Treatment of diseases by site-specific instillation of cells or site-specific transformation of cells and kits therefor
AssigneeThe Regents of the University of Michigan
InventorsElizabeth G. Nabel, Gary J. Nabel
Life of this patent
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Abstract
A method for the direct treatment towards the specific sites of a disease is disclosed. This method is based on the delivery of proteins by catheterization to discrete blood vessel segments using genetically modified or normal cells or other vector systems. Endothelial cells expressing recombinant therapeutic agent or diagnostic proteins are situated on the walls of the blood vessel or in the tissue perfused by the vessel in a patient. This technique, provides for the transfer of cells or vectors and expression of recombinant genes in vivo and allows the introduction of proteins of therapeutic or diagnostic value for the treatment of diseases.
Claims10
A kit for treating a disease in a patient in need thereof, comprising a catheter and a physiologically acceptable solution, wherein:
- (i) said catheter is adapted for insertion into a blood vessel and comprises a main catheter body having a balloon element, adapted to be inserted in said blood vessel and being expansible against the walls of said vessel so as to hold said main catheter body in place, and means carried by said main catheter body for delivering said solution into said blood vessel;
- (ii) said physiologically acceptable solution comprises DNA and at least one member selected from the group consisting of heparin, poly-L-lysine, polybrene, dextransulfate, a polycationic material, and bivalent antibodies.
A kit for treating a disease in a patient in need thereof, comprising
- (i) a catheter adapted for insertion into a blood vessel, comprising a main catheter body having a balloon element adapted to being inserted into said vessel and expansible against the walls of the said vessels so as to hold said main catheter body in place in said vessel and a means carried by said main catheter body for delivering a physiologically acceptable solution into said blood vessel;
- (ii) said physiologically acceptable solution which may contain an enzyme, mild detergent or lipid;
- and
- (iii) a means for causing a cell attached onto the walls of a vessel or in an organ or tissue in said patient to express an exogenous therapeutic agent protein, comprising a formulation adapted for delivery by said catheter for the transfer and uptake of RNA or DNA into said cell attached onto the walls of a vessel or in an organ or tissue in said patient.
Dependencies are inferred from the claim text.