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Yao Y, Zhou S, Yan Y, Fu K, Xiao S. The tripartite motif-containing 24 is a multifunctional player in human cancer. Cell Biosci 2024; 14:103. [PMID: 39160596 PMCID: PMC11334367 DOI: 10.1186/s13578-024-01289-3] [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: 04/09/2024] [Accepted: 08/15/2024] [Indexed: 08/21/2024] Open
Abstract
Tripartite motif-containing 24 (TRIM24), also known as transcriptional intermediary factor 1α (TIF1α), is the founding member of TIF1 family. Recent evidence indicates that aberrant expression of TRIM24, functions as an oncogene, is associated with poor prognosis across various cancer types. TRIM24 exhibits a multifaceted structure comprising an N-terminal TRIM region with a RING domain, B-box type 1 and type 2 domains, and a coiled-coil region, as well as a C-terminal plant-homeodomain (PHD)-bromodomain. The bromodomain serves as a 'reader' of epigenetic histone marks, regulating chromatin structure and gene expression by linking associated proteins to acetylated nucleosomal targets, thereby controlling transcription of genes. Notably, bromodomains have emerged as compelling targets for cancer therapeutic development. In addition, TRIM24 plays specialized roles as a signal transduction molecule, orchestrating various cellular signaling cascades in cancer cells. Herein, we review the recent advancements in understanding the functions of TRIM24, and demonstrate the research progress in utilizing TRIM24 as a target for cancer therapy.
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Affiliation(s)
- Yuanbing Yao
- Institute of Molecular Precision Medicine and Hunan Key Laboratory of Molecular Precision Medicine, Department of General Surgery, Xiangya Hospital, Central South University, 87# Xiangya Road, Changsha, 410008, Hunan, China
| | - Sheng Zhou
- Institute of Molecular Precision Medicine and Hunan Key Laboratory of Molecular Precision Medicine, Department of General Surgery, Xiangya Hospital, Central South University, 87# Xiangya Road, Changsha, 410008, Hunan, China
- Department of Ultrasound, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Yue Yan
- Yanbian University Medical School, Yanji, Jilin, China
| | - Kai Fu
- Institute of Molecular Precision Medicine and Hunan Key Laboratory of Molecular Precision Medicine, Department of General Surgery, Xiangya Hospital, Central South University, 87# Xiangya Road, Changsha, 410008, Hunan, China.
- Hunan Key Laboratory of Animal Models for Human Diseases, Central South University, 87# Xiangya Road, Changsha, 410008, Hunan, China.
- Center MOE Key Lab of Rare Pediatric Diseases & Hunan Key Laboratory of Medical Genetics of the School of Life Sciences, Central South University, 87# Xiangya Road, Changsha, 410008, Hunan, China.
- Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, 87# Xiangya Road, Changsha, 410008, Hunan, China.
- National Clinical Research Center for Geriatric Disorders, 87# Xiangya Road, Changsha, 410008, Hunan, China.
| | - Shuai Xiao
- The First Affiliated Hospital, Department of Gastrointestinal Surgery, Hengyang Medical School, University of South China, 69# Chuanshan Road, Hengyang, 421001, Hunan, China.
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2
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Oh S, Mandell MA. Regulation of Mitochondria-Derived Immune Activation by 'Antiviral' TRIM Proteins. Viruses 2024; 16:1161. [PMID: 39066323 PMCID: PMC11281404 DOI: 10.3390/v16071161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Revised: 07/15/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024] Open
Abstract
Mitochondria are key orchestrators of antiviral responses that serve as platforms for the assembly and activation of innate immune-signaling complexes. In response to viral infection, mitochondria can be triggered to release immune-stimulatory molecules that can boost interferon production. These same molecules can be released by damaged mitochondria to induce pathogenic, antiviral-like immune responses in the absence of infection. This review explores how members of the tripartite motif-containing (TRIM) protein family, which are recognized for their roles in antiviral defense, regulate mitochondria-based innate immune activation. In antiviral defense, TRIMs are essential components of immune signal transduction pathways and function as directly acting viral restriction factors. TRIMs carry out conceptually similar activities when controlling immune activation related to mitochondria. First, they modulate immune-signaling pathways that can be activated by mitochondrial molecules. Second, they co-ordinate the direct removal of mitochondria and associated immune-activating factors through mitophagy. These insights broaden the scope of TRIM actions in innate immunity and may implicate TRIMs in diseases associated with mitochondria-derived inflammation.
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Affiliation(s)
- Seeun Oh
- Department of Molecular Genetics and Microbiology, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA;
| | - Michael A. Mandell
- Department of Molecular Genetics and Microbiology, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA;
- Autophagy, Inflammation and Metabolism Center of Biomedical Research Excellence, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
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3
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Shi Q, Yu B, Zhang Y, Yang Y, Xu C, Zhang M, Chen G, Luo F, Sun B, Yang R, Li Y, Feng H. Targeting TRIM24 promotes neuroblastoma differentiation and decreases tumorigenicity via LSD1/CoREST complex. Cell Oncol (Dordr) 2023; 46:1763-1775. [PMID: 37466744 DOI: 10.1007/s13402-023-00843-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/07/2023] [Indexed: 07/20/2023] Open
Abstract
PURPOSE High-risk neuroblastoma (NB) still has an unfavorable prognosis and inducing NB differentiation is a potential strategy in clinical treatment, yet underlying mechanisms are still elusive. Here we identify TRIM24 as an important regulator of NB differentiation. METHODS Multiple datasets and clinical specimens were analyzed to define the role of TRIM24 in NB. The effects of TRIM24 on differentiation and growth of NB were determined by cell morphology, spheres formation, soft agar assay, and subcutaneous xenograft in nude mice. RNA-Seq and qRT-PCR were used to identify genes and pathways involved. Mass spectrometry and co-immunoprecipitation were used to explore the interaction of proteins. RESULTS Trim24 is highly expressed in spontaneous NB in TH-MYCN transgenic mice and clinical NB specimens. It is associated with poor NB differentiation and unfavorable prognostic. Knockout of TRIM24 in neuroblastoma cells promotes cell differentiation, reduces cell stemness, and inhibits colony formation in soft agar and subcutaneous xenograft tumor growth in nude mice. Mechanistically, TRIM24 knockout alters genes and pathways related to neural differentiation and development by suppressing LSD1/CoREST complex formation. Besides, TRIM24 knockout activates the retinoic acid pathway. Targeting TRIM24 in combination with retinoic acid (RA) synergistically promotes NB cell differentiation and inhibits cell viability. CONCLUSION Our findings demonstrate that TRIM24 is critical for NB differentiation and suggest that TRIM24 is a promising therapeutic target in combination with RA in NB differentiation therapy.
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Affiliation(s)
- Qiqi Shi
- Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, Shanghai Cancer Institute, School of Medicine, State Key Laboratory of Systems Medicine for Cancer, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Bo Yu
- Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, Shanghai Cancer Institute, School of Medicine, State Key Laboratory of Systems Medicine for Cancer, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Yingwen Zhang
- Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, Shanghai Cancer Institute, School of Medicine, State Key Laboratory of Systems Medicine for Cancer, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Yi Yang
- Pediatric Translational Medicine Institute, Department of Hematology & Oncology, Shanghai Children's Medical Center, School of Medicine, National Health Committee Key Laboratory of Pediatric Hematology & Oncology, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Chenxin Xu
- Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, Shanghai Cancer Institute, School of Medicine, State Key Laboratory of Systems Medicine for Cancer, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Mingda Zhang
- Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, Shanghai Cancer Institute, School of Medicine, State Key Laboratory of Systems Medicine for Cancer, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Guoyu Chen
- Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, Shanghai Cancer Institute, School of Medicine, State Key Laboratory of Systems Medicine for Cancer, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Fei Luo
- Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, Shanghai Cancer Institute, School of Medicine, State Key Laboratory of Systems Medicine for Cancer, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Bowen Sun
- Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, Shanghai Cancer Institute, School of Medicine, State Key Laboratory of Systems Medicine for Cancer, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Ru Yang
- Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, Shanghai Cancer Institute, School of Medicine, State Key Laboratory of Systems Medicine for Cancer, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Yanxin Li
- Pediatric Translational Medicine Institute, Department of Hematology & Oncology, Shanghai Children's Medical Center, School of Medicine, National Health Committee Key Laboratory of Pediatric Hematology & Oncology, Shanghai Jiao Tong University, Shanghai, 200127, China.
| | - Haizhong Feng
- Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, Shanghai Cancer Institute, School of Medicine, State Key Laboratory of Systems Medicine for Cancer, Shanghai Jiao Tong University, Shanghai, 200127, China.
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4
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Talukdar PD, Chatterji U. Transcriptional co-activators: emerging roles in signaling pathways and potential therapeutic targets for diseases. Signal Transduct Target Ther 2023; 8:427. [PMID: 37953273 PMCID: PMC10641101 DOI: 10.1038/s41392-023-01651-w] [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: 04/18/2023] [Revised: 08/27/2023] [Accepted: 09/10/2023] [Indexed: 11/14/2023] Open
Abstract
Specific cell states in metazoans are established by the symphony of gene expression programs that necessitate intricate synergic interactions between transcription factors and the co-activators. Deregulation of these regulatory molecules is associated with cell state transitions, which in turn is accountable for diverse maladies, including developmental disorders, metabolic disorders, and most significantly, cancer. A decade back most transcription factors, the key enablers of disease development, were historically viewed as 'undruggable'; however, in the intervening years, a wealth of literature validated that they can be targeted indirectly through transcriptional co-activators, their confederates in various physiological and molecular processes. These co-activators, along with transcription factors, have the ability to initiate and modulate transcription of diverse genes necessary for normal physiological functions, whereby, deregulation of such interactions may foster tissue-specific disease phenotype. Hence, it is essential to analyze how these co-activators modulate specific multilateral processes in coordination with other factors. The proposed review attempts to elaborate an in-depth account of the transcription co-activators, their involvement in transcription regulation, and context-specific contributions to pathophysiological conditions. This review also addresses an issue that has not been dealt with in a comprehensive manner and hopes to direct attention towards future research that will encompass patient-friendly therapeutic strategies, where drugs targeting co-activators will have enhanced benefits and reduced side effects. Additional insights into currently available therapeutic interventions and the associated constraints will eventually reveal multitudes of advanced therapeutic targets aiming for disease amelioration and good patient prognosis.
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Affiliation(s)
- Priyanka Dey Talukdar
- Cancer Research Laboratory, Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, West Bengal, India
| | - Urmi Chatterji
- Cancer Research Laboratory, Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, West Bengal, India.
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5
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Zhang J, Zhou Y, Feng J, Xu X, Wu J, Guo C. Deciphering roles of TRIMs as promising targets in hepatocellular carcinoma: current advances and future directions. Biomed Pharmacother 2023; 167:115538. [PMID: 37729731 DOI: 10.1016/j.biopha.2023.115538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/15/2023] [Accepted: 09/17/2023] [Indexed: 09/22/2023] Open
Abstract
Tripartite motif (TRIM) family is assigned to RING-finger-containing ligases harboring the largest number of proteins in E3 ubiquitin ligating enzymes. E3 ubiquitin ligases target the specific substrate for proteasomal degradation via the ubiquitin-proteasome system (UPS), which seems to be a more effective and direct strategy for tumor therapy. Recent advances have demonstrated that TRIM genes associate with the occurrence and progression of hepatocellular carcinoma (HCC). TRIMs trigger or inhibit multiple biological activities like proliferation, apoptosis, metastasis, ferroptosis and autophagy in HCC dependent on its highly conserved yet diverse structures. Remarkably, autophagy is another proteolytic pathway for intracellular protein degradation and TRIM proteins may help to delineate the interaction between the two proteolytic systems. In depth research on the precise molecular mechanisms of TRIM family will allow for targeting TRIM in HCC treatment. We also highlight several potential directions warranted further development associated with TRIM family to provide bright insight into its translational values in hepatocellular carcinoma.
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Affiliation(s)
- Jie Zhang
- Department of Gastroenterology, Putuo People's Hospital, Tongji University School of Medicine, Shanghai 200060, China; Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Yuting Zhou
- Department of Gastroenterology, Shanghai Tenth People's Hospital, School of Clinical Medicine of Nanjing Medical University, Shanghai 200072, China
| | - Jiao Feng
- Department of Gastroenterology, Putuo People's Hospital, Tongji University School of Medicine, Shanghai 200060, China; Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China.
| | - Xuanfu Xu
- Department of Gastroenterology, Shidong Hospital, University of Shanghai for Science and Technology, Shanghai 200433, China.
| | - Jianye Wu
- Department of Gastroenterology, Putuo People's Hospital, Tongji University School of Medicine, Shanghai 200060, China.
| | - Chuanyong Guo
- Department of Gastroenterology, Putuo People's Hospital, Tongji University School of Medicine, Shanghai 200060, China; Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China.
