Qiu Z, Yu P, Bai B, Hao Y, Wang S, Zhao Z, Hang Z, Wang Q, Guo M, Feng Q, Zhao Q. Regulatory B10 cells play a protective role in severe acute pancreatitis.
Inflamm Res 2016;
65:647-54. [PMID:
27085321 DOI:
10.1007/s00011-016-0947-9]
[Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 03/24/2016] [Accepted: 04/06/2016] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND
B10 cells are specific B cell subsets with the capacity of producing IL-10 to inhibit immune responses. Several studies have demonstrated that B10 cells are correlated with some immune and inflammatory diseases, such as experimental autoimmune encephalomyelitis (EAE), collagen-induced arthritis (CA), colitis and contact hypersensitivity. However, its role in severe acute pancreatitis (SAP) has not been clearly demonstrated yet.
PURPOSE
In this study, we show that B10 cells can inhibit inflammation of severe acute pancreatitis (SAP).
MATERIALS AND METHODS
Blood from 17 patients with SAP and 22 age-matched healthy volunteers were collected to detect the proportion of B10 cells. CD19-/- mice were used as B10 cell-deficient mice. Amylase and lipase levels, pancreatic edema and HE staining were tested to assess the severity of SAP.
RESULTS
CD19-/- mice, which lack B10 cells, suffered a more severe inflammation in pancreas compared with wild-type mice after caerulein injection. The frequency of B10 cells was decreased both in SAP patients and SAP animal models. Adoptive transfer of B10 cells ameliorates inflammatory injury of pancreatitis in CD19-/- mice.
CONCLUSION
Thus, we identified B10 cells as a protective factor for SAP and provided a novel target for SAP treatment.
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