151
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Kaya Tektemur N, Erdem Güzel E, Gül M, Tektemur A, Özcan Yıldırım S, Kavak Balgetir M, Ozan Kocamüftüoğlu G, Yalçın T, Enver Ozan İ. The combination of N-acetylcysteine and cyclosporin A reduces acetaminophen-induced hepatotoxicity in mice. Ultrastruct Pathol 2021; 45:19-27. [PMID: 33530839 DOI: 10.1080/01913123.2020.1850964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Acetaminophen (APAP)-induced hepatotoxicity is the most common cause of acute liver failure in worldwide. N-acetyl cysteine (NAC) is used as the APAP antidote. Cyclosporin A (CsA) is suppressed mitochondrial damage by binding cyclophilin, a mitochondrial pore transport component. The study aimed to evaluate the effects of NAC, CsA, and NAC+CsA treatments on APAP-induced hepatotoxicity in mice. Mice were randomly divided into five groups (n = 6). 400 mg/kg/ip/single dose APAP, 1200 mg/kg/i.p/single dose NAC and 50 mg/kg/i.p/single dose CsA were performed. Light and electron microscopic alterations were investigated in liver samples. Levels of serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) and liver glutathione (GSH) were analyzed. 3-nitrotyrosine and cytochrome c immunoreactivities were evaluated in liver tissue. Here, we found that APAP leads to histopathological and ultrastructural changes in mice liver. Also, APAP increased cytochrome c and 3-nitrotyrosine immunopositive staining. Besides, a significant decrease in liver GSH and an increase in serum AST and ALT levels were detected in the APAP group. Interestingly, NAC+CsA treatment improved histological alterations, cytochrome c, and 3-nitrotyrosine immunoreactivities and liver GSH, serum AST/ALT levels caused by APAP. We suggest that the combination of NAC and CsA reduces acetaminophen-induced hepatotoxicity in mice.
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Affiliation(s)
- Nalan Kaya Tektemur
- Department of Histology and Embryology, Faculty of Medicine, Firat University, Elazig, Turkey
| | - Elif Erdem Güzel
- Department of Midwifery, Faculty of Health Sciences, Mardin Artuklu University, Mardin, Turkey
| | - Mehmet Gül
- Department of Histology and Embryology, Faculty of Medicine, Inonu University, Malatya, Turkey
| | - Ahmet Tektemur
- Department of Medical Biology, Faculty of Medicine, Firat University, Elazig, Turkey
| | - Sena Özcan Yıldırım
- Department of Histology and Embryology, Faculty of Medicine, Firat University, Elazig, Turkey
| | - Merve Kavak Balgetir
- Department of Histology and Embryology, Faculty of Medicine, Firat University, Elazig, Turkey
| | - Gonca Ozan Kocamüftüoğlu
- Department of Biochemistry, Faculty of Veterinary Medicine, Mehmet Akif Ersoy University, Burdur, Turkey
| | - Tuba Yalçın
- Vocational School of Health Services, Batman University, Batman, Turkey
| | - İbrahim Enver Ozan
- Department of Histology and Embryology, Faculty of Medicine, Firat University, Elazig, Turkey
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152
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Human Family 1-4 cytochrome P450 enzymes involved in the metabolic activation of xenobiotic and physiological chemicals: an update. Arch Toxicol 2021; 95:395-472. [PMID: 33459808 DOI: 10.1007/s00204-020-02971-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 12/29/2020] [Indexed: 12/17/2022]
Abstract
This is an overview of the metabolic activation of drugs, natural products, physiological compounds, and general chemicals by the catalytic activity of cytochrome P450 enzymes belonging to Families 1-4. The data were collected from > 5152 references. The total number of data entries of reactions catalyzed by P450s Families 1-4 was 7696 of which 1121 (~ 15%) were defined as bioactivation reactions of different degrees. The data were divided into groups of General Chemicals, Drugs, Natural Products, and Physiological Compounds, presented in tabular form. The metabolism and bioactivation of selected examples of each group are discussed. In most of the cases, the metabolites are directly toxic chemicals reacting with cell macromolecules, but in some cases the metabolites formed are not direct toxicants but participate as substrates in succeeding metabolic reactions (e.g., conjugation reactions), the products of which are final toxicants. We identified a high level of activation for three groups of compounds (General Chemicals, Drugs, and Natural Products) yielding activated metabolites and the generally low participation of Physiological Compounds in bioactivation reactions. In the group of General Chemicals, P450 enzymes 1A1, 1A2, and 1B1 dominate in the formation of activated metabolites. Drugs are mostly activated by the enzyme P450 3A4, and Natural Products by P450s 1A2, 2E1, and 3A4. Physiological Compounds showed no clearly dominant enzyme, but the highest numbers of activations are attributed to P450 1A, 1B1, and 3A enzymes. The results thus show, perhaps not surprisingly, that Physiological Compounds are infrequent substrates in bioactivation reactions catalyzed by P450 enzyme Families 1-4, with the exception of estrogens and arachidonic acid. The results thus provide information on the enzymes that activate specific groups of chemicals to toxic metabolites.
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153
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Nguyen NT, Akakpo JY, Weemhoff JL, Ramachandran A, Ding WX, Jaeschke H. Impaired protein adduct removal following repeat administration of subtoxic doses of acetaminophen enhances liver injury in fed mice. Arch Toxicol 2021; 95:1463-1473. [PMID: 33458793 DOI: 10.1007/s00204-021-02985-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 01/07/2021] [Indexed: 10/25/2022]
Abstract
Acetaminophen (APAP) is a widely used analgesic and is safe at therapeutic doses. However, an overdose of APAP is hepatotoxic and accidental overdoses are increasingly common due to the presence of APAP in several combination medications. Formation of protein adducts (APAP-CYS) is central to APAP-induced liver injury and their removal by autophagy is an essential adaptive response after an acute overdose. Since the typical treatment for conditions such as chronic pain involves multiple doses of APAP over time, this study investigated APAP-induced liver injury after multiple subtoxic doses and examined the role of autophagy in responding to this regimen. Fed male C57BL/6J mice were administered repeated doses (75 mg/kg and 150 mg/kg) of APAP, followed by measurement of adducts within the liver, mitochondria, and in plasma, activation of the MAP kinase JNK, and markers of liver injury. The role of autophagy was investigated by treatment of mice with the autophagy inhibitor, leupeptin. Our data show that multiple treatments at the 150 mg/kg dose of APAP resulted in protein adduct formation in the liver and mitochondria, activation of JNK, and hepatocyte cell death, which was significantly exacerbated by inhibition of autophagy. While repeated dosing with the milder 75 mg/kg dose did not cause mitochondrial protein adduct formation, JNK activation, or liver injury, autophagy inhibition resulted in hepatocyte death even at this lower dose. These data illustrate the importance of adaptive responses such as autophagy in removing protein adducts and preventing liver injury, especially in clinically relevant situations involving repeated dosing with APAP.
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Affiliation(s)
- Nga T Nguyen
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, 3901 Rainbow Blvd, MS 1018, Kansas City, KS, 66160, USA
| | - Jephte Y Akakpo
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, 3901 Rainbow Blvd, MS 1018, Kansas City, KS, 66160, USA
| | - James L Weemhoff
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, 3901 Rainbow Blvd, MS 1018, Kansas City, KS, 66160, USA
| | - Anup Ramachandran
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, 3901 Rainbow Blvd, MS 1018, Kansas City, KS, 66160, USA
| | - Wen-Xing Ding
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, 3901 Rainbow Blvd, MS 1018, Kansas City, KS, 66160, USA
| | - Hartmut Jaeschke
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, 3901 Rainbow Blvd, MS 1018, Kansas City, KS, 66160, USA.
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154
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Sreevallabhan S, Mohanan R, Jose SP, Sukumaran S, Jagmag T, Tilwani J, Kulkarni A. Hepatoprotective effect of essential phospholipids enriched with virgin coconut oil (Phoscoliv) on paracetamol-induced liver toxicity. J Food Biochem 2021; 45:e13606. [PMID: 33458835 DOI: 10.1111/jfbc.13606] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 12/18/2020] [Accepted: 12/22/2020] [Indexed: 02/01/2023]
Abstract
The prevalence of liver disease is increasing year by year and it is recognized as a main health burden across the world. Nowadays, dietary nutraceuticals are found to be very effective in the prevention and treatment of liver diseases. The virgin coconut oil and phosphatidylcholine are found to have a wide range of therapeutic efficacy and the most important among them is its hepatoprotective activity. In the present study, we had evaluated the hepatoprotective effect of the novel formulation with the combination of these two which is named as Phoscoliv. For the study, adult Wistar rats were grouped into Normal control, Paracetamol-treated, and Paracetamol along with Phoscoliv-treated group. In order to evaluate the hepatoprotective effect of the drug, various parameters were analyzed. Data obtained from the study showed that Phoscoliv supplementation were found to significantly boost up the antioxidant status by enhancing the SOD, CAT, GPx, and GSH level and thereby inhibit the generation of ROS and also blocked lipid peroxidation, which was confirmed by the reduced level of TBARS. The release of pro-inflammatory cytokines was also decreased, which was eventually helped to maintain the normal architecture of the liver. Thus, from the overall result of this study reveals that Phoscoliv can be effectively used as a potent and safe hepatoprotective medicine. PRACTICAL APPLICATIONS: The over or unwanted usage of synthetic medicine is a serious problem because it can cause so many adverse health effects. Liver-related disorders are the major side effects of these drugs. Food habits of ancient people dictate that there is no other better medicine than a good food. So, treating a disease with a food or compounds derived from a food item will be more effective. Virgin coconut oil is a type of natural and organic oil, which has the capability of maintaining the body in a healthy state. Likewise, phosphatidylcholines are very important phospholipid nutrients necessary to keep the cells healthy. Both these have the potential to protect and prevent the liver damages. Therefore, the combination of these two can exhibit profound hepatoprotective activity.
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Affiliation(s)
| | - Ratheesh Mohanan
- Department of Biochemistry, St. Thomas College, Palai, Kottayam, India
| | - Svenia P Jose
- Department of Biochemistry, St. Thomas College, Palai, Kottayam, India
| | - Sandya Sukumaran
- Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, India
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155
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Tran M, Wu J, Wang L, Shin DJ. A Potential Role for SerpinA3N in Acetaminophen-Induced Hepatotoxicity. Mol Pharmacol 2021; 99:277-285. [PMID: 33436521 DOI: 10.1124/molpharm.120.000117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 12/31/2020] [Indexed: 10/25/2022] Open
Abstract
Acetaminophen (APAP) is a commonly used pain and fever reliever but is also the most frequent cause of drug-induced liver injury. The mechanism pertaining acetaminophen toxicity has been well documented, whereas mechanisms of hepatotoxicity are not well established. Serine (or cysteine) peptidase inhibitor, clade A, member 3N (SerpinA3N), a serine protease inhibitor, is synthesized in the liver but the role of SerpinA3N in relation to APAP-induced liver injury is not known. Wild-type and hepatocyte-specific SerpinA3N knockout (HKO) mice were injected intraperitoneally with a single dose of PBS or APAP (400 mg/kg) for 12 hours, and markers of liver injury, cell death, and inflammation were assessed. SerpinA3N expression was highly induced in mice with APAP overdose. SerpinA3N HKO mice had diminished liver injury and necrosis as shown by lower alanine aminotransferase and interleukin-6 levels, accompanied by suppressed inflammatory cytokines and reduced neutrophil infiltration. The reduced oxidative stress was associated with enhanced antioxidant enzyme capabilities. Taken together, hepatocyte SerpinA3N deficiency reduced APAP-induced liver injury by ameliorating inflammation and modulating the 5' AMP-activated protein kinase-unc-51-like autophagy activating kinase 1 signaling pathway. Our study provides novel insights into a potential role for SerpinA3N in APAP-induced liver injury. SIGNIFICANCE STATEMENT: Our studies indicate that serine (or cysteine) peptidase inhibitor, clade A, member 3N (SerpinA3N) may have a pathophysiological role in modulating acetaminophen (APAP)-induced liver injury. More specifically, mice with hepatic deletion of SerpinA3N suppressed inflammation and liver injury to reduce APAP-induced hepatotoxicity. Controlling the inflammatory response offers possible approaches for novel therapeutics; therefore, understanding the pathophysiological role of SerpinA3N in inducing liver injury may add to the development of more efficacious treatments.
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Affiliation(s)
- Melanie Tran
- Department of Physiology and Neurobiology, University of Connecticut, Storrs, Connecticut (M.T., J.W., D.-J.S.) and Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, Connecticut (L.W.)
| | - Jianguo Wu
- Department of Physiology and Neurobiology, University of Connecticut, Storrs, Connecticut (M.T., J.W., D.-J.S.) and Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, Connecticut (L.W.)
| | - Li Wang
- Department of Physiology and Neurobiology, University of Connecticut, Storrs, Connecticut (M.T., J.W., D.-J.S.) and Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, Connecticut (L.W.)
| | - Dong-Ju Shin
- Department of Physiology and Neurobiology, University of Connecticut, Storrs, Connecticut (M.T., J.W., D.-J.S.) and Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, Connecticut (L.W.)
