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https://www.readbyqxmd.com/read/27903272/inhibition-of-bromodomain-and-extra-terminal-bet-proteins-increases-nkg2d-ligand-mica-expression-and-sensitivity-to-nk-cell-mediated-cytotoxicity-in-multiple-myeloma-cells-role-of-cmyc-irf4-mir-125b-interplay
#1
Maria Pia Abruzzese, Maria Teresa Bilotta, Cinzia Fionda, Alessandra Zingoni, Alessandra Soriani, Elisabetta Vulpis, Cristiana Borrelli, Beatrice Zitti, Maria Teresa Petrucci, Maria Rosaria Ricciardi, Rosa Molfetta, Rossella Paolini, Angela Santoni, Marco Cippitelli
BACKGROUND: Anti-cancer immune responses may contribute to the control of tumors after conventional chemotherapy, and different observations have indicated that chemotherapeutic agents can induce immune responses resulting in cancer cell death and immune-stimulatory side effects. Increasing experimental and clinical evidence highlight the importance of natural killer (NK) cells in immune responses toward multiple myeloma (MM), and combination therapies able to enhance the activity of NK cells against MM are showing promise in treating this hematologic cancer...
December 1, 2016: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/27900536/t%C3%AE-4-overexpression-based-on-the-piggybac-transposon-system-in-cashmere-goats-alters-hair-fiber-characteristics
#2
Bingbo Shi, Qiang Ding, Xiaolin He, Haijing Zhu, Yiyuan Niu, Bei Cai, Jiao Cai, Anming Lei, Danju Kang, Hailong Yan, Baohua Ma, Xiaolong Wang, Lei Qu, Yulin Chen
Increasing cashmere yield is one of the vital aims of cashmere goats breeding. Compared to traditional breeding methods, transgenic technology is more efficient and the piggyBac (PB) transposon system has been widely applied to generate transgenic animals. For the present study, donor fibroblasts were stably transfected via a PB donor vector containing the coding sequence of cashmere goat thymosin beta-4 (Tβ4) and driven by a hair follicle-specific promoter, the keratin-associated protein 6.1 (KAP6.1) promoter...
November 29, 2016: Transgenic Research
https://www.readbyqxmd.com/read/27895746/rnai-mediated-gene-silencing-of-vascular-endothelial-growth-factor-c-suppresses-growth-and-induces-apoptosis-in-mouse-breast-cancer-in-vitro-and-in-vivo
#3
Yong-Chao Liu, Wen-Hui Ma, Yin-Lin Ge, Mei-Lan Xue, Zheng Zhang, Jin-Yu Zhang, Lin Hou, Run-Hong Mu
Vascular endothelial cell growth factor (VEGF)-C promotes tumorigenesis by allowing lymph node metastasis and lymphangiogenesis, among other actions. RNA interference (RNAi) is a novel technique for suppressing target gene expression and may increase the effectiveness of cancer treatments. The present study assessed the influence of VEGF-C RNAi on the apoptosis and proliferation of mouse breast cancer cells in vitro and in vivo. A total of three pairs of small interfering RNA (siRNA) targeting mouse VEGF-C were designed and synthesized prior to transfection into 4T1 cells via a liposomal approach...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27895736/effect-of-silencing-satb1-on-proliferation-invasion-and-apoptosis-of-a549-human-lung-adenocarcinoma-cells
#4
Bo Huang, Hongli Zhou, Siwang Wang, Xian Ping Lang, Xiaodong Wang
The present study aimed to explore the clinical characteristics of special adenine-thymine-rich sequence-binding protein 1 (SATB1) in lung adenocarcinoma and its role in the proliferation, invasion, migration and apoptosis of the lung adenocarcinoma cell line A549. The expression of SATB1 was first studied in tumor tissues of lung adenocarcinoma and adjacent non-tumor tissues. The siRNA green fluorescent protein expression vector of SATB1 was constructed and transfected into the lung adenocarcinoma cell line A549, then a fluorescence microscope was used to study the transfection efficiency...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27892533/small-sized-stable-lipid-nanoparticle-for-the-efficient-delivery-of-sirna-to-human-immune-cell-lines
#5
Takashi Nakamura, Moeka Kuroi, Yuki Fujiwara, Shota Warashina, Yusuke Sato, Hideyoshi Harashima
Gene silencing by small interfering RNA (siRNA) is useful for analyzing the functions of human immune cells. However, the transfection of siRNA to human immune cells is difficult. Here, we used a multifunctional envelope-type nanodevice (MEND) containing YSK12-C4 (YSK12-MEND) to efficiently introduce siRNA to human immune cell lines, Jurkat, THP-1, KG-1 and NK92. The YSK12-MEND was transfected to human immune cell lines at a siRNA dose range of 1-30 nM, resulting that maximum gene silencing efficiencies at the mRNA level in Jurkat, THP-1, KG-1 and NK92 were 96%, 96%, 91% and 75%, respectively...
