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Peng Q, Li B, Song P, Wang R, Jiang J, Jin X, Shen J, Bao J, Ni J, Han X, Hu G. IDH2-NADPH pathway protects against acute pancreatitis via suppressing acinar cell ferroptosis. Br J Pharmacol 2024; 181:4067-4084. [PMID: 39072736 DOI: 10.1111/bph.16469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 03/04/2024] [Accepted: 04/26/2024] [Indexed: 07/30/2024] Open
Abstract
BACKGROUND AND PURPOSE Acute pancreatitis (AP) is associated with acinar cell death and inflammatory responses. Ferroptosis is characterized by an overwhelming lipid peroxidation downstream of metabolic dysfunction, in which NADPH-related redox systems have been recognized as the mainstay in ferroptosis control. Nevertheless, it remains unknown how ferroptosis is regulated in AP and whether we can target it to restrict AP development. EXPERIMENTAL APPROACH Metabolomics were applied to explore changes in metabolic pathways in pancreatic acinar cells (PACs) in AP. Using wild-type and Ptf1aCreERT2/+IDH2fl/fl mice, AP was induced by caerulein and sodium taurocholate (NaT). IDH2 overexpressing adenovirus was constructed for infection of PACs. Mice or PACs were pretreated with inhibitors of FSP1 or glutathione reductase. Pancreatitis severity, acinar cell injury, mitochondrial morphological changes and pancreatic lipid peroxidation were analysed. KEY RESULTS Unsaturated fatty acid biosynthesis and the tricarboxylic acid cycle pathways were significantly altered in PACs during AP. Inhibition of ferroptosis reduced mitochondrial damage, lipid peroxidation and the severity of AP. During AP, the NADPH abundance and IDH2 expression were decreased. Acinar cell-specific deletion of IDH2 exacerbated acinar cell ferroptosis and pancreatic injury. Pharmacological inhibition of NADPH-dependent GSH/GPX4 and FSP1/CoQ10 pathways abolished the protective effect of IDH2 overexpression on ferroptosis in acinar cells. CoQ10 supplementation attenuated experimental pancreatitis via inhibiting acinar cell ferroptosis. CONCLUSION AND IMPLICATIONS We identified the IDH2-NADPH pathway as a novel regulator in protecting against AP via restricting acinar cell ferroptosis. Targeting the pathway and its downstream may shed light on AP treatment.
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Affiliation(s)
- Qi Peng
- Department of Gastroenterology, Shanghai General Hospital, Shanghai, China
- Shanghai Key Laboratory of Pancreatic Disease, Institute of Pancreatic Disease, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bin Li
- Department of Gastroenterology, Shanghai General Hospital, Shanghai, China
- Shanghai Key Laboratory of Pancreatic Disease, Institute of Pancreatic Disease, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Pengli Song
- Department of Gastroenterology, Shanghai General Hospital, Shanghai, China
- Shanghai Key Laboratory of Pancreatic Disease, Institute of Pancreatic Disease, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ruiyan Wang
- Department of Gastroenterology, Shanghai General Hospital, Shanghai, China
- Shanghai Key Laboratory of Pancreatic Disease, Institute of Pancreatic Disease, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jing Jiang
- Department of Gastroenterology, Shanghai General Hospital, Shanghai, China
- Shanghai Key Laboratory of Pancreatic Disease, Institute of Pancreatic Disease, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xuerui Jin
- Department of Gastroenterology, Shanghai General Hospital, Shanghai, China
- Shanghai Key Laboratory of Pancreatic Disease, Institute of Pancreatic Disease, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jie Shen
- Department of Gastroenterology, Shanghai General Hospital, Shanghai, China
- Shanghai Key Laboratory of Pancreatic Disease, Institute of Pancreatic Disease, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jingpiao Bao
- Department of Gastroenterology, Shanghai General Hospital, Shanghai, China
- Shanghai Key Laboratory of Pancreatic Disease, Institute of Pancreatic Disease, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jianbo Ni
- Department of Gastroenterology, Shanghai General Hospital, Shanghai, China
- Shanghai Key Laboratory of Pancreatic Disease, Institute of Pancreatic Disease, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao Han
- Department of Gastroenterology, Shanghai General Hospital, Shanghai, China
- Shanghai Key Laboratory of Pancreatic Disease, Institute of Pancreatic Disease, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guoyong Hu
- Department of Gastroenterology, Shanghai General Hospital, Shanghai, China
- Shanghai Key Laboratory of Pancreatic Disease, Institute of Pancreatic Disease, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Cai Y, Yang F, Huang X. Oxidative stress and acute pancreatitis (Review). Biomed Rep 2024; 21:124. [PMID: 39006508 PMCID: PMC11240254 DOI: 10.3892/br.2024.1812] [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: 02/02/2024] [Accepted: 06/06/2024] [Indexed: 07/16/2024] Open
Abstract
Acute pancreatitis (AP) is a common inflammatory disorder of the exocrine pancreas that causes severe morbidity and mortality. Although the pathophysiology of AP is poorly understood, a substantial body of evidence suggests some critical events for this disease, such as dysregulation of digestive enzyme production, cytoplasmic vacuolization, acinar cell death, edema formation, and inflammatory cell infiltration into the pancreas. Oxidative stress plays a role in the acute inflammatory response. The present review clarified the role of oxidative stress in the occurrence and development of AP by introducing oxidative stress to disrupt cellular Ca2+ balance and stimulating transcription factor activation and excessive release of inflammatory mediators for the application of antioxidant adjuvant therapy in the treatment of AP.
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Affiliation(s)
- Yongxia Cai
- Department of Emergency Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, P.R. China
| | - Feng Yang
- Department of Emergency Medicine, The First People's Hospital of Wuyi County, Jinhua, Zhejiang 321200, P.R. China
| | - Xizhu Huang
- Department of Emergency Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, P.R. China
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Lewis S, Evans DL, Tsugorka TT, Peng S, Stauderman K, Gerasimenko O, Gerasimenko J. Combination of the CRAC Channel Inhibitor CM4620 and Galactose as a Potential Therapy for Acute Pancreatitis. FUNCTION 2024; 5:zqae017. [PMID: 38984998 PMCID: PMC11237893 DOI: 10.1093/function/zqae017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/28/2024] [Accepted: 03/28/2024] [Indexed: 07/11/2024] Open
Abstract
Acute pancreatitis (AP) is a life-threatening inflammatory disease with no specific therapy. Excessive cytoplasmic Ca2+ elevation and intracellular ATP depletion are responsible for the initiation of AP. Inhibition of Ca2+ release-activated Ca2+ (CRAC) channels has been proposed as a potential treatment, and currently, a novel selective CRAC channel inhibitor CM4620 (Auxora, CalciMedica) is in Phase 2b human trials. While CM4620 is on track to become the first effective treatment for AP, it does not produce complete protection in animal models. Recently, an alternative approach has suggested reducing ATP depletion with a natural carbohydrate galactose. Here, we have investigated the possibility of using the smallest effective concentration of CM4620 in combination with galactose. Protective effects of CM4620, in the range of 1-100 n m, have been studied against necrosis induced by bile acids, palmitoleic acid, or l-asparaginase. CM4620 markedly protected against necrosis induced by bile acids or asparaginase starting from 50 n m and palmitoleic acid starting from 1 n m. Combining CM4620 and galactose (1 m m) significantly reduced the extent of necrosis to near-control levels. In the palmitoleic acid-alcohol-induced experimental mouse model of AP, CM4620 at a concentration of 0.1 mg/kg alone significantly reduced edema, necrosis, inflammation, and the total histopathological score. A combination of 0.1 mg/kg CM4620 with galactose (100 m m) significantly reduced further necrosis, inflammation, and histopathological score. Our data show that CM4620 can be used at much lower concentrations than reported previously, reducing potential side effects. The novel combination of CM4620 with galactose synergistically targets complementary pathological mechanisms of AP.
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Affiliation(s)
- Siân Lewis
- Cardiff School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, UK
| | - David L Evans
- Cardiff School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, UK
| | - Tetyana T Tsugorka
- Cardiff School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, UK
| | - Shuang Peng
- School of Sport and Health Sciences, Guangzhou Sport University, Guangzhou 510500, China
| | | | - Oleg Gerasimenko
- Cardiff School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, UK
| | - Julia Gerasimenko
- Cardiff School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, UK
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Gu X, Huang Z, Ying X, Liu X, Ruan K, Hua S, Zhang X, Jin H, Liu Q, Yang J. Ferroptosis exacerbates hyperlipidemic acute pancreatitis by enhancing lipid peroxidation and modulating the immune microenvironment. Cell Death Discov 2024; 10:242. [PMID: 38773098 PMCID: PMC11109150 DOI: 10.1038/s41420-024-02007-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 04/30/2024] [Accepted: 05/03/2024] [Indexed: 05/23/2024] Open
Abstract
Abnormal activation of ferroptosis worsens the severity of acute pancreatitis and intensifies the inflammatory response and organ damage, but the detailed underlying mechanisms are unknown. Compared with other types of pancreatitis, hyperlipidemic acute pancreatitis (HLAP) is more likely to progress to necrotizing pancreatitis, possibly due to peripancreatic lipolysis and the production of unsaturated fatty acids. Moreover, high levels of unsaturated fatty acids undergo lipid peroxidation and trigger ferroptosis to further exacerbate inflammation and worsen HLAP. This paper focuses on the malignant development of hyperlipidemic pancreatitis with severe disease combined with the core features of ferroptosis to explore and describe the mechanism of this phenomenon and shows that the activation of lipid peroxidation and the aberrant intracellular release of many inflammatory mediators during ferroptosis are the key processes that regulate the degree of disease development in patients with HLAP. Inhibiting the activation of ferroptosis effectively reduces the intensity of the inflammatory response, thus reducing organ damage in patients and preventing the risk of HLAP exacerbation. Additionally, this paper summarizes the key targets and potential therapeutic agents of ferroptosis associated with HLAP deterioration to provide new ideas for future clinical applications.
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Affiliation(s)
- Xinyi Gu
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhicheng Huang
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiuzhiye Ying
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiaodie Liu
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Kaiyi Ruan
- Zhejiang University School of Medicine, Hangzhou, China
| | - Sijia Hua
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiaofeng Zhang
- Department of Gastroenterology, Affiliated Hangzhou First People's Hospital, Westlake University School of Medicine, Hangzhou, China
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Biliary and Pancreatic Diseases of Zhejiang Province, Hangzhou, China
- Hangzhou Hospital & Institute of Digestive Diseases, Hangzhou, Hangzhou, China
| | - Hangbin Jin
- Department of Gastroenterology, Affiliated Hangzhou First People's Hospital, Westlake University School of Medicine, Hangzhou, China
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Biliary and Pancreatic Diseases of Zhejiang Province, Hangzhou, China
- Hangzhou Hospital & Institute of Digestive Diseases, Hangzhou, Hangzhou, China
| | - Qiang Liu
- Department of Gastroenterology, Affiliated Hangzhou First People's Hospital, Westlake University School of Medicine, Hangzhou, China.
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Biliary and Pancreatic Diseases of Zhejiang Province, Hangzhou, China.
- Hangzhou Hospital & Institute of Digestive Diseases, Hangzhou, Hangzhou, China.
| | - Jianfeng Yang
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China.
- Department of Gastroenterology, Affiliated Hangzhou First People's Hospital, Westlake University School of Medicine, Hangzhou, China.
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Biliary and Pancreatic Diseases of Zhejiang Province, Hangzhou, China.
- Hangzhou Hospital & Institute of Digestive Diseases, Hangzhou, Hangzhou, China.
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Zhang Y, Tang N, Zhou H, Zhu Y. The role of microbial metabolites in endocrine tumorigenesis: From the mechanistic insights to potential therapeutic biomarkers. Biomed Pharmacother 2024; 172:116218. [PMID: 38308969 DOI: 10.1016/j.biopha.2024.116218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/28/2023] [Accepted: 01/22/2024] [Indexed: 02/05/2024] Open
Abstract
Microbial metabolites have been indicated to communicate with the host's endocrine system, regulating hormone production, immune-endocrine communications, and interactions along the gut-brain axis, eventually affecting the occurrence of endocrine cancer. Furthermore, microbiota metabolites such as short-chain fatty acids (SCFAs) have been found to affect the tumor microenvironment and boost immunity against tumors. SCFAs, including butyrate and acetate, have been demonstrated to exert anti-proliferative and anti-protective activity on pancreatic cancer cells. The employing of microbial metabolic products in conjunction with radiation and chemotherapy has shown promising outcomes in terms of reducing treatment side effects and boosting effectiveness. Certain metabolites, such as valerate and butyrate, have been made known to improve the efficiency of CAR T-cell treatment, whilst others, such as indole-derived tryptophan metabolites, have been shown to inhibit tumor immunity. This review explores the intricate interplay between microbial metabolites and endocrine tumorigenesis, spanning mechanistic insights to the discovery of potential therapeutic biomarkers.
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Affiliation(s)
- Yiyi Zhang
- Department of Endocrinology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610072, China
| | - Nie Tang
- Department of Endocrinology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610072, China
| | - Hui Zhou
- Department of Endocrinology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610072, China.
| | - Ying Zhu
- Department of Endocrinology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610072, China.
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Chen X, Zhong R, Hu B. Mitochondrial dysfunction in the pathogenesis of acute pancreatitis. Hepatobiliary Pancreat Dis Int 2023:S1499-3872(23)00246-1. [PMID: 38212158 DOI: 10.1016/j.hbpd.2023.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 12/25/2023] [Indexed: 01/13/2024]
Abstract
The mechanism of cell damage during acute pancreatitis (AP) has not been fully elucidated, and there is still a lack of specific or effective treatments. Increasing evidence has implicated mitochondrial dysfunction as a key event in the pathophysiology of AP. Mitochondrial dysfunction is closely related to calcium (Ca2+) overload, intracellular adenosine triphosphate depletion, mitochondrial permeability transition pore openings, loss of mitochondrial membrane potential, mitophagy damage and inflammatory responses. Mitochondrial dysfunction is an early triggering event in the initiation and development of AP, and this organelle damage may precede the release of inflammatory cytokines, intracellular trypsin activation and vacuole formation of pancreatic acinar cells. This review provides further insight into the role of mitochondria in both physiological and pathophysiological aspects of AP, aiming to improve our understanding of the underlying mechanism which may lead to the development of therapeutic and preventive strategies for AP.
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Affiliation(s)
- Xia Chen
- Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu 610041, PR China; Department of Gastroenterology, Clinical Medical College and The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, PR China
| | - Rui Zhong
- Department of Gastroenterology, Clinical Medical College and The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, PR China
| | - Bing Hu
- Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu 610041, PR China.
