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Gene-therapy

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https://www.readbyqxmd.com/read/29150946/lncrna-tcons_00034812-in-cell-proliferation-and-apoptosis-of-pulmonary-artery-smooth-muscle-cells-and-its-mechanism
#1
Yun Liu, Zengxian Sun, Jinquan Zhu, Bingxin Xiao, Jie Dong, Xiaomin Li
Long noncoding RNAs (lncRNAs) have been discovered to be playing important role in various biological processes. However, the contribution of lncRNAs to pulmonary artery hypertension (PAH) remains largely unknown. Pulmonary vascular remodeling is an important pathological feature of PAH, leading to increased vascular resistance and reduced compliance. Here, we investigated the biological role of lncRNAs in PAH. Differences in the lncRNAs and mRNAs between hypoxia PAH rats and normoxia rats were screened using microarray analysis...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150718/re-educating-immunity-in-respiratory-allergies-the-potential-for-hematopoietic-stem-cell-mediated-gene-therapy
#2
REVIEW
Jeremy F Brooks, Janet M Davies, James W Wells, Raymond J Steptoe
Respiratory allergies represent a significant disease burden worldwide affecting up to 300 million people globally. Medication and avoidance of known triggers do not address the underlying pathology. Traditional immunotherapies for allergy aim to reinstate immune homeostasis but require years of treatment and have poor long-term efficacy. Novel approaches, such as gene-engineered hematopoietic stem cell transplantation, induce profound antigen-specific tolerance in autoimmunity. Recent evidence shows this approach may also have therapeutic utility for allergy...
November 17, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/29150659/ectopic-foxp3-expression-preserves-primitive-features-of-human-hematopoietic-stem-cells-while-impairing-functional-t-cell-differentiation
#3
F R Santoni de Sio, L Passerini, M M Valente, F Russo, L Naldini, M G Roncarolo, R Bacchetta
FOXP3 is the transcription factor ruling regulatory T cell function and maintenance of peripheral immune tolerance, and mutations in its coding gene causes IPEX autoimmune syndrome. FOXP3 is also a cell-cycle inhibitor and onco-suppressor in different cell types. In this work, we investigate the effect of ectopic FOXP3 expression on HSC differentiation and we challenged this approach as a possible HSC-based gene therapy for IPEX. FOXP3-expressing HSC showed reduced proliferation ability and increased maintenance of primitive markers in vitro in both liquid and OP9-ΔL1 co-cultures...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29150266/interleukin-35-and-hepatocyte-growth-factor-as-a-novel-combined-immune-gene-therapy-for-multiple-sclerosis-disease
#4
Samira Moghadam, Maryam Erfanmanesh, Abdolreza Esmaeilzadeh
An autoimmune demyelination disease of the Central Nervous System, Multiple Sclerosis, is a chronic inflammation which mostly involves young adults. Suffering people face functional loss with a severe pain. Most current MS treatments are focused on the immune response suppression. Approved drugs suppress the inflammatory process, but factually, there is no definite cure for Multiple Sclerosis. Recently developed knowledge has demonstrated that gene and cell therapy as a hopeful approach in tissue regeneration...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29150004/dynamics-of-indel-profiles-induced-by-various-crispr-cas9-delivery-methods
#5
Michael Kosicki, Sandeep S Rajan, Flaminia C Lorenzetti, Hans H Wandall, Yoshiki Narimatsu, Emmanouil Metzakopian, Eric P Bennett
The introduction of CRISPR/Cas9 gene editing in mammalian cells is a scientific breakthrough, which has greatly affected basic research and gene therapy. The simplicity and general access to CRISPR/Cas9 reagents has in an unprecedented manner "democratized" gene targeting in biomedical research, enabling genetic engineering of any gene in any cell, tissue, organ, and organism. The ability for fast, precise, and efficient profiling of the double-stranded break induced insertions and deletions (indels), mediated by any of the available programmable nucleases, is paramount to any given gene targeting approach...
2017: Progress in Molecular Biology and Translational Science
https://www.readbyqxmd.com/read/29150002/gene-editing-and-crispr-therapeutics-strategies-taught-by-cell-and-gene-therapy
#6
Juan C Ramirez
A few years ago, we assisted in the demonstration for the first time of the revolutionary idea of a type of adaptive-immune system in the bacteria kingdom. This system, named CRISPR, and variants engineered in the lab, have been demonstrated as functional with extremely high frequency and fidelity in almost all eukaryotic cells studied to date. The capabilities of this RNA-guided nuclease have added to the interest that was announced with the advent of previous technologies for genome editing tools, such as ZFN and TALEN...
