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Azuma I, Mizuno T, Morita K, Suzuki Y, Kusuhara H. Investigation of the usefulness of liver-specific deconvolution method by establishing a liver benchmark dataset. NAR Genom Bioinform 2024; 6:lqad111. [PMID: 38187088 PMCID: PMC10768887 DOI: 10.1093/nargab/lqad111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 10/31/2023] [Accepted: 12/16/2023] [Indexed: 01/09/2024] Open
Abstract
Immune responses in the liver are related to the development and progression of liver failure, and precise prediction of their behavior is important. Deconvolution is a methodology for estimating the immune cell proportions from the transcriptome, and it is mainly applied to blood-derived samples and tumor tissues. However, the influence of tissue-specific modeling on the estimation results has rarely been investigated. Here, we constructed a system to evaluate the performance of the deconvolution method on liver transcriptome data. We prepared seven mouse liver injury models using small-molecule compounds and established a benchmark dataset with corresponding liver bulk RNA-Seq and immune cell proportions. RNA-Seq expression for nine leukocyte subsets and four liver-associated cell types were obtained from the Gene Expression Omnibus to provide a reference. We found that the combination of reference cell sets affects the estimation results of reference-based deconvolution methods and established a liver-specific deconvolution by optimizing the reference cell set for each cell to be estimated. We applied this model to independent datasets and showed that liver-specific modeling is highly extrapolatable. We expect that this approach will enable sophisticated estimation from rich tissue data accumulated in public databases and to obtain information on aggregated immune cell trafficking.
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Affiliation(s)
- Iori Azuma
- Graduate School of Pharmaceutical Sciences, the University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
| | - Tadahaya Mizuno
- To whom correspondence should be addressed. Tel: +81 3 5841 4771; Fax: +81 3 5841 4766;
| | - Katsuhisa Morita
- Graduate School of Pharmaceutical Sciences, the University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
| | - Yutaka Suzuki
- Graduate School of Frontier Sciences, The University of Tokyo, Chiba 277-8561, Japan
| | - Hiroyuki Kusuhara
- Graduate School of Pharmaceutical Sciences, the University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
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2
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Izawa T, Travlos GS, Cortes RA, Clayton NP, Sills RC, Pandiri AR. Absence of Increased Susceptibility to Acetaminophen-Induced Liver Injury in a Diet-Induced NAFLD Mouse Model. Toxicol Pathol 2023; 51:112-125. [PMID: 37158481 PMCID: PMC10523943 DOI: 10.1177/01926233231171101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a common chronic liver disease and its influence on drug-induced liver injury (DILI) is not fully understood. We investigated whether NAFLD can influence acetaminophen (APAP [N-acetyl-p-aminophenol])-induced hepatotoxicity in a diet-induced obese (DIO) mouse model of NAFLD. The male C57BL/6NTac DIO mice, fed a high-fat diet for more than 12 weeks, developed obesity, hyperinsulinemia, impaired glucose tolerance, and hepatomegaly with hepatic steatosis, similar to human NAFLD. In the acute toxicity study after a single dose of APAP (150 mg/kg), compared with control lean mice, the DIO mice had decreased serum transaminase levels and less severe hepatocellular injury. The DIO mice also had altered expression of genes related to APAP metabolism. Chronic APAP exposure for 26 weeks did not predispose the DIO mice with NAFLD to more severe hepatotoxicity compared with the lean mice. These results suggested that the C57BL/6NTac DIO mouse model appears to be more tolerant to APAP-induced hepatotoxicity than lean mice, potentially related to altered xenobiotic metabolizing capacity in the fatty liver. Further mechanistic studies with APAP and other drugs in NAFLD animal models are necessary to investigate the mechanism of altered susceptibility to intrinsic DILI in some human NAFLD patients.
