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MicroRNA transplantation

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https://www.readbyqxmd.com/read/28624527/significantly-altered-expression-of-mir-511-3p-and-its-target-akt3-has-negative-prognostic-value-in-human-prostate-cancer
#1
Fan Zhang, Zhongjun Wu
PURPOSE: In this study, we assessed the expression and functions of microRNA-511-3p (miR-511-3p) in human prostate cancer (CaP). METHODS: Gene expressions of miR-511-3p in CaP cells and human CaP tumors were assessed by qPCR. In VCaP and PC3 cells, miR-511-3p was overexpressed by lentivirus. The functions of miR-511-3p upregulation in regulating in vitro cancer proliferation, migration and in vivo cancer growth were assessed by MTT, transwell and transplantation assays, respectively...
June 14, 2017: Biochimie
https://www.readbyqxmd.com/read/28619106/bone-mesenchymal-stem-cells-ameliorate-ischemia-reperfusion-induced-damage-in-renal-epithelial-cells-via-microrna-223
#2
Xiaopeng Yuan, Xiaoping Wang, Chuanbao Chen, Jian Zhou, Ming Han
BACKGROUND: Recent studies have indicated that microRNA-223 (miR-223) plays a role in the tissue-protective effect of mesenchymal stem cells (MSCs). NLR family-pyrin domain containing 3 (NLRP3) was reported to affect a renal ischemia/reperfusion (I/R) injury by exerting a direct effect on the renal tubular epithelium. Therefore, we investigated how miR-223 and NLRP3 might function in kidneys exposed to conditions of ischemia and subsequent reperfusion. METHODS: Hypoxia/reoxygenation (H/R) murine renal tubular epithelial cells (RTECs) were cocultured with either MSCs or hypoxia-pretreated MSCs (htMSCs), after which the RTECs were examined for their viability and evidence of apoptosis...
June 15, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28602220/inhibition-of-microrna-24-increases-liver-fibrosis-by-enhanced-menin-expression-in-mdr2-mice
#3
Chad Hall, Laurent Ehrlich, Fanyin Meng, Pietro Invernizzi, Francesca Bernuzzi, Terry C Lairmore, Gianfranco Alpini, Shannon Glaser
BACKGROUND: Liver transplantation remains the primary treatment for primary sclerosing cholangitis (PSC). Mdr2(-/-) mice provide a reliable in vivo model of PSC and develop characteristic biliary inflammation and fibrosis. We tested the hypothesis that the tumor suppressor protein menin is implicated in the progression of liver fibrosis and that menin expression can be regulated in the liver via microRNA-24 (miR-24). MATERIALS AND METHODS: Menin expression was measured in human PSC and Mdr2(-/-) mice...
May 11, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28596252/success-in-bone-marrow-failure-novel-therapeutic-directions-based-on-the-immune-environment-of-myelodysplastic-syndromes
#4
REVIEW
Alyssa H Cull, Michael J Rauh
Myelodysplastic syndromes (MDS) are clonal neoplasms of aging that are associated with BM failure, related cytopenias, fatigue, susceptibility to infections, bruising, bleeding, a shortened lifespan, and a propensity for leukemic transformation. Most frail, elderly patients are not candidates for curative allogeneic BM transplantations and instead receive expectant management, supportive blood transfusions, or empirical, nontargeted therapy. It has been known for some time that MDS arises in an abnormal BM immune environment; however, connections have only recently been established with recurring MDS-associated mutations...
June 8, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28586038/mir-1247-5p-functions-as-a-tumor-suppressor-in-human-hepatocellular-carcinoma-by-targeting-wnt3
#5
Yuankui Chu, Weining Fan, Wenwei Guo, Yixin Zhang, Lixin Wang, Le Guo, Xiangguo Duan, Jun Wei, Guangxian Xu
Increasing evidence suggests that aberrant expression of certain microRNAs (miRNAs) may participate in the genesis and progression of tumors. Several studies have indicated that miR-1247-5p plays different roles in various types of cancer cells. The effects of miR-1247-5p on human hepatocellular carcinoma (HCC) cells are elusive. In the present study, we investigated the effects of miR-1247-5p on the progression of HCC. The transcript of miR-1247-5p was markedly downregulated in clinical samples of patients with HCC and HCC cell lines, and ectopic overexpression of miR‑1247-5p markedly inhibited the proliferation and invasion of HepG2 cells, induced cell apoptosis in vitro, and suppressed the growth of transplanted tumors in vivo...
