1
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Fu R, Li DY, Tian JH, Lin YL, Zhao QY, Li WL, Chen FY, Guo DS, Cai K. Enantiopure Corral[4]BINOLs as Ultrastrong Receptors for Recognition and Differential Sensing of Steroids. Angew Chem Int Ed Engl 2024; 63:e202406233. [PMID: 38591161 DOI: 10.1002/anie.202406233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 04/08/2024] [Accepted: 04/08/2024] [Indexed: 04/10/2024]
Abstract
The precise recognition and sensing of steroids, a type of vital biomolecules, hold immense practical value across various domains. In this study, we introduced corral[4]BINOLs (C[4]BINOLs), a pair of enantiomeric conjugated deep-cavity hosts, as novel synthetic receptors for binding steroids. Due to the strong hydrophobic effect of their deep nonpolar, chiral cavities, the two enantiomers of C[4]BINOLs demonstrated exceptionally high recognition affinities (up to 1012 M-1) for 16 important steroidal compounds as well as good enantioselectiviy (up to 15.5) in aqueous solutions, establishing them as the most potent known steroid receptors. Harnessing their ultrahigh affinity, remarkable enantioselectivity, and fluorescence emission properties, the two C[4]BINOL enantiomers were employed to compose a fluorescent sensor array which achieved discrimination and sensing of 16 structurally similar steroids at low concentrations.
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Affiliation(s)
- Rong Fu
- College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Dai-Yuan Li
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Jia-Hong Tian
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Yi-Lin Lin
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Qing-Yu Zhao
- College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Wen-Li Li
- College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Fang-Yuan Chen
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Dong-Sheng Guo
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Kang Cai
- College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
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2
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Paul B, Natarajan R. Metal-Organic Cage Receptors for Encapsulation and Sensing of Bile Acids. Inorg Chem 2024; 63:8449-8461. [PMID: 38630518 DOI: 10.1021/acs.inorgchem.4c00934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
Developing synthetic supramolecular receptors to solubilize, scavenge, recognize, encapsulate, and sense steroids is challenging. Despite a limited number of receptors having affinity with steroids, none exists to bind steroidal bile acids selectively. Herein, we report a C2-symmetric metal-organic cage [Pd6L24]12+ and an expanded version of the Fujita cage [Pd6L14]12+, built with a conformationally flexible ligand L2, accessed through coordination-driven self-assembly. We examined both cages for steroid recognition in water: both have certain shared characteristics and distinctive features. [Pd6L14]12+ binds hydrophobic bile acids and other steroids by forming a 1:1 complex. In contrast, the expanded [Pd6L24]12+ cage exhibits an affinity for amphiphilic bile acids and selective steroids to encapsulate them as dimers, promoted by cooperative interguest hydrogen bonding. [Pd6L24]12+ has a 5 times stronger solubility enhancement ability for cholic acid compared to [Pd6L14]12+. Further, the expanded [Pd6L24]12+ cage can selectively sense bile acids in nanomolar detection limits through indicator displacement assay by employing sulforhodamine 101 (SR101).
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Affiliation(s)
- Bhaswati Paul
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4 Raja SC Mullick Road, Kolkata 700032, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ramalingam Natarajan
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4 Raja SC Mullick Road, Kolkata 700032, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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3
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Speakman NA, Heard AW, Nitschke JR. A Cu I6L 4 Cage Dynamically Reconfigures to Form Suit[4]anes and Selectively Bind Fluorinated Steroids. J Am Chem Soc 2024; 146:10234-10239. [PMID: 38578086 PMCID: PMC11027141 DOI: 10.1021/jacs.4c00257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 03/29/2024] [Accepted: 03/29/2024] [Indexed: 04/06/2024]
Abstract
Simple organic ligands can self-assemble with metal ions to generate metal-organic cages, whose cavities bind guests selectively. This binding may enable new methods of chemical separation or sensing, among other useful functions. Here we report the preparation of a CuI6L4 pseudo-octahedral metal-organic cage, the ligands of which self-assemble from simple organic building blocks. Temperature, solvent, and the presence of different guests governed which structure predominated from a dynamic mixture of cage diastereomers with different arrangements of right- or left-handed metal vertices. Dissolution in dimethyl sulfoxide or the binding of tetrahedral guests led to a chiral tetrahedral T-symmetric framework, whereas low temperatures favored the achiral S4-symmetric diastereomer. Tetrahedral guests with long arms were encapsulated to form mechanically bonded suit[4]anes, with guest arms protruding out through host windows. The cage was also observed to bind fluorinated steroids, an important class of drug molecules, but not non-fluorinated steroids, providing the basis for new separation processes.
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Affiliation(s)
- Natasha
M. A. Speakman
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
| | - Andrew W. Heard
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
- Astex
Pharmaceuticals, 436
Cambridge Science Park, Milton Road, Cambridge CB4 0QA, U.K.
| | - Jonathan R. Nitschke
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
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4
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Hajdaś G, Kawka A, Koenig H, Kułaga D, Sosnowska K, Mrówczyńska L, Pospieszny T. Click chemistry as a method for the synthesis of steroid bioconjugates of bile acids derivatives and sterols. Steroids 2023; 199:109282. [PMID: 37482327 DOI: 10.1016/j.steroids.2023.109282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 07/19/2023] [Accepted: 07/20/2023] [Indexed: 07/25/2023]
Abstract
Six steroid conjugates of bile acids and sterol derivatives have been synthesized using the click chemistry method. The azide-alkyne Huisgen cycloaddition of the propionyl ester of lithocholic, deoxycholic and cholic acid with azide derivatives of cholesterol and cholestanol gave new bile acid-sterol conjugates linked with a 1,2,3-triazole ring. Previously, sterols were converted to bromoacetate substituted derivatives by reaction with bromoacetic acid bromide in anhydrous dichloromethane. These compounds were then converted to azide derivatives using sodium azide. The propiolic esters of lithocholic, deoxycholic and cholic acids were obtained by reaction with propiolic acid in the presence of p-toluenesulfonic acid. Additionally, two of these steroids: methyl 3α-propynoyloxy-12α-acetoxy-5β-cholane-24-oate and methyl 3α-propynoyloxy-7 α,12α-diacetoxy-5β-cholane-24-oate were also obtained and characterized for the first time. All conjugates were obtained in good yields using an efficient synthesis method. The structures of all conjugates and the four substrates were confirmed by spectral (1H- and 13C NMR, FT-IR) analysis, mass spectrometry (ESI-MS), and PM5 semiempirical methods. The pharmacotherapeutic potential of the synthesized compounds was estimated based on the in silico Prediction of Activity Spectra for Substances (PASS) method. The cytotoxicity of the compounds was in vitro evaluated in a hemolytic assay using human erythrocytes as a cell model. The in silico and in vitro study results indicate that the selected compound possesses an interesting biological activity and can be considered as potential drug design agent. Additionally, molecular docking was performed for the selected conjugate.
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Affiliation(s)
- Grzegorz Hajdaś
- Department of Bioactive Products, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8 Street, 61-614 Poznań, Poland
| | - Anna Kawka
- Department of Bioactive Products, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8 Street, 61-614 Poznań, Poland
| | - Hanna Koenig
- Department of Bioactive Products, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8 Street, 61-614 Poznań, Poland
| | - Damian Kułaga
- Department of Organic Chemistry and Technology, Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24 Street, 31-155 Kraków, Poland
| | - Katarzyna Sosnowska
- Department of Cell Biology, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland
| | - Lucyna Mrówczyńska
- Department of Cell Biology, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland
| | - Tomasz Pospieszny
- Department of Bioactive Products, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8 Street, 61-614 Poznań, Poland.
