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Ibrahim BT, Allam HA, El-Dydamony NM, Fouad MA, Mohammed ER. Exploring new quinazolin-4(3H)-one derivatives as CDK2 inhibitors: Design, synthesis, and anticancer evaluation. Drug Dev Res 2024; 85:e22163. [PMID: 38419305 DOI: 10.1002/ddr.22163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/13/2024] [Accepted: 02/10/2024] [Indexed: 03/02/2024]
Abstract
In the present work, five series of new 2,3-disubstituted quinazolin-4(3H)-ones 4a-c, 5a-d, 6a-g, 7a,b, and 9a-c were designed, synthesized, and screened in vitro for their cytotoxic activity against 60 cancer cell lines by the National Cancer Institute, USA. Five candidates 4c, 6a, 6b, 6d, and 6g revealed promising cytotoxicity with significant percentage growth inhibition in the range of 81.98%-96.45% against the central nervous system (CNS) (SNB-19), melanoma (MDA-MB-435), and non-small cell lung cancer (HOP-62) cell lines. The in vitro cytotoxic half maximal inhibitory concentration (IC50 ) values for the most active compounds 4c, 6a, 6b, 6d, and 6g against the most sensitive cell lines were evaluated. Additionally, screening their cyclin-dependent kinase 2 (CDK2) inhibitory activity was performed. Ortho-chloro-benzylideneamino derivative 6b emerged as the most potent compound with IC50 = 0.67 µM compared to Roscovitine (IC50 = 0.64 µM). The most active candidates arrested the cell cycle at G1, S phases, or both, leading to cell death and inducing apoptosis against CNS (SNB-19), melanoma (MDA-MB-435), and non-small cell lung cancer (HOP-62) cell lines. The molecular docking study verified the resulting outcomes for the most active candidates in the CDK2-binding pocket. Finally, physicochemical, and pharmacokinetic properties deduced that compounds 4c, 6a, 6b, 6d, and 6g displayed significant drug-likeness properties. According to the obtained results, the newly targeted compounds are regarded as promising scaffolds for the continued development of novel CDK2 inhibitors.
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Affiliation(s)
- Basant T Ibrahim
- Pharmaceutical Chemistry Department, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, 6th of October City, Egypt
| | | | - Nehad M El-Dydamony
- Pharmaceutical Chemistry Department, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, 6th of October City, Egypt
| | - Marwa A Fouad
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Cairo, Egypt
- Pharmaceutical Chemistry Department, New Giza University, Cairo, Egypt
| | - Eman R Mohammed
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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2
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Design, synthesis, and biological evaluation of novel 7-substituted 10,11-methylenedioxy-camptothecin derivatives against drug-resistant small-cell lung cancer in vitro and in vivo. Eur J Med Chem 2022; 241:114610. [DOI: 10.1016/j.ejmech.2022.114610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 06/30/2022] [Accepted: 07/10/2022] [Indexed: 11/20/2022]
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3
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Wang Y, Zhang X, Zhuang W, Yu Y, Sun X, Wang H, Li F, Li Q. Investigation of the Uptake and Transport of Two Novel Camptothecin Derivatives in Caco-2 Cell Monolayers. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123669. [PMID: 35744795 PMCID: PMC9230870 DOI: 10.3390/molecules27123669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/02/2022] [Accepted: 06/03/2022] [Indexed: 02/07/2023]
Abstract
Irinotecan and Topotecan are two Camptothecin derivatives (CPTs) whose resistance is associated with the high expression of breast cancer resistance protein (BCRP) and P-glycoprotein (P-gp). To reverse this resistance, two novel CPTs, FL77-28 (7-(3-Fluoro-4-methylphenyl)-10,11-methylenedioxy-20(S)-CPT) and FL77-29 (7-(4-Fluoro-3-methylphenyl)-10,11-methylenedioxy-20(S)-CPT), were synthesized by our group. In this study, the anti-tumor activities of FL77-28, FL77-29, and their parent, FL118 (10,11-methylenedioxy-20(S)-CPT), were evaluated and the results showed that FL77-28 and FL77-29 had stronger anti-tumor activities than FL118. The transport and uptake of FL118, FL77-28, and FL77-29 were investigated in Caco-2 cells for the preliminary prediction of intestinal absorption. The apparent permeability coefficient from apical to basolateral (Papp AP-BL) values of FL77-28 and FL77-29 were (2.32 ± 0.04) × 10−6 cm/s and (2.48 ± 0.18) × 10−6 cm/s, respectively, suggesting that the compounds had moderate absorption. Since the transport property of FL77-28 was passive diffusion and the efflux ratio (ER) was less than 2, two chemical inhibitors were added to further confirm the involvement of efflux proteins. The results showed that FL77-28 was not a substrate of P-gp or BCRP, but FL77-29 was mediated by P-gp. In conclusion, FL77-28 might be a promising candidate to overcome drug resistance induced by multiple efflux proteins.
