Gene editing just learned to move bigger pieces of DNA.
A new lab method can place gene-sized DNA at targeted sites in human cells. No patients yet.
THE GENOME GOT A BIGGER TOOLBOX.
A new genome-editing approach called prime assembly gives researchers a way to install medium-to-large DNA changes at targeted sites in human cells, including cells that are not dividing.
WHAT HAPPENED
Published in Nature on September 16, prime assembly uses CRISPR-targeted dual-flap synthesis to assemble and integrate DNA fragments at chosen genomic sites. The researchers demonstrated exon recoding, transgene integration and very large genomic rearrangements, including at therapeutically relevant loci in primary human cells. This is still laboratory work: it has not been shown to be a safe or effective treatment in people, and delivery, efficiency and off-target effects remain practical hurdles.
WHY THIS IS HOPESLOP
The useful part is not another “gene editing will cure everything” headline. It is that the toolbox can now handle kinds of edits that were awkward or difficult before. Bigger genomic repairs became more programmable — still in the lab, but measurably so.
ORIGINAL SOURCENatureRead the original report
A DAILY ALLEGATION OF PROGRESS.
One good thing from the internet, every day. Nothing else.
MORE HOPESLOP
Major infrastructure proposals in England now have to deliver at least 10% biodiversity net gain.
The rule reaches projects such as major transport and energy proposals and requires significant gains to be secured for 30 years.
Anode-free sodium pouch cells retained about 80% capacity after 1,400 cycles in a lab study.
The research paired practical cathode loading with fast-rate, low-temperature and high-efficiency results—but it is not yet a commercial battery.
Mote's 2026 patrol documented 4,928 sea-turtle nests along 35 miles of Sarasota County beaches.
More than 300 volunteers helped survey the coast daily from mid-April through October, while 253 disorientation incidents showed the work still ahead.