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Boateng ID, Yang XM, Yin H, Liu W. Separation and purification of polyprenols from Ginkgo biloba leaves by silver ion anchored on imidazole-based ionic liquid functionalized mesoporous MCM-41 sorbent. Food Chem 2024; 450:139284. [PMID: 38640543 DOI: 10.1016/j.foodchem.2024.139284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 02/11/2024] [Accepted: 04/06/2024] [Indexed: 04/21/2024]
Abstract
Polyprenols (PPs) are compounds with excellent biological activities and are applied in food, pharmaceutical, and cosmetic industries. However, its strong non-polar nature makes it difficult to separate with many saturated impurities (such as saturated fatty acids) extracted together. Complexation extraction is an effective method for separating saturated and polyunsaturated compounds. In this study, mesoporous silica MCM-41 was modified by imidazole-based ionic liquids (IL) followed by coating these MCM-41-supported IL compounds with silver salt to construct π-complexing adsorbent (AgBF4/IL•MCM-41) to enrich PPs from Ginkgo biloba leaves (GBL) extract. The mesoporous π-complexing sorbent was characterized by small-angle X-ray scattering (SAXS), FTIR, and nitrogen adsorption-desorption. The effect of the ratio of silver salt to IL•MCM-41 on the adsorption capacity of polyprenols from GBL was compared, and the dosage of AgBF4 was determined to be 1.5 mmol/g IL•MCM-41. Adsorption isotherms and kinetics indicate that the π-complexing adsorbent has excellent PPs adsorption performance (153 mg/g at 30 °C) and a fast adsorption rate (the time to reach adsorption equilibrium is 210 s). The PPs were separated using the fixed bed after treatment for only one cycle with AgBF4/IL•MCM-41, and the content of PPs in the product was increased from 38.54% to 70.2%, with a recovery rate of 86.6%. The π-complexing adsorbent showed excellent reusability for ≥3 adsorption-desorption cycles.
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Affiliation(s)
- Isaac Duah Boateng
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; Certified Group, 199 W Rhapsody Dr, San Antonio, TX 78216, United States..
| | - Xiao-Ming Yang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Hengbo Yin
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Weimin Liu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
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2
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Boateng ID. Polyprenols in Ginkgo biloba; a review of their chemistry (synthesis of polyprenols and their derivatives), extraction, purification, and bioactivities. Food Chem 2023; 418:136006. [PMID: 36996648 DOI: 10.1016/j.foodchem.2023.136006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 02/28/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023]
Abstract
The Ginkgo biloba L. (GB) contains high bioactive compounds. To date, flavonoids and terpene trilactone have received the majority of attention in GB studies, and the GB has been utilized globally in functional food and pharmacological firms, with sales > $10 billion since 2017, while the other active components, for instance, polyprenols (a natural lipid) with various bioactivities have received less attention. Hence, this review focused on polyprenols' chemistry (synthesis of polyprenols and their derivatives) extraction, purification, and bioactivities from GB for the first time. The various extractions and purification methods (nano silica-based adsorbent, bulk ionic liquid membrane, etc.) were delved into, and their advantages and limitations were discussed. Besides, numerous bioactivities of the extracted Ginkgo biloba polyprenols (GBP) were reviewed. The review showed that GB contains some polyprenols in acetic esters' form. Prenylacetic esters are free of adverse effects. Besides, the polyprenols from GB have numerous bioactivities such as anti-bacterial, anti-cancer, anti-viral activity, etc. The application of GBPs in the food, cosmetics, and drugs industries such as micelles, liposomes, and nano-emulsions was delved into. Finally, the toxicity of polyprenol was reviewed, and it was concluded that GBP was not carcinogenic, teratogenic, or mutagenic, giving a theoretical justification for using GBP as a raw material for functional foods. This article will aid researchers to better understand the need to explore GBP usage.
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Affiliation(s)
- Isaac Duah Boateng
- Food Science Program, Division of Food, Nutrition and Exercise Sciences, University of Missouri, 1406 E Rollins Street, Columbia, MO 65211, United States.