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5
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Park HY, Choi HR, Kim YB, Oh SK, Kim T, Yang HS, In J. Chronic exposure to dexamethasone may not affect sugammadex reversal of rocuronium-induced neuromuscular blockade: an in vivo study on rats. Anesth Pain Med (Seoul) 2023; 18:275-283. [PMID: 37468197 PMCID: PMC10410550 DOI: 10.17085/apm.23021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/14/2023] [Accepted: 05/22/2023] [Indexed: 07/21/2023] Open
Abstract
BACKGROUND Chronic glucocorticoid exposure is associated with resistance to nondepolarizing neuromuscular blocking agents. Therefore, we hypothesized that sugammadex-induced recovery would occur more rapidly in subjects exposed to chronic dexamethasone compared to those who were not exposed. This study evaluated the sugammadex-induced recovery profile after neuromuscular blockade (NMB) in rats exposed to chronic dexamethasone. METHODS Sprague-Dawley rats were allocated to three groups (dexamethasone, control, and pair-fed group) for the in vivo study. The mice received daily intraperitoneal dexamethasone injections (500 μg/kg) or 0.9% saline for 15 days. To achieve complete NMB, 3.5 mg/kg rocuronium was administered on the sixteenth day. The recovery time to a train-of-four ratio ≥ 0.9 was measured to evaluate the complete recovery following the sugammadex injection. RESULTS Among the groups, no significant differences were observed in the recovery time to a train-of-four ratio ≥ 0.9 following sugammadex administration (P = 0.531). The time to the second twitch of the train-of-four recovery following rocuronium administration indicated that the duration of NMB was significantly shorter in Group D than that in Groups C and P (P = 0.001). CONCLUSIONS Chronic exposure to dexamethasone did not shorten the recovery time of sugammadex-induced NMB reversal. However, the findings of this study indicated that no adjustments to sugammadex dosage or route of administration is required, even in patients undergoing long-term steroid treatment.
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Affiliation(s)
| | - Hey Ran Choi
- Department of Anesthesiology and Pain Medicine, Inje University Seoul Paik Hospital, Seoul, Korea
| | - Yong Beom Kim
- Department of Anesthesia and Pain Medicine, Gachon University Gil Medical Center, Incheon, Korea
| | - Seok Kyeong Oh
- Department of Anesthesiology and Pain Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Taehoon Kim
- Department of Anesthesiology and Pain Medicine, Dongguk University Ilsan Hospital, Goyang, Korea
| | - Hong Seuk Yang
- Department of Anesthesiology and Pain Medicine, Daejeon Eulji Medical Center, Eulji University School of Medicine, Daejeon, Korea
| | - Junyong In
- Department of Anesthesiology and Pain Medicine, Dongguk University Ilsan Hospital, Goyang, Korea
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6
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Patel S, Bariya D, Mishra R, Mishra S. Bile acid-based receptors and their applications in recognition. Steroids 2022; 179:108981. [PMID: 35176289 DOI: 10.1016/j.steroids.2022.108981] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 01/13/2022] [Accepted: 02/09/2022] [Indexed: 12/15/2022]
Abstract
Ion recognition has attracted great attention in the past decades because of its important role in biology, medicine, environment, and chemistry. The combination of rigidity, curved structure and amphiphilic nature makes bile acids a host system for ion recognition. In addition, the availability of hydroxyl groups in bile acids can be used for further derivatization to develop various ion recognition receptors. The detection of ions is revealed by the binding constant ka value, log approach, and UV-visible or 1H NMR titration, while visual detection is determined by gel-phase transition, colorimetric and fluorescent probes. In this review, we have discussed the bile acid-based receptors and their ion-recognition capability. These bile acid-based systems have the potential for the development of anion transport for biological activity.
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Affiliation(s)
- Sejal Patel
- Department of Engineering and Physical Sciences, Institute of Advanced Research, Gujarat, 382426 India
| | - Dipakkumar Bariya
- Department of Engineering and Physical Sciences, Institute of Advanced Research, Gujarat, 382426 India
| | - Roli Mishra
- Department of Engineering and Physical Sciences, Institute of Advanced Research, Gujarat, 382426 India.
| | - Satyendra Mishra
- Department of Engineering and Physical Sciences, Institute of Advanced Research, Gujarat, 382426 India.
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7
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Pospieszny T, Koenig H. Design, synthesis, spectral and theoretical study of new bile acid-sterol conjugates linked via 1,2,3-triazole ring. Steroids 2021; 176:108934. [PMID: 34699839 DOI: 10.1016/j.steroids.2021.108934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 10/06/2021] [Accepted: 10/14/2021] [Indexed: 11/20/2022]
Abstract
New four steroid conjugates have been prepared from bile acids and sterol derivatives using click chemistry method. The azide-alkyne Huisgen cycloaddition (intermolecular 1,3-dipolar cycloaddition) of the propargyl ester of lithocholic, deoxycholic, cholic acid as well as dehydrocholic acids and azide derivatives of cholesterol gave a new bile acid-sterol conjugates linked with a 1,2,3-triazole ring. Previously, bile acids were converted into bromoacetyl substituted derivatives by the reaction of propargyl esters of lithocholic, deoxycholic, cholic with bromoacetic acid bromide in toluene with TEBA and sodium hydride. All conjugates were obtained in good yields using an efficient synthesis method. The structures of all products were confirmed by spectral (1H- and 13C NMR, and FT-IR) analysis, mass spectrometry (ESI-MS), as well as PM5 semiempirical methods. Estimation of the pharmacotherapeutic potential has been accomplished for the synthesized compounds on the basis of Prediction of Activity Spectra for Substances (PASS).
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Affiliation(s)
- Tomasz Pospieszny
- Department of Bioactive Products, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8 Street, 61-614 Poznań, Poland.
| | - Hanna Koenig
- Department of Bioactive Products, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8 Street, 61-614 Poznań, Poland
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8
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Maiti B, Bhattacharya S. Liposomal nanoparticles based on steroids and isoprenoids for nonviral gene delivery. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2021; 14:e1759. [PMID: 34729941 DOI: 10.1002/wnan.1759] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 07/24/2021] [Accepted: 08/10/2021] [Indexed: 11/11/2022]
Abstract
Natural lipid molecules are an essential part of life as they constitute the membrane of cells and organelle. In most of these cases, the hydrophobicity of natural lipids is contributed by alkyl chains. Although natural lipids with a nonfatty acid hydrophobic backbone are quite rare, steroids and isoprenoids have been strong candidates as part of a lipid. Over the years, these natural molecules (steroid and isoprenoids) have been used to make either lipid-based nanoparticle or functionalize in such a way that it could form nano assembly alone for therapeutic delivery. Here we mainly focus on the synthetic functionalized version of these natural molecules which forms cationic liposomal nanoparticles (LipoNPs). These cationic LipoNPs were further used to deliver various negatively charged genetic materials in the form of pDNA, siRNA, mRNA (nucleic acids), and so on. This article is categorized under: Biology-Inspired Nanomaterials > Lipid-Based Structures.
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Affiliation(s)
- Bappa Maiti
- Technical Research Centre, Indian Association for the Cultivation of Science, Kolkata, India
| | - Santanu Bhattacharya
- Technical Research Centre, Indian Association for the Cultivation of Science, Kolkata, India.,School of Applied & Interdisciplinary Sciences, Indian Association for the Cultivation of Science, Kolkata, India.,Department of Organic Chemistry, Indian Institute of Science, Bangalore, India
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9
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Pospieszny T, Koenig H, Kowalczyk I, Brycki B. Molecular structure, spectral and thermal properties and in silico biological activity of new bis-phthalimidopropylalkylammonium conjugates of bile acids. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Hoffrichter G, Lützen A. Allosteric binding of sodium deoxycholate by a bis(β-cyclodextrin)-2,2′-bipyridine receptor. Org Chem Front 2021. [DOI: 10.1039/d1qo01173a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The allosteric effect of a new bis(β-cyclodextrin) receptor amounts to a more than 18-fold increase of its binding affinity towards sodium deoxycholate upon addition of a zinc(ii) phenanthroline complex as an effector.
