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4Β-Hydroxycholesterol As Biomarker for Variation in CYP3A Activity
ȕ-Hydroxycholesterol as biomarker for variation in CYP3A activity Dissertation for the Degree of Philosophiae Doctor (Ph.D.) Kristine Hole 2018 Center for Psychopharmacology Diakonhjemmet Hospital Oslo Department of Pharmaceutical Biosciences School of Pharmacy Faculty of Mathematics and Natural Sciences University of Oslo © Kristine Hole, 2018 Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo No. ISSN 1501-7710 All rights reserved. No part of this publication may be reproduced or transmitted, in any form or by any means, without permission. Cover: Hanne Baadsgaard Utigard. Print production: Reprosentralen, University of Oslo. TABLE OF CONTENTS ACKNOWLEDGEMENTS ...................................................................................................... II LIST OF PUBLICATIONS ..................................................................................................... III ABBREVIATIONS..................................................................................................................IV ABSTRACT.............................................................................................................................. V 1 INTRODUCTION.............................................................................................................. 1 1.1 Variability in drug response ....................................................................................... 1 1.2 Drug metabolism ....................................................................................................... -
Eicosanoids in Carcinogenesis
4open 2019, 2,9 © B.L.D.M. Brücher and I.S. Jamall, Published by EDP Sciences 2019 https://doi.org/10.1051/fopen/2018008 Special issue: Disruption of homeostasis-induced signaling and crosstalk in the carcinogenesis paradigm “Epistemology of the origin of cancer” Available online at: Guest Editor: Obul R. Bandapalli www.4open-sciences.org REVIEW ARTICLE Eicosanoids in carcinogenesis Björn L.D.M. Brücher1,2,3,*, Ijaz S. Jamall1,2,4 1 Theodor-Billroth-Academy®, Germany, USA 2 INCORE, International Consortium of Research Excellence of the Theodor-Billroth-Academy®, Germany, USA 3 Department of Surgery, Carl-Thiem-Klinikum, Cottbus, Germany 4 Risk-Based Decisions Inc., Sacramento, CA, USA Received 21 March 2018, Accepted 16 December 2018 Abstract- - Inflammation is the body’s reaction to pathogenic (biological or chemical) stimuli and covers a burgeoning list of compounds and pathways that act in concert to maintain the health of the organism. Eicosanoids and related fatty acid derivatives can be formed from arachidonic acid and other polyenoic fatty acids via the cyclooxygenase and lipoxygenase pathways generating a variety of pro- and anti-inflammatory mediators, such as prostaglandins, leukotrienes, lipoxins, resolvins and others. The cytochrome P450 pathway leads to the formation of hydroxy fatty acids, such as 20-hydroxyeicosatetraenoic acid, and epoxy eicosanoids. Free radical reactions induced by reactive oxygen and/or nitrogen free radical species lead to oxygenated lipids such as isoprostanes or isolevuglandins which also exhibit pro-inflammatory activities. Eicosanoids and their metabolites play fundamental endocrine, autocrine and paracrine roles in both physiological and pathological signaling in various diseases. These molecules induce various unsaturated fatty acid dependent signaling pathways that influence crosstalk, alter cell–cell interactions, and result in a wide spectrum of cellular dysfunctions including those of the tissue microenvironment. -
Cytochrome P450 Enzymes in Oxygenation of Prostaglandin Endoperoxides and Arachidonic Acid
