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Huang Q, Liu JW, Dong HB, Wei ZJ, Liu JZ, Ren YT, Jiang X, Jiang B. Mesenteric adipose tissue B lymphocytes promote intestinal injury in severe acute pancreatitis by mediating enteric pyroptosis. Hepatobiliary Pancreat Dis Int 2024; 23:300-309. [PMID: 38057185 DOI: 10.1016/j.hbpd.2023.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 11/17/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND Visceral adipose tissue (VAT) has been linked to the severe acute pancreatitis (SAP) prognosis, although the underlying mechanism remains unclear. It has been reported that pyroptosis worsens SAP. The present study aimed to verify whether mesenteric adipose tissue (MAT, a component of VAT) can cause secondary intestinal injury through the pyroptotic pathway. METHODS Thirty-six male Sprague Dawley (SD) rats were divided into six different groups. Twelve rats were randomly divided into the SAP and control groups. We monitored the changes of MAT and B lymphocytes infiltration in MAT of SAP rats. Twelve SAP rats were injected with MAT B lymphocytes or phosphate buffer solution (PBS). The remaining twelve SAP rats were first injected with MAT B lymphocytes, and then with MCC950 (NLRP3 inhibitor) or PBS. We collected blood and tissue samples from pancreas, gut and MAT for analysis. RESULTS Compared to the control rats, the SAP group showed inflammation in MAT, including higher expression of tumor necrosis factor (TNF-α) and interleukin-6 (IL-6), lower expression of IL-10, and histological changes. Flow cytometry analysis revealed B lymphocytes infiltration in MAT but not T lymphocytes and macrophages. The SAP rats also exhibited intestinal injury, characterized by lower expression of zonula occludens-1 (ZO-1) and occludin, higher levels of lipopolysaccharide and diamine oxidase, and pathological changes. The expression of NLRP3 and n-GSDMD, which are responsible for pyroptosis, was increased in the intestine of SAP rats. The injection of MAT B lymphocytes into SAP rats exacerbated the inflammation in MAT. The upregulation of pyroptosis reduced tight junction in the intestine, which contributed to the SAP progression, including higher inflammatory indicators and worse histological changes. The administration of MCC950 to SAP + MAT B rats downregulated pyroptosis, which subsequently improved the intestinal barrier and ameliorated inflammatory response of SAP. CONCLUSIONS In SAP, MAT B lymphocytes aggravated local inflammation, and promoted the injury to the intestine through the enteric pyroptotic pathway.
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Affiliation(s)
- Qing Huang
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Jia-Wen Liu
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Hai-Bin Dong
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Zheng-Jie Wei
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Jin-Zhe Liu
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Yu-Tang Ren
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Xuan Jiang
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China.
| | - Bo Jiang
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
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Starr MC, Barreto E, Charlton J, Vega M, Brophy PD, Ray Bignall ON, Sutherland SM, Menon S, Devarajan P, Akcan Arikan A, Basu R, Goldstein S, Soranno DE. Advances in pediatric acute kidney injury pathobiology: a report from the 26th Acute Disease Quality Initiative (ADQI) conference. Pediatr Nephrol 2024; 39:941-953. [PMID: 37792076 PMCID: PMC10817846 DOI: 10.1007/s00467-023-06154-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 08/08/2023] [Accepted: 08/29/2023] [Indexed: 10/05/2023]
Abstract
BACKGROUND In the past decade, there have been substantial advances in our understanding of the pathobiology of pediatric acute kidney injury (AKI). In particular, animal models and studies focused on the relationship between kidney development, nephron number, and kidney health have identified a number of heterogeneous pathophysiologies underlying AKI. Despite this progress, gaps remain in our understanding of the pathobiology of pediatric AKI. METHODS During the 26th Acute Disease Quality Initiative (ADQI) Consensus conference, a multidisciplinary group of experts discussed the evidence and used a modified Delphi process to achieve consensus on recommendations for opportunities to advance translational research in pediatric AKI. The current state of research understanding as well as gaps and opportunities for advancement in research was discussed, and recommendations were summarized. RESULTS Consensus was reached that to improve translational pediatric AKI advancements, diverse teams spanning pre-clinical to epidemiological scientists must work in concert together and that results must be shared with the community we serve with patient involvement. Public and private research support and meaningful partnerships with adult research efforts are required. Particular focus is warranted to investigate the pediatric nuances of AKI, including the effect of development as a biological variable on AKI incidence, severity, and outcomes. CONCLUSIONS Although AKI is common and associated with significant morbidity, the biologic basis of the disease spectrum throughout varying nephron developmental stages remains poorly understood. An incomplete understanding of factors contributing to kidney health, the diverse pathobiologies underlying AKI in children, and the historically siloed approach to research limit advances in the field. The recommendations outlined herein identify gaps and outline a strategic approach to advance the field of pediatric AKI via multidisciplinary translational research.
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Affiliation(s)
- Michelle C Starr
- Department of Pediatrics, Division of Nephrology, Indiana University School of Medicine, Riley Hospital for Children, 1044 W. Walnut Street, Indianapolis, IN, 46202, USA
- Pediatric and Adolescent Comparative Effectiveness Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Erin Barreto
- Department of Pharmacy, Mayo Clinic, Rochester, MN, USA
| | - Jennifer Charlton
- Department of Pediatrics, Division of Nephrology, University of Virginia, Charlottesville, VA, USA
| | - Molly Vega
- Renal and Apheresis Services, Texas Children's Hospital, Houston, TX, USA
| | - Patrick D Brophy
- Department of Pediatrics, Golisano Children's Hospital, University of Rochester, Rochester, NY, USA
| | - O N Ray Bignall
- Department of Pediatrics, Division of Nephrology and Hypertension, Nationwide Children's Hospital and The Ohio State University College of Medicine, Columbus, OH, USA
| | - Scott M Sutherland
- Department of Pediatrics, Division of Nephrology, Stanford University School of Medicine, Stanford, CA, USA
| | - Shina Menon
- Division of Pediatric Nephrology, Seattle Children's Hospital and University of Washington, Seattle, WA, USA
| | - Prasad Devarajan
- Department of Pediatrics, Division of Nephrology and Hypertension, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
| | - Ayse Akcan Arikan
- Department of Pediatrics, Divisions of Critical Care and Nephrology, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
| | - Rajit Basu
- Department of Pediatrics, Division of Critical Care, Northwestern University, Chicago, IL, USA
| | - Stuart Goldstein
- Department of Pediatrics, Division of Nephrology and Hypertension, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
| | - Danielle E Soranno
- Department of Pediatrics, Division of Nephrology, Indiana University School of Medicine, Riley Hospital for Children, 1044 W. Walnut Street, Indianapolis, IN, 46202, USA.
- Department of Bioengineering, Purdue University, West Lafayette, IN, USA.
