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Lu Y, Feng S, Zhao Y, Wang Y, Diao M, Liang Y, Zhang T. Comparison of interactions between alpha-lactalbumin and three protopanaxadiol ginsenosides: Impacts on the structure and antitumor properties. Food Chem 2024; 439:138046. [PMID: 38029562 DOI: 10.1016/j.foodchem.2023.138046] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 11/16/2023] [Accepted: 11/18/2023] [Indexed: 12/01/2023]
Abstract
In this research, interactions between α-lactalbumin (ALA) and three protopanaxadiol ginsenosides [20(S)-Rg3, 20(S)-Rh2, and 20(S)-PPD] were compared to explore the effects of similar ligand on structure and cytotoxicity of ALA. Multi-spectroscopy revealed the binding between ALA and ginsenoside changed the conformation of ALA, which related to different structures and solubility of ligands. Scanning electron microscope illustrated that all ALA-ginsenoside complexes exhibited denser structures via hydrophobic interactions. Additionally, the cytotoxic experiments confirmed that the cytotoxicity of ginsenoside was enhanced after binding with ALA. Molecular docking showed all three ginsenosides were bound to the sulcus depression region of ALA via hydrogen bonding and hydrophobic interaction. Furthermore, molecular dynamics simulation elucidated the precise binding sites and pertinent system properties. Among all three composite systems, 20(S)-Rh2 had optimal binding affinity. These findings enhanced understanding of the synergistic utilization of ALA and ginsenosides as functional ingredients in food, medicine, and cosmetics.
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Affiliation(s)
- Yitong Lu
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| | - Sitong Feng
- College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Yueying Zhao
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| | - Yingyi Wang
- College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Mengxue Diao
- College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Yuan Liang
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| | - Tiehua Zhang
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
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García-Morales S, Corzo-Jiménez IJ, Silva-Córdova NF, Soto-Cordero AM, Rodríguez-Mejía DI, Pardo-Núñez J, León-Morales JM. Comparative study of steroidal sapogenins content in leaves of five Agave species. J Sci Food Agric 2022; 102:5653-5659. [PMID: 35368099 DOI: 10.1002/jsfa.11912] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 03/28/2022] [Accepted: 04/04/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Agaves are mainly used to produce alcoholic beverages such as tequila, mezcal and bacanora. However, the leaves constitute more than 50% of the plant and are not used in the production process, so they are considered waste. This plant material can be used as a source of bioactive compounds such as terpenes, flavonoids and saponins. Therefore, the objective of this study was to characterize the aglycone type of saponins and to quantify three steroidal sapogenins in leaves of five Agave species collected in different regions of Guerrero and Oaxaca, Mexico. RESULTS Analysis by gas chromatography-flame ionization detection of the hydrolyzed methanolic extracts showed that diosgenin and tigogenin were the most abundant sapogenins identified in the five Agave species. Differences in the content of these sapogenins were found in the same species collected in different localities. The leaves of Agave americana var. oaxacensis L. (Oaxaca) had the highest diosgenin-derived saponin content, while the leaves of A. angustifolia Haw. (Guerrero) had the highest tigogenin-derived saponin content. Only in A. cupreata was sarsasapogenin identified, all three sapogenins occurring in the leaves of this species. For the first time, information is provided on the aglycones of the saponins produced in A. potatorum Zucc. and A. karwinskii Zucc. CONCLUSION This study made it possible to compare the content of diosgenin and tigogenin-derived saponins in leaves of Agave species from Guerrero and Oaxaca. This information will be useful for better utilization of this plant material and add value to the process of mezcal elaboration. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Soledad García-Morales
- Department of Plant Biotechnology, CONACYT - Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, AC, Jalisco, Mexico
| | - Ilenia Janeth Corzo-Jiménez
- Department of Plant Biotechnology, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, AC, Jalisco, Mexico
| | | | | | | | - Joaliné Pardo-Núñez
- Laboratory of Technological Prospecting for the Innovative Development of Food and Nutrition, CONACYT - Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, AC, Jalisco, Mexico
| | - Janet María León-Morales
- Department of Plant Biotechnology, CONACYT - Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, AC, Jalisco, Mexico
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Lee JE, Song BK, Kim JH, Siddiqi MZ, Im WT. Production of Prosaikogenin F, Prosaikogenin G, Saikogenin F and Saikogenin G by the Recombinant Enzymatic Hydrolysis of Saikosaponin and their Anti-Cancer Effect. Molecules 2022; 27:molecules27103255. [PMID: 35630731 PMCID: PMC9145717 DOI: 10.3390/molecules27103255] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/12/2022] [Accepted: 05/17/2022] [Indexed: 11/16/2022] Open
Abstract
The saponins of Bupleurum falcatum L., saikosaponins, are the major components responsible for its pharmacological and biological activities. However, the anti-cancer effects of prosaikogenin and saikogenin, which are glycoside hydrolyzed saikosaponins, are still unknown due to its rarity in plants. In this study, we applied two recombinant glycoside hydrolases that exhibit glycoside cleavage activity with saikosaponins. The two enzymes, BglPm and BglLk, were cloned from Paenibacillus mucilaginosus and Lactobacillus koreensis, and exhibited good activity between 30-37 °C and pH 6.5-7.0. Saikosaponin A and D were purified and obtained from the crude B. falcatum L. extract using preparative high performance liquid chromatography technique. Saikosaponin A and D were converted into saikogenin F via prosaikogenin F, and saikogenin G via prosaikogenin G using enzyme transformation with high β-glycosidase activity. The two saikogenin and two prosaikogenin compounds were purified using a silica column to obtain 78.1, 62.4, 8.3, and 7.5 mg of prosaikogenin F, prosaikogenin G, saikogenin F, and saikogenin G, respectively, each with 98% purity. The anti-cancer effect of the six highly purified saikosaponins was investigated in the human colon cancer cell line HCT 116. The results suggested that saikosaponins and prosaikogenins markedly inhibit the growth of the cancer cell line. Thus, this enzymatic technology could significantly improve the production of saponin metabolites of B. falcatum L.
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Affiliation(s)
- Ji-Eun Lee
- Department of Biotechnology, Major in Applied Biotechnology, Hankyong National University, 327 Chungang-no, Anseong-si 17579, Gyeonggi-do, Korea; (J.-E.L.); (M.-Z.S.)
| | - Bong-Kyu Song
- AceEMzyme Co., Ltd., Academic Industry Cooperation, 327 Chungang-no, Anseong-si 17579, Gyeonggi-do, Korea; (B.-K.S.); (J.-H.K.)
| | - Ju-Hyeon Kim
- AceEMzyme Co., Ltd., Academic Industry Cooperation, 327 Chungang-no, Anseong-si 17579, Gyeonggi-do, Korea; (B.-K.S.); (J.-H.K.)
| | - Muhammad-Zubair Siddiqi
- Department of Biotechnology, Major in Applied Biotechnology, Hankyong National University, 327 Chungang-no, Anseong-si 17579, Gyeonggi-do, Korea; (J.-E.L.); (M.-Z.S.)
| | - Wan-Taek Im
- Department of Biotechnology, Major in Applied Biotechnology, Hankyong National University, 327 Chungang-no, Anseong-si 17579, Gyeonggi-do, Korea; (J.-E.L.); (M.-Z.S.)
- AceEMzyme Co., Ltd., Academic Industry Cooperation, 327 Chungang-no, Anseong-si 17579, Gyeonggi-do, Korea; (B.-K.S.); (J.-H.K.)
- HK Ginseng Research Center, 327 Chungang-no, Anseong-si 17579, Gyeonggi-do, Korea
- Correspondence: ; Tel.: +82-31-6705335; Fax: +82-31-6705339
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Dąbrowska-Balcerzak K, Nartowska J, Wawer I, Siudem P, Paradowska K. Spirostanol Sapogenins and Saponins from Convallaria majalis L. Structural Characterization by 2D NMR, Theoretical GIAO DFT Calculations and Molecular Modeling. Molecules 2021; 26:2999. [PMID: 34070073 PMCID: PMC8158116 DOI: 10.3390/molecules26102999] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/22/2021] [Accepted: 05/10/2021] [Indexed: 11/17/2022] Open
Abstract
Two new spirostanol sapogenins (5β-spirost-25(27)-en-1β,2β,3β,5β-tetrol 3 and its 25,27-dihydro derivative, (25S)-spirostan-1β,2β,3β,5β-tetrol 4) and four new saponins were isolated from the roots and rhizomes of Convallaria majalis L. together with known sapogenins (isolated from Liliaceae): 5β-spirost-25(27)-en-1β,3β-diol 1, (25S)-spirostan-1β,3β-diol 2, 5β-spirost-25(27)-en-1β,3β,4β,5β-tetrol 5, (25S)-spirostan-1β,3β,4β,5β-tetrol 6, 5β-spirost-25(27)-en-1β,2β,3β,4β,5β-pentol 7 and (25S)-spirostan-1β,2β,3β,4β,5β-pentol 8. New steroidal saponins were found to be pentahydroxy 5-O-glycosides; 5β-spirost-25(27)-en-1β,2β,3β,4β,5β-pentol 5-O-β-galactopyranoside 9, 5β-spirost-25(27)-en-1β,2β,3β,4β,5β-pentol 5-O-β-arabinonoside 11, 5β-(25S)-spirostan-1β,2β,3β,4β,5β-pentol 5-O-galactoside 10 and 5β-(25S)-spirostan-1β,2β,3β,4β,5β-pentol 5-O-arabinoside 12 were isolated for the first time. The structures of those compounds were determined by NMR spectroscopy, including 2D COSY, HMBC, HSQC, NOESY, ROESY experiments, theoretical calculations of shielding constants by GIAO DFT, and mass spectrometry (FAB/LSI HR MS). An attempt was made to test biological activity, particularly as potential chemotherapeutic agents, using in silico methods. A set of 12 compounds was docked to the PDB structures of HER2 receptor and tubulin. The results indicated that diols have a higher affinity to the analyzed targets than tetrols and pentols. Two compounds (25S)-spirosten-1β,3β-diol 1 and 5β-spirost-25(27)-en-1β,2β,3β,4β,5β-pentol 5-O-galactoside 9 were selected for further evaluation of biological activity.
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Affiliation(s)
- Karolina Dąbrowska-Balcerzak
- Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland; (K.D.-B.); (I.W.); (K.P.)
| | - Jadwiga Nartowska
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland;
| | - Iwona Wawer
- Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland; (K.D.-B.); (I.W.); (K.P.)
| | - Paweł Siudem
- Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland; (K.D.-B.); (I.W.); (K.P.)
| | - Katarzyna Paradowska
- Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland; (K.D.-B.); (I.W.); (K.P.)
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Kim SA, Jeong EB, Oh DK. Complete Bioconversion of Protopanaxadiol-Type Ginsenosides to Compound K by Extracellular Enzymes from the Isolated Strain Aspergillus tubingensis. J Agric Food Chem 2021; 69:315-324. [PMID: 33372793 DOI: 10.1021/acs.jafc.0c07424] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A compound K-producing fungus was isolated from meju (fermented soybean brick) and identified as the generally recognized as safe (GRAS) strain Aspergillus tubingensis. The extracellular enzymes obtained after the cultivation of 6 days in the medium with 20 g/L citrus pectin as an inducer showed the highest compound K-producing activity among the inducers tested. Under the optimized conditions of 0.05 mM MgSO4, 55 °C, pH 4.0, 13.4 mM protopanaxadiol (PPD)-type ginsenosides, and 11 mg/mL enzymes, the extracellular enzymes from A. tubingensis completely converted PPD-type ginsenosides in the ginseng extract to 13.4 mM (8.35 mg/mL) compound K after 20 h, with the highest concentration and productivity among the results reported so far. As far as we know, this is the first GRAS enzyme to completely convert all PPD-type ginsenosides to compound K.
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Affiliation(s)
- Se-A Kim
- Department of Bioscience and Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Eun-Bi Jeong
- Department of Bioscience and Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Deok-Kun Oh
- Department of Bioscience and Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
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Abstract
BACKGROUND Saponins are secondary metabolites from plants added to shampoos and beverages to make them foam, and the sapogenins released from them upon acid hydrolysis are commonly used as starting materials for steroidal drugs. However, current methods embed the saponin in a thick "gum" material consisting of multiple impurities. This gum limits access to the saponin, reducing the efficiency of hydrolysis and requiring large amounts of heat, organic solvents and effort to recover the sapogenin. For centuries, herbalists have been making tinctures by soaking plant materials at room temperature, in mixtures of alcohol and water. Many herbal tinctures contain saponins floating freely in solution, gum free. The saponin from sarsaparilla (Smilax spp), sarsasaponin, yields the sapogenin, sarsasapogenin, upon acid hydrolysis. The retail price of sarsasapogenin is very high but would be lower if the "gum problem" could be avoided. MATERIALS AND METHODS We incubated sarsaparilla tincture under different conditions of temperature, acidity and duration then used quantitative nuclear magnetic resonance (qNMR) to measure the amount of sarsasapogenin produced by hydrolysis as well as the amount of its epimer, smilagenin. RESULTS AND DISCUSSION Most, if not all the sarsasaponin in sarsaparilla root powder is extracted into a solution of 45% ethanol (55% water) at room temperature and stays suspended without formation of any particles (gum). Acid hydrolysis of the saponin in this solution is very efficient, approaching 100%. The sarsasapogenin released by hydrolysis and the smilagenin produced by its epimerisation, migrate into the chloroform phase. CONCLUSION Sarsaparilla saponin diffuses into and disperses in a solution of alcohol:water (45:55) at room temperature. Hydrolysis of saponins in tincture provides a simple, inexpensive and environmentally friendly alternative.
