1
|
Walter FR, Harazin A, Tóth AE, Veszelka S, Santa-Maria AR, Barna L, Kincses A, Biczó G, Balla Z, Kui B, Maléth J, Cervenak L, Tubak V, Kittel Á, Rakonczay Z, Deli MA. Blood-brain barrier dysfunction in L-ornithine induced acute pancreatitis in rats and the direct effect of L-ornithine on cultured brain endothelial cells. Fluids Barriers CNS 2022; 19:16. [PMID: 35177109 PMCID: PMC8851707 DOI: 10.1186/s12987-022-00308-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 01/18/2022] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND In severe acute pancreatitis (AP) the CNS is affected manifesting in neurological symptoms. Earlier research from our laboratory showed blood-brain barrier (BBB) permeability elevation in a taurocholate-induced AP model. Here we aimed to further explore BBB changes in AP using a different, non-invasive in vivo model induced by L-ornithine. Our goal was also to identify whether L-ornithine, a cationic amino acid, has a direct effect on brain endothelial cells in vitro contributing to the observed BBB changes. METHODS AP was induced in rats by the intraperitoneal administration of L-ornithine-HCl. Vessel permeability and the gene expression of the primary transporter of L-ornithine, cationic amino acid transporter-1 (Cat-1) in the brain cortex, pancreas, liver and lung were determined. Ultrastructural changes were followed by transmission electron microscopy. The direct effect of L-ornithine was tested on primary rat brain endothelial cells and a triple co-culture model of the BBB. Viability and barrier integrity, including permeability and TEER, nitrogen monoxide (NO) and reactive oxygen species (ROS) production and NF-κB translocation were measured. Fluorescent staining for claudin-5, occludin, ZO-1, β-catenin, cell adhesion molecules Icam-1 and Vcam-1 and mitochondria was performed. Cell surface charge was measured by laser Doppler velocimetry. RESULTS In the L-ornithine-induced AP model vessel permeability for fluorescein and Cat-1 expression levels were elevated in the brain cortex and pancreas. On the ultrastructural level surface glycocalyx and mitochondrial damage, tight junction and basal membrane alterations, and glial edema were observed. L-ornithine decreased cell impedance and elevated the BBB model permeability in vitro. Discontinuity in the surface glycocalyx labeling and immunostaining of junctional proteins, cytoplasmic redistribution of ZO-1 and β-catenin, and elevation of Vcam-1 expression were measured. ROS production was increased and mitochondrial network was damaged without NF-κB, NO production or mitochondrial membrane potential alterations. Similar ultrastructural changes were seen in L-ornithine treated brain endothelial cells as in vivo. The basal negative zeta potential of brain endothelial cells became more positive after L-ornithine treatment. CONCLUSION We demonstrated BBB damage in the L-ornithine-induced rat AP model suggesting a general, AP model independent effect. L-ornithine induced oxidative stress, decreased barrier integrity and altered BBB morphology in a culture BBB model. These data suggest a direct effect of the cationic L-ornithine on brain endothelium. Endothelial surface glycocalyx injury was revealed both in vivo and in vitro, as an additional novel component of the BBB-related pathological changes in AP.
Collapse
Affiliation(s)
- Fruzsina R Walter
- Institute of Biophysics, Biological Research Centre, Temesvári krt. 62, Szeged, 6726, Hungary
| | - András Harazin
- Institute of Biophysics, Biological Research Centre, Temesvári krt. 62, Szeged, 6726, Hungary
- Department of Biomedicine, Faculty of Health, Aarhus University, Høegh-Guldbergs Gade 10, 8000, Aarhus C, Denmark
| | - Andrea E Tóth
- Institute of Biophysics, Biological Research Centre, Temesvári krt. 62, Szeged, 6726, Hungary
- Department of Biomedicine, Faculty of Health, Aarhus University, Høegh-Guldbergs Gade 10, 8000, Aarhus C, Denmark
| | - Szilvia Veszelka
- Institute of Biophysics, Biological Research Centre, Temesvári krt. 62, Szeged, 6726, Hungary
| | - Ana R Santa-Maria
- Institute of Biophysics, Biological Research Centre, Temesvári krt. 62, Szeged, 6726, Hungary
- Wyss Institute for Biologically Inspired Engineering at Harvard University, 3 Blackfan Circle, Boston, MA, 02115, USA
| | - Lilla Barna
- Institute of Biophysics, Biological Research Centre, Temesvári krt. 62, Szeged, 6726, Hungary
| | - András Kincses