Comprehensive Summaries of Uppsala Dissertations from the Faculty of Pharmacy 231 _____________________________ _____________________________ Cytochrome P450 Enzymes in Oxygenation of Prostaglandin Endoperoxides and Arachidonic Acid Cloning, Expression and Catalytic Properties of CYP4F8 and CYP4F21 BY JOHAN BYLUND ACTA UNIVERSITATIS UPSALIENSIS UPPSALA 2000 Dissertation for the Degree of Doctor of Philosophy (Faculty of Pharmacy) in Pharmaceutical Pharmacology presented at Uppsala University in 2000 ABSTRACT Bylund, J. 2000. Cytochrome P450 Enzymes in Oxygenation of Prostaglandin Endoperoxides and Arachidonic Acid: Cloning, Expression and Catalytic Properties of CYP4F8 and CYP4F21. Acta Universitatis Upsaliensis. Comprehensive Summaries of Uppsala Dissertations from Faculty of Pharmacy 231 50 pp. Uppsala. ISBN 91-554-4784-8. Cytochrome P450 (P450 or CYP) is an enzyme system involved in the oxygenation of a wide range of endogenous compounds as well as foreign chemicals and drugs. This thesis describes investigations of P450-catalyzed oxygenation of prostaglandins, linoleic and arachidonic acids. The formation of bisallylic hydroxy metabolites of linoleic and arachidonic acids was studied with human recombinant P450s and with human liver microsomes. Several P450 enzymes catalyzed the formation of bisallylic hydroxy metabolites. Inhibition studies and stereochemical analysis of metabolites suggest that the enzyme CYP1A2 may contribute to the biosynthesis of bisallylic hydroxy fatty acid metabolites in adult human liver microsomes. 19R-Hydroxy-PGE and 20-hydroxy-PGE are major components of human and ovine semen, respectively. They are formed in the seminal vesicles, but the mechanism of their biosynthesis is unknown. Reverse transcription-polymerase chain reaction using degenerate primers for mammalian CYP4 family genes, revealed expression of two novel P450 genes in human and ovine seminal vesicles. -
Synonymous Single Nucleotide Polymorphisms in Human Cytochrome
DMD Fast Forward. Published on February 9, 2009 as doi:10.1124/dmd.108.026047 DMD #26047 TITLE PAGE: A BIOINFORMATICS APPROACH FOR THE PHENOTYPE PREDICTION OF NON- SYNONYMOUS SINGLE NUCLEOTIDE POLYMORPHISMS IN HUMAN CYTOCHROME P450S LIN-LIN WANG, YONG LI, SHU-FENG ZHOU Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, P. R. China (LL Wang & Y Li) Discipline of Chinese Medicine, School of Health Sciences, RMIT University, Bundoora, Victoria 3083, Australia (LL Wang & SF Zhou). 1 Copyright 2009 by the American Society for Pharmacology and Experimental Therapeutics. DMD #26047 RUNNING TITLE PAGE: a) Running title: Prediction of phenotype of human CYPs. b) Author for correspondence: A/Prof. Shu-Feng Zhou, MD, PhD Discipline of Chinese Medicine, School of Health Sciences, RMIT University, WHO Collaborating Center for Traditional Medicine, Bundoora, Victoria 3083, Australia. Tel: + 61 3 9925 7794; fax: +61 3 9925 7178. Email: [email protected] c) Number of text pages: 21 Number of tables: 10 Number of figures: 2 Number of references: 40 Number of words in Abstract: 249 Number of words in Introduction: 749 Number of words in Discussion: 1459 d) Non-standard abbreviations: CYP, cytochrome P450; nsSNP, non-synonymous single nucleotide polymorphism. 2 DMD #26047 ABSTRACT Non-synonymous single nucleotide polymorphisms (nsSNPs) in coding regions that can lead to amino acid changes may cause alteration of protein function and account for susceptivity to disease. Identification of deleterious nsSNPs from tolerant nsSNPs is important for characterizing the genetic basis of human disease, assessing individual susceptibility to disease, understanding the pathogenesis of disease, identifying molecular targets for drug treatment and conducting individualized pharmacotherapy. -
