1
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Heiss TK, Dorn RS, Ferreira AJ, Love AC, Prescher JA. Fluorogenic Cyclopropenones for Multicomponent, Real-Time Imaging. J Am Chem Soc 2022; 144:7871-7880. [PMID: 35442034 PMCID: PMC9377832 DOI: 10.1021/jacs.2c02058] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Fluorogenic bioorthogonal reactions enable biomolecule visualization in real time. These reactions comprise reporters that "light up" upon reaction with complementary partners. While the spectrum of fluorogenic chemistries is expanding, few transformations are compatible with live cells due to cross-reactivities or insufficient signal turn-on. To address the need for more suitable chemistries for cellular imaging, we developed a fluorogenic reaction featuring cyclopropenone reporters and phosphines. The transformation involves regioselective activation and cyclization of cyclopropenones to form coumarin products. With optimal probes, the reaction provides >1600-fold signal turn-on, one of the highest fluorescence enhancements reported to date. The bioorthogonal motifs were evaluated in vitro and in cells. The reaction was also found to be compatible with other common fluorogenic transformations, enabling multicomponent, real-time imaging. Collectively, these data suggest that the cyclopropenone-phosphine reaction will bolster efforts to track biomolecule targets in their native settings.
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Affiliation(s)
- Tyler K Heiss
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Robert S Dorn
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Andrew J Ferreira
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Anna C Love
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Jennifer A Prescher
- Department of Chemistry, University of California, Irvine, California 92697, United States.,Molecular Biology & Biochemistry, University of California, Irvine, California 92697, United States.,Pharmaceutical Sciences, University of California, Irvine, California 92697, United States
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2
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Apical sodium-dependent bile acid transporter, drug target for bile acid related diseases and delivery target for prodrugs: Current and future challenges. Pharmacol Ther 2020; 212:107539. [PMID: 32201314 DOI: 10.1016/j.pharmthera.2020.107539] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 03/11/2020] [Indexed: 02/06/2023]
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3
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Xu Y, Yang L, Zhao S, Wang Z. Large-scale production of tauroursodeoxycholic acid products through fermentation optimization of engineered Escherichia coli cell factory. Microb Cell Fact 2019; 18:34. [PMID: 30736766 PMCID: PMC6368744 DOI: 10.1186/s12934-019-1076-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 01/29/2019] [Indexed: 12/25/2022] Open
Abstract
Background Bear bile powder is a valuable medicinal material characterized by high content of tauroursodeoxycholic acid (TUDCA) at a certain ratio to taurochenodeoxycholic acid (TCDCA). We had created an engineered E. coli harboring two-step bidirectional oxidative and reductive enzyme-catalyzing pathway that could rapidly convert TCDCA to TUDCA at a specific percentage in shake flasks. Results We reported here the large-scale production of TUDCA containing products by balancing the bidirectional reactions through optimizing fermentation process of the engineered E. coli in fermenters. The fermentation medium was firstly optimized based on M9 medium using response surface methodology, leading to a glycerol and yeast extract modified M9-GY medium benefits for both cell growth and product conversion efficiency. Then isopropylthio-β-galactoside induction and fed-stock stage was successively optimized. Finally, a special deep-tank static process was developed to promote the conversion from TCDCA to TUDCA. Applying the optimal condition, fermentation was performed by separately supplementing 30 g refined chicken bile powder and 35 g crude chicken bile powder as substrates, resulting in 29.35 ± 2.83 g and 30.78 ± 3.04 g powder products containing 35.85 ± 3.85% and 27.14 ± 4.23% of TUDCA at a ratio of 1.49 ± 0.14 and 1.55 ± 0.19 to TCDCA, respectively, after purification and evaporation of the fermentation broth. The recovery yield was 92.84 ± 4.21% and 91.83 ± 2.56%, respectively. Conclusion This study provided a practical and environment friendly industrialized process for producing artificial substitute of bear bile powder from cheap and readily available chicken bile powder using engineered E. coli microbial cell factory. It also put forward an interesting deep-tank static process to promote the enzyme-catalyzing reactions toward target compounds in synthetic biology-based fermentation. Electronic supplementary material The online version of this article (10.1186/s12934-019-1076-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yingpeng Xu
- The SATCM Key Laboratory for New Resources & Quality Evaluation of Chinese Medicine, The MOE Key Laboratory for Standardization of Chinese Medicines and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Li Yang
- The SATCM Key Laboratory for New Resources & Quality Evaluation of Chinese Medicine, The MOE Key Laboratory for Standardization of Chinese Medicines and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Shujuan Zhao
- The SATCM Key Laboratory for New Resources & Quality Evaluation of Chinese Medicine, The MOE Key Laboratory for Standardization of Chinese Medicines and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China.