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156
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Zhao T, Zheng T, Yu H, Hu BH, Hu B, Ma P, Yang Y, Yang N, Hu J, Cao T, Chen G, Yan B, Peshoff M, Hatzoglou M, Geng R, Li B, Zheng QY. Autophagy impairment as a key feature for acetaminophen-induced ototoxicity. Cell Death Dis 2021; 12:3. [PMID: 33414397 PMCID: PMC7791066 DOI: 10.1038/s41419-020-03328-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 12/03/2020] [Accepted: 12/07/2020] [Indexed: 02/07/2023]
Abstract
Macroautophagy/autophagy is a highly conserved self-digestion pathway that plays an important role in cytoprotection under stress conditions. Autophagy is involved in hepatotoxicity induced by acetaminophen (APAP) in experimental animals and in humans. APAP also causes ototoxicity. However, the role of autophagy in APAP-induced auditory hair cell damage is unclear. In the present study, we investigated autophagy mechanisms during APAP-induced cell death in a mouse auditory cell line (HEI-OC1) and mouse cochlear explant culture. We found that the expression of LC3-II protein and autophagic structures was increased in APAP-treated HEI-OC1 cells; however, the degradation of SQSTM1/p62 protein, the yellow puncta of mRFP-GFP-LC3 fluorescence, and the activity of lysosomal enzymes decreased in APAP-treated HEI-OC1 cells. The degradation of p62 protein and the expression of lysosomal enzymes also decreased in APAP-treated mouse cochlear explants. These data indicate that APAP treatment compromises autophagic degradation and causes lysosomal dysfunction. We suggest that lysosomal dysfunction may be directly responsible for APAP-induced autophagy impairment. Treatment with antioxidant N-acetylcysteine (NAC) partially alleviated APAP-induced autophagy impairment and apoptotic cell death, suggesting the involvement of oxidative stress in APAP-induced autophagy impairment. Inhibition of autophagy by knocking down of Atg5 and Atg7 aggravated APAP-induced ER and oxidative stress and increased apoptotic cell death. This study provides a better understanding of the mechanism responsible for APAP ototoxicity, which is important for future exploration of treatment strategies for the prevention of hearing loss caused by ototoxic medications.
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Affiliation(s)
- Tong Zhao
- Hearing and Speech Rehabilitation Institute, College of Special Education, Binzhou Medical University, Yantai, China
| | - Tihua Zheng
- Hearing and Speech Rehabilitation Institute, College of Special Education, Binzhou Medical University, Yantai, China
| | - Huining Yu
- Hearing and Speech Rehabilitation Institute, College of Special Education, Binzhou Medical University, Yantai, China
| | - Bo Hua Hu
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY, USA
| | - Bing Hu
- Department of Otolaryngology, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Peng Ma
- Department of Genetics, School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Ying Yang
- Hearing and Speech Rehabilitation Institute, College of Special Education, Binzhou Medical University, Yantai, China
| | - Naidi Yang
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Nanjing Tech University, Nanjing, China
| | - Juan Hu
- Department of Otolaryngology-Head & Neck Surgery, Second Affiliated Hospital, Xi'an Jiaotong University School of Medicine, Xi'an, China
| | - Tongtao Cao
- Hearing and Speech Rehabilitation Institute, College of Special Education, Binzhou Medical University, Yantai, China
| | - Gang Chen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China
| | - Bin Yan
- Hearing and Speech Rehabilitation Institute, College of Special Education, Binzhou Medical University, Yantai, China
| | - Melina Peshoff
- Department of Otolaryngology, Case Western Reserve University, Cleveland, OH, USA
| | - Maria Hatzoglou
- Department of Genetics, Case Western Reserve University, Cleveland, OH, USA
| | - Ruishuang Geng
- Hearing and Speech Rehabilitation Institute, College of Special Education, Binzhou Medical University, Yantai, China.
| | - Bo Li
- Hearing and Speech Rehabilitation Institute, College of Special Education, Binzhou Medical University, Yantai, China.
| | - Qing Yin Zheng
- Department of Otolaryngology, Case Western Reserve University, Cleveland, OH, USA
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157
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Increased risk of acute liver failure by pain killer drugs in NAFLD: Focus on nuclear receptors and their coactivators. Dig Liver Dis 2021; 53:26-34. [PMID: 32546444 DOI: 10.1016/j.dld.2020.05.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 05/05/2020] [Accepted: 05/18/2020] [Indexed: 02/08/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a global condition characterized by an accumulation of lipids in the hepatocytes. NAFLD ranges from simple steatosis, a reversible and relatively benign condition, to fibrosis with non-alcoholic steatohepatitis (NASH), potentially leading to cirrhosis and hepatocarcinoma. NAFLD can increase the susceptibility to severe liver injury with eventual acute liver failure induced by specific hepatotoxic drugs, including acetaminophen (APAP), which is commonly used as analgesic and antipyretic. Although several animal models have been used to clarify the predisposing role of hepatic steatosis to APAP intoxication, the exact mechanism is still not clear. Here, we shed a light into the association between NAFLD and APAP toxicity by examining the peculiar role of nuclear receptor peroxisome proliferator-activated receptor α (PPARα) and coactivator peroxisome proliferator-activated receptor gamma coactivator 1-β (PGC-1β) in driving fatty acid metabolism, inflammation and mitochondria redox balance. The knowledge of the mechanism that exposes patients with NAFLD to higher risk of acute liver failure by pain killer drug is the first step to eventually claim for a reduction of the maximal diurnal dose of APAP for subjects with liver steatosis.
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158
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Jaeschke H, Murray FJ, Monnot AD, Jacobson-Kram D, Cohen SM, Hardisty JF, Atillasoy E, Hermanowski-Vosatka A, Kuffner E, Wikoff D, Chappell GA, Bandara SB, Deore M, Pitchaiyan SK, Eichenbaum G. Assessment of the biochemical pathways for acetaminophen toxicity: Implications for its carcinogenic hazard potential. Regul Toxicol Pharmacol 2021; 120:104859. [PMID: 33388367 DOI: 10.1016/j.yrtph.2020.104859] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 12/22/2020] [Accepted: 12/28/2020] [Indexed: 02/07/2023]
Abstract
In 2019 California's Office of Environmental Health Hazard Assessment (OEHHA) initiated a review of the carcinogenic hazard potential of acetaminophen. In parallel with this review, herein we evaluated the mechanistic data related to the steps and timing of cellular events following therapeutic recommended (≤4 g/day) and higher doses of acetaminophen that may cause hepatotoxicity to evaluate whether these changes indicate that acetaminophen is a carcinogenic hazard. At therapeutic recommended doses, acetaminophen forms limited amounts of N-acetyl-p-benzoquinone-imine (NAPQI) without adverse cellular effects. Following overdoses of acetaminophen, there is potential for more extensive formation of NAPQI and depletion of glutathione, which may result in mitochondrial dysfunction and DNA damage, but only at doses that result in cell death - thus making it implausible for acetaminophen to induce the kind of stable, genetic damage in the nucleus indicative of a genotoxic or carcinogenic hazard in humans. The collective data demonstrate a lack of a plausible mechanism related to carcinogenicity and are consistent with rodent cancer bioassays, epidemiological results reviewed in companion manuscripts in this issue, as well as conclusions of multiple international health authorities.
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Affiliation(s)
- Hartmut Jaeschke
- University of Kansas Medical Center, Department of Pharmacology, Toxicology & Therapeutics, Kansas City, KS, USA
| | | | | | | | - Samuel M Cohen
- University of Nebraska Medical Center, Havlik-Wall Professor of Oncology, Department of Pathology and Microbiology, Omaha, NE, USA
| | - Jerry F Hardisty
- Experimental Pathology Laboratories, Inc., Research Triangle Park, NC, USA
| | | | | | - Edwin Kuffner
- Johnson & Johnson Consumer Health, Fort Washington, PA, USA
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159
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Lin Y, Huang J, Gao T, Wu Y, Huang D, Yan F, Weng Z. Preliminary Study on Hepatoprotective Effect and Mechanism of (-)-Epigallocatechin-3-gallate against Acetaminophen-induced Liver Injury in Rats. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2021; 20:46-56. [PMID: 34903968 PMCID: PMC8653645 DOI: 10.22037/ijpr.2020.112727.13918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Antipyretic acetaminophen (APAP) is a commonly used drug that generally associates with liver injury. (-)-Epigallocatechin-3-gallate (EGCG), an active polyphenol extracted from green tea, is extensively reported to have the potential to impact a variety of human diseases. However, few studies were reported regarding the protective effect of EGCG on APAP-induced liver injury and the mechanism is still unclear. In this study, in-vitro and in-vivo experiments were carried out to verify the hepatoprotective effect of EGCG against APAP-induced liver injury and explore the potential mechanism. Results indicated that EGCG effectively relieved the liver injury caused by APAP, as well as APAP-induced mitochondrial dysfunction. The protective role of EGCG was not only attributed to its antioxidant capacity; but also might be related to the protective effect on hepatic mitochondrial impairment; based on that, EGCG could improve the membrane potential and activities of the respiratory chain complexes in liver mitochondria. Our study casts a new light on the mechanism of EGCG's hepatoprotective effect and suggests that EGCG has considerable potential in developing tonics for relieving APAP-induced liver injury.
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Affiliation(s)
- Yongxu Lin
- Department of Basic Education, Fujian Normal University, Fuzhou 350116, China. ,These authors contributed equally to this work.
| | - Juan Huang
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350116, China.,These authors contributed equally to this work.
| | - Tingfang Gao
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350116, China.
| | - Yuanzi Wu
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350116, China.
| | - Da Huang
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350116, China.
| | - Fen Yan
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350116, China.,Corresponding authors:E-mail: ;
| | - Zuquan Weng
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350116, China.,Corresponding authors:E-mail: ;
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160
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Anwar I, Ashfaq UA, Shokat Z. Therapeutic Potential of Umbilical Cord Stem Cells for Liver Regeneration. Curr Stem Cell Res Ther 2020; 15:219-232. [PMID: 32077830 DOI: 10.2174/1568026620666200220122536] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 07/16/2019] [Accepted: 08/08/2019] [Indexed: 01/18/2023]
Abstract
The liver is a vital organ for life and the only internal organ that is capable of natural regeneration. Although the liver has high regeneration capacity, excessive hepatocyte death can lead to liver failure. Various factors can lead to liver damage including drug abuse, some natural products, alcohol, hepatitis, and autoimmunity. Some models for studying liver injury are APAP-based model, Fas ligand (FasL), D-galactosamine/endotoxin (Gal/ET), Concanavalin A, and carbon tetrachloride-based models. The regeneration of the liver can be carried out using umbilical cord blood stem cells which have various advantages over other stem cell types used in liver transplantation. UCB-derived stem cells lack tumorigenicity, have karyotype stability and high immunomodulatory, low risk of graft versus host disease (GVHD), low risk of transmitting somatic mutations or viral infections, and low immunogenicity. They are readily available and their collection is safe and painless. This review focuses on recent development and modern trends in the use of umbilical cord stem cells for the regeneration of liver fibrosis.
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Affiliation(s)
- Ifrah Anwar
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad, Pakistan
| | - Usman A Ashfaq
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad, Pakistan
| | - Zeeshan Shokat
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad, Pakistan
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161
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da Silva Souza B, Sales ACS, da Silva FDS, de Souza TF, de Freitas CDT, Vasconcelos DFP, de Oliveira JS. Latex Proteins from Plumeria pudica with Therapeutic Potential on Acetaminophen-Induced Liver Injury. Mini Rev Med Chem 2020; 20:2011-2018. [DOI: 10.2174/1389557520666200821121903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 05/29/2020] [Accepted: 06/09/2020] [Indexed: 11/22/2022]
Abstract
Liver disease is global health problem. Paracetamol (APAP) is used as an analgesic drug
and is considered safe at therapeutic doses, but at higher doses, it causes acute liver injury. N-acetyl-p-
Benzoquinone Imine (NAPQI) is a reactive toxic metabolite produced by biotransformation of APAP.
NAPQI damages the liver by oxidative stress and the formation of protein adducts. The glutathione
precursor N-acetylcysteine (NAC) is the only approved antidote against APAP hepatotoxicity, but it
has limited hepatoprotective effects. The search for new drugs and novel therapeutic intervention strategies
increasingly includes testing plant extracts and other natural products. Plumeria pudica (Jacq.,
1760) is a plant that produces latex containing molecules with therapeutic potential. Proteins obtained
from this latex (LPPp), a well-defined mixture of chitinases, proteinases proteinase inhibitors have
shown anti-inflammatory, antinociceptive, antidiarrheal effects as well as a protective effect against
ulcerative colitis. These studies have demonstrated that LPPp acts on parameters such as Glutathione
(GSH) and Malondialdehyde (MDA) concentration, Superoxide Dismutase (SOD) activity, Myeloperoxidase
(MPO) activity, and TNF- α IL1-β levels. Since oxidative stress and inflammation have been
reported to affect the initiation and progression of liver injury caused by APAP, it is suggested that
LPPp can act on aspects related to paracetamol hepatoxicity. This article brings new insights into the
potential of the laticifer proteins extracted from the latex of P. pudica and opens new perspectives for
the treatment of this type of liver disease with LPPp.