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Affiliation(s)
- Yi Wang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China; (Y.W.); (X.Z.); (W.Z.); (Y.Y.); (X.S.); (H.W.)
| | - Xiangli Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China; (Y.W.); (X.Z.); (W.Z.); (Y.Y.); (X.S.); (H.W.)
| | - Wenya Zhuang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China; (Y.W.); (X.Z.); (W.Z.); (Y.Y.); (X.S.); (H.W.)
| | - Yanlei Yu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China; (Y.W.); (X.Z.); (W.Z.); (Y.Y.); (X.S.); (H.W.)
| | - Xuanrong Sun
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China; (Y.W.); (X.Z.); (W.Z.); (Y.Y.); (X.S.); (H.W.)
| | - Hong Wang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China; (Y.W.); (X.Z.); (W.Z.); (Y.Y.); (X.S.); (H.W.)
| | - Fengzhi Li
- Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA;
| | - Qingyong Li
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China; (Y.W.); (X.Z.); (W.Z.); (Y.Y.); (X.S.); (H.W.)
- Correspondence: ; Tel./Fax: +86-571-8832-0984
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4
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Chini MG, Lauro G, Bifulco G. Addressing the Target Identification and Accelerating the Repositioning of Anti‐Inflammatory/Anti‐Cancer Organic Compounds by Computational Approaches. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100245] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Maria Giovanna Chini
- Department of Biosciences and Territory University of Molise C.da Fonte Lappone 86090 Pesche (IS) Italy
| | - Gianluigi Lauro
- Department of Pharmacy University of Salerno Via Giovanni Paolo II 132 84084 Fisciano (SA) Italy
| | - Giuseppe Bifulco
- Department of Pharmacy University of Salerno Via Giovanni Paolo II 132 84084 Fisciano (SA) Italy
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5
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Song ZL, Yang GZ, Li JC, Liu YQ, Yang CJ, Goto M, Zhang ZJ, Morris-Natschke SL, Liu H, Lee KH. Design and synthesis of novel 7-[( N-substituted-thioureidopiperazinyl)-methyl]-camptothecin derivatives as potential cytotoxic agents. Nat Prod Res 2019; 34:2022-2029. [PMID: 30784310 DOI: 10.1080/14786419.2019.1573231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
As part of continuing our research on diverse C-7 derivatives of camptothecin (CPT), 16 CPT derivatives bearing piperazinyl-thiourea chemical scaffold and different substituent groups have been designed, synthesized and evaluated in vitro for cytotoxicity against five tumor cell lines (A-549, MDA-MB-231, MCF-7, KB and KBvin). As a result, all the synthesized compounds showed promising in vitro cytotoxic activity against the five tumor cell lines tested, and were more potent than irinotecan. Importantly, compounds 13 g (IC50 = 0.514 μM) and 13o (IC50 = 0.275 μM) possessed similar or better antiproliferative activity against the multidrug-resistant (MDR) KBvin subline than that of topotecan (IC50 = 0.511 μM) and merit further development as anticancer candidates for clinical trail. With these results in hand, we have a reason to conclude that incorporating piperazinyl-thiourea motifs into position-7 of camptothecin confers well cytotoxic activity against cancer cell lines, probably resulting in new anticancer drugs.
