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Manríquez RA, Sandoval M, Loncoman C, Tafalla C, Avendaño-Herrera R, Cárcamo JG. Epigenetic reprogramming around IFN1 and IFNy2 promoters in rainbow trout cells inoculated with infectious pancreatic necrosis virus (IPNV). FISH & SHELLFISH IMMUNOLOGY 2023; 140:108947. [PMID: 37454879 DOI: 10.1016/j.fsi.2023.108947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 07/18/2023]
Abstract
Infectious pancreatic necrosis virus (IPNV) has proven to effectively evade the host antiviral responses. This study clarifies whether the modulation of the antiviral immune response exerted by IPNV involves epigenetic mechanisms. An in-silico characterization of the rainbow trout IFN1 and IFNγ2 promoters was performed, identifying the islands or sequences rich in CpG dinucleotides and the putative transcription factor binding sites (TBS) for both gene promoters. RTS11 cells (rainbow trout monocyte/macrophage) were infected with IPNV, and the course of viral infection was followed up to 48 h post infection (hpi). Infected cells showed increased IFN1 and IFNγ2 transcriptional expression at 6 and 24 hpi, respectively. IPNV infection caused increases and decreases in global IFNγ2 promoter methylation at 6 and 24 hpi, respectively. The CpG dinucleotides at positions -392 and + 38 of this promoter were the most sensitive to methylation changes. The IFN1 promoter remained fully unmethylated during the course of the infection, similar to the control. The changes in the methylation pattern observed for the IFNγ2 promoter were coincident with the changes in DNA methyltransferase (DNMT) expression levels, increasing at 6 hpi and decreasing below basal level at 24 hpi. Similarly, the H4 histones associated with the IFN1 and IFNγ2 promoters were hyperacetylated at 6 hpi, subsequently decreasing their acetylation below basal levels at 24 hpi, in both promoters. Coincidentally with the above, overexpression of histone acetyltransferase (HAT) was observed at 6 hpi and of histone deacetylase (HDAC) at 24 hpi, with return to baseline of HAT. These results suggest that IPNV would epigenetically modulate the expression of IFN1 by changing acetylation levels of the histones H4 associated with its promoter. Also, the modulation of the expression of IFNy2 would be by switching methylation/demethylation levels of its promoter, in addition to changes in acetylation levels of histones H4 associated with this promoter. This study is the first to demonstrate the effect of epigenetic reprogramming after IPNV infection in salmonid cells, demonstrating that promoter methylation/demethylation level and changes in the histone code associated with promoters may play a role in the modulation of the immune response induced by the virus.
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Affiliation(s)
- René A Manríquez
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), Valdivia, Chile
| | - Moisés Sandoval
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), Valdivia, Chile
| | - Carlos Loncoman
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Carolina Tafalla
- Animal Health Research Center (CISA), INIA-CSIC, Valdeolmos-Alalpardo, 28130, Madrid, Spain
| | - R Avendaño-Herrera
- Interdisciplinary Center for Aquaculture Research (INCAR), Valdivia, Chile; Laboratorio de Patología de Organismos Acuáticos y Biotecnología Acuícola, Universidad Andrés Bello, Viña del Mar, Chile; Centro de Investigación Marina Quintay (CIMARQ), Universidad Andrés Bello, Quintay, Chile
| | - Juan G Cárcamo
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), Valdivia, Chile.
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Wang W, Hariharan M, Bartlett A, Barragan C, Castanon R, Rothenberg V, Song H, Nery J, Aldridge A, Altshul J, Kenworthy M, Ding W, Liu H, Tian W, Zhou J, Chen H, Wei B, Gündüz IB, Norell T, Broderick TJ, McClain MT, Satterwhite LL, Burke TW, Petzold EA, Shen X, Woods CW, Fowler VG, Ruffin F, Panuwet P, Barr DB, Beare JL, Smith AK, Spurbeck RR, Vangeti S, Ramos I, Nudelman G, Sealfon SC, Castellino F, Walley AM, Evans T, Müller F, Greenleaf WJ, Ecker JR. Human Immune Cell Epigenomic Signatures in Response to Infectious Diseases and Chemical Exposures. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.06.29.546792. [PMID: 37425926 PMCID: PMC10327221 DOI: 10.1101/2023.06.29.546792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
Variations in DNA methylation patterns in human tissues have been linked to various environmental exposures and infections. Here, we identified the DNA methylation signatures associated with multiple exposures in nine major immune cell types derived from peripheral blood mononuclear cells (PBMCs) at single-cell resolution. We performed methylome sequencing on 111,180 immune cells obtained from 112 individuals who were exposed to different viruses, bacteria, or chemicals. Our analysis revealed 790,662 differentially methylated regions (DMRs) associated with these exposures, which are mostly individual CpG sites. Additionally, we integrated methylation and ATAC-seq data from same samples and found strong correlations between the two modalities. However, the epigenomic remodeling in these two modalities are complementary. Finally, we identified the minimum set of DMRs that can predict exposures. Overall, our study provides the first comprehensive dataset of single immune cell methylation profiles, along with unique methylation biomarkers for various biological and chemical exposures.
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Affiliation(s)
- Wenliang Wang
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, 10010 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Manoj Hariharan
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, 10010 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Anna Bartlett
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, 10010 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Cesar Barragan
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, 10010 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Rosa Castanon
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, 10010 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Vince Rothenberg
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, 10010 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Haili Song
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, 10010 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Joseph Nery
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, 10010 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Andrew Aldridge
- Duke University School of Medicine, Bryan Research Building, 311 Research Drive, Durham, NC 27710, USA
| | - Jordan Altshul
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, 10010 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Mia Kenworthy
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, 10010 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Wubin Ding
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, 10010 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Hanqing Liu
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, 10010 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Wei Tian
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, 10010 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Jingtian Zhou
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, 10010 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Huaming Chen
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, 10010 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Bei Wei
- Department of Genetics, Stanford University, Stanford, CA 94305, USA
| | - Irem B. Gündüz
- Integrative Cellular Biology & Bioinformatics Lab, Saarland University, 66123 Saarbrücken, Germany
| | - Todd Norell
- Healthspan, Resilience, and Performance, Florida Institute for Human and Machine Cognition, 40 S Alcaniz St, Pensacola, FL 32502, USA
| | - Timothy J Broderick
- Healthspan, Resilience, and Performance, Florida Institute for Human and Machine Cognition, 40 S Alcaniz St, Pensacola, FL 32502, USA
| | - Micah T. McClain
- Center for Infectious Disease Diagnostics and Innovation, Division of Infectious Diseases, Duke University Medical Center, Durham, NC 27710 USA
- Durham Veterans Affairs Medical Center, Durham, NC 27705 USA
| | - Lisa L. Satterwhite
- Department of Civil and Environmental Engineering, Pratt School of Engineering, Duke University, Durham, NC 27708, USA
| | - Thomas W. Burke
- Center for Infectious Disease Diagnostics and Innovation, Division of Infectious Diseases, Duke University Medical Center, Durham, NC 27710 USA
| | - Elizabeth A. Petzold
- Center for Infectious Disease Diagnostics and Innovation, Division of Infectious Diseases, Duke University Medical Center, Durham, NC 27710 USA
| | - Xiling Shen
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90024, USA
| | - Christopher W. Woods