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6
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Horvath RM, Dahabieh M, Malcolm T, Sadowski I. TRIM24 controls induction of latent HIV-1 by stimulating transcriptional elongation. Commun Biol 2023; 6:86. [PMID: 36690785 PMCID: PMC9870992 DOI: 10.1038/s42003-023-04484-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 01/15/2023] [Indexed: 01/24/2023] Open
Abstract
Binding of USF1/2 and TFII-I (RBF-2) at conserved sites flanking the HIV-1 LTR enhancer is essential for reactivation from latency in T cells, with TFII-I knockdown rendering the provirus insensitive to T cell signaling. We identified an interaction of TFII-I with the tripartite motif protein TRIM24, and these factors were found to be constitutively associated with the HIV-1 LTR. Similar to the effect of TFII-I depletion, loss of TRIM24 impaired reactivation of HIV-1 in response to T cell signaling. TRIM24 deficiency did not affect recruitment of RNA Pol II to the LTR promoter, but inhibited transcriptional elongation, an effect that was associated with decreased RNA Pol II CTD S2 phosphorylation and impaired recruitment of CDK9. A considerable number of genomic loci are co-occupied by TRIM24/TFII-I, and we found that TRIM24 deletion caused altered T cell immune response, an effect that is facilitated by TFII-I. These results demonstrate a role of TRIM24 for regulation of transcriptional elongation from the HIV-1 promoter, through its interaction with TFII-I, and by recruitment of P-TEFb. Furthermore, these factors co-regulate a significant proportion of genes involved in T cell immune response, consistent with tight coupling of HIV-1 transcriptional activation and T cell signaling.
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Affiliation(s)
- Riley M Horvath
- Department of Biochemistry and Molecular Biology, Molecular Epigenetics Group, LSI, University of British Columbia, Vancouver, B.C., Canada
| | - Matthew Dahabieh
- Department of Biochemistry and Molecular Biology, Molecular Epigenetics Group, LSI, University of British Columbia, Vancouver, B.C., Canada
| | - Tom Malcolm
- Department of Biochemistry and Molecular Biology, Molecular Epigenetics Group, LSI, University of British Columbia, Vancouver, B.C., Canada
| | - Ivan Sadowski
- Department of Biochemistry and Molecular Biology, Molecular Epigenetics Group, LSI, University of British Columbia, Vancouver, B.C., Canada.
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7
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Horvath RM, Brumme ZL, Sadowski I. Inhibition of the TRIM24 bromodomain reactivates latent HIV-1. Sci Rep 2023; 13:556. [PMID: 36631514 PMCID: PMC9832417 DOI: 10.1038/s41598-023-27765-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 01/06/2023] [Indexed: 01/12/2023] Open
Abstract
Expression of the HIV-1 genome by RNA Polymerase II is regulated at multiple steps, as are most cellular genes, including recruitment of general transcription factors and control of transcriptional elongation from the core promoter. We recently discovered that tripartite motif protein TRIM24 is recruited to the HIV-1 Long Terminal Repeat (LTR) by interaction with TFII-I and causes transcriptional elongation by stimulating association of PTEF-b/ CDK9. Because TRIM24 is required for stimulation of transcription from the HIV-1 LTR, we were surprised to find that IACS-9571, a specific inhibitor of the TRIM24 C-terminal bromodomain, induces HIV-1 provirus expression in otherwise untreated cells. IACS-9571 reactivates HIV-1 in T cell lines bearing multiple different provirus models of HIV-1 latency. Additionally, treatment with this TRIM24 bromodomain inhibitor encourages productive HIV-1 expression in newly infected cells and inhibits formation of immediate latent transcriptionally repressed provirus. IACS-9571 synergizes with PMA, ionomycin, TNF-α and PEP005 to activate HIV-1 expression. Furthermore, co-treatment of CD4 + T cells from individuals with HIV-1 on antiretroviral therapy (ART) with PEP005 and IACS-9571 caused robust provirus expression. Notably, IACS-9571 did not cause global activation of T cells; rather, it inhibited induction of IL2 and CD69 expression in human PBMCs and Jurkat T cells treated with PEP005 or PMA. These observations indicate the TRIM24 bromodomain inhibitor IACS-9571 represents a novel HIV-1 latency reversing agent (LRA), and unlike other compounds with this activity, causes partial suppression of T cell activation while inducing expression of latent provirus.
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Affiliation(s)
- Riley M Horvath
- Department of Biochemistry and Molecular Biology, Molecular Epigenetics Group, LSI, University of British Columbia, UBC, 2350 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Zabrina L Brumme
- Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada
- British Columbia Centre for Excellence in HIV/AIDS, Vancouver, BC, Canada
| | - Ivan Sadowski
- Department of Biochemistry and Molecular Biology, Molecular Epigenetics Group, LSI, University of British Columbia, UBC, 2350 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada.
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8
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Ray SK, Mukherjee S. Altered Expression of TRIM Proteins - Inimical Outcome and Inimitable Oncogenic Function in Breast Cancer with Diverse Carcinogenic Hallmarks. Curr Mol Med 2023; 23:44-53. [PMID: 35021972 DOI: 10.2174/1566524022666220111122450] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 11/25/2021] [Accepted: 11/30/2021] [Indexed: 12/16/2022]
Abstract
Deregulation of ubiquitin-mediated degradation of oncogene products or tumor suppressors appears to be implicated in the genesis of carcinomas, according to new clinical findings. Conferring to recent research, some members of the tripartite motif (TRIM) proteins (a subfamily of the RING type E3 ubiquitin ligases) act as significant carcinogenesis regulators. Intracellular signaling, development, apoptosis, protein quality control, innate immunity, autophagy, and carcinogenesis are all regulated by TRIM family proteins, the majority of which have E3 ubiquitin ligase activity. The expression of TRIMs in tumors is likely to be related to the formation and/or progression of the disease, and TRIM expression could be used to predict cancer prognosis. Breast cancer is the most common malignancy in women and also the leading cause of death. TRIM family proteins have unique, vital activities, and their dysregulation, such as TRIM 21, promotes breast cancer, according to growing evidence. Many TRIM proteins have been identified as important cancer biomarkers, with decreased or elevated levels of expression. TRIM29 functions as a hypoxia-induced tumor suppressor gene, revealing a new molecular mechanism for ATM-dependent breast cancer suppression. In breast cancer cells, the TRIM28-TWIST1-EMT axis exists, and TRIM28 enhances breast cancer metastasis by stabilizing TWIST1, and thereby increasing epithelial-tomesenchymal transition. Interestingly, many TRIM proteins are involved in the control of p53, and many TRIM proteins are likewise regulated by p53, according to current research. Furthermore, TRIMs linked to specific tumors may aid in the creation of innovative TRIM-targeted cancer treatments. This review focuses on TRIM proteins that are involved in tumor development, progression, and are of clinical significance in breast cancer.
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Affiliation(s)
| | - Sukhes Mukherjee
- Department of Biochemistry, All India Institute of Medical Sciences, Bhopal, Madhya Pradesh-462020, India
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9
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Zhang Y, Zhang W, Zheng L, Guo Q. The roles and targeting options of TRIM family proteins in tumor. Front Pharmacol 2022; 13:999380. [PMID: 36249749 PMCID: PMC9561884 DOI: 10.3389/fphar.2022.999380] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
Tripartite motif (TRIM) containing proteins are a class of E3 ubiquitin ligases, which are critically implicated in the occurrence and development of tumors. They can function through regulating various aspects of tumors, such as tumor proliferation, metastasis, apoptosis and the development of drug resistance during tumor therapy. Some members of TRIM family proteins can mediate protein ubiquitination and chromosome translocation via modulating several signaling pathways, like p53, NF-κB, AKT, MAPK, Wnt/β-catenin and other molecular regulatory mechanisms. The multi-domain nature/multi-functional biological role of TRIMs implies that blocking just one function or one domain might not be sufficient to obtain the desired therapeutic outcome, therefore, a detailed and systematic understanding of the biological functions of the individual domains of TRIMs is required. This review mainly described their roles and underlying mechanisms in tumorigenesis and progression, and it might shade light on a potential targeting strategy for TRIMs in tumor treatment, especially using PROTACs.
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Affiliation(s)
- Yuxin Zhang
- Department of Pharmacy, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
- School of Life Science and Technology, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, Nanjing, China
| | - Wenzhou Zhang
- Department of Pharmacy, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Lufeng Zheng
- School of Life Science and Technology, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, Nanjing, China
- *Correspondence: Lufeng Zheng, ; Qianqian Guo,
| | - Qianqian Guo
- Department of Pharmacy, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
- School of Life Science and Technology, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, Nanjing, China
- *Correspondence: Lufeng Zheng, ; Qianqian Guo,
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Xiong F, Wang Q, Wu GH, Liu WZ, Wang B, Chen YJ. Direct and indirect effects of IFN-α2b in malignancy treatment: not only an archer but also an arrow. Biomark Res 2022; 10:69. [PMID: 36104718 PMCID: PMC9472737 DOI: 10.1186/s40364-022-00415-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 08/22/2022] [Indexed: 12/02/2022] Open
Abstract
Interferon-α2b (IFN-α2b) is a highly active cytokine that belongs to the interferon-α (IFN-α) family. IFN-α2b has beneficial antiviral, antitumour, antiparasitic and immunomodulatory activities. Direct and indirect antiproliferative effects of IFN-α2b have been found to occur via multiple pathways, mainly the JAK-STAT pathway, in certain cancers. This article reviews mechanistic studies and clinical trials on IFN-α2b. Potential regulators of the function of IFN-α2b were also reviewed, which could be utilized to relieve the poor response to IFN-α2b. IFN-α2b can function not only by enhancing the systematic immune response but also by directly killing tumour cells. Different parts of JAK-STAT pathway activated by IFN-α2b, such as interferon alpha and beta receptors (IFNARs), Janus kinases (JAKs) and IFN‐stimulated gene factor 3 (ISGF3), might serve as potential target for enhancing the pharmacological action of IFN-α2b. Despite some issues that remain to be solved, based on current evidence, IFN-α2b can inhibit disease progression and improve the survival of patients with certain types of malignant tumours. More efforts should be made to address potential adverse effects and complications.
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11
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Lu K, Pan Y, Huang Z, Liang H, Ding ZY, Zhang B. TRIM proteins in hepatocellular carcinoma. J Biomed Sci 2022; 29:69. [PMID: 36100865 PMCID: PMC9469581 DOI: 10.1186/s12929-022-00854-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 09/02/2022] [Indexed: 11/19/2022] Open
Abstract
The tripartite motif (TRIM) protein family is a highly conserved group of E3 ligases with 77 members known in the human, most of which consist of a RING-finger domain, one or two B-box domains, and a coiled-coil domain. Generally, TRIM proteins function as E3 ligases to facilitate specific proteasomal degradation of target proteins. In addition, E3 ligase independent functions of TRIM protein were also reported. In hepatocellular carcinoma, expressions of TRIM proteins are both regulated by genetic and epigenetic mechanisms. TRIM proteins regulate multiple biological activities and signaling cascades. And TRIM proteins influence hallmarks of HCC. This review systematically demonstrates the versatile roles of TRIM proteins in HCC and helps us better understand the molecular mechanism of the development and progression of HCC.
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Affiliation(s)
- Kan Lu
- Hepatic Surgery Center, and Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.,Clinical Medical Research Center of Hepatic Surgery at Hubei Province, Wuhan, Hubei, China
| | - Yonglong Pan
- Hepatic Surgery Center, and Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.,Clinical Medical Research Center of Hepatic Surgery at Hubei Province, Wuhan, Hubei, China
| | - Zhao Huang
- Hepatic Surgery Center, and Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.,Clinical Medical Research Center of Hepatic Surgery at Hubei Province, Wuhan, Hubei, China.,Key Laboratory of Organ Transplantation, Ministry of Education, Wuhan, China.,Key Laboratory of Organ Transplantation, National Health Commission, Wuhan, China.,Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China
| | - Huifang Liang
- Hepatic Surgery Center, and Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.,Clinical Medical Research Center of Hepatic Surgery at Hubei Province, Wuhan, Hubei, China
| | - Ze-Yang Ding
- Hepatic Surgery Center, and Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China. .,Clinical Medical Research Center of Hepatic Surgery at Hubei Province, Wuhan, Hubei, China. .,Key Laboratory of Organ Transplantation, Ministry of Education, Wuhan, China. .,Key Laboratory of Organ Transplantation, National Health Commission, Wuhan, China. .,Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China.
| | - Bixiang Zhang
- Hepatic Surgery Center, and Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China. .,Clinical Medical Research Center of Hepatic Surgery at Hubei Province, Wuhan, Hubei, China. .,Key Laboratory of Organ Transplantation, Ministry of Education, Wuhan, China. .,Key Laboratory of Organ Transplantation, National Health Commission, Wuhan, China. .,Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China.
