Articles tagged with Crisprs
Researchers have developed a new CRISPR delivery system, CRISPR-Gold, that can repair the mutation causing Duchenne muscular dystrophy. The system achieves an 18-times-higher correction rate and improves muscle strength and agility in mice.
Plant geneticists have developed a new application of CRISPR technology to rapidly generate variants of crops that display improved traits. By mutating regulatory regions, the scientists can achieve subtle changes in yield traits, providing flexibility for improving crop yields. This method has the potential to break yield barriers and...
A research team has developed a method using modified CRISPR to find gene activators associated with autoimmune disorders. By targeting specific regions of the genome, they identified fundamental circuitry of diseases such as inflammatory bowel disease and Crohn's disease, providing new insights into their mechanisms.
Researchers used CRISPR to manipulate ant eggs, resulting in germline changes that affect every cell in the adult colony. The study found that knocking out the orco gene affected olfaction, social behavior, and brain anatomy, providing insights into gene regulation and its impact on complex biological systems.
Researchers at eGenesis have successfully produced the first PERV-free piglets using CRISPR technology, addressing safety concerns in xenotransplantation. The breakthrough demonstrates the potential of gene editing to prevent cross-species viral transmission and pave the way for safe human transplantable cells, tissues, and organs.
A new library of CRISPR targeting sequences enhances precision and efficacy, reducing off-target effects. The tool facilitates multiplexing and combinatorial targeting, improving gene editing outcomes.
Researchers discovered how Cas1-Cas2 proteins insert viral DNA into CRISPR region by relying on flexible Cas1 protein, IHF binding, and DNA bending, allowing proper storage of 'memories' of prior viral infections. This finding opens doors for modification of the proteins to redirect them to other sequences.
Researchers have developed a new CRISPR-based approach to store digital information in living cells, which can be used to record complex biological events and propagate information over time. The system encodes complex data, such as images and videos, into the genomes of bacteria, allowing for reconstruction of the original information.
Researchers at Cornell University and Harvard Medical School have observed the bacterial defense mechanism against invaders, revealing how CRISPR sites store molecular memories of invaders. The study provides structural data to improve CRISPR operations' efficiency and accuracy.
A Kyoto University team developed a genome-wide base-editing technology using the CRISPR Nickase system, which reduces inaccurate edits and improves editing accuracy. The system combines a guide RNA and Cas9 nickase to 'nick' the DNA double helix, resulting in faster generation of yeast mutants and increased precision.
Scientists at the University of Texas at Austin have developed a technique that can spot editing mistakes made by CRISPR, allowing for more precise gene therapies. The method involves rapidly testing a CRISPR molecule across a person's entire genome to foresee potential interactions.
Researchers describe for the first time the exact chain of events as the CRISPR complex loads target DNA and prepares it for cutting by the Cas3 enzyme. The study reveals a molecular redundancy that prevents unintended genomic damage, providing insights into ways to improve CRISPR-Cas systems for precision gene editing.
The CRISPR-Cpf1 gene editing system has been improved by incorporating a firefly gene, enabling the simultaneous targeting of multiple genes in human cells. This advance could be useful for treating diseases such as hepatitis B and muscular dystrophy.
The first commercial CRISPR product is expected to debut in 2020: a waxy corn used for paper glue and food thickeners. Researchers can use CRISPR to identify genes in crops that may be good candidates for editing, potentially leading to improved cotton quality, non-browning mushrooms, drought-resistant corn, and grocery store tomatoes.
A new study found that CRISPR-Cas9 gene editing can cause hundreds of unintended mutations, including single nucleotide changes and deletions in non-coding regions. The researchers emphasize the importance of using whole genome sequencing to detect off-target effects and encourage others to use this method for safer editing.
Researchers create a cellular model of Ewing sarcoma in human stem cells using CRISPR technology, enabling the study of mechanisms underlying the disease. The technique improves upon previous methods, increasing success rates by up to seven-fold and opening new avenues for cancer research and potential treatment.
Researchers have developed a new class of CRISPR enzymes that can detect specific sequences of RNA, including those from viruses. These enzymes, variants of Cas13a, target different RNA nucleotides, allowing for simultaneous viral diagnostics and potentially expanding the range of diseases they can detect.
Scientists at UC Riverside's Akbari lab have successfully created a strain of red-eyed mutant wasps using CRISPR gene-slicing technology. The goal is to better understand the biology of wasps and other insects to control pests that destroy crops or spread diseases like malaria.
Scientists have developed a way to track genes inside living cells, mapping their positions in three dimensions. This approach could lead to a better understanding of gene interactions and their effects on health, potentially leading to new treatments and cures for cancer and other genetic diseases.
