I have now read a lot about genetic engineering and stem cell therapies the last couple of months. It seems to me that stem cell research might be missing a key step to make effective therapies for regenerating tissue inside the body (but I am not a scientist - just a guy enjoying reading about scientific progress). So maybe I am completely wrong.
In my opinion, stem cell treatments don't work well inside human bodies, because these stem cells need chemical instructions, and the instructions can only come from the adjacent body cells themselves. Now question is, how do we tell the body to give the stem cells chemical instructions - I think this is where gene therapy could come into play, where cells are manipulated to send out chemical instructions again, such as they used to when we all were foetuses.
I think that might be the key to eradicate all diseases and replace damaged tissue permanently.
What do you think? Does it make sense to combine these two sciences? And more importantly, if yes, why are scientists not joining up yet to create a stem cell gene therapy?