Stem cell therapy to correct heart failure in children could transform lives
Renowned visionary English physician William Harvey wrote in 1651 about how our blood contains all the secrets of life.“And so I conclude that blood lives and is nourished of itself and in no way depends on any other part of the body as being prior to it or more excellent,” he wrote.“So that from this we may perceive the causes not only of life in general … but also of longer or shorter life, of sleeping and waking, of skill, of strength and so forth.”Dr.
Kevin Watt, team leader of the Heart Regeneration and Disease Laboratory at the Murdoch Children’s Research Institute (MCRI) in Melbourne, Australia, understands this concept deeply. He lives it every day, as he and his fellow researchers study and reprogram the potential of the blood to treat disease, specifically heart failure in children.Building on the work of Dr.Shinya Yamanaka of Japan, who discovered that specialized cells could be reprogrammed back to immature stem cells, Watt and his collaborators have taken this work several steps further. They have used small molecules to turn these new stem cells from the blood into heart cells.Small heart organoids are developed in the lab — which can then be injected into the failing hearts of children. Relying on the philanthropic support of the Murdoch Institute, the work is progressing rapidly and has been shown to be effective already in mice, pigs and sheep.Clinical trials in humans will be starting soon, and as Dr.
Watt told me in an interview from Australia, “Large sheets of heart tissue will be stitched into the failing heart.”Congenital heart failure as well as side effects of chemotherapy in children will be targets for this miracle therapy.Millions of children around the world suffer daily from these conditions.Watt said that certain chemotherapy (anthracyclines) have a higher risk of heart failure – up to 15% of the time – and this treatment may be useful to protect the heart.Watt said, “Heart failure remains an urgent, unmet ...