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https://www.readbyqxmd.com/read/28715399/integration-free-derivation-of-human-induced-pluripotent-stem-cells-using-laminin-521-matrix
#1
Elias Uhlin, Ana Marin Navarro, Harriet Rönnholm, Kelly Day, Malin Kele, Anna Falk
Xeno-free and fully defined conditions are key parameters for robust and reproducible generation of homogenous human induced pluripotent stem (hiPS) cells. Maintenance of hiPS cells on feeder cells or undefined matrices are susceptible to batch variances, pathogenic contamination and risk of immunogenicity. Utilizing the defined recombinant human laminin 521 (LN-521) matrix in combination with xeno-free and defined media formulations reduces variability and allows for the consistent generation of hiPS cells...
July 7, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28677537/generation-of-human-induced-pluripotent-stem-cells-from-urinary-cells-of-a-healthy-donor-using-a-non-integration-system
#2
Kyung-Ok Uhm, Eun Hee Jo, Gue Youn Go, So-Jung Kim, Hye Young Choi, Young Sam Im, Hye-Yeong Ha, Ji-Won Jung, Soo Kyung Koo
Urinary cells can be an ideal source for generating hiPSCs and progenitors, as they are easily accessible, non-invasive, and universally available. We generated human induced pluripotent stem cells (hiPSCs) from the urinary cells of a healthy donor using a Sendai virus-based gene delivery method. The generated hiPSC line, KSCBi001-A, has a normal karyotype (46,XY). The pluripotency and capacity of multilineage differentiation were characterized by comparison with those of a human embryonic stem cell line. This cell line is registered and available from National Stem Cell Bank, Korea National Institute of Health...
May 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28677532/establishment-of-an-induced-pluripotent-stem-cell-ipsc-line-from-a-9-year-old-male-with-autism-spectrum-disorder-asd
#3
Eszter Varga, Csilla Nemes, István Bock, Zsuzsanna Táncos, Sára Berzsenyi, György Lévay, Viktor Román, Julianna Kobolák, András Dinnyés
Peripheral blood mononuclear cells (PBMCs) were collected from a clinically characterized patient with autism spectrum disorder (ASD). The PMBCs were reprogrammed with the human OSKM transcription factors using the Sendai-virus delivery system. The pluripotency of transgene-free iPSCs was verified by immunocytochemistry for pluripotency markers and by spontaneous in vitro differentiation towards the 3 germ layers. Furthermore, the iPSC line showed normal karyotype. Our model might offer a good platform to study the pathomechanism of ASD, also for drug testing, early biomarker discovery and gene therapy studies...
May 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28677531/generation-of-a-human-induced-pluripotent-stem-cell-line-from-urinary-cells-of-a-healthy-donor-using-integration-free-sendai-virus-technology
#4
Bella Rossbach, Laura Hildebrand, Linda El-Ahmad, Harald Stachelscheid, Petra Reinke, Andreas Kurtz
We have generated a human induced pluripotent stem cell (iPSC) line derived from urinary cells of a 28year old healthy female donor. The cells were reprogrammed using a non-integrating viral vector and have shown full differentiation potential. Together with the iPSC line, the donor provided blood cells for the study of immunological effects of the iPSC line and its derivatives in autologous and allogeneic settings. The line is available and registered in the human pluripotent stem cell registry as BCRTi005-A...
May 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28677527/generation-of-human-induced-pluripotent-stem-cell-lines-from-human-dermal-fibroblasts-using-a-non-integration-system
#5
Kyung-Ok Uhm, So-Jung Kim, Eun Hee Jo, Gue Youn Go, Hye Young Choi, Young Sam Im, Hye-Yeong Ha, Jung-Hyun Kim, Soo Kyung Koo
We generated human induced pluripotent stem cells (hiPSCs) from dermal fibroblasts using a Sendai virus (SeV)-based gene delivery method. The generated hiPSC line, KSCBi002-A, has a normal karyotype (46,XY). The pluripotency and differentiation capacity were characterized by comparison with those of a human embryonic stem cell line. This cell line is registered and available from the National Stem Cell Bank, Korea National Institute of Health.
