The CRISPR (clustered regularly interspaced short palindromic repeats)-based genome editing technology is an emerging RNA-guided nuclease system initially identified from the microbial adaptive immune systems. In recent years, the CRISPR system has been reprogrammed to target specific regions of the eukaryotic genome and has become a powerful tool for genetic engineering. Researchers have explored many
Early results suggest that prime editors are cleaner than CRISPR–Cas9 and more versatile than base editors, but many questions remain. A paper recently published in Nature from David Liu and co-workers discloses a ‘prime’ gene-editing system many years in the making. In principle, the system, comprising a catalytically impaired Cas9 enzyme and an engineered reverse transcriptase, may
The first ever analysis of all the tweets discussing Crispr gene-editing has revealed how the public feels about the technology. The findings suggest that over a six years public approval of gene-editing has cooled and that most people chatting about the technology are worried. Twitter offers researchers a vast amount of semi-structured data and provides direct access
Gene editing to correct genetic faults and removing the risk of hereditary diseases may soon become reality. Researchers have come up with a new gene editing technology that could help patients with sickle cell anaemia and up 89 percent of other genetic defects. This new technique is called the “prime editing” and is being developed
A California “human biohacking” bill calls for warnings on do-it-yourself genetic-engineering kits. Source Technology Review It’s going to be illegal in California to sell “gene-therapy kits” unless they carry a warning that says not to use them on yourself. Just one wrinkle: we’re not sure any such kit exists. Not yet, anyway. The consumer protection
Source http://www.liebertpub.com/ The CRISPR Journal announces the publication of its October 2019 Special Issue on The Ethics of Human Genome Editing. The Journal is led by Editor-in-Chief Rodolphe Barrangou, PhD (North Carolina State University) and Executive Editor Dr. Kevin Davies. For full-text copies of articles or to arrange interviews with Dr. Barrangou, Dr. Davies, authors, or
Source Technologynetworks Since the gene-editing potential of CRISPR systems was realized in 2013, they have been utilized in laboratories across the world for a wide variety of applications. When this gene-editing power is harnessed with the proliferative potential of stem cells, scientists level up their understanding of cell biology, human genetics and the future potential
Researchers have developed a new variant of the gene editing technique CRISPR-Cas9 that has the potential to increase precision during gene therapy in humans. The new variant reduced unintended changes in DNA compared to its wildtype, suggesting it could play a role in gene therapies that require high precision. The study by researchers from Karolinska
Source https://www.nature.com/articles/s41467-019-12281-8#Sec14 Highly specific Cas9 nucleases derived from SpCas9 are valuable tools for genome editing, but their wide applications are hampered by a lack of knowledge governing guide RNA (gRNA) activity. Here, we perform a genome-scale screen to measure gRNA activity for two highly specific SpCas9 variants (eSpCas9(1.1) and SpCas9-HF1) and wild-type SpCas9 (WT-SpCas9) in
Wake Forest Institute for Regenerative Medicine scientists have fine-tuned their delivery system to deliver a DNA editing tool to alter DNA sequences and modify gene function. The improved “hit and run” system works faster and is more efficient. “With this new method we are able to package together in one lentiviral capsid both essential components
