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Hirazawa S, Saito Y, Sagano M, Goto M, Nakagawa-Goto K. Chemical Space Expansion of Flavonoids: Induction of Mitotic Inhibition by Replacing Ring B with a 10π-Electron System, Benzo[ b]thiophene. JOURNAL OF NATURAL PRODUCTS 2022; 85:136-147. [PMID: 35026948 DOI: 10.1021/acs.jnatprod.1c00867] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Natural products, which are enzymatically biosynthesized, have a broad range of biological activities. In particular, many flavonoids are known to contribute to human health with low toxicity. We previously reported that novel benzo[b]thiophenyl (BT) flavones with a 10π-electron BT ring B replacing the usual 6π-electron phenyl ring showed potent antiproliferative activity against human tumor cell lines. Interestingly, the activity profiles against cell cycle progression of the BT-flavones totally changed depending on the combination of substituents at the C-3 and C-5 positions. This finding encouraged an extension of these studies on the impact of BT to related flavonoids, such as chalcones, isoflavones, and aurones. Accordingly, 10 isoflavones, 29 chalcones, and four aurones were synthesized and evaluated for antiproliferative activity against five human tumor cell lines including a multi-drug-resistant cell line. Among these compounds, BT-isoflavone 7, BT-chalcones 48, 52, 57, 66, and 77, and BT-aurone 80 displayed significant antiproliferative effects against all tested tumor cell lines. The structure-antiproliferative activity relationships clearly demonstrated the importance of BT instead of phenyl as ring B for the isoflavone and chalcones, but not the aurones. Flow cytometry and immunocytochemical studies demonstrated that the active BT-flavonoids led to cell cycle arrest at the prometaphase by induction of multipolar spindle formation. The present studies should contribute greatly to the synthesis and functional analysis of biologically active flavonoid derivatives for chemical space expansion.
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Affiliation(s)
- Sachika Hirazawa
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Yohei Saito
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Momoko Sagano
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Masuo Goto
- Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599-7568, United States
| | - Kyoko Nakagawa-Goto
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
- Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599-7568, United States
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2
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Saito Y, Taniguchi Y, Hirazawa S, Miura Y, Tsurimoto H, Nakayoshi T, Oda A, Hamel E, Yamashita K, Goto M, Nakagawa-Goto K. Effects of substituent pattern on the intracellular target of antiproliferative benzo[b]thiophenyl chromone derivatives. Eur J Med Chem 2021; 222:113578. [PMID: 34171512 DOI: 10.1016/j.ejmech.2021.113578] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 05/09/2021] [Accepted: 05/19/2021] [Indexed: 11/30/2022]
Abstract
A new biological scaffold was produced by replacing the 6π-electron phenyl ring-B of a natural flavone skeleton with a 10π-electron benzothiophene (BT). Since aromatic rings are important for ligand protein interactions, this expansion of the π-electron system of ring-B might change the bioactivity profile. One of the resulting novel natural product-inspired compounds, 2-(benzo[b]thiophen-3-yl)-5-hydroxy-7-isopropoxy-6-methoxyflavone (6), effectively arrested the cell cycle at the G2/M phase and displayed significant antiproliferative effects with IC50 values of 0.05-0.08 μM against multiple human tumor cell lines, including a multidrug resistant line. A structure-activity relationship study revealed that a 10π-electron system with high aromaticity, juxtaposed 4-oxo and 5-hydroxy groups, and 7-alkoxy groups were important for potent antimitotic activity. Interestingly, two BT-flavonols (3-hydroxyflavone), 16 and 20, with 3-hydroxy and 5-alkoxy groups, induced distinct biological profiles affecting the cell cycle at the G1/S phase by inhibition of DNA replication through an interaction with topoisomerase I.
