keyword
MENU ▼
Read by QxMD icon Read
search

Talen

keyword
https://www.readbyqxmd.com/read/29466740/talen-induced-double-strand-break-repair-of-ctg-trinucleotide-repeats
#1
Valentine Mosbach, Lucie Poggi, David Viterbo, Marine Charpentier, Guy-Franck Richard
Trinucleotide repeat expansions involving CTG/CAG triplets are responsible for several neurodegenerative disorders, including myotonic dystrophy and Huntington's disease. Because expansions trigger the disease, contracting repeat length could be a possible approach to gene therapy for these disorders. Here, we show that a TALEN-induced double-strand break was very efficient at contracting expanded CTG repeats in yeast. We show that RAD51, POL32, and DNL4 are dispensable for double-strand break repair within CTG repeats, the only required genes being RAD50, SAE2, and RAD52...
February 20, 2018: Cell Reports
https://www.readbyqxmd.com/read/29453127/generation-of-d1-1-talen-isogenic-control-cell-line-from-dravet-syndrome-patient-ipscs-using-talen-mediated-editing-of-the-scn1a-gene
#2
Yasuyoshi Tanaka, Takefumi Sone, Norimichi Higurashi, Tetsushi Sakuma, Sadafumi Suzuki, Mitsuru Ishikawa, Takashi Yamamoto, Jun Mitsui, Hitomi Tsuji, Hideyuki Okano, Shinichi Hirose
Dravet syndrome (DS) is an infantile epileptic encephalopathy mainly caused by de novo mutations in the SCN1A gene encoding the α1 subunit of the voltage-gated sodium channel Nav 1.1. As an in vitro model of this disease, we previously generated an induced pluripotent stem cell (iPSC) line from a patient with DS carrying a c.4933C>T (p.R1645*) substitution in SCN1A. Here, we describe developing a genome-edited control cell line from this DS iPSC line by substituting the point mutation with the wild-type residue...
February 2, 2018: Stem Cell Research
https://www.readbyqxmd.com/read/29440709/brca1-function-in-the-intra-s-checkpoint-is-activated-by-acetylation-via-a-pcaf-sirt1-axis
#3
Tyler J Lahusen, Seung-Jin Kim, Kai Miao, Zebin Huang, Xiaoling Xu, Chu-Xia Deng
Breast cancer associated gene 1 (BRCA1) function has been shown to be regulated by phosphorylation but the role of acetylation has not been determined. Therefore, we tested whether BRCA1 can be acetylated by the acetyltransferases P300/CBP-associated factor (pCAF), GCN5, and p300. p300 exhibited the highest level of BRCA1 acetylation; however, there was also a decrease in the total level of BRCA1. Therefore, we focused on pCAF and GCN5 because they both acetylated BRCA1 without affecting BRCA1 expression. Further analysis indicated that the acetylated form of BRCA1 is deacetylated by wild-type (WT) SIRT1, but not deacetylase mutant SIRT1, suggesting that SIRT1 is a specific deacetylase of BRCA1...
February 14, 2018: Oncogene
https://www.readbyqxmd.com/read/29435939/application-of-tale-based-approach-for-dissecting-functional-microrna-302-367-in-cellular-reprogramming
#4
Zhonghui Zhang, Wen-Shu Wu
MicroRNAs are small 18-24 nt single-stranded noncoding RNA molecules involved in many biological processes, including stemness maintenance and cellular reprogramming. Current methods used in loss-of-function studies of microRNAs have several limitations. Here, we describe a new approach for dissecting miR-302/367 functions by transcription activator-like effectors (TALEs), which are natural effector proteins secreted by Xanthomonas and Ralstonia bacteria. Knockdown of the miR-302/367 cluster uses the Kruppel-associated box repressor domain fused with specific TALEs designed to bind the miR-302/367 cluster promoter...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29427479/towards-hbv-curative-therapies
#5
REVIEW
Raymond F Schinazi, Maryam Ehteshami, Leda Bassit, Tarik Asselah
Tremendous progress has been made over the last 2 decades to discover and develop approaches to control hepatitis B virus (HBV) infections and to prevent the development of hepatocellular carcinoma using various interferons and small molecules as antiviral agents. However, none of these agents have significant impact on eliminating HBV from infected cells. Currently the emphasis is on silencing or eliminating cccDNA, which could lead to a cure for HBV. Various approaches are being developed including the development of capsid effectors, CRISPR/Cas9, TALENS, siRNA, entry and secretion inhibitors, as well as immunological approaches...
