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Chemistry and Biological Activities of Naturally Occurring and Structurally Modified Podophyllotoxins. Molecules 2022; 28:molecules28010302. [PMID: 36615496 PMCID: PMC9822336 DOI: 10.3390/molecules28010302] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/17/2022] [Accepted: 12/25/2022] [Indexed: 01/04/2023] Open
Abstract
Plants containing podophyllotoxin and its analogues have been used as folk medicines for centuries. The characteristic chemical structures and strong biological activities of this class of compounds attracted attention worldwide. Currently, more than ninety natural podophyllotoxins were isolated, and structure modifications of these molecules were performed to afford a variety of derivatives, which offered optimized anti-tumor activity. This review summarized up to date reports on natural occurring podophyllotoxins and their sources, structural modification and biological activities. Special attention was paid to both structural modification and optimized antitumor activity. It was noteworthy that etoposide, a derivative of podophyllotoxin, could prevent cytokine storm caused by the recent SARS-CoV-2 viral infection.
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Sharma P, Kumar D, Shri R, Kumar S. Mechanistic Insights and Docking Studies of Phytomolecules as Potential Candidates in the Management of Cancer. Curr Pharm Des 2022; 28:2704-2724. [PMID: 35473540 DOI: 10.2174/1381612828666220426112116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 03/09/2022] [Indexed: 12/16/2022]
Abstract
BACKGROUND Cancer is a leading risk of death globally. According to the World Health Organization, it is presently the second most important disease that causes death in both developing and developed countries. Remarkable progress has been made in the war against cancer with the development of numerous novel chemotherapy agents. However, it remains an immense challenge to discover new efficient therapeutic potential candidates to combat cancer. OBJECTIVES The majority of the currently used anticancer drugs are of natural origins, such as curcumin, colchicine, vinca alkaloid, paclitaxel, bergenin, taxols, and combretastatin. Concerning this, this review article presents the structure of the most potent molecules along with IC50 values, structure-activity relationships, mechanistic studies, docking studies, in silico studies of phytomolecules, and important key findings on human cancer cell lines. METHODS A viewpoint of drug design and development of antiproliferative agents from natural phytomolecules has been established by searching peer-reviewed literature from Google Scholar, PubMed, Scopus, Springer, Science Direct, and Web of Science over the past few years. RESULTS Our analysis revealed that this article would assist chemical biologists and medicinal chemists in industry and academia in gaining insights into the anticancer potential of phytomolecules. CONCLUSION In vitro and in silico studies present phytomolecules, such as curcumin, colchicine, vinca alkaloids, colchicine, bergenin, combretastatin, and taxol encompassing anticancer agents, offerings abundant sanguinity and capacity in the arena of drug discovery to inspire the investigators towards the continual investigations on these phytomolecules. It is extremely expected that efforts in this track will strengthen and grant some budding cancer therapeutics candidates in the near future.
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Affiliation(s)
- Pooja Sharma
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala-147002, Punjab, India.,Khalsa College of Pharmacy, Amritsar-143001, Punjab, India
| | - Dinesh Kumar
- Department of Pharmaceutical Sciences, Sri Sai College of Pharmacy, Manawala, Amritsar-143115, Punjab, India
| | - Richa Shri
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala-147002, Punjab, India
| | - Suresh Kumar
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala-147002, Punjab, India
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Lu Y, Zhu L, Cai R, Li Y, Zhao Y. 2, 4, 5-Trideoxyhexopyranosides Derivatives of 4'- Demethylepipodophyllotoxin: De novo Synthesis and Anticancer Activity. Med Chem 2020; 18:130-139. [PMID: 33222676 DOI: 10.2174/1573406416666201120102250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 08/26/2020] [Accepted: 10/06/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Podophyllotoxin is a natural lignan which possesses anticancer and antiviral activities. Etoposide and teniposide are semisynthetic glycoside derivatives of podophyllotoxin and are increasingly used in cancer medicine. OBJECTIVE The present work was aimed to design and synthesize a series of 2, 4, 5-trideoxyhexopyranosides derivatives of 4'-demethylepipodophyllotoxin as novel anticancer agents. METHODS A divergent de novo synthesis of 2, 4, 5-trideoxyhexopyranosides derivatives of 4'-demethylepipodophyllotoxin has been established via palladium-catalyzed glycosylation. The abilities of synthesized glycosides to inhibit the growth of A549, HepG2, SH-SY5Y, KB/VCR and HeLa cancer cells were investigated by MTT assay. Flow cytometric analysis of cell cycle with propidium iodide DNA staining was employed to observe the effect of compound 5b on cancer cell cycle. RESULTS Twelve D and L monosaccharides derivatives 5a-5l have been efficiently synthesized in three steps from various pyranone building blocks employing de novo glycosylation strategy. D-monosaccharide 5b showed highest cytotoxicity on five cancer cell lines with the IC50 values from 0.9 to 6.7 mM. It caused HepG2 cycle arrest at G2/M phase in a concentration-dependent manner. CONCLUSION The present work leads to the development of novel 2, 4, 5-trideoxyhexopyranosides derivatives of 4'- demethylepipodophyllotoxin. The biological results suggested that the replacement of the glucosyl moiety of etoposide with 2, 4, 5-trideoxyhexopyranosyl is favorable to their cytotoxicity. D-monosaccharide 5b caused HepG2 cycle arrest at G2/M phase in a concentration-dependent manner.
