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Kotlova ER, Senik SV, Pozhvanov GA, Prokopiev IA, Boldyrev IA, Manzhieva BS, Amigud EY, Puzanskiy RK, Khakulova AA, Serebryakov EB. Uptake and Metabolic Conversion of Exogenous Phosphatidylcholines Depending on Their Acyl Chain Structure in Arabidopsis thaliana. Int J Mol Sci 2023; 25:89. [PMID: 38203257 PMCID: PMC10778594 DOI: 10.3390/ijms25010089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/11/2023] [Accepted: 12/16/2023] [Indexed: 01/12/2024] Open
Abstract
Fungi and plants are not only capable of synthesizing the entire spectrum of lipids de novo but also possess a well-developed system that allows them to assimilate exogenous lipids. However, the role of structure in the ability of lipids to be absorbed and metabolized has not yet been characterized in detail. In the present work, targeted lipidomics of phosphatidylcholines (PCs) and phosphatidylethanolamines (PEs), in parallel with morphological phenotyping, allowed for the identification of differences in the effects of PC molecular species introduced into the growth medium, in particular, typical bacterial saturated (14:0/14:0, 16:0/16:0), monounsaturated (16:0/18:1), and typical for fungi and plants polyunsaturated (16:0/18:2, 18:2/18:2) species, on Arabidopsis thaliana. For comparison, the influence of an artificially synthesized (1,2-di-(3-(3-hexylcyclopentyl)-propanoate)-sn-glycero-3-phosphatidylcholine, which is close in structure to archaeal lipids, was studied. The phenotype deviations stimulated by exogenous lipids included changes in the length and morphology of both the roots and leaves of seedlings. According to lipidomics data, the main trends in response to exogenous lipid exposure were an increase in the proportion of endogenic 18:1/18:1 PC and 18:1_18:2 PC molecular species and a decrease in the relative content of species with C18:3, such as 18:3/18:3 PC and/or 16:0_18:3 PC, 16:1_18:3 PE. The obtained data indicate that exogenous lipid molecules affect plant morphology not only due to their physical properties, which are manifested during incorporation into the membrane, but also due to the participation of exogenous lipid molecules in the metabolism of plant cells. The results obtained open the way to the use of PCs of different structures as cellular regulators.
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Affiliation(s)
- Ekaterina R. Kotlova
- Komarov Botanical Institute, Russian Academy of Sciences, 197022 Saint-Petersburg, Russia; (S.V.S.); (G.A.P.); (I.A.P.); (B.S.M.); (E.Y.A.); (R.K.P.)
| | - Svetlana V. Senik
- Komarov Botanical Institute, Russian Academy of Sciences, 197022 Saint-Petersburg, Russia; (S.V.S.); (G.A.P.); (I.A.P.); (B.S.M.); (E.Y.A.); (R.K.P.)
| | - Gregory A. Pozhvanov
- Komarov Botanical Institute, Russian Academy of Sciences, 197022 Saint-Petersburg, Russia; (S.V.S.); (G.A.P.); (I.A.P.); (B.S.M.); (E.Y.A.); (R.K.P.)
- Department of Botany and Ecology, Faculty of Biology, Herzen State Pedagogical University, 191186 Saint-Petersburg, Russia
| | - Ilya A. Prokopiev
- Komarov Botanical Institute, Russian Academy of Sciences, 197022 Saint-Petersburg, Russia; (S.V.S.); (G.A.P.); (I.A.P.); (B.S.M.); (E.Y.A.); (R.K.P.)
| | - Ivan A. Boldyrev
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119991 Moscow, Russia;
| | - Bairta S. Manzhieva
- Komarov Botanical Institute, Russian Academy of Sciences, 197022 Saint-Petersburg, Russia; (S.V.S.); (G.A.P.); (I.A.P.); (B.S.M.); (E.Y.A.); (R.K.P.)
| | - Ekaterina Ya. Amigud
- Komarov Botanical Institute, Russian Academy of Sciences, 197022 Saint-Petersburg, Russia; (S.V.S.); (G.A.P.); (I.A.P.); (B.S.M.); (E.Y.A.); (R.K.P.)