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Li H, Wu D, Zhang H, Li P. New insights into regulatory cell death and acute pancreatitis. Heliyon 2023; 9:e18036. [PMID: 37519748 PMCID: PMC10372241 DOI: 10.1016/j.heliyon.2023.e18036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 07/01/2023] [Accepted: 07/05/2023] [Indexed: 08/01/2023] Open
Abstract
Acute pancreatitis (AP) may be associated with both local and systemic complications. Although it is usually self-limiting, up to 20% of patients develop severe acute pancreatitis (SAP), which leads to systemic inflammatory response syndrome (SIRS) and multiorgan dysfunction and failure affecting the lung, kidney, liver and heart. Patients who survive the condition frequently develop devastating long-term consequences such as diabetes mellitus, exocrine pancreatic insufficiency, chronic pancreatitis (CP) and poor quality of life. A lack of specific targeted treatments is the main reason for high mortality and morbidity, indicating that more research on the pathogenesis of AP is needed. In the past decade, substantial advancements have been made in our understanding of the pathophysiological mechanisms of AP, including mechanisms of calcium-mediated acinar cell injury and death, the cytoprotective role of the unfolded protein response (UPR) and autophagy in preventing sustained endoplasmic reticulum stress (ERs); however, the mechanism of parenchymal cell death is relatively poorly understood. This paper reviews the research progress of the regulatory cell death (RCD) mode in the pathogenesis of AP, providing some new insights and regulatory targets for the pathogenesis and treatment of AP, facilitating better targeted drug development.
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Al Mamun A, Suchi SA, Aziz MA, Zaeem M, Munir F, Wu Y, Xiao J. Pyroptosis in acute pancreatitis and its therapeutic regulation. Apoptosis 2022; 27:465-481. [PMID: 35687256 DOI: 10.1007/s10495-022-01729-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/18/2022] [Indexed: 12/20/2022]
Abstract
Pyroptosis defines a new type of GSDMs-mediated programmed cell death, distinguishes from the classical concepts of apoptosis and necrosis-mediated cell death and is prescribed by cell swelling and membrane denaturation, leading to the extensive secretion of cellular components and low-grade inflammatory response. However, NLRP3 inflammasome activation can trigger its downstream inflammatory cytokines, leading to the activation of pyroptosis-regulated cell death. Current studies reveal that activation of caspase-4/5/11-driven non-canonical inflammasome signaling pathways facilitates the pathogenesis and progression of acute pancreatitis (AP). In addition, a large number of studies have reported that NLRP3 inflammasome-dependent pyroptosis is a crucial player in driving the course of the pathogenesis of AP. Excessive uncontrolled GSDMD-mediated pyroptosis has been implicated in AP. Therefore, the pyroptosis-related molecule GSDMD may be an independent prognostic biomarker for AP. The present review paper summarizes the molecular mechanisms of pyroptotic signaling pathways and their pathophysiological impacts on the progress of AP. Moreover, we briefly present some experimental compounds targeting pyroptosis-regulated cell death for exploring novel therapeutic directions for the treatment and management of AP. Our review investigations strongly suggest that targeting pyroptosis could be an ideal therapeutic approach in AP.
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Affiliation(s)
- Abdullah Al Mamun
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Zhejiang Province, Wenzhou, 325035, China
| | - Suzia Aktar Suchi
- Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju, 501759, South Korea
| | - Md Abdul Aziz
- Department of Pharmacy, Faculty of Pharmacy and Health Sciences, State University of Bangladesh, Dhaka, 1205, Bangladesh.,Laboratory of Pharmacogenomics and Molecular Biology, Department of Pharmacy, Noakhali Science and Technology University, Noakhali, 3814, Bangladesh
| | - Muhammad Zaeem
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Zhejiang Province, Wenzhou, 325035, China
| | - Fahad Munir
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang Province, Wenzhou, 325000, China
| | - Yanqing Wu
- Institute of Life Sciences, Wenzhou University, Zhejiang Province, Wenzhou, 325035, China
| | - Jian Xiao
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Zhejiang Province, Wenzhou, 325035, China. .,Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang Province, Wenzhou, 325035, China.
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Hong XX, Wang HY, Yang JM, Lin BF, Min QQ, Liang YZ, Huang PD, Zhong ZY, Guo SJ, Huang B, Xu YF. Systemic injury caused by taurocholate‑induced severe acute pancreatitis in rats. Exp Ther Med 2022; 24:468. [PMID: 35747153 PMCID: PMC9204573 DOI: 10.3892/etm.2022.11395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 05/13/2022] [Indexed: 11/06/2022] Open
Affiliation(s)
- Xin-Xin Hong
- Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong 518033, P.R. China
| | - Hong-Yan Wang
- Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong 518033, P.R. China
| | - Jiong-Ming Yang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Bao-Fu Lin
- Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong 518033, P.R. China
| | - Qin-Qin Min
- Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong 518033, P.R. China
| | - Yi-Zhong Liang
- Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong 518033, P.R. China
| | - Pei-Di Huang
- Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong 518033, P.R. China
| | - Zi-You Zhong
- Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong 518033, P.R. China
| | - Shao-Ju Guo
- Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong 518033, P.R. China
| | - Bin Huang
- Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong 518033, P.R. China
| | - Yi-Fei Xu
- Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong 518033, P.R. China
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Aala J, Harchegani AB, Monsef HA, Mohsenifar Z, Ebrahimi P, Parvizi MR. N-Acetyl cysteine mitigates histopathological changes and inflammatory genes expressions in the liver of cadmium exposed rats. Environ Anal Health Toxicol 2021; 36:e2021024-0. [PMID: 34711021 PMCID: PMC8850162 DOI: 10.5620/eaht.2021024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 09/23/2021] [Indexed: 11/11/2022] Open
Abstract
This study aimed to consider the expression of Nrf2, NLRP3 and caspase 1 genes, as well as oxidative stress, and the protective role of N-acetyl cysteine (NAC) in the liver of rats treated with cadmium (Cd). Male rats were randomly divided into five groups including G1 (control), G2 (single dose of Cd), G3 (continuous dose of Cd), G4 (single dose of Cd + NAC), and G5 (continuous dose of Cd + NAC). Levels of malondialdehyde (MDA) and total antioxidant capacity (TAC) were measured. Expression of Nrf2, NLRP3 and caspase 1 genes was considered using RT-PCR. NAC treatments significantly improved TAC, but decreased MDA values in rats that exposed to continuous dose of Cd (p<0.05). Exposure to continuous dose of Cd caused a significant decrease in Nrf2 expression by 2.46-fold (p<0.001), but enhanced expression of NLRP3 and Caspase 1 genes by 3.13-fold and 3.16-fold), respectively (p<0.001). Compared to rats that treated to continuous dose of Cd, NAC supplementation enhanced the expression of Nrf2 by 1.67-fold (p<0.001) and reduced the expression of NLRP3 and Caspase 1 genes by 1.39-fold (p<0.001) and 1.58-fold (p<0.001), respectively. Down-regulation of Nrf2 and overexpression of NLRP3 and caspase 1 seems to be one of the main mechanisms of Cd toxicity on liver tissue. NAC protects liver tissue against Cd-induced oxidative injuries via enhancement of Nrf2 expression and reduction of NLRP3 and caspase 1 genes.