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3
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Kruk J, Szymańska R. Synthesis of natural polyprenols for the production of biological prenylquinones and tocochromanols. RSC Adv 2023; 13:23122-23129. [PMID: 37529360 PMCID: PMC10388336 DOI: 10.1039/d3ra02872k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 07/26/2023] [Indexed: 08/03/2023] Open
Abstract
We elaborate the chemical synthesis of polyprenols by chain lengthening, which is considerably less time-consuming than the other previously described methods. Our method eliminates critical steps requiring low temperature and toxic chemicals, which are difficult to perform in ordinary laboratories. The critical step of acetylene addition in liquid ammonia was replaced by a new approach, namely, the use of sodium acetylide in dimethoxyethane at room temperature, where the reaction is completed within one hour. This method is of general significance as it can also be applied to the synthesis of any other acetylides. Our method provides reasonable yields and can be scaled depending on the requirements. All the reactions were followed by high-performance liquid chromatography, allowing the formation of undesired isomers and other side-products to be controlled. The resulting polyprenols were further used in the synthesis of plastoquinones, although a variety of biological prenylquinones can be synthesized this way. Moreover, we found a new method for the direct formation of tocochromanols (plastochromanols, tocochromanols) from polyprenols and aromatic head groups.
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Affiliation(s)
- Jerzy Kruk
- Department of Plant Physiology and Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University Gronostajowa 7 30-387 Kraków Poland +48 126646361
| | - Renata Szymańska
- Faculty of Physics and Applied Computer Science, AGH University of Science and Technology Reymonta 19 30-059 Kraków Poland
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Nguyen MN, Chakraborty D, Rao SR, Onysk A, Radkiewicz M, Surmacz L, Swiezewska E, Soubeyrand E, Akhtar TA, Kraft TW, Sherry DM, Fliesler SJ, Pittler SJ. A Dhdds K42E knock-in RP59 mouse model shows inner retina pathology and defective synaptic transmission. Cell Death Dis 2023; 14:420. [PMID: 37443173 PMCID: PMC10345138 DOI: 10.1038/s41419-023-05936-4] [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: 09/11/2022] [Revised: 06/07/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023]
Abstract
Retinitis pigmentosa (RP) defines a group of hereditary progressive rod-cone degenerations that exhibit a common phenotype caused by variants in over 70 genes. While most variants in the dehydrodolichyl diphosphate synthase (DHDDS) gene result in syndromic abnormalities, some variants cause non-syndromic RP (RP59). DHDDS encodes one subunit of the enzyme cis-prenyltransferase (CPT), which is required for the synthesis of dolichol (Dol), that is a necessary protein glycosylation cofactor. We previously reported the creation and initial characterization of a knock-in (KI) mouse model harboring the most prevalent RP59-associated DHDDS variant (K42E) to understand how defects in DHDDS lead to retina-specific pathology. This model exhibited no profound retinal degeneration, nor protein N-glycosylation defects. Here, we report that the Dol isoprenylogue species in retina, liver, and brain of the K42E mouse model are statistically shorter than in the corresponding tissues of age-matched controls, as reported in blood and urine of RP59 patients. Retinal transcriptome analysis demonstrated elevation of many genes encoding proteins involved in synaptogenesis and synaptic function. Quantitative retinal cell layer thickness measurements demonstrated a significant reduction in the inner nuclear layer (INL) and total retinal thickness (TRT) beginning at postnatal (PN) ∼2 months, progressively increasing to PN 18-mo. Histological analysis revealed cell loss in the INL, outer plexiform layer (OPL) disruption, and ectopic localization of outer nuclear layer (ONL) nuclei into the OPL of K42E mutant retinas, relative to controls. Electroretinograms (ERGs) of mutant mice exhibited reduced b-wave amplitudes beginning at PN 1-mo, progressively declining through PN 18-mo, without appreciable a-wave attenuation, relative to controls. Our results suggest that the underlying cause of DHDDS K42E variant driven RP59 retinal pathology is defective synaptic transmission from outer to inner retina.
