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Fàbrega C, Aviñó A, Navarro N, Jorge AF, Grijalvo S, Eritja R. Lipid and Peptide-Oligonucleotide Conjugates for Therapeutic Purposes: From Simple Hybrids to Complex Multifunctional Assemblies. Pharmaceutics 2023; 15:pharmaceutics15020320. [PMID: 36839642 PMCID: PMC9959333 DOI: 10.3390/pharmaceutics15020320] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/12/2023] [Accepted: 01/16/2023] [Indexed: 01/20/2023] Open
Abstract
Antisense and small interfering RNA (siRNA) oligonucleotides have been recognized as powerful therapeutic compounds for targeting mRNAs and inducing their degradation. However, a major obstacle is that unmodified oligonucleotides are not readily taken up into tissues and are susceptible to degradation by nucleases. For these reasons, the design and preparation of modified DNA/RNA derivatives with better stability and an ability to be produced at large scale with enhanced uptake properties is of vital importance to improve current limitations. In the present study, we review the conjugation of oligonucleotides with lipids and peptides in order to produce oligonucleotide conjugates for therapeutics aiming to develop novel compounds with favorable pharmacokinetics.
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Affiliation(s)
- Carme Fàbrega
- Nucleic Acids Chemistry Group, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, E-08034 Barcelona, Spain
- Networking Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Jordi Girona 18-26, E-08034 Barcelona, Spain
| | - Anna Aviñó
- Nucleic Acids Chemistry Group, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, E-08034 Barcelona, Spain
- Networking Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Jordi Girona 18-26, E-08034 Barcelona, Spain
| | - Natalia Navarro
- Nucleic Acids Chemistry Group, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, E-08034 Barcelona, Spain
- Networking Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Jordi Girona 18-26, E-08034 Barcelona, Spain
| | - Andreia F. Jorge
- Department of Chemistry, Coimbra Chemistry Centre (CQC), University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal
| | - Santiago Grijalvo
- Networking Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Jordi Girona 18-26, E-08034 Barcelona, Spain
- Colloidal and Interfacial Chemistry Group, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), E-08034 Barcelona, Spain
| | - Ramon Eritja
- Nucleic Acids Chemistry Group, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, E-08034 Barcelona, Spain
- Networking Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Jordi Girona 18-26, E-08034 Barcelona, Spain
- Correspondence: ; Tel.: +34-934006145
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2
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Clausse V, Zheng H, Amarasekara H, Kruhlak M, Appella DH. Thyclotides, tetrahydrofuran-modified peptide nucleic acids that efficiently penetrate cells and inhibit microRNA-21. Nucleic Acids Res 2022; 50:10839-10856. [PMID: 36215040 DOI: 10.1093/nar/gkac864] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 09/14/2022] [Accepted: 09/26/2022] [Indexed: 11/12/2022] Open
Abstract
Peptide nucleic acids (PNAs) are promising therapeutic molecules for gene modulation; however, they suffer from poor cell uptake. Delivery of PNAs into cells requires conjugation of the PNA to another large molecule, typically a cell-penetrating peptide or nanoparticle. In this study, we describe a new PNA-based molecule with cyclic tetrahydrofuran (THF) backbone modifications that in some cases considerably improve cell uptake. We refer to these THF-PNA oligomers as thyclotides. With THF groups at every position of the oligomer, the cell uptake of thyclotides targeted to miR-21 is enhanced compared with the corresponding unmodified PNA based on an aminoethylglycine backbone. An optimized thyclotide can efficiently enter cells without the use of cell-penetrating peptides, bind miR-21, its designated microRNA target, decrease expression of miR-21 and increase expression of three downstream targets (PTEN, Cdc25a and KRIT1). Using a plasmid with the PTEN-3'UTR coupled with luciferase, we further confirmed that a miR-21-targeted thyclotide prevents miR-21 from binding to its target RNA. Additionally, the thyclotide shows no cytotoxicity when administered at 200 times its active concentration. We propose that thyclotides be further explored as therapeutic candidates to modulate miRNA levels.
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Affiliation(s)
- Victor Clausse
- Synthetic Bioactive Molecules Section, Laboratory of Bioorganic Chemistry, NIDDK, National Institutes of Health, Bethesda, MD 20892, USA
| | - Hongchao Zheng
- Synthetic Bioactive Molecules Section, Laboratory of Bioorganic Chemistry, NIDDK, National Institutes of Health, Bethesda, MD 20892, USA
| | - Harsha Amarasekara
- Synthetic Bioactive Molecules Section, Laboratory of Bioorganic Chemistry, NIDDK, National Institutes of Health, Bethesda, MD 20892, USA
| | - Michael Kruhlak
- Microscopy Core Facility, Center for Cancer Research, NCI, National Institutes of Health, Bethesda, MD 20892, USA
| | - Daniel H Appella
- Synthetic Bioactive Molecules Section, Laboratory of Bioorganic Chemistry, NIDDK, National Institutes of Health, Bethesda, MD 20892, USA
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3
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HIV UTR, LTR, and Epigenetic Immunity. Viruses 2022; 14:v14051084. [PMID: 35632825 PMCID: PMC9146425 DOI: 10.3390/v14051084] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/05/2022] [Accepted: 05/13/2022] [Indexed: 02/06/2023] Open
Abstract
The duel between humans and viruses is unending. In this review, we examine the HIV RNA in the form of un-translated terminal region (UTR), the viral DNA in the form of long terminal repeat (LTR), and the immunity of human DNA in a format of epigenetic regulation. We explore the ways in which the human immune responses to invading pathogenic viral nucleic acids can inhibit HIV infection, exemplified by a chromatin vaccine (cVaccine) to elicit the immunity of our genome—epigenetic immunity towards a cure.
