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Nasr HE, Hegazy AM, El-Shaer NO, El-Shafey RS, Elgendy SA, Elnoury HA, Gazzar WBE, Mohammed LA. Ameliorative effects of sildenafil against carbon tetrachloride induced hepatic fibrosis in rat model through downregulation of osteopontin gene expression. Sci Rep 2024; 14:16902. [PMID: 39043726 PMCID: PMC11266717 DOI: 10.1038/s41598-024-67305-1] [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: 06/06/2024] [Accepted: 07/10/2024] [Indexed: 07/25/2024] Open
Abstract
The liver carries out many essential tasks, such as synthesising cholesterol, controlling the body's storage of glycogen, and detoxifying metabolites, in addition to performing, and regulating homeostasis. Hepatic fibrosis is a pathological state characterized by over accumulation of extracellular matrix (ECM) including collagen fibers. Sildenafil (a selective inhibitor of type 5 phosphodiesterase) has anti-inflammatory, antioxidant and anti-apoptotic properties. It is commonly used to treat erectile dysfunction in male. The purpose of the current investigation was to evaluate sildenafil's hepatoprotective potential against liver fibrosis in rats that was caused by carbon tetrachloride (CCl4). Liver enzymes and oxidative markers as well as profibrotic genes were determined. The findings showed that sildenafil alleviates the hepatic dysfunctions caused by CCl4 by restoring normal levels of ALT, AST, and GGT as well as by restoring the antioxidant status demonstrated by increased glutathione (GSH), and catalase. In addition, a significantly down-regulated the mRNA expressions of profibrotic genes [collagen-1α, IL-1β, osteopontin (OPN), and transforming growth factor-β (TGF-β)]. Additionally, sildenafil lessens the periportal fibrosis between hepatic lobules, congestion and dilatation in the central vein, and the inflammatory cell infiltrations. As a result, it is hypothesized that sildenafil may be helpful in the management of hepatotoxicity brought on by CCl4 through suppressing OPN.
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Affiliation(s)
- Hend Elsayed Nasr
- Department of Medical Biochemistery and Molecular Biology, Faculty of Medicine, Benha University, Benha, 13518, Egypt
| | - Ahmed Medhat Hegazy
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Benha University, Moshtohor, Toukh, 13736, Qalyubia, Egypt.
| | - Noha Osama El-Shaer
- Department of Physiology, Faculty of Medicine, Benha University, Benha, 13518, Egypt
| | - Rabab Shaban El-Shafey
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Benha University, Benha, 13518, Egypt
| | - Salwa A Elgendy
- Deparment of Pharmacology, Faculty of Medicine, Benha University, Benha, 13518, Egypt
| | - Heba A Elnoury
- Deparment of Pharmacology, Faculty of Medicine, Benha University, Benha, 13518, Egypt
| | - Walaa Bayoumie El Gazzar
- Department of Medical Biochemistery and Molecular Biology, Faculty of Medicine, Benha University, Benha, 13518, Egypt
| | - Lina Abdelhady Mohammed
- Department of Medical Biochemistery and Molecular Biology, Faculty of Medicine, Benha University, Benha, 13518, Egypt
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Fastrès A, Roels E, Tutunaru AC, Bolen G, Merveille A, Day MJ, Garigliany M, Antoine N, Clercx C. Osteopontin and fibronectin in lung tissue, serum, and bronchoalveolar lavage fluid of dogs with idiopathic pulmonary fibrosis and control dogs. J Vet Intern Med 2023; 37:2468-2477. [PMID: 37853926 PMCID: PMC10658509 DOI: 10.1111/jvim.16870] [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: 05/30/2023] [Accepted: 09/08/2023] [Indexed: 10/20/2023] Open
Abstract