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Affiliation(s)
- Jalal Aala
- Department of Physiology, Faculty of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Asghar Beigi Harchegani
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hanieh Akhlaghi Monsef
- Department of Genetics, Faculty of New Sciences, Medical Science Branch, Islamic Azad University, Tehran, Iran
| | - Zhaleh Mohsenifar
- Ayatollah Taleghani Educational Hospital, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Pirooz Ebrahimi
- University Scientific Education and Research Network, Tehran, Iran
| | - Mohammad Reza Parvizi
- Department of Physiology, Faculty of Medicine, AJA University of Medical Sciences, Tehran, Iran
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Hu J, Zhang YM, Miao YF, Zhu L, Yi XL, Chen H, Yang XJ, Wan MH, Tang WF. Effects of Yue-Bi-Tang on water metabolism in severe acute pancreatitis rats with acute lung-kidney injury. World J Gastroenterol 2020; 26:6810-6821. [PMID: 33268963 PMCID: PMC7684462 DOI: 10.3748/wjg.v26.i43.6810] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 08/07/2020] [Accepted: 08/25/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The complications acute lung injury and acute kidney injury caused by severe inflammation are the main reasons of high mortality of severe acute pancreatitis (SAP). These two complications can both lead to water metabolism and acid-base balance disorders, which could act as additional critical factors affecting the disease trend. Aquaporins (AQPs), which can regulate the transmembrane water transport, have been proved to participate in the pathophysiological process of SAP and the associated complications, such as acute lung injury and acute kidney injury. Thus, exploring herbs that can effectively regulate the expression of AQP in SAP could benefit the prognosis of this disease.
AIM To determine whether Yue-Bi-Tang (YBT) can regulate the water metabolism in rats with severe acute pancreatitis via regulating the expression of aquaporins.
METHODS Sprague-Dawley rats were randomly divided into three groups, sham operation group (SOG), model group (MG), and treatment group (TG). SAP was induced with 3.5% sodium taurocholate in the MG and TG. Rats in the TG were administered with YBT while SOG and MG rats were given the same volume of saline. Blood and tissue samples were harvested to detect serum inflammatory cytokines, histopathological changes, malondialdehyde and superoxide dismutase in the lung, and protein and mRNA expression of kidney injury molecule-1, α-smooth muscle actin, and vimentin in the kidney, and AQP1 and 4 in the lung, pancreas, and kidney.
RESULTS The serum interleukin-10, tumor necrosis factor α, and creatinine levels were higher in the MG than in the SOG. Tumor necrosis factor α level in the TG was lower than that in the MG. Malondialdehyde level in lung tissues was higher than in the SOG. The pathological scores and edema scores of the pancreas, lung, and kidney tissues in the MG were all higher than those in the SOG and TG. The protein expression of AQP4 in lung tissues and AQP1 in kidney tissues in the MG were higher than those in the SOG and TG. The expression of vimentin was significantly higher in the MG than in the SOG. The expression of AQP1 mRNA in the lung and kidney, and AQP4 mRNA in the kidney was up-regulated in the MG compared to the SOG.
CONCLUSION YBT might regulate water metabolism to reduce lung and kidney edema of SAP rats via decreasing AQP expression, and alleviate the tissue inflammatory injury.
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Affiliation(s)
- Jing Hu
- Department of Integrative Medicine, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Yu-Mei Zhang
- Department of Traditional Chinese Medicine, Xiang’an Hospital of Xiamen University, Xiamen 361101, Fujian Province, China
| | - Yi-Fan Miao
- Department of Integrative Medicine, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Lv Zhu
- Department of Integrative Medicine, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Xiao-Lin Yi
- Department of Integrative Medicine, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Huan Chen
- Department of Integrative Medicine, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Xi-Jing Yang
- Animal Experiment Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Mei-Hua Wan
- Department of Integrative Medicine, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Wen-Fu Tang
- Department of Integrative Medicine, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
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Wang J, Li X, Liu Y, Peng C, Zhu H, Tu G, Yu X, Li Z. CircHIPK3 Promotes Pyroptosis in Acinar Cells Through Regulation of the miR-193a-5p/GSDMD Axis. Front Med (Lausanne) 2020; 7:88. [PMID: 32318575 PMCID: PMC7154086 DOI: 10.3389/fmed.2020.00088] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 03/02/2020] [Indexed: 12/20/2022] Open
Abstract
Acute pancreatitis (AP), especially severe acute pancreatitis (SAP), is an extremely dangerous illness with a high mortality rate. Pyroptotic cells release their cellular contents and inflammatory factors, aggravating the inflammatory response. Pyroptosis may be the main mode of acinar cell death during AP. The circular RNA circHIPK3 is expressed in pancreatic tissue and is associated with inflammatory response. In this study, we focused on the role and underlying mechanism of circHIPK3 in AP. We found that the expression of circHIPK3 was significantly elevated in serum of patients with AP and in caerulein-stimulated AR42J cells and was associated with caspase-1 and caspase-11 activation. circHIPK3 silencing ameliorated caerulein-induced cell damage and reduced the release of inflammatory factors IL-1β, IL-6, IL-8, and TNF-α and inhibited the activation of caspase-1 and caspase-11. In addition, circHIPK3 bound to miR-193a-5p and negatively regulated its expression. Inhibition of miR-193a-5p increased the release of IL-1β, IL-6, IL-8, and TNF-α and activated caspase-1 and caspase-11, thereby counteracting the effect of circHIPK3 silencing on caerulein-induced cell damage. Furthermore, we identified GSDMD as a target gene of miR-193a-5p, which is the key gene for pyroptosis. Interfering with the expression of GSDMD can increase cell viability, reduce the secretion of inflammatory cytokines, and suppress the activation of cleaved caspase-1 and caspase-11. Silencing GSDMD reversed the effects of miR-193a-5p inhibitors on caerulein-induced damage. In conclusion, circHIPK3 promotes pyroptosis in acinar cells through regulation of the miR-193a-5p/GSDMD axis, which eventually aggravates AP disease.