June 6, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28573106/no-functional-role-for-microrna-342-in-a-mouse-model-of-pancreatic-acinar-carcinoma
#6
James Dooley, Vasiliki Lagou, Emanuela Pasciuto, Michelle A Linterman, Haydn M Prosser, Uwe Himmelreich, Adrian Liston
The intronic microRNA (miR)-342 has been proposed as a potent tumor-suppressor gene. miR-342 is found to be downregulated or epigenetically silenced in multiple different tumor sites, and this loss of expression permits the upregulation of several key oncogenic pathways. In several different cell lines, lower miR-342 expression results in enhanced proliferation and metastasis potential, both in vitro and in xenogenic transplant conditions. Here, we sought to determine the function of miR-342 in an in vivo spontaneous cancer model, using the Ela1-TAg transgenic model of pancreatic acinar carcinoma...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28565839/mir-365-induces-hepatocellular-carcinoma-cell-apoptosis-through-targeting-bcl-2
#7
Mingfei Li, Yuan Yang, Yu Kuang, Xianfeng Gan, Wei Zeng, Yuping Liu, Hua Guan
Hepatocellular carcinoma (HCC) is currently ranked as the third leading cause of cancer-related mortality worldwide. microRNAs (miRs) serve important roles in the development and progression of HCC. miR-365 has been demonstrated to function as a tumor suppressor in several types of cancer, including HCC; however, the mechanisms by which miR-365 regulates HCC apoptosis remains to be elucidated. In the present study, reverse transcription-quantitative polymerase chain reaction was performed to determine miR-365 expression levels in HCC and normal liver (LO2) cells...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28556588/effects-of-dna-methylation-on-progression-to-interstitial-fibrosis-and-tubular-atrophy-in-renal-allograft-biopsies-a-multi-omics-approach
#8
Sai Vineela Bontha, Daniel G Maluf, Kellie J Archer, Catherine I Dumur, Mikhail Dozmorov, Anne King, Enver Akalin, Thomas F Mueller, Lorenzo Gallon, Valeria R Mas
Progressive fibrosis of the interstitium is the dominant final pathway in renal destruction in native and transplanted kidneys. Over time, the continuum of molecular events following immunological and non-immunological insults lead to interstitial fibrosis and tubular atrophy (IFTA) and culminate in kidney failure. We hypothesize that these insults trigger changes in DNA methylation (DNAm) patterns which in turn could exacerbate injury and slow down the regeneration processes, leading to fibrosis development and graft dysfunction...
May 28, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28545737/microrna-146a-governs-fibroblast-activation-and-joint-pathology-in-arthritis
#9
Victoria Saferding, Antonia Puchner, Eliana Goncalves-Alves, Melanie Hofmann, Michael Bonelli, Julia S Brunner, Emine Sahin, Birgit Niederreiter, Silvia Hayer, Hans P Kiener, Elisa Einwallner, Ramzi Nehmar, Raphael Carapito, Philippe Georgel, Marije I Koenders, Mark Boldin, Gernot Schabbauer, Mariola Kurowska-Stolarska, Günter Steiner, Josef S Smolen, Kurt Redlich, Stephan Blüml
Synovial fibroblasts are key cells orchestrating the inflammatory response in arthritis. Here we demonstrate that loss of miR-146a, a key epigenetic regulator of the innate immune response, leads to increased joint destruction in a TNF-driven model of arthritis by specifically regulating the behavior of synovial fibroblasts. Absence of miR-146a in synovial fibroblasts display a highly deregulated gene expression pattern and enhanced proliferation in vitro and in vivo. Deficiency of miR-146a induces deregulation of tumor necrosis factor (TNF) receptor associated factor 6 (TRAF6) in synovial fibroblasts, leading to increased proliferation...