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Affiliation(s)
- Yohei Saito
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Yukako Taniguchi
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Sachika Hirazawa
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Yuta Miura
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Hiroyuki Tsurimoto
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Tomoki Nakayoshi
- Graduate School of Pharmacy, Meijo University, Tempaku-ku, Nagoya, 468-8503, Japan
| | - Akifumi Oda
- Graduate School of Pharmacy, Meijo University, Tempaku-ku, Nagoya, 468-8503, Japan
| | - Ernest Hamel
- Molecular Pharmacology Branch, Developmental Therapeutics Program, Division of Cancer Treatment and Diagnosis, Frederick National Laboratory for Cancer Research, National Cancer Institute, Frederick, MD, 21702, United States
| | - Katsumi Yamashita
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Masuo Goto
- Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, 27599-7568, United States.
| | - Kyoko Nakagawa-Goto
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan; Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, 27599-7568, United States.
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3
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Saito Y, Kobayashi Y, Yoshida N, Goto M, Nakagawa-Goto K. Synthesis of Thio-lignan Analogues, Bioequivalent Salvinal without Unfavored Aldehyde. J Org Chem 2021; 86:7092-7106. [PMID: 33979157 DOI: 10.1021/acs.joc.1c00348] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The oxygen in the benzofuran (BF) of three antiproliferative natural neolignans, salvinal (1), obovaten (2), and 2-[7-methoxy-2-(4-methoxyphenyl)-3-methylbenzofuran-5-yl]ethanol (3), was replaced with sulfur to form the new biological scaffold benzothiophene (BT) thio-lignans 4-6. Compounds 1-6 and 18 synthesized derivatives were evaluated for antiproliferative activity against five human cancer cell lines, including a multidrug-resistant cell line. Thio-salvinal (4) displayed significant antiproliferative effects with half-maximal inhibitory concentration (IC50) values of 0.57-0.95 μM against all tested cell lines, except for the HER2 negative breast cancer cell line MCF-7. This thio-lignan was 6.5-9.4 times more potent than parent 1. However, the related thio-lignans, 5 and 6, showed much weaker antiproliferative effects than 4 and were less potent than the parent natural benzofuran lignans 2 and 3. Newly synthesized thio-lignan 33 affected cell cycle progression at 24 and 48 h in the G2/M transition and S phase, respectively, as well as promoted sub-G1 induction by stimulating microtubule depolymerization and nuclear fragmentation. Since a highly reactive aldehyde in salvinal is generally not appropriate for drug development, we have successfully found nonaldehyde derivative 33 showing biological activity similar to salvinal by replacing BF with BT and an aldehyde with 1,3-dioxolane.
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Affiliation(s)
- Yohei Saito
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa 920-1192, Japan
| | - Yukiko Kobayashi
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa 920-1192, Japan
| | - Nanami Yoshida
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa 920-1192, Japan
| | - Masuo Goto
- Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599-7568, United States
| | - Kyoko Nakagawa-Goto
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa 920-1192, Japan.,Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599-7568, United States
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Saito Y, Mizokami A, Izumi K, Naito R, Goto M, Nakagawa-Goto K. α-Trifluoromethyl Chalcones as Potent Anticancer Agents for Androgen Receptor-Independent Prostate Cancer. Molecules 2021; 26:2812. [PMID: 34068627 PMCID: PMC8126091 DOI: 10.3390/molecules26092812] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/06/2021] [Accepted: 05/06/2021] [Indexed: 11/16/2022] Open
Abstract
α-Trifluoromethyl chalcones were prepared and evaluated for their antiproliferative activities against androgen-independent prostate cancer cell lines as well as five additional types of human tumor cell lines. The most potent chalcone 5 showed superior antitumor activity in vivo with both oral and intraperitoneal administration at 3 mg/kg. Cell-based mechanism of action studies demonstrated that 5 induced cell accumulation at sub-G1 and G2/M phases without interfering with microtubule polymerization. Furthermore, several cancer cell growth-related proteins were identified by using chalcone 5 as a bait for the affinity purification of binding proteins.