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Affiliation(s)
- Yapeng Lu
- School of Pharmacy, Nantong University, Nantong 226001. China
| | - Li Zhu
- School of Pharmacy, Nantong University, Nantong 226001. China
| | - Rui Cai
- School of Pharmacy, Nantong University, Nantong 226001. China
| | - Yu Li
- School of Pharmacy, Nantong University, Nantong 226001. China
| | - Yu Zhao
- School of Pharmacy, Nantong University, Nantong 226001. China
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Divergent de novo synthesis of 2,4,5-trideoxyhexopyranosides derivatives of podophyllotoxin as anticancer agents. Future Med Chem 2019; 11:3015-3027. [DOI: 10.4155/fmc-2018-0593] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Aim: Identification of new anticancer glycosidic derivatives of podophyllotoxin. Methods: 14 podophyllotoxin D- and L-monosaccharides have been synthesized in three steps employing de novo glycosylation strategy, and their abilities to inhibit the growth of HeLa, HepG2, MCF-7, A549 and MDA-MB-231 cancer cells were investigated by MTT assay. Molecular docking study of compound 5j with tubulin was performed. Immunofluorescence was applied for detecting the inhibitory effect of 5j on tubulin polymerization. Results & conclusion: Most of synthesized compounds showed strong cytotoxicity activity against five cancer cell lines. Compound 5j possessed the highest cytotoxicity with the IC50 values from 41.6 to 95.2 nM, and could concentration-dependently inhibit polymerization of the microtubule cytoskeleton of MCF-7 cells. Molecular docking disclosed that sugar moiety-dedicated hydrogen bond endowed 5j a higher binding affinity for tubulin.
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Ma YZ, Tang ZB, Sang CY, Qi ZY, Hui L, Chen SW. Synthesis and biological evaluation of nitroxide labeled pyrimidines as Aurora kinase inhibitors. Bioorg Med Chem Lett 2019; 29:694-699. [PMID: 30728112 DOI: 10.1016/j.bmcl.2019.01.034] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 01/28/2019] [Accepted: 01/29/2019] [Indexed: 02/06/2023]
Abstract
To find novel effective Aurora kinases inhibitors, a series of structurally interesting nitroxide labeled pyrimidines were synthesized and evaluated their anti-proliferative and Aurora kinases inhibitory activities. Among them, butyl 2-(3-((5-fluoro-2-((4-((1-oxyl-2,2,6,6-tetramethylpiperidin-4-yl)carbamoyl) phenyl) amino)pyrimidin-4-yl)amino)-1H-pyrazol-5-yl)acetate (22) possessed the most potent anti-proliferative effects against four carcinoma cell lines with IC50 values in range of 0.89-11.41 μM, and kinases inhibition against Aurora A and B with the IC50 values were 9.3 and 2.8 nM, respectively. Furthermore, compound 22 blocked the phosphorylation of Aurora A (T288), Aurora B (Thr232) and HisH3, decreased the expression of proteins TPX2, Eg5 and Bora, as well as disrupted the mitotic spindle formation in HeLa cells. Molecular docking studies indicated that compound 22 well interact with both Aurora A and B. The results showed that compound 22 is a potential anticancer agent as promising pan-Aurora kinase inhibitor.
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Affiliation(s)
- You-Zhen Ma
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Zhen-Bo Tang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Chun-Yan Sang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Zhi-Yuan Qi
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Ling Hui
- Experimental Center of Medicine, General Hospital of Lanzhou Military Command, Lanzhou 730050, China; Key Laboratory of Stem Cells and Gene Drug of Gansu Province, General Hospital of Lanzhou Military Command, Lanzhou 730050, China
| | - Shi-Wu Chen
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China.
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Sang CY, Qin WW, Zhang XJ, Xu Y, Ma YZ, Wang XR, Hui L, Chen SW. Synthesis and identification of 2,4-bisanilinopyrimidines bearing 2,2,6,6-tetramethylpiperidine-N-oxyl as potential Aurora A inhibitors. Bioorg Med Chem 2019; 27:65-78. [DOI: 10.1016/j.bmc.2018.11.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 10/16/2018] [Accepted: 11/05/2018] [Indexed: 12/26/2022]
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Abstract
Chemotherapy is a general treatment option for various cancers, including lung cancer. In order to find compounds with superior bioactivity and less toxicity against lung cancer, novel spin-labeled 5-fluorouracil (5-FU) derivatives (3a-f) were synthesized and evaluated against four human tumor cell lines (A-549, DU-145, KB, and KBvin). Two promising compounds 3d and 3f exhibited IC50 values of 2.76 and 2.38 μM, respectively, against non-small cell lung carcinoma cell line A-549. These compounds were twofold more cytotoxic than 5-FU and less toxic against other tested cell lines. Compound 3f exhibited seven times more selective cytotoxicity against A-549 than 5-FU. Our results suggest that compounds 3d and 3f merit further investigation for development into clinical trial candidates for non-small cell lung cancer.