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Affiliation(s)
- Jamie Love
- Synapses, Millbrae Cottage, Mill of Fyall, Alyth, Scotland, United Kingdom
- * E-mail:
| | - Casey R. Simons
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah, United States of America
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Ruan J, Sun F, Zhang Y, Zheng D, Xiang G, Zhao W, Zhang Y, Wang T. New 20(S)-protopanaxadiol type saponins from the leaves of Panax notoginseng and their potential anti-inflammatory activities. Steroids 2020; 162:108696. [PMID: 32649999 DOI: 10.1016/j.steroids.2020.108696] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/24/2020] [Accepted: 06/30/2020] [Indexed: 01/21/2023]
Abstract
Through the combination of various chromatographies, 11 new 20(S)-protopanaxadiol (PPD) type saponins, named as notoginsenosides NL-E1 - NL-E4 (1-4), NL-F1 (5), NL-F2 (6), NL-G1 (7), NL-G2 (8), NL-H1 - NL-H3 (9-11) were obtained from the leaves of Panax notoginseng. Their structures were ascertained based on the extensive spectroscopic methods and chemical reactions. Meanwhile, the 20(S)-PPD type saponins with aglycone, (20S,24ζ)-3β,12β,20,24,25-pentahydroxy dammarane, was only found from the leaves of P. notoginseng. The characteristic could be used to distinguish the extracts of P. notoginseng leaves from its other medicinal parts such as roots, rhizomes, flowers or seeds. Furthermore, the nitric oxide (NO) inhibitory activities of all compounds were examined in lipopolysaccharide (LPS)-stimulated RAW264.7 cells. As a result, compounds 2-7, 10 could exert NO inhibitory activity at 25 μM without cytotoxicity. Moreover, the inhibitory activities of them were in dose-dependent manner at 1, 10, and 25 μM. Especially, notoginsenoside NL-F2 (6) still possessed strong biological activity at 1 μM.
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Affiliation(s)
- Jingya Ruan
- Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, 301617 Tianjin, China
| | - Fan Sun
- Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, 301617 Tianjin, China
| | - Ying Zhang
- Institute of TCM, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, 301617 Tianjin, China
| | - Dandan Zheng
- Institute of TCM, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, 301617 Tianjin, China
| | - Guilin Xiang
- Wenshan Miaoxiang Sanqi Limited Company, South Kaihua Road, 663000 Wenshan City, Yunnan Province, China
| | - Wei Zhao
- Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, 301617 Tianjin, China
| | - Yi Zhang
- Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, 301617 Tianjin, China; Institute of TCM, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, 301617 Tianjin, China.
| | - Tao Wang
- Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, 301617 Tianjin, China; Institute of TCM, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Jinghai District, 301617 Tianjin, China.
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Zhang H, Xu J, Wang M, Xia X, Dai R, Zhao Y. Steroidal saponins and sapogenins from fenugreek and their inhibitory activity against α-glucosidase. Steroids 2020; 161:108690. [PMID: 32598954 DOI: 10.1016/j.steroids.2020.108690] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 06/19/2020] [Accepted: 06/22/2020] [Indexed: 02/02/2023]
Abstract
The seed of Trigonella foenum-graecum L. (fenugreek) has been reported to be rich in saponins, especially the dioscin or diosgenin, which are natural anti-diabetic agents with relatively low toxicity. Thus, the present study was to purify the saponins and sapogenins from fenugreek and to evaluate their α-glucosidase inhibitory activity in vitro. As a result, 33 steroidal saponins and sapogenins were isolated, including six undescribed ones and 27 previously known molecules. Among them, compounds 10, 12, 17, 22 and 29 were five 25R and 25S isomer mixtures of spirostanol saponins or sapogenins. The structures of compound 1-6 were established by 1D and 2D NMR spectroscopic analyses, high-resolution mass spectrometry, and chemical evidence. Compared to the positive control, sapogenins 26, 27, 14 and saponins 18 and 23 considerably inhibited α-glucosidase at IC50 values of 15.16, 8.98, 7.26, 5.49 and 14.01 μM, respectively. These results support the therapeutic potential of fenugreek in the treatment of diabetes with saponins and sapogenins as the active constituents.
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Affiliation(s)
- Huixing Zhang
- Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jing Xu
- Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Meizhe Wang
- Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xiaoyan Xia
- Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Rongke Dai
- Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yuqing Zhao
- Shenyang Pharmaceutical University, Shenyang 110016, China; Key Laboratory of Structure-based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China.
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Song J, Cui ZY, Lian LH, Han X, Hou LS, Wang G, Gao L, Zhu Y, Jiang YC, Dou JY, Hu ZH, Zhao YQ, Nan JX, Wu YL. 20 S-Protopanaxatriol Ameliorates Hepatic Fibrosis, Potentially Involving FXR-Mediated Inflammatory Signaling Cascades. J Agric Food Chem 2020; 68:8195-8204. [PMID: 32662640 DOI: 10.1021/acs.jafc.0c01978] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Ginseng has been used as a functional food and tonic for enhancing immune power. Here, the potential protective effect of 20S-protopanaxatriol (M4), the metabolite of protopanaxatriol, against hepatic fibrosis is investigated, which could provide nutritional interventions for disease treatment. M4 could inhibit extracellular matrix (ECM) deposition and reduce the levels of proinflammatory cytokines such as caspase 1, interleukin 1 β (IL-1β), interleukin 1 receptor type 1 (IL1R1), and interleukin 6 (IL-6). M4 also significantly increased the expression of farnesoid X receptor (FXR), suppressed the purinergic ligand-gated ion channel 7 receptor (P2X7r) signaling pathway, and works as an FXR agonist, GW4064. In thioacetamide (TAA)-induced mice, M4 could attenuate the histopathological changes and significantly regulate the expression levels of FXR and P2X7r. M4 ameliorated TAA-induced hepatic fibrosis due to the reduction of P2X7r secretion, inhibition of hepatic stellate cell (HSCs) activation, and inflammation, which were all associated with FXR activation. Hence, M4 might be useful a nutritional preventive approach in antihepatic fibrosis and antihepatic inflammation.
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Affiliation(s)
- Jian Song
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
| | - Zhen-Yu Cui
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
| | - Li-Hua Lian
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
| | - Xin Han
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
| | - Li-Shuang Hou
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
| | - Ge Wang
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
| | - Lu Gao
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
| | - Yue Zhu
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
| | - Yu-Chen Jiang
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
| | - Jia-Yi Dou
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
| | - Zhong-He Hu
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
| | - Yu-Qing Zhao
- Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Ji-Xing Nan
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
- Clinical Research Center, Affiliated Hospital of Yanbian University, Yanji, Jilin 133002, China
| | - Yan-Ling Wu
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
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Lu YH, Xie Y, Hu P, Sun ZL, Li ZX, Huang CG. Stereospecific synthesis and rearrangement of 22S-23-acetylsapogenins. Steroids 2020; 160:108655. [PMID: 32439406 DOI: 10.1016/j.steroids.2020.108655] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/30/2020] [Accepted: 05/14/2020] [Indexed: 11/21/2022]
Abstract
The BF3·Et2O-catalysed acetolysis of steroid sapogenins diosgenin, sarsasapogenin and tigogenin in dichloromethane as the solvent instead of acetic anhydride afforded (20S)- and (20R)-22,26-epoxycholestanes (compounds 1 and 2). 22S-23-Acetylsapogenins (compounds 4) were synthesized stereospecifically from 20R-22,26-epoxycholestanes (compounds 2) in good yield. The rearrangement of 22S-23-acetylsapogenins (compounds 4) afforded novel disubstituted dihydropyran furostanol frameworks. Exhaustive NMR characterization of the obtained compounds is provided. Additionally, the structures of the critical compounds (6a and 7a) were unequivocallyconfirmed by single crystal X-ray diffraction studies.
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Affiliation(s)
- Yi-Hong Lu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Yang Xie
- Department of Chemistry, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310027, China
| | - Pei Hu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China
| | - Zhao-Lin Sun
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China
| | - Zhi-Xiong Li
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China.
| | - Cheng-Gang Huang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
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11
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Abstract
In the plant kingdom, steroidal lactones occur as glycosides, compounds consisting of a sugar moiety linked to a steroid aglycone. Steroidal lactones consist of five fused rings, with a total of 22 carbon atoms. Numerous methods for the preparation of steroidal lactones take advantage of the fact that steroid spirostanes may be degraded from six- to a five-rings structure. One of the most striking features common to reactions of steroid sapogenins is the C22-lactone formation. In the review, different methods for the preparation of steroidal lactones are presented with consideration of the structure of starting material. In addition, examples of lactones used in the synthesis of biologically active compounds and their analogues are described.
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Affiliation(s)
- Izabella Jastrzebska
- Faculty of Chemistry, University of Białystok, ul. Ciołkowskiego 1K, 15-245, Białystok, Poland.
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12
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Wang M, Li H, Liu W, Cao H, Hu X, Gao X, Xu F, Li Z, Hua H, Li D. Dammarane-type leads panaxadiol and protopanaxadiol for drug discovery: Biological activity and structural modification. Eur J Med Chem 2020; 189:112087. [PMID: 32007667 DOI: 10.1016/j.ejmech.2020.112087] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 12/14/2019] [Accepted: 01/20/2020] [Indexed: 12/13/2022]
Abstract
Based on the definite therapeutic benefits, such as neuroprotective, cardioprotective, anticancer, anti-diabetic and so on, the Panax genus which contains many valuable plants, including ginseng (Panax ginseng C.A. Meyer), notoginseng (Panax notoginseng) and American ginseng (Panax quinquefolius L.), attracts research focus. Actually, the biological and pharmacological effects of the Panax genus are mainly attributed to the abundant ginsenosides. However, the low membrane permeability and the gastrointestinal tract influence seriously limit the absorption and bioavailability of ginsenosides. The acid or base hydrolysates of ginsenosides, 20 (R,S)-panaxadiol and 20 (R,S)-protopanaxadiol showed improved bioavailability and diverse pharmacological activities. Moreover, relative stable skeletons and active hydroxyl group at C-3 position and other reactive sites are suitable for structural modification to improve biological activities. In this review, the pharmacological activities of panaxadiol, protopanaxadiol and their structurally modified derivatives are comprehensively summarized.
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Affiliation(s)
- Mingying Wang
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, And School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Haonan Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, And School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Weiwei Liu
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Hao Cao
- School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Xu Hu
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, And School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Xiang Gao
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, And School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Fanxing Xu
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Zhanlin Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, And School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Huiming Hua
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, And School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Dahong Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, And School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China.
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13
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Navarro Del Hierro J, Piazzini V, Reglero G, Martin D, Bergonzi MC. In Vitro Permeability of Saponins and Sapogenins from Seed Extracts by the Parallel Artificial Membrane Permeability Assay: Effect of in Vitro Gastrointestinal Digestion. J Agric Food Chem 2020; 68:1297-1305. [PMID: 31934761 DOI: 10.1021/acs.jafc.9b07182] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The permeability of saponins and sapogenins from fenugreek and quinoa extracts, as well as dioscin and diosgenin, was evaluated by the parallel artificial membrane permeability assay (PAMPA). The effect of the digestion process on permeability was determined, with previous development of a gastrointestinal process coupled to PAMPA. Saponins from both seeds displayed a moderate-to-poor permeability (>1 × 10-6 cm/s), although the digestion enhanced their permeability values in the order of 10-5 cm/s (p < 0.001). Sapogenins exhibited a similar permeability to that of saponins, although the digestion enhanced the permeability of sapogenins from quinoa (1.14 ± 0.47 × 10-5 cm/s) but not from fenugreek (2.33 ± 0.99 × 10-6 cm/s). An overall positive impact of coexisting lipids on the permeability was evidenced. PAMPA is shown as a useful, rapid, and easy tool for assessing the permeability of bioactive compounds from complex matrices, with the previous gastrointestinal process being a relevant step.
