body cell drugs Health injected needle TISSUE PATCHES Tissues

INJECTABLE TISSUE PATCHES COULD TRANSFORM SURGERY

The University of Toronto has spent years developing polymer
scafolds that can support the growth of human cells within the
body. However, there have been problems developing a way to get
them in the right place so they can help to heal damaged tissue and organs.
This month saw a breakthrough for the team: they have produced an
injectable bandage-like patch imbedded with heart muscle cells that
unfolds when leaving the needle. This could revolutionise the treatment of
organ damage.
Currently, a patient sufering from a damaged heart caused by a heart
attack will have to undergo a large, invasive surgery. But with an already
weakened heart this is often dangerous. The development of the injectable
patch means that we can start the healing process without the risks of heart
surgery on patients who are already weak. The patch is designed to break
down over time to allow space for the healthy tissue to grow.
It is expected that this invention will also be improved by the addition of
growth factors or drugs to encourage tissue regeneration. The patch has
been successful in rats and pigs, and researchers saw that the lab-grown
cardiac tissue worked functionally and wasn’t afected by being injected.
Even so, more research is needed before human clinical trials can start.

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