- Department of Botany and Ecology, Faculty of Biology, Herzen State Pedagogical University, 191186 Saint-Petersburg, Russia
| | - Roman K. Puzanskiy
- Komarov Botanical Institute, Russian Academy of Sciences, 197022 Saint-Petersburg, Russia; (S.V.S.); (G.A.P.); (I.A.P.); (B.S.M.); (E.Y.A.); (R.K.P.)
| | - Anna A. Khakulova
- Chemical Analysis and Materials Research Core Facility Center, Reseach Park, Saint-Petersburg State University, 199034 Saint-Petersburg, Russia; (A.A.K.); (E.B.S.)
| | - Evgeny B. Serebryakov
- Chemical Analysis and Materials Research Core Facility Center, Reseach Park, Saint-Petersburg State University, 199034 Saint-Petersburg, Russia; (A.A.K.); (E.B.S.)
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Whaley AO, Ivkin DY, Zhaparkulova KA, Olusheva IN, Serebryakov EB, Smirnov SN, Semivelichenko ED, Grishina AY, Karpov AA, Eletckaya EI, Kozhanova KK, Ibragimova LN, Tastambek KT, Seitaliyeva AM, Terninko II, Sakipova ZB, Shikov AN, Povydysh MN, Whaley AK. Chemical composition and cardiotropic activity of Ziziphora clinopodioides subsp. bungeana (Juz.) Rech.f. J Ethnopharmacol 2023:116660. [PMID: 37253397 DOI: 10.1016/j.jep.2023.116660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/13/2023] [Accepted: 05/17/2023] [Indexed: 06/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ziziphora clinopodioides subsp. bungeana (Juz.) Rech.f. is a subshrub that is widely distributed in China, Kazakhstan, Kyrgyzstan, Mongolia, Russia, Tajikistan, Turkmenistan, and Uzbekistan. The species is used in traditional medicine for the relief of symptoms connected to cardiovascular diseases like coronary heart disease or hypertension. AIM OF THE STUDY was to validate traditional use of Z. clinopodioides subsp. bungeana for the treatment of coronary hearth diseases using in vivo models and to find active compounds responsible for the activity. MATERIALS AND METHODS Multiple extracts were obtained from the aerial parts of Z. clinopodioides subsp. bungeana using maceration, liquid-liquid extraction, CO2 extraction and ultrasound-assisted extraction. Preliminary screening studies for the evaluation of the efficacy of Z. clinopodioides subsp. bungeana extracts on the model of hemic hypoxia were performed. The most effective samples were selected and included in the main study. Stage 2 of the study evaluated the cardiotropic activity of the selected extracts on a model of chronic heart failure. Preparations were administered to animals intragastrically once a day for 28 days. For the isolation of individual compounds plant material was extracted with 96% ethanol. The obtained crude extract was sequentially extracted with n-hexane and dichloromethane and separated by chromatography on a Diaion HP-20 column. The obtained fractions were further subjected to Sephadex LH-20 column chromatography and eluted isocratically with 96% ethanol (EtOH) to yield subfractions, which were further separated by preparative HPLC to obtain 13 individual compounds. RESULTS Extracts obtained from Ziziphora clinopodioides subsp. bungeana (Juz.) Rech.f. herb were subjected to pharmacological screening for the evaluation of their efficacy on hemic hypoxia. Based on the obtained results, out of the sixteen tested extracts two (AR and US 60%) were selected for further evaluation of their cardiotropic activity. Modeling of chronic heart failure was carried out in accordance with the following stages: 1) anesthesia with chloral hydrate at a dose of 450 mg/kg, intraperitoneally, 2) artificial ventilation of the lungs, 3) thoracotomy, 4) modeling of permanent ischemic or ischemic-reperfusion damage. Both extracts effected the indicators of contraction and output, comparable to the reference drug - Monopril. Based on the extraction