- Center for Infectious Disease Diagnostics and Innovation, Division of Infectious Diseases, Duke University Medical Center, Durham, NC 27710 USA
- Durham Veterans Affairs Medical Center, Durham, NC 27705 USA
| | - Vance G. Fowler
- Center for Infectious Disease Diagnostics and Innovation, Division of Infectious Diseases, Duke University Medical Center, Durham, NC 27710 USA
- Duke Clinical Research Institute, Durham NC 27701 USA
| | - Felicia Ruffin
- Center for Infectious Disease Diagnostics and Innovation, Division of Infectious Diseases, Duke University Medical Center, Durham, NC 27710 USA
| | - Parinya Panuwet
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA 30322 USA
| | - Dana B. Barr
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA 30322 USA
| | | | - Anthony K. Smith
- Battelle Memorial Institute, 505 King Ave Columbus OH 43201, USA
| | | | - Sindhu Vangeti
- Department of Neurology, Icahn School of Medicine at Mount Sinai; New York, NY 10029, USA
| | - Irene Ramos
- Department of Neurology, Icahn School of Medicine at Mount Sinai; New York, NY 10029, USA
| | - German Nudelman
- Department of Neurology, Icahn School of Medicine at Mount Sinai; New York, NY 10029, USA
| | - Stuart C. Sealfon
- Department of Neurology, Icahn School of Medicine at Mount Sinai; New York, NY 10029, USA
| | - Flora Castellino
- U.S. Department of Health and Human Services, Administration for Strategic Preparedness and Response, Biomedical Advanced Research and Development Authority, Washington, DC, USA
| | - Anna Maria Walley
- Vaccitech plc, Unit 6-10, Zeus Building, Rutherford Avenue, Harwell OX11 0DF, United Kingdom
| | - Thomas Evans
- Vaccitech plc, Unit 6-10, Zeus Building, Rutherford Avenue, Harwell OX11 0DF, United Kingdom
| | - Fabian Müller
- Integrative Cellular Biology & Bioinformatics Lab, Saarland University, 66123 Saarbrücken, Germany
| | | | - Joseph R. Ecker
- Genomic Analysis Laboratory, The Salk Institute for Biological Studies, 10010 N Torrey Pines Rd, La Jolla, CA 92037, USA
- Howard Hughes Medical Institute, The Salk Institute for Biological Studies, 10010 N Torrey Pines Rd, La Jolla, CA 92037, USA
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Jiang W, Jiang Y, Zhang X, Mu H, Song Y, Zhao H. Metabolomic analysis reveals the influence of HMBOX1 on RAW264.7 cells proliferation based on UPLC-MS/MS. BMC Genomics 2023; 24:272. [PMID: 37208615 DOI: 10.1186/s12864-023-09361-x] [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: 12/25/2022] [Accepted: 05/06/2023] [Indexed: 05/21/2023] Open
Abstract
Macrophages are important effector cells in tumor progression and immune regulation. Previously, we demonstrated that the transcription suppressor homeobox containing 1(HMBOX1) exhibits immunosuppressive activity in LPS-induced acute liver injury by impeding macrophage infiltration and activation. We also observed a lower proliferation in HMBOX1-overexpressed RAW264.7 cells. However, the specific mechanism was unclear. Here, a work was performed to characterize HMBOX1 function related to cell proliferation from a metabolomics standpoint by comparing the metabolic profiles of HMBOX1-overexpressed RAW264.7 cells to those of the controls. Firstly, we assessed HMBOX1 anti-proliferation activity in RAW264.7 cells with CCK8 assay and clone formation. Then, we performed metabolomic analyses by ultra-liquid chromatography coupled with mass spectrometry to explore the potential mechanisms. Our results indicated that HMBOX1 inhibited the macrophage growth curve and clone formation ability. Metabolomic analyses showed significant changes in HMBOX1-overexpressed RAW264.7 metabolites. A total of 1312 metabolites were detected, and 185 differential metabolites were identified based on the criterion of OPLS-DA VIP > 1 and p value < 0.05. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis indicated that the elevated HMBOX1 in RAW264.7 inhibited the pathways of amino acid and nucleotide metabolism. Glutamine concentrations decreased significantly in HMBOX1-overexpressed macrophages, and glutamine-related transporter SLC1A5 was also downregulated. Furthermore, SLC1A5 overexpression reversed HMBOX1 inhibition of macrophage proliferation. This study demonstrated the potential mechanism of the HMBOX1/SLC1A5 pathway in cell proliferation by regulating glutamine transportation. The results may help provide a new direction for therapeutic interventions in macrophage-related inflammatory diseases.
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Affiliation(s)
- Wen Jiang
- Central Research Laboratory, the Second Hospital of Shandong University, Jinan, 250033, China
| | - Yu Jiang
- Department of Clinical Research Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China
| | - Xinghai Zhang
- Department of Clinical Research Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China
| | - Hongli Mu
- Department of Clinical Research Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China
| | - Yuanming Song
- Department of Clinical Research Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China
| | - Hengli Zhao
- Department of Clinical Research Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China.
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Plasma-Enabled Smart Nanoexosome Platform as Emerging Immunopathogenesis for Clinical Viral Infection. Pharmaceutics 2022; 14:pharmaceutics14051054. [PMID: 35631640 PMCID: PMC9145689 DOI: 10.3390/pharmaceutics14051054] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/08/2022] [Accepted: 05/11/2022] [Indexed: 02/01/2023] Open
Abstract
Smart nanoexosomes are nanosized structures enclosed in lipid bilayers that are structurally similar to the viruses released by a variety of cells, including the cells lining the respiratory system. Of particular importance, the interaction between smart nanoexosomes and viruses can be used to develop antiviral drugs and vaccines. It is possible that nanoexosomes will be utilized and antibodies will be acquired more successfully for the transmission of an immune response if reconvalescent plasma (CP) is used instead of reconvalescent plasma exosomes (CPExo) in this concept. Convalescent plasma contains billions of smart nanoexosomes capable of transporting a variety of molecules, including proteins, lipids, RNA and DNA among other viral infections. Smart nanoexosomes are released from virus-infected cells and play an important role in mediating communication between infected and uninfected cells. Infections use the formation, production and release of smart nanoexosomes to enhance the infection, transmission and intercellular diffusion of viruses. Cell-free smart nanoexosomes produced by mesenchymal stem cells (MSCs) could also be used as cell-free therapies in certain cases. Smart nanoexosomes produced by mesenchymal stem cells can also promote mitochondrial function and heal lung injury. They can reduce cytokine storms and restore the suppression of host antiviral defenses weakened by viral infections. This study examines the benefits of smart nanoexosomes and their roles in viral transmission, infection, treatment, drug delivery and clinical applications. We also explore some potential future applications for smart nanoexosomes in the treatment of viral infections.
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5
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Li H, Funk CC, McFarland K, Dammer EB, Allen M, Carrasquillo MM, Levites Y, Chakrabarty P, Burgess JD, Wang X, Dickson D, Seyfried NT, Duong DM, Lah JJ, Younkin SG, Levey AI, Omenn GS, Ertekin‐Taner N, Golde TE, Price ND. Integrative functional genomic analysis of intron retention in human and mouse brain with Alzheimer's disease. Alzheimers Dement 2021; 17:984-1004. [PMID: 33480174 PMCID: PMC8248162 DOI: 10.1002/alz.12254] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 10/08/2020] [Accepted: 10/17/2020] [Indexed: 12/21/2022]
Abstract
Intron retention (IR) has been implicated in the pathogenesis of complex diseases such as cancers; its association with Alzheimer's disease (AD) remains unexplored. We performed genome-wide analysis of IR through integrating genetic, transcriptomic, and proteomic data of AD subjects and mouse models from the Accelerating Medicines Partnership-Alzheimer's Disease project. We identified 4535 and 4086 IR events in 2173 human and 1736 mouse genes, respectively. Quantitation of IR enabled the identification of differentially expressed genes that conventional exon-level approaches did not reveal. There were significant correlations of intron expression within innate immune genes, like HMBOX1, with AD in humans. Peptides with a high probability of translation from intron-retained mRNAs were identified using mass spectrometry. Further, we established AD-specific intron expression Quantitative Trait Loci, and identified splicing-related genes that may regulate IR. Our analysis provides a novel resource for the search for new AD biomarkers and pathological mechanisms.