Linking Premenopausal Oestrone and Progesterone Levels with Risk of Hormone Receptor-Positive Breast Cancers
This is a repository copy of CYP3A7*1C allele: linking premenopausal oestrone and progesterone levels with risk of hormone receptor-positive breast cancers. White Rose Research Online URL for this paper: http://eprints.whiterose.ac.uk/170952/ Version: Published Version Article: Johnson, N, Maguire, S, Morra, A et al. (145 more authors) (2021) CYP3A7*1C allele: linking premenopausal oestrone and progesterone levels with risk of hormone receptor- positive breast cancers. British Journal of Cancer, 124 (4). pp. 842-854. ISSN 0007-0920 https://doi.org/10.1038/s41416-020-01185-w Reuse This article is distributed under the terms of the Creative Commons Attribution (CC BY) licence. This licence allows you to distribute, remix, tweak, and build upon the work, even commercially, as long as you credit the authors for the original work. More information and the full terms of the licence here: https://creativecommons.org/licenses/ Takedown If you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing [email protected] including the URL of the record and the reason for the withdrawal request. [email protected] https://eprints.whiterose.ac.uk/ www.nature.com/bjc ARTICLE Epidemiology CYP3A7*1C allele: linking premenopausal oestrone and progesterone levels with risk of hormone receptor-positive breast cancers Nichola Johnson et al. BACKGROUND: Epidemiological studies provide strong evidence for a role of endogenous sex hormones in the aetiology of breast cancer. The aim of this analysis was to identify genetic variants that are associated with urinary sex-hormone levels and breast cancer risk. -
Recent Advances in P450 Research
The Pharmacogenomics Journal (2001) 1, 178–186 2001 Nature Publishing Group All rights reserved 1470-269X/01 $15.00 www.nature.com/tpj REVIEW Recent advances in P450 research JL Raucy1,2 ABSTRACT SW Allen1,2 P450 enzymes comprise a superfamily of heme-containing proteins that cata- lyze oxidative metabolism of structurally diverse chemicals. Over the past few 1La Jolla Institute for Molecular Medicine, San years, there has been significant progress in P450 research on many fronts Diego, CA 92121, USA; 2Puracyp Inc, San and the information gained is currently being applied to both drug develop- Diego, CA 92121, USA ment and clinical practice. Recently, a major accomplishment occurred when the structure of a mammalian P450 was determined by crystallography. Correspondence: Results from these studies will have a major impact on understanding struc- JL Raucy,La Jolla Institute for Molecular Medicine,4570 Executive Dr,Suite 208, ture-activity relationships of P450 enzymes and promote prediction of drug San Diego,CA 92121,USA interactions. In addition, new technologies have facilitated the identification Tel: +1 858 587 8788 ext 116 of several new P450 alleles. This information will profoundly affect our under- Fax: +1 858 587 6742 E-mail: jraucyȰljimm.org standing of the causes attributed to interindividual variations in drug responses and link these differences to efficacy or toxicity of many thera- peutic agents. Finally, the recent accomplishments towards constructing P450 null animals have afforded determination of the role of these enzymes in toxicity. Moreover, advances have been made towards the construction of humanized transgenic animals and plants. Overall, the outcome of recent developments in the P450 arena will be safer and more efficient drug ther- apies. -
Pharmacogenetics of Cytochrome P450 and Its Application and Value in Drug Therapy – the Past, Present and Future
