, Thanos D, Mouzaki A. Transcription Factor Ets-2 Acts as a Preinduction Repressor of Interleukin-2 (IL-2) Transcription in Naive T Helper Lymphocytes. J Biol Chem 2016; 291:26707-26721. [PMID: 27815505 DOI: 10.1074/jbc.m116.762179] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 11/01/2016] [Indexed: 11/06/2022] Open
Abstract
IL-2 is the first cytokine produced when naive T helper (Th) cells are activated and differentiate into dividing pre-Th0 proliferating precursors. IL-2 expression is blocked in naive, but not activated or memory, Th cells by the transcription factor Ets-2 that binds to the antigen receptor response element (ARRE)-2 of the proximal IL-2 promoter. Ets-2 acts as an independent preinduction repressor in naive Th cells and does not interact physically with the transcription factor NFAT (nuclear factor of activated T-cells) that binds to the ARRE-2 in activated Th cells. In naive Th cells, Ets-2 mRNA expression, Ets-2 protein levels, and Ets-2 binding to ARRE-2 decrease upon cell activation followed by the concomitant expression of IL-2. Cyclosporine A stabilizes Ets-2 mRNA and protein when the cells are activated. Ets-2 silences directly constitutive or induced IL-2 expression through the ARRE-2. Conversely, Ets-2 silencing allows for constitutive IL-2 expression in unstimulated cells. Ets-2 binding to ARRE-2 in chromatin is stronger in naive compared with activated or memory Th cells; in the latter, Ets-2 participates in a change of the IL-2 promoter architecture, possibly to facilitate a quick response when the cells re-encounter antigen. We propose that Ets-2 expression and protein binding to the ARRE-2 of the IL-2 promoter are part of a strictly regulated process that results in a physiological transition of naive Th cells to Th0 cells upon antigenic stimulation. Malfunction of such a repression mechanism at the molecular level could lead to a disturbance of later events in Th cell plasticity, leading to autoimmune diseases or other pathological conditions.
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Affiliation(s)
- Ioannis Panagoulias
- From the Division of Hematology, Department of Internal Medicine, Faculty of Medicine, University of Patras, Patras GR-26500, Greece and
| | - Tassos Georgakopoulos
- From the Division of Hematology, Department of Internal Medicine, Faculty of Medicine, University of Patras, Patras GR-26500, Greece and
| | - Ioanna Aggeletopoulou
- From the Division of Hematology, Department of Internal Medicine, Faculty of Medicine, University of Patras, Patras GR-26500, Greece and
| | - Marios Agelopoulos
- the Institute of Molecular Biology, Genetics and Biotechnology, Biomedical Research Foundation, Academy of Athens, Athens GR-11527, Greece
| | - Dimitris Thanos
- the Institute of Molecular Biology, Genetics and Biotechnology, Biomedical Research Foundation, Academy of Athens, Athens GR-11527, Greece
| | - Athanasia Mouzaki
- From the Division of Hematology, Department of Internal Medicine, Faculty of Medicine, University of Patras, Patras GR-26500, Greece and
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44
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Garaud S, Roufosse F, De Silva P, Gu-Trantien C, Lodewyckx JN, Duvillier H, Dedeurwaerder S, Bizet M, Defrance M, Fuks F, Bex F, Willard-Gallo K. FOXP1 is a regulator of quiescence in healthy human CD4+T cells and is constitutively repressed in T cells from patients with lymphoproliferative disorders. Eur J Immunol 2016; 47:168-179. [DOI: 10.1002/eji.201646373] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 09/07/2016] [Accepted: 11/03/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Soizic Garaud