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Affiliation(s)
- Mai N Nguyen
- Department of Optometry and Vision Science, Vision Science Research Center, School of Optometry, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Dibyendu Chakraborty
- Department of Optometry and Vision Science, Vision Science Research Center, School of Optometry, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Sriganesh Ramachandra Rao
- Research Service, VA Western New York Healthcare System, Buffalo, NY, 14215, USA
- Departments of Ophthalmology and Biochemistry and Neuroscience Graduate Program, Jacobs School of Medicine and Biomedical Sciences, The State University of New York, University at Buffalo, Buffalo, NY, 14203, USA
| | - Agnieszka Onysk
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, 02106, Poland
| | - Mariusz Radkiewicz
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, 02106, Poland
| | - Liliana Surmacz
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, 02106, Poland
| | - Ewa Swiezewska
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, 02106, Poland
| | - Eric Soubeyrand
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario, N1G2W1, Canada
| | - Tariq A Akhtar
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario, N1G2W1, Canada
| | - Timothy W Kraft
- Department of Optometry and Vision Science, Vision Science Research Center, School of Optometry, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - David M Sherry
- Departments of Cell Biology, Neurosurgery, and Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Steven J Fliesler
- Research Service, VA Western New York Healthcare System, Buffalo, NY, 14215, USA
- Departments of Ophthalmology and Biochemistry and Neuroscience Graduate Program, Jacobs School of Medicine and Biomedical Sciences, The State University of New York, University at Buffalo, Buffalo, NY, 14203, USA
| | - Steven J Pittler
- Department of Optometry and Vision Science, Vision Science Research Center, School of Optometry, University of Alabama at Birmingham, Birmingham, AL, 35294, USA.
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Gladchuk AS, Krasnov KA, Keltsieva OA, Kalninia YK, Alexandrova ML, Ivanov NS, Muradymov MZ, Krasnov NV, Reynyuk VL, Sukhodolov NG, Podolskaya EP. A new approach for analysis of polyprenols by a combination of thin-film chemical deposition and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e9185. [PMID: 34460139 DOI: 10.1002/rcm.9185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/27/2021] [Accepted: 08/26/2021] [Indexed: 06/13/2023]
Abstract
RATIONALE The polyprenols are involved in some essential biosynthetic pathways and serve as ubiquitous components of cellular membranes, so their fingerprinting in natural samples is of great interest. Previous studies indicate that due to the high hydrophobicity of polyprenols their direct analysis by mass spectrometry with soft ionization techniques may be difficult and require preliminary off-line derivatization. Hence, a method for rapid and sensitive screening of polyprenols is required. METHODS A combination of thin-film chemical deposition and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOFMS) was used for analysis of the polyprenol profile of Abies sibirica L. extract. Polyprenol-based monolayers were formed at the interphase of aqueous barium acetate solution, supplemented with 2,5-dihydroxybenzoic acid, and an n-hexane solution of polyprenols directly on a MALDI target plate. RESULTS Peaks corresponding to [M - H + Ba]+ ions were observed in the MALDI-TOF mass spectra of polyprenols. A total of nine polyprenol homologues were identified with a polyprenol of 16 isoprene units dominating. The limit of detection was established at the level of 6 pg. Possible mechanisms of formation of [M - H + Ba]+ ions of polyprenols were discussed. CONCLUSIONS The proposed approach can be suitable for high-throughput screening of polyprenols in biological samples of different origin due to easy sample preparation and high sensitivity.