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Affiliation(s)
- Yohei Saito
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Science, Kanazawa University, Kanazawa 920-1192, Japan;
| | - Atsushi Mizokami
- Department of Integrative Cancer Therapy and Urology, School of Medical Sciences, Kanazawa University, Kanazawa 920-1192, Japan; (K.I.); (R.N.)
| | - Kouji Izumi
- Department of Integrative Cancer Therapy and Urology, School of Medical Sciences, Kanazawa University, Kanazawa 920-1192, Japan; (K.I.); (R.N.)
| | - Renato Naito
- Department of Integrative Cancer Therapy and Urology, School of Medical Sciences, Kanazawa University, Kanazawa 920-1192, Japan; (K.I.); (R.N.)
| | - Masuo Goto
- Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA;
| | - Kyoko Nakagawa-Goto
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Science, Kanazawa University, Kanazawa 920-1192, Japan;
- Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA;
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5
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Wu MK, Man RJ, Liao YJ, Zhu HL, Zhou ZG. Discovery of novel indole-1,2,4-triazole derivatives as tubulin polymerization inhibitors. Drug Dev Res 2021; 82:1008-1020. [PMID: 33675542 DOI: 10.1002/ddr.21805] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 02/01/2021] [Accepted: 02/05/2021] [Indexed: 11/08/2022]
Abstract
A series of novel indole-1,2,4-triazole derivatives have been designed, synthesized, and evaluated as potential tubulin polymerization inhibitors. The top hit 12, bearing the 3,4,5-trimethoxyphenyl moiety, exhibited substantial anti-proliferative activity against HepG2, HeLa, MCF-7, and A549 cells in vitro with IC50 values of 0.23 ± 0.08 μM, 0.15 ± 0.18 μM, 0.38 ± 0.12 μM, and 0.30 ± 0.13 μM, respectively. It also inhibited tubulin polymerization with the IC50 value of 2.1 ± 0.12 μM, which was comparable with that of the positive controls. Furthermore, compound 12 regulated the expression of cell cycle-related proteins (Cyclin B1, Cdc25c, and Cdc2) and apoptosis-related proteins (Bcl-2, Bcl-x, and Mcl-1). Mechanistically, compound 12 could arrest cell cycle at the G2/M phase, thus induce an increase of apoptotic cell death. In addition, molecular docking hinted the possible interaction mode of compound 12 into the colchicine binding site of tubulin heterodimers. According to the applications of microtubule-targeting agents in both direct and synergistic cancer therapies, we hope this work might be of significance for future researches.
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Affiliation(s)
- Meng-Ke Wu
- Guangxi Biological Polysaccharide Separation, Purification and Modification Research Platform, Guangxi University for Nationalities, Nanning, China
| | - Ruo-Jun Man
- Guangxi Biological Polysaccharide Separation, Purification and Modification Research Platform, Guangxi University for Nationalities, Nanning, China
| | - Yan-Juan Liao
- Guangxi Biological Polysaccharide Separation, Purification and Modification Research Platform, Guangxi University for Nationalities, Nanning, China
| | - Hai-Liang Zhu
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China
| | - Zhu-Gui Zhou
- College of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Polysaccharide Materials and Modifications, Guangxi University for Nationalities, Nanning, China
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6
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Wen BY, Liang H, Guo HJ, Wu JH. Design, synthesis, and antitumor activity of desmosdumotin C analogues. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2019; 21:702-715. [PMID: 30596267 DOI: 10.1080/10286020.2018.1473383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 05/01/2018] [Accepted: 05/02/2018] [Indexed: 06/09/2023]
Abstract
Desmosdumotin C (Des C), a natural product isolated from the roots of Desmos dumosus, has shown good antitumor activity. A three dimensional quantitative structure-activity relationship (QSAR) study using the comparative molecular field analysis (CoMFA) method was performed on 32 Des C analogues. Based on the QSAR, 18 new Des C analogues were designed and synthesized. An efficient three-step synthetic strategy toward Des C and its analogues was developed from commercial available 2, 4, 6-trihydroxyacetophenone. All synthesized compounds were evaluated against a panel of human cancer cell lines and showed ED50 values ranging from 1.1 to 25.1 µΜ.
