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Tembeni B, Idowu OE, Benrkia R, Boutahiri S, Olatunji OJ. Biotransformation of selected secondary metabolites by Alternaria species and the pharmaceutical, food and agricultural application of biotransformation products. NATURAL PRODUCTS AND BIOPROSPECTING 2024; 14:46. [PMID: 39158793 PMCID: PMC11333692 DOI: 10.1007/s13659-024-00469-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Accepted: 08/04/2024] [Indexed: 08/20/2024]
Abstract
Biotransformation is a process in which molecules are modified in the presence of a biocatalyst or enzymes, as well as the metabolic alterations that occur in organisms from exposure to the molecules. Microbial biotransformation is an important process in natural product drug discovery as novel compounds are biosynthesised. Additionally, biotransformation products offer compounds with improved efficacy, solubility, reduced cytotoxic and allows for the understanding of structure activity relationships. One of the driving forces for these impeccable findings are associated with the presence of cytochrome P450 monooxygenases that is present in all organisms such as mammals, bacteria, and fungi. Numerous fungal strains have been used and reported for their ability to biotransform different compounds. This review focused on studies using Alternaria species as biocatalysts in the biotransformation of natural product compounds. Alternaria species facilitates reactions that favour stereoselectivity, regioselectivity under mild conditions. Additionally, microbial biotransformation products, their application in food, pharmaceutical and agricultural sector is discussed in this review.
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Affiliation(s)
- Babalwa Tembeni
- African Genome Center, Mohammed VI Polytechnic University, Benguerir, Morocco.
| | | | - Rachid Benrkia
- African Genome Center, Mohammed VI Polytechnic University, Benguerir, Morocco
| | - Salima Boutahiri
- African Genome Center, Mohammed VI Polytechnic University, Benguerir, Morocco
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Shen P, Jiang X, Kuang Y, Wang W, Raj R, Wang W, Zhu Y, Zhang X, Yu B, Zhang J. Natural triterpenoid-aided identification of the druggable interface of HMGB1 occupied by TLR4. RSC Chem Biol 2024; 5:751-762. [PMID: 39092445 PMCID: PMC11289874 DOI: 10.1039/d4cb00062e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 06/04/2024] [Indexed: 08/04/2024] Open
Abstract
HMGB1 interacts with TLR4 to activate the inflammatory cascade response, contributing to the pathogenesis of endogenous tissue damage and infection. The immense importance of HMGB1-TLR4 interaction in the immune system has made its binding interface an area of significant interest. To map the binding interface of HMGB1 occupied by TLR4, triterpenoids that disrupt the HMGB1-TLR4 interaction and interfere with HMGB1-induced inflammation were developed. Using the unique triterpenoid PT-22 as a probe along with photoaffinity labeling and site-directed mutagenesis, we found that the binding interface of HMGB1 was responsible for the recognition of TLR4 located on the "L" shaped B-box with K114 as a crucial hot-spot residue. Amazingly, this highly conserved interaction surface overlapped with the antigen-recognition epitope of an anti-HMGB1 antibody. Our findings propose a novel strategy for better understanding the druggable interface of HMGB1 that interacts with TLR4 and provide insights for the rational design of HMGB1-TLR4 PPI inhibitors to fine tune immune responses.