November 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27881651/alternative-polyadenylation-of-human-bocavirus-at-its-3-end-is-regulated-by-multiple-elements-and-affects-capsid-expression
#6
Sujuan Hao, Junmei Zhang, Zhen Chen, Huanzhou Xu, Hanzhong Wang, Wuxiang Guan
: Alternative processing of human bocavirus (HBoV) P5 promoter-transcribed RNA is critical for generating the structural and nonstructural protein-encoding mRNA transcripts. The regulatory mechanism by which HBoV RNA transcripts are polyadenylated at proximal [(pA)p] or distal [(pA)d] polyadenylation sites is yet unclear. We constructed a recombinant HBoV infectious clone to study the alternative polyadenylation regulation of HBoV. Surprisingly, in addition to the reported distal polyadenylation site (pA)d, a novel distal polyadenylation site (pA)d2 which is located in the right end hairpin (REH), was identified during infectious clone transfection or recombinant virus infection...
November 23, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27881406/enrichment-of-selective-mirnas-in-exosomes-and-delivery-of-exosomal-mirnas-in-vitro-and-in-vivo
#7
Duo Zhang, Heedoo Lee, Ziwen Zhu, Jasleen K Minhas, Yang Jin
Exosomes are nano vesicles secreted by cells, and contain various molecules including protein, lipid and DNA/RNA. They are crucial mediators of the intercellular communication and serve as promising vehicles for drug delivery and gene therapy. Recently, accumulating evidence suggest that microRNAs (miRNAs) may serve as new and potentially powerful targets for therapeutic interventions against various human diseases. However, steadily and effectively delivering miRNA mimics or inhibitors to target cells remains a major obstacle...
November 23, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27878298/trail-overexpression-co-regulated-by-egr1-and-hre-enhances-radiosensitivity-of-hypoxic-a549-cells-depending-on-its-apoptosis-inducing-role
#8
Yan-Ming Yang, Fang Fang, Xin Li, Lei Yu, Zhi-Cheng Wang
Ionizing radiation can upregulate the expression levels of TRAIL and enhance tumor cell apoptosis. While Early growth response 1 (Egr1) gene promoter has radiation inducible characteristics, the expression for exogenous gene controlled by Egr1 promoter could be enhanced by ionizing radiation, but its efficiency is limited by tissue hypoxia. Hypoxia response elements (HREs) are important hypoxic response regulatory sequences and sensitivity enhancers. Therefore, we chose TRAIL as the gene radiotherapy to observe whether it is regulated by Egr1 and HER and its effects on A549 cells and its mechanism...
November 23, 2016: Oncology Reports
https://www.readbyqxmd.com/read/27872706/alkyl-cross-linked-low-molecular-weight-polypropyleneimine-dendrimers-as-efficient-gene-delivery-vectors
#9
Faezeh Moghadam Ariaee, Maryam Hashemi, Sara Amel Farzad, Khalil Abnous, Mohammad Ramezani
OBJECTIVES: In recent years, polypropyleneimine (PPI) dendrimers have attracted great interest as non-viral gene delivery systems because of their attractive features including highly branched architecture with number of reactive end groups. However, without being structurally modified, they are not efficient gene carriers. In the present study, generation 2 and 3 (G2 and G3) of PPI dendrimers were conjugated with alkylcarboxylate groups as linker to enhance the transfection efficiency while maintaining their low cell toxicity...
October 2016: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/27868312/effect-of-chicken-leptin-recptor-short-hairpin-rna-on-expression-of-jak2-stat3-socs3-and-cpt1-genes-in-chicken-preadipocytes
#10
Qian Ban, Wenqiao Hui, Fei Cheng, Dahai Liu, Xiaojun Liu
In this study, we detect depressive effect on leptin receptor (LEPR) by LEPR-specific short hairpin RNA (shRNA) expression plasmids in chicken preadipocytes, and effect on messenger RNA (mRNA) expression levels of genes related to signal transduction, including JAK2, STAT3, SOCS3 as well as CPT1, which is associated with fatty acid metabolism. shRNA expression vectors targeting LEPR were constructed and transfected into chicken preadipocytes. The transfection efficiency was evaluated by fluorescence microscopy...