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Affiliation(s)
- Bruna da Silva Souza
- Universidade Federal do Delta do Parnaiba - UFDPar, Laboratorio de Bioquimica de Plantas Laticiferas (LABPL), CEP 64.202-020, Parnaiba, Piaui, Brazil
| | - Ana Clara Silva Sales
- Universidade Federal do Delta do Parnaiba - UFDPar, Laboratorio de Bioquimica de Plantas Laticiferas (LABPL), CEP 64.202-020, Parnaiba, Piaui, Brazil
| | - Francisca Dayane Soares da Silva
- Universidade Federal do Delta do Parnaiba - UFDPar, Laboratorio de Bioquimica de Plantas Laticiferas (LABPL), CEP 64.202-020, Parnaiba, Piaui, Brazil
| | - Thalis Ferreira de Souza
- Universidade Federal do Delta do Parnaiba - UFDPar, Laboratorio de Bioquimica de Plantas Laticiferas (LABPL), CEP 64.202-020, Parnaiba, Piaui, Brazil
| | | | - Daniel Fernando Pereira Vasconcelos
- Universidade Federal do Piaui - UFPI, Programa de Doutorado em Biotecnologia - Rede Nordeste de Biotecnologia (RENORBIO), CEP 64049-550, Teresina, PI, Brazil
| | - Jefferson Soares de Oliveira
- Universidade Federal do Delta do Parnaiba - UFDPar, Laboratorio de Bioquimica de Plantas Laticiferas (LABPL), CEP 64.202-020, Parnaiba, Piaui, Brazil
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162
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Aprioku JS, Gospel P. Concurrent administration of acetaminophen and ethanol: impact on mouse liver and testis. J Basic Clin Physiol Pharmacol 2020; 32:1065-1074. [PMID: 34898134 DOI: 10.1515/jbcpp-2020-0136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 08/29/2020] [Indexed: 01/01/2023]
Abstract
OBJECTIVES Acetaminophen (paracetamol) and alcohol are widely consumed as analgesic/antipyretic and recreational agent, respectively. High doses of both agents induce liver and male reproductive toxicities. This study investigated the toxicological outcome of concurrent administration of paracetamol and ethanol in the liver and testis in mice. METHODS Animals were gavaged paracetamol (250 mg/kg), ethanol (3 g/kg) or paracetamol + ethanol for 2 d. Some groups were sacrificed 12 h after the last dose, while others were sacrificed 21 d posttreatment for reversibility study. Control group received carboxymethylcellulose sodium (0.2%). Serum levels of liver biochemical indices and epididymal sperm were analysed. Histopathological analysis of the liver and testis were also performed. RESULTS Alkaline phosphatase (ALP), aspartate aminotransferase (AST), alanine aminotransferase (ALT), and bilirubin in serum were elevated (p<0.001); whereas albumin and total protein were reduced (p<0.001) in paracetamol or ethanol groups compared to control. In the combination group, only mild elevation of ALT (p<0.05) was observed. Additionally, hepatocyte necrosis occurred in the livers of paracetamol and ethanol groups, while only mild inflammatory changes were seen in the combination group. All liver indices were normal in reversibility study animals. Furthermore, sperm count, motility, viability and morphology did not change in all treated animals, except that sperm count was decreased (p<0.05) in paracetamol group. Testis histology of all animal groups were normal. CONCLUSIONS The results demonstrated that simultaneous treatment with acute paracetamol and ethanol doses will possibly minimize hepatotoxicity and reduction of epididymal sperm reserve by the individual agents, and the toxicities are reversible.
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Affiliation(s)
- Jonah Sydney Aprioku
- Department of Experimental Pharmacology and Toxicology, Faculty of Pharmaceutical Sciences, University of Port Harcourt, Port Harcourt, Rivers, Nigeria
| | - Precious Gospel
- Department of Experimental Pharmacology and Toxicology, Faculty of Pharmaceutical Sciences, University of Port Harcourt, Port Harcourt, Rivers, Nigeria
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163
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Pressman P, Bridge WJ, Zarka MH, Hayes AW, Clemens R. Dietary γ-Glutamylcysteine: Its Impact on Glutathione Status and Potential Health Outcomes. J Diet Suppl 2020; 19:259-270. [PMID: 33307893 DOI: 10.1080/19390211.2020.1856266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Glutathione (GSH) is a tripeptide that is readily synthesized intracellularly in humans and other mammals. More than a century of research suggests that GSH has numerous biological functions, including protection from the potential adverse events associated with reactive oxygen species (ROS) and related redox reactions that may induce oxidative stress, and that may be linked to innate detoxification processes. Normal tissue and plasma levels of GSH decline through the aging process and decrease during various disease states. While the health value of dietary GSH remains controversial, there is evidence that some metabolic intermediates, such as γ-glutamylcysteine (GGC) may function to preserve adequate GSH levels when the synthetic pathways decline in activity, and the innate antioxidant system is challenged. It is also important to recognize that among the thousands of protein-coding human genes and their respective polymorphisms, at least two genes (Gclc and Gclm) are directly involved with GSH synthesis via glutamate-cysteine ligase. This commentary examines the classic biochemistry, toxicology, safety, and clinical value of GSH and its intermediates that may be modulated by dietary supplementation.
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Affiliation(s)
| | - Wallace John Bridge
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, Australia
| | - Martin Hani Zarka
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, Australia
| | - A Wallace Hayes
- College of Public Health, University of South Florida, Tampa, FL, USA
| | - Roger Clemens
- International Center for Regulatory Sciences, University of Southern California, Los Angeles, CA, USA
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164
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González-Ponce HA, Martínez-Saldaña MC, Tepper PG, Quax WJ, Buist-Homan M, Faber KN, Moshage H. Betacyanins, major components in Opuntia red-purple fruits, protect against acetaminophen-induced acute liver failure. Food Res Int 2020; 137:109461. [PMID: 33233135 DOI: 10.1016/j.foodres.2020.109461] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 04/05/2020] [Accepted: 06/16/2020] [Indexed: 01/06/2023]
Abstract
Acetaminophen (APAP) misuse or overdose is the most important cause of drug-induced acute liver failure. Overdoses of acetaminophen induce oxidative stress and liver injury by the electrophilic metabolite N-acetyl-p-benzoquinone imine (NAPQI). Plant-based medicine has been used for centuries against diseases or intoxications due to their biological activities. The aim of this study was to evaluate the therapeutic value of Opuntia robusta and Opuntia streptacantha fruit extracts against acetaminophen-induced liver damage and to identify the major biocomponents on them. Opuntia fruit extracts were obtained by peeling and squeezing each specie, followed by lyophilization. HPLC was used to characterize the extracts. The effect of the extracts against acetaminophen-induced acute liver injury was evaluated both in vivo and in vitro using biochemical, molecular and histological determinations. The results showed that betacyanins are the main components in the analyzed Opuntia fruit extracts, with betanin as the highest concentration. Therapeutic treatments with Opuntia extracts reduced biochemical, molecular and histological markers of liver (in vivo) and hepatocyte (in vitro) injury. Opuntia extracts reduced the APAP-increased expression of the stress-related gene Gadd45b. Furthermore, Opuntia extracts exerted diverse effects on the antioxidant related genes Sod2, Gclc and Hmox1, independent of their ROS-scavenging ability. Therefore, betacyanins as betanin from Opuntia robusta and Opuntia streptacantha fruits are promising nutraceutical compounds against oxidative liver damage.
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Affiliation(s)
- Herson Antonio González-Ponce
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, the Netherlands.
| | | | - Pieter G Tepper
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, the Netherlands
| | - Wim J Quax
- Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, the Netherlands
| | - Manon Buist-Homan
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, the Netherlands; Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, the Netherlands.
| | - Klaas Nico Faber
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, the Netherlands; Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, the Netherlands.
| | - Han Moshage
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, the Netherlands; Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, the Netherlands.
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165
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Acetaminophen-Induced Rat Hepatotoxicity Based on M1/M2-Macrophage Polarization, in Possible Relation to Damage-Associated Molecular Patterns and Autophagy. Int J Mol Sci 2020; 21:ijms21238998. [PMID: 33256230 PMCID: PMC7730394 DOI: 10.3390/ijms21238998] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/20/2020] [Accepted: 11/20/2020] [Indexed: 02/07/2023] Open
Abstract
Overdose of acetaminophen (APAP), an antipyretic drug, is an important cause of liver injury. However, the mechanism in the rat model remains undetermined. We analyzed APAP-induced hepatotoxicity using rats based on M1/M2-macrophage functions in relation to damage-associated molecular patterns (DAMPs) and autophagy. Liver samples from six-week-old rats injected with APAP (1000 mg/kg BW, ip, once) after 15 h fasting were collected at hour 10, and on days 1, 2, 3, and 5. Liver lesions consisting of coagulation necrosis and inflammation were seen in the affected centrilobular area on days 1 and 2, and then, recovered with reparative fibrosis by day 5. Liver exudative enzymes increased transiently on day 1. CD68+ M1-macrophages increased significantly on days 1 and 2 with increased mRNAs of M1-related cytokines such as IFN-g and TNF-α, whereas CD163+ M2-macrophages appeared later on days 2 and 3. Macrophages reacting to MHC class II and Iba1 showed M1-type polarization, and CD204+ macrophages tended to be polarized toward M2-type. At hour 10, interestingly, HMGB1 (representative DAMPs) and its related signals, TLR-9 and MyD88, as well as LC3B+ autophagosomes began to increase. Collectively, the pathogenesis of rat APAP hepatotoxicity, which is the first, detailed report for a rat model, might be influenced by macrophage functions of M1 type for tissue injury/inflammation and M2-type for anti-inflammatory/fibrosis; particularly, M1-type may function in relation to DAMPs and autophagy. Understanding the interplayed mechanisms would provide new insight into hepato-pathogenesis and contribute to the possible development of therapeutic strategies.
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166
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Green Tea Polyphenols Protect against Acetaminophen-Induced Liver Injury by Regulating the Drug Metabolizing Enzymes and Transporters. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:2696432. [PMID: 33273950 PMCID: PMC7695491 DOI: 10.1155/2020/2696432] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 09/21/2020] [Accepted: 11/03/2020] [Indexed: 01/15/2023]
Abstract
Green tea polyphenols (GTPs) have been shown to exhibit diverse beneficial effects against a variety of diseases. Acetaminophen (APAP) overdose is one of the most frequent causes of drug-induced liver injury. In the current study, we aimed to investigate the protective effect of GTP on APAP-induced liver injury in mice and the underlying mechanisms involved. Male C57BL/6J mice were treated orally with different doses of GTP (37.5, 75, or 150 mg/kg) 4 h after APAP overdose (400 mg/kg) and continuously given every 8 h until sacrificed at 4, 12, 20, and 48 h after the first treatment of GTP. Survival rate and histological and biochemical assessments were performed to evaluate the APAP-induced liver injury. Protein expression of multiple drug metabolizing enzymes and transporters was measured to demonstrate the possible mechanisms involved. Our results revealed that administration of different doses of GTP significantly alleviated APAP-induced liver injury by improving the survival rate, hepatocellular necrosis, and ALT/AST/GSH levels after APAP overdose (400 mg/kg). The protein expression of APAP-induced drug transporters and metabolizing enzymes was mostly induced by GTP treatment, which was followed by reduction in drug transporters at the later time points. The current study collectively demonstrated that GTP protects against APAP-induced liver injury, possibly through regulating drug metabolizing enzymes and transporters after APAP overdose.
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167
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Zielińska A, Włodarczyk M, Makaro A, Sałaga M, Fichna J. Management of pain in colorectal cancer patients. Crit Rev Oncol Hematol 2020; 157:103122. [PMID: 33171427 DOI: 10.1016/j.critrevonc.2020.103122] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 08/04/2020] [Accepted: 10/02/2020] [Indexed: 12/26/2022] Open
Abstract
In this review we focus on the pathophysiology of CRC-related pain and discuss currently applied pain management. Pain is a symptom reported by over 70 % of colorectal cancer (CRC) patients. It remains a feared and debilitating consequence of both cancer and cancer-related treatment. There are many options for pain management in CRC, consisting of intravenous, oral or topical medications. In order to address the full spectrum of pain, proper treatment should address the nociceptive, neuropathic and/or psychogenic pain component. Currently available methods do not bring pain relief to satisfying number of patients and, if used improperly, can cause a number of complications. Therefore, future treatments should focus primarily on alleviating pain, but also on reducing possible side effects. In this article we cover recent and promising pharmacological and non- pharmacological developments emerging in the field of CRC treatment.
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Affiliation(s)
- Anna Zielińska
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Poland
| | - Marcin Włodarczyk
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Poland; Department of General and Colorectal Surgery, Faculty of Medicine, Medical University of Lodz, Poland
| | - Adam Makaro
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Poland
| | - Maciej Sałaga
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Poland
| | - Jakub Fichna
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Poland.
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168
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Bhushan B, Apte U. Acetaminophen Test Battery (ATB): A Comprehensive Method to Study Acetaminophen-Induced Acute Liver Injury. Gene Expr 2020; 20:125-138. [PMID: 32443984 PMCID: PMC7650012 DOI: 10.3727/105221620x15901763757677] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Acetaminophen (APAP) overdose is the major cause of acute liver failure (ALF) in the Western world. Extensive research is ongoing to identify the mechanisms of APAP-induced ALF. APAP-induced acute liver injury is also one of the most commonly studied drug-induced liver injury models in the field of hepatotoxicity. APAP toxicity is triphasic and includes three mechanistically interlinked but temporally distinct phases of initiation, progression, and recovery/regeneration. Despite how commonly it is studied, the methods to study APAP toxicity differ significantly, often leading to confusing and contradictory data. There are number of reviews on mechanisms of APAP toxicity, but a detailed mechanism-based comprehensive method and list of assays that covers all phases of APAP hepatotoxicity are missing. The goal of this review is to provide a standard protocol and guidelines to study APAP toxicity in mice including a test battery that can help investigators to comprehensively analyze APAP toxicity in the specific context of their hypothesis. Further, we will identify the major roadblocks and common technical problems that can significantly affect the results. This acetaminophen test battery (ATB) will be an excellent guide for scientists studying this most common and clinically relevant drug-induced liver injury and will also be helpful as a roadmap for hypothesis development to study novel mechanisms.
