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Hermans L, O’Sullivan TE. No time to die: Epigenetic regulation of natural killer cell survival. Immunol Rev 2024; 323:61-79. [PMID: 38426615 PMCID: PMC11102341 DOI: 10.1111/imr.13314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
NK cells are short-lived innate lymphocytes that can mediate antigen-independent responses to infection and cancer. However, studies from the past two decades have shown that NK cells can acquire transcriptional and epigenetic modifications during inflammation that result in increased survival and lifespan. These findings blur the lines between the innate and adaptive arms of the immune system, and suggest that the homeostatic mechanisms that govern the persistence of innate immune cells are malleable. Indeed, recent studies have shown that NK cells undergo continuous and strictly regulated adaptations controlling their survival during development, tissue residency, and following inflammation. In this review, we summarize our current understanding of the critical factors regulating NK cell survival throughout their lifespan, with a specific emphasis on the epigenetic modifications that regulate the survival of NK cells in various contexts. A precise understanding of the molecular mechanisms that govern NK cell survival will be important to enhance therapies for cancer and infectious diseases.
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Affiliation(s)
- Leen Hermans
- Department of Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095
| | - Timothy E. O’Sullivan
- Department of Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
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2
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Murakami M. Tissue-resident memory T cells: decoding intra-organ diversity with a gut perspective. Inflamm Regen 2024; 44:19. [PMID: 38632596 PMCID: PMC11022361 DOI: 10.1186/s41232-024-00333-6] [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: 02/08/2024] [Accepted: 04/05/2024] [Indexed: 04/19/2024] Open
Abstract
Tissue-resident memory T cells (TRM) serve as the frontline of host defense, playing a critical role in protection against invading pathogens. This emphasizes their role in providing rapid on-site immune responses across various organs. The physiological significance of TRM is not just confined to infection control; accumulating evidence has revealed that TRM also determine the pathology of diseases such as autoimmune disorders, inflammatory bowel disease, and cancer. Intensive studies on the origin, mechanisms of formation and maintenance, and physiological significance of TRM have elucidated the transcriptional and functional diversity of these cells, which are often affected by local cues associated with their presence. These were further confirmed by the recent remarkable advancements of next-generation sequencing and single-cell technologies, which allow the transcriptional and phenotypic characterization of each TRM subset induced in different microenvironments. This review first overviews the current knowledge of the cell fate, molecular features, transcriptional and metabolic regulation, and biological importance of TRM in health and disease. Finally, this article presents a variety of recent studies on disease-associated TRM, particularly focusing and elaborating on the TRM in the gut, which constitute the largest and most intricate immune network in the body, and their pathological relevance to gut inflammation in humans.
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Affiliation(s)
- Mari Murakami
- Department of Microbiology and Immunology, Graduate School of Medicine, Osaka University, 2-2 Yamada-Oka, Suita, Osaka, 565-0871, Japan.
- Immunology Frontier Research Center, Osaka University, Osaka, 565-0871, Japan.
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3
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Toner J, Gordon JAR, Greenyer H, Kaufman P, Stein JL, Stein GS, Lian JB. RUNX2 as a Prognostic Factor in Human Cancers. Crit Rev Eukaryot Gene Expr 2024; 34:51-66. [PMID: 39072409 DOI: 10.1615/critreveukaryotgeneexpr.2024054162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
The RUNX2 transcription factor was discovered as an essential transcriptional regulator for commitment to osteoblast lineage cells and bone formation. Expression of RUNX2 in other tissues, such as breast, prostate, and lung, has been linked to oncogenesis, cancer progression, and metastasis. In this study, we sought to determine the extent of RUNX2 involvement in other tumors using a pan-cancer analysis strategy. We correlated RUNX2 expression and clinical-pathological parameters in human cancers by interrogating publicly available multiparameter clinical data. Our analysis demonstrated that altered RUNX2 expression or function is associated with several cancer types from different tissues. We identified three tumor types associated with increased RUNX2 expression and four other tumor types associated with decreased RUNX2 expression. Our pan-cancer analysis for RUNX2 revealed numerous other discoveries for RUNX2 regulation of different cancers identified in each of the pan-cancer databases. Both up and down regulation of RUNX2 was observed during progression of specific types of cancers in promoting the distinct types of cancers.