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Affiliation(s)
- Alexey S Gladchuk
- Golikov Research Center of Toxicology, St. Petersburg, 192019, Russia
- Institute of Chemistry, St. Petersburg State University, St. Petersburg, 198504, Russia
| | | | - Olga A Keltsieva
- Golikov Research Center of Toxicology, St. Petersburg, 192019, Russia
- Institute for Analytical Instrumentation, Russian Academy of Sciences, St. Petersburg, 198095, Russia
| | - Yana K Kalninia
- Peter the Great St. Petersburg Polytechnic University, St. Petersburg, 195251, Russia
| | | | - Nikita S Ivanov
- Institute of Chemistry, St. Petersburg State University, St. Petersburg, 198504, Russia
| | - Marat Z Muradymov
- Institute for Analytical Instrumentation, Russian Academy of Sciences, St. Petersburg, 198095, Russia
| | - Nikolai V Krasnov
- Institute for Analytical Instrumentation, Russian Academy of Sciences, St. Petersburg, 198095, Russia
| | | | - Nikolai G Sukhodolov
- Institute of Chemistry, St. Petersburg State University, St. Petersburg, 198504, Russia
| | - Ekaterina P Podolskaya
- Golikov Research Center of Toxicology, St. Petersburg, 192019, Russia
- Institute for Analytical Instrumentation, Russian Academy of Sciences, St. Petersburg, 198095, Russia
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Pronin AV, Narovlyansky AN, Sanin AV. New Approaches to the Prevention and Treatment of Viral Diseases. Arch Immunol Ther Exp (Warsz) 2021; 69:10. [PMID: 33811524 PMCID: PMC8019082 DOI: 10.1007/s00005-021-00613-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 03/23/2021] [Indexed: 11/01/2022]
Abstract
The review discusses a new approach to the prevention and treatment of viral infections based on the use of pine needles polyprenyl phosphate (PPP) and associated with the infringement of prenylation process-the attachment of farnesol or geranyl geraniol to the viral protein. Currently, prenylation has been detected in type 1 adenovirus, hepatitis C virus, several herpes viruses, influenza virus, HIV. However, this list is far from complete, given that prenylated proteins play an extremely important role in the activity of the virus. We assume that the interferon produced in response to PPP may suppress expression of the SREBP2 transcription factor. As a result, the mevalonic acid pathway is violated and, as a result, the formation of early polyprenols precursors (geraniol, geranyl geraniol, farnesol), which are necessary for the prenylation of viral proteins, is blocked and the formation of mature, virulent virus particles is broken. As a consequence, the maturation of viral particles is inhibited, and defective particles are formed. Polyprenol was extracted from greenery (pine, fir and spruce needles, mulberry leaves, etc.), purified by chromatography, phosphorylated and identified by HPLC and NMR. Obtained PPP was used as antiviral in some experimental models in vitro and in vivo. During numerous studies, it was found that PPP manifested versatile antiviral effects, both in vitro and in vivo. The maximum effect was observed with viruses in which the presence of prenylated proteins was established, namely influenza A virus, HIV-1, tick-borne encephalitis virus, hepatitis A and C viruses, herpes simplex viruses type 1 and 2, some coronavirus. The available data obtained both in the experimental conditions and during clinical trials allow us to regard PPPs as safe and effective medicine for prevention and treatment of viral diseases.
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Affiliation(s)
- Alexander V Pronin
- N.F. Gamaleya National Research Center of Epidemiology and Microbiology of the Ministry of Health of Russia, Gamaleya 18, Moscow, Russia, 123098.
| | - Alexander N Narovlyansky
- N.F. Gamaleya National Research Center of Epidemiology and Microbiology of the Ministry of Health of Russia, Gamaleya 18, Moscow, Russia, 123098
| | - Alexander V Sanin
- N.F. Gamaleya National Research Center of Epidemiology and Microbiology of the Ministry of Health of Russia, Gamaleya 18, Moscow, Russia, 123098
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Supercritical-CO 2 extraction, identification and quantification of polyprenol as a bioactive ingredient from Irish trees species. Sci Rep 2021; 11:7461. [PMID: 33811219 PMCID: PMC8018978 DOI: 10.1038/s41598-021-86393-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 03/10/2021] [Indexed: 12/13/2022] Open
Abstract
This study ascertained the accumulation of polyprenol from four Irish conifer species Picea sitchensis, Cedrus atlantica ‘Glauca’, Pinus sylvestris and Taxus baccata and one flowering tree Cotoneaster hybrida using supercritical fluid extraction with carbon dioxide (SFE-CO2) and solvent extraction. The effects of SFE-CO2 parameters such as temperature (ranged from 40 to 70 \documentclass[12pt]{minimal}
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\begin{document}$$^\circ{\rm C}$$\end{document}∘C), pressure (ranged from 100 to 350 bars) and dynamic time (from 70 min to 7 h) were analysed on the extraction efficiency of polyprenol. Qualitative and quantitative analysis of polyprenol was examined using high-performance liquid chromatography. Results showed that P. sylvestris accumulated the highest polyprenol yield of 14.00 ± \documentclass[12pt]{minimal}
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\begin{document}$$0.4$$\end{document}0.4mg g−1 DW when extracted with hexane:acetone (1:1 v/v). However, with SFE-CO2 conditions of 200 bars, 70 \documentclass[12pt]{minimal}
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\begin{document}$$^\circ{\rm C}$$\end{document}∘C, 7 h, with absolute ethanol as a cosolvent with a flow rate of 0.05 ml min−1, P. sitchensis accumulated the highest polyprenol yield of 6.35 ± \documentclass[12pt]{minimal}
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\begin{document}$$0.4$$\end{document}0.4 mg g−1DW. This study emphasised the potential application of SFE-CO2 in the extraction of polyprenol as an environmentally friendly method to be used in pharmaceutical and food industries.