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Affiliation(s)
- Gabriel Hoffrichter
- Kekulé-Institut für Organische Chemie und Biochemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße 1, 53121 Bonn, Germany
| | - Arne Lützen
- Kekulé-Institut für Organische Chemie und Biochemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße 1, 53121 Bonn, Germany
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11
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Mishra R, Mishra S. Updates in bile acid-bioactive molecule conjugates and their applications. Steroids 2020; 159:108639. [PMID: 32222373 DOI: 10.1016/j.steroids.2020.108639] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 12/28/2019] [Accepted: 03/21/2020] [Indexed: 02/07/2023]
Abstract
Bile acid conjugates are emerging as important chemical resources due to their low cost and wide availability of bile acids, making them privileged molecules in drug carrier systems and building blocks for derivatization and chiral template introduction into bioactive molecules. In recent years, bile acids as scaffolds in supramolecular, medicinal, and material chemistry attracted prime focus of researchers as an area of research to be followed with passion. Due to peculiar physicochemical and biological properties, bile acid exhibited various applications in biomedical and pharmaceutical fields. In this review, the bile acid conjugations with different bioactive compounds have been discussed to understand their influence on the bioavailability of bioactive compounds.
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Affiliation(s)
- Roli Mishra
- Department of Physical Sciences, Institute of Advanced Research, Gandhinagar, Gujarat 382007, India
| | - Satyendra Mishra
- Department of Physical Sciences, Institute of Advanced Research, Gandhinagar, Gujarat 382007, India.
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12
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Aguilar-Valdez N, Esturau-Escofet N, González-Antonio O, Romero-Ávila M, Flores-Pérez B, Leyva MA, Díaz D, Santillan R, Farfán N. Synthesis, complete NMR assignment and structural study of a steroidal dimer of 17α-ethynyl-5α,10α-estran-17β-ol with diethynylbenzene spacer. Steroids 2020; 157:108606. [PMID: 32084503 DOI: 10.1016/j.steroids.2020.108606] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 02/04/2020] [Accepted: 02/14/2020] [Indexed: 11/16/2022]
Abstract
A phenylene-bridged steroidal dimer derived from 17α-ethynyl-5α,10α-estran-17β-ol with molecular rotor-like architecture was synthesized to investigate the supramolecular interactions directing the crystallization of these systems. Structures with varying importance in complementarity between H-bonding and hydrophobic interactions can be observed directing the packing of the obtained crystals, depending on the synthetic stage, though conserving the same space group for both systems. Such behavior clearly shows the versatility achievable using steroids as crystal packing directors. Alongside this structural study, the complete NMR assignment is presented for the dimer, and precursors, in which the steroids present an unconventional and noteworthy A-B ring fusion.
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Affiliation(s)
- Nancy Aguilar-Valdez
- Facultad de Química, Departamento de Química Orgánica, Universidad Nacional Autónoma de México, 04510 Ciudad de México, Mexico
| | - Nuria Esturau-Escofet
- Instituto de Química, Universidad Nacional Autónoma de México, 04510 Ciudad de México, Mexico
| | - Oscar González-Antonio
- Facultad de Química, Departamento de Química Orgánica, Universidad Nacional Autónoma de México, 04510 Ciudad de México, Mexico
| | - Margarita Romero-Ávila
- Facultad de Química, Departamento de Química Orgánica, Universidad Nacional Autónoma de México, 04510 Ciudad de México, Mexico
| | - Blas Flores-Pérez
- Facultad de Química, Departamento de Química Orgánica, Universidad Nacional Autónoma de México, 04510 Ciudad de México, Mexico
| | - Marco A Leyva
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de México, Apdo. Postal 14-740, 07000, Mexico
| | - David Díaz
- Facultad de Química, Departamento de Química Inorgánica y Nuclear, Universidad Nacional Autónoma de México, 04510 Ciudad de México, Mexico
| | - Rosa Santillan
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de México, Apdo. Postal 14-740, 07000, Mexico
| | - Norberto Farfán
- Facultad de Química, Departamento de Química Orgánica, Universidad Nacional Autónoma de México, 04510 Ciudad de México, Mexico
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Graton J, Hernández-Mesa M, Normand S, Dervilly G, Le Questel JY, Le Bizec B. Characterization of Steroids through Collision Cross Sections: Contribution of Quantum Chemistry Calculations. Anal Chem 2020; 92:6034-6042. [DOI: 10.1021/acs.analchem.0c00357] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Jérôme Graton
- CNRS, CEISAM, UMR 6230, Université de Nantes, Nantes F-44000, France
| | - Maykel Hernández-Mesa
- Laboratoire d’Etude des Résidus et Contaminants dans les Aliments (LABERCA), INRAE, Oniris, Nantes F-44307, France
| | - Samuel Normand
- CNRS, CEISAM, UMR 6230, Université de Nantes, Nantes F-44000, France
| | - Gaud Dervilly
- Laboratoire d’Etude des Résidus et Contaminants dans les Aliments (LABERCA), INRAE, Oniris, Nantes F-44307, France
| | | | - Bruno Le Bizec
- Laboratoire d’Etude des Résidus et Contaminants dans les Aliments (LABERCA), INRAE, Oniris, Nantes F-44307, France
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14
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Analysis of In Vivo Activity of the Bovine Cholesterol Hydroxylase/Lyase System Proteins Expressed in Escherichia coli. Mol Biotechnol 2019; 61:261-273. [PMID: 30729436 DOI: 10.1007/s12033-019-00158-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The cholesterol hydroxylase/lyase (CHL) system, located in the mitochondria of the mammalian adrenal cortex cells, consists of cytochrome P450scc (CYP11A1), adrenodoxin (Adx), and adrenodoxin reductase (AdR) and performs the first stage of the steroidogenesis: AdR and Adx enable the electron transfer between NADPH and cytochrome P450scc, and P450scc catalyzes the conversion of cholesterol into pregnenolone. CHL system was reconstructed in Escherichia coli using the polycistronic plasmid pTrc99A/CHL. In E. coli cells, the recombinant proteins form the catalytically active system. CHL activity towards 22R-hydroxycholesterol was 4.0 ± 1.3 nmol pregnenolone/h per 1 mg homogenate protein. The alteration of the order of heterologous cDNAs in the expression cassette from AdR-Adx-P450scc to P450scc-Adx-AdR results in alteration of stoichiometric ratio P450scc/Adx/AdR from 1:1.45:4.2 to 1:1.67:0.98; the former ratio is more optimal for the functioning of the cytochrome P450scc. The application of modified cDNA of Adx (AdxS112W) does not increase the CHL activity; however, the introduction of the second copy of AdxS112W gene into the expression cassette increases both the expression level of АdxS112W and the CHL activity in comparison with P450scc/АdxS112W/AdR system. In vivo activity of the CHL system in bacteria is limited by the substrate uptake by bacterial cells: it varied in the range of 0.05-0.62 mg pregnenolone/l resting cell suspension per 1-day cultivation, depending on the type and concentration of permeabilizing agents in the medium. The obtained results contribute to the knowledge of CHL system functioning in living bacteria.
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Dexamethasone concentration affecting rocuronium-induced neuromuscular blockade and sugammadex reversal in a rat phrenic nerve-hemidiaphragm model: An ex vivo study. Eur J Anaesthesiol 2019; 35:856-862. [PMID: 30045055 DOI: 10.1097/eja.0000000000000866] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND The concentration range of dexamethasone that inhibits neuromuscular blockade (NMB) and sugammadex reversal remains unclear. OBJECTIVE To evaluate the effects of dexamethasone on rocuronium-induced NMB and sugammadex reversal. DESIGN Ex vivo study. SETTING Asan Institute for Life Sciences, Asan Medical Center, Korea, from July 2015 to November 2015. ANIMALS One hundred sixty male Sprague-Dawley rats. INTERVENTIONS We assessed the effect of four concentrations of dexamethasone [0, 0.5, 5 (clinical concentrations) and 50 μg ml (experimental concentration)] on partial NMB on 40 phrenic nerve-hemidiaphragm preparations (n=10 per concentration). Once the first twitch of train-of-four (TOF) had been depressed by 50% with rocuronium, dexamethasone was administered. To assess the effect of dexamethasone on sugammadex reversal, 120 phrenic nerve-hemidiaphragm preparations were used in three subexperiments (n=40 per experiment), using three administration regimens of rocuronium-equimolar sugammadex: a single dose, a split-dose (split and ) and a reduced split-dose (split and ). After complete NMB was achieved, dexamethasone and sugammadex were administered. MAIN OUTCOME MEASURES The change in the first twitch height, the recovery time to a TOF ratio at least 0.9, and the TOF ratio at 30 min were evaluated. RESULTS There were no significant differences in the first twitch height among groups (P = 0.532). With a single dose of sugammadex, dexamethasone did not affect the recovery time to a TOF ratio at least 0.9 (P = 0.070). After using a split-dose of sugammadex, the recovery time to a TOF ratio at least 0.9 was delayed only at a concentration of 50 μg ml of dexamethasone. With a reduced split-dose of sugammadex, the TOF ratio at 30 min was lowered only by a concentration of 50 μg ml of dexamethasone (P < 0.010). CONCLUSION Acute bolus administration of dexamethasone at clinical concentrations had no effect on NMB or on sugammadex reversal.
