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Zuo C, Yan F, Wang J, Zhu Y, Luo W, Liu Y, Liang W, Yu W, Zhang J, Peng D, Ma X, Peng C. Design, synthesis, and evaluation of the novel ozagrel-paeonol codrug with antiplatelet aggregation activities as a potent anti-stroke therapeutic agent. Front Pharmacol 2024; 15:1362857. [PMID: 38567356 PMCID: PMC10985144 DOI: 10.3389/fphar.2024.1362857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 03/05/2024] [Indexed: 04/04/2024] Open
Abstract
Introduction: Ischemic stroke is the second most common chronic disease worldwide and is associated with high morbidity and mortality. Thromboembolism and platelet aggregation are the most characteristic features of stroke. Other than aspirin, no standard, accepted, or effective treatment for acute ischemic stroke has been established. Consequently, it is essential to identify novel therapeutic compounds for this condition. Methods: In this study, novel ozagrel/paeonol-containing codrugs were synthesized and characterized using 1H-NMR, 13C-NMR, and mass spectroscopy. Their antiplatelet aggregation activity was evaluated, with compound PNC3 found to exhibit the best effect. Subsequently, studies were conducted to assess its neuroprotective effect, pharmacokinetic properties and model its binding mode to P2Y12 and TXA2, two proteins critical for platelet aggregation. Results: The results indicated that PNC3 has good bioavailability and exerts protective effects against oxygen-glucose deprivation injury in PC12 cells. Molecular docking analysis further demonstrated that the compound interacts with residues located in the active binding sites of the target proteins. Conclusion: The codrugs synthesized in this study display promising pharmacological activities and have the potential for development as an oral formulation.
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Affiliation(s)
- Chijing Zuo
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Fulong Yan
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Jie Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Yulong Zhu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Wenhui Luo
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Yan Liu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Wanhui Liang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Weidong Yu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Jingwei Zhang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Daiyin Peng
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
- MOE-Anhui Joint Collaborative Innovation Center for Quality Improvement of Anhui Genuine Chinese Medicinal Materials, Hefei, China
| | - Xiaodong Ma
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Can Peng
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
- MOE-Anhui Joint Collaborative Innovation Center for Quality Improvement of Anhui Genuine Chinese Medicinal Materials, Hefei, China
- Generic Technology Research Center for Anhui TCM Industry, Anhui University of Chinese Medicine, Hefei, China
- Rural Revitalization Collaborative Technical Service Center of Anhui Province, Anhui University of Chinese Medicine, Hefei, China
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Hefei, Anhui, China
- Center for Xin’an Medicine and Modernization of Traditional Chinese Medicine of IHM, Anhui University of Chinese Medicine, Hefei, China
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Kembaren R, Kleijn JM, Borst JW, Kamperman M, Hofman AH. Enhanced stability of complex coacervate core micelles following different core-crosslinking strategies. SOFT MATTER 2022; 18:3052-3062. [PMID: 35363245 DOI: 10.1039/d2sm00088a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Complex coacervate core micelles (C3Ms) are formed by mixing aqueous solutions of a charged (bio)macromolecule with an oppositely charged-neutral hydrophilic diblock copolymer. The stability of these structures is dependent on the ionic strength of the solution; above a critical ionic strength, the micelles will completely disintegrate. This instability at high ionic strengths is the main drawback for their application in, e.g., drug delivery systems or protein protection. In addition, the stability of C3Ms composed of weak polyelectrolytes is pH-dependent as well. The aim of this study is to assess the effectiveness of covalent crosslinking of the complex coacervate core to improve the stability of C3Ms. We studied the formation of C3Ms using a quaternized and amine-functionalized cationic-neutral diblock copolymer, poly(2-vinylpyridine)-block-poly(ethylene oxide) (QP2VP-b-PEO), and an anionic homopolymer, poly(acrylic acid) (PAA). Two different core-crosslinking strategies were employed that resulted in crosslinks between both types of polyelectrolyte chains in the core (i.e., between QP2VP and PAA) or in crosslinks between polyelectrolyte chains of the same type only (i.e., QP2VP). For these two strategies we used the crosslinkers 1-ethyl-3-(3'-dimethylaminopropyl)carbodiimide hydrochloride (EDC) and dimethyl-3,3'-dithiopropionimidate dihydrochloride (DTBP), respectively. EDC provides permanent crosslinks, while DTBP crosslinks can be broken by a reducing agent. Dynamic light scattering showed that both approaches significantly improved the stability of C3Ms against salt and pH changes. Furthermore, reduction of the disulphide bridges in the DTBP core-crosslinked micelles largely restored the original salt-stability profile. Therefore, this feature provides an excellent starting point for the application of C3Ms in controlled release formulations.
