WASHINGTON (AFP) – US researchers said Wednesday they have identified for the first time human lung stem cells that are self-renewing and could offer important clues for treating chronic lung diseases. Previous studies have shown researchers were able to create lung cells using human embryonic stem cells, but this lung stem cell was isolated using surgical samples of adult human lung tissue. The discovery of this stem cell has the potential to offer those who suffer from chronic lung diseases a totally novel treatment option by regenerating or repairing damaged areas of the lung.
Stem cell therapy on lung diseases has long been elusive because the lung is a highly complex organ with a variety of cell types that can renew at different rates, experts say. Lung disease is the third leading killer in the United States after heart disease and cancer, according to the National Institutes of Health.
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