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Yamashina M, Tsutsui T, Sei Y, Akita M, Yoshizawa M. A polyaromatic receptor with high androgen affinity. SCIENCE ADVANCES 2019; 5:eaav3179. [PMID: 31016239 PMCID: PMC6474769 DOI: 10.1126/sciadv.aav3179] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 02/25/2019] [Indexed: 06/09/2023]
Abstract
Biological receptors distinguish and bind steroid sex hormones, e.g., androgen-, progestogen-, and estrogen-type hormones, with high selectivity. To date, artificial molecular receptors have been unable to discriminate between these classes of biosubstrates. Here, we report that an artificial polyaromatic receptor preferentially binds a single molecule of androgenic hormones, known as "male" hormones (indicated with m), over progestogens and estrogens, known as "female" hormones (indicated with f), in water. Competitive experiments established the binding selectivity of the synthetic receptor for various sex hormones to be testosterone (m) > androsterone (m) >> progesterone (f) > β-estradiol (f) > pregnenolone (f) > estriol (f). These bindings are driven by the hydrophobic effect, and the observed selectivity arises from multiple CH-π contacts and hydrogen-bonding interactions in the semirigid polyaromatic cavity. Furthermore, micromolar fluorescence detection of androgen was demonstrated using the receptor containing a fluorescent dye in water.
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Affiliation(s)
| | - Takahiro Tsutsui
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Yoshihisa Sei
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Munetaka Akita
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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Gill AD, Perez L, Salinas INQ, Byers SR, Liu Y, Hickey BL, Zhong W, Hooley RJ. Selective Array‐Based Sensing of Anabolic Steroids in Aqueous Solution by Host–Guest Reporter Complexes. Chemistry 2019; 25:1740-1745. [DOI: 10.1002/chem.201804854] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Adam D. Gill
- Department of Biochemistry and Molecular Biology University of California-Riverside Riverside CA 92521 USA
| | - Lizeth Perez
- Department of Chemistry University of California-Riverside Riverside CA 92521 USA
| | - Isaac N. Q. Salinas
- Department of Statistics University of California-Riverside Riverside CA 92521 USA
| | - Samantha R. Byers
- Department of Biochemistry and Molecular Biology University of California-Riverside Riverside CA 92521 USA
| | - Yang Liu
- Environmental Toxicology Program University of California-Riverside Riverside CA 92521 USA
| | - Briana L. Hickey
- Department of Chemistry University of California-Riverside Riverside CA 92521 USA
| | - Wenwan Zhong
- Department of Chemistry University of California-Riverside Riverside CA 92521 USA
- Environmental Toxicology Program University of California-Riverside Riverside CA 92521 USA
| | - Richard J. Hooley
- Department of Chemistry University of California-Riverside Riverside CA 92521 USA
- Department of Biochemistry and Molecular Biology University of California-Riverside Riverside CA 92521 USA
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18
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Pilevar A, Hosseini A, Šekutor M, Hausmann H, Becker J, Turke K, Schreiner PR. Tuning the Reactivity of Peroxo Anhydrides for Aromatic C-H Bond Oxidation. J Org Chem 2018; 83:10070-10079. [PMID: 30063135 DOI: 10.1021/acs.joc.8b01392] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Phenol moieties are key structural motifs in many areas of chemical research from polymers to pharmaceuticals. Herein, we report on the design and use of a structurally demanding cyclic peroxide (spiro[bicyclo[2.2.1]heptane-2,4'-[1,2]dioxolane]-3',5'-dione, P4) for the direct hydroxylation of aromatic substrates. The new peroxide benefits from high thermal stability and can be synthesized from readily available starting materials. The aromatic C-H oxidation using P4 exhibits generally good yields (up to 96%) and appreciable regioselectivities.
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Affiliation(s)
- Afsaneh Pilevar
- Institute of Organic Chemistry , Justus Liebig University , Heinrich-Buff-Ring 17 , 35392 Giessen , Germany
| | - Abolfazl Hosseini
- Institute of Organic Chemistry , Justus Liebig University , Heinrich-Buff-Ring 17 , 35392 Giessen , Germany
| | - Marina Šekutor
- Department of Organic Chemistry and Biochemistry , Ruđer Bošković Institute , Bijenička cesta 54 , 10000 Zagreb , Croatia
| | - Heike Hausmann
- Institute of Organic Chemistry , Justus Liebig University , Heinrich-Buff-Ring 17 , 35392 Giessen , Germany
| | - Jonathan Becker
- Institute of Inorganic and Analytical Chemistry , Justus Liebig University , Heinrich-Buff-Ring 17 , 35392 Giessen , Germany
| | - Kevin Turke
- Institute of Physical Chemistry , Justus Liebig University , Heinrich-Buff-Ring 17 , 35392 Giessen , Germany
| | - Peter R Schreiner
- Institute of Organic Chemistry , Justus Liebig University , Heinrich-Buff-Ring 17 , 35392 Giessen , Germany
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19
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Palanichamy K, Bravo MF, Shlain MA, Schiro F, Naeem Y, Marianski M, Braunschweig AB. Binding Studies on a Library of Induced‐Fit Synthetic Carbohydrate Receptors with Mannoside Selectivity. Chemistry 2018; 24:13971-13982. [DOI: 10.1002/chem.201803317] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Kalanidhi Palanichamy
- Nanoscience Initiative Advanced Science Research Center at, The Graduate Center of the City University of New York 85 St Nicholas Terrace New York NY 10031 USA
- Department of Chemistry and Biochemistry Hunter College 695 Park Ave New York NY 10065 USA
| | - M. Fernando Bravo
- Nanoscience Initiative Advanced Science Research Center at, The Graduate Center of the City University of New York 85 St Nicholas Terrace New York NY 10031 USA
- Department of Chemistry and Biochemistry Hunter College 695 Park Ave New York NY 10065 USA
- The Ph.D. Program in Chemistry The Graduate Center of the City University of New York 365 5th Ave New York NY 10016 USA
| | - Milan A. Shlain
- Nanoscience Initiative Advanced Science Research Center at, The Graduate Center of the City University of New York 85 St Nicholas Terrace New York NY 10031 USA
- Department of Chemistry and Biochemistry Hunter College 695 Park Ave New York NY 10065 USA
| | - Frank Schiro
- Nanoscience Initiative Advanced Science Research Center at, The Graduate Center of the City University of New York 85 St Nicholas Terrace New York NY 10031 USA
- Department of Chemistry and Biochemistry Hunter College 695 Park Ave New York NY 10065 USA
| | - Yasir Naeem
- Nanoscience Initiative Advanced Science Research Center at, The Graduate Center of the City University of New York 85 St Nicholas Terrace New York NY 10031 USA
- Department of Chemistry and Biochemistry Hunter College 695 Park Ave New York NY 10065 USA
| | - Mateusz Marianski
- Department of Chemistry and Biochemistry Hunter College 695 Park Ave New York NY 10065 USA
- The Ph.D. Program in Chemistry The Graduate Center of the City University of New York 365 5th Ave New York NY 10016 USA
| | - Adam B. Braunschweig
- Nanoscience Initiative Advanced Science Research Center at, The Graduate Center of the City University of New York 85 St Nicholas Terrace New York NY 10031 USA
- Department of Chemistry and Biochemistry Hunter College 695 Park Ave New York NY 10065 USA
- The Ph.D. Program in Chemistry The Graduate Center of the City University of New York 365 5th Ave New York NY 10016 USA
- The Ph.D. Program in Biochemistry The Graduate Center of the City University of New York 365 5th Ave New York NY 10016 USA
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20
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Tailoring acyclovir prodrugs with enhanced antiviral activity: rational design, synthesis, human plasma stability and in vitro evaluation. Amino Acids 2018; 50:1131-1143. [DOI: 10.1007/s00726-018-2590-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 05/12/2018] [Indexed: 12/14/2022]
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21
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Conversion of carbonyl steroid derivatives to 1,1-dibromoalkenes by the catalytic olefination reaction and synthesis of functionally substituted steroids on their basis. Russ Chem Bull 2018. [DOI: 10.1007/s11172-018-2106-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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22
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Osati S, Ali H, Guérin B, van Lier JE. Steroid-photosensitizer conjugates: Syntheses and applications. J PORPHYR PHTHALOCYA 2018. [DOI: 10.1142/s108842461730004x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
This review focuses on progress in the development of different approaches to the design of steroid ([Formula: see text] estrogens, androgens, cholesterol) conjugates with coordination assemblies of metalloporphyrins, phthalocyanines and related complexes. Porphyrins and phthalocyanines have received considerable attention due to their novel composition, intriguing spectroscopic, photophysical, and redox properties, and potential application in light-harvesting and optoelectronic devices. With the development of more efficient imaging and therapeutic applications, these bio-conjugates are evaluated as multimodality agents (PET, fluorescence imaging) to monitor the mechanism of action of biologically active components in living systems and as agents for molecular recognition, oxygen atom transfer and catalysis. The tetrapyrrole components, which can be coupled via covalent and various non-covalent linkages, may exhibit strong interactions through efficient photo-induced electron and/or energy transfer processes.