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Affiliation(s)
- Bin-Yu Wen
- a Dongfang Hospital, Beijing University of Chinese Medicine , Beijing 100078 , China
| | - Hai Liang
- b Department of Pharmacy , Beijing 100101 , China
- c Department of Pharmacy , The People's Hospital of Bozhou , Bozhou 236800 , China
| | - Hong-Ju Guo
- a Dongfang Hospital, Beijing University of Chinese Medicine , Beijing 100078 , China
- b Department of Pharmacy , Beijing 100101 , China
| | - Jiu-Hong Wu
- b Department of Pharmacy , Beijing 100101 , China
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Abstract
The first total synthesis of parvifloron F, a bioactive highly oxidized abietane diterpene, was achieved. The abietane skeleton was constructed by Lewis acid promoted cyclization. Preliminary structure-activity relationship correlations were established for the synthetic intermediates against human tumor cell lines. Certain compounds showed unique selective antiproliferative activity against triple-negative breast cancer. The oxidation level of the abietane ring affected the selectivity.
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Affiliation(s)
- Yohei Saito
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Science, Kanazawa University , Kanazawa, 920-1192, Japan
| | - Masuo Goto
- Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-7568, United States
| | - Kyoko Nakagawa-Goto
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Science, Kanazawa University , Kanazawa, 920-1192, Japan.,Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-7568, United States
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8
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Synthesis and biological evaluation of 4,6-diphenyl-2-(1H-pyrrol-1-yl)nicotinonitrile analogues of crolibulin and combretastatin A-4. Eur J Med Chem 2018; 146:185-193. [DOI: 10.1016/j.ejmech.2018.01.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 10/30/2017] [Accepted: 01/16/2018] [Indexed: 11/24/2022]
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9
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Kobayashi Y, Saito Y, Goto M, Nakagawa-Goto K. Antitubulin effects of aminobenzothiophene-substituted triethylated chromones. Bioorg Med Chem Lett 2017; 27:2731-2735. [DOI: 10.1016/j.bmcl.2017.04.055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 04/13/2017] [Accepted: 04/17/2017] [Indexed: 10/19/2022]
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10
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Discovery and Optimization of Novel 5-Indolyl-7-arylimidazo[1,2-a]pyridine-8-carbonitrile Derivatives as Potent Antitubulin Agents Targeting Colchicine-binding Site. Sci Rep 2017; 7:43398. [PMID: 28240326 PMCID: PMC5327470 DOI: 10.1038/srep43398] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 01/24/2017] [Indexed: 12/19/2022] Open
Abstract
Aiming at development of potent antitubulin agents targeting colchicine-binding site, a series of novel 5-indolyl-7-arylimidazo[1,2-a]pyridine-8-carbonitrilederivatives (5a–5v and 7a–7h) were designed based on bioisosterism and hybridization strategies. All these compounds were concisely synthesized via a three-step process and examined against five human cancer cell lines (HT-29, A549, MKN-45, MDA-MB-231 and SMMC-7721) along with a normal human cell (L02) in vitro. A structure-activity relationships (SARs) study was carried out and optimization towards this series of compounds in cellular assay resulted in the discovery of 5k, which displayed similar or better antitumor potency against the tested cancer cells with IC50 value ranging from 0.02 to 1.22 μM superior to CA-4 and Crolibulin. Significantly, a cell cycle study disclosed the ability of 5k to arrest cell cycle at the G2/M phase, and immunofluorescence assay as well as a colchicine competition assay revealed that tubulin polymerization was disturbed by 5k by binding to the colchicine site. Moreover, the molecular modeling mode showed the posture of 5k and Crolibulin was similar in the colchcine-binding pocket of tubulin as identified with the SARs and pharmacological results. Together, all these results rationalized 5k might serve as a promising lead for a novel class of antitubulin agents for cancer treatments.
