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Yan R, Liu L, Huang X, Quan ZS, Shen QK, Guo HY. Bioactivities and Structure-Activity Relationships of Maslinic Acid Derivatives: A Review. Chem Biodivers 2024; 21:e202301327. [PMID: 38108648 DOI: 10.1002/cbdv.202301327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 12/04/2023] [Accepted: 12/15/2023] [Indexed: 12/19/2023]
Abstract
Maslinic acid has a variety of biological activities, such as anti-tumor, hypoglycemic, anti-inflammatory, and anti-parasitic. In order to enhance the biological activity of maslinic acid, scholars have carried out a lot of structural modifications, and found some more valuable maslinic acid derivatives. In this paper, the structural modification, biological activity, and structure-activity relationship of maslinic acid were reviewed, providing references for the development of maslinic acid.
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Affiliation(s)
- Rui Yan
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
| | - Luguang Liu
- Department of Gastrointestinal Surgery, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan, Shandong, P. R. China
| | - Xing Huang
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
| | - Zhe-Shan Quan
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
| | - Qing-Kun Shen
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
| | - Hong-Yan Guo
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
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2
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Grudzińska M, Stachnik B, Galanty A, Sołtys A, Podolak I. Progress in Antimelanoma Research of Natural Triterpenoids and Their Derivatives: Mechanisms of Action, Bioavailability Enhancement and Structure Modifications. Molecules 2023; 28:7763. [PMID: 38067491 PMCID: PMC10707933 DOI: 10.3390/molecules28237763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 11/17/2023] [Accepted: 11/23/2023] [Indexed: 12/18/2023] Open
Abstract
Melanoma is one of the most dangerous forms of skin cancer, characterized by early metastasis and rapid development. In search for effective treatment options, much attention is given to triterpenoids of plant origin, which are considered promising drug candidates due to their well described anticancer properties and relatively low toxicity. This paper comprehensively summarizes the antimelanoma potential of natural triterpenoids, that are also used as scaffolds for the development of more effective derivatives. These include betulin, betulinic acid, ursolic acid, maslinic acid, oleanolic acid, celastrol and lupeol. Some lesser-known triterpenoids that deserve attention in this context are 22β-hydroxytingenone, cucurbitacins, geoditin A and ganoderic acids. Recently described mechanisms of action are presented, together with the results of preclinical in vitro and in vivo studies, as well as the use of drug delivery systems and pharmaceutical technologies to improve the bioavailability of triterpenoids. This paper also reviews the most promising structural modifications, based on structure-activity observations. In conclusion, triterpenoids of plant origin and some of their semi-synthetic derivatives exert significant cytotoxic, antiproliferative and chemopreventive effects that can be beneficial for melanoma treatment. Recent data indicate that their poor solubility in water, and thus low bioavailability, can be overcome by complexing with cyclodextrins, or the use of nanoparticles and ethosomes, thus making these compounds promising antimelanoma drug candidates for further development.
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Affiliation(s)
- Marta Grudzińska
- Department of Pharmacognosy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (M.G.); (B.S.); (A.S.); (I.P.)
- Department of Food Chemistry and Nutrition, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
- Doctoral School of Medical and Health Sciences, Jagiellonian University Medical College, Łazarza 16, 31-530 Kraków, Poland
| | - Bogna Stachnik
- Department of Pharmacognosy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (M.G.); (B.S.); (A.S.); (I.P.)
| | - Agnieszka Galanty
- Department of Pharmacognosy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (M.G.); (B.S.); (A.S.); (I.P.)
| | - Agnieszka Sołtys
- Department of Pharmacognosy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (M.G.); (B.S.); (A.S.); (I.P.)
| | - Irma Podolak
- Department of Pharmacognosy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (M.G.); (B.S.); (A.S.); (I.P.)
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3
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Thamnium S, Laomeephol C, Pavasant P, Osathanon T, Tabata Y, Wang C, Luckanagul JA. Osteogenic induction of asiatic acid derivatives in human periodontal ligament stem cells. Sci Rep 2023; 13:14102. [PMID: 37644086 PMCID: PMC10465493 DOI: 10.1038/s41598-023-41388-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 08/25/2023] [Indexed: 08/31/2023] Open
Abstract
Asiatic acid (AA) and asiaticoside, pentacyclic triterpenoid compounds derived from Centella asiatica, are known for their biological effects in promoting type I collagen synthesis and inducing osteogenesis of stem cells. However, their applications in regenerative medicine are limited due to their low potency and poor aqueous solubility. This work aimed to evaluate the osteogenic induction activity of AA derivatives in human periodontal ligament stem cells (hPDLSCs) in vitro. Four compounds were synthesised, namely 501, 502, 503, and 506. AA was used as the control. The 502 exhibited low water solubility, while the 506 compound showed the highest. The cytotoxicity analysis demonstrated that 503 caused significant deterioration in cell viability, while other derivatives showed no harmful effect on hPDLSCs. The dimethyl aminopropyl amine derivative of AA, compound 506, demonstrated a relatively high potency in inducing osteogenic differentiation. An elevated mRNA expression of osteogenic-related genes, BMP2, WNT3A, ALP, OSX and IBSP was observed with 506. Additionally, the expression of BMP-2 protein was enhanced with increasing dose of 506, and the effect was pronounced when the Erk signalling molecule was inhibited. The 506 derivative was proposed for the promotion of osteogenic differentiation in hPDLSCs by upregulating BMP2 via the Erk signalling pathway. The 506 molecule showed promise in bone tissue regeneration.
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Affiliation(s)
- Sirikool Thamnium
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Chavee Laomeephol
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
- Center of Excellence in Biomaterial Engineering in Medical and Health, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Prasit Pavasant
- Center of Excellence in Regenerative Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
- Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Thanaphum Osathanon
- Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
- Dental Stem Cell Biology Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Yasuhiko Tabata
- Laboratory of Biomaterials, Institute for Life and Medical Sciences, Kyoto University, 53 Kawara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Chao Wang
- Chengdu Institute of Biology, Chinese Academy of Sciences, P.O. Box 416, Chengdu, 6100641, Sichuan, People's Republic of China
- School of Food and Bioengineering, Xihua University, Chengdu, 610039, People's Republic of China
| | - Jittima A Luckanagul
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand.
- Center of Excellence in Biomaterial Engineering in Medical and Health, Chulalongkorn University, Bangkok, 10330, Thailand.
- Center of Excellence in Plant-Produced Pharmaceuticals, Chulalongkorn University, Bangkok, 10330, Thailand.
