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Mobaraki S, Nissen PH, Donskov F, Wozniak A, Van Herck Y, Coosemans L, van Nieuwenhuyse T, Lambrechts D, Bechter O, Baldewijns M, Roussel E, Laenen A, Beuselinck B. Cabozantinib Induces Isolated Hyperbilirubinemia in Renal Cell Carcinoma Patients carrying the UGT1A1*28 Polymorphism. Clin Genitourin Cancer 2024:102180. [PMID: 39155162 DOI: 10.1016/j.clgc.2024.102180] [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: 07/08/2024] [Accepted: 07/24/2024] [Indexed: 08/20/2024]
Abstract
BACKGROUND Genetic variants of UGT1A1, involved in glucuronidation and clearance of bilirubin, are associated with reduced bilirubin metabolization and drug-induced isolated hyperbilirubinemia. We studied the impact of the UGT1A1*28 polymorphism on drug-induced isolated hyperbilirubinemia in metastatic renal cell carcinoma patients treated with pazopanib, cabozantinib, and axitinib. METHODS We genotyped the UGT1A1*28 TA6/TA6-TA6/TA7-TA7/TA7 polymorphism and correlated with median baseline, on-treatment and peak bilirubin levels during therapy, incidence of grade-1- or -2 (G1/2)-hyperbilirubinemia and time-to-G1-hyperbilirubinemia. RESULTS Of the 66 patients treated with pazopanib, 29 received axitinib and 28 cabozantinib upon progression. Median baseline bilirubin was higher in TA7/TA7-carriers versus TA6/TA6+TA6/TA7-carriers at start of pazopanib (P < .0001), cabozantinib (P < .0001), and axitinib (P = .007). During pazopanib therapy, median bilirubin increased 1.4-fold in TA7/TA7+TA6/TA7-carriers but not in TA6/TA6-carriers. On cabozantinib, bilirubin increased 1.5-fold in TA7/TA7-carriers but not in TA6/TA6+TA6/TA7-carriers. Axitinib did not increase bilirubin in any genotype. Peak bilirubin in TA7/TA7- versus TA6/TA6+TA6/TA7-carriers was higher on pazopanib (P < .0001) or cabozantinib (P < .0001). With pazopanib, G1-hyperbilirubinemia occurred in 57% of TA7/TA7- and 12% of TA6/TA6+TA6/TA7-carriers (P = .0009) and G2-hyperbilirubinemia in 36% and 6% of the patients, respectively (P = .004). On cabozantinib, G1-hyperbilirubinemia occurred in 100% of TA7/TA7- and 5% of TA6/TA6+TA6/TA7-carriers (P < .0001) and G2-hyperbilirubinemia in 33% and 0% of the patients, respectively (P = .04). On axitinib, no correlation between the genotypes and G1/2-hyperbilirubinemia was observed. CONCLUSION We validate the previously described impact of the UGT1A1*28 polymorphism on isolated bilirubin increase on pazopanib. We report for the first time that cabozantinib also interferes with UGT1A1 and causes isolated bilirubin increase.
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Affiliation(s)
- Sajedeh Mobaraki
- Department of General Medical Oncology, University Hospitals Leuven, Leuven, Belgium
| | - Peter Henrik Nissen
- Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Frede Donskov
- Department of Oncology, University Hospital of Southern Denmark, Esbjerg, Denmark
| | | | - Yannick Van Herck
- Department of General Medical Oncology, University Hospitals Leuven, Leuven, Belgium
| | - Lina Coosemans
- Department of General Medical Oncology, University Hospitals Leuven, Leuven, Belgium
| | | | - Diether Lambrechts
- Laboratory for Translational Genetics, Department of Human Genetics, VIB Center for Cancer Biology, KU Leuven, Leuven, Belgium
| | - Oliver Bechter
- Department of General Medical Oncology, University Hospitals Leuven, Leuven, Belgium
| | | | - Eduard Roussel
- Department of Urology, University Hospitals Leuven, Leuven, Belgium
| | | | - Benoit Beuselinck
- Department of General Medical Oncology, University Hospitals Leuven, Leuven, Belgium.
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González-Padilla D, Camara MD, Lauschke VM, Zhou Y. Population-scale variability of the human UDP-glycosyltransferase gene family. J Genet Genomics 2024:S1673-8527(24)00161-9. [PMID: 38969258 DOI: 10.1016/j.jgg.2024.06.018] [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: 05/12/2024] [Revised: 06/10/2024] [Accepted: 06/26/2024] [Indexed: 07/07/2024]
Abstract
Human UDP-glycosyltransferases (UGTs) are responsible for the glucuronidation of a wide variety of endogenous substrates and commonly prescribed drugs. Different genetic polymorphisms in UGT genes are implicated in interindividual differences in drug response and cancer risk. However, the genetic complexity beyond these variants has not been comprehensively assessed. We here leveraged whole-exome and whole-genome sequencing data from 141,456 unrelated individuals across 7 major human populations to provide a comprehensive profile of genetic variability across the human UGT gene family. Overall, 9666 exonic variants were observed of which 98.9% were rare. To interpret the functional impact of UGT missense variants, we developed a gene family-specific variant effect predictor. This algorithm identified a total of 1208 deleterious variants, most of which were found in African and South Asian populations. Structural analysis corroborated the predicted effects for multiple variations in substrate binding sites. Combined, our analyses provide a systematic overview of UGT variability, which can yield insights into interindividual differences in phase 2 metabolism and facilitate the translation of sequencing data into personalized predictions of UGT substrate disposition.
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Affiliation(s)
| | - Mahamadou D Camara
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden; Center for Molecular Medicine, Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - Volker M Lauschke
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden; Center for Molecular Medicine, Karolinska Institutet and University Hospital, Stockholm, Sweden; Dr Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany; University of Tübingen, Tübingen, Germany.
| | - Yitian Zhou
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden; Center for Molecular Medicine, Karolinska Institutet and University Hospital, Stockholm, Sweden.
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3
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Abu-Awwad SA, Abu-Awwad A, Suba MI, Lazureanu VE, Bolovan AD, Rosca O, Turaiche MM, Benea AT, Hogea B. Evaluating Hepatotoxicity: A Comparative Analysis of New Generation versus Historical Antiretroviral Agents. Infect Dis Rep 2024; 16:423-434. [PMID: 38804441 PMCID: PMC11130917 DOI: 10.3390/idr16030031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 04/19/2024] [Accepted: 04/23/2024] [Indexed: 05/29/2024] Open
Abstract
(1) Background: Since the advent of zidovudine in 1987, antiretroviral therapy has undergone significant evolution, marked by the introduction of 34 antiretroviral drugs and 24 fixed-dose combinations. Despite these advances, hepatotoxicity remains a formidable challenge, influencing morbidity, mortality, and treatment adherence in HIV-infected patients. This study aims to compare the hepatotoxic effects of latest-generation antiretroviral medications with those of older-generation therapies, assessing their long-term impact on liver health in HIV patients. (2) Methods: This retrospective study analyzed data from 304 HIV patients treated with either latest-generation or older-generation antiretroviral drugs over four years. Patients were monitored for hepatotoxicity through liver function tests at diagnosis, six months, and one-year post-treatment initiation. (3) Results: Initial and six-month liver function tests showed no significant differences between the two groups. However, at one-year post-treatment, patients on latest-generation antiretrovirals exhibited significant improvements in ALT, AST, and ALP levels, suggesting a better safety profile regarding hepatotoxicity. Additionally, a significantly lower incidence of splenomegaly was observed in patients treated with newer medications. (4) Conclusions: The findings suggest that the latest-generation antiretroviral medications may offer a safer profile in terms of hepatotoxicity compared to older therapies, with potential benefits for long-term liver health. This study underscores the importance of continuous monitoring and further research to optimize ART strategies, ensuring improved patient outcomes and quality of life for individuals living with HIV.
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Affiliation(s)
- Simona-Alina Abu-Awwad
- Ist Clinic of Obstetrics and Gynecology, “Pius Brinzeu” County Clinical Emergency Hospital, 300723 Timisoara, Romania;
- Department of Obstetrics and Gynecology, Faculty of Medicine, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Ahmed Abu-Awwad
- Department XV—Discipline of Orthopedics-Traumatology, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (A.A.-A.); (B.H.)
- Research Center University Professor Doctor Teodor Sora, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Madalina-Ianca Suba
- Doctoral School, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square, No. 2, 300041 Timisoara, Romania; (A.-D.B.); (A.-T.B.)
- Dr. Victor Babes, Infectious Diseases and Pneumophthisiology Hospital Timisoara, 300310 Timisoara, Romania
| | - Voichita Elena Lazureanu
- Department XIII, Discipline of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square 2, 300041 Timisoara, Romania; (V.E.L.); (O.R.)
| | - Andrei-Daniel Bolovan
- Doctoral School, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square, No. 2, 300041 Timisoara, Romania; (A.-D.B.); (A.-T.B.)
- Department XV: Orthopedics-Traumatology, “Pius Brinzeu” Emergency Clinical County Hospital, Bld Liviu Rebreanu, No. 156, 300723 Timisoara, Romania
| | - Ovidiu Rosca
- Department XIII, Discipline of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square 2, 300041 Timisoara, Romania; (V.E.L.); (O.R.)
| | - Mirela-Mădălina Turaiche
- Methodological and Infectious Diseases Research Center, Department of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania;
| | - Adela-Teodora Benea
- Doctoral School, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square, No. 2, 300041 Timisoara, Romania; (A.-D.B.); (A.-T.B.)
- Dr. Victor Babes, Infectious Diseases and Pneumophthisiology Hospital Timisoara, 300310 Timisoara, Romania
| | - Bogdan Hogea
- Department XV—Discipline of Orthopedics-Traumatology, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (A.A.-A.); (B.H.)
- Research Center University Professor Doctor Teodor Sora, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
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Kostrubsky V, Liu Y, Muste C, Gu C, Kirkland M, Nishimura N, Hasegawa K, Hasumi K, Yuan L. Preclinical safety, toxicokinetics and metabolism of BIIB131, a novel prothrombolytic agent for acute stroke. Regul Toxicol Pharmacol 2023; 145:105498. [PMID: 37778433 DOI: 10.1016/j.yrtph.2023.105498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/23/2023] [Accepted: 09/28/2023] [Indexed: 10/03/2023]
Abstract
BIIB131, a small molecule, is currently in Phase 2 for the treatment of acute ischemic stroke. Safety and metabolism of BIIB131 were evaluated following intravenous administration to rats and monkeys. Exposure increased dose-proportionally in rats up to 60 mg/kg and more than dose-proportionally in monkeys at greater than 10 mg/kg accompanied by prolonged half-life and safety findings. The BIIB131 was poorly metabolized in microsomes with no inhibition of CYPs. BIIB131-glucuronide, formed by UGT1A1, accounted for 21.5% metabolism in human hepatocytes and 28-40% in rat bile. In rats, excretion was primarily via the bile. BIIB131 inhibited the hERG and Nav1.5 cardiac channels by 39% but showed no effect on cardiovascular parameters in monkeys. Toxicology findings were limited to reversable hematuria, changes in urinary parameters and local effects. A MTD of 30 mg/kg was established in monkeys, the most sensitive species, at total plasma Cmax and AUC of 6- and 14-fold, respectively, greater than the NOAEL. The Phase 1 study started with intravenous 0.05 mg/kg and ascended to 6.0 mg/kg which corresponded to safety margins of 147- to 0.9-fold (for Cmax) within the linear drug exposure. Thus, the preclinical profile of BIIB131 has been appropriately characterized and supports its further clinical development.
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Affiliation(s)
- Vick Kostrubsky
- Nonclinical Safety Science, Biogen, Inc., 225 Binney Street, Cambridge, MA, 02142, USA.
| | - Ying Liu
- Drug Metabolism and Pharmacokinetics, Biogen, Inc., 225 Binney Street, Cambridge, MA, 02142, USA
| | - Cathy Muste
- Drug Metabolism and Pharmacokinetics, Biogen, Inc., 225 Binney Street, Cambridge, MA, 02142, USA
| | - Chungang Gu
- Drug Metabolism and Pharmacokinetics, Biogen, Inc., 225 Binney Street, Cambridge, MA, 02142, USA
| | - Melissa Kirkland
- Nonclinical Safety Science, Biogen, Inc., 225 Binney Street, Cambridge, MA, 02142, USA
| | - Naoko Nishimura
- Division of Research and Development, TMS Co., Ltd., Tokyo, Japan
| | - Keiko Hasegawa
- Division of Research and Development, TMS Co., Ltd., Tokyo, Japan
| | - Keiji Hasumi
- Division of Research and Development, TMS Co., Ltd., Tokyo, Japan; Department of Applied Biological Science, Tokyo University of Agriculture and Technology, Tokyo, 183-8509, Japan
| | - Long Yuan
- Drug Metabolism and Pharmacokinetics, Biogen, Inc., 225 Binney Street, Cambridge, MA, 02142, USA
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5
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Healton SE, Lawrence DG, Elkins NJ, Schwartz L, Hametz PA. New-Onset Jaundice in an 11-month-old Boy. Pediatr Rev 2023; 44:706-709. [PMID: 38036439 DOI: 10.1542/pir.2021-005158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
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6
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Ji C. Molecular Factors and Pathways of Hepatotoxicity Associated with HIV/SARS-CoV-2 Protease Inhibitors. Int J Mol Sci 2023; 24:ijms24097938. [PMID: 37175645 PMCID: PMC10178330 DOI: 10.3390/ijms24097938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 04/21/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
Antiviral protease inhibitors are peptidomimetic molecules that block the active catalytic center of viral proteases and, thereby, prevent the cleavage of viral polyprotein precursors into maturation. They continue to be a key class of antiviral drugs that can be used either as boosters for other classes of antivirals or as major components of current regimens in therapies for the treatment of infections with human immunodeficiency virus (HIV) and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, sustained/lifelong treatment with the drugs or drugs combined with other substance(s) often leads to severe hepatic side effects such as lipid abnormalities, insulin resistance, and hepatotoxicity. The underlying pathogenic mechanisms are not fully known and are under continuous investigation. This review focuses on the general as well as specific molecular mechanisms of the protease inhibitor-induced hepatotoxicity involving transporter proteins, apolipoprotein B, cytochrome P450 isozymes, insulin-receptor substrate 1, Akt/PKB signaling, lipogenic factors, UDP-glucuronosyltransferase, pregnane X receptor, hepatocyte nuclear factor 4α, reactive oxygen species, inflammatory cytokines, off-target proteases, and small GTPase Rab proteins related to ER-Golgi trafficking, organelle stress, and liver injury. Potential pharmaceutical/therapeutic solutions to antiviral drug-induced hepatic side effects are also discussed.