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Affiliation(s)
- Bharat Bhushan
- *Department of Pathology and Pittsburgh Liver Research Center, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Udayan Apte
- †Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS, USA
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169
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Arzuk E, Karakuş F, Orhan H. Bioactivation of clozapine by mitochondria of the murine heart: Possible cause of cardiotoxicity. Toxicology 2020; 447:152628. [PMID: 33166605 DOI: 10.1016/j.tox.2020.152628] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 10/26/2020] [Accepted: 11/03/2020] [Indexed: 01/11/2023]
Abstract
The mechanism of clozapine-associated cardiotoxicity has not been elucidated. The formation of a reactive nitrenium ion from the drug has been suggested as the cause, however, the reason why the heart is a target remains unknown. The heart is one of the most perfused organs; therefore, it contains a large number of mitochondria per cell; these organelles are responsible for both oxygen metabolism and energy production due to high energy expenditure. Given that mitochondria play critical roles in cellular homeostasis and maintenance, this study tested the hypothesis that cardiac mitochondria are both a target and initiator of clozapine-induced cardiotoxicity through activating the drug. We investigated whether murine heart receives a relatively high amount of systemically administered drug (20 mg/kg, i.p., Wistar albino rats) and whether cardiac mice (Swiss albino) and rat (Wistar albino) mitochondria locally activate clozapine (100 μM) to a reactive metabolite. We observed a relatively large distribution of clozapine to heart tissue as well as the formation of reactive metabolites by cardiac mitochondria in situ. Mitochondrial cytochrome P450 enzymes (CYP) in cardiac tissue responsible for biotransformation of clozapine were also characterized. CYP3A4 has been found to be the major enzyme catalyzes CLZ bioactivation, while CYP1A largely and CYP3A4 partially catalyzes the formation of stable metabolites of CLZ. At 100 μM concentration, clozapine caused a significant decline in mitochondrial oxygen consumption rate in vitro as much as positive control (antimycin A), while it did not induce mitochondrial permeability transition pore opening. These data provide an explanation as to why the heart is a target for clozapine adverse effects.
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Affiliation(s)
- Ege Arzuk
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Ege University, 35040 Bornova-İzmir, Turkey
| | - Fuat Karakuş
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Ege University, 35040 Bornova-İzmir, Turkey
| | - Hilmi Orhan
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Ege University, 35040 Bornova-İzmir, Turkey.
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170
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4-methylpyrazole protects against acetaminophen-induced acute kidney injury. Toxicol Appl Pharmacol 2020; 409:115317. [PMID: 33157119 DOI: 10.1016/j.taap.2020.115317] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/27/2020] [Accepted: 10/31/2020] [Indexed: 12/14/2022]
Abstract
Acetaminophen (APAP) hepatotoxicity is the most common cause of acute liver failure in the United States, and while a significant percentage of APAP overdose patients develop kidney injury, molecular mechanisms involved in APAP-induced nephrotoxicity are relatively unknown. We have shown that 4-methylpyrazole (4MP, Fomepizole) protects against APAP-induced liver injury by inhibiting reactive metabolite formation through Cyp2E1, and analysis of data from APAP overdose patients indicated that kidney dysfunction strongly correlated with severe liver injury. Since Cyp2E1 is also expressed in the kidney, this study explored protection by 4MP against APAP-induced nephrotoxicity. Male C57BL/6 J mice were treated with either 300 or 600 mg/kg APAP with or without 4MP for 2, 6 or 24 h, followed by measurement of APAP metabolism and tissue injury. Interestingly, levels of APAP and its non-oxidative metabolites were significantly higher in kidneys when compared to the liver. APAP-protein adducts were present in both tissues within 2 h, but were absent in kidney mitochondria, unlike in the liver. While GSH depletion was seen in both tissues, activation of c-jun N-terminal kinase and its translocation to the mitochondria, which is a critical feature of APAP-induced liver injury, was not detected in the kidney. Treatment with 4MP attenuated APAP oxidative metabolite generation, GSH depletion as well as kidney injury indicating its potential use in protection against APAP-induced nephrotoxicity. In conclusion, since reactive metabolite formation seems to be common in both liver and kidney, 4MP mediated inhibition of Cyp2E1 protects against APAP-induced nephrotoxicity. However, downstream mechanisms of APAP-induced nephrotoxicity seem distinct from the liver.
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171
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Scutellarin is Highly Likely to be Responsible for Drug-Drug Interactions Mediated by Hepatic Organic Anion-Transporting Polypeptide1B3. Pharm Res 2020; 37:232. [PMID: 33123800 PMCID: PMC7595966 DOI: 10.1007/s11095-020-02950-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 10/07/2020] [Indexed: 11/03/2022]
Abstract
Purpose Scutellarin, a flavonoid derived from the plant Erigeron breviscapus, is currently widely used to treat cerebrovascular diseases, liver-related diseases, and hyperlipidemia in china and other East Asian countries. This study was to investigate the effect of scutellarin on the uptake of rosuvastatin in HEK293T cells expressing human organic anion transporting polypeptide 1B3 (hOATP1B3) and rat OATP1B2 (rOATP1B2), respectively, and the effect of scutellarin on the pharmacokinetics of rosuvastatin in rats. Methods The newly established HEK293T cells expressing hOATP1B3 and rOATP1B2 were used to examine the effects of scutellarin and positive controls on in vitro rosuvastatin transport. After co-feeding with scutellarin, the rosuvastatin area under the plasma concentration-time curve (AUC0–24h), the peak plasma drug concentration (Cmax), elimination half-life (t1/2), time to reach Cmax (tmax), clearance (CL) and apparent clearance (CL/F) of rosuvastatin were determined in rats. Results Scutellarin inhibited hOATP1B3- and rOATP1B2-mediated rosuvastatin uptake (IC50: 45.54 ± 6.67 μM and 27.58 ± 3.97 μM) in vitro in a concentration-dependent manner. After co-feeding with scutellarin, the AUC0–24h and Cmax of rosuvastatin in rats increased to 27.4% and 37.7%, respectively. The t1/2 and tmax of rosuvastatin showed no significant change. Moreover, scutellarin caused 29.2% and 28.1% decrease in the CL and CL/F of rosuvastatin. Conclusion Scutellarin may inhibit the hOATP1B3- and rOATP1B2-mediated transport of rosuvastatin in vitro, and exerts a moderate inhibitory effect on the pharmacokinetics of rosuvastatin in rats. Scutellarin is highly likely to participate in drug-drug interactions, as mediated by OATP1B3 in humans.
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172
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McGill MR, Hinson JA. The development and hepatotoxicity of acetaminophen: reviewing over a century of progress. Drug Metab Rev 2020; 52:472-500. [PMID: 33103516 DOI: 10.1080/03602532.2020.1832112] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Acetaminophen (APAP) was first synthesized in the 1800s, and came on the market approximately 65 years ago. Since then, it has become one of the most used drugs in the world. However, it is also a major cause of acute liver failure. Early investigations of the mechanisms of toxicity revealed that cytochrome P450 enzymes catalyze formation of a reactive metabolite in the liver that depletes glutathione and covalently binds to proteins. That work led to the introduction of N-acetylcysteine (NAC) as an antidote for APAP overdose. Subsequent studies identified the reactive metabolite N-acetyl-p-benzoquinone imine, specific P450 enzymes involved, the mechanism of P450-mediated oxidation, and major adducted proteins. Significant gaps remain in our understanding of the mechanisms downstream of metabolism, but several events appear critical. These events include development of an initial oxidative stress, reactive nitrogen formation, altered calcium flux, JNK activation and mitochondrial translocation, inhibition of mitochondrial respiration, the mitochondrial permeability transition, and nuclear DNA fragmentation. Additional research is necessary to complete our knowledge of the toxicity, such as the source of the initial oxidative stress, and to greatly improve our understanding of liver regeneration after APAP overdose. A better understanding of these mechanisms may lead to additional treatment options. Even though NAC is an excellent antidote, its effectiveness is limited to the first 16 hours following overdose.
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Affiliation(s)
- Mitchell R McGill
- Department of Environmental and Occupational Health, Fay W. Boozman College of Public Health, Little Rock, AR, USA.,Department of Pharmacology and Toxicology, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Jack A Hinson
- Department of Pharmacology and Toxicology, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, USA
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173
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Koyuncuoğlu T, Yıldırım A, Dertsiz EK, Yüksel M, Ercan F, Yeğen BÇ. Estrogen receptor agonists protect against acetaminophen-induced hepatorenal toxicity in rats. Life Sci 2020; 263:118561. [PMID: 33045213 DOI: 10.1016/j.lfs.2020.118561] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/16/2020] [Accepted: 10/01/2020] [Indexed: 02/07/2023]
Abstract
AIMS Acetaminophen-induced hepatorenal toxicity varies among sexes with controversial results among species. The aim was to compare the impact of sex and ovarian hormones on hepatorenal toxicity and to elucidate protective effects of estrogen and estrogen receptor (ER) agonists. MAIN METHODS Under anesthesia, female rats underwent ovariectomy (OVX) or sham-OVX. Starting at postsurgical 40th day, OVX-rats received subcutaneously (each, 1 mg/kg/day) 17β-estradiol (E2), ERβ-agonist (DPN) or ERα-agonist (PPT) for 10 days, while male and sham-OVX rats received vehicle for 10 days. Then, rats received either acetaminophen (3 g/kg) or saline by orogastric gavage and were decapitated at 24th h. Blood samples were obtained to measure serum ALT, AST, BUN, creatinine levels. Liver and kidney samples were obtained for histopathologic examination and for analyzing levels of luminol- and lucigenin-chemiluminescence, glutathione and myeloperoxidase activity. KEY FINDINGS Compared to their control groups, levels of AST, ALT, BUN, creatinine, hepatic and renal myeloperoxidase activity and chemiluminescence levels were increased, and hepatic glutathione level was decreased in acetaminophen-administered male groups, while ALT and hepatic chemiluminescence levels were not elevated in sham-OVX-rats. Both ER-agonists and E2 reduced BUN, creatinine and reversed all oxidative parameters in renal tissues of OVX-rats. Additionally, ERα-agonist reversed all hepatic injury parameters, while ERβ-agonist elevated hepatic glutathione level. SIGNIFICANCE Acetaminophen toxicity in female rats presented with a more preserved hepatic function, while renal toxicity was not influenced by sex or by the lack of ovarian hormones. Pretreatment with estrogen or ER agonists, via their antioxidant actions, provided protective effects on acetaminophen-induced hepatorenal toxicity.
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Affiliation(s)
- Türkan Koyuncuoğlu
- Department of Physiology, School of Medicine, Marmara University, Istanbul, Turkey
| | - Alper Yıldırım
- Department of Physiology, School of Medicine, Marmara University, Istanbul, Turkey
| | - Ekin K Dertsiz
- Department of Histology & Embryology, School of Medicine, Marmara University, Istanbul, Turkey
| | - Meral Yüksel
- Department of Medical Laboratory, Vocational School of Health-Related Professions, Marmara University, Istanbul, Turkey
| | - Feriha Ercan
- Department of Histology & Embryology, School of Medicine, Marmara University, Istanbul, Turkey
| | - Berrak Ç Yeğen
- Department of Physiology, School of Medicine, Marmara University, Istanbul, Turkey.
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174
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Murray FJ, Monnot AD, Jacobson-Kram D, Cohen SM, Hardisty JF, Bandara SB, Kovochich M, Deore M, Pitchaiyan SK, Gelotte CK, Lai JCK, Atillasoy E, Hermanowski-Vosatka A, Kuffner E, Unice KM, Yang K, Gebremichael Y, Howell BA, Eichenbaum G. A critical review of the acetaminophen preclinical carcinogenicity and tumor promotion data and their implications for its carcinogenic hazard potential. Regul Toxicol Pharmacol 2020; 118:104801. [PMID: 33039518 DOI: 10.1016/j.yrtph.2020.104801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 09/11/2020] [Accepted: 10/06/2020] [Indexed: 12/22/2022]
Abstract
In 2019 the California Office of Environmental Health Hazard Assessment (OEHHA) initiated a review of the carcinogenic hazard potential of acetaminophen, including an assessment of the long-term rodent carcinogenicity and tumor initiation/promotion studies. The objective of the analysis herein was to inform this review process with a weight-of-evidence assessment of these studies and an assessment of the relevance of these models to humans. In most of the 14 studies, there were no increases in the incidences of tumors in any organ system. In the few studies in which an increase in tumor incidence was observed, there were factors such as absence of a dose response and a rodent-specific tumor supporting that these findings are not relevant to human hazard identification. In addition, we performed qualitative analysis and quantitative simulations of the exposures to acetaminophen and its metabolites and its toxicity profile; the data support that the rodent models are toxicologically relevant to humans. The preclinical carcinogenicity results are consistent with the broader weight of evidence assessment and evaluations of multiple international health authorities supporting that acetaminophen is not a carcinogenic hazard.