February 2018: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29423215/development-of-genome-engineering-technologies-in-cattle-from-random-to-specific
#6
REVIEW
Soo-Young Yum, Ki-Young Youn, Woo-Jae Choi, Goo Jang
The production of transgenic farm animals (e.g., cattle) via genome engineering for the gain or loss of gene functions is an important undertaking. In the initial stages of genome engineering, DNA micro-injection into one-cell stage embryos (zygotes) followed by embryo transfer into a recipient was performed because of the ease of the procedure. However, as this approach resulted in severe mosaicism and has a low efficiency, it is not typically employed in the cattle as priority, unlike in mice. To overcome the above issue with micro-injection in cattle, somatic cell nuclear transfer (SCNT) was introduced and successfully used to produce cloned livestock...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29423214/use-of-gene-editing-technology-to-introduce-targeted-modifications-in-pigs
#7
REVIEW
Junghyun Ryu, Randall S Prather, Kiho Lee
Pigs are an important resource in agriculture and serve as a model for human diseases. Due to their physiological and anatomical similarities with humans, pigs can recapitulate symptoms of human diseases, making them a useful model in biomedicine. However, in the past pig models have not been widely used partially because of the difficulty in genetic modification. The lack of true embryonic stem cells in pigs forced researchers to utilize genetic modification in somatic cells and somatic cell nuclear transfer (SCNT) to generate genetically engineered (GE) pigs carrying site-specific modifications...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29414603/a-homozygous-p53-r282w-mutant-human-embryonic-stem-cell-line-generated-using-talen-mediated-precise-gene-editing
#8
Ruoji Zhou, An Xu, Donghui Wang, Dandan Zhu, Helen Mata, Zijun Huo, Jian Tu, Mo Liu, Alaa M T Mohamed, Brittany E Jewell, Julian Gingold, Weiya Xia, Pulivarthi H Rao, Mien-Chie Hung, Ruiying Zhao, Dung-Fang Lee
The tumor suppressor gene TP53 is the most frequently mutated gene in human cancers. Many hot-spot mutations of TP53 confer novel functions not found in wild-type p53 and contribute to tumor development and progression. We report on the generation of a H1 human embryonic stem cell line carrying a homozygous TP53 R282W mutation using TALEN-mediated genome editing. The generated cell line demonstrates normal karyotype, maintains a pluripotent state, and is capable of generating a teratoma in vivo containing tissues from all three germ layers...
January 26, 2018: Stem Cell Research
https://www.readbyqxmd.com/read/29393557/talen-mediated-gene-targeting-in-porcine-spermatogonia
#9
Lin Tang, Alla Bondareva, Raquel González, Jose Rafael Rodriguez-Sosa, Daniel F Carlson, Dennis Webster, Scott Fahrenkrug, Ina Dobrinski
Spermatogonia represent a diploid germ cell population that includes spermatogonial stem cells. In this report, we describe new methods for isolation of highly enriched porcine spermatogonia based on light scatter properties, and for targeted mutagenesis in porcine spermatogonia using nucleofection and TALENs. We optimized a nucleofection protocol to deliver TALENs specifically targeting the DMD locus in porcine spermatogonia. We also validated specific sorting of porcine spermatogonia based on light scatter properties...
February 2, 2018: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/29393424/genetic-correction-of-adipose-tissue-derived-mesenchymal-stem-cells-mediated-by-talen-targeting-the-gdf5-gene
#10
Baofeng Li, Ying Zhang, Mei Li, Xiaoliang Zhao, Huibin Xie, Xiaoze Guo, Fei Wang, Hong Xia, Bei Chen
Stem cells and other associated cell types may be a potential alternative to treat various genetic disorders that currently do not benefit from traditional approaches. Functional recovery of cells could be induced via directional differentiation or genetic manipulation. In this study, mesenchymal stem cells (MSCs) were obtained from a patient with osteoarthritis (OA) carrying a functional single‑nucleotide polymorphism (SNP rs143383, C/T transition) within the 5'‑UTR of growth and differentiation factor 5 (GDF5) gene...
January 30, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29392354/advances-in-transcriptomics-of-plants
#11
Naghmeh Nejat, Abirami Ramalingam, Nitin Mantri
The current global population of 7.3 billion is estimated to reach 9.7 billion in the year 2050. Rapid population growth is driving up global food demand. Additionally, global climate change, environmental degradation, drought, emerging diseases, and salty soils are the current threats to global food security. In order to mitigate the adverse effects of these diverse agricultural productivity constraints and enhance crop yield and stress-tolerance in plants, we need to go beyond traditional and molecular plant breeding...
