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Choi JW, Shin J, Zhou Z, Song HJ, Bae GS, Kim MS, Park SJ. Myricetin ameliorates the severity of pancreatitis in mice by regulating cathepsin B activity and inflammatory cytokine production. Int Immunopharmacol 2024; 136:112284. [PMID: 38823179 DOI: 10.1016/j.intimp.2024.112284] [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: 04/01/2024] [Revised: 05/05/2024] [Accepted: 05/14/2024] [Indexed: 06/03/2024]
Abstract
Cathepsin B (CTSB) and inflammatory cytokines are critical in initiating and developing pancreatitis. Calcineurin, a central calcium (Ca2+)-responsive signaling molecule, mediates acinar cell death and inflammatory responses leading to pancreatitis. However, the detailed mechanisms for regulating CTSB activity and inflammatory cytokine production are unknown. Myricetin (MC) exhibits various biological activities, including anti-inflammatory effects. Here, we aimed to investigate MC effects on pancreatitis and the underlying mechanisms. Prophylactic and therapeutic MC treatment ameliorated the severity of cerulein-, L-arginine-, and PDL-induced acute pancreatitis (AP). The inhibition of CTSB activity by MC was mediated via decreased calcineurin activity and macrophage infiltration, not neutrophils infiltration, into the pancreas. Additionally, calcineurin activity inhibition by MC prevented the phosphorylation of Ca2+/CaM-dependent protein kinase kinase 2 (CaMKK2) during AP, resulting in the inhibition of CaMKIV phosphorylation and adenosine monophosphate-activated protein kinase (AMPK) dephosphorylation. Furthermore, MC reduced nuclear factor-κB activation by modulating the calcineurin-CaMKIV-IKKα/β-Iκ-Bα and calcineurin-AMPK-sirtuin1 axes, resulting in reduced production of tumor necrosis factor-α, interleukin (IL)-1β, and IL-6. Our results showed that MC alleviated AP severity by inhibiting acinar cell death and inflammatory responses, suggesting that MC as a calcineurin and CaMKK2 signaling modulator may be a potential treatment for AP.
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Affiliation(s)
- Ji-Won Choi
- Department of Herbology, School of Korean Medicine, Wonkwang University, Iksan-daero 460, Iksan, Jeollabuk-do 54538, Republic of Korea; Hanbang Cardio-Renal Syndrome Research Center, School of Korean Medicine, Wonkwang University, Iksan-daero 460, Iksan, Jeollabuk-do 54538, Republic of Korea
| | - Joonyeon Shin
- Department of Herbology, School of Korean Medicine, Wonkwang University, Iksan-daero 460, Iksan, Jeollabuk-do 54538, Republic of Korea; Hanbang Cardio-Renal Syndrome Research Center, School of Korean Medicine, Wonkwang University, Iksan-daero 460, Iksan, Jeollabuk-do 54538, Republic of Korea
| | - Ziqi Zhou
- Department of Herbology, School of Korean Medicine, Wonkwang University, Iksan-daero 460, Iksan, Jeollabuk-do 54538, Republic of Korea; Research Center of Traditional Korean Medicine, Wonkwang University, Iksan-daero 460, Iksan, Jeollabuk-do 54538, Republic of Korea
| | - Ho-Joon Song
- Department of Herbology, School of Korean Medicine, Wonkwang University, Iksan-daero 460, Iksan, Jeollabuk-do 54538, Republic of Korea
| | - Gi-Sang Bae
- Hanbang Cardio-Renal Syndrome Research Center, School of Korean Medicine, Wonkwang University, Iksan-daero 460, Iksan, Jeollabuk-do 54538, Republic of Korea; Department of Pharmacology, School of Korean Medicine, Wonkwang University, Iksan-daero 460, Iksan, Jeollabuk-do 54538, Republic of Korea; Research Center of Traditional Korean Medicine, Wonkwang University, Iksan-daero 460, Iksan, Jeollabuk-do 54538, Republic of Korea
| | - Min Seuk Kim
- Department of Oral Physiology, Institute of Biomaterial-Implant, School of Dentistry, Wonkwang University, Iksan, Jeonbuk 54538, Republic of Korea
| | - Sung-Joo Park
- Department of Herbology, School of Korean Medicine, Wonkwang University, Iksan-daero 460, Iksan, Jeollabuk-do 54538, Republic of Korea; Hanbang Cardio-Renal Syndrome Research Center, School of Korean Medicine, Wonkwang University, Iksan-daero 460, Iksan, Jeollabuk-do 54538, Republic of Korea; Research Center of Traditional Korean Medicine, Wonkwang University, Iksan-daero 460, Iksan, Jeollabuk-do 54538, Republic of Korea.
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Yang J, Shi N, Wang S, Wang M, Huang Y, Wang Y, Liang G, Yang J, Rong J, Ma Y, Li L, Zhu P, Han C, Jin T, Yang H, Huang W, Raftery D, Xia Q, Du D. Multi-dimensional metabolomic profiling reveals dysregulated ornithine metabolism hallmarks associated with a severe acute pancreatitis phenotype. Transl Res 2024; 263:28-44. [PMID: 37619665 DOI: 10.1016/j.trsl.2023.08.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/29/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023]
Abstract
To reveal dysregulated metabolism hallmark that was associated with a severe acute pancreatitis (SAP) phenotype. In this study, LC-MS/MS-based targeted metabolomics was used to analyze plasma samples from 106 acute pancreatitis (AP) patients (34 mild, 38 moderate, and 34 severe) admitted within 48 hours from abdominal pain onset and 41 healthy controls. Temporal metabolic profiling was performed on days 1, 3, and 7 after admission. A random forest (RF) was performed to significantly determine metabolite differences between SAP and non-SAP (NSAP) groups. Mass spectrometry imaging (MSI) and immunohistochemistry were conducted for the examination of pancreatic metabolite and metabolic enzyme alterations, respectively, on necrosis and paracancerous tissues. Simultaneously determination of serum and pancreatic tissue metabolic alterations using an L-ornithine-induced AP model to discover metabolic commonalities. Twenty-two significant differential metabolites screened by RF were selected to build an accurate model for the prediction of SAP from NSAP (AUC = 0.955). Six of 22 markers were found by MSI with significant alterations in pancreatic lesions, reduced ornithine-related metabolites were also identified. The abnormally expressed arginase2 and ornithine transcarboxylase were further discovered in combination with time-course metabolic profiling in the SAP animal models, the decreased ornithine catabolites were found at a late stage of inflammation, but ornithine-associated metabolic enzymes were activated during the inflammatory process. The plasma metabolome of AP patients is distinctive, which shows promise for early SAP diagnosis. AP aggravation is linked to the activated ornithine metabolic pathway and its inadequate levels of catabolites in in-situ lesion.
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Affiliation(s)
- Jinxi Yang
- West China Centre of Excellence for Pancreatitis, Institute of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital/West China Medical School, Sichuan University, Chengdu, China
| | - Na Shi
- West China Centre of Excellence for Pancreatitis, Institute of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital/West China Medical School, Sichuan University, Chengdu, China
| | - Shisheng Wang
- Proteomics-Metabolomics Platform of Core Facilities, West China-Washington Mitochondria and Metabolism Centre, Institutes for Systems Genetics, West China Hospital, Sichuan University, Chengdu, China
| | - Manjiangcuo Wang
- Advanced Mass Spectrometry Center, Research Core Facility, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Yan Huang
- West China Centre of Excellence for Pancreatitis, Institute of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital/West China Medical School, Sichuan University, Chengdu, China
| | - Yiqin Wang
- West China Centre of Excellence for Pancreatitis, Institute of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital/West China Medical School, Sichuan University, Chengdu, China
| | - Ge Liang
- Proteomics-Metabolomics Platform of Core Facilities, West China-Washington Mitochondria and Metabolism Centre, Institutes for Systems Genetics, West China Hospital, Sichuan University, Chengdu, China
| | - Juqin Yang
- Biobank, Clinical Research Management Department, West China Hospital, Sichuan University, Chengdu, China
| | - Juan Rong
- West China Centre of Excellence for Pancreatitis, Institute of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital/West China Medical School, Sichuan University, Chengdu, China
| | - Yun Ma
- West China Centre of Excellence for Pancreatitis, Institute of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital/West China Medical School, Sichuan University, Chengdu, China
| | - Lan Li
- West China Centre of Excellence for Pancreatitis, Institute of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital/West China Medical School, Sichuan University, Chengdu, China
| | - Ping Zhu
- West China Centre of Excellence for Pancreatitis, Institute of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital/West China Medical School, Sichuan University, Chengdu, China
| | - Chenxia Han
- West China Centre of Excellence for Pancreatitis, Institute of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital/West China Medical School, Sichuan University, Chengdu, China
| | - Tao Jin
- West China Centre of Excellence for Pancreatitis, Institute of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital/West China Medical School, Sichuan University, Chengdu, China
| | - Hao Yang
- Proteomics-Metabolomics Platform of Core Facilities, West China-Washington Mitochondria and Metabolism Centre, Institutes for Systems Genetics, West China Hospital, Sichuan University, Chengdu, China
| | - Wei Huang
- Biobank, Clinical Research Management Department, West China Hospital, Sichuan University, Chengdu, China
| | - Daniel Raftery
- Northwest Metabolomics Research Center, Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, Washington
| | - Qing Xia
- West China Centre of Excellence for Pancreatitis, Institute of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital/West China Medical School, Sichuan University, Chengdu, China.
| | - Dan Du
- Proteomics-Metabolomics Platform of Core Facilities, West China-Washington Mitochondria and Metabolism Centre, Institutes for Systems Genetics, West China Hospital, Sichuan University, Chengdu, China; Advanced Mass Spectrometry Center, Research Core Facility, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China.
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3
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Takano T, Yule DI. Ca 2+ signals in pancreatic acinar cells in response to physiological stimulation in vivo. J Physiol 2023. [PMID: 36965132 DOI: 10.1113/jp284469] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 03/08/2023] [Indexed: 03/27/2023] Open
Abstract
The exocrine pancreas secretes fluid and digestive enzymes in response to parasympathetic release of acetylcholine (ACh) via the vagus nerve and the gut hormone cholecystokinin (CCK). Both secretion of fluid and exocytosis of secretory granules containing enzymes and zymogens are dependent on an increase in the cytosolic [Ca2+ ] in acinar cells. It is thought that the specific spatiotemporal characteristics of the Ca2+ signals are fundamental for appropriate secretion and that these properties are disrupted in disease states in the pancreas. While extensive research has been performed to characterize Ca2+ signalling in acinar cells, this has exclusively been achieved in ex vivo preparations of exocrine cells, where it is difficult to mimic physiological conditions. Here we have developed a method to optically observe pancreatic acinar Ca2+ signals in vivo using a genetically expressed Ca2+ indicator and imaged with multi-photon microscopy in live animals. In vivo, acinar cells exhibited baseline activity in fasted animals, which was dependent on CCK1 receptors (CCK1Rs). Both stimulation of intrinsic nervous input and administration of systemic CCK induced oscillatory activity in a proportion of the cells, but the maximum frequencies were vastly different. Upon feeding, oscillatory activity was also observed, which was dependent on CCK1Rs. No evidence of a vago-vagal reflex mediating the effects of CCK was observed. Our in vivo method revealed the spatial and temporal profile of physiologically evoked Ca2+ signals, which will provide new insights into future studies of the mechanisms underlying exocrine physiology and that are disrupted in pathological conditions. KEY POINTS: In the exocrine pancreas, the spatiotemporal properties of Ca2+ signals are fundamentally important for the appropriate stimulation of secretion by the neurotransmitter acetylcholine and gut hormone cholecystokinin. These characteristics were previously defined in ex vivo studies. Here we report the spatiotemporal characteristics of Ca2+ signals in vivo in response to physiological stimulation in a mouse engineered to express a Ca2+ indicator in acinar cells. Specific Ca2+ 'signatures' probably important for stimulating secretion are evoked in vivo in fasted animals, by feeding, neural stimulation and cholecystokinin administration. The Ca2+ signals are probably the result of the direct action of ACh and CCK on acinar cells and not indirectly through a vago-vagal reflex.
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Affiliation(s)
- Takahiro Takano
- Department of Pharmacology and Physiology, University of Rochester, Rochester, New York, USA
| | - David I Yule
- Department of Pharmacology and Physiology, University of Rochester, Rochester, New York, USA
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Petersen OH. The 2022 George E Palade Medal Lecture: Toxic Ca 2+ signals in acinar, stellate and endogenous immune cells are important drivers of acute pancreatitis. Pancreatology 2023; 23:1-8. [PMID: 36539315 PMCID: PMC10809214 DOI: 10.1016/j.pan.2022.12.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 01/11/2023]
Abstract
In this account of the 2022 Palade Medal Lecture, an attempt is made to explain, as simply as possible, the most essential features of normal physiological control of pancreatic enzyme secretion, as they have emerged from more than 50 years of experimental work. On that basis, further studies on the mechanism by which acute pancreatitis is initiated are then described. Calcium ion signaling is crucially important for both the normal physiology of secretion control as well as for the development of acute pancreatitis. Although acinar cell processes have, rightly, been central to our understanding of pancreatic physiology and pathophysiology, attention is here drawn to the additional critical influence of calcium signaling events in stellate and immune cells in the acinar environment. These signals contribute significantly to the crucially important inflammatory response in acute pancreatitis.
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Affiliation(s)
- Ole H Petersen
- School of Biosciences, Sir Martin Evans Building, Cardiff University, Wales, CF10 3AX, UK.
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Song TJ, Ke J, Chen F, Zhang JY, Zhang C, Chen HY. Effect of SNHG11/miR-7-5p/PLCB1 Axis on Acute Pancreatitis through Inhibiting p38MAPK Pathway. Cells 2022; 12:cells12010065. [PMID: 36611865 PMCID: PMC9818913 DOI: 10.3390/cells12010065] [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: 11/05/2022] [Revised: 12/09/2022] [Accepted: 12/17/2022] [Indexed: 12/28/2022] Open
Abstract
Acute pancreatitis (AP) is an inflammatory disease of the pancreas. A growing number of studies have shown that long noncoding RNAs (lncRNAs) play an important role in AP progression. Here, we aimed to elucidate the role of Small Nucleolar RNA Host Gene 11(SNHG11) and its underlying molecular mechanisms behind AP progression. The in vivo and in vitro AP cell models were established by retrograde injection of sodium taurocholate and caerulein stimulation into AR42J cells and HPDE6-C7 cells, respectively. A bioinformatics website predicted the relationship between SNHG11, miR-7-5p, and Phospholipase C Beta 1(PLCB1) and validated it with a dual-luciferase reporter assay and an RNA immunoprecipitation (RIP) assay. AR42J cells and HPDE6-C7 cells were transfected with an overexpression of plasmids or shRNA to investigate the effects of the SNHG11/miR-7-5p/PLCB1 axis on cell proliferation and apoptosis, inflammatory cytokine secretion, and acute pancreatitis. Low expression of SNHG11 and PLCB1 and high expression of miR-7-5p were observed in AP pancreatic tissue and AP cell models. SNHG11 overexpression inhibited apoptosis and inflammatory responses induced by caerulein. Simultaneously, we discovered that SNHG11 regulates PLCB1 expression by sponging miR-7-5p. PLCB1 overexpression abrogated inflammatory damage exacerbated by miR-7-5p enrichment. In addition, the SNHG11/miR-7-5p/PLCB1 axis could be involved in caerulein-induced inflammatory injury by participating in the p38MAPK signaling pathway. The overexpressed SNHG11/miR-7-5p/PLCB1 axis can inhibit AP progression by participating in the p38MAPK signaling pathway, thereby providing a potential therapeutic target and therapeutic direction for AP therapy.
