PT Journal AU Tauber, Z Cizkova, K Janikova, M Jurcikova, J Vitkova, K Pavliska, L Porubova, L Krauze, A Fernandez, C Jaluvka, F Spackova, I Lochman, I Prochazka, M Johnstone, B Prochazka, V TI Serum C-peptide level correlates with the course of muscle tissue healing in the rabbit model of critical limb ischemia SO Biomedical papers PY 2019 BP 132 EP 140 VL 163 IS 2 DI 10.5507/bp.2018.048 DE mesenchymal stem cells; tissue healing; cytokines; C-peptide; miR-126; critical limb ischemia AB Aim: The therapeutic potential of adipose-derived stem cell conditioned medium (ASC-CM) was studied in the rabbit model of critical limb ischemia (CLI). Methods: Rabbits received treatment with ASC-CM or placebo. Gastrocnemius muscle tissue was collected 35 days after ischemia induction. Ischemic changes were evaluated in hematoxylin-eosin stained tissues for early (necrotic lesions/granulation tissue) and late (fibrous scars) phases of tissue repair. The expression of proangiogenic miR-126 was also evaluated using in situ hybridization. The levels of cytokines, insulin, and C-peptide were measured in blood. Results: Early repair phases were observed more often in placebo-treated samples (45.5%) than in ASC-CM-treated ones (22.2%). However, the difference was not statistically significant. We demonstrated a statistically significant positive correlation between the early healing phases in tissue samples and C-peptide levels in peripheral blood. The expression of proangiogenic miR-126 was also shown in a number of structures in all phases of ischemic tissue healing. Conclusion: Based on our results, we believe that treatment with ASC-CM has the potential to accelerate the healing process in ischemic tissues in the rabbit model of CLI. The whole healing process was accompanied by miR-126 tissue expression. C-peptide could be used to monitor the course of the tissue healing process. ER