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7
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Xu Z, Huang Z, Zhang Y, Sun H, Hinz U, Heger U, Loos M, Gonzalez FJ, Hackert T, Bergmann F, Fortunato F. Farnesoid X receptor activation inhibits pancreatic carcinogenesis. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166811. [PMID: 37515840 PMCID: PMC10935600 DOI: 10.1016/j.bbadis.2023.166811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 06/26/2023] [Accepted: 07/11/2023] [Indexed: 07/31/2023]
Abstract
Farnesoid X receptor (FXR), a member of the nuclear receptor superfamily that controls bile acid (BA) homeostasis, has also been proposed as a tumor suppressor for breast and liver cancer. However, its role in pancreatic ductal adenocarcinoma (PDAC) tumorigenesis remains controversial. We recently found that FXR attenuates acinar cell autophagy in chronic pancreatitis resulting in reduced autophagy and promotion of pancreatic carcinogenesis. Feeding Kras-p48-Cre (KC) mice with the BA chenodeoxycholic acid (CDCA), an FXR agonist, attenuated pancreatic intraepithelial neoplasia (PanIN) progression, reduced cell proliferation, neoplastic cells and autophagic activity, and increased acinar cells, elevated pro-inflammatory cytokines and chemokines, with a compensatory increase in the anti-inflammatory response. Surprisingly, FXR-deficient KC mice did not show any response to CDCA, suggesting that CDCA attenuates PanIN progression and decelerate tumorigenesis in KC mice through activating pancreatic FXR. FXR is activated in pancreatic cancer cell lines in response to CDCA in vitro. FXR levels were highly increased in adjuvant and neoadjuvant PDAC tissue compared to healthy pancreatic tissue, indicating that FXR is expressed and potentially activated in human PDAC. These results suggest that BA exposure activates inflammation and suppresses autophagy in KC mice, resulting in reduced PanIN lesion progression. These data suggest that activation of pancreatic FXR has a protective role by reducing the growth of pre-cancerous PDAC lesions in response to CDCA and possibly other FXR agonists.
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Affiliation(s)
- Zhen Xu
- Department of General, Visceral and Transplantation Surgery, University Clinic Heidelberg, Heidelberg, Germany; Section Surgical Research, University Clinic Heidelberg, Heidelberg, Germany
| | - Zhenhua Huang
- Department of General, Visceral and Transplantation Surgery, University Clinic Heidelberg, Heidelberg, Germany; Section Surgical Research, University Clinic Heidelberg, Heidelberg, Germany
| | - Yifan Zhang
- Department of General, Visceral and Transplantation Surgery, University Clinic Heidelberg, Heidelberg, Germany; Section Surgical Research, University Clinic Heidelberg, Heidelberg, Germany
| | - Haitao Sun
- Department of General, Visceral and Transplantation Surgery, University Clinic Heidelberg, Heidelberg, Germany; Section Surgical Research, University Clinic Heidelberg, Heidelberg, Germany
| | - Ulf Hinz
- Department of General, Visceral and Transplantation Surgery, University Clinic Heidelberg, Heidelberg, Germany
| | - Ulrike Heger
- Department of General, Visceral and Transplantation Surgery, University Clinic Heidelberg, Heidelberg, Germany
| | - Martin Loos
- Department of General, Visceral and Transplantation Surgery, University Clinic Heidelberg, Heidelberg, Germany
| | - Frank J Gonzalez
- National Cancer Institute, National Institutes of Health, MD, Bethesda, USA
| | - Thilo Hackert
- Department of General, Visceral and Transplantation Surgery, University Clinic Heidelberg, Heidelberg, Germany
| | - Frank Bergmann
- Institute of Pathology, University Clinic Heidelberg, Heidelberg, Germany
| | - Franco Fortunato
- Department of General, Visceral and Transplantation Surgery, University Clinic Heidelberg, Heidelberg, Germany; Section Surgical Research, University Clinic Heidelberg, Heidelberg, Germany.
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Wiley MB, Mehrotra K, Bauer J, Yazici C, Bialkowska AB, Jung B. Acute Pancreatitis: Current Clinical Approaches, Molecular Pathophysiology, and Potential Therapeutics. Pancreas 2023; 52:e335-e343. [PMID: 38127317 DOI: 10.1097/mpa.0000000000002259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
OBJECTIVE Severe acute pancreatitis (SAP), pancreatic inflammation leading to multiorgan failure, is associated with high morbidity and mortality. There is a critical need to identify novel therapeutic strategies to improve clinical outcomes for SAP patients. MATERIALS AND METHODS A comprehensive literature review was performed to identify current clinical strategies, known molecular pathophysiology, and potential therapeutic targets for SAP. RESULTS Current clinical approaches focus on determining which patients will likely develop SAP. However, therapeutic options are limited to supportive care and fluid resuscitation. The application of a novel 5-cytokine panel accurately predicting disease outcomes in SAP suggests that molecular approaches will improve impact of future clinical trials in AP. CONCLUSIONS Inflammatory outcomes in acute pancreatitis are driven by several unique molecular signals, which compound to promote both local and systemic inflammation. The identification of master cytokine regulators is critical to developing therapeutics, which reduce inflammation through several mechanisms.
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Affiliation(s)
- Mark B Wiley
- From the Department of Medicine, University of Washington, Seattle, WA
| | - Kunaal Mehrotra
- From the Department of Medicine, University of Washington, Seattle, WA
| | - Jessica Bauer
- From the Department of Medicine, University of Washington, Seattle, WA
| | - Cemal Yazici
- Department of Medicine, University of Illinois Chicago, Chicago, IL
| | - Agnieszka B Bialkowska
- Department of Medicine, Renaissance School of Medicine at Stony Brook University, Stony Brook, NY
| | - Barbara Jung
- From the Department of Medicine, University of Washington, Seattle, WA
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Assessing overdiagnosis of fecal immunological test screening for colorectal cancer with a digital twin approach. NPJ Digit Med 2023; 6:24. [PMID: 36765093 PMCID: PMC9918445 DOI: 10.1038/s41746-023-00763-5] [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: 05/27/2022] [Accepted: 01/21/2023] [Indexed: 02/12/2023] Open
Abstract
Evaluating the magnitude of overdiagnosis associated with stool-based service screening for colorectal cancer (CRC) beyond a randomized controlled trial is often intractable and understudied. We aim to estimate the proportion of overdiagnosis in population-based service screening programs for CRC with the fecal immunochemical test (FIT). The natural process of overdiagnosis-embedded disease was first built up to learn transition parameters that quantify the pathway of non-progressive and progressive screen-detected cases calibrated with sensitivity, while also taking competing mortality into account. The Markov algorithms were then developed for estimating these transition parameters based on Taiwan FIT service CRC screening data on 5,417,699 residents aged 50-69 years from 2004 to 2014. Following the digital twin design with the parallel universe structure for emulating the randomized controlled trial, the screened twin, mirroring the control group without screening, was virtually recreated by the application of the above-mentioned trained parameters to predict CRC cases containing overdiagnosis. The ratio of the predicted CRCs derived from the screened twin to the observed CRCs of the control group minus 1 was imputed to measure the extent of overdiagnosis. The extent of overdiagnosis for invasive CRCs resulting from FIT screening is 4.16% (95% CI: 2.61-5.78%). The corresponding figure is increased to 9.90% (95% CI: 8.41-11.42%) for including high grade dysplasia (HGD) and further inflated to 15.83% (95% CI: 15.23-16.46%) when the removal adenoma is considered. The modest proportion of overdiagnosis modelled by the digital twin method, dispensing with the randomized controlled trial design, suggests the harm done to population-based FIT service screening is negligible.
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Banerjee P, Kumaravel S, Roy S, Gaddam N, Odeh J, Bayless KJ, Glaser S, Chakraborty S. Conjugated Bile Acids Promote Lymphangiogenesis by Modulation of the Reactive Oxygen Species-p90RSK-Vascular Endothelial Growth Factor Receptor 3 Pathway. Cells 2023; 12:526. [PMID: 36831193 PMCID: PMC9953922 DOI: 10.3390/cells12040526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/29/2023] [Accepted: 01/31/2023] [Indexed: 02/09/2023] Open
Abstract
Conjugated bile acids (BA) are significantly elevated in several liver pathologies and in the metastatic lymph node (LN). However, the effects of BAs on pathological lymphangiogenesis remains unknown. The current study explores the effects of BAs on lymphangiogenesis. BA levels were elevated in the LN and serum of Mdr2-/- mice (model of sclerosing cholangitis) compared to control mice. Liver and LN tissue sections showed a clear expansion of the lymphatic network in Mdr2-/- mice, indicating activated lymphangiogenic pathways. Human lymphatic endothelial cells (LECs) expressed BA receptors and a direct treatment with conjugated BAs enhanced invasion, migration, and tube formation. BAs also altered the LEC metabolism and upregulated key metabolic genes. Further, BAs induced the production of reactive oxygen species (ROS), that in turn phosphorylated the redox-sensitive kinase p90RSK, an essential regulator of endothelial cell dysfunction and oxidative stress. Activated p90RSK increased the SUMOylation of the Prox1 transcription factor and enhanced VEGFR3 expression and 3-D LEC invasion. BA-induced ROS in the LECs, which led to increased levels of Yes-associated protein (YAP), a lymphangiogenesis regulator. The suppression of cellular YAP inhibited BA-induced VEGFR3 upregulation and lymphangiogenic mechanism. Overall, our data shows the expansion of the lymphatic network in presclerotic liver disease and establishes a novel mechanism whereby BAs promote lymphangiogenesis.
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Affiliation(s)
- Priyanka Banerjee
- Department of Medical Physiology, Texas A&M Health Science Center, Bryan, TX 77807, USA
| | - Subhashree Kumaravel
- Department of Medical Physiology, Texas A&M Health Science Center, Bryan, TX 77807, USA
| | - Sukanya Roy
- Department of Medical Physiology, Texas A&M Health Science Center, Bryan, TX 77807, USA
| | - Niyanshi Gaddam
- Department of Medical Physiology, Texas A&M Health Science Center, Bryan, TX 77807, USA
| | - Johnny Odeh
- Department of Medical Physiology, Texas A&M Health Science Center, Bryan, TX 77807, USA
| | - Kayla J. Bayless
- Department of Molecular and Cellular Medicine, Texas A&M University Health Science Center, Bryan, TX 77807, USA
| | - Shannon Glaser
- Department of Medical Physiology, Texas A&M Health Science Center, Bryan, TX 77807, USA
| | - Sanjukta Chakraborty
- Department of Medical Physiology, Texas A&M Health Science Center, Bryan, TX 77807, USA
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11
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Huangfu Y, Yu X, Wan C, Zhu Y, Wei Z, Li F, Wang Y, Zhang K, Li S, Dong Y, Li Y, Niu H, Xin G, Huang W. Xanthohumol alleviates oxidative stress and impaired autophagy in experimental severe acute pancreatitis through inhibition of AKT/mTOR. Front Pharmacol 2023; 14:1105726. [PMID: 36744265 PMCID: PMC9890064 DOI: 10.3389/fphar.2023.1105726] [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: 11/23/2022] [Accepted: 01/09/2023] [Indexed: 01/19/2023] Open
Abstract
Severe acute pancreatitis (SAP) is a lethal gastrointestinal disorder, yet no specific and effective treatment is available. Its pathogenesis involves inflammatory cascade, oxidative stress, and autophagy dysfunction. Xanthohumol (Xn) displays various medicinal properties, including anti-inflammation, antioxidative, and enhancing autophagic flux. However, it is unclear whether Xn inhibits SAP. This study investigated the efficacy of Xn on sodium taurocholate (NaT)-induced SAP (NaT-SAP) in vitro and in vivo. First, Xn attenuated biochemical and histopathological responses in NaT-SAP mice. And Xn reduced NaT-induced necrosis, inflammation, oxidative stress, and autophagy impairment. The mTOR activator MHY1485 and the AKT activator SC79 partly reversed the treatment effect of Xn. Overall, this is an innovative study to identify that Xn improved pancreatic injury by enhancing autophagic flux via inhibition of AKT/mTOR. Xn is expected to become a novel SAP therapeutic agent.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Guang Xin
- *Correspondence: Wen Huang, ; Guang Xin,
| | - Wen Huang
- *Correspondence: Wen Huang, ; Guang Xin,
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12
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Yazıcı Ö, Kara M, Boran T, Ozhan G. The Role of Endoplasmic Reticulum Stress in Cell Injury Induced by Methimazole on Pancreatic Cells. Adv Pharm Bull 2023; 13:196-201. [PMID: 36721818 PMCID: PMC9871271 DOI: 10.34172/apb.2023.042] [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: 03/23/2021] [Revised: 01/04/2022] [Accepted: 01/04/2022] [Indexed: 02/03/2023] Open
Abstract
Purpose: Methimazole is an anti-thyroid agent, especially as main therapy option for Graves' disease in children and adults. Drug induced pancreatitis is one of the known adverse effect of methimazole mentioned in case reports. However, the detailed molecular mechanisms of methimazole-induced pancreatitis are still unclear. In this study, the aim is to investigate the adverse effect of methimazole on pancreas cell stress mechanism and apoptosis. Methods: Cytotoxicity was evaluated in human pancreas/duct (PANC-1) cell line. Total oxidant (TOS) and antioxidant status (TAS) for oxidative stress index, glutathione (GSH) level and endoplasmic reticulum (ER) stress biomarkers were evaluated by ELISA. Reactive oxygen species (ROS) levels and apoptosis were evaluated by flow-cytometer. Results: The 30% inhibition rate concentration (IC30) value was determined as 53 mM in PANC1 cells. The exposure concentrations were in the range of 0-40 mM for 48 hours. Methimazole might induce cellular stress conditions. ROS production increases depending on concentration, and this increase shows parallelism with the increase in ER stress biomarkers such as TOS, ERN1 and CASPASE12. Conversely, there was no significant difference between control and exposure groups in terms of apoptosis. Conclusion: In conclusion, methimazole might have triggered the mechanisms of inflammation or autophagy in the pancreatic cells. However, there is still a need for in vitro and in vivo studies including other cellular parameters related to apoptosis.
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Affiliation(s)
- Özge Yazıcı
- Both authors contributed equally as the first authors
| | - Mehtap Kara
- Both authors contributed equally as the first authors
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13
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Zhuge A, Li S, Yuan Y, Han S, Xia J, Wang Q, Wang S, Lou P, Li B, Li L. Microbiota-induced lipid peroxidation impairs obeticholic acid-mediated antifibrotic effect towards nonalcoholic steatohepatitis in mice. Redox Biol 2022; 59:102582. [PMID: 36584600 PMCID: PMC9830314 DOI: 10.1016/j.redox.2022.102582] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/15/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Obeticholic acid (OCA) has been examined to treat non-alcoholic steatohepatitis (NASH), but has unsatisfactory antifibrotic effect and deficient responsive rate in recent phase III clinical trial. Using a prolonged western diet-feeding murine NASH model, we show that OCA-shaped gut microbiota induces lipid peroxidation and impairs its anti-fibrotic effect. Mechanically, Bacteroides enriched by OCA deconjugates tauro-conjugated bile acids to generate excessive chenodeoxycholic acid (CDCA), resulting in liver ROS accumulation. We further elucidate that OCA reduces triglycerides containing polyunsaturated fatty acid (PUFA-TGs) levels, whereas elevates free PUFAs and phosphatidylethanolamines containing PUFA (PUFA-PEs), which are susceptible to be oxidized to lipid peroxides (notably arachidonic acid (ARA)-derived 12-HHTrE), inducing hepatocyte ferroptosis and activating hepatic stellate cells (HSCs). Inhibiting lipid peroxidation with pentoxifylline (PTX) rescues anti-fibrotic effect of OCA, suggesting combination of OCA and lipid peroxidation inhibitor could be a potential antifibrotic pharmacological approach in clinical NASH-fibrosis.