| | - Zhengtao Wang
- The SATCM Key Laboratory for New Resources & Quality Evaluation of Chinese Medicine, The MOE Key Laboratory for Standardization of Chinese Medicines and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
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4
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A continuous fluorescence assay for simple quantification of bile salt hydrolase activity in the gut microbiome. Sci Rep 2019; 9:1359. [PMID: 30718677 PMCID: PMC6361941 DOI: 10.1038/s41598-018-37656-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 11/09/2018] [Indexed: 12/17/2022] Open
Abstract
The microbiota of the mammalian gut plays a dynamic role in controlling host physiology. The effect of gut microbiota activity on host health is particularly evident in the case of bile homeostasis. Bile is produced by the host and is modified by the gut microbiota, which impacts the net hydrophobicity of the total bile acid pool, and also modulates host signaling pathways. A key mechanism by which the microbiota modify bile is through deconjugation of bile salts through bile salt hydrolase (BSH) enzymatic activity, which is postulated to be a prerequisite for all further microbial metabolism. BSH activity in the gut is largely considered to be beneficial for the host, and genes encoding BSHs are found in the genomes of many taxa found in over-the-counter probiotics. Despite the therapeutic relevance of this enzyme, there is no sensitive and simple assay for continuous monitoring of BSH activity, and there are no non-destructive means of characterizing its activity in whole cell or microbial community samples. Herein, we describe a continuous fluorescence assay that can be used for characterization of BSH activity with purified protein, cell lysates, whole cells, and in human gut microbiome samples. The method is a “turn-on” reporter strategy, which employs synthetic substrates that yield a fluorescent product upon BSH-dependent turnover. This assay is used to show the first in vivo characterization of BSH activity. We also demonstrate continuous, non-destructive quantification of BSH activity in a human fecal microbiome sample containing recombinant BSH.
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5
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Cooper A, Singh S, Hook S, Tyndall JDA, Vernall AJ. Chemical Tools for Studying Lipid-Binding Class A G Protein-Coupled Receptors. Pharmacol Rev 2017; 69:316-353. [PMID: 28655732 DOI: 10.1124/pr.116.013243] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 05/15/2017] [Indexed: 12/16/2022] Open
Abstract
Cannabinoid, free fatty acid, lysophosphatidic acid, sphingosine 1-phosphate, prostanoid, leukotriene, bile acid, and platelet-activating factor receptor families are class A G protein-coupled receptors with endogenous lipid ligands. Pharmacological tools are crucial for studying these receptors and addressing the many unanswered questions surrounding expression of these receptors in normal and diseased tissues. An inherent challenge for developing tools for these lipid receptors is balancing the often lipophilic requirements of the receptor-binding pharmacophore with favorable physicochemical properties to optimize highly specific binding. In this study, we review the radioligands, fluorescent ligands, covalent ligands, and antibodies that have been used to study these lipid-binding receptors. For each tool type, the characteristics and design rationale along with in vitro and in vivo applications are detailed.