- Molecular Immunology Unit; Institut Jules Bordet; Université Libre de Bruxelles; Brussels Belgium
| | - Florence Roufosse
- Department of Internal Medicine; Hôpital Erasme; Université Libre de Bruxelles; Brussels Belgium
- Institute for Medical Immunology; Université Libre de Bruxelles; Gosselies Belgium
| | - Pushpamali De Silva
- Molecular Immunology Unit; Institut Jules Bordet; Université Libre de Bruxelles; Brussels Belgium
| | - Chunyan Gu-Trantien
- Molecular Immunology Unit; Institut Jules Bordet; Université Libre de Bruxelles; Brussels Belgium
| | - Jean-Nicolas Lodewyckx
- Molecular Immunology Unit; Institut Jules Bordet; Université Libre de Bruxelles; Brussels Belgium
| | - Hugues Duvillier
- Flow Cytometry Core Facility; Institut Jules Bordet; Université Libre de Bruxelles; Brussels Belgium
- Molecular Immunology Unit; Institut Jules Bordet; Université Libre de Bruxelles; Brussels Belgium
| | - Sarah Dedeurwaerder
- Laboratory of Cancer Epigenetics; Faculty of Medicine; Université Libre de Bruxelles; Brussels Belgium
| | - Martin Bizet
- Laboratory of Cancer Epigenetics; Faculty of Medicine; Université Libre de Bruxelles; Brussels Belgium
| | - Matthieu Defrance
- Laboratory of Cancer Epigenetics; Faculty of Medicine; Université Libre de Bruxelles; Brussels Belgium
| | - François Fuks
- Laboratory of Cancer Epigenetics; Faculty of Medicine; Université Libre de Bruxelles; Brussels Belgium
| | - Françoise Bex
- Institut de Recherches Microbiologiques J-M Wiame; Université Libre de Bruxelles; Brussels Belgium
| | - Karen Willard-Gallo
- Molecular Immunology Unit; Institut Jules Bordet; Université Libre de Bruxelles; Brussels Belgium
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45
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Puck A, Hopf S, Modak M, Majdic O, Cejka P, Blüml S, Schmetterer K, Arnold-Schrauf C, Gerwien JG, Frederiksen KS, Thell E, Leitner J, Steinberger P, Aigner R, Seyerl-Jiresch M, Zlabinger GJ, Stöckl J. The soluble cytoplasmic tail of CD45 (ct-CD45) in human plasma contributes to keep T cells in a quiescent state. Eur J Immunol 2016; 47:193-205. [PMID: 27718235 PMCID: PMC5244668 DOI: 10.1002/eji.201646405] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 08/23/2016] [Accepted: 10/05/2016] [Indexed: 01/22/2023]
Abstract
The cytoplasmic tail of CD45 (ct‐CD45) is proteolytically cleaved and released upon activation of human phagocytes. It acts on T cells as an inhibitory, cytokine‐like factor in vitro. Here, we show that ct‐CD45 is abundant in human peripheral blood plasma from healthy adults compared with plasma derived from umbilical cord blood and plasma from patients with rheumatoid arthritis or systemic lupus erythematosus. Plasma depleted of ct‐CD45 enhanced T‐cell proliferation, while addition of exogenous ct‐CD45 protein inhibited proliferation and reduced cytokine production of human T lymphocytes in response to TCR signaling. Inhibition of T‐cell proliferation by ct‐CD45 was overcome by costimulation via CD28. T‐cell activation in the presence of ct‐CD45 was associated with an upregulation of the quiescence factors Schlafen family member 12 (SLFN12) and Krueppel‐like factor 2 (KLF2) as well as of the cyclin‐dependent kinase (CDK) inhibitor p27kip1. In contrast, positive regulators of the cell cycle such as cyclin D2 and D3 as well as CDK2 and CDK4 were found to be downregulated in response to ct‐CD45. In summary, we demonstrate that ct‐CD45 is present in human plasma and sets the threshold of T‐cell activation.
