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Liu Y, Liu Y, Wang Q, Song Y, Chen S, Cheng B, Zhang Y, Cui Z, Wu Z, Zhu C. MIF inhibitor ISO-1 alleviates severe acute pancreatitis-associated acute kidney injury by suppressing the NLRP3 inflammasome signaling pathway. Int Immunopharmacol 2021; 96:107555. [PMID: 33823428 DOI: 10.1016/j.intimp.2021.107555] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 02/11/2021] [Accepted: 02/28/2021] [Indexed: 01/22/2023]
Abstract
BACKGROUND Acute kidney injury (AKI) is an important complication of severe acute pancreatitis (SAP) with a poor prognosis. The methyl ester of (S,R)-3-(4-hydroxyphenyl)-4,5-dihydro-5-isoxazole acetic acid (ISO-1), an inhibitor of macrophage migration inhibitory factor (MIF), has protective effects against many diseases. Our previous study confirmed MIF inhibition alleviated SAP. Here, we explored the effects of ISO-1 in an experimental mouse model of SAP-associated AKI induced by l-arginine. METHODS Mice were randomly divided into four treatment groups (n = 6 each): control (CON), SAP, SAP + ISO-1, and ISO-1. Histopathologic examination was used to observe damage in pancreatic and renal tissues. Biochemical and enzyme-linked immunosorbent assays (ELISA) kits were used to measure the serologic indicators amylase, lipase, creatinine, uric acid, interleukin (IL)-6, and tumor necrosis factor (TNF)-α. Immunohistochemistry was used to detect protein expression of NLRP3, ASC and caspase-1, and the infiltration of myeloperoxidase (MPO)-positive neutrophils in kidney tissue. Western blotting was used to detect NLRP3, ASC and caspase-1 and IL-1β protein expression, and real-time PCR was used to measure MIF, IL-6, TNF-α, IL-1β and IL-18 mRNA levels in kidney tissue. RESULTS ISO-1 treatment alleviated pathological damage in pancreatic and renal tissues, and reduced the serum levels of amylase, lipase, creatinine, uric acid, IL-6 and TNF-α. ISO-1 also reduced protein expression of NLRP3, ASC, caspase-1 and IL-1β, mRNA expression of MIF, IL-6, TNF-α, IL-1β and IL-18, and the infiltration of MPO-positive neutrophils in kidney tissue. CONCLUSION ISO-1 has a protective effect against experimental SAP-associated AKI. And the mechanism may be associated with ISO-1 inhibiting NLRP3 inflammasome signaling pathway.
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Affiliation(s)
- Yanyan Liu
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, No 1 Eastern Jianshe Road, Zhengzhou 450052, Henan, China; Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, China; Henan Key Laboratory of Emergency and Trauma Research Medicine, China
| | - Yanna Liu
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, No 1 Eastern Jianshe Road, Zhengzhou 450052, Henan, China; Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, China; Henan Key Laboratory of Emergency and Trauma Research Medicine, China
| | - Qiaofang Wang
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, No 1 Eastern Jianshe Road, Zhengzhou 450052, Henan, China; Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, China; Henan Key Laboratory of Emergency and Trauma Research Medicine, China
| | - Yaodong Song
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, No 1 Eastern Jianshe Road, Zhengzhou 450052, Henan, China; Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, China; Henan Key Laboratory of Emergency and Trauma Research Medicine, China
| | - Sanyang Chen
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, No 1 Eastern Jianshe Road, Zhengzhou 450052, Henan, China; Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, China; Henan Key Laboratory of Emergency and Trauma Research Medicine, China
| | - Bo Cheng
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, No 1 Eastern Jianshe Road, Zhengzhou 450052, Henan, China; Henan Key Laboratory of Emergency and Trauma Research Medicine, China
| | - Yan Zhang
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, No 1 Eastern Jianshe Road, Zhengzhou 450052, Henan, China; Henan Key Laboratory of Emergency and Trauma Research Medicine, China
| | - Zongchao Cui
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, No 1 Eastern Jianshe Road, Zhengzhou 450052, Henan, China; Henan Key Laboratory of Emergency and Trauma Research Medicine, China
| | - Zhongwei Wu
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, No 1 Eastern Jianshe Road, Zhengzhou 450052, Henan, China; Henan Key Laboratory of Emergency and Trauma Research Medicine, China
| | - Changju Zhu
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, No 1 Eastern Jianshe Road, Zhengzhou 450052, Henan, China; Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, China; Henan Key Laboratory of Emergency and Trauma Research Medicine, China.
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