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Hirao K, Ono R, Manabe Y, Masui S, Atomi H, Fukase K. Total Syntheses of C60- and C100-Dolichols. J Org Chem 2020; 85:11549-11559. [PMID: 32786646 DOI: 10.1021/acs.joc.0c01327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
C60- and C100-dolichols were synthesized. A Z-selective Wittig reaction was achieved with high selectivity in a microflow system to realize the scalable supply of the Z-isoprene unit. An isoprene chain was efficiently elongated by an SN2-type coupling between allyl sulfone and allyl chloride using t-BuOK. These key reactions enabled the efficient syntheses of dolichols. This study will pave the way for the functional studies of dolichols.
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Affiliation(s)
- Kohtaro Hirao
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Risako Ono
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Yoshiyuki Manabe
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.,Core for Medicine and Science Collaborative Research and Education, Project Research Center for Fundamental Sciences, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Seiji Masui
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Haruyuki Atomi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Koichi Fukase
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.,Core for Medicine and Science Collaborative Research and Education, Project Research Center for Fundamental Sciences, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
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Vanaga I, Gubernator J, Nakurte I, Kletnieks U, Muceniece R, Jansone B. Identification of Abies sibirica L. Polyprenols and Characterisation of Polyprenol-Containing Liposomes. Molecules 2020; 25:molecules25081801. [PMID: 32295310 PMCID: PMC7221546 DOI: 10.3390/molecules25081801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 04/07/2020] [Accepted: 04/08/2020] [Indexed: 01/26/2023] Open
Abstract
The needles of conifer trees are one of the richest sources of natural polyprenols. Polyprenol homologs from Abies sibirica L. lipophilic 80% purified extract were analyzed and quantified. In total, 10 peaks (Prenol-11 to Prenol-20) were observed in the ultra-high-performance liquid chromatography–diode array detector (UHPLC-DAD) chromatogram of Siberian fir with the most abundant compound being Prenol-15 (relative amount 37.23 + 0.56% of the total polyprenol yield). Abies sibirica L. polyprenol solubility and incorporation efficiency into liposomes were studied in various commercially available lecithin mixtures (Phosal IP40, Phosal 75SA, and Lipoid P45). The resulting multilamellar polyprenol liposomes were morphologically characterized by Light and Transmission Electron Microscopy, and the liposome size was discovered to be polymodal with the main peak at 1360 nm (90% of the volume). As polyprenols are fully soluble only in lipids, a liposomal formulation based upon co-solubilization and a modified ethanol injection method of polyprenols into the ethanol-phospholipid system was developed for the entrapment and delivery of polyprenols for potential commercial applications in food supplement and cosmetic industries.
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Affiliation(s)
- Ilona Vanaga
- Department of Pharmacology, Faculty of Medicine, University of Latvia, Jelgavas str. 3, LV-1004 Riga, Latvia; (R.M.); (B.J.)