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4
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Banerjee N, Wang H, Wang G, Boor PJ, Khan MF. Differential Expression of miRNAs in Trichloroethene-Mediated Inflammatory/Autoimmune Response and Its Modulation by Sulforaphane: Delineating the Role of miRNA-21 and miRNA-690. Front Immunol 2022; 13:868539. [PMID: 35422807 PMCID: PMC9001960 DOI: 10.3389/fimmu.2022.868539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 02/28/2022] [Indexed: 11/13/2022] Open
Abstract
Trichloroethene (TCE), an occupational and ubiquitous environmental contaminant, is associated with the induction of autoimmune diseases (ADs). Although oxidative stress plays a major role in TCE-mediated autoimmunity, the underlying molecular mechanisms still need to be delineated. Altered non-coding RNAs, including the expression of microRNAs (miRNAs), can influence target genes, especially related to apoptosis and inflammation, and contribute to ADs. Therefore, the objective of this study was to delineate the contribution of miRNAs in TCE-mediated inflammatory and autoimmune response. To achieve this, we treated female MRL+/+ mice with TCE (10 mmol/kg in corn oil, i.p., every fourth day) with/without antioxidant sulforaphane (SFN; 8 mg/kg in corn oil, i.p., every other day) for 6 weeks. With the use of miRNA microarray, 293 miRNAs were analyzed, which included 35 miRNAs that were relevant to inflammation and ADs. Among those 35 miRNAs, 8 were modulated by TCE and/or TCE+SFN exposure. TCE treatment led to increased expression of 3 miRNAs and also decreased expression of 3 miRNAs. Interestingly, among the 35 differentially expressed miRNAs, antioxidant SFN modulated the expression of 6 miRNAs. Based on the microarray findings, we subsequently focused on two miRNAs (miRNA-21 and miRNA-690), which are known to be involved in inflammation and autoimmune response. The increases in miRNA-21 and miR-690 (observed using miRNA microarray) were further validated by RT-PCR, and the TCE-mediated increases in miR-21 and miR-690 were ameliorated by SFN treatment. Modulating miR-21 and miR-690 by respective inhibitors or mimics suppressed the expression of NF-κB (p65) and IL-12 in RAW 264.7 cells. Our findings suggest a contributory role of miR-21 and miR-690 in TCE-mediated and its metabolite dichloroacetyl chloride (DCAC)-mediated inflammation and autoimmune response and support that antioxidant SFN could be a potential therapeutic candidate for inflammatory responses and ADs.
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Affiliation(s)
- Nivedita Banerjee
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, United States
| | - Hui Wang
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, United States
| | - Gangduo Wang
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, United States
| | - Paul J Boor
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, United States
| | - M Firoze Khan
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, United States
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5
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Stromal Cell-Contact Dependent PI3K and APRIL Induced NF-κB Signaling Prevent Mitochondrial- and ER Stress Induced Death of Memory Plasma Cells. Cell Rep 2021; 32:107982. [PMID: 32755576 PMCID: PMC7408492 DOI: 10.1016/j.celrep.2020.107982] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 05/25/2020] [Accepted: 07/09/2020] [Indexed: 01/06/2023] Open
Abstract
The persistence of long-lived memory plasma cells in the bone marrow depends on survival factors available in the bone marrow, which are provided in niches organized by stromal cells. Using an ex vivo system in which we supply the known survival signals, direct cell contact to stromal cells, and the soluble cytokine a proliferation-inducing ligand (APRIL), we have elucidated the critical signaling pathways required for the survival of long-lived plasma cells. Integrin-mediated contact of bone marrow plasma cells with stromal cells activates the phosphatidylinositol 3-kinase (PI3K) signaling pathway, leading to critical inactivation of Forkhead-Box-Protein O1/3 (FoxO1/3) and preventing the activation of mitochondrial stress-associated effector caspases 3 and 7. Accordingly, inhibition of PI3K signaling in vivo ablates bone marrow plasma cells. APRIL signaling, by the nuclear factor κB (NF-κB) pathway, blocks activation of the endoplasmic-reticulum-stress-associated initiator caspase 12. Thus, stromal-cell-contact-induced PI3K and APRIL-induced NF-κB signaling provide the necessary and complementary signals to maintain bone marrow memory plasma cells.
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6
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Zhao B, Sun Q, Fan Y, Hu X, Li L, Wang J, Cui S. Transplantation of bone marrow-derived mesenchymal stem cells with silencing of microRNA-138 relieves pelvic organ prolapse through the FBLN5/IL-1β/elastin pathway. Aging (Albany NY) 2021; 13:3045-3059. [PMID: 33460398 PMCID: PMC7880387 DOI: 10.18632/aging.202465] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 09/14/2020] [Indexed: 02/06/2023]
Abstract
Nondegradable transvaginal polypropylene meshes for treating pelvic organ prolapse (POP) are now generally unavailable or banned due to serious adverse events. New tissue engineering approaches combine degradable scaffolds with mesenchymal stem/stromal cells from human endometrium (eMSC). In this study, we investigate effect of microRNA-138 (miR-138) regulation on bone marrow-derived mesenchymal stem cells (BMSCs) and the efficacy of BMSC transplantation therapy in a rat POP model. We first identified FBLN5 as a target of miR-138. miR-138, fibulin-5 (FBLN5), interleukin-1β (IL-1β), and elastin expression in uterosacral ligament of POP patients and controls were detected by reverse transcription quantitative polymerase chain reaction (RT-qPCR) and western blot analysis. After isolation and identification, BMSCs were treated to alter their expression of miR-138 or FBLN5. Proliferation of BMSCs was analyzed by CCK-8. After establishing the rat pelvic floor dysfunction (PFD) model, we evaluated efficacy of BMSC injection by applying leak point pressure (LPP) and the conscious cystometry (CMG) tests. miR-138 inhibition resulted in increased viability of BMSCs and elevated their secretion of elastin, while downregulating IL-1β expression. BMSCs with inhibited miR-138 improved LPP and conscious CMG results in vivo. Taken together, miR-138 could be a potential therapeutic target for treating POP in conjunction with tissue engineering.
