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https://www.readbyqxmd.com/read/28550381/treatment-of-dyslipidemia-using-crispr-cas9-genome-editing
#1
REVIEW
Alexandra C Chadwick, Kiran Musunuru
PURPOSE OF REVIEW: Clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated 9 (Cas9) has recently emerged as a top genome editing technology and has afforded investigators the ability to more easily study a number of diseases. This review discusses CRISPR/Cas9's advantages and limitations and highlights a few recent reports on genome editing applications for alleviating dyslipidemia through disruption of proprotein convertase subtilisin/kexin type 9 (PCSK9)...
July 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/28549739/characterization-of-a-major-facilitator-superfamily-transporter-in-shiraia-bambusicola
#2
Huaxiang Deng, Ruijie Gao, Xiangru Liao, Yujie Cai
Reactive oxygen species (ROS) generated by photo-activated hypocrellin from Shiraia bambusicola are detrimental to cellular macromolecules. However, S. bambusicola can still maintain excellent morphology during continuous hypocrellin production, indicating an extraordinary autoresistance system that protects against the harmful ROS. In this study, a major facilitator superfamily transporter (MFS) was isolated from S. bambusicola and deleted using the clustered regularly interspaced short palindromic repeat sequences (CRISPR)/Cas9 system...
May 23, 2017: Research in Microbiology
https://www.readbyqxmd.com/read/28549700/trimodality-therapy-for-esophageal-squamous-cell-carcinoma-is-it-really-a-medical-palindrome
#3
EDITORIAL
Usman Ahmad, Sudish C Murthy, Siva Raja
No abstract text is available yet for this article.
April 3, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28543738/crispr-editing-in-biological-and-biomedical-investigation
#4
Xing-Da Ju, Jing Xu, Zhong Sheng Sun
The CRISPR (clustered regularly interspaced short palindromic repeat)-Cas (CRISPR--associated protein) system, a prokaryotic RNA-based adaptive immune system against viral infection, is emerging as a powerful genome editing tool in broad research areas. To further improve and expand its functionality, various CRISPR delivery strategies have been tested and optimized, and key CRISPR system components such as Cas protein have been engineered with different purposes. Benefiting from more in-depth understanding and further development of CRISPR, versatile CRISPR-based platforms for genome editing have been rapidly developed to advance investigations in biology and biomedicine...
May 20, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28542349/crispr-cas9-mediated-targeted-mutagenesis-in-grape
#5
Ikuko Nakajima, Yusuke Ban, Akifumi Azuma, Noriyuki Onoue, Takaya Moriguchi, Toshiya Yamamoto, Seiichi Toki, Masaki Endo
RNA-guided genome editing using the CRISPR/Cas9 CRISPR (clustered regularly interspaced short palindromic repeats)/Cas9 (CRISPR-associated protein 9) system has been applied successfully in several plant species. However, to date, there are few reports on the use of any of the current genome editing approaches in grape-an important fruit crop with a large market not only for table grapes but also for wine. Here, we report successful targeted mutagenesis in grape (Vitis vinifera L., cv. Neo Muscat) using the CRISPR/Cas9 system...
2017: PloS One
https://www.readbyqxmd.com/read/28536069/crispr-engineered-genome-editing-for-the-next-generation-neurological-disease-modeling
#6
REVIEW
Weijun Feng, Hai-Kun Liu, Daisuke Kawauchi
Neurological disorders often occur because of failure of proper brain development and/or appropriate maintenance of neuronal circuits. In order to understand roles of causative factors (e.g. genes, cell types) in disease development, generation of solid animal models has been one of straight-forward approaches. Recent next generation sequencing studies on human patient-derived clinical samples have identified various types of recurrent mutations in individual neurological diseases. While these discoveries have prompted us to evaluate contribution of mutated genes to these neurological diseases, a feasible but flexible genome editing tool had remained to be developed...
May 20, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28535195/presence-of-type-i-f-crispr-cas-systems-is-associated-with-antimicrobial-susceptibility-in-escherichia-coli
#7
Seyid Aydin, Yoann Personne, Enas Newire, Rebecca Laverick, Oliver Russell, Adam P Roberts, Virve I Enne
Background: Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) and their associated cas genes are sequence-specific DNA nuclease systems found in bacteria and archaea. CRISPR/Cas systems use RNA transcripts of previously acquired DNA (spacers) to target invading genetic elements with the same sequence, including plasmids. In this research we studied the relationship between CRISPR/Cas systems and multidrug resistance in Escherichia coli . Methods: The presence of Type I-E and Type I-F CRISPR systems was investigated among 82 antimicrobial-susceptible and 96 MDR clinical E...