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Heisig J, Heise NV, Hoenke S, Ströhl D, Csuk R. The Finally Rewarding Search for A Cytotoxic Isosteviol Derivative. Molecules 2023; 28:4951. [PMID: 37446613 DOI: 10.3390/molecules28134951] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/20/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
Acid hydrolysis of stevioside resulted in a 63% yield of isosteviol (1), which served as a starting material for the preparation of numerous amides. These compounds were tested for cytotoxic activity, employing a panel of human tumor cell lines, and almost all amides were found to be non-cytotoxic. Only the combination of isosteviol, a (homo)-piperazinyl spacer and rhodamine B or rhodamine 101 unit proved to be particularly suitable. These spacered rhodamine conjugates exhibited cytotoxic activity in the sub-micromolar concentration range. In this regard, the homopiperazinyl-spacered derivatives were found to be better than those compounds with piperazinyl spacers, and rhodamine 101 conjugates were more cytotoxic than rhodamine B hybrids.
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Affiliation(s)
- Julia Heisig
- Organic Chemistry, Martin-Luther University Halle-Wittenberg, Kurt-Mothes, Str. 2, D-06120 Halle (Saale), Germany
| | - Niels V Heise
- Organic Chemistry, Martin-Luther University Halle-Wittenberg, Kurt-Mothes, Str. 2, D-06120 Halle (Saale), Germany
| | - Sophie Hoenke
- Organic Chemistry, Martin-Luther University Halle-Wittenberg, Kurt-Mothes, Str. 2, D-06120 Halle (Saale), Germany
| | - Dieter Ströhl
- Organic Chemistry, Martin-Luther University Halle-Wittenberg, Kurt-Mothes, Str. 2, D-06120 Halle (Saale), Germany
| | - René Csuk
- Organic Chemistry, Martin-Luther University Halle-Wittenberg, Kurt-Mothes, Str. 2, D-06120 Halle (Saale), Germany
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5
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Asiatic acid as a leading structure for derivatives combining sub-nanomolar cytotoxicity, high selectivity, and the ability to overcome drug resistance in human preclinical tumor models. Eur J Med Chem 2023; 250:115189. [PMID: 36780832 DOI: 10.1016/j.ejmech.2023.115189] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 02/01/2023] [Accepted: 02/04/2023] [Indexed: 02/11/2023]
Abstract
Amides and rhodamine B conjugates of different pentacyclic triterpene acids have been shown outstanding cytotoxicity for human tumor cells. Starting from asiatic acid, a new rhodamine B hybrid has been synthesized, and its cytotoxic activity was investigated employing several human tumor cell lines (A375 (melanoma), HT29 (colorectal carcinoma), MCF7 (breast adenocarcinoma), A2780 (ovarian carcinoma), HeLa (cervical carcinoma), (NIH 3T3 (non-malignant murine fibroblasts). For these conjugates of this kind it has been established that the spacer attached to the carboxyl group at ring E governs the magnitude of the cytotoxicity. These asiatic acid - rhodamine B conjugates were highly cytotoxic for human tumor cell lines but also selective. For example, 7, an acetylated homopiperazinyl spacered rhodamine B conjugate, held an EC50 = 0.8 nM for A2780 ovarian carcinoma cells. Additional staining experiments showed the rhodamine B conjugates to act as mitocans and to effect apoptosis. In further tests using 3D spheroid models of colorectal- and mamma carcinoma, 7 demonstrated activity in the lower nanomolar range and the ability to overcome resistance to clinically used standard chemotherapeutic drugs. Therefore 7 induces cytotoxic effects leading to an equal response in the chemotherapy of both sensitive and resistant tumor models. Analyses of mitochondrial function and glycolysis and respiration derived ATP production confirmed compound 7 to act as mitocan but also revealed a rapid perturbation of the cellular energy metabolism as the primary mechanism of action, which is completely different to conventional chemotherapeutic drugs and thereby explains the ability of compound 7 to overcome chemotherapeutic drug resistance.
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Heise NV, Heisig J, Höhlich L, Hoenke S, Csuk R. Synthesis and cytotoxicity of diastereomeric benzylamides derived from maslinic acid, augustic acid and bredemolic acid. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2023.100805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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7
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Kozubek M, Denner TC, Eckert M, Hoenke S, Csuk R. On the influence of the rhodamine substituents onto the cytotoxicity of mitocanic maslinic acid rhodamine conjugates. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2022.100708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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8
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Hoenke S, Serbian I, Csuk R. A Malaprade cleavage, a McMurry ring closure and an intramolecular aldol contraction of maslinic acid’s ring A. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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9
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Ghosh A, Panda CK. Role of Pentacyclic Triterpenoid Acids in the Treatment of Bladder Cancer. Mini Rev Med Chem 2021; 22:1331-1340. [PMID: 34719363 DOI: 10.2174/1389557521666211022145052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 05/27/2021] [Accepted: 08/04/2021] [Indexed: 11/22/2022]
Abstract
Bladder cancer carries a poor prognosis and has proven resistance to chemotherapy. Pentacyclic Triterpenoid Acids (PTAs) are natural bioactive compounds that have a well-known impact on cancer research because of their cytotoxic and chemopreventive activities. This review focuses on bladder cancer which can no longer be successfully treated by DNA damaging drugs. Unlike most of the existing drugs against bladder cancer, PTAs are non-toxic to normal cells. Collecting findings from both in vitro and in vivo studies, it has been concluded that PTAs may serve as promising agents in future bladder cancer therapy. In this review, the roles of various PTAs in bladder cancer have been explored, and their mechanisms of action in the treatment of bladder cancer have been described. Specific PTAs have been shortlisted from each of the chief skeletons of pentacyclic triterpenoids, which could be effective against bladder cancer because of their mode of action. This review thereby throws light on the multi targets and mechanisms of PTAs, which are responsible for their selective anticancer effects and provides guidelines for further research and development of new natural antitumor compounds.
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Affiliation(s)
- Anindita Ghosh
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata. India
| | - Chinmay Kumar Panda
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata. India
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Yu L, Xie X, Cao X, Chen J, Chen G, Chen Y, Li G, Qin J, Peng F, Peng C. The Anticancer Potential of Maslinic Acid and Its Derivatives: A Review. Drug Des Devel Ther 2021; 15:3863-3879. [PMID: 34526766 PMCID: PMC8437384 DOI: 10.2147/dddt.s326328] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 08/14/2021] [Indexed: 12/25/2022] Open
Abstract
Cancer is still an insurmountable problem for humans and critically attacking human health. In recent years, natural products have gained increasing attention in the field of anti-tumor due to their extensive sources and minimal side effects. Maslinic acid (MA), a pentacyclic triterpene acid mainly derived from the olive tree (Olea europaea L.) has been confirmed to possess great anti-cancer effects. This paper reviewed the inhibitory effect of MA and its derivatives on lung cancer, colon cancer, ovarian cancer, gastric cancer, lymphatic, leukemia, breast cancer, pancreatic cancer, melanoma, prostate cancer, renal cell carcinoma, gallbladder cancer, and bladder cancer, among others. MA inhibited the proliferation of various tumor cells and showed lower IC50 values in melanoma 518A2 cells and gastric cancer MKN28 cells compared with other cell lines. A series of semi-synthetic derivatives obtained by modifying MA chemical structure have been shown to have high cytotoxicity to human tumor cell lines, but low cytotoxicity to non-malignant cells, which is conducive to developing its potential as a chemotherapeutic agent. These studies suggest that MA derivatives have broad prospects in the development of antitumor therapeutics in the future and warrant further study.