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Affiliation(s)
- Takeshi Izawa
- Comparative and Molecular Pathogenesis Branch, Division of Translational Toxicology, NIEHS, Research Triangle Park, NC, USA
- Laboratory of Veterinary Pathology, Osaka Metropolitan University, Izumisano, Osaka, Japan
| | - Gregory S. Travlos
- Comparative and Molecular Pathogenesis Branch, Division of Translational Toxicology, NIEHS, Research Triangle Park, NC, USA
| | - Ricardo A. Cortes
- Comparative and Molecular Pathogenesis Branch, Division of Translational Toxicology, NIEHS, Research Triangle Park, NC, USA
- Experimental Pathology Laboratories, Inc., Research Triangle Park, NC, USA
| | - Natasha P. Clayton
- Comparative and Molecular Pathogenesis Branch, Division of Translational Toxicology, NIEHS, Research Triangle Park, NC, USA
| | - Robert C. Sills
- Comparative and Molecular Pathogenesis Branch, Division of Translational Toxicology, NIEHS, Research Triangle Park, NC, USA
| | - Arun R. Pandiri
- Comparative and Molecular Pathogenesis Branch, Division of Translational Toxicology, NIEHS, Research Triangle Park, NC, USA
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3
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Baker BH, Rafikian EE, Hamblin PB, Strait MD, Yang M, Pearson BL. Sex-specific neurobehavioral and prefrontal cortex gene expression alterations following developmental acetaminophen exposure in mice. Neurobiol Dis 2023; 177:105970. [PMID: 36549432 PMCID: PMC9940030 DOI: 10.1016/j.nbd.2022.105970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 12/16/2022] [Accepted: 12/18/2022] [Indexed: 12/23/2022] Open
Abstract
Acetaminophen (N-acetyl-p-aminophenol (APAP), also known as paracetamol) is one of the most common medications used by the general population, including pregnant people. Although many human observational and animal model studies have shown associations between prenatal and early postnatal APAP exposure and attention deficit hyperactivity disorder, autism spectrum disorders, and altered neurodevelopment, the existing literature is limited. In particular, no mouse studies of prenatal APAP exposure have investigated offspring attention deficits in behavioral tasks specifically designed to measure attention, and no prior rodent studies have utilized 'omics' technologies, such as transcriptomics, for an untargeted exploration of potential mechanisms. We randomly assigned pregnant mice (starting embryonic day 4-10) to receive APAP (150 mg/kg/day) or vehicle control through postnatal day 14. We evaluated 111 mouse offspring in a battery of behavioral tests, including pup ultrasonic vocalizations, elevated plus-maze, open field test, CatWalk (gait), pre-pulse inhibition, and the automated 5-choice serial reaction time task. Prefrontal cortex was collected at birth from 24 pups for RNA sequencing. Developmental APAP treatment resulted in increased and hastened separation-induced pup vocalizations between postnatal days 2 and 11, as well as decreased ambulation and vertical rearings in the open field in male but not female adult offspring. APAP treatment was also associated with altered sex-specific prefrontal cortex gene expression relating to glutathione and cytochrome p450 metabolism, DNA damage, and the endocrine and immune systems. This study provides additional evidence for the neurodevelopmental harm of prenatal APAP exposure and generates hypotheses for underlying molecular pathways via RNA sequencing.