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Affiliation(s)
- Alexander Puck
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Stefan Hopf
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Madhura Modak
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Otto Majdic
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Petra Cejka
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Stephan Blüml
- Department for Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Klaus Schmetterer
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Catharina Arnold-Schrauf
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Jens G Gerwien
- Novo Nordisk A/S, Biopharmaceuticals Research Unit, Måløv, Denmark
| | | | - Elisabeth Thell
- Department for Gynecology, St. Josef Hospital, Vienna, Austria
| | - Judith Leitner
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Peter Steinberger
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Regina Aigner
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Maria Seyerl-Jiresch
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Gerhard J Zlabinger
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Johannes Stöckl
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
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46
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Didonna A, Cekanaviciute E, Oksenberg JR, Baranzini SE. Immune cell-specific transcriptional profiling highlights distinct molecular pathways controlled by Tob1 upon experimental autoimmune encephalomyelitis. Sci Rep 2016; 6:31603. [PMID: 27546286 PMCID: PMC4992865 DOI: 10.1038/srep31603] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 07/20/2016] [Indexed: 11/09/2022] Open
Abstract
Multiple sclerosis (MS) is an autoimmune disease of the central nervous system characterized by focal lymphocytic infiltration, demyelination and neurodegeneration. Despite the recent advances in understanding MS molecular basis, no reliable biomarkers have been identified yet to monitor disease progression. Our group has previously reported that low levels of TOB1 in CD4(+) T cells are strongly associated with a higher risk of MS conversion in individuals experiencing an initial demyelinating event. Consistently, Tob1 ablation in mice exacerbates the clinical phenotype of the MS model experimental autoimmune encephalomyelitis (EAE). To shed light on Tob1 molecular functions in the immune system, we have conducted the first cell-based transcriptomic analysis in Tob1(-/-) and wildtype mice upon EAE. Next-generation sequencing was employed to characterize the changes in gene expression in T and B cells at pre- and post-symptomatic EAE stages. Remarkably, we found only modest overlap among the different genetic signatures, suggesting that Tob1 may control distinct genetic programs in the different cytotypes. This hypothesis was corroborated by gene ontology and global interactome analyses, which highlighted specific cellular pathways in each cellular subset before and after EAE induction. In summary, our work pinpoints a multifaceted activity of Tob1 in both homeostasis and disease progression.
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Affiliation(s)
- Alessandro Didonna
- Department of Neurology, University of California San Francisco, San Francisco, California 94158, USA
| | - Egle Cekanaviciute
- Department of Neurology, University of California San Francisco, San Francisco, California 94158, USA
| | - Jorge R Oksenberg
- Department of Neurology, University of California San Francisco, San Francisco, California 94158, USA
| | - Sergio E Baranzini
- Department of Neurology, University of California San Francisco, San Francisco, California 94158, USA
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47
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Basdeo SA, Kelly S, O'Connell K, Tubridy N, McGuigan C, Fletcher JM. Increased expression of Tbet in CD4(+) T cells from clinically isolated syndrome patients at high risk of conversion to clinically definite MS. SPRINGERPLUS 2016; 5:779. [PMID: 27386265 PMCID: PMC4912535 DOI: 10.1186/s40064-016-2510-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Accepted: 06/05/2016] [Indexed: 11/16/2022]
Abstract
Background The ability to identify clinically isolated syndrome (CIS) patients at high risk of progression to clinically definite multiple sclerosis (CDMS) would be clinically beneficial. The initiation of T cell mediated autoimmune diseases such as multiple sclerosis (MS) requires the initial inappropriate activation and differentiation of auto-reactive CD4+ T cells. The quiescence of naive T cells is actively maintained by molecules such as TOB1, which control the threshold of activation. Upon activation, CD4+ T cells can differentiate into various subsets depending on the milieu present. Th1 and Th17 cells are strongly implicated in MS, while regulatory T (Treg) cells constrain autoimmune inflammation and prevent autoimmunity. Findings We therefore investigated the expression of TOB1, CD44 and Treg, Th1 and Th17 transcription factors in relation to CIS progression. The expression of TOB1, CD44, FOXP3, TBX21 and RORC genes were measured in CD4+ T cells from 10 healthy controls, 20 CIS patients within 3 months of initial clinical presentation and 10 relapsing remitting MS patients sampled within 2 months of relapse. CIS patients were subsequently grouped into those who converted to CDMS within 1 year and those who remained CIS. No differences in the expression of TOB1, CD44, FOXP3 and RORC were observed. There was a significant increase in the expression of the Th1 transcription factor Tbet, encoded by TBX21, in CIS patients that converted within 1 year compared with those who did not. Conclusion This pilot data suggests a role for Th1 cells in CIS progression and warrants further evaluation in a larger cohort.