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Affiliation(s)
- Bing Zhao
- Department of Gynaecology and Obstetrics, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, PR China
| | - Qing Sun
- Department of Gynaecology and Obstetrics, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, PR China
| | - Yazhou Fan
- Department of Gynaecology and Obstetrics, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, PR China
| | - Xinming Hu
- Department of Gynaecology and Obstetrics, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, PR China
| | - Linyu Li
- Department of Scientific Research, Xinxiang Medical University Sanquan Medical College, Xinxiang 453003, Henan Province, PR China
| | - Junmin Wang
- Department of Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450000, Henan Province, PR China
| | - Shihong Cui
- Department of Gynaecology and Obstetrics, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, PR China
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7
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Hu H, Dong L, Bu Z, Shen Y, Luo J, Zhang H, Zhao S, Lv F, Liu Z. miR-23a-3p-abundant small extracellular vesicles released from Gelma/nanoclay hydrogel for cartilage regeneration. J Extracell Vesicles 2020; 9:1778883. [PMID: 32939233 PMCID: PMC7480606 DOI: 10.1080/20013078.2020.1778883] [Citation(s) in RCA: 131] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Articular cartilage has limited self-regenerative capacity and the therapeutic methods for cartilage defects are still dissatisfactory in clinic. Recent studies showed that exosomes derived from mesenchymal stem cells promoted chondrogenesis by delivering bioactive substances to the recipient cells, indicating exosomes might be a novel method for repairing cartilage defect. Herein, we investigated the role and mechanism of human umbilical cord mesenchymal stem cells derived small extracellular vesicles (hUC-MSCs-sEVs) on cartilage regeneration. In vitro results showed that hUC-MSCs-sEVs promoted the migration, proliferation and differentiation of chondrocytes and human bone marrow mesenchymal stem cells (hBMSCs). MiRNA microarray showed that miR-23a-3p was the most highly expressed among the various miRNAs contained in hUC-MSCs-sEVs. Our data revealed that hUC-MSCs-sEVs promoted cartilage regeneration by transferring miR-23a-3p to suppress the level of PTEN and elevate expression of AKT. Moreover, we fabricated Gelatin methacrylate (Gelma)/nanoclay hydrogel (Gel-nano) for sustained release of sEVs, which was biocompatible and exhibited excellent mechanical property. In vivo results showed that hUC-MSCs-sEVs containing Gelma/nanoclay hydrogel (Gel-nano-sEVs) effectively promoted cartilage regeneration. These results indicated that Gel-nano-sEVs have a promising capacity to stimulate chondrogenesis and heal cartilage defects, and also provided valuable data for understanding the role and mechanism of hUC-MSCs-sEVs in cartilage regeneration.
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Affiliation(s)
- Hongxing Hu
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Lanlan Dong
- School of Mechanical Engineering, Shanghai Jiao Tong University, State Key Laboratory of Mechanical System and Vibration, Shanghai, China
| | - Ziheng Bu
- Department of Orthopedics, Changhai Hospital Affiliated to the Second Military Medical University, Shanghai, China
| | - Yifan Shen
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jian Luo
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Science and School of Life Science, East China Normal University, Shanghai, China
| | - Hang Zhang
- School of Mechanical Engineering, Shanghai Jiao Tong University, State Key Laboratory of Mechanical System and Vibration, Shanghai, China
| | - Shichang Zhao
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Fang Lv
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Science and School of Life Science, East China Normal University, Shanghai, China.,Southern Medical University Affiliated Fengxian Hospital, Shanghai, China
| | - Zhongtang Liu
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopedics, Changhai Hospital Affiliated to the Second Military Medical University, Shanghai, China
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8
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Zhang ZW, Wang M, Hu JJ, Xu G, Zhang Y, Zhang N. Decreased Expression of MicroRNA-107 in B Lymphocytes of Patients with Antibody-Mediated Renal Allograft Rejection. TOHOKU J EXP MED 2018; 246:87-96. [PMID: 30333363 DOI: 10.1620/tjem.246.87] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
MicroRNAs (miRNAs) are small noncoding RNA molecules that participate in normal B cell lineage development through posttranscriptional gene regulation. Antibody-mediated renal allograft rejection (ABMR) is emerging as one of the most common serious threats to renal transplant patients. In this study, we explored the role of miRNAs in the pathogenesis of ABMR. The differentially expressed miRNAs were identified by Affymetrix miRNA microarray analysis using B lymphocytes from 5 recipients and 5 volunteers. Based on quantitative RT-PCR, the expression levels of miR-107 were lower in the B lymphocytes from recipients than in those from volunteers. Computational analysis predicted that 3'-untranslated region of the autophagy-related protein 12 (ATG12) mRNA was targeted by miR-107, and we identified ATG12 as a target of miR-107 by Luciferase assay. Importantly, the expression levels of ATG12 in B lymphocytes of recipients were higher than those in the volunteer group, and miR-107 mimic significantly decreased ATG12 expression and formation of autolysosomes in B lymphocytes of recipients. Furthermore, we observed that levels of autophagy in B lymphocytes of transplant recipients were higher than those in B cells from volunteers. These findings suggest that miR-107 may contribute to the regulation of autophagy via targeting ATG12. Lastly, treatment with an miR-107 mimic caused the decrease in the secretion of IgG and IgM antibodies from B lymphocytes of transplant recipients, indicating that deregulated miR-107 could be involved in the pathogenesis of ABMR. Taken together, we propose that decreased miR-107 expression is associated with autophagy activation in B lymphocytes from patients with ABMR.