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11
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Triethylated chromones with substituted naphthalenes as tubulin inhibitors. Bioorg Med Chem 2016; 24:6048-6057. [PMID: 27707623 DOI: 10.1016/j.bmc.2016.09.062] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 09/23/2016] [Accepted: 09/24/2016] [Indexed: 01/21/2023]
Abstract
Previously synthesized 2-(benzo[b]thiophene-3'-yl)-6,8,8-triethyldesmosdumotin B (1, TEDB-TB) and 2-(naphth-1'-yl)-6,8,8-triethyldesmosdumotin B (2) showed potent activity against multiple human tumor cell lines, including a multidrug-resistant (MDR) subline, by targeting spindle formation and/or the microtubule network. Consequently, ester analogues of hydroxylated naphthyl substituted TEBDs (3-5) were prepared and evaluated for their effects on tumor cell proliferation and on tubulin assembly. Among all new compounds, compound 6, a 4'-acetoxynaphthalen-1'-yl derivative, displayed the most potent antiproliferative activity (IC50 0.2-5.7μM). Selected analogues were confirmed to be tubulin assembly inhibitors in cell-free and cell-based assays using MDR tumor cells. The new analogues partially inhibited colchicine binding to tubulin, suggesting their binding mode would be different from that of colchicine. This observation was supported by computational docking model analyses. Thus, the newly synthesized triethylated chromones with esterified naphthalene groups have good potential for development as a new class of mitotic inhibitors that target tubulin.
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Zhang YL, Qin YJ, Tang DJ, Yang MR, Li BY, Wang YT, Cai HY, Wang BZ, Zhu HL. Synthesis and Biological Evaluation of 1-Methyl-1H-indole-Pyrazoline Hybrids as Potential Tubulin Polymerization Inhibitors. ChemMedChem 2016; 11:1446-58. [DOI: 10.1002/cmdc.201600137] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 04/03/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Ya-Liang Zhang
- State Key Laboratory of Pharmaceutical Biotechnology; Nanjing University; Nanjing 210023 P.R. China
| | - Ya-Juan Qin
- State Key Laboratory of Pharmaceutical Biotechnology; Nanjing University; Nanjing 210023 P.R. China
| | - Dan-Jie Tang
- State Key Laboratory of Pharmaceutical Biotechnology; Nanjing University; Nanjing 210023 P.R. China
| | - Meng-Ru Yang
- State Key Laboratory of Pharmaceutical Biotechnology; Nanjing University; Nanjing 210023 P.R. China
| | - Bo-Yan Li
- State Key Laboratory of Pharmaceutical Biotechnology; Nanjing University; Nanjing 210023 P.R. China
| | - Yan-Ting Wang
- State Key Laboratory of Pharmaceutical Biotechnology; Nanjing University; Nanjing 210023 P.R. China
| | - Hong-Yu Cai
- State Key Laboratory of Pharmaceutical Biotechnology; Nanjing University; Nanjing 210023 P.R. China
| | - Bao-Zhong Wang
- State Key Laboratory of Pharmaceutical Biotechnology; Nanjing University; Nanjing 210023 P.R. China
| | - Hai-Liang Zhu
- State Key Laboratory of Pharmaceutical Biotechnology; Nanjing University; Nanjing 210023 P.R. China
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13
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Yang MR, Qin YJ, Chen C, Zhang YL, Li BY, Liu TB, Gong HB, Wang BZ, Zhu HL. Synthesis, biological evaluation and molecular docking studies of novel 1-(4,5-dihydro-1H-pyrazol-1-yl)ethanone-containing 1-methylindol derivatives as potential tubulin assembling inhibitors. RSC Adv 2016. [DOI: 10.1039/c5ra28141e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of novel compounds (6a–6v) containing 1-methylindol and 1-(4,5-dihydro-1H-pyrazol-1-yl)ethanone skeleton were designed, synthesized and evaluated as potential anticancer agents.
