Expression of cloned genes in the lung by aerosol-and liposome-based delivery
First Claim
1. A method of introducing a DNA molecule into a cell of the proximal or distal airways of a mammal, which DNA molecule comprises expression regulatory elements operatively linked to a nucleotide sequence to be expressed in said cells, the steps of the method comprising administering an aerosolized composition comprising the lipid-DNA complex to the nasal or oral passages of the mammal, wherein the composition comprising the lipid-DNA complex is substantially free of macroaggregates, and whereby the lipid-DNA complex contacts the airway of the mammal and the DNA molecule is introduced into a cell of the airway, and the nucleotide sequence is expressed in the cell.
0 Assignments
0 Petitions
Accused Products
Abstract
Methods for the delivery of genes directly to the lungs are disclosed. Liposome-nucleic acid complexes are delivered via aerosol with the subsequent in viva expression of a protein encoded by the delivered gene. The invention provides a convenient method for treating pulmonary disorders, as well as for delivering substances systemically via the lung.
168 Citations
25 Claims
- 1. A method of introducing a DNA molecule into a cell of the proximal or distal airways of a mammal, which DNA molecule comprises expression regulatory elements operatively linked to a nucleotide sequence to be expressed in said cells, the steps of the method comprising administering an aerosolized composition comprising the lipid-DNA complex to the nasal or oral passages of the mammal, wherein the composition comprising the lipid-DNA complex is substantially free of macroaggregates, and whereby the lipid-DNA complex contacts the airway of the mammal and the DNA molecule is introduced into a cell of the airway, and the nucleotide sequence is expressed in the cell.
Specification