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Affiliation(s)
- Zhe-Wei Zhang
- Urology Department, The Second Affiliated Hospital, Zhejiang University School of Medicine
| | - Ming Wang
- Urology Department, The Second Affiliated Hospital, Zhejiang University School of Medicine
| | - Jun-Jie Hu
- Urology Department, Lanxi Branch of Lanxi People's Hospital, The Second Affiliated Hospital Zhejiang University School of Medicine
| | - Gang Xu
- Urology Department, The Second Affiliated Hospital, Zhejiang University School of Medicine
| | - Yong Zhang
- Urology Department, The Second Affiliated Hospital, Zhejiang University School of Medicine
| | - Nan Zhang
- Urology Department, The Second Affiliated Hospital, Zhejiang University School of Medicine
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9
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Bardua M, Haftmann C, Durek P, Westendorf K, Buttgereit A, Tran CL, McGrath M, Weber M, Lehmann K, Addo RK, Heinz GA, Stittrich AB, Maschmeyer P, Radbruch H, Lohoff M, Chang HD, Radbruch A, Mashreghi MF. MicroRNA-31 Reduces the Motility of Proinflammatory T Helper 1 Lymphocytes. Front Immunol 2018; 9:2813. [PMID: 30574141 PMCID: PMC6291424 DOI: 10.3389/fimmu.2018.02813] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 11/14/2018] [Indexed: 12/27/2022] Open
Abstract
Proinflammatory type 1 T helper (Th1) cells are enriched in inflamed tissues and contribute to the maintenance of chronic inflammation in rheumatic diseases. Here we show that the microRNA- (miR-) 31 is upregulated in murine Th1 cells with a history of repeated reactivation and in memory Th cells isolated from the synovial fluid of patients with rheumatic joint disease. Knock-down of miR-31 resulted in the upregulation of genes associated with cytoskeletal rearrangement and motility and induced the expression of target genes involved in T cell activation, chemokine receptor- and integrin-signaling. Accordingly, inhibition of miR-31 resulted in increased migratory activity of repeatedly activated Th1 cells. The transcription factors T-bet and FOXO1 act as positive and negative regulators of T cell receptor (TCR)-mediated miR-31 expression, respectively. Taken together, our data show that a gene regulatory network involving miR-31, T-bet, and FOXO1 controls the migratory behavior of proinflammatory Th1 cells.
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Affiliation(s)
- Markus Bardua
- Deutsches Rheuma-Forschungszentrum (DRFZ), Berlin, Germany
| | | | - Pawel Durek
- Deutsches Rheuma-Forschungszentrum (DRFZ), Berlin, Germany
| | | | | | - Cam Loan Tran
- Deutsches Rheuma-Forschungszentrum (DRFZ), Berlin, Germany
| | - Mairi McGrath
- Deutsches Rheuma-Forschungszentrum (DRFZ), Berlin, Germany
| | - Melanie Weber
- Deutsches Rheuma-Forschungszentrum (DRFZ), Berlin, Germany
| | - Katrin Lehmann
- Deutsches Rheuma-Forschungszentrum (DRFZ), Berlin, Germany
| | | | | | | | | | - Helena Radbruch
- Department of Neuropathology, Charité-Universitätsmedizin, Berlin, Germany
| | - Michael Lohoff
- Institute for Medical Microbiology and Hospital Hygiene, University of Marburg, Marburg, Germany
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10
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Farroni C, Marasco E, Marcellini V, Giorda E, Valentini D, Petrini S, D'Oria V, Pezzullo M, Cascioli S, Scarsella M, Ugazio AG, De Vincentiis GC, Grimsholm O, Carsetti R. Dysregulated miR-155 and miR-125b Are Related to Impaired B-cell Responses in Down Syndrome. Front Immunol 2018; 9:2683. [PMID: 30515165 PMCID: PMC6255899 DOI: 10.3389/fimmu.2018.02683] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 10/30/2018] [Indexed: 12/21/2022] Open
Abstract
Children with Down Syndrome (DS) suffer from immune deficiency with a severe reduction in switched memory B cells (MBCs) and poor response to vaccination. Chromosome 21 (HSA21) encodes two microRNAs (miRs), miR-125b, and miR-155, that regulate B-cell responses. We studied B- and T- cell subpopulations in tonsils of DS and age-matched healthy donors (HD) and found that the germinal center (GC) reaction was impaired in DS. GC size, numbers of GC B cells and Follicular Helper T cells (TFH) expressing BCL6 cells were severely reduced. The expression of miR-155 and miR-125b was increased in tonsillar memory B cells and miR-125b was also higher than expected in plasma cells (PCs). Activation-induced cytidine deaminase (AID) protein, a miR-155 target, was significantly reduced in MBCs of DS patients. Increased expression of miR-155 was also observed in vitro. MiR-155 was significantly overexpressed in PBMCs activated with CpG, whereas miR-125b was constitutively higher than normal. The increase of miR-155 and its functional consequences were blocked by antagomiRs in vitro. Our data show that the expression of HSA21-encoded miR-155 and miR-125b is altered in B cells of DS individuals both in vivo and in vitro. Because of HSA21-encoded miRs may play a role also in DS-associated dementia and leukemia, our study suggests that antagomiRs may represent pharmacological tools useful for the treatment of DS.