Pharmacogenetics of cytochrome P450 and its application and value in drug therapy – the past, present and future Magnus Ingelman-Sundberg Karolinska Institutet, Stockholm, Sweden The human genome x 3,120,000,000 nucleotides x 23,000 genes x >100 000 transcripts (!) x up to 100,000 aa differences between two proteomes x 10,000,000 SNPs in databases today The majority of the human genome is transcribed and has an unknown function RIKEN consortium Science 7 Sep 2005 Interindividual variability in drug action Ingelman-Sundberg, M., J Int Med 250: 186-200, 2001, CYP dependent metabolism of drugs (80 % of all phase I metabolism of drugs) Tolbutamide Beta blokers Warfarin Antidepressants Phenytoin CYP2C9* Diazepam Antipsychotics NSAID Citalopram Dextromethorphan CYP2D6* CYP2C19* Anti ulcer drugs Codeine CYP2E1 Clozapine Debrisoquine CYP1A2 Ropivacaine CYP2B6* Efavirenz Cyclophosphamide CYP3A4/5/7 Cyclosporin Taxol Tamoxifen Tacrolimus 40 % of the phase I Amprenavir Amiodarone metabolism is Cerivastatin carried out by Erythromycin polymorphic P450s Methadone Quinine (enzymes in Italics) Phenotypes and mutations PM, poor metabolizers; IM, intermediate met; EM, efficient met; UM, ultrarapid met Frequency Population Homozygous based dosing for • Stop codons • Heterozygous Two funct deleterious • Deletions alleles SNPs • Deleterious • Gene missense • Unstable duplication SNPs protein • Induction • Splice defects EM PM IM UM Enzyme activity/clearance The Home Page of the Human Cytochrome P450 (CYP) Allele Nomenclature Committee http://www.imm.ki.se/CYPalleles/ Webmaster: Sarah C Sim Editors: Magnus Ingelman-Sundberg, Ann K. Daly, Daniel W. Nebert Advisory Board: Jürgen Brockmöller, Michel Eichelbaum, Seymour Garte, Joyce A. Goldstein, Frank J. Gonzalez, Fred F. Kadlubar, Tetsuya Kamataki, Urs A. -
Regulation of Cytochrome P450 (CYP) Genes by Nuclear Receptors Paavo HONKAKOSKI*1 and Masahiko NEGISHI† *Department of Pharmaceutics, University of Kuopio, P
Biochem. J. (2000) 347, 321–337 (Printed in Great Britain) 321 REVIEW ARTICLE Regulation of cytochrome P450 (CYP) genes by nuclear receptors Paavo HONKAKOSKI*1 and Masahiko NEGISHI† *Department of Pharmaceutics, University of Kuopio, P. O. Box 1627, FIN-70211 Kuopio, Finland, and †Pharmacogenetics Section, Laboratory of Reproductive and Developmental Toxicology, NIEHS, National Institutes of Health, Research Triangle Park, NC 27709, U.S.A. Members of the nuclear-receptor superfamily mediate crucial homoeostasis. This review summarizes recent findings that in- physiological functions by regulating the synthesis of their target dicate that major classes of CYP genes are selectively regulated genes. Nuclear receptors are usually activated by ligand binding. by certain ligand-activated nuclear receptors, thus creating tightly Cytochrome P450 (CYP) isoforms often catalyse both formation controlled networks. and degradation of these ligands. CYPs also metabolize many exogenous compounds, some of which may act as activators of Key words: endobiotic metabolism, gene expression, gene tran- nuclear receptors and disruptors of endocrine and cellular scription, ligand-activated, xenobiotic metabolism. INTRODUCTION sex-, tissue- and development-specific expression patterns which are controlled by hormones or growth factors [16], suggesting Overview of the cytochrome P450 (CYP) superfamily that these CYPs may have critical roles, not only in elimination CYPs constitute a superfamily of haem-thiolate proteins present of endobiotic signalling molecules, but also in their production in prokaryotes and throughout the eukaryotes. CYPs act as [17]. Data from CYP gene disruptions and natural mutations mono-oxygenases, with functions ranging from the synthesis and support this view (see e.g. [18,19]). degradation of endogenous steroid hormones, vitamins and fatty Other mammalian CYPs have a prominent role in biosynthetic acid derivatives (‘endobiotics’) to the metabolism of foreign pathways. -