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Affiliation(s)
- Hong‐Dong Li
- Hunan Provincial Key Lab on BioinformaticsSchool of Computer Science and EngineeringCentral South UniversityChangshaHunanP.R. China
- Institute for Systems BiologySeattleWashingtonUSA
| | - Cory C. Funk
- Institute for Systems BiologySeattleWashingtonUSA
| | - Karen McFarland
- Department of Neuroscience and NeurologyCenter for Translational Research in Neurodegenerative diseaseand McKnight Brain InstituteUniversity of FloridaGainesvilleFloridaUSA
| | - Eric B. Dammer
- Department of BiochemistryEmory UniversityAtlantaGeorgiaUSA
| | - Mariet Allen
- Mayo ClinicDepartment ofNeuroscienceJacksonvilleFloridaUSA
| | | | - Yona Levites
- Department of Neuroscience and NeurologyCenter for Translational Research in Neurodegenerative diseaseand McKnight Brain InstituteUniversity of FloridaGainesvilleFloridaUSA
| | - Paramita Chakrabarty
- Department of Neuroscience and NeurologyCenter for Translational Research in Neurodegenerative diseaseand McKnight Brain InstituteUniversity of FloridaGainesvilleFloridaUSA
| | | | - Xue Wang
- Mayo ClinicDepartment of Health Sciences ResearchJacksonvilleFloridaUSA
| | - Dennis Dickson
- Mayo ClinicDepartment ofNeuroscienceJacksonvilleFloridaUSA
| | - Nicholas T. Seyfried
- Department of BiochemistryEmory UniversityAtlantaGeorgiaUSA
- Department of NeurologyEmory UniversityAtlantaGeorgiaUSA
| | - Duc M. Duong
- Department of BiochemistryEmory UniversityAtlantaGeorgiaUSA
| | - James J. Lah
- Department of NeurologyEmory UniversityAtlantaGeorgiaUSA
| | | | - Allan I. Levey
- Department of NeurologyEmory UniversityAtlantaGeorgiaUSA
| | - Gilbert S. Omenn
- Institute for Systems BiologySeattleWashingtonUSA
- Department of Computational Medicine and BioinformaticsUniversity of MichiganAnn ArborMichiganUSA
| | - Nilüfer Ertekin‐Taner
- Mayo ClinicDepartment ofNeuroscienceJacksonvilleFloridaUSA
- Mayo ClinicDepartment of NeurologyJacksonvilleFloridaUSA
| | - Todd E. Golde
- Department of Neuroscience and NeurologyCenter for Translational Research in Neurodegenerative diseaseand McKnight Brain InstituteUniversity of FloridaGainesvilleFloridaUSA
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Cancer-secreted exosomal miR-1468-5p promotes tumor immune escape via the immunosuppressive reprogramming of lymphatic vessels. Mol Ther 2021; 29:1512-1528. [PMID: 33388421 PMCID: PMC8058488 DOI: 10.1016/j.ymthe.2020.12.034] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 12/11/2020] [Accepted: 12/23/2020] [Indexed: 12/18/2022] Open
Abstract
Cancer-associated lymphatic endothelial cells (LECs) are an active barrier to the effector arm of the anti-tumor immune response; however, it remains unclear how LECs become immunosuppressive in the tumor microenvironment (TME). Exosomal microRNAs (miRNAs) have recently been implicated in intercellular crosstalk within the TME. Here, we report a mechanistic model via which cervical cancer-secreted, exosome-encapsulated microRNA (miR)-1468-5p promotes lymphatic PD-L1 upregulation and lymphangiogenesis to impair T cell immunity. Subsequently, exosomal miR-1468-5p epigenetically activates the JAK2/STAT3 pathway in LECs by directly targeting homeobox containing 1 (HMBOX1) in the SOCS1 promoter, activating an immunosuppressive program that allows cancer cells to escape anti-cancer immunity. Furthermore, clinical data reveal that high serum exosomal miR-1468-5p levels correlate with TME immunosuppressive status and poor prognosis in cervical cancer (CCa) patients. Taken together, our results suggest that cancer-secreted exosomal miR-1468-5p instructs LECs to form an integrated immunosuppressive TME component and may be a prognostic biomarker and therapeutic target for CCa.
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Chen S, Li Y, Zhi S, Ding Z, Wang W, Peng Y, Huang Y, Zheng R, Yu H, Wang J, Hu M, Miao J, Li J. WTAP promotes osteosarcoma tumorigenesis by repressing HMBOX1 expression in an m 6A-dependent manner. Cell Death Dis 2020; 11:659. [PMID: 32814762 PMCID: PMC7438489 DOI: 10.1038/s41419-020-02847-6] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/28/2020] [Accepted: 07/29/2020] [Indexed: 02/07/2023]
Abstract
N6-methyladenosine (m6A) regulators are involved in the progression of various cancers via regulating m6A modification. However, the potential role and mechanism of the m6A modification in osteosarcoma remains obscure. In this study, WTAP was found to be highly expressed in osteosarcoma tissue and it was an independent prognostic factor for overall survival in osteosarcoma. Functionally, WTAP, as an oncogene, was involved in the proliferation and metastasis of osteosarcoma in vitro and vivo. Mechanistically, M6A dot blot, RNA-seq and MeRIP-seq, MeRIP-qRT-PCR and luciferase reporter assays showed that HMBOX1 was identified as the target gene of WTAP, which regulated HMBOX1 stability depending on m6A modification at the 3′UTR of HMBOX1 mRNA. In addition, HMBOX1 expression was downregulated in osteosarcoma and was an independent prognostic factor for overall survival in osteosarcoma patients. Silenced HMBOX1 evidently attenuated shWTAP-mediated suppression on osteosarcoma growth and metastasis in vivo and vitro. Finally, WTAP/HMBOX1 regulated osteosarcoma growth and metastasis via PI3K/AKT pathway. In conclusion, this study demonstrated the critical role of the WTAP-mediated m6A modification in the progression of osteosarcoma, which could provide novel insights into osteosarcoma treatment.
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Affiliation(s)
- Shijie Chen
- Department of Orthopaedics, The Third Xiangya Hospital of Central South University, 138 Tongzipo Rd, Changsha, Hunan, 410013, China.,Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Yuezhan Li
- Department of Orthopaedics, The Third Xiangya Hospital of Central South University, 138 Tongzipo Rd, Changsha, Hunan, 410013, China
| | - Shuang Zhi
- Four Gynecological Wards, Ningbo Women and Children's Hospital, Ningbo, Zhejiang, 315000, China
| | - Zhiyu Ding
- Department of Orthopaedics, The Third Xiangya Hospital of Central South University, 138 Tongzipo Rd, Changsha, Hunan, 410013, China
| | - Weiguo Wang
- Department of Orthopaedics, The Third Xiangya Hospital of Central South University, 138 Tongzipo Rd, Changsha, Hunan, 410013, China
| | - Yi Peng
- Department of Orthopaedics, The Third Xiangya Hospital of Central South University, 138 Tongzipo Rd, Changsha, Hunan, 410013, China
| | - Yan Huang
- The Second Xiangya Hospital of Central South University, Changsha, China
| | - Ruping Zheng
- School of Basic Medical Science, Central South University, Changsha, China
| | - Haiyang Yu
- School of Basic Medical Science, Central South University, Changsha, China
| | - Jianlong Wang
- Department of Orthopaedics, The Third Xiangya Hospital of Central South University, 138 Tongzipo Rd, Changsha, Hunan, 410013, China
| | - Minghua Hu
- Department of Anatomy, Histology and Embryology, Changsha Medical University, Changsha, China
| | - Jinglei Miao
- Department of Orthopaedics, The Third Xiangya Hospital of Central South University, 138 Tongzipo Rd, Changsha, Hunan, 410013, China.
| | - Jinsong Li
- Department of Orthopaedics, The Third Xiangya Hospital of Central South University, 138 Tongzipo Rd, Changsha, Hunan, 410013, China.