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Liu YQ, Tian J, Qian K, Zhao XB, Morris-Natschke SL, Yang L, Nan X, Tian X, Lee KH. Recent progress on C-4-modified podophyllotoxin analogs as potent antitumor agents. Med Res Rev 2015; 35:1-62. [PMID: 24827545 PMCID: PMC4337794 DOI: 10.1002/med.21319] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Podophyllotoxin (PPT), as well as its congeners and derivatives, exhibits pronounced biological activities, especially antineoplastic effects. Its strong inhibitory effect on tumor cell growth led to the development of three of the most highly prescribed anticancer drugs in the world, etoposide, teniposide, and the water-soluble prodrug etoposide phosphate. Their clinical success as well as intriguing mechanism of action stimulated great interest in further modification of PPT for better antitumor activity. The C-4 position has been a major target for structural derivatization aimed at either producing more potent compounds or overcoming drug resistance. Accordingly, numerous PPT derivatives have been prepared via hemisynthesis and important structure-activity relationship (SAR) correlations have been identified. Several resulting compounds, including GL-331, TOP-53, and NK611, reached clinical trials. Some excellent reviews on the distribution, sources, applications, synthesis, and SAR of PPT have been published. This review focuses on a second generation of new etoposide-related drugs and provides detailed coverage of the current status and recent development of C-4-modified PPT analogs as anticancer clinical trial candidates.
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Affiliation(s)
- Ying-Qian Liu
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Jing Tian
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Keduo Qian
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina
| | - Xiao-Bo Zhao
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Susan L. Morris-Natschke
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina
| | - Liu Yang
- Environmental and Municipal Engineering School, Lanzhou Jiaotong University, Lanzhou, P.R. China
| | - Xiang Nan
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Xuan Tian
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, P.R. China
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina
- Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung, Taiwan
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Zhao XB, Wu D, Wang MJ, Goto M, Morris-Natschke SL, Liu YQ, Wu XB, Song ZL, Zhu GX, Lee KH. Design and synthesis of novel spin-labeled camptothecin derivatives as potent cytotoxic agents. Bioorg Med Chem 2014; 22:6453-8. [PMID: 25438769 DOI: 10.1016/j.bmc.2014.09.035] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 09/10/2014] [Accepted: 09/16/2014] [Indexed: 11/30/2022]
Abstract
In our continuing search for natural product-based spin-labeled antitumor drugs, 20 novel spin-labeled camptothecin derivatives were synthesized via a Cu-catalyzed one pot reaction and evaluated for cytotoxicity against four human tumor cell lines (A-549, MDA-MB-231, KB, and KBvin). Eighteen of the target compounds (9a, 9b, 9d-9k, 9m-9t) exhibited significant in vitro antiproliferative activity against these four tested tumor cell lines. Compounds 9e and 9j (IC50 0.057 and 0.072μM, respectively) displayed the greatest cytotoxicity against the multidrug-resistant (MDR) KBvin cell line and merit further development into preclinical and clinical drug candidates for treating cancer including MDR phenotype.
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Affiliation(s)
- Xiao-Bo Zhao
- School of Pharmacy, Lanzhou University, Lanzhou 730000, PR China
| | - Dan Wu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, PR China
| | - Mei-Juan Wang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, PR China
| | - Masuo Goto
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, United States
| | - Susan L Morris-Natschke
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, United States
| | - Ying-Qian Liu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, PR China.
| | - Xiao-Bing Wu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, PR China
| | - Zi-Long Song
- School of Pharmacy, Lanzhou University, Lanzhou 730000, PR China
| | - Gao-Xiang Zhu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, PR China
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, United States; Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung, Taiwan.
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Synthesis of novel spin-labeled podophyllotoxin derivatives as potential antineoplastic agents: Part XXV. Med Chem Res 2014; 23:4926-4931. [PMID: 25709376 DOI: 10.1007/s00044-014-1042-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A series of novel spin-labeled 4β-[(4-substituted)-1,2,3-triazol-1-yl]podophyllotoxin derivatives (17a-h) were firstly designed and synthesized with significant regioselectivity by employing Cu(I) catalyzed click approach, and evaluated for cytotoxicity against four human tumor cell lines (A-549, DU145, KB, and KBvin). Among them, compound 17h displayed the highest cytotoxic activity against the tumor cell lines tested. Significantly, compound 17h showed superior cytotoxic activity compared with etoposide (IC50 6.30 to>10 μM), a clinically available anticancer drug. Significant activity toward the drug resistant KBvin cell line revealed promising future for compound 17h as a new generation of epipodophyllotoxin-derived antitumor clinical trial candidate.
