Fig. 2

In vitro patch characterization: cytokine release. (A) Cytokine expression profile measured by ELISA in supernatants of static and perfusion conditions at time of implantation (day 0) of hVEGF (Static: 4 biological samples for 3 SVF donors; Perfusion: 3 biological samples for 2 SVF donors, and 1 biological sample for 1 SVF donor); (B) IL-6 (Static: 2 samples for 1 SVF donor, 4 samples for 2 SVF donors; Perfusion: 2 samples for 1 SVF donor, 3 samples for 1 SVF donor and 4 samples for 1 SVF donor); (C) IL-12 (Static: 4 samples for 2 SVF donors, 2 samples for 2 SVF donors; Perfusion: detected in 2 samples for 2 SVF donors; (D) TNF-α; (E) IL-1β. For both (D) and (E) Static: 3 samples for 1 SVF donor and 2 samples for 2 SVF donors resulted negative; Perfusion: 3 samples for 3 SVF donors not detected (n.d.). Statistical analysis was performed using a nonparametric Mann–Whitney test (* p < 0.05)