- LTD “Silv EXPO”, Alberta str. 12-2, LV-1010 Riga, Latvia
- JSC “Biolat”, Rigas str. 111, LV-2169 Salaspils, Latvia
- Correspondence: ; Tel.: +371-29554716
| | - Jerzy Gubernator
- Faculty of Biotechnology, University of Wroclaw, Joliot Currie 14A, 51-383 Wrocław, Poland;
| | - Ilva Nakurte
- Institute for Environmental Solutions, „Lidlauks”, Priekulu parish, LV- 4101 Priekulu county, Latvia
- Department of Physical Chemistry, Faculty of Chemistry, University of Latvia, Jelgavas str. 1, LV-1004 Riga, Latvia
| | - Ugis Kletnieks
- LTD “Silv EXPO”, Alberta str. 12-2, LV-1010 Riga, Latvia
- JSC “Biolat”, Rigas str. 111, LV-2169 Salaspils, Latvia
| | - Ruta Muceniece
- Department of Pharmacology, Faculty of Medicine, University of Latvia, Jelgavas str. 3, LV-1004 Riga, Latvia; (R.M.); (B.J.)
| | - Baiba Jansone
- Department of Pharmacology, Faculty of Medicine, University of Latvia, Jelgavas str. 3, LV-1004 Riga, Latvia; (R.M.); (B.J.)
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Salvador-Castell M, Tourte M, Oger PM. In Search for the Membrane Regulators of Archaea. Int J Mol Sci 2019; 20:E4434. [PMID: 31505830 PMCID: PMC6770870 DOI: 10.3390/ijms20184434] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 09/04/2019] [Accepted: 09/06/2019] [Indexed: 11/23/2022] Open
Abstract
Membrane regulators such as sterols and hopanoids play a major role in the physiological and physicochemical adaptation of the different plasmic membranes in Eukarya and Bacteria. They are key to the functionalization and the spatialization of the membrane, and therefore indispensable for the cell cycle. No archaeon has been found to be able to synthesize sterols or hopanoids to date. They also lack homologs of the genes responsible for the synthesis of these membrane regulators. Due to their divergent membrane lipid composition, the question whether archaea require membrane regulators, and if so, what is their nature, remains open. In this review, we review evidence for the existence of membrane regulators in Archaea, and propose tentative location and biological functions. It is likely that no membrane regulator is shared by all archaea, but that they may use different polyterpenes, such as carotenoids, polyprenols, quinones and apolar polyisoprenoids, in response to specific stressors or physiological needs.
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Affiliation(s)
- Marta Salvador-Castell
- Université de Lyon, CNRS, UMR 5240, F-69621 Villeurbanne, France.
- Université de Lyon, INSA de Lyon, UMR 5240, F-69621 Villeurbanne, France.
| | - Maxime Tourte
- Université de Lyon, CNRS, UMR 5240, F-69621 Villeurbanne, France.
- Université de Lyon, INSA de Lyon, UMR 5240, F-69621 Villeurbanne, France.
| | - Philippe M Oger
- Université de Lyon, CNRS, UMR 5240, F-69621 Villeurbanne, France.
- Université de Lyon, INSA de Lyon, UMR 5240, F-69621 Villeurbanne, France.
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Khodanovich MY, Pishchelko AO, Glazacheva VY, Pan ES, Krutenkova EP, Trusov VB, Yarnykh VL. Plant polyprenols reduce demyelination and recover impaired oligodendrogenesis and neurogenesis in the cuprizone murine model of multiple sclerosis. Phytother Res 2019; 33:1363-1373. [PMID: 30864249 PMCID: PMC6594192 DOI: 10.1002/ptr.6327] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 01/11/2019] [Accepted: 02/09/2019] [Indexed: 11/07/2022]
Abstract
Recent studies showed hepatoprotective, neuroprotective, and immunomodulatory properties of polyprenols isolated from the green verdure of Picea abies (L.) Karst. This study aimed to investigate effects of polyprenols on oligodendrogenesis, neurogenesis, and myelin content in the cuprizone demyelination model. Demyelination was induced by 0.5% cuprizone in CD-1 mice during 10 weeks. Nine cuprizone-treated animals received daily injections of polyprenols intraperitoneally at a dose of 12-mg/kg body weight during Weeks 6-10. Nine control animals and other nine cuprizone-treated received sham oil injections. At Week 10, brain sections were stained for myelin basic protein, neuro-glial antigen-2, and doublecortin to evaluate demyelination, oligodendrogenesis, and neurogenesis. Cuprizone administration caused a decrease in myelin basic protein in the corpus callosum, cortex, hippocampus, and the caudate putamen compared with the controls. Oligodendrogenesis was increased, and neurogenesis in the subventricular zone and the dentate gyrus of the hippocampus was decreased in the cuprizone-treated group compared with the controls. Mice treated with cuprizone and polyprenols did not show significant demyelination and differences in oligodendrogenesis and neurogenesis as compared with the controls. Our results suggest that polyprenols can halt demyelination, restore impaired neurogenesis, and mitigate reactive overproduction of oligodendrocytes caused by cuprizone neurotoxicity.