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Affiliation(s)
- Tian-Jiao Song
- Shengli Clinical Medical College, Fujian Medical University, Fuzhou 350001, China
- Department of Emergency, Fujian Provincial Hospital, Fuzhou 350001, China
- Fujian Provincial Key Laboratory of Emergency Medicine, Fujian Provincial Institute of Emergency Medicine, Fujian Emergency Medical Center, Fuzhou 350001, China
| | - Jun Ke
- Shengli Clinical Medical College, Fujian Medical University, Fuzhou 350001, China
- Department of Emergency, Fujian Provincial Hospital, Fuzhou 350001, China
- Fujian Provincial Key Laboratory of Emergency Medicine, Fujian Provincial Institute of Emergency Medicine, Fujian Emergency Medical Center, Fuzhou 350001, China
| | - Feng Chen
- Shengli Clinical Medical College, Fujian Medical University, Fuzhou 350001, China
- Department of Emergency, Fujian Provincial Hospital, Fuzhou 350001, China
- Fujian Provincial Key Laboratory of Emergency Medicine, Fujian Provincial Institute of Emergency Medicine, Fujian Emergency Medical Center, Fuzhou 350001, China
- Correspondence:
| | - Jiu-Yun Zhang
- Shengli Clinical Medical College, Fujian Medical University, Fuzhou 350001, China
- Department of Emergency, Fujian Provincial Hospital, Fuzhou 350001, China
- Fujian Provincial Key Laboratory of Emergency Medicine, Fujian Provincial Institute of Emergency Medicine, Fujian Emergency Medical Center, Fuzhou 350001, China
| | - Chun Zhang
- Department of Hepatobiliary and Pancreatic Surgery, Mindong Hospital, Ningde, Fujian Medical University, No. 89, Heshan Road, Fuan 355000, China
| | - Hong-Yi Chen
- Shengli Clinical Medical College, Fujian Medical University, Fuzhou 350001, China
- Department of Emergency, Fujian Provincial Hospital, Fuzhou 350001, China
- Fujian Provincial Key Laboratory of Emergency Medicine, Fujian Provincial Institute of Emergency Medicine, Fujian Emergency Medical Center, Fuzhou 350001, China
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Petersen OH. Watching Living Cells in Action in the Exocrine Pancreas: The Palade Prize Lecture. FUNCTION 2022; 4:zqac061. [PMID: 36606242 PMCID: PMC9809903 DOI: 10.1093/function/zqac061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/04/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022] Open
Abstract
George Palade's pioneering electron microscopical studies of the pancreatic acinar cell revealed the intracellular secretory pathway from the rough endoplasmic reticulum at the base of the cell to the zymogen granules in the apical region. Palade also described for the first time the final stage of exocytotic enzyme secretion into the acinar lumen. The contemporary studies of the mechanism by which secretion is acutely controlled, and how the pancreas is destroyed in the disease acute pancreatitis, rely on monitoring molecular events in the various identified pancreatic cell types in the living pancreas. These studies have been carried out with the help of high-resolution fluorescence recordings, often in conjunction with patch clamp current measurements. In such studies we have gained much detailed information about the regulatory events in the exocrine pancreas in health as well as disease, and new therapeutic opportunities have been revealed.
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Affiliation(s)
- Ole H Petersen
- School of Biosciences, Sir Martin Evans Building, Cardiff University, Wales, CF10 3AX, UK
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Cholecystokinin (CCK) and its receptors (CCK1R and CCK2R) in chickens: functional analysis and tissue expression. Poult Sci 2022; 102:102273. [PMID: 36436379 PMCID: PMC9706633 DOI: 10.1016/j.psj.2022.102273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 09/25/2022] [Accepted: 10/15/2022] [Indexed: 11/06/2022] Open
Abstract
Cholecystokinin (CCK) is widely distributed in the gastrointestinal tract and central nervous system, regulating a range of physiological functions by activating its receptors (CCK1R and CCK2R). Compared to those in mammals, the CCK gene and its receptors have already been cloned in various birds, such as chickens. However, knowledge regarding their functionality and tissue expression is limited. In this study, we examined the expression of CCK and its 2 receptors in chicken tissues. In addition, the functionality of the 2 receptors was investigated. Using 3 cell-based luciferase reporter systems and western blots, we demonstrated that chicken (c-) CCK1R could be potently activated by cCCK-8S but not cCCK-4, whereas cCCK2R could be activated by cCCK-8S and cCCK-4 with similar efficiency. Using RNA-sequencing, we revealed that cCCK is abundantly expressed in the testis, ileum, and several brain regions (cerebrum, midbrain, cerebellum, hindbrain, and hypothalamus). The abundant expression of CCK in the hypothalamus was further supported by immunofluorescence. In addition, cCCK1R is highly expressed in the pancreas and moderately expressed in various intestinal regions (ileum, cecum, and rectum) and the pituitary gland, whereas cCCK2R expression is primarily restricted to the brain. Our data reveal the differential specificities of CCK receptors for various CCK peptides. In combination with the differential tissue distribution of CCK and its receptors, the present study helps to understanding the physiological functions of CCK/CCKRs in birds.
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Girdhar K, Soto M, Huang Q, Orliaguet L, Cederquist C, Sundaresh B, Hu J, Figura M, Raisingani A, Canfora EE, Dirice E, Fujisaka S, Goossens GH, Blaak EE, Kulkarni RN, Kahn CR, Altindis E. Gut Microbiota Regulate Pancreatic Growth, Exocrine Function, and Gut Hormones. Diabetes 2022; 71:945-960. [PMID: 35212729 PMCID: PMC9044125 DOI: 10.2337/db21-0382] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 02/17/2022] [Indexed: 11/13/2022]
Abstract
Growing evidence indicates an important link between gut microbiota, obesity, and metabolic syndrome. Alterations in exocrine pancreatic function are also widely present in patients with diabetes and obesity. To examine this interaction, C57BL/6J mice were fed a chow diet, a high-fat diet (HFD), or an HFD plus oral vancomycin or metronidazole to modify the gut microbiome. HFD alone leads to a 40% increase in pancreas weight, decreased glucagon-like peptide 1 and peptide YY levels, and increased glucose-dependent insulinotropic peptide in the plasma. Quantitative proteomics identified 138 host proteins in fecal samples of these mice, of which 32 were significantly changed by the HFD. The most significant of these were the pancreatic enzymes. These changes in amylase and elastase were reversed by antibiotic treatment. These alterations could be reproduced by transferring gut microbiota from donor C57BL/6J mice to germ-free mice. By contrast, antibiotics had no effect on pancreatic size or exocrine function in C57BL/6J mice fed the chow diet. Further, 1 week vancomycin administration significantly increased amylase and elastase levels in obese men with prediabetes. Thus, the alterations in gut microbiota in obesity can alter pancreatic growth, exocrine function, and gut endocrine function and may contribute to the alterations observed in patients with obesity and diabetes.
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Affiliation(s)
| | - Marion Soto
- Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA
| | - Qian Huang
- Biology Department Boston College, Chestnut Hill, MA
| | - Lucie Orliaguet
- Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA
- Cordeliers Research Centre, INSERM, Immunity and Metabolism in Diabetes Laboratory, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Paris, France
| | - Carly Cederquist
- Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA
| | | | - Jiang Hu
- Islet Cell and Regenerative Biology, Joslin Diabetes Center, Harvard Medical School, Boston, MA
| | | | | | - Emanuel E. Canfora
- Department of Human Biology, Maastricht University, Maastricht, the Netherlands
| | - Ercument Dirice
- Islet Cell and Regenerative Biology, Joslin Diabetes Center, Harvard Medical School, Boston, MA
- Department of Pharmacology, School of Medicine, New York Medical College, Valhalla, NY
| | - Shiho Fujisaka
- Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA
- First Department of Internal Medicine, University of Toyama, Toyama, Japan
| | - Gijs H. Goossens
- Department of Human Biology, Maastricht University, Maastricht, the Netherlands
| | - Ellen E. Blaak
- Department of Human Biology, Maastricht University, Maastricht, the Netherlands
| | - Rohit N. Kulkarni
- Islet Cell and Regenerative Biology, Joslin Diabetes Center, Harvard Medical School, Boston, MA
- Department of Medicine, Brigham and Women′s Hospital, Harvard Medical School, Boston, MA
- Harvard Stem Cell Institute, Harvard Medical School, Boston, MA
| | - C. Ronald Kahn
- Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA
- Corresponding authors: Emrah Altindis, , and C. Ronald Kahn,
| | - Emrah Altindis
- Biology Department Boston College, Chestnut Hill, MA
- Corresponding authors: Emrah Altindis, , and C. Ronald Kahn,
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Du W, Liu G, Shi N, Tang D, Ferdek PE, Jakubowska MA, Liu S, Zhu X, Zhang J, Yao L, Sang X, Zou S, Liu T, Mukherjee R, Criddle DN, Zheng X, Xia Q, Berggren PO, Huang W, Sutton R, Tian Y, Huang W, Fu X. A microRNA checkpoint for Ca 2+ signaling and overload in acute pancreatitis. Mol Ther 2022; 30:1754-1774. [PMID: 35077860 PMCID: PMC9077382 DOI: 10.1016/j.ymthe.2022.01.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 12/16/2021] [Accepted: 01/20/2022] [Indexed: 02/05/2023] Open
Abstract
Acute pancreatitis (AP) is a common digestive disease without specific treatment, and its pathogenesis features multiple deleterious amplification loops dependent on translation, triggered by cytosolic Ca2+ ([Ca2+]i) overload; however, the underlying mechanisms in Ca2+ overload of AP remains incompletely understood. Here we show that microRNA-26a (miR-26a) inhibits pancreatic acinar cell (PAC) store-operated Ca2+ entry (SOCE) channel expression, Ca2+ overload, and AP. We find that major SOCE channels are post-transcriptionally induced in PACs during AP, whereas miR-26a expression is reduced in experimental and human AP and correlated with AP severity. Mechanistically, miR-26a simultaneously targets Trpc3 and Trpc6 SOCE channels and attenuates physiological oscillations and pathological elevations of [Ca2+]i in PACs. MiR-26a deficiency increases SOCE channel expression and [Ca2+]i overload, and significantly exacerbates AP. Conversely, global or PAC-specific overexpression of miR-26a in mice ameliorates pancreatic edema, neutrophil infiltration, acinar necrosis, and systemic inflammation, accompanied with remarkable improvements on pathological determinants related with [Ca2+]i overload. Moreover, pancreatic or systemic administration of an miR-26a mimic to mice significantly alleviates experimental AP. These findings reveal a previously unknown mechanism underlying AP pathogenesis, establish a critical role for miR-26a in Ca2+ signaling in the exocrine pancreas, and identify a potential target for the treatment of AP.
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Affiliation(s)
- Wenya Du
- Division of Endocrinology and Metabolism, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041 Sichuan, China
| | - Geng Liu
- Division of Endocrinology and Metabolism, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041 Sichuan, China
| | - Na Shi
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, 610041 Sichuan, China; Institutes for Systems Genetics & Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041 Sichuan, China
| | - Dongmei Tang
- Division of Endocrinology and Metabolism, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041 Sichuan, China
| | - Pawel E Ferdek
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland
| | - Monika A Jakubowska
- Malopolska Centre of Biotechnology, Jagiellonian University, 30-387 Krakow, Poland
| | - Shiyu Liu
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, 610041 Sichuan, China
| | - Xinyue Zhu
- Division of Endocrinology and Metabolism, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041 Sichuan, China
| | - Jiayu Zhang
- Division of Endocrinology and Metabolism, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041 Sichuan, China
| | - Linbo Yao
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, 610041 Sichuan, China
| | - Xiongbo Sang
- Division of Endocrinology and Metabolism, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041 Sichuan, China
| | - Sailan Zou
- Division of Endocrinology and Metabolism, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041 Sichuan, China
| | - Tingting Liu
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, 610041 Sichuan, China
| | - Rajarshi Mukherjee
- Liverpool Pancreatitis Research Group, Liverpool University Hospitals NHS Foundation Trust and Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Ashton Street, Liverpool L69 3GE, UK
| | - David N Criddle
- Department of Molecular Physiology and Cell Signaling, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L69 3GE, UK
| | - Xiaofeng Zheng
- Center for Diabetes and Metabolism Research, Division of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, 610041 Sichuan, China
| | - Qing Xia
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, 610041 Sichuan, China
| | - Per-Olof Berggren
- Center for Diabetes and Metabolism Research, Division of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, 610041 Sichuan, China; The Rolf Luft Research Center for Diabetes and Endocrinology, Karolinska Institutet, 17176 Stockholm, Sweden
| | - Wendong Huang
- Department of Diabetes Complications and Metabolism, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Robert Sutton
- Liverpool Pancreatitis Research Group, Liverpool University Hospitals NHS Foundation Trust and Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Ashton Street, Liverpool L69 3GE, UK.
| | - Yan Tian
- Division of Endocrinology and Metabolism, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041 Sichuan, China.
| | - Wei Huang
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, 610041 Sichuan, China; Institutes for Systems Genetics & Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041 Sichuan, China; West China Biobanks, Department of Clinical Research Management, West China Hospital, Sichuan University, Chengdu, 610041 Sichuan, China.
| | - Xianghui Fu
- Division of Endocrinology and Metabolism, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041 Sichuan, China.
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10
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Gao L, Chong E, Pendharkar S, Hong J, Windsor JA, Ke L, Li W, Phillips A. The Effects of NLRP3 Inflammasome Inhibition in Experimental Acute Pancreatitis: A Systematic Review and Meta-Analysis. Pancreas 2022; 51:13-24. [PMID: 35195590 DOI: 10.1097/mpa.0000000000001971] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
ABSTRACT Acute pancreatitis (AP) is an inflammatory disease, and NLRP3 inflammasome activation is involved in the pathogenesis of AP. Previous research showed that inhibition of NLRP3 inflammasome may exert protective effects on animal models of AP and reduces disease severity. The aim of this systematic review and meta-analysis is to evaluate the effects of drug treatment of NLRP3 inflammasome on the outcomes of experimental AP. PubMed, Embase, Medline, and Web of Science databases were searched for relevant articles without language restrictions. The main outcomes for this study included local pancreatic injury, the incidence of systemic inflammatory responses, and the incidence of organ failure. Twenty-eight animal studies including 556 animals with AP were included in the meta-analysis. Compared with controls, inhibition of NLRP3 inflammasome significantly reduced the pancreatic histopathological scores, serum amylase, and lipase levels. In addition, inhibition of NLRP3 inflammasome reduced the levels of circulating inflammatory cytokines, as well as mitigating severity of AP-associated acute lung injury and acute intestinal injury. To conclude, inhibition of NLRP3 inflammasome has protective effects on AP by mitigating organ injury and systemic inflammation in animal studies, indicating that NLRP3 inflammasome holds promise as a target for specific AP therapy.