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8
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Ma H, Su L, He X, Miao J. Loss of HMBOX1 promotes LPS-induced apoptosis and inhibits LPS-induced autophagy of vascular endothelial cells in mouse. Apoptosis 2020; 24:946-957. [PMID: 31583496 DOI: 10.1007/s10495-019-01572-6] [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] [Indexed: 12/11/2022]
Abstract
Our previous study revealed that Homeobox containing 1 (HMBOX1), essential for the survival of vascular endothelial cells (VECs), was involved in the progression of atherosclerosis. Knockdown of HMBOX1 promoted apoptosis and inhibited autophagy through regulating intracellular free zinc level in cultured VECs. In current study, in order to investigate the roles of HMBOX1 in vivo and in endothelium, we generated a knockout (KO) mouse for HMBOX1 by using transcription activator-like effector nucleases (TALENs) technology. Herein, we reported that the protein level of HMBOX1 was gradually increased during mouse development. The HMBOX1 KO mouse was viable and fertile. There existed no differences in apoptosis and autophagy of aortic endothelial cells between wild type and KO mouse. Whereas, loss of HMBOX1 promoted apoptosis and inhibited autophagy of aortic endothelial cells under lipopolysaccharide (LPS) stimulation in mouse. We also demonstrated that HMBOX1 deletion had no influence on the secretion of inflammatory cytokines TNF-α and IL-6. Moreover, overexpression or knockdown of HMBOX1 failed to regulate multiple pro-apoptotic genes expression in vitro. In conclusion, HMBOX1 participated in the functional maintenance of mouse aortic endothelial cells, the aortic endothelial cells of HMBOX1 KO mouse showed increased apoptosis and decreased autophagy with LPS treatment.
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Affiliation(s)
- HanLin Ma
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, 266237, People's Republic of China.,Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, Jinan, 250012, People's Republic of China
| | - Le Su
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, 266237, People's Republic of China
| | - XiaoYing He
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, 266237, People's Republic of China
| | - JunYing Miao
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, 266237, People's Republic of China. .,The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Shandong University Qilu Hospital, Jinan, 250012, People's Republic of China.
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9
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Identifying Cattle Breed-Specific Partner Choice of Transcription Factors during the African Trypanosomiasis Disease Progression Using Bioinformatics Analysis. Vaccines (Basel) 2020; 8:vaccines8020246. [PMID: 32456126 PMCID: PMC7350023 DOI: 10.3390/vaccines8020246] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/13/2020] [Accepted: 05/21/2020] [Indexed: 12/18/2022] Open
Abstract
African Animal Trypanosomiasis (AAT) is a disease caused by pathogenic trypanosomes which affects millions of livestock every year causing huge economic losses in agricultural production especially in sub-Saharan Africa. The disease is spread by the tsetse fly which carries the parasite in its saliva. During the disease progression, the cattle are prominently subjected to anaemia, weight loss, intermittent fever, chills, neuronal degeneration, congestive heart failure, and finally death. According to their different genetic programs governing the level of tolerance to AAT, cattle breeds are classified as either resistant or susceptible. In this study, we focus on the cattle breeds N’Dama and Boran which are known to be resistant and susceptible to trypanosomiasis, respectively. Despite the rich literature on both breeds, the gene regulatory mechanisms of the underlying biological processes for their resistance and susceptibility have not been extensively studied. To address the limited knowledge about the tissue-specific transcription factor (TF) cooperations associated with trypanosomiasis, we investigated gene expression data from these cattle breeds computationally. Consequently, we identified significant cooperative TF pairs (especially DBP−PPARA and DBP−THAP1 in N’Dama and DBP−PAX8 in Boran liver tissue) which could help understand the underlying AAT tolerance/susceptibility mechanism in both cattle breeds.
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10
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Su M, Chen Z, Zheng J, Chen Y. Genetic variants in class II transactivator are associated with chronic hepatitis B virus infection in the Han Chinese population. Int J Immunogenet 2020; 47:435-442. [PMID: 32103629 DOI: 10.1111/iji.12483] [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: 11/26/2019] [Revised: 01/21/2020] [Accepted: 02/10/2020] [Indexed: 12/24/2022]
Abstract
Class II transactivator (CIITA) is a master regulator of MHC gene expression and plays a role in inducing the expression of other immune system genes, including IL-4, IL-10 and Fas ligand, as well as more than 60 other immunologically significant genes. We used CIITA as a candidate gene to analyse whether any single-nucleotide polymorphisms (SNPs) are associated with chronic hepatitis B virus (HBV) infection. In total, 773 patients with chronic HBV infection were enrolled in this hospital-based case-control study. The patients were divided into groups according to their clinical characteristics: 596 patients had chronic hepatitis B (CHB), and 177 patients had hepatocellular carcinoma (HCC). A total of 313 patients with self-limited HBV infection were selected as the control group. CIITA gene variants were screened using Haploview 4.2 software; improved multiplex ligation detection reaction technology was then used for genotype detection, and HaploReg v4.1 was employed to predict the functions of 15 variants. The results showed that SNPs in introns in the CIITA gene, namely, rs13333382 (TT + TA vs. AA: p = .003, odds ratio (OR) = 0.65, 95% confidence interval (CI) = 0.49-0.87) and rs4780335 (CC + CG vs. GG: p = 9.40 × 10-5 , OR = 0.55, 95% CI = 0.41-0.74), were positively associated with self-limited HBV infection in the dominant genetic model. Additionally, SNP rs1139564 (TT + TC vs. CC: p = .002, OR = 1.61, 95% CI = 1.19-2.16) in the 3' untranslated region may increase the risk of CHB. According to in silico analysis, all three statistically significant variants act as transcription factor binding motifs. However, we did not find that these 15 mutations are associated with HCC risk. Therefore, we believe that CIITA is a susceptibility gene for CHB rather than for HCC.
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Affiliation(s)
- Mingkuan Su
- Department of Laboratory Medicine, Mindong Hospital of Ningde City, Fuan, China.,Department of Laboratory Medicine, Mindong Hospital Affiliated with Fujian Medical University, Fuan, China
| | - Zongyun Chen
- Department of Laboratory Medicine, Mindong Hospital of Ningde City, Fuan, China.,Department of Laboratory Medicine, Mindong Hospital Affiliated with Fujian Medical University, Fuan, China
| | - Jinli Zheng
- Department of Laboratory Medicine, Mindong Hospital of Ningde City, Fuan, China.,Department of Laboratory Medicine, Mindong Hospital Affiliated with Fujian Medical University, Fuan, China
| | - Yong Chen
- Department of Laboratory Medicine, Mindong Hospital of Ningde City, Fuan, China.,Department of Laboratory Medicine, Mindong Hospital Affiliated with Fujian Medical University, Fuan, China
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11
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Chen Y, Zhou ZF, Wang Y. Prediction and analysis of weighted genes in isoflurane induced general anesthesia based on network analysis. Int J Neurosci 2019; 130:610-620. [PMID: 31801399 DOI: 10.1080/00207454.2019.1701452] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Purpose: Isoflurane is still wildly used in the developing countries and isoflurane-induced general anesthesia gives rise to serious side effects. The aim of the present study was to investigate the molecular mechanism on isoflurane-induced general anesthesia.Materials and methods: The microarray data of GSE64617 dataset was downloaded from Gene Expression Omnibus (GEO) database. A total of 755 DEGs were identified using the limma package in the R programming language. Gene Ontology (GO) enrichment analysis and Kyoto Encyclopedia of Genes, and Genomes (KEGG) pathways enrichment were conducted for DEGs. A protein-protein interaction (PPI) network was constructed for DEGs and sensory perception related genes. A global miRNA-mRNA regulatory network was constructed to reveal the interactions in miRNA and mRNA in isoflurane treated samples. Degree was used to evaluate the importance of a gene in the PPI network and miRNA-mRNA regulatory network.Results and conclusions: HMBOX1, CSNK2A1, PNN, SRRM1, PRPF40A, APCNTRK1, MAPK1, hsa-miR-16-5p, hsa-miR-424-5p, hsa-miR-497-5p and hsa-miR-17-5p were selected as weighted genes. The expression changes were further vitrificated in the rat models by performing quantitative real-time PCR (qPCR) analysis. In conclusion, we find several weighted mRNAs and miRNAs involved in isoflurane induced general anesthesia through bioinformatics analysis.
