CRISPR, crispr genome editing system - Part 7

GEN News Highlights: Illumina Invests in CRISPR Platform Developer Desktop Genetics

crispr cas investment
Illumina has made a strategic investment in Desktop Genetics (DTG) to advance DTG’s DESKGENgenome-editing software platform, the companies said today. The value of the investment was not disclosed. The investment will focus on integrating the platform with next-generation sequencing (NGS) technology, as well as improving CRISPR genome-editing workflows, Illumina and DTG said. DTG said it will combine Illumina’s investment with funds the software company recently raised from a syndicate of venture capitalists and angel investors. The combined funding is being used toward continued development and commercialization of DESKGEN and core CRISPR algorithms. DTG added that it will also use the funds toward expanding its sales effort and marketing efforts, both aimed at promoting adoption of its technology. DESKGEN is designed...
Read More..

Someone Will Eventually Use CRISPR to Try to Make a Dragon or Unicorn

Image: T. Cowart/Flickr The world’s top geneticists decided to spend the vast majority of last week discussing how to keep new genetic editing tools from ultimately destroying the human race. A noble goal, sure. But considerably less time has been spent discussing how genetically editing other species might change the idea of “nature” as we know it. A future where the gene editing technique CRISPR/Cas9 is used by DIY biologists,genetic engineering startups, and even artists create fanciful organisms straight out of sci-fi is not just possible—it’s likely, argue two of the country’s top bioethicists. “Why should we not expect dwarf elephants, giant guinea pigs, or genetically tamed tigers?” Hank Greely of Stanford School of Medicine and Alta Charo of the...
Read More..

A new edition of CRISPR promises to make gene therapy ready for human applications

award crispr1
Though much hyperbole has been used in connection with the gene-editing technology CRISPR, ironically, it may not be nearly enough. It’s difficult to overestimate the significance of a scientific innovation that augurs to fundamentally change what it means to be human. For this reason we at ExtremeTech have been keeping a close eye on developments connected with CRISPR, including a report last week from MIT Press that researchers at the Broad Institute of MIT and Harvard and the McGovern Institute for Brain Research had developed a way to significantly cut down on “off-target” editing errors when using this pioneering technology. Before diving into the science behind this new edition of CRISPR, let’s summarize what’s at stake: Imagine a world in which humans...
Read More..

CRISPR gene editing timeline

crispr image9
A powerful gene editing technique that first evolved in bacteria has been used in everything from flies to human embryos…. You may have seen the headlines about CRISPR/Cas9, a powerful genetic technique that lets scientists “edit” genes. It’s been hailed as a miracle method that will cure disease, and also as the nefarious technology that will bring about the era of “designer babies.” CRISPR, which stands for “clustered regularly interspaced short palindromic repeats,” is a defense mechanism that evolved in bacteria, but has been adapted for use in many other organisms, including humans. It functions like a genetic “find-and-replace” algorithm, letting scientists go in and edit genes inside living cells. But how did the technique come about? Here’s a timeline of...
Read More..

CRISPR Therapy in a Dish

Redirecting the gene-editing tool to modulate gene expression, researchers restore protein function in cells from a child with Duchenne muscular dystrophy. CRISPR is best known for its use in gene editing—slicing up base pairs to disable genes or correct genetic sequences. But by neutering the Cas9 nuclease typically involved in CRISPR, researchers can instead regulate the activity of a targeted gene. Using this approach, scientists have boosted levels of a protein in cells from a patient with a genetic disease called Duchenne muscular dystrophy (DMD). People with DMD, a severe neuromuscular disorder, don’t make the protein dystrophin. But its absence can be compensated for by utrophin, a cytoskeletal protein. So Ronald Cohn of the Hospital for Sick Children in Toronto...
Read More..

A parent whose child died tragically says a controversial technique could ‘save a lot of heartbreak’

Little Amalya only lived for an hour and 20 minutes. The child was born withanencephaly, a devastating and almost always fatal condition in which parts of the skull and brain to fail to develop. After Amalya died, his parents, Eric and Bethany Conkel, donated their son’s organs and body for medical research, with the aim of saving the lives of other children. And while it may not have helped Amalya, a promising new genetic tool that lets scientists cut and paste DNA could be used to replace defective genes in human embryos that cause some of the worst congenital disorders. Amalya’s illness, anencephaly, is what’s known as a neural tube defect. During the first month of pregnancy, the neural tube — which will...
Read More..

The First Ever In-Human Gene Editing Will Try and Combat Hemophilia

IN BRIEF Researchers at California’s Sangamo BioSciences are going to be the first to use the CRISPR genome editing techniques to tackle human ailments in a US FDA-approved study GENE EDITING AND THE TREATMENT OF HEMOPHILIA B The discovery of the CRISPR/Cas9 system forever changed our world, allowing scientists to quickly and efficiently edit DNA. Of course, we could edit DNA before; however, the methods were not terribly precise. And what is, perhaps, most notable about the CRISPR system is that it allows scientists to make their edits at a reasonable price. And in a world where scientific breakthroughs are largely determined by whether or not one is able to get funding for their research, the significance of affordable techniques simply cannot...
Read More..

WIth potential to save human lives, CRISPR already sparing mice

CRISPR, the new genome-editing tool, has already saved thousands of lives — but chances are you won’t meet any of the survivors. That’s because they’re lab mice. Scientists have been using dramatically fewer mice for each experiment since the advent of the groundbreaking technology. CRISPR, short for clustered regularly interspaced short palindromic repeats, allows researchers to cut and paste bits of DNA, almost as if they were words on a computer screen. And when geneticists first turned to CRISPR to create mice in 2013, they found that it provided a quicker, cheaper alternative to the traditional mouse-making technology. Whereas the old method, which relied on genetically engineered stem cells, could take as long as a year to produce a mouse...
Read More..

How to Find Your Mutated Cells After Using CRISPR Genome Editing

crispr image10
Once you’ve carried out CRISPR to generate mutations in your cells of interest, the next step is to identify those cells that have been successfully edited. Then, you can generate clonal populations of these cells, get on with the job of investigating the effect of the mutation, and, thus, trying to better understand the gene’s function. There are a few different ways to check for successful cleavage by the CRISPR-Cas and to look for mutations. I’m going to discuss some of the more popular ones – Surveyor nuclease/T7 Endonuclease I, Sequencing-based detection and restriction endonucleases. Surveyor/T7 Endonuclease I The most popular way to identify mutations is to use an enzyme, either“Surveyor®” nuclease or T7 endonuclease I. These two enzymes effectively...
Read More..

MIT, Broad scientists overcome key CRISPR-Cas9 genome editing hurdle

crispr image2
MIT, Broad scientists overcome key The following is adapted from a press release issued today by the Broad Institute. Researchers at the Broad Institute of MIT and Harvard and the McGovern Institute for Brain Research at MIT have engineered changes to the revolutionary CRISPR-Cas9 genome editing system that significantly cut down on “off-target” editing errors. The refined technique addresses one of the major technical issues in the use of genome editing. The CRISPR-Cas9 system works by making a precisely targeted modification in a cell’s DNA. The protein Cas9 alters the DNA at a location that is specified by a short RNA whose sequence matches that of the target site. While Cas9 is known to be highly efficient at cutting its...
Read More..