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Li X, Wang Y, Chen Z, Ruan M, Yang C, Zhou M, Li N, Xing L, Xu H, Yang L, Shi Q, Wang Y, Chen J, Liang Q. Hepatorenal pathologies in TNF-transgenic mouse model of rheumatoid arthritis are alleviated by anti-TNF treatment. Arthritis Res Ther 2023; 25:188. [PMID: 37784156 PMCID: PMC10544221 DOI: 10.1186/s13075-023-03178-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 09/22/2023] [Indexed: 10/04/2023] Open
Abstract
OBJECTIVE To examine and quantify liver and kidney lesions and their response to anti-tumor necrosis factor (TNF) therapy in a TNF-Tg mouse model of rheumatoid arthritis (RA). METHODS Female TNF-Tg (Tg3647) mice were used as the animal model for chronic RA. Ultrasound, immunofluorescence, histological staining, serology tests, and real-time RT-PCR were used to examine the pathological changes in the liver and kidney. RESULTS TNF-Tg mice showed a significant decrease in the body weight and a dramatic increase in the volumes of the gallbladder, knee cavity, and popliteal lymph nodes. The liver and kidneys of TNF-Tg mice showed increased chronic inflammation and accumulation of immune cells and fibrosis, compared to wild-type (WT) mice. Moreover, upregulation of inflammatory factors and impaired normal function were observed in the liver and kidneys of TNF-Tg mice. Inflammatory infiltration and fibrosis of the liver and kidneys of female TNF-Tg mice were improved after anti-TNF treatment, and better treatment effects were achieved at 4.5-month-old mice when they were received 8 weeks of intervention. CONCLUSIONS We found that TNF drives the development of liver and kidney pathology in female TNF-Tg mice and that there are limitations to the loss of utility of anti-TNF for the prolonged treatment of RA-associated hepatic and renal injury. This study provides a reliable and clinically relevant animal model for further studies exploring the molecular mechanisms and drug discovery for hepatorenal pathologies in RA.
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Affiliation(s)
- Xuefei Li
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), 1200 Cailun Road, Shanghai, 201203, China
| | - Yi Wang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
- Cardiovascular Department, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
| | - Ziqiang Chen
- Center for Systems Pharmacokinetics, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Ming Ruan
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), 1200 Cailun Road, Shanghai, 201203, China
| | - Can Yang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), 1200 Cailun Road, Shanghai, 201203, China
| | - Maolin Zhou
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
- Cardiovascular Department, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
| | - Ning Li
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), 1200 Cailun Road, Shanghai, 201203, China
| | - Lianping Xing
- Center for Musculoskeletal Research, University of Rochester Medical Center, 601 Elmwood Ave, Box 665, Rochester, NY, 14642, USA
- Department of Pathology & Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Hao Xu
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), 1200 Cailun Road, Shanghai, 201203, China
| | - Ling Yang
- Center for Systems Pharmacokinetics, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Qi Shi
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), 1200 Cailun Road, Shanghai, 201203, China
| | - Yongjun Wang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
- Spine Institute, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), 1200 Cailun Road, Shanghai, 201203, China
| | - Jinman Chen
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China.
- Spine Institute, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China.
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), 1200 Cailun Road, Shanghai, 201203, China.
| | - Qianqian Liang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China.
- Spine Institute, Shanghai University of Traditional Chinese Medicine, 725 Wan-Ping South Road, Shanghai, 200032, China.
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), 1200 Cailun Road, Shanghai, 201203, China.
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MCD Diet Rat Model Induces Alterations in Zinc and Iron during NAFLD Progression from Steatosis to Steatohepatitis. Int J Mol Sci 2022; 23:ijms23126817. [PMID: 35743260 PMCID: PMC9224179 DOI: 10.3390/ijms23126817] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/15/2022] [Accepted: 06/17/2022] [Indexed: 12/16/2022] Open
Abstract
We evaluate the effects of the methionine-choline-deficient (MCD) diet on serum and hepatic zinc (Zn) and iron (Fe) and their relationships with matrix metalloproteinases (MMPs) and their modulators (TIMPs and RECK) as well as hepatic fatty acids using male Wistar rats fed 2-, 4- and 8-week MCD diets. Serum and hepatic Zn decrease after an 8-week MCD diet. Serum Fe increases after an 8-week MCD diet and the same occurs for hepatic Fe. An increase in hepatic MMP activity, associated with a decrease in RECK and TIMPs, is found in the MCD 8-week group. Liver Fe shows a positive correlation versus MMPs and RECK, and an inverse correlation versus TIMPs. A positive correlation is found comparing liver Zn with stearic, vaccenic and arachidonic acids, and an inverse correlation is found with linolenic and docosatetraenoic acids. An opposite trend is found between liver Fe versus these fatty acids. During NAFLD progression from steatosis to steatohepatitis, MCD rats exhibit an increase in Zn and a decrease in Fe levels both in serum and tissue associated with alterations in hepatic MMPs and their inhibitors, and fatty acids. The correlations detected between Zn and Fe versus extracellular matrix modulators and fatty acids support their potential role as therapeutic targets.