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Affiliation(s)
- Lei Yu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Xiaofang Xie
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Xiaoyu Cao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Junren Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Guanru Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Yan Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Gangmin Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Junyuan Qin
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Fu Peng
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, People’s Republic of China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
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Deng J, Wang H, Mu X, He X, Zhao F, Meng Q. Advances in Research on the Preparation and Biological Activity of Maslinic Acid. Mini Rev Med Chem 2021; 21:79-89. [PMID: 32703128 DOI: 10.2174/1389557520666200722134208] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 12/26/2019] [Accepted: 04/20/2020] [Indexed: 11/22/2022]
Abstract
Maslinic acid, a pentacyclic triterpene acid, is mainly isolated from olives. Maslinic acid and its derivatives exhibit a broad range of biological properties, such as anti-inflammatory, anticancer, anti-diabetic, antimicrobial, neuroprotective and hepatoprotective activities. In this minireview, the progress of research on maslinic acid with regard to its bioactivities, extraction, semisynthetic preparation and patents is reported. The relationships between the structure and the activity of maslinic acid and its derivatives are also discussed.
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Affiliation(s)
- Jianqiang Deng
- 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, 264005, China
| | - Huiyun Wang
- College of Pharmacy, Jining Medical University, Rizhao, 276826, China
| | - Xiaodong Mu
- 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, 264005, China
| | - Xiuting He
- 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, 264005, China
| | - Fenglan Zhao
- 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, 264005, China
| | - Qingguo Meng
- 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, 264005, China
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12
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Li B, Kuang Y, Yi Y, Qiao X, Liang L, Ye M. Chemical modifications of ergostane-type triterpenoids from Antrodia camphorata and their cytotoxic activities. Bioorg Med Chem Lett 2021; 43:128066. [PMID: 33915258 DOI: 10.1016/j.bmcl.2021.128066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 04/20/2021] [Accepted: 04/22/2021] [Indexed: 11/24/2022]
Abstract
In order to discover potential antitumor agents from natural products, chemical modifications of ergostane-type triterpenoids from Antrodia camphorata yielded ten new compounds. They include nine C-26 amide derivatives of antcin G (1) and a methyl antcin B (4) derivative with hydroxyamino groups at C-3 and C-7. Chemical structures of the new compounds were elucidated by NMR and MS analyses. Furthermore, cytotoxicities of the triterpenoid derivatives were evaluated using four human cancer cell lines (HL60, U251, SW480, and MCF-7). As a result, 1a, 1g, and 4a exhibited potent cytotoxic activities against HL60, U251, and SW480 with IC50 values of 0.7 ± 0.9, 2.9 ± 1.3, and 2.2 ± 0.6 μM, respectively. Molecular docking indicates that 1a, 1g, and 4a have strong binding affinity with DNA topoisomerase IIα (-9.3, -7.9, and -7.4 kcal/mol, respectively), and that they could be potent topoisomerase IIα inhibitors.
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Affiliation(s)
- Bin Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China
| | - Yi Kuang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Yang Yi
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Xue Qiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Lei Liang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China.
| | - Min Ye
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China.
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Hoenke S, Christoph MA, Friedrich S, Heise N, Brandes B, Deigner HP, Al-Harrasi A, Csuk R. The Presence of a Cyclohexyldiamine Moiety Confers Cytotoxicity to Pentacyclic Triterpenoids. Molecules 2021; 26:molecules26072102. [PMID: 33917636 PMCID: PMC8038856 DOI: 10.3390/molecules26072102] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 03/29/2021] [Accepted: 04/04/2021] [Indexed: 11/16/2022] Open
Abstract
Pentacyclic triterpenoids oleanolic acid, ursolic acid, betulinic acid, and platanic acid were acetylated and converted into several amides 9-31; the cytotoxicity of which has been determined in sulforhodamine B assays employing seral human tumor cell lines and nonmalignant fibroblasts. Thereby, a betulinic acid/trans-1,4-cyclohexyldiamine amide showed excellent cytotoxicity (for example, EC50 = 0.6 μM for HT29 colon adenocarcinoma cells).
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Affiliation(s)
- Sophie Hoenke
- Organic Chemistry, Martin–Luther University Halle–Wittenberg, Kurt–Mothes, Str. 2, D-06120 Halle (Saale), Germany; (S.H.); (M.A.C.); (S.F.); (N.H.); (B.B.)
| | - Martin A. Christoph
- Organic Chemistry, Martin–Luther University Halle–Wittenberg, Kurt–Mothes, Str. 2, D-06120 Halle (Saale), Germany; (S.H.); (M.A.C.); (S.F.); (N.H.); (B.B.)
| | - Sander Friedrich
- Organic Chemistry, Martin–Luther University Halle–Wittenberg, Kurt–Mothes, Str. 2, D-06120 Halle (Saale), Germany; (S.H.); (M.A.C.); (S.F.); (N.H.); (B.B.)
| | - Niels Heise
- Organic Chemistry, Martin–Luther University Halle–Wittenberg, Kurt–Mothes, Str. 2, D-06120 Halle (Saale), Germany; (S.H.); (M.A.C.); (S.F.); (N.H.); (B.B.)
| | - Benjamin Brandes
- Organic Chemistry, Martin–Luther University Halle–Wittenberg, Kurt–Mothes, Str. 2, D-06120 Halle (Saale), Germany; (S.H.); (M.A.C.); (S.F.); (N.H.); (B.B.)
| | - Hans-Peter Deigner
- Institute of Precision Medicine, Medical and Life Science Faculty, Furtwangen University, Jakob–Kienzle–Str. 17, D-78054 Villigen–Schwenningen, Germany;
| | - Ahmed Al-Harrasi
- Chair of Oman’s Medicinal Plants and Marine Natural Products, University of Nizwa, P.O. Box 33, Birkat Al-Mauz, PC 616 Nizwa, Oman;
| | - René Csuk
- Organic Chemistry, Martin–Luther University Halle–Wittenberg, Kurt–Mothes, Str. 2, D-06120 Halle (Saale), Germany; (S.H.); (M.A.C.); (S.F.); (N.H.); (B.B.)