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Affiliation(s)
| | - Eric Chong
- Surgical and Translational Research Centre, Faculty of Medical and Health Sciences, School of Medicine, University of Auckland, Auckland, New Zealand
| | - Sayali Pendharkar
- Surgical and Translational Research Centre, Faculty of Medical and Health Sciences, School of Medicine, University of Auckland, Auckland, New Zealand
| | | | | | - Lu Ke
- From the Center of Severe Acute Pancreatitis, Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Weiqin Li
- From the Center of Severe Acute Pancreatitis, Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
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11
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Sangnes DA, Sandvik Bergmann E, Moss RM, Engjom T, Søfteland E. Pancreatic exocrine insufficiency in diabetes is associated with autonomic dysfunction. Scand J Gastroenterol 2021; 56:1222-1228. [PMID: 34491874 DOI: 10.1080/00365521.2021.1957496] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVES Pancreatic exocrine insufficiency (PEI) is prevalent in diabetes. Pathophysiological theories imply autoimmune destruction, lack of trophic effects of insulin or impaired neuronal stimulation, but the relationship between PEI and autonomic dysfunction is largely unknown. In a pilot study, we aimed to investigate if patients with diabetes and PEI had impaired autonomic function. METHODS We measured faecal elastase in 59 patients with type 1 or 2 diabetes, using a cut-off-value <200 μg/g to define PEI. Based on faecal elastase results, patients were stratified into matched case (n = 8) and control groups (n = 13). We used heart rate variability, baroreflex sensitivity and orthostatic hypotension tests to assess autonomic dysfunction. RESULTS All baroreflex sensitivity parameters were reduced in cases with PEI compared with controls (all p < .05). The heart rate variability parameters root mean square of successive RR interval differences (p = .05) and high frequency (p = .04) were also reduced. We found no difference in orthostatic hypotension between the groups. CONCLUSIONS In this first-of-its-kind study, we found that diabetes patients with PEI had reduced autonomic function compared with matched controls. Although numbers are small, results support the hypothesis that autonomic dysfunction could be a contributor to PEI in diabetes.
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Affiliation(s)
- Dag André Sangnes
- Department of Medicine, Haukeland University Hospital, Bergen, Norway.,Department of Clinical Medicine, University of Bergen, Norway
| | | | - Rose Marie Moss
- Department of Clinical Medicine, University of Bergen, Norway
| | - Trond Engjom
- Department of Medicine, Haukeland University Hospital, Bergen, Norway.,Department of Clinical Medicine, University of Bergen, Norway
| | - Eirik Søfteland
- Department of Medicine, Haukeland University Hospital, Bergen, Norway.,Department of Clinical Medicine, University of Bergen, Norway.,Hormone Laboratory, Haukeland University Hospital, Bergen, Norway
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12
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Guo XW, Zhang H, Huang JQ, Wang SN, Lu Y, Cheng B, Dong SH, Wang YY, Li FS, Li YW. PIEZO1 Ion Channel Mediates Ionizing Radiation-Induced Pulmonary Endothelial Cell Ferroptosis via Ca 2+/Calpain/VE-Cadherin Signaling. Front Mol Biosci 2021; 8:725274. [PMID: 34568428 PMCID: PMC8458942 DOI: 10.3389/fmolb.2021.725274] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 08/20/2021] [Indexed: 12/23/2022] Open
Abstract
Pulmonary endothelial cell dysfunction plays an important role in ionizing radiation (IR)-induced lung injury. Whether pulmonary endothelial cell ferroptosis occurs after IR and what are the underlying mechanisms remain elusive. Here, we demonstrate that 15-Gy IR induced ferroptosis characterized by lethal accumulation of reactive oxygen species (ROS), lipid peroxidation, mitochondria shrinkage, and decreased glutathione peroxidase 4 (GPX4) and SLC7A11 expression in pulmonary endothelial cells. The phenomena could be mimicked by Yoda1, a specific activator of mechanosensitive calcium channel PIEZO1. PIEZO1 protein expression was upregulated by IR in vivo and in vitro. The increased PIEZO1 expression after IR was accompanied with increased calcium influx and increased calpain activity. The effects of radiation on lung endothelial cell ferroptosis was partly reversed by inhibition of PIEZO1 activity using the selective inhibitor GsMTx4 or inhibition of downstreaming Ca2+/calpain signaling using PD151746. Both IR and activation of PIEZO1 led to increased degradation of VE-cadherin, while PD151746 blocked these effects. VE-cadherin knockdown by specific siRNA causes ferroptosis-like phenomena with increased ROS and lipid peroxidation in the lung endothelial cells. Overexpression of VE-cadherin partly recused the ferroptosis caused by IR or PIEZO1 activation as supported by decreased ROS production, lipid peroxidation and mitochondria shrinkage compared to IR or PIEZO1 activation alone. In summary, our study reveals a previously unrecognized role of PIEZO1 in modulating ferroptosis, providing a new target for future mitigation of radiation-induced lung injury.
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Affiliation(s)
- Xue-Wei Guo
- The Postgraduate Training Base of Jinzhou Medical University (The PLA Rocket Force Characteristic Medical Center), Beijing, China.,Department of Anesthesiology, The PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Hao Zhang
- Department of Anesthesiology, The PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Jia-Qi Huang
- The Postgraduate Training Base of Jinzhou Medical University (The PLA Rocket Force Characteristic Medical Center), Beijing, China.,Department of Anesthesiology, The PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Si-Nian Wang
- Department of Nuclear Radiation Injury and Monitoring, The PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Yan Lu
- Department of Neurology, The PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Bo Cheng
- Department of Pathology, The PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Su-He Dong
- Department of Nuclear Radiation Injury and Monitoring, The PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Ying-Ying Wang
- Department of Anesthesiology, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Feng-Sheng Li
- Department of Nuclear Radiation Injury and Monitoring, The PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Yong-Wang Li
- Department of Anesthesiology, The PLA Rocket Force Characteristic Medical Center, Beijing, China
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13
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Wan J, Wang J, Wagner LE, Wang OH, Gui F, Chen J, Zhu X, Haddock AN, Edenfield BH, Haight B, Mukhopadhyay D, Wang Y, Yule DI, Bi Y, Ji B. Pancreas-specific CHRM3 activation causes pancreatitis in mice. JCI Insight 2021; 6:132585. [PMID: 34314386 PMCID: PMC8492327 DOI: 10.1172/jci.insight.132585] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 07/22/2021] [Indexed: 12/26/2022] Open
Abstract
Hyperstimulation of the cholecystokinin 1 receptor (CCK1R), a G protein-coupled receptor (GPCR), in pancreatic acinar cells is commonly used to induce pancreatitis in rodents. Human pancreatic acinar cells lack CCK1R but express cholinergic receptor muscarinic 3 (M3R), another GPCR. To test whether M3R activation is involved in pancreatitis, a mutant M3R was conditionally expressed in pancreatic acinar cells in mice. This mutant receptor loses responsiveness to its native ligand, acetylcholine, but can be activated by an inert small molecule, clozapine-N-oxide (CNO). Intracellular calcium and amylase were elicited by CNO in pancreatic acinar cells isolated from mutant M3R mice but not WT mice. Similarly, acute pancreatitis (AP) could be induced by a single injection of CNO in the transgenic mice but not WT mice. Compared with the cerulein-induced AP, CNO caused more widespread acinar cell death and inflammation. Furthermore, chronic pancreatitis developed at 4 weeks after 3 episodes of CNO-induced AP. In contrast, in mice with 3 recurrent episodes of cerulein-included AP, pancreas histology was restored in 4 weeks. Furthermore, the M3R antagonist ameliorated the severity of cerulein-induced AP in WT mice. We conclude that M3R activation can cause the pathogenesis of pancreatitis. This model may provide an alternative approach for pancreatitis research.
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Affiliation(s)
- Jianhua Wan
- Department of Cancer Biology, Mayo Clinic, Jacksonville, Florida, USA
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, PR China
| | - Jiale Wang
- Department of Cancer Biology, Mayo Clinic, Jacksonville, Florida, USA
| | - Larry E. Wagner
- Department of Pharmacology and Physiology, University of Rochester, Rochester, New York, USA
| | - Oliver H. Wang
- Department of Cancer Biology, Mayo Clinic, Jacksonville, Florida, USA
| | - Fu Gui
- Department of Cancer Biology, Mayo Clinic, Jacksonville, Florida, USA
| | - Jiaxiang Chen
- Department of Cancer Biology, Mayo Clinic, Jacksonville, Florida, USA
| | - Xiaohui Zhu
- Department of Cancer Biology, Mayo Clinic, Jacksonville, Florida, USA
| | - Ashley N. Haddock
- Department of Cancer Biology, Mayo Clinic, Jacksonville, Florida, USA
| | | | - Brian Haight
- Prodo Laboratories Inc., Aliso Viejo, California, USA
| | - Debabrata Mukhopadhyay
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Jacksonville, Florida, USA
| | - Ying Wang
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - David I. Yule
- Department of Pharmacology and Physiology, University of Rochester, Rochester, New York, USA
| | - Yan Bi
- Department of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, Florida, USA
| | - Baoan Ji
- Department of Cancer Biology, Mayo Clinic, Jacksonville, Florida, USA
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14
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Han C, Du D, Wen Y, Li J, Wang R, Jin T, Yang J, Shi N, Jiang K, Deng L, Fu X, Mukherjee R, Windsor JA, Hong J, Phillips AR, Sutton R, Huang W, Liu T, Xia Q. Chaiqin chengqi decoction ameliorates acute pancreatitis in mice via inhibition of neuron activation-mediated acinar cell SP/NK1R signaling pathways. JOURNAL OF ETHNOPHARMACOLOGY 2021; 274:114029. [PMID: 33731310 DOI: 10.1016/j.jep.2021.114029] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 02/17/2021] [Accepted: 03/10/2021] [Indexed: 02/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Chaiqin chengqi decoction (CQCQD) and its derivatives have been widely used in China for the early management of patients with acute pancreatitis (AP). Numerous studies demonstrate the anti-inflammatory and anti-oxidative effects of CQCQD and derivatives, but whether these effects can be attributed to suppressing neurogenic inflammation, has never been studied. AIM OF THE STUDY To investigate the effects of CQCQD on substance P (SP)-neurokinin 1 receptor (NK1R) based neurogenic inflammation in an experimental AP model. MATERIAL AND METHODS For AP patients on admission, pain score was accessed by visual analog scale (VAS); the levels of serum SP and expressions of pancreatic SP and NK1R were also determined. For in vivo study, mice received 7 intraperitoneal injections of cerulein (50 μg/kg) at hourly intervals to induce AP, whilst controls received normal saline injections. In the treatment groups, CQCQD (10 g/kg, 200 μl) was intragastrically given at the third, fifth, and seventh of the cerulein injection or the NK1R antagonist CP96345 (5 mg/kg) was intraperitoneally injected 30 min before the first cerulein administration. The von Frey test was performed to evaluate pain behavior. Animals were sacrificed at 12 h from the first cerulein/saline injection for severity assessment. Pharmacology network analysis was used to identify active ingredients of CQCQD for AP and pain. In vitro, freshly isolated pancreatic acinar cells were pre-treated with CQCQD (5 mg/ml), CP96345 (1 μM), or selected active compounds of CQCQD (12.5, 25, and 50 μM) for 30 min, followed by SP incubation for another 30 min. RESULTS The VAS score as well as the levels of serum SP and expressions of pancreatic SP-NK1R were up-regulated in moderately severe and severe patients compared with those with mild disease. CQCQD, but not CP96345, consistently and significantly ameliorated pain, pancreatic necrosis, and systemic inflammation in cerulein-induced AP as well as inhibited NK1R internalization of pancreatic acinar cells. These effects of CQCQD were associated with reduction of pancreatic SP-NK1R and neuron activity in pancreas, dorsal root ganglia, and spinal cord. Baicalin, emodin, and magnolol, the top 3 active components of CQCQD identified via pharmacology network analysis, suppressed NK1R internalization and NF-κB signal pathway activation in isolated pancreatic acinar cells. CONCLUSIONS CQCQD ameliorated cerulein-induced AP and its associated pain via inhibiting neuron activation-mediated pancreatic acinar cell SP-NK1R signaling pathways and its active compounds baicalin, emodin, and magnolol contributed to this effect.
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Affiliation(s)
- Chenxia Han
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Dan Du
- West China-Washington Mitochondria and Metabolism Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yongjian Wen
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jiawang Li
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Rui Wang
- Core Research Facilities, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Tao Jin
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jingyu Yang
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Na Shi
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Kun Jiang
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Lihui Deng
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xianghui Fu
- Division of Endocrinology and Metabolism, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Rajarshi Mukherjee
- Liverpool Pancreatitis Study Group, Royal Liverpool University Hospital and Institute of Translational Medicine, University of Liverpool, Liverpool, L69 3GE, United Kingdom
| | - John A Windsor
- Surgical and Translational Research Centre, Faculty of Medical and Health Sciences, University of Auckland, Auckland, 1023, New Zealand
| | - Jiwon Hong
- Surgical and Translational Research Centre, Faculty of Medical and Health Sciences, University of Auckland, Auckland, 1023, New Zealand; Applied Surgery and Metabolism Laboratory, School of Biological Sciences, University of Auckland, Auckland, 1010, New Zealand
| | - Anthony R Phillips
- Surgical and Translational Research Centre, Faculty of Medical and Health Sciences, University of Auckland, Auckland, 1023, New Zealand; Applied Surgery and Metabolism Laboratory, School of Biological Sciences, University of Auckland, Auckland, 1010, New Zealand
| | - Robert Sutton
- Liverpool Pancreatitis Study Group, Royal Liverpool University Hospital and Institute of Translational Medicine, University of Liverpool, Liverpool, L69 3GE, United Kingdom
| | - Wei Huang
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Tingting Liu
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Qing Xia
- Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, 610041, China.
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15
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Gao L, Dong X, Gong W, Huang W, Xue J, Zhu Q, Ma N, Chen W, Fu X, Gao X, Lin Z, Ding Y, Shi J, Tong Z, Liu T, Mukherjee R, Sutton R, Lu G, Li W. Acinar cell NLRP3 inflammasome and gasdermin D (GSDMD) activation mediates pyroptosis and systemic inflammation in acute pancreatitis. Br J Pharmacol 2021; 178:3533-3552. [PMID: 33871879 DOI: 10.1111/bph.15499] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 02/22/2021] [Accepted: 04/06/2021] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND AND PURPOSE Pyroptosis is a lytic form of pro-inflammatory cell death characterised as caspase 1 dependent with canonical NLRP3 inflammasome-induced gasdermin D (GSDMD) activation. We aimed to investigate the role of acinar pyroptotic cell death in pancreatic injury and systemic inflammation in AP. EXPERIMENTAL APPROACH Pancreatic acinar pyroptotic cell death pathway activation upon pancreatic toxin stimulation in vitro and in vivo was investigated. Effects of pharmacological (NLRP3 and caspase-1 inhibitors), constitutive (Nlrp3-/- , Casp1-/- and Gsdmd-/- ) and acinar cell conditional (Pdx1Cre Nlrp3Δ/Δ and Pdx1Cre GsdmdΔ/Δ ) genetic inhibition on pyroptotic acinar cell death, pancreatic necrosis and systemic inflammation were assessed using mouse AP models (caerulein, sodium taurocholate and l-arginine). Effects of Pdx1Cre GsdmdΔ/Δ versus myeloid conditional knockout (Lyz2Cre GsdmdΔ/Δ ) and Gsdmd-/- versus receptor-interacting protein 3 (RIP3) inhibitor were compared in CER-AP. KEY RESULTS There was consistent pyroptotic acinar cell death upon pancreatic toxin stimulation both in vitro and in vivo, which was significantly reduced by pharmacological or genetic pyroptosis inhibition. Pdx1Cre GsdmdΔ/Δ but not Lyz2Cre GsdmdΔ/Δ mice showed significantly reduced pyroptotic acinar cell death, pancreatic necrosis and systemic inflammation in caerulein-AP. Co-application of RIP3 inhibitor on Gsdmd-/- mice further increased protection on caerulein-AP. CONCLUSION AND IMPLICATIONS This work demonstrates a critical role for NLRP3 inflammasome and GSDMD activation-mediated pyroptosis in acinar cells, linking pancreatic necrosis and systemic inflammation in AP. Targeting pyroptosis signalling pathways holds promise for specific AP therapy.