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Affiliation(s)
| | | | | | - Samuel M Cohen
- Havlik-Wall Professor of Oncology, Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
| | | | | | | | | | | | | | | | | | | | | | | | - Kyunghee Yang
- DILIsym Services Inc., Research Triangle Park, NC, USA
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175
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The Late-Stage Protective Effect of Mito-TEMPO against Acetaminophen-Induced Hepatotoxicity in Mouse and Three-Dimensional Cell Culture Models. Antioxidants (Basel) 2020; 9:antiox9100965. [PMID: 33050213 PMCID: PMC7601533 DOI: 10.3390/antiox9100965] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 10/06/2020] [Indexed: 02/06/2023] Open
Abstract
An overdose of acetaminophen (APAP), the most common cause of acute liver injury, induces oxidative stress that subsequently causes mitochondrial impairment and hepatic necroptosis. N-acetyl-L-cysteine (NAC), the only recognized drug against APAP hepatotoxicity, is less effective the later it is administered. This study evaluated the protective effect of mitochondria-specific Mito-TEMPO (Mito-T) on APAP-induced acute liver injury in C57BL/6J male mice, and a three dimensional (3D)-cell culture model containing the human hepatoblastoma cell line HepG2. The administration of Mito-T (20 mg/kg, i.p.) 1 h after APAP (400 mg/kg, i.p.) injection markedly attenuated the APAP-induced elevated serum transaminase activity and hepatic necrosis. However, Mito-T treatment did not affect key factors in the development of APAP liver injury including the activation of c-jun N-terminal kinases (JNK), and expression of the transcription factor C/EBP homologous protein (CHOP) in the liver. However, Mito-T significantly reduced the APAP-induced increase in the hepatic oxidative stress marker, nitrotyrosine, and DNA fragmentation. Mito-T markedly attenuated cytotoxicity induced by APAP in the HepG2 3D-cell culture model. Moreover, liver regeneration after APAP hepatotoxicity was not affected by Mito-T, demonstrated by no changes in proliferating cell nuclear antigen formation. Therefore, Mito-T was hepatoprotective at the late-stage of APAP overdose in mice.
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176
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Umbaugh DS, Jaeschke H. Extracellular vesicles: Roles and applications in drug-induced liver injury. Adv Clin Chem 2020; 102:63-125. [PMID: 34044913 DOI: 10.1016/bs.acc.2020.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Extracellular vesicles (EV) are defined as nanosized particles, with a lipid bilayer, that are unable to replicate. There has been an exponential increase of research investigating these particles in a wide array of diseases and deleterious states (inflammation, oxidative stress, drug-induced liver injury) in large part due to increasing recognition of the functional capacity of EVs. Cells can package lipids, proteins, miRNAs, DNA, and RNA into EVs and send these discrete packages of molecular information to distant, recipient cells to alter the physiological state of that cell. EVs are innately heterogeneous as a result of the diverse molecular pathways that are used to generate them. However, this innate heterogeneity of EVs is amplified due to the diversity in isolation techniques and lack of standardized nomenclature in the literature making it unclear if one scientist's "exosome" is another scientist's "microvesicle." One goal of this chapter is to provide the contextual understanding of EV origin so one can discern between divergent nomenclature. Further, the chapter will explore the potential protective and harmful roles that EVs play in DILI, and the potential of EVs and their cargo as a biomarker. The use of EVs as a therapeutic as well as a vector for therapeutic delivery will be discussed.
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Affiliation(s)
- David S Umbaugh
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, KS, United States
| | - Hartmut Jaeschke
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, KS, United States.
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177
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Akakpo JY, Ramachandran A, Jaeschke H. Novel strategies for the treatment of acetaminophen hepatotoxicity. Expert Opin Drug Metab Toxicol 2020; 16:1039-1050. [PMID: 32862728 DOI: 10.1080/17425255.2020.1817896] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Acetaminophen (APAP) hepatotoxicity is the leading cause of acute liver failure in the western world. Despite extensive investigations into the mechanisms of cell death, only a single antidote, N-acetylcysteine, is in clinical use. However, there have recently been more efforts made to translate mechanistic insight into identification of therapeutic targets and potential new drugs for this indication. AREAS COVERED After a short review of the key events in the pathophysiology of APAP-induced liver injury and recovery, the pros and cons of targeting individual steps in the pathophysiology as therapeutic targets are discussed. While the re-purposed drug fomepizole (4-methylpyrazole) and the new entity calmangafodipir are most advanced based on the understanding of their mechanism of action, several herbal medicine extracts and their individual components are also considered. EXPERT OPINION Fomepizole (4-methylpyrazole) is safe and has shown efficacy in preclinical models, human hepatocytes and in volunteers against APAP overdose. The safety of calmangafodipir in APAP overdose patients was shown but it lacks solid preclinical efficacy studies. Both drugs require a controlled phase III trial to achieve regulatory approval. All studies of herbal medicine extracts and components suffer from poor experimental design, which questions their clinical utility at this point.
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Affiliation(s)
- Jephte Y Akakpo
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center , Kansas City, KS, USA
| | - Anup Ramachandran
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center , Kansas City, KS, USA
| | - Hartmut Jaeschke
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center , Kansas City, KS, USA
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178
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Berthier J, Benmameri M, Sauvage FL, Fabre G, Chantemargue B, Arnion H, Marquet P, Trouillas P, Picard N, Saint-Marcoux F. MRP4 is responsible for the efflux transport of mycophenolic acid β-d glucuronide (MPAG) from hepatocytes to blood. Xenobiotica 2020; 51:105-114. [PMID: 32820679 DOI: 10.1080/00498254.2020.1813352] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Mycophenolic acid (MPA) has become a cornerstone of immunosuppressive therapy, in particular for transplant patients. In the gastrointestinal tract, the liver and the kidney, MPA is mainly metabolized into phenyl-β-d glucuronide (MPAG). Knowledge about the interactions between MPA/MPAG and membrane transporters is still fragmented. The aim of the present study was to explore these interactions with the basolateral hepatic MRP4 transporter. The inhibition of the MRP4-driven transport by various drugs which can be concomitantly prescribed was also evaluated. In vitro experiments using vesicles overexpressing MRP4 showed an ATP-dependent transport of MPAG driven by MRP4 (Michaelis-Menten constant of 233.9 ± 32.8 µM). MPA was not effluxed by MRP4. MRP4-mediated transport of MPAG was inhibited (from -43% to -84%) by ibuprofen, cefazolin, cefotaxime and micafungin. An in silico approach based on molecular docking and molecular dynamics simulations rationalized the mode of binding of MPAG to MRP4. The presence of the glucuronide moiety in MPAG was highlighted as key, being prone to make electrostatic and H-bond interactions with specific residues of the MRP4 protein chamber. This explains why MPAG is a substrate of MRP4 whereas MPA is not.
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Affiliation(s)
- Joseph Berthier
- INSERM, UMR 1248, Univ. Limoges, Limoges, France.,CHU Limoges, Service de Pharmacologie, Toxicologie et Pharmacovigilance, Limoges, France
| | | | | | - Gabin Fabre
- INSERM, UMR 1248, Univ. Limoges, Limoges, France
| | | | | | - Pierre Marquet
- INSERM, UMR 1248, Univ. Limoges, Limoges, France.,CHU Limoges, Service de Pharmacologie, Toxicologie et Pharmacovigilance, Limoges, France
| | - Patrick Trouillas
- INSERM, UMR 1248, Univ. Limoges, Limoges, France.,RCPTM, Univ. Palacký of Olomouc, Olomouc, Czech Republic
| | - Nicolas Picard
- INSERM, UMR 1248, Univ. Limoges, Limoges, France.,CHU Limoges, Service de Pharmacologie, Toxicologie et Pharmacovigilance, Limoges, France
| | - Franck Saint-Marcoux
- INSERM, UMR 1248, Univ. Limoges, Limoges, France.,CHU Limoges, Service de Pharmacologie, Toxicologie et Pharmacovigilance, Limoges, France
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179
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Clemens MM, Vazquez JH, Kennon-McGill S, McCullough SS, James LP, McGill MR. Pre-treatment twice with liposomal clodronate protects against acetaminophen hepatotoxicity through a pre-conditioning effect. LIVER RESEARCH 2020; 4:145-152. [PMID: 33042596 PMCID: PMC7544241 DOI: 10.1016/j.livres.2020.07.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND AIM Acetaminophen (APAP) overdose is a major cause of acute liver injury, but the role of macrophages in propagation of the hepatotoxicity is controversial. Early research revealed that macrophage inhibitors protect against APAP injury. However, later work demonstrated that macrophage ablation by acute pre-treatment with liposomal clodronate (LC) exacerbates the toxicity. To our surprise, during other studies, we observed that pre-treatment twice with LC seemed to protect against APAP hepatotoxicity, in contrast to acute pre-treatment. The aim of this study was to confirm that observation and to explore the mechanisms. METHODS We treated mice with empty liposomes (LE) or LC twice per week for 1 week before APAP overdose and collected blood and liver tissue at 0, 2, and 6 h post-APAP. We then measured liver injury (serum ALT activity, histology), APAP bioactivation (total glutathione, APAP-protein adducts), oxidative stress (oxidized glutathione [GSSG]), glutamate cysteine-ligase subunit c (Gclc) mRNA, and nuclear factor erythroid 2-related factor (Nrf2) immunofluorescence. We also confirmed ablation of macrophages by F4/80 immunohistochemistry. RESULTS Pre-treatment twice with LC dramatically reduced F4/80 staining, protected against liver injury, and reduced oxidative stress at 6 h post-APAP, without affecting APAP bioactivation. Importantly, Gclc mRNA was higher in the LC group at 0 h and total glutathione was higher at 2 h, indicating accelerated glutathione re-synthesis after APAP overdose due to greater basal glutamate-cysteine ligase. Oxidative stress was lower in the LC groups at both time points. Finally, total Nrf2 immunofluorescence was higher in the LC group. CONCLUSIONS We conclude that multiple pre-treatments with LC protect against APAP by accelerating glutathione re-synthesis through glutamate-cysteine ligase. Investigators using two or possibly more LC pre-treatments to deplete macrophages, including peritoneal macrophages, should be aware of this possible confounder.
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Affiliation(s)
- Melissa M. Clemens
- Dept. of Pharmacology and Toxicology, College of Medicine, University of Arkansas for Medical Sciences, 4301 W. Markham St., Little Rock, AR, USA 72205,Interdisciplinary Graduate Program in Biomedical Sciences, Graduate School, University of Arkansas for Medical Sciences, 4301 W. Markham St., Little Rock, AR USA 72205
| | - Joel H. Vazquez
- Dept. of Pharmacology and Toxicology, College of Medicine, University of Arkansas for Medical Sciences, 4301 W. Markham St., Little Rock, AR, USA 72205,Interdisciplinary Graduate Program in Biomedical Sciences, Graduate School, University of Arkansas for Medical Sciences, 4301 W. Markham St., Little Rock, AR USA 72205
| | - Stefanie Kennon-McGill
- Dept. of Environmental and Occupational Health, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, 4301 W. Markham St., Little Rock, AR, USA 72205
| | - Sandra S. McCullough
- Dept. of Pediatrics, College of Medicine, University of Arkansas for Medical Sciences, 4301 W. Markham St., Little Rock, AR USA 72205
| | - Laura P. James
- Dept. of Pediatrics, College of Medicine, University of Arkansas for Medical Sciences, 4301 W. Markham St., Little Rock, AR USA 72205
| | - Mitchell R. McGill
- Dept. of Pharmacology and Toxicology, College of Medicine, University of Arkansas for Medical Sciences, 4301 W. Markham St., Little Rock, AR, USA 72205,Dept. of Environmental and Occupational Health, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, 4301 W. Markham St., Little Rock, AR, USA 72205,Center for Dietary Supplement Research, University of Arkansas for Medical Sciences, 4301 W. Markham St., Little Rock, AR, USA 72205
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180
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Cuadrado A, Pajares M, Benito C, Jiménez-Villegas J, Escoll M, Fernández-Ginés R, Garcia Yagüe AJ, Lastra D, Manda G, Rojo AI, Dinkova-Kostova AT. Can Activation of NRF2 Be a Strategy against COVID-19? Trends Pharmacol Sci 2020; 41:598-610. [PMID: 32711925 PMCID: PMC7359808 DOI: 10.1016/j.tips.2020.07.003] [Citation(s) in RCA: 143] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/08/2020] [Accepted: 07/08/2020] [Indexed: 01/08/2023]
Abstract
Acute respiratory distress syndrome (ARDS) caused by SARS-CoV-2 is largely the result of a dysregulated host response, followed by damage to alveolar cells and lung fibrosis. Exacerbated proinflammatory cytokines release (cytokine storm) and loss of T lymphocytes (leukopenia) characterize the most aggressive presentation. We propose that a multifaceted anti-inflammatory strategy based on pharmacological activation of nuclear factor erythroid 2 p45-related factor 2 (NRF2) can be deployed against the virus. The strategy provides robust cytoprotection by restoring redox and protein homeostasis, promoting resolution of inflammation, and facilitating repair. NRF2 activators such as sulforaphane and bardoxolone methyl are already in clinical trials. The safety and efficacy information of these modulators in humans, together with their well-documented cytoprotective and anti-inflammatory effects in preclinical models, highlight the potential of this armamentarium for deployment to the battlefield against COVID-19.