- Correspondence: ; Tel.: +49-345-5525660
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14
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Tolufashe GF, Lawal MM, Govender KK, Shode FO, Singh T. Exploring the bioactivity of pentacyclic triterpenoids as potential antimycobacterial nutraceutics: Insights through comparative biomolecular modelling. J Mol Graph Model 2021; 105:107900. [PMID: 33780786 DOI: 10.1016/j.jmgm.2021.107900] [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: 10/28/2020] [Revised: 02/26/2021] [Accepted: 03/09/2021] [Indexed: 11/19/2022]
Abstract
A group of bioactive compounds known as triterpenoids, which are often found in plant materials, have been tested to possess nutritional and pharmaceutical activity. These plant components are referred to as nutraceuticals, and are used as therapeutic agents. In this study, we explore the interactions of betulinic acid (BA), oleanolic acid (OA), ursolic acid (UA), and maslinic acid (MA) against FadA5. Studies have identified FadA5, a trifunctional enzyme-like thiolase, as a target towards Mycobacterium tuberculosis inhibition. The investigation involves molecular dynamics (MD) and hybrid quantum mechanics/molecular mechanics (QM/MM) applications. Analyses of the four pentacyclic triterpenoids binding to FadA5 showed appreciable bioactivity against FadA5. The application of two or more theoretical models to unravel ligand-enzyme binding energies can pave the way for accurate binding affinity prediction and validation.
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Affiliation(s)
- Gideon F Tolufashe
- Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal.
| | - Monsurat M Lawal
- School of Chemistry and Physics University of Kwazulu-Natal Private Bag X54001, Durban, 4000, South Africa.
| | - Krishna K Govender
- Department of Chemical Sciences, University of Johannesburg, P. O. Box 17011, Doornfontein Campus, 2028, Johannesburg, South Africa; Council for Scientific and Industrial Research, National Integrated Cyber Infrastructure, Centre for High Performance Computing, 15 Lower Hope Road, Rosebank, Cape Town, 7700, South Africa.
| | - Francis O Shode
- Department of Biotechnology and Food Technology, Durban University of Technology Durban 4001, South Africa.
| | - Thishana Singh
- School of Chemistry and Physics University of Kwazulu-Natal Private Bag X54001, Durban, 4000, South Africa.
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15
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Khwaza V, Oyedeji OO, Aderibigbe BA, Morifi E, Fonkui YT, Ndinteh DT, Steenkamp V. Synthesis, antibacterial, and cytotoxicity evaluation of oleanolic acid-4-aminoquinoline based hybrid compounds. ACTA ACUST UNITED AC 2021; 16:122-136. [PMID: 33568035 DOI: 10.2174/1574891x16666210210165547] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 01/11/2021] [Accepted: 02/01/2021] [Indexed: 11/22/2022]
Abstract
AIM To prepare a class of oleanolic-based compounds. BACKGROUND Conventional drugs used to treat infectious diseases suffer from limitations such as drug toxicity and drug resistance. The resistance of microbes to antimicrobial agents is a significant challenge in treating microbial infections. Combining two or more drugs with different modes of action to treat microbial infections results in a delay in developing drug resistance by the microbes. However, it is challenging to select the appropriate choice of drugs for combination therapy due to the differences in stability and pharmacokinetic profile of the drugs.Therefore, developing hybrid compounds using the existing drugs is a promising approach to design effective antimicrobial agents. OBJECTIVES To prepare oleanolic-based hybrid compounds followed by characterization, in vitro antibacterial, and cytotoxicity evaluation. METHODS Oleanolic acid-4-aminoquinoline-based hybrid compounds weresynthesized via esterification and amidation. The compounds werecharacterized using FTIR, NMR, and UHPLC-HRMS. Oleanolic acid was isolated from the flower buds of Syszygium aromaticum (L.) Merr. & L.M.Perry, a specie from Kingdom Plantae, order Mytales in Myrtaceae family. Their antibacterial and cytotoxicity activity was determined against selected strains of bacteria assessed using the microdilution assay and sulforhodamine B assay against selected cancer cell lines. RESULTS The synthesized hybrid compounds exhibited significant antibacterial activity against the Gram-positive bacteria Enterococcus faecalis (ATCC13047), Bacillus subtilis (ATCC19659), Staphylococcus aureus as well as Gram-negative bacteria,Klebsiella oxytoca (ATCC8724), Escherischia coli (ATCC25922), and Proteus vulgaris (ATCC6380)with minimum inhibitory concentrations of 1.25 mg/mLcompared to oleanolic acid (2.5 mg/mL). Compounds 13 and 14 displayed significant cytotoxic effectsin vitro against the cancer cell lines (MCF-7 and DU 145) compared to the oleanolic acid (IC50 ˃ 200 µM). CONCLUSION The present study revealed that the modification of C28 of OA enhanced its biological properties.
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Affiliation(s)
- Vuyolwethu Khwaza
- Department of Chemistry, University of Fort Hare, Alice Campus, Alice, Eastern Cape. South Africa
| | - Opeoluwa O Oyedeji
- Department of Chemistry, University of Fort Hare, Alice Campus, Alice, Eastern Cape. South Africa
| | - Blessing A Aderibigbe
- Department of Chemistry, University of Fort Hare, Alice Campus, Alice, Eastern Cape. South Africa
| | - Eric Morifi
- School of Chemistry, Mass Spectrometry division, University of Witwatersrand, Johannesburg. South Africa
| | - Y T Fonkui
- Department of Biotechnology and Food Technology, University of Johannesburg, Doornfontein Campus, Johannesburg. South Africa
| | - D T Ndinteh
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, Johannesburg. South Africa
| | - V Steenkamp
- Department of Pharmacology, Faculty of Health Sciences, University of Pretoria. South Africa
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16
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Brandes B, Koch L, Hoenke S, Deigner HP, Csuk R. The presence of a cationic center is not alone decisive for the cytotoxicity of triterpene carboxylic acid amides. Steroids 2020; 163:108713. [PMID: 32795453 DOI: 10.1016/j.steroids.2020.108713] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 07/26/2020] [Accepted: 08/08/2020] [Indexed: 12/14/2022]
Abstract
3-O-Acetyl-ursolic acid (2) and 3-O-acetyl oleanolic acid (8) were converted into piperazinylamides holding a distal NH, NMe or a NMe2 group. These compounds as well as the corresponding N-methyl-N-oxides were accessed. Their cytotoxicity was assessed in SRB assays employing a panel of human tumor cell lines and non-malignant fibroblasts (NIH 3T3). As a result, compounds holding a quaternary distal N-substituent were less cytotoxic that those holding a NH-moiety. Hence, the presence of a distal cationic center seems not to be a sufficient criterion for obtaining triterpenoids of high cytotoxicity and selectivity.