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3
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Kopaliani I, Jarzebska N, Billoff S, Kolouschek A, Martens-Lobenhoffer J, Bornstein SR, Bode-Böger SM, Ragavan VN, Weiss N, Mangoni AA, Deussen A, Rodionov RN. Overexpression of dimethylarginine dimethylaminohydrolase 1 protects from angiotensin II-induced cardiac hypertrophy and vascular remodeling. Am J Physiol Heart Circ Physiol 2021; 321:H825-H838. [PMID: 34533401 DOI: 10.1152/ajpheart.00064.2021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 09/01/2021] [Indexed: 11/22/2022]
Abstract
Cardiovascular complications are the leading cause of death, and elevated levels of asymmetric dimethyarginine (ADMA), an endogenous inhibitor of nitric oxide synthase, are implicated in their pathophysiology. We investigated the role of dimethylarginine dimethylaminohydrolase 1 (DDAH1), an enzyme hydrolyzing ADMA, in prevention of cardiovascular remodeling during hypertension. We hypothesized that the animals overexpressing DDAH1 will be protected from angiotensin II (ANG II)-induced end organ damage. Angiotensin II (ANG II) was infused in two doses: 0.75 and 1.5 mg/kg/day in DDAH1 transgenic mice (DDAH1 TG) and wild-type (WT) littermates for 2 or 4 wk. Echocardiography was performed in the first and fourth weeks of the infusion, systolic blood pressure (SBP) was measured weekly, and cardiac hypertrophy and vascular remodeling was assessed by histology. Increase in SBP after 1 wk of ANG II infusion was not different between the groups, whereas TG mice had lower SBP at later time points. TG mice were protected from cardiovascular remodeling after 2 wk of ANG II infusion in the high dose and after 4 wk in the moderate dose. TG mice had higher left ventricular lumen-to-wall ratio, lower cardiomyocyte cross-sectional area, and less interstitial fibrosis compared with WT controls. In aorta, TG mice had less adventitial fibrosis, lower medial thickness with preserved elastin content, lower counts of inflammatory cells, lower levels of active matrix metalloproteinase-2, and showed better endothelium-dependent relaxation. We demonstrated that overexpression of DDAH1 protects from ANG II-induced cardiovascular remodeling and progression of hypertension by preserving endothelial function and limiting inflammation.NEW & NOTEWORTHY We showed that overexpression of dimethylarginine dimethylaminohydrolase 1 (DDAH1) protects from angiotensin II-induced cardiovascular damage, progression of hypertension, and adverse vascular remodeling in vivo. This protective effect is associated with decreased levels of asymmetric dimethylarginine, preservation of endothelial function, inhibition of cardiovascular inflammation, and lower activity of matrix metalloproteinase-2. Our findings are highly clinically relevant, because they suggest that upregulation of DDAH1 might be a promising therapeutic approach against angiotensin II-induced end organ damage.