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Affiliation(s)
- Chiara Farroni
- B cell Pathophysiology Unit, Immunology Research Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Emiliano Marasco
- Division of Rheumatology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | | | - Ezio Giorda
- Research Laboratories, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Diletta Valentini
- Pediatric and Infectious Disease Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Stefania Petrini
- Research Laboratories, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Valentina D'Oria
- Research Laboratories, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Marco Pezzullo
- Research Laboratories, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Simona Cascioli
- B cell Pathophysiology Unit, Immunology Research Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Marco Scarsella
- Research Laboratories, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Alberto G Ugazio
- Institute of Child and Adolescent Health, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | | | - Ola Grimsholm
- B cell Pathophysiology Unit, Immunology Research Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.,Department of Rheumatology and Inflammation Research, University of Gothenburg, Gothenburg, Sweden
| | - Rita Carsetti
- B cell Pathophysiology Unit, Immunology Research Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.,Unit of Diagnostic Immunology, Department of Laboratories, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
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11
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Thiel J, Alter C, Luppus S, Eckstein A, Tan S, Führer D, Pastille E, Westendorf AM, Buer J, Hansen W. MicroRNA-183 and microRNA-96 are associated with autoimmune responses by regulating T cell activation. J Autoimmun 2018; 96:94-103. [PMID: 30201436 DOI: 10.1016/j.jaut.2018.08.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 08/28/2018] [Accepted: 08/29/2018] [Indexed: 12/12/2022]
Abstract
MircoRNAs (miRs) are small molecules that regulate gene expression at the posttranscriptional level. They have been proposed to be involved in the regulation of several immune responses including autoimmunity. Here, we identified miR-183 and miR-96 to be highly expressed in CD4+ T cells from peripheral blood of Graves' orbitopathy (GO) patients as well as in human and murine T cells upon activation in vitro. By using Luciferase-based binding assays, we identified EGR-1 as target for miR-183 and miR-96. Overexpression of miR-183 and miR-96 in murine CD4+ T cells by retroviral gene transfer resulted in decreased EGR-1 and PTEN expression, elevated Akt phosphorylation and enhanced proliferation. In contrast, treatment of murine CD4+ T cells with specific antagomiRs increased EGR-1 and PTEN expression and interfered with the proliferative activity upon stimulation in vitro. Strikingly, adoptive transfer of miR-183 and miR-96 overexpressing antigen-specific T cells into INS-HA/Rag2KO mice accelerated the development of autoimmune diabetes, whereas transfer of antagomiR-treated cells delayed the disease onset. These results indicate that miR-183 and miR-96 have the ability to regulate the strength of T cell activation and thereby the development and severity of T cell-dependent autoimmune diseases.
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Affiliation(s)
- Jacqueline Thiel
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Germany
| | - Christina Alter
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Germany
| | - Sina Luppus
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Germany
| | - Anja Eckstein
- Department of Ophthalmology, University Hospital Essen, University Duisburg-Essen, Germany
| | - Susanne Tan
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Essen, University Duisburg-Essen, Germany
| | - Dagmar Führer
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Essen, University Duisburg-Essen, Germany
| | - Eva Pastille
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Germany
| | - Astrid M Westendorf
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Germany
| | - Jan Buer
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Germany
| | - Wiebke Hansen
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Germany.
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12
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Kumar V, Kumar A, Das S, Kumar A, Abhishek K, Verma S, Mandal A, Singh RK, Das P. Leishmania donovani Activates Hypoxia Inducible Factor-1α and miR-210 for Survival in Macrophages by Downregulation of NF-κB Mediated Pro-inflammatory Immune Response. Front Microbiol 2018; 9:385. [PMID: 29568285 PMCID: PMC5852103 DOI: 10.3389/fmicb.2018.00385] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 02/20/2018] [Indexed: 12/13/2022] Open
Abstract
Micro RNAs (miRNAs) have emerged as a critical regulator of several biological processes in both animals and plants. They have also been associated with regulation of immune responses in many human diseases during recent years. Visceral leishmaniasis (VL) is the most severe form of leishmaniasis, which is characterized by impairment of both innate and adaptive immune responses. In the present study, we observed that Leishmania establishes hypoxic environment in host macrophages that induces the expression of hypoxia inducible factor-1α (HIF-1α) and miRNA-210. Further, the expression of miRNA-210 was found to be dependent on activation of HIF-1α expression. The HIF-1α silencing by siRNA resulted in significantly (p < 0.001) decreased expression of miR-210 in parasites infected macrophages. We also observed that in siHIF-1α or antagomir-210 treated L. donovani infected macrophages, the parasitic load and percentage infectivity were significantly (p < 0.001) decreased. Furthermore, we found that inhibition of miR-210 leads to activation of NF-κB subunit p50, and it forms heterodimer with p65 and translocates into the nucleus from the cytoplasm. This significantly (p < 0.05) induced the transcription of pro-inflammatory cytokines genes such as TNF-α and IL-12 in miRNA-210 inhibited macrophages compared to uninhibited macrophages whereas the level of IL-10, an anti-inflammatory cytokine, was found to be significantly decreased (p < 0.001). These findings suggested that L. donovani infection induces hypoxic environment inside the macrophages that activates HIF-1α. Further, HIF-1α upregulates miR-210, which eventually establishes a suitable environment for the survival of parasite inside the host macrophages by downregulating NF-κB mediated pro-inflammatory immune responses.