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Affiliation(s)
- Aoxiang Zhuge
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Shengjie Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Yin Yuan
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Shengyi Han
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Jiafeng Xia
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Qiangqiang Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Shuting Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Pengcheng Lou
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Bo Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China; Research Units of Infectious Disease and Microecology, Chinese Academy of Medical Sciences, Beijing, 100730, China.
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China; Research Units of Infectious Disease and Microecology, Chinese Academy of Medical Sciences, Beijing, 100730, China; Jinan Microecological Biomedicine Shandong Laboratory, Jinan, 250000, China.
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14
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Xu L, Li Y, Wei Z, Bai R, Gao G, Sun W, Jiang X, Wang J, Li X, Pi Y. Chenodeoxycholic Acid (CDCA) Promoted Intestinal Epithelial Cell Proliferation by Regulating Cell Cycle Progression and Mitochondrial Biogenesis in IPEC-J2 Cells. Antioxidants (Basel) 2022; 11:antiox11112285. [PMID: 36421471 PMCID: PMC9687205 DOI: 10.3390/antiox11112285] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/14/2022] [Accepted: 11/16/2022] [Indexed: 11/19/2022] Open
Abstract
Chenodeoxycholic acid (CDCA), a primary bile acid (BA), has been demonstrated to play an important role as a signaling molecule in various physiological functions. However, the role of CDCA in regulating intestinal epithelial cell (IEC) function remains largely unknown. Herein, porcine intestinal epithelial cells (IPEC-J2) were used as an in vitro model to investigate the effects of CDCA on IEC proliferation and explore the underlying mechanisms. IPEC-J2 cells were treated with CDCA, and flow cytometry and transcriptome analysis were adopted to investigate the effects and potential molecular mechanisms of CDCA on the proliferation of IECs. Our results indicated that adding 50 μmol/L of CDCA in the media significantly increased the proliferation of IPEC-J2 cells. In addition, CDCA treatment also hindered cell apoptosis, increased the proportion of G0/G1 phase cells in the cell cycle progression, reduced intracellular ROS, and MDA levels, and increased mitochondrial membrane potential, antioxidation enzyme activity (T-AOC and CAT), and intracellular ATP level (p < 0.05). RNA-seq results showed that CDCA significantly upregulated the expression of genes related to cell cycle progression (Cyclin-dependent kinase 1 (CDK1), cyclin G2 (CCNG2), cell-cycle progression gene 1 (CCPG1), Bcl-2 interacting protein 5 (BNIP5), etc.) and downregulated the expression of genes related to mitochondrial biogenesis (ND1, ND2, COX3, ATP6, etc.). Further KEGG pathway enrichment analysis showed that CDCA significantly enriched the signaling pathways of DNA replication, cell cycle, and p53. Collectively, this study demonstrated that CDCA could promote IPEC-J2 proliferation by regulating cell cycle progression and mitochondrial function. These findings provide a new strategy for promoting the intestinal health of pigs by regulating intestinal BA metabolism.
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Affiliation(s)
- Lei Xu
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yanpin Li
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Zixi Wei
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Rong Bai
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Department of Business Economics, Wageningen University, 6700 EW Wageningen, The Netherlands
| | - Ge Gao
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Wenjuan Sun
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xianren Jiang
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Junjun Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Xilong Li
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Correspondence: (X.L.); (Y.P.); Tel.: +86-010-82108134 (X.L.)
| | - Yu Pi
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Correspondence: (X.L.); (Y.P.); Tel.: +86-010-82108134 (X.L.)
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15
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Tang Y, Zhou X, Cao T, Chen E, Li Y, Lei W, Hu Y, He B, Liu S. Endoplasmic Reticulum Stress and Oxidative Stress in Inflammatory Diseases. DNA Cell Biol 2022; 41:924-934. [DOI: 10.1089/dna.2022.0353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Yun Tang
- Department of Clinical Laboratory Medicine, Institution of Microbiology and Infectious Diseases, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Xiangping Zhou
- Department of Clinical Laboratory Medicine, Institution of Microbiology and Infectious Diseases, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Ting Cao
- Department of Clinical Laboratory Medicine, Institution of Microbiology and Infectious Diseases, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - En Chen
- Department of Clinical Laboratory Medicine, Institution of Microbiology and Infectious Diseases, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Yumeng Li
- Department of Clinical Laboratory Medicine, Institution of Microbiology and Infectious Diseases, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Wenbo Lei
- Department of Clinical Laboratory Medicine, Institution of Microbiology and Infectious Diseases, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Yibao Hu
- Department of Clinical Laboratory Medicine, Institution of Microbiology and Infectious Diseases, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Bisha He
- Department of Clinical Laboratory Medicine, Institution of Microbiology and Infectious Diseases, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Shuangquan Liu
- Department of Clinical Laboratory Medicine, Institution of Microbiology and Infectious Diseases, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
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16
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Zhang D, Li L, Li J, Wei Y, Tang J, Man X, Liu F. Colchicine improves severe acute pancreatitis-induced acute lung injury by suppressing inflammation, apoptosis and oxidative stress in rats. Biomed Pharmacother 2022; 153:113461. [DOI: 10.1016/j.biopha.2022.113461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 07/17/2022] [Accepted: 07/21/2022] [Indexed: 11/27/2022] Open
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17
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Shan Y, Li J, Zhu A, Kong W, Ying R, Zhu W. Ginsenoside Rg3 ameliorates acute pancreatitis by activating the NRF2/HO‑1‑mediated ferroptosis pathway. Int J Mol Med 2022; 50:89. [PMID: 35582998 PMCID: PMC9162051 DOI: 10.3892/ijmm.2022.5144] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 04/01/2022] [Indexed: 12/02/2022] Open
Abstract
Acute pancreatitis (AP) is an inflammatory disorder that has been associated with systemic inflammatory response syndrome. Ginsenoside Rg3 is a major active component of Panax ginseng, which has been demonstrated to exert potent protective effects on hyperglycemia and diabetes. However, it remains to be determined whether Rg3 ameliorates AP. Thus, an in vitro AP cell model was established in the present study by exposing AR42J cells to cerulein (Cn). AR42J cell viability was increased in the Rg3‑treated group as compared with the Cn‑exposed group. Simultaneously, the number of dead AR42J cells was decreased in the Rg3‑treated group compared with the group treated with Cn only. Furthermore, following treatment with Rg3, the production of malondialdehyde (MDA) and ferrous ion (Fe2+) in the AR42J cells was reduced, accompanied by increased glutathione (GSH) levels. Western blot analysis revealed that the decrease in glutathione peroxidase 4 (GPX4) and cystine/glutamate transporter (xCT) levels induced by Cn were reversed by Rg3 treatment in the AR42J cells. Mice treated with Cn exhibited increased serum amylase levels, as well as increased levels of TNFα, IL‑6, IL‑1β, pancreatic MDA, reactive oxygen species (ROS) and Fe2+ production. Following Rg3 treatment, ROS accumulation and cell death were decreased in the pancreatic tissues compared with the AP group. Furthermore, in the pancreatic tissues of the AP model, the expression of nuclear factor‑erythroid factor 2‑related factor 2 (NRF2)/heme oxygenase 1 (HO‑1)/xCT/GPX4 was suppressed. In comparison, the NRF2/HO‑1/xCT/GPX4 pathway was activated in pancreatic tissues following Rg3 administration. Taken together, the present study, to the best of our knowledge, is the first to reveal a protective role for Rg3 in mice with AP by suppressing oxidative stress‑related ferroptosis and the activation of the NRF2/HO‑1 pathway.
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Affiliation(s)
- Yuqiang Shan
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
- Department of Gastroenterological Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, P.R. China
| | - Jiaotao Li
- Department of Gastroenterological Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, P.R. China
| | - Akao Zhu
- Department of Gastroenterological Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, P.R. China
| | - Wencheng Kong
- Department of Gastroenterological Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, P.R. China
| | - Rongchao Ying
- Department of Gastroenterological Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, P.R. China
| | - Weiming Zhu
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
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18
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Drug D, a Diosgenin Derive, Inhibits L-Arginine-Induced Acute Pancreatitis through Meditating GSDMD in the Endoplasmic Reticulum via the TXNIP/HIF-1α Pathway. Nutrients 2022; 14:nu14132591. [PMID: 35807771 PMCID: PMC9268286 DOI: 10.3390/nu14132591] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/15/2022] [Accepted: 06/17/2022] [Indexed: 12/13/2022] Open
Abstract
Acute pancreatitis (AP) is one of the most common causes of hospitalization for gastrointestinal diseases, with high morbidity and mortality. Endoplasmic reticulum stress (ERS) and Gasdermin D (GSDMD) mediate AP, but little is known about their mutual influence on AP. Diosgenin has excellent anti-inflammatory and antioxidant effects. This study investigated whether Diosgenin derivative D (Drug D) inhibits L-arginine-induced acute pancreatitis through meditating GSDMD in the endoplasmic reticulum (ER). Our studies were conducted in a mouse model of L-arginine-induced AP as well as in an in vitro model on mouse pancreatic acinar cells. The GSDMD accumulation in ER was found in this study, which caused ERS of acinar cells. GSDMD inhibitor Disulfiram (DSF) notably decreased the expression of GSDMD in ER and TXNIP/HIF-1α signaling. The molecular docking study indicated that there was a potential interaction between Drug D and GSDMD. Our results showed that Drug D significantly inhibited necrosis of acinar cells dose-dependently, and we also found that Drug D alleviated pancreatic necrosis and systemic inflammation by inhibiting the GSDMD accumulation in the ER of acinar cells via the TXNIP/HIF-1α pathway. Furthermore, the level of p-IRE1α (a marker of ERS) was also down-regulated by Drug D in a dose-dependent manner in AP. We also found that Drug D alleviated TXNIP up-regulation and oxidative stress in AP. Moreover, our results revealed that GSDMD-/- mitigated AP by inhibiting TXNIP/HIF-1α. Therefore, Drug D, which is extracted from Dioscorea zingiberensis, may inhibit L-arginine-induced AP by meditating GSDMD in the ER by the TXNIP /HIF-1α pathway.
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19
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Cridge H, Lim SY, Algül H, Steiner JM. New insights into the etiology, risk factors, and pathogenesis of pancreatitis in dogs: Potential impacts on clinical practice. J Vet Intern Med 2022; 36:847-864. [PMID: 35546513 PMCID: PMC9151489 DOI: 10.1111/jvim.16437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 04/08/2022] [Accepted: 04/12/2022] [Indexed: 12/11/2022] Open
Abstract
While most cases of pancreatitis in dogs are thought to be idiopathic, potential risk factors are identified. In this article we provide a state‐of‐the‐art overview of suspected risk factors for pancreatitis in dogs, allowing for improved awareness and detection of potential dog‐specific risk factors, which might guide the development of disease prevention strategies. Additionally, we review important advances in our understanding of the pathophysiology of pancreatitis and potential areas for therapeutic manipulation based thereof. The outcome of pathophysiologic mechanisms and the development of clinical disease is dependent on the balance between stressors and protective mechanisms, which can be evaluated using the critical threshold theory.
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Affiliation(s)
- Harry Cridge
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, Michigan, USA
| | - Sue Yee Lim
- Gastrointestinal Laboratory, Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, Texas, USA
| | - Hana Algül
- Gastrointestinal Cancer and Inflammatory Research Laboratory, Technical University of Munich, Munich, Germany
| | - Jörg M Steiner
- Gastrointestinal Laboratory, Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, Texas, USA
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20
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Yang X, Geng H, You L, Yuan L, Meng J, Ma Y, Gu X, Lei M. Rhein Protects Against Severe Acute Pancreatitis In vitro and In vivo by Regulating the JAK2/STAT3 Pathway. Front Pharmacol 2022; 13:778221. [PMID: 35370748 PMCID: PMC8969574 DOI: 10.3389/fphar.2022.778221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 02/28/2022] [Indexed: 01/30/2023] Open
Abstract
Rhein is widely used in inflammation treatment in China, but its effects on severe acute pancreatitis (SAP) have not been studied closely. This study investigated rhein’s protective effects against SAP using in vitro and in vivo models to determine whether its protective mechanism regulated the Janus kinase two and signal transducer and activator of transcription 3 (JAK2/STAT3) signalling pathway. Thirty-six male Sprague–Dawley rats were randomised into sham operation, SAP and rhein groups. The SAP model was induced by retrograde pancreatic bile duct injection of sodium taurocholate. Serum TNF-α and interleukin (IL)-6 levels were determined by ELISA, whereas serum amylase and lipase concentrations were measured using test kits. Western blot and/or immunohistochemistry quantified JAK2 and STAT3 expression. Furthermore, histopathological pancreatic changes were detected by haematoxylin and eosin staining. AR42J cells were randomly divided into the control, cerulein and rhein groups. Amylase activity was assessed using an amylase test kit; the tumour necrosis factor-α (TNF-α) expression was determined by enzyme-linked immunosorbent assay (ELISA). JAK2 and STAT3 protein expression were evaluated by western blot. SAP was concomitant with increased JAK2 and STAT3 expressions in vivo. Pre-treatment with rhein attenuated serum TNF–α and IL-6 levels effectively, and notably reduced p-JAK2, p-STAT3, JAK2 and STAT3 protein expression. Rhein significantly alleviated pancreatic histopathology. Compared to untreated groups, rhein significantly reduced amylase activity in supernatants of AR42J cells induced by cerulein in vitro. Furthermore, rhein altered JAK2 and STAT3 protein levels in AR42J cells after cerulein induction. Overall, rhein exerted protective effect on SAP in vitro and in vivo, possibly through the JAK2/STAT3 signalling pathway.
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Affiliation(s)
- Xiaofang Yang
- Department of Critical Care Medicine, Seventh People's Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Huan Geng
- Department of Critical Care Medicine, Seventh People's Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lijiao You
- Department of Critical Care Medicine, Seventh People's Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lin Yuan
- Department of Critical Care Medicine, Seventh People's Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jialei Meng
- Department of Critical Care Medicine, Seventh People's Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yuhui Ma
- Department of Critical Care Medicine, Seventh People's Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xuelian Gu
- Department of Critical Care Medicine, Seventh People's Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ming Lei
- Department of Critical Care Medicine, Seventh People's Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
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21
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Oliveira SRBD, Franco ÁX, Quaresma MP, de Carvalho CMM, da Cunha Jácome Marques F, da Silva Pantoja P, Mendonça VA, da Silva Osterne VJ, Correia JLA, Assreuy AMS, de Souza MHLP, do Nascimento KS, Cavada BS, Criddle DN, Soares PMG. Anti-inflammatory and anti-necrotic effects of lectins from Canavalia ensiformis and Canavalia brasiliensis in experimental acute pancreatitis. Glycoconj J 2022; 39:599-608. [PMID: 35239112 DOI: 10.1007/s10719-022-10048-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/14/2022] [Accepted: 02/09/2022] [Indexed: 11/04/2022]
Abstract
Lectins isolated from Canavalia ensiformis (ConA) and Canavalia brasiliensis (ConBr) are promising molecules to prevent cell death. Acute pancreatitis, characterized by acinar cell necrosis and inflammation, presents significant morbidity and mortality. This study has investigated the effects of ConA and ConBr in experimental acute pancreatitis and pancreatic acinar cell death induced by bile acid. Pancreatitis was induced by retrograde pancreatic ductal injection of 3% sodium taurocholate (Na-TC) in male Swiss mice. ConA or ConBr (0.1, 1 or 10 mg/kg) were intravenously applied to mice 1 h and 12 h after induction. After 24 h, the severity of pancreatitis was evaluated by serum amylase and lipase, histopathological changes and myeloperoxidase assay. Pancreatic acinar cells were incubated with ConA (200 µg/ml) or ConBr (200 µg/ml) and taurolithocholic acid 3-sulfate (TLCS; 500 µM). Necrosis and changes in mitochondrial membrane potential (ΔѰm) were detected by fluorescence confocal microscopy. Treatment (post-insult) with ConA and ConBr decreased pancreatic damage caused by retrograde injection of Na-TC in mice, reducing pancreatic neutrophil infiltration, edema and necrosis. In addition, ConA and ConBr decreased pancreatic acinar cell necrosis and depolarization of ΔѰm caused by TLCS. The inhibition of necrosis was prevented by the lectin domain blockade. In conclusion, ConA and ConBr markedly inhibited in vitro and in vivo damage, effects partly dependent on the interaction with mannose residues on acinar cells. These data support the potential application of these proteins for treatment of acute pancreatitis.