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12
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STAT1 is regulated by TRIM24 and promotes immunosuppression in head and neck squamous carcinoma cells, but enhances T cell antitumour immunity in the tumour microenvironment. Br J Cancer 2022; 127:624-636. [PMID: 35595823 PMCID: PMC9381763 DOI: 10.1038/s41416-022-01853-z] [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: 08/27/2021] [Revised: 05/02/2022] [Accepted: 05/09/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Head and neck squamous cell carcinoma (HNSCC) is a significant problem and is frequently resistant to current treatments. STAT1 is important in anti-tumour immune responses against HNSCC. However, the role of STAT1 expression by tumour cells and its regulation during HNSCC is unclear. METHODS We determined the effects of STAT1 inhibition on tumour development and immunity in CAL27 and UMSCC22A HNSCC cell lines in vitro and in a HNSCC carcinogen-induced model in vivo. RESULTS STAT1 siRNA knockdown in human HNSCC cells impaired their proliferation and expression of the immunosuppressive marker PD-L1. Stat1-deficient mice displayed increased oral lesion incidence and multiplicity during tumour carcinogenesis in vivo. Immunosuppressive markers PD-1 in CD8+ T cells and PD-L1 in monocytic MDSCs and macrophages were reduced in oral tumours and draining lymph nodes of tumour-bearing Stat1-deficient mice. However, STAT1 was required for anti-tumour functions of T cells during HNSCC in vivo. Finally, we identified TRIM24 to be a negative regulator of STAT1 that plays a similar tumorigenic function to STAT1 in vitro and thus may be a potential target when treating HNSCC. CONCLUSION Our findings indicate that STAT1 activity plays an important role in tumorigenicity and immunosuppression during HNSCC development.
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13
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Abstract
PURPOSE OF REVIEW Loss of chromosome 7 has long been associated with adverse-risk myeloid malignancy. In the last decade, CUX1 has been identified as a critical tumor suppressor gene (TSG) located within a commonly deleted segment of chromosome arm 7q. Additional genes encoded on 7q have also been identified as bona fide myeloid tumor suppressors, further implicating chromosome 7 deletions in disease pathogenesis. This review will discuss the clinical implications of del(7q) and CUX1 mutations, both in disease and clonal hematopoiesis, and synthesize recent literature on CUX1 and other chromosome 7 TSGs. RECENT FINDINGS Two major studies, including a new mouse model, have been published that support a role for CUX1 inactivation in the development of myeloid neoplasms. Additional recent studies describe the cellular and hematopoietic effects from loss of the 7q genes LUC7L2 and KMT2C/MLL3, and the implications of chromosome 7 deletions in clonal hematopoiesis. SUMMARY Mounting evidence supports CUX1 as being a key chromosome 7 TSG. As 7q encodes additional myeloid regulators and tumor suppressors, improved models of chromosome loss are needed to interrogate combinatorial loss of these critical 7q genes.
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Affiliation(s)
| | - Megan E McNerney
- Department of Pathology
- Department of Pediatrics, Section of Hematology/Oncology
- The University of Chicago Medicine Comprehensive Cancer Center, The University of Chicago, Chicago, Illinois, USA
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14
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Baeten JT, Liu W, Preddy IC, Zhou N, McNerney ME. CRISPR screening in human hematopoietic stem and progenitor cells reveals an enrichment for tumor suppressor genes within chromosome 7 commonly deleted regions. Leukemia 2022; 36:1421-1425. [PMID: 35034954 DOI: 10.1038/s41375-021-01491-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 11/22/2021] [Accepted: 12/01/2021] [Indexed: 11/09/2022]
Affiliation(s)
- Jeremy T Baeten
- Department of Pathology, The University of Chicago Medicine Comprehensive Cancer Center, The University of Chicago, Chicago, IL, USA.,Department of Pediatrics, Section of Hematology/Oncology, The University of Chicago Medicine Comprehensive Cancer Center, The University of Chicago, Chicago, IL, USA
| | - Weihan Liu
- Department of Pathology, The University of Chicago Medicine Comprehensive Cancer Center, The University of Chicago, Chicago, IL, USA.,Department of Pediatrics, Section of Hematology/Oncology, The University of Chicago Medicine Comprehensive Cancer Center, The University of Chicago, Chicago, IL, USA
| | - Isabelle C Preddy
- Department of Pathology, The University of Chicago Medicine Comprehensive Cancer Center, The University of Chicago, Chicago, IL, USA.,Department of Pediatrics, Section of Hematology/Oncology, The University of Chicago Medicine Comprehensive Cancer Center, The University of Chicago, Chicago, IL, USA
| | - Ningxuan Zhou
- Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
| | - Megan E McNerney
- Department of Pathology, The University of Chicago Medicine Comprehensive Cancer Center, The University of Chicago, Chicago, IL, USA. .,Department of Pediatrics, Section of Hematology/Oncology, The University of Chicago Medicine Comprehensive Cancer Center, The University of Chicago, Chicago, IL, USA.
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15
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Yuan X, Tang H, Wu R, Li X, Jiang H, Liu Z, Zhang Z. Short-Chain Fatty Acids Calibrate RARα Activity Regulating Food Sensitization. Front Immunol 2021; 12:737658. [PMID: 34721398 PMCID: PMC8551578 DOI: 10.3389/fimmu.2021.737658] [Citation(s) in RCA: 7] [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: 07/07/2021] [Accepted: 09/20/2021] [Indexed: 01/01/2023] Open
Abstract
Gut-microbiota dysbiosis links to allergic diseases. The mechanism of the exacerbation of food allergy caused by gut-microbiota dysbiosis remains unknown. Regulation of retinoic acid receptor alpha (RARα) signaling is critical for gut immune homeostasis. Here we clarified that RARα in dendritic cells (DCs) promotes Th2 cell differentiation. Antibiotics treatment stimulates retinoic acid signaling in mucosal DCs. We found microbiota metabolites short-chain fatty acids (SCFAs) maintain IGF-1 levels in serum and mesenteric lymph nodes. The IGF-1/Akt pathway is essential for regulating the transcription of genes targeted by RARα. And RARα in DCs affects type I interferon (IFN-I) responses through regulating transcription of IFN-α. Our study identifies SCFAs crosstalk with RARα in dendritic cells as a critical modulator that plays a core role in promoting Th2 cells differentiation at a state of modified/disturbed microbiome.
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Affiliation(s)
- Xiefang Yuan
- Inflammation & Allergic Diseases Research Unit, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Hongmei Tang
- Inflammation & Allergic Diseases Research Unit, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Renlan Wu
- Inflammation & Allergic Diseases Research Unit, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Xingjie Li
- Inflammation & Allergic Diseases Research Unit, Affiliated Hospital of Southwest Medical University, Luzhou, China
- The School of Basic Medical Sciences, Southwest Medical University, Luzhou, China
| | - Hongyu Jiang
- Inflammation & Allergic Diseases Research Unit, Affiliated Hospital of Southwest Medical University, Luzhou, China
- The School of Basic Medical Sciences, Southwest Medical University, Luzhou, China
| | - Zhigang Liu
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen University School of Medicine, Shenzhen, China
| | - Zongde Zhang
- Inflammation & Allergic Diseases Research Unit, Affiliated Hospital of Southwest Medical University, Luzhou, China
- The School of Basic Medical Sciences, Southwest Medical University, Luzhou, China
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16
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Defining the Transcriptional Control of Pediatric AML Highlights RARA as a Super-Enhancer Regulated Druggable Dependency. Blood Adv 2021; 5:4864-4876. [PMID: 34543389 PMCID: PMC9153032 DOI: 10.1182/bloodadvances.2020003737] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 07/11/2021] [Indexed: 11/26/2022] Open
Abstract
The first enhancer mapping of pediatric AML reveals that the most common SE-associated signature is one driven by RARA. A RARA SE is common in pediatric AML and correlates to sensitivity to the retinoid tamibarotene both in vitro and in vivo.
Somatic mutations are rare in pediatric acute myeloid leukemia (pAML), indicating that alternate strategies are needed to identify targetable dependencies. We performed the first enhancer mapping of pAML in 22 patient samples. Generally, pAML samples were distinct from adult AML samples, and MLL (KMT2A)–rearranged samples were also distinct from non–KMT2A-rearranged samples. Focusing specifically on superenhancers (SEs), we identified SEs associated with many known leukemia regulators. The retinoic acid receptor alpha (RARA) gene was differentially regulated in our cohort, and a RARA-associated SE was detected in 64% of the study cohort across all cytogenetic and molecular subtypes tested. RARA SE+ pAML cell lines and samples exhibited high RARA messenger RNA levels. These samples were specifically sensitive to the synthetic RARA agonist tamibarotene in vitro, with slowed proliferation, apoptosis induction, differentiation, and upregulated retinoid target gene expression, compared with RARA SE− samples. Tamibarotene prolonged survival and suppressed the leukemia burden of an RARA SE+ pAML patient-derived xenograft mouse model compared with a RARA SE− patient-derived xenograft. Our work shows that examining chromatin regulation can identify new, druggable dependencies in pAML and provides a rationale for a pediatric tamibarotene trial in children with RARA-high AML.
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17
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Retinoids in hematology: a timely revival? Blood 2021; 137:2429-2437. [PMID: 33651885 DOI: 10.1182/blood.2020010100] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 02/17/2021] [Indexed: 12/27/2022] Open
Abstract
The retinoic acid receptors (RARA, RARB, and RARG) are ligand-regulated nuclear receptors that act as transcriptional switches. These master genes drew significant interest in the 1990s because of their key roles in embryogenesis and involvement in a rare malignancy, acute promyelocytic leukemia (APL), in which the RARA (and very rarely, RARG or RARB) genes are rearranged, underscoring the central role of deregulated retinoid signaling in leukemogenesis. Several recent provocative observations have revived interest in the roles of retinoids in non-APL acute myeloid leukemia (AML), as well as in normal hematopoietic differentiation. We review the role of retinoids in hematopoiesis, as well as in the treatment of non-APL AMLs. From this perspective, broader uses of retinoids in the management of hematopoietic tumors are discussed.
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18
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Transcriptomic Analysis Reveals Host miRNAs Correlated with Immune Gene Dysregulation during Fatal Disease Progression in the Ebola Virus Cynomolgus Macaque Disease Model. Microorganisms 2021; 9:microorganisms9030665. [PMID: 33806942 PMCID: PMC8005181 DOI: 10.3390/microorganisms9030665] [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: 02/25/2021] [Revised: 03/18/2021] [Accepted: 03/19/2021] [Indexed: 12/13/2022] Open
Abstract
Ebola virus is a continuing threat to human populations, causing a virulent hemorrhagic fever disease characterized by dysregulation of both the innate and adaptive host immune responses. Severe cases are distinguished by an early, elevated pro-inflammatory response followed by a pronounced lymphopenia with B and T cells unable to mount an effective anti-viral response. The precise mechanisms underlying the dysregulation of the host immune system are poorly understood. In recent years, focus on host-derived miRNAs showed these molecules to play an important role in the host gene regulation arsenal. Here, we describe an investigation of RNA biomarkers in the fatal Ebola virus disease (EVD) cynomolgus macaque model. We monitored both host mRNA and miRNA responses in whole blood longitudinally over the disease course in these non-human primates (NHPs). Analysis of the interactions between these classes of RNAs revealed several miRNA markers significantly correlated with downregulation of genes; specifically, the analysis revealed those involved in dysregulated immune pathways associated with EVD. In particular, we noted strong interactions between the miRNAs hsa-miR-122-5p and hsa-miR-125b-5p with immunological genes regulating both B and T-cell activation. This promising set of biomarkers will be useful in future studies of severe EVD pathogenesis in both NHPs and humans and may serve as potential prognostic targets.
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19
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Martin SK, Tomida J, Wood RD. Disruption of DNA polymerase ζ engages an innate immune response. Cell Rep 2021; 34:108775. [PMID: 33626348 PMCID: PMC7990024 DOI: 10.1016/j.celrep.2021.108775] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 12/22/2020] [Accepted: 01/29/2021] [Indexed: 01/07/2023] Open
Abstract
In mammalian cells, specialized DNA polymerase ζ (pol ζ) contributes to genomic stability during normal DNA replication. Disruption of the catalytic subunit Rev3l is toxic and results in constitutive chromosome damage, including micronuclei. As manifestations of this genomic stress are unknown, we examined the transcriptome of pol ζ-defective cells by RNA sequencing (RNA-seq). Expression of 1,117 transcripts is altered by ≥4-fold in Rev3l-disrupted cells, with a pattern consistent with an induction of an innate immune response. Increased expression of interferon-stimulated genes at the mRNA and protein levels in pol ζ-defective cells is driven by the cyclic guanosine monophosphate-adenosine monophosphate synthase (cGAS)-signaling partner stimulator of interferon genes (STING) pathway. Expression of key interferon-stimulated chemokines is elevated in basal epithelial mouse skin cells with a disruption of Rev3l. These results indicate that the disruption of pol ζ may simultaneously increase sensitivity to genotoxins and potentially engage parts of the innate immune response, which could add an additional benefit to targeting pol ζ in cancer therapies.
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Affiliation(s)
- Sara K Martin
- Department of Epigenetics & Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Smithville, TX 78507, USA; The University of Texas MD Anderson Cancer Center, UT Health Graduate School of Biomedical Sciences, Houston, TX, USA
| | - Junya Tomida
- Department of Epigenetics & Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Smithville, TX 78507, USA
| | - Richard D Wood
- Department of Epigenetics & Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Smithville, TX 78507, USA; The University of Texas MD Anderson Cancer Center, UT Health Graduate School of Biomedical Sciences, Houston, TX, USA.