Profiling Cytochrome P450 Expression in Ovarian Cancer: Identification of Prognostic Markers Diane Downie,1Morag C.E
Imaging, Diagnosis, Prognosis Profiling Cytochrome P450 Expression in Ovarian Cancer: Identification of Prognostic Markers Diane Downie,1Morag C.E. McFadyen,1Patrick H. Rooney,1, 3 Margaret E. Cruickshank,2 David E. Parkin,2 Iain D. Miller,1Colin Telfer,3 William T. Melvin,3 and Graeme I. Murray1 Abstract Purpose: The cytochromes P450 are a multigene family of enzymes with a central role in the oxidative metabolism of a wide range of xenobiotics, including anticancer drugs and biologically active endogenous compounds. The purpose of this study was to define the cytochrome P450 profile of ovarian cancer and identify novel therapeutic targets and establish the prognostic signif- icance of expression of individualcytochrome P450s in this type of cancer. Experimental Design: Immunohistochemistry for a panelof 23 cytochrome P450s and cyto- chrome P450 reductase was done on an ovarian cancer tissue microarray consisting of 99primary epithelialovarian cancers, 22 peritonealmetastasis, and 13 normalovarian samples.The intensity of immunoreactivity in each sample was established by light microscopy. Results: In primary ovarian cancer, several P450s (CYP1B1, CYP2A/2B, CYP2F1, CYP2R1, CYP2U1,CYP3A5, CYP3A7,CYP3A43, CYP4Z1,CYP26A1,and CYP51)were present at a signif- icantlyhigher levelof intensity compared with normalovary. P450 expression was alsodetected in ovarian cancer metastasis and CYP2S1and P450 reductase both showed significantly in- creased expression in metastasis compared with primary ovarian cancer. The presence of low/ negative CYP2A/2B (log rank = 7.06, P = 0.008) or positive CYP4Z1 (log rank = 6.19, P =0.01) immunoreactivity in primary ovarian cancer were each associated with poor prognosis. Both CYP2A/2B and CYP4Z1were also independent markers of prognosis. -
Biodiversity of P-450 Monooxygenase: Cross-Talk
Cytochrome P450: Oxygen activation and biodiversty 1 Biodiversity of P-450 monooxygenase: Cross-talk between chemistry and biology Heme Fe(II)-CO complex 450 nm, different from those of hemoglobin and other heme proteins 410-420 nm. Cytochrome Pigment of 450 nm Cytochrome P450 CYP3A4…. 2 High Energy: Ultraviolet (UV) Low Energy: Infrared (IR) Soret band 420 nm or g-band Mb Fe(II) ---------- Mb Fe(II) + CO - - - - - - - Visible region Visible bands Q bands a-band, b-band b a 3 H2O/OH- O2 CO Fe(III) Fe(II) Fe(II) Fe(II) Soret band at 420 nm His His His His metHb deoxy Hb Oxy Hb Carbon monoxy Hb metMb deoxy Mb Oxy Mb Carbon monoxy Mb H2O/Substrate O2-Substrate CO Substrate Soret band at 450 nm Fe(III) Fe(II) Fe(II) Fe(II) Cytochrome P450 Cys Cys Cys Cys Active form 4 Monooxygenase Reactions by Cytochromes P450 (CYP) + + RH + O2 + NADPH + H → ROH + H2O + NADP RH: Hydrophobic (lipophilic) compounds, organic compounds, insoluble in water ROH: Less hydrophobic and slightly soluble in water. Drug metabolism in liver ROH + GST → R-GS GST: glutathione S-transferase ROH + UGT → R-UG UGT: glucuronosyltransferaseGlucuronic acid Insoluble compounds are converted into highly hydrophilic (water soluble) compounds. 5 Drug metabolism at liver: Sleeping pill, pain killer (Narcotic), carcinogen etc. Synthesis of steroid hormones (steroidgenesis) at adrenal cortex, brain, kidney, intestine, lung, Animal (Mammalian, Fish, Bird, Insect), Plants, Fungi, Bacteria 6 NSAID: non-steroid anti-inflammatory drug 7 8 9 10 11 Cytochrome P450: Cysteine-S binding to Fe(II) heme is important for activation of O2. -
Cytochrome P450 3A5 Is Highly Expressed in Normal Prostate Cells but Absent in Prostate Cancer