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Affiliation(s)
- Samira Osati
- Department of nuclear medicine and radiobiology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada J1H5N4
| | - Hasrat Ali
- Department of nuclear medicine and radiobiology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada J1H5N4
| | - Brigitte Guérin
- Department of nuclear medicine and radiobiology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada J1H5N4
| | - Johan E. van Lier
- Department of nuclear medicine and radiobiology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada J1H5N4
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23
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Luo Z, Friščić T, Khaliullin RZ. Why pregnenolone and progesterone, two structurally similar steroids, exhibit remarkably different cocrystallization with aromatic molecules. Phys Chem Chem Phys 2018; 20:898-904. [PMID: 29184919 DOI: 10.1039/c7cp06828j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Selective binding of steroid molecules is of paramount importance for designing drugs that can target the biological pathways of only individual steroids.
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Affiliation(s)
- Ziling Luo
- Department of Chemistry
- McGill University
- 801 Sherbrooke St. West
- Montreal
- Canada
| | - Tomislav Friščić
- Department of Chemistry
- McGill University
- 801 Sherbrooke St. West
- Montreal
- Canada
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24
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Hong SC, Murale DP, Lee M, Lee SM, Park JS, Lee JS. Bulk Aggregation Based Fluorescence Turn-On Sensors for Selective Detection of Progesterone in Aqueous Solution. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709120] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Seong Cheol Hong
- Molecular Recognition Research Center; Korea Institute of Science and Technology (KIST) & Department of Biological Chemistry, KIST-School UST; 5, Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 South Korea
| | - Dhiraj P. Murale
- Molecular Recognition Research Center; Korea Institute of Science and Technology (KIST) & Department of Biological Chemistry, KIST-School UST; 5, Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 South Korea
| | - Minju Lee
- School of Chemical and Biomolecular Engineering; GeorgiaTech; 311 Ferst Drive NW Atlanta Georgia USA
| | - Seung Mi Lee
- Department of Obstetrics and Gynecology; Seoul National University College of Medicine; Seoul South Korea
| | - Joong Shin Park
- Department of Obstetrics and Gynecology; Seoul National University College of Medicine; Seoul South Korea
| | - Jun-Seok Lee
- Molecular Recognition Research Center; Korea Institute of Science and Technology (KIST) & Department of Biological Chemistry, KIST-School UST; 5, Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 South Korea
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25
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Hong SC, Murale DP, Lee M, Lee SM, Park JS, Lee JS. Bulk Aggregation Based Fluorescence Turn-On Sensors for Selective Detection of Progesterone in Aqueous Solution. Angew Chem Int Ed Engl 2017; 56:14642-14647. [PMID: 28960859 DOI: 10.1002/anie.201709120] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Indexed: 01/03/2023]
Abstract
Steroids are polycyclic compounds that share tetracyclic ring as core scaffold, and selective detection of a steroid is challenging owing to their structural similarities. The discovery of chemosensors that recognize progesterone by alteration of self-aggregation state is described, and these show significant fluorescence turn-on. A self-aggregated 48-membered dansyl library was screened against a series of metabolites in aqueous buffer and discovered two compounds (PG-1, PG-2) exhibited exceptional selectivity for progesterone. Following studies of aggregation properties of probes using dynamic light scattering and transmission electron microscopy supports progesterone recognition lead to the generation of bulk aggregates that induce fluorescence enhancement. Though many fluorescence sensing mechanisms have been proposed, a sensing mode based on the bulk aggregate formation of fluorophore has never been reported, and this may open a new avenue of chemosensor design.
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Affiliation(s)
- Seong Cheol Hong
- Molecular Recognition Research Center, Korea Institute of Science and Technology (KIST) & Department of Biological Chemistry, KIST-School UST, 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul, 02792, South Korea
| | - Dhiraj P Murale
- Molecular Recognition Research Center, Korea Institute of Science and Technology (KIST) & Department of Biological Chemistry, KIST-School UST, 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul, 02792, South Korea
| | - Minju Lee
- School of Chemical and Biomolecular Engineering, GeorgiaTech, 311 Ferst Drive NW, Atlanta, Georgia, USA
| | - Seung Mi Lee
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, South Korea
| | - Joong Shin Park
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, South Korea
| | - Jun-Seok Lee
- Molecular Recognition Research Center, Korea Institute of Science and Technology (KIST) & Department of Biological Chemistry, KIST-School UST, 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul, 02792, South Korea
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26
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NMR determination of concentration-switchable inclusion complex of a β-cyclodextrin derivative carrying a benzene group linked to a C,C-glucopyranoside spacer. J INCL PHENOM MACRO 2017. [DOI: 10.1007/s10847-017-0746-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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27
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Lazar AI, Biedermann F, Mustafina KR, Assaf KI, Hennig A, Nau WM. Nanomolar Binding of Steroids to Cucurbit[n]urils: Selectivity and Applications. J Am Chem Soc 2016; 138:13022-13029. [DOI: 10.1021/jacs.6b07655] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Alexandra I. Lazar
- Department
of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| | - Frank Biedermann
- Institute
of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz
Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Kamila R. Mustafina
- Department
of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| | - Khaleel I. Assaf
- Department
of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| | - Andreas Hennig
- Department
of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| | - Werner M. Nau
- Department
of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
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Pairas GN, Tsoungas PG. H-Bond: Τhe Chemistry-Biology H-Bridge. ChemistrySelect 2016; 1:4520-4532. [PMID: 32328512 PMCID: PMC7169486 DOI: 10.1002/slct.201600770] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Accepted: 07/29/2016] [Indexed: 12/19/2022]
Abstract
H-bonding, as a non covalent stabilizing interaction of diverse nature, has a central role in the structure, function and dynamics of chemical and biological processes, pivotal to molecular recognition and eventually to drug design. Types of conventional and non conventional (H-H, dihydrogen, H- π, CH- π, anti- , proton coordination and H-S) H-bonding interactions are discussed as well as features emerging from their interplay, such as cooperativity (σ- and π-) effects and allostery. Its utility in many applications is described. Catalysis, proton and electron transfer processes in various materials or supramolecular architectures of preorganized hosts for guest binding, are front-line technology. The H-bond-related concept of proton transfer (PT) addresses energy issues or deciphering the mechanism of many natural and synthetic processes. PT is also of paramount importance in the functions of cells and is assisted by large complex proteins embedded in membranes. Both intermolecular and intramolecular PT in H-bonded systems has received attention, theoretically and experimentally, using prototype molecules. It is found in rearrangement reactions, protein functions, and enzyme reactions or across proton channels and pumps. Investigations on the competition between intra- and intermolecular H bonding are discussed. Of particular interest is the H-bond furcation, a common phenomenon in protein-ligand binding. Multiple H-bonding (H-bond furcation) is observed in supramolecular structures.