May 23, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28534836/differentiation-and-structure-in-sulfolobus-islandicus-rod-shaped-virus-populations
#8
Maria A Bautista, Jesse A Black, Nicholas D Youngblut, Rachel J Whitaker
In the past decade, molecular surveys of viral diversity have revealed that viruses are the most diverse and abundant biological entities on Earth. In culture, however, most viral isolates that infect microbes are represented by a few variants isolated on type strains, limiting our ability to study how natural variation affects virus-host interactions in the laboratory. We screened a set of 137 hot spring samples for viruses that infect a geographically diverse panel of the hyperthemophilic crenarchaeon Sulfolobus islandicus...
May 19, 2017: Viruses
https://www.readbyqxmd.com/read/28534435/genome-editing-technologies-and-patent-landscape-overview
#9
Fairouz Benahmed-Miniuk, Mat Kresz, Jitendra K Kanaujiya, Christopher D Southgate
Unlike with zinc finger nuclease and transcriptional activator-like effector nuclease DNA modification technologies that rely on lead proteins, developed through expensive and time-consuming processes, the clustered regularly interspaced short palindromic repeat (CRISPR)/Cas system has rapidly emerged as the most promising gene-editing technology to date for the modification of any selected DNA sequence. CRISPR is receiving tremendous fanfare due, in part, to its potential to provide a means to fundamentally alter medical genetics and especially cancer medicine...
May 23, 2017: Pharmaceutical Patent Analyst
https://www.readbyqxmd.com/read/28534256/crispr-cas9-mediated-correction-of-human-genetic-disease
#10
REVIEW
Ke Men, Xingmei Duan, Zhiyao He, Yang Yang, Shaohua Yao, Yuquan Wei
The clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated (Cas) protein 9 system (CRISPR/Cas9) provides a powerful tool for targeted genetic editing. Directed by programmable sequence-specific RNAs, this system introduces cleavage and double-stranded breaks at target sites precisely. Compared to previously developed targeted nucleases, the CRISPR/Cas9 system demonstrates several promising advantages, including simplicity, high specificity, and efficiency. Several broad genome-editing studies with the CRISPR/Cas9 system in different species in vivo and ex vivo have indicated its strong potential, raising hopes for therapeutic genome editing in clinical settings...
May 3, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28533980/mitochondrial-complex-i-deficiency-leads-to-the-retardation-of-early-embryonic-development-in-ndufs4-knockout-mice
#11
Mei Wang, Ya-Ping Huang, Han Wu, Ke Song, Cong Wan, A-Ni Chi, Ya-Mei Xiao, Xiao-Yang Zhao
BACKGROUND: The NDUFS4 gene encodes an 18-kD subunit of mitochondria complex I, and mutations in this gene lead to the development of a severe neurodegenerative disease called Leigh syndrome (LS) in humans. To investigate the disease phenotypes and molecular mechanisms of Leigh syndrome, the Ndufs4 knockout (KO) mouse has been widely used as a novel animal model. Because the homozygotes cannot survive beyond child-bearing age, whether Ndufs4 and mitochondrial complex I influence early embryonic development remains unknown...
2017: PeerJ
https://www.readbyqxmd.com/read/28532684/quantitative-determination-of-testosterone-levels-with-biolayer-interferometry
#12
Hao Zhang, Wei Li, Hong Luo, Guangming Xiong, Yuanhua Yu
Natural and synthetic steroid hormones are widely spread in the environment and are considered as pollutants due to their endocrine activities, even at low concentrations, which are harmful to human health. To detect steroid hormones in the environment, a novel biosensor system was developed based on the principle of biolayer interferometry. Detection is based on changes in the interference pattern of white light reflected from the surface of an optical fiber with bound biomolecules. Monitoring interactions between molecules does not require radioactive, enzymatic, or fluorescent labels...
May 19, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28532598/crispr-cpf1-a-new-tool-for-plant-genome-editing
#13
Syed Shan-E-Ali Zaidi, Magdy M Mahfouz, Shahid Mansoor
Clustered regularly interspaced palindromic repeats (CRISPR)-CRISPR-associated proteins (CRISPR-Cas), a groundbreaking genome-engineering tool, has facilitated targeted trait improvement in plants. Recently, CRISPR-CRISPR from Prevotella and Francisella 1 (Cpf1) has emerged as a new tool for efficient genome editing, including DNA-free editing in plants, with higher efficiency, specificity, and potentially wider applications than CRISPR-Cas9.
May 19, 2017: Trends in Plant Science
https://www.readbyqxmd.com/read/28527665/therapeutic-editing-of-hepatocyte-genome-in-vivo
#14
REVIEW
Marina Ruiz de Galarreta, Amaia Lujambio
The recent development of gene editing platforms enables making precise changes in the genome of eukaryotic cells. Programmable nucleases, such as meganucleases, zinc finger nucleases (ZFNs), transcription activator-like effector nucleases (TALENs), and clustered regularly interspaced short palindromic repeat (CRISPR)-associated nucleases, have revolutionized the way research is conducted as they facilitate the rapid production of mutant or knock-out cellular and animal models. These same genetic tools can potentially be applied to cure or alleviate a variety of diseases, including genetic diseases that lack an efficient therapy...