BACKGROUND Idiopathic pulmonary fibrosis (IPF) affects West Highland white terriers (WHWTs). Osteopontin (SPP1) and fibronectin (FN1) are associated with human IPF and are overexpressed by bronchoalveolar lavage fluid (BALF) macrophages in dogs with IPF. OBJECTIVE To investigate the value of these proteins as biomarkers of IPF. ANIMALS West Highland white terriers (WHWTs) with IPF, control WHWTs, and terriers. METHODS Cross-sectional observational study. Immunohistochemistry was used to localize SPP1 and FN1 in lung tissue. Serum and BALF SPP1 and FN1 concentrations were measured using canine ELISA kits and compared between groups. RESULTS Osteopontin stained ciliated epithelial cells, smooth muscular cells, and macrophages of all included dogs, and type-II pneumocytes and extracellular matrix of all 12 diseased WHWTs, 4/6 control WHWTs, and none of the 3 terriers. Osteopontin serum concentration was higher in diseased WHWTs (n = 22; 2.15 ng/mL [0.74-5.30]) compared with control WHWTs (n = 13; 0.63 ng/mL [0.41-1.63]; P = .005) and terriers (n = 15; 0.31 ng/mL [0.19-0.51]; P < .0001), and in control WHWTs compared with terriers (P = .005). Osteopontin BALF concentrations were higher in diseased (0.27 ng/mL [0.14-0.43]) and control WHWTs (0.25 ng/mL [0.14-0.40]), compared with terriers (0.02 ng/mL [0.01-0.08]; P < .0001 and P = .003, respectively). Fibronectin (FN1) serum concentrations were lower in diseased dogs (1.03 ng/mL [0.35-1.48]) and control WHWTs (0.61 ng/mL [0.24-0.65]) compared with terriers (2.72 ng/mL [0.15-5.21]; P < .0001 and P = .0001, respectively). There was no difference in FN1 immunostaining and FN1 BALF concentrations between groups. CONCLUSIONS Results suggest that SPP1 is involved in pathogenesis of IPF and could predispose that breed to the disease. Osteopontin serum concentration could serve as a diagnostic biomarker of IPF.
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Affiliation(s)
- Aline Fastrès
- Department of Clinical Sciences, FARAH, Faculty of Veterinary MedicineUniversity of LiègeLiègeBelgium
| | - Elodie Roels
- Department of Clinical Sciences, FARAH, Faculty of Veterinary MedicineUniversity of LiègeLiègeBelgium
| | - Alexandru C. Tutunaru
- Department of Clinical Sciences, FARAH, Faculty of Veterinary MedicineUniversity of LiègeLiègeBelgium
| | - Géraldine Bolen
- Department of Clinical Sciences, FARAH, Faculty of Veterinary MedicineUniversity of LiègeLiègeBelgium
| | - Anne‐Christine Merveille
- Department of Clinical Sciences, FARAH, Faculty of Veterinary MedicineUniversity of LiègeLiègeBelgium
| | - Michael J. Day
- School of Veterinary SciencesUniversity of BristolLangfordUnited Kingdom
| | - Mutien‐Marie Garigliany
- Department of Morphology and Pathology, FARAH, Faculty of Veterinary MedicineUniversity of LiègeLiègeBelgium
| | - Nadine Antoine
- Department of Morphology and Pathology, FARAH, Faculty of Veterinary MedicineUniversity of LiègeLiègeBelgium
| | - Cécile Clercx
- Department of Clinical Sciences, FARAH, Faculty of Veterinary MedicineUniversity of LiègeLiègeBelgium
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Huyut Z, Bakan N, Yıldırım S. Do avanafil and zaprinast exert positive effects on bone tissue via the nitric oxide/cyclic guanosine monophosphate/protein kinase-G signaling pathway in rats with ovariectomy-induced osteoporosis? BRAZ J PHARM SCI 2021. [DOI: 10.1590/s2175-97902020000418976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Melanitou E. Investigation of type 1 diabetes in NOD mice knockout for the osteopontin gene. Gene 2020; 753:144785. [PMID: 32445922 DOI: 10.1016/j.gene.2020.144785] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 05/07/2020] [Accepted: 05/15/2020] [Indexed: 01/13/2023]
Abstract