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Affiliation(s)
- George N. Pairas
- Department of PharmacyLaboratory of Medicinal ChemistryUniversity of PatrasGR-265 04PatrasGreece
| | - Petros G. Tsoungas
- Laboratory of BiochemistryHellenic Pasteur Institute127 Vas. Sofias Ave.GR-115 21AthensGreece
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29
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Sroka A, Majerz I. A ring conformation of androstan-3-one. Mol Phys 2016. [DOI: 10.1080/00268976.2016.1177220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- A. Sroka
- Department of Analytical Chemistry, Faculty of Pharmacy, Wrocław Medical University, Wrocław, Poland
| | - I. Majerz
- Department of Analytical Chemistry, Faculty of Pharmacy, Wrocław Medical University, Wrocław, Poland
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30
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Cheng CYS, Slominski AT, Tuckey RC. Hydroxylation of 20-hydroxyvitamin D3 by human CYP3A4. J Steroid Biochem Mol Biol 2016; 159:131-41. [PMID: 26970587 PMCID: PMC4821771 DOI: 10.1016/j.jsbmb.2016.03.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 02/16/2016] [Accepted: 03/07/2016] [Indexed: 01/08/2023]
Abstract
20S-Hydroxyvitamin D3 [20(OH)D3] is the biologically active major product of the action of CYP11A1 on vitamin D3 and is present in human plasma. 20(OH)D3 displays similar therapeutic properties to 1,25-dihydroxyvitamin D3 [1,25(OH)2D3], but without causing hypercalcaemia and therefore has potential for development as a therapeutic drug. CYP24A1, the kidney mitochondrial P450 involved in inactivation of 1,25(OH)2D3, can hydroxylate 20(OH)D3 at C24 and C25, with the products displaying more potent inhibition of melanoma cell proliferation than 20(OH)D3. CYP3A4 is the major drug-metabolising P450 in liver endoplasmic reticulum and can metabolise other active forms of vitamin D, so we examined its ability to metabolise 20(OH)D3. We found that CYP3A4 metabolises 20(OH)D3 to three major products, 20,24R-dihydroxyvitamin D3 [20,24R(OH)2D3], 20,24S-dihydroxyvitamin D3 [20,24S(OH)2D3] and 20,25-dihydroxyvitamin D3 [20,25(OH)2D3]. 20,24R(OH)2D3 and 20,24S(OH)2D3, but not 20,25(OH)2D3, were further metabolised to trihydroxyvitamin D3 products by CYP3A4 but with low catalytic efficiency. The same three primary products, 20,24R(OH)2D3, 20,24S(OH)2D3 and 20,25(OH)2D3, were observed for the metabolism of 20(OH)D3 by human liver microsomes, in which CYP3A4 is a major CYP isoform present. Addition of CYP3A family-specific inhibitors, troleandomycin and azamulin, almost completely inhibited production of 20,24R(OH)2D3, 20,24S(OH)2D3 and 20,25(OH)2D3 by human liver microsomes, further supporting that CYP3A4 plays the major role in 20(OH)D3 metabolism by microsomes. Since both 20,24R(OH)2D3 and 20,25(OH)2D3 have previously been shown to display enhanced biological activity in inhibiting melanoma cell proliferation, our results show that CYP3A4 further activates, rather than inactivates, 20(OH)D3.
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Affiliation(s)
- Chloe Y S Cheng
- School of Chemistry and Biochemistry, The University of Western Australia, Crawley, WA 6009, Australia
| | - Andrzej T Slominski
- Department of Dermatology, University of Alabama at Birmingham, AL, USA; VA Medical Center, Birmingham, AL, USA
| | - Robert C Tuckey
- School of Chemistry and Biochemistry, The University of Western Australia, Crawley, WA 6009, Australia.
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31
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Pospieszny T, Pakiet M, Kowalczyk I, Brycki B. Design, synthesis and application of new bile acid ligands with 1,2,3-triazole ring. Supramol Chem 2016. [DOI: 10.1080/10610278.2016.1175568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Tomasz Pospieszny
- Laboratory of Microbiocides Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Poznań, Poland
| | - Marta Pakiet
- Laboratory of Microbiocides Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Poznań, Poland
| | - Iwona Kowalczyk
- Laboratory of Microbiocides Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Poznań, Poland
| | - Bogumił Brycki
- Laboratory of Microbiocides Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Poznań, Poland
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Li H, Mazet C. Catalyst-Directed Diastereoselective Isomerization of Allylic Alcohols for the Stereoselective Construction of C(20) in Steroid Side Chains: Scope and Topological Diversification. J Am Chem Soc 2015; 137:10720-7. [DOI: 10.1021/jacs.5b06281] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Houhua Li
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest
Ansermet, 1211 Geneva, Switzerland
| | - Clément Mazet
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest
Ansermet, 1211 Geneva, Switzerland
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Martí-Centelles V, Pandey MD, Burguete MI, Luis SV. Macrocyclization Reactions: The Importance of Conformational, Configurational, and Template-Induced Preorganization. Chem Rev 2015; 115:8736-834. [DOI: 10.1021/acs.chemrev.5b00056] [Citation(s) in RCA: 278] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
| | - Mrituanjay D. Pandey
- Departament de Química
Inorgànica i Orgànica, Universitat Jaume I, 12071 Castelló, Spain
| | - M. Isabel Burguete
- Departament de Química
Inorgànica i Orgànica, Universitat Jaume I, 12071 Castelló, Spain
| | - Santiago V. Luis
- Departament de Química
Inorgànica i Orgànica, Universitat Jaume I, 12071 Castelló, Spain
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Li D, Yang Y, Hu B, Yang C, Huo B, Wang A, Yu F, Xue L, Dong Y, Fan W. Synthesis and the Stimuli-Responsive Characteristics of Cyclic Cholamide Nicotinamide Adenine Dinucleotide (NAD+) Derivative with Aggregation in Basic Aqueous Solution. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Dazhi Li
- Department of Chemistry; University of Science and Technology Beijing, No. 30; Xueyuan Road Beijing 100083 China
| | - Yunxu Yang
- Department of Chemistry; University of Science and Technology Beijing, No. 30; Xueyuan Road Beijing 100083 China
| | - Biwei Hu
- Department of Chemistry; University of Science and Technology Beijing, No. 30; Xueyuan Road Beijing 100083 China
| | - Chao Yang
- Department of Chemistry; University of Science and Technology Beijing, No. 30; Xueyuan Road Beijing 100083 China
| | - Baolong Huo
- Department of Chemistry; University of Science and Technology Beijing, No. 30; Xueyuan Road Beijing 100083 China
| | - Aizhi Wang
- Department of Chemistry; University of Science and Technology Beijing, No. 30; Xueyuan Road Beijing 100083 China
| | - Feifei Yu
- Department of Chemistry; University of Science and Technology Beijing, No. 30; Xueyuan Road Beijing 100083 China
| | - Lingwei Xue
- Department of Chemistry; University of Science and Technology Beijing, No. 30; Xueyuan Road Beijing 100083 China
| | - Yajun Dong
- Department of Chemistry; University of Science and Technology Beijing, No. 30; Xueyuan Road Beijing 100083 China
| | - Weiping Fan
- Department of Chemistry; University of Science and Technology Beijing, No. 30; Xueyuan Road Beijing 100083 China
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Borah P, Borah JM, Chowdhury P. Microwave (MW) irradiated Ugi four-component reaction (Ugi-4CR): Expedited synthesis of steroid-amino acid conjugates--A novel class of hybrid compounds. Steroids 2015; 98:49-57. [PMID: 25701096 DOI: 10.1016/j.steroids.2015.02.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 01/20/2015] [Accepted: 02/09/2015] [Indexed: 10/24/2022]
Abstract
Microwave (MW) assisted chemical reactions are currently gaining considerable importance in organic synthesis to contribute in green technology. Considering the importance of peptidomimetic steroid-amino acid conjugates - a novel class of hybrid compounds having diverse biological properties, we report here synthesis of these compounds of alanine and valine methyl esters with seco-steroids (A, B and D ring cleavage) in expedited way by MW promoted Ugi-four-component reaction (Ugi-4CR).