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Affiliation(s)
- Irakli Kopaliani
- Department of Physiology, Medical Faculty, Dresden University of Technology, Dresden, Germany
| | - Natalia Jarzebska
- University Center for Vascular Medicine, Dresden University of Technology, Dresden, Germany
- Department of Anesthesiology and Critical Care Medicine, University Hospital Dresden, Dresden University of Technology, Dresden, Germany
- Department of Internal Medicine III, University Hospital Carl Gustav Carus, Dresden University of Technology, Dresden, Germany
| | - Silke Billoff
- University Center for Vascular Medicine, Dresden University of Technology, Dresden, Germany
| | - Anne Kolouschek
- University Center for Vascular Medicine, Dresden University of Technology, Dresden, Germany
| | | | - Stefan R Bornstein
- University Clinic and Polyclinic III, Dresden University of Technology, Dresden, Germany
| | - Stefanie M Bode-Böger
- Institute of Clinical Pharmacology, Otto-von-Guericke University, Magdeburg, Germany
| | - Vinitha N Ragavan
- University Center for Vascular Medicine, Dresden University of Technology, Dresden, Germany
- Department of Clinical Pharmacology, College of Medicine and Public Health, Flinders University and Flinders Medical Centre, Adelaide, South Australia, Australia
| | - Norbert Weiss
- University Center for Vascular Medicine, Dresden University of Technology, Dresden, Germany
- University Clinic and Polyclinic III, Dresden University of Technology, Dresden, Germany
| | - Arduino A Mangoni
- Department of Clinical Pharmacology, College of Medicine and Public Health, Flinders University and Flinders Medical Centre, Adelaide, South Australia, Australia
| | - Andreas Deussen
- Department of Physiology, Medical Faculty, Dresden University of Technology, Dresden, Germany
| | - Roman N Rodionov
- University Center for Vascular Medicine, Dresden University of Technology, Dresden, Germany
- University Clinic and Polyclinic III, Dresden University of Technology, Dresden, Germany
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Ferrigno A, Palladini G, Di Pasqua LG, Berardo C, Richelmi P, Cadamuro M, Fabris L, Perlini S, Adorini L, Vairetti M. Obeticholic acid reduces biliary and hepatic matrix metalloproteinases activity in rat hepatic ischemia/reperfusion injury. PLoS One 2020; 15:e0238543. [PMID: 32911524 PMCID: PMC7482919 DOI: 10.1371/journal.pone.0238543] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 08/18/2020] [Indexed: 12/12/2022] Open
Abstract
Background We have previously shown that obeticholic acid (OCA) upregulates the biliary excretion of asymmetric dimethylarginine (ADMA), an inhibitor of iNOS regulating the activity of matrix metalloproteinases (MMPs). Here, the effects of OCA on MMP-2 and MMP-9 activity in liver, bile and serum were evaluated after hepatic ischemia/reperfusion (I/R) injury. Material and methods Male Wistar rats (n = 20) were orally administered 10 mg/kg/day of OCA (5 days) and subjected to a 60-min ischemia and 60-min reperfusion. Bile, serum and tissue were collected for MMP-2 and MMP-9 activity quantification. The MMP regulator tissue reversion-inducing cysteine rich protein with Kazal motifs (RECK), tissue inhibitor of metalloproteinases (TIMPs), iNOS and biliary levels of LDH, γGT, glucose and ADMA were quantified. Results In the I/R group, OCA administration reduced MMP-2 and MMP-9 in liver, bile and serum. A downregulation of tissue RECK and TIMPs, observed under I/R, were recovered by OCA. Immunohistochemical staining of hepatic tissue demonstrated that RECK expression is mainly localized in both cholangiocytes and hepatocytes. Hepatic iNOS positively correlated with tissue MMP-2 and MMP-9 activity. Biliary levels of LDH, γGT and glucose were lower in I/R rats treated with OCA; in bile, MMP levels positively correlated with LDH and γGT. Conclusion Thus, OCA administration confers protection to cholangiocytes via downregulation of biliary MMPs in livers submitted to I/R. This event is associated with hepatic RECK- and TIMP-mediated MMP decrease.