OBJECTIVE Type 1 diabetes onset is preceded by a pre-inflammatory stage leading to insulitis and followed by targeted destruction of the insulin-producing beta cells of the pancreas. Osteopontin (OPN) is a secreted phosphoprotein with cytokine properties, implicated in many physiological and pathological processes, including infection and autoimmunity. We have previously identified up-regulated osteopontin transcripts in the pancreatic lymph nodes of the NOD (Non-Obese Diabetic) mouse at the pre-diabetic stages. Investigating the underlined disease initiating mechanisms may well contribute to the development of novel preventive therapies. Our aim was to construct opn null mice in a NOD autoimmune-prone genetic background and address the pathogenic or protective role of the osteopontin molecule in the early stages of type 1 diabetes. METHODS We generated opn null mutant mice in a NOD genetic background by serial backcrossing to the existing C57BL/6 opn knockout strain. The presence of opn wild type or null alleles in the congenic lines was evaluated by PCR amplification. We used NOD opn-null mice to assess the phenotypic evolution of type 1 diabetes. The presence of OPN in the serum was evaluated by ELISA and by immunostaining on the mouse tissues. The primary gene structure of the NOD opn encoding gene and protein sequences were compared to the known alleles of other mouse strains. Evaluation of Single Nucleotide Polymorphisms (SNPs) variation between opn alleles of the opn gene is reported. RESULTS In the absence of OPN, type 1 diabetes is accelerated, suggesting a protective role of this cytokine on the insulin-producing cells of the pancreatic islets. Conversely, in the presence of the opn gene, an increase of the OPN protein in the serum of young NOD mice indicates that this molecule might be involved in the immune regulatory events taking place at early stages, prior to disease onset. Our data support that OPN acts as a positive regulator of the early islet autoimmune damage, possibly by a shift of the steady-state of T1D pathogenesis. We report that the OPN protein structure of the NOD/ShiLtJ strain corresponds to the a-type allele of the osteopontin gene. Comparative analysis of the single nucleotide polymorphisms between the a-type and b-type alleles indicates that the majority of variations are within the non-coding regions of the gene. CONCLUSIONS The construction of opn null mice in an autoimmune genetic background (NOD.B6.Cg-spp1-/-) provides important tools for the study of the implication of the OPN in type 1 diabetes, offering the possibility to address the significance of this molecule as an early marker of the disease and as a therapeutic agent in preclinical studies.
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Affiliation(s)
- Evie Melanitou
- Department of Parasites and Insect Vectors, Institut Pasteur, 25-28 rue du Dr Roux, 75724 Paris, Cedex 15, France.
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Lamort AS, Giopanou I, Psallidas I, Stathopoulos GT. Osteopontin as a Link between Inflammation and Cancer: The Thorax in the Spotlight. Cells 2019; 8:cells8080815. [PMID: 31382483 PMCID: PMC6721491 DOI: 10.3390/cells8080815] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/25/2019] [Accepted: 07/31/2019] [Indexed: 12/23/2022] Open
Abstract
The glycoprotein osteopontin (OPN) possesses multiple functions in health and disease. To this end, osteopontin has beneficial roles in wound healing, bone homeostasis, and extracellular matrix (ECM) function. On the contrary, osteopontin can be deleterious for the human body during disease. Indeed, osteopontin is a cardinal mediator of tumor-associated inflammation and facilitates metastasis. The purpose of this review is to highlight the importance of osteopontin in malignant processes, focusing on lung and pleural tumors as examples.