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Affiliation(s)
- Lin Gao
- Center of Severe Acute Pancreatitis (CASP), Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xiaowu Dong
- Center of Severe Acute Pancreatitis (CASP), Department of Critical Care Medicine, Jinling Hospital, Nanjing Medical University, Nanjing, China
| | - Weijuan Gong
- Pancreatic Center, Department of Gastroenterology, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Wei Huang
- Department and Laboratory of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, China
| | - Jing Xue
- State Key Laboratory of Oncogenes and Related Genes, Stem Cell Research Centre, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qingtian Zhu
- Pancreatic Center, Department of Gastroenterology, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Nan Ma
- Center of Severe Acute Pancreatitis (CASP), Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Weiwei Chen
- Center of Severe Acute Pancreatitis (CASP), Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xianghui Fu
- Division of Endocrinology and Metabolism, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Centre of Biotherapy, Chengdu, China
| | - Xiang Gao
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Hepatopancreatobiliary Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Centre, Nanjing University, Nanjing, China
| | - Zhaoyu Lin
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Hepatopancreatobiliary Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Centre, Nanjing University, Nanjing, China
| | - Yanbing Ding
- Pancreatic Center, Department of Gastroenterology, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Juanjuan Shi
- State Key Laboratory of Oncogenes and Related Genes, Stem Cell Research Centre, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhihui Tong
- Center of Severe Acute Pancreatitis (CASP), Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Tingting Liu
- Department and Laboratory of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, China
| | - Rajarshi Mukherjee
- Liverpool Pancreatitis Research Group, Liverpool University Hospitals NHS Foundation Trust and Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Robert Sutton
- Liverpool Pancreatitis Research Group, Liverpool University Hospitals NHS Foundation Trust and Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Guotao Lu
- Pancreatic Center, Department of Gastroenterology, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Weiqin Li
- Center of Severe Acute Pancreatitis (CASP), Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, China.,Center of Severe Acute Pancreatitis (CASP), Department of Critical Care Medicine, Jinling Hospital, Nanjing Medical University, Nanjing, China
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16
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Petersen OH, Gerasimenko JV, Gerasimenko OV, Gryshchenko O, Peng S. The roles of calcium and ATP in the physiology and pathology of the exocrine pancreas. Physiol Rev 2021; 101:1691-1744. [PMID: 33949875 DOI: 10.1152/physrev.00003.2021] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
This review deals with the roles of calcium ions and ATP in the control of the normal functions of the different cell types in the exocrine pancreas as well as the roles of these molecules in the pathophysiology of acute pancreatitis. Repetitive rises in the local cytosolic calcium ion concentration in the apical part of the acinar cells not only activate exocytosis but also, via an increase in the intramitochondrial calcium ion concentration, stimulate the ATP formation that is needed to fuel the energy-requiring secretion process. However, intracellular calcium overload, resulting in a global sustained elevation of the cytosolic calcium ion concentration, has the opposite effect of decreasing mitochondrial ATP production, and this initiates processes that lead to necrosis. In the last few years it has become possible to image calcium signaling events simultaneously in acinar, stellate, and immune cells in intact lobules of the exocrine pancreas. This has disclosed processes by which these cells interact with each other, particularly in relation to the initiation and development of acute pancreatitis. By unraveling the molecular mechanisms underlying this disease, several promising therapeutic intervention sites have been identified. This provides hope that we may soon be able to effectively treat this often fatal disease.
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Affiliation(s)
- Ole H Petersen
- School of Biosciences, Cardiff University, Cardiff, United Kingdom
| | | | | | | | - Shuang Peng
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Medicine, Jinan University, Guangzhou, Guangdong, People's Republic of China
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17
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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: 11] [Impact Index Per Article: 3.7] [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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18
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Yang X, Yao L, Fu X, Mukherjee R, Xia Q, Jakubowska MA, Ferdek PE, Huang W. Experimental Acute Pancreatitis Models: History, Current Status, and Role in Translational Research. Front Physiol 2020; 11:614591. [PMID: 33424638 PMCID: PMC7786374 DOI: 10.3389/fphys.2020.614591] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 11/30/2020] [Indexed: 02/05/2023] Open
Abstract
Acute pancreatitis is a potentially severe inflammatory disease that may be associated with a substantial morbidity and mortality. Currently there is no specific treatment for the disease, which indicates an ongoing demand for research into its pathogenesis and development of new therapeutic strategies. Due to the unpredictable course of acute pancreatitis and relatively concealed anatomical site in the retro-peritoneum, research on the human pancreas remains challenging. As a result, for over the last 100 years studies on the pathogenesis of this disease have heavily relied on animal models. This review aims to summarize different animal models of acute pancreatitis from the past to present and discuss their main characteristics and applications. It identifies key studies that have enhanced our current understanding of the pathogenesis of acute pancreatitis and highlights the instrumental role of animal models in translational research for developing novel therapies.
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Affiliation(s)
- Xinmin Yang
- Department of Integrated Traditional Chinese Medicine and Western Medicine, Sichuan Provincial Pancreatitis Center and West China-Liverpool Biomedical Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Linbo Yao
- Department of Integrated Traditional Chinese Medicine and Western Medicine, Sichuan Provincial Pancreatitis Center and West China-Liverpool Biomedical Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xianghui Fu
- Division of Endocrinology and Metabolism, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Rajarshi Mukherjee
- Liverpool Pancreatitis Research Group, Liverpool University Hospitals National Health Service Foundation Trust and Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Qing Xia
- Department of Integrated Traditional Chinese Medicine and Western Medicine, Sichuan Provincial Pancreatitis Center and West China-Liverpool Biomedical Research Center, West China Hospital, Sichuan University, Chengdu, China
| | | | - Pawel E. Ferdek
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Wei Huang
- Department of Integrated Traditional Chinese Medicine and Western Medicine, Sichuan Provincial Pancreatitis Center and West China-Liverpool Biomedical Research Center, West China Hospital, Sichuan University, Chengdu, China
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19
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Gryshchenko O, Gerasimenko JV, Petersen OH, Gerasimenko OV. Calcium Signaling in Pancreatic Immune Cells In situ. FUNCTION (OXFORD, ENGLAND) 2020; 2:zqaa026. [PMID: 35330972 PMCID: PMC8788766 DOI: 10.1093/function/zqaa026] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 10/05/2020] [Accepted: 10/06/2020] [Indexed: 01/06/2023]
Abstract
Immune cells were identified in intact live mouse pancreatic lobules and their Ca2+ signals, evoked by various agents, characterized and compared with the simultaneously recorded Ca2+ signals in neighboring acinar and stellate cells. Immunochemistry in the live lobules indicated that the pancreatic immune cells most likely are macrophages. In the normal pancreas the density of these cells is very low, but induction of acute pancreatitis (AP), by a combination of ethanol and fatty acids, markedly increased the number of the immune cells. The principal agent eliciting Ca2+ signals in the pancreatic immune cells was ATP, but these cells also frequently produced Ca2+ signals in response to acetylcholine and to high concentrations of bradykinin. Pharmacological studies, using specific purinergic agonists and antagonists, indicated that the ATP-elicited Ca2+ signals were mediated by both P2Y1 and P2Y13 receptors. The pancreatic immune cells were not electrically excitable and the Ca2+ signals generated by ATP were primarily due to release of Ca2+ from internal stores followed by store-operated Ca2+ entry through Ca2+ release-activated Ca2+ channels. The ATP-induced intracellular Ca2+ liberation was dependent on both IP3 generation and IP3 receptors. We propose that the ATP-elicited Ca2+ signal generation in the pancreatic immune cells is likely to play an important role in the severe inflammatory response to the primary injury of the acinar cells that occurs in AP.
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Affiliation(s)
- Oleksiy Gryshchenko
- Cardiff School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK,Bogomoletz Institute of Physiology, Kyiv 01024, Ukraine
| | | | - Ole H Petersen
- Cardiff School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK
| | - Oleg V Gerasimenko
- Cardiff School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK,Corresponding author. E-mail:
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20
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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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21
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Chung KM, Singh J, Lawres L, Dorans KJ, Garcia C, Burkhardt DB, Robbins R, Bhutkar A, Cardone R, Zhao X, Babic A, Vayrynen SA, Dias Costa A, Nowak JA, Chang DT, Dunne RF, Hezel AF, Koong AC, Wilhelm JJ, Bellin MD, Nylander V, Gloyn AL, McCarthy MI, Kibbey RG, Krishnaswamy S, Wolpin BM, Jacks T, Fuchs CS, Muzumdar MD. Endocrine-Exocrine Signaling Drives Obesity-Associated Pancreatic Ductal Adenocarcinoma. Cell 2020; 181:832-847.e18. [PMID: 32304665 PMCID: PMC7266008 DOI: 10.1016/j.cell.2020.03.062] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 02/13/2020] [Accepted: 03/27/2020] [Indexed: 12/30/2022]
Abstract
Obesity is a major modifiable risk factor for pancreatic ductal adenocarcinoma (PDAC), yet how and when obesity contributes to PDAC progression is not well understood. Leveraging an autochthonous mouse model, we demonstrate a causal and reversible role for obesity in early PDAC progression, showing that obesity markedly enhances tumorigenesis, while genetic or dietary induction of weight loss intercepts cancer development. Molecular analyses of human and murine samples define microenvironmental consequences of obesity that foster tumorigenesis rather than new driver gene mutations, including significant pancreatic islet cell adaptation in obesity-associated tumors. Specifically, we identify aberrant beta cell expression of the peptide hormone cholecystokinin (Cck) in response to obesity and show that islet Cck promotes oncogenic Kras-driven pancreatic ductal tumorigenesis. Our studies argue that PDAC progression is driven by local obesity-associated changes in the tumor microenvironment and implicate endocrine-exocrine signaling beyond insulin in PDAC development.
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Affiliation(s)
| | - Jaffarguriqbal Singh
- Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA; Yale Cancer Biology Institute, Yale University, West Haven, CT 06516, USA
| | - Lauren Lawres
- Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA; Yale Cancer Biology Institute, Yale University, West Haven, CT 06516, USA
| | | | - Cathy Garcia
- Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA; Yale Cancer Biology Institute, Yale University, West Haven, CT 06516, USA
| | - Daniel B Burkhardt
- Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Rebecca Robbins
- Koch Institute for Integrative Cancer Research at MIT, Cambridge, MA 02139, USA
| | - Arjun Bhutkar
- Koch Institute for Integrative Cancer Research at MIT, Cambridge, MA 02139, USA
| | - Rebecca Cardone
- Departments of Internal Medicine and Cellular & Molecular Physiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Xiaojian Zhao
- Departments of Internal Medicine and Cellular & Molecular Physiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Ana Babic
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02114, USA
| | - Sara A Vayrynen
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02114, USA
| | - Andressa Dias Costa
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02114, USA
| | - Jonathan A Nowak
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Daniel T Chang
- Department of Radiation Oncology, Stanford Cancer Institute, Stanford, CA 94305, USA
| | - Richard F Dunne
- Division of Hematology and Oncology, Department of Medicine, Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY 14627, USA
| | - Aram F Hezel
- Division of Hematology and Oncology, Department of Medicine, Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY 14627, USA
| | - Albert C Koong
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Joshua J Wilhelm
- Schulze Diabetes Institute and Department of Surgery, University of Minnesota Medical Center, Minneapolis, MN 55454, USA
| | - Melena D Bellin
- Schulze Diabetes Institute and Department of Surgery, University of Minnesota Medical Center, Minneapolis, MN 55454, USA; Department of Pediatrics, University of Minnesota Medical Center, Minneapolis, MN 55454, USA
| | - Vibe Nylander
- Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7BN, UK
| | - Anna L Gloyn
- Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7BN, UK; Oxford Centre for Diabetes, Endocrinology and Metabolism, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 7LE, UK; Oxford NIHR Biomedical Research Centre, Oxford University Hospitals Trust, Oxford OX3 7LE, UK
| | - Mark I McCarthy
- Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7BN, UK; Oxford Centre for Diabetes, Endocrinology and Metabolism, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 7LE, UK; Oxford NIHR Biomedical Research Centre, Oxford University Hospitals Trust, Oxford OX3 7LE, UK
| | - Richard G Kibbey
- Departments of Internal Medicine and Cellular & Molecular Physiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Smita Krishnaswamy
- Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Brian M Wolpin
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02114, USA
| | - Tyler Jacks
- Koch Institute for Integrative Cancer Research at MIT, Cambridge, MA 02139, USA; Howard Hughes Medical Institute, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Charles S Fuchs
- Yale Cancer Center, Smilow Cancer Hospital, New Haven, CT 06511, USA
| | - Mandar Deepak Muzumdar
- Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA; Yale Cancer Biology Institute, Yale University, West Haven, CT 06516, USA; Yale Cancer Center, Smilow Cancer Hospital, New Haven, CT 06511, USA.
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22
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Yamagiwa Y, Sawada N, Shimazu T, Yamaji T, Goto A, Takachi R, Ishihara J, Iwasaki M, Inoue M, Tsugane S. Soy Food Intake and Pancreatic Cancer Risk: The Japan Public Health Center–based Prospective Study. Cancer Epidemiol Biomarkers Prev 2020; 29:1214-1221. [DOI: 10.1158/1055-9965.epi-19-1254] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 01/31/2020] [Accepted: 03/10/2020] [Indexed: 11/16/2022] Open
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23
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Gökerküçük EB, Tramier M, Bertolin G. Imaging Mitochondrial Functions: from Fluorescent Dyes to Genetically-Encoded Sensors. Genes (Basel) 2020; 11:genes11020125. [PMID: 31979408 PMCID: PMC7073610 DOI: 10.3390/genes11020125] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 12/18/2022] Open
Abstract
Mitochondria are multifunctional organelles that are crucial to cell homeostasis. They constitute the major site of energy production for the cell, they are key players in signalling pathways using secondary messengers such as calcium, and they are involved in cell death and redox balance paradigms. Mitochondria quickly adapt their dynamics and biogenesis rates to meet the varying energy demands of the cells, both in normal and in pathological conditions. Therefore, understanding simultaneous changes in mitochondrial functions is crucial in developing mitochondria-based therapy options for complex pathological conditions such as cancer, neurological disorders, and metabolic syndromes. To this end, fluorescence microscopy coupled to live imaging represents a promising strategy to track these changes in real time. In this review, we will first describe the commonly available tools to follow three key mitochondrial functions using fluorescence microscopy: Calcium signalling, mitochondrial dynamics, and mitophagy. Then, we will focus on how the development of genetically-encoded fluorescent sensors became a milestone for the understanding of these mitochondrial functions. In particular, we will show how these tools allowed researchers to address several biochemical activities in living cells, and with high spatiotemporal resolution. With the ultimate goal of tracking multiple mitochondrial functions simultaneously, we will conclude by presenting future perspectives for the development of novel genetically-encoded fluorescent biosensors.