February 2, 2018: Advances in Biochemical Engineering/biotechnology
https://www.readbyqxmd.com/read/29383175/apancreatic-pigs-cloned-using-pdx1-disrupted-fibroblasts-created-via-talen-mediated-mutagenesis
#12
Jin-Dan Kang, Hyojin Kim, Long Jin, Qing Guo, Cheng-Du Cui, Wen-Xue Li, Seokjoong Kim, Jin-Soo Kim, Xi-Jun Yin
Pancreatic and duodenal homeobox 1 (PDX1) plays a crucial role in pancreas development, β-cell differentiation, and maintenance of mature β-cell function. In this study, we designed a strategy to produce PDX1-knockout (KO) pigs. A transcription activator-like effector nuclease (TALEN) pair targeting exon 1 of the swine PDX1 gene was constructed. Porcine fetal fibroblasts (PFFs) were transfected with the TALEN plasmids plus a surrogate reporter plasmid. PDX1-mutated PFFs were enriched by magnetic separation and used to produce homozygous PDX1-KO pigs via a two-step somatic cell nuclear transfer (SCNT) cloning process...
December 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29363554/insight-into-the-molecular-mechanism-of-mir-192-regulating-escherichiacoli-resistance-in-piglets
#13
Li Sun, Sen Wu, Chao-Hui Dai, Shou-Yong Sun, Guo-Qiang Zhu, Sheng-Long Wu, Wen-Bin Bao
MicroRNAs (miRNAs) have important roles in many cellular processes, including cell proliferation, growth and development and disease control. Previous study demonstrated that the expression of two highly homologous miRNAs (miR-192 and 215) was upregulated in weaned piglets with Escherichia coli F18 infection. However, the potential molecular mechanism of miR-192 in regulating E. coli infection remains unclear in pigs. In this study, we analyzed the relationship between level of miR-192 and degree of E. coli resistance using transcription activator-like effector nuclease (TALEN), in vitro bacterial adhesion assays and target genes research...
January 23, 2018: Bioscience Reports
https://www.readbyqxmd.com/read/29361752/crispr-cas9-advancing-orthopoxvirus-genome-editing-for-vaccine-and-vector-development
#14
REVIEW
Arinze Okoli, Malachy I Okeke, Morten Tryland, Ugo Moens
The clustered regularly interspaced short palindromic repeat (CRISPR)/associated protein 9 (Cas9) technology is revolutionizing genome editing approaches. Its high efficiency, specificity, versatility, flexibility, simplicity and low cost have made the CRISPR/Cas9 system preferable to other guided site-specific nuclease-based systems such as TALENs (Transcription Activator-like Effector Nucleases) and ZFNs (Zinc Finger Nucleases) in genome editing of viruses. CRISPR/Cas9 is presently being applied in constructing viral mutants, preventing virus infections, eradicating proviral DNA, and inhibiting viral replication in infected cells...
January 22, 2018: Viruses
https://www.readbyqxmd.com/read/29356153/mun-meristem-unstructured-encoding-a-spc24-homolog-of-ndc80-kinetochore-complex-affects-development-through-cell-division-in-arabidopsis-thaliana
#15
Jinwoo Shin, Goowon Jeong, Jong-Yoon Park, Hoyeun Kim, Ilha Lee
Kinetochore, a protein super-complex on the centromere of chromosomes, mediates chromosome segregation during cell division by providing attachment sites for spindle microtubules. The NDC80 complex, composed of four proteins, NDC80, NUF2, SPC24, and SPC25, is localized at the outer kinetochore and connects spindle fibers to the kinetochore. Although it is conserved across species, functional studies of this complex are rare in Arabidopsis. Here, we characterize a recessive mutant, meristem unstructured-1 (mun-1), exhibiting an abnormal phenotype with unstructured shoot apical meristem caused by ectopic expression of the WUSCHEL gene in unexpected tissues...
January 21, 2018: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/29349579/malaria-infectivity-of-xanthurenic-acid-deficient-anopheline-mosquitoes-produced-by-talen-mediated-targeted-mutagenesis
#16
Daisuke S Yamamoto, Megumi Sumitani, Masatsugu Hatakeyama, Hiroyuki Matsuoka
Anopheline mosquitoes are major vectors of malaria parasites. When the gametocytes of the malaria parasite are transferred from a vertebrate to mosquitoes, they differentiate into gametes, and are fertilized in the midguts of mosquitoes. Xanthurenic acid (XA), a waste product of the ommochrome synthesis pathway, has been shown to induce exflagellation during microgametogenesis in vitro; however, it currently remains unclear whether endogenous XA affects the infectivity of anopheline mosquitoes to malaria parasites in vivo due to the lack of appropriate experimental systems such as a XA-deficient line...
