1
|
Abdel-Bakky MS, Helal GK, El-Sayed EM, Saad AS. Carbon tetrachloride-induced liver injury in mice is tissue factor dependent. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2015; 39:1199-1205. [PMID: 25982951 DOI: 10.1016/j.etap.2015.02.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Revised: 02/17/2015] [Accepted: 02/19/2015] [Indexed: 06/04/2023]
Abstract
Tissue factor (TF) is a membranous glycoprotein that activates the coagulation system when blood vessels or tissues are damaged. TF was up-regulated in monocrotaline (MCT)/lipopolysaccharide (LPS) hepatotoxicity model. The present study aimed to test the hypothesis that TF-dependent fibrin deposition occurs in liver toxicity induced by CCl4 in mice. Pericentral deposition of TF and fibrin is induced after CCl4-induced liver toxicity. The toxicity was evaluated by determination of serum activities of ALT, AST and ALP as well as GSH content and histopathological changes. The results showed that injection of mice with TF-antisense deoxyoligonucleotide (TF-AS) prevented the accumulation of TF and fibrin in the hepatic tissues. Furthermore, it significantly restored blood biochemical parameters, GSH content and distorted histopathological features caused by CCl4. The current study demonstrates that TF activation is associated with CCl4-induced liver injury. Furthermore, administration of TF-AS successfully prevented this type of liver injury.
Collapse
Affiliation(s)
- M S Abdel-Bakky
- Faculty of pharmacy, Al-Azhar university, Cairo 11884 Egypt; Faculty of pharmacy, Aljouf university, Aljouf, Saudi Arabia
| | - G K Helal
- Faculty of pharmacy, Al-Azhar university, Cairo 11884 Egypt; Faculty of pharmacy, Nahda university, Bani Suef, Egypt
| | - E M El-Sayed
- Faculty of pharmacy, Al-Azhar university, Cairo 11884 Egypt
| | - A S Saad
- Faculty of Pharmacy, Delta University for Science and Technology, Mansoura, Egypt.
| |
Collapse
|
2
|
Hammad MA, Abdel-Bakky MS, Walker LA, Ashfaq MK. Tissue factor antisense deoxyoligonucleotide prevents monocrotaline/LPS hepatotoxicity in mice. J Appl Toxicol 2012; 33:774-83. [PMID: 22407844 DOI: 10.1002/jat.2728] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Revised: 12/29/2011] [Accepted: 12/30/2011] [Indexed: 01/23/2023]
Abstract
Tissue factor (TF) is a membranous glycoprotein that functions as a receptor for coagulation factor VII/VIIa and activates the coagulation system when blood vessels or tissues are damaged. TF was upregulated in our monocrotaline (MCT)/lipopolysaccharide (LPS) hepatotoxicity model. We tested the hypothesis that TF-dependent fibrin deposition and lipid peroxidation in the form of oxidized low-density-lipoprotein (ox-LDL) accumulation contribute to liver inflammation induced by MCT/LPS in mice. In the present study, we blocked TF using antisense oligodeoxynucleotides against mouse TF (TF-ASO). TF-ASO (5.6 mg kg(-1) ) was given i.v. to ND4 male mice 30 min after administration of MCT (200 mg kg(-1) ) p.o. followed after 3.5 h by LPS i.p. (6 mg kg(-1) ). Blood alanine aminotransferase (ALT), TF, ox-LDL, platelets, hematocrit and keratinocyte-derived chemokine (KC) levels were evaluated in different treatment groups. Fibrin deposition and ox-LDL accumulation were also analyzed in the liver sections using immunofluorescent staining. The results showed that TF-ASO significantly restored blood ALT, hematocrit and KC levels, distorted after MCT/LPS co-treatment, as well as preventing the accumulation of ox-LDL and the deposition of fibrin in the liver tissues, and thereby inhibited liver injury caused by MCT/LPS. In a separate experiment, TF-ASO administration significantly prolonged animal survival. The current study demonstrates that TF is associated with MCT/LPS-induced liver injury. Administration of TF-ASO successfully prevented this type of liver injury.