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Abstract
The incidence of acute pancreatitis continues to increase worldwide, and it is one of the most common gastrointestinal causes for hospital admission in the USA. In the past decade, substantial advancements have been made in our understanding of the pathophysiological mechanisms of acute pancreatitis. Studies have elucidated mechanisms of calcium-mediated acinar cell injury and death and the importance of store-operated calcium entry channels and mitochondrial permeability transition pores. The cytoprotective role of the unfolded protein response and autophagy in preventing sustained endoplasmic reticulum stress, apoptosis and necrosis has also been characterized, as has the central role of unsaturated fatty acids in causing pancreatic organ failure. Characterization of these pathways has led to the identification of potential molecular targets for future therapeutic trials. At the patient level, two classification systems have been developed to classify the severity of acute pancreatitis into prognostically meaningful groups, and several landmark clinical trials have informed management strategies in areas of nutritional support and interventions for infected pancreatic necrosis that have resulted in important changes to acute pancreatitis management paradigms. In this Review, we provide a summary of recent advances in acute pancreatitis with a special emphasis on pathophysiological mechanisms and clinical management of the disorder.
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25
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Mukherjee R, Nunes Q, Huang W, Sutton R. Precision medicine for acute pancreatitis: current status and future opportunities. PRECISION CLINICAL MEDICINE 2019; 2:81-86. [PMID: 35692449 PMCID: PMC8985768 DOI: 10.1093/pcmedi/pbz010] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 05/14/2019] [Accepted: 06/14/2019] [Indexed: 12/26/2022] Open
Abstract
Abstract
Acute pancreatitis is a common inflammatory condition affecting the pancreas, predominantly caused by gallstones, alcohol excess, and hypertriglyceridaemia, with severe disease carrying up to 50% mortality. Despite significant research and preclinical promise, no targeted drug treatments exist for the disease and precision medicine approaches are lacking significantly, when compared to other health conditions. Advances in omics applications will facilitate improved preclinical models and target identification as well as biomarker discovery for refined trial design, focusing on risk stratification, subject selection, and outcome determination. Randomised treatment of Acute Pancreatitis with Infliximab: Double-blind, placebo-controlled, multi-centre trial (RAPID-I) is a pioneering trial, currently under way in acute pancreatitis, which may serve as an innovative model for the implementation of precision medicine strategies for acute pancreatitis in the future.
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Affiliation(s)
- Rajarshi Mukherjee
- Liverpool Pancreatitis Research Group, Royal Liverpool University Hospital and Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Quentin Nunes
- Liverpool Pancreatitis Research Group, Royal Liverpool University Hospital and Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Wei Huang
- Liverpool Pancreatitis Research Group, Royal Liverpool University Hospital and Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Robert Sutton
- Liverpool Pancreatitis Research Group, Royal Liverpool University Hospital and Institute of Translational Medicine, University of Liverpool, Liverpool, UK
- Correspondence: Robert Sutton,
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Waldron RT, Chen Y, Pham H, Go A, Su HY, Hu C, Wen L, Husain SZ, Sugar CA, Roos J, Ramos S, Lugea A, Dunn M, Stauderman K, Pandol SJ. The Orai Ca 2+ channel inhibitor CM4620 targets both parenchymal and immune cells to reduce inflammation in experimental acute pancreatitis. J Physiol 2019; 597:3085-3105. [PMID: 31050811 DOI: 10.1113/jp277856] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 05/02/2019] [Indexed: 02/05/2023] Open
Abstract
KEY POINTS This work confirms previous reports that CM4620, a small molecule inhibitor of Ca2+ entry via store operated Ca2+ entry (SOCE) channels formed by stromal interaction molecule 1 (STIM1)/Orai complexes, attenuates acinar cell pathology and acute pancreatitis in mouse experimental models. Here we report that intravenous administration of CM4620 reduces the severity of acute pancreatitis in the rat, a hitherto untested species. Using CM4620, we probe further the mechanisms whereby SOCE via STIM1/Orai complexes contributes to the disease in pancreatic acinar cells, supporting a role for endoplasmic reticulum stress/cell death pathways in these cells. Using CM4620, we show that SOCE via STIM1/Orai complexes promotes neutrophil oxidative burst and inflammatory gene expression during acute pancreatitis, including in immune cells which may be either circulating or invading the pancreas. Using CM4620, we show that SOCE via STIM1/Orai complexes promotes activation and fibroinflammatory gene expression within pancreatic stellate cells. ABSTRACT Key features of acute pancreatitis include excess cellular Ca2+ entry driven by Ca2+ depletion from the endoplasmic reticulum (ER) and subsequent activation of store-operated Ca2+ entry (SOCE) channels in the plasma membrane. In several cell types, including pancreatic acinar, stellate cells (PaSCs) and immune cells, SOCE is mediated via channels composed primarily of Orai1 and stromal interaction molecule 1 (STIM1). CM4620, a selective Orai1 inhibitor, prevents Ca2+ entry in acinar cells. This study investigates the effects of CM4620 in preventing or reducing acute pancreatitis features and severity. We tested the effects of CM4620 on SOCE, trypsinogen activation, acinar cell death, activation of NFAT and NF-κB, and inflammatory responses in ex vivo and in vivo rodent models of acute pancreatitis and human pancreatic acini. We also examined whether CM4620 inhibited cytokine release in immune cells, fibro-inflammatory responses in PaSCs, and oxidative burst in neutrophils, all cell types participating in pancreatitis. CM4620 administration to rats by i.v. infusion starting 30 min after induction of pancreatitis significantly diminished pancreatitis features including pancreatic oedema, acinar cell vacuolization, intrapancreatic trypsin activity, cell death signalling and acinar cell death. CM4620 also decreased myeloperoxidase activity and inflammatory cytokine expression in pancreas and lung tissues, fMLF peptide-induced oxidative burst in human neutrophils, and cytokine production in human peripheral blood mononuclear cells (PBMCs) and rodent PaSCs, indicating that Orai1/STIM1 channels participate in the inflammatory responses of these cell types during acute pancreatitis. These findings support pathological Ca2+ entry-mediated cell death and proinflammatory signalling as central mechanisms in acute pancreatitis pathobiology.
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Affiliation(s)
- Richard T Waldron
- Cedars-Sinai Medical Center, Los Angeles, CA, USA.,Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA, USA.,University of California, Los Angeles, CA, USA
| | - Yafeng Chen
- Cedars-Sinai Medical Center, Los Angeles, CA, USA.,Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hung Pham
- Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Ariel Go
- Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Hsin-Yuan Su
- Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Cheng Hu
- Cedars-Sinai Medical Center, Los Angeles, CA, USA.,Department of Integrated Traditional Chinese and Western Medicine, West China Hospital/West China Medical School, Sichuan, China
| | - Li Wen
- University of Pittsburgh, Pittsburgh, PA, USA.,UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Sohail Z Husain
- University of Pittsburgh, Pittsburgh, PA, USA.,UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | | | | | | | - Aurelia Lugea
- Cedars-Sinai Medical Center, Los Angeles, CA, USA.,Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA, USA.,University of California, Los Angeles, CA, USA
| | | | | | - Stephen J Pandol
- Cedars-Sinai Medical Center, Los Angeles, CA, USA.,Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA, USA.,University of California, Los Angeles, CA, USA
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27
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Bharmal SH, Pendharkar SA, Singh RG, Petrov MS. Associations between gastrointestinal humoral factors and pancreatic proteolytic enzymes in alcohol-related versus non-alcohol-related pancreatitis. Alcohol 2019; 76:1-10. [PMID: 30529016 DOI: 10.1016/j.alcohol.2018.06.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 06/25/2018] [Accepted: 06/25/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND Alcohol-related pancreatitis is common and the gastrointestinal tract plays an important role in the regulation of pancreatic exocrine function. While the relationship between pancreatic proteolytic enzymes and insulin (as well as other pancreatic hormones) has been investigated in detail, little is known about the relationship between pancreatic proteolytic enzymes and gastrointestinal humoral factors. The aim of this study was to study the associations between trypsin, chymotrypsin, and a panel of gastrointestinal humoral factors in patients after an episode of alcohol-related versus non-alcohol-related pancreatitis. METHODS Fasting venous blood samples were analyzed for trypsin, chymotrypsin, cholecystokinin, gastrin, ghrelin, gastrin-related peptide, neuropeptide Y, peptide YY, secretin, and vasoactive intestinal peptide. Linear regression analysis was used in three statistical models, adjusting for covariates (age, sex, ethnicity, smoking, exercise, body mass index, dysglycemia, recurrence of pancreatitis, duration of pancreatitis, and severity of pancreatitis). RESULTS The study included 21 patients with alcohol-related pancreatitis and 72 with non-alcohol-related pancreatitis. Gastrin, cholecystokinin, and vasoactive intestinal peptide were significantly associated with chymotrypsin in all three statistical models and resulted in a 1.06, 1.98, and 2.74 times higher chymotrypsin level in alcohol-related pancreatitis, respectively. Ghrelin was significantly associated with trypsin in all three statistical models and resulted in a 2.64 times higher trypsin level in alcohol-related pancreatitis. Other associations did not demonstrate a consistent significant pattern. CONCLUSION In alcohol-related pancreatitis, several gut-related peptides are significantly associated with pancreatic exocrine function. Further studies to investigate the effect of alcohol on the interaction between cholecystokinin (as well as gastrin, ghrelin, and vasoactive intestinal peptide) and pancreatic exocrine function are warranted.
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28
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Piezo1 mediates neuron oxygen-glucose deprivation/reoxygenation injury via Ca2+/calpain signaling. Biochem Biophys Res Commun 2019; 513:147-153. [DOI: 10.1016/j.bbrc.2019.03.163] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 03/24/2019] [Indexed: 12/27/2022]
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Saluja A, Dudeja V, Dawra R, Sah RP. Early Intra-Acinar Events in Pathogenesis of Pancreatitis. Gastroenterology 2019; 156:1979-1993. [PMID: 30776339 DOI: 10.1053/j.gastro.2019.01.268] [Citation(s) in RCA: 137] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 01/09/2019] [Accepted: 01/21/2019] [Indexed: 12/11/2022]
Abstract
Premature activation of digestive enzymes in the pancreas has been linked to development of pancreatitis for more than a century. Recent development of novel models to study the role of pathologic enzyme activation has led to advances in our understanding of the mechanisms of pancreatic injury. Colocalization of zymogen and lysosomal fraction occurs early after pancreatitis-causing stimulus. Cathepsin B activates trypsinogen in these colocalized organelles. Active trypsin increases permeability of these organelles resulting in leakage of cathepsin B into the cytosol leading to acinar cell death. Although trypsin-mediated cell death leads to pancreatic injury in early stages of pancreatitis, multiple parallel mechanisms, including activation of inflammatory cascades, endoplasmic reticulum stress, autophagy, and mitochondrial dysfunction in the acinar cells are now recognized to be important in driving the profound systemic inflammatory response and extensive pancreatic injury seen in acute pancreatitis. Chymotrypsin, another acinar protease, has recently been shown be play critical role in clearance of pathologically activated trypsin protecting against pancreatic injury. Mutations in trypsin and other genes thought to be associated with pathologic enzyme activation (such as serine protease inhibitor 1) have been found in familial forms of pancreatitis. Sustained intra-acinar activation of nuclear factor κB pathway seems to be key pathogenic mechanism in chronic pancreatitis. Better understanding of these mechanisms will hopefully allow us to improve treatment strategies in acute and chronic pancreatitis.
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Mitochondrial Targeting of Antioxidants Alters Pancreatic Acinar Cell Bioenergetics and Determines Cell Fate. Int J Mol Sci 2019; 20:ijms20071700. [PMID: 30959771 PMCID: PMC6480340 DOI: 10.3390/ijms20071700] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 03/27/2019] [Accepted: 04/03/2019] [Indexed: 12/11/2022] Open
Abstract
Mitochondrial dysfunction is a core feature of acute pancreatitis, a severe disease in which oxidative stress is elevated. Mitochondrial targeting of antioxidants is a potential therapeutic strategy for this and other diseases, although thus far mixed results have been reported. We investigated the effects of mitochondrial targeting with the antioxidant MitoQ on pancreatic acinar cell bioenergetics, adenosine triphosphate (ATP) production and cell fate, in comparison with the non-antioxidant control decyltriphenylphosphonium bromide (DecylTPP) and general antioxidant N-acetylcysteine (NAC). MitoQ (µM range) and NAC (mM range) caused sustained elevations of basal respiration and the inhibition of spare respiratory capacity, which was attributable to an antioxidant action since these effects were minimal with DecylTPP. Although MitoQ but not DecylTPP decreased cellular NADH levels, mitochondrial ATP turnover capacity and cellular ATP concentrations were markedly reduced by both MitoQ and DecylTPP, indicating a non-specific effect of mitochondrial targeting. All three compounds were associated with a compensatory elevation of glycolysis and concentration-dependent increases in acinar cell apoptosis and necrosis. These data suggest that reactive oxygen species (ROS) contribute a significant negative feedback control of basal cellular metabolism. Mitochondrial targeting using positively charged molecules that insert into the inner mitochondrial member appears to be deleterious in pancreatic acinar cells, as does an antioxidant strategy for the treatment of acute pancreatitis.
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Williams JA. Cholecystokinin (CCK) Regulation of Pancreatic Acinar Cells: Physiological Actions and Signal Transduction Mechanisms. Compr Physiol 2019; 9:535-564. [PMID: 30873601 DOI: 10.1002/cphy.c180014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Pancreatic acinar cells synthesize and secrete about 20 digestive enzymes and ancillary proteins with the processes that match the supply of these enzymes to their need in digestion being regulated by a number of hormones (CCK, secretin and insulin), neurotransmitters (acetylcholine and VIP) and growth factors (EGF and IGF). Of these regulators, one of the most important and best studied is the gastrointestinal hormone, cholecystokinin (CCK). Furthermore, the acinar cell has become a model for seven transmembrane, heterotrimeric G protein coupled receptors to regulate multiple processes by distinct signal transduction cascades. In this review, we briefly describe the chemistry and physiology of CCK and then consider the major physiological effects of CCK on pancreatic acinar cells. The majority of the review is devoted to the physiologic signaling pathways activated by CCK receptors and heterotrimeric G proteins and the functions they affect. The pathways covered include the traditional second messenger pathways PLC-IP3-Ca2+ , DAG-PKC, and AC-cAMP-PKA/EPAC that primarily relate to secretion. Then there are the protein-protein interaction pathways Akt-mTOR-S6K, the three major MAPK pathways (ERK, JNK, and p38 MAPK), and Ca2+ -calcineurin-NFAT pathways that primarily regulate non-secretory processes including biosynthesis and growth, and several miscellaneous pathways that include the Rho family small G proteins, PKD, FAK, and Src that may regulate both secretory and nonsecretory processes but are not as well understood. © 2019 American Physiological Society. Compr Physiol 9:535-564, 2019.
