51
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Zhang D, Wei C, Hop CECA, Wright MR, Hu M, Lai Y, Khojasteh SC, Humphreys WG. Intestinal Excretion, Intestinal Recirculation, and Renal Tubule Reabsorption Are Underappreciated Mechanisms That Drive the Distribution and Pharmacokinetic Behavior of Small Molecule Drugs. J Med Chem 2021; 64:7045-7059. [PMID: 34010555 DOI: 10.1021/acs.jmedchem.0c01720] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Drug reabsorption following biliary excretion is well-known as enterohepatic recirculation (EHR). Renal tubular reabsorption (RTR) following renal excretion is also common but not easily assessed. Intestinal excretion (IE) and enteroenteric recirculation (EER) have not been recognized as common disposition mechanisms for metabolically stable and permeable drugs. IE and intestinal reabsorption (IR:EHR/EER), as well as RTR, are governed by dug concentration gradients, passive diffusion, active transport, and metabolism, and together they markedly impact disposition and pharmacokinetics (PK) of small molecule drugs. Disruption of IE, IR, or RTR through applications of active charcoal (AC), transporter knockout (KO), and transporter inhibitors can lead to changes in PK parameters. The impacts of intestinal and renal reabsorption on PK are under-appreciated. Although IE and EER/RTR can be an intrinsic drug property, there is no apparent strategy to optimize compounds based on this property. This review seeks to improve understanding and applications of IE, IR, and RTR mechanisms.
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Affiliation(s)
- Donglu Zhang
- Department of Drug Metabolism and Pharmacokinetics, Genentech, 1 DNA Way, South San Francisco, California 94080, United States
| | - Cong Wei
- Drug Metabolism and Pharmacokinetics, Biogen, 225 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Cornelis E C A Hop
- Department of Drug Metabolism and Pharmacokinetics, Genentech, 1 DNA Way, South San Francisco, California 94080, United States
| | - Matthew R Wright
- Department of Drug Metabolism and Pharmacokinetics, Genentech, 1 DNA Way, South San Francisco, California 94080, United States
| | - Ming Hu
- University of Houston College of Pharmacy, 4849 Calhoun Road, Houston, Texas 77204, United States
| | - Yurong Lai
- Drug Metabolism and Pharmacokinetics, Gilead Sciences, 333 Lakeside Drive, Foster City, California 94404, United States
| | - S Cyrus Khojasteh
- Department of Drug Metabolism and Pharmacokinetics, Genentech, 1 DNA Way, South San Francisco, California 94080, United States
| | - W Griff Humphreys
- Aranmore Pharma Consulting, 11 Andrew Drive, Lawrenceville, New Jersey 08648, United States
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52
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Oleacein Intestinal Permeation and Metabolism in Rats Using an In Situ Perfusion Technique. Pharmaceutics 2021; 13:pharmaceutics13050719. [PMID: 34068871 PMCID: PMC8153610 DOI: 10.3390/pharmaceutics13050719] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/11/2021] [Accepted: 05/12/2021] [Indexed: 12/27/2022] Open
Abstract
Oleacein (OLEA) is one of the most important phenolic compounds in extra virgin olive oil in terms of concentration and health-promoting properties, yet there are insufficient data on its absorption and metabolism. Several non-human models have been developed to assess the intestinal permeability of drugs, among them, single-pass intestinal perfusion (SPIP), which is commonly used to investigate the trans-membrane transport of drugs in situ. In this study, the SPIP model and simultaneous luminal blood sampling were used to study the absorption and metabolism of OLEA in rats. Samples of intestinal fluid and mesenteric blood were taken at different times and the ileum segment was excised at the end of the experiment for analysis by LC-ESI-LTQ-Orbitrap-MS. OLEA was mostly metabolized by phase I reactions, undergoing hydrolysis and oxidation, and metabolite levels were much higher in the plasma than in the lumen. The large number of metabolites identified and their relatively high abundance indicates an important intestinal first-pass effect during absorption. According to the results, OLEA is well absorbed in the intestine, with an intestinal permeability similar to that of the highly permeable model compound naproxen. No significant differences were found in the percentage of absorbed OLEA and naproxen (48.98 ± 12.27% and 43.96 ± 7.58%, respectively).
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Seneviratne HK, Tillotson J, Lade JM, Bekker LG, Li S, Pathak S, Justman J, Mgodi N, Swaminathan S, Sista N, Farrior J, Richardson P, Hendrix CW, Bumpus NN. Metabolism of Long-Acting Rilpivirine After Intramuscular Injection: HIV Prevention Trials Network Study 076 (HPTN 076). AIDS Res Hum Retroviruses 2021; 37:173-183. [PMID: 33191765 DOI: 10.1089/aid.2020.0155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
A long-acting injectable formulation of rilpivirine (RPV), a non-nucleoside reverse transcriptase inhibitor, is currently under investigation for use in human immunodeficiency virus (HIV) maintenance therapy. We previously characterized RPV metabolism after oral dosing and identified seven metabolites: four metabolites resulting from mono- or dioxygenation of the 2,6-dimethylphenyl ring itself or either of the two methyl groups located on that ring, one N-linked RPV glucuronide conjugate, and two O-linked RPV glucuronides produced via glucuronidation of mono- and dihydroxymethyl metabolites. However, as is true for most drugs, the metabolism of RPV after injection has yet to be reported. The phase II clinical trial HPTN 076 enrolled 136 HIV-uninfected women and investigated the safety and acceptability of long-acting injectable RPV for use in HIV pre-exposure prophylaxis. Through the analysis of plasma samples from 80 of these participants in the active product arm of the study, we were able to detect 2 metabolites after intramuscular injection of long-acting RPV, 2-hydroxymethyl-RPV, and RPV N-glucuronide. Of the total of 80 individuals, 72 participants exhibited detectable levels of 2-hydroxymethyl-RPV in plasma samples whereas RPV N-glucuronide was detectable in plasma samples of 78 participants. In addition, RPV N-glucuronide was detectable in rectal fluid, cervicovaginal fluid, and vaginal tissue. To investigate potential genetic variation in genes encoding enzymes relevant to RPV metabolism, we isolated genomic DNA and performed next-generation sequencing of CYP3A4, CYP3A5, UGT1A1 and UGT1A4. From these analyses, four missense variants were detected for CYP3A4 whereas one missense variant and one frameshift variant were detected for CYP3A5. A total of eight missense variants of UGT1A4 were detected, whereas two variants were detected for UGT1A1; however, these variants did not appear to account for the observed interindividual variability in metabolite levels. These findings provide insight into the metabolism of long-acting RPV and contribute to an overall understanding of metabolism after oral dosing versus injection. ClinicalTrials.gov Identifier: NCT02165202.