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Affiliation(s)
| | - Álvaro Xavier Franco
- Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Marielle Pires Quaresma
- Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | | | | | - Vanessa Azevedo Mendonça
- Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | | | | | | | | | - Benildo Sousa Cavada
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - David Neil Criddle
- Department of Molecular Physiology & Cell Signalling, ISMIB, University of Liverpool, Liverpool, UK
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22
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Pădureanu V, Florescu D, Pădureanu R, Ghenea A, Gheonea D, Oancea C. Role of antioxidants and oxidative stress in the evolution of acute pancreatitis (Review). Exp Ther Med 2022; 23:197. [PMID: 35126700 PMCID: PMC8794551 DOI: 10.3892/etm.2022.11120] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 10/29/2021] [Indexed: 11/06/2022] Open
Affiliation(s)
- Vlad Pădureanu
- Department of Internal Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Dan Florescu
- Department of Gastroenterology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Rodica Pădureanu
- Department of Internal Medicine, Emergency Clinical County Hospital of Craiova, 200642 Craiova, Romania
| | - Alice Ghenea
- Department of Bacteriology‑Virology‑Parasitology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Dan Gheonea
- Department of Gastroenterology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Carmen Oancea
- Department of Analytical Chemistry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
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Vitamin B 12 Attenuates Acute Pancreatitis by Suppressing Oxidative Stress and Improving Mitochondria Dysfunction via CBS/SIRT1 Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:7936316. [PMID: 34925701 PMCID: PMC8677375 DOI: 10.1155/2021/7936316] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 10/22/2021] [Accepted: 11/06/2021] [Indexed: 02/07/2023]
Abstract
Acute pancreatitis is an inflammatory disorder of the pancreas associated with substantial morbidity and mortality, which is characterized by a rapid depletion of glutathione (GSH). Cysthionine-β-synthase (CBS) is a key coenzyme in GSH synthesis, and its deficiency is related to a variety of clinical diseases. However, whether CBS is involved in the pathogenesis of acute pancreatitis remains unclear. First, we found that CBS was downregulated in both in vivo and in vitro AP models. The pancreatic damage and acinar cell necrosis related to CBS deficiency were significantly improved by VB 12, which stimulated clearance of reactive oxygen species (ROS) by conserving GSH. Furthermore, EX-527 (a specific inhibitor of SIRT1) exposure counteracted the protective effect of VB 12 by promoting oxidative stress and aggravating mitochondrial damage without influencing CBS, indicating that vitamin B12 regulates SIRT1 to improve pancreatical damage by activating CBS. In conclusion, we found that VB 12 protected acute pancreatitis associated with oxidative stress via CBS/SIRT1 pathway.
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Asserghine A, Ashrafi AM, Mukherjee A, Petrlak F, Heger Z, Svec P, Richtera L, Nagy L, Souto RM, Nagy G, Adam V. In Situ Investigation of the Cytotoxic and Interfacial Characteristics of Titanium When Galvanically Coupled with Magnesium Using Scanning Electrochemical Microscopy. ACS APPLIED MATERIALS & INTERFACES 2021; 13:43587-43596. [PMID: 34473486 DOI: 10.1021/acsami.1c10584] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Recently, the cytotoxic properties of galvanically coupled Ti-Mg particles have been shown in different cells. This cytotoxic effect has been attributed mainly to Mg due to its tendency to undergo activation when coupled with Ti, forming a galvanic cell consisting of an anode (Mg) and a cathode (Ti). However, the role of the Ti cathode has been ignored in explaining the cytotoxic effect of Ti-Mg particles due to its high resistance to corrosion. In this work, the role of titanium (Ti) in the cytotoxic mechanism of galvanically coupled Ti-Mg particles was examined. A model galvanic cell (MGC) was prepared to simulate the Mg-Ti particles. The electrochemical reactivity of the Ti sample and the pH change in it due to galvanic coupling with Mg were investigated using scanning electrochemical microscopy (SECM). It was observed that the Ti surface changed from passive to electrochemically active when coupled with Mg. Furthermore, after only 15 min of galvanic coupling with Mg, the pH in the electrolyte volume adjacent to the Ti surface increased to an alkaline pH value. The effects of the galvanic coupling of Ti and Mg, as well as those of the alkaline pH environment, on the viability of Hs27 fibroblast cells were investigated. It was shown that the viability of Hs27 cells significantly diminished when Mg and Ti were galvanically coupled compared to when the two metals were electrically disconnected. Thus, although Ti usually exhibited high corrosion resistance when exposed to physiological environments, an electrochemically active surface was observed when galvanically coupled with Mg, and this surface may participate in electron transfer reactions with chemical species in the neighboring environment; this participation resulted in the increased pH values above its surface and enhanced generation of reactive oxygen species. These features contributed to the development of cytotoxic effects by galvanically coupled Ti-Mg particles.
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Affiliation(s)
- Abdelilah Asserghine
- Department of General and Physical Chemistry, Faculty of Sciences, University of Pecs, Ifjussg u. 6, Pecs 7624, Hungary
- Laboratoire Interfaces et Systemes Electrochimiques (LISE), Sorbonne Universite, CNRS, 4 Place Jussieu, Paris F-75005, France
| | - Amir M Ashrafi
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1665/1, Brno 613 00, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, Brno CZ-612 00, Czech Republic
| | - Atripan Mukherjee
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1665/1, Brno 613 00, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, Brno CZ-612 00, Czech Republic
| | - Frantisek Petrlak
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1665/1, Brno 613 00, Czech Republic
| | - Zbynek Heger
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1665/1, Brno 613 00, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, Brno CZ-612 00, Czech Republic
| | - Pavel Svec
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1665/1, Brno 613 00, Czech Republic
| | - Lukas Richtera
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1665/1, Brno 613 00, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, Brno CZ-612 00, Czech Republic
| | - Livia Nagy
- Department of General and Physical Chemistry, Faculty of Sciences, University of Pecs, Ifjussg u. 6, Pecs 7624, Hungary
- Janos Szentagothai Research Center, University of Pecs, Ifjusag u. 20, Pecs 7624, Hungary
| | - Ricardo M Souto
- Institute of Material Science and Nanotechnology, University of La Laguna, P.O. Box 456, La Laguna E-38200, Tenerife, Canary Islands, Spain
| | - Geza Nagy
- Department of General and Physical Chemistry, Faculty of Sciences, University of Pecs, Ifjussg u. 6, Pecs 7624, Hungary
- Janos Szentagothai Research Center, University of Pecs, Ifjusag u. 20, Pecs 7624, Hungary
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1665/1, Brno 613 00, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, Brno CZ-612 00, Czech Republic
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Yang KH, Tang JY, Chen YN, Chuang YT, Tsai IH, Chiu CC, Li LJ, Chien TM, Cheng YB, Chang FR, Yen CY, Chang HW. Nepenthes Extract Induces Selective Killing, Necrosis, and Apoptosis in Oral Cancer Cells. J Pers Med 2021; 11:871. [PMID: 34575651 PMCID: PMC8469227 DOI: 10.3390/jpm11090871] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 08/29/2021] [Accepted: 08/30/2021] [Indexed: 12/21/2022] Open
Abstract
Ethyl acetate Nepenthes extract (EANT) from Nepenthes thorellii × (ventricosa × maxima) shows antiproliferation and apoptosis but not necrosis in breast cancer cells, but this has not been investigated in oral cancer cells. In the present study, EANT shows no cytotoxicity to normal oral cells but exhibits selective killing to six oral cancer cell lines. They were suppressed by pretreatment of the antioxidant inhibitor N-acetylcysteine (NAC), demonstrating that EANT-induced cell death was mediated by oxidative stress. Concerning high sensitivity to EANT, Ca9-22 and CAL 27 oral cancer cells were chosen for exploring detailed selective killing mechanisms. EANT triggers a mixture of necrosis and apoptosis as determined by annexin V/7-aminoactinmycin D analysis. Still, they show differential switches from necrosis at a low (10 μg/mL) concentration to apoptosis at high (25 μg/mL) concentration of EANT in oral cancer cells. NAC induces necrosis but suppresses annexin V-detected apoptosis in oral cancer cells. Necrostatin 1 (NEC1), a necroptosis inhibitor, moderately suppresses necrosis but induces apoptosis at 10 μg/mL EANT. In contrast, Z-VAD-FMK, a pancaspase inhibitor, slightly causes necrosis but suppresses apoptosis at 10 μg/mL EANT. Furthermore, the flow cytometry-detected pancaspase activity is dose-responsively increased but is suppressed by NAC and ZVAD, although not for NEC1 in oral cancer cells. EANT causes several oxidative stress events such as reactive oxygen species, mitochondrial superoxide, and mitochondrial membrane depolarization. In response to oxidative stresses, the mRNA for antioxidant signaling, such as nuclear factor erythroid 2-like 2 (NFE2L2), catalase (CAT), heme oxygenase 1 (HMOX1), and thioredoxin (TXN), are overexpressed in oral cancer cells. Moreover, EANT also triggers DNA damage, as detected by γH2AX and 8-oxo-2'-deoxyguanosine adducts. The dependence of oxidative stress is validated by the evidence that NAC pretreatment reverts the changes of cellular and mitochondrial stress and DNA damage. Therefore, EANT exhibits antiproliferation involving an oxidative stress-dependent necrosis/apoptosis switch and DNA damage in oral cancer cells.
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Affiliation(s)
- Kun-Han Yang
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Jen-Yang Tang
- School of Post-Baccalaureate Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
- Department of Radiation Oncology, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
| | - Yan-Ning Chen
- Department of Biomedical Science and Environmental Biology, College of Life Science, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-N.C.); (Y.-T.C.); (I.-H.T.); (L.-J.L.)
| | - Ya-Ting Chuang
- Department of Biomedical Science and Environmental Biology, College of Life Science, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-N.C.); (Y.-T.C.); (I.-H.T.); (L.-J.L.)
| | - I-Hsuan Tsai
- Department of Biomedical Science and Environmental Biology, College of Life Science, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-N.C.); (Y.-T.C.); (I.-H.T.); (L.-J.L.)
| | - Chien-Chih Chiu
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Li-Jie Li
- Department of Biomedical Science and Environmental Biology, College of Life Science, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-N.C.); (Y.-T.C.); (I.-H.T.); (L.-J.L.)
| | - Tsu-Ming Chien
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan;
| | - Yuan-Bin Cheng
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan;
| | - Fang-Rong Chang
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan;
| | - Ching-Yu Yen
- Department of Oral and Maxillofacial Surgery Chi-Mei Medical Center, Tainan 71004, Taiwan
- School of Dentistry, Taipei Medical University, Taipei 11031, Taiwan
| | - Hsueh-Wei Chang
- Department of Biomedical Science and Environmental Biology, College of Life Science, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-N.C.); (Y.-T.C.); (I.-H.T.); (L.-J.L.)
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
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Yang H, Luo F, Wei Y, Jiao Y, Qian J, Chen S, Gong Y, Tang L. TGR5 protects against cholestatic liver disease via suppressing the NF-κB pathway and activating the Nrf2/HO-1 pathway. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1158. [PMID: 34430599 PMCID: PMC8350648 DOI: 10.21037/atm-21-2631] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 06/28/2021] [Indexed: 01/13/2023]
Abstract
Background Characterized by the presence of inflammation, fibrosis, and bile duct proliferation, cholestatic liver disease (CLD) affects people of all age groups. Takeda G-protein-coupled receptor (TGR5) has been implicated in the suppression of inflammation via toll-like receptor 4 (TLR4) and nuclear factor kappa B (NF-κB). Kupffer cells and their M1 polarization play important roles in inflammation and cholestatic liver injury via production of pro-inflammatory cytokines. Nevertheless, the function of TGR5 signaling in CLD is largely unknown. Methods We conducted liver tissue experiments, animal experiments, serum marker testing, liver histology analysis, Kupffer cell experiments, RNA extraction and Real-time PCR, western blotting, evaluation of ROS production by flow cytometry and statistical differences were analyzed by student t-test using GraphPad Prism. Results We found that serum bile acid (BA) and TGR5 levels were elevated in patients with cholestasis cirrhosis. Knockout of TGR5 in animals significantly increased bile duct ligation (BDL)-caused liver injury through increasing oxidative stress, promoting M1-predominant polarization of Kupffer cells, and elevating the serum levels of inflammatory cytokines. In contrast, TGR5 activation inhibited ROS production, secretion of pro-inflammatory cytokines, and M1-predominant polarization of Kupffer cells. Moreover, results showed that TGR5 exerted its effects via suppressing NF-κB signaling and activating nuclear factor 2 (Nrf2)/HO-1 signaling. Finally, the effect of TGR5 on cholestatic liver damage was also confirmed in vivo. Conclusions TGR5 activation protected against BDL-induced CLD by both suppressing inflammation via inhibiting the NF-κB pathway and reducing ROS production via activation of Nrf2/HO-1 signaling. These findings show the importance of TGR5 in CLD and provide new insight into therapeutic strategies for CLD.