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Affiliation(s)
- John A Williams
- University of Michigan, Departments of Molecular & Integrative Physiology and Internal Medicine (Gastroenterology), Ann Arbor, Michigan, USA
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Mussa BM, Sood S, Verberne AJM. Implication of neurohormonal-coupled mechanisms of gastric emptying and pancreatic secretory function in diabetic gastroparesis. World J Gastroenterol 2018; 24:3821-3833. [PMID: 30228777 PMCID: PMC6141338 DOI: 10.3748/wjg.v24.i34.3821] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 06/22/2018] [Accepted: 06/27/2018] [Indexed: 02/06/2023] Open
Abstract
Recently, diabetic gastroparesis (DGP) has received much attention as its prevalence is increasing in a dramatic fashion and management of patients with DGP represents a challenge in the clinical practice due to the limited therapeutic options. DGP highlights an interrelationship between the gastric emptying and pancreatic secretory function that regulate a wide range of digestive and metabolic functions, respectively. It well documented that both gastric emptying and pancreatic secretion are under delicate control by multiple neurohormonal mechanisms including extrinsic parasympathetic pathways and gastrointestinal (GI) hormones. Interestingly, the latter released in response to various determinants that related to the rate and quality of gastric emptying. Others and we have provided strong evidence that the central autonomic nuclei send a dual output (excitatory and inhibitory) to the stomach and the pancreas in response to a variety of hormonal signals from the abdominal viscera. Most of these hormones released upon gastric emptying to provide feedback, and control this process and simultaneously regulate pancreatic secretion and postprandial glycemia. These findings emphasize an important link between gastric emptying and pancreatic secretion and its role in maintaining homeostatic processes within the GI tract. The present review deals with the neurohormonal-coupled mechanisms of gastric emptying and pancreatic secretory function that implicated in DGP and this provides new insights in our understanding of the pathophysiology of DGP. This also enhances the process of identifying potential therapeutic targets to treat DGP and limit the complications of current management practices.
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Affiliation(s)
- Bashair M Mussa
- Department of Basic Medical Science, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Sanjay Sood
- Department of Basic Medical Science, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Anthony JM Verberne
- Department of Medicine, Austin Health, University of Melbourne, Melbourne 3084, Australia
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Nurbaeva MK, Eckstein M, Devotta A, Saint-Jeannet JP, Yule DI, Hubbard MJ, Lacruz RS. Evidence That Calcium Entry Into Calcium-Transporting Dental Enamel Cells Is Regulated by Cholecystokinin, Acetylcholine and ATP. Front Physiol 2018; 9:801. [PMID: 30013487 PMCID: PMC6036146 DOI: 10.3389/fphys.2018.00801] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 06/07/2018] [Indexed: 01/06/2023] Open
Abstract
Dental enamel is formed by specialized epithelial cells which handle large quantities of Ca2+ while producing the most highly mineralized tissue. However, the mechanisms used by enamel cells to handle bulk Ca2+ safely remain unclear. Our previous work contradicted the dogma that Ca2+ is ferried through the cytosol of Ca2+-transporting cells and instead suggested an organelle-based route across enamel cells. This new paradigm involves endoplasmic reticulum (ER)-associated Ca2+ stores and their concomitant refilling by store-operated Ca2+ entry (SOCE) mediated by Ca2+ release activated Ca2+ (CRAC) channels. Given that Ca2+ handling is maximal during the enamel-mineralization stage (maturation), we anticipated that SOCE would also be elevated then. Confirmation was obtained here using single-cell recordings of cytosolic Ca2+ concentration ([Ca2+]cyt) in rat ameloblasts. A candidate SOCE agonist, cholecystokinin (CCK), was found to be upregulated during maturation, with Cck transcript abundance reaching 30% of that in brain. CCK-receptor transcripts were also detected and Ca2+ imaging showed that CCK stimulation increased [Ca2+]cyt in a dose-responsive manner that was sensitive to CRAC-channel inhibitors. Similar effects were observed with two other SOCE activators, acetylcholine and ATP, whose receptors were also found in enamel cells. These results provide the first evidence of a potential regulatory system for SOCE in enamel cells and so strengthen the Ca2+ transcytosis paradigm for ER-based transport of bulk Ca2+. Our findings also implicate enamel cells as a new physiological target of CCK and raise the possibility of an auto/paracrine system for regulating Ca2+ transport.
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Affiliation(s)
- Meerim K Nurbaeva
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, NY, United States
| | - Miriam Eckstein
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, NY, United States
| | - Arun Devotta
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, NY, United States
| | - Jean-Pierre Saint-Jeannet
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, NY, United States
| | - David I Yule
- Department of Pharmacology and Physiology, University of Rochester, Rochester, NY, United States
| | - Michael J Hubbard
- Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Rodrigo S Lacruz
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, NY, United States
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Alahmari AA, Sreekumar B, Patel V, Ashat M, Alexandre M, Uduman AK, Akinbiyi EO, Ceplenski A, Shugrue CA, Kolodecik TR, Tashkandi N, Messenger SW, Groblewski GE, Gorelick FS, Thrower EC. Cigarette toxin 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) induces experimental pancreatitis through α7 nicotinic acetylcholine receptors (nAChRs) in mice. PLoS One 2018; 13:e0197362. [PMID: 29870540 PMCID: PMC5988302 DOI: 10.1371/journal.pone.0197362] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 05/01/2018] [Indexed: 01/29/2023] Open
Abstract
Clinical studies have shown that cigarette smoking is a dose-dependent and independent risk factor for acute pancreatitis. Cigarette smoke contains nicotine which can be converted to the potent receptor ligand and toxin, NNK [4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone]. Previously, we have shown that NNK induces premature activation of pancreatic zymogens in rats, an initiating event in pancreatitis, and this activation is prevented by pharmacologic inhibition of nicotinic acetylcholine receptors (nAChR). In this study, we determined whether NNK mediates pancreatitis through the α7 isoform of nAChR using α7nAChR knockout mice. PCR analysis confirmed expression of non-neuronal α7nAChR in C57BL/6 (WT) mouse and human acinar cells. NNK treatment stimulated trypsinogen activation in acini from WT but not α7nAChR-/- mice. NNK also stimulated trypsinogen activation in human acini. To further confirm these findings, WT and α7nAChR-/- mice were treated with NNK in vivo and markers of pancreatitis were measured. As observed in acini NNK treatment induced trypsinogen activation in WT but not α7nAChR-/- mice. NNK also induced other markers of pancreatitis including pancreatic edema, vacuolization and pyknotic nuclei in WT but not α7nAChR-/- animals. NNK treatment led to increased neutrophil infiltration, a marker of inflammation, in WT mice and to a significantly lesser extent in α7nAChR-/- mice. We also examined downstream targets of α7nAChR activation and found that calcium and PKC activation are involved down stream of NNK stimulation of α7nAChR. In this study we used genetic deletion of the α7nAChR to confirm our previous inhibitor studies that demonstrated NNK stimulates pancreatitis by activating this receptor. Lastly, we demonstrate that NNK can also stimulate zymogen activation in human acinar cells and thus may play a role in human disease.
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Affiliation(s)
- A. A. Alahmari
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - B. Sreekumar
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - V. Patel
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - M. Ashat
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - M. Alexandre
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - A. K. Uduman
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - E. O. Akinbiyi
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - A. Ceplenski
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - C. A. Shugrue
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - T. R. Kolodecik
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - N. Tashkandi
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - S. W. Messenger
- Department of Nutritional Sciences, University of Wisconsin, Madison, Wisconsin, United States of America
| | - G. E. Groblewski
- Department of Nutritional Sciences, University of Wisconsin, Madison, Wisconsin, United States of America
| | - F. S. Gorelick
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
- Department of Cell Biology, Yale University School of Medicine, New Haven, CT, United States of America
| | - E. C. Thrower
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
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Cao Y, Yang X, Guo L, Zheng C, Wang D, Cai C, Liu S, Yao J. Effects of dietary leucine and phenylalanine on pancreas development, enzyme activity, and relative gene expression in milk-fed Holstein dairy calves. J Dairy Sci 2018; 101:4235-4244. [DOI: 10.3168/jds.2017-13987] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 01/04/2018] [Indexed: 12/18/2022]
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Gryshchenko O, Gerasimenko JV, Peng S, Gerasimenko OV, Petersen OH. Calcium signalling in the acinar environment of the exocrine pancreas: physiology and pathophysiology. J Physiol 2018; 596:2663-2678. [PMID: 29424931 PMCID: PMC6046068 DOI: 10.1113/jp275395] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 01/25/2018] [Indexed: 12/12/2022] Open
Abstract
Key points Ca2+ signalling in different cell types in exocrine pancreatic lobules was monitored simultaneously and signalling responses to various stimuli were directly compared. Ca2+ signals evoked by K+‐induced depolarization were recorded from pancreatic nerve cells. Nerve cell stimulation evoked Ca2+ signals in acinar but not in stellate cells. Stellate cells are not electrically excitable as they, like acinar cells, did not generate Ca2+ signals in response to membrane depolarization. The responsiveness of the stellate cells to bradykinin was markedly reduced in experimental alcohol‐related acute pancreatitis, but they became sensitive to stimulation with trypsin. Our results provide fresh evidence for an important role of stellate cells in acute pancreatitis. They seem to be a critical element in a vicious circle promoting necrotic acinar cell death. Initial trypsin release from a few dying acinar cells generates Ca2+ signals in the stellate cells, which then in turn damage more acinar cells causing further trypsin liberation.
Abstract Physiological Ca2+ signals in pancreatic acinar cells control fluid and enzyme secretion, whereas excessive Ca2+ signals induced by pathological agents induce destructive processes leading to acute pancreatitis. Ca2+ signals in the peri‐acinar stellate cells may also play a role in the development of acute pancreatitis. In this study, we explored Ca2+ signalling in the different cell types in the acinar environment of the pancreatic tissue. We have, for the first time, recorded depolarization‐evoked Ca2+ signals in pancreatic nerves and shown that whereas acinar cells receive a functional cholinergic innervation, there is no evidence for functional innervation of the stellate cells. The stellate, like the acinar, cells are not electrically excitable as they do not generate Ca2+ signals in response to membrane depolarization. The principal agent evoking Ca2+ signals in the stellate cells is bradykinin, but in experimental alcohol‐related acute pancreatitis, these cells become much less responsive to bradykinin and then acquire sensitivity to trypsin. Our new findings have implications for our understanding of the development of acute pancreatitis and we propose a scheme in which Ca2+ signals in stellate cells provide an amplification loop promoting acinar cell death. Initial release of the proteases kallikrein and trypsin from dying acinar cells can, via bradykinin generation and protease‐activated receptors, induce Ca2+ signals in stellate cells which can then, possibly via nitric oxide generation, damage more acinar cells and thereby cause additional release of proteases, generating a vicious circle. Ca2+ signalling in different cell types in exocrine pancreatic lobules was monitored simultaneously and signalling responses to various stimuli were directly compared. Ca2+ signals evoked by K+‐induced depolarization were recorded from pancreatic nerve cells. Nerve cell stimulation evoked Ca2+ signals in acinar but not in stellate cells. Stellate cells are not electrically excitable as they, like acinar cells, did not generate Ca2+ signals in response to membrane depolarization. The responsiveness of the stellate cells to bradykinin was markedly reduced in experimental alcohol‐related acute pancreatitis, but they became sensitive to stimulation with trypsin. Our results provide fresh evidence for an important role of stellate cells in acute pancreatitis. They seem to be a critical element in a vicious circle promoting necrotic acinar cell death. Initial trypsin release from a few dying acinar cells generates Ca2+ signals in the stellate cells, which then in turn damage more acinar cells causing further trypsin liberation.
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Affiliation(s)
- Oleksiy Gryshchenko
- Cardiff School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK.,Bogomoletz Institute of Physiology, Kyiv 01024, Ukraine
| | | | - Shuang Peng
- Cardiff School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK.,Department of Physiology, Medical College, Jinan University, Guangzhou 510632, China
| | | | - Ole H Petersen
- Cardiff School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK.,Systems Immunity Research Institute, Cardiff University, Cardiff, CF14 4XN, UK
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TRO40303 Ameliorates Alcohol-Induced Pancreatitis Through Reduction of Fatty Acid Ethyl Ester-Induced Mitochondrial Injury and Necrotic Cell Death. Pancreas 2018; 47:18-24. [PMID: 29200128 PMCID: PMC5753827 DOI: 10.1097/mpa.0000000000000953] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Mitochondrial permeability transition pore inhibition is a promising approach to treat acute pancreatitis (AP). We sought to determine (i) the effects of the mitochondrial permeability transition pore inhibitor 3,5-seco-4-nor-cholestan-5-one oxime-3-ol (TRO40303) on murine and human pancreatic acinar cell (PAC) injury induced by fatty acid ethyl esters (FAEEs) or taurolithocholic acid-3-sulfate and (ii) TRO40303 pharmacokinetics and efficacy in experimental alcoholic AP (FAEE-AP). METHODS Changes in mitochondrial membrane potential (Δψm), cytosolic Ca ([Ca]c), and cell fate were examined in freshly isolated murine or human PACs by confocal microscopy. TRO40303 pharmacokinetics were assessed in cerulein-induced AP and therapeutic efficacy in FAEE-AP induced with palmitoleic acid and ethanol. Severity of AP was assessed by standard biomarkers and blinded histopathology. RESULTS TRO40303 prevented loss of Δψm and necrosis induced by 100 μM palmitoleic acid ethyl ester or 500 μM taurolithocholic acid-3-sulfate in murine and human PACs. Pharmacokinetic analysis found TRO40303 accumulated in the pancreas. A single dose of 3 mg/kg TRO40303 significantly reduced serum amylase (P = 0.043), pancreatic trypsin (P = 0.018), and histopathology scores (P = 0.0058) in FAEE-AP. CONCLUSIONS TRO40303 protects mitochondria and prevents necrotic cell death pathway activation in murine and human PACs, ameliorates the severity of FAEE-AP, and is a candidate drug for human AP.
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Malnutrition in Pancreatic Ductal Adenocarcinoma (PDA): Dietary Pancreatic Enzymes Improve Short-Term Health but Stimulate Tumor Growth. THE AMERICAN JOURNAL OF PATHOLOGY 2017; 188:616-626. [PMID: 29248457 DOI: 10.1016/j.ajpath.2017.11.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 10/20/2017] [Accepted: 11/09/2017] [Indexed: 02/07/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDA) is a deadly cancer that resists efforts to identify better chemotherapeutics. PDA is associated with chronic pancreatitis and acinar cell dedifferentiation. This reduces enzyme production by the exocrine pancreas, resulting in digestive insufficiencies. Malabsorption of partially digested food causes bloating, overfilled intestines, abdominal pain, excessive feces, steatorrhea, and malnutrition. These maladies affect quality of life and restrict treatment options for pancreatitis and PDA. Here, we characterize health benefits and risks of dietary pancreatic enzymes in three mouse models of PDA-KC, KCR8-16, and KIC. KC expresses oncogenic KrasG12D in pancreatic tissue whereas KCR8-16 also has deletions of the Rgs8 and Rgs16 genes. Rgs proteins inhibit the release of digestive enzymes evoked by G-protein-coupled-receptor agonists. KC and KCR8-16 mice developed dedifferentiated exocrine pancreata within 2 months of age and became malnourished, underweight, hypoglycemic, and hypothermic. KC mice adapted but KCR8-16 mice rapidly transitioned to starvation after mild metabolic challenges. Dietary pancreatic enzyme supplements reversed these symptoms in KC and KCR8-16 animals, and extended survival. Therefore, we tested the benefits of pancreatic enzymes in an aggressive mouse model of PDA (KIC). Median survival improved with dietary pancreatic enzyme supplements and was extended further when combined with warfarin and gemcitabine chemotherapy. However, dietary pancreatic enzymes stimulated tumor growth in the terminal stages of disease progression in KIC mice.
