Experiments were performed with 3×106 cells per implant. ECFC and transfected MSC were suspended in 200 μL of Matrigel and injected subcutaneously on the back of 6- to 7-week-old male athymic nu/nu mice.
A- ECFC co-implanted with transfected MSC (si control all-star negative control from Qiagen® or siVEGF-A from Santa Cruz Biotechnologies®) with or without treprostinil. Representative photographs of Matrigel explants at day 10 after injection
B- ECFC co-implanted with transfected MSC with or without treprostinil. Representative photographs of histological sections stained with H&E. Scale bar = 50 μm
C- Quantification of microvessel density as microvessels/mm2. Data are mean ± SEM.