methods used to obtain RAF and US60 and data from the literature, it can be assumed that they contain compounds with medium polarity, including polyphenols and terpenoids. At the next stage three previously undescribed monoterpenoid derivatives - Ziziphoric acid (1), Ziziphoroside D (2) and 6'-malonylziziphoroside A (3), along with two previously described megastigmane glucosides - blumenol C glucoside (4), blumenol C 9-O-(6'-O-malonyl-beta-D-glucopyranoside (5) and two previously described monoterpenoids 7a-hydroxymintlactone (6), 7-hydroxypiperitone (7) together with six polyphenols - pinocembrine-7-O-rutinoside (8), chrysine-7-O-rutinoside (9), acacetin-7-O-rutinoside (10), luteolin-7-O-rutinoside (11), rutin (12) and rosmarinic acid (13) were isolated from Z. clinopodioides subsp. bungeana extracts. CONCLUSION Our results support the traditional use of Z. clinopodioides subsp. bungeana for the treatment of coronary diseases. As a result of Z. clinopodioides subsp. bungeana extracts screening in vivo, two extracts were selected as potential cardiotropic agents. Phytochemical analysis of the plant material led to the isolation of five terpenoid derivatives, two megastigmane glycosides, five flavonoids and one cinnamic acid derivative, which could be responsible for the reported biological activity. Future experiments are required to understand the mechanisms of action for the isolated compounds.
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Affiliation(s)
- A O Whaley
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacognosy, Russia
| | - D Y Ivkin
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacology and Clinical Pharmacology, Russia
| | - K A Zhaparkulova
- School of Pharmacy, S.D. Asfendiyarov Kazakh National Medical University, Tole-bi 94, 050012, Almaty, Kazakhstan
| | - I N Olusheva
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacognosy, Russia
| | - E B Serebryakov
- Saint Petersburg State University, Universitetskii pr. 26, St. Petersburg, 198504, Russia
| | - S N Smirnov
- Saint Petersburg State University, Universitetskii pr. 26, St. Petersburg, 198504, Russia
| | - E D Semivelichenko
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacology and Clinical Pharmacology, Russia
| | - A Yu Grishina
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacology and Clinical Pharmacology, Russia
| | - A A Karpov
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacology and Clinical Pharmacology, Russia
| | - E I Eletckaya
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacology and Clinical Pharmacology, Russia
| | - K K Kozhanova
- School of Pharmacy, S.D. Asfendiyarov Kazakh National Medical University, Tole-bi 94, 050012, Almaty, Kazakhstan
| | - L N Ibragimova
- School of Pharmacy, S.D. Asfendiyarov Kazakh National Medical University, Tole-bi 94, 050012, Almaty, Kazakhstan
| | - K T Tastambek
- School of Pharmacy, S.D. Asfendiyarov Kazakh National Medical University, Tole-bi 94, 050012, Almaty, Kazakhstan; Ecology Research Institute, Khoja Akhmet Yassawi International Kazakh-Turkish University, Turkistan, 161200, Kazakhstan; Department of Biotechnology, M. Auezov South Kazakhstan University, Shymkent, 160012, Kazakhstan
| | - A M Seitaliyeva
- Higher School of Medicine, Al-Farabi Kazakh National University, Tole-bi 96, 050012, Almaty, Kazakhstan
| | - I I Terninko
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Center for Quality Control of Medicines, Russia
| | - Z B Sakipova
- School of Pharmacy, S.D. Asfendiyarov Kazakh National Medical University, Tole-bi 94, 050012, Almaty, Kazakhstan
| | - A N Shikov
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacognosy, Russia
| | - M N Povydysh
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacognosy, Russia.