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Affiliation(s)
- Joaquin Navarro Del Hierro
- Departamento de Producción y Caracterización de Nuevos Alimentos , Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM) , 28049 Madrid , Spain
- Sección Departamental de Ciencias de la Alimentación, Facultad de Ciencias , Universidad Autónoma de Madrid , 28049 Madrid , Spain
| | - Vieri Piazzini
- Dipartimento di Chimica "Ugo Schiff" , Università degli Studi di Firenze , 50019 Florence , Italy
| | - Guillermo Reglero
- Departamento de Producción y Caracterización de Nuevos Alimentos , Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM) , 28049 Madrid , Spain
- Sección Departamental de Ciencias de la Alimentación, Facultad de Ciencias , Universidad Autónoma de Madrid , 28049 Madrid , Spain
- Imdea-Food Institute , CEI UAM + CSIC , 28049 Madrid , Spain
| | - Diana Martin
- Departamento de Producción y Caracterización de Nuevos Alimentos , Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM) , 28049 Madrid , Spain
- Sección Departamental de Ciencias de la Alimentación, Facultad de Ciencias , Universidad Autónoma de Madrid , 28049 Madrid , Spain
| | - Maria Camilla Bergonzi
- Dipartimento di Chimica "Ugo Schiff" , Università degli Studi di Firenze , 50019 Florence , Italy
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14
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Guo W, Li Z, Yuan M, Chen G, Li Q, Xu H, Yang X. Molecular Insight into Stereoselective ADME Characteristics of C20-24 Epimeric Epoxides of Protopanaxadiol by Docking Analysis. Biomolecules 2020; 10:E112. [PMID: 31936432 PMCID: PMC7022797 DOI: 10.3390/biom10010112] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 12/30/2019] [Accepted: 01/01/2020] [Indexed: 12/28/2022] Open
Abstract
Chirality is a common phenomenon, and it is meaningful to explore interactions between stereoselective bio-macromolecules and chiral small molecules with preclinical and clinical significance. Protopanaxadiol-type ginsenosides are main effective ingredients in ginseng and are prone to biotransformation into a pair of ocotillol C20-24 epoxide epimers, namely, (20S,24S)-epoxy-dammarane-3,12,25-triol (24S-PDQ) and (20S,24R)-epoxy dammarane-3,12,25-triol (24R-PDQ) that display stereoselective fate in vivo. However, possible molecular mechanisms involved are still unclear. The present study aimed to investigate stereoselective ADME (absorption, distribution, metabolism and excretion) characteristics of PDQ epimers based on molecular docking analysis of their interaction with some vital proteins responsible for drug disposal. Homology modeling was performed to obtain 3D-structure of the human isoenzyme UGT1A8, while calculation of docking score and binding free energy and ligand-protein interaction pattern analysis were achieved by using the Schrödinger package. Stereoselective interaction was found for both UGT1A8 and CYP3A4, demonstrating that 24S-PDQ was more susceptible to glucuronidation, whereas 24R-PDQ was more prone to oxidation catalyzed by CYP3A4. However, both epimers displayed similarly strong interaction with P-gp, a protein with energy-dependent drug-pump function, suggesting an effect of the dammarane skeleton but not C-24 stereo-configuration. These findings provide an insight into stereo-selectivity of ginsenosides, as well as a support the rational development of ginseng products.
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Affiliation(s)
- Wenna Guo
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264000, China; (W.G.); (Z.L.); (M.Y.); (Q.L.)
| | - Zhiyong Li
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264000, China; (W.G.); (Z.L.); (M.Y.); (Q.L.)
| | - Meng Yuan
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264000, China; (W.G.); (Z.L.); (M.Y.); (Q.L.)
| | - Geng Chen
- School of Chemistry and Chemical Engineering, Yantai University, Yantai 264000, China;
| | - Qiao Li
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264000, China; (W.G.); (Z.L.); (M.Y.); (Q.L.)
| | - Hui Xu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264000, China; (W.G.); (Z.L.); (M.Y.); (Q.L.)
| | - Xin Yang
- School of Chemistry and Chemical Engineering, Yantai University, Yantai 264000, China;
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15
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Zhou Y, Chen S, Qiao J, Cui Y, Yuan C, He L, Ouyang J. Study of the noncovalent interactions of ginsenosides and amyloid-β-peptide by CSI-MS and molecular docking. J Mass Spectrom 2020; 55:e4463. [PMID: 31671229 DOI: 10.1002/jms.4463] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 10/07/2019] [Accepted: 10/22/2019] [Indexed: 06/10/2023]
Abstract
Noncovalent interactions between drugs and proteins play significant roles for drug metabolisms and drug discoveries. Mass spectrometry has been a commonly used method for studying noncovalent interactions. However, the harsh ionization process in electrospray ionization mass spectrometry (ESI-MS) is not conducive to the preservation of noncovalent and unstable biomolecular complexes compared with the cold spray ionization mass spectrometry (CSI-MS). A cold spray ionization providing a stable solvation-ionization at low temperature is milder than ESI, which was more suitable for studying noncovalent drug-protein complexes with exact stoichiometries. In this paper, we apply CSI-MS to explore the interactions of ginsenosides toward amyloid-β-peptide (Aβ) and clarify the therapeutic effect of ginsenosides on Alzheimer's disease (AD) at the molecular level for the first time. The interactions of ginsenosides with Aβ were performed by CSI-MS and ESI-MS, respectively. The ginsenosides Rg1 bounded to Aβ at the stoichiometries of 1:1 to 5:1 could be characterized by CSI-MS, while dehydration products are more readily available by ESI-MS. The binding force depends on the number of glycosyls and the type of ginsenosides. The relative binding affinities were sorted in order as follows: Rg1 ≈ Re > Rd ≈ Rg2 > Rh2, protopanaxatriol by competition experiments, which were supported by molecular docking experiment. CSI-MS is expected to be a more appropriate approach to determine the weak but specific interactions of proteins with other natural products especially polyhydroxy compounds.
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Affiliation(s)
- Yanan Zhou
- National Institutes for Food and Drug Control, Beijing, 102629, China
| | - Su Chen
- National Institutes for Food and Drug Control, Beijing, 102629, China
| | - Jinping Qiao
- College of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Yanyun Cui
- College of Chemistry, Beijing Normal University, Beijing, 100875, China
- School of Science, Beijing Technology and Business University, Beijing, 100048, China
| | - Chang Yuan
- College of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Lan He
- National Institutes for Food and Drug Control, Beijing, 102629, China
| | - Jin Ouyang
- College of Chemistry, Beijing Normal University, Beijing, 100875, China
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16
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Zhu C, Zhang M, Tang Q, Yang Q, Li J, He X, Ye Y. Structure and Activity of the Camellia oleifera Sapogenin Derivatives on Growth and Biofilm Inhibition of Staphylococcus aureus and Escherichia coli. J Agric Food Chem 2019; 67:14143-14151. [PMID: 31469956 DOI: 10.1021/acs.jafc.9b03577] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Sapogenin is the main block of Camellia oleifera saponin, which was purified and structurally modified by the C28 acylation reaction to synthesize 19 new derivatives. The growth and biofilm inhibition of Staphylococcus aureus and Escherichia coli was measured to evaluate their antibacterial effects. A three-dimensional quantitative structure-activity relationship (3D-QSAR) assay indicated that the antibacterial activities were significantly enhanced after sapogenin was modified with an aromatic ring or heterocyclic ring and electron-withdrawing substituents at the meta or para position. Among them, the derivative of sapogenin with a 2-mercapto-4-methyl-5-thiazolyl acetyl group obviously destroyed bacterial biofilm and made bacteria lysis. 3D-QSAR provides practical information for the structural design of sapogenin derivatives with strong antibacterial activity, and the C. oleifera sapogenin derivative 28-O-(2-mercapto-4-methyl-5-thiazolyl)-3β,16α,21β,22α-O-tetrahydroxy-oleantel-2-ene-23-aldehyde (S-16) is an effective candidate as an antibacterial agent for the prevention of bacterial resistance against antibiotics.
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Affiliation(s)
- Chunfang Zhu
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou , Guangdong 510640 , People's Republic of China
| | - Meng Zhang
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou , Guangdong 510640 , People's Republic of China
| | - Qiaoling Tang
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou , Guangdong 510640 , People's Republic of China
| | - Qian Yang
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou , Guangdong 510640 , People's Republic of China
| | - Jing Li
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou , Guangdong 510640 , People's Republic of China
| | - Xuan He
- Gannan Medical University Collaborative Innovation Center for Gannan Oil-Tea Camellia Industrial Development , Ganzhou , Jiangxi 341000 , People's Republic of China
| | - Yong Ye
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou , Guangdong 510640 , People's Republic of China
- Gannan Medical University Collaborative Innovation Center for Gannan Oil-Tea Camellia Industrial Development , Ganzhou , Jiangxi 341000 , People's Republic of China
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17
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Corona-Díaz A, García-Merinos JP, Ochoa ME, Del Río RE, Santillan R, Rojas-Lima S, Morzycki JW, López Y. TiCl 4 catalyzed cleavage of (25R)-22-oxo-23-spiroketals. Synthesis of sapogenins with furostanol and pyranone E rings on the side chain. Steroids 2019; 152:108488. [PMID: 31499076 DOI: 10.1016/j.steroids.2019.108488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 08/04/2019] [Accepted: 08/27/2019] [Indexed: 02/07/2023]
Abstract
The regioselective opening of the F ring of 22-oxo-23-spiroketals 7a-d using TiCl4 in acetic anhydride yielded the novel furostanols 11a-d along with cholestanic derivatives 8a-d with pyranone E ring. The structures of the new derivatives thus obtained were established using one- (DEPT) and two-dimensional 1H, 13C NMR experiments (COSY, HSQC, HMBC, NOESY). The 22α-hydroxyl orientation in compounds 11a-d was proposed by comparison of the 13C chemical shifts with those of other aglycone members of this family, and confirmed by combined NOESY and X-ray diffraction analysis of compound 11a.
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Affiliation(s)
- Alejandro Corona-Díaz
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Ed.B-1, C.U., Morelia, Michoacán 58030, Mexico
| | - J Pablo García-Merinos
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Ed.B-1, C.U., Morelia, Michoacán 58030, Mexico
| | - María E Ochoa
- Departamento de Química, CINVESTAV-IPN, Apdo. Postal 14-740, México, D.F., 07000, Mexico
| | - Rosa E Del Río
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Ed.B-1, C.U., Morelia, Michoacán 58030, Mexico
| | - Rosa Santillan
- Departamento de Química, CINVESTAV-IPN, Apdo. Postal 14-740, México, D.F., 07000, Mexico
| | - Susana Rojas-Lima
- Área Académica de Química, Universidad Autonoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo Km 4.5, Ciudad Universitaria, 42184, Mineral de la Reforma, Hidalgo, Mexico
| | - Jacek W Morzycki
- Institute of Chemistry, University of Białystok, K. Ciołkowskiego 1 K, 15-245 Białystok, Poland
| | - Yliana López
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Ed.B-1, C.U., Morelia, Michoacán 58030, Mexico.
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18
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Ekiz G, Yılmaz S, Yusufoglu H, Kırmızıbayrak PB, Bedir E. Microbial Transformation of Cycloastragenol and Astragenol by Endophytic Fungi Isolated from Astragalus Species. J Nat Prod 2019; 82:2979-2985. [PMID: 31713424 DOI: 10.1021/acs.jnatprod.9b00336] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Biotransformation of Astragalus sapogenins (cycloastragenol (1) and astragenol (2)) by Astragalus species originated endophytic fungi resulted in the production of five new metabolites (3, 7, 10, 12, 14) together with 10 known compounds. The structures of the new compounds were established by NMR spectroscopic and HRMS analysis. Oxygenation, oxidation, epoxidation, dehydrogenation, and ring cleavage reactions were observed on the cycloartane (9,19-cyclolanostane) nucleus. The ability of the compounds to increase telomerase activity in neonatal cells was also evaluated. After prescreening studies to define potent telomerase activators, four compounds were selected for subsequent bioassays. These were performed using very low doses ranging from 0.1 to 30 nM compared to the control cells treated with DMSO. The positive control cycloastragenol and 8 were found to be the most active compounds, with 5.2- (2 nM) and 5.1- (0.5 nM) fold activations versus DMSO, respectively. At the lowest dose of 0.1 nM, compounds 4 and 13 provided 3.5- and 3.8-fold activations, respectively, while cycloastragenol showed a limited activation (1.5-fold).