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Affiliation(s)
- Herana Kamal Seneviratne
- Division of Clinical Pharmacology, Department of Medicine, the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Joseph Tillotson
- Division of Clinical Pharmacology, Department of Medicine, the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Julie M. Lade
- Department of Pharmacology and Molecular Sciences, the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Linda-Gail Bekker
- The Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
| | - Sue Li
- Statistical Center for HIV/AIDS Research & Prevention (SCHARP), Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Subash Pathak
- Statistical Center for HIV/AIDS Research & Prevention (SCHARP), Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Jessica Justman
- ICAP at Columbia, Mailman School of Public Health, and Division of Infectious Diseases, Vagelos College of Physicians and Surgeons, Columbia University, New York, New York, USA
| | - Nyaradzo Mgodi
- University of Zimbabwe–University of California, San Francisco (UZ-UCSF) Collaborative Research Programme, Harare, Zimbabwe
| | - Shobha Swaminathan
- Department of Medicine, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | | | | | - Paul Richardson
- Department of Pathology, the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Craig W. Hendrix
- Division of Clinical Pharmacology, Department of Medicine, the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Namandje N. Bumpus
- Division of Clinical Pharmacology, Department of Medicine, the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Pharmacology and Molecular Sciences, the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Sulfation predominates the pharmacokinetics, metabolism, and excretion of forsythin in humans: major enzymes and transporters identified. Acta Pharmacol Sin 2021; 42:311-322. [PMID: 32860005 DOI: 10.1038/s41401-020-0481-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 07/13/2020] [Indexed: 12/16/2022] Open
Abstract
Forsythin extracted from Forsythiae Fructus is widely used to treat fever caused by the common cold or influenza in China, Japan and Korea. The present study aimed to analyze the pharmacokinetics, metabolism and excretion routes of forsythin in humans and determine the major enzymes and transporters involved in these processes. After a single oral administration, forsythin underwent extensive metabolism via hydrolysis and further sulfation. In total, 3 of the 13 metabolites were confirmed by comparison to reference substances, i.e., aglycone M1, M1 sulfate (M2), and M1 glucuronide (M7). Hydrolysis was the initial and main metabolic pathway of the parent compound, followed by extensive sulfation to form M2 and a reduced level of glucuronidation to form M7. In addition, the plasma exposure of M2 and M7 were 86- and 4.2-fold higher than that of forsythin. Within 48 h, ~75.1% of the administered dose was found in urine, with M2 accounting for 71.6%. Further phenotyping experiments revealed that sulfotransferase 1A1 and UDP-glucuronosyltransferase 1A8 were the most active hepatic enzymes involved in the formation of M2 and M7, respectively. The in vitro kinetic study provided direct evidence that M1 showed a preference for sulfation. Sulfated conjugate M2 was identified as a specific substrate of organic anion transporter 3, which could facilitate the renal excretion of M2. Altogether, our study demonstrated that sulfation dominated the metabolism and pharmacokinetics of forsythin, while the sulfate conjugate was excreted mainly in the urine.
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Seneviratne HK, Hamlin AN, Li S, Grinsztejn B, Dawood H, Liu AY, Kuo I, Hosseinipour MC, Panchia R, Cottle L, Chau G, Adeyeye A, Rinehart AR, McCauley M, Eron JS, Cohen MS, Landovitz RJ, Hendrix CW, Bumpus NN. Identification of Novel UGT1A1 Variants Including UGT1A1 454C>A through the Genotyping of Healthy Participants of the HPTN 077 Study. ACS Pharmacol Transl Sci 2021; 4:226-239. [PMID: 33615175 PMCID: PMC7888308 DOI: 10.1021/acsptsci.0c00181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Indexed: 11/30/2022]
Abstract
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Cabotegravir (CAB) is an integrase strand-transfer inhibitor of HIV that has proven
effective for HIV treatment and prevention in a long-acting injectable formulation,
typically preceded by an oral formulation lead-in phase. Previous in
vitro studies have demonstrated that CAB is primarily metabolized via
glucuronidation by uridine diphosphate glucuronosyltransferase (UGT) 1A1 and 1A9. In
this study, we performed next-generation sequencing of genomic DNA isolated from the
HPTN 077 participants to explore the variants within UGT1A1 and
UGT1A9. Additionally, to enable correlation of
UGT1A1 and UGT1A9 genotypes with plasma
CAB-glucuronide levels, we quantified glucuronidated CAB following both oral
administration of CAB and intramuscular injection of long-acting CAB. From these
studies, 48 previously unreported variants of UGT1A1 and
UGT1A9 were detected. Notably, 5/68 individuals carried a
UGT1A1 454C>A variant that resulted in amino acid substitution
P152T, and the use of in silico tools predicted a deleterious effect of
the P152T substitution. Thus, the impact of this mutant on a range of UGT1A1 substrates
was tested using a COS-7 cell-based assay. The glucuronide conjugates of CAB,
dolutegravir, and raltegravir, were not formed in the COS-7 cells expressing the UGT1A1
P152T mutant. Further, formation of glucuronides of raloxifene and
7-ethyl-10-hydroxycamptothecin were reduced in the cells expressing the UGT1A1 P152T
mutant. Using the same approach, we tested the activities of two UGT1A9 mutants, UGT1A9
H217Y and UGT1A9 R464G, and found that these mutations were tolerated and decreased
function, respectively. These data provide insight into previously unreported genetic
variants of UGT1A1 and UGT1A9.