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Affiliation(s)
- Benjamin Brandes
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany
| | - Lukas Koch
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany
| | - Sophie Hoenke
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany
| | - Hans-Peter Deigner
- Furtwangen University, Medical and Life Sciences Faculty, Jakob-Kienzle Str. 17, D-78054 Villingen-Schwenningen, Germany
| | - René Csuk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany
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17
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Cytotoxic triterpenoid-safirinium conjugates target the endoplasmic reticulum. Eur J Med Chem 2020; 209:112920. [PMID: 33049606 DOI: 10.1016/j.ejmech.2020.112920] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 10/04/2020] [Accepted: 10/04/2020] [Indexed: 11/23/2022]
Abstract
Safirinium P and Q fluorescence labels were synthesized and conjugated with spacered triterpenoic acids to access hybrid structures. While the parent safirinium compounds were not cytotoxic at all, many triterpenoid safirinium P and Q conjugates showed moderate cytotoxicity. An exception, however, was safirinium P derived compound 30 holding low EC50 = 5.4 μM (for A375 cells) to EC50 = 7.5 μM (for FaDu cells) as well as EC50 = 6.6 μM for non-malignant fibroblasts NIH 3T3. Fluorescence imaging showed that the safirinium core structures cannot enter the cells (not even after a prolonged incubation time of 24 h), while the conjugates (as exemplified for 30) are accumulating in the endoplasmic reticulum but not in the mitochondria. The development of safirinium-hybrids targeting the endoplasmic reticulum can be regarded as a promising strategy in the development of cytotoxic agents.
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18
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Reynard G, Joseph-Valcin EM, Lebel H. Protecting-group-free synthesis of hydroxyesters from amino alcohols. Chem Commun (Camb) 2020; 56:10938-10941. [PMID: 32797120 DOI: 10.1039/d0cc03242e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The synthesis of hydroxyesters from carboxylic acids and unprotected amino alcohols in both continuous flow and batch processes is reported. The formation of a transient diazonium species with a dinitrite reagent is key in this transformation. The reaction conditions are compatible with a variety of functional groups.
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Affiliation(s)
- Guillaume Reynard
- Department of Chemistry and Centre in Green Chemistry and Catalysis (CGCC), Université de Montréal, Montréal, Qc H3C 3J7, Canada.
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19
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Serbian I, Siewert B, Al-Harrasi A, Csuk R. 2-O-(2-chlorobenzoyl) maslinic acid triggers apoptosis in A2780 human ovarian carcinoma cells. Eur J Med Chem 2019; 180:457-464. [DOI: 10.1016/j.ejmech.2019.07.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 06/28/2019] [Accepted: 07/15/2019] [Indexed: 02/08/2023]
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20
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Design, synthesis, anti-inflammatory, cytotoxic and cell based studies of some novel side chain analogues of myrrhanones A & B isolated from the gum resin of Commiphora mukul. Bioorg Chem 2019; 82:306-323. [DOI: 10.1016/j.bioorg.2018.10.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 08/31/2018] [Accepted: 10/21/2018] [Indexed: 11/20/2022]
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21
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Valdeira ASC, Ritt DA, Morrison DK, McMahon JB, Gustafson KR, Salvador JAR. Synthesis and Biological Evaluation of New Madecassic Acid Derivatives Targeting ERK Cascade Signaling. Front Chem 2018; 6:434. [PMID: 30324102 PMCID: PMC6172662 DOI: 10.3389/fchem.2018.00434] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 09/03/2018] [Indexed: 01/29/2023] Open
Abstract
In the present study, a series of novel madecassic acid derivatives was synthesized and screened against the National Cancer Institute's 60 human cancer cell line panel. Among them, compounds 5, 12, and 17 displayed potent and highly differential antiproliferative activity against 80% of the tumor cells harboring the B-RafV600E mutation within the nanomolar range. Structure-activity analysis revealed that a 5-membered A ring containing an α,β-unsaturated aldehyde substituted at C-23 with a 2-furoyl group seems to be crucial to produce this particular growth inhibition signature. In silico analysis of the cytotoxicity pattern of these compounds identified two highly correlated clinically approved drugs with known B-RafV600E inhibitory activity. Follow-up analysis revealed inhibition of the ERK signaling pathway through the reduction of cellular Raf protein levels is a key mechanism of action of these compounds. In particular, 17 was the most potent compound in suppressing tumor growth of B-RafV600E-mutant cell lines and displayed the highest reduction of Raf protein levels among the tested compounds. Taken together, this study revealed that modifications of madecassic acid structure can provide molecules with potent anticancer activity against cell lines harboring the clinically relevant B-RafV600E mutation, with compound 17 identified as a promising lead for the development of new anticancer drugs.
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Affiliation(s)
- Ana S C Valdeira
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal.,Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Daniel A Ritt
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research, National Cancer Institute, Frederick, MD, United States
| | - Deborah K Morrison
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research, National Cancer Institute, Frederick, MD, United States
| | - James B McMahon
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, MD, United States
| | - Kirk R Gustafson
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, MD, United States
| | - Jorge A R Salvador
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal.,Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
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22
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Wiemann J, Heller L, Csuk R. An access to a library of novel triterpene derivatives with a promising pharmacological potential by Ugi and Passerini multicomponent reactions. Eur J Med Chem 2018. [DOI: 10.1016/j.ejmech.2018.02.060] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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23
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Medina-O’Donnell M, Rivas F, Reyes-Zurita FJ, Martinez A, Lupiañez JA, Parra A. Diamine and PEGylated-diamine conjugates of triterpenic acids as potential anticancer agents. Eur J Med Chem 2018; 148:325-336. [DOI: 10.1016/j.ejmech.2018.02.044] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 12/21/2017] [Accepted: 02/13/2018] [Indexed: 02/06/2023]
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24
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Salvador JA, Leal AS, Valdeira AS, Gonçalves BM, Alho DP, Figueiredo SA, Silvestre SM, Mendes VI. Oleanane-, ursane-, and quinone methide friedelane-type triterpenoid derivatives: Recent advances in cancer treatment. Eur J Med Chem 2017; 142:95-130. [DOI: 10.1016/j.ejmech.2017.07.013] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 07/06/2017] [Accepted: 07/10/2017] [Indexed: 12/11/2022]
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25
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Eignerova B, Tichy M, Krasulova J, Kvasnica M, Rarova L, Christova R, Urban M, Bednarczyk-Cwynar B, Hajduch M, Sarek J. Synthesis and antiproliferative properties of new hydrophilic esters of triterpenic acids. Eur J Med Chem 2017; 140:403-420. [PMID: 28987603 DOI: 10.1016/j.ejmech.2017.09.041] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 09/18/2017] [Accepted: 09/20/2017] [Indexed: 11/17/2022]
Abstract
To improve the properties of cytotoxic triterpenoid acids 1-5, a large set of hydrophilic esters was synthesized. We choose betulinic acid (1), dihydrobetulinic acid (2), 21-oxoacid 3 along with highly active des-E lupane acids 4 and 5 as a model set of compounds for esterification of which the properties needed to be improved. As ester moieties were used - methoxyethanol and 2-(2-methoxyethoxy)ethanol and glycolic unit (type a-d), pyrrolidinoethanol, piperidinoethanol and morpholinoethanol (type f-h), and monosaccharide groups (type i-l). As a result, 56 triterpenic esters (49 new compounds) were obtained and their cytotoxicity on four cancer cell lines and normal human fibroblasts was tested. All new compounds were fully soluble at all tested concentrations, which used to be a problem of the parent compounds 1 and 2. 16 compounds had IC50 < 10 μM on at least one cancer cell line, 12 compounds had cytotoxicity of <10 μM against at least three of four tested cancer cell lines. The highest activity was found for compound 3c (1.8 μM on MCF7, 2.8 μM on HeLa, and 1.6 μM on G-361 cells) which also had no toxicity on non-cancerous BJ fibroblasts at the highest tested concentration (50 μM). High selective cytotoxicity was also found in compounds 1k, 2k, 3c, and 3i that are ideal candidates for drug development. Therefore, more studies to identify the mechanism of action were performed in case of 1k, 3c, and 3g such as effects on cell cycle and apoptosis. It was found that compounds 3c and 3g can induce apoptosis via caspase-3 activation and modulation of protein Bcl-2 in G-361 cells. In conclusion, compounds 1k, 3c, and 3g show high and selective cytotoxicity, therefore they are significantly better candidates for anti-cancer drug development than the parent acids 1-5.