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Affiliation(s)
- Yue Chen
- Department of Anesthesiology, Zhejiang Provincial People's Hospital, Hangzhou, China.,People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Zhen-Feng Zhou
- Department of Anesthesiology, Zhejiang Provincial People's Hospital, Hangzhou, China.,People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Yu Wang
- Department of Anesthesiology, Zhejiang Provincial People's Hospital, Hangzhou, China.,People's Hospital of Hangzhou Medical College, Hangzhou, China
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12
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Diao N, Li Y, Yang J, Jin C, Meng X, Jiao W, Feng J, Liu Z, Lu N. High expression of HMBOX1 contributes to poor prognosis of gastric cancer by promoting cell proliferation and migration. Biomed Pharmacother 2019; 115:108867. [PMID: 31005794 DOI: 10.1016/j.biopha.2019.108867] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 03/24/2019] [Accepted: 04/09/2019] [Indexed: 02/06/2023] Open
Abstract
Homeobox-containing 1 (HMBOX1) has been reported to be associated with biological characteristics of some tumors, but its roles in gastric cancer have never been reported. In the present study, we found that HMBOX1 expression was significantly upregulated in gastric cancer tissues and cell lines and correlated with the TNM stage, lymph-node metastatic and the overall survival (OS) of patients of gastric cancer. The overexpression of HMBOX1 in gastric cancer cells enhanced cell proliferation by accelerating cell cycle, induced cell migration. In contrast, silencing HMBOX1 inhibited these processes. And the expression of HMBOX1 was related with the expression of vascular endothelial growth factor receptor (VEGFR), transforming growth factor-β (TGF-β) and CD133. What's more, we found that the expression of CD133 had a significantly positive correlation with HMBOX1 in gastric cancer tissues, and the co-expression of HMBOX1 and CD133 was significantly correlated with poor prognosis of gastric cancer patients, especially for patients at III and IV stage. In conclusion, HMBOX1 was upregulated in gastric cancer and correlated with gastric cancer cell proliferation and migration. Moreover, HMBOX1 combined CD133 might be useful to predict survival of patients with advanced gastric cancer.
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Affiliation(s)
- Nannan Diao
- Institute of Diagnostics, School of Medicine, Shandong University, Ji'nan, Shandong, China; Department of Clinical Laboratory, Shanghai Skin Disease Hospital, Shanghai, China
| | - Yuzheng Li
- Institute of Yantai, China Agricultural University, Beijing, China
| | - Jinling Yang
- Institute of Diagnostics, School of Medicine, Shandong University, Ji'nan, Shandong, China
| | - Chengjuan Jin
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Ji'nan, Shandong, China; Key Laboratory of Gynecologic Oncology of Shandong Province, Qilu Hospital, Shandong University, Ji'nan, Shandong, China
| | - Xiaohui Meng
- Institute of Diagnostics, School of Medicine, Shandong University, Ji'nan, Shandong, China
| | - Wenlin Jiao
- National Research Center for Assisted Reproductive Technology and Reproduction Genetics, Ji'nan, Shandong, China
| | - Jinbo Feng
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Ji'nan, Shandong, China; Key Laboratory of Gynecologic Oncology of Shandong Province, Qilu Hospital, Shandong University, Ji'nan, Shandong, China
| | - Zhenping Liu
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Ji'nan, Shandong, China; Key Laboratory of Gynecologic Oncology of Shandong Province, Qilu Hospital, Shandong University, Ji'nan, Shandong, China
| | - Nan Lu
- Institute of Diagnostics, School of Medicine, Shandong University, Ji'nan, Shandong, China.
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13
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Zhao H, Han Q, Lu N, Xu D, Tian Z, Zhang J. HMBOX1 in hepatocytes attenuates LPS/D-GalN-induced liver injury by inhibiting macrophage infiltration and activation. Mol Immunol 2018; 101:303-311. [PMID: 30032072 DOI: 10.1016/j.molimm.2018.07.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 07/12/2018] [Accepted: 07/13/2018] [Indexed: 12/11/2022]
Abstract
The HMBOX1 (Homeobox Containing 1) gene was first isolated from the human pancreatic cDNA libraries and is widely expressed in many tissues. Previously, we detected high expression of HMBOX1 in the liver, but its function was unclear. In this study, hepatocyte-specific HMBOX1 knockout mice (Hm△hep mice) were generated and used to characterize the function of HMBOX1 in the LPS/D-GalN-induced acute liver failure model. HMBOX1-knockout exhibits exacerbated liver injury induced by LPS/D-GalN, accompanied with high levels of inflammatory cytokines both in the liver and in circulation. Further investigation demonstrated that HMBOX1 negatively regulates NF-κB signal transduction. Therefore, HMBOX1-knockout in hepatocytes promotes CCL2 expression through the activation of NF-κB signaling, which enhanced the infiltration of macrophages into the liver. In addition, the decrease of HMBOX1 in hepatocytes promotes the activation of macrophages, upregulating CD80 and MHCⅡ, as well as inflammatory factors TNF-α and IL-6. Importantly, overexpression of HMBOX1 rescued liver injury in Hm△hep mice. These findings indicate that HMBOX1 in hepatocytes acts as a key immunosuppressive factor for inflammation and plays a critical protective role in LPS/D-GalN-induced liver injury.
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Affiliation(s)
- Hengli Zhao
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, China
| | - Qiuju Han
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, China
| | - Nan Lu
- Diagnostic Institute, Medical School, Shandong University, China
| | - Dongqing Xu
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, China
| | - Zhigang Tian
- Institute of Immunology, School of Life Sciences, University of Science and Technology of China, Hefei, China
| | - Jian Zhang
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, China.
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Alqadah A, Hsieh YW, Xiong R, Chuang CF. Stochastic left-right neuronal asymmetry in Caenorhabditis elegans. Philos Trans R Soc Lond B Biol Sci 2017; 371:rstb.2015.0407. [PMID: 27821536 DOI: 10.1098/rstb.2015.0407] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/20/2016] [Indexed: 12/28/2022] Open
Abstract
Left-right asymmetry in the nervous system is observed across species. Defects in left-right cerebral asymmetry are linked to several neurological diseases, but the molecular mechanisms underlying brain asymmetry in vertebrates are still not very well understood. The Caenorhabditis elegans left and right amphid wing 'C' (AWC) olfactory neurons communicate through intercellular calcium signalling in a transient embryonic gap junction neural network to specify two asymmetric subtypes, AWCOFF (default) and AWCON (induced), in a stochastic manner. Here, we highlight the molecular mechanisms that establish and maintain stochastic AWC asymmetry. As the components of the AWC asymmetry pathway are highly conserved, insights from the model organism C. elegans may provide a window onto how brain asymmetry develops in humans.This article is part of the themed issue 'Provocative questions in left-right asymmetry'.
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Affiliation(s)
- Amel Alqadah
- Department of Biological Sciences, University of Illinois at Chicago, IL 60607, USA
| | - Yi-Wen Hsieh
- Department of Biological Sciences, University of Illinois at Chicago, IL 60607, USA
| | - Rui Xiong
- Department of Biological Sciences, University of Illinois at Chicago, IL 60607, USA
| | - Chiou-Fen Chuang
- Department of Biological Sciences, University of Illinois at Chicago, IL 60607, USA
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15
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Li S, Nishikawa T, Kaneda Y. Inactivated Sendai virus particle upregulates cancer cell expression of intercellular adhesion molecule-1 and enhances natural killer cell sensitivity on cancer cells. Cancer Sci 2017; 108:2333-2341. [PMID: 28945328 PMCID: PMC5715349 DOI: 10.1111/cas.13408] [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: 04/13/2017] [Revised: 09/17/2017] [Accepted: 09/21/2017] [Indexed: 12/31/2022] Open
Abstract
We have already reported that the inactivated Sendai virus (hemagglutinating virus of Japan; HVJ) envelope (HVJ‐E) has multiple anticancer effects, including induction of cancer‐selective cell death and activation of anticancer immunity. The HVJ‐E stimulates dendritic cells to produce cytokines and chemokines such as β‐interferon, interleukin‐6, chemokine (C‐C motif) ligand 5, and chemokine (C‐X‐C motif) ligand 10, which activate both CD8+ T cells and natural killer (NK) cells and recruit them to the tumor microenvironment. However, the effect of HVJ‐E on modulating the sensitivity of cancer cells to immune cell attack has yet to be investigated. In this study, we found that HVJ‐E induced the production of intercellular adhesion molecule‐1 (ICAM‐1, CD54), a ligand of lymphocyte function‐associated antigen 1, in several cancer cell lines through the activation of nuclear factor‐κB downstream of retinoic acid‐inducible gene I and the mitochondrial antiviral signaling pathway. The upregulation of ICAM‐1 on the surface of cancer cells increased the sensitivity of cancer cells to NK cells. Knocking out expression of ICAM‐1 in MDA‐MB‐231 cells using the CRISPR/Cas9 method significantly reduced the killing effect of NK cells on ICAM‐1‐depleted MDA‐MB‐231 cells. In addition, HVJ‐E suppressed tumor growth in MDA‐MB‐231 tumor‐bearing SCID mice, and the HVJ‐E antitumor effect was impaired when NK cells were depleted by treatment with the anti‐asialo GM1 antibody. Our findings suggest that HVJ‐E enhances NK cell sensitivity against cancer cells by increasing ICAM‐1 expression on the cancer cell surface.