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A rational design strategy of the novel topoisomerase II inhibitors for the synthesis of the 4-O-(2-pyrazinecarboxylic)-4′-demethylepipodophyllotoxin with antitumor activity by diminishing the relaxation reaction of topoisomerase II-DNA decatenation. Bioorg Med Chem 2014; 22:2998-3007. [DOI: 10.1016/j.bmc.2014.03.048] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 03/22/2014] [Accepted: 03/31/2014] [Indexed: 11/18/2022]
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Kou L, Wang MJ, Wang LT, Zhao XB, Nan X, Yang L, Liu YQ, Morris-Natschke SL, Lee KH. Toward synthesis of third-generation spin-labeled podophyllotoxin derivatives using isocyanide multicomponent reactions. Eur J Med Chem 2014; 75:282-8. [PMID: 24553146 PMCID: PMC3955052 DOI: 10.1016/j.ejmech.2014.01.038] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 01/15/2014] [Accepted: 01/18/2014] [Indexed: 10/25/2022]
Abstract
Spin-labeled podophyllotoxins have elicited widespread interest due to their far superior antitumor activity compared to podophyllotoxin. To extend our prior studies in this research area, we synthesized a new generation of spin-labeled podophyllotoxin analogs via isocyanide multicomponent reactions and evaluated their cytotoxicity against four human cancer cell lines (A-549, DU-145, KB and KBvin). Most of the compounds exhibited potent cytotoxic activity against all four cell lines, notably against the drug resistant KBvin cancer cell line. Among the new analogs, compounds 12e (IC50: 0.60-0.75 μM) and 12h (IC50: 1.12-2.03 μM) showed superior potency to etoposide (IC50: 2.03 to >20 μM), a clinically available anticancer drug. With a concise efficient synthesis and potent cytotoxic profiles, compounds 12e and 12h merit further development as a new generation of epipodophyllotoxin-derived antitumor clinical trial candidates.
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Affiliation(s)
- Liang Kou
- School of Pharmacy, Lanzhou University, Lanzhou 730000, PR China
| | - Mei-Juan Wang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, PR China
| | - Li-Ting Wang
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Xiao-Bo Zhao
- School of Pharmacy, Lanzhou University, Lanzhou 730000, PR China
| | - Xiang Nan
- School of Pharmacy, Lanzhou University, Lanzhou 730000, PR China
| | - Liu Yang
- Environmental and Municipal Engineering School, Lanzhou Jiaotong University, Lanzhou 730000, PR China
| | - Ying-Qian Liu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, PR China; Xinjiang Production & Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, PR China.
| | - Susan L Morris-Natschke
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA; Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung, Taiwan.
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Zhao C, Zhang N, He W, Li R, Shi D, Pang L, Dong N, Xu H, Ji H. Simultaneous determination of three major lignans in rat plasma by LC-MS/MS and its application to a pharmacokinetic study after oral administration ofDiphylleia sinensisextract. Biomed Chromatogr 2013; 28:463-7. [PMID: 24122912 DOI: 10.1002/bmc.3066] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2013] [Revised: 09/06/2013] [Accepted: 09/17/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Chengliang Zhao
- The First Hospital of Jilin University; Changchun 130021 China
| | - Nan Zhang
- Department of Emergency Medicine; The First Hospital of Jilin University; Changchun 130021 China
| | - Weiyan He
- Department of Emergency Medicine; The Affiliated Hospital to Changchun University of Chinese Medicine; Changchun 130021 China
| | - Rui Li
- Department of Emergency Medicine; The Affiliated Hospital to Changchun University of Chinese Medicine; Changchun 130021 China
| | - Dan Shi
- Department of Emergency Medicine; The Affiliated Hospital to Changchun University of Chinese Medicine; Changchun 130021 China
| | - Li Pang
- Department of Emergency Medicine; The First Hospital of Jilin University; Changchun 130021 China
| | - Ning Dong
- Department of Emergency Medicine; The First Hospital of Jilin University; Changchun 130021 China
| | - Hong Xu
- Department of Gastroenterology; The First Hospital of Jilin University; Changchun 130021 China
| | - Honglei Ji
- Department of Cardiology; The First Hospital of Jilin University; Changchun 130021 China
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Synthesis and mechanistic studies of novel spin-labeled combretastatin derivatives as potential antineoplastic agents. Bioorg Med Chem 2013; 21:1248-56. [PMID: 23369687 DOI: 10.1016/j.bmc.2012.12.046] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 12/10/2012] [Accepted: 12/20/2012] [Indexed: 11/23/2022]
Abstract
Two series (14a-d and 21a-h) of novel spin-labeled combretastatin derivatives were synthesized and evaluated for cytotoxicity against four tumor cell lines (K562, SGC-7901, Hela and HepG-2). Simultaneously, a representative compound 21a was selected to investigate the antitumor mechanisms of these synthetic compounds. The results indicated that some of the compounds showed significant cytotoxicity against four tumor cell lines in vitro and were more active than etoposide, a clinically available anticancer drug. Among the newly synthesized compounds, 21a, 21b and 21c displayed the greatest cytotoxicity against three tested tumor cell lines (HEPG-2, BGC-832 and Hela), with IC(50) values ranging from 0.15 to 1.05 μM, compared with values of 0.014-0.403 μM for 3-amino-deoxycombretastatin A-4 (3). In addition, the mechanistic analysis revealed that compound 21a effectively interfered with tubulin dynamics to prevent mitosis in cancer cells, leading to cell cycle arrest and, eventually, dose dependent apoptosis.