May 22, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28545181/hepatocellular-carcinoma-a-comprehensive-review-of-biomarkers-clinical-aspects-and-therapy
#10
Nathalia Martines Tunissiolli, Márcia Maria Urbanin Castanhole-Nunes, Patrícia Matos Biselli-Chicote, Érika Cristina Pavarino, Renato Ferreira da Silva, Rita de Cássia Martins Alves da Silva, Eny Maria Goloni-Bertollo
Hepatocellular carcinoma (HCC) is a cause of several deaths related to cancer worldwidely. In early stage, curative treatments such as surgical resection, liver transplant and local ablation can improve the patient ´s survival. However, the disease is detected in advanced stage; moreover some available therapies are restricted to palliative care and local treatment. Early detections of HCC and adequate therapy are crucial to increase survival as well as to improve the patient´s quality of life. Therefore, researchers have been investigating molecular biomarkers with high sensibility and reliability as Golgi 73 protein (GP73), Glypican-3 (GPC3), Osteopontin (OPN), microRNAs and others...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28545027/mir-486-5p-negatively-regulates-oncogenic-nek2-in-hepatocellular-carcinoma
#11
Shun-Jun Fu, Jian Chen, Fei Ji, Wei-Qiang Ju, Qiang Zhao, Mao-Gen Chen, Zhi-Yong Guo, Lin-Wei Wu, Yi Ma, Dong-Ping Wang, Xiao-Feng Zhu, Xiao-Shun He
NEK2 is a member of the NIMA-related family of serine/threonine centrosomal kinases. We analyzed the relationship between differential expression of NEK2 and hepatocellular carcinoma (HCC) patient outcomes after liver transplants. We also studied the microRNAs that affect NEK2 expression. Analysis of multiple microarrays in the Oncomine database revealed that NEK2 expression was higher in HCC tissues than adjacent normal liver tissues. High NEK2 expression correlated with tumor size, pathological grade and macro- and microvascular invasion...
May 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28540143/association-between-coronary-artery-disease-and-microrna-literature-review-and-clinical-perspective
#12
Rehan Malik, Raja S Mushtaque, Usman A Siddiqui, Adnan Younus, Muhammad A Aziz, Choudhry Humayun, Kanaan Mansoor, Muhammad A Latif, Salman Waheed, Salman Assad, Idrees Khan, Syed M Bukhari, Daniel DelCampo, Ali Adus, Swetha Gannarapu
BACKGROUND: Until recently, circulating micro-RNAs (miRNAs) have attracted major interest as novel biomarkers for the early diagnosis of coronary artery disease (CAD). This review article summarizes the available evidence on the correlation of micro-RNAs with both the clinical and subclinical coronary artery disease and highlights the necessity for exploring miRNAs as a potential diagnostic and prognostic biomarker of early CAD in an adult population. METHODS: A systematic literature analysis and retrieval online systems Public/Publisher MEDLINE/ Excerpta Medica Database /Medical Literature Analysis and Retrieval System Online,(PUBMED/EMBASE/MEDLINE) search were conducted for relevant information...
April 23, 2017: Curēus
https://www.readbyqxmd.com/read/28540063/microrna-122-ameliorates-corneal-allograft-rejection-through-the-downregulation-of-its-target-cpeb1
#13
Ting Wang, Fengjie Li, Wenwen Geng, Qingguo Ruan, Weiyun Shi
Transplant rejection is a major cause of corneal transplantation failure. MicroRNAs (miRNAs) are a family of small RNAs that regulates gene expression in a sequence-specific manner. miRNAs have recently been shown to have important roles in human organ transplantation, but reports of miRNAs directly associated with corneal transplantation rejection remain limited. To investigate the role of miRNAs during corneal allograft rejection, we established a mouse penetrating keratoplasty model and used microarrays to screen for differentially expressed miRNAs...
2017: Cell Death Discovery
https://www.readbyqxmd.com/read/28524176/lentivirus-mediated-microrna-124-gene-modified-bone-marrow-mesenchymal-stem-cell-transplantation-promotes-the-repair-of-spinal-cord-injury-in-rats
#14
Jia-Lin Song, Wei Zheng, Wei Chen, Yun Qian, Yuan-Ming Ouyang, Cun-Yi Fan
Our study aims to explore the effects of lentivirus-mediated microRNA-124 (miR-124) gene-modified bone marrow mesenchymal stem cell (BMSC) transplantation on the repair of spinal cord injury (SCI) in rats. BMSCs were isolated from the bone marrow of rats. The target gene miR-124 was identified using a luciferase-reporter gene assay. Seventy-two rats were selected for construction of the SCI model, and the rats were randomly divided into the blank group, sham group, SCI group, negative control (NC) group, overexpressed miR-124 group and si-PDXK group...
May 19, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28518114/preparation-and-in-vitro-characterization-of-magnetized-mir-modified-endothelial-cells
#15
Natalia Voronina, Heiko Lemcke, Frank Wiekhorst, Jens-Peter Kühn, Markus Frank, Gustav Steinhoff, Robert David
To date, the available surgical and pharmacological treatments for cardiovascular diseases (CVD) are limited and often palliative. At the same time, gene and cell therapies are highly promising alternative approaches for CVD treatment. However, the broad clinical application of gene therapy is greatly limited by the lack of suitable gene delivery systems. The development of appropriate gene delivery vectors can provide a solution to current challenges in cell therapy. In particular, existing drawbacks, such as limited efficiency and low cell retention in the injured organ, could be overcome by appropriate cell engineering (i...
