keyword
MENU ▼
Read by QxMD icon Read
search

Transcription activator-like effectors

keyword
https://www.readbyqxmd.com/read/28430356/crispr-cas9-an-rna-guided-highly-precise-synthetic-tool-for-plant-genome-editing
#1
REVIEW
Yeliz Demirci, Baohong Zhang, Turgay Unver
CRISPR/Cas 9 is a newly developed and naturally occurred genome editing tool, which is originally used by bacteria for immune defence. In the past years, it has been quickly employed and modified to precisely edit genome sequences in both plants and animals. Compared with the well-developed zinc finger nucleases (ZFNs) and transcription activator-like effector nucleases (TALENs), CRISPR/Cas 9 has lots of advantages, including easier to design and implement, higher targeting efficiency, and less expensive. Thus, it is becoming one of the most powerful tools for knockout of an individual gene as well as insertion of one gene and/or control of gene transcription...
April 21, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28427156/the-effects-of-dleu1-gene-expression-in-burkitt-lymphoma-bl-potential-mechanism-of-chemoimmunotherapy-resistance-in-bl
#2
Sanghoon Lee, Wen Luo, Tishi Shah, Changhong Yin, Timmy O'Connell, Tae-Hoon Chung, Sherrie L Perkins, Rodney R Miles, Janet Ayello, Erin Morris, Lauren Harrison, Carmella van de Ven, Mitchell S Cairo
Following a multivariant analysis we demonstrated that children and adolescents with Burkitt lymphoma (BL) and a 13q14.3 deletion have a significant decrease in event free survival (EFS) despite identical short intensive multi-agent chemotherapy. However, how this deletion in the 13q14.3 region is associated with a significant decrease in EFS in children and adolescents with BL is largely unknown. The gene Deleted in Lymphocytic Leukemia 1 (DLEU1) is located in the region of 13q14.3. Here, we report that DLEU1 expression is implicated in the regulation of BL programmed cell death, cell proliferation, and expression of apoptotic genes in transcription activator-like effector nuclease (TALEN)s-induced DLEU1 knockdown and DLEU1 overexpressing BL cell lines...
February 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28421278/an-efficient-method-to-enrich-for-knock-out-and-knock-in-cellular-clones-using-the-crispr-cas9-system
#3
Francesca Niccheri, Riccardo Pecori, Silvestro G Conticello
Clustered Regularly Interspaced Short Palindromic Repeats-associated protein 9 nuclease (CRISPR/Cas9) and Transcription Activator-Like Effector Nucleases (TALENs) are versatile tools for genome editing. Here we report a method to increase the frequency of Cas9-targeted cellular clones. Our method is based on a chimeric construct with a Blasticidin S Resistance gene (bsr) placed out-of-frame by a surrogate target sequence. End joining of the CRISPR/Cas9-induced double-strand break on the surrogate target can place the bsr in frame, thus providing temporary resistance to Blasticidin S: this is used to enrich for cells where Cas9 is active...
April 18, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28418922/novel-impact-of-the-dnmt3a-r882h-mutation-on-gsh-metabolism-in-a-k562-cell-model-established-by-talens
#4
Li Yang, Ya'Nan Liu, Na Zhang, Xiao'Yi Ding, Wei Zhang, Ke'Feng Shen, Liang Huang, Jian'Feng Zhou, Sen Cui, Zun'Min Zhu, Zheng Hu, Min Xiao
DNA methyltransferase 3A (DNMT3A) mutations occurred in 18%~23% of acute myeloid leukemia (AML) patients, and were considered to be an adverse prognostic factor for adult de novo AML cases. However, the relevant molecular mechanism of the mutation in AML pathogenesis remains obscure. In this study, we established K562 and SKM1 cell model carrying the DNMT3A R882H mutation via transcription activator-like effector nuclease (TALEN) and Clustered regularly interspaced short palindromic repeats (CRISPR/Cas9) technology, and discovered that mutated DNMT3A could promote the proliferative capability of malignant cell clones...
March 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414200/combining-53bp1-with-brca1-as-a-biomarker-to-predict-the-sensitivity-of-poly-adp-ribose-polymerase-parp-inhibitors
#5
Zhong-Min Yang, Xue-Mei Liao, Yi Chen, Yan-Yan Shen, Xin-Ying Yang, Yi Su, Yi-Ming Sun, Ying-Lei Gao, Jian Ding, Ao Zhang, Jin-Xue He, Ze-Hong Miao
Over half of patients with BRCA1-deficient cancers do not respond to treatment with poly(ADP-ribose) polymerase (PARP) inhibitors. In this study, we report that a combination of 53BP1 and BRCA1 may serve as a biomarker of PARP inhibitor sensitivity. Based on the mRNA levels of four homologous recombination repair (HR) genes and PARP inhibitor sensitivity, we selected BRCA1-deficient MDA-MB-436 cells to conduct RNA interference. Reducing expression of 53BP1, but not the other three HR genes, was found to lower simmiparib sensitivity...