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Affiliation(s)
- J Toner
- Department of Biochemistry, University of Vermont, Larner College of Medicine, Burlington, VT, 05405, USA
| | - Johnathan A R Gordon
- Department of Biochemistry, University of Vermont, Burlington, Vermont, USA; University of Vermont Cancer Center, Burlington, Vermont, USA
| | - H Greenyer
- Department of Biochemistry, University of Vermont, Larner College of Medicine, Burlington, VT, 05405, USA
| | - Peter Kaufman
- Hematology/Oncology Division, Larner College of Medicine, University of Vermont, Burlington, VT 05405, USA
| | - Janet L Stein
- Department of Biochemistry, University of Vermont Larner College of Medicine, Burlington, VT 05405; University of Vermont Cancer Center, University of Vermont Larner College of Medicine, Burlington, VT 05405
| | - Gary S Stein
- Department of Biochemistry, University of Vermont Larner College of Medicine, Burlington, VT 05405; University of Vermont Cancer Center, University of Vermont Larner College of Medicine, Burlington, VT 05405
| | - Jane B Lian
- Department of Biochemistry, University of Vermont Larner College of Medicine, Burlington, VT 05405; University of Vermont Cancer Center, University of Vermont Larner College of Medicine, Burlington, VT 05405
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Delavarian F, Ghorbanzadeh R, Salehi-Vaziri A. Effects of nano-micelles curcumin-based photodynamic therapy on expression of RUNX2 as an indicator of bone regeneration in orthodontic tooth movement. Photodiagnosis Photodyn Ther 2023; 44:103775. [PMID: 37652179 DOI: 10.1016/j.pdpdt.2023.103775] [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: 07/04/2023] [Revised: 08/20/2023] [Accepted: 08/28/2023] [Indexed: 09/02/2023]
Abstract
OBJECTIVES The aim was to evaluate the impact of nano-micelles curcumin (NMCur) based photodynamic therapy (PDT) during compressive force application on human PDL-derived fibroblasts (HPDFs) in vitro for up to 6 days on the expression of RUNX2 as an indicator of bone development and remodeling. MATERIALS AND METHODS HPDFs viability during 2 g/cm2 compressive force application was investigated using membrane-impermeable DNA-binding stain propidium iodide (PI) in flow cytometry. Gene and protein expressions of RUNX2 were assessed by quantitative reverse transcription polymerase chain reaction (RT-qPCR) and flow cytometry, respectively, following NMCur-PDT at different concentrations of NMCur (25, 50, and 75 µM plus irradiation of 180 mW/cm2 diode laser at the wavelength of 450 ± 10 nm for 5 min) during the static compressive force of 2 g/cm2 on HPDFs via weight approach-based in-vitro loading model up to 6 days. One-way ANOVA and Tukey post hoc tests at a p-value equal to/or less than 0.05 were used to analyze the obtained data. RESULTS After 6 days of application of compressive force, 99.21 ± 6.12% of HPDFs were PI negative and therefore considered alive, while only 0.89 ± 0.06% of the population were PI positive and considered dead. In comparison with controls (loaded HPDFs), expression of RUNX2 gene was dose-dependent and the highest expression (14.38-fold; P < 0.01) was observed at a concentration of 75 µM NMCur following 5 min of diode laser irradiation (i.e., 75 µM NMCur-PDT) during compressive force application on day 5. The greatest and lowest upregulations of RUNX2 protein were observed in 75 µM NMCur-PDT during compressive force application on HPDFs, on day 5 (3.19-fold; P < 0.01) and day 6 (2.09-fold; P < 0.05), respectively. CONCLUSION NMCur-PDT during weight approach-based in-vitro loading model can promote orthodontic tooth movement by upregulating RUNX2 signaling pathway in HPDFs.
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Affiliation(s)
- Fatemeh Delavarian
- Department of Orthodontics, School of Dentistry, Shahed University, Tehran, Iran
| | | | - Abbas Salehi-Vaziri
- Department of Orthodontics, School of Dentistry, Shahed University, Tehran, Iran.
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Zhi L, Wang X, Gao Q, He W, Shang C, Guo C, Niu Z, Zhu W, Zhang X. Intrinsic and extrinsic factors determining natural killer cell fate: Phenotype and function. Biomed Pharmacother 2023; 165:115136. [PMID: 37453199 DOI: 10.1016/j.biopha.2023.115136] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/26/2023] [Accepted: 07/07/2023] [Indexed: 07/18/2023] Open
Abstract
Natural killer (NK) cells are derived from hematopoietic stem cells. They belong to the innate lymphoid cell family, which is an important part of innate immunity. This family plays a role in the body mainly through the release of perforin, granzyme, and various cytokines and is involved in cytotoxicity and cytokine-mediated immune regulation. NK cells involved in normal immune regulation and the tumor microenvironment (TME) can exhibit completely different states. Here, we discuss the growth, development, and function of NK cells in regard to intrinsic and extrinsic factors. Intrinsic factors are those that influence NK cells to promote cell maturation and exert their effector functions under the control of internal metabolism and self-related genes. Extrinsic factors include the metabolism of the TME and the influence of related proteins on the "fate" of NK cells. This review targets the potential of NK cell metabolism, cellular molecules, regulatory genes, and other mechanisms involved in immune regulation. We further discuss immune-mediated tumor therapy, which is the trend of current research.
