Tag: dCas9

CRISPR/Cas editing tools

Sponsored Content by GenScriptNov 16 2022Reviewed by Maria Osipova In a new application for CRISPR/Cas editing tools, researchers at Harvard Medical School, Boston, Massachusetts, have created a CRISPR/Cas9 ribonucleoprotein-based peptide display approach. This technique is hoped to simplify the peptide library analysis workflow by using a new technique called peptide immobilization…

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Cellular glycan modification by B3GAT1 broadly restricts influenza virus infection

Ethics statement All procedures involving laboratory mice were approved by the Duke University IACUC under the protocol numbers A189-18-08 and A142-21-07. Mice were housed with up to five mice per cage and the ambient room conditions ranged from 70–74 °F and 30–70% humidity with a 12-hour dark/light cycle. Animals were assessed…

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Scientists discover a technique to restore some diseased cells to their proper state

Scientists developed a novel screening methodology for identifying genes that regulate specific microglial functions that may contribute to Alzheimer’s disease (AD) in a recent article published inNature Neuroscience. Characterizing regulatory genes that cause microglia to shift from a healthy state to a diseased state, such as in the brains of…

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In vivo hypermutation and continuous evolution

Arnold, F. H. Design by directed evolution. Acc. Chem. Res. 31, 125–131 (1998). Google Scholar  Packer, M. S. & Liu, D. R. Methods for the directed evolution of proteins. Nat. Rev. Genet. 16, 379–394 (2015). Google Scholar  Drake, J. W., Charlesworth, B., Charlesworth, D. & Crow, J. F. Rates of…

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CRISPRi for specific inhibition of miRNA clusters and miRNAs with high sequence homology

Bartel, D. P. MicroRNAs: Target recognition and regulatory functions. Cell 136, 215–233 (2009). CAS  Article  Google Scholar  Bassett, A. R. et al. Understanding functional miRNA–target interactions in vivo by site-specific genome engineering. Nat. Commun. 5, 4640 (2014). ADS  CAS  Article  Google Scholar  Moore, M. J. et al. miRNA–target chimeras reveal…

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Parkinson’s disease motor symptoms rescue by CRISPRa-reprogramming astrocytes into GABAergic neurons

doi: 10.15252/emmm.202114797. Online ahead of print. Jessica Giehrl-Schwab #  1   2 , Florian Giesert #  1   2 , Benedict Rauser  1   2 , Chu Lan Lao  3   4 , Sina Hembach  1   2 , Sandrine Lefort  5 , Ignacio L Ibarra  6 , Christina Koupourtidou  3   7 , Malte Daniel Luecken  6 , Dong-Jiunn Jeffery…

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dCas9-VP64-Blasticidin SAM CRISPRa Helper Construct 1 Plasmid DNA

This product is a lentiviral plasmid that utilizes the EF1 alpha promoter to drive expression of dCas9-VP64 and blasticidin resistance cassette linked by a 2A peptide (EF1a-dCas9-VP64-2A-Blasticidin) allowing for easy selection following successful transfection or transduction. Use Sigma′s lentiviral dCas9-VP64 plasmid for generation of lentiviral particles and efficient production of…

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Novel CRISPR platform to decode the immune system

Date: 11th February 2022 The immune system is a critical biological network of processes that protects an organism from disease, and depends on the ability to distinguish self from non-self, a role driven by antigens.  In humans, T cells respond to antigen stimulation together with the production of cytokines however,…

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dCas9-VPR-mediated transcriptional activation of functionally equivalent genes for gene therapy

1. Dunbar, C. E. et al. Gene therapy comes of age. Science 359, eaan4672 (2018). PubMed Google Scholar  2. Wang, D., Tai, P. W. L. & Gao, G. Adeno-associated virus vector as a platform for gene therapy delivery. Nat. Rev. Drug Discov. 18, 358–378 (2019). CAS PubMed PubMed Central Google Scholar  3. Eid, A.,…

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A copper switch for inducing CRISPR/Cas9-based transcriptional activation tightly regulates gene expression in Nicotiana benthamiana.

Abstract CRISPR-based programmable transcriptional activators (PTAs) are used in plants for rewiring gene networks. Better tuning of their activity in a time and dose-dependent manner should allow precise control of gene expression. Here, we report the optimization of a Copper Inducible system called CI-switch for conditional gene activation in Nicotiana…

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New Techniques and Complex Models

CRISPR systems that rely on inactivated Cas enzymes—that is, dead Cas (dCas) enzymes—never looked more alive. They harness the targeting power associated with CRISPR—but not the double-strand cuts. As such, they give researchers new ways to interrogate and manipulate gene function. Possibilities include CRISPR interference (CRISPRi) and CRISPR activation (CRISPRa)…

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Industry Trends and Global Forecasts, 2021-2030

INTRODUCTION Clustered regularly interspaced short palindromic repeats (CRISPR) are a family of DNA sequences, which constitute a primitive immune system that is responsible for protecting prokaryotic cells from phage infections. New York, Aug. 24, 2021 (GLOBE NEWSWIRE) — Reportlinker.com announces the release of the report “CRISPR Based Therapeutics Market by…

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CRISPR-Based Tech Could Revolutionize Antibody-Based Diagnostics

Lead author, Karl Barber with a PICASSO microarray. [Karl Barber, Schmidt Science Fellows] Scientists have used an adaptation of the genome editing technology CRISPR to develop a new peptide display platform that can be used as a tool to identify antibodies in patient blood samples. Researchers from the Howard Hughes…

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