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Affiliation(s)
- Brennan H. Baker
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, NY, New York, United States of America
| | - Elizabeth E. Rafikian
- The Mouse Neurobehavior Core, Institute of Genomic Medicine, Columbia University College of Physicians and Surgeons, NY, New York, United States of America
| | - Paul B. Hamblin
- The Mouse Neurobehavior Core, Institute of Genomic Medicine, Columbia University College of Physicians and Surgeons, NY, New York, United States of America
| | - Madeleine D. Strait
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, NY, New York, United States of America
| | - Mu Yang
- The Mouse Neurobehavior Core, Institute of Genomic Medicine, Columbia University College of Physicians and Surgeons, NY, New York, United States of America
| | - Brandon L. Pearson
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, NY, New York, United States of America,Corresponding author at: 630 W. 168th St. 16th Floor, Room 16-421A, New York, NY 10032, United States of America. (B.L. Pearson)
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4
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Jiang X, Zhou Q, Du B, Li S, Huang Y, Chi Z, Lee WM, Yu M, Zheng J. Noninvasive monitoring of hepatic glutathione depletion through fluorescence imaging and blood testing. SCIENCE ADVANCES 2021; 7:7/8/eabd9847. [PMID: 33608272 PMCID: PMC7895432 DOI: 10.1126/sciadv.abd9847] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 01/06/2021] [Indexed: 05/29/2023]
Abstract
Hepatic glutathione plays a key role in regulating redox potential of the entire body, and its depletion is known to increase susceptibility to oxidative stress involved in many diseases. However, this crucial pathophysiological event can only be detected noninvasively with high-end instrumentation or invasively with surgical biopsy, limiting both preclinical research and clinical prevention of oxidative stress-related diseases. Here, we report that both in vivo fluorescence imaging and blood testing (the first-line detection in the clinics) can be used for noninvasive and consecutive monitoring of hepatic glutathione depletion at high specificity and accuracy with assistance of a body-clearable nanoprobe, of which emission and surface chemistries are selectively activated and transformed by hepatic glutathione in the liver sinusoids. These findings open a new avenue to designing exogenous blood markers that can carry information of local disease through specific nanobiochemical interactions back to the bloodstream for facile and rapid disease detection.
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Affiliation(s)
- Xingya Jiang
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080, USA
| | - Qinhan Zhou
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080, USA
| | - Bujie Du
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080, USA
| | - Siqing Li
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080, USA
| | - Yingyu Huang
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080, USA
| | - Zhikai Chi
- Department of Pathology, University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390-8887, USA
| | - William M Lee
- Division of Digestive and Liver Diseases, Department of Internal Medicine, University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390-8887, USA
| | - Mengxiao Yu
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080, USA
| | - Jie Zheng
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080, USA.
- Department of Urology, University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390-8887, USA
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Zakaria ZA, Sahmat A, Azmi AH, Nur Zainol AS, Omar MH, Balan T, Sulistyorini L, Azizah R, Abdullah MNH. Polyphenolics and triterpenes presence in chloroform extract of Dicranopteris linearis leaves attenuated paracetamol-induced liver intoxication in rat. BMC Complement Med Ther 2021; 21:35. [PMID: 33446155 PMCID: PMC7809736 DOI: 10.1186/s12906-020-03200-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 12/29/2020] [Indexed: 11/25/2022] Open
Abstract
Introduction Water-soluble, but not lipid-soluble, extract of Dicranopteris linearis leaves has been proven to possess hepatoprotective activity. The present study aimed to validate the hepatoprotective and antioxidant activities, and phytoconstituents of lipid-soluble (chloroform) extract of D. linearis leaves. Methods The extract of D. linearis leaves (CEDL; 50, 250 and 500 mg/kg) was orally administered to rats for 7 consecutive days followed by the oral administration of 3 g/kg PCM to induce liver injury. Blood was collected for liver function analysis while the liver was obtained for histopathological examination and endogenous antioxidant activity determination. The extract was also subjected to antioxidant evaluation and phytochemicals determination via phytochemical screening, HPLC and UPLC-HRMS analyses. Results CEDL exerted significant (p < 0.05) hepatoprotective activity at 250 and 500 mg/kg and significantly (p < 0.05) reversed the PCM-induced decrease in rat’s liver endogenous antioxidant (catalase and superoxide dismutase) level. CEDL possessed a high antioxidant capacity when measured using the ORAC assay, but a low total phenolic content value and radical scavenging activity as confirmed via several radical scavenging assays, which might be attributed particularly to the presence of triterpenes. Phytochemicals screening demonstrated the presence of triterpenes and flavonoids, while UPLC-HRMS analysis showed the presence of polyphenols belonging to the hydroxybenzoic acids, hydroxycinammates and flavonoid groups. Discussion and conclusion Lipid-soluble bioactive compounds of CEDL demonstrated hepatoprotective effect against PCM intoxication partly via the modulation of the endogenous antioxidant defense system, and exerted high antioxidant capacity. Further investigation is warranted to identify the potential hepatoprotective leads from CEDL for future drug development.