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Affiliation(s)
- Jiale Wang
- Department of Hepatobiliary and Pancreatic Surgery II, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Xia Li
- Department of Hepatobiliary and Pancreatic Surgery II, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yunfei Liu
- Department of Hepatobiliary and Pancreatic Surgery II, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Cheng Peng
- Department of Hepatobiliary and Pancreatic Surgery II, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Hongwei Zhu
- Department of Hepatobiliary and Pancreatic Surgery II, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Guangping Tu
- Department of Hepatobiliary and Pancreatic Surgery II, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Xiao Yu
- Department of Hepatobiliary and Pancreatic Surgery II, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Zhiqiang Li
- Department of Hepatobiliary and Pancreatic Surgery II, The Third Xiangya Hospital, Central South University, Changsha, China
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Fan HN, Chen W, Fan LN, Wu JT, Zhu JS, Zhang J. Macrophages-derived p38α promotes the experimental severe acute pancreatitis by regulating inflammation and autophagy. Int Immunopharmacol 2019; 77:105940. [PMID: 31655340 DOI: 10.1016/j.intimp.2019.105940] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 09/23/2019] [Accepted: 09/26/2019] [Indexed: 01/19/2023]
Abstract
BACKGROUND Severe acute pancreatitis (SAP) is a common threat to human health. In the present study, we aimed to investigate the underlying mechanisms by which p38α in macrophages contributes to SAP. We used conditional knockout of p38α in macrophages and p38 MAPK inhibitors to understand the effects of p38α in macrophages on caerulein-induced inflammatory responses in SAP mice models. METHODS AND MATERIALS Wild-type (WT) mice were randomly divided into three groups: a control group, SAP group, and SAP + p38MAPK inhibitor (SB203580) group, and mice with a conditional knockout (KO) of p38α in macrophages were included in a KO + SAP group. We evaluated pancreatic pathology and ultra-structure by hematoxylin and eosin staining and transmission electron microscopy. The pulmonary wet-to-dry weight ratio was calculated. The serum levels of TNF-α and IL-1β were determined by ELISA. The mRNA and protein expression of inflammatory cytokines TNF-α, IL-1β, IL-17, IL-18, MIF, and MCP-1 in pancreatic tissues were tested by qRT-PCR and immunohistochemistry analysis. The protein expression of p38, caspase-1, ULK1, LC3B and p62 in pancreatic tissues was examined by Western blotting. RESULTS The results indicated that the severity of SAP as well as the expression of the cytokines TNF-α, IL-1β, IL-17, IL-18 and MCP-1 were higher in the SAP group than those in the control group, but were lower in the SAP + SB203580 and KO + SAP groups as compared with the SAP group. The protein expression of p38, caspase-1, LC3B and p62 was increased in the SAP group than that in the control group, but this result was reversed in the SAP + SB203580 and KO + SAP groups as compared with the SAP group. In addition, the ULK1 level was significantly lower in the SAP group than that in the control group, but was increased in the SAP + SB203580 and KO + SAP groups as compared with the SAP group. CONCLUSIONS Our findings demonstrated that, macrophage derived p38α promoted the experimental severe acute pancreatitis by regulating inflammation and autophagy.
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Affiliation(s)
- Hui-Ning Fan
- Department of Gastroenterology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Wei Chen
- Department of Gastroenterology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Li-Na Fan
- Department of Gastroenterology, Zhongshan Hospital, Xiamen University, Xiamen 361004, China
| | - Jing-Tong Wu
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310000, China
| | - Jin-Shui Zhu
- Department of Gastroenterology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China.
| | - Jing Zhang
- Department of Gastroenterology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China.
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Potential Prognostic Markers of Acute Kidney Injury in the Early Phase of Acute Pancreatitis. Int J Mol Sci 2019; 20:ijms20153714. [PMID: 31366007 PMCID: PMC6696144 DOI: 10.3390/ijms20153714] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 07/19/2019] [Accepted: 07/29/2019] [Indexed: 02/07/2023] Open
Abstract
Acute kidney injury (AKI) is a serious complication of acute pancreatitis (AP), which occurs in up to 70% of patients with severe AP and significantly increases the risk of mortality. At present, AKI is diagnosed based on dynamic increase in serum creatinine and decreased urine output; however, there is a need for earlier and more accurate biomarkers. The aim of the study was to review current evidence on the laboratory tests that were studied as the potential biomarkers of AKI in AP. We also briefly summarized the knowledge coming from the studies including sepsis or ICU patients since severe acute pancreatitis is associated with systemic inflammation and organ failure. Serum cystatin C and serum or urine NGAL have been shown to predict or diagnose AKI in AP; however, this evidence come from the single center studies of low number of patients. Other markers, such as urinary kidney injury molecule-1, cell cycle arrest biomarkers (tissue inhibitor metalloproteinase-2 and urine insulin-like growth factor-binding protein 7), interleukin-18, liver-type fatty acid-binding protein, or calprotectin have been studied in other populations suffering from systemic inflammatory states. In AP, the potential markers of AKI may be significantly influenced by either dehydration or inflammation, and the impact of these factors may be difficult to distinguish from kidney injury. The subject of AKI complicating AP is understudied. More studies are needed, for both exploratory (to choose the best markers) and clinical (to evaluate the diagnostic accuracy of the chosen markers in real clinical settings).
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Jochheim LS, Odysseos G, Hidalgo-Sastre A, Zhong S, Staufer LM, Kroiss M, Kabacaoglu D, Lange S, Engleitner T, Hartmann D, Hüser N, Steiger K, Schmid RM, Holzmann B, von Figura G. The neuropeptide receptor subunit RAMP1 constrains the innate immune response during acute pancreatitis in mice. Pancreatology 2019; 19:541-547. [PMID: 31109903 DOI: 10.1016/j.pan.2019.05.455] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 05/02/2019] [Accepted: 05/10/2019] [Indexed: 12/11/2022]
Abstract
OBJECTIVES The importance of the Calcitonin-gene-related-peptide-pathway (CGRP) as neuronal modulator of innate immune responses in mice has been previously demonstrated. The CGRP-receptor is composed of two subunits: the receptor-activity-modifying-protein-1 (RAMP1) and the calcitonin-receptor-like-receptor (CLR). CGRP can influence immune cells and their capacity of producing inflammatory cytokines. Using a RAMP1 knockout-mouse (RAMP1-/-) we examined the role of the CGRP-receptor in the acute-phase of cerulein-induced pancreatitis. METHODS Hourly cerulein-injections for a period of 8 h in RAMP1-/- and wild-type mice were performed. To compare severity and extent of inflammation in RAMP1-/- and wild-type mice, histological analyses were done and cytokine levels were assessed using qRT-PCR 8 h, 24 h, 2 days, and 7 days post-cerulein-treatment. Furthermore, serum activities of LDH and lipase were determined. RESULTS After 8 h RAMP1-/- mice showed a higher pancreas-to-body-weight-ratio, increased tissue edema and immune cell infiltration with higher amount of F4/80-positive cells as compared to wild-type mice. Overall infiltration of immune cells at 24 h was increased in RAMP1-/- mice and composed predominantly of MPO-positive neutrophils. In addition, after 24 h RAMP1-/- mice presented a higher pancreas-to-body-weight-ratio, higher expression of Ccl3, Il6, and Il1b and increased number of cleaved caspase 3 positive cells. Serum lipase correlated with the extent of tissue damage in RAMP1-/- compared to wild-type mice 24 h post-cerulein treatment. CONCLUSION Mice lacking RAMP1 showed increased inflammation, tissue edema, and pancreas injury particularly in the early phase of acute pancreatitis. This study highlights the essential role of CGRP for dampening the innate immune response in acute pancreatitis.