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Affiliation(s)
- Cheng Ji
- Research Center for Liver Disease, GI/Liver Division, Department of Medicine, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA 90089, USA
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7
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Pang HL, Zhu GH, Zhou QH, Ai CZ, Zhu YD, Wang P, Dou TY, Xia YL, Ma H, Ge GB. Discovery and Characterization of the Key Constituents in Ginkgo biloba Leaf Extract With Potent Inhibitory Effects on Human UDP-Glucuronosyltransferase 1A1. Front Pharmacol 2022; 13:815235. [PMID: 35264954 PMCID: PMC8899474 DOI: 10.3389/fphar.2022.815235] [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: 11/15/2021] [Accepted: 01/24/2022] [Indexed: 12/04/2022] Open
Abstract
Human UDP-glucuronosyltransferase 1A1 (hUGT1A1) is one of the most essential phase II enzymes in humans. Dysfunction or strong inhibition of hUGT1A1 may result in hyperbilirubinaemia and clinically relevant drug/herb-drug interactions (DDIs/HDIs). Recently, a high-throughput fluorescence-based assay was constructed by us to find the compounds/herbal extracts with strong inhibition against intracellular hUGT1A1. Following screening of over one hundred of herbal products, the extract of Ginkgo biloba leaves (GBL) displayed the most potent hUGT1A1 inhibition in HeLa-UGT1A1 cells (Hela cells overexpressed hUGT1A1). Further investigations demonstrated that four biflavones including bilobetin, isoginkgetin, sciadopitysin and ginkgetin, are key constituents responsible for hUGT1A1 inhibition in living cells. These biflavones potently inhibit hUGT1A1 in both human liver microsomes (HLM) and living cells, with the IC50 values ranging from 0.075 to 0.41 μM in living cells. Inhibition kinetic analyses and docking simulations suggested that four tested biflavones potently inhibit hUGT1A1-catalyzed NHPN-O-glucuronidation in HLM via a mixed inhibition manner, showing the Ki values ranging from 0.07 to 0.74 μM. Collectively, our findings uncover the key constituents in GBL responsible for hUGT1A1 inhibition and decipher their inhibitory mechanisms against hUGT1A1, which will be very helpful for guiding the rational use of GBL-related herbal products in clinical settings.
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Affiliation(s)
- Hui-Lin Pang
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Guang-Hao Zhu
- Shanghai Frontiers Science Center for Chinese Medicine Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shangha, China
| | - Qi-Hang Zhou
- Shanghai Frontiers Science Center for Chinese Medicine Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shangha, China
| | - Chun-Zhi Ai
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, Guilin, China
| | - Ya-Di Zhu
- Shanghai Frontiers Science Center for Chinese Medicine Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shangha, China
| | - Ping Wang
- Shanghai Frontiers Science Center for Chinese Medicine Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shangha, China
| | - Tong-Yi Dou
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Yang-Liu Xia
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Hong Ma
- Shanghai Research Institute of Acupuncture and Meridian, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Guang-Bo Ge
- Shanghai Frontiers Science Center for Chinese Medicine Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shangha, China
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8
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Abstract
Abdominal pain in an immunocompromised patient represents a common clinical scenario that may have uncommon causes. Evaluation relies first on identifying the immunocompromise, whether due to congenital immunodeficiencies, malignancy, hematopoietic stem cell transplant, solid organ transplant, or human immunodeficiency virus/acquired immunodeficiency syndrome. Based on this determination, the emergency physician may then build a focused differential of pathophysiologic possibilities. Careful evaluation is necessary given the absence of classic physical examination findings, and liberal use of laboratory and cross-sectional imaging is prudent. Conservative evaluation and disposition of these high-risk patients is important to consider.
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Affiliation(s)
- Carmen Wolfe
- Department of Emergency Medicine, Vanderbilt University Medical Center, 1313 21st Avenue South, Oxford House 703, Nashville, TN 37232, USA.
| | - Nicole McCoin
- Department of Emergency Medicine, Ochsner Medical Center, 1514 Jefferson Highway, New Orleans, LA 70121, USA
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Yu ZJ, Mosher EP, Bumpus NN. Pharmacogenomics of Antiretroviral Drug Metabolism and Transport. Annu Rev Pharmacol Toxicol 2020; 61:565-585. [PMID: 32960701 DOI: 10.1146/annurev-pharmtox-021320-111248] [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: 01/11/2023]
Abstract
Antiretroviral therapy has markedly reduced morbidity and mortality for persons living with human immunodeficiency virus (HIV). Individual tailoring of antiretroviral regimens has the potential to further improve the long-term management of HIV through the mitigation of treatment failure and drug-induced toxicities. While the mechanisms underlying anti-HIV drug adverse outcomes are multifactorial, the application of drug-specific pharmacogenomic knowledge is required in order to move toward the personalization of HIV therapy. Thus, detailed understanding of the metabolism and transport of antiretrovirals and the influence of genetics on these pathways is important. To this end, this review provides an up-to-date overview of the metabolism of anti-HIV therapeutics and the impact of genetic variation in drug metabolism and transport on the treatment of HIV. Future perspectives on and current challenges in pursuing personalized HIV treatment are also discussed.
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Affiliation(s)
- Zaikuan J Yu
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA;
| | - Eric P Mosher
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA;
| | - Namandjé N Bumpus
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA;
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10
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Marin JJG, Serrano MA, Monte MJ, Sanchez-Martin A, Temprano AG, Briz O, Romero MR. Role of Genetic Variations in the Hepatic Handling of Drugs. Int J Mol Sci 2020; 21:E2884. [PMID: 32326111 PMCID: PMC7215464 DOI: 10.3390/ijms21082884] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/09/2020] [Accepted: 04/17/2020] [Indexed: 12/18/2022] Open
Abstract
The liver plays a pivotal role in drug handling due to its contribution to the processes of detoxification (phases 0 to 3). In addition, the liver is also an essential organ for the mechanism of action of many families of drugs, such as cholesterol-lowering, antidiabetic, antiviral, anticoagulant, and anticancer agents. Accordingly, the presence of genetic variants affecting a high number of genes expressed in hepatocytes has a critical clinical impact. The present review is not an exhaustive list but a general overview of the most relevant variants of genes involved in detoxification phases. The available information highlights the importance of defining the genomic profile responsible for the hepatic handling of drugs in many ways, such as (i) impaired uptake, (ii) enhanced export, (iii) altered metabolism due to decreased activation of prodrugs or enhanced inactivation of active compounds, and (iv) altered molecular targets located in the liver due to genetic changes or activation/downregulation of alternative/compensatory pathways. In conclusion, the advance in this field of modern pharmacology, which allows one to predict the outcome of the treatments and to develop more effective and selective agents able to overcome the lack of effect associated with the existence of some genetic variants, is required to step forward toward a more personalized medicine.
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Affiliation(s)
- Jose J. G. Marin
- HEVEFARM Group, Center for the Study of Liver and Gastrointestinal Diseases (CIBERehd), Carlos III National Institute of Health, University of Salamanca, IBSAL, 37007 Salamanca, Spain; (M.A.S.); (M.J.M.); (A.S.-M.); (A.G.T.); (O.B.); (M.R.R.)
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11
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Lv X, Xia Y, Finel M, Wu J, Ge G, Yang L. Recent progress and challenges in screening and characterization of UGT1A1 inhibitors. Acta Pharm Sin B 2019; 9:258-278. [PMID: 30972276 PMCID: PMC6437557 DOI: 10.1016/j.apsb.2018.09.005] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 08/16/2018] [Accepted: 08/27/2018] [Indexed: 02/07/2023] Open
Abstract
Uridine-diphosphate glucuronosyltransferase 1A1 (UGT1A1) is an important conjugative enzyme in mammals that is responsible for the conjugation and detoxification of both endogenous and xenobiotic compounds. Strong inhibition of UGT1A1 may trigger adverse drug/herb-drug interactions, or result in metabolic disorders of endobiotic metabolism. Therefore, both the US Food and Drug Administration (FDA) and the European Medicines Agency (EMA) have recommended assaying the inhibitory potential of drugs under development on the human UGT1A1 prior to approval. This review focuses on the significance, progress and challenges in discovery and characterization of UGT1A1 inhibitors. Recent advances in the development of UGT1A1 probes and their application for screening UGT1A1 inhibitors are summarized and discussed in this review for the first time. Furthermore, a long list of UGT1A1 inhibitors, including information on their inhibition potency, inhibition mode, and affinity, has been prepared and analyzed. Challenges and future directions in this field are highlighted in the final section. The information and knowledge that are presented in this review provide guidance for rational use of drugs/herbs in order to avoid the occurrence of adverse effects via UGT1A1 inhibition, as well as presenting methods for rapid screening and characterization of UGT1A1 inhibitors and for facilitating investigations on UGT1A1-ligand interactions.
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12
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Liu XY, Lv X, Wang P, Ai CZ, Zhou QH, Finel M, Fan B, Cao YF, Tang H, Ge GB. Inhibition of UGT1A1 by natural and synthetic flavonoids. Int J Biol Macromol 2018; 126:653-661. [PMID: 30594625 DOI: 10.1016/j.ijbiomac.2018.12.171] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 12/14/2018] [Accepted: 12/18/2018] [Indexed: 01/27/2023]
Abstract
Flavonoids are widely distributed phytochemicals in vegetables, fruits and medicinal plants. Recent studies demonstrate that some natural flavonoids are potent inhibitors of the human UDP-glucuronosyltransferase 1A1 (UGT1A1), a key enzyme in detoxification of endogenous harmful compounds such as bilirubin. In this study, the inhibitory effects of 56 natural and synthetic flavonoids on UGT1A1 were assayed, while the structure-inhibition relationships of flavonoids as UGT1A1 inhibitors were investigated. The results demonstrated that the C-3 and C-7 hydroxyl groups on the flavone skeleton would enhance UGT1A1 inhibition, while flavonoid glycosides displayed weaker inhibitory effects than their corresponding aglycones. Further investigation on inhibition kinetics of two strong flavonoid-type UGT1A1 inhibitors, acacetin and kaempferol, yielded interesting results. Both flavonoids were competitive inhibitors against UGT1A1-mediated NHPN-O-glucuronidation, but were mixed and competitive inhibitors toward UGT1A1-mediated NCHN-O-glucuronidation, respectively. Furthermore, docking simulations showed that the binding areas of NHPN, kaempferol and acacetin on UGT1A1 were highly overlapping, and convergence with the binding area of bilirubin within UGT1A1. In summary, detailed structure-inhibition relationships of flavonoids as UGT1A1 inhibitors were investigated carefully and the findings shed new light on the interactions between flavonoids and UGT1A1, and will contribute considerably to the development of flavonoid-type drugs without strong UGT1A1 inhibition.
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Affiliation(s)
- Xin-Yu Liu
- Translational Medicine Center, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, & Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 200473, China; Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Pharmacy School of Shihezi University, Xinjiang 832000, China
| | - Xia Lv
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, College of Life Science, Dalian Minzu University, Dalian 116600, China
| | - Ping Wang
- Translational Medicine Center, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, & Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 200473, China
| | - Chun-Zhi Ai
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong 518060, China
| | - Qi-Hang Zhou
- Translational Medicine Center, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, & Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 200473, China
| | - Moshe Finel
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, 00014, Finland
| | - Bin Fan
- Translational Medicine Center, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, & Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 200473, China
| | - Yun-Feng Cao
- Key Laboratory of Contraceptives and Devices Research (NPFPC), Shanghai Engineering Research Center of Reproductive Health Drug and Devices, Shanghai Institute of Planned Parenthood Research, Shanghai 200032, China
| | - Hui Tang
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Pharmacy School of Shihezi University, Xinjiang 832000, China.
| | - Guang-Bo Ge
- Translational Medicine Center, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, & Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 200473, China.
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13
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Abstract
The UGT1A1 enzyme is involved in the metabolism of bilirubin and numerous medications. Unconjugated hyperbilirubinemia, commonly presented as Gilbert syndrome (GS), is a result of decreased activity of the UGT1A1 enzyme, variable number of TA repeats in the promoter of the UGT1A1 gene affects enzyme activity. Seven and eight TA repeats cause a decrease of UGT1A1 activity and risk GS alleles, while six TA repeats contribute to normal UGT1A1 activity and non-risk GS allele. Also, the UGT1A1 (TA)n promoter genotype is recognized as a clinically relevant pharmacogenetic marker. The aim of this study was to assess diagnostic value of UGT1A1 (TA)n promoter genotyping in pediatric GS patients. Correlation of the UGT1A1 (TA)n genotypes and level of unconjugated bilirubin at diagnosis and after hypocaloric and phenobarbitone tests in these patients was analyzed. Another aim of the study was to assess pharmacogenetic potential of UGT1A1 (TA)n variants in Serbia. Fifty-one pediatric GS patients and 100 healthy individuals were genotyped using different methodologies, polymerase chain reaction (PCR) followed by acrylamide electrophoresis, fragment length analysis and/or DNA sequencing. Concordance of the UGT1A1 (TA)n promoter risk GS genotypes with GS was found in 80.0% of patients. Therefore, UGT1A1 (TA)n promoter genotyping is not a reliable genetic test for GS, but it is useful for differential diagnosis of diseases associated with hyperbilirubinemia. Level of bilirubin in pediatric GS patients at diagnosis was UGT1A1 (TA)n promoter genotype-dependent. We found that the frequency of pharmacogenetic relevant UGT1A1 (TA)n promoter genotypes was 63.0%, pointing out that UGT1A1 (TA)n promoter genotyping could be recommended for preemptive pharmacogenetic testing in Serbia.
