Human Bone Marrow Mesenchymal Stromal Cells Attenuate Tissue Injury and Reduce Inflammation in Experimental Acute Pancreatitis.

Acute pancreatitis (AP) which is distinguished by local pancreatic necrosis, followingby systemic organ failure is known as an inflammatory disease. Up to now, there are only a fewtreatment options accessible for patients suffering from AP. In this study, we aimed to examinethe anti-inflammatory capacities of human bone marrow-derived mesenchymal stromal cells(hBM-MSCs) in a detailed AP model experiment. AP was induced in C57BL/6 mice by intraperitoneal administration of cerulein (100μg/kg/h × 7 doses) at intervals of 1 hour. Then, 2×10 MSCs were infused in the AP mice bytail vein 6 hours after the last cerulein injection. Mice were sacrificed 12 hours following theinjection of hBM-MSC, and blood samples and pancreas tissues were obtained. We first determined the presence of transplanted hBM-MSC in the pancreas of micewith AP, but not the control mice. Our data indicate that administration of hBM-MSCs to micewith AP lead to (i) decreased serum levels of amylase, lipase and myeloperoxidase activities, (ii)downregulation of proinflammatory cytokine, macrophage inflammatory protein 2 (MIP-2), and(iii) upregulation of the anti-inflammatory cytokine, interleukin 10 (IL-10). Moreover, hBM-MSCadministration results in notably attenuated cerulein-induced histopathological alternationsand edema. we demonstrate that hBM-MSC attenuates AP signs and indicating that hMB-MSCtherapy could be a suitable approach for the treatment of inflammatory disease such as AP.