- Institute of Biophysics, Biological Research Centre, Temesvári krt. 62, Szeged, 6726, Hungary
| | - György Biczó
- Department of Medicine, University of Szeged, Kálvária sgt 57, Szeged, 6725, Hungary
| | - Zsolt Balla
- Department of Medicine, University of Szeged, Kálvária sgt 57, Szeged, 6725, Hungary
- Institute of Applied Sciences, Department of Environmental Biology and Education, Juhász Gyula Faculty of Education, University of Szeged, Boldogasszony sgt. 6, Szeged, 6725, Hungary
| | - Balázs Kui
- Department of Medicine, University of Szeged, Kálvária sgt 57, Szeged, 6725, Hungary
| | - József Maléth
- Department of Medicine, University of Szeged, Kálvária sgt 57, Szeged, 6725, Hungary
- HAS-USZ Momentum Epithelial Cell Signaling and Secretion Research Group, University of Szeged, Dóm sqr. 10, Szeged, 6720, Hungary
- HCEMM-SZTE Molecular Gastroenterology Research Group, University of Szeged, Dóm sqr. 10, Szeged, 6720, Hungary
| | - László Cervenak
- Department of Internal Medicine and Hematology, Research Laboratory, Semmelweis University, Üllői út 26, Budapest, 1085, Hungary
| | - Vilmos Tubak
- Creative Laboratory Ltd, Temesvári krt. 62, Szeged, 6726, Hungary
| | - Ágnes Kittel
- Institute of Experimental Medicine, Eötvös Loránd Research Network, Szigony u. 43, Budapest, 1083, Hungary
| | - Zoltán Rakonczay
- Department of Medicine, University of Szeged, Kálvária sgt 57, Szeged, 6725, Hungary
- Department of Pathophysiology, University of Szeged, Semmelweis u. 1, Szeged, 6701, Hungary
| | - Mária A Deli
- Institute of Biophysics, Biological Research Centre, Temesvári krt. 62, Szeged, 6726, Hungary.
| |
Collapse
|
2
|
Fetaud-Lapierre V, Pastor CM, Farina A, Hochstrasser DF, Frossard JL, Lescuyer P. Proteomic analysis of heat shock-induced protection in acute pancreatitis. J Proteome Res 2010; 9:5929-42. [PMID: 20815342 DOI: 10.1021/pr100695d] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Acute pancreatitis is an inflammatory disease of the pancreas, which can result in serious morbidity or death. Acute pancreatitis severity can be reduced in experimental models by preconditioning animals with a short hyperthermia prior to disease induction. Heat shock proteins 27 and 70 are key effectors of this protective effect. In this study, we performed a comparative proteomic analysis using a combination of liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis and isobaric tagging to investigate changes in pancreatic proteins expression that were associated with thermal stress, both in healthy rats and in a model of caerulein-induced pancreatitis. In agreement with previous studies, we observed modulation of heat shock and inflammatory proteins expression in response to heat stress or pancreatitis induction. We also identified numerous other proteins, whose pancreatic level changed following pancreatitis induction, when acute pancreatitis severity was reduced by prior thermal stress, or in healthy rats in response to hyperthermia. Interestingly, we showed that the expression of various proteins associated with the secretory pathway was modified in the different experimental models, suggesting that modulation of this process is involved in the protective effect against pancreatic tissue damage.
Collapse
Affiliation(s)
- Vanessa Fetaud-Lapierre
- Department of Bioinformatics and Structural Biology, Geneva Faculty of Medicine, Geneva, Switzerland
| | | | | | | | | | | |
Collapse
|
5
|
Andrzejewska A, Dlugosz JW, Augustynowicz A. Effect of endothelin-1 receptor antagonists on histological and ultrastructural changes in the pancreas and trypsinogen activation in the early course of caerulein-induced acute pancreatitis in rats. World J Gastroenterol 2005; 11:1115-21. [PMID: 15754391 PMCID: PMC4250700 DOI: 10.3748/wjg.v11.i8.1115] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To assess the effect of non-selective ETA/B (LU 302872) and selective ETA (LU 302146) antagonist on pancreatic histology and ultrastructure of acinar cells in connection with trypsinogen activation in early caerulein-induced AP.
METHODS: Male Wistar rats with caerulein-induced AP, lasting 4 h, were treated i.p. with 10 and 20 mg/kg b.w. of each antagonist. Edema, inflammatory infiltration, necrosis and vacuolization of acinar cells in the pancreas were scored at 0-3 scale. Free active trypsin (FAT), total potential trypsin (TPT) after activation with enterokinase, and index of trypsinogen activation (%FAT/TPT) were assayed in pancreatic homogenates.