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Affiliation(s)
- Leonie S Jochheim
- Technical University of Munich, School of Medicine, Klinikum Rechts der Isar, Department of Internal Medicine II, Munich, Germany
| | - Georgios Odysseos
- Technical University of Munich, School of Medicine, Klinikum Rechts der Isar, Department of Internal Medicine II, Munich, Germany
| | - Ana Hidalgo-Sastre
- Technical University of Munich, School of Medicine, Klinikum Rechts der Isar, Department of Internal Medicine II, Munich, Germany
| | - Suyang Zhong
- Technical University of Munich, School of Medicine, Klinikum Rechts der Isar, Department of Internal Medicine II, Munich, Germany
| | - Lina M Staufer
- Technical University of Munich, School of Medicine, Klinikum Rechts der Isar, Department of Internal Medicine II, Munich, Germany
| | - Markus Kroiss
- Technical University of Munich, School of Medicine, Klinikum Rechts der Isar, Department of Internal Medicine II, Munich, Germany
| | - Derya Kabacaoglu
- Technical University of Munich, School of Medicine, Klinikum Rechts der Isar, Department of Internal Medicine II, Munich, Germany
| | - Sebastian Lange
- Technical University of Munich, School of Medicine, Klinikum Rechts der Isar, Department of Internal Medicine II, Munich, Germany; Technical University of Munich, School of Medicine, Institute of Molecular Oncology and Functional Genomics, Munich, Germany
| | - Thomas Engleitner
- Technical University of Munich, School of Medicine, Klinikum Rechts der Isar, Department of Internal Medicine II, Munich, Germany; Technical University of Munich, School of Medicine, Institute of Molecular Oncology and Functional Genomics, Munich, Germany
| | - Daniel Hartmann
- Technical University Munich, School of Medicine, Klinikum Rechts der Isar, Department of Surgery, Munich, Germany
| | - Norbert Hüser
- Technical University Munich, School of Medicine, Klinikum Rechts der Isar, Department of Surgery, Munich, Germany
| | - Katja Steiger
- Technical University Munich, School of Medicine, Department of Pathology, Munich, Germany
| | - Roland M Schmid
- Technical University of Munich, School of Medicine, Klinikum Rechts der Isar, Department of Internal Medicine II, Munich, Germany
| | - Bernhard Holzmann
- Technical University Munich, School of Medicine, Klinikum Rechts der Isar, Department of Surgery, Munich, Germany
| | - Guido von Figura
- Technical University of Munich, School of Medicine, Klinikum Rechts der Isar, Department of Internal Medicine II, Munich, Germany.
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Garg PK, Singh VP. Organ Failure Due to Systemic Injury in Acute Pancreatitis. Gastroenterology 2019; 156:2008-2023. [PMID: 30768987 PMCID: PMC6486861 DOI: 10.1053/j.gastro.2018.12.041] [Citation(s) in RCA: 249] [Impact Index Per Article: 49.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 12/07/2018] [Accepted: 12/29/2018] [Indexed: 02/07/2023]
Abstract
Acute pancreatitis may be associated with both local and systemic complications. Systemic injury manifests in the form of organ failure, which is seen in approximately 20% of all cases of acute pancreatitis and defines "severe acute pancreatitis." Organ failure typically develops early in the course of acute pancreatitis, but also may develop later due to infected pancreatic necrosis-induced sepsis. Organ failure is the most important determinant of outcome in acute pancreatitis. We review here the current understanding of the risk factors, pathophysiology, timing, impact on outcome, and therapy of organ failure in acute pancreatitis. As we discuss the pathophysiology of severe systemic injury, the distinctions between markers and mediators of severity are highlighted based on evidence supporting their causality in organ failure. Emphasis is placed on clinically relevant end points of organ failure and the mechanisms underlying the pathophysiological perturbations, which offer insight into potential therapeutic targets to treat.
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Pharmacological Inhibition of Caspase-1 Ameliorates Cisplatin-Induced Nephrotoxicity through Suppression of Apoptosis, Oxidative Stress, and Inflammation in Mice. Mediators Inflamm 2018; 2018:6571676. [PMID: 30670928 PMCID: PMC6323438 DOI: 10.1155/2018/6571676] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 10/31/2018] [Indexed: 12/18/2022] Open
Abstract
Caspase-1 is a proinflammatory caspase responsible for the proteolytic conversion of the precursor forms of interleukin-1β to its active form and plays an important role in the pathogenesis of various inflammatory diseases. It was reported that genetic deficiency of caspase-1 prevented cisplatin-induced nephrotoxicity. However, whether pharmacological inhibition of caspase-1 also has a preventive effect against cisplatin-induced kidney injury has not been evaluated. In this study, we examined the effect of Ac-YVAD-cmk, a potent caspase-1-specific inhibitor, on renal function and histology in cisplatin-treated mice and explored its underlying mechanisms. We found that administration of Ac-YVAD-cmk effectively attenuated cisplatin-induced renal dysfunction, as evidenced by reduced plasma levels of blood urea nitrogen and creatinine, and histological abnormalities, such as tubular cell death, dilatation, and cast formation. Administration of Ac-YVAD-cmk inhibited caspase-3 activation as well as caspase-1 activation and attenuated apoptotic cell death, as assessed by terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling, in the kidneys of cisplatin-treated mice. Cisplatin-induced G2/M arrest of renal tubular cells was also reduced by caspase-1 inhibition. In addition, administration of Ac-YVAD-cmk reversed increased oxidative stress and depleted antioxidant capacity after cisplatin treatment. Moreover, increased macrophage accumulation and elevated expression of cytokines and chemokines were attenuated by caspase-1 inhibition. Taken together, these results suggest that caspase-1 inhibition by Ac-YVAD-cmk protects against cisplatin-induced nephrotoxicity through inhibition of renal tubular cell apoptosis, oxidative stress, and inflammatory responses. Our findings support the idea that caspase-1 may be a promising pharmacological target for the prevention of cisplatin-induced kidney injury.
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Regulation of Autophagy Affects the Prognosis of Mice with Severe Acute Pancreatitis. Dig Dis Sci 2018; 63:2639-2650. [PMID: 29629491 DOI: 10.1007/s10620-018-5053-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 03/31/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Acute pancreatitis (AP) is a common inflammatory disease that may develop to severe AP (SAP), resulting in life-threatening complications. Impaired autophagic flux is a characteristic of early AP, and its accumulation could activate oxidative stress and nuclear factor κB (NF-κB) pathways, which aggravate the disease process. AIM To explore the therapeutic effects of regulating autophagy after the onset of AP. METHODS In this study, intraperitoneal injections of 3-methyladenine (3-MA) and rapamycin (RAPA) in the L-arginine or cerulein plus lipopolysaccharide (LPS) Balb/C mouse model. At 24 h after the last injection, pulmonary, intestinal, renal and pancreatic tissues were analyzed. RESULTS We found that 3-MA ameliorated systemic organ injury in two SAP models. 3-MA treatment impaired autophagic flux and alleviated inflammatory activation by modulating the NF-κB signaling pathway and the caspase-1-IL-1β pathway, thus decreasing the injuries to the organs and the levels of inflammatory cytokines. CONCLUSION Our study found that the regulation of autophagy could alter the progression of AP induced by L-arginine or cerulein plus LPS in mice.