2017: Progress in Molecular Biology and Translational Science
https://www.readbyqxmd.com/read/29149824/gene-therapy-and-retinal-diseases
#7
Claudio Campa, Carla Enrica Gallenga, Elena Bolletta, Paolo Perri
Background Gene therapy represents the therapeutic delivery of nucleic acid polymers into a patient's cells with the aim of treating an underlying disease. Over the past 2 decades this new therapy has made substantial progress owing to better understanding of the pathobiologic basis of various diseases coupled with growth of gene transfer biotechnologies. The eye, in particular, represents a suitable target for such therapy due to the immune privilege provided by the blood-ocular barrier, the ability to directly visualize, access and locally treat the cells and the minimal amount of vector needed given the size of this organ...
November 16, 2017: Current Gene Therapy
https://www.readbyqxmd.com/read/29149103/human-hepatocyte-transplantation-for-liver-disease-current-status-and-future-perspectives
#8
REVIEW
Valeria Iansante, Ragai R Mitry, Céline Filippi, Emer Fitzpatrick, Anil Dhawan
Liver transplantation is the accepted treatment for patients with acute liver failure and liver-based metabolic disorders. However, donor organ shortage and lifelong need for immunosuppression are the main limitations to liver transplantation. In addition, loss of the native liver as target organ for future gene therapy for metabolic disorders limits the futuristic treatment options, resulting in the need for alternative therapeutic strategies. A potential alternative to liver transplantation is allogeneic hepatocyte transplantation...
November 14, 2017: Pediatric Research
https://www.readbyqxmd.com/read/29148802/ppb-peptide-mediated-sirna-loaded-stable-nucleic-acid-lipid-nanoparticles-on-targeting-therapy-of-hepatic-fibrosis
#9
Zongxiang Jia, Yan Gong, Yufang Pi, Xueying Liu, Lipeng Gao, Liqing Kang, Jing Wang, Fan Yang, Jie Tang, Weiyue Lu, Qinghua Li, Wei Zhang, Zhiqiang Yan, Lei Yu
Hepatic fibrosis is a necessary process in the development of liver diseases such as hepatic cirrhosis and its complications, which has become a serious threat to human health. Currently, antifibrotic drug treatment is ineffective, and one of the reasons should be the lack of liver targeting ability. In this report, polypeptide pPB modified stable nucleic acid lipid nanoparticles (pPB-SNALP) were prepared to selectively deliver siRNAs against heat shock protein 47 (HSP47) to liver for targeted therapy of hepatic fibrosis...
November 17, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29148236/emerging-roles-of-er-stress-in-the-aetiology-and-pathogenesis-of-alzheimer-s-disease
#10
REVIEW
Yannis Gerakis, Claudio Hetz
Alzheimer's disease (AD) is a progressive neurodegenerative disease characterized by synaptic dysfunction and accumulation of abnormal aggregates formed by amyloid-β peptides or phophorylated Tau proteins. Accumulating evidence suggests that alterations in the buffering capacity of the proteostasis network is a salient feature of AD. The endoplasmic reticulum (ER) is the main compartment involved in protein folding and secretion and is drastically affected in AD neurons. ER stress triggers the activation of the Unfolded Protein Response (UPR), a signal transduction pathway that enforces adaptive programs to recover homeostasis or trigger apoptosis of irreversibly damaged cells...
November 17, 2017: FEBS Journal
https://www.readbyqxmd.com/read/29145975/in-cancer-a-to-i-rna-editing-can-be-the-driver-the-passenger-or-the-mechanic
#11
Nabeel S Ganem, Noa Ben-Asher, Ayelet T Lamm
In recent years, A-to-I RNA modifications performed by the Adenosine Deaminase Acting on RNA (ADAR) protein family were found to be expressed at altered levels in multiple human malignancies. A-to-I RNA editing changes adenosine to inosine on double stranded RNA, thereby changing transcript sequence and structure. Although A-to-I RNA editing have the potential to change essential mRNA transcripts, affecting their corresponding protein structures, most of the human editing sites identified to date reside in non-coding repetitive transcripts such as Alu elements...