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14
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Lv X, Zhang JB, Hou J, Dou TY, Ge GB, Hu WZ, Yang L. Chemical Probes for Human UDP-Glucuronosyltransferases: A Comprehensive Review. Biotechnol J 2018; 14:e1800002. [PMID: 30192065 DOI: 10.1002/biot.201800002] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 08/19/2018] [Indexed: 01/11/2023]
Abstract
UGTs play crucial roles in the metabolism and detoxification of both endogenous and xenobiotic compounds. The key roles of UGTs in human health have garnered great interest in the design and development of specific probes for human UGTs. However, in contrast to other human enzymes, the probe substrates for human UGTs are rarely reported, owing to the highly overlapping substrate specificities of UGTs and the lack of the integrated crystal structures of UGTs. Over the past decades, many efforts are made to develop specific probe substrates for UGTs and use them in both basic research and drug discovery. This review focuses on recent progress in the development of probe substrates for UGTs and their biomedical applications. A long list of chemical probes for UGTs, including non-fluorescent and fluorescent probes along with their structural information and kinetic parameters, are prepared and analyzed. Additionally, challenges and future directions in this field are highlighted in the final section. All information and knowledge presented in this review provide practical tools/methods for measuring UGT activities in complex biological samples, which will be very helpful for rapid screening and characterization of UGT modulators, and for exploring the relevance of UGT enzymes to human diseases.
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Affiliation(s)
- Xia Lv
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, College of Life Science, Dalian Minzu University, Dalian, 116600, China.,Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | | | - Jie Hou
- Dalian Medical University, Dalian, 116044, China
| | - Tong-Yi Dou
- School of Life Science and Medicine, Dalian University of Technology, Panjin, 124221, China
| | - Guang-Bo Ge
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Wen-Zhong Hu
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, College of Life Science, Dalian Minzu University, Dalian, 116600, China
| | - Ling Yang
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
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15
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Xia YL, Dou TY, Lv X, Ge GB. In vitro characterization of the glucuronidation pathways of licochalcone A mediated by human UDP-glucuronosyltransferases. Xenobiotica 2018; 49:671-677. [DOI: 10.1080/00498254.2018.1495345] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yang-Liu Xia
- School of Life Science and Medicine, Dalian University of Technology, Panjin, China
| | - Tong-Yi Dou
- School of Life Science and Medicine, Dalian University of Technology, Panjin, China
| | - Xia Lv
- College of Life Science, Dalian Minzu University, Dalian, China
| | - Guang-Bo Ge
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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16
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Yamamoto K, Yano I. Genetic polymorphisms associated with adverse reactions of molecular-targeted therapies in renal cell carcinoma. Med Oncol 2018; 35:16. [PMID: 29302760 DOI: 10.1007/s12032-017-1077-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 12/27/2017] [Indexed: 12/28/2022]
Abstract
The prognosis of patients with metastatic renal cell carcinoma has drastically improved due to the development of molecular-targeted drugs and their use in clinical practice. However, these drugs cause some diverse adverse reactions in patients and sometimes affect clinical outcomes of cancer therapy. Therefore, predictive markers are necessary to avoid severe adverse reactions, to establish novel and effective prevention methods, and to improve treatment outcomes. Some genetic factors involved in these adverse reactions have been reported; however, perspectives on each adverse response have not been integrated yet. In this review, genetic polymorphisms relating to molecular-targeted therapy-induced adverse reactions in patients with renal cell carcinoma are summarized in the points of pharmacokinetic and pharmacodynamic mechanisms. We also discuss about the relationship between systemic drug exposure and adverse drug reactions.
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Affiliation(s)
- Kazuhiro Yamamoto
- Department of Pharmacy, Kobe University Hospital, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
| | - Ikuko Yano
- Department of Pharmacy, Kobe University Hospital, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
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17
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Zhang XX, Cao YF, Wang LX, Yuan XL, Fang ZZ. Inhibitory effects of tanshinones towards the catalytic activity of UDP-glucuronosyltransferases (UGTs). PHARMACEUTICAL BIOLOGY 2017; 55:1703-1709. [PMID: 28466663 PMCID: PMC6130658 DOI: 10.3109/13880209.2015.1045621] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 01/27/2015] [Accepted: 03/07/2015] [Indexed: 06/07/2023]
Abstract
CONTENTS Danshen is a popular herb employed to treat cardiovascular and cerebrovascular diseases worldwide. Danshen-drug interaction has not been well studied. OBJECTIVE The inhibitory effects of four major tanshinones (tanshinone I, tanshinone IIA, cryptotanshinone, and dihydrotanshinone I) on UDP-glucuronosyltransferases (UGTs) isoforms were determined to better understand the mechanism of danshen-prescription drugs interaction. MATERIALS AND METHODS In vitro recombinant UGTs-catalyzed 4-methylumbelliferone (4-MU) glucuronidation reaction was employed. Tanshinones (100 μM) was used to perform the initial screening of inhibition capability. High-performance liquid chromatography (HPLC) was used to separate 4-MU and its glucuronide. In vitro-in vivo extrapolation (IV-IVE) was employed to predict in vivo inhibition situation. RESULTS Cryptotanshinone inhibited UGT1A7 and UGT1A9 with IC50 values of 1.91 ± 0.27 and 0.27 ± 0.03 μM, respectively. Dihydrotanshinone I inhibited UGT1A9-catalyzed 4-MU glucuronidation reaction with the IC50 value of 0.72 ± 0.04 μM. The inhibition of cryptotanshinone towards UGT1A7 and UGT1A9 was best fit to competitive inhibition type, and UGT1A9 was non-competitively inhibited by dihydrotanshinone I. Using in vitro inhibition kinetic parameters (Ki) and in vivo maximum plasma concentration (Cmax) of cryptotanshinone and dihydrotanshinone I, the change of area-under-the-concentration-time curve (AUC) was predicted to be 0.4-4.2%, 3.7-56.3%, and 0.6-6.4% induced by cryptotanshinone and dihydrotanshinone inhibition towards UGT1A7 and UGT1A9, respectively. DISCUSSION AND CONCLUSION The inhibitory effects of tanshinones towards important UGT isoforms were evaluated in the present study, which provide helpful information for exploring the mechanism of danshen-clinical drugs interaction.
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Affiliation(s)
- Xu-Xin Zhang
- Affiliated Zhongshan Hospital of Dalian University, Dalian, China
- Joint Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences and The Affiliated Zhongshan Hospital of Dalian University, Zhongshan District, Dalian, China
| | - Yun-Feng Cao
- Joint Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences and The Affiliated Zhongshan Hospital of Dalian University, Zhongshan District, Dalian, China
- Key Laboratory of Contraceptives and Devices Research (NPFPC), Shanghai Engineer and Technology Research Center of Reproductive Health Drug and Devices, Shanghai Institute of Planned Parenthood Research, Shanghai, China
- Joint Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences and First Affiliated Hospital of Liaoning Medical University, Dalian, China
| | - Li-Xuan Wang
- Joint Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences and The Affiliated Zhongshan Hospital of Dalian University, Zhongshan District, Dalian, China
- Joint Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences and First Affiliated Hospital of Liaoning Medical University, Dalian, China
| | - Xiao-Lin Yuan
- Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Zhong-Ze Fang
- Joint Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences and The Affiliated Zhongshan Hospital of Dalian University, Zhongshan District, Dalian, China
- Joint Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences and First Affiliated Hospital of Liaoning Medical University, Dalian, China
- Department of Toxicology, School of Public Health, Tianjin Medical University, Heping District, Tianjin, China
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18
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Church RJ, Watkins PB. In silico modeling to optimize interpretation of liver safety biomarkers in clinical trials. Exp Biol Med (Maywood) 2017; 243:300-307. [PMID: 29096561 DOI: 10.1177/1535370217740853] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Current strategies to delineate the risk of serious drug-induced liver injury associated with drugs rely on assessment of serum biomarkers that have been utilized for many decades. In particular, serum alanine aminotransferase and total bilirubin levels are typically used to assess hepatic integrity and function, respectively. Parallel measurement of these biomarkers is utilized to identify patients with drug-induced hepatocellular jaundice ("Hy's Law" cases) which carries at least a 10% risk of death or liver transplant. However, current guidelines regarding use of these biomarkers in clinical trials can put study subjects at risk for life-threatening drug-induced liver injury, or result in over estimation of risk that may halt development of safe drugs. In addition, pharmaceutical companies are increasingly being required to conduct large and expensive clinical trials to "defend" the safety of their new drug when results from smaller trials are inconclusive. Innovative approaches and some novel biomarkers are now being employed to maximize the value of traditional biochemical tests. DILIsym®, a product of the DILIsim Initiative, utilizes serial serum alanine aminotransferase values, along with serum biomarkers of apoptosis vs necrosis, to estimate percent hepatocyte loss and total bilirubin elevations resulting from loss of global liver function. The results from analyses conducted with DILIsym have been reported to the FDA to support the safety of entolimod and cimaglermin alfa after elevations in serum alanine aminotransferase and/or bilirubin halted clinical development. DILIsym can also be utilized to determine whether rises in serum conjugated and unconjugated bilirubin are consistent with mechanisms unrelated to toxicity ( i.e. inhibition of bilirubin transport or metabolism). In silico modeling of traditional and novel drug-induced liver injury biomarker data obtained in clinical trials may be the most efficient and accurate way to define the liver safety profile of new drug candidates. Impact statement Blood tests used in clinical trials to detect and monitor drug-induced liver injury (DILI) have not changed in half a century. These tests have several shortcomings: their use has not completely prevented clinical trial participants from risk of life-threatening DILI, they can give false positive results that halt the development of safe drug candidates, and they can create liver safety "concerns" that require large additional clinical trials to accurately define DILI risk. This review highlights the use of in silico modeling to improve interpretation of the blood tests currently available to detect DILI risk in new drug candidates. This approach is increasingly being applied in clinical trials to more precisely assess the degree of hepatocellular injury and its functional impact. This new approach holds the promise of more accurately defining DILI risk in smaller clinical trials.
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Affiliation(s)
- Rachel J Church
- 1 UNC Institute for Drug Safety Sciences, 2331 Research Triangle Park , NC 27709, USA.,2 Division of Pharmacotherapy and Experimental Therapeutics, 15521 UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill , NC 27599, USA
| | - Paul B Watkins
- 1 UNC Institute for Drug Safety Sciences, 2331 Research Triangle Park , NC 27709, USA.,2 Division of Pharmacotherapy and Experimental Therapeutics, 15521 UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill , NC 27599, USA
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19
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Leong J, Serrano MS. A Case of Acquired Gilbert's Syndrome. Clin Pediatr (Phila) 2017; 56:1164-1166. [PMID: 27681308 DOI: 10.1177/0009922816668632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Jonathan Leong
- 1 University of Queensland School of Medicine, Brisbane, Queensland, Australia.,2 Ochsner Children's Health Center, New Orleans, LA, USA
| | - Maria-Stella Serrano
- 1 University of Queensland School of Medicine, Brisbane, Queensland, Australia.,2 Ochsner Children's Health Center, New Orleans, LA, USA
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20
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Xie H, Wu J, Liu D, Liu M, Zhang H, Huang S, Xiong Y, Xia C. In vitro inhibition of UGT1A3, UGT1A4 by ursolic acid and oleanolic acid and drug-drug interaction risk prediction. Xenobiotica 2017; 47:785-792. [PMID: 27600106 DOI: 10.1080/00498254.2016.1234087] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 09/05/2016] [Accepted: 09/05/2016] [Indexed: 12/13/2022]
Abstract
1. Ursolic acid (UA) and oleanolic acid (OA) may have important activity relevant to health and disease prevention. Thus, we studied the activity of UA and OA on UDP-glucuronosyltransferases (UGTs) and used trifluoperazine as a probe substrate to test UGT1A4 activity. Recombinant UGT-catalyzed 4-methylumbelliferone (4-MU) glucuronidation was used as a probe reaction for other UGT isoforms. 2. UA and OA inhibited UGT1A3 and UGT1A4 activity but did not inhibit other tested UGT isoforms. 3. UA-mediated inhibition of UGT1A3 catalyzed 4-MU-β-d-glucuronidation was via competitive inhibition (IC50 0.391 ± 0.013 μM; Ki 0.185 ± 0.015 μM). UA also competitively inhibited UGT1A4-mediated trifluoperazine-N-glucuronidation (IC50 2.651 ± 0.201 μM; Ki 1.334 ± 0.146 μM). 4. OA offered mixed inhibition of UGT1A3-mediated 4-MU-β-d-glucuronidation (IC50 0.336 ± 0.013 μM; Ki 0.176 ± 0.007 μM) and competitively inhibited UGT1A4-mediated trifluoperazine-N-glucuronidation (IC50 5.468 ± 0.697 μM; Ki 6.298 ± 0.891 μM). 5. Co-administering OA or UA with drugs or products that are substrates of UGT1A3 or UGT1A4 may produce drug-mediated side effects.
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Affiliation(s)
- Hongbo Xie
- a Clinical Pharmacology Institute, Nanchang University , Nanchang , P.R. China
| | - Jie Wu
- a Clinical Pharmacology Institute, Nanchang University , Nanchang , P.R. China
| | - Dan Liu
- a Clinical Pharmacology Institute, Nanchang University , Nanchang , P.R. China
| | - Mingyi Liu
- a Clinical Pharmacology Institute, Nanchang University , Nanchang , P.R. China
| | - Hong Zhang
- a Clinical Pharmacology Institute, Nanchang University , Nanchang , P.R. China
| | - Shibo Huang
- a Clinical Pharmacology Institute, Nanchang University , Nanchang , P.R. China
| | - Yuqing Xiong
- a Clinical Pharmacology Institute, Nanchang University , Nanchang , P.R. China
| | - Chunhua Xia
- a Clinical Pharmacology Institute, Nanchang University , Nanchang , P.R. China
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21
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Lepist EI, Ray AS. Beyond drug-drug interactions: effects of transporter inhibition on endobiotics, nutrients and toxins. Expert Opin Drug Metab Toxicol 2017; 13:1075-1087. [PMID: 28847160 DOI: 10.1080/17425255.2017.1372425] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Membrane transport proteins play a central role in regulating the disposition of endobiotics, dietary nutrients and environmental toxins. The inhibition of transporters by drugs has potential physiologic consequences. The full extent of the effect of drugs on the function of transporters is poorly understood because only a small subset of the hundreds of transporters expressed in humans - primarily those mediating the rate-determining step in the elimination of specific drugs - are assessed during clinical development. Areas covered: We provide a comprehensive overview of literature reports implicating the inhibition of transporters as the mechanism for off-target effects of drugs. Expert opinion: Transporter inhibition, the mechanism of action of many marketed drugs, appears to play an underappreciated role in a number of side effects including vitamin deficiency, edema, dyslipidemia, cholestasis and gout. Cell systems more broadly expressing transporter networks and methods like unbiased metabolomics should be incorporated into the screening paradigm to expand our understanding of the impact of drugs on the physiologic function of transporters and to allow for these effects to be taken into account in drug discovery and clinical practice.