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Affiliation(s)
- Zi-Long Song
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Guan-Zhou Yang
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Jun-Cai Li
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Ying-Qian Liu
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Chen-Jie Yang
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Masuo Goto
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Zhi-Jun Zhang
- 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, USA
| | - Hua Liu
- School of Pharmacy, 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, USA.,Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung, Taiwan
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6
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Two novel camptothecin derivatives inhibit colorectal cancer proliferation via induction of cell cycle arrest and apoptosis in vitro and in vivo. Eur J Pharm Sci 2018; 123:546-559. [DOI: 10.1016/j.ejps.2018.08.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 07/13/2018] [Accepted: 08/13/2018] [Indexed: 12/22/2022]
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7
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Yang CJ, Song ZL, Goto M, Liu YQ, Hsieh KY, Morris-Natschke SL, Zhao YL, Zhang JX, Lee KH. Design, synthesis, and cytotoxic activity of novel 7-substituted camptothecin derivatives incorporating piperazinyl-sulfonylamidine moieties. Bioorg Med Chem Lett 2017; 27:3959-3962. [PMID: 28789891 DOI: 10.1016/j.bmcl.2017.07.078] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 07/26/2017] [Accepted: 07/28/2017] [Indexed: 11/28/2022]
Abstract
In our continuing search for camptothecin (CPT)-derived antitumor drugs, novel 7-substituted CPT derivatives incorporating piperazinyl-sulfonylamidine moieties were designed, synthesized and evaluated for cytotoxicity against five tumor cell lines (A-549, MDA-MB-231, MCF-7, KB, and KB-VIN). All of the derivatives showed promising in vitro cytotoxic activity against the tested tumor cell lines, and were more potent than irinotecan. Remarkably, most of the compounds exhibited comparable cytotoxicity against the multidrug-resistant (MDR) KB-VIN and parental KB tumor cell lines, while irinotecan lost activity completely against KB-VIN. Especially, compounds 13r and 13p (IC50 0.38 and 0.85μM, respectively) displayed the greatest cytotoxicity against the MDR KB-VIN cell line and merit further development into preclinical and clinical drug candidates for treating cancer, including MDR phenotype.
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Affiliation(s)
- Cheng-Jie Yang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, PR China
| | - Zi-Long Song
- 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
| | - Ying-Qian Liu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, PR China.
| | - Kan-Yen Hsieh
- 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
| | - Yong-Long Zhao
- School of Pharmacy, Lanzhou University, Lanzhou 730000, PR China
| | - Jun-Xiang Zhang
- 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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8
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Liu YQ, Li WQ, Morris-Natschke SL, Qian K, Yang L, Zhu GX, Wu XB, Chen AL, Zhang SY, Nan X, Lee KH. Perspectives on biologically active camptothecin derivatives. Med Res Rev 2015; 35:753-89. [PMID: 25808858 DOI: 10.1002/med.21342] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Camptothecins (CPTs) are cytotoxic natural alkaloids that specifically target DNA topoisomerase I. Research on CPTs has undergone a significant evolution from the initial discovery of CPT in the late 1960s through the study of synthetic small-molecule derivatives to investigation of macromolecular constructs and formulations. Over the past years, intensive medicinal chemistry efforts have generated numerous CPT derivatives. Three derivatives, topotecan, irinotecan, and belotecan, are currently prescribed as anticancer drugs, and several related compounds are now in clinical trials. Interest in other biological effects, besides anticancer activity, of CPTs is also growing exponentially, as indicated by the large number of publications on the subject during the last decades. Therefore, the main focus of the present review is to provide an ample but condensed overview on various biological activities of CPT derivatives, in addition to continued up-to-date coverage of anticancer effects.
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Affiliation(s)
- Ying-Qian Liu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, P. R. China.,Provincial Engineering Laboratory of Biopesticide Preparation, Zhejiang A&F University, Lin'an 311300, P. R. China
| | - Wen-Qun Li
- School of Pharmacy, Lanzhou University, Lanzhou 730000, P. R. China
| | - Susan L Morris-Natschke
- Natural Products Research Laboratories, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, 27599
| | - Keduo Qian
- Natural Products Research Laboratories, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, 27599
| | - Liu Yang
- Environmental and Municipal Engineering School, Lanzhou Jiaotong University, Lanzhou, 730000, P. R. China
| | - Gao-Xiang Zhu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiao-Bing Wu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, P. R. China
| | - An-Liang Chen
- Provincial Engineering Laboratory of Biopesticide Preparation, Zhejiang A&F University, Lin'an 311300, P. R. China
| | - Shao-Yong Zhang
- Provincial Engineering Laboratory of Biopesticide Preparation, Zhejiang A&F University, Lin'an 311300, P. R. China
| | - Xiang Nan
- School of Pharmacy, Lanzhou University, Lanzhou 730000, P. R. China
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, 27599.,Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, 40447, Taiwan
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9
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Rodriguez-Berna G, Cabañas MJD, Mangas-Sanjuán V, Gonzalez-Alvarez M, Gonzalez-Alvarez I, Abasolo I, Schwartz S, Bermejo M, Corma A. Semisynthesis, cytotoxic activity, and oral availability of new lipophilic 9-substituted camptothecin derivatives. ACS Med Chem Lett 2013; 4:651-5. [PMID: 24900725 DOI: 10.1021/ml400125z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Accepted: 05/28/2013] [Indexed: 11/29/2022] Open
Abstract
Despite that 9-substituted camptothecins are promising candidates in cancer therapy, the limited accessibility to this position has reduced the studies of these derivatives to a few standard modifications. We report herein a novel semisynthetic route based on the Tscherniac-Einhorn reaction to synthesize new lipophilic camptothecin derivatives with amidomethyl and imidomethyl substitutions in position 9. Compounds were evaluated for their antiproliferative activity, topoisomerase I inhibition, and oral availability. Preliminary data demonstrated that bulky imidomethyl modification is an appropriate lipophilic substitution for an effective oral administration relative to topotecan. In addition, this general procedure paves the way for obtaining new camptothecin derivatives.
