A warm perfusion system that has the ability to support a tissue or organ at a near normal metabolic rate provides the mechanism not only for restored oxidative metabolism of the organ but for the delivery of cells, cell-based therapeutics, and growth and differentiation factors to a damaged tissue or organ. Subsequent to delivery of therapeutic cells, such as stem cells or progenitor cells, to the damaged organ, the cells can be prompted to grow, multiply and differentiate, thereby restoring damaged tissue.