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Affiliation(s)
- Meng-Ru Yang
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210093
- People's Republic of China
| | - Ya-Juan Qin
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210093
- People's Republic of China
| | - Chen Chen
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210093
- People's Republic of China
| | - Ya-Liang Zhang
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210093
- People's Republic of China
| | - Bo-Yan Li
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210093
- People's Republic of China
| | - Tian-Bao Liu
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210093
- People's Republic of China
| | - Hai-Bin Gong
- Xuzhou Central Hospital
- Xuzhou 221009
- People's Republic of China
| | - Bao-Zhong Wang
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210093
- People's Republic of China
| | - Hai-Liang Zhu
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210093
- People's Republic of China
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14
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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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15
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Nakagawa-Goto K, Oda A, Hamel E, Ohkoshi E, Lee KH, Goto M. Development of a novel class of tubulin inhibitor from desmosdumotin B with a hydroxylated bicyclic B-ring. J Med Chem 2015; 58:2378-89. [PMID: 25695315 DOI: 10.1021/jm501859j] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A series of newly synthesized hydroxylated analogues of triethyldesmosdumotin B (TEDB) with a bicyclic B-ring exhibited a significantly different mode of action for affecting microtubule dynamics and spindle formation but had the same antiproliferative activity spectrum, including activity against multidrug-resistant tumors. These analogues efficiently induced cell cycle arrest at prometaphase and caused formation of immature multipolar spindles. 6'-Hydroxyl TEDB-TB (8) disrupted bipolar spindle formation but had a negligible effect on interphase microtubules. On the basis of the predicted binding modes of the new compounds with tubulin dimer, compound 4 forms three hydrogen bonds (H-bonds) only with α-tubulin at the colchicine site; in contrast, 8 forms H-bonds with both α- and β-tubulin. We predict that, when a compound/ligand, such as 8, forms H-bonds to both α- and β-tubulins, spindle formation is disrupted more than the dynamics of interphase microtubules. This result may reflect the well-known greater dynamicity of spindle microtubules as compared with interphase microtubules.
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Affiliation(s)
- Kyoko Nakagawa-Goto
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University , Kanazawa, 920-1192, Japan
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16
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Wang F, Wang X, Zhang MX, Yang YH, Zhu HL. Synthesis, biological evaluation and molecular modeling of 1H-benzo[d]imidazole derivatives as novel anti-tubulin polymerization agents. RSC Adv 2015. [DOI: 10.1039/c5ra13746b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
A series of novel compounds (8a–21b) were designed and synthesized based on 2-phenyl-1H-benzo[d]imidazole. Compound 18b showed the most potent in vitro growth inhibitory activity and significant tubulin polymerization inhibitory activity.
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Affiliation(s)
- Fang Wang
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210023
- People's Republic of China
| | - Xue Wang
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210023
- People's Republic of China
| | - Min-Xia Zhang
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210023
- People's Republic of China
| | - Yong-Hua Yang
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210023
- People's Republic of China
| | - Hai-Liang Zhu
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210023
- People's Republic of China
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17
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Synthesis, antiproliferative activity, and in silico insights of new 3-benzoylamino-benzo[b]thiophene derivatives. Eur J Med Chem 2014; 90:537-46. [PMID: 25486425 DOI: 10.1016/j.ejmech.2014.12.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 11/29/2014] [Accepted: 12/01/2014] [Indexed: 11/21/2022]
Abstract
A new series of 3-benzoylamino-5-imidazol-5-yl-benzo[b]thiophenes and the parent amino derivatives were synthesized and screened as antitumor agents. All tested compounds showed concentration-dependent antiproliferative activity profile against HeLa cell line, exhibiting GI50 values in the low micromolar range. The most active compounds were tested in cell cycle perturbation experiments. A rapid accumulation of cells in the G2/M phase, with a concomitant reduction of cells in both the S and G0/G1 phases, was observed, suggesting that cell exposure to selected derivatives produces mitotic failure. To rationalize the biological results, the 3-benzoylamino-benzo[b]thiophenes were analyzed through the in silico VLAK protocol. Compounds presenting the 3,4,5-trimethoxy-benzoyl moiety were in silico classified as potential antimitotic agents or topoisomerase II inhibitors, in good agreement with the biological studies.
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18
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Li YJ, Qin YJ, Makawana JA, Wang YT, Zhang YQ, Zhang YL, Yang MR, Jiang AQ, Zhu HL. Synthesis, biological evaluation and molecular modeling of 1,3,4-thiadiazol-2-amide derivatives as novel antitubulin agents. Bioorg Med Chem 2014; 22:4312-22. [PMID: 24909678 DOI: 10.1016/j.bmc.2014.05.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2014] [Revised: 05/09/2014] [Accepted: 05/10/2014] [Indexed: 11/25/2022]
Abstract
A series of 1,3,4-thiadiazol-2-amide derivatives (6a-w) were designed and synthesized as potential inhibitors of tubulin polymerization and as anticancer agents. The in vitro anticancer activities of these compounds were evaluated against three cancer cell lines by the MTT method. Among all the designed compounds, compound 6f exhibited the most potent anticancer activity against A549, MCF-7 and HepG2 cancer cell lines with IC₅₀ values of 0.03 μM, 0.06 μM and 0.05 μM, respectively. Compound 6f also exhibited significant tubulin polymerization inhibitory activity (IC₅₀=1.73 μM), which was superior to the positive control. The obtained results, along with a 3D-QSAR study and molecular docking that were used for investigating the probable binding mode, could provide an important basis for further optimization of compound 6f as a novel anticancer agent.