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Acinar injury and early cytokine response in human acute biliary pancreatitis. Sci Rep 2017; 7:15276. [PMID: 29127325 PMCID: PMC5681596 DOI: 10.1038/s41598-017-15479-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 10/27/2017] [Indexed: 12/16/2022] Open
Abstract
Clinical acute pancreatitis (AP) is marked by an early phase of systemic inflammatory response syndrome (SIRS) with multiorgan dysfunction (MODS), and a late phase characterized by sepsis with MODS. However, the mechanisms of acinar injury in human AP and the associated systemic inflammation are not clearly understood. This study, for the first time, evaluated the early interactions of bile acid induced human pancreatic acinar injury and the resulting cytokine response. We exposed freshly procured resected human pancreata to taurolithocolic acid (TLCS) and evaluated for acinar injury, cytokine release and interaction with peripheral blood mononuclear cells (PBMCs). We observed autophagy in acinar cells in response to TLCS exposure. There was also time-dependent release of IL-6, IL-8 and TNF-α from the injured acini that resulted in activation of PBMCs. We also observed that cytokines secreted by activated PBMCs resulted in acinar cell apoptosis and further cytokine release from them. Our data suggests that the earliest immune response in human AP originates within the acinar cell itself, which subsequently activates circulating PBMCs leading to SIRS. These findings need further detailed evaluation so that specific therapeutic targets to curb SIRS and resulting early adverse outcomes could be identified and tested.
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40
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Maléth J, Hegyi P. Ca2+ toxicity and mitochondrial damage in acute pancreatitis: translational overview. Philos Trans R Soc Lond B Biol Sci 2017; 371:rstb.2015.0425. [PMID: 27377719 PMCID: PMC4938025 DOI: 10.1098/rstb.2015.0425] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/30/2016] [Indexed: 12/23/2022] Open
Abstract
Acute pancreatitis (AP) is a leading cause of hospitalization among non-malignant gastrointestinal disorders. The mortality of severe AP can reach 30-50%, which is most probably owing to the lack of specific treatment. Therefore, AP is a major healthcare problem, which urges researchers to identify novel drug targets. Studies from the last decades highlighted that the toxic cellular Ca(2+) overload and mitochondrial damage are key pathogenic steps in the disease development affecting both acinar and ductal cell functions. Moreover, recent observations showed that modifying the cellular Ca(2+) signalling might be beneficial in AP. The inhibition of Ca(2+) release from the endoplasmic reticulum or the activity of plasma membrane Ca(2+) influx channels decreased the severity of AP in experimental models. Similarly, inhibition of mitochondrial permeability transition pore (MPTP) opening also seems to improve the outcome of AP in in vivo animal models. At the moment MPTP blockers are under detailed clinical investigation to test whether interventions in MPTP openings and/or Ca(2+) homeostasis of the cells can be specific targets in prevention or treatment of cell damage in AP.This article is part of the themed issue 'Evolution brings Ca(2+) and ATP together to control life and death'.
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Affiliation(s)
- József Maléth
- First Department of Medicine, University of Szeged, Szeged, Hungary MTA-SZTE Momentum Translational Gastroenterology Research Group, University of Szeged, Szeged, Hungary
| | - Péter Hegyi
- First Department of Medicine, University of Szeged, Szeged, Hungary MTA-SZTE Momentum Translational Gastroenterology Research Group, University of Szeged, Szeged, Hungary Institute for Translational Medicine, University of Pécs, Pécs, Hungary
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Lugea A, Waldron RT, Mareninova OA, Shalbueva N, Deng N, Su HY, Thomas DD, Jones EK, Messenger SW, Yang J, Hu C, Gukovsky I, Liu Z, Groblewski GE, Gukovskaya AS, Gorelick FS, Pandol SJ. Human Pancreatic Acinar Cells: Proteomic Characterization, Physiologic Responses, and Organellar Disorders in ex Vivo Pancreatitis. THE AMERICAN JOURNAL OF PATHOLOGY 2017; 187:2726-2743. [PMID: 28935577 DOI: 10.1016/j.ajpath.2017.08.017] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Revised: 06/30/2017] [Accepted: 08/03/2017] [Indexed: 12/17/2022]
Abstract
Knowledge of the molecular mechanisms of acute pancreatitis is largely based on studies using rodents. To assess similar mechanisms in humans, we performed ex vivo pancreatitis studies in human acini isolated from cadaveric pancreata from organ donors. Because data on these human acinar preparations are sparse, we assessed their functional integrity and cellular and organellar morphology using light, fluorescence, and electron microscopy; and their proteome by liquid chromatography-tandem mass spectrometry. Acinar cell responses to the muscarinic agonist carbachol (CCh) and the bile acid taurolithocholic acid 3-sulfate were also analyzed. Proteomic analysis of acini from donors of diverse ethnicity showed similar profiles of digestive enzymes and proteins involved in translation, secretion, and endolysosomal function. Human acini preferentially expressed the muscarinic acetylcholine receptor M3 and maintained physiological responses to CCh for at least 20 hours. As in rodent acini, human acini exposed to toxic concentrations of CCh and taurolithocholic acid 3-sulfate responded with trypsinogen activation, decreased cell viability, organelle damage manifest by mitochondrial depolarization, disordered autophagy, and pathological endoplasmic reticulum stress. Human acini also secreted inflammatory mediators elevated in acute pancreatitis patients, including IL-6, tumor necrosis factor-α, IL-1β, chemokine (C-C motif) ligands 2 and 3, macrophage inhibitory factor, and chemokines mediating neutrophil and monocyte infiltration. In conclusion, human cadaveric pancreatic acini maintain physiological functions and have similar pathological responses and organellar disorders with pancreatitis-causing treatments as observed in rodent acini.
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Affiliation(s)
- Aurelia Lugea
- Department of Medicine and Biomedical Sciences, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California; Department of Medicine, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, California; Veterans Administration Greater Los Angeles Healthcare System, Los Angeles, California.
| | - Richard T Waldron
- Department of Medicine and Biomedical Sciences, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California; Department of Medicine, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, California; Veterans Administration Greater Los Angeles Healthcare System, Los Angeles, California
| | - Olga A Mareninova
- Department of Medicine, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, California; Veterans Administration Greater Los Angeles Healthcare System, Los Angeles, California
| | - Natalia Shalbueva
- Department of Medicine, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, California; Veterans Administration Greater Los Angeles Healthcare System, Los Angeles, California
| | - Nan Deng
- Department of Biostatistics and Bioinformatics, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Hsin-Yuan Su
- Department of Medicine and Biomedical Sciences, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Diane D Thomas
- Department of Nutritional Sciences, University of Wisconsin, Madison, Wisconsin
| | - Elaina K Jones
- Department of Nutritional Sciences, University of Wisconsin, Madison, Wisconsin
| | - Scott W Messenger
- Department of Nutritional Sciences, University of Wisconsin, Madison, Wisconsin
| | - Jiayue Yang
- Department of Medicine and Biomedical Sciences, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Cheng Hu
- Department of Medicine and Biomedical Sciences, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Ilya Gukovsky
- Department of Medicine, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, California; Veterans Administration Greater Los Angeles Healthcare System, Los Angeles, California
| | - Zhenqiu Liu
- Department of Biostatistics and Bioinformatics, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Guy E Groblewski
- Department of Nutritional Sciences, University of Wisconsin, Madison, Wisconsin
| | - Anna S Gukovskaya
- Department of Medicine, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, California; Veterans Administration Greater Los Angeles Healthcare System, Los Angeles, California
| | - Fred S Gorelick
- Departments of Internal Medicine and Cell Biology, Yale University School of Medicine, New Haven, Connecticut; Veterans Administration Connecticut Healthcare, West Haven, Connecticut
| | - Stephen J Pandol
- Department of Medicine and Biomedical Sciences, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California; Department of Medicine, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, California; Veterans Administration Greater Los Angeles Healthcare System, Los Angeles, California
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Gerasimenko JV, Peng S, Tsugorka T, Gerasimenko OV. Ca 2+ signalling underlying pancreatitis. Cell Calcium 2017; 70:95-101. [PMID: 28552244 DOI: 10.1016/j.ceca.2017.05.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 05/16/2017] [Accepted: 05/16/2017] [Indexed: 12/13/2022]
Abstract
In spite of significant scientific progress in recent years, acute pancreatitis (AP) is still a dangerous and in up to 5% of cases deadly disease with no specific cure. It is self-resolved in the majority of cases, but could result in chronic pancreatitis (CP) and increased risk of pancreatic cancer (PC). One of the early events in AP is premature activation of digestive pro-enzymes, including trypsinogen, inside pancreatic acinar cells (PACs) due to an excessive rise in the cytosolic Ca2+ concentration, which is the result of Ca2+ release from internal stores followed by Ca2+ entry through the store operated Ca2+ channels in the plasma membrane. The leading causes of AP are high alcohol intake and biliary disease with gallstones obstruction leading to bile reflux into the pancreatic duct. Recently attention in this area of research turned to another cause of AP - Asparaginase based drugs - which have been used quite successfully in treatments of childhood acute lymphoblastic leukaemia (ALL). Unfortunately, Asparaginase is implicated in triggering AP in 5-10% of cases as a side effect of the anti-cancer therapy. The main features of Asparaginase-elicited AP (AAP) were found to be remarkably similar to AP induced by alcohol metabolites and bile acids. Several potential therapeutic avenues in counteracting AAP have been suggested and could also be useful for dealing with AP induced by other causes. Another interesting development in this field includes recent research related to pancreatic stellate cells (PSCs) that are much less studied in their natural environment but nevertheless critically involved in AP, CP and PC. This review will attempt to evaluate developments, approaches and potential therapies for AP and discuss links to other relevant diseases.
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Affiliation(s)
- J V Gerasimenko
- Cardiff School of Biosciences, Cardiff University, Cardiff CF10 3AX, Wales, UK.
| | - S Peng
- Cardiff School of Biosciences, Cardiff University, Cardiff CF10 3AX, Wales, UK; Department of Physiology, Medical College, Jinan University, Guangzhou 510632, China
| | - T Tsugorka
- Cardiff School of Biosciences, Cardiff University, Cardiff CF10 3AX, Wales, UK
| | - O V Gerasimenko
- Cardiff School of Biosciences, Cardiff University, Cardiff CF10 3AX, Wales, UK.
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Abstract
OBJECTIVES Caffeine is contained in coffee, tea, and numerous beverages and foods. We examined the direct effects of caffeine on the physiological function of pancreatic duct cells by using interlobular duct segments isolated from guinea pig pancreas. METHODS The rate of fluid secretion was continuously measured by monitoring the luminal volume of isolated duct segments. Changes in intracellular Ca concentration ([Ca]i) were estimated by microfluorometry in ducts loaded with Fura-2. RESULTS Both secretin-stimulated and acetylcholine (ACh)-stimulated fluid secretions were substantially and reversibly inhibited by relatively low concentrations of caffeine as low as 0.03 mM relevant to blood levels after ingestion of caffeine-containing beverages. Caffeine inhibited ACh-induced elevation of [Ca]i and secretin-induced fluctuation of [Ca]i. Caffeine abolished thapsigargin-induced intracellular Ca release but did not affect the entry of extracellular Ca. Caffeine (0.05 mM) abolished ethanol (1 mM)-induced fluid hypersecretion in secretin-stimulated pancreatic duct. CONCLUSIONS Low concentrations of caffeine directly inhibit pancreatic ductal fluid secretion stimulated by secretin or ACh and also ethanol-induced fluid hypersecretion. The inhibition by caffeine seems to be mediated by the blockade of intracellular Ca mobilization. Daily intake of caffeine may reduce the volume of pancreatic juice secretion.
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Liang T, Dolai S, Xie L, Winter E, Orabi AI, Karimian N, Cosen-Binker LI, Huang YC, Thorn P, Cattral MS, Gaisano HY. Ex vivo human pancreatic slice preparations offer a valuable model for studying pancreatic exocrine biology. J Biol Chem 2017; 292:5957-5969. [PMID: 28242761 DOI: 10.1074/jbc.m117.777433] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 02/17/2017] [Indexed: 12/13/2022] Open
Abstract
A genuine understanding of human exocrine pancreas biology and pathobiology has been hampered by a lack of suitable preparations and reliance on rodent models employing dispersed acini preparations. We have developed an organotypic slice preparation of the normal portions of human pancreas obtained from cancer resections. The preparation was assessed for physiologic and pathologic responses to the cholinergic agonist carbachol (Cch) and cholecystokinin (CCK-8), including 1) amylase secretion, 2) exocytosis, 3) intracellular Ca2+ responses, 4) cytoplasmic autophagic vacuole formation, and 5) protease activation. Cch and CCK-8 both dose-dependently stimulated secretory responses from human pancreas slices similar to those previously observed in dispersed rodent acini. Confocal microscopy imaging showed that these responses were accounted for by efficient apical exocytosis at physiologic doses of both agonists and by apical blockade and redirection of exocytosis to the basolateral plasma membrane at supramaximal doses. The secretory responses and exocytotic events evoked by CCK-8 were mediated by CCK-A and not CCK-B receptors. Physiologic agonist doses evoked oscillatory Ca2+ increases across the acini. Supraphysiologic doses induced formation of cytoplasmic autophagic vacuoles and activation of proteases (trypsin, chymotrypsin). Maximal atropine pretreatment that completely blocked all the Cch-evoked responses did not affect any of the CCK-8-evoked responses, indicating that rather than acting on the nerves within the pancreas slice, CCK cellular actions directly affected human acinar cells. Human pancreas slices represent excellent preparations to examine pancreatic cell biology and pathobiology and could help screen for potential treatments for human pancreatitis.
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Affiliation(s)
- Tao Liang
- From the Department of Medicine, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Subhankar Dolai
- From the Department of Medicine, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Li Xie
- From the Department of Medicine, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Erin Winter
- Toronto General Hospital Research Institute, University Health Network, University of Toronto, Toronto M5G 2N2, Ontario, Canada
| | - Abrahim I Orabi
- Children's Hospital of Pittsburgh of UPMC, Rangos Research Center, Pittsburgh, Pennsylvania 15224, and
| | - Negar Karimian
- From the Department of Medicine, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Laura I Cosen-Binker
- From the Department of Medicine, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Ya-Chi Huang
- From the Department of Medicine, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Peter Thorn
- Charles Perkins Centre, University of Sydney, Camperdown, Sydney, New South Wales, 2050, Australia
| | - Mark S Cattral
- Toronto General Hospital Research Institute, University Health Network, University of Toronto, Toronto M5G 2N2, Ontario, Canada
| | - Herbert Y Gaisano
- From the Department of Medicine, University of Toronto, Toronto, Ontario M5S 1A8, Canada,
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45
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Peng T, Peng X, Huang M, Cui J, Zhang Y, Wu H, Wang C. Serum calcium as an indicator of persistent organ failure in acute pancreatitis. Am J Emerg Med 2017; 35:978-982. [PMID: 28291705 DOI: 10.1016/j.ajem.2017.02.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Accepted: 02/03/2017] [Indexed: 02/06/2023] Open
Abstract
AIM Decreased level of serum calcium was commonly seen in critical illness. Hypocalcemia was significantly more frequent in patients with severe form of acute pancreatitis (AP), and a negative correlation was observed between endotoxemia and serum calcium in AP. AP patients with persistent organ failure (POF) show an extremely high mortality. The association underlying calcium and POF in AP has not been characterized. METHODS We conducted a retrospective cohort study of adult patients who presented within 72hours from symptom onset of AP at our center between January 2014 and May 2015. Demographic parameters on admission, organ failure assessment, laboratory data and in-hospital mortality were compared between patients with and without POF. Uni-and multi-variate logistic regression analyses were utilized to evaluated the predictive ability of serum calcium. RESULTS A total of 128 consecutive AP patients, including 29 with POF, were included. Compared to patients without POF, patients with POF showed a significantly lower value of serum calcium on admission (2.11±0.46 vs. 1.55±0.36mmol/L, P<0.001). After multivariate logistic analysis, serum calcium remained an independent risk factor for POF (Hazard ratio 0.21, 95% confident interval: 0.08-0.58; P=0.002). A calcium value of 1.97mmol/L predicted POF with an area under the curve (AUC) of 0.888, a sensitivity with 89.7% and specificity with 74.8%, respectively. CONCLUSION Our results indicate that serum calcium on admission is independently associated with POF in AP and may serve as a potential prognostic factor.