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Affiliation(s)
- Andrea Ferrigno
- Dept. of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
- * E-mail: (MV); (AF)
| | - Giuseppina Palladini
- Dept. of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
- Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | | | - Clarissa Berardo
- Dept. of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
| | - Plinio Richelmi
- Dept. of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
| | | | - Luca Fabris
- Dept. of Molecular Medicine (DMM), University of Padua, Padua, Italy
- Department of Internal Medicine, Liver Center and Section of Digestive Diseases, Yale University, New Haven, CT, United States of America
| | - Stefano Perlini
- Dept. of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
- Emergency Department, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Luciano Adorini
- Intecept Pharmaceuticals, San Diego, CA, United States of America
| | - Mariapia Vairetti
- Dept. of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
- * E-mail: (MV); (AF)
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Transient Expression of Reck Under Hepatic Ischemia/Reperfusion Conditions Is Associated with Mapk Signaling Pathways. Biomolecules 2020; 10:biom10050747. [PMID: 32403397 PMCID: PMC7277810 DOI: 10.3390/biom10050747] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 05/04/2020] [Accepted: 05/07/2020] [Indexed: 12/14/2022] Open
Abstract
In this study, we demonstrated the involvement of matrix metalloproteinases (MMPs) in hepatic ischemia/reperfusion (I/R) injury. Our aim is to evaluate the impact of reperfusion on I/R-related changes in RECK, an MMP modulator, and mitogen-activated protein kinase (MAPKs) pathways (ERK, p38, and JNK). Male Wistar rats were either subjected to 60 min partial-hepatic ischemia or sham-operated. After a 60 min or 120 min reperfusion, liver samples were collected for analysis of MMP-2 and MMP-9 by zymography and RECK, TIMP-1, and TIMP-2 content, MAPKs activation (ERK1/2, JNK1/2, and p38), as well as iNOS and eNOS by Western blot. Serum enzymes AST, ALT, and alkaline-phosphatase were quantified. A transitory decrease in hepatic RECK and TIMPs was associated with a transitory increase in both MMP-2 and MMP-9 activity and a robust activation of ERK1/2, JNK1/2, and p38 were detected at 60 min reperfusion. Hepatic expression of iNOS was maximally upregulated at 120 min reperfusion. An increase in eNOS was detected at 120 min reperfusion. I/R evoked significant hepatic injury in a time-dependent manner. These findings provide new insights into the underlying molecular mechanisms of reperfusion in inducing hepatic injury: a transitory decrease in RECK and TIMPs and increases in both MAPK and MMP activity suggest their role as triggering factors of the organ dysfunction.
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Sládek M, Houdek P, Sumová A. Circadian profiling reveals distinct regulation of endocannabinoid system in the rat plasma, liver and adrenal glands by light-dark and feeding cycles. Biochim Biophys Acta Mol Cell Biol Lipids 2019; 1864:158533. [DOI: 10.1016/j.bbalip.2019.158533] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 09/19/2019] [Accepted: 09/25/2019] [Indexed: 12/17/2022]
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Iwasaki J, Afify M, Bleilevens C, Klinge U, Weiskirchen R, Steitz J, Vogt M, Yagi S, Nagai K, Uemoto S, Tolba RH. The Impact of a Nitric Oxide Synthase Inhibitor (L-NAME) on Ischemia⁻Reperfusion Injury of Cholestatic Livers by Pringle Maneuver and Liver Resection after Bile Duct Ligation in Rats. Int J Mol Sci 2019; 20:ijms20092114. [PMID: 31035686 PMCID: PMC6539833 DOI: 10.3390/ijms20092114] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 04/19/2019] [Accepted: 04/24/2019] [Indexed: 02/07/2023] Open
Abstract
The Pringle maneuver (PM) has been widely used to control blood loss during liver resection. However, hepatic inflow occlusion can also result in hepatic ischemia–reperfusion injury (IRI), especially in patients with a cholestatic, fibrotic, or cirrhotic liver. Here we investigate a nitric oxide synthase (NOS) inhibitor N-Nitroarginine methyl ester (L-NAME) on IRI after the PM and partial hepatectomy of cholestatic livers induced by bile duct ligation (BDL) in rats. Control group (non-BDL/no treatment), BDL + T group (BDL/L-NAME treatment) and BDL group (BDL/no treatment) were analyzed. Cholestasis was induced by BDL in the L-NAME and BDL group and a 50% partial hepatectomy with PM was performed. L-NAME was injected before PM in the BDL + T group. Hepatocellular damage, portal venous flow, microcirculation, endothelial lining, and eNOS, iNOS, interleukin (IL)-6, and transforming growth factor-β (TGF-β) were evaluated. Microcirculation of the liver in the BDL + T group tended to be higher. Liver damage and apoptotic index were significantly lower and Ki-67 labeling index was higher in the BDL + T group while iNOS and TGF-β expression was decreased. This was corroborated by a better preserved endothelial lining. L-NAME attenuated IRI following PM and improved proliferation/regeneration of cholestatic livers. These positive effects were considered as the result of improved hepatic microcirculation, prevention of iNOS formation, and TGF-β mRNA upregulation.