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Affiliation(s)
- Yu-Jing Li
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210093, PR China; School of Medicine, Nanjing University, Nanjing 210093, PR China.
| | - Ya-Juan Qin
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210093, PR China; School of Medicine, Nanjing University, Nanjing 210093, PR China.
| | - Jigar A Makawana
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210093, PR China; School of Medicine, Nanjing University, Nanjing 210093, PR China.
| | - Yan-Ting Wang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210093, PR China; School of Medicine, Nanjing University, Nanjing 210093, PR China.
| | - Yan-Qing Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210093, PR China; School of Medicine, Nanjing University, Nanjing 210093, PR China.
| | - Ya-Liang Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210093, PR China; School of Medicine, Nanjing University, Nanjing 210093, PR China.
| | - Meng-Ru Yang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210093, PR China; School of Medicine, Nanjing University, Nanjing 210093, PR China.
| | - Ai-Qin Jiang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210093, PR China; School of Medicine, Nanjing University, Nanjing 210093, PR China.
| | - Hai-Liang Zhu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210093, PR China; School of Medicine, Nanjing University, Nanjing 210093, PR China.
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19
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Szakács G, Hall MD, Gottesman MM, Boumendjel A, Kachadourian R, Day BJ, Baubichon-Cortay H, Di Pietro A. Targeting the Achilles heel of multidrug-resistant cancer by exploiting the fitness cost of resistance. Chem Rev 2014; 114:5753-74. [PMID: 24758331 PMCID: PMC4059772 DOI: 10.1021/cr4006236] [Citation(s) in RCA: 152] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Gergely Szakács
- Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences , Magyar tudósok körútja 2, Budapest 1117, Hungary
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20
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Wei S, Tang YB, Hua H, Ohkoshi E, Goto M, Wang LT, Lee KH, Xiao Z. Discovery of novel andrographolide derivatives as cytotoxic agents. Bioorg Med Chem Lett 2013; 23:4056-60. [DOI: 10.1016/j.bmcl.2013.05.061] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Revised: 05/05/2013] [Accepted: 05/18/2013] [Indexed: 11/27/2022]
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21
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Zhao Y, Su J, Goto M, Morris-Natschke SL, Li Y, Zhao QS, Yao ZJ, Lee KH. Dual-functional abeo-taxane derivatives destabilizing microtubule equilibrium and inhibiting NF-κB activation. J Med Chem 2013; 56:4749-57. [PMID: 23725535 DOI: 10.1021/jm400479p] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Taxchinin A, with a 11(15→1)-abeo-taxane skeleton, is a major, but inactive taxoid contained in leaves of Taxus chinensis . In our design of dual-functional antitumor abeo-taxane derivatives, two fragments from antitumor agents with different molecular targets (the N-acyl-3'-phenylisoserine side chain from the antimitotic agent paclitaxel and an α,β-unsaturated carbonyl system from NF-κB inhibitors) were incorporated into the scaffold of taxchinin A. The resulting compounds displayed broad inhibitory effects against proliferation of tumor cell lines, with notable selectivity toward colon cancer, melanoma, and renal cancer, when evaluated in the NCI-60 human tumor cell line screening panel. On the basis of the NCI-60 assay data, structure-activity relationship (SAR) correlations were elucidated. Mechanistic studies indicated that this new compound type can both destabilize microtubules and inhibit NF-κB activation, thereby inducing tumor cell apoptosis. This first report of the dual-functional taxoid-core compounds thus provides new opportunities for future drug development based on natural axoid scaffolds.