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Affiliation(s)
- Pingping Shen
- Department of Resources Science of Traditional Chinese Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University Nanjing 210009 P. R. China +86-25-86185158 +86-25-86185157
| | - Xuewa Jiang
- Department of Resources Science of Traditional Chinese Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University Nanjing 210009 P. R. China +86-25-86185158 +86-25-86185157
| | - Yi Kuang
- Department of Resources Science of Traditional Chinese Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University Nanjing 210009 P. R. China +86-25-86185158 +86-25-86185157
| | - Weiwei Wang
- Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine Nanjing 210046 P. R. China
| | - Richa Raj
- Department of Resources Science of Traditional Chinese Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University Nanjing 210009 P. R. China +86-25-86185158 +86-25-86185157
| | - Wei Wang
- Department of Chemistry, College of Liberal Arts and Sciences, University of Illinois Chicago Chicago IL USA
| | - Yuyuan Zhu
- The Center for Chemical Biology, Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences Shanghai 201203 P. R. China
| | - Xiaochun Zhang
- School of Pharmaceutical Sciences, Tsinghua University Beijing 100084 P. R. China
| | - Boyang Yu
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University Nanjing 211198 P. R. China
| | - Jian Zhang
- Department of Resources Science of Traditional Chinese Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University Nanjing 210009 P. R. China +86-25-86185158 +86-25-86185157
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University Nanjing 211198 P. R. China
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Shen P, Jiang X, Zhang J, Wang J, Raj R, Li G, Ge H, Wang W, Yu B, Zhang J. Isolation and microbial transformation of tea sapogenin from seed pomace of Camellia oleifera with anti-inflammatory effects. Chin J Nat Med 2024; 22:280-288. [PMID: 38553195 DOI: 10.1016/s1875-5364(24)60598-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Indexed: 04/02/2024]
Abstract
In the current study, tea saponin, identified as the primary bioactive constituent in seed pomace of Camellia oleifera Abel., was meticulously extracted and hydrolyzed to yield five known sapogenins: 16-O-tiglogycamelliagnin B (a), camelliagnin A (b), 16-O-angeloybarringtogenol C (c), theasapogenol E (d), theasapogenol F (e). Subsequent biotransformation of compound a facilitated the isolation of six novel metabolites (a1-a6). The anti-inflammatory potential of these compounds was assessed using pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns molecules (DAMPs)-mediated cellular inflammation models. Notably, compounds b and a2 demonstrated significant inhibitory effects on both lipopolysaccharide (LPS) and high-mobility group box 1 (HMGB1)-induced inflammation, surpassing the efficacy of the standard anti-inflammatory agent, carbenoxolone. Conversely, compounds d, a3, and a6 selectivity targeted endogenous HMGB1-induced inflammation, showcasing a pronounced specificity. These results underscore the therapeutic promise of C. oleifera seed pomace-derived compounds as potent agents for the management of inflammatory diseases triggered by infections and tissue damage.
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Affiliation(s)
- Pingping Shen
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Xuewa Jiang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Jingling Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Jiayi Wang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Richa Raj
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Guolong Li
- Co-construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi & Education Ministry, Shaanxi Province Key Laboratory of New Drugs and Chinese Medicine Foundation Research, Shaanxi University of Chinese Medicine, Xianyang 712046, China
| | - Haixia Ge
- School of Life Sciences, Huzhou University, Huzhou 313000, China
| | - Weiwei Wang
- Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing 210046, China
| | - Boyang Yu
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing 211198, China
| | - Jian Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing 211198, China.
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Jiang X, Shen P, Zhou J, Ge H, Raj R, Wang W, Yu B, Zhang J. Microbial transformation and inhibitory effect assessment of uvaol derivates against LPS and HMGB1 induced NO production in RAW264.7 macrophages. Bioorg Med Chem Lett 2021; 58:128523. [PMID: 34973341 DOI: 10.1016/j.bmcl.2021.128523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/06/2021] [Accepted: 12/27/2021] [Indexed: 11/17/2022]
Abstract
For the discovery of new pentacyclic triterpenes as a potential anti-inflammatory agent, microbial transformation of uvaol by Penicilium griseofulvum CICC 40293 and Streptomyces griseus ATCC 13273 was investigated. Stereoselective hydroxylation and epoxidation reactions were observed in the biotransformation. Moreover, six new metabolites were isolated and structurally elucidated by HR-ESI-MS and NMR spectrum. All the compounds were evaluated upon the inhibitory effects of nitric oxide (NO) release in RAW 264.7 cells induced by lipopolysaccharide (LPS) and high-mobility group box 1 (HMGB1). Among them, compound 3 (13, 28-epoxy-3β, 7β, 21β-trihydroxy-urs-11-ene) with the unique epoxy structure and compound 5 (3β, 21β, 24, 28-tetrahydroxy-urs-12-en-30-oic acid), exhibited a considerable inhibitory effect on both models while compound 2 (urs-12-ene-3β, 7β, 21β, 28-tetraol) showed a significant bias in the LPS-induced inflammatory response with IC50 value of 2.22 μM. Therefore, this study could provide some insights on the discovery of the pentacyclic triterpene leads for the treatment of either DAMPs or PAMPs triggered inflammation.