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Affiliation(s)
- Junji Iwasaki
- Institute for Laboratory Animal Science and Experimental Surgery, RWTH-Aachen University, Medical Faculty, 52074 Aachen, Germany.
- Two Photon Imaging Facility of the Interdisciplinary Center for Clinical Research (IZKF), RWTH-Aachen University, Medical Faculty, 52074 Aachen, Germany.
| | - Mamdouh Afify
- Institute for Laboratory Animal Science and Experimental Surgery, RWTH-Aachen University, Medical Faculty, 52074 Aachen, Germany.
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza Square 12211, Egypt.
| | - Christian Bleilevens
- Department of Anesthesiology, RWTH-Aachen University, Medical Faculty, 52074 Aachen, Germany.
| | - Uwe Klinge
- Department of General, Visceral and Transplantation Surgery, RWTH-Aachen University, Medical Faculty, 52074 Aachen, Germany.
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry, RWTH-Aachen University, Medical Faculty, 52074 Aachen, Germany.
| | - Julia Steitz
- Institute for Laboratory Animal Science and Experimental Surgery, RWTH-Aachen University, Medical Faculty, 52074 Aachen, Germany.
| | - Michael Vogt
- Institute for Laboratory Animal Science and Experimental Surgery, RWTH-Aachen University, Medical Faculty, 52074 Aachen, Germany.
- Two Photon Imaging Facility of the Interdisciplinary Center for Clinical Research (IZKF), RWTH-Aachen University, Medical Faculty, 52074 Aachen, Germany.
| | - Shintaro Yagi
- Division of Hepatobiliary Pancreatic and Transplant Surgery, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan.
| | - Kazuyuki Nagai
- Division of Hepatobiliary Pancreatic and Transplant Surgery, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan.
| | - Shinji Uemoto
- Division of Hepatobiliary Pancreatic and Transplant Surgery, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan.
| | - Rene H Tolba
- Institute for Laboratory Animal Science and Experimental Surgery, RWTH-Aachen University, Medical Faculty, 52074 Aachen, Germany.
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Nguyen L, Sandoval J, De Dios R, Yihdego E, Zarate M, Castro O, McKenna S, Wright CJ. The hepatic innate immune response is lobe-specific in a murine model endotoxemia. Innate Immun 2019; 25:144-154. [PMID: 30774009 PMCID: PMC6784545 DOI: 10.1177/1753425918823900] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The liver plays a central role in the innate immune response to endotoxemia.
While previous studies have demonstrated lobe-specific transcriptional responses
to various insults, whether this is true in response to endotoxemia is unknown.
We sought to assess whether there were significant intra- and inter-lobe
differences in the murine hepatic innate immune transcriptional response to
endotoxemia. Adult male ICR mice were exposed to i.p. LPS (5 mg/kg, 30 min,
60 min, 5 h) and primary (Tnf, Cxcl1, Nfkbia, Tnfiap3) and
secondary (Il6, Nos2) innate immune response gene expression
was assessed in the left medial, right medial, left lateral, and right lateral
lobes, and the papillary and caudate processes. The expression of all innate
immune response genes increased following i.p. LPS challenge. When tested at the
early time points (30 and 60 min), the left medial lobe and caudate process
consistently demonstrated the highest induction of gene expression. Most
inter-lobe differences were attenuated at later time points (5 h). To improve
reproducibility of the study of endotoxemia induced by i.p. LPS challenge,
inclusion of appropriate methodological details regarding collection of hepatic
tissue should be included when reporting scientific results in published
manuscripts.