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Affiliation(s)
- Antonio Cuadrado
- Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid (UAM), Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Investigación Sanitaria la Paz (idiPAZ), Instituto de Investigaciones Biomédicas 'Alberto Sols', Consejo Superior de Investigaciones Científicas (CSIC), UAM, Madrid, Spain; Department of Cellular and Molecular Medicine, Victor Babes National Institute of Pathology, Bucharest, Romania.
| | - Marta Pajares
- Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid (UAM), Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Investigación Sanitaria la Paz (idiPAZ), Instituto de Investigaciones Biomédicas 'Alberto Sols', Consejo Superior de Investigaciones Científicas (CSIC), UAM, Madrid, Spain
| | - Cristina Benito
- Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid (UAM), Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Investigación Sanitaria la Paz (idiPAZ), Instituto de Investigaciones Biomédicas 'Alberto Sols', Consejo Superior de Investigaciones Científicas (CSIC), UAM, Madrid, Spain
| | - José Jiménez-Villegas
- Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid (UAM), Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Investigación Sanitaria la Paz (idiPAZ), Instituto de Investigaciones Biomédicas 'Alberto Sols', Consejo Superior de Investigaciones Científicas (CSIC), UAM, Madrid, Spain
| | - Maribel Escoll
- Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid (UAM), Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Investigación Sanitaria la Paz (idiPAZ), Instituto de Investigaciones Biomédicas 'Alberto Sols', Consejo Superior de Investigaciones Científicas (CSIC), UAM, Madrid, Spain
| | - Raquel Fernández-Ginés
- Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid (UAM), Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Investigación Sanitaria la Paz (idiPAZ), Instituto de Investigaciones Biomédicas 'Alberto Sols', Consejo Superior de Investigaciones Científicas (CSIC), UAM, Madrid, Spain
| | - Angel J Garcia Yagüe
- Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid (UAM), Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Investigación Sanitaria la Paz (idiPAZ), Instituto de Investigaciones Biomédicas 'Alberto Sols', Consejo Superior de Investigaciones Científicas (CSIC), UAM, Madrid, Spain
| | - Diego Lastra
- Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid (UAM), Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Investigación Sanitaria la Paz (idiPAZ), Instituto de Investigaciones Biomédicas 'Alberto Sols', Consejo Superior de Investigaciones Científicas (CSIC), UAM, Madrid, Spain
| | - Gina Manda
- Department of Cellular and Molecular Medicine, Victor Babes National Institute of Pathology, Bucharest, Romania
| | - Ana I Rojo
- Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid (UAM), Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Investigación Sanitaria la Paz (idiPAZ), Instituto de Investigaciones Biomédicas 'Alberto Sols', Consejo Superior de Investigaciones Científicas (CSIC), UAM, Madrid, Spain
| | - Albena T Dinkova-Kostova
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, UK; Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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181
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Liang W, Ren H, Li Y, Qiu H, Ye BC. A robust electrochemical sensing based on bimetallic metal-organic framework mediated Mo 2C for simultaneous determination of acetaminophen and isoniazid. Anal Chim Acta 2020; 1136:99-105. [PMID: 33081955 DOI: 10.1016/j.aca.2020.08.044] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 08/15/2020] [Accepted: 08/22/2020] [Indexed: 12/24/2022]
Abstract
Herein, a Mo2C/bimetallic zeolitic imidazolate framework-modified glassy carbon electrode (Mo2C@BMZIFs/GCE) was established as an electrochemical sensor for the simultaneous sensitive determination of acetaminophen (APAP) and isoniazid (INZ). The apparent morphology, structural composition, and electrochemical properties were comprehensively investigated. The outstanding electrocatalytic activity and conductivity endow the sensor desirable electrochemical performance toward APAP and INZ compared to the bare GCE, such as wide linear range, low detection limit, and high selectivity. Under the optimum conditions, a linear relationship between the oxidation peak current and the concentration of the measured object was obtained, with linear ranges from 0.1 to 300 μM for APAP and from 10 to 3500 μM for INZ. The detection limits for APAP and INZ were 0.03 μM and 1.5 μM, respectively. More importantly, the APAP and INZ oxidation peaks could be completely separated. Moreover, the highly sensitive and stable sensor was applied to detect APAP and INZ in human serum. This work can provide a viable route to rational design and construct electrochemical sensors for drug monitoring and clinical diagnosis.
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Affiliation(s)
- Wencui Liang
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, 832003, China
| | - Hailong Ren
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, 832003, China
| | - Yangguang Li
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, 832003, China
| | - Huiqiang Qiu
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, 832003, China
| | - Bang-Ce Ye
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, 832003, China; Institute of Engineering Biology and Health, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, China.
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182
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Gehre C, Flechner M, Kammerer S, Küpper JH, Coleman CD, Püschel GP, Uhlig K, Duschl C. Real time monitoring of oxygen uptake of hepatocytes in a microreactor using optical microsensors. Sci Rep 2020; 10:13700. [PMID: 32792676 PMCID: PMC7426412 DOI: 10.1038/s41598-020-70785-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 08/04/2020] [Indexed: 12/18/2022] Open
Abstract
Most in vitro test systems for the assessment of toxicity are based on endpoint measurements and cannot contribute much to the establishment of mechanistic models, which are crucially important for further progress in this field. Hence, in recent years, much effort has been put into the development of methods that generate kinetic data. Real time measurements of the metabolic activity of cells based on the use of oxygen sensitive microsensor beads have been shown to provide access to the mode of action of compounds in hepatocytes. However, for fully exploiting this approach a detailed knowledge of the microenvironment of the cells is required. In this work, we investigate the cellular behaviour of three types of hepatocytes, HepG2 cells, HepG2-3A4 cells and primary mouse hepatocytes, towards their exposure to acetaminophen when the availability of oxygen for the cell is systematically varied. We show that the relative emergence of two modes of action, one NAPQI dependent and the other one transient and NAPQI independent, scale with expression level of CYP3A4. The transient cellular response associated to mitochondrial respiration is used to characterise the influence of the initial oxygen concentration in the wells before exposure to acetaminophen on the cell behaviour. A simple model is presented to describe the behaviour of the cells in this scenario. It demonstrates the level of control over the role of oxygen supply in these experiments. This is crucial for establishing this approach into a reliable and powerful method for the assessment of toxicity.
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Affiliation(s)
- Christian Gehre
- Branch Bioanalytics and Bioprocesses (IZI-BB), Fraunhofer-Institute for Cell Therapy and Immunology, Potsdam, Germany
| | - Marie Flechner
- Branch Bioanalytics and Bioprocesses (IZI-BB), Fraunhofer-Institute for Cell Therapy and Immunology, Potsdam, Germany
| | - Sarah Kammerer
- Faculty of Science, Brandenburg University of Technology Cottbus-Senftenberg, Senftenberg, Germany
| | - Jan-Heiner Küpper
- Faculty of Science, Brandenburg University of Technology Cottbus-Senftenberg, Senftenberg, Germany
| | - Charles Dominic Coleman
- Department of Nutritional Biochemistry, Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany
| | - Gerhard Paul Püschel
- Department of Nutritional Biochemistry, Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany
| | - Katja Uhlig
- Branch Bioanalytics and Bioprocesses (IZI-BB), Fraunhofer-Institute for Cell Therapy and Immunology, Potsdam, Germany.
| | - Claus Duschl
- Branch Bioanalytics and Bioprocesses (IZI-BB), Fraunhofer-Institute for Cell Therapy and Immunology, Potsdam, Germany
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183
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Hu C, Chen Y, Cao Y, Jia Y, Zhang J. Metabolomics analysis reveals the protective effect of quercetin-3-O-galactoside (Hyperoside) on liver injury in mice induced by acetaminophen. J Food Biochem 2020; 44:e13420. [PMID: 32744346 DOI: 10.1111/jfbc.13420] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/15/2020] [Accepted: 07/16/2020] [Indexed: 11/27/2022]
Abstract
We investigated the protective effect of Hyperoside (HPS) on liver injury induced by acetaminophen (APAP) in C57 mice. HPS was administered orally for 7 days and APAP was administered orally on the 7th day. Serum and liver samples were then collected for biochemical analyses, histopathology assessments, and metabolomics studies. Metabolites were assessed using a UHPLC-MS system. Principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA) were used to process the data. Pathway analyses were performed using Metaboanalyst 4.0. Western blot and qRT-PCR were used to determine the protein and mRNA levels, respectively. HPS interacted with active sites in CYP2E1 and caused protein degradation. In conclusion, our results suggested that HPS prevented the oxidative stress-induced liver injury caused by APAP. PRACTICAL APPLICATIONS: Hyperoside was shown to have potential protective and therapeutic effects against liver diseases. Male C57 mice were used to perform pharmacodynamic, pharmacology, and metabolomics evaluations. At a dose of 60 mg/kg, HPS prevented oxidative stress-induced liver injury caused by APAP by regulating the glutathione-related metabolites and enzymes through the inhibition of CYP2E1.
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Affiliation(s)
- Cheng Hu
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ying Chen
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Traditional Chinese Medicine Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yiyuan Cao
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yiqun Jia
- Shanghai Traditional Chinese Medicine Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jiaqi Zhang
- Shanghai Traditional Chinese Medicine Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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184
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Jaeschke H, Ramachandran A. Acetaminophen-induced apoptosis: Facts versus fiction. J Clin Transl Res 2020; 6:36-47. [PMID: 33426354 PMCID: PMC7787220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 07/08/2020] [Accepted: 07/08/2020] [Indexed: 12/15/2022] Open
Abstract
An overdose of the widely used analgesic acetaminophen (APAP) is the most common cause of acute liver failure in the western world and hence is a clinically significant problem. Thus, mechanisms of APAP-induced hepatotoxicity have been the focus of extensive investigation for decades and it was established that APAP induces hepatocyte cell death by necrosis. Although APAP-induced necrosis shares some features of apoptosis induced by the intrinsic pathway, apoptotic cell death in this context was ruled out due to the absence of caspase activation and lack of protection by caspase inhibitors and missing morphological characteristics of apoptotic cells. Deeper mechanistic understanding of the cell death process after APAP in recent years has now revealed that cells die by programmed necrosis and apoptosis is not a relevant mode of cell death in this context. Hence, it is alarming to note that an increasing number of studies are being published purporting to indicate that APAP induces apoptotic cell death. These papers broadly measure "apoptotic markers" with questionable specificity such as Bax, Bcl-2 and caspase-3 protein expression, or use the terminal deoxynucleotidyl transferase dUTP nick end labeling assay as basis for the conclusion that there is apoptosis after APAP overdose. The misguided use of these apoptosis parameters in correlative studies without context or scientific rationale confuses the field and threatens to undo decades of careful mechanistic investigation into this topic. This review examines this emerging problem in detail and recommends approaches to correct it. RELEVANCE FOR PATIENTS Hepatotoxicity and acute liver failure caused by an acetaminophen overdose is a serious clinical problem in western countries. Understanding the mode of cell death and the signaling pathways involved is critical for developing new therapeutic approaches. Recent trends to claim that apoptosis is a relevant mode of cell death in acetaminophen hepatotoxicity are not justified by sound scientific data and will not lead to effective new drug development.
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Affiliation(s)
- Hartmut Jaeschke
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS, USA,
Corresponding author: Hartmut Jaeschke Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS, 66160, USA. Tel. +1 913 588 7969
| | - Anup Ramachandran
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS, USA
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185
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Barbosa I, Pizarro I, Freitas R, Nunes B. Antioxidative and neurotoxicity effects of acute and chronic exposure of the estuarine polychaete Hediste diversicolor to paracetamol. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2020; 77:103377. [PMID: 32251999 DOI: 10.1016/j.etap.2020.103377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 03/15/2020] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
The presence of anthropogenic drugs in the aquatic ecosystems is a reality nowadays, and a large number of studies have been reporting their putative toxic effects on wildlife. However, the majority of the studies published so far uses standard organisms, whose probability of becoming in contact with drugs in real scenarios of contamination is at least, low. The use of autochthonous organisms in ecotoxicity testing is thus mandatory, and the present study aimed to assess the feasibility of assessing oxidative based stress responses (enzymatic defenses, such as catalase, glutathione-s-transferases, and lipid peroxidation; neurotoxicity as an indirect outcome of oxidizing conditions) on a polychaete species, Hediste diversicolor, after being acutely and chronically exposed to the widely employed drug paracetamol. H. diversicolor showed to be responsive to paracetamol exposure. Data obtained after acute exposure to paracetamol showed that no antioxidant adaptive response was established, but cholinesterasic activity was enhanced. On the contrary, long term exposure of H. diversicolor individuals to paracetamol resulted in clear pro-oxidative effects, with catalase and cholinesterase inhibition, and a significant reduction in the levels of lipoperoxidation. Considering that some of the tested levels (especially those of the chronic test) were already reported in the wild, the here-obtained results are of high environmental significance. In addition, chronic exposure regime yielded more significant results, with important modification of more parameters, suggesting that realistic conditions of exposure are more suited for an integrated assessment of toxicity of drugs in aquatic organisms.
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Affiliation(s)
- Inês Barbosa
- Departmento de Biologia, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Inês Pizarro
- Departmento de Biologia, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Rosa Freitas
- Departmento de Biologia, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; Centro de Estudos do Ambiente e do Mar (CESAM), University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Bruno Nunes
- Departmento de Biologia, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; Centro de Estudos do Ambiente e do Mar (CESAM), University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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186
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Wu G, Win S, Than TA, Chen P, Kaplowitz N. Gut Microbiota and Liver Injury (I)-Acute Liver Injury. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1238:23-37. [PMID: 32323178 DOI: 10.1007/978-981-15-2385-4_3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Over the last few decades, intestinal microbial communities have been considered to play a vital role in host liver health. Acute liver injury (ALI) is the manifestation of sudden hepatic injury and arises from a variety of causes. The studies of dysbiosis in gut microbiota provide new insight into the pathogenesis of ALI. However, the relationship of gut microbiota and ALI is not well understood, and the contribution of gut microbiota to ALI has not been well characterized. In this chapter, we integrate several major pathogenic factors in ALI with the role of gut microbiota to stress the significance of gut microbiota in prevention and treatment of ALI.
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Affiliation(s)
- Guangyan Wu
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Proteomics, School of Basic Medical Sciences, Southern Medical University, N.No 1838 Guangzhou Ave., Guangzhou, 510515, China
| | - Sanda Win
- USC Research Center for Liver Disease, Department of Medicine, Keck School of Medicine of USC, Los Angeles, CA, 90089, USA
| | - Tin A Than
- USC Research Center for Liver Disease, Department of Medicine, Keck School of Medicine of USC, Los Angeles, CA, 90089, USA
| | - Peng Chen
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Proteomics, School of Basic Medical Sciences, Southern Medical University, N.No 1838 Guangzhou Ave., Guangzhou, 510515, China
| | - Neil Kaplowitz
- USC Research Center for Liver Disease, Department of Medicine, Keck School of Medicine of USC, Los Angeles, CA, 90089, USA.