May 2017: Drug Resistance Updates: Reviews and Commentaries in Antimicrobial and Anticancer Chemotherapy
https://www.readbyqxmd.com/read/29144448/regeneration-of-the-entire-human-epidermis-using-transgenic-stem-cells
#12
Tobias Hirsch, Tobias Rothoeft, Norbert Teig, Johann W Bauer, Graziella Pellegrini, Laura De Rosa, Davide Scaglione, Julia Reichelt, Alfred Klausegger, Daniela Kneisz, Oriana Romano, Alessia Secone Seconetti, Roberta Contin, Elena Enzo, Irena Jurman, Sonia Carulli, Frank Jacobsen, Thomas Luecke, Marcus Lehnhardt, Meike Fischer, Maximilian Kueckelhaus, Daniela Quaglino, Michele Morgante, Silvio Bicciato, Sergio Bondanza, Michele De Luca
Junctional epidermolysis bullosa (JEB) is a severe and often lethal genetic disease caused by mutations in genes encoding the basement membrane component laminin-332. Surviving patients with JEB develop chronic wounds to the skin and mucosa, which impair their quality of life and lead to skin cancer. Here we show that autologous transgenic keratinocyte cultures regenerated an entire, fully functional epidermis on a seven-year-old child suffering from a devastating, life-threatening form of JEB. The proviral integration pattern was maintained in vivo and epidermal renewal did not cause any clonal selection...
November 16, 2017: Nature
https://www.readbyqxmd.com/read/29144165/gene-therapy-evidence-value-and-affordability-in-the-us-health-care-system
#13
Grace Hampson, Adrian Towse, Steven D Pearson, William B Dreitlein, Chris Henshall
AIMS: To explore the challenges presented by gene therapies, discuss potential solutions, and present policy recommendations. METHODS: A review of the literature and series of expert interviews were conducted and discussed at a Policy Forum convened by The Institute for Clinical and Economic Review (ICER). The Policy Forum was attended by independent experts and senior representatives from 20 payer organizations and life sciences companies. RESULTS: Three categories of challenges are identified: evidence generation, assessing value and affordability...
November 16, 2017: Journal of Comparative Effectiveness Research
https://www.readbyqxmd.com/read/29143813/ship1-but-not-an-aml-derived-ship1-mutant-suppresses-myeloid-leukemia-growth-in-a-xenotransplantation-mouse-model
#14
M Täger, S Horn, E Latuske, P Ehm, M Schaks, M Nalaskowski, B Fehse, W Fiedler, C Stocking, J Wellbrock, M Jücker
Constitutive activation of the PI3K/AKT signaling pathway is found in ~50-70% of AML patients. The SH2-containing inositol 5-phosphatase 1 (SHIP1) is a negative regulator of PI3K/AKT signaling in hematopoietic cells. SHIP1 knockout mice develop a myeloproliferative syndrome and concomitant deletion of SHIP1 and the tumor suppressor PTEN leads to the development of lethal B-cell lymphomas. In the study presented here, we investigated the role of SHIP1 as a tumor suppressor in myeloid leukemia cells in an in vivo xenograft transplantation model...
November 16, 2017: Gene Therapy
https://www.readbyqxmd.com/read/29141633/genome-modification-of-cxcr4-by-staphylococcus-aureus-cas9-renders-cells-resistance-to-hiv-1-infection
#15
Qiankun Wang, Shuliang Chen, Qiaoqiao Xiao, Zhepeng Liu, Shuai Liu, Panpan Hou, Li Zhou, Wei Hou, Wenzhe Ho, Chunmei Li, Li Wu, Deyin Guo
BACKGROUND: The CRISPR/Cas9 system has been widely used for genome editing in mammalian cells. CXCR4 is a co-receptor for human immunodeficiency virus type 1 (HIV-1) entry, and loss of CXCR4 function can protect cells from CXCR4 (X4)-tropic HIV-1 infection, making CXCR4 an important target for HIV-1 gene therapy. However, the large size of the CRISPR/SpCas9 system presents an obstacle to its efficient delivery into primary CD4(+) T cells. Recently, a small Staphylococcus aureus Cas9 (SaCas9) has been developed as a genome editing tool can address this question...