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Affiliation(s)
- Anna Cooper
- School of Pharmacy, University of Otago, Dunedin, New Zealand
| | - Sameek Singh
- School of Pharmacy, University of Otago, Dunedin, New Zealand
| | - Sarah Hook
- School of Pharmacy, University of Otago, Dunedin, New Zealand
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6
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Sreekanth V, Medatwal N, Kumar S, Pal S, Vamshikrishna M, Kar A, Bhargava P, Naaz A, Kumar N, Sengupta S, Bajaj A. Tethering of Chemotherapeutic Drug/Imaging Agent to Bile Acid-Phospholipid Increases the Efficacy and Bioavailability with Reduced Hepatotoxicity. Bioconjug Chem 2017; 28:2942-2953. [DOI: 10.1021/acs.bioconjchem.7b00564] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Vedagopuram Sreekanth
- Laboratory
of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon
Expressway, Faridabad, Haryana 121001, India
- Manipal University, Manipal, 576104, India
| | - Nihal Medatwal
- Laboratory
of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon
Expressway, Faridabad, Haryana 121001, India
- Manipal University, Manipal, 576104, India
| | - Sandeep Kumar
- Laboratory
of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon
Expressway, Faridabad, Haryana 121001, India
- Manipal University, Manipal, 576104, India
| | - Sanjay Pal
- Laboratory
of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon
Expressway, Faridabad, Haryana 121001, India
- KIIT University, Bhubaneswar, Odisha 751024, India
| | - Malyla Vamshikrishna
- Laboratory
of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon
Expressway, Faridabad, Haryana 121001, India
| | - Animesh Kar
- Laboratory
of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon
Expressway, Faridabad, Haryana 121001, India
| | - Priyanshu Bhargava
- Laboratory
of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon
Expressway, Faridabad, Haryana 121001, India
| | - Aaliya Naaz
- Laboratory
of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon
Expressway, Faridabad, Haryana 121001, India
| | - Nitin Kumar
- National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Sagar Sengupta
- National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Avinash Bajaj
- Laboratory
of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon
Expressway, Faridabad, Haryana 121001, India
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7
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Gavin J, Quilty F, Majer F, Gilsenan G, Byrne AM, Long A, Radics G, Gilmer JF. A fluorescent analogue of tauroursodeoxycholic acid reduces ER stress and is cytoprotective. Bioorg Med Chem Lett 2016; 26:5369-5372. [PMID: 27729186 DOI: 10.1016/j.bmcl.2016.06.059] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 06/21/2016] [Accepted: 06/23/2016] [Indexed: 01/18/2023]
Abstract
Tauroursodeoxycholic acid (TUDCA) is a cytoprotective ER stress inhibitor and chemical chaperone. It has therapeutic potential in a wide array of diseases but a specific macromolecular target or molecular mechanism of action remains obscure. This Letter describes an effective new synthetic approach to taurine conjugation of bile acids which we used to prepare 3α-dansyl TUDCA (4) as a probe for TUDCA actions. As a model of ER stress we used the hepatocarcinoma cell line HUH7 and stimulation with either deoxycholic acid (DCA, 200μM) or tunicamycin (5μg/ml) and measured levels of Bip/GRP78, ATF4, CHOP and XBP1s/XBP1u. Compound 4 was more effective than UDCA at inhibiting ER stress markers and had similar effects to TUDCA. In a model of cholestasis using the cytotoxic DCA to induce apoptosis, pretreatment with 4 prevented cell death similarly to TUDCA whereas the unconjugated clinically used UDCA had no effect. 3α-Dansyl TUDCA (4) appears to be a suitable reporter for TUDCA effects on ER stress and related cytoprotective activity.
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Affiliation(s)
- Jason Gavin
- School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Fran Quilty
- School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Ferenc Majer
- School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Georgina Gilsenan
- School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Anne Marie Byrne
- Institute for Molecular Medicine, Trinity Centre for Health Sciences, St James's Hospital, Dublin 8, Ireland
| | - Aideen Long
- Institute for Molecular Medicine, Trinity Centre for Health Sciences, St James's Hospital, Dublin 8, Ireland
| | - Gabor Radics
- School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - John F Gilmer
- School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland.