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Affiliation(s)
- Barbara Eignerova
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo n. 2, 16610 Prague 6, Czech Republic
| | - Michal Tichy
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo n. 2, 16610 Prague 6, Czech Republic
| | - Jana Krasulova
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo n. 2, 16610 Prague 6, Czech Republic
| | - Miroslav Kvasnica
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Institute of Experimental Botany ASCR & Palacky University, Šlechtitelů 27, 78371 Olomouc, Czech Republic
| | - Lucie Rarova
- Department of Chemical Biology and Genetics, Centre of the Region Hana for Biotechnological and Agricultural Research, Palacky University, Šlechtitelů 27, 78371 Olomouc, Czech Republic
| | - Romana Christova
- Department of Chemical Biology and Genetics, Centre of the Region Hana for Biotechnological and Agricultural Research, Palacky University, Šlechtitelů 27, 78371 Olomouc, Czech Republic
| | - Milan Urban
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 5, 779 00, Olomouc, Czech Republic
| | - Barbara Bednarczyk-Cwynar
- Department of Organic Chemistry, Faculty of Pharmacy, Poznan University of Medical Science, Grunvaldzka Str. No. 6, 60-780 Poznań, Poland
| | - Marian Hajduch
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 5, 779 00, Olomouc, Czech Republic
| | - Jan Sarek
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 5, 779 00, Olomouc, Czech Republic.
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26
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Natural abenquines and synthetic analogues: Preliminary exploration of their cytotoxic activity. Bioorg Med Chem Lett 2017; 27:1141-1144. [DOI: 10.1016/j.bmcl.2017.01.079] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 01/24/2017] [Accepted: 01/25/2017] [Indexed: 11/23/2022]
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27
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Rhodamine B conjugates of triterpenoic acids are cytotoxic mitocans even at nanomolar concentrations. Eur J Med Chem 2016; 127:1-9. [PMID: 28033541 DOI: 10.1016/j.ejmech.2016.12.040] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 12/19/2016] [Accepted: 12/20/2016] [Indexed: 11/23/2022]
Abstract
Triterpenoic acids 1-6 exhibited very low or no cytotoxicity at all, but their corresponding 2,3-di-O-acetyl-piperazinyl amides 13-18 showed low EC50 values for several human tumor cell lines. Their cytotoxicity, however, was also high for the non-malignant mouse fibroblasts NIH 3T3. A significant improvement was achieved by preparing the rhodamine B derivatives 19-24. While rhodamine B is not cytotoxic (up to a concentration of 30μM - cut-off of the assay), the triterpenoid piperazine-spacered rhodamine B derivatives were cytotoxic in nano-molar concentration. Compound 24 (a diacetylated maslinic acid derivative) was most toxic for several human tumor cell lines but less toxic for mouse fibroblasts NIH 3T3. Staining and double-staining experiments revealed 24 to act as a mitocan.
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28
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Sommerwerk S, Heller L, Kuhfs J, Csuk R. Urea derivates of ursolic, oleanolic and maslinic acid induce apoptosis and are selective cytotoxic for several human tumor cell lines. Eur J Med Chem 2016; 119:1-16. [PMID: 27149037 DOI: 10.1016/j.ejmech.2016.04.051] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 04/19/2016] [Accepted: 04/20/2016] [Indexed: 01/01/2023]
Abstract
2,3-Di-O-acetyl-maslinic acid benzylamide (5) has previously been shown to possess high cytotoxicity for a variety of human tumor cell lines while being of low cytotoxicity to non-malignant cells. Structural modifications performed on 5 revealed that the presence of these acetyl groups in 5 and the presence of (2β,3β)-configurated centers seems necessary for obtaining high cytotoxicity combined with best selectivity between malignant cells and non-malignant mouse fibroblasts. Compounds carrying an ursane skeleton showed weaker cytotoxicity than their oleanane derived analogs. In addition, the benzylamide function in compound 5 should be replaced by a phenylurea moiety to gain better cytotoxicity while retaining and improving the selectivity. Thus, maslinic acid derived N-[2β,3β-di-O-acetyl-17β-amino-28-norolean-12-en-17-yl]phenylurea (45) gave best results showing EC50 = 0.9 μM (for A2780 ovarian cancer cells) with EC50 > 120 μM for fibroblasts (NIH 3T3) and triggered apoptosis while caspase-3 was not activated by this compound.
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Affiliation(s)
- Sven Sommerwerk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str.2, D-06120, Halle, Saale, Germany
| | - Lucie Heller
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str.2, D-06120, Halle, Saale, Germany
| | - Julia Kuhfs
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str.2, D-06120, Halle, Saale, Germany
| | - René Csuk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str.2, D-06120, Halle, Saale, Germany.