January 18, 2018: Transgenic Research
https://www.readbyqxmd.com/read/29344676/application-of-genome-editing-techniques-in-immunology
#17
REVIEW
Agata O Zych, Malgorzata Bajor, Radoslaw Zagozdzon
The idea of using the effector immune cells to specifically fight cancer has recently evolved into an exciting concept of adoptive cell therapies. Indeed, genetically engineered T cells expressing on their surface recombinant, cancer-targeted receptors have been shown to induce promising response in oncological patients. However, in addition to exogenous expression of such receptors, there is also a need for disruption of certain genes in the immune cells to achieve more potent disease-targeted actions, to produce universal chimeric antigen receptor-based therapies or to study the signaling pathways in detail...
January 17, 2018: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/29342478/design-and-implementation-of-a-visual-analytics-electronic-antibiogram-within-an-electronic-health-record-system-at-a-tertiary-pediatric-hospital
#18
Allan F Simpao, Luis M Ahumada, Beatriz Larru Martinez, Ana M Cardenas, Talene A Metjian, Kaede V Sullivan, Jorge A Gálvez, Bimal R Desai, Mohamed A Rehman, Jeffrey S Gerber
BACKGROUND:  Hospitals use antibiograms to guide optimal empiric antibiotic therapy, reduce inappropriate antibiotic usage, and identify areas requiring intervention by antimicrobial stewardship programs. Creating a hospital antibiogram is a time-consuming manual process that is typically performed annually. OBJECTIVE:  We aimed to apply visual analytics software to electronic health record (EHR) data to build an automated, electronic antibiogram ("e-antibiogram") that adheres to national guidelines and contains filters for patient characteristics, thereby providing access to detailed, clinically relevant, and up-to-date antibiotic susceptibility data...
January 2018: Applied Clinical Informatics
https://www.readbyqxmd.com/read/29318513/targeted-elimination-of-mutant-mitochondrial-dna-in-melas-ipscs-by-mitotalens
#19
Yi Yang, Han Wu, Xiangjin Kang, Yanhui Liang, Ting Lan, Tianjie Li, Tao Tan, Jiangyun Peng, Quanjun Zhang, Geng An, Yali Liu, Qian Yu, Zhenglai Ma, Ying Lian, Boon Seng Soh, Qingfeng Chen, Ping Liu, Yaoyong Chen, Xiaofang Sun, Rong Li, Xiumei Zhen, Ping Liu, Yang Yu, Xiaoping Li, Yong Fan
Mitochondrial diseases are maternally inherited heterogeneous disorders that are primarily caused by mitochondrial DNA (mtDNA) mutations. Depending on the ratio of mutant to wild-type mtDNA, known as heteroplasmy, mitochondrial defects can result in a wide spectrum of clinical manifestations. Mitochondria-targeted endonucleases provide an alternative avenue for treating mitochondrial disorders via targeted destruction of the mutant mtDNA and induction of heteroplasmic shifting. Here, we generated mitochondrial disease patient-specific induced pluripotent stem cells (MiPSCs) that harbored a high proportion of m...
January 9, 2018: Protein & Cell
https://www.readbyqxmd.com/read/29308880/multiple-chemical-inducible-tal-effectors-for-genome-editing-and-transcription-activation
#20
Chen Zhao, Yue Zhang, Yingze Zhao, Yue Ying, Runna Ai, Jingfang Zhang, Yu Wang
Inducible modulation is often required for precise investigations and manipulations of dynamic biological processes. Transcription activator-like effectors (TALEs) provide a powerful tool for targeted gene editing and transcriptional programming. We designed a series of chemical inducible systems by coupling TALEs with a mutated human estrogen receptor (ERT2), which renders them 4-hydroxyl-tamoxifen (4-OHT) inducible for access of the genome. Chemical inducible genome editing was achieved via fusing two tandem ERT2 domains to customized transcription activator-like effector nuclease (TALEN), which we termed "Hybrid Inducible Technology" (HIT-TALEN)...
January 8, 2018: ACS Chemical Biology
keyword
keyword
1571
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"