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Affiliation(s)
- Herana Kamal Seneviratne
- Department of Medicine, Division of Clinical Pharmacology, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Allyson N Hamlin
- Department of Medicine, Division of Clinical Pharmacology, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Sue Li
- Statistical Center for HIV/AIDS Research and Prevention, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, United States
| | - Beatriz Grinsztejn
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro 21040-900, Brazil
| | - Halima Dawood
- Centre for the AIDS Programme of Research in South Africa, University of KwaZulu Natal, Durban 4041, South Africa
| | - Albert Y Liu
- Bridge HIV, Population Health Division, San Francisco Department of Health, San Francisco, California 94102, United States
| | - Irene Kuo
- Department of Epidemiology and Biostatistics, Milken Institute School of Public Health, George Washington University, Washington, District of Columbia 20052, United States
| | | | - Ravindre Panchia
- Perinatal HIV Research Unit, Chris Hani Baragwanath Hospital, Soweto 1864, South Africa
| | - Leslie Cottle
- Statistical Center for HIV/AIDS Research and Prevention, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, United States
| | - Gordon Chau
- Statistical Center for HIV/AIDS Research and Prevention, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, United States
| | - Adeola Adeyeye
- Division of AIDS, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland 20852, United States
| | - Alex R Rinehart
- ViiV Healthcare, Durham, North Carolina 27709, United States
| | | | - Joseph S Eron
- University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Myron S Cohen
- University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Raphael J Landovitz
- UCLA Center for Clinical AIDS Research and Education, Los Angeles, California 90035, United States
| | - Craig W Hendrix
- Department of Medicine, Division of Clinical Pharmacology, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Namandjé N Bumpus
- Department of Pharmacology and Molecular Sciences, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
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56
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Choueiri TK, Kaelin WG. Targeting the HIF2-VEGF axis in renal cell carcinoma. Nat Med 2020; 26:1519-1530. [PMID: 33020645 DOI: 10.1038/s41591-020-1093-z] [Citation(s) in RCA: 235] [Impact Index Per Article: 58.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 09/02/2020] [Indexed: 02/08/2023]
Abstract
Insights into the role of the tumor suppressor pVHL in oxygen sensing motivated the testing of drugs that target the transcription factor HIF or HIF-responsive growth factors, such as VEGF, for the treatment of cancers caused by VHL inactivation, such as clear-cell renal cell carcinoma (ccRCC). Multiple VEGF inhibitors are now approved for the treatment of ccRCC, and a HIF2α inhibitor has advanced to phase 3 development for this disease. These inhibitors are now also increasingly combined with immune-checkpoint blockers. In this Perspective, we describe the understanding of the mechanisms of oxygen sensing and hypoxia signaling that resulted in the development of HIF2α-targeted therapies for patients with VHL-associated tumors. We also present future directions for extending the use of these therapies to other cancers.
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Affiliation(s)
- Toni K Choueiri
- Dana-Farber Cancer Institute, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
| | - William G Kaelin
- Dana-Farber Cancer Institute, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA. .,Howard Hughes Medical Institute, Chevy Chase, MD, USA.
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57
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Bui D, Li L, Yin T, Wang X, Gao S, You M, Singh R, Hu M. Pharmacokinetic and Metabolic Profiling of Key Active Components of Dietary Supplement Magnolia officinalis Extract for Prevention against Oral Carcinoma. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:6576-6587. [PMID: 32348135 PMCID: PMC7604171 DOI: 10.1021/acs.jafc.0c01475] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Among the three key active components (KACs) of Magnolia officinalis bark extract (ME), 4-O-methylhonokiol and honokiol showed higher antiproliferation activities than magnolol in the oral squamous cancer cell lines (Cal-27, SCC-9, and SCC-4). Oral bioavailabilities of ME-KACs were poor (<0.2%) in C57BL/6 mice primarily due to their extensive first-pass phase II metabolism and poor solubilities. High plasma concentration of glucuronides upon oral administration and faster rate of glucuronidation by intestinal microsomes indicated intestine as one of the major metabolic organs for ME-KACs. Despite the increase in bioavailabilities of ME-KACs (∼8-10-fold) and decrease in AUC0-24 of glucuronides (∼10-fold) upon ME solubility enhancement, systemic exposure of ME-KACs failed to improve meaningfully. In conclusion, we propose a quality-controlled and chemically defined ME mixture, containing an optimized ratio of three KACs, delivered locally in the oral cavity as the most promising strategy for ME use as an oral cancer chemopreventive dietary supplement.
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Affiliation(s)
- Dinh Bui
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas
| | - Li Li
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas
| | - Taijun Yin
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas
| | - Xinli Wang
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas
- Fujian Medical University Union Hospital, Gulou District, Fuzhou City, Fujian, China
| | - Song Gao
- Department of Pharmaceutical Sciences, Texas Southern University, Houston, Texas
| | - Ming You
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Rashim Singh
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas
- Corresponding Authors: [Tel: (832) 842-8320; Fax: (713) 743-1884; ] [Tel: (832) 518-9110; ]
| | - Ming Hu
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas
- Corresponding Authors: [Tel: (832) 842-8320; Fax: (713) 743-1884; ] [Tel: (832) 518-9110; ]
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58
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Xu L, Zheng R, Xie P, Guo Q, Ji H, Li T. Dysregulation of UDP-glucuronosyltransferases in CCl 4 induced liver injury rats. Chem Biol Interact 2020; 325:109115. [PMID: 32380060 DOI: 10.1016/j.cbi.2020.109115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 04/15/2020] [Accepted: 04/23/2020] [Indexed: 10/24/2022]
Abstract
UDP-glucuronosyltransferases (UGTs) are a family of phase II drug metabolizing enzymes that catalyze glucuronidation of numerous endogenous and exogenous substrates. Carbon tetrachloride (CCl4) is widely used to develop liver injuries mimicking human liver diseases. However, effects of CCl4 on the expression and activities of UGTs and the mechanism have not been fully elucidated. The present study aims to elucidate the dysregulation patterns of major UGTs induced by CCl4. Biochemical and histopathological results showed that CCl4 exerted hepatotoxicity in rats. The mRNA levels of UGTs were all significantly reduced in acute liver injury rats. However, mRNA levels of UGT1A1, 1A6, 2B1 and 2B2 were up-regulated while the UGT2B3, 2B6 and 2B12 levels were reduced in chronic CCl4-induced liver fibrosis rats. The protein expression of UGT1A1, 1A6 and 2B were decreased in acute liver injury rats. UGT1A1 and 1A6 proteins were increased, whereas UGT2B protein was reduced in liver fibrosis rats. In addition, CCl4 inhibited the enzyme activities of UGTs in rats. Moreover, the dysregulation of UGTs was accompanied by the decreased mRNA expression of Nrf2, CAR, FXR, PXR, PPAR-α and their corresponding target genes, except for Nrf2, HO-1, AhR and CYP1A1 in liver fibrosis rats. These findings suggest that dysregulation of UGTs under CCl4 exposure is isoform-specific, which could have a complex impact on drug efficacy and endogenous metabolism. Different exposure durations of CCl4 (single vs multiple doses) could have differential effects on rat hepatic UGTs expression.
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Affiliation(s)
- Lijie Xu
- School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China; Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, 200080, China.
| | - Rongyao Zheng
- School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, Jiangsu, China.
| | - Peng Xie
- School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, Jiangsu, China.
| | - Qianqian Guo
- Department of Pharmacy, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, 450000, China
| | - Hui Ji
- School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, Jiangsu, China.
| | - Tingting Li
- School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, Jiangsu, China.