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187
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Maeda M, Tanaka R, Aso M, Sakamoto Y, Song I, Ochiai M, Saito Y, Maekawa K, Arakawa N, Ohno Y, Kumagai Y. Hepatic Adaptation to Therapeutic Doses of Acetaminophen: An Exploratory Study in Healthy Individuals. Clin Ther 2020; 42:1276-1291.e1. [DOI: 10.1016/j.clinthera.2020.05.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 05/01/2020] [Accepted: 05/02/2020] [Indexed: 02/06/2023]
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188
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Britza SM, Musgrave IF, Byard RW. Paracetamol (acetaminophen) hepatotoxicity increases in the presence of an added herbal compound. Leg Med (Tokyo) 2020; 47:101740. [PMID: 32634765 DOI: 10.1016/j.legalmed.2020.101740] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 06/10/2020] [Accepted: 06/20/2020] [Indexed: 02/07/2023]
Abstract
Hepatotoxicity from paracetamol/acetaminophen has occasionally been reported at lower than expected doses. As herbal preparations may interact with pharmaceutical drugs the following in vitro study was undertaken to determine whether the toxic effects of paracetamol on liver cell growth in culture would be exacerbated by the addition of psoralen, a furanocoumarin compound that is present in Psoralea corylifolia, a common Chinese herb. The following study utilising a liver carcinoma cell line (HepG2) showed that Psoralea corylifolia was significantly toxic from 0.3 mg/ml to 5 mg/ml (p < 0.05), whereas paracetamol was not toxic below 50 mM (p = 0.0026). Interactions between previously non-toxic levels of 0.1 mg/ml of Psoralea corylifolia and increasing concentrations of paracetamol (0-50 mM), however, were observed, with a significant increase in toxicity compared to paracetamol alone (30% cell death vs. 72% cell death with Psoralea corylifolia). A significant synergistic interaction was observed at 40 mM paracetamol with 0.1 mg/ml of Psoralea (p = 0.038). This study has, therefore, shown significantly increased hepatotoxicity in cell cultures exposed to paracetamol when herbal compounds containing furanocoumarins were added. Fulminant acute liver failure occurring after the ingestion of low doses of paracetamol may not, therefore, always be due to an occult idiosyncratic response to paracetamol, but instead possibly to the combined effects of paracetamol and herbal preparations. Given the widespread use of both paracetamol and herbal preparations this possibility should be considered in cases of unexplained hepatic necrosis and liver failure that present for medicolegal investigation.
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Affiliation(s)
- Susan M Britza
- Adelaide Medical School, The University of Adelaide, Adelaide 5005, South Australia, Australia
| | - Ian F Musgrave
- Adelaide Medical School, The University of Adelaide, Adelaide 5005, South Australia, Australia
| | - Roger W Byard
- Adelaide Medical School, The University of Adelaide, Adelaide 5005, South Australia, Australia; Forensic Science South Australia, Adelaide, South Australia 5000, Australia.
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189
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Tan Q, Liu Y, Deng X, Chen J, Tsai PJ, Chen PH, Ye M, Guo J, Su Z. Autophagy: a promising process for the treatment of acetaminophen-induced liver injury. Arch Toxicol 2020; 94:2925-2938. [PMID: 32529281 DOI: 10.1007/s00204-020-02780-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 05/07/2020] [Indexed: 12/13/2022]
Abstract
Toxicity from drugs has become an important cause of acute liver failure. Acetaminophen, a commonly used analgesic, can cause severe acute liver injury that can worsen into acute liver failure. Autophagy, a protective cell programme, has been reported to have protective effects in a variety of diseases such as cancer, immune diseases, neurodegenerative diseases, and inflammatory diseases. In this review, we describe how an excess of acetaminophen causes liver injury step by step, from the formation of the initial protein adduct to the final hepatocyte necrosis, as well as the induction of autophagy and its beneficial effects on diseases. Emphasis is placed on the potential effect of autophagy on improving the damage of acetaminophen to hepatocytes. Finally, we are committed to providing insights into the treatment of acute liver failure through the mechanism of acetaminophen induced liver injury, the mechanism of autophagy, and the link between autophagy and liver injury.
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Affiliation(s)
- Qiuhua Tan
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou, China.,Guangdong Metabolic Diseases Research Centre of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yongjian Liu
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou, China.,Guangdong Metabolic Diseases Research Centre of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Xiaoyi Deng
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou, China.,Guangdong Metabolic Diseases Research Centre of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jiajia Chen
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou, China.,Guangdong Metabolic Diseases Research Centre of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Ping-Ju Tsai
- King-Prebiotics Biotechnology (TW) CO., Ltd., New Taipei City, Taiwan, ROC
| | - Pei-Hsuan Chen
- King-Prebiotics Biotechnology (TW) CO., Ltd., New Taipei City, Taiwan, ROC
| | - Manxiang Ye
- New Francisco (Yunfu City) Biotechnology CO. Ltd., Yunfu, China
| | - Jiao Guo
- Guangdong Metabolic Diseases Research Centre of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China.
| | - Zhengquan Su
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou, China.
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190
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Human multidrug resistance protein 4 (MRP4) is a cellular efflux transporter for paracetamol glutathione and cysteine conjugates. Arch Toxicol 2020; 94:3027-3032. [PMID: 32472168 PMCID: PMC7415487 DOI: 10.1007/s00204-020-02793-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 05/20/2020] [Indexed: 11/02/2022]
Abstract
Paracetamol (acetaminophen, APAP) overdose is a leading cause of acute drug-induced liver failure. APAP hepatotoxicity is mediated by the reactive metabolite N-acetyl-p-benzoquinone imine (NAPQI). NAPQI is inactivated by conjugation with glutathione (GSH) to APAP-GSH, which is further converted into its cysteine derivative APAP-CYS. Before necrosis of hepatocytes occurs, APAP-CYS is measurable in plasma of the affected patient and it has been proposed as an early biomarker of acetaminophen toxicity. APAP-GSH and APAP-CYS can be extruded by hepatocytes, but the transporters involved are unknown. In this study we examined whether ATP-binding cassette (ABC) transporters play a role in the cellular efflux of APAP, APAP-GSH, and APAP-CYS. The ABC transport proteins P-gp/ABCB1, BSEP/ABCB11, BCRP/ABCG2, and MRP/ABCC1-5 were overexpressed in HEK293 cells and membrane vesicles were produced. Whereas P-gp, BSEP, MRP3, MRP5, and BCRP did not transport any of the compounds, uptake of APAP-GSH was found for MRP1, MRP2 and MRP4. APAP-CYS appeared to be a substrate of MRP4 and none of the ABC proteins transported APAP. The results suggest that the NAPQI metabolite APAP-CYS can be excreted into plasma by MRP4, where it could be a useful biomarker for APAP exposure and toxicity. Characterization of the cellular efflux of APAP-CYS is important for its development as a biomarker, because plasma concentrations might be influenced by drug-transporter interactions and upregulation of MRP4.
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191
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Mohi-Ud-Din R, Mir RH, Sawhney G, Dar MA, Bhat ZA. Possible Pathways of Hepatotoxicity Caused by Chemical Agents. Curr Drug Metab 2020; 20:867-879. [PMID: 31702487 DOI: 10.2174/1389200220666191105121653] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/30/2019] [Accepted: 10/16/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND Liver injury induced by drugs has become a primary reason for acute liver disease and therefore posed a potential regulatory and clinical challenge over the past few decades and has gained much attention. It also remains the most common cause of failure of drugs during clinical trials. In 50% of all acute liver failure cases, drug-induced hepatoxicity is the primary factor and 5% of all hospital admissions. METHODS The various hepatotoxins used to induce hepatotoxicity in experimental animals include paracetamol, CCl4, isoniazid, thioacetamide, erythromycin, diclofenac, alcohol, etc. Among the various models used to induce hepatotoxicity in rats, every hepatotoxin causes toxicity by different mechanisms. RESULTS The drug-induced hepatotoxicity caused by paracetamol accounts for 39% of the cases and 13% hepatotoxicity is triggered by other hepatotoxic inducing agents. CONCLUSION Research carried out and the published papers revealed that hepatotoxins such as paracetamol and carbon- tetrachloride are widely used for experimental induction of hepatotoxicity in rats.
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Affiliation(s)
- Roohi Mohi-Ud-Din
- Department of Pharmaceutical Sciences, University of Kashmir, Pharmacognosy Division, Hazratbal, Srinagar 190006, Kashmir, India
| | - Reyaz Hassan Mir
- Pharmaceutical Chemistry Division, Department of Pharmaceutical Sciences, University of Kashmir, Hazratbal, Srinagar 190006, Kashmir, India
| | - Gifty Sawhney
- Inflammation Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu-Tawi, Jammu 180001, India
| | - Mohd Akbar Dar
- Pharmaceutical Chemistry Division, Department of Pharmaceutical Sciences, University of Kashmir, Hazratbal, Srinagar 190006, Kashmir, India
| | - Zulfiqar Ali Bhat
- Department of Pharmaceutical Sciences, University of Kashmir, Pharmacognosy Division, Hazratbal, Srinagar 190006, Kashmir, India
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192
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Stefanello ST, de Carvalho NR, Reis SB, Soares FAA, Barcelos RP. Acetaminophen Oxidation and Inflammatory Markers - A Review of Hepatic Molecular Mechanisms and Preclinical Studies. Curr Drug Targets 2020; 21:1225-1236. [PMID: 32386489 DOI: 10.2174/1389450121666200510014418] [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: 11/01/2019] [Revised: 01/06/2020] [Accepted: 02/21/2020] [Indexed: 11/22/2022]
Abstract
Acetaminophen is a widely used analgesic for pain management, especially useful in chronic diseases, such as rheumatoid arthritis. However, easy access to this medicine has increased the occurrence of episodes of poisoning. Patients often develop severe liver damage, which may quickly lead to death. Consequently, numerous studies have been conducted to identify new biomarkers that allow the prediction of the degree of acetaminophen intoxication and thus intervene in a timely manner to save patients' lives. This review highlights the main mechanisms of the induction and progression of liver damage arising from acetaminophen poisoning. In addition, we have discussed the possibility of using new clinical biomarkers for detecting acetaminophen poisoning.
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Affiliation(s)
- Silvio Terra Stefanello
- Programa de Pos-Graduacao em Bioquimica Toxicologica, Centro de Ciencias Naturais e Exatas (CCNE), Universidade Federal de Santa Maria, Brazil
| | | | - Simone Beder Reis
- Institudo de Ciencias Biologicas (ICB), Programa de Posgraduacao em Bioexperimentacao, Universidade de Passo Fundo, Passo Fundo, Brazil
| | - Felix Alexandre Antunes Soares
- Programa de Pos-Graduacao em Bioquimica Toxicologica, Centro de Ciencias Naturais e Exatas (CCNE), Universidade Federal de Santa Maria, Brazil
| | - Rômulo Pillon Barcelos
- Programa de Pos-Graduacao em Bioquimica Toxicologica, Centro de Ciencias Naturais e Exatas (CCNE), Universidade Federal de Santa Maria, Brazil
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193
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Rotundo L, Pyrsopoulos N. Liver injury induced by paracetamol and challenges associated with intentional and unintentional use. World J Hepatol 2020; 12:125-136. [PMID: 32685105 PMCID: PMC7336293 DOI: 10.4254/wjh.v12.i4.125] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 12/26/2019] [Accepted: 02/18/2020] [Indexed: 02/06/2023] Open
Abstract
Drug induced liver injury (DILI) is a common cause of acute liver injury. Paracetamol, also known as acetaminophen, is a widely used anti-pyretic that has long been established to cause liver toxicity once above therapeutic levels. Hepatotoxicity from paracetamol overdose, whether intentional or non-intentional, is the most common cause of DILI in the United States and remains a global issue. Given the increased prevalence of combination medications in the form of pain relievers and antihistamines, paracetamol can be difficult to identify and remains a significant cause of acute hepatotoxicity, as evidenced by its contribution to over half of all acute liver failure cases in the United States. This is especially concerning given that, when co-ingested with other medications, the rise in serum paracetamol levels may be delayed past the 4-hour post-ingestion mark that is currently used to determine patients that require medical therapy. This review serves to describe the clinical and pathophysiologic features of hepatotoxicity secondary to paracetamol and provide an update on current available knowledge and treatment options.