Endocrine-Related Cancer (2007) 14 645–654 Cytochrome P450 3A5 is highly expressed in normal prostate cells but absent in prostate cancer S Leskela¨ 1, E Honrado2, C Montero-Conde1, I Landa1, A Casco´n1, R Leto´n1, P Talavera3,JMCo´zar 4, A Concha3, M Robledo1 and C Rodrı´guez-Antona 1 1Hereditary Endocrine Cancer Group and 2Human Genetics Group, Human Cancer Genetics Programme, Spanish National Cancer Center (CNIO), C/Melchor Ferna´ndez Almagro, 3, 28029 Madrid, Spain 3Department of Anatomic Pathology and Tumor Bank and 4Department of Urology, Hospital Virgen de las Nieves, Avenida Constitucio´n 100, 18012 Granada, Spain (Correspondence should be addressed to C Rodrı´guez-Antona; Email: [email protected]) Abstract Testosterone is essential for the growth and function of the luminal prostate cells, but it is also critical for the development of prostate cancer, which in the majority of the cases derives from luminal cells. Cytochrome P450 3A (CYP3A) enzymes hydroxylate testosterone and dehydroe- piandrosterone to less active metabolites, which might be the basis for the association between CYP3A polymorphisms and prostate cancer. However, it is unknown whether the CYP3A enzymes are expressed at relevant levels in the prostate and which polymorphisms could affect this tissue-specific CYP3A activity. Thus, we measured CYP3A4, CYP3A5, CYP3A7, and CYP3A43 mRNA in 14 benign prostatic hyperplasias and ten matched non-tumoral/tumoral prostate samples. We found that CYP3A5 mRNA in non-tumoral prostate tissue was 10% of the average amount of liver samples, whereas the expression of the other CYP3A genes was much lower. Similarly to liver, CYP3A5*3 polymorphism decreased CYP3A5 mRNA content 13-fold. -
CYP3A7*1C Allele: Linking Premenopausal Oestrone and Progesterone Levels with Risk of Hormone Receptor-Positive Breast Cancers
UC Irvine UC Irvine Previously Published Works Title CYP3A7*1C allele: linking premenopausal oestrone and progesterone levels with risk of hormone receptor-positive breast cancers. Permalink https://escholarship.org/uc/item/4bs3g1kx Journal British journal of cancer, 124(4) ISSN 0007-0920 Authors Johnson, Nichola Maguire, Sarah Morra, Anna et al. Publication Date 2021-02-01 DOI 10.1038/s41416-020-01185-w Peer reviewed eScholarship.org Powered by the California Digital Library University of California www.nature.com/bjc ARTICLE Epidemiology CYP3A7*1C allele: linking premenopausal oestrone and progesterone levels with risk of hormone receptor-positive breast cancers Nichola Johnson et al. BACKGROUND: Epidemiological studies provide strong evidence for a role of endogenous sex hormones in the aetiology of breast cancer. The aim of this analysis was to identify genetic variants that are associated with urinary sex-hormone levels and breast cancer risk. METHODS: We carried out a genome-wide association study of urinary oestrone-3-glucuronide and pregnanediol-3-glucuronide levels in 560 premenopausal women, with additional analysis of progesterone levels in 298 premenopausal women. To test for the association with breast cancer risk, we carried out follow-up genotyping in 90,916 cases and 89,893 controls from the Breast Cancer Association Consortium. All women were of European ancestry. RESULTS: For pregnanediol-3-glucuronide, there were no genome-wide significant associations; for oestrone-3-glucuronide, we identified a single peak mapping to the CYP3A locus, annotated by rs45446698. The minor rs45446698-C allele was associated with lower oestrone-3-glucuronide (−49.2%, 95% CI −56.1% to −41.1%, P = 3.1 × 10–18); in follow-up analyses, rs45446698-C was also associated with lower progesterone (−26.7%, 95% CI −39.4% to −11.6%, P = 0.001) and reduced risk of oestrogen and progesterone receptor-positive breast cancer (OR = 0.86, 95% CI 0.82–0.91, P = 6.9 × 10–8).