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59
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Bachmann T, Schnurr C, Zainer L, Rychlik M. Chemical synthesis of 5'-β-glycoconjugates of vitamin B 6. Carbohydr Res 2020; 489:107940. [PMID: 32062177 DOI: 10.1016/j.carres.2020.107940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 02/03/2020] [Accepted: 02/04/2020] [Indexed: 10/25/2022]
Abstract
Various 5'-β-saccharides of pyridoxine, namely the mannoside, galactoside, arabinoside, maltoside, cellobioside and glucuronide, were synthesized chemically according to Koenigs-Knorr conditions using α4,3-O-isopropylidene pyridoxine and the respective acetobromo glycosyl donors with AgOTf (3.0 eq.) and NIS (3.0 eq.) as promoters at 0 °C. Furthermore, 5'-β-[13C6]-labeled pyridoxine glucoside (PNG) was prepared starting from [13C6]-glucose and pyridoxine. Additionally, two strategies were examined for the synthesis of 5'-β-pyridoxal glucoside (PLG).
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Affiliation(s)
- Thomas Bachmann
- Chair of Analytical Food Chemistry, Technical University of Munich, Maximus-von-Imhof-Forum 2, 85354, Freising, Germany.
| | - Christian Schnurr
- Chair of Analytical Food Chemistry, Technical University of Munich, Maximus-von-Imhof-Forum 2, 85354, Freising, Germany.
| | - Laura Zainer
- Chair of Analytical Food Chemistry, Technical University of Munich, Maximus-von-Imhof-Forum 2, 85354, Freising, Germany.
| | - Michael Rychlik
- Chair of Analytical Food Chemistry, Technical University of Munich, Maximus-von-Imhof-Forum 2, 85354, Freising, Germany.
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60
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Ancuceanu R, Dinu M, Dinu-Pirvu C, Anuţa V, Negulescu V. Pharmacokinetics of B-Ring Unsubstituted Flavones. Pharmaceutics 2019; 11:E370. [PMID: 31374885 PMCID: PMC6723510 DOI: 10.3390/pharmaceutics11080370] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 07/23/2019] [Accepted: 07/23/2019] [Indexed: 02/07/2023] Open
Abstract
B-ring unsubstituted flavones (of which the most widely known are chrysin, baicalein, wogonin, and oroxylin A) are 2-phenylchromen-4-one molecules of which the B-ring is devoid of any hydroxy, methoxy, or other substituent. They may be found naturally in a number of herbal products used for therapeutic purposes, and several have been designed by researchers and obtained in the laboratory. They have generated interest in the scientific community for their potential use in a variety of pathologies, and understanding their pharmacokinetics is important for a grasp of their optimal use. Based on a comprehensive survey of the relevant literature, this paper examines their absorption (with deglycosylation as a preliminary step) and their fate in the body, from metabolism to excretion. Differences among species (inter-individual) and within the same species (intra-individual) variability have been examined based on the available data, and finally, knowledge gaps and directions of future research are discussed.
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Affiliation(s)
- Robert Ancuceanu
- Department of Pharmaceutical Botany and Cell Biology, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Mihaela Dinu
- Department of Pharmaceutical Botany and Cell Biology, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania.
| | - Cristina Dinu-Pirvu
- Department of Physical Chemistry and Colloidal Chemistry, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 020956 Bucharest 020956, Romania
| | - Valentina Anuţa
- Department of Physical Chemistry and Colloidal Chemistry, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 020956 Bucharest 020956, Romania
| | - Vlad Negulescu
- Department of Toxicology, Clinical Pharmacology and Psychopharmacology, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania
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61
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Whalen ME, Kajubi R, Chamankhah N, Huang L, Orukan F, Wallender E, Kamya MR, Dorsey G, Jagannathan P, Rosenthal PJ, Mwebaza N, Aweeka FT. Reduced Exposure to Piperaquine, Compared to Adults, in Young Children Receiving Dihydroartemisinin-Piperaquine as Malaria Chemoprevention. Clin Pharmacol Ther 2019; 106:1310-1318. [PMID: 31173649 DOI: 10.1002/cpt.1534] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 05/07/2019] [Indexed: 11/10/2022]
Abstract
Dihydroartemisinin (DHA)-piperaquine is being evaluated as intermittent preventive therapy for malaria, but dosing has not been optimized for children. We assessed exposure to DHA and piperaquine in Ugandan children at two ages during infancy. Intensive sampling was performed in 32 children at 32 weeks of age, 31 children at 104 weeks, and 30 female adult controls. Compared with adults, DHA area under the concentration-time curve (AUC0-8 hr ) was 52% higher at 32 weeks and comparable at 104 weeks. Compared with adults, piperaquine AUC0-21 d was 35% lower at 32 weeks and 53% lower at 104 weeks. Terminal piperaquine concentrations on days 7, 14, and 21 were lower in children compared with adults and lower at 104 compared with 32 weeks. Piperaquine exposure was lower in young children compared with adults, and lower at 104 compared with 32 weeks of age, suggesting a need for age-based DHA-piperaquine dose optimization for chemoprevention.