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Affiliation(s)
- Zainul Amiruddin Zakaria
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia. .,Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA, Puncak Alam Campus, 42300 Bandar Puncak Alam, Selangor, Malaysia. .,Department of Environmental Health, Faculty of Public Health, Campus C Universitas Airlangga, Jalan Mulyosari, Surabaya, Indonesia.
| | - Adibah Sahmat
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
| | - Azfar Hizami Azmi
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
| | - Amal Syahirah Nur Zainol
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
| | - Maizatul Hasyima Omar
- Phytochemistry Unit, Herbal Medicine Research Level 5, Block C7, National Institutes of Health (NIH), Setia Alam, 40170, Shah Alam, Selangor, Malaysia
| | - Tavamani Balan
- Faculty of Pharmacy and Health Sciences, Universiti Kuala Lumpur Royal College of Medicine Perak, 30450, Ipoh, Perak, Malaysia
| | - Lilis Sulistyorini
- Department of Environmental Health, Faculty of Public Health, Campus C Universitas Airlangga, Jalan Mulyosari, Surabaya, Indonesia
| | - R Azizah
- Department of Environmental Health, Faculty of Public Health, Campus C Universitas Airlangga, Jalan Mulyosari, Surabaya, Indonesia
| | - Muhammad Nazrul Hakim Abdullah
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
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6
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Dogaru G, Bulboaca AE, Gheban D, Boarescu PM, Rus V, Festila D, Sitar-Taut AV, Stanescu I. Effect of Liposomal Curcumin on Acetaminophen Hepatotoxicity by Down-regulation of Oxidative Stress and Matrix Metalloproteinases. In Vivo 2020; 34:569-582. [PMID: 32111755 PMCID: PMC7157894 DOI: 10.21873/invivo.11809] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/02/2019] [Accepted: 12/03/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND/AIM The hepatoprotective role of various molecules in drug-induced hepatotoxicity arouses great interest. We investigated the effect of liposomal curcumin (LCC) on experimental acetaminophen (APAP)-induced hepatotoxicity. MATERIALS AND METHODS Rats were randomly allocated into 5 groups, and the effect of two LCC concentrations was studied: group 1 - 1 ml intraperitoneal (i.p.) saline, group 2 - APAP pretreatment, group 3 - APAP+silymarin (extract of the silybum marianum with anti-inflammatory, anti-oxidant, and anti-fibrotic properties), group 4 - APAP+LCC1, group 5 - APAP+LCC2. The biomarkers of oxidative stress (nitric oxide and malondialdehyde) and antioxidant status of plasma (thiols and catalase), TNF-α, MMP-2 and MMP-9 serum levels were evaluated. RESULTS An improvement in oxidative stress, antioxidant status, and TNF-α, MMP-2 and MMP-9 levels was obtained in groups pretreated with LCC compared to silymarin treatment, in a dose-dependent manner. Histopathological examination reinforced the results. CONCLUSION Liposomal curcumin improves the oxidative stress/antioxidant balance and alleviates inflammation in experimental APAP-induced hepatotoxicity.