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Affiliation(s)
- Preetismita Borah
- Natural Products Chemistry Division, CSIR-North East Institute of Science & Technology, Jorhat 785 006, Assam, India
| | - Juri Moni Borah
- Natural Products Chemistry Division, CSIR-North East Institute of Science & Technology, Jorhat 785 006, Assam, India
| | - Pritish Chowdhury
- Natural Products Chemistry Division, CSIR-North East Institute of Science & Technology, Jorhat 785 006, Assam, India.
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Kejík Z, Bříza T, Králová J, Mikula I, Poučková P, Martásek P, Král V. New method for recognition of sterol signalling molecules: methinium salts as receptors for sulphated steroids. Steroids 2015; 94:15-20. [PMID: 25478679 DOI: 10.1016/j.steroids.2014.10.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 10/02/2014] [Accepted: 10/14/2014] [Indexed: 10/24/2022]
Abstract
In this work, we studied indolium and benzothiazolium pentamethine salts 1-3 as novel type of receptors for the recognition of sulphated signalling molecules (sulphated steroids: oestrone, pregnenolone and cholesterol sulphate). A recognition study was performed in an aqueous medium (1mM phosphate buffer (H2O:MeOH; 99:1 (v/v))) at pH 7.34. The tested salts displayed a high affinity for these sulphated analytes, mainly for cholesterol sulphate. However, no interaction between the salts and control, non-sulphated sterol analytes (cholesterol and bile acid) was observed. The highest affinity for the sulphated steroids was observed for benzothiazole salt 1. This salt also displayed different spectral behaviour from that observed for carbocyanine salts 2 and 3. In this presence of cholesterol sulphate, benzothiazole salt 1 displayed significant spectral changes depending on the medium used: a blue shift in the aqueous medium and a red shift in the methanolic one (H2O:MeOH; 2:1 (v/v)). Subsequently preliminary in vivo study showed that, salt 1 significantly inhibits a growth of breast carcinoma on Nu/nu mice model.
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Affiliation(s)
- Zdeněk Kejík
- Institute of Chemical Technology, Technická 5, 166 28 Prague 6, Czech Republic; First Faculty of Medicine, Charles University in Prague, Kateřinská 32, 121 08 Prague 2, Czech Republic
| | - Tomáš Bříza
- Institute of Chemical Technology, Technická 5, 166 28 Prague 6, Czech Republic; First Faculty of Medicine, Charles University in Prague, Kateřinská 32, 121 08 Prague 2, Czech Republic
| | - Jarmila Králová
- Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Ivan Mikula
- First Faculty of Medicine, Charles University in Prague, Kateřinská 32, 121 08 Prague 2, Czech Republic
| | - Pavla Poučková
- First Faculty of Medicine, Charles University in Prague, Kateřinská 32, 121 08 Prague 2, Czech Republic
| | - Pavel Martásek
- First Faculty of Medicine, Charles University in Prague, Kateřinská 32, 121 08 Prague 2, Czech Republic
| | - Vladimír Král
- Institute of Chemical Technology, Technická 5, 166 28 Prague 6, Czech Republic; Zentiva Development (part of Sanofi Generic group), U Kabelovny 130, 102 37 Prague 10, Czech Republic.
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Xue M, Yu C, Wang G, Yu H, Fang Y. Novel Tri-Cholesteryl Derivatives-Based Low Molecular Mass Organic Gelators with Multi-Stimuli Responsive Properties. Aust J Chem 2015. [DOI: 10.1071/ch14437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Two novel tri-cholesteryl derivatives 1 and 2 have been designed and prepared. Gelation tests in 30 liquids revealed that 1 is a more efficient gelator than 2. Interestingly, the gel of 1/cyclohexane shows a reversible sol–gel phase transition in response to a variety of disparate stimuli such as temperature, stress, and HCl gas. In particular, a fully reversible thixotropic property was observed, which has been rarely reported before. Fourier transform infrared spectroscopy and 1H NMR measurements revealed that hydrogen bonding is an important driving force for the formation of the gel networks. The network structures of 1 and 2 in their cyclohexane gels were studied by scanning electron microscopy and X-ray diffraction analyses, and possible packing models were proposed accordingly. The findings demonstrated in the present work suggest that there is a big potential for developing tri-cholesteryl derivatives into extraordinary low molecular mass gelators.
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Sun X, Qi Y, Liu H, Peng J, Liu K, Fang Y. "Yin and Yang" tuned fluorescence sensing behavior of branched 1,4-bis(phenylethynyl)benzene. ACS APPLIED MATERIALS & INTERFACES 2014; 6:20016-20024. [PMID: 25313531 DOI: 10.1021/am505588x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Achieving high sensing performance and good photostability of fluorescent films based on adlayer construction represents a significant challenge in the area of functional fluorescent film research. A solution may be offered by "Yin and Yang", a balance idea from Chinese philosophy, for the design of a fluorophore and the relevant assembly. Accordingly, a 1,4-bis(phenylethynyl)benzene (BPEB) derivative (C2) with two cholesteryl residues in the side chains and two glucono units in the head and tail positions was designed and synthesized. As a control, compound C1 was also prepared. The only difference between C1 and C2 is that the hydroxyl groups in the glucono residues of C1 are fully acetylated. Studies of the fluorescence behaviors of the two compounds in solution revealed that both the profile and the intensity of the fluorescence emission of the compounds, in particular C2, are dependent on their concentration and on the nature of solvents employed. Presence of HCl also alters the emission of the compounds in solution. On the basis of the studies, three fluorescent films were prepared, and their sensing performances to HCl in vapor state were studied. Specifically, Film 1 and Film 3 were fabricated via physical coating, separately, of C2 and C1 on glass plate surfaces. As another comparison, Film 2 was also fabricated with C2 as a fluorophore but at a much lower concentration if compared to that for the preparation of Film 1. As revealed by SEM and fluorescent microscopy studies, Film 1 and Film 2 exhibit well-defined microstructures, which are spherical particles and spherical pores, respectively, while Film 3 is characterized by irregular aggregates of C1. Fluorescence measurements demonstrated that Film 1 and Film 3 both display an aggregation emission, of which the emission from Film 1 is supersensitive to the presence of HCl vapor (detection limit: 0.4 ppb, a lowest value reported in the literatures). For Film 3, however, its emission is insensitive to the presence of the vapor. Similarly, the emission from the nonaggregated state of C2, a characteristic emission of Film 2, is also insensitive to the presence of the vapor. Furthermore, the sensing process of Film 1 to the vapor is highly selective and fully reversible, which lays foundation for its real-life uses. As for C2, the results from solution studies and those from film studies demonstrate clearly that introduction of auxiliary structures with opposite properties onto a typical fluorophore is a good strategy to develop fluorescent supramolecular motifs with rich assembly properties and great potential of applications.
