RESEARCHERS in Japan have succeeded in growing human kidney tissue from stem cells.
Kidneys have a complex structure that is not easily repaired once damaged. The breakthrough is a step towards helping a diseased or distressed organ fix itself.
Kenji Osafune of Kyoto University said on Wednesday his team had managed to take stem cells - the "blank slates" capable of being programmed to become any kind of cell in the body - and nudge them specifically in the direction of kidney tissue.
"It was a very significant step," he told AFP.
Osafune and his team created part of a urinary tubule, a small tube in the kidney used in the production of urine.
While the research was not aimed at growing an entire working kidney, he said it may provide a source of cells for regenerative therapy.
"I would say that we have arrived at the preliminary step on the road to the clinical level," he said.
Osafune's research is published in online science journal Nature Communications.
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