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Affiliation(s)
- Sharee A Basdeo
- Schools of Biochemistry and Immunology and Medicine, Trinity Biomedical Science Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland
| | - Siobhan Kelly
- Department of Neurology, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland.,School of Medicine and Medical Science, University College Dublin, Dublin 2, Ireland
| | - Karen O'Connell
- Department of Neurology, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland.,School of Medicine and Medical Science, University College Dublin, Dublin 2, Ireland
| | - Niall Tubridy
- Department of Neurology, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland.,School of Medicine and Medical Science, University College Dublin, Dublin 2, Ireland
| | - Christopher McGuigan
- Department of Neurology, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland.,School of Medicine and Medical Science, University College Dublin, Dublin 2, Ireland
| | - Jean M Fletcher
- Schools of Biochemistry and Immunology and Medicine, Trinity Biomedical Science Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland
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48
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Suen H, Brown R, Yang S, Weatherburn C, Ho PJ, Woodland N, Nassif N, Barbaro P, Bryant C, Hart D, Gibson J, Joshua D. Multiple myeloma causes clonal T-cell immunosenescence: identification of potential novel targets for promoting tumour immunity and implications for checkpoint blockade. Leukemia 2016; 30:1716-24. [PMID: 27102208 DOI: 10.1038/leu.2016.84] [Citation(s) in RCA: 137] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 03/09/2016] [Accepted: 03/30/2016] [Indexed: 02/07/2023]
Abstract
Tumour-induced dysfunction of cytotoxic T cells in patients with multiple myeloma (MM) may contribute to immune escape and be responsible for the lack of therapeutic efficacy of immune checkpoint blockade. We therefore investigated dysfunctional clonal T cells in MM and demonstrated immunosenescence but not exhaustion as a predominant feature. T-cell clones were detected in 75% of MM patients and their prognostic significance was revalidated in a new post-immunomodulatory drug cohort. The cells exhibited a senescent secretory effector phenotype: KLRG-1+/CD57+/CD160+/CD28-. Normal-for-age telomere lengths indicate that senescence is telomere independent and potentially reversible. p38-mitogen-activated protein kinase, p16 and p21 signalling pathways known to induce senescence were not elevated. Telomerase activity was found to be elevated and this may explain how normal telomere lengths are maintained in senescent cells. T-cell receptor signalling checkpoints were normal but elevated SMAD levels associated with T-cell inactivation were detected and may provide a potential target for the reversal of clonal T-cell dysfunction in MM. Low programmed death 1 and cytotoxic T-lymphocyte-associated antigen 4 expression detected on T-cell clones infers that these cells are not exhausted but suggests that there would be a suboptimal response to immune checkpoint blockade in MM. Our data suggest that other immunostimulatory strategies are required in MM.
