Key points from article :
Many cancers involving blood cells now treated by removing immune cells.
Then adding a gene that makes them target cancer cells and putting them back.
Virus, used to add a gene to make the immune cells target tumour protein.
CRISPR gene-edited immune cells injected into three people with advanced cancer.
Participants given just a dose of gene-edited cells.
Three genes, were deleted using CRISPR, patients survived for 9 months.
Trial won’t continue because its 2016 gene-editing technology is already outdated,
New CRISPR called base editing, to inactivate genes without cutting DNA.
There are many other ways to edit immune cells to make them more effective.
Research by University of Pennsylvania, published in Science.