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20
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Zhu Q, Yu T, Gan S, Wang Y, Pei Y, Zhao Q, Pei S, Hao S, Yuan J, Xu J, Hou F, Wu X, Peng C, Wu P, Qin J, Xiao Y. TRIM24 facilitates antiviral immunity through mediating K63-linked TRAF3 ubiquitination. J Exp Med 2021; 217:151700. [PMID: 32324863 PMCID: PMC7336305 DOI: 10.1084/jem.20192083] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/26/2020] [Accepted: 03/03/2020] [Indexed: 12/12/2022] Open
Abstract
Ubiquitination is an essential mechanism in the control of antiviral immunity upon virus infection. Here, we identify a series of ubiquitination-modulating enzymes that are modulated by vesicular stomatitis virus (VSV). Notably, TRIM24 is down-regulated through direct transcriptional suppression induced by VSV-activated IRF3. Reducing or ablating TRIM24 compromises type I IFN (IFN-I) induction upon RNA virus infection and thus renders mice more sensitive to VSV infection. Mechanistically, VSV infection induces abundant TRIM24 translocation to mitochondria, where TRIM24 binds with TRAF3 and directly mediates K63-linked TRAF3 ubiquitination at K429/K436. This modification of TRAF3 enables its association with MAVS and TBK1, which consequently activates downstream antiviral signaling. Together, these findings establish TRIM24 as a critical positive regulator in controlling the activation of antiviral signaling and describe a previously unknown mechanism of TRIM24 function.
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Affiliation(s)
- Qingchen Zhu
- Chinese Academy of Sciences Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Tao Yu
- Chinese Academy of Sciences Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Shucheng Gan
- Chinese Academy of Sciences Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Yan Wang
- Chinese Academy of Sciences Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Yifei Pei
- Chinese Academy of Sciences Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Qifan Zhao
- Chinese Academy of Sciences Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Siyu Pei
- Chinese Academy of Sciences Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Shumeng Hao
- Chinese Academy of Sciences Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Jia Yuan
- Chinese Academy of Sciences Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Jing Xu
- Chinese Academy of Sciences Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Fajian Hou
- State Key Laboratory of Molecular Biology, Chinese Academy of Sciences Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Xuefeng Wu
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chao Peng
- National Facility for Protein Science in Shanghai, Zhangjiang Lab, Shanghai, China
| | - Ping Wu
- National Facility for Protein Science in Shanghai, Zhangjiang Lab, Shanghai, China
| | - Jun Qin
- Chinese Academy of Sciences Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Yichuan Xiao
- Chinese Academy of Sciences Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
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21
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Wang L, Ning S. TRIMming Type I Interferon-Mediated Innate Immune Response in Antiviral and Antitumor Defense. Viruses 2021; 13:279. [PMID: 33670221 PMCID: PMC7916971 DOI: 10.3390/v13020279] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/04/2021] [Accepted: 02/09/2021] [Indexed: 12/17/2022] Open
Abstract
The tripartite motif (TRIM) family comprises at least 80 members in humans, with most having ubiquitin or SUMO E3 ligase activity conferred by their N-terminal RING domain. TRIMs regulate a wide range of processes in ubiquitination- or sumoylation-dependent manners in most cases, and fewer as adaptors. Their roles in the regulation of viral infections, autophagy, cell cycle progression, DNA damage and other stress responses, and carcinogenesis are being increasingly appreciated, and their E3 ligase activities are attractive targets for developing specific immunotherapeutic strategies for immune diseases and cancers. Given their importance in antiviral immune response, viruses have evolved sophisticated immune escape strategies to subvert TRIM-mediated mechanisms. In this review, we focus on their regulation of IFN-I-mediated innate immune response, which plays key roles in antiviral and antitumor defense.
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Affiliation(s)
- Ling Wang
- Department of Internal Medicine, Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA;
- Center of Excellence for Inflammation, Infectious Diseases and Immunity, Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
| | - Shunbin Ning
- Department of Internal Medicine, Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA;
- Center of Excellence for Inflammation, Infectious Diseases and Immunity, Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
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22
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Jeon J, Noh HJ, Lee H, Park HH, Ha YJ, Park SH, Lee H, Kim SJ, Kang HC, Eyun SI, Yang S, Kim YS. TRIM24-RIP3 axis perturbation accelerates osteoarthritis pathogenesis. Ann Rheum Dis 2020; 79:1635-1643. [PMID: 32895234 PMCID: PMC7677493 DOI: 10.1136/annrheumdis-2020-217904] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/24/2020] [Accepted: 08/04/2020] [Indexed: 12/22/2022]
Abstract
OBJECTIVES Recently, necroptosis has attracted increasing attention in arthritis research; however, it remains unclear whether its regulation is involved in osteoarthritis (OA) pathogenesis. Since receptor-interacting protein kinase-3 (RIP3) plays a pivotal role in necroptosis and its dysregulation is involved in various pathological processes, we investigated the role of the RIP3 axis in OA pathogenesis. METHODS Experimental OA was induced in wild-type or Rip3 knockout mice by surgery to destabilise the medial meniscus (DMM) or the intra-articular injection of adenovirus carrying a target gene (Ad-Rip3 and Ad-Trim24 shRNA). RIP3 expression was examined in OA cartilage from human patients; Trim24, a negative regulator of RIP3, was identified by microarray and in silico analysis. Connectivity map (CMap) and in silico binding approaches were used to identify RIP3 inhibitors and to examine their direct regulation of RIP3 activation in OA pathogenesis. RESULTS RIP3 expression was markedly higher in damaged cartilage from patients with OA than in undamaged cartilage. In the mouse model, adenoviral RIP3 overexpression accelerated cartilage disruption, whereas Rip3 depletion reduced DMM-induced OA pathogenesis. Additionally, TRIM24 knockdown upregulated RIP3 expression; its downregulation promoted OA pathogenesis in knee joint tissues. The CMap approach and in silico binding assay identified AZ-628 as a potent RIP3 inhibitor and demonstrated that it abolished RIP3-mediated OA pathogenesis by inhibiting RIP3 kinase activity. CONCLUSIONS TRIM24-RIP3 axis perturbation promotes OA chronicity by activating RIP3 kinase, suggesting that the therapeutic manipulation of this pathway could provide new avenues for treating OA.
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Affiliation(s)
- Jimin Jeon
- Department of Pharmacology, Ajou University School of Medicine, Suwon, Gyeonggi-do, Republic of Korea.,Department of Biomedical Sciences, Graduate School, Ajou University School of Medicine, Suwon, Republic of Korea.,CIRNO, Sungkyunkwan University, Suwon, Republic of Korea
| | - Hyun-Jin Noh
- Department of Biomedical Sciences, Graduate School, Ajou University School of Medicine, Suwon, Republic of Korea.,Department of Biochemistry & Molecular Biology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Hyemi Lee
- Department of Pharmacology, Ajou University School of Medicine, Suwon, Gyeonggi-do, Republic of Korea.,Department of Biomedical Sciences, Graduate School, Ajou University School of Medicine, Suwon, Republic of Korea.,CIRNO, Sungkyunkwan University, Suwon, Republic of Korea
| | - Han-Hee Park
- Department of Biomedical Sciences, Graduate School, Ajou University School of Medicine, Suwon, Republic of Korea.,Department of Biochemistry & Molecular Biology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Yu-Jin Ha
- Department of Biomedical Sciences, Graduate School, Ajou University School of Medicine, Suwon, Republic of Korea.,Department of Biochemistry & Molecular Biology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Seok Hee Park
- CIRNO, Sungkyunkwan University, Suwon, Republic of Korea.,Department of Biological Sciences, Sungkyunkwan University, Suwon, Republic of Korea
| | - Haeseung Lee
- Intellectual Information Team, Future Medicine Division, Korea Institute of Oriental Medicine, Daejeon, Republic of Korea
| | - Seok-Jung Kim
- Department of Orthopaedic Surgery, Uijeongbu St. Mary's Hospital, The Catholic University of Korea College of Medicine, Uijeongbu, Republic of Korea
| | - Ho Chul Kang
- Department of Biomedical Sciences, Graduate School, Ajou University School of Medicine, Suwon, Republic of Korea.,Department of Physiology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Seong-Il Eyun
- Department of Life Science, Chung-Ang University, Seoul, Republic of Korea
| | - Siyoung Yang
- Department of Pharmacology, Ajou University School of Medicine, Suwon, Gyeonggi-do, Republic of Korea .,Department of Biomedical Sciences, Graduate School, Ajou University School of Medicine, Suwon, Republic of Korea.,CIRNO, Sungkyunkwan University, Suwon, Republic of Korea
| | - You-Sun Kim
- Department of Biomedical Sciences, Graduate School, Ajou University School of Medicine, Suwon, Republic of Korea .,Department of Biochemistry & Molecular Biology, Ajou University School of Medicine, Suwon, Republic of Korea
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23
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Li C, Xin H, Shi Y, Mu J. Knockdown of TRIM24 suppresses growth and induces apoptosis in acute myeloid leukemia through downregulation of Wnt/GSK-3β/β-catenin signaling. Hum Exp Toxicol 2020; 39:1725-1736. [PMID: 32672070 DOI: 10.1177/0960327120938845] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Tripartite motif-containing protein 24 (TRIM24) has currently emerged as a crucial cancer-related gene present in a wide range of human cancer types. However, the involvement of TRIM24 in acute myeloid leukemia (AML) has not been well investigated. The present study aims to investigate the significance, cellular function, and potential regulatory mechanism of TRIM24 in AML. We found that TRIM24 expression was significantly upregulated in AML compared with normal tissues. AML patients with low expression of TRIM24 had higher survival rates than those expressing TRIM24 at higher levels. High expression of TRIM24 was also detected in AML cells and its knockdown markedly restricted proliferation and promoted apoptosis in AML cells. Further investigation revealed that TRIM24 contributed to the regulation of Wnt/β-catenin signaling, which was associated with modulating the phosphorylation status of glycogen synthase kinase-3β (GSK-3β). Inactivation of GSK-3β partially reversed the TRIM24 knockdown-mediated antitumor effects observed in AML cells. Furthermore, knockdown of TRIM24 retarded the growth of AML-derived xenograft tumors in nude mice in vivo. Overall, these findings demonstrate that knockdown of TRIM24 impedes the AML tumor growth through the modulation of Wnt/GSK-3β/β-catenin signaling. These findings highlight the potential TRIM24 as an attractive anticancer target to treat AML.
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Affiliation(s)
- C Li
- Department of General Practice, 162798The First Affiliated Hospital of Xi'an Medical University, Xi'an, China.,Department of Cardiology, 162798The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - H Xin
- Department of Cardiology, 162798The First Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - Y Shi
- Department of General Practice, 162798The First Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - J Mu
- Department of Cardiology, 162798The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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24
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The E3 ubiquitin ligase MARCH1 regulates antimalaria immunity through interferon signaling and T cell activation. Proc Natl Acad Sci U S A 2020; 117:16567-16578. [PMID: 32606244 DOI: 10.1073/pnas.2004332117] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Malaria infection induces complex and diverse immune responses. To elucidate the mechanisms underlying host-parasite interaction, we performed a genetic screen during early (24 h) Plasmodium yoelii infection in mice and identified a large number of interacting host and parasite genes/loci after transspecies expression quantitative trait locus (Ts-eQTL) analysis. We next investigated a host E3 ubiquitin ligase gene (March1) that was clustered with interferon (IFN)-stimulated genes (ISGs) based on the similarity of the genome-wide pattern of logarithm of the odds (LOD) scores (GPLS). March1 inhibits MAVS/STING/TRIF-induced type I IFN (IFN-I) signaling in vitro and in vivo. However, in malaria-infected hosts, deficiency of March1 reduces IFN-I production by activating inhibitors such as SOCS1, USP18, and TRIM24 and by altering immune cell populations. March1 deficiency increases CD86+DC (dendritic cell) populations and levels of IFN-γ and interleukin 10 (IL-10) at day 4 post infection, leading to improved host survival. T cell depletion reduces IFN-γ level and reverse the protective effects of March1 deficiency, which can also be achieved by antibody neutralization of IFN-γ. This study reveals functions of MARCH1 (membrane-associated ring-CH-type finger 1) in innate immune responses and provides potential avenues for activating antimalaria immunity and enhancing vaccine efficacy.