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Affiliation(s)
- Vinod Kumar
- Division of Molecular Biology, Rajendra Memorial Research Institute of Medical Sciences (ICMR), Patna, India
| | - Ajay Kumar
- Division of Molecular Biology, Rajendra Memorial Research Institute of Medical Sciences (ICMR), Patna, India
| | - Sushmita Das
- Department of Microbiology, All India Institute of Medical Sciences, Patna, India
| | - Ashish Kumar
- Division of Molecular Biology, Rajendra Memorial Research Institute of Medical Sciences (ICMR), Patna, India
| | - Kumar Abhishek
- Division of Molecular Biology, Rajendra Memorial Research Institute of Medical Sciences (ICMR), Patna, India
| | - Sudha Verma
- Division of Molecular Biology, Rajendra Memorial Research Institute of Medical Sciences (ICMR), Patna, India
| | - Abhishek Mandal
- Division of Molecular Biology, Rajendra Memorial Research Institute of Medical Sciences (ICMR), Patna, India
| | - Rakesh K Singh
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Pradeep Das
- Division of Molecular Biology, Rajendra Memorial Research Institute of Medical Sciences (ICMR), Patna, India
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13
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El Bairi K, Tariq K, Himri I, Jaafari A, Smaili W, Kandhro AH, Gouri A, Ghazi B. Decoding colorectal cancer epigenomics. Cancer Genet 2018; 220:49-76. [PMID: 29310839 DOI: 10.1016/j.cancergen.2017.11.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 11/01/2017] [Accepted: 11/06/2017] [Indexed: 02/07/2023]
Abstract
Colorectal cancer (CRC) is very heterogeneous and presents different types of epigenetic alterations including DNA methylation, histone modifications and microRNAs. These changes are considered as characteristics of various observed clinical phenotypes. Undoubtedly, the discovery of epigenetic pathways with novel epigenetic-related mechanisms constitutes a promising advance in cancer biomarker discovery. In this review, we provide an evidence-based discussing of the current understanding of CRC epigenomics and its role in initiation, epithelial-to-mesenchymal transition and metastasis. We also discuss the recent findings regarding the potential clinical perspectives of these alterations as potent biomarkers for CRC diagnosis, prognosis, and therapy in the era of liquid biopsy.
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Affiliation(s)
- Khalid El Bairi
- Independent Research Team in Cancer Biology and Bioactive Compounds, Mohamed 1(st) University, Oujda, Morocco.
| | - Kanwal Tariq
- B-10 Jumani Center, Garden East, Karachi 74400, Pakistan
| | - Imane Himri
- Laboratory of Biochemistry, Faculty of Sciences, Mohamed I(st) Universiy, Oujda, Morocco; Delegation of the Ministry of Health, Oujda, Morocco
| | - Abdeslam Jaafari
- Laboratoire de Génie Biologique, Equipe d'Immunopharmacologie, Faculté des Sciences et Techniques, Université Sultan Moulay Slimane, Beni Mellal, Maroc
| | - Wiam Smaili
- Centre de Génomique Humaine, Faculté de Médecine et de Pharmacie, Université Mohamed V, Rabat, Maroc; Département de Génétique Médicale, Institut National d'Hygiène, Rabat, Maroc
| | - Abdul Hafeez Kandhro
- Department of Biochemistry, Healthcare Molecular and Diagnostic Laboratory, Hyderabad, Pakistan
| | - Adel Gouri
- Laboratory of Medical Biochemistry, Ibn Rochd University Hospital, Annaba, Algeria
| | - Bouchra Ghazi
- National Laboratory of Reference, Faculty of Medicine, Mohammed VI University of Health Sciences (UM6SS), Casablanca, Morocco
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14
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Maschmeyer P, Petkau G, Siracusa F, Zimmermann J, Zügel F, Kühl AA, Lehmann K, Schimmelpfennig S, Weber M, Haftmann C, Riedel R, Bardua M, Heinz GA, Tran CL, Hoyer BF, Hiepe F, Herzog S, Wittmann J, Rajewsky N, Melchers FG, Chang HD, Radbruch A, Mashreghi MF. Selective targeting of pro-inflammatory Th1 cells by microRNA-148a-specific antagomirs in vivo. J Autoimmun 2017; 89:41-52. [PMID: 29183643 PMCID: PMC5916452 DOI: 10.1016/j.jaut.2017.11.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 11/15/2017] [Accepted: 11/16/2017] [Indexed: 12/02/2022]
Abstract
In T lymphocytes, expression of miR-148a is induced by T-bet and Twist1, and is specific for pro-inflammatory Th1 cells. In these cells, miR-148a inhibits the expression of the pro-apoptotic protein Bim and promotes their survival. Here we use sequence-specific cholesterol-modified oligonucleotides against miR-148a (antagomir-148a) for the selective elimination of pro-inflammatory Th1 cells in vivo. In the murine model of transfer colitis, antagomir-148a treatment reduced the number of pro-inflammatory Th1 cells in the colon of colitic mice by 50% and inhibited miR-148a expression by 71% in the remaining Th1 cells. Expression of Bim protein in colonic Th1 cells was increased. Antagomir-148a-mediated reduction of Th1 cells resulted in a significant amelioration of colitis. The effect of antagomir-148a was selective for chronic inflammation. Antigen-specific memory Th cells that were generated by an acute immune reaction to nitrophenylacetyl-coupled chicken gamma globulin (NP-CGG) were not affected by treatment with antagomir-148a, both during the effector and the memory phase. In addition, antibody titers to NP-CGG were not altered. Thus, antagomir-148a might qualify as an effective drug to selectively deplete pro-inflammatory Th1 cells of chronic inflammation without affecting the protective immunological memory. Th1 cells expressing miR-148a mediate colitis in a murine model of IBD. Antagomir-148a inhibits colitis by selectively depleting Th1 cells from the colon. Antagomir-148a does not affect the protective immunological memory.
