I understand the trepidation, but I have to say that this is a very innovative way to let prospective parents who carry mitochondrial disease to have their own children, with their parental chromosomal genes, and just someone else’s mitochondrial DNA.
Mitochondrial proteins include those that are encoded by dna that is only found in the mitochondria, and proteins that are made by nuclear dna. This approach will only work for those mitochondrial diseases that are encoded by the relatively small amount of mitochondrial dna.
On the surface of this, I can’t see an objection to it; but there will be people who think it’s ‘satanic’ or otherwise horrible.
The children would not be their own: 1 + 1 + 1 = 3 parents' DNA.
Who knows what the long term consequences would be?
Are they able to target the mitochondrial DNA that precisely?