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Affiliation(s)
- Eve-Irene Lepist
- a Departments of Drug Metabolism , Gilead Sciences, Inc ., Foster City , CA , USA
| | - Adrian S Ray
- b Clinical Research , Gilead Sciences, Inc ., Foster City , CA , USA
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22
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Yang K, Battista C, Woodhead JL, Stahl SH, Mettetal JT, Watkins PB, Siler SQ, Howell BA. Systems pharmacology modeling of drug-induced hyperbilirubinemia: Differentiating hepatotoxicity and inhibition of enzymes/transporters. Clin Pharmacol Ther 2017; 101:501-509. [PMID: 28074467 PMCID: PMC5367379 DOI: 10.1002/cpt.619] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 10/31/2016] [Accepted: 01/04/2017] [Indexed: 12/20/2022]
Abstract
Elevations in serum bilirubin during drug treatment may indicate global liver dysfunction and a high risk of liver failure. However, drugs also can increase serum bilirubin in the absence of hepatic injury by inhibiting specific enzymes/transporters. We constructed a mechanistic model of bilirubin disposition based on known functional polymorphisms in bilirubin metabolism/transport. Using physiologically based pharmacokinetic (PBPK) model-predicted drug exposure and enzyme/transporter inhibition constants determined in vitro, our model correctly predicted indinavir-mediated hyperbilirubinemia in humans and rats. Nelfinavir was predicted not to cause hyperbilirubinemia, consistent with clinical observations. We next examined a new drug candidate that caused both elevations in serum bilirubin and biochemical evidence of liver injury in rats. Simulations suggest that bilirubin elevation primarily resulted from inhibition of transporters rather than global liver dysfunction. We conclude that mechanistic modeling of bilirubin can help elucidate underlying mechanisms of drug-induced hyperbilirubinemia, and thereby distinguish benign from clinically important elevations in serum bilirubin.
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Affiliation(s)
- K Yang
- DILIsym Services Inc, Research Triangle Park, North Carolina, USA
| | - C Battista
- DILIsym Services Inc, Research Triangle Park, North Carolina, USA.,University of North Carolina Institute for Drug Safety Sciences, The Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - J L Woodhead
- DILIsym Services Inc, Research Triangle Park, North Carolina, USA
| | - S H Stahl
- ADME Transporters, Drug Safety and Metabolism, Innovative Medicines and Early Development, AstraZeneca, Cambridge, United Kingdom
| | - J T Mettetal
- Drug Safety and Metabolism, AstraZeneca R&D, Waltham, Massachusetts, USA
| | - P B Watkins
- University of North Carolina Institute for Drug Safety Sciences, The Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - S Q Siler
- DILIsym Services Inc, Research Triangle Park, North Carolina, USA
| | - B A Howell
- DILIsym Services Inc, Research Triangle Park, North Carolina, USA
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23
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Yao Z, Li S, Qin Z, Hong X, Dai Y, Wu B, Ye W, Gonzalez FJ, Yao X. Characterization of human UDP-glucuronosyltransferases responsible for glucuronidation and inhibition of norbakuchinic acid, a primary metabolite of hepatotoxicity and nephrotoxicity component bakuchiol inPsoralea corylifolia L. RSC Adv 2017. [DOI: 10.1039/c7ra10376j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Norbakuchinic acid (NBKA) is the most abundant metabolite of bakuchiol (a hepatotoxicity and nephrotoxicity component inPsoralea corylifoliaL.) in plasma and urine.
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Affiliation(s)
- Zhihong Yao
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research
| | - Shishi Li
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Zifei Qin
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research
| | - Xiaodan Hong
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
- Guangzhou Research and Creativity Biotechnology Co. Ltd
| | - Yi Dai
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research
| | - Baojian Wu
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research
| | - Wencai Ye
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research
| | - Frank J. Gonzalez
- Laboratory of Metabolism
- Center for Cancer Research
- National Cancer Institute
- National Institutes of Health
- Bethesda
| | - Xinsheng Yao
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- P. R. China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research
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24
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Lapham K, Novak J, Marroquin LD, Swiss R, Qin S, Strock CJ, Scialis R, Aleo MD, Schroeter T, Eng H, Rodrigues AD, Kalgutkar AS. Inhibition of Hepatobiliary Transport Activity by the Antibacterial Agent Fusidic Acid: Insights into Factors Contributing to Conjugated Hyperbilirubinemia/Cholestasis. Chem Res Toxicol 2016; 29:1778-1788. [DOI: 10.1021/acs.chemrestox.6b00262] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
| | | | | | | | - Shuzhen Qin
- Biological
Screening and Assay Development, Cyprotex, Watertown, Massachusetts 02472, United States
| | - Christopher J. Strock
- Biological
Screening and Assay Development, Cyprotex, Watertown, Massachusetts 02472, United States
| | | | | | | | | | | | - Amit S. Kalgutkar
- Pharmacokinetics,
Dynamics, and Metabolism Department, Pfizer Worldwide Research and Development, Cambridge, Massachusetts 02139, United States
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25
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Peng WJ, Xin RH, Luo YJ, Liang G, Ren LH, Liu Y, Wang GB, Zheng JF. EVALUATION OF THE ACUTE AND SUBCHRONIC TOXICITY OF Aster tataricus L. F. AFRICAN JOURNAL OF TRADITIONAL, COMPLEMENTARY, AND ALTERNATIVE MEDICINES 2016; 13:38-53. [PMID: 28480359 PMCID: PMC5412200 DOI: 10.21010/ajtcam.v13i6.8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Aster tataricus L. f. is used as a traditional Chinese drug to relieve cough and asthma symptoms and to eliminate phlegm. However, Aster tataricus L. f. possesses toxicity, and little systematic research has been conducted on its toxic effects in the laboratory. METHODS AND MATERIALS The acute group was administered 75% alcohol extract of Aster tataricus L. f. in a single dose. A subchronic toxicity study was performed via daily oral administration of Aster tataricus L. f. at a dose of 0.34 g/kg body weight in SD rats. The rats were divided into six groups: a petroleum ether extract (PEA) group, an ethyl acetate extract (EEA) group, an n-butyl alcohol extract (NEA) group, a remaining lower aqueous phases (REA) group, a 75% alcohol extract (AEA) group and a control group. Quantitative measurements of cytokines were obtained by fluorescence with a laser scanner using a Cy3 equivalent dye. RESULTS The LD50 of the 75% alcohol extract of Aster tataricus L. f. was 15.74 g/kg bw. In the subchronic toxicity study, no significant differences were observed among groups in relative organ weights, urine traits, liver antioxidase levels, or cytokine levels. However, significant sporadic differences were observed in body weight gains, haematology indices, biochemistry values, and histopathology features in PEA, EEA group. In addition, sporadic changes in other groups in measures such as WBC, MCHC, CK, ALP, AST, ALT, LDH, T-BIL, LDL-C, HDL-C, and TC were observed. CONCLUSION The toxicity study showed that Aster tataricus L. f. can produce toxic effects, mainly on the liver; much less on the heart. The LD50 was 15.74 g/kg BW in mice, and the subchronic toxicity study, used a dosage of 0.34 g/kg/d.BW, showed that the toxic components of Aster tataricus L. f. were mainly concentrated in the petroleum ether fraction, followed by the ethyl acetate fraction, the n-butyl alcohol fraction, the lower aqueous phase and the 75% ethanol extracts. Abbreviations: PEA, petroleum ether extract of Aster tataricus L. f.; EEA, ethyl acetate extract of Aster tataricus L. f.; NEA: n-butyl alcohol extract of Aster tataricus L. f.; REA: lower aqueous phases of Aster tataricus L. f.; AEA, 75% alcohol extract of Aster tataricus L. f.; WBC, white blood cell; RBC, red blood cell, PLT, platelet; HCT, haematocrit; MCV, mean corpuscular volume; HGB, haemoglobin; MCH, mean corpuscular haemoglobin; MCHC, mean corpuscular haemoglobin concentration; CREA, creatinine; LDH, lactate dehydrogenase; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; T-BIL, total bilirubin; ALT, alanine aminotransferase; ALP, alkaline phosphatase; AST, aspartate aminotransferase; TP, total protein; ALB, albumin; Glu, glucose; TC, total cholesterol; TG, triglycerides; CK, creatine kinase; GSH, Glutathione; MDA, malondialdehyde; T-SOD, total superoxide dismutase; TNF, tumour necrosis factor; IFN, interferon; MCP, monocyte chemotactic protein C.
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Affiliation(s)
- Wen-Jing Peng
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Key Laboratory of New Animal Drug Project of Gansu Province, Engineering & Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Key Laboratory of Veterinary Pharmaceutics Development, Ministry of Agriculture, Lanzhou 730050, PR China
| | - Rui-Hua Xin
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Key Laboratory of New Animal Drug Project of Gansu Province, Engineering & Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Key Laboratory of Veterinary Pharmaceutics Development, Ministry of Agriculture, Lanzhou 730050, PR China
| | - Yong-Jiang Luo
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Key Laboratory of New Animal Drug Project of Gansu Province, Engineering & Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Key Laboratory of Veterinary Pharmaceutics Development, Ministry of Agriculture, Lanzhou 730050, PR China
| | - Ge Liang
- Sichuan Animal Science Academy, Chengdu 610066, PR China
| | - Li-Hua Ren
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Key Laboratory of New Animal Drug Project of Gansu Province, Engineering & Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Key Laboratory of Veterinary Pharmaceutics Development, Ministry of Agriculture, Lanzhou 730050, PR China
| | - Yan Liu
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Key Laboratory of New Animal Drug Project of Gansu Province, Engineering & Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Key Laboratory of Veterinary Pharmaceutics Development, Ministry of Agriculture, Lanzhou 730050, PR China
| | - Gui-Bo Wang
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Key Laboratory of New Animal Drug Project of Gansu Province, Engineering & Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Key Laboratory of Veterinary Pharmaceutics Development, Ministry of Agriculture, Lanzhou 730050, PR China
| | - Ji-Fang Zheng
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Key Laboratory of New Animal Drug Project of Gansu Province, Engineering & Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Key Laboratory of Veterinary Pharmaceutics Development, Ministry of Agriculture, Lanzhou 730050, PR China
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Park JS, Nam E, Lee HK, Lim MH, Rhee HW. In Cellulo Mapping of Subcellular Localized Bilirubin. ACS Chem Biol 2016; 11:2177-85. [PMID: 27232847 DOI: 10.1021/acschembio.6b00017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Bilirubin (BR) is a de novo synthesized metabolite of human cells. However, subcellular localization of BR in the different organelles of human cells has been largely unknown. Here, utilizing UnaG as a genetically encoded fluorescent BR sensor, we report the existence of relatively BR-enriched and BR-depleted microspaces in various cellular organelles of live cells. Our studies indicate that (i) the cytoplasmic facing membrane of the endoplasmic reticulum (ER) and the nucleus are relatively BR-enriched spaces and (ii) mitochondrial intermembrane space and the ER lumen are relatively BR-depleted spaces. Thus, we demonstrate a relationship between such asymmetrical BR distribution in the ER membrane and the BR metabolic pathway. Furthermore, our results suggest plausible BR-transport and BR-regulating machineries in other cellular compartments, including the nucleus and mitochondria.