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Overexpression of PSAT1 promotes metastasis of lung adenocarcinoma by suppressing the IRF1-IFNγ axis. Oncogene 2020; 39:2509-2522. [PMID: 31988456 DOI: 10.1038/s41388-020-1160-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 12/26/2019] [Accepted: 01/15/2020] [Indexed: 12/16/2022]
Abstract
An increasing number of enzymes involved in serine biosynthesis have been identified and correlated with malignant evolution in various types of cancer. Here we showed that the overexpression of phosphoserine aminotransferase 1 (PSAT1) is widely found in lung cancer tissues compared with nontumor tissues and predicts a poorer prognosis in patients with lung adenocarcinoma. PSAT1 expression was examined in a tissue microarray by immunohistochemistry. The data show that the knockdown of PSAT1 dramatically inhibits the in vitro and in vivo metastatic potential of highly metastatic lung cancer cells; conversely, the enforced expression of exogenous PSAT1 predominantly enhances the metastatic potential of lung cancer cells. Importantly, manipulating PSAT1 expression regulates the in vivo tumor metastatic abilities in lung cancer cells. Adjusting the glucose and glutamine concentrations did not alter the PSAT1-driven cell invasion properties, indicating that this process might not rely on the activation of its enzymatic function. RNA microarray analysis of transcriptional profiling from PSAT1 alternation in CL1-5 and CL1-0 cells demonstrated that interferon regulatory factor 1 (IRF1) acts as a crucial regulator of PSAT1-induced gene expression upon metastatic progression. Decreasing the IRF1-IFIH1 axis compromised the PSAT1-prompted transcriptional reprogramming in cancer cells. Our results identify PSAT1 as a key regulator by a novel PSAT1/IRF1 axis in lung cancer progression, which may serve as a potential biomarker and therapeutic target for the treatment of lung cancer patients.
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Khaliullin TO, Yanamala N, Newman MS, Kisin ER, Fatkhutdinova LM, Shvedova AA. Comparative analysis of lung and blood transcriptomes in mice exposed to multi-walled carbon nanotubes. Toxicol Appl Pharmacol 2020; 390:114898. [PMID: 31978390 DOI: 10.1016/j.taap.2020.114898] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/16/2020] [Accepted: 01/21/2020] [Indexed: 12/16/2022]
Abstract
Pulmonary exposure to multi-walled carbon nanotubes (MWCNT) causes inflammation, fibroproliferation, immunotoxicity, and systemic responses in rodents. However, the search for representative biomarkers of exposure is an ongoing endeavor. Whole blood gene expression profiling is a promising new approach for the identification of novel disease biomarkers. We asked if the whole blood transcriptome reflects pathology-specific changes in lung gene expression caused by MWCNT. To answer this question, we performed mRNA sequencing analysis of the whole blood and lung in mice administered MWCNT or vehicle solution via pharyngeal aspiration and sacrificed 56 days later. The pattern of lung mRNA expression as determined using Ingenuity Pathway Analysis (IPA) was indicative of continued inflammation, immune cell trafficking, phagocytosis, and adaptive immune responses. Simultaneously, innate immunity-related transcripts (Plunc, Bpifb1, Reg3g) and cancer-related pathways were downregulated. IPA analysis of the differentially expressed genes in the whole blood suggested increased hematopoiesis, predicted activation of cancer/tumor development pathways, and atopy. There were several common upregulated genes between whole blood and lungs, important for adaptive immune responses: Cxcr1, Cd72, Sharpin, and Slc11a1. Trim24, important for TH2 cell effector function, was downregulated in both datasets. Hla-dqa1 mRNA was upregulated in the lungs and downregulated in the blood, as was Lilrb4, which controls the reactivity of immune response. "Cancer" disease category had opposing activation status in the two datasets, while the only commonality was "Hypersensitivity". Transcriptome changes occurring in the lungs did not produce a completely replicable pattern in whole blood; however, specific systemic responses may be shared between transcriptomic profiles.
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Affiliation(s)
- Timur O Khaliullin
- Department of Physiology and Pharmacology, West Virginia University, Morgantown, WV, USA; Health Effects Laboratory Division, NIOSH, CDC, Morgantown, WV, USA.
| | - Naveena Yanamala
- Health Effects Laboratory Division, NIOSH, CDC, Morgantown, WV, USA.
| | - Mackenzie S Newman
- Department of Physiology and Pharmacology, West Virginia University, Morgantown, WV, USA.
| | - Elena R Kisin
- Health Effects Laboratory Division, NIOSH, CDC, Morgantown, WV, USA.
| | - Liliya M Fatkhutdinova
- Department of Hygiene and Occupational Medicine, Kazan State Medical University, Kazan, Russia
| | - Anna A Shvedova
- Department of Physiology and Pharmacology, West Virginia University, Morgantown, WV, USA; Health Effects Laboratory Division, NIOSH, CDC, Morgantown, WV, USA.
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Jiang Y, Wang X, Dong C. Molecular mechanisms of T helper 17 cell differentiation: Emerging roles for transcription cofactors. Adv Immunol 2019; 144:121-153. [PMID: 31699215 DOI: 10.1016/bs.ai.2019.09.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
T helper 17 (Th17) cells, characterized by secretion of IL-17 and IL-17F, are a specialized CD4+ effector T cell lineage that not only facilitates host defense against pathogen infection and maintenance of mucosal barrier, but also potently induces tissue inflammation and autoimmune diseases. Since its discovery in 2005, the developmental program of Th17 cells has been characterized, which involves a number of key cytokines, transcription factors and multiple layers of epigenetic modifications. However, how these mechanisms integrate into the complex regulatory network in Th17 cells has not been well defined. Emerging evidences have revealed essential roles of cofactors in controlling chromosome accessibilities and activities of Th17-specific transcription factors. Moreover, cofactors also act as critical signaling integrators to coordinate multiple signaling pathways and transcriptional programs. Deficiency or dysregulation of these cofactors results in defects in Th17 responses and induction of associated autoimmune diseases. Our lab has recently reported several important cofactors in Th17 cells. Here we summarize our findings regarding this new scenario of developmental regulation of Th17 cells. These findings may benefit the development of innovative strategies to treat autoimmune diseases.
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Affiliation(s)
- Yu Jiang
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing, China
| | - Xiaohu Wang
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing, China
| | - Chen Dong
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing, China; Beijing Key Lab for Immunological Research on Chronic Diseases, Beijing, China.
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Combating viral contaminants in CHO cells by engineering innate immunity. Sci Rep 2019; 9:8827. [PMID: 31222165 PMCID: PMC6586939 DOI: 10.1038/s41598-019-45126-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 05/31/2019] [Indexed: 12/19/2022] Open
Abstract
Viral contamination in biopharmaceutical manufacturing can lead to shortages in the supply of critical therapeutics. To facilitate the protection of bioprocesses, we explored the basis for the susceptibility of CHO cells to RNA virus infection. Upon infection with certain ssRNA and dsRNA viruses, CHO cells fail to generate a significant interferon (IFN) response. Nonetheless, the downstream machinery for generating IFN responses and its antiviral activity is intact in these cells: treatment of cells with exogenously-added type I IFN or poly I:C prior to infection limited the cytopathic effect from Vesicular stomatitis virus (VSV), Encephalomyocarditis virus (EMCV), and Reovirus-3 virus (Reo-3) in a STAT1-dependent manner. To harness the intrinsic antiviral mechanism, we used RNA-Seq to identify two upstream repressors of STAT1: Gfi1 and Trim24. By knocking out these genes, the engineered CHO cells exhibited activation of cellular immune responses and increased resistance to the RNA viruses tested. Thus, omics-guided engineering of mammalian cell culture can be deployed to increase safety in biotherapeutic protein production among many other biomedical applications.
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Bai J, Li K, Tang W, Liang Z, Wang X, Feng W, Zhang S, Ren L, Wu S, Han H, Zhao Y. A high-throughput screen for genes essential for PRRSV infection using a piggyBac-based system. Virology 2019; 531:19-30. [DOI: 10.1016/j.virol.2019.03.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 03/02/2019] [Accepted: 03/02/2019] [Indexed: 01/11/2023]
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Kim Y, Song KS, Sohn EH, Kang SW, Yoo IS, Shim SC, Yoo SJ, Kim J. Anti-TIF1γ antibody and the expression of TIF1γ in idiopathic inflammatory myopathies. Int J Rheum Dis 2018; 22:314-320. [DOI: 10.1111/1756-185x.13424] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 07/26/2018] [Accepted: 09/28/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Young Kim
- Department of Internal Medicine; Daejeon Veterans Hospital; Daejeon Korea
| | - Kyu Sang Song
- Department of Pathology; Chungnam National University College of Medicine; Daejeon Korea
| | - Eun Hee Sohn
- Department of Neurology; Chungnam National University College of Medicine; Daejeon Korea
| | - Seong Wook Kang
- Department of Internal Medicine; Chungnam National University College of Medicine; Daejeon Korea
| | - In Seol Yoo
- Department of Internal Medicine; Chungnam National University College of Medicine; Daejeon Korea
| | - Seung-Cheol Shim
- Department of Internal Medicine; Chungnam National University College of Medicine; Daejeon Korea
| | - Su-Jin Yoo
- Department of Internal Medicine; Chungnam National University College of Medicine; Daejeon Korea
| | - Jinhyun Kim
- Department of Internal Medicine; Chungnam National University College of Medicine; Daejeon Korea
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Thompson JJ, Kaur R, Sosa CP, Lee JH, Kashiwagi K, Zhou D, Robertson KD. ZBTB24 is a transcriptional regulator that coordinates with DNMT3B to control DNA methylation. Nucleic Acids Res 2018; 46:10034-10051. [PMID: 30085123 PMCID: PMC6212772 DOI: 10.1093/nar/gky682] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 06/29/2018] [Accepted: 07/17/2018] [Indexed: 12/12/2022] Open
Abstract
The interplay between transcription factors and epigenetic writers like the DNA methyltransferases (DNMTs), and the role of this interplay in gene expression, is being increasingly appreciated. ZBTB24, a poorly characterized zinc-finger protein, or the de novo methyltransferase DNMT3B, when mutated, cause Immunodeficiency, Centromere Instability, and Facial anomalies (ICF) syndrome, suggesting an underlying mechanistic link. Chromatin immunoprecipitation coupled with loss-of-function approaches in model systems revealed common loci bound by ZBTB24 and DNMT3B, where they function to regulate gene body methylation. Genes coordinately regulated by ZBTB24 and DNMT3B are enriched for molecular mechanisms essential for cellular homeostasis, highlighting the importance of the ZBTB24-DNMT3B interplay in maintaining epigenetic patterns required for normal cellular function. We identify a ZBTB24 DNA binding motif, which is contained within the promoters of most of its transcriptional targets, including CDCA7, AXIN2, and OSTC. Direct binding of ZBTB24 at the promoters of these genes targets them for transcriptional activation. ZBTB24 binding at the promoters of RNF169 and CAMKMT, however, targets them for transcriptional repression. The involvement of ZBTB24 targets in diverse cellular programs, including the VDR/RXR and interferon regulatory pathways, suggest that ZBTB24's role as a transcriptional regulator is not restricted to immune cells.
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Affiliation(s)
- Joyce J Thompson
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, 200 First Street SW, Stabile 12-58, Rochester, MN 55905, USA
| | - Rupinder Kaur
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, 200 First Street SW, Stabile 12-58, Rochester, MN 55905, USA
| | - Carlos P Sosa
- Clinical Genome Sequencing Laboratory, Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Stabile12-58, Rochester, MN 55905, USA
| | - Jeong-Heon Lee
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA
- Epigenomics Translational Program, Mayo Clinic, Rochester, MN 55905, USA
| | - Katsunobu Kashiwagi
- Department of Physiology II, Nara Medical University, Kashihara, Nara 634-8521, Japan
| | - Dan Zhou
- Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Keith D Robertson
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, 200 First Street SW, Stabile 12-58, Rochester, MN 55905, USA
- Epigenomics Translational Program, Mayo Clinic, Rochester, MN 55905, USA
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Xia L, Wu J, Pattaradilokrat S, Tumas K, He X, Peng YC, Huang R, Myers TG, Long CA, Wang R, Su XZ. Detection of host pathways universally inhibited after Plasmodium yoelii infection for immune intervention. Sci Rep 2018; 8:15280. [PMID: 30327482 PMCID: PMC6191451 DOI: 10.1038/s41598-018-33599-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 09/26/2018] [Indexed: 12/16/2022] Open
Abstract
Malaria is a disease with diverse symptoms depending on host immune status and pathogenicity of Plasmodium parasites. The continuous parasite growth within a host suggests mechanisms of immune evasion by the parasite and/or immune inhibition in response to infection. To identify pathways commonly inhibited after malaria infection, we infected C57BL/6 mice with four Plasmodium yoelii strains causing different disease phenotypes and 24 progeny of a genetic cross. mRNAs from mouse spleens day 1 and/or day 4 post infection (p.i.) were hybridized to a mouse microarray to identify activated or inhibited pathways, upstream regulators, and host genes playing an important role in malaria infection. Strong interferon responses were observed after infection with the N67 strain, whereas initial inhibition and later activation of hematopoietic pathways were found after infection with 17XNL parasite, showing unique responses to individual parasite strains. Inhibitions of pathways such as Th1 activation, dendritic cell (DC) maturation, and NFAT immune regulation were observed in mice infected with all the parasite strains day 4 p.i., suggesting universally inhibited immune pathways. As a proof of principle, treatment of N67-infected mice with antibodies against T cell receptors OX40 or CD28 to activate the inhibited pathways enhanced host survival. Controlled activation of these pathways may provide important strategies for better disease management and for developing an effective vaccine.