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Affiliation(s)
- Haojun Yang
- Gastrointestinal Surgery Department, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Fengyong Luo
- School of Graduate, Dalian Medical University, Dalian, China
| | - Yi Wei
- Gastrointestinal Surgery Department, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Yuwen Jiao
- Gastrointestinal Surgery Department, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Jun Qian
- Gastrointestinal Surgery Department, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Shuai Chen
- Gastrointestinal Surgery Department, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Yu Gong
- Gastrointestinal Surgery Department, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Liming Tang
- Gastrointestinal Surgery Department, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
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Escin Sodium Improves the Prognosis of Acute Pancreatitis via Promoting Cell Apoptosis by Suppression of the ERK/STAT3 Signaling Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:9921839. [PMID: 34422214 PMCID: PMC8378969 DOI: 10.1155/2021/9921839] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 05/31/2021] [Accepted: 07/08/2021] [Indexed: 12/16/2022]
Abstract
Acute pancreatitis (AP), an inflammatory disorder of the pancreas, can cause systemic inflammatory responses. Escin Sodium (ES), a natural mixture of triterpene saponins extracted from the dry ripe fruit of Fructus Aesculi or horse chestnut crude, has been demonstrated to have antiedematous, anti-inflammatory, and antiexudative effects. We here aim to investigate the effects of ES pretreatment on AP in vivo and in vitro and explore its potential molecular mechanism. In the present study, we demonstrated that ES pretreatment could apparently decrease amylase and lipase, downregulate inflammatory cytokines, and attenuate pancreatic damage. Additionally, the increased expression of apoptotic-related proteins and the results of flow cytometry demonstrated the effects of ES on promoting apoptosis in acinar cells. Moreover, ES could enhance mitochondrial membrane potential (MMP, ΔΨm) and reactive oxygen species (ROS) level and reduce intracellular calcium concentration, which are closely related to mitochondrial-mediated death. The effect of ES pretreatment on acinar cell apoptosis was furtherly confirmed by the regulatory pathway of the ERK/STAT3 axis. These results suggest that ES attenuates the severity of AP by enhancing cell apoptosis via suppressing the ERK/STAT3 signaling pathway. These findings provide evidence for ES which is treated as a novel and potent therapeutic for the treatment of AP.
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28
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Baghbani E, Noorolyai S, Shanehbandi D, Mokhtarzadeh A, Aghebati-Maleki L, Shahgoli VK, Brunetti O, Rahmani S, Shadbad MA, Baghbanzadeh A, Silvestris N, Baradaran B. Regulation of immune responses through CD39 and CD73 in cancer: Novel checkpoints. Life Sci 2021; 282:119826. [PMID: 34265363 DOI: 10.1016/j.lfs.2021.119826] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 06/22/2021] [Accepted: 07/05/2021] [Indexed: 02/07/2023]
Abstract
The immunosuppressive tumor microenvironment has been implicated in attenuating anti-tumoral immune responses and tumor growth in various cancers. Inhibitory immune checkpoints have been introduced as the primary culprits for developing the immunosuppressive tumor microenvironment. Therefore, a better understanding of the cross-talk between inhibitory immune checkpoints in the tumor microenvironment can pave the way for introducing novel approaches for treating affected patients. Growing evidence indicates that CD39 and CD73, as novel checkpoints, can transform adenosine triphosphate (ATP)-mediated pro-inflammatory tumor microenvironment into an adenosine-mediated immunosuppressive one via the purinergic signaling pathway. Indeed, enzymatic processes of CD39 and CD73 have crucial roles in adjusting the extent, intensity, and chemical properties of purinergic signals. This study aims to review the biological function of CD39 and CD73 and shed light on their significance in regulating anti-tumoral immune responses in various cancers.
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Affiliation(s)
- Elham Baghbani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Noorolyai
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Dariush Shanehbandi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ahad Mokhtarzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Vahid Khaze Shahgoli
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Cancer and Inflammation Research, Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Oronzo Brunetti
- Medical Oncology Unit, IRCCS Istituto Tumori "Giovanni Paolo II", Bari, Italy
| | - Shima Rahmani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdi Abdoli Shadbad
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Baghbanzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nicola Silvestris
- IRCCS Bari, Italy, Medical Oncology Unit, IRCCS Istituto Tumori "Giovanni Paolo II" of Bari, Bari, Italy; Department of Biomedical Sciences and Human Oncology DIMO, University of Bari, Bari, Italy.
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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29
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Ouyang Y, Wen L, Armstrong JA, Chvanov M, Latawiec D, Cai W, Awais M, Mukherjee R, Huang W, Gough PJ, Bertin J, Tepikin AV, Sutton R, Criddle DN. Protective Effects of Necrostatin-1 in Acute Pancreatitis: Partial Involvement of Receptor Interacting Protein Kinase 1. Cells 2021; 10:1035. [PMID: 33925729 PMCID: PMC8145347 DOI: 10.3390/cells10051035] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/22/2021] [Accepted: 04/23/2021] [Indexed: 12/18/2022] Open
Abstract
Acute pancreatitis (AP) is a severe and potentially fatal disease caused predominantly by alcohol excess and gallstones, which lacks a specific therapy. The role of Receptor-Interacting Protein Kinase 1 (RIPK1), a key component of programmed necrosis (Necroptosis), is unclear in AP. We assessed the effects of RIPK1 inhibitor Necrostatin-1 (Nec-1) and RIPK1 modification (RIPK1K45A: kinase dead) in bile acid (TLCS-AP), alcoholic (FAEE-AP) and caerulein hyperstimulation (CER-AP) mouse models. Involvement of collateral Nec-1 target indoleamine 2,3-dioxygenase (IDO) was probed with the inhibitor Epacadostat (EPA). Effects of Nec-1 and RIPK1K45A were also compared on pancreatic acinar cell (PAC) fate in vitro and underlying mechanisms explored. Nec-1 markedly ameliorated histological and biochemical changes in all models. However, these were only partially reduced or unchanged in RIPK1K45A mice. Inhibition of IDO with EPA was protective in TLCS-AP. Both Nec-1 and RIPK1K45A modification inhibited TLCS- and FAEE-induced PAC necrosis in vitro. Nec-1 did not affect TLCS-induced Ca2+ entry in PACs, however, it inhibited an associated ROS elevation. The results demonstrate protective actions of Nec-1 in multiple models. However, RIPK1-dependent necroptosis only partially contributed to beneficial effects, and actions on targets such as IDO are likely to be important.
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Affiliation(s)
- Yulin Ouyang
- Department of Molecular Physiology & Cell Signalling, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (Y.O.); (M.C.); (A.V.T.)
- Brain Cognition and Brain Disease Institute, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Li Wen
- Molecular & Clinical Cancer Medicine, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (L.W.); (J.A.A.); (D.L.); (W.C.); (M.A.); (R.M.); (W.H.); (R.S.)
| | - Jane A. Armstrong
- Molecular & Clinical Cancer Medicine, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (L.W.); (J.A.A.); (D.L.); (W.C.); (M.A.); (R.M.); (W.H.); (R.S.)
| | - Michael Chvanov
- Department of Molecular Physiology & Cell Signalling, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (Y.O.); (M.C.); (A.V.T.)
| | - Diane Latawiec
- Molecular & Clinical Cancer Medicine, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (L.W.); (J.A.A.); (D.L.); (W.C.); (M.A.); (R.M.); (W.H.); (R.S.)
| | - Wenhao Cai
- Molecular & Clinical Cancer Medicine, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (L.W.); (J.A.A.); (D.L.); (W.C.); (M.A.); (R.M.); (W.H.); (R.S.)
| | - Mohammad Awais
- Molecular & Clinical Cancer Medicine, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (L.W.); (J.A.A.); (D.L.); (W.C.); (M.A.); (R.M.); (W.H.); (R.S.)
| | - Rajarshi Mukherjee
- Molecular & Clinical Cancer Medicine, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (L.W.); (J.A.A.); (D.L.); (W.C.); (M.A.); (R.M.); (W.H.); (R.S.)
| | - Wei Huang
- Molecular & Clinical Cancer Medicine, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (L.W.); (J.A.A.); (D.L.); (W.C.); (M.A.); (R.M.); (W.H.); (R.S.)
| | - Peter J. Gough
- Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA 19426, USA; (P.J.G.); (J.B.)
| | - John Bertin
- Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA 19426, USA; (P.J.G.); (J.B.)
| | - Alexei V. Tepikin
- Department of Molecular Physiology & Cell Signalling, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (Y.O.); (M.C.); (A.V.T.)
| | - Robert Sutton
- Molecular & Clinical Cancer Medicine, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (L.W.); (J.A.A.); (D.L.); (W.C.); (M.A.); (R.M.); (W.H.); (R.S.)
| | - David N. Criddle
- Department of Molecular Physiology & Cell Signalling, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (Y.O.); (M.C.); (A.V.T.)
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Vanasco V, Ropolo A, Grasso D, Ojeda DS, García MN, Vico TA, Orquera T, Quarleri J, Alvarez S, Vaccaro MI. Mitochondrial Dynamics and VMP1-Related Selective Mitophagy in Experimental Acute Pancreatitis. Front Cell Dev Biol 2021; 9:640094. [PMID: 33816487 PMCID: PMC8012556 DOI: 10.3389/fcell.2021.640094] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 02/17/2021] [Indexed: 12/12/2022] Open
Abstract
Mitophagy and zymophagy are selective autophagy pathways early induced in acute pancreatitis that may explain the mild, auto limited, and more frequent clinical presentation of this disease. Adequate mitochondrial bioenergetics is necessary for cellular restoration mechanisms that are triggered during the mild disease. However, mitochondria and zymogen contents are direct targets of damage in acute pancreatitis. Cellular survival depends on the recovering possibility of mitochondrial function and efficient clearance of damaged mitochondria. This work aimed to analyze mitochondrial dynamics and function during selective autophagy in pancreatic acinar cells during mild experimental pancreatitis in rats. Also, using a cell model under the hyperstimulation of the G-coupled receptor for CCK (CCK-R), we aimed to investigate the mechanisms involved in these processes in the context of zymophagy. We found that during acute pancreatitis, mitochondrial O2 consumption and ATP production significantly decreased early after induction of acute pancreatitis, with a consequent decrease in the ATP/O ratio. Mitochondrial dysfunction was accompanied by changes in mitochondrial dynamics evidenced by optic atrophy 1 (OPA-1) and dynamin-related protein 1 (DRP-1) differential expression and ultrastructural features of mitochondrial fission, mitochondrial elongation, and mitophagy during the acute phase of experimental mild pancreatitis in rats. Mitophagy was also evaluated by confocal assay after transfection with the pMITO-RFP-GFP plasmid that specifically labels autophagic degradation of mitochondria and the expression and redistribution of the ubiquitin ligase Parkin1. Moreover, we report for the first time that vacuole membrane protein-1 (VMP1) is involved and required in the mitophagy process during acute pancreatitis, observable not only by repositioning around specific mitochondrial populations, but also by detection of mitochondria in autophagosomes specifically isolated with anti-VMP1 antibodies as well. Also, VMP1 downregulation avoided mitochondrial degradation confirming that VMP1 expression is required for mitophagy during acute pancreatitis. In conclusion, we identified a novel DRP1-Parkin1-VMP1 selective autophagy pathway, which mediates the selective degradation of damaged mitochondria by mitophagy in acute pancreatitis. The understanding of the molecular mechanisms involved to restore mitochondrial function, such as mitochondrial dynamics and mitophagy, could be relevant in the development of novel therapeutic strategies in acute pancreatitis.
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Affiliation(s)
- Virginia Vanasco
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina
| | - Alejandro Ropolo
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina
| | - Daniel Grasso
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina
| | - Diego S Ojeda
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Investigaciones Biomédicas en Retrovirus y SIDA (INBIRS), Facultad de Medicina, Buenos Aires, Argentina
| | - María Noé García
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina
| | - Tamara A Vico
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina
| | - Tamara Orquera
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina
| | - Jorge Quarleri
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Investigaciones Biomédicas en Retrovirus y SIDA (INBIRS), Facultad de Medicina, Buenos Aires, Argentina
| | - Silvia Alvarez
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina
| | - María I Vaccaro
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina
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Zhang X, Xin G, Li S, Wei Z, Ming Y, Yuan J, Wen E, Xing Z, Yu K, Li Y, Zhang J, Zhang B, Niu H, Huang W. Dehydrocholic Acid Ameliorates Sodium Taurocholate-Induced Acute Biliary Pancreatitis in Mice. Biol Pharm Bull 2021; 43:985-993. [PMID: 32475920 DOI: 10.1248/bpb.b20-00021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Acute biliary pancreatitis (ABP) with a high mortality rate is an incurable digestive system disease induced by abnormal bile acid regurgitation due to the biliary obstruction. Dehydrocholic acid (DA) alleviates the severity of cholestatic hepatitis related to biliary inflammation, suggesting DA is potential to develop for the incurable ABP management. Here we identified DA potency and explored the underlying mechanism in ABP. Our data showed that DA administration not only reduced typically clinicopathological parameters including serum levels of amylase and lipase but also suppressed pancreatic tissue edema, necrosis and trypsin activation in ABP mice. We also found that DA significantly reduced the necrosis of pancreatic acinar cells induced by sodium taurocholate (NaT). Further experimental data showed the significant inhibitions of DA on mitochondrial membrane potential depolarization, ATP exhaustion, calcium overload and reactive oxygen species (ROS) erupted in acinar cells induced by NaT, indicating DA could avert acinar cell death through protecting the mitochondrial function, scavenging excessive oxidative stress and balancing calcium. The comprehensive study found DA elevated the expression of transcription factor EB (TFEB) in vitro thus to increase the functional lysosome content. Indeed, DA decreased the Microtubule-associated protein light chain 3 (LC3) II/I ratio as well as ubiquitin-binding protein p62 and Parkin expressions in vivo and in vitro, revealing autophagy restoration maybe through the improvement of TFEB-mediated lysosome biogenesis. These data indicate that DA improves ABP through the mitochondrial protection, antioxidant ability enhancement and autophagy recovery. In conclusion, our study proposes a potential therapy strategy for the incurable ABP.
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Affiliation(s)
- Xiaoyu Zhang
- Laboratory of Ethnopharmacology, West China School of Pharmacy, West China Hospital, West China Medical School, Sichuan University
| | - Guang Xin
- Laboratory of Ethnopharmacology, West China School of Pharmacy, West China Hospital, West China Medical School, Sichuan University
| | - Shiyi Li
- Laboratory of Ethnopharmacology, West China School of Pharmacy, West China Hospital, West China Medical School, Sichuan University
| | - Zeliang Wei
- Laboratory of Ethnopharmacology, West China School of Pharmacy, West China Hospital, West China Medical School, Sichuan University
| | - Yue Ming
- Laboratory of Ethnopharmacology, West China School of Pharmacy, West China Hospital, West China Medical School, Sichuan University
| | - Jiyan Yuan
- Laboratory of Ethnopharmacology, West China School of Pharmacy, West China Hospital, West China Medical School, Sichuan University
| | - E Wen
- Laboratory of Ethnopharmacology, West China School of Pharmacy, West China Hospital, West China Medical School, Sichuan University
| | - Zhihua Xing
- Laboratory of Ethnopharmacology, West China School of Pharmacy, West China Hospital, West China Medical School, Sichuan University
| | - Kui Yu
- Laboratory of Ethnopharmacology, West China School of Pharmacy, West China Hospital, West China Medical School, Sichuan University
| | - Youping Li
- Laboratory of Ethnopharmacology, West China School of Pharmacy, West China Hospital, West China Medical School, Sichuan University
| | - Junhua Zhang
- Tianjin University of Traditional Chinese Medicine
| | - Boli Zhang
- Laboratory of Ethnopharmacology, West China School of Pharmacy, West China Hospital, West China Medical School, Sichuan University.,Tianjin University of Traditional Chinese Medicine
| | - Hai Niu
- Laboratory of Ethnopharmacology, West China School of Pharmacy, West China Hospital, West China Medical School, Sichuan University
| | - Wen Huang
- Laboratory of Ethnopharmacology, West China School of Pharmacy, West China Hospital, West China Medical School, Sichuan University
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Tran QT, Tran VH, Sendler M, Doller J, Wiese M, Bolsmann R, Wilden A, Glaubitz J, Modenbach JM, Thiel FG, de Freitas Chama LL, Weiss FU, Lerch MM, Aghdassi AA. Role of Bile Acids and Bile Salts in Acute Pancreatitis: From the Experimental to Clinical Studies. Pancreas 2021; 50:3-11. [PMID: 33370017 PMCID: PMC7748038 DOI: 10.1097/mpa.0000000000001706] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 10/27/2020] [Indexed: 12/12/2022]
Abstract
ABSTRACT Acute pancreatitis (AP) is one of the most common gastroenterological disorders leading to hospitalization. It has long been debated whether biliary AP, about 30% to 50% of all cases, is induced by bile acids (BAs) when they reach the pancreas via reflux or via the systemic blood circulation.Besides their classical function in digestion, BAs have become an attractive research target because of their recently discovered property as signaling molecules. The underlying mechanisms of BAs have been investigated in various studies. Bile acids are internalized into acinar cells through specific G-protein-coupled BA receptor 1 and various transporters. They can further act via different receptors: the farnesoid X, ryanodine, and inositol triphosphate receptor. Bile acids induce a sustained Ca2+ influx from the endoplasmic reticulum and release of Ca2+ from acidic stores into the cytosol of acinar cells. The overload of intracellular Ca2+ results in mitochondrial depolarization and subsequent acinar cell necrosis. In addition, BAs have a biphasic effect on pancreatic ductal cells. A more detailed characterization of the mechanisms through which BAs contribute to the disease pathogenesis and severity will greatly improve our understanding of the underlying pathophysiology and may allow for the development of therapeutic and preventive strategies for gallstone-inducedAP.