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Affiliation(s)
- Jong-Seok Park
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulju-gun, Ulsan, 44919, Republic of Korea
| | - Eunju Nam
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulju-gun, Ulsan, 44919, Republic of Korea
| | - Hye-Kyeong Lee
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulju-gun, Ulsan, 44919, Republic of Korea
| | - Mi Hee Lim
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulju-gun, Ulsan, 44919, Republic of Korea
| | - Hyun-Woo Rhee
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulju-gun, Ulsan, 44919, Republic of Korea
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Liu X, Chen DW, Wu X, Zhao Z, Fu ZW, Huang CT, Ye LX, Du Z, Yu Y, Fang ZZ, Sun HZ. The Inhibition of UDP-Glucuronosyltransferase (UGT) Isoforms by Praeruptorin A and B. Phytother Res 2016; 30:1872-1878. [PMID: 27534594 DOI: 10.1002/ptr.5697] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 07/18/2016] [Accepted: 07/20/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Xin Liu
- The First Affiliated Hospital of Jinzhou Medical University; Jinzhou Liaoning China
| | - Da-Wei Chen
- Department of Thyroid and Neck Tumor; Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy; Huanhuxi Road, Ti-Yuan-Bei, Hexi District Tianjin 300060 China
| | - Xue Wu
- Joint Center for Translational Medicine, Dalian Institute of Chemical Physics; Chinese Academy of Sciences and the First Affiliated Hospital of Liaoning Medical University; Dalian China
| | - Zhenying Zhao
- Tianjin Union Medical Center; 190 Jieyuan Road, Hongqiao District Tianjin 300121 China
| | - Zhi-Wei Fu
- Joint Center for Translational Medicine, Dalian Institute of Chemical Physics; Chinese Academy of Sciences and the First Affiliated Hospital of Liaoning Medical University; Dalian China
| | - Chun-Ting Huang
- Joint Center for Translational Medicine, Dalian Institute of Chemical Physics; Chinese Academy of Sciences and the First Affiliated Hospital of Liaoning Medical University; Dalian China
| | - Li-Xin Ye
- Department of Radiology; The 464th Hospital of PLA; No.600 Hongqi South Rd, Nankai District Tianjin 300381 China
| | - Zuo Du
- Joint Center for Translational Medicine, Dalian Institute of Chemical Physics; Chinese Academy of Sciences and the First Affiliated Hospital of Liaoning Medical University; Dalian China
| | - Yang Yu
- Department of Thyroid and Neck Tumor; Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy; Huanhuxi Road, Ti-Yuan-Bei, Hexi District Tianjin 300060 China
| | - Zhong-Ze Fang
- Department of Toxicology, School of Public Health; Tianjin Medical University; 22 Qixiangtai Road, Heping District Tianjin 300070 China
| | - Hong-Zhi Sun
- The First Affiliated Hospital of Jinzhou Medical University; Jinzhou Liaoning China
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Burns-Naas LA, Zorbas M, Jessen B, Evering W, Stevens G, Ivett JL, Ryan TE, Cook JC, Capen CC, Chen M, Furman G, Theiss JC, Webber S, Wu E, Shetty B, Gasser R, McClain RM. Increase in thyroid follicular cell tumors in nelfinavir-treated rats observed in a 2-year carcinogenicity study is consistent with a rat-specific mechanism of thyroid neoplasia. Hum Exp Toxicol 2016; 24:643-54. [PMID: 16408618 DOI: 10.1191/0960327105ht568oa] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The carcinogenic potential of nelfinavir mesylate (nelfinavir) was evaluated in a 2-year oral (gavage) study on Sprague-Dawley rats at dose levels of 0 (control), 0 (vehicle control), 100, 300 and 1000 mg/kg per day. At the end of the treatment, increased incidences of thyroid follicular cell hyperplasia and neoplasms were observed at 300 (males) and 1000 mg/kg per day (both sexes). There were no other treatment-related effects and no tumors at other sites. Results from previous studies indicated a number of effects in the liver and thyroid, as well as metabolic profiles that suggested nelfinavir might cause thyroid hyperplasia/neoplasia secondary to hormone imbalance by altering thyroid hormone disposition. To investigate this hypothesis, the effects of nelfinavir on gene expression in rat hepatocytes and liver slices (in vitro), thyroxine plasma clearance, and thyroid gland function were evaluated. Compared to controls, gene expression analyses demonstrated an increased expression of glucuronyltransferase (UDPGT) and CYP450 3A1 in nelfinavir-treated rat hepatocytes and liver slices. In rats treated with nelfinavir (1000 mg/kg per day) for 4 weeks, liver weights and centrilobular hepatocellular hypertrophy were increased and minimal to mild diffuse thyroid follicular cell hypertrophy and follicular cell hyperplasia were evident in the thyroid gland. Thyroid-stimulating hormone (TSH) levels were significantly increased (three-fold), while tri-iodothyronine (T3)/tetraiodothyronine (T4) and reverse T3(rT3) levels were unchanged, indicating that a compensated state to maintain homeostasis of T3/T4 had been achieved. Plasma 125I-thyroxine clearance was increased and the plasma thyroxine AUC0 48 was decreased (24%) compared to control. In conclusion, these data indicate that thyroid neoplasms observed in the nelfinavir-treated rats were secondary to thyroid hormone imbalance. Increased thyroxine clearance contributes to the effects of nelfinavir on thyroid gland function and is probably a result of UDPGT induction that leads to elevated TSH levels in the rat and eventual thyroid neoplasia. These results are consistent with a well-recognized rat-specific mechanism for thyroid neoplasms.
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Affiliation(s)
- L A Burns-Naas
- Pfizer Global Research and Development, San Diego, CA 92121, USA.
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Liu X, Cao YF, Dong PP, Zhu LL, Zhao Z, Wu X, Fu ZW, Huang CT, Fang ZZ, Sun HZ. The inhibition of UDP-glucuronosyltransferases (UGTs) by vitamin A. Xenobiotica 2016; 47:376-381. [PMID: 27359323 DOI: 10.1080/00498254.2016.1198841] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
1. The exposed level of vitamin A in plasma might be exceeded due to the both inadvertent and clinical utilization. The adverse effects of vitamin A have been frequently reported, however, the mechanism remains unclear. The inhibition of vitamin A on the activity of UDP-glucuronosyltransferases (UGTs) was determined using in vitro incubation system to explain the adverse effects of vitamin A from a new perspective. 2. UGT supersomes catalyzed glucuronidation of 4-methylumbelliferone (4-MU), trifluoperazine (TFP), and cotinine was used as the probe reaction to evaluate the inhibition of vitamin A toward UGT isoforms, and 100 μM of vitamin A significantly inhibited the activity of all the tested UGT isoforms. Vitamin A exerted competitive inhibition on the activity of UGT1A1, 2B4, 2B7, and 2B15, and the inhibition kinetic parameters (Ki) were calculated to be 31.1, 16.8, 2.2, and 11.6 μM for UGT1A1, 2B4, 2B7, and 2B15. In silico docking method was used to try to elucidate the inhibition mechanism of vitamin A toward UGT2B7. The results showed the significant contribution of hydrogen bonds and hydrophobic interaction on the UGT2B7 inhibition by vitamin A. 3. The present study provides a new perspective for the adverse effects of vitamin A through reporting the inhibition of vitamin A on the activity of important phase II drug-metabolizing enzymes UGTs, which benefits our deep understanding of mechanism of vitamin A's adverse effects when high exposure of vitamin A occurs.
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Affiliation(s)
- Xin Liu
- a First Affiliated Hospital of Liaoning Medical University , Jinzhou , Liaoning , China
| | - Yun-Feng Cao
- b RSKT Biopharma Inc. , Liaoning , China.,c Joint Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences and the First Affiliated Hospital of Liaoning Medical University , Dalian , China
| | - Pei-Pei Dong
- d Institute of Integrative Medicine, Dalian Medical University , Dalian , China
| | - Liang-Liang Zhu
- e Department of Food Science and Technology , School of Life Sciences, Anqing Normal University , China
| | - Zhenying Zhao
- f Tianjin Union Medical Center, Hongqiao District , Tianjin , China , and
| | - Xue Wu
- b RSKT Biopharma Inc. , Liaoning , China.,c Joint Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences and the First Affiliated Hospital of Liaoning Medical University , Dalian , China
| | - Zhi-Wei Fu
- b RSKT Biopharma Inc. , Liaoning , China.,c Joint Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences and the First Affiliated Hospital of Liaoning Medical University , Dalian , China
| | - Chun-Ting Huang
- b RSKT Biopharma Inc. , Liaoning , China.,c Joint Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences and the First Affiliated Hospital of Liaoning Medical University , Dalian , China
| | - Zhong-Ze Fang
- g Department of Toxicology , School of Public Health, Tianjin Medical University , Tianjin , China
| | - Hong-Zhi Sun
- a First Affiliated Hospital of Liaoning Medical University , Jinzhou , Liaoning , China
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Alkharfy KM, Jan BL, Afzal S, Al-Jenoobi FI, Al-Mohizea AM, Al-Muhsen S, Halwani R, Parvez MK, Al-Dosari MS. Prevalence of UDP-glucuronosyltransferase polymorphisms (UGT1A6∗2, 1A7∗12, 1A8∗3, 1A9∗3, 2B7∗2, and 2B15∗2) in a Saudi population. Saudi Pharm J 2016; 25:224-230. [PMID: 28344472 PMCID: PMC5355556 DOI: 10.1016/j.jsps.2016.05.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 05/29/2016] [Indexed: 11/25/2022] Open
Abstract
Glucuronidation is an important phase II pathway responsible for many endogenous substances and drug metabolism. The present work evaluated allele frequencies of certain UDP-glucuronosyl-transferases (UGT 1A6∗2, A7∗12, A8∗3, A9∗3, 2B7∗2, and 2B15∗2) in Saudi Arabians that could provide essential ethnic information. Blood samples from 192 healthy unrelated Saudi males of various geographic regions were collected. Genomic DNA was isolated and genotyping of various UGTs was carried out using polymerase chain reaction (PCR) followed by direct sequencing. For UGT1A6∗2 A/G genotype, the most common variant was the homozygous repeat (AA) and the most common allele was (A) with a frequency of 46.5% and 67.3%, respectively. Similarly, the most common variant for UGT1A7∗12 T/C genotype was the heterozygous repeat (TC) with a frequency of 78.7% while the mutant allele (C) was present in 60.6% of the study population. Both UGT1A8∗3 (G/A) and UGT1A9∗3 (T/C) showed only a wild homozygous pattern in all screened subjects. For UGT2B7∗2, the heterozygous repeat (TC) was found with a frequency of 57.3% and the alleles (A) showed a frequency of 50.8%. In contrast, for UGT2B15∗2 (G253T), the heterozygous repeat (TG) presented 62.3% of the subjects where the most common allele (G) was with a frequency of 66.2%. In conclusion, our data indicate that Saudis harbor some important UGT mutations known to affect enzyme activity. Additional studies are therefore, warranted to assess the clinical implications of these gene polymorphisms in this ethnic group.
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Affiliation(s)
- Khalid M Alkharfy
- Department of Clinical Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Basit L Jan
- Department of Clinical Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Sibtain Afzal
- Department of Pediatrics, Asthma Research Chair and Prince Naif Center for Immunology Research, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | | | | | - Saleh Al-Muhsen
- Department of Pediatrics, Asthma Research Chair and Prince Naif Center for Immunology Research, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Rabih Halwani
- Department of Pediatrics, Asthma Research Chair and Prince Naif Center for Immunology Research, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Mohammad K Parvez
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed S Al-Dosari
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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Lv X, Wang XX, Hou J, Fang ZZ, Wu JJ, Cao YF, Liu SW, Ge GB, Yang L. Comparison of the inhibitory effects of tolcapone and entacapone against human UDP-glucuronosyltransferases. Toxicol Appl Pharmacol 2016; 301:42-9. [PMID: 27089846 DOI: 10.1016/j.taap.2016.04.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 04/12/2016] [Accepted: 04/14/2016] [Indexed: 01/15/2023]
Abstract
Tolcapone and entacapone are two potent catechol-O-methyltransferase (COMT) inhibitors with a similar skeleton and displaying similar pharmacological activities. However, entacapone is a very safe drug used widely in the treatment of Parkinson's disease, while tolcapone is only in limited use for Parkinson's patients and needs careful monitoring of hepatic functions due to hepatotoxicity. This study aims to investigate and compare the inhibitory effects of entacapone and tolcapone on human UDP-glucosyltransferases (UGTs), as well as to evaluate the potential risks from the view of drug-drug interactions (DDI). The results demonstrated that both tolcapone and entacapone exhibited inhibitory effects on UGT1A1, UGT1A7, UGT1A9 and UGT1A10. In contrast to entacapone, tolcapone exhibited more potent inhibitory effects on UGT1A1, UGT1A7, and UGT1A10, while their inhibitory potentials against UGT1A9 were comparable. It is noteworthy that the inhibition constants (Ki) of tolcapone and entacapone against bilirubin-O-glucuronidation in human liver microsomes (HLM) are determined as 0.68μM and 30.82μM, respectively, which means that the inhibition potency of tolcapone on UGT1A1 mediated bilirubin-O-glucuronidation in HLM is much higher than that of entacapone. Furthermore, the potential risks of tolcapone or entacapone via inhibition of human UGT1A1 were quantitatively predicted by the ratio of the areas under the plasma drug concentration-time curve (AUC). The results indicate that tolcapone may result in significant increase in AUC of bilirubin or the drugs primarily metabolized by UGT1A1, while entacapone is unlikely to cause a significant DDI through inhibition of UGT1A1.
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Affiliation(s)
- Xia Lv
- Laboratory of Pharmaceutical Resource Discovery, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; State Key Laboratory of Organ Failure Research, Guangdong Provincial Institute of Nephrology, Southern Medical University, Guangzhou 510515, China
| | | | - Jie Hou
- Dalian Medical University, Dalian 116044, China
| | | | - Jing-Jing Wu
- Laboratory of Pharmaceutical Resource Discovery, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; State Key Laboratory of Organ Failure Research, Guangdong Provincial Institute of Nephrology, Southern Medical University, Guangzhou 510515, China
| | | | - Shu-Wen Liu
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Institute of Nephrology, Southern Medical University, Guangzhou 510515, China
| | - Guang-Bo Ge
- Laboratory of Pharmaceutical Resource Discovery, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; State Key Laboratory of Organ Failure Research, Guangdong Provincial Institute of Nephrology, Southern Medical University, Guangzhou 510515, China.
| | - Ling Yang
- Laboratory of Pharmaceutical Resource Discovery, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; Jiangxi University of Traditional Chinese Medicine, Nanchang 330006, China.
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Xin H, Qi XY, Wu JJ, Wang XX, Li Y, Hong JY, He W, Xu W, Ge GB, Yang L. Assessment of the inhibition potential of Licochalcone A against human UDP-glucuronosyltransferases. Food Chem Toxicol 2016; 90:112-22. [DOI: 10.1016/j.fct.2016.02.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 01/24/2016] [Accepted: 02/05/2016] [Indexed: 01/19/2023]
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Shimizu T, Fukuoka K, Takeda M, Iwasa T, Yoshida T, Horobin J, Keegan M, Vaickus L, Chavan A, Padval M, Nakagawa K. A first-in-Asian phase 1 study to evaluate safety, pharmacokinetics and clinical activity of VS-6063, a focal adhesion kinase (FAK) inhibitor in Japanese patients with advanced solid tumors. Cancer Chemother Pharmacol 2016; 77:997-1003. [PMID: 27025608 PMCID: PMC4844649 DOI: 10.1007/s00280-016-3010-1] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 03/14/2016] [Indexed: 11/29/2022]
Abstract
Purpose
VS-6063 (also known as defactinib or PF-04554878) is a second-generation inhibitor of focal adhesion kinase and proline-rich tyrosine kinase-2. This phase 1 study evaluated the safety and tolerability, pharmacokinetics, and clinical activity of VS-6063 in Japanese subjects with advanced solid tumor malignancies in a first-in-Asian study setting. Methods VS-6063 was administered orally twice daily (b.i.d.) in 21-day cycles to cohorts of three subjects each with a standard 3 + 3 dose-escalation design until disease progression or unacceptable toxicity. Blood samples for pharmacokinetics were collected on Day 1 and 15. The assessments were performed using CTCAE v4.0 for adverse events (AEs), and the Response Evaluation Criteria In Solid Tumors, version v1.1 (RECIST v1.1) for tumor response. Results Nine patients were treated across three dose levels (200–600 mg BID). No dose-limiting toxicities were observed at any dose level. Most frequent treatment-related AEs were Grade 1/2 unconjugated hyperbilirubinemia, fatigue, decreased appetite, and diarrhea. Only one subject in the 200 mg BID cohort experienced reversible and transient Grade 3 unconjugated hyperbilirubinemia. PK analyses confirmed that the exposure at the recommended Phase 2 dose (RP2D) of 400 mg BID was comparable with exposures previously reported in non-Japanese subjects. Durable stable disease of approximately 24 weeks was confirmed in two subjects (malignant mesothelioma and rectal cancer). Conclusions VS-6063 was well tolerated at all dose levels investigated in this first-in-Asian study. These data support the administration of VS-6063 to Japanese subjects at the RP2D in clinical trials involving solid tumor malignancies.