RESULTS: In untreated AP, the edema, inflammatory infiltration, necrosis and vacuolization increased as compared to control healthy rats (P<0.01). None of the treatment exerted any meaningful effect on the edema and inflammatory infiltration. The selective antagonist increased slightly the necrosis score to 0.82±0.06 at higher dose (P<0.05) vs 0.58±0.06 in untreated AP. The non-selective antagonist increased slightly the vacuolization score to 2.41±0.07 at higher dose (P<0.01) vs 1.88±0.08 in untreated AP. The decrease in the number of zymogen granules, disorganization of endoplasmic reticulum, autophagosomes and cytoplasmic vacuoles were more prominent in treated AP than in untreated AP groups. %FAT/TPT in untreated AP increased about four times (18.4±3.8 vs 4.8±1.3 in control group without AP, P<0.001). Treatment of AP with both antagonists did not affect significantly augmented trypsinogen activation.
CONCLUSION: The treatment with endothelin-1 receptors (non-selective ETA/B and selective ETA) antagonists has essential effect neither on the edema and inflammatory infiltration nor on trypsinogen activation observed in the early course of caerulein-induced AP. Nevertheless a slight increase of the necrosis and vacuolization score and some of the ultrastructural data could suggest the possibility of their undesired effects in caerulein-induced AP at investigated doses.
Collapse
Affiliation(s)
- Anna Andrzejewska
- Department of Medical Pathomorphology, Medical University of Bialystok, Waszygton Str. 13, 15-269 Białystok, Poland.
| | | | | |
Collapse
|
7
|
Takács T, Rakonczay Z, Varga IS, Iványi B, Mándi Y, Boros I, Lonovics J. Comparative effects of water immersion pretreatment on three different acute pancreatitis models in rats. Biochem Cell Biol 2002; 80:241-51. [PMID: 11998831 DOI: 10.1139/o02-006] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Cells respond to stress by upregulating the synthesis of cytoprotective heat shock proteins (HSPs) and antioxidant enzymes. The aim of this study was to compare the effects of cold (CWI) or hot water immersion (HWI) stress on three different acute pancreatitis models (cholecystokinin octapeptide (CCK), sodium taurocholate (TC), and L-arginine (Arg)). We examined the levels of pancreatic HSP60, HSP72, and antioxidants after the water immersion stress. Male Wistar rats were injected with CCK, TC, or Arg at the peak level of pancreatic HSP synthesis, as determined by Western blot analysis. HWI significantly elevated HSP72 expression and CWI significantly increased HSP60 expression in the pancreas. Water immersion stress decreased the levels of pancreatic antioxidants. CWI and-HWI pretreatment ameliorated most of the examined laboratory and morphological parameters of CCK-induced pancreatitis. CWI pretreatment decreased pancreatic edema and the serum amylase level; however, the morphological damage was more severe in TC-induced acute pancreatitis. Overall, CWI and HWI pretreatment only decreased the serum cytokine concentrations in Arg-induced pancreatitis. CWI and HWI resulted in differential induction of pancreatic HSP60 and HSP72 and the depletion of antioxidants. The findings suggest the possible roles of HSP60 and (or) HSP72 (but not that of the antioxidant enzymes) in the protection against CCK- and TC-induced acute pancreatitis. Unexpectedly, CWI pretreatment was detrimental to the morphological parameters of TC-induced pancreatitis. It was demonstrated that CWI and HWI pretreatment only influenced cytokine synthesis in Arg-induced pancreatitis.
Collapse
Affiliation(s)
- Tamas Takács
- First Department of Medicine, University of Szeged, Hungary.
| | | | | | | | | | | | | |
Collapse
|
8
|
Rakonczay Z, Takács T, Iványi B, Mándi Y, Pápai G, Boros I, Varga IS, Jost K, Lonovics J. The effects of hypo- and hyperthermic pretreatment on sodium taurocholate-induced acute pancreatitis in rats. Pancreas 2002; 24:83-9. [PMID: 11741186 DOI: 10.1097/00006676-200201000-00011] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Heat shock proteins (HSPs) have indispensable functions in the synthesis, degradation, folding, transport, and translocation of intracellular proteins. HSPs are proteins that help cells to survive stress conditions by repairing damaged proteins. AIM To investigate the potential effects of HSP preinduction by cold-water (CWI) or hot-water immersion (HWI) on sodium taurocholate (TC)-induced acute pancreatitis in rats. METHODOLOGY TC was injected into the common biliopancreatic duct of the animals at the peak level of HSP synthesis, as determined by Western blot analysis. The rats were killed by exsanguination through the abdominal aorta 6 hours after the TC injection. The serum amylase activity, the IL-1, IL-6 and TNF-alpha levels, the pancreatic weight/body weight ratio, and the pancreatic contents of DNA, protein, amylase, lipase, and trypsinogen were measured, and a biopsy for histology was taken. RESULTS HWI significantly elevated HSP72 expression, whereas CWI significantly increased HSP60 expression. It was demonstrated that CWI pretreatment ameliorated the pancreatic edema and the serum amylase level increase, whereas the morphologic damage was more severe in this form of acute pancreatitis. HWI pretreatment did not have any effects on the measured parameters in TC-induced pancreatitis. CONCLUSIONS The findings suggest a possible role of HSP60, but not HSP72, in the slight protection in the early phase of this necrohemorrhagic pancreatitis model.