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8
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Mustafa D, Ma D, Zhou W, Meisenheimer P, Cali JJ. Novel No-Wash Luminogenic Probes for the Detection of Transporter Uptake Activity. Bioconjug Chem 2016; 27:87-101. [DOI: 10.1021/acs.bioconjchem.5b00495] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Dana Mustafa
- Promega Biosciences LLC, 277
Granada Drive, San Luis Obispo, California 93401, United States
| | - Dongping Ma
- Promega Corporation, 2800 Woods
Hollow Road, Madison, Wisconsin 53711-5399, United States
| | - Wenhui Zhou
- Promega Biosciences LLC, 277
Granada Drive, San Luis Obispo, California 93401, United States
| | - Poncho Meisenheimer
- Promega Biosciences LLC, 277
Granada Drive, San Luis Obispo, California 93401, United States
| | - James J. Cali
- Promega Corporation, 2800 Woods
Hollow Road, Madison, Wisconsin 53711-5399, United States
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9
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Li Y, Zhu C. Enhanced hepatic-targeted delivery via oral administration using nanoliposomes functionalized with a novel DSPE–PEG–cholic acid conjugate. RSC Adv 2016. [DOI: 10.1039/c5ra28018d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
DSPE–PEG–cholic acid modified nanoliposomes interacted with cholic acid receptor on intestine epithelial cells and hepatocytes specifically for oral hepatic targeting.
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Affiliation(s)
- Ying Li
- Institute of Medicinal Plant Development
- Chinese Academy of Medical Sciences and Peking Union Medical College
- Beijing 100193
- China
| | - Chunyan Zhu
- Institute of Medicinal Plant Development
- Chinese Academy of Medical Sciences and Peking Union Medical College
- Beijing 100193
- China
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10
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Rudashevskaya EL, Stockner T, Trauner M, Freissmuth M, Chiba P. Pharmacological correction of misfolding of ABC proteins. DRUG DISCOVERY TODAY. TECHNOLOGIES 2015; 12:e87-94. [PMID: 25027379 PMCID: PMC4039138 DOI: 10.1016/j.ddtec.2014.03.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The endoplasmic reticulum (ER) quality control system distinguishes between correctly and incorrectly folded proteins to prevent processing of aberrantly folded conformations along the secretory pathway. Non-synonymous mutations can lead to misfolding of ABC proteins and associated disease phenotypes. Specific phenotypes may at least partially be corrected by small molecules, so-called pharmacological chaperones. Screening for folding correctors is expected to open an avenue for treatment of diseases such as cystic fibrosis and intrahepatic cholestasis.
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Affiliation(s)
- Elena L Rudashevskaya
- Institute of Medical Chemistry, Medical University of Vienna, Waehringerstrasse 10, Vienna, Austria
| | - Thomas Stockner
- Institute of Pharmacology, Medical University of Vienna, Waehringerstrasse 13, Vienna, Austria
| | - Michael Trauner
- Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Waehringer Guertel 18-20, Austria
| | - Michael Freissmuth
- Institute of Pharmacology, Medical University of Vienna, Waehringerstrasse 13, Vienna, Austria
| | - Peter Chiba
- Institute of Medical Chemistry, Medical University of Vienna, Waehringerstrasse 10, Vienna, Austria
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11
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Kohl F, Schmitz J, Furtmann N, Schulz-Fincke AC, Mertens MD, Küppers J, Benkhoff M, Tobiasch E, Bartz U, Bajorath J, Stirnberg M, Gütschow M. Design, characterization and cellular uptake studies of fluorescence-labeled prototypic cathepsin inhibitors. Org Biomol Chem 2015; 13:10310-23. [DOI: 10.1039/c5ob01613d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Cysteine cathepsin inhibition and cellular uptake of a coumarin 343-containing dipeptide nitrile was analyzed.