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Affiliation(s)
- Toshio Shimizu
- Department of Medical Oncology, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osaka-Sayama City, Osaka, 5898511, Japan.
| | - Kazuya Fukuoka
- Department of Medical Oncology, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osaka-Sayama City, Osaka, 5898511, Japan
| | - Masayuki Takeda
- Department of Medical Oncology, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osaka-Sayama City, Osaka, 5898511, Japan
| | - Tutomu Iwasa
- Department of Medical Oncology, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osaka-Sayama City, Osaka, 5898511, Japan
| | - Takeshi Yoshida
- Department of Medical Oncology, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osaka-Sayama City, Osaka, 5898511, Japan
| | | | | | | | | | | | - Kazuhiko Nakagawa
- Department of Medical Oncology, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osaka-Sayama City, Osaka, 5898511, Japan
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Kaspar MB, Sterling RK. Hyperbilirubinaemia in HIV-HCV co-infected patients on antiretroviral therapy: drug effect or liver disease severity? BMJ Open Gastroenterol 2016; 3:e000072. [PMID: 26966552 PMCID: PMC4780040 DOI: 10.1136/bmjgast-2015-000072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 12/31/2015] [Accepted: 01/04/2016] [Indexed: 12/05/2022] Open
Abstract
Objective Hyperbilirubinaemia (HB) is common in HIV and hepatitis C virus (HIV–HCV) co-infected patients and poses a unique challenge in management as it may be due to medications such as the protease inhibitors (PIs) or to hepatic dysfunction. There are no data on the relationship of HB to liver histology and PI use in this population. Clinicians caring for these patients are faced with the difficult task of determining whether increasing serum bilirubin is due to drug effects or progression of liver disease. Methods To address this gap in knowledge, we performed a retrospective analysis of 344 consecutive HIV–HCV co-infected patients undergoing liver biopsy to identify factors associated with HB. Demographic, clinical, laboratory data were collected. Advanced fibrosis was defined as bridging fibrosis or cirrhosis. Those with hepatitis B virus, hepatic decompensation or hepatocellular carcinoma were excluded. Results The prevalence of HB (range 1.3–9.4) was 33% and more common in those on a PI (46%) than those who were not (10%; p≤0.001) and mostly in those on indinavir (40%) or atazanavir (46%). Of the patients on these PIs, HB was not associated with fibrosis grade, demographics, or other clinical variables. Conversely, in those not on a PI, HB was associated with fibrosis grade (p≤0.0001) after adjusting for other clinical and demographic variables. Conclusions In the setting of indinavir or atazanavir use, HB is common and unrelated to underlying disease severity and the medications can be continued safely. Conversely, HB in HIV–HCV co-infected patients not on a PI is due to their underlying liver disease and suggests these patients require closer monitoring.
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Affiliation(s)
- Matthew B Kaspar
- Department of Internal Medicine , Virginia Commonwealth University Medical Center , Richmond, Virginia , USA
| | - Richard K Sterling
- Department of Internal Medicine, Virginia Commonwealth University Medical Center, Richmond, Virginia, USA; Section of Hepatology, Virginia Commonwealth University Medical Center, Richmond, Virginia, USA; Division of Infectious Disease, Virginia Commonwealth University Medical Center, Richmond, Virginia, USA
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Dambach DM, Misner D, Brock M, Fullerton A, Proctor W, Maher J, Lee D, Ford K, Diaz D. Safety Lead Optimization and Candidate Identification: Integrating New Technologies into Decision-Making. Chem Res Toxicol 2015; 29:452-72. [DOI: 10.1021/acs.chemrestox.5b00396] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Donna M. Dambach
- Department of Safety Assessment, Genentech, Inc., 1 DNA
Way, South San Francisco, California 94080, United States
| | - Dinah Misner
- Department of Safety Assessment, Genentech, Inc., 1 DNA
Way, South San Francisco, California 94080, United States
| | - Mathew Brock
- Department of Safety Assessment, Genentech, Inc., 1 DNA
Way, South San Francisco, California 94080, United States
| | - Aaron Fullerton
- Department of Safety Assessment, Genentech, Inc., 1 DNA
Way, South San Francisco, California 94080, United States
| | - William Proctor
- Department of Safety Assessment, Genentech, Inc., 1 DNA
Way, South San Francisco, California 94080, United States
| | - Jonathan Maher
- Department of Safety Assessment, Genentech, Inc., 1 DNA
Way, South San Francisco, California 94080, United States
| | - Dong Lee
- Department of Safety Assessment, Genentech, Inc., 1 DNA
Way, South San Francisco, California 94080, United States
| | - Kevin Ford
- Department of Safety Assessment, Genentech, Inc., 1 DNA
Way, South San Francisco, California 94080, United States
| | - Dolores Diaz
- Department of Safety Assessment, Genentech, Inc., 1 DNA
Way, South San Francisco, California 94080, United States
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Sherman KE, Rockstroh J, Thomas D. Human immunodeficiency virus and liver disease: An update. Hepatology 2015; 62:1871-82. [PMID: 26340591 PMCID: PMC4681629 DOI: 10.1002/hep.28150] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Accepted: 08/28/2015] [Indexed: 12/18/2022]
Abstract
UNLABELLED Human immunodeficiency viral (HIV) infection affects approximately 1.2 million persons in the United States and 35 million worldwide. Progression to advanced liver disease remains a leading cause of death among HIV-infected persons in the United States and elsewhere. Though mortality from HIV complications has been dramatically reduced wherever effective combination antiretroviral therapy is used, there has been little impact on liver-related mortality. Causes of liver disease in the setting of HIV infection include viral hepatitis, nonalcoholic fatty liver disease/nonalcoholic steatohepatitis, drug-associated toxicities, and other metabolic/genetic disorders which interact in an environment modulated by persistent immune activation and altered cytokine display. CONCLUSION Despite significant advances in treatment of hepatitis C virus and suppression of hepatitis B virus, treatment and management principles for liver disease in HIV-infected patients remain challenging; limited resources, fragmented health care, and high levels of injection drug use, alcohol use, and depression remain relevant issues in the HIV-infected patient.
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Affiliation(s)
- Kenneth E Sherman
- Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH
| | | | - David Thomas
- Department of Medicine, Johns Hopkins University, Baltimore, MD
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Zhang Q, Cao YF, Ran RX, Li RS, Wu X, Dong PP, Zhang YY, Hu CM, Wang WM. Strong Specific Inhibition of UDP-glucuronosyltransferase 2B7 by Atractylenolide I and III. Phytother Res 2015; 30:25-30. [PMID: 26536846 DOI: 10.1002/ptr.5496] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 09/22/2015] [Accepted: 09/27/2015] [Indexed: 11/11/2022]
Abstract
Drug-metabolizing enzymes inhibition-based drug-drug interaction remains to be the key limiting factor for the research and development of efficient herbal components to become clinical drugs. The present study aims to determine the inhibition of uridine 5'-diphospho-glucuronosyltransferases (UGTs) isoforms by two important efficient herbal ingredients isolated from Atractylodes macrocephala Koidz, atractylenolide I and III. In vitro recombinant UGTs-catalysed glucuronidation of 4-methylumbelliferone was used to determine the inhibition capability and kinetics of atractylenolide I and III towards UGT2B7, and in silico docking method was employed to explain the possible mechanism. Atractylenolide I and III exhibited specific inhibition towards UGT2B7, with negligible influence towards other UGT isoforms. Atractylenolide I exerted stronger inhibition potential than atractylenolide III towards UGT2B7, which is attributed to the different hydrogen bonds and hydrophobic interactions. Inhibition kinetic analysis was performed for the inhibition of atractylenolide I towards UGT2B7. Inhibition kinetic determination showed that atractylenolide I competitively inhibited UGT2B7, and inhibition kinetic parameter (Ki) was calculated to be 6.4 μM. In combination of the maximum plasma concentration of atractylenolide I after oral administration of 50 mg/kg atractylenolide I, the area under the plasma concentration-time curve ration AUCi /AUC was calculated to be 1.17, indicating the highly possible drug-drug interaction between atractylenolide I and drugs mainly undergoing UGT2B7-catalysed metabolism.
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Affiliation(s)
- Qian Zhang
- Affiliated Zhongshan Hospital of Dalian University, No. 6 Jiefang Street, Dalian, 116001, Liaoning, China
| | - Yun-Feng Cao
- Key Laboratory of Contraceptives and Devices Research (NPFPC), Shanghai Engineer and Technology Research Center of Reproductive Health Drug and Devices, Shanghai Institute of Planned Parenthood Research, Shanghai, 200032, China
| | - Rui-Xue Ran
- School of Pharmacy, Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), Tianjin Medical University, Tianjin, 300070, China
| | - Rong-Shan Li
- School of Pharmacy, Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), Tianjin Medical University, Tianjin, 300070, China
| | - Xue Wu
- Joint Center for Translational Medicine, Dalian Institute of Chemical Physics Chinese Academy of Sciences and The first Affiliated Hospital of Liaoning Medical University, No. 457, Zhongshan Road, Dalian, 116023, China.,Joint Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences and The Affiliated Zhongshan Hospital of Dalian University, No. 6, Jiefang Street, Dalian, 116001, Zhongshan District, China
| | - Pei-Pei Dong
- Institute of integrative Medicine, Dalian Medical University, Dalian, 116044, China
| | - Yan-Yan Zhang
- Joint Center for Translational Medicine, Dalian Institute of Chemical Physics Chinese Academy of Sciences and The first Affiliated Hospital of Liaoning Medical University, No. 457, Zhongshan Road, Dalian, 116023, China.,The First Affiliated Hospital of Liaoning Medical University, Jinzhou, Liaoning, 121001, China
| | - Cui-Min Hu
- Department of Microbiology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Wei-Ming Wang
- Affiliated Zhongshan Hospital of Dalian University, No. 6 Jiefang Street, Dalian, 116001, Liaoning, China
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Identification and characterization of naturally occurring inhibitors against UDP-glucuronosyltransferase 1A1 in Fructus Psoraleae (Bu-gu-zhi). Toxicol Appl Pharmacol 2015; 289:70-8. [DOI: 10.1016/j.taap.2015.09.003] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 08/19/2015] [Accepted: 09/01/2015] [Indexed: 01/18/2023]
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Yao Z, Liu YZ, Ma AL, Wang SF, Lu D, Hu CM, Zhang YY, Wang H, Hu L, Deng J, Yang K, Fang ZZ. Chiral Inhibition of Rivaroxaban Derivatives Towards UDP-Glucuronosyltransferase (UGT) Isoforms. Chirality 2015; 27:936-43. [DOI: 10.1002/chir.22505] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 04/24/2015] [Accepted: 07/19/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Zhuhua Yao
- Department of Cardiology; Tianjin Union Medicine Centre; 300121 Tianjin People's Republic of China
| | - Yong-Zhe Liu
- Department of Toxicology, School of Public Health; Tianjin Medical University; Tianjin People's Republic of China
| | - Ai-Lun Ma
- School of Pharmaceutical Science and Technology, Key Laboratory for Modern Drug Delivery & High-Efficiency; Tianjin University; Tianjin People's Republic of China
| | - Shu-Fen Wang
- Department of Toxicology, School of Public Health; Tianjin Medical University; Tianjin People's Republic of China
| | - Dan Lu
- Department of Immunology, Tianjin Key Laboratory of Cellular and Molecular Immunology; Tianjin Medical University; Tianjin People's Republic of China
| | - Cui-Min Hu
- Tianjin Life Science Research Center, Department of Microbiology, School of Basic Medical Sciences; Tianjin Medical University; Tianjin People's Republic of China
| | - Yan-Yan Zhang
- Joint Center for Translational Medicine, Dalian Institute of Chemical Physics; Chinese Academy of Sciences and First Affiliated Hospital of Liaoning Medical University; Dalian People's Republic of China
| | - Haina Wang
- College of Pharmaceutical Sciences; Shandong University; Jinan People's Republic of China
| | - Lingyun Hu
- Shandong Cancer Hospital and Institute; Shandong People's Republic of China
| | - Jun Deng
- School of Pharmaceutical Science and Technology, Key Laboratory for Modern Drug Delivery & High-Efficiency; Tianjin University; Tianjin People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin University; Tianjin People's Republic of China
| | - Kun Yang
- Department of Toxicology, School of Public Health; Tianjin Medical University; Tianjin People's Republic of China
| | - Zhong-Ze Fang
- Department of Toxicology, School of Public Health; Tianjin Medical University; Tianjin People's Republic of China
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Namjou B, Marsolo K, Lingren T, Ritchie MD, Verma SS, Cobb BL, Perry C, Kitchner TE, Brilliant MH, Peissig PL, Borthwick KM, Williams MS, Grafton J, Jarvik GP, Holm IA, Harley JB. A GWAS Study on Liver Function Test Using eMERGE Network Participants. PLoS One 2015; 10:e0138677. [PMID: 26413716 PMCID: PMC4586138 DOI: 10.1371/journal.pone.0138677] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 09/02/2015] [Indexed: 11/18/2022] Open
Abstract
Introduction Liver enzyme levels and total serum bilirubin are under genetic control and in recent years genome-wide population-based association studies have identified different susceptibility loci for these traits. We conducted a genome-wide association study in European ancestry participants from the Electronic Medical Records and Genomics (eMERGE) Network dataset of patient medical records with available genotyping data in order to identify genetic contributors to variability in serum bilirubin levels and other liver function tests and to compare the effects between adult and pediatric populations. Methods The process of whole genome imputation of eMERGE samples with standard quality control measures have been described previously. After removing missing data and outliers based on principal components (PC) analyses, 3294 samples from European ancestry were used for the GWAS study. The association between each single nucleotide polymorphism (SNP) and total serum bilirubin and other liver function tests was tested using linear regression, adjusting for age, gender, site, platform and ancestry principal components (PC). Results Consistent with previous results, a strong association signal has been detected for UGT1A gene cluster (best SNP rs887829, beta = 0.15, p = 1.30x10-118) for total serum bilirubin level. Indeed, in this region more than 176 SNPs (or indels) had p<10−8 spanning 150Kb on the long arm of chromosome 2q37.1. In addition, we found a similar level of magnitude in a pediatric group (p = 8.26x10-47, beta = 0.17). Further imputation using sequencing data as a reference panel revealed association of other markers including known TA7 repeat indels (rs8175347) (p = 9.78x10-117) and rs111741722 (p = 5.41x10-119) which were in proxy (r2 = 0.99) with rs887829. Among rare variants, two Asian subjects homozygous for coding SNP rs4148323 (G71R) were identified. Additional known effects for total serum bilirubin were also confirmed including organic anion transporters SLCO1B1-SLCO1B3, TDRP and ZMYND8 at FDR<0.05 with no gene-gene interaction effects. Phenome-wide association studies (PheWAS) suggest a protective effect of TA7 repeat against cerebrovascular disease in an adult cohort (OR = 0.75, p = 0.0008). Among other liver function tests, we also confirmed the previous effect of the ABO blood group locus for variation in serum alkaline phosphatase (rs579459, p = 9.44x10-15). Conclusions Taken together, our data present interesting findings with strong confirmation of previous effects by simply using the eMERGE electronic health record phenotyping. In addition, our findings indicate that similar to the adult population, the UGT1A1 is the main locus responsible for normal variation of serum bilirubin in pediatric populations.