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Affiliation(s)
- Leanna Nguyen
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, USA
| | - Jeryl Sandoval
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, USA
| | - Robyn De Dios
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, USA
| | - Elesa Yihdego
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, USA
| | - Miguel Zarate
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, USA
| | - Odalis Castro
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, USA
| | - Sarah McKenna
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, USA
| | - Clyde J Wright
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, USA
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Animal Models of Steatosis (NAFLD) and Steatohepatitis (NASH) Exhibit Hepatic Lobe-Specific Gelatinases Activity and Oxidative Stress. Can J Gastroenterol Hepatol 2019; 2019:5413461. [PMID: 30854350 PMCID: PMC6378039 DOI: 10.1155/2019/5413461] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 01/13/2019] [Indexed: 12/22/2022] Open
Abstract
Animal models of obstructive cholestasis and ischemia/reperfusion damage have revealed the functional heterogeneity of liver lobes. This study evaluates this heterogeneity in nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH) rat models. Twelve-week-old Obese and Lean male Zucker rats were used for NAFLD. Eight-week-old male Wistar rats fed with 8-week methionine-choline-deficient (MCD) diet and relative control diet were used for NASH. Gelatinase (MMP-2; MMP-9) activity and protein levels, tissue inhibitors of metalloproteinase (TIMPs), reactive oxygen species (ROS), and thiobarbituric acid-reactive substances (TBARS) were evaluated in the left (LL), median (ML), and right liver (RL) lobes. Serum hepatic enzymes and TNF-alpha were assessed. An increase in gelatinase activity in the NASH model occurred in RL compared with ML. TIMP-1 and TIMP-2 displayed the same trend in RL as ML and LL. Control diet RL showed higher MMP-9 activity compared with ML and LL. No significant lobar differences in MMP-2 activity were detected in the NAFLD model. MMP-9 activity was not detectable in Zucker rats. TIMP-1 was lower in LL when compared with ML while no lobar differences were detectable for TIMP-2 in either Obese or Lean Zucker rats. Control diet rats exhibited higher ROS formation in LL versus RL. Significant increases in TBARS levels were observed in LL versus ML and RL in control and MCD rats. The same trend for ROS and TBARS was found in Obese and Lean Zucker rats. An increased serum TNF-alpha occurred in MCD rats. A lobar difference was detected for MMPs, TIMPs, ROS, and TBARS in both MCD and Zucker rats. Higher MMP activation in RL and higher oxidative stress in the LL, compared with the other lobes studied, supports growing evidence for functional heterogeneity among the liver lobes occurring certainly in both NAFLD and NASH rats.
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Serum and Hepatic Autofluorescence as a Real-Time Diagnostic Tool for Early Cholestasis Assessment. Int J Mol Sci 2018; 19:ijms19092634. [PMID: 30189659 PMCID: PMC6165295 DOI: 10.3390/ijms19092634] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 08/17/2018] [Accepted: 09/04/2018] [Indexed: 12/19/2022] Open
Abstract
While it is well established that various factors can impair the production and flow of bile and lead to cholestatic disease in hepatic and extrahepatic sites, an enhanced assessment of the biomarkers of the underlying pathophysiological mechanisms is still needed to improve early diagnosis and therapeutic strategies. Hence, we investigated fluorescing endogenous biomolecules as possible intrinsic biomarkers of molecular and cellular changes in cholestasis. Spectroscopic autofluorescence (AF) analysis was performed using a fiber optic probe (366 nm excitation), under living conditions and in serum, on the livers of male Wistar rats submitted to bile duct ligation (BDL, 24, 48, and 72 h). Biomarkers of liver injury were assayed biochemically. In the serum, AF analysis distinctly detected increased bilirubin at 24 h BDL. A continuous, significant increase in red-fluorescing porphyrin derivatives indicated the subversion of heme metabolism, consistent with an almost twofold increase in the serum iron at 72 h BDL. In the liver, changes in the AF of NAD(P)H and flavins, as well as lipopigments, indicated the impairment of mitochondrial functionality, oxidative stress, and the accumulation of oxidative products. A serum/hepatic AF profile can be thus proposed as a supportive diagnostic tool for the in situ, real-time study of bio-metabolic alterations in bile duct ligation (BDL) in experimental hepatology, with the potential to eventually translate to clinical diagnosis.