| | - A K Whaley
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacognosy, Russia
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Shumilina J, Kiryushkin AS, Frolova N, Mashkina V, Ilina EL, Puchkova VA, Danko K, Silinskaya S, Serebryakov EB, Soboleva A, Bilova T, Orlova A, Guseva ED, Repkin E, Pawlowski K, Frolov A, Demchenko KN. Integrative Proteomics and Metabolomics Analysis Reveals the Role of Small Signaling Peptide Rapid Alkalinization Factor 34 (RALF34) in Cucumber Roots. Int J Mol Sci 2023; 24:ijms24087654. [PMID: 37108821 PMCID: PMC10140933 DOI: 10.3390/ijms24087654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 03/30/2023] [Accepted: 04/05/2023] [Indexed: 04/29/2023] Open
Abstract
The main role of RALF small signaling peptides was reported to be the alkalization control of the apoplast for improvement of nutrient absorption; however, the exact function of individual RALF peptides such as RALF34 remains unknown. The Arabidopsis RALF34 (AtRALF34) peptide was proposed to be part of the gene regulatory network of lateral root initiation. Cucumber is an excellent model for studying a special form of lateral root initiation taking place in the meristem of the parental root. We attempted to elucidate the role of the regulatory pathway in which RALF34 is a participant using cucumber transgenic hairy roots overexpressing CsRALF34 for comprehensive, integrated metabolomics and proteomics studies, focusing on the analysis of stress response markers. CsRALF34 overexpression resulted in the inhibition of root growth and regulation of cell proliferation, specifically in blocking the G2/M transition in cucumber roots. Based on these results, we propose that CsRALF34 is not part of the gene regulatory networks involved in the early steps of lateral root initiation. Instead, we suggest that CsRALF34 modulates ROS homeostasis and triggers the controlled production of hydroxyl radicals in root cells, possibly associated with intracellular signal transduction. Altogether, our results support the role of RALF peptides as ROS regulators.
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Affiliation(s)
- Julia Shumilina
- Saint Petersburg State University, 199034 Saint Petersburg, Russia
| | - Alexey S Kiryushkin
- Laboratory of Cellular and Molecular Mechanisms of Plant Development, Komarov Botanical Institute, Russian Academy of Sciences, 197022 Saint Petersburg, Russia
| | - Nadezhda Frolova
- Saint Petersburg State University, 199034 Saint Petersburg, Russia
| | - Valeria Mashkina
- Saint Petersburg State University, 199034 Saint Petersburg, Russia
| | - Elena L Ilina
- Laboratory of Cellular and Molecular Mechanisms of Plant Development, Komarov Botanical Institute, Russian Academy of Sciences, 197022 Saint Petersburg, Russia
| | - Vera A Puchkova
- Laboratory of Cellular and Molecular Mechanisms of Plant Development, Komarov Botanical Institute, Russian Academy of Sciences, 197022 Saint Petersburg, Russia
| | - Katerina Danko
- Saint Petersburg State University, 199034 Saint Petersburg, Russia
| | | | | | - Alena Soboleva
- Laboratory of Analytical Biochemistry and Biotechnology, Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, 127276 Moscow, Russia
| | - Tatiana Bilova
- Saint Petersburg State University, 199034 Saint Petersburg, Russia
| | - Anastasia Orlova
- Laboratory of Analytical Biochemistry and Biotechnology, Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, 127276 Moscow, Russia
| | - Elizaveta D Guseva
- Laboratory of Cellular and Molecular Mechanisms of Plant Development, Komarov Botanical Institute, Russian Academy of Sciences, 197022 Saint Petersburg, Russia
| | - Egor Repkin
- Saint Petersburg State University, 199034 Saint Petersburg, Russia
| | - Katharina Pawlowski
- Department of Ecology, Environment and Plant Sciences, Stockholm University, 10691 Stockholm, Sweden
| | - Andrej Frolov
- Laboratory of Analytical Biochemistry and Biotechnology, Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, 127276 Moscow, Russia
| | - Kirill N Demchenko
- Laboratory of Cellular and Molecular Mechanisms of Plant Development, Komarov Botanical Institute, Russian Academy of Sciences, 197022 Saint Petersburg, Russia
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Petrochenko AA, Orlova A, Frolova N, Serebryakov EB, Soboleva A, Flisyuk EV, Frolov A, Shikov AN. Natural Deep Eutectic Solvents for the Extraction of Triterpene Saponins from Aralia elata var. mandshurica (Rupr. & Maxim.) J. Wen. Molecules 2023; 28:molecules28083614. [PMID: 37110849 PMCID: PMC10140851 DOI: 10.3390/molecules28083614] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 04/06/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