November 15, 2017: Retrovirology
https://www.readbyqxmd.com/read/29138556/photoactivatable-rnai-for-cancer-gene-therapy-triggered-by-near-infrared-irradiated-single-walled-carbon-nanotubes
#16
Xueling Ren, Jing Lin, Xuefang Wang, Xiao Liu, Erjuan Meng, Rui Zhang, Yanxiao Sang, Zhenzhong Zhang
The efficacy of RNA interference (RNAi)-based cancer gene therapy is limited by its unexpected side effects, thus necessitating a strategy to precisely trigger conditional gene knockdown. In this study, we engineered a novel photoactivatable RNAi system, named as polyetherimide-modified single-wall carbon nanotube (PEI-SWNT)/pHSP-shT, that enables optogenetic control of targeted gene suppression in tumor cells. PEI-SWNT/pHSP-shT comprises a stimulus-responsive nanocarrier (PEI-SWNT), and an Hsp70B'-promoter-driven RNAi vector (pHSP-shT)...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29138047/antibacterial-effect-and-dna-delivery-using-a-combination-of-an-arsonium-containing-lipophosphoramide-with-an-n-heterocyclic-carbene-silver-complex-potential-benefits-for-cystic-fibrosis-lung-gene-therapy
#17
Angélique Mottais, Mathieu Berchel, Yann Sibiril, Véronique Laurent, Deborah Gill, Stephen Hyde, Paul-Alain Jaffrès, Tristan Montier, Tony Le Gall
Cystic Fibrosis (CF), the most common chronic genetic disorder among the Caucasian population, is a life-threatening disease mainly due to respiratory failures resulting from chronic infections and inflammation. Although research in the pharmacological field has recently made significant progress, gene therapy still remains a promising strategy to cure CF, especially because it should be applicable to any patient whatever the mutation profile. Until now, little attention has been paid to bacterial lung infections with regard to gene delivery to the airways; yet, this could greatly impact on the success of gene therapy...
November 11, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29137794/monitoring-the-effect-of-sonoporation-on-the-cells-using-electrochemical-approach
#18
Mohammad Ali Khayamian, Majid Baniassadi, Mohammad Abdolahad
Sonoporation is applied to enhance the permeability of the cell to bioactive materials by employing the acoustic cavitation of microbubbles. This phenomena would be helpful in molecular biology, delivery of large molecules into the cells and gene therapy. Many methods have been applied to monitor the biological effects and trace of sonoporation on the cells such as scanning/transmission electron microscopy, confocal imaging and flow cytometry. Here, we monitored the effect of sonoporation on the cells using electrochemical method with an integrated three electrode system...
March 2018: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/29137298/ing4-expressing-oncolytic-vaccinia-virus-promotes-anti-tumor-efficiency-and-synergizes-with-gemcitabine-in-pancreatic-cancer
#19
Yinfang Wu, Xiaozhou Mou, Shibing Wang, Xing-E Liu, Xiaodong Sun
With no effective treatments available for most pancreatic cancer patients, pancreatic cancer continues to be one of the most difficult malignancies to treat. Oncolytic virus mediated-gene therapy has exhibited ubiquitous antitumor potential. In this study, we constructed a novel oncolytic vaccinia virus harboring the inhibitor of growth family member 4 gene (VV-ING4) to investigate its therapeutic efficacy alone or in combination with gemcitabine against pancreatic cancer cells in vitro and in vivo. ING4 expression was determined via quantitative real-time polymerase chain reaction (qPCR) and western blot...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137236/the-nucleocytoplasmic-translocation-and-up-regulation-of-ing5-protein-in-breast-cancer-a-potential-target-for-gene-therapy
#20
Xiao-Qing Ding, Shuang Zhao, Lei Yang, Xin Zhao, Gui-Feng Zhao, Shu-Peng Zhao, Zhi-Jie Li, Hua-Chuan Zheng
Here, we found that ING5 overexpression resulted in a lower proliferation, reduced glucose metabolism, S arrest, decreased migration and invasion, apoptotic induction, fat accumulation, autophagy, senescence and mesenchymal-epithelial-transition of breast cancer cells. It also suppressed the tumor growth of breast cancer cells by inhibiting proliferation, inducing apoptosis and autophagy. ING5-mediated chemoresistance was positively linked to Akt and NF-κB activation, MRP1 and GST-π overexpression, and FBXW7 hypoexpression...
October 10, 2017: Oncotarget
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