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Affiliation(s)
- Simin Li
- Division of Gene Therapy Science, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Tomoyuki Nishikawa
- Division of Gene Therapy Science, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yasufumi Kaneda
- Division of Gene Therapy Science, Graduate School of Medicine, Osaka University, Osaka, Japan
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16
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Zhang P, Liu Q, Yan S, Yuan G, Shen J, Li G. Homeobox‑containing protein 1 loss is associated with clinicopathological performance in glioma. Mol Med Rep 2017; 16:4101-4106. [PMID: 28731165 DOI: 10.3892/mmr.2017.7050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Accepted: 02/24/2017] [Indexed: 12/17/2022] Open
Abstract
Homeobox-containing protein 1 (HMBOX1) is a novel member of the homeobox family, and abnormal expression of HMBOX1 has been observed in several types of carcinoma. A total of 144 cases of confirmed glioma diagnoses were included in the present study. Grading was performed according to the World Health Organization (WHO) grading system for central nervous system neoplasm. Immunohistochemical staining of HMBOX1, proliferation marker protein Ki‑67 (Ki‑67) and microvessel density (MVD) was performed, and scores were calculated. HMBOX1 mRNA levels were detected using the reverse transcription quantitative polymerase chain reaction. It was identified that the expression of HMBOX1 was reduced in glioma tissue compared with normal brain tissue (P<0.05). The expression of HMBOX1 was downregulated significantly in WHO grade IV tumors compared with WHO grades II and III (P<0.05). HMBOX1 expression was significantly correlated with WHO grade, Karnofsky Performance Score, MVD and Ki‑67 expression; however, not associated with age or gender. Log‑rank testing did not demonstrate that HMBOX1 expression was associated with prognosis. In conclusion, HMBOX1 may be a potential diagnostic marker in glioma.
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Affiliation(s)
- Ping Zhang
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Qinglin Liu
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Shaofeng Yan
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Guang Yuan
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Jie Shen
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Gang Li
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
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17
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Sourour SK, Aboelenein HR, Elemam NM, Abdelhamid AK, Salah S, Abdelaziz AI. Unraveling the expression of microRNA-27a* & NKG2D in peripheral blood mononuclear cells and natural killer cells of pediatric systemic lupus erythematosus patients. Int J Rheum Dis 2017; 20:1237-1246. [PMID: 28523761 DOI: 10.1111/1756-185x.13099] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND AIM The activity of natural killer (NK) cells is known to be decreased in systemic lupus erythematosus (SLE) patients. Nevertheless, the exact contribution of NK cells in the pathogenesis of SLE is still inconclusive. MicroRNAs (miRNAs), are small noncoding RNA molecules that play a fundamental role in regulating NK cell function. The objective of this study was to investigate the expression of miRNAs that might potentially target an essential activating receptor, NKG2D in peripheral blood mononuclear cells (PBMCs) and NK cells of SLE patients. METHODS In silico analysis revealed miR-27a* to potentially target NKG2D messenger RNA (mRNA), hence PBMCs and NK cells were isolated from blood samples of SLE patients and healthy controls. Next, the cells were transfected using mimics and antagomirs, after which miRNA/mRNA were quantified using real time quantitative reverse transcription polymerase chain reaction. RESULTS The results of this study showed that miR-27a* is overexpressed in the PBMCs and NK cells of SLE patients. In contrast, NKG2D was found to be downregulated in PBMCs and NK cells of SLE patients. Forcing the expression of miR-27a* in PBMCs and NK cells enhances the expression of NKG2D in SLE patients. Furthermore, the ligand of NKG2D, ULBP2, was found to be downregulated in the PBMCs of SLE patients. CONCLUSION The altered expression of the triad, miR-27a* as well as NKG2D and ULBP2, is thought to be characteristic for NK cells in SLE patients. Hence, the ability of miR-27a* to alter the expression of NKG2D may provide a new groundwork for understanding the role of miRNAs in NK cells of SLE patients.
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Affiliation(s)
- Shady K Sourour
- Department of Pharmacology and Toxicology, German University in Cairo, Cairo, Egypt
| | - Heba R Aboelenein
- Department of Pharmacology and Toxicology, German University in Cairo, Cairo, Egypt
| | - Noha M Elemam
- Department of Pharmacology and Toxicology, German University in Cairo, Cairo, Egypt.,Sharjah Institute for Medical Research (SIMR), College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Amira K Abdelhamid
- Department of Pharmaceutical Biology, German University in Cairo, Cairo, Egypt
| | - Samia Salah
- Department of Pediatrics, Kasr AlAiny Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Ahmed I Abdelaziz
- Department of Pharmacology and Toxicology, German University in Cairo, Cairo, Egypt.,School of Medicine, NewGiza University (NGU), Cairo, Egypt
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Identification of high risk anaplastic gliomas by a diagnostic and prognostic signature derived from mRNA expression profiling. Oncotarget 2017; 6:36643-51. [PMID: 26436699 PMCID: PMC4742201 DOI: 10.18632/oncotarget.5421] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 09/16/2015] [Indexed: 01/01/2023] Open
Abstract
Anaplastic gliomas are characterized by variable clinical and genetic features, but there are few studies focusing on the substratification of anaplastic gliomas. To identify a more objective and applicable classification of anaplastic gliomas, we analyzed whole genome mRNA expression profiling of four independent datasets. Univariate Cox regression, linear risk score formula and receiver operating characteristic (ROC) curve were applied to derive a gene signature with best prognostic performance. The corresponding clinical and molecular information were further analyzed for interpretation of the different prognosis and the independence of the signature. Gene ontology (GO), Gene Set Variation Analysis (GSVA) and Gene Set Enrichment Analysis (GSEA) were performed for functional annotation of the differences. We found a three-gene signature, by applying which, the anaplastic gliomas could be divided into low risk and high risk groups. The two groups showed a high concordance with grade II and grade IV gliomas, respectively. The high risk group was more aggressive and complex. The three-gene signature showed diagnostic and prognostic value in anaplastic gliomas.