The roots of the medicinal plant Aralia elata are rich in biologically active natural products, with triterpene saponins constituting one of their major groups. These metabolites can be efficiently extracted by methanol and ethanol. Due to their low toxicity, natural deep eutectic solvents (NADES) were recently proposed as promising alternative extractants for the isolation of natural products from medicinal plants. However, although NADES-based extraction protocols are becoming common in routine phytochemical work, their application in the isolation of triterpene saponins has not yet been addressed. Therefore, here, we address the potential of NADES in the extraction of triterpene saponins from the roots of A. elata. For this purpose, the previously reported recoveries of Araliacea triterpene saponins in extraction experiments with seven different acid-based NADES were addressed by a targeted LC-MS-based quantitative approach for, to the best of our knowledge, the first time. Thereby, 20 triterpene saponins were annotated by their exact mass and characteristic fragmentation patterns in the total root material, root bark and root core of A. elata by RP-UHPLC-ESI-QqTOF-MS, with 9 of them being identified in the roots of this plant for the first time. Triterpene saponins were successfully extracted from all tested NADES, with the highest efficiency (both in terms of the numbers and recoveries of individual analytes) achieved using a 1:1 mixture of choline chloride and malic acid, as well as a 1:3 mixture of choline chloride and lactic acid. Thereby, for 13 metabolites, NADES were more efficient extractants in comparison with water and ethanol. Our results indicate that new, efficient NADES-based extraction protocols, giving access to high recoveries of triterpene saponins, might be efficiently employed in laboratory practice. Thus, our data open the prospect of replacing alcohols with NADES in the extraction of A. elata roots.
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Affiliation(s)
- Alyona A Petrochenko
- Department of Technology of Pharmaceutical Formulations, St. Petersburg State Chemical Pharmaceutical University, 197376 Saint-Petersburg, Russia
| | - Anastasia Orlova
- Laboratory of Analytical Biochemistry and Biotechnology, K.A. Timiryazev Institute of Plant Physiology RAS, 127276 Moscow, Russia
| | - Nadezhda Frolova
- Department of Plant Physiology and Biochemistry, St. Petersburg State University, 199034 Saint-Petersburg, Russia
| | - Evgeny B Serebryakov
- Chemical Analysis and Materials Research Centre, St. Petersburg State University, 198504 Saint-Petersburg, Russia
| | - Alena Soboleva
- Laboratory of Analytical Biochemistry and Biotechnology, K.A. Timiryazev Institute of Plant Physiology RAS, 127276 Moscow, Russia
| | - Elena V Flisyuk
- Department of Technology of Pharmaceutical Formulations, St. Petersburg State Chemical Pharmaceutical University, 197376 Saint-Petersburg, Russia
| | - Andrej Frolov
- Laboratory of Analytical Biochemistry and Biotechnology, K.A. Timiryazev Institute of Plant Physiology RAS, 127276 Moscow, Russia
| | - Alexander N Shikov
- Department of Technology of Pharmaceutical Formulations, St. Petersburg State Chemical Pharmaceutical University, 197376 Saint-Petersburg, Russia
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Whaley AK, Ponkratova AO, Orlova AA, Volobuev SV, Shakhova NV, Serebryakov EB, Smirnov SN, Pustovit NV, Kraeva LA, Luzhanin VG. New benzoquinone pigments from the hydnoid fungus Sarcodontia setosa and their biosynthetic relationship. Nat Prod Res 2023:1-10. [PMID: 37004996 DOI: 10.1080/14786419.2023.2195176] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
Abstract
Chemical investigation of the hydnoid fungus Sarcodontia setosa resulted in the isolation of five compounds, including two new sarcodontic acid derivatives - setosic acid (1) and 7,8-dehydrohomosarcodontic acid (2) along with three known benzoquinone pigments - sarcodontic acid (3), 4,5-dehydrosarcodontic acid (4) and dihydrosarcodontic acid (5). The structures were elucidated using spectroscopic methods (UV, NMR and HR-ESIMS). The biosynthetic relationship of the isolated compounds is proposed and discussed. Antibacterial activity screening of compounds 1-5 against ESKAPE bacterial strains in vitro with zones of inhibition was performed and MIC values were established for the most active compounds (3 and 5).