May 17, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28527285/-genetic-diversity-of-extraintestinal-escherichia-coli-strains-producers-of-beta-lactamases-tem-shv-and-ctx-m-associated-with-healthcare
#15
Yasmin Varela, Beatriz Millán, María Araque
INTRODUCTION: There are few reports from Venezuela describing the genetic basis that sustains the pathogenic potential and phylogenetics of Escherichia coli extraintestinal strains isolated in health care units. OBJECTIVE: To establish the genetic diversity of extraintestinal E. coli strains producers of betalactamases TEM, SHV and CTX-M associated with healthcare. MATERIALS AND METHODS: We studied a collection of 12 strains of extraintestinal E...
June 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28527117/non-viral-and-viral-delivery-systems-for-crispr-cas9-technology-in-the-biomedical-field
#16
REVIEW
Zhi-Yao He, Ke Men, Zhou Qin, Yang Yang, Ting Xu, Yu-Quan Wei
The clustered regularly interspaced short palindromic repeats (CRISPR)-associated protein 9 (CRISPR-Cas9) system provides a novel genome editing technology that can precisely target a genomic site to disrupt or repair a specific gene. Some CRISPR-Cas9 systems from different bacteria or artificial variants have been discovered or constructed by biologists, and Cas9 nucleases and single guide RNAs (sgRNA) are the major components of the CRISPR-Cas9 system. These Cas9 systems have been extensively applied for identifying therapeutic targets, identifying gene functions, generating animal models, and developing gene therapies...
May 2, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28523919/editing-plants-for-virus-resistance-using-crispr-cas
#17
J C Green, J S Hu
This minireview summarizes recent advancements using the clustered regularly interspaced palindromic repeats-associated nuclease systems (CRISPR-Cas) derived from prokaryotes to breed plants resistant to DNA and RNA viruses. The CRISPR-Cas system represents a powerful tool able to edit and insert novel traits into plants precisely at chosen loci offering enormous advantages to classical breeding. Approaches to engineering plant virus resistance in both transgenic and non-transgenic plants are discussed. Iterations of the CRISPR-Cas system, FnCas9 and C2c2 capable of editing RNA in eukaryotic cells offer a particular advantage for providing resistance to RNA viruses which represent the great majority of known plant viruses...
2017: Acta Virologica
https://www.readbyqxmd.com/read/28522157/antiviral-goes-viral-harnessing-crispr-cas9-to-combat-viruses-in-humans
#18
REVIEW
Jasper Adriaan Soppe, Robert Jan Lebbink
The clustered regularly interspaced short palindromic repeats (CRISPR) and CRISPR-associated (Cas) systems are RNA-guided sequence-specific prokaryotic antiviral immune systems. In prokaryotes, small RNA molecules guide Cas effector endonucleases to invading foreign genetic elements in a sequence-dependent manner, resulting in DNA cleavage by the endonuclease upon target binding. A rewired CRISPR/Cas9 system can be used for targeted and precise genome editing in eukaryotic cells. CRISPR/Cas has also been harnessed to target human pathogenic viruses as a potential new antiviral strategy...
May 15, 2017: Trends in Microbiology
https://www.readbyqxmd.com/read/28521637/the-receptor-like-cytoplasmic-kinase-bsr1-mediates-chitin-induced-defense-signaling-in-rice-cells
#19
Yasukazu Kanda, Naoki Yokotani, Satoru Maeda, Yoko Nishizawa, Takashi Kamakura, Masaki Mori
Broad-Spectrum Resistance 1 (BSR1) encodes a rice receptor-like cytoplasmic kinase, and enhances disease resistance when overexpressed. Rice plants overexpressing BSR1 are highly resistant to diverse pathogens, including rice blast fungus. However, the mechanism responsible for this resistance has not been fully characterized. To analyze the BSR1 function, BSR1-knockout (BSR1-KO) plants were generated using a clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated protein 9 (Cas9) system...
May 18, 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28515773/building-a-multipurpose-insertional-mutant-library-for-forward-and-reverse-genetics-in-chlamydomonas
#20
Xi Cheng, Gai Liu, Wenting Ke, Lijuan Zhao, Bo Lv, Xiaocui Ma, Nannan Xu, Xiaoling Xia, Xuan Deng, Chunlei Zheng, Kaiyao Huang
BACKGROUND: The unicellular green alga, Chlamydomonas reinhardtii, is a classic model for studying flagella and biofuel. However, precise gene editing, such as Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) and CRISPR-associated protein (Cas9) system, is not widely used in this organism. Screening of random insertional mutant libraries by polymerase chain reaction provides an alternate strategy to obtain null mutants of individual gene. But building, screening, and maintaining such a library was time-consuming and expensive...
2017: Plant Methods
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