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Affiliation(s)
- Güner Ekiz
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy , Near East University , Nicosia , Mersin 10 , Turkey
- Department of Bioengineering, Graduate School of Natural and Applied Sciences , Ege University , 35100 Bornova-İzmir , Turkey
| | - Sinem Yılmaz
- Department of Bioengineering, Faculty of Engineering , University of Alanya Aladdin Keykubat , Antalya 07400 , Turkey
- Department of Biotechnology, Graduate School of Natural and Applied Sciences , Ege University , 35100 Bornova-İzmir , Turkey
| | - Hasan Yusufoglu
- Department of Pharmacognosy, College of Pharmacy , Prince Sattam Bin Abdulaziz University , 11942 Al-Kharj , Saudi Arabia
| | | | - Erdal Bedir
- Department of Bioengineering, Faculty of Engineering , Izmir Institute of Technology , 35430 Urla-Izmir , Turkey
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19
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Yang Q, Wang N, Zhang J, Chen G, Xu H, Meng Q, Du Y, Yang X, Fan H. In vitro and in silico evaluation of stereoselective effect of ginsenoside isomers on platelet P2Y 12 receptor. Phytomedicine 2019; 64:152899. [PMID: 31454649 DOI: 10.1016/j.phymed.2019.152899] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 03/07/2019] [Accepted: 03/19/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND P2Y12 receptor (P2Y12R) is a newly discovered Gi-coupled ADP receptor that plays critical role in platelet function. Ginsenosides are the main constituents responsible for most of pharmacological actions of ginseng, especially cardio-cerebrovascular protective efficacy that is closely related to the influence on platelet function. HYPOTHESIS/PURPOSE To explore stereoselective effect of naturally abundant ginsenoside isomers, including the C-20 epimers of protopanaxadiol (PPD), protopanaxatriol (PPT), and their glycosides Rg2, Rg3, Rh1, Rh2 on P2Y12R in platelets. STUDY DESIGN/METHODS Both in vitro assay and in silico molecular docking study were performed to investigate the stereoselective effects. RESULTS In vitro assay using washed rat platelets revealed differential effects of ginsenoside isomers on ADP-induced platelet aggregation with the direction and degree of action varying with chemical structures. More to the point, the ginsenoside 20S-Rh2 but not its 20R-epimer was found to be the only one that could significantly promote in vitro platelets aggregation induced by ADP. The correlation analysis demonstrated that ginsenosides may have impact on P2Y12R related platelet functions through a cAMP-dependent pathway. Molecular docking stimulation further indicated that ginsenoside isomers could be potent substrate of P2Y12R with differential protein-ligand interaction that would be responsible for the stereoselective efficacy of C-20 ginsenoside epimers. Hydrogen bonding with Asp266 via the C-20 hydroxyl may provide ginsenosides with promoting effect on ADP-induced platelets aggregation, whereas interactions with Tyr105 could contribute to the promotion of inhibitory efficacy. CONCLUSION Ginsenosides are potent P2Y12R substrate with stereoselective effects on P2Y12R-related platelet function, which result from their chemical diversity and are closely related to the different interaction ways as P2Y12R ligand.
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Affiliation(s)
- Qianwen Yang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, No. 32 Qingquan Road, Yantai 264005, Shandong, China
| | - Ning Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, No. 32 Qingquan Road, Yantai 264005, Shandong, China
| | - Jie Zhang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, No. 32 Qingquan Road, Yantai 264005, Shandong, China
| | - Geng Chen
- School of Chemistry and Chemical Engineering, Yantai University, No. 32 Qingquan Road, Yantai 264005, Shandong, China
| | - Hui Xu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, No. 32 Qingquan Road, Yantai 264005, Shandong, China.
| | - Qingguo Meng
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, No. 32 Qingquan Road, Yantai 264005, Shandong, China.
| | - Yuan Du
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, No. 32 Qingquan Road, Yantai 264005, Shandong, China
| | - Xin Yang
- School of Chemistry and Chemical Engineering, Yantai University, No. 32 Qingquan Road, Yantai 264005, Shandong, China
| | - Huaying Fan
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, No. 32 Qingquan Road, Yantai 264005, Shandong, China
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Han JY, Baek SH, Jo HJ, Yun DW, Choi YE. Genetically modified rice produces ginsenoside aglycone (protopanaxadiol). Planta 2019; 250:1103-1110. [PMID: 31168665 DOI: 10.1007/s00425-019-03204-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 05/31/2019] [Indexed: 06/09/2023]
Abstract
MAIN CONCLUSION Protopanaxadiol is dammarane-type tetracyclic triterpene sapogenin found in ginseng and has a high medicinal values. We successfully constructed transgenic rice producing protopanaxadiol by introducing the ginseng PgDDS and CYP716A47 genes in this crop plant. Protopanaxadiol (PPD), an aglycone of ginsenosides, possesses pleiotropic anticarcinogenesis activities in many cancers. Here, we constructed transgenic rice overexpressing the Panax ginseng dammarenediol-II synthase gene (PgDDS) and protopanaxadiol synthase gene (CYP716A47) driven by a rice endosperm-specific α-globulin promoter. Among more than 50 independent lines, five transgenic lines were selected. The introduction of the genes in the T1 generation of the transgenic lines was confirmed by genomic PCR. The expression of the introduced genes in T2 seeds was confirmed by qPCR. Methanol extracts of transgenic rice grains were analyzed by LC/MS to detect the production of PPD and dammarenediol-II (DD). The production of both PPD and DD was identified not only by comparing the retention times but also mass fraction patterns of authentic PPD and DD standards. The mean concentrations of PPD and DD in rice grains were 16.4 and 4.5 µg/g dry weight, respectively. The invention of genetically engineered rice grains producing PPD and DD can be applied to rice breeding to reinforce new medicinal values.
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Affiliation(s)
- Jung Yeon Han
- Department of Forest Resources, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, 200-701, Republic of Korea
| | - So-Hyeon Baek
- Department of Well-being Resources, Sunchon National University, 255, Suncheon-si, Jeonnam, 57922, South Korea
| | - Hye Jeong Jo
- Department of Forest Resources, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, 200-701, Republic of Korea
| | - Do Won Yun
- Biosafety Division, NAAS, RDA, Jeonju, South Korea
| | - Yong Eui Choi
- Department of Forest Resources, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, 200-701, Republic of Korea.
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Kim SA, Shin KC, Oh DK. Complete Biotransformation of Protopanaxadiol-Type Ginsenosides into 20- O- β-Glucopyranosyl-20( S)-protopanaxadiol by Permeabilized Recombinant Escherichia coli Cells Coexpressing β-Glucosidase and Chaperone Genes. J Agric Food Chem 2019; 67:8393-8401. [PMID: 31291721 DOI: 10.1021/acs.jafc.9b02592] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The ginsenoside 20-O-β-glucopyranosyl-20(S)-protopanaxadiol or compound K is an essential ingredient in functional food, cosmetics, and traditional medicines. However, no study has reported the complete conversion of all protopanaxadiol (PPD)-type ginsenosides from ginseng extract into compound K using whole-cell conversion. To increase the production of compound K from ginseng extract using whole recombinant cells, the β-glucosidase enzyme from Caldicellulosiruptor bescii was coexpressed with a chaperone expression system (pGro7), and the cells expressing the coexpression system were permeabilized with ethylenediaminetetraacetic acid. The permeabilized cells carrying the chaperone coexpression system showed a 2.6-fold increase in productivity and yield as compared with nontreated cells, and completely converted all PPD-type ginsenosides from ginseng root extract into compound K with the highest productivity among the results reported so far. Our results will contribute to the industrial biological production of compound K.
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Affiliation(s)
- Se-A Kim
- Department of Bioscience and Biotechnology , Konkuk University , Seoul 05029 , Republic of Korea
| | - Kyung-Chul Shin
- Department of Bioscience and Biotechnology , Konkuk University , Seoul 05029 , Republic of Korea
| | - Deok-Kun Oh
- Department of Bioscience and Biotechnology , Konkuk University , Seoul 05029 , Republic of Korea
- Research Institute of Bioactive-Metabolome Network , Konkuk University , Seoul 05029 , Republic of Korea
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22
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Herrera T, Navarro Del Hierro J, Fornari T, Reglero G, Martin D. Acid hydrolysis of saponin-rich extracts of quinoa, lentil, fenugreek and soybean to yield sapogenin-rich extracts and other bioactive compounds. J Sci Food Agric 2019; 99:3157-3167. [PMID: 30536393 DOI: 10.1002/jsfa.9531] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 11/15/2018] [Accepted: 12/10/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Typical hydrolysis times of saponins generally do not take into consideration the effect of time on the degradation of the target compounds, namely sapogenins. When producing natural extracts, it should be borne in mind that conducting hydrolysis to yield a target compound might also affect the final composition of the extracts in terms of other bioactive compounds. In our study, saponin-rich extracts from fenugreek, quinoa, lentil, and soybean were produced and their acid hydrolysis to give sapogenin-rich extracts was conducted over different periods (0-6 h). The disappearance of saponins and appearance of sapogenins was analyzed using high-performance liquid chromatography-diode array detection-mass spectrometry (HPLC-DAD-MS) and gas chromatography-mass spectrometry (GC-MS), respectively. The impact of hydrolysis on the phytosterols and tocopherol in the extracts was also evaluated. RESULTS Fenugreek showed the highest saponin content (169 g kg-1 ), followed by lentil (20 g kg-1 ), quinoa (15 g kg-1 ), and soybean (13 g kg-1 ). Hydrolysis for 1 h caused the complete disappearance of saponins and the greatest release of sapogenins. Hydrolyzed fenugreek and quinoa extracts contained the highest amounts of sapogenins and minor fractions of phytosterols and tocopherol. Hydrolyzed extracts of lentil and soybean contained a major fraction of phytosterols and a low fraction of sapogenins. In all cases, sapogenins decreased after 1 h of hydrolysis, phytosterols slightly decreased, and tocopherol was unaffected. Standards of diosgenin and oleanolic acid also showed this decreasing pattern under acid hydrolysis conditions. CONCLUSION Hydrolysis times of 1 h for saponin-rich extracts from the assayed seeds guarantee the maximum transformation to sapogenin-rich extracts, along with phytosterols and tocopherol. Fenugreek and quinoa seeds are preferred for this. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Teresa Herrera
- Departamento de Producción y Caracterización de Nuevos Alimentos, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), Madrid, Spain
- Sección Departamental de Ciencias de la Alimentación, Facultad de Ciencias, UAM, Madrid, Spain
| | - Joaquín Navarro Del Hierro
- Departamento de Producción y Caracterización de Nuevos Alimentos, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), Madrid, Spain
- Sección Departamental de Ciencias de la Alimentación, Facultad de Ciencias, UAM, Madrid, Spain
| | - Tiziana Fornari
- Departamento de Producción y Caracterización de Nuevos Alimentos, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), Madrid, Spain
- Sección Departamental de Ciencias de la Alimentación, Facultad de Ciencias, UAM, Madrid, Spain
| | - Guillermo Reglero
- Departamento de Producción y Caracterización de Nuevos Alimentos, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), Madrid, Spain
- Sección Departamental de Ciencias de la Alimentación, Facultad de Ciencias, UAM, Madrid, Spain
- Imdea-Alimentación, CEI UAM+CSIC, Madrid, Spain
| | - Diana Martin
- Departamento de Producción y Caracterización de Nuevos Alimentos, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), Madrid, Spain
- Sección Departamental de Ciencias de la Alimentación, Facultad de Ciencias, UAM, Madrid, Spain
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Lee W, Ku SK, Kim JE, Cho SH, Song GY, Bae JS. Inhibitory effects of protopanaxatriol type ginsenoside fraction (Rgx365) on particulate matter-induced pulmonary injury. J Toxicol Environ Health A 2019; 82:338-350. [PMID: 30917762 DOI: 10.1080/15287394.2019.1596183] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Inhalation of fine particulate matter (PM2.5) is associated with elevated pulmonary injury attributed to the loss of vascular barrier integrity. Black ginseng (BG), steamed 9 times and dried ginseng, and its major protopanaxatriol type ginsenosides (ginsenoside Rg4, Rg6, Rh4, Rh1, and Rg2) exhibited various biological activities including anti-septic, anti-diabetic, wound healing, immune-stimulatory, and anti-antioxidant activity. The aim of this study was to investigate the beneficial effects of Rgx365 (a protopanaxatriol type rare ginsenosides fraction) on PM-induced lung endothelial cell (EC) barrier disruption and pulmonary inflammation. Permeability, leukocyte migration, activation of proinflammatory proteins, generation of reactive oxygen species (ROS), and histology were examined in PM2.5-treated EC and mice. Rgx365 significantly scavenged PM2.5-induced ROS, inhibited ROS-induced activation of p38 mitogen-activated protein kinase (MAPK), activated Akt in purified pulmonary EC, which helped maintain endothelial integrity. Further, Rgx365 reduced vascular protein leakage, leukocyte infiltration, and proinflammatory cytokine release in bronchoalveolar lavage fluids in PM-induced mouse lung tissues. Data suggested that Rgx365 might exhibit protective effects in PM-induced inflammatory lung injury and vascular hyperpermeability.