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Affiliation(s)
- H Suen
- Institute of Haematology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia.,School of Life Sciences, University of Technology Sydney, Sydney, New South Wales, Australia
| | - R Brown
- Institute of Haematology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - S Yang
- Institute of Haematology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - C Weatherburn
- Institute of Haematology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia.,Sydney University Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - P J Ho
- Institute of Haematology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia.,Sydney University Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - N Woodland
- School of Life Sciences, University of Technology Sydney, Sydney, New South Wales, Australia
| | - N Nassif
- School of Life Sciences, University of Technology Sydney, Sydney, New South Wales, Australia
| | - P Barbaro
- Children's Medical Research Institute, Sydney, New South Wales, Australia
| | - C Bryant
- Institute of Haematology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia.,Sydney University Medical School, University of Sydney, Sydney, New South Wales, Australia.,Dendritic Cell Research, ANZAC Research Institute, Sydney, New South Wales, Australia
| | - D Hart
- Sydney University Medical School, University of Sydney, Sydney, New South Wales, Australia.,Dendritic Cell Research, ANZAC Research Institute, Sydney, New South Wales, Australia
| | - J Gibson
- Institute of Haematology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia.,Sydney University Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - D Joshua
- Institute of Haematology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia.,Sydney University Medical School, University of Sydney, Sydney, New South Wales, Australia
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49
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Khandelwal N, Breinig M, Speck T, Michels T, Kreutzer C, Sorrentino A, Sharma AK, Umansky L, Conrad H, Poschke I, Offringa R, König R, Bernhard H, Machlenkin A, Boutros M, Beckhove P. A high-throughput RNAi screen for detection of immune-checkpoint molecules that mediate tumor resistance to cytotoxic T lymphocytes. EMBO Mol Med 2015; 7:450-63. [PMID: 25691366 PMCID: PMC4403046 DOI: 10.15252/emmm.201404414] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The success of T cell-based cancer immunotherapy is limited by tumor's resistance against killing by cytotoxic T lymphocytes (CTLs). Tumor-immune resistance is mediated by cell surface ligands that engage immune-inhibitory receptors on T cells. These ligands represent potent targets for therapeutic inhibition. So far, only few immune-suppressive ligands have been identified. We here describe a rapid high-throughput siRNA-based screening approach that allows a comprehensive identification of ligands on human cancer cells that inhibit CTL-mediated tumor cell killing. We exemplarily demonstrate that CCR9, which is expressed in many cancers, exerts strong immune-regulatory effects on T cell responses in multiple tumors. Unlike PDL1, which inhibits TCR signaling, CCR9 regulates STAT signaling in T cells, resulting in reduced T-helper-1 cytokine secretion and reduced cytotoxic capacity. Moreover, inhibition of CCR9 expression on tumor cells facilitated immunotherapy of human tumors by tumor-specific T cells in vivo. Taken together, this method allows a rapid and comprehensive determination of immune-modulatory genes in human tumors which, as an entity, represent the ‘immune modulatome’ of cancer.
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Affiliation(s)
- Nisit Khandelwal
- Division of Translational Immunology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Marco Breinig
- Division of Signaling and Functional Genomics, German Cancer Research Center (DKFZ), Heidelberg, Germany Department of Cell and Molecular Biology, Faculty of Medicine Mannheim, Heidelberg University, Heidelberg, Germany
| | - Tobias Speck
- Division of Translational Immunology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Tillmann Michels
- Division of Translational Immunology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Christiane Kreutzer
- Division of Immunogenetics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Antonio Sorrentino
- Division of Translational Immunology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Ashwini Kumar Sharma
- Division of Theoretical Bioinformatics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Ludmila Umansky