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Affiliation(s)
- Lingtong Zhi
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province 453003, PR China
| | - Xing Wang
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province 453003, PR China
| | - Qing Gao
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province 453003, PR China
| | - Wenhui He
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province 453003, PR China
| | - Chongye Shang
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province 453003, PR China
| | - Changjiang Guo
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province 453003, PR China
| | - Zhiyuan Niu
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province 453003, PR China
| | - Wuling Zhu
- Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan Province 453003, PR China.
| | - Xuan Zhang
- Department of Physiology and Neurobiology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, PR China.
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Li X, Zhang J, Wang B, Chen C, Zhang E, Lv Z, He Q, Hu Y, Wang X, Zhang F. USP24-dependent stabilization of Runx2 recruits a p300/NCOA3 complex to transactivate ADAMTS genes and promote degeneration of intervertebral disc in chronic inflammation mice. Biol Direct 2023; 18:37. [PMID: 37415159 PMCID: PMC10324278 DOI: 10.1186/s13062-023-00395-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 07/02/2023] [Indexed: 07/08/2023] Open
Abstract
BACKGROUND Intervertebral disc degeneration (IDD) naturally occurs during the aging process. Its occurrence is closely related to chronic inflammation; however, the causal relationship between them is controversial. This study aimed to investigate if inflammation would promote IDD incidence and explore the underlying mechanism. METHODS A chronic inflammation mouse model was established by intraperitoneal injection of lipopolysaccharide (LPS). Enzyme-linked immunosorbent assay was performed to determine proinflammatory cytokines in serum. Histological staining was used to evaluate the degeneration of IVDs. Immunoblots and RT-qPCR analyses were performed to measure protein and mRNA expression levels. Immunoprecipitation, mass spectrometry, and co-immunoprecipitation assays were used to determine the assembly of protein complex. RESULTS We found that an inflammatory microenvironment activated p38 kinase, which phosphorylated the Runx2 transcription factor at the Ser28 site. The phosphorylated Runx2 (pRunx2) then recruited a deubiquitinase, ubiquitin-specific peptidase 24 (USP24), which stabilized pRunx2 and protected it from ubiquitin-dependent proteasomal degradation. The stabilized pRunx2 recruited histone acetyltransferase p300 and nuclear receptor coactivator 3 (NCOA3) to assemble a complex. This NCOA3-p300-pRunx2 complex then transactivated the expression of 13 ADAMTS (a disintegrin and metalloproteinase with thrombospondin motif) genes, thereby promoting the degradation of extracellular matrix (ECM) in intervertebral discs (IVDs) and causing IDD. Administration of either a p38 inhibitor (doramapimod), a NCOA3 inhibitor (bufalin), or a p300 inhibitor (EML425) significantly decreased the expression of the 13 ADAMTS genes and slowed the degeneration of IVDs. CONCLUSION In summary, our results demonstrate that USP24 protects pRunx2 from proteasomal degradation under chronic inflammation conditions, enabling pRunx2 to transactivate ADAMTS genes and degrade ECM. Our findings provide direct evidence that chronic inflammation triggers IDD and offer a therapeutic strategy for retarding IDD in patients with chronic inflammation.
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Affiliation(s)
- Xingguo Li
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650032, China
| | - Jun Zhang
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650032, China
| | - Bing Wang
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650032, China
| | - Chao Chen
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650032, China
| | - Enyu Zhang
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650032, China
| | - Zhengpin Lv
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650032, China
| | - Qicong He
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650032, China
| | - Yaoquan Hu
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650032, China
| | - Xuenan Wang
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650032, China
| | - Fan Zhang
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650032, China.
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Li F, Liu S. Focusing on NK cells and ADCC: A promising immunotherapy approach in targeted therapy for HER2-positive breast cancer. Front Immunol 2022; 13:1083462. [PMID: 36601109 PMCID: PMC9806173 DOI: 10.3389/fimmu.2022.1083462] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022] Open
Abstract
Human epidermal growth factor receptor 2 (HER2)-positive breast cancer has a high metastatic potential. Monoclonal antibodies (mAbs) that target HER2, such as trastuzumab and pertuzumab, are the cornerstone of adjuvant therapy for HER2-positive breast cancer. A growing body of preclinical and clinical evidence points to the importance of innate immunity mediated by antibody-dependent cellular cytotoxicity (ADCC) in the clinical effect of mAbs on the resulting anti-tumor response. In this review, we provide an overview of the role of natural killer (NK) cells and ADCC in targeted therapy of HER2-positive breast cancer, including the biological functions of NK cells and the role of NK cells and ADCC in anti-HER2 targeted drugs. We then discuss regulatory mechanisms and recent strategies to leverage our knowledge of NK cells and ADCC as an immunotherapy approach for HER2-positive breast cancer.
