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[Thermostable CRISPR/Cas9 genome editing system and its application in construction of cell factories with thermophilic bacteria: a review].
The diverse thermophilic strains of Thermoanaerobacter, serving as unique platforms with a broad range of application in biofuels and chemicals, have received wide attention from scholars and practitioners. Although biochemical experiments and genome sequences have been reported for a variety of Thermoanaerobacter strains, an efficient genetic manipulation system remains to be established for revealing the biosynthetic pathways of Thermoanaerobacter. In line with this demand, the clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated (Cas) systems for editing, regulating and targeting genomes have been well developed in thermophiles. Here, we reviewed and discussed the current status, associated challenges, and future perspectives of the construction of thermostable CRISPR/Cas9 genome editing systems for some representative Thermoanaerobacter species. The establishment, optimization, and application of thermostable CRISPR/Cas genome editing systems would potentially provide a foundation for further genetic modification of thermophilic bacteria.
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Alzheimer disease mice improve with CRISPR-Cas9 gene editing.
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Optimized protocol for gene editing in adipocytes using CRISPR-Cas9 technology.
We present a detailed protocol for gene editing in adipocytes using the CRISPR-Cas technology. This protocol describes sgRNA design, preparation of lentiCRISPR-sgRNA vectors, functional validation of sgRNAs, preparation of lentiviruses, and lentiviruses transduction in adipocytes. Moreover, an optimized method of gene editing using the lentiCRISPRv2 vector expressing two sgRNAs targeting two different genes has also been described. For complete details on the use and execution of this protocol, please refer to Qiu et al. (2020).
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Writing the Story of Gene Editing and CRISPR: An Interview with Kevin Davies, PhD.
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Gene editing: sloppy definitions mislead.
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From Origin to the Present: Establishment, Mechanism, Evolutions and Biomedical Applications of the CRISPR/Cas-Based Macromolecular System in Brief.
Advancements in biological and medical science are intricately linked to the biological central dogma. In recent years, gene editing techniques, especially CRISPR/Cas systems, have emerged as powerful tools for modifying genetic information, supplementing the central dogma and holding significant promise for disease diagnosis and treatment. Extensive research has been conducted on the continuously evolving CRISPR/Cas systems, particularly in relation to challenging diseases, such as cancer and HIV infection. Consequently, the integration of CRISPR/Cas-based techniques with contemporary medical approaches and therapies is anticipated to greatly enhance healthcare outcomes for humans. This review begins with a brief overview of the discovery of the CRISPR/Cas system. Subsequently, using CRISPR/Cas9 as an example, a clear description of the classical molecular mechanism underlying the CRISPR/Cas system was given. Additionally, the development of the CRISPR/Cas system and its applications in gene therapy and high-sensitivity disease diagnosis were discussed. Furthermore, we address the prospects for clinical applications of CRISPR/Cas-based gene therapy, highlighting the ethical considerations associated with altering genetic information. This brief review aims to enhance understanding of the CRISPR/Cas macromolecular system and provide insight into the potential of genetic macromolecular drugs for therapeutic purposes.
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How Dolly the sheep's legacy lives on: CRISPR cattle and cloned camels.
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AAV-Mediated Somatic Gene Editing for Cardiac and Skeletal Muscle in a Large Animal Model.
Here we describe a protocol to produce a recombinant adeno-associated viral vector (rAAV)-based system to deliver the CRISPR-Cas9 complex into porcine skeletal muscle and myocardial cells. We initially describe the genomic composition of the rAAV-CRISPR vectors used in our lab. Furthermore, we give a step-by-step instruction into the production of recombinant viral vectors with high yields and purity. Lastly we describe the minimally invasive injection regimes to target the myocardium in a pig.
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CRISPR 'cousin' put to the test in landmark heart-disease trial.
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A combinational CRISPR/Cas9 gene-editing approach can halt HIV replication and prevent viral escape.
HIV presents one of the highest evolutionary rates ever detected and combination antiretroviral therapy is needed to overcome the plasticity of the virus population and control viral replication. Conventional treatments lack the ability to clear the latent reservoir, which remains the major obstacle towards a cure. Novel strategies, such as CRISPR/Cas9 gRNA-based genome-editing, can permanently disrupt the HIV genome. However, HIV genome-editing may accelerate viral escape, questioning the feasibility of the approach. Here, we demonstrate that CRISPR/Cas9 targeting of single HIV loci, only partially inhibits HIV replication and facilitates rapid viral escape at the target site. A combinatorial approach of two strong gRNAs targeting different regions of the HIV genome can completely abrogate viral replication and prevent viral escape. Our data shows that the accelerating effect of gene-editing on viral escape can be overcome and as such gene-editing may provide a future alternative for control of HIV-infection.
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