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Ma H, Su L, Zhang S, Kung H, Miao J. Inhibition of ANXA7 GTPase activity by a small molecule promotes HMBOX1 translation of vascular endothelial cells in vitro and in vivo. Int J Biochem Cell Biol 2016; 79:33-40. [DOI: 10.1016/j.biocel.2016.08.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 08/02/2016] [Accepted: 08/05/2016] [Indexed: 12/28/2022]
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20
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Yang Y, Han Q, Zhang C, Xiao M, Zhang J. Hepatitis B virus antigens impair NK cell function. Int Immunopharmacol 2016; 38:291-7. [PMID: 27341035 DOI: 10.1016/j.intimp.2016.06.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 05/30/2016] [Accepted: 06/17/2016] [Indexed: 12/12/2022]
Abstract
An inadequate immune response of the host is thought to be a critical factor causing chronic hepatitis B virus (CHB) infection. Natural killer (NK) cells, as one of the key players in the eradication and control of viral infections, were functionally impaired in CHB patients, which might contribute to viral persistence. Here, we reported that HBV antigens HBsAg and HBeAg directly inhibited NK cell function. HBsAg and/or HBeAg blocked NK cell activation, cytokine production and cytotoxic granule release in human NK cell-line NK-92 cells, which might be related to the downregulation of activating receptors and upregulation of inhibitory receptor. Furthermore, the underlying mechanisms likely involved the suppression of STAT1, NF-κB and p38 MAPK pathways. These findings implicated that HBV antigen-mediated inhibition of NK cells might be an efficient strategy for HBV evasion, targeting the early antiviral responses mediated by NK cells and resulting in the establishment of chronic virus infection. Therefore, this study revealed the relationship between viral antigens and human immune function, especially a potential important interaction between HBV and innate immune responses.
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Affiliation(s)
- Yinli Yang
- State Key Lab of Microbial Technology, National Glycoengineering Research Center, Shandong University, China; Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, China
| | - Qiuju Han
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, China
| | - Cai Zhang
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, China
| | - Min Xiao
- State Key Lab of Microbial Technology, National Glycoengineering Research Center, Shandong University, China; Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, China.
| | - Jian Zhang
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, China.
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21
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Exosomes mediate hepatitis B virus (HBV) transmission and NK-cell dysfunction. Cell Mol Immunol 2016; 14:465-475. [PMID: 27238466 PMCID: PMC5423088 DOI: 10.1038/cmi.2016.24] [Citation(s) in RCA: 148] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Revised: 04/03/2016] [Accepted: 04/04/2016] [Indexed: 02/06/2023] Open
Abstract
Evidence suggests that exosomes can transfer genetic material between cells. However, their roles in hepatitis B virus (HBV) infection remain unclear. Here, we report that exosomes present in the sera of chronic hepatitis B (CHB) patients contained both HBV nucleic acids and HBV proteins, and transferred HBV to hepatocytes in an active manner. Notably, HBV nucleic acids were detected in natural killer (NK) cells from both CHB patients and healthy donors after exposure to HBV-positive exosomes. Through real-time fluorescence microscopy and flow cytometry, 1,1'-dioctadecyl-3,3,3',3',-tetramethylindodicarbocyanine, 4-chlorobenzenesulfnate salt (DiD)-labeled exosomes were observed to interact with NK cells and to be taken up by NK cells, which was enhanced by transforming growth factor-β treatment. Furthermore, HBV-positive exosomes impaired NK-cell functions, including interferon (IFN)-γ production, cytolytic activity, NK-cell proliferation and survival, as well as the responsiveness of the cells to poly (I:C) stimulation. HBV infection suppressed the expression of pattern-recognition receptors, especially retinoic acid inducible gene I (RIG-I), on NK cells, resulting in the dampening of the nuclear factor κB(NF-κB) and p38 mitogen-activated protein kinase pathways. Our results highlight a previously unappreciated role of exosomes in HBV transmission and NK-cell dysfunction during CHB infection.
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22
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Pearson JD, Zhang J, Wu Z, Thew KD, Rowe KJ, Bacani JTC, Ingham RJ. Expression of granzyme B sensitizes ALK+ ALCL tumour cells to apoptosis-inducing drugs. Mol Cancer 2014; 13:199. [PMID: 25168906 PMCID: PMC4158053 DOI: 10.1186/1476-4598-13-199] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Accepted: 08/19/2014] [Indexed: 11/10/2022] Open
Abstract
Background The serine protease Granzyme B (GzB) is primarily expressed by cytotoxic T lymphocytes and natural killer cells, and functions in allowing these cells to induce apoptosis in virally-infected or transformed cells. Cancers of both lymphoid and non-lymphoid origin also express GzB, and in some cases this expression has been linked to pathogenesis or sensitizing tumour cells to cell death. For example, GzB expression in urothelial carcinoma was implicated in promoting tumour cell invasion, whereas its expression in nasal-type NK/T lymphomas was found to correlate with increased apoptosis. GzB expression is also a hallmark of the non-Hodgkin lymphoma, anaplastic lymphoma kinase-positive, anaplastic large cell lymphoma (ALK+ ALCL). Given the fact that ALK+ ALCL exhibits high levels of apoptosis and is typically responsive to conventional chemotherapy, we examined whether GzB expression might play a role in sensitizing ALK+ ALCL tumour cells to apoptosis. Methods ALK+ ALCL cell lines stably expressing GzB or non-targeting (control) shRNA were generated and apoptosis was examined by anti-PARP western blotting and terminal deoxynucleotidyl transferase dUTP nick end labelling. Both spontaneous apoptosis and apoptosis in response to treatment with staurosporine or doxorubicin were investigated. In order to assess whether additional granzymes might be important in promoting cell death in ALK+ ALCL, we examined whether other human granzymes were expressed in ALK+ ALCL cell lines using reverse-transcriptase PCR and western blotting. Results Expression of several GzB shRNAs in multiple ALK+ ALCL cell lines resulted in a significant decrease in GzB levels and activity. While spontaneous apoptosis was similar in ALK+ ALCL cell lines expressing either GzB or control shRNA, GzB shRNA-expressing cells were less sensitive to staurosporine or doxorubicin-induced apoptosis as evidenced by reduced PARP cleavage and decreased DNA fragmentation. Furthermore, we found that GzB is the only granzyme that is expressed at significant levels in ALK+ ALCL cell lines. Conclusions Our findings are the first to demonstrate that GzB expression sensitizes ALK+ ALCL cell lines to drug-induced apoptosis. This suggests that GzB expression may be a factor contributing to the favourable response of this lymphoma to treatment.
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Affiliation(s)
| | | | | | | | | | | | - Robert J Ingham
- Department of Medical Microbiology and Immunology and Li Ka Shing Institute of Virology, University of Alberta, Katz Group Centre for Pharmacy and Health Research, University of Alberta, Edmonton AB T6G 2E1, Canada.
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23
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Wang FW, Zhao F, Qian XY, Yu ZZ, Zhao J, Su L, Zhang Y, Zhang SL, Zhao BX, Miao JY. Identification of a small molecule preventing BMSC senescence in vitro by improving intracellular homeostasis via ANXA7 and Hmbox1. RSC Adv 2014. [DOI: 10.1039/c4ra10404h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ABO was discovered to be a novel anti-aging chemical in cultured BMSCs by improving intracellular homeostasis.
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Affiliation(s)
- Fang-Wu Wang
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100, P.R. China
| | - Fei Zhao
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100, P.R. China
| | - Xing-Yang Qian
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100, P.R. China
| | - Zhe-Zhen Yu
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100, P.R. China
| | - Jing Zhao
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100, P.R. China
| | - Le Su
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100, P.R. China
| | - Yun Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research
- Chinese Ministry of Education and Chinese Ministry of Health
- Shandong University Qilu Hospital
- Jinan, P.R. China
| | - Shang-Li Zhang
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100, P.R. China
| | - Bao-Xiang Zhao
- Institute of Organic Chemistry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100, P.R. China
| | - Jun-Ying Miao
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100, P.R. China
- The Key Laboratory of Cardiovascular Remodeling and Function Research
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Li J, Li H, Mao H, Yu M, Yang F, Feng T, Fan Y, Lu Q, Shen C, Yin Z, Mao M, Tu W. Impaired NK cell antiviral cytokine response against influenza virus in small-for-gestational-age neonates. Cell Mol Immunol 2013; 10:437-43. [PMID: 23872919 DOI: 10.1038/cmi.2013.31] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 06/03/2013] [Accepted: 06/04/2013] [Indexed: 01/26/2023] Open
Abstract
The neonates, particularly small-for-gestational-age (SGA) ones, are susceptible to various microbial infections. Natural killer (NK) cells are critical components of host innate immunity system and the main source of the inflammatory cytokines, which provide critical protection during the early phase of viral infections before the development of an appropriate adaptive immune response. However, little is known about the antiviral effects of NK cells in neonates especially the SGA population. Herein, a prospective descriptive study was performed to determine the differences of NK cell immunity among adults, appropriate-for gestational-age (AGA) and SGA neonates. Adults have much higher NK cell number in peripheral blood than that in cord blood from neonates. In response to influenza virus stimulation, neonatal NK cells, especially SGA baby cells, expressed significantly lower antiviral cytokines including perforin, interferon (IFN)-γ and tumor-necrosis factor (TNF)-α responses than adult NK cells. In addition, the antiviral cytokine responses of NK cells were positively correlated with neonatal birth weight. Our data suggested that the depressed antiviral activity and less frequency of NK cells are likely to be responsible for the high susceptibility to microbial infection in neonates, at least in part. Improving the function of innate immunity may provide a new way to defend virus infection.