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Affiliation(s)
| | - Georg Petkau
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), Germany
| | | | | | | | - Anja Andrea Kühl
- Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, Campus Benjamin Franklin, Berlin, Germany
| | - Katrin Lehmann
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), Germany
| | | | - Melanie Weber
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), Germany
| | | | - René Riedel
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), Germany
| | - Markus Bardua
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), Germany
| | | | - Cam Loan Tran
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), Germany
| | - Bimba Franziska Hoyer
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), Germany; Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, Campus Benjamin Franklin, Berlin, Germany
| | - Falk Hiepe
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), Germany; Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin und Berlin Institute of Health, Campus Benjamin Franklin, Berlin, Germany
| | - Sebastian Herzog
- Division of Developmental Immunology, BIOCENTER, Medical University Innsbruck, Innsbruck, Austria
| | - Jürgen Wittmann
- Division of Molecular Immunology, Department of Internal Medicine III, Nikolaus-Fiebiger-Center, University of Erlangen-Nürnberg, Erlangen, Germany
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15
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Friedrich M, Pracht K, Mashreghi MF, Jäck HM, Radbruch A, Seliger B. The role of the miR-148/-152 family in physiology and disease. Eur J Immunol 2017; 47:2026-2038. [DOI: 10.1002/eji.201747132] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 07/30/2017] [Accepted: 09/01/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Michael Friedrich
- Institute of Medical Immunology; Martin-Luther-University Halle-Wittenberg; Halle/Saale Germany
| | - Katharina Pracht
- Division of Molecular Immunology; Nikolaus-Fiebiger Center; Department of Internal Medicine III; University of Erlangen-Nürnberg; Erlangen Germany
| | | | - Hans-Martin Jäck
- Division of Molecular Immunology; Nikolaus-Fiebiger Center; Department of Internal Medicine III; University of Erlangen-Nürnberg; Erlangen Germany
| | | | - Barbara Seliger
- Institute of Medical Immunology; Martin-Luther-University Halle-Wittenberg; Halle/Saale Germany
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16
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Mulholland EJ, Dunne N, McCarthy HO. MicroRNA as Therapeutic Targets for Chronic Wound Healing. MOLECULAR THERAPY-NUCLEIC ACIDS 2017; 8:46-55. [PMID: 28918046 PMCID: PMC5485763 DOI: 10.1016/j.omtn.2017.06.003] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Revised: 06/06/2017] [Accepted: 06/06/2017] [Indexed: 12/15/2022]
Abstract
Wound healing is a highly complex biological process composed of three overlapping phases: inflammation, proliferation, and remodeling. Impairments at any one or more of these stages can lead to compromised healing. MicroRNAs (miRs) are non-coding RNAs that act as post-transcriptional regulators of multiple proteins and associated pathways. Thus, identification of the appropriate miR involved in the different phases of wound healing could reveal an effective third-generation genetic therapy in chronic wound care. Several miRs have been shown to be upregulated or downregulated during the wound healing process. This article examines the biological processes involved in wound healing, the miR involved at each stage, and how expression levels are modulated in the chronic wound environment. Key miRs are highlighted as possible therapeutic targets, either through underexpression or overexpression, and the healing benefits are interrogated. These are prime miR candidates that could be considered as a gene therapy option for patients suffering from chronic wounds. The success of miR as a gene therapy, however, is reliant on the development of an appropriate delivery system that must be designed to overcome both extracellular and intracellular barriers.
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Affiliation(s)
- Eoghan J Mulholland
- School of Pharmacy, Queen's University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Nicholas Dunne
- School of Pharmacy, Queen's University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Stokes Building, Collins Avenue, Dublin 9, Ireland; Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin 2, Ireland.
| | - Helen O McCarthy
- School of Pharmacy, Queen's University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
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17
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Amaral AJ, Andrade J, Foxall RB, Matoso P, Matos AM, Soares RS, Rocha C, Ramos CG, Tendeiro R, Serra-Caetano A, Guerra-Assunção JA, Santa-Marta M, Gonçalves J, Gama-Carvalho M, Sousa AE. miRNA profiling of human naive CD4 T cells links miR-34c-5p to cell activation and HIV replication. EMBO J 2017; 36:346-360. [PMID: 27993935 PMCID: PMC5286376 DOI: 10.15252/embj.201694335] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 10/25/2016] [Accepted: 10/31/2016] [Indexed: 01/16/2023] Open
Abstract
Cell activation is a vital step for T-cell memory/effector differentiation as well as for productive HIV infection. To identify novel regulators of this process, we used next-generation sequencing to profile changes in microRNA expression occurring in purified human naive CD4 T cells in response to TCR stimulation and/or HIV infection. Our results demonstrate, for the first time, the transcriptional up-regulation of miR-34c-5p in response to TCR stimulation in naive CD4 T cells. The induction of this miR was further consistently found to be reduced by both HIV-1 and HIV-2 infections. Overexpression of miR-34c-5p led to changes in the expression of several genes involved in TCR signaling and cell activation, confirming its role as a novel regulator of naive CD4 T-cell activation. We additionally show that miR-34c-5p promotes HIV-1 replication, suggesting that its down-regulation during HIV infection may be part of an anti-viral host response.