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Affiliation(s)
- Wonhwa Lee
- a Aging Research Center , Korea Research Institute of Bioscience and Biotechnology (KRIBB) , Deajeon , Republic of Korea
- b College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team , Kyungpook National University , Daegu , Republic of Korea
| | - Sae-Kwang Ku
- c Department of Histology and Anatomy , College of Korean Medicine, Daegu Haany University , Gyeongsan-si , Republic of Korea
| | - Ji-Eun Kim
- d College of Pharmacy , Chungnam National University , Daejon , Republic of Korea
| | - Soo-Hyun Cho
- d College of Pharmacy , Chungnam National University , Daejon , Republic of Korea
| | - Gyu-Yong Song
- d College of Pharmacy , Chungnam National University , Daejon , Republic of Korea
| | - Jong-Sup Bae
- b College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team , Kyungpook National University , Daegu , Republic of Korea
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24
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Ramos-Enríquez MA, Rárová L, Iglesias-Arteaga MA. Synthesis of dimeric spirostanols linked through a 1,4-dimethylidenebenzene moiety by double BF 3·Et 2O-catalyzed aldol condensation of steroid sapogenins and terephtalaldehyde. Steroids 2018; 140:58-61. [PMID: 30149074 DOI: 10.1016/j.steroids.2018.08.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 07/26/2018] [Accepted: 08/14/2018] [Indexed: 01/28/2023]
Abstract
BF3·Et2O-catalyzed double aldol condensation between acetylated steroid sapogenins and terephtalaldehyde led to acetylated dimeric spirostanols linked through a 1,4-dimethylidenebenzene moiety in moderate to good yields. The E configurations of the introduced double bonds were corroborated by NOE experiments. Saponification of the dimeric steroids led to the corresponding dimeric spirostanols.
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Affiliation(s)
- Manuel A Ramos-Enríquez
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México, D.F., Mexico
| | - Lucie Rárová
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic
| | - Martín A Iglesias-Arteaga
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México, D.F., Mexico.
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25
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Kim JE, Jang IS, Sung BH, Kim SC, Lee JY. Rerouting of NADPH synthetic pathways for increased protopanaxadiol production in Saccharomyces cerevisiae. Sci Rep 2018; 8:15820. [PMID: 30361526 PMCID: PMC6202386 DOI: 10.1038/s41598-018-34210-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 10/11/2018] [Indexed: 11/17/2022] Open
Abstract
Ginseng (Panax ginseng) and its bioactive components, ginsenosides, are popular medicinal herbal products, exhibiting various pharmacological effects. Despite their advocated use for medication, the long cultivation periods of ginseng roots and their low ginsenoside content prevent mass production of this compound. Yeast Saccharomyces cerevisiae was engineered for production of protopanaxadiol (PPD), a type of aglycone characterizing ginsenoside. PPD-producing yeast cell factory was further engineered by obtaining a balance between enzyme expressions and altering cofactor availability. Different combinations of promoters (PGPD, PCCW12, and PADH2) were utilized to construct the PPD biosynthetic pathway. Rerouting the redox metabolism to improve NADPH availability in the engineered S. cerevisiae also increased PPD production. Combining these approaches resulted in more than an 11-fold increase in PPD titer over the initially constructed strain. The series of metabolic engineering strategies of this study provides a feasible approach for the microbial production of PPD and development of microbial platforms producing other industrially-relevant terpenoids.
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Affiliation(s)
- Jae-Eung Kim
- Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), 406-30, Jongga-ro, Jung-gu, Ulsan, 44429, Republic of Korea
| | - In-Seung Jang
- Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), 406-30, Jongga-ro, Jung-gu, Ulsan, 44429, Republic of Korea
| | - Bong Hyun Sung
- Cell Factory Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Sun Chang Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.
| | - Ju Young Lee
- Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), 406-30, Jongga-ro, Jung-gu, Ulsan, 44429, Republic of Korea.
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26
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Wei G, Wei F, Yuan C, Chen Z, Wang Y, Xu J, Zhang Y, Dong L, Chen S. Integrated Chemical and Transcriptomic Analysis Reveals the Distribution of Protopanaxadiol- and Protopanaxatriol-Type Saponins in Panax notoginseng. Molecules 2018; 23:molecules23071773. [PMID: 30029488 PMCID: PMC6099965 DOI: 10.3390/molecules23071773] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 07/14/2018] [Accepted: 07/16/2018] [Indexed: 02/04/2023] Open
Abstract
Panax notoginseng is famous for its important therapeutic effects and commonly used worldwide. The active ingredients saponins have distinct contents in different tissues of P. notoginseng, and they may be related to the expression of key genes in the synthesis pathway. In our study, high-performance liquid chromatography results indicated that the contents of protopanaxadiol-(Rb1, Rc, Rb2, and Rd) and protopanaxatriol-type (R1, Rg1, and Re) saponins in below ground tissues were higher than those in above ground tissues. Clustering dendrogram and PCA analysis suggested that the below and above ground tissues were clustered into two separate groups. A total of 482 and 882 unigenes were shared in the below and above ground tissues, respectively. A total of 75 distinct expressions of CYPs transcripts (RPKM ≥ 10) were detected. Of these transcripts, 38 and 37 were highly expressed in the below ground and above ground tissues, respectively. RT-qPCR analysis showed that CYP716A47 gene was abundantly expressed in the above ground tissues, especially in the flower, whose expression was 31.5-fold higher than that in the root. CYP716A53v2 gene was predominantly expressed in the below ground tissues, especially in the rhizome, whose expression was 20.1-fold higher than that in the flower. Pearson's analysis revealed that the CYP716A47 expression was significantly correlated with the contents of ginsenoside Rc and Rb2. The CYP716A53v2 expression was associated with the saponin contents of protopanaxadiol-type (Rb1 and Rd) and protopanaxatriol-type (R1, Rg1, and Re). Results indicated that the expression patterns of CYP716A47 and CYP716A53v2 were correlated with the distribution of protopanaxadiol-type and protopanaxatriol-type saponins in P. notoginseng. This study identified the pivotal genes regulating saponin distribution and provided valuable information for further research on the mechanisms of saponin synthesis, transportation, and accumulation.
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Affiliation(s)
- Guangfei Wei
- Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Fugang Wei
- Wenshan Miaoxiang Notoginseng Technology Co., Ltd., Wenshan 663000, China.
| | - Can Yuan
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Zhongjian Chen
- Institute of Sanqi Research, Wenshan University, Wenshan 663000, China.
| | - Yong Wang
- Institute of Sanqi Research, Wenshan University, Wenshan 663000, China.
| | - Jiang Xu
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Yongqing Zhang
- Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Linlin Dong
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Shilin Chen
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
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Ekiz G, Duman S, Bedir E. Biotransformation of cyclocanthogenol by the endophytic fungus Alternaria eureka 1E1BL1. Phytochemistry 2018; 151:91-98. [PMID: 29677643 DOI: 10.1016/j.phytochem.2018.04.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 03/31/2018] [Accepted: 04/09/2018] [Indexed: 06/08/2023]
Abstract
The microbial transformation of cyclocanthogenol (CCG), Astragalus sp. originated sapogenin, by the endophytic fungus Alternaria eureka 1E1BL1 isolated from Astragalus angustifolius was investigated. Hydroxylation, oxidation, epoxidation, O-methylation, ring-expansion and methyl migration reactions were observed on the triterpenoid skeleton. As a result, eight metabolites were isolated and the structures of the previously undescribed compounds were established by 1-D, 2-D NMR and HR-MS analyses.
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Affiliation(s)
- Güner Ekiz
- Department of Pharmacognosy, Faculty of Pharmacy, Near East University, Nicosia, Mersin 10, Turkey
| | - Seda Duman
- Department of Bioengineering, Faculty of Engineering, Izmir Institute of Technology, 35430 Urla-Izmir, Turkey
| | - Erdal Bedir
- Department of Bioengineering, Faculty of Engineering, Izmir Institute of Technology, 35430 Urla-Izmir, Turkey.
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28
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Debeleç-Bütüner B, Öztürk MB, Tağ Ö, Akgün İH, Yetik-Anacak G, Bedir E, Korkmaz KS. Cycloartane-type sapogenol derivatives inhibit NFκB activation as chemopreventive strategy for inflammation-induced prostate carcinogenesis. Steroids 2018; 135:9-20. [PMID: 29678446 DOI: 10.1016/j.steroids.2018.04.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 04/02/2018] [Accepted: 04/12/2018] [Indexed: 12/12/2022]
Abstract
Chronic inflammation is associated to 25% of cancer cases according to epidemiological data. Therefore, inhibition of inflammation-induced carcinogenesis can be an efficient therapeutic approach for cancer chemoprevention in drug development studies. It is also determined that anti-inflammatory drugs reduce cancer incidence. Cell culture-based in vitro screening methods are used as a fast and efficient method to investigate the biological activities of the biomolecules. In addition, saponins are molecules that are isolated from natural sources and are known to have potential for tumor inhibition. Studies on the preparation of analogues of cycloartane-type sapogenols (9,19-cyclolanostanes) have so far been limited. Therefore we have decided to direct our efforts toward the exploration of new anti-tumor agents prepared from cycloastragenol and its production artifact astragenol. The semi-synthetic derivatives were prepared mainly by oxidation, condensation, alkylation, acylation, and elimination reactions. After preliminary studies, five sapogenol analogues, two of which were new compounds (2 and 3), were selected and screened for their inhibitory activity on cell viability and NFκB signaling pathway activity in LNCaP prostate cancer cells. We found that the astragenol derivatives 1 and 2 as well as cycloastragenol derivatives 3, 4, and 5 exhibited strong inhibitory activity on NFκB signaling leading the repression of NFκB transcriptional activation and suppressed cell proliferation. The results suggested that these molecules might have significant potential for chemoprevention of prostate carcinogenesis induced by inflammatory NFκB signaling pathway.
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Affiliation(s)
- Bilge Debeleç-Bütüner
- Ege University, Faculty of Pharmacy, Department of Pharmaceutical Biotechnology, Izmir, Turkey.
| | - Mert Burak Öztürk
- Ege University, Faculty of Engineering, Department of Bioengineering, Cancer Biology Laboratory, Izmir, Turkey
| | - Özgür Tağ
- Ege University, Graduate School of Natural and Applied Sciences, Department of Chemistry, Izmir, Turkey
| | - İsmail Hakkı Akgün
- Ege University, Faculty of Engineering, Department of Bioengineering, Izmir, Turkey
| | - Günay Yetik-Anacak
- Ege University, Faculty of Pharmacy, Department of Pharmacology, Izmir, Turkey
| | - Erdal Bedir
- Ege University, Faculty of Engineering, Department of Bioengineering, Izmir, Turkey.
| | - Kemal Sami Korkmaz
- Ege University, Faculty of Engineering, Department of Bioengineering, Cancer Biology Laboratory, Izmir, Turkey
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29
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Shin KC, Kim TH, Choi JH, Oh DK. Complete Biotransformation of Protopanaxadiol-Type Ginsenosides to 20- O-β-Glucopyranosyl-20( S)-protopanaxadiol Using a Novel and Thermostable β-Glucosidase. J Agric Food Chem 2018; 66:2822-2829. [PMID: 29468877 DOI: 10.1021/acs.jafc.7b06108] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The ginsenoside 20- O-β-glucopyranosyl-20( S)-protopanaxadiol, compound K, has attracted much attention in functional food, traditional medicine, and cosmetic industries because of diverse pharmaceutical activities. The effective production of compound K from ginseng extracts has been required. However, an enzyme capable of completely converting all protopanaxadiol (PPD)-type ginsenosides to compound K has not been reported until now. In this study, unlike other enzymes, β-glucosidase from Caldicellulosiruptor bescii was able to hydrolyze sugar moieties such as l-arabinofuranose as well as d-glucose and l-arabinopyranose as the C-20 outer sugar in ginsenosides. Thus, ginsenoside Rc containing l-arabinofuranose can be converted to compound K by only this enzyme. Under the optimized reaction conditions, the enzyme completely converted PPD-type ginsenosides in ginseng extracts to compound K with the highest productivity among the reported results. This is the first report of the enzyme capable of completely converting all PPD-type ginsenosides into compound K.