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Li M, Zhou L, Yang D, Li T, Li W. Biochemical composition and antioxidant capacity of extracts from Podophyllum hexandrum rhizome. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 12:263. [PMID: 23259745 PMCID: PMC3542176 DOI: 10.1186/1472-6882-12-263] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Accepted: 12/19/2012] [Indexed: 11/12/2022]
Abstract
BACKGROUND Podophyllum hexandrum Royle (P. hexandrum) is a perennial herb and widely used in clinic. The present study was designed to separate and identify the biochemical composition and antioxidant capacity of extracts from P. hexandrum rhizome. METHODS The ethyl acetate and ethanol extracts from P. hexandrum rhizome were analyzed by GC-MS (gas chromatography-mass spectrometry), and the antioxidant capacity of the extracts and the components was tested by using the DPPH (2, 2-diphenylpicrylhydrazyl) and FRAP (Ferric reducing/antioxidant power) assays. RESULTS The rhizome extracts had greater antioxidant capacity than the petiole extracts in DPPH and FRAP assays. About 16 kinds of main reactive oxygen components were identified in the extracts. Components of PADE (Phthalic acid, diisobutyl ester), BADE (1,2-Benzenedicarboxylic acid, diisooctyl ester), Polyneuridine, PODD (Podophyllotoxin, deoxy), β-Sitosterol and POD (Podophyllotoxin) showed the antioxidant capacity in some degree. PODD, POD, and Polyneuridine showed stronger antioxidant capacity with the IC50 and FRAP values of 9.61 ± 0.81 and 2923.98 ± 21.89 μM, 9.98 ± 0.24 and 2847.27 ± 14.82 μM, and 13.37 ± 0.35 and 2404.32 ± 36.88 μM, respectively, than the positive control ASA (Ascorbic acid) with the values of 60.78 ± 1.22 and 1267.5 ± 30.24 μM (P < 0.01). CONCLUSIONS PODD, POD, and Polyneuridine are very critical for the antioxidant capacity in the extract of P. hexandrum rhizome. These results provide useful biochemical basis and information for the potential use of this plant.
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Affiliation(s)
- Mengfei Li
- Gansu Provincial Key Lab of Aridland Crop Science / College of Life Science and Technology, Gansu Agricultural University, Lanzhou, 730070, Gansu, P.R. China
| | - Lanlan Zhou
- Gansu Provincial Key Lab of Aridland Crop Science / College of Life Science and Technology, Gansu Agricultural University, Lanzhou, 730070, Gansu, P.R. China
| | - Delong Yang
- Gansu Provincial Key Lab of Aridland Crop Science / College of Life Science and Technology, Gansu Agricultural University, Lanzhou, 730070, Gansu, P.R. China
| | - Tiantian Li
- Gansu Provincial Key Lab of Aridland Crop Science / College of Life Science and Technology, Gansu Agricultural University, Lanzhou, 730070, Gansu, P.R. China
| | - Wei Li
- Gansu Provincial Key Lab of Aridland Crop Science / College of Life Science and Technology, Gansu Agricultural University, Lanzhou, 730070, Gansu, P.R. China
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Li XJ, Yang L, Liu YQ, Li C. Synthesis of novel spin-labelled combretastatin A-4 derivatives as potential antineoplastic agents. Nat Prod Res 2012; 26:1271-7. [DOI: 10.1080/14786419.2011.566222] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Liu YQ, Ohkoshi E, Li LH, Yang L, Lee KH. Design, synthesis and cytotoxic activity of novel spin-labeled rotenone derivatives. Bioorg Med Chem Lett 2011; 22:920-3. [PMID: 22204911 DOI: 10.1016/j.bmcl.2011.12.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Revised: 12/01/2011] [Accepted: 12/05/2011] [Indexed: 10/14/2022]
Abstract
Three series of novel spin-labeled rotenone derivatives were synthesized and evaluated for cytotoxicity against four tumor cell lines, A-549, DU-145, KB and KBvin. All of the derivatives showed promising in vitro cytotoxic activity against the tumor cell lines tested, with IC(50) values ranging from 0.075 to 0.738μg/mL. Remarkably, all of the compounds were more potent than paclitaxel against KBvin in vitro, and compounds 3a and 3d displayed the highest cytotoxicity against this cell line (IC(50) 0.075 and 0.092μg/mL, respectively). Based on the observed cytotoxicity, structure-activity relationships have been described.