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Affiliation(s)
- Andreia J Amaral
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
- University of Lisboa, Faculty of Sciences, BioISI - Biosystems & Integrative Sciences Institute, Lisboa, Portugal
| | - Jorge Andrade
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
- University of Lisboa, Faculty of Sciences, BioISI - Biosystems & Integrative Sciences Institute, Lisboa, Portugal
| | - Russell B Foxall
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Paula Matoso
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Ana M Matos
- University of Lisboa, Faculty of Sciences, BioISI - Biosystems & Integrative Sciences Institute, Lisboa, Portugal
| | - Rui S Soares
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Cheila Rocha
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Christian G Ramos
- University of Lisboa, Faculty of Sciences, BioISI - Biosystems & Integrative Sciences Institute, Lisboa, Portugal
| | - Rita Tendeiro
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Ana Serra-Caetano
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - José A Guerra-Assunção
- Bill Lyons Informatics Centre, UCL Cancer Institute, University College London, London, UK
| | - Mariana Santa-Marta
- Research Institute for Medicines (iMed ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Lisboa, Portugal
| | - João Gonçalves
- Research Institute for Medicines (iMed ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Lisboa, Portugal
| | - Margarida Gama-Carvalho
- University of Lisboa, Faculty of Sciences, BioISI - Biosystems & Integrative Sciences Institute, Lisboa, Portugal
| | - Ana E Sousa
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
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18
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Chen J, Zhuang Y, Zhang ZF, Wang S, Jin P, He C, Hu PC, Wang ZF, Li ZQ, Xia GM, Li G, Wang Y, Wan Q. Glycine confers neuroprotection through microRNA-301a/PTEN signaling. Mol Brain 2016; 9:59. [PMID: 27230112 PMCID: PMC4880874 DOI: 10.1186/s13041-016-0241-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 05/17/2016] [Indexed: 12/22/2022] Open
Abstract
Background Glycine is known to protect against neuronal death. However, the underlying mechanism remains to be elucidated. The microRNA-301a is involved in both biological and pathological processes. But it is not known whether microRNA-301a has a neuroprotective property. In this study, we aimed to determine whether glycine-induced neuroprotection requires microRNA-301a-dependent signaling. Results We provided the first evidence that glycine increased the expression of microRNA-301a in cultured rat cortical neurons and protected against cortical neuronal death through up-regulation of microRNA-301a after oxygen-glucose deprivation. MicroRNA-301a directly bound the predicted 3′UTR target sites of PTEN and reduced PTEN expression in cortical neurons. We revealed that PTEN down-regulation by microRNA-301a mediated glycine-induced neuroprotective effect following oxygen-glucose deprivation. Conclusions Our results suggest that 1) microRNA-301a is neuroprotective in oxygen-glucose deprivation-induced neuronal injury; 2) glycine is an upstream regulator of microRNA-301a; 3) glycine confers neuroprotection through microRNA-301a/PTEN signal pathway.
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Affiliation(s)
- Juan Chen
- Department of Physiology, School of Basic Medical Sciences, Medical Research Institute, Wuhan University School of Medicine, 185 Donghu Street, Wuhan, 430071, China.,Department of Neurology, the Central Hospital of Wuhan, Wuhan, 430060, China
| | - Yang Zhuang
- Department of Physiology, School of Basic Medical Sciences, Medical Research Institute, Wuhan University School of Medicine, 185 Donghu Street, Wuhan, 430071, China
| | - Zhi-Feng Zhang
- Department of Physiology, School of Basic Medical Sciences, Medical Research Institute, Wuhan University School of Medicine, 185 Donghu Street, Wuhan, 430071, China
| | - Shu Wang
- Department of Physiology, School of Basic Medical Sciences, Medical Research Institute, Wuhan University School of Medicine, 185 Donghu Street, Wuhan, 430071, China
| | - Ping Jin
- Department of Neurology, the Central Hospital of Wuhan, Wuhan, 430060, China
| | - Chunjiang He
- Department of Genetics, School of Basic Medical Sciences, Wuhan University School of Medicine, 185 Donghu Street, Wuhan, 430071, China
| | - Peng-Chao Hu
- Department of Physiology, School of Basic Medical Sciences, Medical Research Institute, Wuhan University School of Medicine, 185 Donghu Street, Wuhan, 430071, China
| | - Ze-Fen Wang
- Department of Physiology, School of Basic Medical Sciences, Medical Research Institute, Wuhan University School of Medicine, 185 Donghu Street, Wuhan, 430071, China
| | - Zhi-Qiang Li
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University School of Medicine, 169 Donghu Street, Wuhan, 430071, China
| | - Guang-Ming Xia
- Department of Neurology, the Central Hospital of Huanggang, Huanggang, 438000, China
| | - Gang Li
- Department of Neurology, the Central Hospital of Huanggang, Huanggang, 438000, China
| | - Yuan Wang
- Department of Physiology, School of Basic Medical Sciences, Medical Research Institute, Wuhan University School of Medicine, 185 Donghu Street, Wuhan, 430071, China
| | - Qi Wan
- Department of Physiology, School of Basic Medical Sciences, Medical Research Institute, Wuhan University School of Medicine, 185 Donghu Street, Wuhan, 430071, China. .,Department of Neurosurgery, Zhongnan Hospital, Wuhan University School of Medicine, 169 Donghu Street, Wuhan, 430071, China.
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