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Affiliation(s)
- Anne-Sophie Lamort
- Comprehensive Pneumology Center and Institute for Lung Biology and Disease, University Hospital, Ludwig-Maximilians University of Munich and Helmholtz Center Munich, Member of the German Center for Lung Research, Max-Lebsche-Platz 31, 81377 Munich, Bavaria, Germany.
| | - Ioanna Giopanou
- Laboratory for Molecular Respiratory Carcinogenesis, Department of Physiology, Faculty of Medicine, University of Patras, Biomedical Sciences Research Center, 1 Asklepiou Str., University Campus, 26504 Rio, Achaia, Greece
| | - Ioannis Psallidas
- Lungs for Living Research Centre, UCL Respiratory, University College London, London WC1E6BT, UK
| | - Georgios T Stathopoulos
- Comprehensive Pneumology Center and Institute for Lung Biology and Disease, University Hospital, Ludwig-Maximilians University of Munich and Helmholtz Center Munich, Member of the German Center for Lung Research, Max-Lebsche-Platz 31, 81377 Munich, Bavaria, Germany.
- Laboratory for Molecular Respiratory Carcinogenesis, Department of Physiology, Faculty of Medicine, University of Patras, Biomedical Sciences Research Center, 1 Asklepiou Str., University Campus, 26504 Rio, Achaia, Greece.
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Huyut Z, Bakan N, Yıldırım S, Alp HH. Effects of the Phosphodiesterase-5 (PDE-5) Inhibitors, Avanafil and Zaprinast, on Bone Remodeling and Oxidative Damage in a Rat Model of Glucocorticoid-Induced Osteoporosis. Med Sci Monit Basic Res 2018; 24:47-58. [PMID: 29557941 PMCID: PMC5865409 DOI: 10.12659/msmbr.908504] [Citation(s) in RCA: 13] [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: 12/12/2017] [Accepted: 02/08/2018] [Indexed: 01/06/2023] Open
Abstract
Background The aim of this study was to evaluate the effects of the phosphodiesterase-5 (PDE-5) inhibitors, zaprinast and avanafil, on NO signalling pathway, bone mineral density (BMD), epiphyseal bone width, bone marrow angiogenesis, and parameters of oxidative stress in a rat model of glucocorticoid-induced osteoporosis (GIOP). Material/Methods Twenty-four 8-month-old male rats in four groups were given a single daily treatment during a 30-day period: an (untreated) control group (n=6): a dexamethasone-treated group (120 μ/kg) (n=6); a group treated with dexamethasone (120 μ/kg) and zaprinast (10 mg/kg) (n=6): and a group treated with dexamethasone (120 μ/kg) and avanafil (10 mg/kg) (n=6). Rat whole body bone mineral density (BMD) was measured by dual-energy X-ray absorptiometry (DEXA), and bone histology was performed. Also, selected oxidative stress parameters by HPLC method and the other biochemical parameters by ELISA method were measured. Results The GIOP model rats treated with zaprinast and avanafil showed a significant increase in NO, cyclic guanosine monophosphate (cGMP), and protein kinase G (PKG) (NO/cGMP/PKG) signaling-pathway components, and in C-terminal telopeptide of type I collagen (CTX-1), bone marrow angiogenesis, BMD, and epiphyseal bone width, compared with the (untreated) control rats (p<0.05). Levels of pyridinoline (PD) and deoxypyridinoline (DPD) were significantly reduced in the dexamethasone + zaprinast, and dexamethasone + avanafil treatment groups (p<0.05). Malondialdehyde (MDA), ubiquinone-10 (CoQ10), ubiquinol CoQ10 (CoQ10H), and 8-hydroxy-2′-deoxyguanosine (8-OHdG) were significantly increased in the dexamethasone-treated group, compared with the (untreated) controls (p<0.05). Conclusions In the GIOP rat model, markers of oxidative stress and bone atrophy were significantly reduced by treatment with the PDE-5 inhibitors, zaprinast and avanafil.
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Affiliation(s)
- Zübeyir Huyut
- Department of Biochemistry, Medical Faculty, Yuzuncu Yıl University, Van, Turkey
| | - Nuri Bakan
- Department of Biochemistry, Medical Faculty, Ataturk University, Erzurum, Turkey
| | - Serkan Yıldırım
- Department of Pathology, Faculty of Veterinary, Atatürk University, Erzurum, Turkey
| | - Hamit Hakan Alp
- Department of Biochemistry, Medical Faculty, Yuzuncu Yıl University, Van, Turkey
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