April 17, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28412462/spop-regulates-gli3-activity-and-shh-signaling-in-dorsoventral-patterning-of-the-mouse-spinal-cord
#6
Hongchen Cai, Aimin Liu
Sonic Hedgehog (Shh) signaling regulates the patterning of ventral spinal cord through the effector Gli family of transcription factors. Previous in vitro studies showed that an E3 ubiquitin ligase containing Speckle-type POZ protein (Spop) targets Gli2 and Gli3 for ubiquitination and degradation, but the role of Spop in Shh signaling and mammalian spinal cord patterning remains unknown. Here, we show that loss of Spop does not alter spinal cord patterning, but it suppresses the loss of floor plate and V3 interneuron phenotype of Gli2 mutants, suggesting a negative role of Spop in Gli3 activator activity, Shh signaling and the specification of ventral cell fates in the spinal cord...
April 12, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28412355/crystal-structure-of-the-c-terminal-domain-of-bacillus-subtilis-gabr-reveals-a-closed-conformation-by-%C3%AE-aminobutyric-acid-binding-inducing-transcriptional-activation
#7
Seong Ah Park, Ye Song Park, Ki Seog Lee
Bacillus subtilis GabR (BsGabR) is involved in the γ-aminobutyric acid (GABA) catabolism as a transcriptional regulator, consisting of an N-terminal helix-turn-helix DNA-binding domain and a C-terminal aminotransferase-like (AT-like) domain. Research on the C-terminal AT-like domain of BsGabR (BsGabR-CTD) has focused on the interaction with GABA as an effector, but most its functional details remain unclear. To understand the underlying mechanism, we report the crystal structure of BsGabR-CTD in complex with pyridoxal 5'-phosphate (PLP) and GABA at 2...
April 12, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28412228/temperature-effect-on-crispr-cas9-mediated-genome-editing
#8
Guanghai Xiang, Xingying Zhang, Chenrui An, Chen Cheng, Haoyi Wang
Zinc-finger nuclease (ZFN), transcription activator-like effector nuclease (TALEN), and clustered regularly interspaced short palindromic repeats/CRISPR-associated protein 9 (CRISPR-Cas9) are the most commonly used genome editing tools. Previous studies demonstrated that hypothermia treatment increased the mutation rates induced by ZFNs and TALENs in mammalian cells. Here, we characterize the effect of different culture temperatures on CRISPR-Cas9 mediated genome editing and find that the genome editing efficiency of CRISPR-Cas9 is significantly hampered by hypothermia treatment, unlike ZFN and TALEN...
March 30, 2017: Journal of Genetics and Genomics, Yi Chuan Xue Bao
https://www.readbyqxmd.com/read/28410577/a-candidate-rxlr-effector-from-plasmopara-viticola-can-elicit-immune-responses-in-nicotiana-benthamiana
#9
Jiang Xiang, Xinlong Li, Ling Yin, Yunxiao Liu, Yali Zhang, Junjie Qu, Jiang Lu
BACKGROUND: Diverse plant pathogens deliver effectors into plant cells to alter host processes. Oomycete pathogen encodes a large number of putative RxLR effectors which are likely to play a role in manipulating plant defense responses. The secretome of Plasmopara viticola (downy mildew of grapevine) contains at least 162 candidate RxLR effectors discovered in our recent studies, but their roles in infection and pathogenicity remain to be determined. Here, we characterize in depth one of the putative RxLR effectors, PvRxLR16, which has been reported to induce cell death in Nicotiana benthamiana in our previous study...
April 14, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28410150/platelet-toll-like-receptors-in-thromboinflammation
#10
Lina Paola D' Atri, Mirta Schattner
Besides their undiscussed role in hemostasis and thrombosis, platelets are also key effector cells capable of assisting and modulating inflammatory reactions and immune responses. Platelets play a sentinel role in immune surveillance by recognizing danger signals from pathogens and cell damage through the expression of toll-like receptors (TLRs) on its surface and internal compartments. Platelets express all 10 TLRs transcripts and its signalosome, including adaptor proteins and transcription factors. The activation of these receptors in platelets triggers hemostatic and inflammatory responses which participate in the host's response to bacterial and viral infections, linking thrombosis with infection and immunity...