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Affiliation(s)
- Quang Trung Tran
- From the Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
- Department of Internal Medicine, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | - Van Huy Tran
- Department of Internal Medicine, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | - Matthias Sendler
- From the Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Julia Doller
- From the Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Mats Wiese
- From the Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Robert Bolsmann
- From the Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Anika Wilden
- From the Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Juliane Glaubitz
- From the Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | | | | | | | - Frank Ulrich Weiss
- From the Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Markus M. Lerch
- From the Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Ali A. Aghdassi
- From the Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
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Hyperbaric Oxygen Ameliorated Acute Pancreatitis in Rats via the Mitochondrial Pathway. Dig Dis Sci 2020; 65:3558-3569. [PMID: 32006213 DOI: 10.1007/s10620-020-06070-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 01/12/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND Acute pancreatitis (AP) is a common disease of the digestive system. The mechanism of hyperbaric oxygen (HBO) therapy for AP is not completely clear. AIMS This study investigated the effects of HBO in AP and whether it acts through the mitochondria-mediated apoptosis pathway. METHODS Eighty male Sprague-Dawley rats were randomly assigned to four groups: control (8 rats), sham (24 rats), AP (24 rats), or AP + HBO (24 rats). AP was induced by ligating the pancreatic duct. The AP + HBO group was given HBO therapy starting at 6 h postinduction. Eight rats in each group were killed on days 1, 2, and 3 postinduction to assess pancreatic injury, mitochondrial membrane potential, ATP level, and expression levels of BAX, Bcl-2, caspase-3, caspase-9, and PARP in pancreatic tissue and blood levels of amylase, lipase, and pro-inflammatory cytokines. RESULTS HBO therapy alleviated the severity of AP and decreased histopathological scores and levels of serum amylase, lipase, and pro-inflammatory cytokines. Compared to AP induction alone, HBO therapy increased expression of the apoptotic protein BAX, caspase-3, caspase-9, and PARP and ATP levels in tissues and decreased antiapoptotic protein Bcl-2 expression levels and the mitochondrial membrane potential on the first day; the results on the second day were partly consistent with those on the first day, while there was no obvious difference on the third day. CONCLUSIONS HBO therapy could induce caspase-dependent apoptosis in AP rats to alleviate pancreatitis, which was possibly triggered by mitochondrial apoptosis pathway regulation of Bcl-2 family members.
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34
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The role of Ca2+ signalling in the physiology and pathophysiology of exocrine pancreas. CURRENT OPINION IN PHYSIOLOGY 2020. [DOI: 10.1016/j.cophys.2020.07.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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35
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Choi S, Kim H. The Remedial Potential of Lycopene in Pancreatitis through Regulation of Autophagy. Int J Mol Sci 2020; 21:ijms21165775. [PMID: 32806545 PMCID: PMC7460830 DOI: 10.3390/ijms21165775] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/05/2020] [Accepted: 08/11/2020] [Indexed: 12/12/2022] Open
Abstract
Autophagy is an evolutionarily conserved process that degrades damaged organelles and recycles macromolecules to support cell survival. However, in certain disease states, dysregulated autophagy can play an important role in cell death. In pancreatitis, the accumulation of autophagic vacuoles and damaged mitochondria and premature activation of trypsinogen are shown in pancreatic acinar cells (PACs), which are the hallmarks of impaired autophagy. Oxidative stress mediates inflammatory signaling and cytokine expression in PACs, and it also causes mitochondrial dysfunction and dysregulated autophagy. Thus, oxidative stress may be a mediator for autophagic impairment in pancreatitis. Lycopene is a natural pigment that contributes to the red color of fruits and vegetables. Due to its antioxidant activity, it inhibited oxidative stress-induced expression of cytokines in experimental models of acute pancreatitis. Lycopene reduces cell death through the activation of 5′-AMP-activated protein kinase-dependent autophagy in certain cells. Therefore, lycopene may ameliorate pancreatitis by preventing oxidative stress-induced impairment of autophagy and/or by directly activating autophagy in PACs.
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M El Agaty S, Ibrahim Ahmed A. Pathophysiological and immunohistochemical analysis of pancreas after renal ischemia/reperfusion injury: protective role of melatonin. Arch Physiol Biochem 2020; 126:264-275. [PMID: 30270672 DOI: 10.1080/13813455.2018.1517182] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Objectives: To assess the remote pancreatic injury following renal ischemia/reperfusion (I/R) and to evaluate the effect of pre-treatment with melatonin on pancreatic structure and functions.Methods: 21 rats were divided equally into sham group, renal I/R group, and melatonin pre-treated renal I/R (Mel-I/R) group.Results: Renal I/R significantly increased serum amylase, fasting glucose and decreased serum insulin in I/R versus sham group. Pancreatic levels of malondialdehyde and tumour necrosis factor alpha were significantly increased associated with diminished glutathione. Immunohistochemical and morphometric analysis revealed significant reduction in insulin immune reactivity, β-cell number, β-cells percentage/total islet cell, percentage area of reactive β-cells, and the average area of islets in I/R versus sham group. These changes were alleviated by pre-treatment with melatonin.Conclusion: Renal I/R produces significant impairment of exocrine and endocrine pancreatic functions together with histological, immunohistochemical and morphometric alterations. Pre-treatment with melatonin significantly mitigates such remote pancreatic injury.
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Affiliation(s)
- Sahar M El Agaty
- Physiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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37
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Chvanov M, Voronina S, Zhang X, Telnova S, Chard R, Ouyang Y, Armstrong J, Tanton H, Awais M, Latawiec D, Sutton R, Criddle DN, Tepikin AV. Knockout of the Mitochondrial Calcium Uniporter Strongly Suppresses Stimulus-Metabolism Coupling in Pancreatic Acinar Cells but Does Not Reduce Severity of Experimental Acute Pancreatitis. Cells 2020; 9:cells9061407. [PMID: 32516955 PMCID: PMC7349284 DOI: 10.3390/cells9061407] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/28/2020] [Accepted: 06/01/2020] [Indexed: 12/13/2022] Open
Abstract
Acute pancreatitis is a frequent disease that lacks specific drug treatment. Unravelling the molecular mechanisms of acute pancreatitis is essential for the development of new therapeutics. Several inducers of acute pancreatitis trigger sustained Ca2+ increases in the cytosol and mitochondria of pancreatic acinar cells. The mitochondrial calcium uniporter (MCU) mediates mitochondrial Ca2+ uptake that regulates bioenergetics and plays an important role in cell survival, damage and death. Aberrant Ca2+ signaling and mitochondrial damage in pancreatic acinar cells have been implicated in the initiation of acute pancreatitis. The primary aim of this study was to assess the involvement of the MCU in experimental acute pancreatitis. We found that pancreatic acinar cells from MCU-/- mice display dramatically reduced mitochondrial Ca2+ uptake. This is consistent with the drastic changes of stimulus-metabolism coupling, manifested by the reduction of mitochondrial NADH/FAD+ responses to cholecystokinin and in the decrease of cholecystokinin-stimulated oxygen consumption. However, in three experimental models of acute pancreatitis (induced by caerulein, taurolithocholic acid 3-sulfate or palmitoleic acid plus ethanol), MCU knockout failed to reduce the biochemical and histological changes characterizing the severity of local and systemic damage. A possible explanation of this surprising finding is the redundancy of damaging mechanisms activated by the inducers of acute pancreatitis.
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Affiliation(s)
- Michael Chvanov
- Department of Cellular and Molecular Physiology, University of Liverpool, Liverpool L69 3BX, UK; (S.V.); (S.T.); (R.C.); (Y.O.); (H.T.); (D.N.C)
- Correspondence: (M.C.); (A.V.T.); Tel.: +44-(0)15-1794-5357 (M.C.); +44-(0)15-1794-5351 (A.V.T.)
| | - Svetlana Voronina
- Department of Cellular and Molecular Physiology, University of Liverpool, Liverpool L69 3BX, UK; (S.V.); (S.T.); (R.C.); (Y.O.); (H.T.); (D.N.C)
| | - Xiaoying Zhang
- Liverpool Pancreatitis Research Group, Royal Liverpool University Hospital, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, UK; (X.Z.); (J.A.); (M.A.); (D.L.); (R.S.)
| | - Svetlana Telnova
- Department of Cellular and Molecular Physiology, University of Liverpool, Liverpool L69 3BX, UK; (S.V.); (S.T.); (R.C.); (Y.O.); (H.T.); (D.N.C)
| | - Robert Chard
- Department of Cellular and Molecular Physiology, University of Liverpool, Liverpool L69 3BX, UK; (S.V.); (S.T.); (R.C.); (Y.O.); (H.T.); (D.N.C)
| | - Yulin Ouyang
- Department of Cellular and Molecular Physiology, University of Liverpool, Liverpool L69 3BX, UK; (S.V.); (S.T.); (R.C.); (Y.O.); (H.T.); (D.N.C)
| | - Jane Armstrong
- Liverpool Pancreatitis Research Group, Royal Liverpool University Hospital, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, UK; (X.Z.); (J.A.); (M.A.); (D.L.); (R.S.)
| | - Helen Tanton
- Department of Cellular and Molecular Physiology, University of Liverpool, Liverpool L69 3BX, UK; (S.V.); (S.T.); (R.C.); (Y.O.); (H.T.); (D.N.C)
| | - Muhammad Awais
- Liverpool Pancreatitis Research Group, Royal Liverpool University Hospital, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, UK; (X.Z.); (J.A.); (M.A.); (D.L.); (R.S.)
| | - Diane Latawiec
- Liverpool Pancreatitis Research Group, Royal Liverpool University Hospital, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, UK; (X.Z.); (J.A.); (M.A.); (D.L.); (R.S.)
| | - Robert Sutton
- Liverpool Pancreatitis Research Group, Royal Liverpool University Hospital, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, UK; (X.Z.); (J.A.); (M.A.); (D.L.); (R.S.)
| | - David N. Criddle
- Department of Cellular and Molecular Physiology, University of Liverpool, Liverpool L69 3BX, UK; (S.V.); (S.T.); (R.C.); (Y.O.); (H.T.); (D.N.C)
| | - Alexei V. Tepikin
- Department of Cellular and Molecular Physiology, University of Liverpool, Liverpool L69 3BX, UK; (S.V.); (S.T.); (R.C.); (Y.O.); (H.T.); (D.N.C)
- Correspondence: (M.C.); (A.V.T.); Tel.: +44-(0)15-1794-5357 (M.C.); +44-(0)15-1794-5351 (A.V.T.)
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Pallagi P, Madácsy T, Varga Á, Maléth J. Intracellular Ca 2+ Signalling in the Pathogenesis of Acute Pancreatitis: Recent Advances and Translational Perspectives. Int J Mol Sci 2020; 21:ijms21114005. [PMID: 32503336 PMCID: PMC7312053 DOI: 10.3390/ijms21114005] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 05/26/2020] [Accepted: 06/01/2020] [Indexed: 12/12/2022] Open
Abstract
Intracellular Ca2+ signalling is a major signal transductional pathway in non-excitable cells, responsible for the regulation of a variety of physiological functions. In the secretory epithelial cells of the exocrine pancreas, such as acinar and ductal cells, intracellular Ca2+ elevation regulates digestive enzyme secretion in acini or fluid and ion secretion in ductal cells. Although Ca2+ is a uniquely versatile orchestrator of epithelial physiology, unregulated global elevation of the intracellular Ca2+ concentration is an early trigger for the development of acute pancreatitis (AP). Regardless of the aetiology, different forms of AP all exhibit sustained intracellular Ca2+ elevation as a common hallmark. The release of endoplasmic reticulum (ER) Ca2+ stores by toxins (such as bile acids or fatty acid ethyl esters (FAEEs)) or increased intrapancreatic pressure activates the influx of extracellular Ca2+ via the Orai1 Ca2+ channel, a process known as store-operated Ca2+ entry (SOCE). Intracellular Ca2+ overload can lead to premature activation of trypsinogen in pancreatic acinar cells and impaired fluid and HCO3- secretion in ductal cells. Increased and unbalanced reactive oxygen species (ROS) production caused by sustained Ca2+ elevation further contributes to cell dysfunction, leading to mitochondrial damage and cell death. Translational studies of AP identified several potential target molecules that can be modified to prevent intracellular Ca2+ overload. One of the most promising drugs, a selective inhibitor of the Orai1 channel that has been shown to inhibit extracellular Ca2+ influx and protect cells from injury, is currently being tested in clinical trials. In this review, we will summarise the recent advances in the field, with a special focus on the translational aspects of the basic findings.
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Affiliation(s)
- Petra Pallagi
- First Department of Medicine, University of Szeged, H6720 Szeged, Hungary; (P.P.); (T.M.); (Á.V.)
- HAS-USZ Momentum Epithelial Cell Signaling and Secretion Research Group, University of Szeged, H6720 Szeged, Hungary
- HCEMM-SZTE Molecular Gastroenterology Research Group, University of Szeged, H6720 Szeged, Hungary
| | - Tamara Madácsy
- First Department of Medicine, University of Szeged, H6720 Szeged, Hungary; (P.P.); (T.M.); (Á.V.)
- HAS-USZ Momentum Epithelial Cell Signaling and Secretion Research Group, University of Szeged, H6720 Szeged, Hungary
- HCEMM-SZTE Molecular Gastroenterology Research Group, University of Szeged, H6720 Szeged, Hungary
| | - Árpád Varga
- First Department of Medicine, University of Szeged, H6720 Szeged, Hungary; (P.P.); (T.M.); (Á.V.)
