دورية أكاديمية

Human UDP-glucuronosyltransferase 1As catalyze aristolochic acid D O-glucuronidation to form a lesser nephrotoxic glucuronide.

التفاصيل البيبلوغرافية
العنوان: Human UDP-glucuronosyltransferase 1As catalyze aristolochic acid D O-glucuronidation to form a lesser nephrotoxic glucuronide.
المؤلفون: Tu DZ; Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China., Liu PQ; Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China., Zhu GH; Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China., Zeng HR; Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China., Deng YY; Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China., Huang J; Pharmacology and Toxicology Division, Shanghai Institute of Food and Drug Control, Shanghai, 201203, China., Niu XT; Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China., Liu YF; Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China., Hu J; Department of Nephrology, The Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, 200137, China., Liang XM; Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China., Finel M; Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, 00014, Finland., Wang P; Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China., Ge GB; Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China. Electronic address: geguangbo@shutcm.edu.cn.
المصدر: Journal of ethnopharmacology [J Ethnopharmacol] 2024 Jun 28; Vol. 328, pp. 118116. Date of Electronic Publication: 2024 Mar 26.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Elsevier Sequoia Country of Publication: Ireland NLM ID: 7903310 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1872-7573 (Electronic) Linking ISSN: 03788741 NLM ISO Abbreviation: J Ethnopharmacol Subsets: MEDLINE
أسماء مطبوعة: Publication: Limerick : Elsevier Sequoia
Original Publication: Lausanne, Elsevier Sequoia.
مواضيع طبية MeSH: Aristolochic Acids*/toxicity , Mitochondrial Diseases*, Humans ; Glucuronides/metabolism ; Microsomes, Liver/metabolism ; Reactive Oxygen Species/metabolism ; Glucuronosyltransferase/metabolism ; Kinetics ; Catalysis ; Uridine Diphosphate/metabolism
مستخلص: Ethnopharmacological Relevance: Aristolochic acids (AAs) are naturally occurring nitro phenanthrene carboxylic acids primarily found in plants of the Aristolochiaceae family. Aristolochic acid D (AAD) is a major constituent in the roots and rhizomes of the Chinese herb Xixin (the roots and rhizomes of Asarum heterotropoides F. Schmidt), which is a key material for preparing a suite of marketed Chinese medicines. Structurally, AAD is nearly identical to the nephrotoxic aristolochic acid I (AAI), with an additional phenolic group at the C-6 site. Although the nephrotoxicity and metabolic pathways of AAI have been well-investigated, the metabolic pathway(s) of AAD in humans and the influence of AAD metabolism on its nephrotoxicity has not been investigated yet.
Aim of the Study: To identify the major metabolites of AAD in human tissues and to characterize AAD O-glucuronidation kinetics in different enzyme sources, as well as to explore the influence of AAD O-glucuronidation on its nephrotoxicity.
Materials and Methods: The O-glucuronide of AAD was biosynthesized and its chemical structure was fully characterized by both 1 H-NMR and 13 C-NMR. Reaction phenotyping assays, chemical inhibition assays, and enzyme kinetics analyses were conducted to assess the crucial enzymes involved in AAD O-glucuronidation in humans. Docking simulations were performed to mimic the catalytic conformations of AAD in human UDP-glucuronosyltransferases (UGTs), while the predicted binding energies and distances between the deprotonated C-6 phenolic group of AAD and the glucuronyl moiety of UDPGA in each tested human UGT isoenzyme were measured. The mitochondrial membrane potentials (MMP) and reactive oxygen species (ROS) levels in HK-2 cells treated with either AAI, or AAD, or AAD O-glucuronide were tested, to elucidate the impact of O-glucuronidation on the nephrotoxicity of AAD.
Results: AAD could be rapidly metabolized in human liver and intestinal microsomes (HLM and HIM, respectively) to form a mono-glucuronide, which was purified and fully characterized as AAD-6-O-β-D-glucuronide (AADG) by NMR. UGT1A1 was the predominant enzyme responsible for AAD-6-O-glucuronidation, while UGT1A9 contributed to a lesser extent. AAD-6-O-glucuronidation in HLM, HIM, UGT1A1 and UGT1A9 followed Michaelis-Menten kinetics, with the K m values of 4.27 μM, 9.05 μM, 3.87 μM, and 7.00 μM, respectively. Docking simulations suggested that AAD was accessible to the catalytic cavity of UGT1A1 or UGT1A9 and formed catalytic conformations. Further investigations showed that both AAI and AAD could trigger the elevated intracellular ROS levels and induce mitochondrial dysfunction and in HK-2 cells, but AADG was hardly to trigger ROS accumulation and mitochondrial dysfunction.
Conclusion: Collectively, UGT1A-catalyzed AAD 6-O-glucuronidation represents a crucial detoxification pathway of this naturally occurring AAI analogs in humans, which is very different from that of AAI.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
فهرسة مساهمة: Keywords: AAD 6-O-Glucuronide; Aristolochic acid D (AAD); O-glucuronidation; UGT1A1
المشرفين على المادة: 94218WFP5T (aristolochic acid I)
0 (Aristolochic Acids)
0 (Glucuronides)
0 (Reactive Oxygen Species)
EC 2.4.1.17 (Glucuronosyltransferase)
58-98-0 (Uridine Diphosphate)
تواريخ الأحداث: Date Created: 20240328 Date Completed: 20240415 Latest Revision: 20240415
رمز التحديث: 20240415
DOI: 10.1016/j.jep.2024.118116
PMID: 38548118
قاعدة البيانات: MEDLINE
الوصف
تدمد:1872-7573
DOI:10.1016/j.jep.2024.118116