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Affiliation(s)
- Andrei K Whaley
- Department of Pharmacognosy, Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Russian Federation
| | - Anastasiia O Ponkratova
- Department of Pharmacognosy, Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Russian Federation
| | - Anastasia A Orlova
- Laboratory of Analytical biochemistry and biotechnology, K.A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Moscow, Russian Federation
| | - Sergey V Volobuev
- Laboratory of Systematics and Geography of Fungi, Komarov Botanical Institute, Russian Academy of Sciences, Russian Federation
| | - Natalia V Shakhova
- Laboratory of Biochemistry of Fungi, Komarov Botanical Institute, Russian Academy of Sciences, Russian Federation
| | | | - Sergey N Smirnov
- Research Park, Saint Petersburg State University, Russian Federation
| | - Natalia V Pustovit
- Department of Molecular biotechnology, Saint Petersburg State Institute of Technology, St. Petersburg, Russian Federation
| | - Liudmila A Kraeva
- Laboratory of Medicinal bacteriology, Saint Petersburg Pasteur Institute, Russian Federation
| | - Vladimir G Luzhanin
- Department of Botany, Perm State Chemical Pharmaceutical Academy, Perm, Russian Federation
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Erkin AV, Serebryakov EB, Krutikov VI. 2-[(2-Amino-6-methylpyrimidin-4-yl)sulfanyl]-N-arylacetamides: Discovery of a new class of anti-tubercular agents and prospects for their further structural modification. Bioorg Med Chem Lett 2023; 83:129189. [PMID: 36805047 DOI: 10.1016/j.bmcl.2023.129189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/13/2023] [Accepted: 02/13/2023] [Indexed: 02/19/2023]
Abstract
The synthesis of 2-[(2-amino-6-methylpyrimidin-4-yl)sulfanyl]-N-arylacetamides 6a-j was encouraged by their antibacterial activity and drug-likeness predictions. Of the compounds, two bearing 4‑isopropylphenyl 6c and 2,5‑dichlorophenyl 6i moieties were found to be threefold more potent than the first-line tuberculosis drug ethambutol. A molecular docking study revealed that compound 6c may selectively bind to cyclopropane mycolic acid synthase 1, an enzyme essential for the construction of the tuberculosis bacteria cell wall. Keeping this in mind, a recently developed ligand-based virtual screening strategy combining the molecular similarity search and docking approaches was adopted to identify more potent analogs of the parent compound. As a result, a series of new ligands 18p-w with phenyl-substituted azinyl amide groups were in silico discovered. Due to their high binding affinities to the enzyme and improved toxicity profiles, the ligands are undoubtedly worth future synthetic efforts.
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Affiliation(s)
- Andrei V Erkin
- Department of Chemistry and Technology of Synthetic Biologically Active Compounds, Saint Petersburg State Institute of Technology (Technical University), Saint Petersburg 190013, Russia.