Collapse
Affiliation(s)
- Mohamed A Hammad
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | | | | | | |
Collapse
|
4
|
Luyendyk JP, Cantor GH, Kirchhofer D, Mackman N, Copple BL, Wang R. Tissue factor-dependent coagulation contributes to alpha-naphthylisothiocyanate-induced cholestatic liver injury in mice. Am J Physiol Gastrointest Liver Physiol 2009; 296:G840-9. [PMID: 19179621 PMCID: PMC2670671 DOI: 10.1152/ajpgi.90639.2008] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Separation of concentrated bile acids from hepatic parenchymal cells is a key function of the bile duct epithelial cells (BDECs) that form intrahepatic bile ducts. Using coimmunostaining, we found that tissue factor (TF), the principal activator of coagulation, colocalized with cytokeratin 19, a marker of BDECs in the adult mouse liver. BDEC injury induced by xenobiotics such as alpha-naphthylisothiocyanate (ANIT) causes cholestasis, inflammation, and hepatocellular injury. We tested the hypothesis that acute ANIT-induced cholestatic hepatitis is associated with TF-dependent activation of coagulation and determined the role of TF in ANIT hepatotoxicity. Treatment of mice with ANIT (60 mg/kg) caused multifocal hepatic necrosis and significantly increased serum biomarkers of cholestasis and hepatic parenchymal cell injury. ANIT treatment also significantly increased liver TF expression and activity. ANIT-induced activation of the coagulation cascade was shown by increased plasma thrombin-antithrombin levels and significant deposition of fibrin within the necrotic foci. ANIT-induced coagulation and liver injury were reduced in low-TF mice, which express 1% of normal TF levels. The results indicate that ANIT-induced liver injury is accompanied by TF-dependent activation of the coagulation cascade and that TF contributes to the progression of injury during acute cholestatic hepatitis.
Collapse
Affiliation(s)
- James P. Luyendyk
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, Kansas; Discovery Toxicology, Bristol-Myers Squibb, Princeton, New Jersey; Department of Protein Engineering, Genentech, South San Francisco, California; and Division of Hematology/Oncology, Department of Medicine, University of North Carolina, Chapel Hill, North Carolina
| | - Glenn H. Cantor
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, Kansas; Discovery Toxicology, Bristol-Myers Squibb, Princeton, New Jersey; Department of Protein Engineering, Genentech, South San Francisco, California; and Division of Hematology/Oncology, Department of Medicine, University of North Carolina, Chapel Hill, North Carolina
| | - Daniel Kirchhofer
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, Kansas; Discovery Toxicology, Bristol-Myers Squibb, Princeton, New Jersey; Department of Protein Engineering, Genentech, South San Francisco, California; and Division of Hematology/Oncology, Department of Medicine, University of North Carolina, Chapel Hill, North Carolina
| | - Nigel Mackman
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, Kansas; Discovery Toxicology, Bristol-Myers Squibb, Princeton, New Jersey; Department of Protein Engineering, Genentech, South San Francisco, California; and Division of Hematology/Oncology, Department of Medicine, University of North Carolina, Chapel Hill, North Carolina
| | - Bryan L. Copple
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, Kansas; Discovery Toxicology, Bristol-Myers Squibb, Princeton, New Jersey; Department of Protein Engineering, Genentech, South San Francisco, California; and Division of Hematology/Oncology, Department of Medicine, University of North Carolina, Chapel Hill, North Carolina
| | - Ruipeng Wang
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, Kansas; Discovery Toxicology, Bristol-Myers Squibb, Princeton, New Jersey; Department of Protein Engineering, Genentech, South San Francisco, California; and Division of Hematology/Oncology, Department of Medicine, University of North Carolina, Chapel Hill, North Carolina
| |
Collapse
|
5
|
Redecha P, Tilley R, Tencati M, Salmon JE, Kirchhofer D, Mackman N, Girardi G. Tissue factor: a link between C5a and neutrophil activation in antiphospholipid antibody induced fetal injury. Blood 2007; 110:2423-31. [PMID: 17536017 PMCID: PMC1988945 DOI: 10.1182/blood-2007-01-070631] [Citation(s) in RCA: 211] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2007] [Accepted: 05/24/2007] [Indexed: 11/20/2022] Open
Abstract
Fetal loss in patients with antiphospholipid (aPL) antibodies has been ascribed to thrombosis of placental vessels. However, we have shown that inflammation, specifically activation of complement with generation of the anaphylotoxin C5a, is an essential trigger of fetal injury. In this study, we analyzed the role of the procoagulant molecule tissue factor (TF) in a mouse model of aPL antibody-induced pregnancy loss. We found that either blockade of TF with a monoclonal antibody in wild-type mice or a genetic reduction of TF prevented aPL antibody-induced inflammation and pregnancy loss. In response to aPL antibody-generated C5a, neutrophils express TF potentiating inflammation in the deciduas and leading to miscarriages. Importantly, we showed that TF in myeloid cells but not fetal-derived cells (trophoblasts) was associated with fetal injury, suggesting that the site for pathologic TF expression is neutrophils. We found that TF expression in neutrophils contributes to respiratory burst and subsequent trophoblast injury and pregnancy loss induced by aPL antibodies. The identification of TF as an important mediator of C5a-induced oxidative burst in neutrophils in aPL-induced fetal injury provides a new target for therapy to prevent pregnancy loss in the antiphospholipid syndrome.
Collapse
Affiliation(s)
- Patricia Redecha
- Hospital for Special Surgery, Department of Medicine, Weill Medical College of Cornell University, New York, NY 10021, USA
| | | | | | | | | | | | | |
Collapse
|