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Affiliation(s)
- Gabriela Dogaru
- Department of Medical Rehabilitation, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Adriana Elena Bulboaca
- Department of Pathophysiology, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Dan Gheban
- Department of Pathological Anatomy, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Paul Mihai Boarescu
- Department of Pathophysiology, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Vasile Rus
- Department of Cell Biology, Histology and Embryology, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania
| | - Dana Festila
- Department of Orthodontics, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Adela-Viviana Sitar-Taut
- Department of Internal Medicine, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Ioana Stanescu
- Department of Neurology, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
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LoPachin RM, Geohagen BC, Nordstrøm LU, Gavin T. Enolate-Forming Compounds as a Novel Approach to Cytoprotection. Chem Res Toxicol 2016; 29:2096-2107. [PMID: 27989140 DOI: 10.1021/acs.chemrestox.6b00300] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Evidence from laboratory studies and clinical trials suggests that plant-derived polyphenolic compounds such as curcumin, resveratrol, or phloretin might be useful in the treatment of certain diseases (e.g., Alzheimer's disease) and acute tissue injury states (e.g., spinal cord trauma). However, despite this potential, the corresponding chemical instability, toxic potential, and low bioavailability of these compounds could limit their ultimate clinical relevance. We have shown that pharmacophores of curcumin (e.g., 2-acetylcyclopentanone) and phloretin (e.g., 2',4',6'-trihydroxyacetophenone; THA) can provide cytoprotection in cell culture and animal models of oxidative stress injury. These pharmacophores are 1,3-dicarbonyl and polyphenol derivatives, the enol groups of which can ionize in biological solutions to form an enolate. This carbanionic moiety can chelate metal ions and, as a nucleophile, can scavenge toxic electrophiles (e.g., acrolein, 4-hydroxy-2-nonenal, and N-acetyl-p-benzoquinone imine) involved in many pathogenic conditions. Aromatic derivatives such as THA can also trap free oxygen and nitrogen radicals and thereby provide another layer of cytoprotection. The multifunctional character of these enolate-forming compounds suggests an ability to block pathogenic processes (e.g., oxidative stress) at several steps. The purpose of this review is to discuss research supporting our theory that enolate formation is a significant cytoprotective property that represents a platform for development of pharmacotherapeutic approaches to a variety of toxic and pathogenic conditions. Our discussion will focus on mechanism and structure-activity studies that define enolate chemistry and their corresponding relationships to cytoprotection.
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Affiliation(s)
- Richard M LoPachin
- Department of Anesthesiology, Montefiore Medical Center, Albert Einstein College of Medicine , Bronx, New York 10461, United States
| | - Brian C Geohagen
- Department of Anesthesiology, Montefiore Medical Center, Albert Einstein College of Medicine , Bronx, New York 10461, United States
| | - Lars Ulrik Nordstrøm
- Chemical Synthesis & Biology Core Facility, Albert Einstein College of Medicine , Bronx, New York 10461, United States
| | - Terrence Gavin
- Department of Chemistry, Iona College , New Rochelle, New York 10801, United States
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Saad A, Hegde S, Kechichian T, Gamble P, Rahman M, Stutz SJ, Anastasio NC, Alshehri W, Lei J, Mori S, Kajs B, Cunningham KA, Saade G, Burd I, Costantine M. Is There a Causal Relation between Maternal Acetaminophen Administration and ADHD? PLoS One 2016; 11:e0157380. [PMID: 27295086 PMCID: PMC4905664 DOI: 10.1371/journal.pone.0157380] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 05/28/2016] [Indexed: 11/19/2022] Open
Abstract
Objective Recent epidemiological studies reported an association between maternal intake of acetaminophen (APAP) and attention deficit hyperactivity disorder (ADHD) in their children. However, none of these studies demonstrated causality. Our objective was to determine whether exposure to APAP during pregnancy result in hyperkinetic dysfunctions in offspring, using a murine model. Material and Methods Pregnant CD1 mice (N = 8/group) were allocated to receive by gavage either APAP (150 mg/kg/day, equivalent to the FDA-approved maximum human clinical dose), or 0.5% carboxymethylcellulose (control group), starting on embryonic day 7 until delivery. Maternal serum APAP and alanine transaminase (ALT) concentrations were determined by ELISA and kinetic colorimetric assays, respectively. Open field locomotor activity (LMA) in the 30-day old mouse offspring was quantified using Photobeam Activity System. Mouse offspring were then sacrificed, whole brains processed for magnetic resonance imaging (MRI; 11.7 Tesla magnet) and for neuronal quantification using Nissl stain. The association between APAP exposure and LMA in mouse offspring was analyzed using a mixed effects Poisson regression model that accounted for mouse offspring weight, gender, random selection, and testing time and day. We corrected for multiple comparisons and considered P<0.008 as statistically significant. Results Maternal serum APAP concentration peaked 30 minutes after gavage, reaching the expected mean of 117 μg/ml. Serum ALT concentrations were not different between groups. There were no significant differences in vertical (rearing), horizontal, or total locomotor activity between the two rodent offspring groups at the P level fixed to adjust for multiple testing. In addition, no differences were found in volumes of 29 brain areas of interest on MRI or in neuronal quantifications between the two groups. Conclusion This study refutes that hypothesis that prenatal exposure to APAP causes hyperkinetic dysfunction in mouse offspring. Due to lack of accurate assessment of ADHD in murine models, our results should be taken with caution when compared to the reported clinical data.
