Yttrium oxide nanoparticles reduce the severity of acute pancreatitis caused by cerulein hyperstimulation

Publication date: Available online 6 March 2019Source: Nanomedicine: Nanotechnology, Biology and MedicineAuthor(s): Amit Khurana, Pratibha Anchi, Prince Allawadhi, Vinay Kumar, Nilofer Sayed, Gopinath Packirisamy, Chandraiah GoduguAbstractOxidative stress plays a major role in acute pancreatitis (AP), leading to massive macrophage infiltration. Nanoyttria (NY), possesses potent free radical scavenging activity. As reactive oxygen species and inflammation play major role in AP, we hypothesized that NY may alleviate cerulein induced AP. NY ameliorated LPS induced oxidative stress in vitro. It reduced ROS, superoxide radical generation and restored the mitochondrial membrane potential in macrophages. Interestingly, NY reduced plasma amylase and lipase levels and attenuated the mitochondrial stress and inflammatory markers. NY suppressed the recruitment of inflammatory cells around the damaged pancreatic acinar cells. Furthermore, NY intervention perturbed the course of AP via reduction of endoplasmic reticulum (ER) stress markers (BiP, IRE1 and Ero1-Lα), and molecular chaperones (Hsp27 and Hsp70). We, to the best of our knowledge, report for first time that NY can attenuate experimental AP by restoration of mitochondrial and ER homeostasis through Nrf2/NFκB pathway modulation.Graphical AbstractAcute pancreatitis is a major exocrine dysfunction of the pancreas with no clinically approved drugs available for therapy. Our study proves the role of nanoyttria (NY) in the ameliorati...

Source: Nanomedicine: Nanotechnology, Biology and Medicine - March 8, 2019 Category: Nanotechnology Source Type: research