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Affiliation(s)
- Meghan E Whalen
- Department of Clinical Pharmacy, University of California San Francisco, San Francisco General Hospital, San Francisco, California, USA
| | - Richard Kajubi
- Infectious Disease Research Collaboration, Makerere University College of Health Sciences, Kampala, Uganda.,Department of Pharmacology and Therapeutics, Makerere University College of Health Sciences, Kampala, Uganda
| | - Nona Chamankhah
- Department of Pharmacy, Rady Children's Hospital, San Diego, California, USA
| | - Liusheng Huang
- Department of Clinical Pharmacy, University of California San Francisco, San Francisco General Hospital, San Francisco, California, USA
| | - Francis Orukan
- Infectious Disease Research Collaboration, Makerere University College of Health Sciences, Kampala, Uganda
| | - Erika Wallender
- Department of Medicine, University of California San Francisco, San Francisco General Hospital, San Francisco, California, USA
| | - Moses R Kamya
- Infectious Disease Research Collaboration, Makerere University College of Health Sciences, Kampala, Uganda
| | - Grant Dorsey
- Department of Medicine, University of California San Francisco, San Francisco General Hospital, San Francisco, California, USA
| | | | - Philip J Rosenthal
- Department of Medicine, University of California San Francisco, San Francisco General Hospital, San Francisco, California, USA
| | - Norah Mwebaza
- Infectious Disease Research Collaboration, Makerere University College of Health Sciences, Kampala, Uganda.,Department of Pharmacology and Therapeutics, Makerere University College of Health Sciences, Kampala, Uganda
| | - Francesca T Aweeka
- Department of Clinical Pharmacy, University of California San Francisco, San Francisco General Hospital, San Francisco, California, USA
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Patel M, Eberl HC, Wolf A, Pierre E, Polli JW, Zamek-Gliszczynski MJ. Mechanistic Basis of Cabotegravir-Glucuronide Disposition in Humans. J Pharmacol Exp Ther 2019; 370:269-277. [PMID: 31175220 DOI: 10.1124/jpet.119.258384] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 06/06/2019] [Indexed: 12/15/2022] Open
Abstract
Cabotegravir, a novel integrase inhibitor under development for treatment and prevention of HIV, is primarily metabolized by UDP-glucuronosyltransferase (UGT)1A1 and UGT1A9 to a direct ether glucuronide metabolite. The aim of these studies was to elucidate the mechanistic basis of cabotegravir-glucuronide disposition in humans. Cabotegravir glucuronidation was predominantly hepatic (>95%) with minimal intestinal and renal contribution. Rat liver perfusions demonstrated that cabotegravir-glucuronide formed in the liver undergoes comparable biliary and sinusoidal excretion, consistent with high concentrations of the glucuronide in human bile and urine. Cabotegravir-glucuronide biliary excretion was mediated by multidrug resistance-associated protein (MRP)2 (not transported by breast cancer resistance protein or P-glycoprotein), whereas hepatic basolateral excretion into sinusoidal blood was via both MRP3 [fraction transport (Ft) = 0.81] and MRP4 (Ft = 0.19). Surprisingly, despite high urinary recovery of hepatically-formed cabotegravir-glucuronide, metabolite levels in circulation were negligible, a phenomenon consistent with rapid metabolite clearance. Cabotegravir-glucuronide was transported by hepatic uptake transporters organic anion-transporting (OAT) polypeptide (OATP)1B1 and OATP1B3; however, metabolite clearance by hepatic uptake from circulation was low (2.7% of hepatic blood flow) and unable to explain the minimal systemic exposure. Instead, circulating cabotegravir-glucuronide undergoes efficient renal clearance, where uptake into the proximal tubule would be mediated by OAT3 (not transported by OAT1), and subsequent secretion into urine by MRP2 (Ft = 0.66) and MRP4 (Ft = 0.34). These studies provide mechanistic insight into the disposition of cabotegravir-glucuronide, a hepatically-formed metabolite with appreciable urinary recovery and minimal systemic exposure, including fractional contribution of redundant transporters to any given process based on quantitative proteomics. SIGNIFICANCE STATEMENT: The role of membrane transporters in metabolite disposition, especially glucuronides, and as sites of unexpected drug-drug interactions, which alter drug efficacy and safety, has been established. Cabotegravir-glucuronide, formed predominantly by direct glucuronidation of parent drug in liver, was the major metabolite recovered in human urine (27% of oral dose) but was surprisingly not detected in systemic circulation. To our knowledge, this is the first mechanistic description of this phenomenon for a major hepatically-formed metabolite to be excreted in the urine to a large extent, but not circulate at detectable levels. The present study elucidates the mechanistic basis of cabotegravir-glucuronide disposition in humans. Specific hepatic and renal transporters involved in the disposition of cabotegravir-glucuronide, with their fractional contribution, have been provided.
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Affiliation(s)
- Mitesh Patel
- Mechanistic Safety and Disposition (M.P., J.W.P., M.J.Z.-G.) and Bioanalysis, Immunogenicity, and Biomarkers (E.P.), GlaxoSmithKline, King of Prussia, Pennsylvania; and Cellzome, a GlaxoSmithKline Company, Heidelberg, Germany (H.C.E., A.W.)
| | - H Christian Eberl
- Mechanistic Safety and Disposition (M.P., J.W.P., M.J.Z.-G.) and Bioanalysis, Immunogenicity, and Biomarkers (E.P.), GlaxoSmithKline, King of Prussia, Pennsylvania; and Cellzome, a GlaxoSmithKline Company, Heidelberg, Germany (H.C.E., A.W.)
| | - Andrea Wolf
- Mechanistic Safety and Disposition (M.P., J.W.P., M.J.Z.-G.) and Bioanalysis, Immunogenicity, and Biomarkers (E.P.), GlaxoSmithKline, King of Prussia, Pennsylvania; and Cellzome, a GlaxoSmithKline Company, Heidelberg, Germany (H.C.E., A.W.)
| | - Esaie Pierre
- Mechanistic Safety and Disposition (M.P., J.W.P., M.J.Z.-G.) and Bioanalysis, Immunogenicity, and Biomarkers (E.P.), GlaxoSmithKline, King of Prussia, Pennsylvania; and Cellzome, a GlaxoSmithKline Company, Heidelberg, Germany (H.C.E., A.W.)
| | - Joseph W Polli
- Mechanistic Safety and Disposition (M.P., J.W.P., M.J.Z.-G.) and Bioanalysis, Immunogenicity, and Biomarkers (E.P.), GlaxoSmithKline, King of Prussia, Pennsylvania; and Cellzome, a GlaxoSmithKline Company, Heidelberg, Germany (H.C.E., A.W.)
| | - Maciej J Zamek-Gliszczynski
- Mechanistic Safety and Disposition (M.P., J.W.P., M.J.Z.-G.) and Bioanalysis, Immunogenicity, and Biomarkers (E.P.), GlaxoSmithKline, King of Prussia, Pennsylvania; and Cellzome, a GlaxoSmithKline Company, Heidelberg, Germany (H.C.E., A.W.)