- HAS-USZ Momentum Epithelial Cell Signaling and Secretion Research Group, University of Szeged, H6720 Szeged, Hungary
- HCEMM-SZTE Molecular Gastroenterology Research Group, University of Szeged, H6720 Szeged, Hungary
| | - József Maléth
- First Department of Medicine, University of Szeged, H6720 Szeged, Hungary; (P.P.); (T.M.); (Á.V.)
- HAS-USZ Momentum Epithelial Cell Signaling and Secretion Research Group, University of Szeged, H6720 Szeged, Hungary
- HCEMM-SZTE Molecular Gastroenterology Research Group, University of Szeged, H6720 Szeged, Hungary
- Correspondence: or ; Tel.: +36-(62)-342-877 or +36-70-41-66500
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Cholic Acid Stimulates MMP-9 in Human Colon Cancer Cells via Activation of MAPK, AP-1, and NF-κB Activity. Int J Mol Sci 2020; 21:ijms21103420. [PMID: 32408577 PMCID: PMC7279292 DOI: 10.3390/ijms21103420] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/07/2020] [Accepted: 05/10/2020] [Indexed: 12/14/2022] Open
Abstract
Matrix metalloproteinase-9 (MMP-9) plays a crucial role in cell invasion and cancer metastasis. In this study, we showed that cholic acid (CA), a major primary bile acid, can induce MMP-9 expression in colon cancer HT29 and SW620 cells. CA increased reactive oxygen species (ROS) production and also activated phosphorylation of ERK1/2, JNK, and p38 MAPK. Specific inhibitors and mutagenesis studies showed that ERK1/2 and JNK functioned as upstream signals in the activation of AP-1, and p38 MAPK functioned as an upstream signal in the activation of NF-κB. N-acetyl-L-cysteine (NAC, an ROS scavenger) and diphenyleneiodonium chloride (DPI, an NADPH oxidase inhibitor) inhibited CA-induced activation of ERK1/2, JNK, and p38 MAPK, indicating that ROS production by NADPH oxidase could be the furthest upstream signal in MMP-9 expression. Colon cancer cells pretreated with CA showed remarkably enhanced invasiveness. Such enhancement was partially abrogated by MMP-9-neutralizing antibodies. These results demonstrate that CA could induce MMP-9 expression via ROS-dependent ERK1/2, JNK-activated AP-1, and p38-MAPK-activated NF-κB signaling pathways, which in turn stimulate cell invasion in human colon cancer cells.
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Swain SM, Romac JMJ, Shahid RA, Pandol SJ, Liedtke W, Vigna SR, Liddle RA. TRPV4 channel opening mediates pressure-induced pancreatitis initiated by Piezo1 activation. J Clin Invest 2020; 130:2527-2541. [PMID: 31999644 PMCID: PMC7190979 DOI: 10.1172/jci134111] [Citation(s) in RCA: 114] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 01/23/2020] [Indexed: 12/24/2022] Open
Abstract
Elevated pressure in the pancreatic gland is the central cause of pancreatitis following abdominal trauma, surgery, endoscopic retrograde cholangiopancreatography, and gallstones. In the pancreas, excessive intracellular calcium causes mitochondrial dysfunction, premature zymogen activation, and necrosis, ultimately leading to pancreatitis. Although stimulation of the mechanically activated, calcium-permeable ion channel Piezo1 in the pancreatic acinar cell is the initial step in pressure-induced pancreatitis, activation of Piezo1 produces only transient elevation in intracellular calcium that is insufficient to cause pancreatitis. Therefore, how pressure produces a prolonged calcium elevation necessary to induce pancreatitis is unknown. We demonstrate that Piezo1 activation in pancreatic acinar cells caused a prolonged elevation in intracellular calcium levels, mitochondrial depolarization, intracellular trypsin activation, and cell death. Notably, these effects were dependent on the degree and duration of force applied to the cell. Low or transient force was insufficient to activate these pathological changes, whereas higher and prolonged application of force triggered sustained elevation in intracellular calcium, leading to enzyme activation and cell death. All of these pathological events were rescued in acinar cells treated with a Piezo1 antagonist and in acinar cells from mice with genetic deletion of Piezo1. We discovered that Piezo1 stimulation triggered transient receptor potential vanilloid subfamily 4 (TRPV4) channel opening, which was responsible for the sustained elevation in intracellular calcium that caused intracellular organelle dysfunction. Moreover, TRPV4 gene-KO mice were protected from Piezo1 agonist- and pressure-induced pancreatitis. These studies unveil a calcium signaling pathway in which a Piezo1-induced TRPV4 channel opening causes pancreatitis.
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Affiliation(s)
- Sandip M. Swain
- Department of Medicine, Duke University, Durham, North Carolina, USA
| | | | - Rafiq A. Shahid
- Department of Medicine, Duke University, Durham, North Carolina, USA
| | | | | | - Steven R. Vigna
- Department of Medicine, Duke University, Durham, North Carolina, USA
- Department of Cell Biology, Duke University, Durham, North Carolina, USA
| | - Rodger A. Liddle
- Department of Medicine, Duke University, Durham, North Carolina, USA
- Department of Veterans Affairs Health Care System, Durham, North Carolina, USA
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Tanshinone IIA Protects against Acute Pancreatitis in Mice by Inhibiting Oxidative Stress via the Nrf2/ROS Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:5390482. [PMID: 32322336 PMCID: PMC7168729 DOI: 10.1155/2020/5390482] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 02/20/2020] [Accepted: 03/13/2020] [Indexed: 02/05/2023]
Abstract
Background Danshen (Salvia miltiorrhiza Bunge) and its main active component Tanshinone IIA (TSA) are clinically used in China. However, the effects of TSA on acute pancreatitis (AP) and its potential mechanism have not been investigated. In this study, our objective was to investigate the protective effects of TSA against AP via three classic mouse models. Methods Mouse models of AP were established by caerulein, sodium taurocholate, and L-arginine, separately. Pancreatic and pulmonary histopathological characteristics and serum amylase and lipase levels were evaluated, and changes in oxidative stress injury and the ultrastructure of acinar cells were observed. The reactive oxygen species (ROS) inhibitor N-Acetylcysteine (NAC) and nuclear factor erythroid 2-related factor 2 (Nrf2) knockout mice were applied to clarify the protective mechanism of the drug. Results In the caerulein-induced AP model, TSA administration reduced serum amylase and lipase levels and ameliorated the histopathological manifestations of AP in pancreatic tissue. Additionally, TSA appreciably decreased ROS release, protected the structures of mitochondria and the endoplasmic reticulum, and increased the protein expression of Nrf2 and heme oxygenase 1 of pancreatic tissue. In addition, the protective effects of TSA against AP were counteracted by blocking the oxidative stress (NAC administration and Nrf2 knockout in mice). Furthermore, we found that TSA protects pancreatic tissue from damage and pancreatitis-associated lung injury in two additional mouse models induced by sodium taurocholate and by L-arginine. Conclusion Our data confirmed the protective effects of TSA against AP in mice by inhibiting oxidative stress via the Nrf2/ROS pathway.
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Sirt6 opposes glycochenodeoxycholate-induced apoptosis of biliary epithelial cells through the AMPK/PGC-1α pathway. Cell Biosci 2020; 10:43. [PMID: 32206298 PMCID: PMC7083051 DOI: 10.1186/s13578-020-00402-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 03/06/2020] [Indexed: 12/12/2022] Open
Abstract
Background Induction of biliary epithelial cell apoptosis by toxic bile acids is involved in the development of cholestatic disease, but the underlying molecular mechanism is not clear. The purpose of this study was to investigate the molecular mechanisms involved in Sirt6 protection against the apoptosis of human intrahepatic biliary epithelial cells (HiBEC) induced by the bile acid glycochenodeoxycholate (GCDC). Results Sirt6 was either overexpressed or knocked down in HiBEC, with or without GCDC pretreatment. The CCK-8 assay was used to assess cell viability and, Hoechst 33258 staining was used to determine apoptotic rate. Mitochondrial DNA (mtDNA) copy number, malondialdehyde (MDA) and reactive oxygen species (ROS) production were detected to evaluate the severity of the mitochondrial dysfunction and oxidative stress. The mRNA and protein levels of PGC-1α, Nrf1, and Nrf2 were analyzed using RT-qPCR and western blot assay. The results showed that Sirt6 opposed GCDC-induced apoptosis in HiBEC via up-regulating PGC-1α expression and stabilizing mtDNA. We used agonists and inhibitors of AMPK to demonstrate that Sirt6 increased PGC-1α expression through the AMPK pathway whereas GCDC had the opposite effect. Finally, western blot, luciferase assay, and co-immunoprecipitation were used to describe a direct interaction and acetylation modification of PGC-1α by Sirt6. Conclusion Our data illuminated that Sirt6 ameliorated GCDC-induced HiBEC apoptosis by upregulating PGC-1α expression through the AMPK pathway and its deacetylation effect.
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Fanczal J, Pallagi P, Görög M, Diszházi G, Almássy J, Madácsy T, Varga Á, Csernay-Biró P, Katona X, Tóth E, Molnár R, Rakonczay Z, Hegyi P, Maléth J. TRPM2-mediated extracellular Ca 2+ entry promotes acinar cell necrosis in biliary acute pancreatitis. J Physiol 2020; 598:1253-1270. [PMID: 31917868 DOI: 10.1113/jp279047] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 12/24/2019] [Indexed: 01/05/2023] Open
Abstract
KEY POINTS Acute biliary pancreatitis is a significant clinical challenge as currently no specific pharmaceutical treatment exists. Intracellular Ca2+ overload, increased reactive oxygen species (ROS) production, mitochondrial damage and intra-acinar digestive enzyme activation caused by bile acids are hallmarks of acute biliary pancreatitis. Transient receptor potential melastatin 2 (TRPM2) is a non-selective cation channel that has recently emerged as an important contributor to oxidative-stress-induced cellular Ca2+ overload across different diseases. We demonstrated that TRPM2 is expressed in the plasma membrane of mouse pancreatic acinar and ductal cells, which can be activated by increased oxidative stress induced by H2 O2 treatment and contributed to bile acid-induced extracellular Ca2+ influx in acinar cells, which promoted acinar cell necrosis in vitro and in vivo. These results suggest that the inhibition of TRPM2 may be a potential treatment option for biliary pancreatitis. ABSTRACT Acute biliary pancreatitis poses a significant clinical challenge as currently no specific pharmaceutical treatment exists. Disturbed intracellular Ca2+ signalling caused by bile acids is a hallmark of the disease, which induces increased reactive oxygen species (ROS) production, mitochondrial damage, intra-acinar digestive enzyme activation and cell death. Because of this mechanism of action, prevention of toxic cellular Ca2+ overload is a promising therapeutic target. Transient receptor potential melastatin 2 (TRPM2) is a non-selective cation channel that has recently emerged as an important contributor to oxidative-stress-induced cellular Ca2+ overload across different diseases. However, the expression and possible functions of TRPM2 in the exocrine pancreas remain unknown. Here we found that TRPM2 is expressed in the plasma membrane of mouse pancreatic acinar and ductal cells, which can be activated by increased oxidative stress induced by H2 O2 treatment. TRPM2 activity was found to contribute to bile acid-induced extracellular Ca2+ influx in acinar cells, but did not have the same effect in ductal cells. The generation of intracellular ROS in response to bile acids was remarkably higher in pancreatic acinar cells compared to isolated ducts, which can explain the difference between acinar and ductal cells. This activity promoted acinar cell necrosis in vitro independently from mitochondrial damage or mitochondrial fragmentation. In addition, bile-acid-induced experimental pancreatitis was less severe in TRPM2 knockout mice, whereas the lack of TRPM2 had no protective effect in cerulein-induced acute pancreatitis. Our results suggest that the inhibition of TRPM2 may be a potential treatment option for biliary pancreatitis.
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Affiliation(s)
- Júlia Fanczal
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary
| | - Petra Pallagi
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary.,HAS-USZ Momentum Epithelial Cell Signalling and Secretion Research Group, University of Szeged, Szeged, Hungary
| | - Marietta Görög
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary.,HAS-USZ Momentum Epithelial Cell Signalling and Secretion Research Group, University of Szeged, Szeged, Hungary
| | - Gyula Diszházi
- Department of Physiology, University of Debrecen, Debrecen, Hungary
| | - János Almássy
- Department of Physiology, University of Debrecen, Debrecen, Hungary
| | - Tamara Madácsy
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary.,HAS-USZ Momentum Epithelial Cell Signalling and Secretion Research Group, University of Szeged, Szeged, Hungary
| | - Árpád Varga
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary.,HAS-USZ Momentum Epithelial Cell Signalling and Secretion Research Group, University of Szeged, Szeged, Hungary
| | - Péter Csernay-Biró
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary
| | - Xénia Katona
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary.,HAS-USZ Momentum Epithelial Cell Signalling and Secretion Research Group, University of Szeged, Szeged, Hungary
| | - Emese Tóth
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary
| | - Réka Molnár
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary
| | - Zoltán Rakonczay
- Department of Pathophysiology, University of Szeged, Szeged, Hungary
| | - Péter Hegyi
- HAS-USZ Momentum Translational Gastroenterology Research Group, University of Szeged, Szeged, Hungary.,Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - József Maléth
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary.,HAS-USZ Momentum Epithelial Cell Signalling and Secretion Research Group, University of Szeged, Szeged, Hungary.,Department of Public Health, University of Szeged, Szeged, Hungary
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Xia D, Halder B, Godoy C, Chakraborty A, Singla B, Thomas E, Shuja JB, Kashif H, Miller L, Csanyi G, Sabbatini ME. NADPH oxidase 1 mediates caerulein-induced pancreatic fibrosis in chronic pancreatitis. Free Radic Biol Med 2020; 147:139-149. [PMID: 31837426 PMCID: PMC7227077 DOI: 10.1016/j.freeradbiomed.2019.11.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 11/27/2019] [Indexed: 02/07/2023]
Abstract
Inflammatory disorders of the pancreas are divided into acute (AP) and chronic (CP) forms. Both states of pancreatitis are a result of pro-inflammatory mediators, including reactive oxygen species (ROS). One of the sources of ROS is NADPH oxidase (Nox). The rodent genome encodes Nox1-4, Duox1 and Duox2. Our purpose was to assess the extent to which Nox enzymes contribute to the pathogenesis of both AP and CP using Nox-deficient mice. Using RT-PCR, Nox1 was found in both isolated mouse pancreatic acini and pancreatic stellate cells (PaSCs). Subsequently, mice with genetically deleted Nox1 were further studied and showed that the histo-morphologic characteristics of caerulein-induced CP, but not caerulein-induced AP, was ameliorated in Nox1 KO mice. We also found that the lack of Nox1 impaired caerulein-induced ROS generation in PaSCs. Using Western blotting, we found that AKT mediates the fibrotic effect of Nox1 in a mouse model of CP. We also found a decrease in phospho-ERK and p38MAPK levels in Nox1 KO mice with CP, but not with AP. Both CP-induced TGF-β up-regulation and NF-ĸB activation were impaired in pancreas from Nox1 KO mice. Western blotting indicated increases in proteins involved in fibrosis and acinar-to-ductal metaplasia in WT mice with CP. No change in those proteins were observed in Nox1 KO mice. The lack of Nox1 lowered mRNA levels of CP-induced matrix metalloproteinase MMP-9 and E-cadherin repressor Twist in PaSCs. CONCLUSION: Nox1-derived ROS in PaSCs mediate the fibrotic process of CP by activating the downstream redox-sensitive signaling pathways AKT and NF-ĸB, up-regulating MMP-9 and Twist, and producing α-smooth muscle actin and collagen I and III.