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Affiliation(s)
- Franziska Kohl
- Pharmaceutical Institute
- Pharmaceutical Chemistry I
- University of Bonn
- D-53121 Bonn, Germany
| | - Janina Schmitz
- Pharmaceutical Institute
- Pharmaceutical Chemistry I
- University of Bonn
- D-53121 Bonn, Germany
- Department of Natural Sciences
| | - Norbert Furtmann
- Pharmaceutical Institute
- Pharmaceutical Chemistry I
- University of Bonn
- D-53121 Bonn, Germany
- Department of Life Science Informatics
| | | | - Matthias D. Mertens
- Pharmaceutical Institute
- Pharmaceutical Chemistry I
- University of Bonn
- D-53121 Bonn, Germany
| | - Jim Küppers
- Pharmaceutical Institute
- Pharmaceutical Chemistry I
- University of Bonn
- D-53121 Bonn, Germany
| | - Marcel Benkhoff
- Pharmaceutical Institute
- Pharmaceutical Chemistry I
- University of Bonn
- D-53121 Bonn, Germany
| | - Edda Tobiasch
- Department of Natural Sciences
- Bonn-Rhein-Sieg University of Applied Sciences
- D-53359 Rheinbach, Germany
| | - Ulrike Bartz
- Department of Natural Sciences
- Bonn-Rhein-Sieg University of Applied Sciences
- D-53359 Rheinbach, Germany
| | - Jürgen Bajorath
- Department of Life Science Informatics
- B-IT
- LIMES Program Unit Chemical Biology and Medicinal Chemistry
- University of Bonn
- D-53113 Bonn, Germany
| | - Marit Stirnberg
- Pharmaceutical Institute
- Pharmaceutical Chemistry I
- University of Bonn
- D-53121 Bonn, Germany
| | - Michael Gütschow
- Pharmaceutical Institute
- Pharmaceutical Chemistry I
- University of Bonn
- D-53121 Bonn, Germany
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12
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Synthesis and evaluation of 18F-labeled bile acid compound: A potential PET imaging agent for FXR-related diseases. Nucl Med Biol 2014; 41:495-500. [DOI: 10.1016/j.nucmedbio.2014.03.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 02/13/2014] [Accepted: 03/05/2014] [Indexed: 12/11/2022]
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13
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Rogers L, Burke-Murphy E, Senge MO. Simple Porphyrin Desymmetrization: 5,10,15,20-Tetrakis(3-hydroxyphenyl)porphyrin (mTHPP) as a Gateway Molecule for Peripheral Functionalization. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402433] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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14
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Li X, Zhao T, Cheng D, Chu C, Tong S, Yan J, Li QY. Synthesis and biological activity of some bile acid-based camptothecin analogues. Molecules 2014; 19:3761-76. [PMID: 24662087 PMCID: PMC6271966 DOI: 10.3390/molecules19033761] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 03/17/2014] [Accepted: 03/18/2014] [Indexed: 01/05/2023] Open
Abstract
In an effort to decrease the toxicity of camptothecin (CPT) and improve selectivity for hepatoma and colon cancer cells, bile acid groups were introduced into the CPT 20 or 10 positions, resulting in the preparation of sixteen novel CPT-bile acid analogues. The compounds in which a bile acid group was introduced at the 20-hydroxyl group of CPT showed better cytotoxic selectivity for human hepatoma and colon cancer cells than for human breast cancer cells. Fluorescence microscopy analysis demonstrated that one compound (E2) entered human hepatoma cells more effectively than it did human breast cancer cells. Compound G4 exhibited the best anti-tumour activity in vivo. These results suggested that introduction of a bile acid group at the 20-position of CPT could decrease toxicity in vivo and improve selectivity for hepatoma cells.
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Affiliation(s)
- Xingnuo Li
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Tengfei Zhao
- Key Laboratory of Forest Plant Ecology (Northeast Forestry University), Ministry of Education, 332# No. 26 Hexing Road, Harbin 150040, China.
| | - Dongping Cheng
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Chu Chu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Shengqiang Tong
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Jizong Yan
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Qing-Yong Li
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China.
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15
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Májer F, Sharma R, Mullins C, Keogh L, Phipps S, Duggan S, Kelleher D, Keely S, Long A, Radics G, Wang J, Gilmer JF. New highly toxic bile acids derived from deoxycholic acid, chenodeoxycholic acid and lithocholic acid. Bioorg Med Chem 2014; 22:256-68. [DOI: 10.1016/j.bmc.2013.11.029] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Revised: 09/27/2013] [Accepted: 11/16/2013] [Indexed: 01/18/2023]
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16
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Synthesis and biological evaluation of Foscan® bile acid conjugates to target esophageal cancer cells. Bioorg Med Chem Lett 2013; 23:2495-9. [DOI: 10.1016/j.bmcl.2013.03.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 03/09/2013] [Accepted: 03/11/2013] [Indexed: 12/30/2022]
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