Mesenchymal stem cells under hypoxia condition inhibit peritoneal adhesion by suppressing the prolonged release of interleukin-6

Abstract

<p><strong>Aim <br /></strong>To investigate the role of hypoxia-preconditioned mesenchymal stem cells (H-MSCs) in preventing peritoneal adhesion<br />by regulating IL-6 at days 6 and 12.<br /><strong>Methods</strong> <br />Twenty-four PAs rat model weighing 250 g to 300 g were randomly allocated into 4 groups: sham (Sh), control (C),<br />H-MSCs treatment group at dose 1.5 x 106  (T1) and 3 x 106 (T2). To induce H-MSCs, all MSCs population were incubated under hypoxia state (5% O2), 5% CO2, and 37o C for 24 hours. Expression level of IL-6 was performed using ELISA. Morphological appearance of adhesion was observed by visualizing the existence of adhesion formation in intestinal.<br /><strong>Results <br /></strong>In this study we found that there was a trend of decrease of IL-6 level on day 6 following MSCs treatments. Interestingly,<br />there was a significant decrease of IL-6 level on day 12 in all treatment groups. Also, no adhesion occurred in T2 group.<br /><strong>Conclusions</strong> <br />H-MSCs prevent PA development by suppressing the prolonged release of IL-6 at proliferation phase.</p>