May 2, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28499275/effects-of-microrna-126-on-cell-proliferation-apoptosis-and-tumor-angiogenesis-via-the-down-regulating-erk-signaling-pathway-by-targeting-egfl7-in-hepatocellular-carcinoma
#16
Cheng Gong, Jing Fang, Guang Li, Han-Han Liu, Zhi-Su Liu
This study intends to explore the effects of microRNA-126 (miR-126) on cell proliferation, apoptosis, and tumor angiogenesis in hepatocellular carcinoma (HCC) by regulating epidermal growth factor-like domain 7 (EGFL7) through extracellular signal-regulated kinase (ERK) signaling. HCC tissues and adjacent normal tissues were obtained from 184 HCC patients. HCC cells were separately transfected with recombinant plasmids. Western blotting and qRT-PCR were applied to detect miR-126 and EGFL7, ERK, Fas/FasL, Bcl-2, Caspase mRNA and protein levels...
April 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28494714/is-the-hepatic-factor-a-mirna-that-maintains-the-integrity-of-pulmonary-microvasculature-by-inhibiting-the-vascular-endothelial-growth-factor
#17
Joseph John Vettukattil
The "hepatic factor," a molecule or group of molecules present in the hepatic venous blood, essential for the prevention of the development of pulmonary arteriovenous malformations (PAVMs) and right-to-left shunting has been a conceptual enigma in the understanding of many related conditions. Patients with various forms of liver diseases including acute hepatic failure, and others with normal hepatic function like hereditary hemorrhagic telangiectasia (HHT), inflammatory and parasitic disorders, cardiogenic hepatopulmonary syndrome (cHPS) and skin disorders like Dyskeratosis congenita are all known to cause PAVMs...
May 9, 2017: Current Cardiology Reviews
https://www.readbyqxmd.com/read/28487522/hematopoietic-deficiency-of-mir-223-attenuates-thrombosis-in-response-to-photochemical-injury-in-mice
#18
Hui Wang, Qian Wang, Kyle Kleiman, Chiao Guo, Daniel T Eitzman
Some studies have shown that levels of MicroRNA (miR)-223 derived from platelets in the plasma are reduced following inhibition of platelet function, while others have shown a correlation between low plasma miR-223 and high on-treatment platelet reactivity. The present study seeks to investigate the role of miR-223 in arterial thrombosis. A model of photochemical-induced carotid thrombosis was applied to miR-223 deficient mice and littermate (WT) controls. Mice deficient in miR-223 exhibited significantly prolonged times to occlusive thrombosis compared to WT mice indicating a protective effect of miR-223 deficiency...
May 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28485720/herpesvirus-micrornas-for-use-in-gene-therapy-immune-evasion-strategies
#19
REVIEW
S T F Bots, R C Hoeben
Transplantation of allogeneic cells as well as of genetically corrected autologous cells are potent approaches to restore cellular functions in patients suffering from genetic diseases. The recipient's immune responses against non-self-antigens may compromise the survival of the grafted cells. Recipients of the graft may therefore require life-long treatment with immunosuppressive drugs. An alternative approach to reduce graft rejection could involve the use of immune-evasion molecules. Expression of such molecules in cells of the graft may subvert recognition by the host's immune system...
May 9, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28484267/microrna-146a-reduces-mhc-ii-expression-via-targeting-jak-stat-signaling-in-dendritic-cells-after-stem-cell-transplantation
#20
N Stickel, K Hanke, D Marschner, G Prinz, M Köhler, W Melchinger, D Pfeifer, A Schmitt-Graeff, T Brummer, A Heine, P Brossart, D Wolf, N von Bubnoff, J Finke, J Duyster, J Ferrara, U Salzer, R Zeiser
Acute Graft-versus-host disease (GVHD) is a major immunological complication after allogeneic hematopoietic cell transplantation and a better understanding of the molecular regulation of the disease could help to develop novel targeted therapies. Here we found that a G/C polymorphism within the human microRNA-146a (miR-146a) gene of transplant-recipients, which causes reduced miR-146a levels, was strongly associated with the risk of developing severe acute GVHD (n=289). In mice, deficiency of miR-146a in the hematopoietic system or transfer of recipient-type miR-146a(-/-) dendritic cells (DCs) enhanced GVHD, while miR-146a mimic-transfected-DCs ameliorated disease...
May 9, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
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