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63
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Lan B, Ma F, Han M, Chen S, Wang W, Li Q, Fan Y, Luo Y, Cai R, Wang J, Yuan P, Zhang P, Li Q, Xu B. The Effect of Polymorphism in UGT1A4 on Clinical Outcomes of Adjuvant Tamoxifen Therapy for Patients With Breast Cancer in China. Clin Breast Cancer 2019; 19:e370-e375. [DOI: 10.1016/j.clbc.2018.12.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 11/29/2018] [Accepted: 12/09/2018] [Indexed: 11/30/2022]
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64
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Li Y, Song W, Ou X, Luo G, Xie Y, Sun R, Wang Y, Qi X, Hu M, Liu Z, Zhu L. Breast Cancer Resistance Protein and Multidrug Resistance Protein 2 Determine the Disposition of Esculetin-7-O-Glucuronide and 4-Methylesculetin-7-O-Glucuronide. Drug Metab Dispos 2019; 47:203-214. [PMID: 30602435 DOI: 10.1124/dmd.118.083493] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Accepted: 12/27/2018] [Indexed: 01/02/2023] Open
Abstract
Esculetin (ET)-7-O-glucuronide (ET-G) and 4-methylesculetin (4-ME)-7-O-glucuronide (4-ME-G) are the main glucuronide of ET and 4-ME, respectively. The disposition mediated by efflux transporters for glucuronide has significant influence on the pharmacokinetic profile and efficacy of bioactive compounds. In the current study, transporter gene knockout mice and Caco-2 cells were used to explore the effects of breast cancer resistance protein (BCRP) and multidrug resistance-associated protein 2 (MRP2) on the disposition of ET-G and 4-ME-G. After oral or i.v. administration of ET and 4-ME, the area under the plasma concentration-time curve from time 0 to the last data point or infinity values of ET, 4-ME, and their glucuronides (ET-G and 4-ME-G) were remarkably and significantly increased in most Bcrp1-/- and Mrp2-/- mice compared with those in wild-type FVB mice (P < 0.05). These results were accompanied with a significant increase of maximum plasma concentration values (P < 0.05). In Caco-2 monolayers, the efflux and clearance rates of ET-G and 4-ME-G were markedly reduced by the BCRP inhibitor Ko143 and MRP2 inhibitor MK571 on the apical side (P < 0.05). In an intestinal perfusion study, the excretion of ET-G was significantly decreased in perfusate and increased in plasma in Bcrp1-/- mice compared with those in wild-type FVB mice (P < 0.05). The 4-ME-G concentration was also decreased in the bile in transporter gene knockout mice. ET and 4-ME showed good permeability in both Caco-2 monolayers [apparent permeability (Papp ) ≥ 0.59 × 10-5 cm/s] and duodenum (Papp ≥ 1.81). In conclusion, BCRP and MRP2 are involved in excreting ET-G and 4-ME-G. ET and 4-ME are most likely absorbed via passive diffusion in the intestines.
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Affiliation(s)
- Yuhuan Li
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, People's Republic of China (Y.L., W.S., X.O., G.L., Y.X., R.S., Y.W., X.Q., M.H., Z.L., L.Z.); State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (Special Administration Region), People's Republic of China (Z.L.); and Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (M.H.)
| | - Wenjie Song
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, People's Republic of China (Y.L., W.S., X.O., G.L., Y.X., R.S., Y.W., X.Q., M.H., Z.L., L.Z.); State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (Special Administration Region), People's Republic of China (Z.L.); and Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (M.H.)
| | - Xiaojun Ou
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, People's Republic of China (Y.L., W.S., X.O., G.L., Y.X., R.S., Y.W., X.Q., M.H., Z.L., L.Z.); State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (Special Administration Region), People's Republic of China (Z.L.); and Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (M.H.)
| | - Guangkuo Luo
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, People's Republic of China (Y.L., W.S., X.O., G.L., Y.X., R.S., Y.W., X.Q., M.H., Z.L., L.Z.); State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (Special Administration Region), People's Republic of China (Z.L.); and Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (M.H.)
| | - Yushan Xie
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, People's Republic of China (Y.L., W.S., X.O., G.L., Y.X., R.S., Y.W., X.Q., M.H., Z.L., L.Z.); State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (Special Administration Region), People's Republic of China (Z.L.); and Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (M.H.)
| | - Rongjin Sun
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, People's Republic of China (Y.L., W.S., X.O., G.L., Y.X., R.S., Y.W., X.Q., M.H., Z.L., L.Z.); State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (Special Administration Region), People's Republic of China (Z.L.); and Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (M.H.)
| | - Ying Wang
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, People's Republic of China (Y.L., W.S., X.O., G.L., Y.X., R.S., Y.W., X.Q., M.H., Z.L., L.Z.); State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (Special Administration Region), People's Republic of China (Z.L.); and Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (M.H.)
| | - Xiaoxiao Qi
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, People's Republic of China (Y.L., W.S., X.O., G.L., Y.X., R.S., Y.W., X.Q., M.H., Z.L., L.Z.); State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (Special Administration Region), People's Republic of China (Z.L.); and Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (M.H.)
| | - Ming Hu
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, People's Republic of China (Y.L., W.S., X.O., G.L., Y.X., R.S., Y.W., X.Q., M.H., Z.L., L.Z.); State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (Special Administration Region), People's Republic of China (Z.L.); and Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (M.H.)
| | - Zhongqiu Liu
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, People's Republic of China (Y.L., W.S., X.O., G.L., Y.X., R.S., Y.W., X.Q., M.H., Z.L., L.Z.); State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (Special Administration Region), People's Republic of China (Z.L.); and Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (M.H.)
| | - Lijun Zhu
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, People's Republic of China (Y.L., W.S., X.O., G.L., Y.X., R.S., Y.W., X.Q., M.H., Z.L., L.Z.); State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (Special Administration Region), People's Republic of China (Z.L.); and Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas (M.H.)
