Cardiac targeted delivery of cells
View Patent ↗A method of delivering cardiac stem cell and treating damaged cardiac tissue is provided. The method involves isolation of subject's cardiac circulation from the subject's systemic circulation and perfusing a solution comprising stem cells into the cardiac circuit.
1. A method of delivering a stem cell to a subject's heart, said method comprising the steps of:
(a) forming a cardiac circuit that isolates a subject's cardiac circulation from the subject's systemic circulation; and
(b) perfusing a solution comprising stem cells into the cardiac circuit in a retrograde direction.
2. The method according to claim 1 , wherein the stem cells are selected from the group consisting of hematopoetic stem cells and cardiac stem cells, satellite cells, myoblasts and other multipotent precursor cells.
3. The method according to claim 2 , wherein the cardiac stem cells are autologous cells expanded in culture from a biopsy taken from the subject.
4. The method according to claim 3 , wherein the biopsy is taken from the subject's ventricle or atrium.
5. The method according to claim 1 , wherein the stem cells are embryonic stem cells.
6. The method according to claim 1 , wherein the cell solution is recirculated in the cardiac circuit for up to 30 minutes.
7. The method according to claim 1 , wherein the subject's cardiac circulation is stopped to up to 10 minutes, thereby allowing the cell solution to dwell.
8. The method according to claim 7 , wherein the subject's cardiac circulation is restarted and a second solution is infused in the circuit for up to 20 minutes.
9. The method according to claim 8 , wherein the second solution is different from the first cellular solution.
10. A method of treating myocardiac infarction comprising the steps of:
(a) forming a cardiac circuit that isolates a subject's cardiac circulation from the subject's systemic circulation; and
(b) perfusing a solution comprising cardiac stem cells into the cardiac circuit in a retrograde direction.