Researchers have developed a highly sensitive diagnostic tool using RNA-targeting CRISPR enzyme for detecting diseases such as Zika virus and antibiotic-resistant bacteria. The new system, called SHERLOCK, can detect single molecules of target RNA or DNA, enabling rapid and affordable diagnosis.
Researchers discovered that microbes activate CRISPR systems early on in viral infections, capturing snippets of viral DNA to create a powerful defense. This early response enables microbes to recognize and attack subsequent viral infections more effectively.
Researchers have discovered how viruses disable CRISPR-Cas systems, a sophisticated defense mechanism against bacterial infections. Anti-CRISPR proteins lock down the system's ability to identify and attack viral DNA, making them 'exceptionally clever' evolutionary tools.
The ACS Kavli Lectures will discuss recent advances in understanding polymer networks and their innovations, as well as the inspiration of CRISPR systems for powerful genome engineering tools. These lectures aim to address open challenges in materials science and provide new insights into the design and application of materials.
Researchers at the National Eye Institute used CRISPR to rescue photoreceptors in mice, preserving daylight and color vision. The approach could lead to novel therapies for preventing vision loss from human diseases such as retinitis pigmentosa.
A new study successfully uses CRISPR-Cas9 to modify the genome of Methanosarcina acetivorans, an archaeal species, for the first time. This breakthrough enables accelerated studies on these organisms, with implications for understanding global climate change and the global carbon cycle.
Researchers have developed a new tool called CRISPETa, which allows for easy and efficient DNA deletion using CRISPR-Cas9. The software can design optimised pairs of sgRNAs for deleting specific regions of non-coding DNA.
A Rice University study models the dynamic evolution of the microbial immune system, revealing a three-region phase diagram where phages thrive or are driven to extinction. The study explains confusing CRISPR experimental results by highlighting the importance of encounter rates and mutation parameters.
The use of CRISPR-Cas9 gene editing technology is restricted due to competing claims over foundational patent rights. Exclusive licenses granted to spinoff companies formed by institutions and researchers could bottleneck the development of human therapeutics.
Despite breakthroughs in CRISPR technology, delivering the gene-editing tool directly into patients remains a challenge. Researchers are exploring multiple approaches to overcome the issue, and despite hurdles, the potential payoff is significant.
Researchers at UMass Amherst have designed a novel nanoparticle-based delivery system to enhance CRISPR/Cas9's treatment potential for genetic diseases. The new delivery method achieved an editing efficiency of about 30 percent in cultured cells, with successful nuclear delivery in approximately 90 percent of cells.
Researchers have successfully produced live cows with increased resistance to bovine tuberculosis using a modified version of CRISPR gene-editing technology. The new method resulted in no off-target effects on the animals' genetics, making it a promising approach for producing transgenic livestock.
Researchers using big data and CRISPR analyze the immune system's minute-by-minute response to viruses, revealing a step-by-step reaction. This approach provides crucial insights into how the body fights off infections.
A new screening method combining CRISPR genome editing with single-cell RNA sequencing enables the simultaneous analysis of thousands of genes in individual cells. This approach, called CROP-seq, allows researchers to study complex biological mechanisms and identify novel drug targets more efficiently than traditional methods.
UCSF researchers have identified anti-CRISPR proteins that can switch off the widely used CRISPR-Cas9 gene-editing system, reducing unintended edits and improving precision. The discovery has the potential to revolutionize CRISPR applications in both basic research and clinical settings.
Researchers have combined CRISPR gene editing with single-cell genomic profiling to understand nuanced cellular processes. The new technology enables precise manipulation of genes in individual cells, revealing previously unknown functions and advancing the field of genetic engineering.
Researchers have developed a new enzyme called TevCas9, which cuts DNA in two places instead of one, making it more difficult for DNA-repair to regenerate the site of the cut. This modification shows promise at being more specific in targeting genes and less likely to cause off-target effects.
Scientists have isolated three families of proteins that can turn off CRISPR-Cas9 systems specifically used for gene editing. This discovery offers a new strategy to prevent unintended changes in the genome, making gene editing more precise and controlled.
Researchers at UGA aim to expand and refine the use of CRISPR-Cas for research and biomedicine, particularly in combating pathogenic bacteria and diseases such as cancer and diabetes.
Duke researchers have successfully converted mouse fibroblasts into neuronal cells using a modified CRISPR technique. This breakthrough could lead to improved models for neurological disorders and personalized medicine. The study's findings suggest that the newly generated neurons retain their properties even after the CRISPR activator...
Researchers at IBS Center for Genome Editing demonstrate Cpf1's superior specificity in precision genome editing, generating mutant mice with targeted mutations. The study reveals that Cpf1 has virtually no off-target effects, opening up new possibilities for therapeutic treatments and agricultural products.
Researchers have characterized a new CRISPR system that targets RNA, enabling temporary changes to be made with greater specificity. This approach has the potential to accelerate progress in understanding, treating, and preventing disease by manipulating gene function more broadly.