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29
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Novel hederagenin–triazolyl derivatives as potential anti-cancer agents. Eur J Med Chem 2016; 115:257-67. [DOI: 10.1016/j.ejmech.2016.03.018] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 03/04/2016] [Accepted: 03/05/2016] [Indexed: 11/22/2022]
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30
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Gonçalves BMF, Salvador JAR, Marín S, Cascante M. Synthesis and anticancer activity of novel fluorinated asiatic acid derivatives. Eur J Med Chem 2016; 114:101-17. [PMID: 26974379 DOI: 10.1016/j.ejmech.2016.02.057] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 01/26/2016] [Accepted: 02/24/2016] [Indexed: 01/04/2023]
Abstract
A series of novel fluorinated Asiatic Acid (AA) derivatives were successfully synthesized, tested for their antiproliferative activity against HeLa and HT-29 cell lines, and their structure activity relationships were evaluated. The great majority of fluorinated derivatives showed stronger antiproliferative activity than AA in a concentration dependent manner. The most active compounds have a pentameric A-ring containing an α,β-unsaturated carbonyl group. The compounds with better cytotoxic activity were then evaluated against MCF-7, Jurkat, PC-3, A375, MIA PaCa-2 and BJ cell lines. Derivative 14 proved to be the most active compound among all tested derivatives and its mechanism of action was further investigated in HeLa cell line. The results showed that compound 14 induced cell cycle arrest in G0/G1 stage as a consequence of up-regulation of p21(cip1/waf1) and p27(kip1) and down-regulation of cyclin D3 and Cyclin E. Furthermore, compound 14 was found to induce caspase driven-apoptosis with activation of caspases-8 and caspase-3 and the cleavage of PARP. The cleavage of Bid into t-Bid, the up-regulation of Bax and the down-regulation of Bcl-2 were also observed after treatment of HeLa cells with compound 14. Taken together, these mechanistic studies revealed the involvement of extrinsic and intrinsic pathways in the apoptotic process induced by compound 14. Importantly, the antiproliferative activity of this compound on the non-tumor BJ human fibroblast cell line is weaker than in the tested cancer cell lines. The enhanced potency (between 45 and 90-fold more active than AA in a panel of cancer cell lines) and selectivity of this new AA derivative warrant further preclinical evaluation.
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Affiliation(s)
- Bruno M F Gonçalves
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Coimbra, 3000-548, Coimbra, Portugal; Center for Neuroscience and Cell Biology, Coimbra, Portugal
| | - Jorge A R Salvador
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Coimbra, 3000-548, Coimbra, Portugal; Center for Neuroscience and Cell Biology, Coimbra, Portugal.
| | - Silvia Marín
- Department of Biochemistry and Molecular Biology, Faculty of Biology, Institute of Biomedicine of University of Barcelona, Diagonal 643, 08028 Barcelona, Spain; Institute of Biomedicine of University of Barcelona (IBUB) and Associated Unit to CSIC, Barcelona, Spain
| | - Marta Cascante
- Department of Biochemistry and Molecular Biology, Faculty of Biology, Institute of Biomedicine of University of Barcelona, Diagonal 643, 08028 Barcelona, Spain; Institute of Biomedicine of University of Barcelona (IBUB) and Associated Unit to CSIC, Barcelona, Spain.
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31
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Gonçalves BMF, Salvador JAR, Marín S, Cascante M. Synthesis and biological evaluation of novel asiatic acid derivatives with anticancer activity. RSC Adv 2016. [DOI: 10.1039/c5ra19120c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Structural modification of asiatic acid afforded derivatives with improved anticancer activity.
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Affiliation(s)
- Bruno M. F. Gonçalves
- Laboratory of Pharmaceutical Chemistry
- Faculty of Pharmacy
- University of Coimbra
- Coimbra
- Portugal
| | - Jorge A. R. Salvador
- Laboratory of Pharmaceutical Chemistry
- Faculty of Pharmacy
- University of Coimbra
- Coimbra
- Portugal
| | - Silvia Marín
- Department of Biochemistry and Molecular Biology
- Faculty of Biology
- University of Barcelona
- 08028 Barcelona
- Spain
| | - Marta Cascante
- Department of Biochemistry and Molecular Biology
- Faculty of Biology
- University of Barcelona
- 08028 Barcelona
- Spain
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Heller L, Sommerwerk S, Tzschöckell F, Wiemann J, Schwarz S, Siewert B, Al-Harrasi A, Csuk R. First Occurrence of a Furano-glycyrrhetinoate and Its Cytotoxicity. Arch Pharm (Weinheim) 2015; 348:889-96. [DOI: 10.1002/ardp.201500318] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 10/20/2015] [Accepted: 10/21/2015] [Indexed: 01/05/2023]
Affiliation(s)
- Lucie Heller
- Department of Organic Chemistry; Martin-Luther-University Halle-Wittenberg; Halle (Saale) Germany
| | - Sven Sommerwerk
- Department of Organic Chemistry; Martin-Luther-University Halle-Wittenberg; Halle (Saale) Germany
| | - Felix Tzschöckell
- Department of Organic Chemistry; Martin-Luther-University Halle-Wittenberg; Halle (Saale) Germany
| | - Jana Wiemann
- Department of Organic Chemistry; Martin-Luther-University Halle-Wittenberg; Halle (Saale) Germany
| | - Stefan Schwarz
- Department of Organic Chemistry; Martin-Luther-University Halle-Wittenberg; Halle (Saale) Germany
| | - Bianka Siewert
- Department of Organic Chemistry; Martin-Luther-University Halle-Wittenberg; Halle (Saale) Germany
| | - Ahmed Al-Harrasi
- Chair of Oman's Medicinal Plants and Marine Natural Products; University of Nizwa, Birkat Al-Mauz; Nizwa Sultanate of Oman
| | - René Csuk
- Department of Organic Chemistry; Martin-Luther-University Halle-Wittenberg; Halle (Saale) Germany
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Betulinic acid derived hydroxamates and betulin derived carbamates are interesting scaffolds for the synthesis of novel cytotoxic compounds. Eur J Med Chem 2015; 106:194-210. [PMID: 26547057 DOI: 10.1016/j.ejmech.2015.10.043] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 10/20/2015] [Accepted: 10/26/2015] [Indexed: 01/11/2023]
Abstract
The betulinic acid-derived hydroxamates 5-18, the amides 19-24, and betulin-derived bis-carbamates 25-28 as well as the carbamates 31-40 and 44-48 were prepared and evaluated for their antiproliferative activity in a photometric sulforhodamine B (SRB) assay against several human cancer cell lines and nonmalignant mouse fibroblasts (NIH 3T3). While for 3-O-acetyl hydroxamic acid 5 EC50 values as low as EC50 = 1.3 μM were found, N,O-bis-alkyl substituted hydroxamates showed lowered cytotoxicity (EC50 = 16-20 μM). In general, hydroxamic acid derivatives showed only reduced selectivity for tumor cells, except for allyl substituted compound 13 (EC50 = 5.9 μM for A2780 human ovarian carcinoma cells and EC50 > 30 μM for nonmalignant mouse fibroblasts). The cytotoxicity of betulinic acid derived amides 19-24 and of betulin derived bis-carbamates 25-28 was low, except for N-ethyl substituted 25. Hexyl substituted 39 showed EC50 = 5.6 μM (518A2 cells) while for mouse fibroblasts EC50 > 30 was determined.