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Affiliation(s)
- Antonio Saad
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas, United States of America
- * E-mail:
| | - Shruti Hegde
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Talar Kechichian
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Phyllis Gamble
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Mahbubur Rahman
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Sonja J. Stutz
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Noelle C. Anastasio
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Wael Alshehri
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Jun Lei
- Integrated Research Center for Fetal Medicine, Division of Maternal Fetal Medicine, Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Susumu Mori
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Bridget Kajs
- Integrated Research Center for Fetal Medicine, Division of Maternal Fetal Medicine, Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Kathryn A. Cunningham
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - George Saade
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Irina Burd
- Integrated Research Center for Fetal Medicine, Division of Maternal Fetal Medicine, Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Maged Costantine
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas, United States of America
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Geohagen BC, Vydyanathan A, Kosharskyy B, Shaparin N, Gavin T, LoPachin RM. Enolate-Forming Phloretin Pharmacophores: Hepatoprotection in an Experimental Model of Drug-Induced Toxicity. J Pharmacol Exp Ther 2016; 357:476-86. [PMID: 27029584 DOI: 10.1124/jpet.115.231001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 03/22/2016] [Indexed: 12/12/2022] Open
Abstract
Drug-induced toxicity is often mediated by electrophilic metabolites, such as bioactivation of acetaminophen (APAP) to N-acetyl-p-benzoquinone imine (NAPQI). We have shown that APAP hepatotoxicity can be prevented by 2-acetylcyclopentanone (2-ACP). This 1,3-dicarbonyl compound ionizes to form an enolate nucleophile that scavenges NAPQI and other electrophilic intermediates. In this study, we expanded our investigation of enolate-forming compounds to include analyses of the phloretin pharmacophores, 2',4',6'-trihydroxyacetophenone (THA) and phloroglucinol (PG). Studies in a mouse model of APAP overdose showed that THA provided hepatoprotection when given either by intraperitoneal injection or oral administration, whereas PG was hepatoprotective only when given intraperitoneally. Corroborative research characterized the molecular pharmacology (efficacy, potency) of 2-ACP, THA, and PG in APAP-exposed isolated mouse hepatocytes. For comparative purposes, N-acetylcysteine (NAC) cytoprotection was also evaluated. Measurements of multiple cell parameters (e.g., cell viability, mitochondrial membrane depolarization) indicated that THA and, to a lesser extent, PG provided concentration-dependent protection against APAP toxicity, which exceeded that of 2-ACP or NAC. The enolate-forming compounds and NAC truncated ongoing APAP exposure and thereby returned intoxicated hepatocytes toward normal viability. The superior ability of THA to protect is related to multifaceted modes of action that include metal ion chelation, free radical trapping, and scavenging of NAPQI and other soft electrophiles involved in oxidative stress. The rank order of potency for the tested cytoprotectants was consistent with that determined in a parallel mouse model. These data suggest that THA or a derivative might be useful in treating drug-induced toxicities and other conditions that involve electrophile-mediated pathogenesis.