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Affiliation(s)
- Kyung-Chul Shin
- Department of Bioscience and Biotechnology , Konkuk University , Seoul 05029 , South Korea
| | - Tae-Hun Kim
- Department of Bioscience and Biotechnology , Konkuk University , Seoul 05029 , South Korea
| | - Ji-Hyeon Choi
- Department of Bioscience and Biotechnology , Konkuk University , Seoul 05029 , South Korea
| | - Deok-Kun Oh
- Department of Bioscience and Biotechnology , Konkuk University , Seoul 05029 , South Korea
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30
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Dai L, Zhu W, Si C, Lei J. "Nano-Ginseng" for Enhanced Cytotoxicity AGAINST Cancer Cells. Int J Mol Sci 2018; 19:ijms19020627. [PMID: 29473838 PMCID: PMC5855849 DOI: 10.3390/ijms19020627] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 02/06/2018] [Accepted: 02/11/2018] [Indexed: 01/29/2023] Open
Abstract
Panax ginseng has high medicinal and health values. However, the various and complex components of ginseng may interact with each other, thus reducing and even reversing therapeutic effects. In this study, we designed and fabricated a novel "nano-ginseng" with definite ingredients, ginsenoside Rb1/protopanaxadiol nanoparticles (Rb1/PPD NPs), completely based on the protopanaxadiol-type extracts. The optimized nano-formulations demonstrated an appropriate size (~110 nm), high drug loading efficiency (~96.8%) and capacity (~27.9 wt %), long half-time in systemic circulation (nine-fold longer than free PPD), better antitumor effects in vitro and in vivo, higher accumulation at the tumor site and reduced damage to normal tissues. Importantly, this process of "nano-ginseng" production is a simple, scalable, green economy process.
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Affiliation(s)
- Lin Dai
- Tianjin Key Laboratory of Pulp and Paper, College of Papermaking Science and Technology, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Weiyan Zhu
- Tianjin Key Laboratory of Pulp and Paper, College of Papermaking Science and Technology, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Chuanling Si
- Tianjin Key Laboratory of Pulp and Paper, College of Papermaking Science and Technology, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Jiandu Lei
- Beijing Key Laboratory of Lignocellulosic Chemistry, College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, China.
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Vargas-Romero K, Alberto O, Flores-Álamo M, Iglesias-Arteaga MA. Baeyer-Villiger reaction of steroid sapogenins by CF 3COOH-H 2O 2. A short cut to pregnan-3β,16β,20-triol 3-monoacetates. Steroids 2017; 128:1-5. [PMID: 29024671 DOI: 10.1016/j.steroids.2017.10.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 09/29/2017] [Accepted: 10/05/2017] [Indexed: 10/18/2022]
Abstract
Treatment of steroid sapogenins with H2O2 in CF3COOH for 15min followed by reflux in CH3OH/H2O afforded good yields of pregnan-3β,16β,20-triol 3-monoacetates. When the hydrolysis step was carried out with KOH in refluxing methanol excellent yields pregnantriols were obtained. The resulting compounds were characterized by their melting points and NMR spectral data. An X-ray diffraction analysis of compound 3a confirmed the proposed structure and provided detailed information about the bond lengths, bond angles and conformation.
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Affiliation(s)
- Katherine Vargas-Romero
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México D.F., Mexico
| | - Oscar Alberto
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México D.F., Mexico
| | - Marcos Flores-Álamo
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México D.F., Mexico
| | - Martín A Iglesias-Arteaga
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México D.F., Mexico.
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Ramos-Enríquez MA, Iglesias-Arteaga MA. Synthesis of novel hybrid steroid dimers by BF 3·Et 2O-catalyzed aldol condensation of 2-formyl-estradiol diacetate and steroid sapogenins. Steroids 2017; 128:46-49. [PMID: 29066328 DOI: 10.1016/j.steroids.2017.10.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 10/12/2017] [Accepted: 10/16/2017] [Indexed: 12/27/2022]
Abstract
BF3·Et2O-catalyzed aldol condensation of steroid sapogenins with 2-formyl-estradiol diacetate afforded two novel classes of steroid dimers in which an estrogenic core is attached to the spirostanic side chain of an steroid sapogenin through an exocyclic double bond in position C-23, or through a spiro centre in C-22.
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Affiliation(s)
- Manuel A Ramos-Enríquez
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México, CDMX, Mexico
| | - Martín A Iglesias-Arteaga
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México, CDMX, Mexico.
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Yang Q, Zhao C, Zhao J, Ye Y. Synthesis and neuroprotective effects of the complex nanoparticles of iron and sapogenin isolated from the defatted seeds of Camellia oleifera. Pharm Biol 2017; 55:428-434. [PMID: 27937035 PMCID: PMC6130765 DOI: 10.1080/13880209.2016.1245346] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 09/28/2016] [Accepted: 09/30/2016] [Indexed: 05/26/2023]
Abstract
CONTEXT The defatted seeds of Camellia oleifera var. monosperma Hung T. Chang (Theaceae) are currently discarded without effective utilization. However, sapogenin has been isolated and shows antioxidative, anti-inflammatory and analgesic activities suggestive of its neuroprotective function. OBJECTIVE In order to improve the activities of sapogenin, the nanoparticles of iron-sapogenin have been synthesized, and the neuroprotective effects are evaluated. MATERIALS AND METHODS Structural characters of the nanoparticles were analyzed, and the antioxidant effect was assessed by DPPH method, and the neuroprotective effect was evaluated by rotenone-induced neurodegeneration in Kunming mice injected subcutaneously into the back of neck with rotenone (50 mg/kg/day) for 6 weeks and then treated by tail intravenous injection with the iron-sapogenin at the dose of 25, 50 and 100 mg/kg for 7 days. Mice behaviour and neurotransmitters were tested. RESULTS The product had an average size of 162 nm with spherical shape, and scavenged more than 90% DPPH radicals at 0.8 mg/mL concentration. It decreased behavioural disorder and malondialdehyde content in mice brain, and increased superoxide dismutase activity, tyrosine hydroxylase expression, dopamine and acetylcholine levels in brain in dose dependence, and their maximum changes were respectively up to 60.83%, 25.17%, 22.13%, 105.26%, 42.17% and 22.89% as compared to vehicle group. Iron-sapogenin nanoparticle shows significantly better effects than the sapogenin. DISCUSSION AND CONCLUSION Iron-sapogenin alleviates neurodegeneration of mice injured by neurotoxicity of rotenone, it is a superior candidate of drugs for neuroprotection.
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Affiliation(s)
- Qian Yang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, PR China
| | - Chuang Zhao
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, PR China
| | - Jun Zhao
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, PR China
| | - Yong Ye
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, PR China
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Ramos-Enríquez MA, Vargas-Romero K, Rárová L, Strnad M, Iglesias-Arteaga MA. Synthesis and in vitro anticancer activity of 23(23')E-benzylidenespirostanols derived from steroid sapogenins. Steroids 2017; 128:85-88. [PMID: 28887172 DOI: 10.1016/j.steroids.2017.08.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 08/22/2017] [Accepted: 08/30/2017] [Indexed: 12/23/2022]
Abstract
Benzylidenespirostanols were prepared by two-step synthesis including BF3·Et2O-catalyzed aldol condensation of several acetylated steroid sapogenins with benzaldehyde followed by saponification. The obtained compounds showed moderate cytotoxicity against three cancer cell lines (T-lymphoblastic leukemia cell line CEM, breast carcinoma cell line MCF7 and cervical carcinoma cell line HeLa) and normal human fibroblasts (BJ). The most active of the five tested substances was 3c (lowest IC50 for MCF7 cells 19.9±0.1µM) without any selectivity towards human cancer and normal cells, respectively.
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Affiliation(s)
- Manuel A Ramos-Enríquez
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México, D.F., Mexico
| | - Katherine Vargas-Romero
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México, D.F., Mexico
| | - Lucie Rárová
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic
| | - Miroslav Strnad
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University & Institute of Experimental Botany ASCR, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic
| | - Martín A Iglesias-Arteaga
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México, D.F., Mexico.
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Liu X, Latkolik S, Atanasov AG, Kunert O, Pferschy-Wenzig EM, Heiss EH, Malainer C, Schinkovitz A, Kollroser M, Dirsch VM, Bauer R. Bupleurum chinense Roots: a Bioactivity-Guided Approach toward Saponin-Type NF-κB Inhibitors. Planta Med 2017; 83:1242-1250. [PMID: 28902374 PMCID: PMC6193276 DOI: 10.1055/s-0043-118226] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Revised: 08/04/2017] [Accepted: 08/08/2017] [Indexed: 06/07/2023]
Abstract
The roots of Bupleurum chinense have a long history in traditional medicine to treat infectious diseases and inflammatory disorders. Two major compounds, saikosaponins A and D, were reported to exert potent anti-inflammatory activity by inhibiting NF-κB. In the present study, we isolated new saikosaponin analogues from the roots of B. chinese interfering with NF-κB activity in vitro. The methanol-soluble fraction of the dichloromethane extract of Radix Bupleuri was subjected to activity-guided isolation yielding 18 compounds, including triterpenoids and polyacetylenes. Their structures were determined by spectroscopic methods as saikogenin D (1), prosaikogenin D (2), saikosaponins B2 (3), W (4), B1 (5), Y (6), D (7), A (8), E (9), B4 (10), B3 (11), and T (12), saikodiyne A (13), D (14), E (15) and F (16), falcarindiol (17), and 1-linoleoyl-sn-glycero-3-phosphorylcholine (18). Among them, 4, 15, and 16 are new compounds, whereas 6, previously described as a semi-synthetic compound, is isolated from a natural source for the first time, and 13-17 are the first reports of polyacetylenes from this plant. Nine saponins/triterpenoids were tested for inhibition of NF-κB signaling in a cell-based NF-κB-dependent luciferase reporter gene model in vitro. Five of them (1, 2, 4, 6, and 8) showed strong (> 50%, at 30 µM) NF-κB inhibition, but also varying degrees of cytotoxicity, with compounds 1 and 4 (showing no significant cytotoxicity) presenting IC50 values of 14.0 µM and 14.1 µM in the cell-based assay, respectively.
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Affiliation(s)
- Xin Liu
- Institute of Pharmaceutical Sciences, Department of Pharmacognosy, University of Graz, Austria
| | | | - Atanas G. Atanasov
- Department of Pharmacognosy, University of Vienna, Austria
- Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, Jastrzebiec, Poland
| | - Olaf Kunert
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, University of Graz, Austria;
| | | | - Elke H. Heiss
- Department of Pharmacognosy, University of Vienna, Austria
| | | | - Andreas Schinkovitz
- Institute of Pharmaceutical Sciences, Department of Pharmacognosy, University of Graz, Austria
| | | | | | - Rudolf Bauer
- Institute of Pharmaceutical Sciences, Department of Pharmacognosy, University of Graz, Austria
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Zhou WX, Sun YY, Yuan WH, Zhao YQ. Water-soluble derivatives of 25-OCH 3-PPD and their anti-proliferative activities. Steroids 2017; 121:32-39. [PMID: 28322864 DOI: 10.1016/j.steroids.2017.03.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 03/01/2017] [Accepted: 03/13/2017] [Indexed: 12/16/2022]
Abstract
(20R)-25-Methoxyl-dammarane-3β,12β,20-triol (25-OCH3-PPD, AD-1) is a dammarane-type sapogenin showing anti-tumor potential. In the search for new anti-tumor agents with higher potency than our previously identified compound 25-OCH3-PPD, 11 novel sulfamic acid and diacid derivatives that could improve water solubility and contribute to good drug potency and pharmacokinetic profiles were designed and synthesized. Their in vitro anti-tumor activities in MCF-7, A-549, HCT-116, and BGC-823 cell lines and one normal cell line were tested by standard MTT assay. Results showed that compared with compound 25-OCH3-PPD, compounds 1, 4, and 5 exhibited higher cytotoxic activity on almost all cell lines, together with lower toxicity in the normal cell. In particular, compound 1 exhibited the best anti-tumor activity in the in vitro assays. The water solubility of 25-OCH3-PPD and its derivatives was tested and the results showed that the solubility of 25-OCH3-PPD sulfamic acid and diacid derivatives were better than that of 25-OCH3-PPD in water, which may provide valuable data for the research and development of new anti-tumor agents.
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Affiliation(s)
- Wu-Xi Zhou
- Department of Traditional Chinese Medicine Chemical, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Yuan-Yuan Sun
- Department of Traditional Chinese Medicine Chemical, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Wei-Hui Yuan
- Department of Traditional Chinese Medicine Chemical, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Yu-Qing Zhao
- Department of Traditional Chinese Medicine Chemical, Shenyang Pharmaceutical University, Shenyang 110016, PR China; Key Laboratory of Structure-based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, PR China.