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Affiliation(s)
- Tao Peng
- Pancreatic Disease Institute, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, People's Republic of China
| | - Xin Peng
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, People's Republic of China
| | - Min Huang
- Pancreatic Disease Institute, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, People's Republic of China
| | - Jing Cui
- Pancreatic Disease Institute, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, People's Republic of China
| | - Yushun Zhang
- Pancreatic Disease Institute, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, People's Republic of China.
| | - Heshui Wu
- Pancreatic Disease Institute, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, People's Republic of China
| | - Chunyou Wang
- Pancreatic Disease Institute, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, People's Republic of China
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Huang W, Cane MC, Mukherjee R, Szatmary P, Zhang X, Elliott V, Ouyang Y, Chvanov M, Latawiec D, Wen L, Booth DM, Haynes AC, Petersen OH, Tepikin AV, Criddle DN, Sutton R. Caffeine protects against experimental acute pancreatitis by inhibition of inositol 1,4,5-trisphosphate receptor-mediated Ca2+ release. Gut 2017; 66:301-313. [PMID: 26642860 PMCID: PMC5284483 DOI: 10.1136/gutjnl-2015-309363] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 08/31/2015] [Accepted: 09/22/2015] [Indexed: 02/05/2023]
Abstract
OBJECTIVE Caffeine reduces toxic Ca2+ signals in pancreatic acinar cells via inhibition of inositol 1,4,5-trisphosphate receptor (IP3R)-mediated signalling, but effects of other xanthines have not been evaluated, nor effects of xanthines on experimental acute pancreatitis (AP). We have determined effects of caffeine and its xanthine metabolites on pancreatic acinar IP3R-mediated Ca2+ signalling and experimental AP. DESIGN Isolated pancreatic acinar cells were exposed to secretagogues, uncaged IP3 or toxins that induce AP and effects of xanthines, non-xanthine phosphodiesterase (PDE) inhibitors and cyclic adenosine monophosphate and cyclic guanosine monophosphate (cAMP/cGMP) determined. The intracellular cytosolic calcium concentration ([Ca2+]C), mitochondrial depolarisation and necrosis were assessed by confocal microscopy. Effects of xanthines were evaluated in caerulein-induced AP (CER-AP), taurolithocholic acid 3-sulfate-induced AP (TLCS-AP) or palmitoleic acid plus ethanol-induced AP (fatty acid ethyl ester AP (FAEE-AP)). Serum xanthines were measured by liquid chromatography-mass spectrometry. RESULTS Caffeine, dimethylxanthines and non-xanthine PDE inhibitors blocked IP3-mediated Ca2+ oscillations, while monomethylxanthines had little effect. Caffeine and dimethylxanthines inhibited uncaged IP3-induced Ca2+ rises, toxin-induced Ca2+ release, mitochondrial depolarisation and necrotic cell death pathway activation; cAMP/cGMP did not inhibit toxin-induced Ca2+ rises. Caffeine significantly ameliorated CER-AP with most effect at 25 mg/kg (seven injections hourly); paraxanthine or theophylline did not. Caffeine at 25 mg/kg significantly ameliorated TLCS-AP and FAEE-AP. Mean total serum levels of dimethylxanthines and trimethylxanthines peaked at >2 mM with 25 mg/kg caffeine but at <100 µM with 25 mg/kg paraxanthine or theophylline. CONCLUSIONS Caffeine and its dimethylxanthine metabolites reduced pathological IP3R-mediated pancreatic acinar Ca2+ signals but only caffeine ameliorated experimental AP. Caffeine is a suitable starting point for medicinal chemistry.
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Affiliation(s)
- Wei Huang
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, University of Liverpool, Liverpool, UK,Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK,Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre, West China Hospital, Sichuan University, Chengdu, China
| | - Matthew C Cane
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Rajarshi Mukherjee
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, University of Liverpool, Liverpool, UK,Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Peter Szatmary
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, University of Liverpool, Liverpool, UK,Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Xiaoying Zhang
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, University of Liverpool, Liverpool, UK,Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre, West China Hospital, Sichuan University, Chengdu, China
| | - Victoria Elliott
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, University of Liverpool, Liverpool, UK
| | - Yulin Ouyang
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, University of Liverpool, Liverpool, UK,Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Michael Chvanov
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, University of Liverpool, Liverpool, UK,Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Diane Latawiec
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, University of Liverpool, Liverpool, UK
| | - Li Wen
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, University of Liverpool, Liverpool, UK,Department of Integrated Traditional Chinese and Western Medicine, Sichuan Provincial Pancreatitis Centre, West China Hospital, Sichuan University, Chengdu, China
| | - David M Booth
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Andrea C Haynes
- Immuno-Inflammation Therapeutic Area Unit, GlaxoSmithKline, Stevenage, UK
| | - Ole H Petersen
- Cardiff School of Biosciences, Cardiff University, Cardiff, UK
| | - Alexei V Tepikin
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - David N Criddle
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, University of Liverpool, Liverpool, UK,Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Robert Sutton
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, University of Liverpool, Liverpool, UK
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Desai AJ, Dong M, Harikumar KG, Miller LJ. Cholecystokinin-induced satiety, a key gut servomechanism that is affected by the membrane microenvironment of this receptor. INTERNATIONAL JOURNAL OF OBESITY SUPPLEMENTS 2016; 6:S22-S27. [PMID: 28685026 DOI: 10.1038/ijosup.2016.5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The gastrointestinal (GI) tract has a central role in nutritional homeostasis, as location for food ingestion, digestion and absorption, with the gut endocrine system responding to and regulating these events, as well as influencing appetite. One key GI hormone with the full spectrum of these activities is cholecystokinin (CCK), a peptide released from neuroendocrine I cells scattered through the proximal intestine in response to fat and protein, with effects to stimulate gall bladder contraction and pancreatic exocrine secretion, to regulate gastric emptying and intestinal transit, and to induce satiety. There has been interest in targeting the type 1 CCK receptor (CCK1R) for drug development to provide non-caloric satiation as an aid to dieting and weight loss; however, there have been concerns about CCK1R agonists related to side effects and potential trophic impact on the pancreas. A positive allosteric modulator (PAM) of CCK action at this receptor without intrinsic agonist activity could provide a safer and more effective approach to long-term administration. In addition, CCK1R stimulus-activity coupling has been shown to be negatively affected by excess membrane cholesterol, a condition described in the metabolic syndrome, thereby potentially interfering with an important servomechanism regulating appetite. A PAM targeting this receptor could also potentially correct the negative impact of cholesterol on CCK1R function. We will review the molecular basis for binding natural peptide agonist, binding and action of small molecules within the allosteric pocket, and the impact of cholesterol. Novel strategies for taking advantage of this receptor for the prevention and management of obesity will be reviewed.
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Affiliation(s)
- A J Desai
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Scottsdale, AZ, USA
| | - M Dong
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Scottsdale, AZ, USA
| | - K G Harikumar
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Scottsdale, AZ, USA
| | - L J Miller
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Scottsdale, AZ, USA
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Mukherjee R, Mareninova OA, Odinokova IV, Huang W, Murphy J, Chvanov M, Javed MA, Wen L, Booth DM, Cane MC, Awais M, Gavillet B, Pruss RM, Schaller S, Molkentin JD, Tepikin AV, Petersen OH, Pandol SJ, Gukovsky I, Criddle DN, Gukovskaya AS, Sutton R. Mechanism of mitochondrial permeability transition pore induction and damage in the pancreas: inhibition prevents acute pancreatitis by protecting production of ATP. Gut 2016; 65:1333-46. [PMID: 26071131 PMCID: PMC4920725 DOI: 10.1136/gutjnl-2014-308553] [Citation(s) in RCA: 127] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 03/16/2015] [Accepted: 04/07/2015] [Indexed: 02/05/2023]
Abstract
OBJECTIVE Acute pancreatitis is caused by toxins that induce acinar cell calcium overload, zymogen activation, cytokine release and cell death, yet is without specific drug therapy. Mitochondrial dysfunction has been implicated but the mechanism not established. DESIGN We investigated the mechanism of induction and consequences of the mitochondrial permeability transition pore (MPTP) in the pancreas using cell biological methods including confocal microscopy, patch clamp technology and multiple clinically representative disease models. Effects of genetic and pharmacological inhibition of the MPTP were examined in isolated murine and human pancreatic acinar cells, and in hyperstimulation, bile acid, alcoholic and choline-deficient, ethionine-supplemented acute pancreatitis. RESULTS MPTP opening was mediated by toxin-induced inositol trisphosphate and ryanodine receptor calcium channel release, and resulted in diminished ATP production, leading to impaired calcium clearance, defective autophagy, zymogen activation, cytokine production, phosphoglycerate mutase 5 activation and necrosis, which was prevented by intracellular ATP supplementation. When MPTP opening was inhibited genetically or pharmacologically, all biochemical, immunological and histopathological responses of acute pancreatitis in all four models were reduced or abolished. CONCLUSIONS This work demonstrates the mechanism and consequences of MPTP opening to be fundamental to multiple forms of acute pancreatitis and validates the MPTP as a drug target for this disease.
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Affiliation(s)
- Rajarshi Mukherjee
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, Liverpool, UK
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Olga A Mareninova
- Veterans Affairs Greater Los Angeles Healthcare System, University of California Los Angeles and Southern California Research Center for Alcoholic Liver and Pancreatic Diseases and Cirrhosis, Los Angeles, California, USA
| | - Irina V Odinokova
- Veterans Affairs Greater Los Angeles Healthcare System, University of California Los Angeles and Southern California Research Center for Alcoholic Liver and Pancreatic Diseases and Cirrhosis, Los Angeles, California, USA
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | - Wei Huang
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, Liverpool, UK
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK
- Department of Integrated Traditional and Western Medicine, Sichuan Provincial Pancreatitis Centre, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - John Murphy
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, Liverpool, UK
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Michael Chvanov
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, Liverpool, UK
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Muhammad A Javed
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, Liverpool, UK
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Li Wen
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, Liverpool, UK
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - David M Booth
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, Liverpool, UK
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Matthew C Cane
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Muhammad Awais
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, Liverpool, UK
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Bruno Gavillet
- Debiopharm Research and Manufacturing S.A., Lausanne, Switzerland
| | | | | | - Jeffery D Molkentin
- Howard Hughes Medical Institute, Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Alexei V Tepikin
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, Liverpool, UK
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Ole H Petersen
- Cardiff School of Biosciences, University of Cardiff, Cardiff, Wales, UK
| | - Stephen J Pandol
- Veterans Affairs Greater Los Angeles Healthcare System, University of California Los Angeles and Southern California Research Center for Alcoholic Liver and Pancreatic Diseases and Cirrhosis, Los Angeles, California, USA
| | - Ilya Gukovsky
- Veterans Affairs Greater Los Angeles Healthcare System, University of California Los Angeles and Southern California Research Center for Alcoholic Liver and Pancreatic Diseases and Cirrhosis, Los Angeles, California, USA
| | - David N Criddle
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, Liverpool, UK
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Anna S Gukovskaya
- Veterans Affairs Greater Los Angeles Healthcare System, University of California Los Angeles and Southern California Research Center for Alcoholic Liver and Pancreatic Diseases and Cirrhosis, Los Angeles, California, USA
| | - Robert Sutton
- NIHR Liverpool Pancreas Biomedical Research Unit, Royal Liverpool University Hospital, Liverpool, UK
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK
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Criddle DN. Reactive oxygen species, Ca(2+) stores and acute pancreatitis; a step closer to therapy? Cell Calcium 2016; 60:180-9. [PMID: 27229361 DOI: 10.1016/j.ceca.2016.04.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 04/22/2016] [Accepted: 04/23/2016] [Indexed: 12/18/2022]
Abstract
Disruption of Ca(2+) homeostasis can lead to severe damage of the pancreas, resulting in premature activation of digestive enzymes, vacuolisation and necrotic cell death, features typical of acute pancreatitis (AP). Therefore a fine balance between Ca(2+) release from internal stores, Ca(2+) entry and extrusion mechanisms is necessary to avoid injury. Precipitants of AP induce Ca(2+) overload of the pancreatic acinar cell that causes mitochondrial dysfunction, via formation of the mitochondrial permeability transition pore (MPTP), loss of ATP production and consequent necrosis. Oxidative stress has been shown to occur in the development of AP and may modify Ca(2+) signalling events in the acinar cell. However, the precise pathophysiological involvement is currently unclear and antioxidant therapy in the clinic has largely proved ineffective. Possible reasons for this are discussed, including evidence that ROS generation may determine cell death patterns. In contrast, recent evidence has indicated the potential for AP therapy via the prevention of Ca(2+)-dependent mitochondrial damage. Multiple approaches are indicated from preclinical findings; 1) inhibition of Ca(2+) release by IP3R blockade, 2) inhibition of Ca(2+) entry through Orai1 blockade and 3) prevention of MPTP formation. Clinical trials of drugs which prevent mitochondrial dysfunction induced by Ca(2+) overload of pancreatic acinar cells are imminent and may provide patient benefit for a disease that currently lacks specific therapy.
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Affiliation(s)
- David N Criddle
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, and NIHR Liverpool Pancreas Biomedical Research Unit, University of Liverpool, L69 3BX, UK.
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Abstract
Acute pancreatitis (AP) is an inflammatory disorder of the exocrine pancreas frequently associated with metabolic causes, contributing factors, or consequences, including hypertriglyceridemia, obesity, and disorders of intermediary metabolism, respectively. To date, there is no specific therapy for this disease. Future optimal therapy should correct both inflammatory and metabolic components of the disease. Peroxisome proliferator-activated receptors (PPARs) are lipid-sensing nuclear receptors that control inflammatory and metabolic pathways via ligand-dependent and ligand-independent mechanisms. There are 3 known subtypes, PPAR-α, PPAR-β/δ, and PPAR-γ, which are differentially expressed in various tissues. The PPARs interact closely with other transcription factors such as nuclear factor κB and signal tranducers and activators of transcription that have pivotal roles in the pathobiology of AP. In this comprehensive review, we summarize the role of PPARs in AP, highlighting important in vitro and in vivo experimental findings. Finally, we propose future research directions as well as potential translational use of PPAR agonists in the treatment of AP.
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