Making biological drug with spider silk protein


SCIENTISTS at Karolinska Insti-tutet in Sweden have managed to produce synthetic lung surfactant using DNA sequence derived from spider silk proteins.      Surfactant is a drug used to strengthen the lungs of premature babies by reducing the surface tension in their pulmo-nary alveoli (the structures in the lung that allow for respiration) and allowing them to be inflated at the moment of birth.