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Affiliation(s)
- Xiaohuan Sun
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University , Xi'an 710062, P. R. China
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Cheng CYS, Slominski AT, Tuckey RC. Metabolism of 20-hydroxyvitamin D3 by mouse liver microsomes. J Steroid Biochem Mol Biol 2014; 144 Pt B:286-93. [PMID: 25138634 PMCID: PMC4195795 DOI: 10.1016/j.jsbmb.2014.08.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 08/12/2014] [Accepted: 08/13/2014] [Indexed: 11/29/2022]
Abstract
20-Hydroxyvitamin D3 [20(OH)D3], the major product of CYP11A1 action on vitamin D3, is biologically active and like 1,25-dihydroxyvitamin D3 [1,25(OH)2D3] can inhibit proliferation and promote differentiation of a range of cells, and has anti-inflammatory properties. However, unlike 1,25(OH)2D3, it does not cause toxic hypercalcemia at high doses and is therefore a good candidate for therapeutic use to treat hyperproliferative and autoimmune disorders. In this study we analyzed the ability of mouse liver microsomes to metabolize 20(OH)D3. The two major products were identified from authentic standards as 20,24-dihydroxyvitamin D3 [20,24(OH)2D3] and 20,25-dihydroxyvitamin D3 [20,25(OH)2D3]. The reactions for synthesis of these two products from 20(OH)D3 displayed similar Km values suggesting that they were catalyzed by the same cytochrome P450. Some minor metabolites were produced by reactions with higher Km values for 20(OH)D3. Some metabolites gave mass spectra suggesting that they were the result of hydroxylation followed by dehydrogenation. One product had an increase in the wavelength for maximum absorbance from 263nm seen for 20(OH)D3, to 290nm, suggesting a new double bond was interacting with the vitamin D-triene chromophore. The two major products, 20,24(OH)2D3 and 20,25(OH)2D3 have both previously been shown to have higher potency for inhibition of colony formation by melanoma cells than 20(OH)D3, thus it appears that metabolism of 20(OH)D3 by mouse liver microsomes can generate products with enhanced activity.
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Affiliation(s)
- Chloe Y S Cheng
- School of Chemistry and Biochemistry, The University of Western Australia, Crawley, WA 6009, Australia
| | - Andrzej T Slominski
- Department of Pathology and Laboratory Medicine, Center for Adult Cancer Research, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Robert C Tuckey
- School of Chemistry and Biochemistry, The University of Western Australia, Crawley, WA 6009, Australia.
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Sokolova NV, Nenajdenko VG. Azidoisocyanides, New Bifunctional Reagents for Multicomponent Reactions and Biomolecule Modifications. Chem Nat Compd 2014. [DOI: 10.1007/s10600-014-0914-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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42
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Pospieszny T, Koenig H, Kowalczyk I, Brycki B. Synthesis, spectroscopic and theoretical studies of new quasi-podands from bile acid derivatives linked by 1,2,3-triazole rings. Molecules 2014; 19:2557-70. [PMID: 24566321 PMCID: PMC6270822 DOI: 10.3390/molecules19022557] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 02/19/2014] [Accepted: 02/20/2014] [Indexed: 11/16/2022] Open
Abstract
A novel method for the synthesis of bile acid derivatives has been developed using "click chemistry". Intermolecular 1,3-dipolar cycloaddition of the propargyl ester of bile acids and azide groups of 1,3,5-tris(azidomethyl)benzene gave a new quasi-podands with 1,2,3-triazole rings. The structures of the products were confirmed by spectral (1H-NMR, 13C-NMR, and FT-IR) analysis, mass spectrometry and PM5 semiempirical methods. Estimation of the pharmacotherapeutic potential has been accomplished for synthesized compounds on the basis of Prediction of Activity Spectra for Substances (PASS).
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Affiliation(s)
- Tomasz Pospieszny
- Laboratory of Microbiocide Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, Poznań 60-780, Poland.
| | - Hanna Koenig
- Laboratory of Microbiocide Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, Poznań 60-780, Poland.
| | - Iwona Kowalczyk
- Laboratory of Microbiocide Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, Poznań 60-780, Poland.
| | - Bogumił Brycki
- Laboratory of Microbiocide Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, Poznań 60-780, Poland.
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Taba F, Sum TH, Sintic PJ, Lundmark AH, Crossley MJ. Synthesis of Steroid–Porphyrin Conjugates from Oestradiol, Oestrone, and Lithocholic Acid. Aust J Chem 2014. [DOI: 10.1071/ch14080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The synthesis of porphyrin–steroid conjugates is examined using the natural steroids oestradiol, oestrone, and lithocholic acid as precursors. Two strategies differing in the timing of formation of the steroid–porphyrin linkage leading to four different construction motifs are explored. Two approaches are based on a strategy of introduction of steroidal components in the porphyrin-forming reaction involving condensation of steroidal-alkylaldehydes and pyrrole to give 5,10,15,20-tetrakis(steroidal-alkyl)porphyrins and differ in the way in which the required aldehyde is introduced to the steroidal component. In the other strategy, a steroidal component is introduced by post-porphyrin synthesis reactions and here also two approaches were explored, one involving nucleophilic substitution and the other esterification. Of the four approaches investigated, the most efficient and most versatile one attaches the steroidal components late in the sequence to a 5,10,15,20-tetra(ω-haloalkyl)porphyrin by a nucleophilic substitution reaction. In this way, a 5,10,15,20-tetrakis[oestrone-linked-heptyl)porphyrin was obtained in 47 % yield.
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Awino JK, Zhao Y. Protein-mimetic, molecularly imprinted nanoparticles for selective binding of bile salt derivatives in water. J Am Chem Soc 2013; 135:12552-5. [PMID: 23931721 DOI: 10.1021/ja406089c] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A tripropargylammonium surfactant with a methacrylate-terminated hydrophobic tail was combined with a bile salt derivative, divinyl benzene (DVB), and a photo-cross-linker above its critical micelle concentration (CMC). Surface-cross-linking with a diazide, surface-functionalization with an azido sugar derivative, and free-radical-core-cross-linking under UV irradiation yielded molecularly imprinted nanoparticles (MINPs) with template-specific binding pockets. The MINPs resemble protein receptors in size, complete water-solubility, and tailored binding sites in their hydrophobic cores. Strong and selective binding of bile salt derivatives was obtained, depending on the cross-linking density of the system.
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Affiliation(s)
- Joseph K Awino
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, USA
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Zhai SS, Chen Y, Liu Y. Selective binding of bile salts by β-cyclodextrin derivatives with appended quinolyl arms. CHINESE CHEM LETT 2013. [DOI: 10.1016/j.cclet.2013.04.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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48
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Solvent-induced molecular gel formation at room temperature and the preparation of related gel-emulsions. Sci China Chem 2013. [DOI: 10.1007/s11426-013-4869-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Rivera DG, León F, Concepción O, Morales FE, Wessjohann LA. A multiple multicomponent approach to chimeric peptide-peptoid podands. Chemistry 2013; 19:6417-28. [PMID: 23512744 DOI: 10.1002/chem.201201591] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Revised: 01/31/2013] [Indexed: 11/08/2022]
Abstract
The success of multi-armed, peptide-based receptors in supramolecular chemistry traditionally is not only based on the sequence but equally on an appropriate positioning of various peptidic chains to create a multivalent array of binding elements. As a faster, more versatile and alternative access toward (pseudo)peptidic receptors, a new approach based on multiple Ugi four-component reactions (Ugi-4CR) is proposed as a means of simultaneously incorporating several binding and catalytic elements into organizing scaffolds. By employing α-amino acids either as the amino or acid components of the Ugi-4CRs, this multiple multicomponent process allows for the one-pot assembly of podands bearing chimeric peptide-peptoid chains as appended arms. Tripodal, bowl-shaped, and concave polyfunctional skeletons are employed as topologically varied platforms for positioning the multiple peptidic chains formed by Ugi-4CRs. In a similar approach, steroidal building blocks with several axially-oriented isocyano groups are synthesized and utilized to align the chimeric chains with conformational constrains, thus providing an alternative to the classical peptido-steroidal receptors. The branched and hybrid peptide-peptoid appendages allow new possibilities for both rational design and combinatorial production of synthetic receptors. The concept is also expandable to other multicomponent reactions.
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Affiliation(s)
- Daniel G Rivera
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle/Saale, Germany
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Synthesis, crystal structure and NMR investigation of a new type of cyclic steroidal dimer based on brassinosteroids. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.07.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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