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Affiliation(s)
- Ying-Qian Liu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, PR China; Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung, Taiwan
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Chen SW, Gao YY, Zhou NN, Liu J, Huang WT, Hui L, Jin Y, Jin YX. Carbamates of 4′-demethyl-4-deoxypodophyllotoxin: Synthesis, cytotoxicity and cell cycle effects. Bioorg Med Chem Lett 2011; 21:7355-8. [DOI: 10.1016/j.bmcl.2011.10.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Revised: 09/26/2011] [Accepted: 10/07/2011] [Indexed: 10/16/2022]
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20
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Semenova MN, Kiselyov AS, Tsyganov DV, Konyushkin LD, Firgang SI, Semenov RV, Malyshev OR, Raihstat MM, Fuchs F, Stielow A, Lantow M, Philchenkov AA, Zavelevich MP, Zefirov NS, Kuznetsov SA, Semenov VV. Polyalkoxybenzenes from Plants. 5. Parsley Seed Extract in Synthesis of Azapodophyllotoxins Featuring Strong Tubulin Destabilizing Activity in the Sea Urchin Embryo and Cell Culture Assays. J Med Chem 2011; 54:7138-49. [DOI: 10.1021/jm200737s] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marina N. Semenova
- Institute of Developmental Biology, RAS, 26 Vavilov Street, 119334 Moscow, Russian Federation
- Chemical Block Ltd., 3 Kyriacou Matsi, 3723 Limassol, Cyprus
| | - Alex S. Kiselyov
- CHDI Foundation, 6080 Center Drive, Suite 100, Los Angeles California 90045, United States
| | - Dmitry V. Tsyganov
- N. D. Zelinsky Institute of Organic Chemistry, RAS, 47 Leninsky Prospect, 119991 Moscow, Russian Federation
| | - Leonid D. Konyushkin
- N. D. Zelinsky Institute of Organic Chemistry, RAS, 47 Leninsky Prospect, 119991 Moscow, Russian Federation
| | - Sergei I. Firgang
- N. D. Zelinsky Institute of Organic Chemistry, RAS, 47 Leninsky Prospect, 119991 Moscow, Russian Federation
| | - Roman V. Semenov
- N. D. Zelinsky Institute of Organic Chemistry, RAS, 47 Leninsky Prospect, 119991 Moscow, Russian Federation
| | - Oleg R. Malyshev
- N. D. Zelinsky Institute of Organic Chemistry, RAS, 47 Leninsky Prospect, 119991 Moscow, Russian Federation
| | - Mikhail M. Raihstat
- N. D. Zelinsky Institute of Organic Chemistry, RAS, 47 Leninsky Prospect, 119991 Moscow, Russian Federation
| | - Fabian Fuchs
- Institute of Biological Sciences, University of Rostock, 3 Albert-Einstein-Strasse, D-18059 Rostock, Germany
| | - Anne Stielow
- Institute of Biological Sciences, University of Rostock, 3 Albert-Einstein-Strasse, D-18059 Rostock, Germany
| | - Margareta Lantow
- Institute of Biological Sciences, University of Rostock, 3 Albert-Einstein-Strasse, D-18059 Rostock, Germany
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, 1600 Archer Road, Gainesville Florida 32610, United States
| | - Alex A. Philchenkov
- R. E. Kavetsky Institute of Experimental Oncology, Pathology, and Radiobiology, National Academy of Sciences of Ukraine, 45 Vasyl′kivska Street, 03022 Kyiv, Ukraine
| | - Michael P. Zavelevich
- R. E. Kavetsky Institute of Experimental Oncology, Pathology, and Radiobiology, National Academy of Sciences of Ukraine, 45 Vasyl′kivska Street, 03022 Kyiv, Ukraine
| | - Nikolay S. Zefirov
- Lomonosov Moscow State University, GSP-1, Leninskie Gory, 119991 Moscow, Russian Federation
| | - Sergei A. Kuznetsov
- Institute of Biological Sciences, University of Rostock, 3 Albert-Einstein-Strasse, D-18059 Rostock, Germany
| | - Victor V. Semenov
- Chemical Block Ltd., 3 Kyriacou Matsi, 3723 Limassol, Cyprus
- N. D. Zelinsky Institute of Organic Chemistry, RAS, 47 Leninsky Prospect, 119991 Moscow, Russian Federation
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Jin Y, Liu J, Huang WT, Chen SW, Hui L. Synthesis and biological evaluation of derivatives of 4-deoxypodophyllotoxin as antitumor agents. Eur J Med Chem 2011; 46:4056-61. [PMID: 21733601 DOI: 10.1016/j.ejmech.2011.06.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Revised: 05/31/2011] [Accepted: 06/01/2011] [Indexed: 01/05/2023]
Abstract
In an attempt to generate compounds with superior bioactivity and reduced toxicity, a series of derivatives of deoxypodophyllotoxin were synthesized by reacting 4'-demethyl-4-deoxypodophyllotoxin with substituted piperazines or their amino acid amides. The cytotoxic activity of these compounds against three human cancer cell lines was evaluated. We found that p-nitrophenylpiperazine substitution (Compound 8b) led to an increase in the potency of the compound. Compound 8b exhibited the most potent cytotoxicity against A-549, HeLa and SiHa cells (IC(50) values were 0.102, 0.180 and 0.0195 μM, respectively). In addition, flow cytometric analysis showed that 8b induced cell cycle arrest in the G1 phase accompanied by apoptosis in A-549 cells.
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Affiliation(s)
- Yan Jin
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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Kamal A, Ashwini Kumar B, Suresh P, Juvekar A, Zingde S. Synthesis of 4β-carbamoyl epipodophyllotoxins as potential antitumour agents. Bioorg Med Chem 2011; 19:2975-9. [DOI: 10.1016/j.bmc.2011.03.030] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2011] [Revised: 03/11/2011] [Accepted: 03/12/2011] [Indexed: 10/18/2022]
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Koszytkowska-Stawińska M, Mironiuk-Puchalska E, Sas W. Synthesis of 1-pyrroline 1-oxides analogous to pseudouridine. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.02.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Synthesis and antitumor activity of novel aroylthiourea derivatives of podophyllotoxin. Invest New Drugs 2010; 30:17-24. [PMID: 20697773 DOI: 10.1007/s10637-010-9508-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2010] [Accepted: 07/26/2010] [Indexed: 10/19/2022]
Abstract
A novel series of 4β-[(4-substituted) aroylthiourea] derivatives of podophyllotoxin were synthesized and their abilities to inhibit the growth of cancer cells were investigated by MTT assay. Compound 4a possessed the highest cytotoxicity on HepG2, A549 and HCT-116 cancer cell lines with the IC(50) values of 0.1 μM. Apoptosis in HCT-116 cells induced by compound 4a was observed by Hoechst33342-Propidium iodide (PI) and acridine orange (AO)-ethidium bromide (EB) double staining assays. DNA flow cytometric analysis revealed that 4a induced cell cycle arrest at G2/M phase and kDNA decatenation assay indicated that 4a inhibited topoisomerase IIα-mediated kDNA decatenation. Our results indicated that compound 4a possessed promising antitumor activity, which need to be studied further.