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Affiliation(s)
- Bahram Namjou
- Center for Autoimmune Genomics and Etiology, Cincinnati Children’s Hospital Medical Center (CCHMC), Cincinnati, OH, United States of America
- University of Cincinnati, College of Medicine, Cincinnati, OH, United States of America
- * E-mail:
| | - Keith Marsolo
- University of Cincinnati, College of Medicine, Cincinnati, OH, United States of America
- Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
| | - Todd Lingren
- University of Cincinnati, College of Medicine, Cincinnati, OH, United States of America
- Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
| | - Marylyn D. Ritchie
- Center for Systems Genomics, The Pennsylvania State University, University Park, PA, United States of America
| | - Shefali S. Verma
- Center for Systems Genomics, The Pennsylvania State University, University Park, PA, United States of America
| | - Beth L. Cobb
- Center for Autoimmune Genomics and Etiology, Cincinnati Children’s Hospital Medical Center (CCHMC), Cincinnati, OH, United States of America
| | - Cassandra Perry
- Division of Genetics and Genomics, Boston Children’s Hospital (BCH), Boston, MA, United States of America
| | - Terrie E. Kitchner
- Center for Human Genetics, Marshfield Clinic, Marshfield, Wisconsin, United States of America
| | - Murray H. Brilliant
- Center for Human Genetics, Marshfield Clinic, Marshfield, Wisconsin, United States of America
| | - Peggy L. Peissig
- Center for Human Genetics, Marshfield Clinic, Marshfield, Wisconsin, United States of America
| | - Kenneth M. Borthwick
- Genomic Medicine Institute, Geisinger Health System, Danville, PA, United States of America
| | - Marc S. Williams
- Genomic Medicine Institute, Geisinger Health System, Danville, PA, United States of America
| | - Jane Grafton
- Group Health Research Institute, Seattle, WA, United States of America
| | - Gail P. Jarvik
- Department of Medicine, University of Washington, Seattle, WA, United States of America
- Department of Genome Sciences, University of Washington, Seattle, WA, United States of America
| | - Ingrid A. Holm
- Division of Genetics and Genomics and The Manton Center for Orphan Disease Research, Boston Children’s Hospital, Boston, MA, United States of America
- Department of Pediatrics, Harvard Medical School, Boston, MA, United States of America
| | - John B. Harley
- Center for Autoimmune Genomics and Etiology, Cincinnati Children’s Hospital Medical Center (CCHMC), Cincinnati, OH, United States of America
- University of Cincinnati, College of Medicine, Cincinnati, OH, United States of America
- U.S. Department of Veterans Affairs Medical Center, Cincinnati, OH, United States of America
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A phase I study of VS-6063, a second-generation focal adhesion kinase inhibitor, in patients with advanced solid tumors. Invest New Drugs 2015; 33:1100-7. [PMID: 26334219 DOI: 10.1007/s10637-015-0282-y] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 08/19/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVE VS-6063 (also known as defactinib or PF-04554878) is a second-generation inhibitor of focal adhesion kinase (FAK) and proline-rich tyrosine kinase-2 (Pyk2). This phase I dose-escalation study was conducted in patients with advanced solid malignancies. METHODS Using a traditional 3 + 3 design, VS-6063 was administered orally twice daily (b.i.d.) in 21-day cycles to cohorts of three to six patients. In cycle 1, a lead-in dose was administered to assess single-dose pharmacokinetics; steady-state pharmacokinetics was assessed after 15 days of continuous dosing. Dose escalation was performed in the fasted state, and repeated in two additional cohorts in the fed state. RESULTS Forty-six patients were treated across nine dose levels (12.5-750 mg b.i.d.). Dose-limiting toxicities, comprising headache (n = 1), fatigue (n = 1) and unconjugated hyperbilirubinemia (n = 3), occurred at the 300- or 425-mg b.i.d. dose level and were reversible. Frequent adverse events included nausea (37 %), fatigue (33 %), vomiting (28 %), diarrhea (22 %) and headache (22 %). A maximum-tolerated dose was not defined. Dose escalation was stopped at the 750-mg b.i.d. dose due to decreased serum exposure in the 500- and 750-mg versus 300- and 425-mg groups. Food delayed the time to peak serum concentration without affecting serum drug exposure. No radiographic responses were reported. Disease stabilization at ~12 weeks occurred in six of 37 (16 %) patients receiving doses ≥100 mg b.i.d. CONCLUSIONS VS-6063 has an acceptable safety profile. Treatment-related adverse events were mild to moderate, and reversible. The recommended phase II fasting dose of VS-6063 is 425 mg b.i.d.
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Xiao W, Lu MH. Comparison of the inhibition capability of oleanolic acid and betulinic acid towards drug-metabolizing enzymes. Afr Health Sci 2015; 15:1011-5. [PMID: 26957994 DOI: 10.4314/ahs.v15i3.40] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Human UDP-glucuronosyltransferases (UGTs) are important membrane proteins located in endoplasmic reticulum, and play important roles in metabolism of a variety of endogenous and exogenous compounds. AIMS To determine the influence of subtle difference in the structure of oleanolic acid and betulinic acid towards the inhibition towards the activity of UGT isoforms. METHODS In vitro glucuronidation of 4-methylumbelliferone (4-MU) reaction was employed as the probe reaction to determine the inhibition of these two compounds towards UGTs' activity. RESULTS The inhibition of capability of oleanolic acid towards UGT1A6 and UGT1A8 were higher than betulinic acid. However, no significant difference was observed for the inhibition of oleanolic acid and betulinic acid towards UGT1A7. Furthermore, concentration-dependent behaviour was determined for the inhibition of oleanolic acid and betulinic acid towards UGT1A6 and UGT1A8. At various concentrations of oleanolic acid and betulinic acid, the inhibition of oleanolic acid towards UGT1A6 and UGT1A8 was higher than betulinic acid. CONSLUSION Given that UGT1A6 and UGT1A8 play key role in the the inhibition of oleanolic acid towards UGT1A6 and UGT1A8 will induce drug-drug interaction and the risk of diseases.
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Affiliation(s)
- Wei Xiao
- Department of Infectious Diseases, Xiangya Hospital of Central South University, Changsha, Hu'nan 410008, China
| | - Meng-Hou Lu
- Department of Infectious Diseases, Xiangya Hospital of Central South University, Changsha, Hu'nan 410008, China
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Song JH, Cui L, An LB, Li WT, Fang ZZ, Zhang YY, Dong PP, Wu X, Wang LX, Gonzalez FJ, Sun XY, Zhao DW. Inhibition of UDP-Glucuronosyltransferases (UGTs) Activity by constituents of Schisandra chinensis. Phytother Res 2015; 29:1658-64. [PMID: 26084208 DOI: 10.1002/ptr.5395] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 04/27/2015] [Accepted: 05/21/2015] [Indexed: 11/05/2022]
Abstract
Structure-activity relationship for the inhibition of Schisandra chinensis's ingredients toward (Uridine-Diphosphate) UDP-glucuronosyltransferases (UGTs) activity was performed in the present study. In vitro incubation system was employed to screen the inhibition capability of S. chinensis's ingredients, and in silico molecular docking method was carried out to explain possible mechanisms. At 100 μM of compounds, the activity of UGTs was inhibited by less than 90% by schisandrol A, schisandrol B, schisandrin, schisandrin C, schisantherin A, gomisin D, and gomisin G. Schisandrin A exerted strong inhibition toward UGT1A1 and UGT1A3, with the residual activity to be 7.9% and 0% of control activity. Schisanhenol exhibited strong inhibition toward UGT2B7, with the residual activity to be 7.9% of control activity. Gomisin J of 100 μM inhibited 91.8% and 93.1% of activity of UGT1A1 and UGT1A9, respectively. Molecular docking prediction indicated different hydrogen bonds interaction resulted in the different inhibition potential induced by subtle structure alteration among schisandrin A, schisandrin, and schisandrin C toward UGT1A1 and UGT1A3: schisandrin A > schisandrin > schisandrin C. The detailed inhibition kinetic evaluation showed the strong inhibition of gomisin J toward UGT1A9 with the inhibition kinetic parameter (Ki ) to be 0.7 μM. Based on the concentrations of gomisin J in the plasma of the rats given with S. chinensis, high herb-drug interaction existed between S. chinensis and drugs mainly undergoing UGT1A9-mediated metabolism. In conclusion, in silico-in vitro method was used to give the inhibition information and possible inhibition mechanism for S. chinensis's components toward UGTs, which guide the clinical application of S. chinensis.
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Affiliation(s)
- Jin-Hui Song
- Affiliated Zhongshan Hospital of Dalian University, No.6, Jiefang Street, Zhongshan District, Dalian, 116001, China
| | - Li Cui
- Affiliated Zhongshan Hospital of Dalian University, No.6, Jiefang Street, Zhongshan District, Dalian, 116001, China
| | - Li-Bin An
- Dalian University, Dalian, 116622, China
| | - Wen-Tao Li
- Dalian University, Dalian, 116622, China
| | - Zhong-Ze Fang
- Department of Toxicology, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300070, China
| | - Yan-Yan Zhang
- First Affiliated Hospital of Liaoning Medical University, Jinzhou, Liaoning, China
| | - Pei-Pei Dong
- Institute of Integrative Medicine, College of Pharmacy, Dalian Medical University, Dalian, 116044, China
| | - Xue Wu
- Personalized Treatment & Diagnosis Center, No.6, Jiefang Street, Zhongshan District, Dalian, 116001, China
| | - Li-Xuan Wang
- Personalized Treatment & Diagnosis Center, No.6, Jiefang Street, Zhongshan District, Dalian, 116001, China
| | - Frank J Gonzalez
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Xiao-Yu Sun
- Personalized Treatment & Diagnosis Center, No.6, Jiefang Street, Zhongshan District, Dalian, 116001, China
| | - De-Wei Zhao
- Affiliated Zhongshan Hospital of Dalian University, No.6, Jiefang Street, Zhongshan District, Dalian, 116001, China
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Lv X, Ge GB, Feng L, Troberg J, Hu LH, Hou J, Cheng HL, Wang P, Liu ZM, Finel M, Cui JN, Yang L. An optimized ratiometric fluorescent probe for sensing human UDP-glucuronosyltransferase 1A1 and its biological applications. Biosens Bioelectron 2015; 72:261-7. [PMID: 25988789 DOI: 10.1016/j.bios.2015.05.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 04/15/2015] [Accepted: 05/04/2015] [Indexed: 01/10/2023]
Abstract
This study aimed to develop a practical ratiometric fluorescent probe for highly selective and sensitive detection of human UDP-glucuronosyltransferase 1A1 (UGT1A1), one of the most important phase II enzymes. 4-Hydroxy-1,8-naphthalimide (HN) was selected as the fluorophore for this study because it possesses intramolecular charge transfer (ICT) feature and displays outstanding optical properties. A series of N-substituted derivatives with various hydrophobic, acidic and basic groups were designed and synthesized to evaluate the selectivity of HN derivatives toward UGT1A1. Our results demonstrated that the introduction of an acidic group to HN could significantly improve the selectivity of UGT1A1. Among the synthesized fluorescent probes, NCHN (N-3-carboxy propyl-4-hydroxy-1,8-naphthalimide) displayed the best combination of selectivity, sensitivity and ratiometric fluorescence response following UGT1A1-catalyzed glucuronidation. UGT1A1-catalyzed NCHN-4-O-glucuronidation generated a single fluorescent product with a high quantum yield (Φ=0.688) and brought remarkable changes in both color and fluorescence in comparison with the parental substrate. The newly developed probe has been successfully applied for sensitive measurements of UGT1A1 activities in human liver preparations, as well as for rapid screening of UGT1A1 modulators, using variable enzyme sources. Furthermore, its potential applications for live imaging of endogenous UGT1A1in cells have also been demonstrated.