- Division of Translational Immunology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Heinke Conrad
- Division of Immunogenetics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Isabel Poschke
- Department of Molecular Oncology of Gastrointestinal Tumors, German Cancer Research Center (DKFZ) and Division of Pancreas Carcinoma Research, Surgery Clinic of Heidelberg University, Heidelberg, Germany
| | - Rienk Offringa
- Department of Molecular Oncology of Gastrointestinal Tumors, German Cancer Research Center (DKFZ) and Division of Pancreas Carcinoma Research, Surgery Clinic of Heidelberg University, Heidelberg, Germany
| | - Rainer König
- Division of Theoretical Bioinformatics, German Cancer Research Center (DKFZ), Heidelberg, Germany Integrated Research and Treatment Center, Center for Sepsis Control and Care (CSCC) Jena University Hospital, Jena, Germany Leibniz Institute for Natural Products Research and Infection Biology, Hans-Knöll-Institute, Jena, Germany
| | - Helga Bernhard
- Department of Hematology/Oncology, Klinikum Darmstadt GmbH, Darmstadt, Germany
| | - Arthur Machlenkin
- Sharett Institute of Oncology, Hadassah-Hebrew University Hospital, Jerusalem, Israel
| | - Michael Boutros
- Division of Signaling and Functional Genomics, German Cancer Research Center (DKFZ), Heidelberg, Germany Department of Cell and Molecular Biology, Faculty of Medicine Mannheim, Heidelberg University, Heidelberg, Germany
| | - Philipp Beckhove
- Division of Translational Immunology, German Cancer Research Center (DKFZ), Heidelberg, Germany
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50
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Lee HS, Kundu J, Kim RN, Shin YK. Transducer of ERBB2.1 (TOB1) as a Tumor Suppressor: A Mechanistic Perspective. Int J Mol Sci 2015; 16:29815-28. [PMID: 26694352 PMCID: PMC4691146 DOI: 10.3390/ijms161226203] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 11/22/2015] [Accepted: 12/08/2015] [Indexed: 01/06/2023] Open
Abstract
Transducer of ERBB2.1 (TOB1) is a tumor-suppressor protein, which functions as a negative regulator of the receptor tyrosine-kinase ERBB2. As most of the other tumor suppressor proteins, TOB1 is inactivated in many human cancers. Homozygous deletion of TOB1 in mice is reported to be responsible for cancer development in the lung, liver, and lymph node, whereas the ectopic overexpression of TOB1 shows anti-proliferation, and a decrease in the migration and invasion abilities on cancer cells. Biochemical studies revealed that the anti-proliferative activity of TOB1 involves mRNA deadenylation and is associated with the reduction of both cyclin D1 and cyclin-dependent kinase (CDK) expressions and the induction of CDK inhibitors. Moreover, TOB1 interacts with an oncogenic signaling mediator, β-catenin, and inhibits β-catenin-regulated gene transcription. TOB1 antagonizes the v-akt murine thymoma viral oncogene (AKT) signaling and induces cancer cell apoptosis by activating BCL2-associated X (BAX) protein and inhibiting the BCL-2 and BCL-XL expressions. The tumor-specific overexpression of TOB1 results in the activation of other tumor suppressor proteins, such as mothers against decapentaplegic homolog 4 (SMAD4) and phosphatase and tensin homolog-10 (PTEN), and blocks tumor progression. TOB1-overexpressing cancer cells have limited potential of growing as xenograft tumors in nude mice upon subcutaneous implantation. This review addresses the molecular basis of TOB1 tumor suppressor function with special emphasis on its regulation of intracellular signaling pathways.
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Affiliation(s)
- Hun Seok Lee
- Research Institute of Pharmaceutical Science, Department of Pharmacy, College of Pharmacy, Seoul National University, Seoul 08826, Korea.
| | - Juthika Kundu
- Research Institute of Pharmaceutical Science, Department of Pharmacy, College of Pharmacy, Seoul National University, Seoul 08826, Korea.
| | - Ryong Nam Kim
- Research Institute of Pharmaceutical Science, Department of Pharmacy, College of Pharmacy, Seoul National University, Seoul 08826, Korea.
- Tumor Microenvironment Global Core Research Center, Seoul National University, Seoul 08826, Korea.
| | - Young Kee Shin
- Research Institute of Pharmaceutical Science, Department of Pharmacy, College of Pharmacy, Seoul National University, Seoul 08826, Korea.
- Tumor Microenvironment Global Core Research Center, Seoul National University, Seoul 08826, Korea.
- The Center for Anti-cancer Companion Diagnostics, School of Biological Science, Institutes of Entrepreneurial BioConvergence, Seoul National University, Seoul 08826, Korea.
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