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Zhang JQ, Zhang ZW, Hui L, Tian X. Design, Synthesis and Biological Evaluation of Novel Spin-Labeled Derivatives of Podophyllotoxin. Nat Prod Commun 2010. [DOI: 10.1177/1934578x1000500214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In order to design new antitumor drugs and study the relationship between antitumor and antioxidative activity of spin-labeled derivatives of podophyllotoxin, five novel pyrroline spin-labeled 4β-N-substituted-amino acid-4′-O-demethylepipodo-phyllotoxin compounds (11a-e) (Scheme 2) were synthesized and evaluated. Their cytotoxicity against three tumor cell lines (human lung carcinoma A-549, human leukemia cell HL-60 and multiple myeloma RPMI-8226) has been evaluated using a MTT-based assay in vitro. Also, we determined malondialdehyde (MDA) in liver and kidney homogenate of SD rats by the TBA method. The five new compounds showed either superior or comparable inhibitory activity against A-549, HL-60 and RPMI-8226 cell lines compared with etoposide (VP-16, 2), and all the tested compounds showed more significant antioxidant activities than VP-16. Furthermore, the partition coefficients were measured and preliminary structure-activity relationships are presented.
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Affiliation(s)
- Jia-qiang Zhang
- State Key Laboratory of Applied Organic Chemistry Lanzhou University, Lanzhou, 730000, China
| | - Zhi-wei Zhang
- State Key Laboratory of Applied Organic Chemistry Lanzhou University, Lanzhou, 730000, China
| | - Ling Hui
- Experimental center of Medicine, Lanzhou General Hospital, Lanzhou Command, Lanzhou, 730050, China
| | - Xuan Tian
- State Key Laboratory of Applied Organic Chemistry Lanzhou University, Lanzhou, 730000, China
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Zhang JQ, Zhang ZW, Hui L, Chen SW, Tian X. Novel semisynthetic spin-labeled derivatives of podophyllotoxin with cytotoxic and antioxidative activity. Bioorg Med Chem Lett 2010; 20:983-6. [DOI: 10.1016/j.bmcl.2009.12.048] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2009] [Revised: 11/26/2009] [Accepted: 12/14/2009] [Indexed: 11/25/2022]
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Hu C, Xu D, Du W, Qian S, Wang L, Lou J, He Q, Yang B, Hu Y. Novel 4 beta-anilino-podophyllotoxin derivatives: design synthesis and biological evaluation as potent DNA-topoisomerase II poisons and anti-MDR agents. MOLECULAR BIOSYSTEMS 2009; 6:410-20. [PMID: 20094661 DOI: 10.1039/b912336a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new series of 4 beta-anilino-podophyllotoxin analogs have been designed, synthesized and evaluated their bioactivities as novel DNA-topoisomerase II poisons as well as P-glycoprotein (P-gp)-dependent multidrug resistance (MDR) inhibitors. The new compounds show improved potency and efficacy with respect to the parent molecule etoposide (VP-16), one of the semisynthetic derivatives of podophyllotoxin. The treatment of 5k-n in KB/VCR cells caused G(2)/M phase arrest and finally induced apoptosis. Furthermore, molecular docking is applied to testify that 5k-n could not be the substrates of P-gp, which is consistent with the result of MDR1 and P-glycoprotein express tests. The most potent compound 5n is chosen for in vivo studies, the administration of 5n was effective in treatment of cancer with a lower dose than VP-16 in drug-sensitive xenograft model and drug-resistant xenograft model. Compound 5n is a potential drug candidate for anticancer chemotherapy.