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Affiliation(s)
- Lu Xia
- Malaria Functional Genomics Section, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, 20892-8132, USA.,State Key Laboratory of Medical Genetics, Xiangya School of Medicine, Central South University, Changsha, Hunan, 410078, The People's Republic of China
| | - Jian Wu
- Malaria Functional Genomics Section, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, 20892-8132, USA
| | - Sittiporn Pattaradilokrat
- Malaria Functional Genomics Section, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, 20892-8132, USA.,Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Keyla Tumas
- Malaria Functional Genomics Section, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, 20892-8132, USA
| | - Xiao He
- Malaria Functional Genomics Section, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, 20892-8132, USA
| | - Yu-Chih Peng
- Malaria Functional Genomics Section, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, 20892-8132, USA
| | - Ruili Huang
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, 20892-8132, USA
| | - Timothy G Myers
- Genomic Technologies Section, Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892-8132, USA
| | - Carole A Long
- Malaria Functional Genomics Section, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, 20892-8132, USA
| | - Rongfu Wang
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX, 77030, USA
| | - Xin-Zhuan Su
- Malaria Functional Genomics Section, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, 20892-8132, USA.
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Abstract
Tripartite motif (TRIM) proteins are a versatile family of ubiquitin E3 ligases involved in a multitude of cellular processes. Studies in recent years have demonstrated that many TRIM proteins play central roles in the host defense against viral infection. While some TRIM proteins directly antagonize distinct steps in the viral life cycle, others regulate signal transduction pathways induced by innate immune sensors, thereby modulating antiviral cytokine responses. Furthermore, TRIM proteins have been implicated in virus-induced autophagy and autophagy-mediated viral clearance. Given the important role of TRIM proteins in antiviral restriction, it is not surprising that several viruses have evolved effective maneuvers to neutralize the antiviral action of specific TRIM proteins. Here, we describe the major antiviral mechanisms of TRIM proteins as well as viral strategies to escape TRIM-mediated host immunity.
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Affiliation(s)
- Michiel van Gent
- Department of Microbiology, The University of Chicago, Chicago, Illinois 60637, USA; , ,
| | - Konstantin M J Sparrer
- Department of Microbiology, The University of Chicago, Chicago, Illinois 60637, USA; , ,
| | - Michaela U Gack
- Department of Microbiology, The University of Chicago, Chicago, Illinois 60637, USA; , ,
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Abstract
Tripartite motif-containing 14 (TRIM14) is abnormally expressed in several human cancers. However, the function and expression of TRIM14 in human breast cancer are still largely unknown. To understand the biological function of TRIM14 in breast cancer, we measured the expression level of TRIM14. Cell proliferation and cell apoptosis were measured after TRIM14 overexpression or knockdown. Upregulation of TRIM14 was found in human breast cancer specimens and cell lines. Reduction of TRIM14 inhibited cell proliferation but increased cell apoptosis in the BT474 and MDA-MB-231 cell lines. Further study showed that knockdown of TRIM14 upregulated the expression of BAX while downregulating the expression of BCL2. In addition, the expression of SHP-1 was increased, and the phosphorylation of STAT3 (p-STAT3) was inhibited. Conversely, overexpression of TRIM14 had the opposite effects. Additionally, cryptotanshinone, a STAT3 inhibitor, inhibited cell proliferation but increased cell apoptosis in the BT474 and MDA-MB-231 cell lines. In conclusion, TRIM14 may act as an oncogene in human breast cancer and may be a novel strategy for human breast cancer.
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Affiliation(s)
- Gaowu Hu
- Department of General Surgery, Shanghai Traditional Chinese Medicine-Integrated Hospital, Shanghai, P.R. China
| | - Wei Pen
- Department of General Surgery, Shanghai Traditional Chinese Medicine-Integrated Hospital, Shanghai, P.R. China
| | - Ming Wang
- Department of General Surgery, Shanghai Traditional Chinese Medicine-Integrated Hospital, Shanghai, P.R. China
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Functional TRIM24 degrader via conjugation of ineffectual bromodomain and VHL ligands. Nat Chem Biol 2018; 14:405-412. [PMID: 29507391 PMCID: PMC5866761 DOI: 10.1038/s41589-018-0010-y] [Citation(s) in RCA: 163] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 01/05/2018] [Indexed: 01/17/2023]
Abstract
The addressable pocket of a protein is often not functionally relevant in disease. This is true for the multidomain, bromodomain-containing transcriptional regulator TRIM24. TRIM24 has been posited as a dependency in numerous cancers, yet potent and selective ligands for the TRIM24 bromodomain do not exert effective anti-proliferative responses. We therefore repositioned these probes as targeting features for heterobifunctional protein degraders. Recruitment of the VHL E3 ubiquitin ligase by dTRIM24 elicits potent and selective degradation of TRIM24. Using dTRIM24 to probe TRIM24 function, we characterize the dynamic genome-wide consequences of TRIM24 loss on chromatin localization and gene control. Further, we identify TRIM24 as a novel dependency in acute leukemia. Pairwise study of TRIM24 degradation versus bromodomain inhibition reveals enhanced anti-proliferative response from degradation. We offer dTRIM24 as a chemical probe of an emerging cancer dependency, and establish a path forward for numerous selective yet ineffectual ligands for proteins of therapeutic interest.
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Halstead ES, Umstead TM, Davies ML, Kawasawa YI, Silveyra P, Howyrlak J, Yang L, Guo W, Hu S, Hewage EK, Chroneos ZC. GM-CSF overexpression after influenza a virus infection prevents mortality and moderates M1-like airway monocyte/macrophage polarization. Respir Res 2018; 19:3. [PMID: 29304863 PMCID: PMC5756339 DOI: 10.1186/s12931-017-0708-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 12/18/2017] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Influenza A viruses cause life-threatening pneumonia and lung injury in the lower respiratory tract. Application of high GM-CSF levels prior to infection has been shown to reduce morbidity and mortality from pathogenic influenza infection in mice, but the mechanisms of protection and treatment efficacy have not been established. METHODS Mice were infected intranasally with influenza A virus (PR8 strain). Supra-physiologic levels of GM-CSF were induced in the airways using the double transgenic GM-CSF (DTGM) or littermate control mice starting on 3 days post-infection (dpi). Assessment of respiratory mechanical parameters was performed using the flexiVent rodent ventilator. RNA sequence analysis was performed on FACS-sorted airway macrophage subsets at 8 dpi. RESULTS Supra-physiologic levels of GM-CSF conferred a survival benefit, arrested the deterioration of lung mechanics, and reduced the abundance of protein exudates in bronchoalveolar (BAL) fluid to near baseline levels. Transcriptome analysis, and subsequent validation ELISA assays, revealed that excess GM-CSF re-directs macrophages from an "M1-like" to a more "M2-like" activation state as revealed by alterations in the ratios of CXCL9 and CCL17 in BAL fluid, respectively. Ingenuity pathway analysis predicted that GM-CSF surplus during IAV infection elicits expression of anti-inflammatory mediators and moderates M1 macrophage pro-inflammatory signaling by Type II interferon (IFN-γ). CONCLUSIONS Our data indicate that application of high levels of GM-CSF in the lung after influenza A virus infection alters pathogenic "M1-like" macrophage inflammation. These results indicate a possible therapeutic strategy for respiratory virus-associated pneumonia and acute lung injury.
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Affiliation(s)
- E. Scott Halstead
- Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, PA USA
- Pulmonary Immunology and Physiology Laboratory, Pennsylvania State University College of Medicine, Hershey, PA USA
| | - Todd M. Umstead
- Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, PA USA
- Pulmonary Immunology and Physiology Laboratory, Pennsylvania State University College of Medicine, Hershey, PA USA
| | - Michael L. Davies
- Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, PA USA
- Pulmonary Immunology and Physiology Laboratory, Pennsylvania State University College of Medicine, Hershey, PA USA
| | - Yuka Imamura Kawasawa
- Departments of Pharmacology & Biochemistry and Molecular Biology, Institute for Personalized Medicine, Pennsylvania State University College of Medicine, Hershey, PA USA
| | - Patricia Silveyra
- Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, PA USA
- Pulmonary Immunology and Physiology Laboratory, Pennsylvania State University College of Medicine, Hershey, PA USA
| | - Judie Howyrlak
- Departments of Medicine and Public Health Sciences, Pennsylvania State University College of Medicine, Hershey, PA USA
| | - Linlin Yang
- Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, PA USA
- Pulmonary Immunology and Physiology Laboratory, Pennsylvania State University College of Medicine, Hershey, PA USA
| | - Weichao Guo
- Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, PA USA
- Pulmonary Immunology and Physiology Laboratory, Pennsylvania State University College of Medicine, Hershey, PA USA
| | - Sanmei Hu
- Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, PA USA
- Pulmonary Immunology and Physiology Laboratory, Pennsylvania State University College of Medicine, Hershey, PA USA
| | - Eranda Kurundu Hewage
- Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, PA USA
- Pulmonary Immunology and Physiology Laboratory, Pennsylvania State University College of Medicine, Hershey, PA USA
| | - Zissis C. Chroneos
- Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, PA USA
- Pulmonary Immunology and Physiology Laboratory, Pennsylvania State University College of Medicine, Hershey, PA USA
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine, Hershey, PA USA
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Peromyscus leucopus mouse brain transcriptome response to Powassan virus infection. J Neurovirol 2017; 24:75-87. [PMID: 29147886 PMCID: PMC5790856 DOI: 10.1007/s13365-017-0596-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 09/29/2017] [Accepted: 10/25/2017] [Indexed: 12/30/2022]
Abstract
Powassan virus (POWV) is a tick-borne Flavivirus responsible for life-threatening encephalitis in North America and some regions of Russia. The ticks that have been reported to transmit the virus belong to the Ixodes species, and they feed on small-to-medium-sized mammals, such as Peromyscus leucopus mice, skunks, and woodchucks. We previously developed a P. leucopus mouse model of POWV infection, and the model is characterized by a lack of clinical signs of disease following intraperitoneal or intracranial inoculation. However, intracranial inoculation results in mild subclinical encephalitis from 5 days post infection (dpi), but the encephalitis resolves by 28 dpi. We used RNA sequencing to profile the P. leucopus mouse brain transcriptome at different time points after intracranial challenge with POWV. At 24 h post infection, 42 genes were significantly differentially expressed and the number peaked to 232 at 7 dpi before declining to 31 at 28 dpi. Using Ingenuity Pathway Analysis, we determined that the genes that were significantly expressed from 1 to 15 dpi were mainly associated with interferon signaling. As a result, many interferon-stimulated genes (ISGs) were upregulated. Some of the ISGs include an array of TRIMs (genes encoding tripartite motif proteins). These results will be useful for the identification of POWV restriction factors.
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Clinical significance and prognostic value of TRIM24 expression in esophageal squamous cell carcinoma. Aging (Albany NY) 2017; 8:2204-2221. [PMID: 27689360 PMCID: PMC5076458 DOI: 10.18632/aging.101037] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 09/12/2016] [Indexed: 01/28/2023]
Abstract
Tripartite motif-containing 24 (TRIM24), a member of the transcription intermediary factor 1 family, is defined as a co-regulator with several nuclear receptors, such as RARα. TRIM24 has been reported to be involved in many cancers. In this study, we aimed to investigate the expression pattern and prognostic significance of TRIM24 and its relationship with RARα in esophageal squamous cell cancer (ESCC). Both mRNA and protein expression levels of TRIM24 were found to be significantly decreased in ESCC, as judged by qRT-PCR and western blot. Immunohistochemistry staining shows that the reduced TRIM24 protein is associated with lymph node metastasis (P=0.024), advance pathological TNM (pTNM) stage (P=0.046) and recurrence/metastasis (P=0.001). Upregulated TRIM24 protein predicts longer overall survival and disease-free survival (both P<0.001) and is an independent predictor for good prognosis (HR, 0.519; 95%CI, 0.341-0.788; P=0.002). TRIM24 expression has been proven remarkably to improve prediction of survival of pTNM stage in ESCC patients, especially in stage I and II. However, no significant relationship was found between TRIM24 and RARα expression levels. In conclusion, reduced TRIM24 protein is associated with poor survival in ESCC patients, suggesting TRIM24 protein is a potential prognostic biomarker for ESCC.
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The TRIMendous Role of TRIMs in Virus-Host Interactions. Vaccines (Basel) 2017; 5:vaccines5030023. [PMID: 28829373 PMCID: PMC5620554 DOI: 10.3390/vaccines5030023] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 08/09/2017] [Accepted: 08/17/2017] [Indexed: 12/23/2022] Open
Abstract
The innate antiviral response is integral in protecting the host against virus infection. Many proteins regulate these signaling pathways including ubiquitin enzymes. The ubiquitin-activating (E1), -conjugating (E2), and -ligating (E3) enzymes work together to link ubiquitin, a small protein, onto other ubiquitin molecules or target proteins to mediate various effector functions. The tripartite motif (TRIM) protein family is a group of E3 ligases implicated in the regulation of a variety of cellular functions including cell cycle progression, autophagy, and innate immunity. Many antiviral signaling pathways, including type-I interferon and NF-κB, are TRIM-regulated, thus influencing the course of infection. Additionally, several TRIMs directly restrict viral replication either through proteasome-mediated degradation of viral proteins or by interfering with different steps of the viral replication cycle. In addition, new studies suggest that TRIMs can exert their effector functions via the synthesis of unconventional polyubiquitin chains, including unanchored (non-covalently attached) polyubiquitin chains. TRIM-conferred viral inhibition has selected for viruses that encode direct and indirect TRIM antagonists. Furthermore, new evidence suggests that the same antagonists encoded by viruses may hijack TRIM proteins to directly promote virus replication. Here, we describe numerous virus–TRIM interactions and novel roles of TRIMs during virus infections.