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Affiliation(s)
- Xuewa Jiang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, Jiangsu, China
| | - Pingping Shen
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, Jiangsu, China
| | - Jing Zhou
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, Jiangsu, China
| | - Haixia Ge
- School of Life Sciences, Huzhou University, Huzhou 313000, PR China
| | - Richa Raj
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, Jiangsu, China
| | - Weiwei Wang
- Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
| | - Boyang Yu
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, Jiangsu, China
| | - Jian Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, Jiangsu, China; Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, Jiangsu, China; ZhenPing Expert Workstation for Zhang Jian, Zhenping, Ankang, Shaanxi, 725699, PR China.
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Fofana S, Ouédraogo M, Esposito RC, Ouedraogo WP, Delporte C, Van Antwerpen P, Mathieu V, Guissou IP. Systematic Review of Potential Anticancerous Activities of Erythrina senegalensis DC (Fabaceae). PLANTS (BASEL, SWITZERLAND) 2021; 11:plants11010019. [PMID: 35009024 PMCID: PMC8747466 DOI: 10.3390/plants11010019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/11/2021] [Accepted: 12/16/2021] [Indexed: 05/04/2023]
Abstract
The objective of this study was to carry out a systematic review of the substances isolated from the African medicinal plant Erythrina senegalensis, focusing on compounds harboring activities against cancer models detailed in depth herein at both in vitro and in vivo preclinical levels. The review was conducted through Pubmed and Google Scholar. Nineteen out of the forty-two secondary metabolites isolated to date from E. senegalensis displayed interesting in vitro and/or in vivo antitumor activities. They belonged to alkaloid (Erysodine), triterpenes (Erythrodiol, maniladiol, oleanolic acid), prenylated isoflavonoids (senegalensin, erysenegalensein E, erysenegalensein M, alpinumisoflavone, derrone, warangalone), flavonoids (erythrisenegalone, senegalensein, lupinifolin, carpachromene) and pterocarpans (erybraedine A, erybraedine C, phaseollin). Among the isoflavonoids called "erysenegalensein", only erysenealenseins E and M have been tested for their anticancerous properties and turned out to be cytotoxic. Although the stem bark is the most frequently used part of the plant, all pterocarpans were isolated from roots and all alkaloids from seeds. The mechanisms of action of its metabolites include apoptosis, pyroptosis, autophagy and mitophagy via the modulation of cytoplasmic proteins, miRNA and enzymes involved in critical pathways deregulated in cancer. Alpinumisoflavone and oleanolic acid were studied in a broad spectrum of cancer models both in vitro and in preclinical models in vivo with promising results. Other metabolites, including carpachromen, phaseollin, erybraedin A, erysenegalensein M and maniladiol need to be further investigated, as they display potent in vitro effects.
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Affiliation(s)
- Souleymane Fofana
- Laboratory of Drug Science, Higher Institute of Health Sciences (INSSA), Nazi BONI University, Bobo-Dioulasso P.O. Box 1091, Burkina Faso;
| | - Moussa Ouédraogo
- Laboratory of Drug Development (LADME), Training and Research Unit, Health Sciences, Joseph KI-ZERBO University, Ouagadougou P.O. Box 7021, Burkina Faso; (M.O.); (W.P.O.)
| | - Rafaèle Calvo Esposito
- Department of Pharmacotherapy and Pharmaceuticals, Faculty of Pharmacy, Université Libre de Bruxelles (ULB), 1050 Brussels, Belgium;
- Protein Chemistry Unit, Department of General Chemistry I, Faculty of Medicine, Université Libre de Bruxelles, 1070 Brussels, Belgium
| | - Windbedema Prisca Ouedraogo
- Laboratory of Drug Development (LADME), Training and Research Unit, Health Sciences, Joseph KI-ZERBO University, Ouagadougou P.O. Box 7021, Burkina Faso; (M.O.); (W.P.O.)
| | - Cédric Delporte
- RD3-Pharmacognosy, Bioanalysis and Drug Discovery Unit and Analytical Platform, Faculty of Pharmacy, Universite’ Libre de Bruxelles (ULB), 1050 Brussels, Belgium; (C.D.); (P.V.A.)