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Affiliation(s)
- Brian C Geohagen
- Department of Anesthesiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York (B.C.G., A.V., B.K., N.S., R.M.L.); and Department of Chemistry, Iona College, New Rochelle, New York (T.G.)
| | - Amaresh Vydyanathan
- Department of Anesthesiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York (B.C.G., A.V., B.K., N.S., R.M.L.); and Department of Chemistry, Iona College, New Rochelle, New York (T.G.)
| | - Boleslav Kosharskyy
- Department of Anesthesiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York (B.C.G., A.V., B.K., N.S., R.M.L.); and Department of Chemistry, Iona College, New Rochelle, New York (T.G.)
| | - Naum Shaparin
- Department of Anesthesiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York (B.C.G., A.V., B.K., N.S., R.M.L.); and Department of Chemistry, Iona College, New Rochelle, New York (T.G.)
| | - Terrence Gavin
- Department of Anesthesiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York (B.C.G., A.V., B.K., N.S., R.M.L.); and Department of Chemistry, Iona College, New Rochelle, New York (T.G.)
| | - Richard M LoPachin
- Department of Anesthesiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York (B.C.G., A.V., B.K., N.S., R.M.L.); and Department of Chemistry, Iona College, New Rochelle, New York (T.G.)
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S-adenosyl-l-methionine protection of acetaminophen mediated oxidative stress and identification of hepatic 4-hydroxynonenal protein adducts by mass spectrometry. Toxicol Appl Pharmacol 2014; 281:174-84. [PMID: 25246065 DOI: 10.1016/j.taap.2014.08.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 08/21/2014] [Accepted: 08/22/2014] [Indexed: 01/01/2023]
Abstract
Acetaminophen (APAP) hepatotoxicity is protected by S-adenosyl-l-methionine (SAMe) treatment 1hour (h) after APAP in C57/Bl6 mice. This study examined protein carbonylation as well as mitochondrial and cytosolic protein adduction by 4-hydroxynonenal (4-HNE) using mass spectrometry (MS) analysis. Additional studies investigated the leakage of mitochondrial proteins and 4-HNE adduction of these proteins. Male C57/Bl6 mice (n=5/group) were divided into the following groups and treated as indicated: Veh (15ml/kg water, ip), SAMe (1.25mmol/kg, ip), APAP (250mg/kg), and SAMe given 1h after APAP (S+A). APAP toxicity was confirmed by an increase (p<0.05) in plasma ALT (U/l) and liver weight/10g body weight relative to the Veh, SAMe and S+A groups 4h following APAP treatment. SAMe administered 1h post-APAP partially corrected APAP hepatotoxicity as ALT and liver weight/10g body weights were lower in the S+A group compared the APAP group. APAP induced leakage of the mitochondrial protein, carbamoyl phosphate synthase-1 (CPS-1) into the cytosol and which was reduced in the S+A group. SAMe further reduced the extent of APAP mediated 4-HNE adduction of CPS-1. MS analysis of hepatic and mitochondrial subcellular fractions identified proteins from APAP treated mice. Site specific 4-HNE adducts were identified on mitochondrial proteins sarcosine dehydrogenase and carbamoyl phosphate synthase-1 (CPS-1). In summary, APAP is associated with 4-HNE adduction of proteins as identified by MS analysis and that CPS-1 leakage was greater in APAP treated mice. SAMe reduced the extent of 4-HNE adduction of proteins as well as leakage of CPS-1.
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Pro-oxidative effects of aggregated transthyretin in human Schwannoma cells. Neurotoxicology 2013; 39:109-13. [DOI: 10.1016/j.neuro.2013.08.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 08/01/2013] [Accepted: 08/13/2013] [Indexed: 01/21/2023]
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