August 12, 2020

The Niche

Knoepfler lab stem cell blog

NgAgo controversy

2 min read

When potentially game changing new technologies are reported such as NgAgo gene editing, both scientists and the public get excited, but especially if such new reports stem from a single paper it is wise to take a cautious approach for a while. The key question is whether the new findings will turn out to be reproducible. With the case of NgAgo specifically, the Nature Biotechnology paper reporting potentially very desirable gene editing properties, drew a lot of interest. See archived blog posts on NgAgo here. …Read More

8 min read

By Gaetan Burgio CRISPR/Cas9 genome editing has dramatically changed our way to perform biological experiments. While highly efficient and easy to use, one limitation with CRISPR/Cas9 mediated genome editing technology is the occurrence of off-target effects and the restriction of the PAM recognition sequence. Many modifications from the original system have been proposed to improve its efficiency, specificity and to avoid off-target effects. Recently a new system based on the bacteria Natronobacterium gregory Argonaute (NgAgo) was proposed as a serious alternative to CRISPR/Cas9. NgAgo …Read More

2 min read

Does the new gene editing method NgAgo work or not? If not, what happened? The answers to both questions seem to depend on who you ask and what you read. As much as CRISPR has been the revolutionary in the genetic modification technology arena over past methods, could CRISPR itself in the next few years become obsolete having been replaced by other new technologies such as the upstart NgAgo? I doubt it. The odds for NgAgo making a run in this field may have …Read More