June 1, 2017: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/28408906/cellular-and-molecular-dynamics-of-th17-differentiation-and-its-developmental-plasticity-in-the-intestinal-immune-response
#11
REVIEW
Suniti Bhaumik, Rajatava Basu
After emerging from the thymus, naive CD4 T cells circulate through secondary lymphoid tissues, including gut-associated lymphoid tissue of the intestine. The activation of naïve CD4 T cells by antigen-presenting cells offering cognate antigen initiate differentiation programs that lead to the development of highly specialized T helper (Th) cell lineages. Although initially believed that developmental programing of effector T cells such as T helper 1 (Th1) or T helper 2 (Th2) resulted in irreversible commitment to a fixed fate, subsequent studies have demonstrated greater flexibility, or plasticity, in effector T cell stability than originally conceived...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28405721/genome-editing-a-robust-technology-for-human-stem-cells
#12
REVIEW
Arun Pandian Chandrasekaran, Minjung Song, Suresh Ramakrishna
Human pluripotent stem cells comprise induced pluripotent and embryonic stem cells, which have tremendous potential for biological and therapeutic applications. The development of efficient technologies for the targeted genome alteration of stem cells in disease models is a prerequisite for utilizing stem cells to their full potential. Genome editing of stem cells is possible with the help of synthetic nucleases that facilitate site-specific modification of a gene of interest. Recent advances in genome editing techniques have improved the efficiency and speed of the development of stem cells for human disease models...
April 12, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28396530/downregulation-of-plzf-gene-ameliorates-metabolic-and-cardiac-traits-in-the-spontaneously-hypertensive-rat
#13
František Liška, Vladimír Landa, Václav Zídek, Petr Mlejnek, Jan Šilhavý, Miroslava Šimáková, Hynek Strnad, Jaroslava Trnovská, Vojtěch Škop, Ludmila Kazdová, Colby G Starker, Daniel F Voytas, Zsuzsanna Izsvák, Massimiliano Mancini, Ondřej Šeda, Vladimír Křen, Michal Pravenec
The spontaneously hypertensive rat (SHR), one of the most widely used model of essential hypertension, is predisposed to left ventricular hypertrophy, myocardial fibrosis, and metabolic disturbances. Recently, quantitative trait loci influencing blood pressure, left ventricular mass, and heart interstitial fibrosis were genetically isolated within a minimal congenic subline that contains only 7 genes, including mutant Plzf (promyelocytic leukemia zinc finger) candidate gene. To identify Plzf as a quantitative trait gene, we targeted Plzf in the SHR using the transcription activator-like effector nuclease technique and obtained SHR line harboring targeted Plzf gene with a premature stop codon...
April 10, 2017: Hypertension
https://www.readbyqxmd.com/read/28392568/therapeutic-gene-editing-delivery-and-regulatory-perspectives
#14
REVIEW
Gayong Shim, Dongyoon Kim, Gyu Thae Park, Hyerim Jin, Soo-Kyung Suh, Yu-Kyoung Oh
Gene-editing technology is an emerging therapeutic modality for manipulating the eukaryotic genome by using target-sequence-specific engineered nucleases. Because of the exceptional advantages that gene-editing technology offers in facilitating the accurate correction of sequences in a genome, gene editing-based therapy is being aggressively developed as a next-generation therapeutic approach to treat a wide range of diseases. However, strategies for precise engineering and delivery of gene-editing nucleases, including zinc finger nucleases, transcription activator-like effector nuclease, and CRISPR/Cas9 (clustered regularly interspaced short palindromic repeats-associated nuclease Cas9), present major obstacles to the development of gene-editing therapies, as with other gene-targeting therapeutics...
April 10, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28388605/refining-strategies-to-translate-genome-editing-to-the-clinic
#15
REVIEW
Tatjana I Cornu, Claudio Mussolino, Toni Cathomen
Recent progress in developing programmable nucleases, such as zinc-finger nucleases, transcription activator-like effector nucleases (TALENs) and clustered regularly interspaced short palindromic repeat (CRISPR)-Cas nucleases, have paved the way for gene editing to enter clinical practice. This translation is a result of combining high nuclease activity with high specificity and successfully applying this technology in various preclinical disease models, including infectious disease, primary immunodeficiencies, hemoglobinopathies, hemophilia and muscular dystrophy...