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Bonacina M, Albano D, Steimberg N, Bosio G, Camoni L, Bertagna F, Giubbini R, Mazzoleni G. Different uptake of 123I-MIBG in the two main liver lobes: A persistant unsolved mistery. Rev Esp Med Nucl Imagen Mol 2018. [DOI: 10.1016/j.remnie.2018.02.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Different uptake of 123I-MIBG in the two main liver lobes: A persistant unsolved mistery. Rev Esp Med Nucl Imagen Mol 2018; 37:285-289. [PMID: 29754941 DOI: 10.1016/j.remn.2018.01.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/12/2018] [Accepted: 01/16/2018] [Indexed: 11/18/2022]
Abstract
PURPOSE After radiopharmaceutical injection, a heightened 123I-MIBG concentration is frequently observed in the left hepatic lobe compared to the right one, but the reason of this finding remains unknown. Our aim was to retrospectively analyze the different 123I-MIBG uptake pattern between the two hepatic lobes and correlate our results with some epidemiological/clinical features. MATERIAL AND METHODS Ninety-four 123I-MIBG scintigraphies from 71 patients were selected. Regions of interest were drawn in the right and left lobes using transverse tomographic sections and left to right activity ratios (L/R ratio) were calculated at 6 and 24h after radiotracer administration. RESULTS Twenty-seven examinations were positive for hypermetabolic lesions while the remaining 67 were negative. In all cases mean early and delayed L/R ratios were greater than 1.00; average early L/R ratio was 1.37 and delayed L/R ratio 1.52. The delayed L/R ratio was significantly higher than the early one. There was no difference in the L/R ratios with regard to age, gender, primary disease and result of scintigraphy. CONCLUSIONS 123I-MIBG uptake was higher in left hepatic lobe compared to right and this ratio did not correlate with any epidemiological or clinical feature. The reason of this metabolic is not yet explained and some biomolecular hypotheses could be tested in 3D dynamic in vitro models.
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Asymmetric Dimethylarginine and Hepatic Encephalopathy: Cause, Effect or Association? Neurochem Res 2016; 42:750-761. [PMID: 27885576 PMCID: PMC5357500 DOI: 10.1007/s11064-016-2111-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 09/07/2016] [Accepted: 11/15/2016] [Indexed: 12/11/2022]
Abstract
The methylated derivative of l-arginine, asymmetric dimethylarginine (ADMA) is synthesized in different mammalian tissues including the brain. ADMA acts as an endogenous, nonselective, competitive inhibitor of all three isoforms of nitric oxide synthase (NOS) and may limit l-arginine supply from the plasma to the enzyme via reducing its transport by cationic amino acid transporters. Hepatic encephalopathy (HE) is a relatively frequently diagnosed complex neuropsychiatric syndrome associated with acute or chronic liver failure, characterized by symptoms linked with impaired brain function leading to neurological disabilities. The l-arginine—nitric oxide (NO) pathway is crucially involved in the pathomechanism of HE via modulating important cerebral processes that are thought to contribute to the major HE symptoms. Specifically, activation of this pathway in acute HE leads to an increase in NO production and free radical formation, thus, contributing to astrocytic swelling and cerebral edema. Moreover, the NO-cGMP pathway seems to be involved in cerebral blood flow (CBF) regulation, altered in HE. For this reason, depressed NO-cGMP signaling accompanying chronic HE and ensuing cGMP deficit contributes to the cognitive and motor failure. However, it should be remembered that ADMA, a relatively little known element limiting NO synthesis in HE, may also influence the NO-cGMP pathway regulation. In this review, we will discuss the contribution of ADMA to the regulation of the NO-cGMP pathway in the brain, correlation of ADMA level with CBF and cognitive alterations observed during HE progression in patients and/or animal models of HE.
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Ferrigno A, Di Pasqua LG, Berardo C, Rizzo V, Richelmi P, Vairetti M. Changes in Biliary Levels of Arginine and its Methylated Derivatives after Hepatic Ischaemia/Reperfusion. Basic Clin Pharmacol Toxicol 2016; 119:101-9. [PMID: 26663642 DOI: 10.1111/bcpt.12540] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 11/24/2015] [Indexed: 12/15/2022]
Abstract
Arginine (Arg) can be methylated to form symmetrical dimethylarginine (SDMA) and asymmetrical dimethylarginine (ADMA), the latter an endogenous inhibitor of nitric oxide synthase (NOS). SDMA is excreted in the urine, while ADMA is mainly subjected to degradation in the liver. Arg competes with ADMA and SDMA for cellular transport across cationic amino-acid transporters (CATs). We evaluated the changes in serum, tissue and biliary levels of Arg, citrulline (Cit), ADMA and SDMA and the modifications in CATs after ischaemia-reperfusion (I/R). Male Wistar rats were subjected to 30-min. partial-hepatic ischaemia or sham-operated. After 60-min. reperfusion, the concentrations of ADMA, SDMA, Arg and Cit in serum, tissue and bile were measured. Serum levels of AST, ALT and alkaline phosphatase (AP) levels were determined. mRNA of cationic transporter 2A (CAT-2A) and 2B (CAT-2B) were also quantified. An increase in ADMA and a decrease in SDMA were observed in bile at the end of reperfusion. On the contrary, lower tissue ADMA levels and higher SDMA levels were quantified. No serum changes in ADMA and SDMA were found. A decrease in Arg and an increase of Cit were detected in serum, bile and tissue after I/R. A marked increase in AST, ALT and AP levels in serum confirmed I/R injury. A decrease in mRNA transporter CAT-2A but not in CAT-2B was detected. This study supported a biliary CAT-2B-dependent transport of ADMA and demonstrated, for the first time, that the liver is also responsible for the biliary excretion of SDMA into the bile.