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Affiliation(s)
- Laura Rotundo
- Department of Medicine, Rutgers New Jersey Medical School, Newark, NJ 07103, United States
| | - Nikolaos Pyrsopoulos
- Department of Gastroenterology and Hepatology, Rutgers New Jersey Medical School, Newark, NJ 07103, United States
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194
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Ullah H, Khan A, Baig MW, Ullah N, Ahmed N, Tipu MK, Ali H, Khan S. Poncirin attenuates CCL4-induced liver injury through inhibition of oxidative stress and inflammatory cytokines in mice. BMC Complement Med Ther 2020; 20:115. [PMID: 32307011 PMCID: PMC7168870 DOI: 10.1186/s12906-020-02906-7] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 03/26/2020] [Indexed: 12/31/2022] Open
Abstract
Background In the present study, the poncirin which is flavonoid-7-o-glycosides (isolated from the Poncirus trifoliata) in nature was evaluated against the Carbon tetra chloride (CCL4)-induced liver injury. The poncirin have been reported for various anti-inflammatory, analgesic activity etc. Based on the previous studies it was anticipated that the poncirin will ameliorate CCL4-induced liver injury. Methods The CCL4-induced acute and chronic liver injury model (albino BALB/c mice) was used. Following the induction of the liver injury various parameters such as food and water intake, body weight and weight to dry ratio changes were assessed. Furthermore, various hematological, biochemical parameters and histological studies such as hemotoxylin and eosin (H and E) staining were performed. The poncirin treatment was also evaluated against the pro-inflammatory cytokines such as interleukin-1β (IL-1β), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) using enzyme link immunosorbant assay (ELISA). The Swiss Target prediction software was used to investigate interaction of the poncirin on the various hepatic enzymes. Results The poncirin treatment markedly improved the behavioral parameters such as food and water intake. The liver weight variation was attenuated and total body was improved markedly. The hematological and biochemical parameters were significantly improved compared to the CCL4 treated groups. The anti-oxidants were induced, while oxidative stress markers were reduced promisingly. The H and E staining showed that poncirin treatment significantly improved the histology of liver compared to the CCL4 treated group. Furthermore, the poncirin treatment also evidently decreased the inflammatory mediators. Conclusions The poncirin treatment showed marked improvement in behavioral, biochemical and histological parameters following CCL4-induced liver injury. Additionally, the poncirin treatment also markedly improved the antioxidant enzymes, attenuated the oxidative stress markers and inflammatory cytokines.
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Affiliation(s)
- Hadayat Ullah
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Ashrafullah Khan
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Muhammad Waleed Baig
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Naseem Ullah
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Naveed Ahmed
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Muhammad Khalid Tipu
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Hussain Ali
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Salman Khan
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan.
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195
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Jetter A, Kullak-Ublick GA. Drugs and hepatic transporters: A review. Pharmacol Res 2020; 154:104234. [DOI: 10.1016/j.phrs.2019.04.018] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/25/2019] [Accepted: 04/16/2019] [Indexed: 12/22/2022]
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196
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Ma X, McKeen T, Zhang J, Ding WX. Role and Mechanisms of Mitophagy in Liver Diseases. Cells 2020; 9:cells9040837. [PMID: 32244304 PMCID: PMC7226762 DOI: 10.3390/cells9040837] [Citation(s) in RCA: 133] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/23/2020] [Accepted: 03/28/2020] [Indexed: 12/12/2022] Open
Abstract
The mitochondrion is an organelle that plays a vital role in the regulation of hepatic cellular redox, lipid metabolism, and cell death. Mitochondrial dysfunction is associated with both acute and chronic liver diseases with emerging evidence indicating that mitophagy, a selective form of autophagy for damaged/excessive mitochondria, plays a key role in the liver’s physiology and pathophysiology. This review will focus on mitochondrial dynamics, mitophagy regulation, and their roles in various liver diseases (alcoholic liver disease, non-alcoholic fatty liver disease, drug-induced liver injury, hepatic ischemia-reperfusion injury, viral hepatitis, and cancer) with the hope that a better understanding of the molecular events and signaling pathways in mitophagy regulation will help identify promising targets for the future treatment of liver diseases.
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Affiliation(s)
- Xiaowen Ma
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS 66160, USA; (X.M.); (T.M.)
| | - Tara McKeen
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS 66160, USA; (X.M.); (T.M.)
| | - Jianhua Zhang
- Department of Pathology, Division of Molecular Cellular Pathology, University of Alabama at Birmingham, 901 19th street South, Birmingham, AL 35294, USA;
| | - Wen-Xing Ding
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS 66160, USA; (X.M.); (T.M.)
- Correspondence: ; Tel.: +1-913-588-9813
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197
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Li D, Wu L, Knox B, Chen S, Tolleson WH, Liu F, Yu D, Guo L, Tong W, Ning B. Long noncoding RNA LINC00844-mediated molecular network regulates expression of drug metabolizing enzymes and nuclear receptors in human liver cells. Arch Toxicol 2020; 94:1637-1653. [PMID: 32222775 DOI: 10.1007/s00204-020-02706-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 03/09/2020] [Indexed: 12/21/2022]
Abstract
Noncoding RNAs, such as long noncoding RNAs (lncRNAs) and microRNAs (miRNAs), regulate gene expression in many physiological and pathological processes, including drug metabolism. Drug metabolizing enzymes (DMEs) are critical components in drug-induced liver toxicity. In this study, we used human hepatic HepaRG cells treated with 5 or 10 mM acetaminophen (APAP) as a model system and identified LINC00844 as a toxicity-responsive lncRNA. We analyzed the expression profiles of LINC00844 in different human tissues. In addition, we examined the correlations between the levels of LINC00844 and those of key DMEs and nuclear receptors (NRs) for APAP metabolism in humans. Our results showed that lncRNA LINC00844 is enriched in the liver and its expression correlates positively with mRNA levels of CYP3A4, CYP2E1, SULT2A1, pregnane X receptor (PXR), and hepatocyte nuclear factor (HNF) 4α. We demonstrated that LINC00844 regulates the expression of these five genes in HepaRG cells using gain- and loss-of-function assays. Further, we discovered that LINC00844 is localized predominantly in the cytoplasm and acts as an hsa-miR-486-5p sponge, via direct binding, to protect SULT2A1 from miRNA-mediated gene silencing. Our data also demonstrated a functional interaction between LINC00844 and hsa-miR-486-5p in regulating DME and NR expression in HepaRG cells and primary human hepatocytes. We depicted a LINC00844-mediated regulatory network that involves miRNA and NRs and influences DME expression in response to APAP toxicity.
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Affiliation(s)
- Dongying Li
- National Center for Toxicological Research (NCTR), U.S. Food and Drug Administration (FDA), 3900 NCTR Road, HFT100, Jefferson, AR, 72079, USA
| | - Leihong Wu
- National Center for Toxicological Research (NCTR), U.S. Food and Drug Administration (FDA), 3900 NCTR Road, HFT100, Jefferson, AR, 72079, USA
| | - Bridgett Knox
- National Center for Toxicological Research (NCTR), U.S. Food and Drug Administration (FDA), 3900 NCTR Road, HFT100, Jefferson, AR, 72079, USA
| | - Si Chen
- National Center for Toxicological Research (NCTR), U.S. Food and Drug Administration (FDA), 3900 NCTR Road, HFT100, Jefferson, AR, 72079, USA
| | - William H Tolleson
- National Center for Toxicological Research (NCTR), U.S. Food and Drug Administration (FDA), 3900 NCTR Road, HFT100, Jefferson, AR, 72079, USA
| | - Fang Liu
- National Center for Toxicological Research (NCTR), U.S. Food and Drug Administration (FDA), 3900 NCTR Road, HFT100, Jefferson, AR, 72079, USA
| | - Dianke Yu
- School of Public Health, Qingdao University, Qingdao, China
| | - Lei Guo
- National Center for Toxicological Research (NCTR), U.S. Food and Drug Administration (FDA), 3900 NCTR Road, HFT100, Jefferson, AR, 72079, USA
| | - Weida Tong
- National Center for Toxicological Research (NCTR), U.S. Food and Drug Administration (FDA), 3900 NCTR Road, HFT100, Jefferson, AR, 72079, USA
| | - Baitang Ning
- National Center for Toxicological Research (NCTR), U.S. Food and Drug Administration (FDA), 3900 NCTR Road, HFT100, Jefferson, AR, 72079, USA.
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198
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van der Horst J, Manville RW, Hayes K, Thomsen MB, Abbott GW, Jepps TA. Acetaminophen (Paracetamol) Metabolites Induce Vasodilation and Hypotension by Activating Kv7 Potassium Channels Directly and Indirectly. Arterioscler Thromb Vasc Biol 2020; 40:1207-1219. [PMID: 32188278 DOI: 10.1161/atvbaha.120.313997] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Intravenous acetaminophen/paracetamol (APAP) is well documented to cause hypotension. Since the patients receiving intravenous APAP are usually critically ill, any severe hemodynamic changes, as with those associated with APAP, can be life-threatening. The mechanism underlying this dangerous iatrogenic effect of APAP was unknown. Approach and Results: Here, we show that intravenous APAP caused transient hypotension in rats, which was attenuated by the Kv7 channel blocker, linopirdine. APAP metabolite N-acetyl-p-benzoquinone imine caused vasodilatation of rat mesenteric arteries ex vivo. This vasodilatation was sensitive to linopirdine and also the calcitonin gene-related peptide antagonist, BIBN 4096. Further investigation revealed N-acetyl-p-benzoquinone imine stimulates calcitonin gene-related peptide release from perivascular nerves, causing a cAMP-dependent activation of Kv7 channels. We also show that N-acetyl-p-benzoquinone imine enhances Kv7.4 and Kv7.5 channels overexpressed in oocytes, suggesting that it can activate Kv7.4 and Kv7.5 channels directly, to elicit vasodilatation. CONCLUSIONS Direct and indirect activation of Kv7 channels by the APAP metabolite N-acetyl-p-benzoquinone imine decreases arterial tone, which can lead to a drop in blood pressure. Our findings provide a molecular mechanism and potential preventive intervention for the clinical phenomenon of intravenous APAP-dependent transient hypotension.
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Affiliation(s)
- Jennifer van der Horst
- From the Vascular Biology Group, Department of Biomedical Science (J.v.d.H., K.H., T.A.J.), University of Copenhagen, Denmark
| | - Rian W Manville
- Bioelectricity Laboratory, Department of Physiology and Biophysics, School of Medicine, University of California, Irvine (R.W.M., G.W.A.)
| | - Katie Hayes
- From the Vascular Biology Group, Department of Biomedical Science (J.v.d.H., K.H., T.A.J.), University of Copenhagen, Denmark
| | - Morten B Thomsen
- Cardiac Electrophysiology Group, Department of Biomedical Science (M.B.T.), University of Copenhagen, Denmark
| | - Geoffrey W Abbott
- Bioelectricity Laboratory, Department of Physiology and Biophysics, School of Medicine, University of California, Irvine (R.W.M., G.W.A.)
| | - Thomas A Jepps
- From the Vascular Biology Group, Department of Biomedical Science (J.v.d.H., K.H., T.A.J.), University of Copenhagen, Denmark
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199
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Chang L, Xu D, Zhu J, Ge G, Kong X, Zhou Y. Herbal Therapy for the Treatment of Acetaminophen-Associated Liver Injury: Recent Advances and Future Perspectives. Front Pharmacol 2020; 11:313. [PMID: 32218738 PMCID: PMC7078345 DOI: 10.3389/fphar.2020.00313] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 03/03/2020] [Indexed: 12/13/2022] Open
Abstract
Acetaminophen (APAP) overdose is the leading cause of drug-induced liver injury worldwide, and mitochondrial oxidative stress is considered the major event responsible for APAP-associated liver injury (ALI). Despite the identification of N-acetyl cysteine, a reactive oxygen species scavenger that is regarded as an effective clinical treatment, therapeutic effectiveness remains limited due to rapid disease progression and diagnosis at a late phase, which leads to the need to explore various therapeutic approaches. Since the early 1990s, a number of natural products and herbs have been found to have hepatoprotective effects against APAP-induced hepatotoxicity in terms of acute liver failure prevention and therapeutic amelioration of ALI. In this review, we summarize the hepatoprotective effects and mechanisms of medicinal plants, including herbs and fruit extracts, along with future perspectives that may provide guidance to improve the current status of herbal therapy against ALI.
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Affiliation(s)
- Ling Chang
- Department of Gastroenterology, The Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Dongwei Xu
- Department of Liver Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jianjun Zhu
- Department of Liver Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Guangbo Ge
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiaoni Kong
- Central Laboratory, Department of Liver Diseases, Institute of Clinical Immunology, ShuGuang Hospital Affiliated to Shanghai University of Chinese Traditional Medicine, Shanghai, China
| | - Ying Zhou
- Department of Gastroenterology, The Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
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200
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Jaeschke H, Ramachandran A. Mechanisms and pathophysiological significance of sterile inflammation during acetaminophen hepatotoxicity. Food Chem Toxicol 2020; 138:111240. [PMID: 32145352 DOI: 10.1016/j.fct.2020.111240] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 02/26/2020] [Accepted: 02/28/2020] [Indexed: 02/07/2023]
Abstract
Acetaminophen (APAP) is a widely used analgesic drug, which can cause severe liver injury after an overdose. The intracellular signaling mechanisms of APAP-induced cell death such as reactive metabolite formation, mitochondrial dysfunction and nuclear DNA fragmentation have been extensively studied. Hepatocyte necrosis releases damage-associated molecular patterns (DAMPs) which activate cytokine and chemokine formation in macrophages. These signals activate and recruit neutrophils, monocytes and other leukocytes into the liver. While this sterile inflammatory response removes necrotic cell debris and promotes tissue repair, the capability of leukocytes to also cause tissue injury makes this a controversial topic. This review summarizes the literature on the role of various DAMPs, cytokines and chemokines, and the pathophysiological function of Kupffer cells, neutrophils, monocytes and monocyte-derived macrophages, and NK and NKT cells during APAP hepatotoxicity. Careful evaluation of results and experimental designs of studies dealing with the inflammatory response after APAP toxicity provide very limited evidence for aggravation of liver injury but support of the hypothesis that these leukocytes promote tissue repair. In addition, many cytokines and chemokines modulate tissue injury by affecting the intracellular signaling events of cell death rather than toxicity of leukocytes. Reasons for the controversial results in this area are also discussed.
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Affiliation(s)
- Hartmut Jaeschke
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, KS, 66160, USA.
| | - Anup Ramachandran
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, KS, 66160, USA.
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