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Farh MEA, Kim YJ, Singh P, Yang DC. Cross Interaction Between Ilyonectria mors-panacis Isolates Infecting Korean Ginseng and Ginseng Saponins in Correlation with Their Pathogenicity. Phytopathology 2017; 107:561-569. [PMID: 27918242 DOI: 10.1094/phyto-05-16-0210-r] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Ilyonectria mors-panacis belongs to I. radicicola species complex and causes root rot and replant failure of ginseng in Asia and North America. The aims of this work were to identify I. mors-panacis that infect Korean ginseng using molecular approaches and to investigate whether their aggressiveness depends on their ability to metabolize ginseng saponins (ginsenosides) by their β-glucosidases, in comparison with other identified Ilyonectria species. Fourteen isolates were collected from culture collections or directly isolated from infected roots and mainly identified based on histone H3 (HIS H3) sequence. Among them, six isolates were identified as I. mors-panacis while others were identified as I. robusta and I. leucospermi. The pathogenicity tests confirmed that the isolates of I. mors-panacis were significantly more aggressive than I. robusta and I. leucospermi. The major ginsenosides in I. mors-panacis-infected roots were significantly reduced while significantly increased in those infected with other species. In vitro, the isolates were tested for their sensitivity and ability to metabolize the total major ginsenosides (Total MaG), protopanaxadiol-type major ginsenosides (PPD-type MaG), and protopanaxatriol-type major ginsenosides (PPT-type MaG). Unexpectedly, the growth rate and metabolic ability of I. mors-panacis isolates were significantly low on the three different ginsenoside fractions while those of I. robusta and I. leucospermi were significantly reduced on PPT-type MaG and Total MaG fractions and not affected on PPD-type MaG fraction. Our results indicate that major ginsenosides, especially PPT-type, have an antifungal effect and may intervene in ginseng defense during Ilyonectria species invasion, in particular the weak species. Also, the pathogenicity of I. mors-panacis may rely on its ability to reduce saponin content; however, whether this reduction is caused by detoxification or another method remains unclear.
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Affiliation(s)
- Mohamed El-Agamy Farh
- First, second, and fourth authors: Graduate School of Biotechnology and Ginseng Bank, College of Life Science, Kyung Hee University, Yongin, 446-701, Republic of Korea; and third and fourth authors: Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, Republic of Korea
| | - Yeon-Ju Kim
- First, second, and fourth authors: Graduate School of Biotechnology and Ginseng Bank, College of Life Science, Kyung Hee University, Yongin, 446-701, Republic of Korea; and third and fourth authors: Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, Republic of Korea
| | - Priyanka Singh
- First, second, and fourth authors: Graduate School of Biotechnology and Ginseng Bank, College of Life Science, Kyung Hee University, Yongin, 446-701, Republic of Korea; and third and fourth authors: Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, Republic of Korea
| | - Deok-Chun Yang
- First, second, and fourth authors: Graduate School of Biotechnology and Ginseng Bank, College of Life Science, Kyung Hee University, Yongin, 446-701, Republic of Korea; and third and fourth authors: Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, Republic of Korea
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Kim DK, Kweon KJ, Kim P, Kim HJ, Kim SS, Sohn NW, Maeng S, Shin JW. Ginsenoside Rg3 Improves Recovery from Spinal Cord Injury in Rats via Suppression of Neuronal Apoptosis, Pro-Inflammatory Mediators, and Microglial Activation. Molecules 2017; 22:molecules22010122. [PMID: 28085110 PMCID: PMC6155773 DOI: 10.3390/molecules22010122] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 01/03/2017] [Accepted: 01/09/2017] [Indexed: 12/04/2022] Open
Abstract
Spinal cord injury (SCI) is one of the most devastating medical conditions; however, currently, there are no effective pharmacological interventions for SCI. Ginsenoside Rg3 (GRg3) is one of the protopanaxadiols that show anti-inflammatory, anti-oxidant, and neuroprotective effects. The present study investigated the neuroprotective effect of GRg3 following SCI in rats. SCI was induced using a static compression model at vertebral thoracic level 10 for 5 min. GRg3 was administrated orally at a dose of 10 or 30 mg/kg/day for 14 days after the SCI. GRg3 (30 mg/kg) treatment markedly improved behavioral motor functions, restored lesion size, preserved motor neurons in the spinal tissue, reduced Bax expression and number of TUNEL-positive cells, and suppressed mRNA expression of pro-inflammatory cytokines including tumor necrosis factor-α, interleukin (IL)-1β, and IL-6. GRg3 also attenuated the over-production of cyclooxygenase-2 and inducible nitric oxide synthase after SCI. Moreover, GRg3 markedly suppressed microglial activation in the spinal tissue. In conclusion, GRg3 treatment led to a remarkable recovery of motor function and a reduction in spinal tissue damage by suppressing neuronal apoptosis and inflammatory responses after SCI. These results suggest that GRg3 may be a potential therapeutic agent for the treatment of SCI.
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Affiliation(s)
- Dong-Kyu Kim
- Department of East-West Medical Science, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17404, Korea.
| | - Ki-Jung Kweon
- Department of East-West Medical Science, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17404, Korea.
| | - Pyungsoo Kim
- Department of East-West Medical Science, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17404, Korea.
| | - Hee-Jung Kim
- Department of East-West Medical Science, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17404, Korea.
| | - Sung-Soo Kim
- Department of East-West Medical Science, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17404, Korea.
| | - Nak-Won Sohn
- Department of East-West Medical Science, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17404, Korea.
| | - Sungho Maeng
- Department of East-West Medical Science, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17404, Korea.
| | - Jung-Won Shin
- Department of East-West Medical Science, Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17404, Korea.
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Zhang ZH, Chi SM, Pan ZJ, Li ZW, Li YJ, Hu TF, Chen YM, Zhao Y. [Fluorescence Spectroscopic Studies on Binding of 20 (S)-Protopanaxatriol with Bovine Serum Albumin]. Guang Pu Xue Yu Guang Pu Fen Xi 2016; 36:3991-3995. [PMID: 30235507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The interaction between 20(S)-protopanaxatriol (PPT) and bovine serum albumin ( BSA) was studied with fluorescence quenching technique and ultra-violet absorption spectroscopy. The results indicated that PPT led to the intrinsic fluorescence quenching of BSA through a static quenching process .The binding constants of PPT with BSA obtained with fluorescence quenching method were calculated as 0.926 3×10(3) (298 K), 0.618 2×10(3) (308 K), 0.414 4×10(3) L·mol(-1)(318 K), respectively; while the number binding sites n were close to unity. The results showed that the driving force of the interaction between PPT and BSA was hydrogen bond and Van der Waals force. The result of synchronous fluorescence spectra showed that binding of PPT with BSA could induce conformational changes in BSA, that the part of tryptophan became more closely. According to Föster fluorescence resonance energy transfer theory, the binding distance r and energy-transfer efficiency E were respectively 26.2 nm and 0.32.
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40
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Pu Y, Zhang X, Zhang Q, Wang B, Chen Y, Zang C, Wang Y, Dong TTX, Zhang T. 20(S)-Protopanaxadiol Phospholipid Complex: Process Optimization, Characterization, In Vitro Dissolution and Molecular Docking Studies. Molecules 2016; 21:molecules21101396. [PMID: 27775578 PMCID: PMC6272886 DOI: 10.3390/molecules21101396] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Revised: 10/07/2016] [Accepted: 10/13/2016] [Indexed: 12/30/2022] Open
Abstract
20(S)-Protopanaxadiol (PPD), a bioactive compound extracted from ginseng, possesses cardioprotective, neuroprotective, anti-inflammatory, antiestrogenic, anticancer and anxiolytic effects. However, the clinical application of PPD is limited by its weak aqueous solubility. In this study, we optimized an efficient method of preparing its phospholipid complex (PPD-PLC) using a central composite design and response surface analysis. The prepared PPD-PLC was characterized by differential scanning calorimetric, powder X-ray diffraction, Fourier-transformed infrared spectroscopy and nuclear magnetic resonance analyses associated with molecular docking calculation. The equilibrium solubility of PPD-PLC in water and n-octanol increased 6.53- and 1.53-times, respectively. Afterwards, using PPD-PLC as the intermediate, the PPD-PLC-loaded dry suspension (PPD-PLC-SU) was prepared with our previous method. In vitro evaluations were conducted on PPD-PLC and PPD-PLC-SU, including dissolution behaviors and stability properties under different conditions. Results of in vitro dissolution behavior revealed the improved dissolution extents and rates of PPD-PLC and PPD-PLC-SU (p < 0.05). Results of the formulation stability investigation also exposed the better stability of PPD-PLC-SU compared with free PPD. Therefore, phospholipid complex technology is a useful formulation strategy for BCS II drugs, as it could effectively improve their hydrophilicity and lipophilicity.
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Affiliation(s)
- Yiqiong Pu
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong New District, Shanghai 201203, China.
| | - Xitong Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong New District, Shanghai 201203, China.
| | - Qi Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong New District, Shanghai 201203, China.
| | - Bing Wang
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong New District, Shanghai 201203, China.
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong New District, Shanghai 201203, China.
| | - Yuxi Chen
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong New District, Shanghai 201203, China.
| | - Chuanqi Zang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong New District, Shanghai 201203, China.
| | - Yuqin Wang
- Zhejiang BioAsia Institute of Life Science, No. 1938 Xinqun Road, Economic and Technical Development Zone, Pinghu 314200, China.
| | - Tina Ting-Xia Dong
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China.
| | - Tong Zhang
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong New District, Shanghai 201203, China.
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong New District, Shanghai 201203, China.
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Sidana J, Singh B, Sharma OP. Saponins of Agave: Chemistry and bioactivity. Phytochemistry 2016; 130:22-46. [PMID: 27374482 DOI: 10.1016/j.phytochem.2016.06.010] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 06/15/2016] [Accepted: 06/23/2016] [Indexed: 05/08/2023]
Abstract
The genus Agave comprises more than 400 species with geographical presence in the tropical and sub-tropical regions of the world. These plants have a rich history of folkloric use and are known for a wide spectrum of applications. Secondary metabolites of diverse chemical classes have been reported from Agave species. Owing to their pharmacological significance, the steroidal saponins of Agave have caught the attention of phytochemists, biologists and drug discovery scientists. The present review describes 141 steroidal saponins and sapogenins and covers the literature published from 1970 to 2015. It is a comprehensive and coherent presentation of the structures, methods of chemical profiling, structure elucidation and biological activities of the saponins and sapogenins reported from Agave. The article provides a perspective of the research on steroidal compounds of Agave.
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Affiliation(s)
- Jasmeen Sidana
- Natural Product Chemistry and Process Development Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176 061, Himachal Pradesh, India.
| | - Bikram Singh
- Natural Product Chemistry and Process Development Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176 061, Himachal Pradesh, India
| | - Om P Sharma
- Natural Product Chemistry and Process Development Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176 061, Himachal Pradesh, India
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42
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Takahashi N, Li W, Koike K. Oleanane-type triterpenoid saponins from Silene armeria. Phytochemistry 2016; 129:77-85. [PMID: 27460531 DOI: 10.1016/j.phytochem.2016.07.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 07/15/2016] [Accepted: 07/18/2016] [Indexed: 06/06/2023]
Abstract
Twelve triterpenoid saponins, including seven compounds (i.e., armerosides A-G) hitherto unknown, were isolated from whole plants of Silene armeria. Their structures were established based on extensive spectroscopic analyses and chemical methods. From a biosynthetic perspective, C-23 oxidation of the sapogenin appears to be a key factor in the glycosylation pathway.
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Affiliation(s)
- Nobuyuki Takahashi
- Faculty of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan
| | - Wei Li
- Faculty of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan.
| | - Kazuo Koike
- Faculty of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan
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Yang J, Li X, Sun T, Gao Y, Chen Y, Jin Y, Li Y. Semisynthesis and bioactive evaluation of oxidized products from 20(S)-ginsenoside Rg3, Rh2, protopanaxadiol (PPD) and their 20(R)-epimers as cytotoxic agents. Steroids 2016; 106:26-34. [PMID: 26703442 DOI: 10.1016/j.steroids.2015.12.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Revised: 11/23/2015] [Accepted: 12/14/2015] [Indexed: 11/24/2022]
Abstract
A series of oxidized products have been systematically semisynthesized from 20(S)-ginsenoside Rg3, Rh2, 20(S)-protopanaxadiol (PPD) and their 20(R)-epimers and the majority of these products were evaluated for their cytotoxic activity against HeLa cells and HepG2 cells by MTT assay for the first time. Twenty-two products were obtained and elucidated based on comprehensive (1)H NMR, (13)C NMR, two-dimensional (2D) NMR, and mass spectral data and the results reported in previous literature. All the four ocotillol type saponins (20S,24R(δ86, δ85); 20S,24S(δ87, δ88); 20R,24R(δ86, δ86); 20R,24S(δ86, δ87) were obtained. In addition, eight compounds (3, 8, 9, 10, 15, 16, 19 and 22) with the cyclized side chain were firstly identified. Most of the tested compounds possessed cytotoxicity to a certain degree against the two types of cells which implied these oxidized products could play a certain role on anti-cancer functions of the raw materials in vivo. Meanwhile, the results proved that the configurations at C-20 or C-24 and the number of glycosyl at C-3 have important influence on the cytotoxicity. The products 1, 2, 11-17, 20 and 22 should possess great activities and deserved further investigation as potential cytotoxic agents.