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Affiliation(s)
- Andrea Ferrigno
- Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
| | | | - Clarissa Berardo
- Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
| | - Vittoria Rizzo
- Department of Molecular Medicine, IRCCS Policlinico San Matteo, University of Pavia, Pavia, Italy
| | - Plinio Richelmi
- Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
| | - Mariapia Vairetti
- Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
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Palladini G, Ferrigno A, Richelmi P, Perlini S, Vairetti M. Role of matrix metalloproteinases in cholestasis and hepatic ischemia/reperfusion injury: A review. World J Gastroenterol 2015; 21:12114-12124. [PMID: 26576096 PMCID: PMC4641129 DOI: 10.3748/wjg.v21.i42.12114] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 04/28/2015] [Accepted: 09/30/2015] [Indexed: 02/07/2023] Open
Abstract
Matrix metalloproteinases (MMPs) are a family of proteases using zinc-dependent catalysis to break down extracellular matrix (ECM) components, allowing cell movement and tissue reorganization. Like many other proteases, MMPs are produced as zymogens, an inactive form, which are activated after their release from cells. Hepatic ischemia/reperfusion (I/R) is associated with MMP activation and release, with profound effects on tissue integrity: their inappropriate, prolonged or excessive expression has harmful consequences for the liver. Kupffer cells and hepatic stellate cells can secrete MMPs though sinusoidal endothelial cells are a further source of MMPs. After liver transplantation, biliary complications are mainly attributable to cholangiocytes, which, compared with hepatocytes, are particularly susceptible to injury and ultimately a major cause of increased graft dysfunction and patient morbidity. This paper focuses on liver I/R injury and cholestasis and reviews factors and mechanisms involved in MMP activation together with synthetic compounds used in their regulation. In this respect, recent data have demonstrated that the role of MMPs during I/R may go beyond the mere destruction of the ECM and may be much more complex than previously thought. We thus discuss the role of MMPs as an important factor in cholestasis associated with I/R injury.
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Ferrigno A, Di Pasqua LG, Berardo C, Richelmi P, Vairetti M. Liver plays a central role in asymmetric dimethylarginine-mediated organ injury. World J Gastroenterol 2015; 21:5131-5137. [PMID: 25954086 PMCID: PMC4419053 DOI: 10.3748/wjg.v21.i17.5131] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 02/24/2015] [Accepted: 03/31/2015] [Indexed: 02/06/2023] Open
Abstract
Asymmetric-dimethylarginine (ADMA) competes with L-arginine for each of the three isoforms of nitric oxide synthase: endothelial; neuronal; inducible. ADMA is synthesized by protein methyltransferases followed by proteolytic degradation. ADMA is metabolized to citrulline and dimethylamine, by dimethylarginine dimethylaminohydrolase (DDAH) and enters cells through cationic amino-acid transporters extensively expressed in the liver. The liver plays a crucial role in ADMA metabolism by DDAH-1 and, as has been recently demonstrated, it is also responsible for ADMA biliary excretion. A correlation has been demonstrated between plasma ADMA levels and the degree of hepatic dysfunction in patients suffering from liver diseases with varying aetiologies: plasma ADMA levels are increased in patients with liver cirrhosis, alcoholic hepatitis and acute liver failure. The mechanism by which liver dysfunction results in raised ADMA concentrations is probably due to impaired activity of DDAH due to severe inflammation, oxidative stress, and direct damage to DDAH. High plasma ADMA levels are also relevant as they are associated with the onset of multi-organ failure (MOF). Increased plasma concentration of ADMA was identified as an independent risk factor for MOF in critically-ill patients causing enhanced Intensive Care Unit mortality: a significant reduction in nitric oxide synthesis, leading to malperfusion in various organs, eventually culminating in multi organs dysfunction.
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