Key points from article :
New technique called electroporation opens up microscopic pores in T-cells allowing Crispr/Cas9 enzymes to enter and replace exact sections of DNA with synthetic, healthy sequences.
Study has genetically-modified cells so they were no longer prone to attack by HIV virus.
Plan is to generate T-cells from a cancer to keep the disease in check.
The study was published in the Proceedings of the National Academy of Sciences.