| | - Evgeny B Serebryakov
- Chemical Analysis and Materials Research Centre, Saint Petersburg State University, Saint Petersburg 198504, Russia
| | - Viktor I Krutikov
- Department of Chemistry and Technology of Synthetic Biologically Active Compounds, Saint Petersburg State Institute of Technology (Technical University), Saint Petersburg 190013, Russia
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Ponkratova AO, Vedernikov DN, Whaley AK, Kuncova MN, Smirnov SN, Serebryakov EB, Spiridonova DV, Luzhanin VG. New cyclic diarylheptanoids from the false heartwood of Betula pubescens Ehrh. Nat Prod Res 2021; 36:5499-5507. [PMID: 34935543 DOI: 10.1080/14786419.2021.2017930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Two undescribed (1-2) and five known cyclic diarylheptanoids (3-7) were isolated from the false heartwood of white birch (Betula pubescens Ehrh.). All structures were elucidated through extensive 1D and 2D NMR experiments and HR-ESI-MS data, along with comparison of their spectroscopic data with those reported in the literature. The two new cyclic diarylheptanoids are betuladiol (1) and betulondiol (2). Extracts from false heartwood were evaluated for their antimicrobial activity against Klebsiella pneumoniae, Escherichia coli, Proteus mirabilis, Staphylococcus aureus and Cutibacterium acnes together with their antifungal activity against Candida albicans and Candida glabrata.
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Affiliation(s)
- Anastasiia O Ponkratova
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Russian Federation
| | - Dmitry N Vedernikov
- Saint Petersburg State Forest Technical University named after S.M. Kirov, Saint Petersburg, Russian Federation
| | - Andrei K Whaley
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Russian Federation
| | - Maria N Kuncova
- Saint Petersburg State Forest Technical University named after S.M. Kirov, Saint Petersburg, Russian Federation
| | - Sergey N Smirnov
- Saint Petersburg State University, St. Petersburg, Russian Federation
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Ponkratova AO, Whaley AK, Orlova AA, Smirnov SN, Serebryakov EB, Proksch P, Luzhanin VG. A new dimethoxy dihydrochalcone isolated from the shoots of Empetrum nigrum L. Nat Prod Res 2021; 36:5142-5147. [PMID: 33949278 DOI: 10.1080/14786419.2021.1920584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
A new dihydrochalcone, 2',4'-dimethoxydihydrochalcone (1), together with 7 known compounds, 2',4'-dihydroxydihydrochalcone (2), 2'-hydroxy-4'-methoxydihydrochalcone (3), 2'-hydroxy-4'-methoxychalcone (4), 1-(3,5-dihydroxy-4-methoxyphenyl)-2-(3-hydroxyphenyl) ethane (5), 2,3,4,7-tetramethoxy-9,10-dihydrophenanthrene (6), 5-hydroxy-2,3,4-trimethoxy-9,10-dihydrophenanthrene (7) and 5,7-dihydroxy-6,8-dimethyl flavanone (8) were isolated from the shoots of Empetrum nigrum L. The structures of these compounds were elucidated using 1D and 2D NMR experiments along with HR-ESI-MS. Compound 6 is reported for the genus Empetrum for the first time.
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Affiliation(s)
- Anastasiia O Ponkratova
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Russian Federation
| | - Andrei K Whaley
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Russian Federation
| | - Anastasia A Orlova
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Russian Federation
| | - Sergey N Smirnov
- Saint Petersburg State University, St. Petersburg, Russian Federation
| | | | - Peter Proksch
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Vladimir G Luzhanin
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Russian Federation
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Serebryakov EB, Zakusilo DN, Semenov KN, Charykov NA, Akentiev AV, Noskov BA, Petrov AV, Podolsky NE, Mazur AS, Dul'neva LV, Murin IV. Physico-chemical properties of C70-l-threonine bisadduct (C70(C4H9NO2)2) aqueous solutions. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.02.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Serebryakov EB, Semenov KN, Stepanyuk IV, Charykov NA, Mescheryakov AN, Zhukov AN, Chaplygin AV, Murin IV. Physico-chemical properties of the C 70 - l -lysine aqueous solutions. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.02.057] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Charykov NA, Semenov KN, López ER, Fernández J, Serebryakov EB, Keskinov VA, Murin IV. Excess thermodynamic functions in aqueous systems containing soluble fullerene derivatives. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.01.177] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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