November 21, 2016: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/27863386/prognostic-and-diagnostic-potential-of-isocitrate-dehydrogenase-1-in-esophageal-squamous-cell-carcinoma
#11
Xuan Chen, Qingbao Li, Cong Wang, Wenzhe Xu, Lihui Han, Yuan Liu, Bowen Liu, Shanghui Guan, Bingxu Tan, Jianbo Wang, Nana Wang, Qingxu Song, Yibin Jia, Jianzhen Wang, Linli Zhao, Yufeng Cheng
We aimed to investigate the pattern of expression and clinical significance of isocitrate dehydrogenase 1(IDH1) in esophageal squamous cell carcinoma (ESCC). The IDH1 expression was determined by quantitative real-time polymerase chain reaction, immunohistochemistry, and Western blot analysis using 38 pairs of frozen tissues. Enzyme-linked immunosorbent assay was employed to measure 67 pairs of serum samples from patients and their controls to evaluate its diagnostic value. Immunohistochemistry analysis of 111 formalin-fixed paraffin embedded tissue samples was conducted for explaining its prognostic value...
November 15, 2016: Oncotarget
https://www.readbyqxmd.com/read/27855370/cd47-is-a-potential-target-for-the-treatment-of-laryngeal-squamous-cell-carcinoma
#12
ChunPing Yang, ShuFeng Gao, HaiZhen Zhang, Lian Xu, JianGuo Liu, Meiqun Wang, ShaoRong Zhang
BACKGROUND/AIMS: This study aims to investigate the effect of CD47 on the development of laryngeal squamous cell carcinoma (LSCC) and the therapeutic potential of monoclonal antibody against CD47 and its ligand SIRPα in the treatment of LSCC. METHODS: We firstly detected the expressions of CD47 mRNA and protein in LSCC and para-carcinoma tissues, introduced the most efficient CD47siRNA sequence into LSCC cells by lentiviral transfection and employed three monoclonal antibodies to evaluate their anti-LSCC effects in vitro and in vivo...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27847224/tetraiodothyroacetic-acid-conjugated-polyethylenimine-for-integrin-receptor-mediated-delivery-of-the-plasmid-encoding-il-12-gene
#13
Fatemeh Sheikhsaran, Hossein Sadeghpour, Bahman Khalvati, Elaheh Entezar-Almahdi, Ali Dehshahri
Targeted delivery by polymer-based nanoparticles has been considered as an efficient approach to transfer genetic materials into cells. Considering the over expression of integrin αVβ3 receptor on tumor cells and the presence of the binding site for tetraiodothyroacetic acid (tetrac) on integrin receptor, we hypothesized that the conjugation of tetrac to polyethylenimine (PEI) might be an effective strategy for pDNA delivery into the cells over-expressing integrins on their surfaces. In order to test the hypothesis, tetrac conjugated PEI/plasmid DNA complexes were prepared and their ability in the delivery of plasmid encoding IL-12 gene was investigated...
November 5, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27846370/dissolving-microneedles-for-dna-vaccination-improving-functionality-via-polymer-characterisation-and-rala-complexation
#14
Grace Cole, Joanne McCaffrey, Ahlam A Ali, John W McBride, Cian M McCrudden, Eva M Vincente-Perez, Ryan F Donnelly, Helen O McCarthy
DNA vaccination holds the potential to treat or prevent nearly any immunogenic disease, including cancer. To date, these vaccines have demonstrated limited immunogenicity in vivo due to the absence of a suitable delivery system which can protect DNA from degradation and improve transfection efficiencies in vivo. Recently, microneedles have been described as a novel physical delivery technology to enhance DNA vaccine immunogenicity. Of these devices, dissolvable microneedles promise a safe, pain-free delivery system which may simultaneously improve DNA stability within a solid matrix and increase DNA delivery compared to solid arrays...
November 15, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27843576/micrornas-interfere-with-dna-methylation-in-rheumatoid-arthritis-synovial-fibroblasts
#15
Niharika Gaur, Emmanuel Karouzakis, Selene Glück, Edvardas Bagdonas, Astrid Jüngel, Beat A Michel, Renate E Gay, Steffen Gay, Mojca Frank-Bertoncelj, Michel Neidhart
BACKGROUND: The DNA of rheumatoid arthritis synovial fibroblasts (RASF) is globally hypomethylated; this contributes to an aggressive behaviour. In an attempt to remethylate these cells, we supplemented with methyl donors. We investigated the possible interference of microRNAs (miRs). MATERIAL AND METHODS: RASF were treated with L-methionine or betaine. Transcripts of de novo methyltransferases (DNMTs) and miRs were measured by real-time PCR, and a transcription PCR array was performed...