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Rodríguez-Hernández D, Demuner AJ, Barbosa LCA, Csuk R, Heller L. Hederagenin as a triterpene template for the development of new antitumor compounds. Eur J Med Chem 2015; 105:57-62. [PMID: 26476750 DOI: 10.1016/j.ejmech.2015.10.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 10/02/2015] [Accepted: 10/05/2015] [Indexed: 12/30/2022]
Abstract
In this study, a series of novel C-28 esters and amides derivatives of hederagenin (He) were designed and synthesized in attempt to develop potent antitumor agents. Their structures were confirmed by MS, IR, (1)H NMR and (13)C NMR spectroscopic analyses and their cytotoxic activities were screened in SRB assays using a panel of six human cancer cell lines. Although most of the compounds displayed moderate to high levels of cytotoxic activity they were all more potent than the natural product He. The most active compounds had either an ethylpyrimidinyl (27) or an ethylpyrrolidinyl (28) substituent, with EC50 in the range of 1.1-6.5 μM for six human cancer cell lines. Notably, this corresponds to an approximately 30-fold times greater potency than He.
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Affiliation(s)
- Diego Rodríguez-Hernández
- Department of Chemistry, Universidade Federal de Viçosa, Av. P. H. Rolfs, s/n, CEP 36570-900, Viçosa, MG, Brazil; Department of Chemistry, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos 6627, Campus Pampulha, CEP 31270-901, Belo Horizonte, MG, Brazil
| | - Antonio J Demuner
- Department of Chemistry, Universidade Federal de Viçosa, Av. P. H. Rolfs, s/n, CEP 36570-900, Viçosa, MG, Brazil
| | - Luiz C A Barbosa
- Department of Chemistry, Universidade Federal de Viçosa, Av. P. H. Rolfs, s/n, CEP 36570-900, Viçosa, MG, Brazil; Department of Chemistry, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos 6627, Campus Pampulha, CEP 31270-901, Belo Horizonte, MG, Brazil.
| | - René Csuk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str.2, D-06120, Halle (Saale), Germany.
| | - Lucie Heller
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str.2, D-06120, Halle (Saale), Germany
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Schwarz S, Loesche A, Lucas SD, Sommerwerk S, Serbian I, Siewert B, Pianowski E, Csuk R. Converting maslinic acid into an effective inhibitor of acylcholinesterases. Eur J Med Chem 2015; 103:438-45. [DOI: 10.1016/j.ejmech.2015.09.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 03/16/2015] [Accepted: 09/05/2015] [Indexed: 11/17/2022]
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Martinez A, Perojil A, Rivas F, Parra A, Garcia-Granados A, Fernandez-Vivas A. Biotransformation of oleanolic and maslinic methyl esters by Rhizomucor miehei CECT 2749. PHYTOCHEMISTRY 2015; 117:500-508. [PMID: 26232553 DOI: 10.1016/j.phytochem.2015.07.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 07/22/2015] [Accepted: 07/27/2015] [Indexed: 05/25/2023]
Abstract
The pentacyclic triterpenoids methyl oleanolate, methyl maslinate, methyl 3β-hydroxyolean-9(11),12-dien-28-oate, and methyl 2α,3β-dihydroxy-12β,13β-epoxyolean-28-oate were biotransformed by Rhizomucor miehei CECT 2749. Microbial transformation of methyl oleanolate produced only a 7β,30-dihydroxylated metabolite with a conjugated 9(11),12-diene system in the C ring. Biotransformation of the substrate with this 9(11),12-diene system gave the same 7β,30-dihydroxylated compound together with a 7β,15α,30-trihydroxyl derivative. The action of this fungus (R. miehei) on methyl maslinate was more varied, isolating metabolites with a 30-hydroxyl group, a 9(11),12-diene system, an 11-oxo group, or an 12-oxo group. Microbial transformation of the substrate with a 12β,13β-epoxy function resulted in the isolation of two metabolites with 12-oxo and 28,13β-olide groups, hydroxylated or not at C-7β, together with a 30-hydroxy-12-oxo derivative. The structures of these derivatives were deduced by extensive and rigorous spectroscopic studies.
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Affiliation(s)
- Antonio Martinez
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain.
| | - Alberto Perojil
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
| | - Francisco Rivas
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain.
| | - Andres Parra
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
| | - Andres Garcia-Granados
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
| | - Antonia Fernandez-Vivas
- Departamento de Microbiología, Facultad de Ciencias, Universidad de Granada, E-18071 Granada, Spain
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Molina-Bolívar J, Galisteo-González F, Carnero Ruiz C, Medina-O' Donnell M, Parra A. Interaction between the anti-cancer drug diacetyl maslinic acid and bovine serum albumin: A biophysical study. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.04.050] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Wong FC, Tan ST, Chai TT. Phytochemical-mediated Protein Expression Profiling and the Potential Applications in Therapeutic Drug Target Identifications. Crit Rev Food Sci Nutr 2015; 56 Suppl 1:S162-70. [DOI: 10.1080/10408398.2015.1045967] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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39
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Synthesis and antitumor activity of ring A modified 11-keto-β-boswellic acid derivatives. Eur J Med Chem 2015; 92:700-11. [DOI: 10.1016/j.ejmech.2015.01.039] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 01/16/2015] [Accepted: 01/19/2015] [Indexed: 11/23/2022]
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40
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Li JF, Huang RZ, Yao GY, Ye MY, Wang HS, Pan YM, Xiao JT. Synthesis and biological evaluation of novel aniline-derived asiatic acid derivatives as potential anticancer agents. Eur J Med Chem 2014; 86:175-88. [DOI: 10.1016/j.ejmech.2014.08.003] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 07/27/2014] [Accepted: 08/01/2014] [Indexed: 10/24/2022]
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41
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Sommerwerk S, Csuk R. Convenient and chromatography-free partial syntheses of maslinic acid and augustic acid. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.07.074] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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42
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Heller L, Schwarz S, Weber BA, Csuk R. Gypsogenin derivatives: an unexpected class of inhibitors of cholinesterases. Arch Pharm (Weinheim) 2014; 347:707-16. [PMID: 25042600 DOI: 10.1002/ardp.201400103] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 05/06/2014] [Accepted: 05/21/2014] [Indexed: 11/08/2022]
Abstract
Gypsogenin (1) was obtained by acidic hydrolysis from its saponin. While the parent compound 1 acted as a selective inhibitor for butyrylcholinesterase (from equus) possessing a moderate mixed-type inhibition of the enzyme, Ki values as low as 2.67 ± 0.59 μM were determined for (3β,4α) 3-O-acetyl-olean-12-ene-23,28-dinitrile (11) and acetylcholinesterase (AChE, from electric eel). Thus, 11 possesses one-fifth of the inhibitory activity of the "gold standard" galantamine hydrobromide; this compound is one of the first pentacyclic triterpenoids described as a potent AChE-selective inhibitor.
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Affiliation(s)
- Lucie Heller
- Bereich Organische Chemie, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale), Germany
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43
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Maslinic acid induced apoptosis in bladder cancer cells through activating p38 MAPK signaling pathway. Mol Cell Biochem 2014; 392:281-7. [DOI: 10.1007/s11010-014-2038-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 03/14/2014] [Indexed: 12/28/2022]
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