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Pandey A, Sahu AR, Wani SA, Saxena S, Kanchan S, Sah V, Rajak KK, Khanduri A, Sahoo AP, Tiwari AK, Mishra B, Muthuchelvan D, Mishra BP, Singh RK, Gandham RK. Modulation of Host miRNAs Transcriptome in Lung and Spleen of Peste des Petits Ruminants Virus Infected Sheep and Goats. Front Microbiol 2017; 8:1146. [PMID: 28694795 PMCID: PMC5483481 DOI: 10.3389/fmicb.2017.01146] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 06/06/2017] [Indexed: 12/16/2022] Open
Abstract
Peste des petits ruminants (PPR) is one of the highly contagious viral disease, characterized by fever, sore mouth, conjunctivitis, gastroenteritis, and pneumonia, primarily affecting sheep and goats. Reports suggested variable host response in goats and sheep and this host response vis-a-vis the expression of microRNAs (miRNAs) has not been investigated. Here, miRNAs were sequenced and proteomics data were generated to identify the role of differentially expressed miRNA (DEmiRNA) in PPR virus (PPRV) infected lung and spleen tissues of sheep and goats. In lungs, 67 and 37 DEmiRNAs have been identified in goats and sheep, respectively. Similarly, in spleen, 50 and 56 DEmiRNAs were identified in goats and sheep, respectively. A total of 20 and 11 miRNAs were found to be common differentially expressed in both the species in PPRV infected spleen and lung, respectively. Six DEmiRNAs—miR-21-3p, miR-1246, miR-27a-5p, miR-760-3p, miR-320a, and miR-363 were selected based on their role in viral infections, apoptosis, and fold change. The target prediction analysis of these six selected DEmiRNAs from the proteome data generated, revealed involvement of more number of genes in lung and spleen of goats than in sheep. On gene ontology analysis of host target genes these DEmiRNAs were found to regulate several immune response signaling pathways. It was observed that the pathways viz. T cell receptor signaling, Rap1 signaling, Toll-like receptor signaling, and B cell receptor signaling governed by DEmiRNAs were more perturbed in goats than in sheep. The data suggests that PPRV-induced miR-21-3p, miR-320a, and miR-363 might act cooperatively to enhance viral pathogenesis in the lung and spleen of sheep by downregulating several immune response genes. The study gives an important insight into the molecular pathogenesis of PPR by identifying that the PPRV—Izatnagar/94 isolate elicits a strong host response in goats than in sheep.
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Affiliation(s)
- Aruna Pandey
- Computational Biology and Genomics Facility Lab, Division of Veterinary Biotechnology, Indian Council of Agricultural Research-Indian Veterinary Research Institute, BareillyIndia
| | - Amit R Sahu
- Computational Biology and Genomics Facility Lab, Division of Veterinary Biotechnology, Indian Council of Agricultural Research-Indian Veterinary Research Institute, BareillyIndia
| | - Sajad A Wani
- Computational Biology and Genomics Facility Lab, Division of Veterinary Biotechnology, Indian Council of Agricultural Research-Indian Veterinary Research Institute, BareillyIndia
| | - Shikha Saxena
- Computational Biology and Genomics Facility Lab, Division of Veterinary Biotechnology, Indian Council of Agricultural Research-Indian Veterinary Research Institute, BareillyIndia
| | - Sonam Kanchan
- Computational Biology and Genomics Facility Lab, Division of Veterinary Biotechnology, Indian Council of Agricultural Research-Indian Veterinary Research Institute, BareillyIndia
| | - Vaishali Sah
- Computational Biology and Genomics Facility Lab, Division of Veterinary Biotechnology, Indian Council of Agricultural Research-Indian Veterinary Research Institute, BareillyIndia
| | - Kaushal K Rajak
- Division of Biological Products, Indian Council of Agricultural Research-Indian Veterinary Research Institute, BareillyIndia
| | - Alok Khanduri
- Computational Biology and Genomics Facility Lab, Division of Veterinary Biotechnology, Indian Council of Agricultural Research-Indian Veterinary Research Institute, BareillyIndia
| | - Aditya P Sahoo
- Computational Biology and Genomics Facility Lab, Division of Veterinary Biotechnology, Indian Council of Agricultural Research-Indian Veterinary Research Institute, BareillyIndia
| | - Ashok K Tiwari
- Division of Biological Standardization, Indian Council of Agricultural Research-Indian Veterinary Research Institute, BareillyIndia
| | - Bina Mishra
- Division of Biological Products, Indian Council of Agricultural Research-Indian Veterinary Research Institute, BareillyIndia
| | - D Muthuchelvan
- Division of Virology, Indian Council of Agricultural Research-Indian Veterinary Research Institute, NainitalIndia
| | - Bishnu P Mishra
- Computational Biology and Genomics Facility Lab, Division of Veterinary Biotechnology, Indian Council of Agricultural Research-Indian Veterinary Research Institute, BareillyIndia
| | - Raj K Singh
- Computational Biology and Genomics Facility Lab, Division of Veterinary Biotechnology, Indian Council of Agricultural Research-Indian Veterinary Research Institute, BareillyIndia
| | - Ravi K Gandham
- Computational Biology and Genomics Facility Lab, Division of Veterinary Biotechnology, Indian Council of Agricultural Research-Indian Veterinary Research Institute, BareillyIndia
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Triff K, McLean MW, Konganti K, Pang J, Callaway E, Zhou B, Ivanov I, Chapkin RS. Assessment of histone tail modifications and transcriptional profiling during colon cancer progression reveals a global decrease in H3K4me3 activity. Biochim Biophys Acta Mol Basis Dis 2017; 1863:1392-1402. [PMID: 28315775 DOI: 10.1016/j.bbadis.2017.03.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 02/08/2017] [Accepted: 03/14/2017] [Indexed: 01/07/2023]
Abstract
During colon cancer, epigenetic alterations contribute to the dysregulation of major cellular functions and signaling pathways. Modifications in chromatin signatures such as H3K4me3 and H3K9ac, which are associated with transcriptionally active genes, can lead to genomic instability and perturb the expression of gene sets associated with oncogenic processes. In order to further elucidate early pre-tumorigenic epigenetic molecular events driving CRC, we integrated diverse, genome-wide, epigenetic inputs (by high throughput sequencing of RNA, H3K4me3, and H3K9ac) and compared differentially expressed transcripts (DE) and enriched regions (DER) in an in-vivo rat colon cancer progression model. Carcinogen (AOM) effects were detected genome-wide at the RNA (116 DE genes), K9ac (49 DERs including 24 genes) and K4me3 (7678 DERs including 3792 genes) level. RNA-seq differential expression and pathway analysis indicated that interferon-associated innate immune responses were impacted by AOM exposure. Despite extensive associations between K4me3 DERs and colon tumorigenesis (1210 genes were linked to colorectal carcinoma) including FOXO3, GNAI2, H2AFX, MSH2, NR3C1, PDCD4 and VEGFA, these changes were not reflected at the RNA gene expression level during early cancer progression. Collectively, our results indicate that carcinogen-induced changes in gene K4me3 DERs are harbingers of future transcriptional events, which drive malignant transformation of the colon.
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Affiliation(s)
- Karen Triff
- Department of Nutrition and Food Science and Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, TX 77843, USA; Department of Biology, Texas A&M University, College Station, TX 77843, USA
| | - Mathew W McLean
- Department of Statistics in Texas A&M University, College Station, 77843, TX, USA
| | - Kranti Konganti
- Texas A&M Institute for Genome Sciences and Society, Texas A&M University, College Station, TX 77843, USA
| | - Jiahui Pang
- Department of Nutrition and Food Science and Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, TX 77843, USA
| | - Evelyn Callaway
- Department of Nutrition and Food Science and Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, TX 77843, USA
| | - Beiyan Zhou
- Veterinary Physiology & Pharmacology, Texas A&M University, College Station, TX 77843, USA
| | - Ivan Ivanov
- Department of Nutrition and Food Science and Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, TX 77843, USA; Department of Statistics in Texas A&M University, College Station, 77843, TX, USA; Veterinary Physiology & Pharmacology, Texas A&M University, College Station, TX 77843, USA
| | - Robert S Chapkin
- Department of Nutrition and Food Science and Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, TX 77843, USA.
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Chang YC, Chi LH, Chang WM, Su CY, Lin YF, Chen CL, Chen MH, Chang PMH, Wu ATH, Hsiao M. Glucose transporter 4 promotes head and neck squamous cell carcinoma metastasis through the TRIM24-DDX58 axis. J Hematol Oncol 2017; 10:11. [PMID: 28061796 PMCID: PMC5219690 DOI: 10.1186/s13045-016-0372-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Accepted: 12/08/2016] [Indexed: 02/25/2023] Open
Abstract
BACKGROUND Head and neck squamous cell carcinoma (HNSCC) represents a unique and major health concern worldwide. Significant increases in glucose uptake and aerobic glycolysis have been observed in HNSCC cells. Glucose transporters (GLUTs) represent a major hub in the glycolysis pathway, with GLUT4 having the highest glucose affinity. However, GLUT4's role in HNSCC has not been fully appreciated. METHODS An in silico analysis was performed in HNSCC cohorts to identify the most significant glucose transporter associated with HNSCC patient prognosis. An immunohistochemical analysis of a tissue microarray with samples from 90 HNSCC patients was used to determine the association of GLUT4 with prognosis. Complementary functional expression and knockdown studies of GLUT4 were performed to investigate whether GLUT4 plays a role in HNSCC cell migration and invasion in vitro and in vivo. The detailed molecular mechanism of the function of GLUT4 in inducing HNSCC cell metastasis was determined. RESULTS Our clinicopathologic analysis showed that increased GLUT4 expression in oral squamous cell carcinoma patients was significantly associated with a poor overall survival (OS, P = 0.035) and recurrence-free survival (RFS, P = 0.001). Furthermore, the ectopic overexpression of GLUT4 in cell lines with low endogenous GLUT4 expression resulted in a significant increase in migratory ability both in vitro and in vivo, whereas the reverse phenotype was observed in GLUT4-silenced cells. Utilizing a GLUT4 overexpression model, we performed gene expression microarray and Ingenuity Pathway Analysis (IPA) to determine that the transcription factor tripartite motif-containing 24 (TRIM24) was the main downstream regulator of GLUT4. In addition, DDX58 was confirmed to be the downstream target of TRIM24, whose downregulation is essential for the migratory phenotype induced by GLUT4-TRIM24 activation in HNSCC cells. CONCLUSIONS Here, we identified altered glucose metabolism in the progression of HNSCC and showed that it could be partially attributed to the novel link between GLUT4 and TRIM24. This novel signaling axis may be used for the prognosis and therapeutic treatment of HNSCC in the future.
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Affiliation(s)
- Yu-Chan Chang
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Li-Hsing Chi
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
- The Ph.D. Program for Translational Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wei-Ming Chang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Chia-Yi Su
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Yuang-Feng Lin
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chi-Long Chen
- Department of Pathology, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
- Department of Pathology, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ming-Huang Chen
- Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
- Faculty of Medicine, National Yang Ming University, Taipei, Taiwan
| | - Peter Mu-Hsin Chang
- Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
- Faculty of Medicine, National Yang Ming University, Taipei, Taiwan
| | - Alex T H Wu
- The Ph.D. Program for Translational Medicine, Taipei Medical University, Taipei, Taiwan
| | - Michael Hsiao
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan.
- Genomics Research Center, Academia Sinica, Taipei, Taiwan.
- Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
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Sullivan KD, Lewis HC, Hill AA, Pandey A, Jackson LP, Cabral JM, Smith KP, Liggett LA, Gomez EB, Galbraith MD, DeGregori J, Espinosa JM. Trisomy 21 consistently activates the interferon response. eLife 2016; 5:e16220. [PMID: 27472900 PMCID: PMC5012864 DOI: 10.7554/elife.16220] [Citation(s) in RCA: 198] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Accepted: 07/28/2016] [Indexed: 12/12/2022] Open
Abstract
Although it is clear that trisomy 21 causes Down syndrome, the molecular events acting downstream of the trisomy remain ill defined. Using complementary genomics analyses, we identified the interferon pathway as the major signaling cascade consistently activated by trisomy 21 in human cells. Transcriptome analysis revealed that trisomy 21 activates the interferon transcriptional response in fibroblast and lymphoblastoid cell lines, as well as circulating monocytes and T cells. Trisomy 21 cells show increased induction of interferon-stimulated genes and decreased expression of ribosomal proteins and translation factors. An shRNA screen determined that the interferon-activated kinases JAK1 and TYK2 suppress proliferation of trisomy 21 fibroblasts, and this defect is rescued by pharmacological JAK inhibition. Therefore, we propose that interferon activation, likely via increased gene dosage of the four interferon receptors encoded on chromosome 21, contributes to many of the clinical impacts of trisomy 21, and that interferon antagonists could have therapeutic benefits.