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Ren JL, Sun H, Dong H, Yang L, Zhang AH, Han Y, Wang L, Liu L, Wang XJ. A UPLC-MS-based metabolomics approach to reveal the attenuation mechanism of Caowu compatibility with Yunnan Baiyao. RSC Adv 2019; 9:8926-8933. [PMID: 35517678 PMCID: PMC9062013 DOI: 10.1039/c8ra09894h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 03/05/2019] [Indexed: 12/17/2022] Open
Abstract
Yunnan Baiyao (YNBY) is a well-known traditional Chinese medicine containing Caowu (Aconiti kusnezoffii radix, CW). However, the application of YNBY is limited by the toxicity of CW. Notably, CW is not used alone in YNBY, but is combined with other herbs in a formula for clinical use. In the present study, the compatibility of the protective effects and mechanism of YNBY with the potential toxicity of CW was investigated. After combining with other compatible herbs, the serum metabolic disorder induced by CW can be regulated. Using UPLC-MS-based metabolomics, 63 endogenous serum metabolites were identified as being associated with the potential toxicity of CW, 17 of which were regulated to normal levels when CW was combined with other compatible herbs in YNBY. These regulated metabolites were closely related to glycerophospholipid metabolism, glycosylphosphatidylinositol (GPI)-anchor biosynthesis, tyrosine metabolism, and primary bile acid biosynthesis metabolic pathways. This study aims to evaluate the attenuation mechanism of CW compatibility with YNBY. Yunnan Baiyao (YNBY) is a well-known traditional Chinese medicine containing Caowu (Aconiti kusnezoffii radix, CW).![]()
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Affiliation(s)
- Jun-ling Ren
- National Chinmedomics Research Center
- Sino-America Chinmedomics Technology Collaboration Center
- National TCM Key Laboratory of Serum Pharmacochemistry
- Chinmedomics Research Center of TCM State Administration
- Laboratory of Metabolomics
| | - Hui Sun
- National Chinmedomics Research Center
- Sino-America Chinmedomics Technology Collaboration Center
- National TCM Key Laboratory of Serum Pharmacochemistry
- Chinmedomics Research Center of TCM State Administration
- Laboratory of Metabolomics
| | - Hui Dong
- National Chinmedomics Research Center
- Sino-America Chinmedomics Technology Collaboration Center
- National TCM Key Laboratory of Serum Pharmacochemistry
- Chinmedomics Research Center of TCM State Administration
- Laboratory of Metabolomics
| | - Le Yang
- National Chinmedomics Research Center
- Sino-America Chinmedomics Technology Collaboration Center
- National TCM Key Laboratory of Serum Pharmacochemistry
- Chinmedomics Research Center of TCM State Administration
- Laboratory of Metabolomics
| | - Ai-hua Zhang
- National Chinmedomics Research Center
- Sino-America Chinmedomics Technology Collaboration Center
- National TCM Key Laboratory of Serum Pharmacochemistry
- Chinmedomics Research Center of TCM State Administration
- Laboratory of Metabolomics
| | - Ying Han
- National Chinmedomics Research Center
- Sino-America Chinmedomics Technology Collaboration Center
- National TCM Key Laboratory of Serum Pharmacochemistry
- Chinmedomics Research Center of TCM State Administration
- Laboratory of Metabolomics
| | - Li Wang
- National Chinmedomics Research Center
- Sino-America Chinmedomics Technology Collaboration Center
- National TCM Key Laboratory of Serum Pharmacochemistry
- Chinmedomics Research Center of TCM State Administration
- Laboratory of Metabolomics
| | - Liang Liu
- State Key Laboratory of Quality Research in Chinese Medicine
- Macau University of Science and Technology
- Taipa
- China
| | - Xi-jun Wang
- National Chinmedomics Research Center
- Sino-America Chinmedomics Technology Collaboration Center
- National TCM Key Laboratory of Serum Pharmacochemistry
- Chinmedomics Research Center of TCM State Administration
- Laboratory of Metabolomics
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66
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Li Y, Lu L, Wang L, Qu W, Liu W, Xie Y, Zheng H, Wang Y, Qi X, Hu M, Zhu L, Liu Z. Interplay of Efflux Transporters with Glucuronidation and Its Impact on Subcellular Aglycone and Glucuronide Disposition: A Case Study with Kaempferol. Mol Pharm 2018; 15:5602-5614. [PMID: 30376625 DOI: 10.1021/acs.molpharmaceut.8b00782] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Glucuronidation is a major process of drug metabolism and elimination that generally governs drug efficacy and toxicity. Publications have demonstrated that efflux transporters control intracellular glucuronidation metabolism. However, it is still unclear whether and how efflux transporters interact with UDP-glucuronosyltransferases (UGTs) in subcellular organelles. In this study, kaempferol, a model fluorescent flavonoid, was used to investigate the interplay of glucuronidation with transport at the subcellular level. Human recombinant UGTs and microsomes were utilized to characterize the in vitro glucuronidation kinetics of kaempferol. The inhibition of UGTs and efflux transporters on the subcellular disposition of kaempferol were determined visually and quantitatively in Caco-2/TC7 cells. The knockout of transporters on the subcellular accumulation of kaempferol in liver and intestine were evaluated visually. ROS and Nrf2 were assayed to evaluate the pharmacological activities of kaempferol. The results showed that UGT1A9 is the primary enzyme responsible for kaempferol glucuronidation. Visual and quantitative data showed that the UGT1A9 inhibitor carvacrol caused a significant rise in subcellular aglycone and reduction in subcellular glucuronides of kaempferol. The inhibition and knockout of transporters, such as P-glycoprotein (P-gp), breast cancer resistance protein (BCRP), and multidrug resistance-associated proteins (MRPs), exhibited a marked increase in subcellular kaempferol and decrease in its subcellular glucuronides. Correspondingly, inhibition of UGT1A9 and transporters led to increased kaempferol and, consequently, a significantly enhanced ROS scavenging efficiency and nuclear translocation of Nrf2. In conclusion, the interplay of efflux transporters (P-gp, BCRP, and MRPs) and UGTs govern the subcellular exposure and corresponding pharmacological activity of kaempferol.
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Affiliation(s)
- Yuhuan Li
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine , Guangzhou University of Chinese Medicine , Guangzhou , Guangdong 510006 , PR China
| | - Linlin Lu
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine , Guangzhou University of Chinese Medicine , Guangzhou , Guangdong 510006 , PR China.,State Key Laboratory of Quality Research in Chinese Medicine , Macau University of Science and Technology , Macau (SAR) 999078 , PR China
| | - Liping Wang
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine , Guangzhou University of Chinese Medicine , Guangzhou , Guangdong 510006 , PR China
| | - Wei Qu
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine , Guangzhou University of Chinese Medicine , Guangzhou , Guangdong 510006 , PR China
| | - Wenqin Liu
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine , Guangzhou University of Chinese Medicine , Guangzhou , Guangdong 510006 , PR China.,Department of Pharmaceutics, School of Pharmaceutical Sciences , Southern Medical University , Guangzhou , Guangdong 1838 , China
| | - Yushan Xie
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine , Guangzhou University of Chinese Medicine , Guangzhou , Guangdong 510006 , PR China
| | - Hongming Zheng
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine , Guangzhou University of Chinese Medicine , Guangzhou , Guangdong 510006 , PR China
| | - Ying Wang
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine , Guangzhou University of Chinese Medicine , Guangzhou , Guangdong 510006 , PR China
| | - Xiaoxiao Qi
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine , Guangzhou University of Chinese Medicine , Guangzhou , Guangdong 510006 , PR China
| | - Ming Hu
