5 research outputs found
Multipotent adult progenitor cells sustain function of ischemic limbs in mice
Despite progress in cardiovascular research, a cure for peripheral vascular disease has not been found. We compared
the vascularization and tissue regeneration potential of murine and human undifferentiated multipotent
adult progenitor cells (mMAPC-U and hMAPC-U), murine MAPC-derived vascular progenitors (mMAPC-VP),
and unselected murine BM cells (mBMCs) in mice with moderate limb ischemia, reminiscent of intermittent
claudication in human patients. mMAPC-U durably restored blood flow and muscle function and stimulated
muscle regeneration, by direct and trophic contribution to vascular and skeletal muscle growth. This was in
contrast to mBMCs and mMAPC-VP, which did not affect muscle regeneration and provided only limited and
transient improvement. Moreover, mBMCs participated in a sustained inflammatory response in the lower
limb, associated with progressive deterioration in muscle function. Importantly, mMAPC-U and hMAPC-U also
remedied vascular and muscular deficiency in severe limb ischemia, representative of critical limb ischemia in
humans. Thus, unlike BMCs or vascular-committed progenitors, undifferentiated multipotent adult progenitor
cells offer the potential to durably repair ischemic damage in peripheral vascular disease patients
Multipotent adult progenitor cells sustain function of ischemic limbs in mice
Despite progress in cardiovascular research, a cure for peripheral vascular disease has not been found. We compared
the vascularization and tissue regeneration potential of murine and human undifferentiated multipotent
adult progenitor cells (mMAPC-U and hMAPC-U), murine MAPC-derived vascular progenitors (mMAPC-VP),
and unselected murine BM cells (mBMCs) in mice with moderate limb ischemia, reminiscent of intermittent
claudication in human patients. mMAPC-U durably restored blood flow and muscle function and stimulated
muscle regeneration, by direct and trophic contribution to vascular and skeletal muscle growth. This was in
contrast to mBMCs and mMAPC-VP, which did not affect muscle regeneration and provided only limited and
transient improvement. Moreover, mBMCs participated in a sustained inflammatory response in the lower
limb, associated with progressive deterioration in muscle function. Importantly, mMAPC-U and hMAPC-U also
remedied vascular and muscular deficiency in severe limb ischemia, representative of critical limb ischemia in
humans. Thus, unlike BMCs or vascular-committed progenitors, undifferentiated multipotent adult progenitor
cells offer the potential to durably repair ischemic damage in peripheral vascular disease patients