Conditioned medium of autologous or allogeneic progenitor cells for the treatment of angiogenesis

摘要

A therapeutic composition is provided that comprises a cell-free conditioned medium containing mixed secretion products of isolated angiogenic progenitor cells obtained from bone marrow, peripheral blood, or adipose tissue. The composition may additionally contain angiogenesis-promoting proteins obtained by transfecting the progenitors cells in culture with an angiogenesis promoting transgene. The composition is useful to promote angiogenesis when introduced into or adjacent to an ischemic site in a patient, such as in myocardium or peripheral limb. Methods are also provided for utilizing such cell-free conditioned medium to deliver angiogenesis-promoting proteins to a patient. The cell-free conditioned medium can also be injected into the blood stream for delivery to the ischemic tissue. The cells can derive from either an autologous or allogenic source and can be lyophilized or frozen for storage.