2016: RMD Open
https://www.readbyqxmd.com/read/27830536/virus-like-particles-derived-from-hiv-1-for-delivery-of-nuclear-proteins-improvement-of-production-and-activity-by-protein-engineering
#16
Marc-André Robert, Viktoria Lytvyn, Francis Deforet, Rénald Gilbert, Bruno Gaillet
Virus-like particles (VLPs) derived from retroviruses and lentiviruses can be used to deliver recombinant proteins without the fear of causing insertional mutagenesis to the host cell genome. In this study we evaluate the potential of an inducible lentiviral vector packaging cell line for VLP production. The Gag gene from HIV-1 was fused to a gene encoding a selected protein and it was transfected into the packaging cells. Three proteins served as model: the green fluorescent protein and two transcription factors-the cumate transactivator (cTA) of the inducible CR5 promoter and the human Krüppel-like factor 4 (KLF4)...
November 9, 2016: Molecular Biotechnology
https://www.readbyqxmd.com/read/27816620/a-gene-delivery-system-containing-nuclear-localization-signal-increased-nucleus-import-and-transfection-efficiency-with-the-assistance-of-rangap1
#17
Kang Chen, Lingling Guo, Jiulong Zhang, Qing Chen, Kuanglei Wang, Chenxi Li, Weinan Li, Mingxi Qiao, Xiuli Zhao, Haiyang Hu, Dawei Chen
In the present report, a degradable gene delivery system (PAMS/DNA/10NLS) containing nucleus location signal peptide (NLS) was prepared. The agarose gel electrophoresis, particle size and zeta potential of PAMS/DNA/10NLS were similar to those of PAMS/DNA, which proved that NLS did not affect the interaction between PAMS and DNA. PAMS/DNA/10NLS exhibited marked extracellular and intracellular degradation under acidic conditions. The degradation was believed to allow NLS to come into contact with importins easily, which was able to mediate the nucleus import...
November 2, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27813400/hydrothermal-reduction-of-polyethylenimine-and-polyethylene-glycol-dual-functionalized-nanographene-oxide-for-high-efficiency-gene-delivery
#18
Tan Li, Liping Wu, Jiang Zhang, Gaina Xi, Yilin Pang, Xiaoping Wang, Tongsheng Chen
In this study, a physiologically stable dual-polymer-functionalized reduced nanographene oxide (nrGO) conjugate (PEG-nrGO-PEI, RGPP) with high efficiency of gene delivery is successfully synthesized through mixing PEGylated nanographene oxide (PEG-nGO, GP) and polyethylenimine (PEI, 25 kDa) solution under 80 °C for 2 h. This hydrothermal reduction of GP during PEIylation promotes the nucleophilic reaction between the amino moieties of PEI and the epoxy groups (or carboxylic groups) in GP and then forms C-NH- groups (or NH-CO groups) to covalently connect PEI and GP, which makes the RGPP nanocomposite more stable in physiological environments and has superior gene transfection efficiency compared with the nonhydrothermally reduced PEG-nGO/PEI conjugate (GPP) obtained by mixing GP and PEI under 20 °C for 2 h...
November 4, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27810365/treatment-of-parkinson-s-disease-in-rats-by-nrf2-transfection-using-mri-guided-focused-ultrasound-delivery-of-nanomicrobubbles
#19
Ling Long, Xiaodong Cai, Ruomi Guo, Ping Wang, Lili Wu, Tinghui Yin, Siyuan Liao, Zhengqi Lu
Parkinson's disease (PD) is a very common neurological disorder. However, effective therapy is lacking. Although the blood-brain-barrier (BBB) protects the brain, it prevents the delivery of about 90% of drugs and nucleotides into the brain, thereby hindering the development of gene therapy for PD. Magnetic resonance imaging (MRI)-guided focused ultrasound delivery of microbubbles enhances the delivery of gene therapy vectors across the BBB and improves transfection efficiency. In the present study, we delivered nuclear factor E2-related factor 2 (Nrf2, NFE2L2) contained in nanomicrobubbles into the substantia nigra of PD rats by MRI-guided focused ultrasound, and we examined the effect of Nrf2 over-expression in this animal model of PD...
October 31, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27806760/-the-crosstalk-between-canonical-and-noncanonical-wnt-signaling-pathway-in-osteoblast-differentiation-of-periodontal-ligament-stem-cells-in-inflammatory-microenvironments
#20
N Liu, H G Shi, W Zhang, B Gu
Objective: To investigate the crosstalk between canonical Wnt/β-catenin and noncanonical Wnt/Ca(2+) pathway in osteoblast differentiation process of periodontal ligament stem cell (PDLSC) in inflammatory microenvironments. Methods: PDLSCs were obtained from human healthy individuals(H-PDLSC) and patients with periodontitis(P-PDLSC). The H/P-PDLSCs were transfected with β-catenin siRNA. Cell morphology was observed under fluorescent microscope and transfection efficiency was easured by Western blotting after transfection of PDLSC...
November 9, 2016: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
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