Lab scientists on Wednesday reported that for the first time they had
taken skin cells from patients who had suffered heart failure and
turned them into cells that could repair damaged cardiac muscle.
The technique has so far been tested on rats and it could take up to a
decade of problem-solving before trials can go ahead on humans, the
scientists cautioned.
Even so, it marks an important advance in the quest for replacement
cells to treat tissue affected by disease, said the scientists who
developed the technique in Israel.
The research uses a method called human-induced pluripotent stem
cells, or hiPSCs, a recently-discovered source that is viewed as an
exciting and less controversial research alternative to embryonic stem
cells.
It entails taking cells from a patient and introducing genes to the
cell nucleus. Helped by a chemical “cocktail,” these genes then act as
switches which reprogramme the cells back to their versatile, youthful
state.
The ultimate goal is that if a patient’s own cells are used as the
replenishment source, they will be recognised as friendly by the immune
system and not be attacked.
Recent studies have shown it is possible to derive hiPSCs from young
and healthy people and that these are capable of transforming into heart
cells.
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