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Affiliation(s)
- Yu Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China
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22
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Lu Y, Chen J, Xiao M, Li W, Miller DD. An overview of tubulin inhibitors that interact with the colchicine binding site. Pharm Res 2012; 29:2943-71. [PMID: 22814904 DOI: 10.1007/s11095-012-0828-z] [Citation(s) in RCA: 542] [Impact Index Per Article: 45.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Accepted: 07/05/2012] [Indexed: 12/13/2022]
Abstract
Tubulin dynamics is a promising target for new chemotherapeutic agents. The colchicine binding site is one of the most important pockets for potential tubulin polymerization destabilizers. Colchicine binding site inhibitors (CBSI) exert their biological effects by inhibiting tubulin assembly and suppressing microtubule formation. A large number of molecules interacting with the colchicine binding site have been designed and synthesized with significant structural diversity. CBSIs have been modified as to chemical structure as well as pharmacokinetic properties, and tested in order to find a highly potent, low toxicity agent for treatment of cancers. CBSIs are believed to act by a common mechanism via binding to the colchicine site on tubulin. The present review is a synopsis of compounds that have been reported in the past decade that have provided an increase in our understanding of the actions of CBSIs.
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Affiliation(s)
- Yan Lu
- Department of Pharmaceutical Sciences, Health Science Center, University of Tennessee, 847 Monroe Ave, Memphis, TN 38163, USA
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23
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Massarotti A, Coluccia A, Silvestri R, Sorba G, Brancale A. The Tubulin Colchicine Domain: a Molecular Modeling Perspective. ChemMedChem 2011; 7:33-42. [DOI: 10.1002/cmdc.201100361] [Citation(s) in RCA: 121] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 09/14/2011] [Indexed: 01/24/2023]
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24
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Nakagawa-Goto K, Bastow KF, Ohkoshi E, Morris-Natschke SL, Lee KH. Antitumor Agents 291 Expanded B-Ring Modification Study of 6,8,8-Triethyl Desmosdumotin B Analogues as Multidrug-Resistance Selective Agents. Med Chem 2011; 1. [PMID: 23293751 DOI: 10.4172/2161-0444.1000101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Drug usefulnessis frequently obstructed by the incidence of the multidrug resistance (MDR) phenotype and severe adverse effects. Exploiting collateral sensitive(CS)agents (in this case also called MDR-selective agents), which selectively target only MDR cells, is an emerging and novel approach to overcome MDR in cancer treatment. In prior studies, we found that 4'-methyl-6,6,8-triethyldesmosdumotin B (4'-Me-TEDB, 2) is an MDR-selective synthetic flavonoid with significant in vitro anticancer activity against a MDR cell line (KB-Vin) but without activity against the parent cells (KB) as well as other non-MDR tumor cells. Our recent results suggest the absolute MDR-selectivity varies depending on the cell-line system. In order to explore this further and to better understand the critical pharmacophores, we have synthesized nine novel analogues of 2, which contain heteroaromatic as well ascycloalkyl B-rings. The new compounds were evaluated for cytotoxicity to explore the effect of B-ring modifications on MDR-selectivity. All analogues, except 7, 9 and 10, were identified as significant MDR-selective compounds. This observation solidifies the importance of the 5-hydroxy-6,8,8-trialkyl-4H-chromene-4,7(8H)-dione skeleton (AC-ring system) for the pharmacological activity and establishes the B-ring as less critical for the broader spectrum MDR-selectivity. Notably, 3-furanyl (3)and 2-thiophenyl (6)analogues displayed substantial MDR-selectivity with KB/KB-Vin ratios of >12 and 16, respectively. Furthermore, 3 and 6 also exhibited MDR-selectivity in a second set of paired cell lines, the MDR/non-MDR hepatoma-cell system. Interestingly, a cyclohexyl analogue (11) showed moderate inhibition of A549, DU145, and PC-3 cell growth, while the other compounds were inactive. These new findings are discussed in terms of current understanding of mechanism and structure-activity relationship (SAR) of our novel MDR-selective flavonoids.
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Affiliation(s)
- Kyoko Nakagawa-Goto
- Natural Products Research Laboratories, EshelmanSchool of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
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