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Affiliation(s)
- Di Xia
- Department of Biological Sciences, Augusta University, Augusta, GA, USA
| | - Bithika Halder
- Department of Biological Sciences, Augusta University, Augusta, GA, USA
| | - Catalina Godoy
- Department of Biological Sciences, Augusta University, Augusta, GA, USA
| | | | - Bhupesh Singla
- Vascular Biology Center, Augusta University, Augusta, GA, USA
| | - Eyana Thomas
- Department of Biological Sciences, Augusta University, Augusta, GA, USA
| | - Jasim B Shuja
- Department of Biological Sciences, Augusta University, Augusta, GA, USA
| | - Hisham Kashif
- Department of Biological Sciences, Augusta University, Augusta, GA, USA
| | - Laurence Miller
- Department of Psychological Sciences, Augusta University, Augusta, GA, USA
| | - Gabor Csanyi
- Vascular Biology Center, Augusta University, Augusta, GA, USA; Department of Pharmacology and Toxicology, Augusta University, Augusta, GA, USA
| | - Maria E Sabbatini
- Department of Biological Sciences, Augusta University, Augusta, GA, USA.
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Hong W, Zimmer V, Basharat Z, Zippi M, Stock S, Geng W, Bao X, Dong J, Pan J, Zhou M. Association of total cholesterol with severe acute pancreatitis: A U-shaped relationship. Clin Nutr 2020; 39:250-257. [PMID: 30772093 DOI: 10.1016/j.clnu.2019.01.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 01/09/2019] [Accepted: 01/23/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS There is no consensus on relationship between total cholesterol levels and incidence of severe acute pancreatitis (SAP). The aim of this study was to investigate the relation between total cholesterol (TC) and the disease severity of acute pancreatitis. METHODS We conducted a cross-sectional study on patients with acute pancreatitis between April 2012 and December 2015 in a university hospital. Fasting blood total cholesterol (TC) was assayed within 24 h of admission, as well as 3-5 days, 7-9 days and 13-15 days during hospitalization. Time interval before admission, age, gender, Body Mass Index, hypertension, diabetes mellitus, alcohol consumption, smoking, etiology and albumin were recorded as potential confounding factors. To assess the pattern of relationship of TC and SAP, we used restricted cubic spline analysis with multivariable logistic regression analysis. We also compared total cholesterol concentrations between patients with or without SAP at different time points. RESULTS 648 patients (median age: 47.5 years; 62.4% man) were enrolled. The incidence of SAP was 10%. A U-shaped association of TC level within 24 h of admission with severity was observed in acute pancreatitis. Patients with low TC levels (<160 mg/dL) and high TC levels (>240 mg/dL) had a significantly higher incidence of SAP and protracted hospital stays when compared to moderate TC levels (160-240 mg/dL). Low total cholesterol levels (OR 2.72; 95 %eCI 1.27-5.83; P = 0.01) and high total cholesterol levels (OR 2.54; 95 %eCI 1.09-5.89; P = 0.03), were still independently associated with development of SAP after adjusting for potential confounding factors. Longitudinal cohort study indicated that patients with SAP had lower total cholesterol concentrations among 3-15 days after admission compared to patients without SAP (P < 0.001). CONCLUSIONS Both low TC level (<160 mg/dL) and high TC (>240 mg/dL) within 24 h of admission is independently associated with an increased risk of SAP.
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Affiliation(s)
- Wandong Hong
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China; Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, Wenzhou, Zhejiang, People's Republic of China.
| | - Vincent Zimmer
- Department of Medicine II, Saarland University Medical Center, Saarland University, Homburg, 66424, Germany; Department of Medicine, Marienhausklinik St. Josef Kohlhof, Neunkirchen, 66539, Germany.
| | - Zarrin Basharat
- Jamil-ur-Rahman Center for Genome Research, Dr. Panjwani Centre for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan; Laboratoire Génomique, Bioinformatique et Applications, Conservatoire National des Arts et 11 Métiers, Paris, 75003, France.
| | - Maddalena Zippi
- Unit of Gastroenterology and Digestive Endoscopy, Sandro Pertini Hospital, Rome, Italy.
| | - Simon Stock
- Department of Surgery, World Mate Emergency Hospital, Battambang, Cambodia.
| | - Wujun Geng
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China.
| | - Xueqin Bao
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China.
| | - Junfeng Dong
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China.
| | - Jingye Pan
- Intensive Care Unit, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China.
| | - Mengtao Zhou
- Department of Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China.
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Neutrophil Gelatinase-Associated Lipocalin Protects Acinar Cells From Cerulein-Induced Damage During Acute Pancreatitis. Pancreas 2020; 49:1297-1306. [PMID: 33122517 PMCID: PMC8056863 DOI: 10.1097/mpa.0000000000001690] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Elevated neutrophil gelatinase-associated lipocalin (NGAL) is a promising marker for severe acute pancreatitis (SAP) and multiple organ failure, suggesting systemic and local contributions during pancreatitis. We investigated the role of NGAL locally on acinar cell biology. METHODS Western blot, reverse transcriptase-polymerase chain reaction, and immunohistochemistry analysis were performed to analyze the levels of NGAL receptors, apoptotic and regeneration markers, and 4-hydroxynonenal (4HNE) levels, 3-[4,5-Dimethylthiazole-2-yl]-2, 5-diphenyltetrazolium bromide assay, and annexin V/propidium iodide staining were used to evaluate cell viability, and effect on endothelial cells was accessed by endothelial permeability assay. RESULTS Cerulein treatment at 20 μM for 12 hours significantly reduced acinar cell viability by 40%, which was rescued by NGAL at 800 and 1600 ng/mL concentrations, observed during mild and SAP, respectively. Mechanistically, NGAL significantly reduced the levels of reactive oxygen species and 4HNE adduct formation in a 24p3R-dependent manner and upregulated the expression of acinar cell regeneration markers, like CDK-2, CDK-4, and C-myc. However, SAP levels of NGAL significantly increased endothelial permeability and downregulated the levels of ZO-1, and cerulein treatment in NGAL knockout mice showed increased levels of 4HNE adducts. CONCLUSIONS Neutrophil gelatinase-associated lipocalin rescues intracellular reactive oxygen species during pancreatitis and promotes survival and regeneration of acinar cells.
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Morton JC, Armstrong JA, Sud A, Tepikin AV, Sutton R, Criddle DN. Altered Bioenergetics of Blood Cell Sub-Populations in Acute Pancreatitis Patients. J Clin Med 2019; 8:jcm8122201. [PMID: 31847184 PMCID: PMC6947319 DOI: 10.3390/jcm8122201] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 12/09/2019] [Accepted: 12/12/2019] [Indexed: 01/15/2023] Open
Abstract
Acute pancreatitis (AP) is a debilitating, sometimes fatal disease, marked by local injury and systemic inflammation. Mitochondrial dysfunction is a central feature of pancreatic damage in AP, however, its involvement in circulating blood cell subtypes is unknown. This study compared mitochondrial bioenergetics in circulating leukocytes from AP patients and healthy volunteers: 15 patients with mild to severe AP were compared to 10 healthy controls. Monocytes, lymphocytes and neutrophils were isolated using magnetic activated cell sorting and mitochondrial bioenergetics profiles of the cell populations determined using a Seahorse XF24 flux analyser. Rates of oxygen consumption (OCR) and extracellular acidification (ECAR) under conditions of electron transport chain (ETC) inhibition (“stress” test) informed respiratory and glycolytic parameters, respectively. Phorbol ester stimulation was used to trigger the oxidative burst. Basal OCR in all blood cell subtypes was similar in AP patients and controls. However, maximal respiration and spare respiratory capacity of AP patient lymphocytes were decreased, indicating impairment of functional capacity. A diminished oxidative burst occurred in neutrophils from AP patients, compared to controls, whereas this was enhanced in both monocytes and lymphocytes. The data demonstrate important early alterations of bioenergetics in blood cell sub-populations from AP patients, which imply functional alterations linked to clinical disease progression.
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Affiliation(s)
- Jack C. Morton
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, UK; (J.C.M.); (A.V.T.)
| | - Jane A. Armstrong
- Department of Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, UK; (J.A.A.); (A.S.); (R.S.)
| | - Ajay Sud
- Department of Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, UK; (J.A.A.); (A.S.); (R.S.)
| | - Alexei V. Tepikin
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, UK; (J.C.M.); (A.V.T.)
| | - Robert Sutton
- Department of Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, UK; (J.A.A.); (A.S.); (R.S.)
| | - David N. Criddle
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, UK; (J.C.M.); (A.V.T.)
- Correspondence: ; Tel.: +44-151-794-5304; Fax: +44-151-794-5327
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Cen ME, Wang F, Su Y, Zhang WJ, Sun B, Wang G. Gastrointestinal microecology: a crucial and potential target in acute pancreatitis. Apoptosis 2019; 23:377-387. [PMID: 29926313 DOI: 10.1007/s10495-018-1464-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In the early stage of acute pancreatitis (AP), abundant cytokines induced by local pancreatic inflammation enter the bloodstream, further cause systemic inflammatory response syndrome (SIRS) by "trigger effect", which eventually leads to multiple organ dysfunction syndrome (MODS). During SIRS and MODS, the intestinal barrier function was seriously damaged accompanied by the occurrence of gut-derived infection which forms a "second hit summit" by inflammatory overabundance. Gastrointestinal microecology, namely the biologic barrier, could be transformed into a pathogenic state, which is called microflora dysbiosis when interfered by the inflammatory stress during AP. More and more evidences indicate that gastrointestinal microflora dysbiosis plays a key role in "the second hit" induced by AP gut-derived infection. Therefore, the maintenance of gastrointestinal microecology balance is likely to provide an effective method in modulating systemic infection of AP. This article reviewed the progress of gastrointestinal microecology in AP to provide a reference for deeply understanding the pathogenic mechanisms of AP and identifying new therapeutic targets.
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Affiliation(s)
- Meng-Er Cen
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, 23 Youzheng Street, Nangang District, Harbin, 150001, Heilongjiang, China.,Kidney Disease Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.,Key Laboratory of Nephropathy, Hangzhou, Zhejiang, China
| | - Feng Wang
- Department of Ophthalmology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Ying Su
- Department of Ophthalmology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Wang-Jun Zhang
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, 23 Youzheng Street, Nangang District, Harbin, 150001, Heilongjiang, China
| | - Bei Sun
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, 23 Youzheng Street, Nangang District, Harbin, 150001, Heilongjiang, China
| | - Gang Wang
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, 23 Youzheng Street, Nangang District, Harbin, 150001, Heilongjiang, China.
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Hypoxia-Inducible Factor-1 α Knockdown Plus Glutamine Supplementation Attenuates the Predominance of Necrosis over Apoptosis by Relieving Cellular Energy Stress in Acute Pancreatitis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:4363672. [PMID: 31281575 PMCID: PMC6589200 DOI: 10.1155/2019/4363672] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 05/09/2019] [Indexed: 12/25/2022]
Abstract
The present study was conducted to investigate the effect and potential mechanism of hypoxia-inducible factor-1α (HIF-1α) genetic inhibition plus glutamine (Gln) supplementation on necrosis-apoptosis imbalance during acute pancreatitis (AP), with a specific focus on the regulations of intracellular energy metabolism status. Wistar rats and AR42J cells were used to establish AP models. When indicated, a HIF-1α knockdown with or without a Gln supplementation was administered. In vivo, local and systemic inflammatory injuries were assessed by serum cytokine measurement, H&E staining, and transmission electron microscope (TEM) observation of pancreatic tissue. In vitro, intracellular energy metabolism status was evaluated by measuring the intracellular adenosine triphosphate (ATP), lactic acid, and Ca2+ concentrations and the mitochondrial potential. In addition, changes in the apoptotic activity were analyzed using TUNEL staining in vivo and an apoptosis assay in vitro. HIF-1α knockdown alleviated AP-related inflammatory injury as indicated by the measurements of serum cytokines and examinations of TEM and H&E staining of pancreatic tissues. HIF-1α knockdown played an antioxidative role against AP-related injuries by preventing the increase in the intracellular Ca2+ concentration and the decrease in the mitochondrial membrane potential and subsequently by suppressing the glycolysis pathway and increasing energy anabolism in AR42J cells after AP induction. Apoptosis was significantly upregulated when HIF-1α was knocked down before AP induction due to an attenuation of the translocation of nuclear factor-kappa B to the nuclei. Furthermore, these merits of HIF-1α knockdown in the relief of the metabolic stress and upregulation of apoptosis were more significant when Gln was administered concomitantly. In conclusion, Gln-supplemented HIF-1α knockdown might be promising for the future management of AP by relieving the intracellular energy stress, thereby attenuating the predominance of necrosis over apoptosis.
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Hu Y, Dai J, Zong G, Xiao J, Guo X, Dai Y, Lu Z, Wan R. Restoration of p53 acetylation by HDAC inhibition permits the necrosis/apoptosis switch of pancreatic ainar cell during experimental pancreatitis in mice. J Cell Physiol 2019; 234:21988-21998. [PMID: 31058328 DOI: 10.1002/jcp.28761] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 04/07/2019] [Accepted: 04/10/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Yangyang Hu
- Shanghai Key Laboratory of Pancreatic Disease, Department of Gastroenterology, Shanghai General Hospital Shanghai Jiaotong University School of Medicine Shanghai China
| | - Juanjuan Dai
- Shanghai Key Laboratory of Pancreatic Disease, Department of Gastroenterology, Shanghai General Hospital Shanghai Jiaotong University School of Medicine Shanghai China
| | - Guanzhao Zong
- Shanghai Key Laboratory of Pancreatic Disease, Department of Gastroenterology, Shanghai General Hospital Shanghai Jiaotong University School of Medicine Shanghai China
| | - Jingbo Xiao
- Shanghai Key Laboratory of Pancreatic Disease, Department of Gastroenterology, Shanghai General Hospital Shanghai Jiaotong University School of Medicine Shanghai China
| | - Xingya Guo
- Shanghai Key Laboratory of Pancreatic Disease, Department of Gastroenterology, Shanghai General Hospital Shanghai Jiaotong University School of Medicine Shanghai China
| | - Yiqi Dai
- Shanghai Key Laboratory of Pancreatic Disease, Department of Gastroenterology, Shanghai General Hospital Shanghai Jiaotong University School of Medicine Shanghai China
| | - Zhanjun Lu
- Shanghai Key Laboratory of Pancreatic Disease, Department of Gastroenterology, Shanghai General Hospital Shanghai Jiaotong University School of Medicine Shanghai China
| | - Rong Wan
- Shanghai Key Laboratory of Pancreatic Disease, Department of Gastroenterology, Shanghai General Hospital Shanghai Jiaotong University School of Medicine Shanghai China
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