| | - Pierre Van Antwerpen
- RD3-Pharmacognosy, Bioanalysis and Drug Discovery Unit and Analytical Platform, Faculty of Pharmacy, Universite’ Libre de Bruxelles (ULB), 1050 Brussels, Belgium; (C.D.); (P.V.A.)
| | - Véronique Mathieu
- Department of Pharmacotherapy and Pharmaceuticals, Faculty of Pharmacy, Université Libre de Bruxelles (ULB), 1050 Brussels, Belgium;
- ULB Cancer Research Center, Université Libre de Bruxelles (ULB), 1050 Bruxelles, Belgium
- Correspondence: (V.M.); (I.P.G.); Tel.: +32-478-31-73-88 (V.M.)
| | - Innocent Pierre Guissou
- Faculty of Health Sciences, Saint Thomas d’Aquin University, Ouagadougou P.O. Box 10212, Burkina Faso
- Correspondence: (V.M.); (I.P.G.); Tel.: +32-478-31-73-88 (V.M.)
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Song KN, Lu YJ, Chu CJ, Wu YN, Huang HL, Fan BY, Chen GT. Biotransformation of Betulonic Acid by the Fungus Rhizopus arrhizus CGMCC 3.868 and Antineuroinflammatory Activity of the Biotransformation Products. JOURNAL OF NATURAL PRODUCTS 2021; 84:2664-2674. [PMID: 34546050 DOI: 10.1021/acs.jnatprod.1c00480] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Biotransformation of betulonic acid (1) by Rhizopus arrhizus CGMCC 3.868 resulted in the production of 16 new (3, 5, 6, and 9-21) and five known compounds. Structures of the new compounds were established by analysis of spectroscopic data. Hydroxylation, acetylation, oxygenation, glycosylation, and addition reactions involved the C-20-C-29 double bond. Antineuroinflammatory activities of the obtained compounds in NO production were tested in lipopolysaccharides-induced BV-2 cells. Compared with the substrate betulonic acid, biotransformation products 3, 8, 9, 14, and 21 exhibited an improved inhibitory effect, with IC50 values of 10.26, 11.09, 5.38, 1.55, and 4.69 μM, lower than that of the positive control, NG-monomethyl-l-arginine.
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Affiliation(s)
- Kai-Nan Song
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, People's Republic of China
| | - You-Jia Lu
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, People's Republic of China
| | - Cheng-Jiao Chu
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, People's Republic of China
| | - Yan-Ni Wu
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, People's Republic of China
| | - Hui-Lian Huang
- Key Laboratory of Modern Preparation of TCM, Jiangxi University of Traditional Chinese Medicine, 818 Xingwan Road, Nanchang, Jiangxi 330004, People's Republic of China
| | - Bo-Yi Fan
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, People's Republic of China
| | - Guang-Tong Chen
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, People's Republic of China
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Yi QQ, Wu ZH, Xu F, Wang HG. Chemical Constituents of Callicarpa giraldii and Their Anti-Inflammatory Activity. Nat Prod Commun 2021. [DOI: 10.1177/1934578x211051801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Callicarpa giraldii (family Verbenaceae) has many medical properties and is commonly used in traditional Chinese medicine. However, its chemical constituents have not been investigated. In this study, nine compounds present in the leaves and stems were isolated and characterized. These were negundonorin B (1), lupeol (2), erythrodiol (3), isoacteoside (4), forsythoside B (5), dibutyl phthalate (6), verbascoside (7), poliumoside (8), and 3-methoxy-4-hydroxybenzaldehyde (9). The structures were identified by comparison of their NMR data with those reported in the literature. The anti-inflammatory effects of compounds 1-6 were tested on lipopolysaccharide-stimulated RAW264.7 macrophages. Several compounds showed significant ( p < .05) inhibitory effects.