May 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28677526/generation-of-macaca-fascicularis-ips-cell-line-atci-mf1-from-adult-skin-fibroblasts-using-non-integrative-sendai-viruses
#6
Giulia Coppiello, Gloria Abizanda, Natalia Aguado, Elena Iglesias, Estibaliz Arellano-Viera, Juan R Rodriguez-Madoz, Xonia Carvajal-Vergara, Felipe Prosper, Xabier L Aranguren
We generated ATCi-MF1 induced pluripotent stem (iPS) cell line from Macaca fascicularis adult skin fibroblasts using non-integrative Sendai viruses carrying OCT3/4, KLF4, SOX2 and c-MYC. Once established, ATCi-MF1 cells present a normal karyotype, are Sendai virus-free and express pluripotency associated markers. Microsatellite markers analysis confirmed the origin of the iPS cells from the parental fibroblasts. Pluripotency was tested with the in vivo teratoma formation assay. ATCi-MF1 cell line may be a useful primate iPS cell model to test different experimental conditions where the use of human cells can imply ethical issues, as microinjection of pluripotent stem cells in pre-implantational embryos...
May 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28675011/-characterization-of-micrornas-profiles-of-induced-pluripotent-stem-cells-reprogrammed-from-human-dental-pulp-stem-cells-and-stem-cells-from-apical-papilla
#7
Tan Xiaobing, Dai Qingyuan
OBJECTIVE: To compare characterization of microRNAs (miRNAs) expression profiles of induced pluripotent stem cells (iPSCs) reprogrammed from human dental pulp stem cells (DPSCs) and stem cells from apical papilla (SCAP) and screen-specific microRNA. METHODS: Human DPSCs and SCAP were reprogrammed into iPSCs using a Sendai virus vector. Total RNA of human DPSCs-iPSCs and SCAP-iPSCs were extracted. miRNAs were labeled and hybridized. Slides were scanned, and images were imported into GenePix Pro 6...
June 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28666145/simple-and-effective-generation-of-transgene-free-induced-pluripotent-stem-cells-using-an-auto-erasable-sendai-virus-vector-responding-to-microrna-302
#8
Ken Nishimura, Manami Ohtaka, Hitomi Takada, Akira Kurisaki, Nhi Vo Kieu Tran, Yen Thi Hai Tran, Koji Hisatake, Masayuki Sano, Mahito Nakanishi
Transgene-free induced pluripotent stem cells (iPSCs) are valuable for both basic research and potential clinical applications. We previously reported that a replication-defective and persistent Sendai virus (SeVdp) vector harboring four reprogramming factors (SeVdp-iPS) can efficiently induce generation of transgene-free iPSCs. This vector can express all four factors stably and simultaneously without chromosomal integration and can be eliminated completely from reprogrammed cells by suppressing vector-derived RNA-dependent RNA polymerase...
June 20, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28659477/west-nile-virus-ns1-antagonizes-interferon-%C3%AE-production-by-targeting-rig-i-and-mda5
#9
Hong-Lei Zhang, Han-Qing Ye, Si-Qing Liu, Cheng-Lin Deng, Xiao-Dan Li, Pei-Yong Shi, Bo Zhang
West Nile virus (WNV) is a mosquito-borne flavivirus that causes epidemics of encephalitis and viscerotropic disease worldwide. This virus has spread rapidly and has posed significant a public health threat since the outbreak in New York City in 1999. The interferon (IFN)-mediated antiviral response represents an important component of virus-host interactions and plays an essential role in regulating viral replication. Previous studies have suggested that multifunctional non-structural proteins encoded by flaviviruses antagonize the host IFN response via various means in order to establish efficient viral replication...
June 28, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28636653/the-ebola-virus-vp35-protein-binds-viral-immunostimulatory-and-host-rnas-identified-through-deep-sequencing
#10
Kari A Dilley, Alexander A Voorhies, Priya Luthra, Vinita Puri, Timothy B Stockwell, Hernan Lorenzi, Christopher F Basler, Reed S Shabman
Ebola virus and Marburg virus are members of the Filovirdae family and causative agents of hemorrhagic fever with high fatality rates in humans. Filovirus virulence is partially attributed to the VP35 protein, a well-characterized inhibitor of the RIG-I-like receptor pathway that triggers the antiviral interferon (IFN) response. Prior work demonstrates the ability of VP35 to block potent RIG-I activators, such as Sendai virus (SeV), and this IFN-antagonist activity is directly correlated with its ability to bind RNA...