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Li M, Zhang X, Wang B, Xu X, Wu X, Guo M, Wang F. Effect of JAK2/STAT3 signaling pathway on liver injury associated with severe acute pancreatitis in rats. Exp Ther Med 2018; 16:2013-2021. [PMID: 30186433 DOI: 10.3892/etm.2018.6433] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 06/22/2018] [Indexed: 12/19/2022] Open
Abstract
Janus kinase/signal transducers and activators of transcription (JAK/STAT) signaling constitutes one of the major pathways for cytokine signal transduction. However, the role of the JAK2/STAT3 pathway in liver injury during severe acute pancreatitis (SAP) remains unclear. The aim of this study was to investigate the role of the JAK2/STAT3 signaling pathway in liver injury after SAP. In the present study 64 male Sprague-Dawley rats were randomly divided into four groups: Control, AG490 (inhibition of JAK2), SAP and SAP with AG490. SAP was induced by retrograde infusion of 4% sodium taurocholate into the biliopancreatic duct. The activities of amylase (AMY) and liver enzymes were measured in serum. Livers and pancreas were isolated for measurements of histological damage. Blood and liver samples were taken for the measurement of TNF-α, IL-6 and IL-18 concentrations. The expression levels of JAK2 and STAT3 in liver tissue were detected by immunohistochemical staining and western blotting. The results demonstrated that amylase and liver enzymes were higher in the SAP groups compared with the control, AG490 and AG490-treated groups. The serum levels of TNF-α, IL-6 and IL-18 were effectively increased in the SAP groups, whereas they were reduced by AG490. Interestingly, JAK2 and STAT3 protein expression levels were significantly increased following induction of SAP and were significantly decreased in the AG490-pretreated groups. Administration of AG490 decreased the activity of pro-inflammatory cytokines and significantly attenuated SAP associated-liver injury in the rats. These results suggested that the mechanism may relate to the inhibition of TNF-α, IL-6 and IL-18, and inhibiting excessive JAK2 and STAT3 activation, and may play a crucial role in the liver injury associated with SAP.
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Affiliation(s)
- Minli Li
- Department of Gastroenterology, Nanjing Medical University, Jinling Hospital, Nanjing, Jiangsu 210002, P.R. China
| | - Xiaohua Zhang
- Department of Gastroenterology, Nanjing Medical University, Jinling Hospital, Nanjing, Jiangsu 210002, P.R. China
| | - Bin Wang
- Department of Gastroenterology, Nanjing Medical University, Jinling Hospital, Nanjing, Jiangsu 210002, P.R. China
| | - Xiaobing Xu
- Department of Gastroenterology, Nanjing Medical University, Jinling Hospital, Nanjing, Jiangsu 210002, P.R. China
| | - Xiaowei Wu
- Department of Gastroenterology, Nanjing Medical University, Jinling Hospital, Nanjing, Jiangsu 210002, P.R. China
| | - Meixia Guo
- Department of Gastroenterology, Nanjing Medical University, Jinling Hospital, Nanjing, Jiangsu 210002, P.R. China
| | - Fangyu Wang
- Department of Gastroenterology, Nanjing Medical University, Jinling Hospital, Nanjing, Jiangsu 210002, P.R. China
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Teixeira LD, Kling DN, Lorca GL, Gonzalez CF. Lactobacillus johnsonii N6.2 diminishes caspase-1 maturation in the gastrointestinal system of diabetes prone rats. Benef Microbes 2018; 9:527-539. [PMID: 29633641 DOI: 10.3920/bm2017.0120] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The cells of the gastrointestinal (GI) epithelium are the first to contact the microbiota and food components. As a direct consequence of this, these cells are the first line of defence and key players in priming the immune response. One of the first responses against GI insults is the formation of the inflammasome, a multiprotein complex assembled in response to environmental threats. The formation of the inflammasome regulates caspase-1 by cleaving it into its active form. Once activated, caspase-1 can cleave interleukin-1β (IL-1β), which promotes adaptive and humoral immunity. Some strains, like Lactobacillus johnsonii N6.2, are able to modulate the biosynthesis of important host metabolites mediating inflammation. Of these metabolites are the pro-inflammatory kynurenines. L. johnsonii N6.2 is able to downregulate kynurenines biosynthesis via a redox active mechanism negatively affecting indoleamine 2,3-dioxygenase activity. In this study, we evaluated the effects of L. johnsonii N6.2 combined with the natural antioxidant and anti-inflammatory molecule rosmarinic acid (RA). Inflammasome assembly and the kynurenine pathway were evaluated in GI samples of BioBreeding diabetes-prone (BB-DP) rats. In this work, BB-DP rats were fed daily with RA, L. johnsonii N6.2; or both combined. The transcriptional rate and proteins levels of inflammasome and kynurenine pathway components in ileum tissue were evaluated. Elevated levels of pro-caspase-1 were observed in rats fed with L. johnsonii, while RA had no effect on pro-caspase-1 expression. Western blot assays demonstrated that L. johnsonii fed rats showed lower levels of mature caspase-1, when compared to the other treatments. Furthermore, IL-1β maturation followed a similar pattern across the treatments. Differences were also observed between treatments in expression levels of key enzymes in the kynurenine pathway. These findings support the role of L. johnsonii in modulating the assembly of the inflammasome as well as some steps of the pro-inflammatory kynurenine pathway.
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Affiliation(s)
- L D Teixeira
- 1 Department of Microbiology and Cell Science, Genetics Institute, Institute of Food and Agricultural Sciences, University of Florida, 2033 Mowry road, Rm307, Gainesville, FL 32608, USA
| | - D N Kling
- 1 Department of Microbiology and Cell Science, Genetics Institute, Institute of Food and Agricultural Sciences, University of Florida, 2033 Mowry road, Rm307, Gainesville, FL 32608, USA
| | - G L Lorca
- 1 Department of Microbiology and Cell Science, Genetics Institute, Institute of Food and Agricultural Sciences, University of Florida, 2033 Mowry road, Rm307, Gainesville, FL 32608, USA
| | - C F Gonzalez
- 1 Department of Microbiology and Cell Science, Genetics Institute, Institute of Food and Agricultural Sciences, University of Florida, 2033 Mowry road, Rm307, Gainesville, FL 32608, USA
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Mei F, Zuo T, Zhao L, Shi Q, Xiang M, Hong Y, Li M, Wang W. Differential JNK, p38 and ERK response to renal injury in a rat model of acute pancreatitis in pregnancy. Arch Gynecol Obstet 2018; 297:933-942. [PMID: 29349553 DOI: 10.1007/s00404-018-4668-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 01/11/2018] [Indexed: 12/31/2022]
Abstract
OBJECTIVE The objective of this study was to determine the mechanism of acute renal injury (ARI) in acute necrotizing pancreatitis in late pregnancy (ANPIP). METHODS Pregnant Sprague-Dawley rats in the third trimester were used for this study, and an ANPIP model was induced by injecting 5% sodium taurocholate into the biliary pancreatic duct. The rats were randomly divided into three groups: the normal, sham-operated (SO) and acute necrotizing pancreatitis (ANP) groups. Rats were killed at 3, 6, 12 h after the operation, and blood, pancreatic and renal tissue samples were harvested. Differences were detected in the physiology, pathology and cellular and molecular responses among the different groups. RESULT Serum amylase, lipase, urea and Cr levels were increased in rats with ANPIP. Additionally, expression of phosphorylation p38 and JNK as well as TNF-α and NF-κB were increased in the renal tissues of rats with ANPIP. The expression of phosphorylation ERK was decreased in the renal tissues of rats with ANPIP. CONCLUSIONS Mitogen-activated protein kinases may play an important role in renal injury in rat models of ANPIP.
