Lung surface active protein and related polypeptides

摘要

Polypeptides consisting essentially of from about 10 to about 60 amino acid residues having alternating hydrophobic and hydrophilic amino acid residue regions are useful as pulmonary surfactants when admixed with a pharmaceutically acceptable phospholipid. The polypeptides may be represented by the formula (ZaUb)cZd, wherein: Z is a hydrophilic amino acid residue independently selected from R, D, E and K; U is a hydrophobic amino acid residue independently selected from V, I, L, C, Y and F; a has an average value of about 1 to about 5; b has an average value of about 3 to about 20; c is 1 to 10; and d is 0 to 3.y of