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Affiliation(s)
- Xia Lv
- Laboratory of Pharmaceutical Resource Discovery, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Guang-Bo Ge
- Laboratory of Pharmaceutical Resource Discovery, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012, China
| | - Lei Feng
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012, China
| | - Johanna Troberg
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Liang-Hai Hu
- College of Life Science, Jilin University, Changchun, China
| | - Jie Hou
- Dalian Medical University, Dalian 116044, China
| | | | - Ping Wang
- Laboratory of Pharmaceutical Resource Discovery, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Zhao-Ming Liu
- Laboratory of Pharmaceutical Resource Discovery, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Moshe Finel
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Jing-Nan Cui
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012, China.
| | - Ling Yang
- Laboratory of Pharmaceutical Resource Discovery, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
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Jia L, Hu C, Wang H, Liu Y, Liu X, Zhang YY, Li W, Wang LX, Cao YF, Fang ZZ. Chirality Influence of Zaltoprofen Towards UDP-Glucuronosyltransferases (UGTs) Inhibition Potential. Chirality 2015; 27:359-63. [PMID: 25903196 DOI: 10.1002/chir.22436] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 01/14/2015] [Accepted: 01/27/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Lin Jia
- First Affiliated Hospital of Liaoning Medical University; Jinzhou Liaoning People's Republic of China
| | - Cuimin Hu
- Tianjin Life Science Research Center and Department of Microbiology, School of Basic Medical Sciences; Tianjin Medical University; Tianjin People's Republic of China
| | - Haina Wang
- College of Pharmaceutical Sciences; Shandong University; Jinan People's Republic of China
| | - Yongzhe Liu
- Department of Toxicology, School of Public Health; Tianjin Medical University; Heping District Tianjin People's Republic of China
| | - Xin Liu
- First Affiliated Hospital of Liaoning Medical University; Jinzhou Liaoning People's Republic of China
| | - Yan-Yan Zhang
- Joint Center for Translational Medicine, Dalian Institute of Chemical Physics; Chinese Academy of Sciences and First Affiliated Hospital of Liaoning Medical University; Dalian People's Republic of China
| | - Wei Li
- Yangzhou University; Yangzhou China
| | - Li-Xuan Wang
- Joint Center for Translational Medicine, Dalian Institute of Chemical Physics; Chinese Academy of Sciences and First Affiliated Hospital of Liaoning Medical University; Dalian People's Republic of China
| | - Yun-Feng Cao
- First Affiliated Hospital of Liaoning Medical University; Jinzhou Liaoning People's Republic of China
- Joint Center for Translational Medicine, Dalian Institute of Chemical Physics; Chinese Academy of Sciences and First Affiliated Hospital of Liaoning Medical University; Dalian People's Republic of China
- Key Laboratory of Contraceptives and Devices Research (NPFPC), Shanghai Engineer and Technology Research Center of Reproductive Health Drug and Devices; Shanghai Institute of Planned Parenthood Research; Shanghai People's Republic of China
| | - Zhong-Ze Fang
- Department of Toxicology, School of Public Health; Tianjin Medical University; Heping District Tianjin People's Republic of China
- Joint Center for Translational Medicine, Dalian Institute of Chemical Physics; Chinese Academy of Sciences and First Affiliated Hospital of Liaoning Medical University; Dalian People's Republic of China
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Novel first-dose adverse drug reactions during a phase I trial of olipudase alfa (recombinant human acid sphingomyelinase) in adults with Niemann-Pick disease type B (acid sphingomyelinase deficiency). Genet Med 2015; 18:34-40. [PMID: 25834946 DOI: 10.1038/gim.2015.24] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Accepted: 01/21/2015] [Indexed: 11/08/2022] Open
Abstract
PURPOSE Enzyme replacement therapy with olipudase alfa (recombinant human acid sphingomyelinase) is being developed for Niemann-Pick disease type B (NPD B). METHODS A single-center, open-label, nonrandomized, single-ascending-dose trial evaluated the safety of intravenous olipudase alfa (0.03-1.0 mg/kg) in 11 adults with NPD B. Patients were monitored in the hospital for 72 h after infusion and had follow-up visits on days 14 and 28. RESULTS Plasma ceramide, a product of sphingomyelin catabolism by olipudase alfa, showed dose-dependent elevations by 6 h postdose, or postinfusion. No serious adverse drug reactions (ADRs) occurred during the study. Acute phase reaction-type ADRs, as evidenced by elevated inflammatory biomarkers (high-sensitivity C-reactive protein, interleukin-8, and calcitonin) and constitutional symptoms (fever, pain, nausea, and/or vomiting) emerged 12-24 h following doses ≥0.3 mg/kg olipudase alfa. Three patients experienced hyperbilirubinemia. The study was terminated after a patient dosed at 1 mg/kg exhibited severe hyperbilirubinemia; he was subsequently diagnosed with Gilbert syndrome. CONCLUSION The maximum tolerated dose of olipudase alfa in adults with NPD B was 0.6 mg/kg. First-dose ADRs were likely induced by elevated concentrations of ceramide (or its downstream derivatives) generated by the catabolism of accumulated sphingomyelin. Within-patient dose escalation to slowly catabolize sphingomyelin stores may be a strategy to mitigate first-dose ADRs in patients with NPD B.Genet Med 18 1, 34-40.
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Guo J, Ni C, Liu X, Liu T. Ganoderic acid B's influence towards the therapeutic window of trifluoperazine (TFP). Afr Health Sci 2015; 15:146-9. [PMID: 25834543 DOI: 10.4314/ahs.v15i1.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Ganoderic acid B is an important bioactive ingredient isolated from Ganoderma lucidum, and exhibits various pharmacological activities. AIMS To investigate the influence of Ganoderic acid B towards the therapeutic window of trifluoperazine (TFP). METHODS In vitro human liver microsomes (HLMs) incubation system was used to determine the inhibition of Ganoderic acid B towards the glucuronidation of trifluoperazine (TFP). RESULTS Ganoderic acid B exerted concentration-dependent inhibition towards the glucuronidation of TFP. Furthermore, Dixon plot was used to determine the inhibition type. The intersection point was located in the second quadrant in Dixon plot, indicating the competitive inhibition of Ganoderic acid B towards TFP glucuronidation. Through fitting the data using competitive nonlinear fitting equation, the inhibition kinetic parameter was calculated to be 56.7 uM. CONCLUSION All this data indicated the potential influence of Ganoderic acid B-containing herbs towards therapeutic window of TFP. Given that the glucuronidation reaction of TFP is the probe reaction of UGT1A4, the data obtained from the present study also indicated the potential influence of Ganoderic acid-containing herbs towards the therapeutic window of drugs mainly undergoing UGT1A4-mediated metabolism.
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Affiliation(s)
- Jun Guo
- Department of Neurology, Tangdu Hospital, the Fourth Military Medical University, Xi'an 710038, P.R. China
| | - Chenming Ni
- Laboratory of Pharmacology, Department of Pharmacy, Jinan Military General Hospital, Jinan 250031, P.R. China
| | - Xiaoyang Liu
- Department of Hepatobiliary Surgery, Jinan Military General Hospital, Jinan 250031, P.R. China
| | - Tao Liu
- Department of Dermatology, Tangdu Hospital, the Fourth Military Medical University, Xi'an 710038, P.R. China
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Abstract
BACKGROUND Experimental studies suggest oxidative stress could lead to the development of hypertension. Serum bilirubin is a major contributor to the antioxidant capacity in blood plasma and has been identified as an independent cardiovascular risk factor in cohort studies. However, data on the relationship between bilirubin and blood pressure are scarce and inconclusive. METHODS We analysed data from the National Health and Nutrition Examination Surveys (NHANES) 1999-2012 (N=31069). Fifty multiple imputed data sets were generated and analysed to avoid selection/confounding bias due to excluding individuals/variables with missing values. A minimal sufficient adjustment set of variables (MSAS) needed to estimate the unconfounded effect of bilirubin on blood pressure and hypertension (systolic/diastolic blood pressure ≥ 140/90 mmHg or using antihypertensive medication) was identified using the back-door criterion and included in all regression models. RESULTS After adjustment for the MSAS variables, systolic blood pressure decreased progressively up to -2.5 mmHg (p<0.001) and the prevalence of hypertension was up to 25% lower (P<0.001) in those with bilirubin ≥ 1.0 mg/dl-the highest two deciles-compared with those with 0.1-0.4 mg/dl-the lowest decile. Sensitivity analyses showed these results were unlikely to be explained by residual confounding or selection bias. CONCLUSIONS High serum bilirubin may decrease the risk of hypertension by inactivating and inhibiting the synthesis of reactive oxygen species in vascular cells. Strategies to boost the bioavailability of circulating and tissue bilirubin or to mimic bilirubin's antioxidant properties could have a significant impact on prevention and control of hypertension as well as coronary heart disease.
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Affiliation(s)
- Lina Wang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Department of Epidemiology and Biostatistics, School of Public Health, Southeast University, Nanjing, China and Department of Population Health Sciences, University of Wisconsin in Madison, Madison, WI, USA Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Department of Epidemiology and Biostatistics, School of Public Health, Southeast University, Nanjing, China and Department of Population Health Sciences, University of Wisconsin in Madison, Madison, WI, USA
| | - Leonelo E Bautista
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Department of Epidemiology and Biostatistics, School of Public Health, Southeast University, Nanjing, China and Department of Population Health Sciences, University of Wisconsin in Madison, Madison, WI, USA
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Watanabe T, Miyake M, Shimizu T, Kamezawa M, Masutomi N, Shimura T, Ohashi R. Utility of bilirubins and bile acids as endogenous biomarkers for the inhibition of hepatic transporters. Drug Metab Dispos 2015; 43:459-66. [PMID: 25581390 DOI: 10.1124/dmd.114.061051] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
It is useful to identify endogenous substrates for the evaluation of drug-drug interactions via transporters. In this study, we investigated the utility of bilirubins, substrates of OATPs and MRP2, and bile acids and substrates of NTCP and BSEP, as biomarkers for the inhibition of transporters. In rats administered 20 and 80 mg/kg rifampicin, the plasma levels of bilirubin glucuronides were elevated, gradually decreased, and almost returned to the baseline level at 24 hours after administration without an elevation of alanine aminotransferase (ALT) and aspartate aminotransferase (AST). This result indicates the transient inhibition of rOatps and/or rMrp2. Although the correlation between free plasma concentrations and IC50 values of rOatps depended on the substrates used in the in vitro studies, the inhibition of rOatps by rifampicin was confirmed in the in vivo study using valsartan as a substrate of rOatps. In rats administered 10 and 30 mg/kg cyclosporin A, the plasma levels of bile acids were elevated and persisted for up to 24 hours after administration without an elevation of ALT and AST. This result indicates the continuous inhibition of rNtcp and/or rBsep, although there were differences between the free plasma or liver concentrations and IC50 values of rNtcp or rBsep, respectively. This study suggests that the monitoring of bilirubins and bile acids in plasma is useful in evaluating the inhibitory potential of their corresponding transporters.
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Affiliation(s)
- Tomoko Watanabe
- DMPK Research Laboratory, Research Division, Mitsubishi Tanabe Pharma Corporation, Saitama, Japan (T.W., M.K., Ta.S., R.O.); and Safety Research Laboratory, Research Division, Mitsubishi Tanabe Pharma Corporation, Chiba, Japan (M.M., To.S., N.M.)
| | - Manami Miyake
- DMPK Research Laboratory, Research Division, Mitsubishi Tanabe Pharma Corporation, Saitama, Japan (T.W., M.K., Ta.S., R.O.); and Safety Research Laboratory, Research Division, Mitsubishi Tanabe Pharma Corporation, Chiba, Japan (M.M., To.S., N.M.)
| | - Toshinobu Shimizu
- DMPK Research Laboratory, Research Division, Mitsubishi Tanabe Pharma Corporation, Saitama, Japan (T.W., M.K., Ta.S., R.O.); and Safety Research Laboratory, Research Division, Mitsubishi Tanabe Pharma Corporation, Chiba, Japan (M.M., To.S., N.M.)
| | - Miho Kamezawa
- DMPK Research Laboratory, Research Division, Mitsubishi Tanabe Pharma Corporation, Saitama, Japan (T.W., M.K., Ta.S., R.O.); and Safety Research Laboratory, Research Division, Mitsubishi Tanabe Pharma Corporation, Chiba, Japan (M.M., To.S., N.M.)
| | - Naoya Masutomi
- DMPK Research Laboratory, Research Division, Mitsubishi Tanabe Pharma Corporation, Saitama, Japan (T.W., M.K., Ta.S., R.O.); and Safety Research Laboratory, Research Division, Mitsubishi Tanabe Pharma Corporation, Chiba, Japan (M.M., To.S., N.M.)
| | - Takesada Shimura
- DMPK Research Laboratory, Research Division, Mitsubishi Tanabe Pharma Corporation, Saitama, Japan (T.W., M.K., Ta.S., R.O.); and Safety Research Laboratory, Research Division, Mitsubishi Tanabe Pharma Corporation, Chiba, Japan (M.M., To.S., N.M.)
| | - Rikiya Ohashi
- DMPK Research Laboratory, Research Division, Mitsubishi Tanabe Pharma Corporation, Saitama, Japan (T.W., M.K., Ta.S., R.O.); and Safety Research Laboratory, Research Division, Mitsubishi Tanabe Pharma Corporation, Chiba, Japan (M.M., To.S., N.M.)
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Abstract
Tuberculosis is still a major problem in some developed and developing countries. The poor compliance to the treatment of tuberculosis patients due to the adverse events was supposed to be an important factor contributing to the high prevalence. This review aims to clarify the role and the pharmacological mechanism of the genes involved in the isoniazid-induced hepatotoxicity. We selected English articles of studies in human from PubMed up to May 2014 with the keywords pharmacogenetic, isoniazid and hepatotoxicity, N-acetyl transferase 2 (NAT2), CYP2E1 and glutathione S transferase (GST). Polymorphisms of NAT2, CYP2E1 and GST1 could increase patients' susceptibility to isoniazid-induced hepatotoxicity. The rapid acetylators of NAT2 and rapid metabolizers of CYP2E1 showed increased concentrations of hepatotoxic metabolites. However, the rapid metabolizers of GST1 could decrease the concentration of hepatotoxic metabolites. Some studies of human leukocyte antigen (HLA), Uridine 5'-dipphospho (UDP) glucuronosyltransferase (UGT), nitric oxide synthase (NOS), Broad complex, Tramtrack, Bric-a-brac (BTB) and cap'n'collar type of basic region leucine zipper factor family (CNC) homolog (BACH) and Maf basic leucine zipper protein (MAFK) polymorphisms showed their roles in isoniazid-induced hepatotoxicity by modifying the expression of antioxidant enzymes. A better insight into the role of polymorphisms of HLA, UGT, NOS, BACH and MAFK in addition to NAT2, CYP2E1 and GST1 in the hepatotoxicity of isoniazid may support physicians in monitoring patients hepatotoxicity symptoms and laboratory data and optimizing pharmacotherapy. Future studies about the role of such polymorphisms in different ethnicities are suggested.
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