2017: PloS One
https://www.readbyqxmd.com/read/28631605/loss-of-sendai-virus-c-protein-leads-to-accumulation-of-rig-i-immunostimulatory-defective-interfering-rna
#11
Maria Teresa Sánchez-Aparicio, Dominique Garcin, Charles M Rice, Daniel Kolakofsky, Adolfo García-Sastre, Alina Baum
Retinoic acid inducible gene (RIG-I)-mediated innate immunity plays a pivotal role in defence against virus infections. Previously we have shown that Sendai virus (SeV) defective interfering (DI) RNA functions as an exclusive and potent RIG-I ligand in DI-RNA-rich SeV-Cantell infected cells. To further understand how RIG-I is activated during SeV infection, we used a different interferon (IFN)-inducing SeV strain, recombinant SeVΔC, which, in contrast to SeV-Cantell is believed to stimulate IFN production due to the lack of the SeV IFN antagonist protein C...
June 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28605636/a-sendai-virus-recombinant-vaccine-expressing-a-gene-for-truncated-human-metapneumovirus-hmpv-fusion-protein-protects-cotton-rats-from-hmpv-challenge
#12
Charles J Russell, Bart G Jones, Robert E Sealy, Sherri L Surman, John N Mason, Randall T Hayden, Ralph A Tripp, Toru Takimoto, Julia L Hurwitz
Human metapneumovirus (hMPV) infections pose a serious health risk to young children, particularly in cases of premature birth. No licensed vaccine exists and there is no standard treatment for hMPV infections apart from supportive hospital care. We describe the production of a Sendai virus (SeV) recombinant that carries a gene for a truncated hMPV fusion (F) protein (SeV-MPV-Ft). The vaccine induces binding and neutralizing antibody responses toward hMPV and protection against challenge with hMPV in a cotton rat system...
September 2017: Virology
https://www.readbyqxmd.com/read/28601688/structure-and-organization-of-paramyxovirus-particles
#13
REVIEW
Robert M Cox, Richard K Plemper
The paramyxovirus family comprises major human and animal pathogens such as measles virus (MeV), mumps virus (MuV), the parainfluenzaviruses, Newcastle disease virus (NDV), and the highly pathogenic zoonotic hendra (HeV) and nipah (NiV) viruses. Paramyxovirus particles are pleomorphic, with a lipid envelope, nonsegmented RNA genomes of negative polarity, and densely packed glycoproteins on the virion surface. A number of crystal structures of different paramyxovirus proteins and protein fragments were solved, but the available information concerning overall virion organization remains limited...
June 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28600653/how-order-and-disorder-within-paramyxoviral-nucleoproteins-and-phosphoproteins-orchestrate-the-molecular-interplay-of-transcription-and-replication
#14
REVIEW
Sonia Longhi, Louis-Marie Bloyet, Stefano Gianni, Denis Gerlier
In this review, we summarize computational and experimental data gathered so far showing that structural disorder is abundant within paramyxoviral nucleoproteins (N) and phosphoproteins (P). In particular, we focus on measles, Nipah, and Hendra viruses and highlight both commonalities and differences with respect to the closely related Sendai virus. The molecular mechanisms that control the disorder-to-order transition undergone by the intrinsically disordered C-terminal domain (NTAIL) of their N proteins upon binding to the C-terminal X domain (XD) of the homologous P proteins are described in detail...
June 9, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28594325/cyclophilin-a-regulated-ubiquitination-is-critical-for-rig-i-mediated-antiviral-immune-responses
#15
Wei Liu, Jing Li, Weinan Zheng, Yingli Shang, Zhendong Zhao, Shanshan Wang, Yuhai Bi, Shuang Zhang, Chongfeng Xu, Ziyuan Duan, Lianfeng Zhang, Yue L Wang, Zhengfan Jiang, Wenjun Liu, Lei Sun
RIG-I is a key cytosolic pattern recognition receptor that interacts with MAVS to induce type I interferons (IFNs) against RNA virus infection. In this study, we found that cyclophilin A (CypA), a peptidyl-prolyl cis/trans isomerase, functioned as a critical positive regulator of RIG-I-mediated antiviral immune responses. Deficiency of CypA impaired RIG-I-mediated type I IFN production and promoted viral replication in human cells and mice. Upon Sendai virus infection, CypA increased the interaction between RIG-I and its E3 ubiquitin ligase TRIM25, leading to enhanced TRIM25-mediated K63-linked ubiquitination of RIG-I that facilitated recruitment of RIG-I to MAVS...
