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Published on: September 15, 2023
Intramyocardial CD34+ cell transplantation combined with off-pump coronary artery bypass grafting
Hiroshi Nagamine1, Go Watanabe, Shintarou Shiobara
1Department of General and Cardiothoracic Surgery and Division of Transfusion Medicine, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan. hiroshi-nagamine@arion.ocn.ne.jp
Insights
This study introduces a novel therapy for severe ischemic heart disease, combining autologous bone marrow-derived CD34+ cells with coronary artery bypass grafting. This innovative approach demonstrated improved blood flow to damaged heart areas, promoting regeneration.
Area of Science:
- Cardiovascular Medicine
- Regenerative Medicine
- Cell Therapy
Background:
- Severe ischemic heart disease poses significant challenges, often involving areas not amenable to traditional bypass grafting.
- Autologous bone marrow-derived CD34+ cells, known to include endothelial progenitor cells, are being explored for therapeutic angiogenesis.
Observation:
- The study details the first case utilizing intramyocardial transplantation of CD34+ cells concurrently with off-pump coronary artery bypass grafting (CABG).
- The Isolex 300i magnetic cell selection system was employed to isolate CD34+ cells from bone marrow.
Findings:
- The combined therapy of off-pump CABG and CD34+ cell transplantation led to enhanced therapeutic angiogenesis and myocardial regeneration.
- Transplantation of autologous bone marrow-derived CD34+ cells significantly improved perfusion in the previously ungraftable ischemic regions of the heart.
Implications:
- This approach offers a promising new therapeutic strategy for patients with severe ischemic heart disease, particularly those with limited revascularization options.
- The findings support the potential of cell-based therapies in promoting cardiac repair and improving outcomes in ischemic heart conditions.
Abstract:
This report describes a new therapeutic approach for severe ischemic heart disease, intramyocardial transplantation of autologous bone marrow-derived CD34 + cells combined with off-pump coronary artery bypass grafting (CABG). CD34 is widely known as a cell surface antigen expressed on hematopoietic stem cells, and recent experimental studies have shown that CD34 + cells include endothelial progenitor cells. We used the Isolex 300i magnetic cell selection system to separate CD34 + cells from bone marrow cells. This report describes the first case treated with the combination of off-pump CABG and cell transplantation for therapeutic angiogenesis and myocardial regeneration. The transplantation of autologous bone marrow-derived CD34 + cells improved perfusion of the ungraftable ischemic area.
