Gelatinolytic activity of periprostatic (PP) adipose tissue and comparison with visceral pre-peritoneal fat depot. Analyses were performed in explants and stromal-vascular fraction primary culture of 21 samples of PP adipose tissue and 10 samples of VIS adipose tissue. Independent samples t-test was used. *** P < 0.0001 between explants and SVF fraction; * P < 0.05 in the comparison among fat depots. MMP, matrix metalloproteinase; VIS, visceral; PP, periprostatic; SVF, stromal-vascular fraction.