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Affiliation(s)
- Fangchao Mei
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Teng Zuo
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Liang Zhao
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Qiao Shi
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Mingwei Xiang
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yupu Hong
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Man Li
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Weixing Wang
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.
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Ning JW, Zhang Y, Yu MS, Gu ML, Xu J, Usman A, Ji F. Emodin alleviates intestinal mucosal injury in rats with severe acute pancreatitis via the caspase-1 inhibition. Hepatobiliary Pancreat Dis Int 2017; 16:431-436. [PMID: 28823375 DOI: 10.1016/s1499-3872(17)60041-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Accepted: 06/28/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND Emodin, a traditional Chinese medicine, has a therapeutic effect on severe acute pancreatitis (SAP), whereas the underlying mechanism is still unclear. Studies showed that the intestinal mucosa impairment, and subsequent release of endotoxin and proinflammatory cytokines such as IL-1β, which further leads to the dysfunction of multiple organs, is the potentially lethal mechanism of SAP. Caspase-1, an IL-1β-converting enzyme, plays an important role in this cytokine cascade process. Investigation of the effect of emodin on regulating the caspase-1 expression and the release proinflammatory cytokines will help to reveal mechanism of emodin in treating SAP. METHODS Eighty Sprague-Dawley rats were randomly divided into four groups (n=20 each group): SAP, sham-operated (SO), emodin-treated (EM) and caspase-1 inhibitor-treated (ICE-I) groups. SAP was induced by retrograde infusion of 3.5% sodium taurocholate into the pancreatic duct. Emodin and caspase-1 inhibitor were given 30 minutes before and 12 hours after SAP induction. Serum levels of IL-1β, IL-18 and endotoxin, histopathological alteration of pancreas tissues, intestinal mucosa, and the intestinal caspase-1 mRNA and protein expressions were assessed 24 hours after SAP induction. RESULTS Rats in the SAP group had higher serum levels of IL-1β and IL-18 (P<0.05), pancreatic and gut pathological scores (P<0.05), and caspase-1 mRNA and protein expressions (P<0.05) compared with the SO group. Compared with the SAP group, rats in the EM and ICE-I groups had lower IL-1β and IL-18 levels (P<0.05), lower pancreatic and gut pathological scores (P<0.05), and decreased expression of intestine caspase-1 mRNA (P<0.05). Ultrastructural analysis by transmission electron microscopy found that rats in the SAP group had vaguer epithelial junctions, more disappeared intercellular joints, and more damaged intracellular organelles compared with those in the SO group or the EM and ICE-I groups. CONCLUSIONS Emodin alleviated pancreatic and intestinal mucosa injury in experimental SAP. Its mechanism may partly be mediated by the inhibition of caspase-1 and its downstream inflammatory cytokines, including IL-1β and IL-18. Our animal data may be applicable in clinical practice.
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Affiliation(s)
| | - Yan Zhang
- First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; Division of Gastroenterology, Yixing People's Hospital, Yixing 214200, China
| | - Mo-Sang Yu
- Division of Gastroenterology, Hangzhou, China
| | - Meng-Li Gu
- Division of Gastroenterology, Hangzhou, China
| | - Jia Xu
- Division of Emergency, Hangzhou, China
| | - Ali Usman
- Division of Gastroenterology, Hangzhou, China
| | - Feng Ji
- Division of Gastroenterology, Hangzhou, China.
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Role of ESAT-6 in renal injury by regulating microRNA-155 expression via TLR4/MyD88 signaling pathway in mice with Mycobacterium tuberculosis infection. Biosci Rep 2017; 37:BSR20170021. [PMID: 28655852 PMCID: PMC5529202 DOI: 10.1042/bsr20170021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 06/22/2017] [Accepted: 06/23/2017] [Indexed: 02/06/2023] Open
Abstract
The study aims to investigate the underlying mechanism involved in the early secretory antigenic target-6 (ESAT-6) in renal injury through regulation of the expression of miR-155 through the oll-like receptor (TLR)-4 (TLR4)/myeloid differentiation factor 88 (MyD88) signaling pathway in Mycobacterium tuberculosis (MTB)-infected mice. Sixty C57BL/6 mice with MTB-induced renal injury were randomly assigned into control, MTB, mimic, inhibitor, inhibitor + ESAT6, and inhibitor + ESAT6 + TAK242 groups. Body weight, the ratio of kidney weight to body weight (Kw/Bw), blood urea nitrogen (BUN), and serum creatinine (Scr) of mice were measured. Flow cytometry was used to detect renal activation in mice. Expressions of miR-155 and ESAT6 were detected by quantitative real-time PCR (qRT-PCR), and Western blotting was used to examine the expressions of ESAT6, TLR4, and MyD88. Expressions of tumor necrosis factor-α (TNF-α), interleukin-17 (IL-17), and interferon-γ (IFN-γ) were measured by qRT-PCR and ELISA. Compared with the control group, the BUN and Scr levels as well as the expression levels of miR-155, TLR4, MyD88, TNF-α, IL-17, and IFN-γ increased, while Kw/Bw decreased in the MTB and mimic groups. In comparison with the MTB group, the above indexes except Kw/Bw were elevated in the mimic group, but were reduced in the inhibitor group, while the Kw/Bw dropped in the mimic group but increased in the inhibitor group. Compared with the inhibitor group, the Kw/Bw decreased while the rest of the indexes increased in the inhibitor + ESAT6 group. ESAT6 may induce renal injury by promoting miR-155 expression through the TLR-4/MyD88 signaling pathway in MTB-infected mice.