Collapse
Affiliation(s)
- Zoltán Rakonczay
- First Department of Medicine, University of Szeged, Szeged, Hungary.
| | | | | | | | | | | | | | | | | |
Collapse
|
9
|
Kruse P, Lasson A, Hage E. Proteases and protease inhibitors in cerulein-induced acute pancreatitis in rats. J Surg Res 1999; 85:294-300. [PMID: 10423332 DOI: 10.1006/jsre.1999.5609] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
BACKGROUND Proteases and protease inhibitors are important in acute pancreatitis (AP), although little is known about the time course in cerulein-induced AP in the rat. MATERIALS AND METHODS AP was induced by supramaximal stimulation of cerulein, 10 microgram/kg/h, and during 72 h we measured lipase, amylase, albumin, prekallikrein, factor X, alpha(1)-protease inhibitor, alpha(1)-macroglobulin, alpha(2)-antiplasmin, antithrombin III (all in plasma) and macroscopic and histologic variables. RESULTS Within 12 h an edematous pancreatitis was evident with peak values of peritoneal exudate, pancreatic wet weight ratio, and plasma amylase and lipase activities. Histologically, edema and vacuolization were prominent already after 3 and 6 h, respectively, while inflammation, necrosis, and total histological score gradually increase to reach peak levels at 48 h. Proenzymes and most plasma protease inhibitors decreased to low levels after 6-12 h followed by a gradual increase. The sequential changes over time indicate that kallikrein - kinin activation, and plasminogen activation are probably early events in cerulein-induced AP in rats. alpha(1)-Macroglobulin and alpha(1)-protease inhibitor gradually decreased during the whole study period, probably being "second line" defense inhibitors. Levels above normal were seen for alpha(2)-antiplasmin and factor X at 48 h, normalizing at 72 h. CONCLUSIONS These results suggest that protease activation and protease inhibitor consumption occur in cerulein-induced AP in the rat.
Collapse
Affiliation(s)
- P Kruse
- Department of Pharmacology, Copenhagen University Hospital, Glostrup, Denmark.
| | | | | |
Collapse
|
10
|
Miyahara T, Kawabuchi M, Goto M, Nakano I, Nada O, Nawata H. Morphological study of pancreatic endocrine in an experimental chronic pancreatitis with diabetes induced by stress and cerulein. Ultrastruct Pathol 1999; 23:171-80. [PMID: 10445284 DOI: 10.1080/019131299281671] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
The purpose of this study was to investigate the morphological changes in the islets observed in a new chronic pancreatitis model with diabetes induced by repetition of cerulein injection plus water-immersion stress in rats. The rats of this model were treated with water-immersion stress for 5 h and two intraperitoneal injections of 20 micrograms/kg body weight of cerulein once a week for 16 weeks. In the stress and cerulein group, 62% of the islets exhibited infiltration of mononucleated cells, and/or peri- and intrainsular fibrosis. On immunohistochemical study, some islets showed reduced density of the insulin immunoreactivity. The glucagon-producing cells decreased in number. With electron microscopy, various endocrine changes were observed, mainly in the B cells. The changes included scattered debris damage with reduction of secretary granules, and vesiculation of the endoplasmic reticulum. Numerous fibroblasts clustered around the islets, and proliferating collagen fibers invaded the islets. The microvascular changes consisted of bleeding and damage to the endothels. In the pancreas treated with stress alone or cerulein alone, significant endocrine damage was not observed. In conclusion, chronic repetitive treatment with stress and cerulein, together with poor islet circulation due to fibrosis and vascular changes, resulted in the endocrine cellular damage.
Collapse
Affiliation(s)
- T Miyahara
- Third Department of Internal Medicine, Faculty of Medicine, Kyushu University, Fukuoka, Japan
| | | | | | | | | | | |
Collapse
|