
Sign up to save your podcasts
Or
We’re starting to get working gene therapies for single-mutation genetic disorders, and genetically modified cell therapies for attacking cancer.
Some of them use CRISPR-based gene editing, a new technology (that earned Jennifer Doudna and Emmanuelle Charpentier the 2020 Nobel Prize) to “cut” and “paste” a cell's DNA. But so far, the FDA-approved therapies can only edit one gene at a time.
What if we want to edit more genes? Why is that hard, and how close are we to getting there?
How CRISPR Works
CRISPR is based on a DNA-cutting enzyme (the Cas9 nuclease), a synthetic guide RNA (gRNA), and another bit of RNA (tracrRNA) that's complementary to the gRNA. Researchers can design whatever guide RNA sequence they want; the gRNA will stick to the complementary part of the target DNA, the tracrRNA will complex with it, and the nuclease will make a cut [...]
---
Outline:
(00:44) How CRISPR Works
(03:38) How Base and Prime Editors Work
(05:41) What About Bridge RNAs?
(06:09) Approaches to Multiplex Gene Editing
(09:39) Who's Doing Multiplex Gene Editing?
(11:46) Ok, What About Highly Polygenic Traits?
The original text contained 6 footnotes which were omitted from this narration.
---
First published:
Source:
Narrated by TYPE III AUDIO.
---
Images from the article:
Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
We’re starting to get working gene therapies for single-mutation genetic disorders, and genetically modified cell therapies for attacking cancer.
Some of them use CRISPR-based gene editing, a new technology (that earned Jennifer Doudna and Emmanuelle Charpentier the 2020 Nobel Prize) to “cut” and “paste” a cell's DNA. But so far, the FDA-approved therapies can only edit one gene at a time.
What if we want to edit more genes? Why is that hard, and how close are we to getting there?
How CRISPR Works
CRISPR is based on a DNA-cutting enzyme (the Cas9 nuclease), a synthetic guide RNA (gRNA), and another bit of RNA (tracrRNA) that's complementary to the gRNA. Researchers can design whatever guide RNA sequence they want; the gRNA will stick to the complementary part of the target DNA, the tracrRNA will complex with it, and the nuclease will make a cut [...]
---
Outline:
(00:44) How CRISPR Works
(03:38) How Base and Prime Editors Work
(05:41) What About Bridge RNAs?
(06:09) Approaches to Multiplex Gene Editing
(09:39) Who's Doing Multiplex Gene Editing?
(11:46) Ok, What About Highly Polygenic Traits?
The original text contained 6 footnotes which were omitted from this narration.
---
First published:
Source:
Narrated by TYPE III AUDIO.
---
Images from the article:
Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
26,420 Listeners
2,387 Listeners
7,893 Listeners
4,126 Listeners
87 Listeners
1,458 Listeners
9,040 Listeners
87 Listeners
390 Listeners
5,431 Listeners
15,216 Listeners
474 Listeners
121 Listeners
75 Listeners
459 Listeners