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Zhu S, Zhang C, Weng Q, Ye B. Curcumin protects against acute renal injury by suppressing JAK2/STAT3 pathway in severe acute pancreatitis in rats. Exp Ther Med 2017; 14:1669-1674. [PMID: 28810635 DOI: 10.3892/etm.2017.4647] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 03/17/2017] [Indexed: 12/13/2022] Open
Abstract
The aim of the present study was to investigate the effect of curcumin on acute renal injury in a rat model of severe acute pancreatitis (SAP). A SAP model with acute kidney injury was established in rats by retrograde injection of 5% sodium taurocholate into the pancreatic duct. The serum amylase, creatinine (Cr) and blood urea nitrogen (BUN) levels in rats were measured. Hematoxylin and eosin staining was used to assess pancreatic and renal histological changes. Serum tumor necrosis factor (TNF)-α and interleukin (IL)-6 levels were measured using ELISA kits. Renal protein levels of Janus kinase (JAK) 2/signal transducer and activator of transcription (STAT) 3 pathway components were determined by western blot assay. The results showed that curcumin significantly decreased serum amylase, Cr and BUN levels, and alleviated pancreatic and renal histological changes in SAP rats. Furthermore, curcumin markedly decreased serum TNF-α and IL-6 levels and downregulated renal protein levels of JAK2/STAT3 pathway components. These results proved that curcumin ameliorates acute renal injury in a rat model of SAP. The molecular mechanism of its effect may be associated with the suppression of the JAK2/STAT3 pathway to reduce TNF-α and IL-6 levels in SAP-induced acute renal injury. Therefore, the findings of the present study revealed the potential use of curcumin for the prevention and treatment of SAP and the associated renal injury.
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Affiliation(s)
- Shuaijun Zhu
- Intensive Care Unit, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Chi Zhang
- Intensive Care Unit, Fujian Provincial Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Qinyong Weng
- Department of Geriatrics, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Bing Ye
- Intensive Care Unit, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
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Blood Urea Nitrogen as a Predictor of Severe Acute Pancreatitis Based on the Revised Atlanta Criteria: Timing of Measurement and Cutoff Points. Can J Gastroenterol Hepatol 2017; 2017:9592831. [PMID: 28487848 PMCID: PMC5406719 DOI: 10.1155/2017/9592831] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 03/19/2017] [Indexed: 02/07/2023] Open
Abstract
Background and Aims. This study evaluated the prognostic accuracy of BUN for severe acute pancreatitis (SAP) and in-hospital mortality (IHM) in terms of the best timing for BUN measurement and the optimal BUN cutoff points. Methods. BUN determinants at the time of admission and 24 hrs after hospital admission were recorded and analyzed statistically. The ability of BUN in predicting the SAP and the occurrence of IHM were assessed using the area under the receiver-operating characteristic (ROC) curve. Results. For SAP, AUC of BUN at admission and 24 hrs after hospital admission was 0.75 and 0.80, respectively. For IHM in acute pancreatitis, it was 0.86 at admission and 0.84 after 24 hrs of hospital admission, respectively. The optimal cutoff point of BUN 24 hrs after hospital admission for SAP and at admission for IHM was 8.3 mmol/L and 13.3 mmol/L, respectively. Conclusion. BUN determination after 24 hrs of hospital admission has high accuracy for prediction of SAP while BUN at initial admission has high accuracy for prediction of IHM.
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Bal A, Gonul Y, Hazman O, Kocak A, Bozkurt MF, Yilmaz S, Kokulu S, Oruc O, Demir K. Interleukin 18--binding protein ameliorates liver ischemia--reperfusion injury. J Surg Res 2015; 201:13-21. [PMID: 26850179 DOI: 10.1016/j.jss.2015.10.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 09/16/2015] [Accepted: 10/02/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND The aim of this study was to investigate the possible protective effect of interleukin 18-binding protein (IL-18BP) on ischemia-reperfusion (I/R)-induced liver injury in experimental rat models. Liver is one of the most affected organs from I/R process. IL-18 is an important proinflammatory cytokine, which may induce some events such as production of reactive oxygen substances and release of various cytokines. IL-18BP acts as an inhibitor of IL-18. The relationship between IL-18 and IL-18BP has an important place in inflammatory process. MATERIALS AND METHODS Rats were equally divided into three groups as follows: sham: Hepatic pedicle dissection was done, but hepatic pedicle clamping was not used. I/R: Sixty minutes of ischemia and 2 h of reperfusion were applied. IR + IL-18BP: Recombinant human IL-18BP (100 μg/kg) was administered 30 min before the surgery. Hepatic pedicle was clamped during 60 min of ischemia and 2 h of reperfusion was achieved. RESULTS Liver enzyme levels were significantly lower in the IR + IL-18BP group, when compared with the I/R group. Serum and tissue levels of tumor necrosis factor-α, IL-6, and IL-18 were considerably lower in the IR + IL-18BP group, when compared with the I/R group, but hepatic interferon-γ and IL1β levels were not significant. Serum oxidative stress index level was significantly higher in the I/R group, when compared with the IR + IL-18BP group. In immunostaining, it was observed that pathologic changes were lower in IR + IL-18BP group than the I/R group. CONCLUSIONS IL-18BP exhibited anti-inflammatory, antioxidant, and protective effects in I/R-mediated hepatic injury via regulating some liver enzyme activities and cytokine levels. Additionally, these effects have been verified by histomorphologic examination and oxidative stress markers.
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Affiliation(s)
- Ahmet Bal
- Department of General Surgery, Faculty of Medicine, Afyon Kocatepe University, Afyonkarahisar, Turkey.
| | - Yucel Gonul
- Department of Anatomy, Faculty of Medicine, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Omer Hazman
- Department of Biochemistry, Faculty of Science and Arts, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Ahmet Kocak
- Department of Histology and Embryology, Faculty of Medicine, Dumlupinar University, Kütahya, Turkey
| | - Mehmet Fatih Bozkurt
- Department of Pathology, Faculty of Veterinary, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Sezgin Yilmaz
- Department of General Surgery, Faculty of Medicine, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Serdar Kokulu
- Department of Anesthesia and Reanimation, Faculty of Medicine, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Oya Oruc
- Department of Emergency Medicine, Faculty of Medicine, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Kasim Demir
- Department of Gastroenterology, Samsun Training and Education Hospital, Samsun, Turkey
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23
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Lu HE, Chen Y, Sun XB, Tong B, Fan XH. Effects of luteolin on retinal oxidative stress and inflammation in diabetes. RSC Adv 2015. [DOI: 10.1039/c4ra10756j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
These studies are the first to show that luteolin can inhibit diabetes-induced retinal abnormalities that are postulated in the development of diabetic retinopathy.
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Affiliation(s)
- Hong-e Lu
- Department of Ophthalmology
- The People’s Hospital of Binzhou City
- Binzhou 256610
- China
| | - Yuan Chen
- Department of Ophthalmology
- The People’s Hospital of Binzhou City
- Binzhou 256610
- China
| | - Xiao-Bo Sun
- Department of Ophthalmology
- The People’s Hospital of Binzhou City
- Binzhou 256610
- China
| | - Bin Tong
- Department of Ophthalmology
- The People’s Hospital of Binzhou City
- Binzhou 256610
- China
| | - Xiao-Hui Fan
- Department of Ophthalmology
- The People’s Hospital of Binzhou City
- Binzhou 256610
- China
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