Therapeutic treatment with sustained-release platelet-rich plasma restores blood perfusion by augmenting ischemia-induced angiogenesis and arteriogenesis in diabetic mice

J Vasc Res. 2011;48(3):195-205. doi: 10.1159/000318779. Epub 2010 Nov 23.

Abstract

Objective: The objective of this investigation was to establish the effectiveness of sustained-release platelet-rich plasma (PRP) on perfusion and neovascularization in diabetic murine hind limb ischemia.

Methods: After surgery in streptozotocin-induced diabetic mice, the mice were randomly assigned to the following 4 experimental groups: control (C), 100 μl of the sustained-release form of platelet-poor plasma (PPP), 100 μl of the solution form of PRP (PRP-sol), and 100 μl of the sustained-release form of PRP (PRP-sr). Endpoint evaluations were: blood perfusion by laser Doppler perfusion imaging (LDPI), vascular density by anti-vWF, and mature vessel density by anti-smooth muscle actin antibody.

Results: This study demonstrated that a sustained release of PRP increases the perfusion of ischemic tissue as measured by LDPI (57 ± 12; 56 ± 9; 72 ± 7, and 98 ± 4 for the C, PPP, PRP-sol, and PRP-sr groups, respectively; p < 0.05), capillary density (151 ± 16; 158 ± 12; 189 ± 39, and 276 ± 39 for groups C, PPP, PRP-sol, and PRP-sr, respectively; p < 0.05), and mature vessel density (28 ± 2; 31 ± 3; 52 ± 10, and 85 ± 13 for the C, PPP, PRP-sol, and PRP-sr groups, respectively; p < 0.05).

Conclusion: A sustained release of PRP containing potent angiogenic growth factors restores blood perfusion by stimulating angiogenesis and arteriogenesis.

MeSH terms

  • Angiogenic Proteins / blood
  • Animals
  • Blood Glucose / metabolism
  • Capillaries / physiopathology*
  • Cell Line
  • Cell Proliferation
  • Delayed-Action Preparations
  • Diabetes Mellitus, Experimental / blood
  • Diabetes Mellitus, Experimental / complications*
  • Diabetes Mellitus, Experimental / physiopathology
  • Diabetic Angiopathies / blood
  • Diabetic Angiopathies / etiology
  • Diabetic Angiopathies / physiopathology
  • Diabetic Angiopathies / therapy*
  • Endothelial Cells / metabolism
  • Hindlimb
  • Immunohistochemistry
  • Intercellular Signaling Peptides and Proteins / blood
  • Ischemia / etiology
  • Ischemia / physiopathology
  • Ischemia / therapy*
  • Laser-Doppler Flowmetry
  • Male
  • Mice
  • Mice, Inbred C57BL
  • Muscle, Skeletal / blood supply*
  • Neovascularization, Physiologic*
  • Platelet-Rich Plasma / metabolism*
  • Random Allocation
  • Recovery of Function
  • Regional Blood Flow
  • Time Factors

Substances

  • Angiogenic Proteins
  • Blood Glucose
  • Delayed-Action Preparations
  • Intercellular Signaling Peptides and Proteins