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Affiliation(s)
| | | | | | - Edgar S. Pan
- Laboratory of NeurobiologyTomsk State UniversityTomskRussian Federation
| | | | - Vladimir B. Trusov
- Prenolica Limited (formerly Solagran Limited), Biotechnology CompanyMelbourneVictoriaAustralia
| | - Vasily L. Yarnykh
- Laboratory of NeurobiologyTomsk State UniversityTomskRussian Federation
- Department of RadiologyUniversity of WashingtonSeattleWAUSA
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Wang Y, Gu W. Study on supercritical fluid extraction of solanesol from industrial tobacco waste. J Supercrit Fluids 2018. [DOI: 10.1016/j.supflu.2018.05.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Muceniece R, Namniece J, Nakurte I, Jekabsons K, Riekstina U, Jansone B. Pharmacological research on natural substances in Latvia: Focus on lunasin, betulin, polyprenol and phlorizin. Pharmacol Res 2016; 113:760-770. [PMID: 27109319 DOI: 10.1016/j.phrs.2016.03.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 03/22/2016] [Accepted: 03/22/2016] [Indexed: 01/08/2023]
Abstract
In this concise review the current research in plant bioactive compound studies in Latvia is described. The paper summarizes recent studies on substances from edible plants (e.g., cereals and apples) or their synthetic analogues, such as peptide lunasin, as well as substances isolated from inedible plants (e.g., birch and conifer), such as pentacyclic triterpenes (e.g., betulin, betulinic acid, and lupeol) and polyprenols. Latvian researchers have been first to demonstrate the presence of lunasin in triticale and oats. Additionally, the impact of genotype on the levels of lunasin in cereals was shown. Pharmacological studies have revealed effects of lunasin and synthetic triterpenes on the central nervous system in rodents. We were first to show that synthetic lunasin causes a marked neuroleptic/cataleptic effect and that betulin antagonizes bicuculline-induced seizures (a GABA A receptor antagonist). Studies on the mechanisms of action showed that lunasin binds to dopamine D1 receptors and betulin binds to melanocortin and gamma-aminobutyric acid A receptors therefore we suggest that these receptors play an essential role in lunasin's and betulin's central effects. Recent studies on conifer polyprenols demonstrated the ability of polyprenols to prevent statin-induced muscle weakness in a rat model. Another study on plant compounds has demonstrated the anti-hyperglycemic activity of phlorizin-containing unripe apple pomace in healthy volunteers. In summary, research into plant-derived compounds in Latvia has been focused on fractionating, isolating and characterizing of lunasin, triterpenes, polyprenols and phlorizin using in vitro, and in vivo assays, and human observational studies.
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Affiliation(s)
- Ruta Muceniece
- Department of Pharmacy, Faculty of Medicine, University of Latvia, 19 Raina Blvd., Riga, LV1586, Latvia.
| | - Jana Namniece
- Department of Pharmacy, Faculty of Medicine, University of Latvia, 19 Raina Blvd., Riga, LV1586, Latvia
| | - Ilva Nakurte
- Department of Physical chemistry, Faculty of Chemistry, University of Latvia, 19 Raina Blvd., Riga, LV1586, Latvia
| | - Kaspars Jekabsons
- Department of Pharmacy, Faculty of Medicine, University of Latvia, 19 Raina Blvd., Riga, LV1586, Latvia
| | - Una Riekstina
- Department of Pharmacy, Faculty of Medicine, University of Latvia, 19 Raina Blvd., Riga, LV1586, Latvia
| | - Baiba Jansone
- Department of Pharmacology, Faculty of Medicine, University of Latvia, 19 Raina Blvd, Riga, LV1586, Latvia
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