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Affiliation(s)
- Riahna Kembaren
- Physical Chemistry and Soft Matter, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
- Laboratory of Biochemistry, Microspectroscopy Research Facility, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - J Mieke Kleijn
- Physical Chemistry and Soft Matter, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Jan Willem Borst
- Laboratory of Biochemistry, Microspectroscopy Research Facility, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Marleen Kamperman
- Polymer Science, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
| | - Anton H Hofman
- Polymer Science, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
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Padnya PL, Bayarashov EE, Zueva IV, Lushchekina SV, Lenina OA, Evtugyn VG, Osin YN, Petrov KA, Stoikov II. Water-soluble betaines and amines based on thiacalix[4]arene scaffold as new cholinesterase inhibitors. Bioorg Chem 2019; 94:103455. [PMID: 31791680 DOI: 10.1016/j.bioorg.2019.103455] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/29/2019] [Accepted: 11/18/2019] [Indexed: 12/30/2022]
Abstract
Novel ammonium and betaine derivatives of p-tert-butylthiacalix[4]arene in cone and 1,3-alternate conformation were synthesized with high yields for the first time. The obtained compounds form in water spherical nanoparticles. It was shown by molecular docking calculations and in vitro experiments that amino and betaine derivatives can inhibit acetylcholinesterase and butyrylcholinesterase on the level of pyridostigmine while the toxicity of the obtained compounds is much lower than that of pyridostigmine.
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Affiliation(s)
- Pavel L Padnya
- A.M. Butlerov Chemical Institute, Kazan Federal University, Kremlevskaya str. 18, Kazan 420008, Russian Federation
| | - Egor E Bayarashov
- A.M. Butlerov Chemical Institute, Kazan Federal University, Kremlevskaya str. 18, Kazan 420008, Russian Federation
| | - Irina V Zueva
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov str. 8, Kazan 420088, Russian Federation
| | - Sofya V Lushchekina
- N.M. Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Kosygina str. 4, Moscow 119334, Russian Federation
| | - Oksana A Lenina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov str. 8, Kazan 420088, Russian Federation
| | - Vladimir G Evtugyn
- Interdisciplinary Center for Analytical Microscopy, Kazan Federal University, Kremlevskaya str. 18, Kazan 420008, Russian Federation
| | - Yuri N Osin
- Interdisciplinary Center for Analytical Microscopy, Kazan Federal University, Kremlevskaya str. 18, Kazan 420008, Russian Federation
| | - Konstantin A Petrov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov str. 8, Kazan 420088, Russian Federation
| | - Ivan I Stoikov
- A.M. Butlerov Chemical Institute, Kazan Federal University, Kremlevskaya str. 18, Kazan 420008, Russian Federation.
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Synthesis of Tris-pillar[5]arene and Its Association with Phenothiazine Dye: Colorimetric Recognition of Anions. Molecules 2019; 24:molecules24091807. [PMID: 31083290 PMCID: PMC6539510 DOI: 10.3390/molecules24091807] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 04/29/2019] [Accepted: 05/08/2019] [Indexed: 12/25/2022] Open
Abstract
A multicyclophane with a core based on tris(2-aminoethyl)amine (TREN) linked by amide spacers to three fragments of pillar[5]arene was synthesized. The choice of the tris-amide core allowed the multicyclophane to bind to anion guests. The presence of three terminal pillar[5]arene units provides the possibility of effectively binding the colorimetric probe N-phenyl-3-(phenylimino)-3H-phenothiazin-7-amine (PhTz). It was established that the multicyclophane complexed PhTz in chloroform with a 1:1 stoichiometry (lgKa = 5.2 ± 0.1), absorbing at 650 nm. The proposed structure of the complex was confirmed by 1H-NMR spectroscopy: the amide group linking the pillar[5]arene to the TREN core forms a hydrogen bond with the PhTz imino-group while the pillararenes surround PhTz. It was established that the PhTz:tris-pillar[5]arene complex could be used as a colorimetric probe for fluoride, acetate, and dihydrogen phosphate anions due to the anion binding with proton donating amide groups which displaced the PhTz probe. Dye displacement resulted in a color change from blue to pink, lowering the absorption band at 650 nm and increasing that at 533 nm.
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