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine , Guangzhou University of Chinese Medicine , Guangzhou , Guangdong 510006 , PR China.,Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy , University of Houston , Houston , Texas 77030 , United States
| | - Lijun Zhu
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine , Guangzhou University of Chinese Medicine , Guangzhou , Guangdong 510006 , PR China
| | - Zhongqiu Liu
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine , Guangzhou University of Chinese Medicine , Guangzhou , Guangdong 510006 , PR China.,State Key Laboratory of Quality Research in Chinese Medicine , Macau University of Science and Technology , Macau (SAR) 999078 , PR China
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67
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Effect of Pregnancy on the Pharmacokinetic Interaction between Efavirenz and Lumefantrine in HIV-Malaria Coinfection. Antimicrob Agents Chemother 2018; 62:AAC.01252-18. [PMID: 30082286 DOI: 10.1128/aac.01252-18] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 07/26/2018] [Indexed: 01/10/2023] Open
Abstract
Artemether-lumefantrine is often coadministered with efavirenz-based antiretroviral therapy for malaria treatment in HIV-infected women during pregnancy. Previous studies showed changes in lumefantrine pharmacokinetics due to interaction with efavirenz in nonpregnant adults. The influence of pregnancy on this interaction has not been reported. This pharmacokinetic study involved 35 pregnant and 34 nonpregnant HIV-malaria-coinfected women receiving efavirenz-based antiretroviral therapy and was conducted in four health facilities in Nigeria. Participants received a 3-day standard regimen of artemether-lumefantrine for malaria treatment, and intensive pharmacokinetic sampling was conducted from 0.5 to 96 h after the last dose. Plasma efavirenz, lumefantrine, and desbutyl-lumefantrine were quantified using validated assays, and pharmacokinetic parameters were derived using noncompartmental analysis. The median middose plasma concentrations of efavirenz were significantly lower in pregnant women (n = 32) than in nonpregnant women (n = 32) at 1,820 ng/ml (interquartile range, 1,300 to 2,610 ng/ml) versus 2,760 ng/ml (interquartile range, 2,020 to 5,640 ng/ml), respectively (P = 0.006). The lumefantrine area under the concentration-time curve from 0 to 96 h was significantly higher in pregnant women (n = 27) at 155,832 ng · h/ml (interquartile range, 102,400 to 214,011 ng · h/ml) than nonpregnant women at 90,594 ng · h/ml (interquartile range, 58,869 to 149,775 ng · h/ml) (P = 0.03). A similar trend was observed for the lumefantrine concentration at 12 h after the last dose of lumefantrine, which was 2,870 ng/ml (interquartile range, 2,180 to 4,880 ng/ml) versus 2,080 ng/ml (interquartile range, 1,190 to 2,970 ng/ml) in pregnant and nonpregnant women, respectively (P = 0.02). The lumefantrine-to-desbutyl-lumefantrine ratio also tended to be lower in pregnant women than in nonpregnant women (P = 0.076). Overall, pregnancy tempered the extent of efavirenz-lumefantrine interactions, resulting in increased lumefantrine exposure. However, any consideration of dosage adjustment for artemether-lumefantrine to enhance exposure in this population needs to be based on data from a prospective study with safety and efficacy endpoints.
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Sayyari A, Fæste CK, Hansen U, Uhlig S, Framstad T, Schatzmayr D, Sivertsen T. Effects and biotransformation of the mycotoxin deoxynivalenol in growing pigs fed with naturally contaminated pelleted grains with and without the addition of Coriobacteriaceum DSM 11798. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2018; 35:1394-1409. [PMID: 29701502 DOI: 10.1080/19440049.2018.1461254] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Deoxynivalenol (DON) is one of the most prevalent Fusarium mycotoxins in grain and can cause economic losses in pig farming due to reduced feed consumption and lower weight gains. Biodetoxification of mycotoxins using bacterial strains has been a focus of research for many years. However, only a few in vivo studies have been conducted on the effectiveness of microbial detoxification of fusariotoxins. This study was therefore aimed at investigating the effect of a feed additive containing the bacterial strain Coriobacteriaceum DSM 11798 (the active ingredient in Biomin® BBSH 797) on growth performance and blood parameters, as well as uptake and metabolism of DON, in growing pigs. Forty-eight crossbred (Landrace-Yorkshire/Duroc-Duroc) weaning pigs were fed with pelleted feed made from naturally contaminated oats, with DON at four concentration levels: (1) control diet (DON < 0.2 mg kg-1), (2) low-contaminated diet (DON = 0.92 mg kg-1), (3) medium-contaminated diet (DON = 2.2 mg kg-1) and (4) high-contaminated diet (DON = 5.0 mg kg-1) and equivalent diets containing DSM 11798 as feed additive. During the first 7 days of exposure, pigs in the highest-dose group showed a 20-28% reduction in feed intake and a 24-34% reduction in weight gain compared with pigs in the control and low-dose groups. These differences were levelled out by study completion. Towards the end of the experiment, dose-dependent reductions in serum albumin, globulin and total serum protein were noted in the groups fed with DON-contaminated feed compared with the controls. The addition of DSM 11798 had no effect on the DON-related clinical effects or on the plasma concentrations of DON. The ineffectiveness of the feed additive in the present study could be a consequence of its use in pelleted feed, which might have hindered its rapid release, accessibility or detoxification efficiency in the pig's gastrointestinal tract.
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Affiliation(s)
- Amin Sayyari
- a Department of Production Animal Clinical Sciences, Faculty of Veterinary Medicine , Norwegian University of Life Sciences , Oslo , Norway
| | | | - Ulrik Hansen
- a Department of Production Animal Clinical Sciences, Faculty of Veterinary Medicine , Norwegian University of Life Sciences , Oslo , Norway
| | - Silvio Uhlig
- c Section for Chemistry , Norwegian Veterinary Institute , Oslo , Norway
| | - Tore Framstad
- a Department of Production Animal Clinical Sciences, Faculty of Veterinary Medicine , Norwegian University of Life Sciences , Oslo , Norway
| | - Dian Schatzmayr
- d Biomin Research Centre , Biomin Holding GmbH , Tulln , Austria
| | - Tore Sivertsen
- a Department of Production Animal Clinical Sciences, Faculty of Veterinary Medicine , Norwegian University of Life Sciences , Oslo , Norway
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Harnessing the Power of Microbiome Assessment Tools as Part of Neuroprotective Nutrition and Lifestyle Medicine Interventions. Microorganisms 2018; 6:microorganisms6020035. [PMID: 29693607 PMCID: PMC6027349 DOI: 10.3390/microorganisms6020035] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 04/02/2018] [Accepted: 04/20/2018] [Indexed: 12/11/2022] Open
Abstract
An extensive body of evidence documents the importance of the gut microbiome both in health and in a variety of human diseases. Cell and animal studies describing this relationship abound, whilst clinical studies exploring the associations between changes in gut microbiota and the corresponding metabolites with neurodegeneration in the human brain have only begun to emerge more recently. Further, the findings of such studies are often difficult to translate into simple clinical applications that result in measurable health outcomes. The purpose of this paper is to appraise the literature on a select set of faecal biomarkers from a clinician’s perspective. This practical review aims to examine key physiological processes that influence both gastrointestinal, as well as brain health, and to discuss how tools such as the characterisation of commensal bacteria, the identification of potential opportunistic, pathogenic and parasitic organisms and the quantification of gut microbiome biomarkers and metabolites can help inform clinical decisions of nutrition and lifestyle medicine practitioners.
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