June 8, 2017: ELife
https://www.readbyqxmd.com/read/28591694/the-nucleocapsid-proteins-of-mouse-hepatitis-virus-and-severe-acute-respiratory-syndrome-coronavirus-share-the-same-ifn-%C3%AE-antagonizing-mechanism-attenuation-of-pact-mediated-rig-i-mda5-activation
#16
Zhen Ding, Liurong Fang, Shuangling Yuan, Ling Zhao, Xunlei Wang, Siwen Long, Mohan Wang, Dang Wang, Mohamed Frahat Foda, Shaobo Xiao
Coronaviruses (CoVs) are a huge threat to both humans and animals and have evolved elaborate mechanisms to antagonize interferons (IFNs). Nucleocapsid (N) protein is the most abundant viral protein in CoV-infected cells, and has been identified as an innate immunity antagonist in several CoVs, including mouse hepatitis virus (MHV) and severe acute respiratory syndrome (SARS)-CoV. However, the underlying molecular mechanism(s) remain unclear. In this study, we found that MHV N protein inhibited Sendai virus and poly(I:C)-induced IFN-β production by targeting a molecule upstream of retinoic acid-induced gene I (RIG-I) and melanoma differentiation gene 5 (MDA5)...
May 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28554503/saccharomyces-cerevisiae-derived-virus-like-particle-parvovirus-b19-vaccine-elicits-binding-and-neutralizing-antibodies-in-a-mouse-model-for-sickle-cell-disease
#17
Rhiannon R Penkert, Neal S Young, Sherri L Surman, Robert E Sealy, Jason Rosch, Philip R Dormitzer, Ethan C Settembre, Sumana Chandramouli, Susan Wong, Jane S Hankins, Julia L Hurwitz
Parvovirus B19 infections are typically mild in healthy individuals, but can be life threatening in individuals with sickle cell disease (SCD). A Saccharomyces cerevisiae-derived B19 VLP vaccine, now in pre-clinical development, is immunogenic in wild type mice when administered with the adjuvant MF59. Because SCD alters the immune response, we evaluated the efficacy of this vaccine in a mouse model for SCD. Vaccinated mice with SCD demonstrated similar binding and neutralizing antibody responses to those of heterozygous littermate controls following a prime-boost-boost regimen...
June 22, 2017: Vaccine
https://www.readbyqxmd.com/read/28508216/rescue-of-sendai-virus-from-cloned-cdna
#18
Shringkhala Bajimaya, Tsuyoshi Hayashi, Toru Takimoto
Sendai virus (SeV) is a non-segment negative-sense RNA virus that naturally infects and causes pneumonia in mice. As a prototypic member of the family Paramyxoviridae, SeV has been characterized well, and these studies revealed numerous traits of paramyxovirus biology. The reverse genetics system to rescue SeV was first established in 1995. The virus was rescued from a cloned cDNA that contains full genome sequence flanked by T7 promoter and hepatitis delta virus ribozyme. To rescue SeV, it is necessary to infect cells with a recombinant vaccinia virus vTF7...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28498811/the-generation-and-functional-characterization-of-induced-pluripotent-stem-cells-from-human-intervertebral-disc-nucleus-pulposus-cells
#19
Yanxia Zhu, Yuhong Liang, Hongxia Zhu, Cuihong Lian, Liang Wang, Yiwei Wang, Hongsheng Gu, Guangqian Zhou, Xiaoping Yu
Disc degenerative disease (DDD) is believed to originate in the nucleus pulposus (NP) region therefore, it is important to obtain a greater number of active NP cells for the study and therapy of DDD. Human induced pluripotent stem cells (iPSCs) are a powerful tool for modeling the development of DDD in humans, and have the potential to be applied in regenerative medicine. NP cells were isolated from DDD patients following our improved method, and then the primary NP cells were reprogramed into iPSCs with Sendai virus vectors encoding 4 factors...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28497777/phase-i-ii-clinical-trial-to-assess-safety-and-efficacy-of-intratumoral-and-subcutaneous-injection-of-hvj-e-in-castration-resistant-prostate-cancer-patients
#20
K Fujita, Y Nakai, A Kawashima, T Ujike, A Nagahara, T Nakajima, T Inoue, C M Lee, M Uemura, Y Miyagawa, Y Kaneda, N Nonomura
Inactivated Sendai virus particles (hemagglutinating virus of Japan envelope (HVJ-E)) have a novel antitumor effect: HVJ-E fused to prostate cancer cells via cell surface receptor causes apoptosis of prostate cancer cells in vitro and in vivo. HVJ-E also induces antitumor immunity by activating natural killer (NK) cells and cytotoxic T cells and suppressing regulatory T cells in vivo. We conducted an open-label, single-arm, phase I/II clinical trial in patients with castration-resistant prostate cancer (CRPC) to determine the safety and efficacy of intratumoral and subcutaneous injection of HVJ-E...
May 12, 2017: Cancer Gene Therapy
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