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Affiliation(s)
- Chunqi Hu
- ZJU-ENS joint laboratory of medicinal chemistry, School of Pharmaceutical Sciences, Zhejiang University, 388# Yuhangtang Rd., Hangzhou 310058, China
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An integrative approach for the isolation, screening and analysis of antitumor agents by liquid chromatography combined with mass spectrometry. Anal Chim Acta 2009; 655:86-91. [DOI: 10.1016/j.aca.2009.09.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2009] [Revised: 09/26/2009] [Accepted: 09/29/2009] [Indexed: 11/18/2022]
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29
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Zhao L, Liu ZL, Fan PC, Zhang ZW, Liu X, Zhan YJ, Tian X. HPLC-DAD and HPLC-ESI-MS separation, determination and identification of the spin-labeled diastereoisomers of podophyllotoxin. J Sep Sci 2009; 32:1323-32. [DOI: 10.1002/jssc.200800674] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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30
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Synthesis and biological evaluation of novel conjugates of podophyllotoxin and 5-FU as antineoplastic agents. Bioorg Med Chem 2009; 17:3111-7. [DOI: 10.1016/j.bmc.2009.03.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2009] [Revised: 02/28/2009] [Accepted: 03/03/2009] [Indexed: 11/17/2022]
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31
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Novel biotransformation process of podophyllotoxin to produce podophyllic acid and picropodophyllotoxin by Pseudomonas aeruginosa CCTCC AB93066. Part I: Process development. Bioprocess Biosyst Eng 2008; 32:663-71. [DOI: 10.1007/s00449-008-0290-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2008] [Accepted: 12/10/2008] [Indexed: 11/26/2022]
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32
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Liu YQ, Tian X, Yang L, Zhan ZC. First synthesis of novel spin-labeled derivatives of camptothecin as potential antineoplastic agents. Eur J Med Chem 2008; 43:2610-4. [DOI: 10.1016/j.ejmech.2008.01.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2007] [Revised: 12/12/2007] [Accepted: 01/10/2008] [Indexed: 10/22/2022]
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Abstract
Throughout history, natural products have afforded a rich source of compounds that have found many applications in the fields of medicine, pharmacy and biology. Within the sphere of cancer, a number of important new commercialised drugs have been obtained from natural sources, by structural modification of natural compounds, or by the synthesis of new compounds, designed following a natural compound as model. The search for improved cytotoxic agents continues to be an important line in the discovery of modern anticancer drugs. The huge structural diversity of natural compounds and their bioactivity potential have meant that several products isolated from plants, marine flora and microorganisms can serve as "lead" compounds for improvement of their therapeutic potential by molecular modification. Additionally, semisynthesis processes of new compounds, obtained by molecular modification of the functional groups of lead compounds, are able to generate structural analogues with greater pharmacological activity and with fewer side effects. These processes, complemented with high-throughput screening protocols, combinatorial chemistry, computational chemistry and bioinformatics are able to afford compounds that are far more efficient than those currently used in clinical practice. Combinatorial biosynthesis is also applied for the modification of natural microbial products. Likewise, advances in genomics and the advent of biotechnology have improved both the discovery and production of new natural compounds.
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Li Q, Yan G, Ge T. A fragmentation study of two compounds related to 4'-demethylepipodophyllotoxin in negative ion electrospray ionization by MSn ion-trap time-of-flight mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2008; 22:373-8. [PMID: 18183636 DOI: 10.1002/rcm.3366] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
High-resolution electrospray ionization multistage tandem mass spectrometry (MS 1-7) in negative ion mode was used to determine the accurate masses and fragmentation pathways of two compounds, 4'-demethylepipodophyllotoxin and 4'-demethyl-4-azido-4-deoxyepipodophyllotoxin, which are key intermediate compounds for the preparation of podophyllotoxin-type anti-cancer drugs. The deprotonated molecules [M-H]* of both compounds were readily observed in the conventional single-stage mass spectra due to the presence of the phenolic hydroxyl group in the molecules. Abundant information on the product ions was obtained from tandem mass spectra (MS 2-7) in negative ion mode. Based on the exact masses acquired from 14 different tandem mass spectra, a similar MSn fragmentation pathway was proposed for both compounds. A characteristic product ion produced in the MS 2-4 product ion scan experiments is the cyclohexylenetrione anion [M-H-2Me-RH]* or [M-H-RH-2Me]* at m/z 351 (C19H11O7) formed by the consecutive losses of two CH3 radicals at the 3'- and 5'-positions and the neutral loss of RH, where R = a 4-substituted group (-OH or -N3), from the [M-H]* ion. This anion may be considered as diagnostic for the presence of this type of compound. The other common cleavages are the neutral losses of CO at least two times in the MS 6,7 product ion spectra. The results of this work could serve as an effective tool for the detection or determination of other derivatives of 4'-demethyl-4beta-substituted podophyllotoxin, which are widely used as intermediates for the preparation of anti-tumor drugs.
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Affiliation(s)
- Qianrong Li
- Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China.
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Zhang FM, Yao XJ, Tian X, Tu YQ. Synthesis and biological evaluation of new 4beta-5-Fu-substituted 4'-demethylepipodophyllotoxin derivatives. Molecules 2006; 11:849-57. [PMID: 18007391 DOI: 10.3390/11110849] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2006] [Revised: 10/26/2006] [Accepted: 10/27/2006] [Indexed: 11/16/2022] Open
Abstract
A series of new 4beta-5-Fu-substituted 4'-demethylepipodophyllotoxin derivatives were synthesized and evaluated, together with some previously prepared ones, for their cytotoxic activities against four tumor cell lines (HL60, P388, A549 and BEL7402). Three of these compounds exhibited superior in vitro anticancer activity against P388 and A549 than the reference compound etoposide. In addition, the partition coefficients (P) of all the new and previously synthesized derivatives were determined.
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Affiliation(s)
- Fu-Min Zhang
- State Key Laboratory of Applied Organic Chemistry & Department of Chemistry, Lanzhou University, Lanzhou, 730000, PR China.
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