April 3, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28387970/mutation-of-the-xist-gene-up-regulates-expression-of-x-linked-genes-but-decreases-the-developmental-rates-of-cloned-male-porcine-embryos
#16
Yang Yang, Dan Wu, Dewu Liu, Junsong Shi, Rong Zhou, Xiaoyan He, Jianping Quan, Gengyuan Cai, Enqin Zheng, Zhenfang Wu, Zicong Li
XIST is an X-linked, non-coding gene responsible for the cis induction of X-chromosome inactivation (XCI). Knockout of the XIST allele on an active X chromosome abolishes erroneous XCI and enhances the in vivo development of cloned mouse embryos by more than tenfold. This study aimed to investigate if a similar manipulation would improve cloning efficiency in pigs. A male, porcine kidney cell line containing an EGFP insert in exon 1 of the XIST gene, resulting in a knockout allele (XIST-KO), was generated by homologous recombination using transcription activator-like effector nucleases (TALENs)...
April 7, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28386554/identification-of-ifitm1-and-ifitm3-in-goose-gene-structure-expression-patterns-and-immune-reponses-against-tembusu-virus-infection
#17
Anqi Wang, Lipei Sun, Mingshu Wang, Renyong Jia, Dekang Zhu, Mafeng Liu, Kunfeng Sun, Qiao Yang, Ying Wu, Xiaoyue Chen, Anchun Cheng, Shun Chen
As interferon-stimulated genes (ISGs), interferon-inducible transmembrane proteins 1 and 3 (IFITM1 and IFITM3) can effectively inhibit the replication of multiple viruses. Here, goose IFITM1 and IFITM3 were cloned and identified for the first time. The two proteins share the same topological structure and several important sites critical for the antiviral functions in other species are conserved in the goose. Goose IFITM1 and IFITM3 are most closely related to their respective orthologs in ducks; these proteins exhibited high mRNA transcript levels in immune-related tissues, including the thymus, bursa of Fabricius, and Harderian gland, compared to other tissues...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28383481/strange-bedfellows-nuclear-factor-erythroid-2-like-2-nrf2-and-hypoxia-inducible-factor-1-hif-1-in-tumor-hypoxia
#18
REVIEW
Rachel K Toth, Noel A Warfel
The importance of the tumor microenvironment for cancer progression and therapeutic resistance is an emerging focus of cancer biology. Hypoxia, or low oxygen, is a hallmark of solid tumors that promotes metastasis and represents a significant obstacle to successful cancer therapy. In response to hypoxia, cancer cells activate a transcriptional program that allows them to survive and thrive in this harsh microenvironment. Hypoxia-inducible factor 1 (HIF-1) is considered the main effector of the cellular response to hypoxia, stimulating the transcription of genes involved in promoting angiogenesis and altering cellular metabolism...
April 6, 2017: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28376087/elucidation-of-the-calcineurin-crz1-stress-response-transcriptional-network-in-the-human-fungal-pathogen-cryptococcus-neoformans
#19
Eve W L Chow, Shelly A Clancey, R Blake Billmyre, Anna Floyd Averette, Joshua A Granek, Piotr Mieczkowski, Maria E Cardenas, Joseph Heitman
Calcineurin is a highly conserved Ca2+/calmodulin-dependent serine/threonine-specific protein phosphatase that orchestrates cellular Ca2+ signaling responses. In Cryptococcus neoformans, calcineurin is activated by multiple stresses including high temperature, and is essential for stress adaptation and virulence. The transcription factor Crz1 is a major calcineurin effector in Saccharomyces cerevisiae and other fungi. Calcineurin dephosphorylates Crz1, thereby enabling Crz1 nuclear translocation and transcription of target genes...
April 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28360132/dose-dependent-transduction-of-hedgehog-relies-on-phosphorylation-based-feedback-between-the-gpcr-smoothened-and-the-kinase-fused
#20
Matthieu Sanial, Isabelle Bécam, Line Hofmann, Julien Behague, Camilla Argüelles, Vanessa Gourhand, Lucia Bruzzone, Robert A Holmgren, Anne Plessis
Smoothened (SMO) is a GPCR-related protein required for the transduction of Hedgehog (HH). The HH gradient leads to graded phosphorylation of SMO, mainly by the PKA and CKI kinases. How thresholds in HH morphogen regulate SMO to promote switch-like transcriptional responses is a central unsolved issue. Using the wing imaginal disc model in Drosophila, we identified novel SMO phosphosites that enhance the effects of the PKA/CKI kinases on SMO accumulation, its localization at the plasma membrane and its activity...
March 30, 2017: Development
keyword
keyword
62226
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"