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Affiliation(s)
- Qiao-Qi Yi
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Zhong-Han Wu
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Fan Xu
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Hong-Gang Wang
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
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Zhou X, Shen P, Wang W, Zhou J, Raj R, Du Z, Xu S, Wang W, Yu B, Zhang J. Derivatization of Soyasapogenol A through Microbial Transformation for Potential Anti-inflammatory Food Supplements. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:6791-6798. [PMID: 34101468 DOI: 10.1021/acs.jafc.1c01569] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
For the optimum use of soyasaponins isolated from soybean cake and to explore the potential anti-inflammatory agents from pentacyclic triterpenes as natural food supplements, microbial transformation of soyasapogenol A was carried out. Four strains of microbes, including Bacillus megaterium CGMCC 1.1741, Penicillium griseofulvum CICC 40293, Bacillus subtilis ATCC 6633, and Streptomyces griseus ATCC 13273, showed robust catalytic capacity to the substrate. Preparative biotransformation and column chromatographic purification led to the isolation of 10 novel and 1 reported metabolites. The structure elucidation was performed using 1D/2D NMR and HR-ESI-MS analytical method. Several novel tailoring reactions, such as allyl oxidation, C-C double bond rearrangement, hydroxylation, dehydrogenation, and glycosylation, were observed in the biotransformation. In the follow-up bioassay, most of the metabolites exhibited low cytotoxicity and potent inhibitory activity against the production of nitric oxide (NO) in RAW 264.7 cells stimulated by lipopolysaccharide. Especially compound 6 (3-oxo-11α,21β,22β,24-tetrahydroxy-olean-12-ene) showed comparable activity to the positive control of quercetin with an IC50 value of 16.70 μM. These findings provided an experimental approach to achieve the derivatization of natural aglycons in soybeans through microbial transformation for developing potent anti-inflammatory food supplements.
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Affiliation(s)
- Xiaoyang Zhou
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Pingping Shen
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Wei Wang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Jing Zhou
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Richa Raj
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Zhichao Du
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Shaohua Xu
- College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, People's Republic of China
| | - Weiwei Wang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Boyang Yu
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing 211198, People's Republic of China
| | - Jian Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, People's Republic of China
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing 211198, People's Republic of China
- ZhenPing Expert Workstation for Zhang Jian, Zhenping, Ankang, Shaanxi 725699, People's Republic of China
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Du Z, Li G, Zhou X, Zhang J. Synthesis of MeON-Glycoside Derivatives of Oleanolic Acid by Neoglycosylation and Evaluation of Their Cytotoxicity Against Selected Cancer Cell Lines. Molecules 2021; 26:molecules26030772. [PMID: 33540945 PMCID: PMC7867353 DOI: 10.3390/molecules26030772] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 01/25/2021] [Accepted: 01/26/2021] [Indexed: 11/16/2022] Open
Abstract
A series of C-3 and C-28 MeON-neoglycosides of oleanolic acid were designed and synthesized by neoglycosylation as potential antiproliferative agents. Their cytotoxicity was evaluated in vitro against five human cancer cell lines: human non-small cell lung cancer cell line (A549), human melanoma cell line (A375), human colon cancer cell line (HCT116), human liver carcinoma cell line (HepG2), human breast adenocarcinoma cell line (MCF-7) by the Cell Counting Kit-8 (CCK-8) assay. Most of C-3 and C-28 MeON-neoglycosides of oleanolic acid exhibited notably inhibitory effects against the tested cancer cells and more sensitive to HepG2 cells than 5-Fluorouracil (5-FU). Structure-activities relationship (SAR) analysis revealed that sugar types and the d/l configuration of sugars would significantly affect their antiproliferative activities of neoglycosides. Among them, compound 8a (28-N-methoxyaminooleanane-β-d-glucoside) exhibited the most potent antiproliferative activities against HepG2 cells with IC50 values of 2.1 µM. Further pharmacological experiments revealed that compound 8a could cause morphological changes and cell cycle arrest at G0/G1 phase and induce apoptosis in HepG2 cells. These results suggested that neoglycosylation could provide a rapid strategy for the discovery of potential antiproliferative agents and their possible pharmacological mechanisms need more further research.
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Affiliation(s)
- Zhichao Du
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, Jiangsu, China; (Z.D.); (X.Z.)
| | - Guolong Li
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, Jiangsu, China;
| | - Xiaoyang Zhou
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, Jiangsu, China; (Z.D.); (X.Z.)
| | - Jian Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, Jiangsu, China; (Z.D.); (X.Z.)
- Zhenping Expert Workstation for Zhang Jian, Zhenping, Ankang 725699, Shaanxi, China
- Correspondence: ; Tel.: +86-25-86185157
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