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Persyn E, Wahlen S, Kiekens L, Van Loocke W, Siwe H, Van Ammel E, De Vos Z, Van Nieuwerburgh F, Matthys P, Taghon T, Vandekerckhove B, Van Vlierberghe P, Leclercq G. IRF2 is required for development and functional maturation of human NK cells. Front Immunol 2022; 13:1038821. [PMID: 36544762 PMCID: PMC9762550 DOI: 10.3389/fimmu.2022.1038821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/11/2022] [Indexed: 12/12/2022] Open
Abstract
Natural killer (NK) cells are cytotoxic and cytokine-producing lymphocytes that play an important role in the first line of defense against malignant or virus-infected cells. A better understanding of the transcriptional regulation of human NK cell differentiation is crucial to improve the efficacy of NK cell-mediated immunotherapy for cancer treatment. Here, we studied the role of the transcription factor interferon regulatory factor (IRF) 2 in human NK cell differentiation by stable knockdown or overexpression in cord blood hematopoietic stem cells and investigated its effect on development and function of the NK cell progeny. IRF2 overexpression had limited effects in these processes, indicating that endogenous IRF2 expression levels are sufficient. However, IRF2 knockdown greatly reduced the cell numbers of all early differentiation stages, resulting in decimated NK cell numbers. This was not caused by increased apoptosis, but by decreased proliferation. Expression of IRF2 is also required for functional maturation of NK cells, as the remaining NK cells after silencing of IRF2 had a less mature phenotype and showed decreased cytotoxic potential, as well as a greatly reduced cytokine secretion. Thus, IRF2 plays an important role during development and functional maturation of human NK cells.
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Affiliation(s)
- Eva Persyn
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Sigrid Wahlen
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Laura Kiekens
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Wouter Van Loocke
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Hannah Siwe
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Els Van Ammel
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Zenzi De Vos
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | | | - Patrick Matthys
- Laboratory of Immunobiology, Rega Institute for Medical Research, Department of Microbiology, Immunology and Transplantation, K.U. Leuven, Leuven, Belgium
| | - Tom Taghon
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Bart Vandekerckhove
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Pieter Van Vlierberghe
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Georges Leclercq
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium,Cancer Research Institute Ghent (CRIG), Ghent, Belgium,*Correspondence: Georges Leclercq,
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Yu G, Chen Y, Hu Y, Zhou Y, Ding X, Zhou X. Roles of transducin-like enhancer of split (TLE) family proteins in tumorigenesis and immune regulation. Front Cell Dev Biol 2022; 10:1010639. [PMID: 36438567 PMCID: PMC9692235 DOI: 10.3389/fcell.2022.1010639] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 10/31/2022] [Indexed: 08/16/2023] Open
Abstract
Mammalian transducin-like enhancer of split family proteins (TLEs) are homologous to Drosophila Groucho (Gro) and are essential transcriptional repressors. Seven TLE family members, TLE1-7, have been identified to date. These proteins do not bind DNA directly; instead, they bind a set of transcription factors and thereby inhibit target gene expression. Loss of TLEs in mice usually leads to defective early development; however, TLE functions in developmentally mature cells are unclear. Recent studies have revealed that TLEs are dysregulated in certain human cancer types and may function as oncogenes or tumor suppressors in different contexts. TLE levels also affect the efficacy of cancer treatments and the development of drug resistance. In addition, TLEs play critical roles in the development and function of immune cells, including macrophages and lymphocytes. In this review, we provide updates on the expression, function, and mechanism of TLEs; discuss the roles played by TLEs in tumorigenesis and the inflammatory response; and elaborate on several TLE-associated signaling pathways, including the Notch, Wnt, and MAPK pathways. Finally, we discuss potential strategies for targeting TLEs in cancer therapy.
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Affiliation(s)
- Guiping Yu
- Department of Immunology, Nantong University, School of Medicine, Nantong, China
- Department of Cardiothoracic Surgery, The Affiliated Jiangyin Hospital of Nantong University, Jiangyin, China
| | - Yiqi Chen
- Department of Immunology, Nantong University, School of Medicine, Nantong, China
| | - Yuwen Hu
- Department of Immunology, Nantong University, School of Medicine, Nantong, China
| | - Yan Zhou
- Department of Periodontology, The Affiliated Nantong Stomatological Hospital of Nantong University, Nantong, China
| | - Xiaoling Ding
- Department of Gastroenterology, The Affiliated Hospital of Nantong University, Nantong, China
| | - Xiaorong Zhou
- Department of Immunology, Nantong University, School of Medicine, Nantong, China
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