Yixuan Xia1, Hai-Tao Xiao1, Kanglun Liu1, Hong-Jie Zhang1, Siu Wai Tsang1,2. 1. School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China. 2. Institute of Research and Continuing Education, Hong Kong Baptist University Shenzhen Research Center, Shenzhen, China.
Abstract
SCOPE: Resveratrol is generally considered beneficial to health-span and longevity since this dietary stilbenoid has been scrutinized for its activating property on the "rescue gene" sirtuin-1 that promotes cellular survival under stress. In addition to its antiaging property, our previous in vitro studies revealed that resveratrol notably inhibits the production of extracellular matrix (ECM) proteins in pancreatic stellate cells (PSCs), the classic effector cells against pancreatic injury. OBJECTIVE: We aim to extrapolate resveratrol intervention to the management of fibrogenesis in mice with chronic pancreatitis. METHODS AND RESULTS: C57/BL6 mice are given repetitive injections of cerulein (50 μg kg-1 h-1 ) for 6 weeks for the induction of chronic pancreatitis. We demonstrate that the oral administration of resveratrol (20 mg kg-1 d-1 ) effectively attenuated PSC activation, ECM deposition, fibrogenesis, and acinar atrophy in the pancreatitic parenchyma of cerulein-induced mice, as the damage index score was improved by 45.5%. The enhanced cell survival and preserved acinar integrity by resveratrol plausibly involves a perpetuated nuclear accumulation of Mist1 and a negative modulation of the Akt and p38 MAPK pathways. CONCLUSION: We suggest that resveratrol is potentially a nutraceutical for the mitigations of pancreatic fibrosis in chronic pancreatitis for which no effective therapeutic measure is currently available.
SCOPE: Resveratrol is generally considered beneficial to health-span and longevity since this dietary stilbenoid has been scrutinized for its activating property on the "rescue gene" sirtuin-1 that promotes cellular survival under stress. In addition to its antiaging property, our previous in vitro studies revealed that resveratrol notably inhibits the production of extracellular matrix (ECM) proteins in pancreatic stellate cells (PSCs), the classic effector cells against pancreatic injury. OBJECTIVE: We aim to extrapolate resveratrol intervention to the management of fibrogenesis in mice with chronic pancreatitis. METHODS AND RESULTS: C57/BL6 mice are given repetitive injections of cerulein (50 μg kg-1 h-1 ) for 6 weeks for the induction of chronic pancreatitis. We demonstrate that the oral administration of resveratrol (20 mg kg-1 d-1 ) effectively attenuated PSC activation, ECM deposition, fibrogenesis, and acinar atrophy in the pancreatitic parenchyma of cerulein-induced mice, as the damage index score was improved by 45.5%. The enhanced cell survival and preserved acinar integrity by resveratrol plausibly involves a perpetuated nuclear accumulation of Mist1 and a negative modulation of the Akt and p38 MAPK pathways. CONCLUSION: We suggest that resveratrol is potentially a nutraceutical for the mitigations of pancreatic fibrosis in chronic pancreatitis for which no effective therapeutic measure is currently available.