Researchers have developed a new method called SLENDR that allows precise labeling of proteins in brain cells using CRISPR/Cas9. This enables scientists to study brain development and function with unprecedented accuracy, revealing previously undescribed behaviors of protein kinase C.
A team of researchers developed a CRISPR-based technique to rapidly identify gene variants, improving efforts to map genes and determine their function. The method induces mitotic recombination, allowing for detailed mapping of trait variants, as demonstrated by identifying a genetic mutation affecting yeast sensitivity to manganese.
Researchers have developed a new method to identify protospacer-adjacent motifs (PAMs) for CRISPR-Cas systems, which are crucial for unlocking the system's functionality. The tools allow for rapid identification of PAM sequences across various CRISPR-Cas systems, revealing that some systems have multiple PAMs of varying strength.
Five scientists, including Jennifer Doudna and Emmanuelle Charpentier, received the Warren Alpert Foundation Prize for their work on CRISPR, a powerful tool for rapidly determining gene function and democratizing gene editing. The discovery has enormous potential for developing new therapies, including treatments for genetic diseases.
Scientists have developed a process to improve the efficiency of CRISPR, allowing for greater consistency in deleting unwanted genes. By tweaking the sequence of single guide RNA, researchers achieved knockout efficiency of over 50% and hope to increase adoption of this technology.
Researchers from Montana State University and collaborators from Cornell and Johns Hopkins universities have made a breakthrough in understanding how bacteria's CRISPRs distinguish between self and non-self DNA. This discovery has significant implications for the development of novel technologies to treat genetic diseases.
MIT researchers have developed a way to deliver CRISPR genome repair components more efficiently and safely, correcting mutated genes in 6 percent of liver cells in mice. The new approach has the potential to treat a range of diseases, including metabolic disorders and liver conditions.
Researchers used CRISPR to repair a genetic mutation responsible for retinitis pigmentosa, an inherited condition causing blindness in at least 1.5 million cases worldwide. The study marks the first time researchers have replaced a defective gene associated with a sensory disease in stem cells derived from a patient's tissue.
Duke University researchers successfully treated an adult mouse model of Duchenne muscular dystrophy using CRISPR gene editing. The treatment involved delivering the gene-editing system directly to the affected tissues through a non-pathogenic carrier called adeno-associated virus, overcoming several delivery challenges.
The CRISPR genome editing technique has been hailed as a breakthrough due to its ability to deliver genes precisely, low cost, and ease of use. It has enabled the creation of gene drives, human embryo editing, and the deletion of retrovirus DNA in pig genomes.
Researchers at the John Innes Centre successfully edited genes in two UK crops using CRISPR technology. The edits were preserved in subsequent generations, allowing for the development of disease-resistant crops. Additionally, the study found that off-target edits occurred occasionally but could be minimized by using specific guide RNAs.
Researchers have developed a CRISPR system that can precisely turn on and off specific genomic regions, potentially revolutionizing the study of human diseases. This technique has shown exceptional specificity, enabling precise control over gene expression.
Researchers have grown mini-kidney organoids in a laboratory by combining stem cell biology with leading-edge gene-editing techniques. These engineered mini-kidneys contain tubules, filtering cells and blood vessel cells, and can mimic both healthy and diseased kidneys.
A new CRISPR-Cpf1 system offers a simpler approach to genome engineering with precise DNA cutting capabilities. The system, discovered by Feng Zhang and his colleagues, has potential to advance genetic engineering and cancer research.
Scientists have created a nanoscale vehicle made of DNA to shuttle the CRISPR-Cas9 gene-editing tool into cells. This 'nanoclew' ensures precise control over the dosage of editing, reducing unintended edits. The researchers successfully tested the system in cancer cell cultures and tumors in mice, achieving promising results.
Researchers at UGA have successfully edited the genome of a tree species using CRISPR/Cas technology, reducing lignin and condensed tannin concentrations by 20% and 50%, respectively. This breakthrough opens up new possibilities for rapid and reliable gene editing in plants.
Researchers discovered how bacteria differentiate between self and foreign DNA using the CRISPR system, which involves identifying rapidly replicating DNA and utilizing DNA repair processes to create immune memory.
A Broad Institute-MIT team has identified a highly efficient new Cas9 nuclease that overcomes the primary challenge to in vivo genome editing, expanding therapeutic and experimental applications of CRISPR. The new tool is expected to improve scientists' ability to screen for gene mutations and understand gene function using animal models.
Researchers at Walter and Eliza Hall Institute developed a new genome-editing technology to target and kill blood cancer cells. The CRISPR/Cas9 system was used to delete an essential gene for cancer cell survival, showing promise for treating human diseases arising from genetic errors.