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Affiliation(s)
- Kelly D Sullivan
- Linda Crnic Institute for Down Syndrome, University of Colorado School of Medicine, Aurora, United States
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, United States
- Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, United States
- Howard Hughes Medical Institute, Chevy Chase, United States
| | - Hannah C Lewis
- Linda Crnic Institute for Down Syndrome, University of Colorado School of Medicine, Aurora, United States
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, United States
| | - Amanda A Hill
- Linda Crnic Institute for Down Syndrome, University of Colorado School of Medicine, Aurora, United States
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, United States
| | - Ahwan Pandey
- Linda Crnic Institute for Down Syndrome, University of Colorado School of Medicine, Aurora, United States
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, United States
- Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, United States
- Howard Hughes Medical Institute, Chevy Chase, United States
| | - Leisa P Jackson
- Linda Crnic Institute for Down Syndrome, University of Colorado School of Medicine, Aurora, United States
- Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, United States
- Howard Hughes Medical Institute, Chevy Chase, United States
| | - Joseph M Cabral
- Linda Crnic Institute for Down Syndrome, University of Colorado School of Medicine, Aurora, United States
- Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, United States
- Howard Hughes Medical Institute, Chevy Chase, United States
| | - Keith P Smith
- Linda Crnic Institute for Down Syndrome, University of Colorado School of Medicine, Aurora, United States
| | - L Alexander Liggett
- Linda Crnic Institute for Down Syndrome, University of Colorado School of Medicine, Aurora, United States
- Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, United States
| | - Eliana B Gomez
- Linda Crnic Institute for Down Syndrome, University of Colorado School of Medicine, Aurora, United States
- Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, United States
- Howard Hughes Medical Institute, Chevy Chase, United States
| | - Matthew D Galbraith
- Linda Crnic Institute for Down Syndrome, University of Colorado School of Medicine, Aurora, United States
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, United States
- Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, United States
- Howard Hughes Medical Institute, Chevy Chase, United States
| | - James DeGregori
- Linda Crnic Institute for Down Syndrome, University of Colorado School of Medicine, Aurora, United States
- Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, United States
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, United States
- Integrated Department of Immunology, University of Colorado School of Medicine, Aurora, United States
- Section of Hematology, University of Colorado School of Medicine, Aurora, United States
- Department of Medicine, University of Colorado School of Medicine, Aurora, United States
| | - Joaquín M Espinosa
- Linda Crnic Institute for Down Syndrome, University of Colorado School of Medicine, Aurora, United States
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, United States
- Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, United States
- Howard Hughes Medical Institute, Chevy Chase, United States
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Synergistic Modification Induced Specific Recognition between Histone and TRIM24 via Fluctuation Correlation Network Analysis. Sci Rep 2016; 6:24587. [PMID: 27079666 PMCID: PMC4832343 DOI: 10.1038/srep24587] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 03/31/2016] [Indexed: 01/19/2023] Open
Abstract
Histone modification plays a key role in gene regulation and gene expression. TRIM24 as a histone reader can recognize histone modification. However the specific recognition mechanism between TRIM24 and histone modification is unsolved. Here, systems biology method of dynamics correlation network based on molecular dynamics simulation was used to answer the question. Our network analysis shows that the dynamics correlation network of H3K23ac is distinctly different from that of wild type and other modifications. A hypothesis of “synergistic modification induced recognition” is then proposed to link histone modification and TRIM24 binding. These observations were further confirmed from community analysis of networks with mutation and network perturbation. Finally, a possible recognition pathway is also identified based on the shortest path search for H3K23ac. Significant difference of recognition pathway was found among different systems due to methylation and acetylation modifications. The analysis presented here and other studies show that the dynamic network-based analysis might be a useful general strategy to study the biology of protein post-translational modification and associated recognition.
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T-cell-intrinsic Tif1α/Trim24 regulates IL-1R expression on TH2 cells and TH2 cell-mediated airway allergy. Proc Natl Acad Sci U S A 2016; 113:E568-76. [PMID: 26787865 DOI: 10.1073/pnas.1522287113] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
There is a paucity of new therapeutic targets to control allergic reactions and forestall the rising trend of allergic diseases. Although a variety of immune cells contribute to allergy, cytokine-secreting αβ(+)CD4(+) T-helper 2 (TH2) cells orchestrate the type-2-driven immune response in a large proportion of atopic asthmatics. To identify previously unidentified putative targets in pathogenic TH2 cells, we performed in silico analyses of recently published transcriptional data from a wide variety of pathogenic TH cells [Okoye IS, et al. (2014) Proc Natl Acad Sci USA 111(30):E3081-E3090] and identified that transcription intermediary factor 1 regulator-alpha (Tif1α)/tripartite motif-containing 24 (Trim24) was predicted to be active in house dust mite (HDM)- and helminth-elicited Il4(gfp+)αβ(+)CD4(+) TH2 cells but not in TH1, TH17, or Treg cells. Testing this prediction, we restricted Trim24 deficiency to T cells by using a mixed bone marrow chimera system and found that T-cell-intrinsic Trim24 is essential for HDM-mediated airway allergy and antihelminth immunity. Mechanistically, HDM-elicited Trim24(-/-) T cells have reduced expression of many TH2 cytokines and chemokines and were predicted to have compromised IL-1-regulated signaling. Following this prediction, we found that Trim24(-/-) T cells have reduced IL-1 receptor (IL-1R) expression, are refractory to IL-1β-mediated activation in vitro and in vivo, and fail to respond to IL-1β-exacerbated airway allergy. Collectively, these data identify a previously unappreciated Trim24-dependent requirement for IL-1R expression on TH2 cells and an important nonredundant role for T-cell-intrinsic Trim24 in TH2-mediated allergy and antihelminth immunity.
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Koskela von Sydow A, Janbaz C, Kardeby C, Repsilber D, Ivarsson M. IL-1α Counteract TGF-β Regulated Genes and Pathways in Human Fibroblasts. J Cell Biochem 2015; 117:1622-32. [DOI: 10.1002/jcb.25455] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 12/01/2015] [Indexed: 12/24/2022]
Affiliation(s)
- Anita Koskela von Sydow
- Faculty of Medicine and Health; Örebro University; Örebro Sweden
- Department of Clinical Research Laboratory; University Hospital; Örebro Sweden
| | - Chris Janbaz
- Faculty of Medicine and Health; Örebro University; Örebro Sweden
- Department of Plastic and Reconstructive Surgery; University Hospital; Örebro Sweden
| | - Caroline Kardeby
- Faculty of Medicine and Health; Örebro University; Örebro Sweden
| | - Dirk Repsilber
- Faculty of Medicine and Health; Örebro University; Örebro Sweden
| | - Mikael Ivarsson
- Faculty of Medicine and Health; Örebro University; Örebro Sweden
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TRIM33 switches off Ifnb1 gene transcription during the late phase of macrophage activation. Nat Commun 2015; 6:8900. [PMID: 26592194 PMCID: PMC4673826 DOI: 10.1038/ncomms9900] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 10/10/2015] [Indexed: 01/01/2023] Open
Abstract
Despite its importance during viral or bacterial infections, transcriptional regulation of the interferon-β gene (Ifnb1) in activated macrophages is only partially understood. Here we report that TRIM33 deficiency results in high, sustained expression of Ifnb1 at late stages of toll-like receptor-mediated activation in macrophages but not in fibroblasts. In macrophages, TRIM33 is recruited by PU.1 to a conserved region, the Ifnb1 Control Element (ICE), located 15 kb upstream of the Ifnb1 transcription start site. ICE constitutively interacts with Ifnb1 through a TRIM33-independent chromatin loop. At late phases of lipopolysaccharide activation of macrophages, TRIM33 is bound to ICE, regulates Ifnb1 enhanceosome loading, controls Ifnb1 chromatin structure and represses Ifnb1 gene transcription by preventing recruitment of CBP/p300. These results characterize a previously unknown mechanism of macrophage-specific regulation of Ifnb1 transcription whereby TRIM33 is critical for Ifnb1 gene transcription shutdown. Transcriptional regulation of the interferon-β gene (Ifnb1) in macrophages is a critical immune event. Here, Ferri et al. show that, at late phases of macrophages activation, TRIM33 bound to a distal repressor element suppresses Ifnb1 transcription by preventing recruitment of CBP/p300.
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miR-744 enhances type I interferon signaling pathway by targeting PTP1B in primary human renal mesangial cells. Sci Rep 2015; 5:12987. [PMID: 26259828 PMCID: PMC4531339 DOI: 10.1038/srep12987] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 05/05/2015] [Indexed: 12/23/2022] Open
Abstract
Renal mesangial cells (RMCs) constitute a population of cells in glomerular mesangium. Inflammatory cytokines produced by RMCs play a vital role in renal inflammation. miRNAs are key regulators of inflammatory cytokine expression. The abnormal expression of renal miRNAs and the consequent changes in inflammatory signal transduction are closely associated with renal inflammation. However, our knowledge of the functions of renal miRNAs is still limited. In this study, we investigated the role of miR-744 in type I interferon (IFN) signaling pathway in primary human RMCs. We show that overexpression of miR-744 enhances IFN-induced CCL2, CCL5, CXCL10, and IL6 expression specifically in RMCs. We found that the activation of TYK2, STAT1 and STAT3 was significantly enhanced by miR-744. miR-744 also enhanced the activation of non-classical signal components, such as ERK and p38. We then identified PTP1B, a ubiquitously expressed phosphatase, as the target of miR-744 that is responsible for enhancing type I IFN response. Finally, miR-744 expression was induced by type I IFN in RMCs. Collectively, our data indicate that by targeting PTP1B, miR-744 plays a feed-forward role in regulating type I IFN signaling pathway. These findings give us new insights into the functions of renal miRNAs in regulating important signaling pathways.
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49
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Herquel B, Keime C, Davidson I. No evidence for generation of alternatively spliced isoforms from the mutated Trim24 allele lacking exon 4 in mouse liver. J Hepatol 2015; 63:276-7. [PMID: 25701693 DOI: 10.1016/j.jhep.2015.02.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 02/02/2015] [Accepted: 02/04/2015] [Indexed: 12/04/2022]
Affiliation(s)
- Benjamin Herquel
- Max Planck Institute of Immunology and Epigenetics, Stubeweg 51, 79100 Freiburg im Breisgau, Germany
| | - Céline Keime
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, 1 rue Laurent Fries, 67404 Illkirch-Graffenstaden, France
| | - Irwin Davidson
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, 1 rue Laurent Fries, 67404 Illkirch-Graffenstaden, France.
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Madejczyk MS, Baer CE, Dennis WE, Minarchick VC, Leonard SS, Jackson DA, Stallings JD, Lewis JA. Temporal changes in rat liver gene expression after acute cadmium and chromium exposure. PLoS One 2015; 10:e0127327. [PMID: 25993096 PMCID: PMC4437902 DOI: 10.1371/journal.pone.0127327] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 04/13/2015] [Indexed: 11/18/2022] Open
Abstract
U.S. Service Members and civilians are at risk of exposure to a variety of environmental health hazards throughout their normal duty activities and in industrial occupations. Metals are widely used in large quantities in a number of industrial processes and are a common environmental toxicant, which increases the possibility of being exposed at toxic levels. While metal toxicity has been widely studied, the exact mechanisms of toxicity remain unclear. In order to further elucidate these mechanisms and identify candidate biomarkers, rats were exposed via a single intraperitoneal injection to three concentrations of CdCl2 and Na2Cr2O7, with livers harvested at 1, 3, or 7 days after exposure. Cd and Cr accumulated in the liver at 1 day post exposure. Cd levels remained elevated over the length of the experiment, while Cr levels declined. Metal exposures induced ROS, including hydroxyl radical (•OH), resulting in DNA strand breaks and lipid peroxidation. Interestingly, ROS and cellular damage appeared to increase with time post-exposure in both metals, despite declines in Cr levels. Differentially expressed genes were identified via microarray analysis. Both metals perturbed gene expression in pathways related to oxidative stress, metabolism, DNA damage, cell cycle, and inflammatory response. This work provides insight into the temporal effects and mechanistic pathways involved in acute metal intoxication, leading to the identification of candidate biomarkers.
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Affiliation(s)
- Michael S. Madejczyk
- ORISE Postdoctoral Fellow at the US Army Center for Environmental Health Research, Fort Detrick, MD, United States of America
| | | | - William E. Dennis
- US Army Center for Environmental Health Research, Fort Detrick, MD, United States of America
| | - Valerie C. Minarchick
- National Institute for Occupational Safety and Health, Morgantown, WV, United States of America
| | - Stephen S. Leonard
- National Institute for Occupational Safety and Health, Morgantown, WV, United States of America
| | - David A. Jackson
- US Army Center for Environmental Health Research, Fort Detrick, MD, United States of America
| | - Jonathan D. Stallings
- US Army Center for Environmental Health Research, Fort Detrick, MD, United States of America
| | - John A. Lewis
- US Army Center for Environmental Health Research, Fort Detrick, MD, United States of America
- * E-mail:
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