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Affiliation(s)
- Jinrong Li
- The Joint Research Center of West China Second University Hospital of Sichuan University and Faculty of Medicine of the University of Hong Kong, Sichuan University, Chengdu, China
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25
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Cheng M, Chen Y, Xiao W, Sun R, Tian Z. NK cell-based immunotherapy for malignant diseases. Cell Mol Immunol 2013; 10:230-52. [PMID: 23604045 DOI: 10.1038/cmi.2013.10] [Citation(s) in RCA: 455] [Impact Index Per Article: 41.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Natural killer (NK) cells play critical roles in host immunity against cancer. In response, cancers develop mechanisms to escape NK cell attack or induce defective NK cells. Current NK cell-based cancer immunotherapy aims to overcome NK cell paralysis using several approaches. One approach uses expanded allogeneic NK cells, which are not inhibited by self histocompatibility antigens like autologous NK cells, for adoptive cellular immunotherapy. Another adoptive transfer approach uses stable allogeneic NK cell lines, which is more practical for quality control and large-scale production. A third approach is genetic modification of fresh NK cells or NK cell lines to highly express cytokines, Fc receptors and/or chimeric tumor-antigen receptors. Therapeutic NK cells can be derived from various sources, including peripheral or cord blood cells, stem cells or even induced pluripotent stem cells (iPSCs), and a variety of stimulators can be used for large-scale production in laboratories or good manufacturing practice (GMP) facilities, including soluble growth factors, immobilized molecules or antibodies, and other cellular activators. A list of NK cell therapies to treat several types of cancer in clinical trials is reviewed here. Several different approaches to NK-based immunotherapy, such as tissue-specific NK cells, killer receptor-oriented NK cells and chemically treated NK cells, are discussed. A few new techniques or strategies to monitor NK cell therapy by non-invasive imaging, predetermine the efficiency of NK cell therapy by in vivo experiments and evaluate NK cell therapy approaches in clinical trials are also introduced.
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Affiliation(s)
- Min Cheng
- Institute of Immunology, University of Science and Technology of China, Hefei, China
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26
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Li F, Tian Z. The liver works as a school to educate regulatory immune cells. Cell Mol Immunol 2013; 10:292-302. [PMID: 23604044 DOI: 10.1038/cmi.2013.7] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Accepted: 02/21/2013] [Indexed: 12/24/2022] Open
Abstract
Because of its unique blood supply, the liver maintains a special local immune tolerogenic microenvironment. Moreover, the liver can impart this immune tolerogenic effect on other organs, thus inducing systemic immune tolerance. The network of hepatic regulatory cells is an important mechanism underlying liver tolerance. Many types of liver-resident antigen-presenting cells (APCs) have immune regulatory function, and more importantly, they can also induce the differentiation of circulating immune cells into regulatory cells to further extend systemic tolerance. Thus, the liver can be seen as a type of 'school', where liver APCs function as 'teachers' and circulating immune cells function as 'students.'
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Affiliation(s)
- Fenglei Li
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, China
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27
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Jiang X, Chen Y, Peng H, Tian Z. Memory NK cells: why do they reside in the liver? Cell Mol Immunol 2013; 10:196-201. [PMID: 23563088 DOI: 10.1038/cmi.2013.8] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Immune memory is the hallmark of adaptive immunity. However, recent studies have shown that natural killer (NK) cells, key components of the innate immune system, also mediate memory responses in mice and humans. Strikingly, memory NK cells were liver-resident in some models, raising the question as to whether the liver is a special organ for the acquisition of NK cell memory. Here, we review the characteristics of NK cell memory by summarizing recent progress and discuss how the liver may generate both the initiation and the recall phase of memory. We propose that the liver may have unique precursors for memory NK cells, which are developmentally distinct from NK cells derived from bone marrow.
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Affiliation(s)
- Xiaojun Jiang
- Hefei National Laboratory for Physical Sciences at Microscale, Hefei, China
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28
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Abstract
Organs such as the liver, uterus and lung possess hallmark immunotolerant features, making these organs important for sustaining self-homeostasis. These organs contain a relatively large amount of negative regulatory immune cells, which are believed to take part in the regulation of immune responses. Because natural killer cells constitute a large proportion of all lymphocytes in these organs, increasing attention has been given to the roles that these cells play in maintaining immunotolerance. Here, we review the distribution, differentiation, phenotypic features and functional features of natural killer cells in these immunotolerant organs, in addition to the influence of local microenvironments on these cells and how these factors contribute to organ-specific diseases.
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Han L, Shao J, Su L, Gao J, Wang S, Zhang Y, Zhang S, Zhao B, Miao J. A chemical small molecule induces mouse embryonic stem cell differentiation into functional vascular endothelial cells via Hmbox1. Stem Cells Dev 2012; 21:2762-9. [PMID: 22671696 DOI: 10.1089/scd.2012.0055] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Embryonic stem cells (ESCs) can differentiate to endothelial progenitor cells and vascular endothelial cells (VECs), but the mechanism is largely unknown. In this study, we synthesized 2 chiral compounds (R-ABO and S-ABO) and identified R-ABO as an effective inducer of ESC differentiation into VECs. Furthermore, we found that R-ABO induced ESC differentiation into VECs via homeobox containing 1 (Hmbox1) that acted upstream of fibroblast growth factor 2 (FGF-2). The data suggest that R-ABO is a novel tool for ESC differentiation into VECs, and Hmbox1 is a key regulator in this differentiation process. These findings provide information on a novel target and a new platform for further investigating the gene control of ESC differentiation to VECs.
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Affiliation(s)
- Lei Han
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Jinan, China
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30
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Gong J, Liu R, Zhuang R, Zhang Y, Fang L, Xu Z, Jin L, Wang T, Song C, Yang K, Wei Y, Yang A, Jin B, Chen L. miR-30c-1* promotes natural killer cell cytotoxicity against human hepatoma cells by targeting the transcription factor HMBOX1. Cancer Sci 2012; 103:645-52. [PMID: 22320217 DOI: 10.1111/j.1349-7006.2012.02207.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 12/12/2011] [Accepted: 12/25/2011] [Indexed: 01/02/2023] Open
Abstract
Natural killer (NK) cells play a critical role in antitumor immunity, and the activation of NK cells is regulated by a series of NK cell receptors. Here, we show that crosslinking CD226, an important NK cell receptor, with the anti-CD226 mAb LeoA1 on NKL cells, regulated the expression of several microRNA and transmembrane tumor necrosis factor-α. Among them, miR-30c-1(*) was noticed because overexpression of miR-30c-1(*) triggered upregulation of transmembrane tumor necrosis factor-α expression and enhanced NK cell cytotoxicity against hepatoma cell lines SMMC-7721 and HepG2. Furthermore, we proved that the inhibitory transcription factor HMBOX1, which depressed the activation of NK cells, was the direct target gene of miR-30c-1(*). In conclusion, our results revealed a novel regulatory mechanism: miR-30c-1(*) promoted NK cell cytotoxicity against hepatoma cells by targeting HMBOX1.
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Affiliation(s)
- Jiuyu Gong
- Department of Immunology, Fourth Military Medical University, Xi'an, China
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