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Affiliation(s)
- Jie Yang
- College of Chemistry, Jilin University, Changchun 130021, PR China
| | - Xuwen Li
- College of Chemistry, Jilin University, Changchun 130021, PR China
| | - Ting Sun
- College of Chemistry, Jilin University, Changchun 130021, PR China
| | - Yan Gao
- College of Life Sciences, Jilin University, Changchun 130012, PR China
| | - Yanxin Chen
- College of Chemistry, Jilin University, Changchun 130021, PR China
| | - Yongri Jin
- College of Chemistry, Jilin University, Changchun 130021, PR China.
| | - Yang Li
- College of Life Sciences, Jilin University, Changchun 130012, PR China.
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Kim YB, Reed DW, Covello PS. Production of Triterpenoid Sapogenins in Hairy Root Cultures of Silene vulgaris. Nat Prod Commun 2015; 10:1919-1922. [PMID: 26749827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Abstract
Silene vulgaris (Moench) Garcke (Caryophyllaceae) is widely distributed in North America and contains bioactive oleanane-type saponins. In order to investigate in vitro production of triterpenoid saponins, hairy root cultures of S. vulgaris were established by infecting leaf explants with five strains of Agrobacterium rhizogenes (LBA9402, R1000, A4, 13333, and 15834). The A. rhizogenes strain LBA9402 had an infection of 100% frequency and induced the most hairy roots per plant. Methyl jasmonate (MeJA)-induced changes in triterpenoid saponins in S. vulgaris hairy roots were analyzed. Accumulation of segetalic acid and gypsogenic acid after MeJA treatment was 5-and 2-fold higher, respectively, than that of control root. We suggest that hairy root cultures of S. vulgaris could be an important alternative approach to the production of saponins.
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Chun JH, Adhikari PB, Park SB, Han JY, Choi YE. Production of the dammarene sapogenin (protopanaxadiol) in transgenic tobacco plants and cultured cells by heterologous expression of PgDDS and CYP716A47. Plant Cell Rep 2015; 34:1551-60. [PMID: 25981048 DOI: 10.1007/s00299-015-1806-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 04/21/2015] [Accepted: 05/06/2015] [Indexed: 06/04/2023]
Abstract
KEY MESSAGE Protopanaxadiol (PPD) is an aglycone of dammarene-type ginsenoside and has high medicinal values. In this work, we reported the PPD production in transgenic tobacco co-overexpressing PgDDS and CYP716A47. PPD is an aglycone of ginsenosides produced by Panax species and has a wide range of pharmacological activities. PPD is synthesized via the hydroxylation of dammarenediol-II (DD) by CYP716A47 enzyme. Here, we established a PPD production system via cell suspension culture of transgenic tobacco co-overexpressing the genes for PgDDS and CYP716A47. The concentration of PPD in transgenic tobacco leaves was 2.3-5.7 µg/g dry weight (DW), depending on the transgenic line. Leaf segments were cultured on medium with various types of hormones to induce callus. Auxin treatment, particularly 2,4-D, strongly enhanced the production of DD (783.8 µg g(-1) DW) and PPD (125.9 µg g(-1) DW). Treatment with 2,4-D enhanced the transcription of the HMG-Co reductase (HMGR) and squalene epoxidase genes. PPD production reached 166.9 and 980.9 µg g(-1) DW in a 250-ml shake flask culture and in 5-l airlift bioreactor culture, respectively.
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Affiliation(s)
- Ju-Hyeon Chun
- Department of Forest Resources, College of Forest and Environmental Sciences, Kangwon National University, Chunchon, 200-701, Republic of Korea
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Abstract
A recent report [1] about the epimerization of steroidal sapogenins at C-22 by treatment with BF3 · OEt2 is incorrect. We proved that the epimerization of sapogenins with BF3 · OEt2 occurs at C-25 as in the case of other acid-catalyzed reactions previously studied.
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Affiliation(s)
- Izabella Jastrzębska
- Institute of Chemistry, University of Białystok, Ciołkowskiego 1K, 15-245 Białystok, Poland
| | - Jacek W Morzycki
- Institute of Chemistry, University of Białystok, Ciołkowskiego 1K, 15-245 Białystok, Poland.
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Zheng Q, Li Z, Liu J, Han L, Zhang N, Zhang H, Chen J, Li P. Two new dammarane-type triterpene sapogenins from Chinese red ginseng. Nat Prod Res 2015; 30:95-9. [PMID: 26156746 DOI: 10.1080/14786419.2015.1038538] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 03/29/2015] [Indexed: 10/23/2022]
Abstract
Two new dammarane-type triterpene sapogenins were isolated from the Chinese red ginseng. The new sapogenins were named as 24,26-dihydroxy-panaxdiol (1) and 24-hydroxy-panaxdiol (2). Their structures were elucidated by the combined analysis of NMR and mass spectrometry as 20(S),25(R)-epoxydammarane-3β,12β,24β,26-tetraol (1) and 20(S),25-epoxydammarane-3β,12β,24α-triol (2). The complete signal assignments of the two compounds were carried out by 2D NMR spectral and NOE differential spectroscopy analysis.
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Affiliation(s)
- Qian Zheng
- a College of Pharmacy , Jilin University , 126 Xinmin Street, Chaoyang District, Changchun , Jilin CN 130021 , P.R. China
| | - Zhuo Li
- a College of Pharmacy , Jilin University , 126 Xinmin Street, Chaoyang District, Changchun , Jilin CN 130021 , P.R. China
| | - Jinping Liu
- a College of Pharmacy , Jilin University , 126 Xinmin Street, Chaoyang District, Changchun , Jilin CN 130021 , P.R. China
| | - Liu Han
- a College of Pharmacy , Jilin University , 126 Xinmin Street, Chaoyang District, Changchun , Jilin CN 130021 , P.R. China
| | - Nanqi Zhang
- a College of Pharmacy , Jilin University , 126 Xinmin Street, Chaoyang District, Changchun , Jilin CN 130021 , P.R. China
| | - Hao Zhang
- a College of Pharmacy , Jilin University , 126 Xinmin Street, Chaoyang District, Changchun , Jilin CN 130021 , P.R. China
| | - Jinluan Chen
- a College of Pharmacy , Jilin University , 126 Xinmin Street, Chaoyang District, Changchun , Jilin CN 130021 , P.R. China
| | - Pingya Li
- a College of Pharmacy , Jilin University , 126 Xinmin Street, Chaoyang District, Changchun , Jilin CN 130021 , P.R. China
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Ramos-Enríquez MA, Medina-Campos ON, Pedraza-Chaverri J, Iglesias-Arteaga MA. Synthesis and radical scavenger properties of novel spirochromenes derived from steroid sapogenins. Steroids 2015; 98:132-7. [PMID: 25824324 DOI: 10.1016/j.steroids.2015.03.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 03/10/2015] [Accepted: 03/20/2015] [Indexed: 11/23/2022]
Abstract
Tandem aldol condensation between steroid sapogenins and hydroxylated benzaldehydes afforded steroidal spirochromenes. Compounds that bear a phenolic hydroxyl group at position C-6', obtained by a reaction with 2,5-dihydroxybenzaldehyde, showed approximately 80% of maximal radical scavenging activity in the 1,1-diphenyl-2-picrylhydrazyl radical (DPPH) assay at 288 nM. In contrast, the starting steroid sapogenins and the spirochromenes without a phenolic group in the side chain proved to be inactive.
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Affiliation(s)
- Manuel A Ramos-Enríquez
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México, D.F., Mexico
| | - Omar N Medina-Campos
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México, D.F., Mexico
| | - José Pedraza-Chaverri
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México, D.F., Mexico
| | - Martín A Iglesias-Arteaga
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México, D.F., Mexico.
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Pettit GR, Moser BR, Herald DL, Knight JC, Chapuis JC, Zheng X. The Cephalostatins. 23. Conversion of Hecogenin to a Steroidal 1,6-Dioxaspiro[5.5]nonane Analogue for Cephalostatin 11. J Nat Prod 2015; 78:1067-1072. [PMID: 25915559 DOI: 10.1021/np501033u] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Cephalostatin 1 (1) has proved to be a remarkably potent cancer cell growth inhibitor. Since this steroidal alkaloid constituent of the marine worm Cephalodiscus gilchristi possesses a complex structure, providing preclinical supplies by total synthesis continues to be challenging. Therefore, syntheses of less complex structural modifications of this important pyrazine have also received substantial attention. Herein are summarized the synthesis of [5.5]spiroketal 5, a simplified right-side steroidal unit of 1, in seven steps from hecogenin acetate (11) with an overall yield of 4.6%. Consistent with other SAR studies, such reduction in structural complexity compared to 1 led to loss of cancer cell growth inhibitory activity against the P388 lymphocytic leukemia cell line.
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Affiliation(s)
- George R Pettit
- Department of Chemistry and Biochemistry, Arizona State University, P.O. Box 871604, Tempe, Arizona 85287-1604, United States
| | - Bryan R Moser
- Department of Chemistry and Biochemistry, Arizona State University, P.O. Box 871604, Tempe, Arizona 85287-1604, United States
| | - Delbert L Herald
- Department of Chemistry and Biochemistry, Arizona State University, P.O. Box 871604, Tempe, Arizona 85287-1604, United States
| | - John C Knight
- Department of Chemistry and Biochemistry, Arizona State University, P.O. Box 871604, Tempe, Arizona 85287-1604, United States
| | - Jean-Charles Chapuis
- Department of Chemistry and Biochemistry, Arizona State University, P.O. Box 871604, Tempe, Arizona 85287-1604, United States
| | - Xing Zheng
- Department of Chemistry and Biochemistry, Arizona State University, P.O. Box 871604, Tempe, Arizona 85287-1604, United States
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Paparella S, Tava A, Avato P, Biazzi E, Macovei A, Biggiogera M, Carbonera D, Balestrazzi A. Cell wall integrity, genotoxic injury and PCD dynamics in alfalfa saponin-treated white poplar cells highlight a complex link between molecule structure and activity. Phytochemistry 2015; 111:114-123. [PMID: 25660272 DOI: 10.1016/j.phytochem.2015.01.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 01/10/2015] [Accepted: 01/15/2015] [Indexed: 06/04/2023]
Abstract
In the present work, eleven saponins and three sapogenins purified from Medicago sativa were tested for their cytotoxicity against highly proliferating white poplar (Populus alba L.) cell suspension cultures. After preliminary screening, four saponins with different structural features in terms of aglycone moieties and sugar chains (saponin 3, a bidesmoside of hederagenin; saponins 4 and 5, monodesmoside and bidesmoside of medicagenic acid respectively, and saponin 10, a bidesmoside of zanhic acid) and different cytotoxicity were selected and used for further investigation on their structure-activity relationship. Transmission Electron Microscopy (TEM) analyses provided for the first time evidence of the effects exerted by saponins on plant cell wall integrity. Exposure to saponin 3 and saponin 10 resulted into disorganization of the outer wall layer and the effect was even more pronounced in white poplar cells treated with the two medicagenic acid derivatives, saponins 4 and 5. Oxidative burst and nitric oxide accumulation were common hallmarks of the response of white poplar cells to saponins. When DNA damage accumulation and DNA repair profiles were evaluated by Single Cell Gel Electrophoresis, induction of single and double strand breaks followed by effective repair was observed within 24h. The reported data are discussed in view of the current issues dealing with saponin structure-activity relationship.
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Affiliation(s)
- Stefania Paparella
- Dipartimento di Biologia e Biotecnologie 'L. Spallanzani', via Ferrata 1, 27100 Pavia, Italy.
| | - Aldo Tava
- Consiglio per la Ricerca e la Sperimentazione in Agricoltura - Centro di Ricerca per le Produzioni Foraggere e Lattiero-Casearie, viale Piacenza 29, 29600 Lodi, Italy.
| | - Pinarosa Avato
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari Aldo Moro, via Orabona 4, 70125 Bari, Italy.
| | - Elisa Biazzi
- Consiglio per la Ricerca e la Sperimentazione in Agricoltura - Centro di Ricerca per le Produzioni Foraggere e Lattiero-Casearie, viale Piacenza 29, 29600 Lodi, Italy.
| | - Anca Macovei
- Dipartimento di Biologia e Biotecnologie 'L. Spallanzani', via Ferrata 1, 27100 Pavia, Italy.
| | - Marco Biggiogera
- Dipartimento di Biologia e Biotecnologie 'L. Spallanzani', via Ferrata 1, 27100 Pavia, Italy.
| | - Daniela Carbonera
- Dipartimento di Biologia e Biotecnologie 'L. Spallanzani', via Ferrata 1, 27100 Pavia, Italy.
| | - Alma Balestrazzi
- Dipartimento di Biologia e Biotecnologie 'L. Spallanzani', via Ferrata 1, 27100 Pavia, Italy.
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