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Affiliation(s)
- Guillermo Rodriguez-Berna
- Instituto Mixto de Tecnología
Química, Universidad Politécnica de Valencia-Consejo Superior de Investigaciones Científicas (UPV-CSIC), Avd. de los Naranjos s/n, 46006 Valencia, Spain
| | - Maria Jose Díaz Cabañas
- Instituto Mixto de Tecnología
Química, Universidad Politécnica de Valencia-Consejo Superior de Investigaciones Científicas (UPV-CSIC), Avd. de los Naranjos s/n, 46006 Valencia, Spain
| | - Victor Mangas-Sanjuán
- Depto. de Ingeniería, Área Farmacia
y Tecnología Farmacéutica, Universidad Miguel Hernández, Carretera Alicante-Valencia
km. 87, 03550 San Juan, Alicante, Spain
| | - Marta Gonzalez-Alvarez
- Depto. de Ingeniería, Área Farmacia
y Tecnología Farmacéutica, Universidad Miguel Hernández, Carretera Alicante-Valencia
km. 87, 03550 San Juan, Alicante, Spain
| | - Isabel Gonzalez-Alvarez
- Depto. de Ingeniería, Área Farmacia
y Tecnología Farmacéutica, Universidad Miguel Hernández, Carretera Alicante-Valencia
km. 87, 03550 San Juan, Alicante, Spain
| | - Ibane Abasolo
- CIBBIM-Nanomedicine, Hospital Universitari Vall d’Hebrón
and Vall d’Hebrón Institut de Recerca, Universitat Autónoma de Barcelona, 08035 Barcelona,
Spain
| | - Simó Schwartz
- CIBBIM-Nanomedicine, Hospital Universitari Vall d’Hebrón
and Vall d’Hebrón Institut de Recerca, Universitat Autónoma de Barcelona, 08035 Barcelona,
Spain
| | - Marival Bermejo
- Depto. de Ingeniería, Área Farmacia
y Tecnología Farmacéutica, Universidad Miguel Hernández, Carretera Alicante-Valencia
km. 87, 03550 San Juan, Alicante, Spain
| | - Avelino Corma
- Instituto Mixto de Tecnología
Química, Universidad Politécnica de Valencia-Consejo Superior de Investigaciones Científicas (UPV-CSIC), Avd. de los Naranjos s/n, 46006 Valencia, Spain
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10
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Huang Q, Wang L, Lu W. Evolution in medicinal chemistry of E-ring-modified Camptothecin analogs as anticancer agents. Eur J Med Chem 2013; 63:746-57. [DOI: 10.1016/j.ejmech.2013.01.058] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2012] [Revised: 01/13/2013] [Accepted: 01/16/2013] [Indexed: 12/24/2022]
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11
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Cincinelli R, Musso L, Dallavalle S, Artali R, Tinelli S, Colangelo D, Zunino F, De Cesare M, Beretta GL, Zaffaroni N. Design, modeling, synthesis and biological activity evaluation of camptothecin-linked platinum anticancer agents. Eur J Med Chem 2013; 63:387-400. [PMID: 23517728 DOI: 10.1016/j.ejmech.2013.02.022] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 02/14/2013] [Accepted: 02/19/2013] [Indexed: 02/07/2023]
Abstract
The design, modeling, synthesis and biological activity evaluation of two hybrid agents formed by 7-oxyiminomethylcamptothecin derivatives and diaminedichloro-platinum (II) complex are reported. The compounds showed growth inhibitory activity against a panel of human tumor cell lines, including sublines resistant to topotecan and platinum compounds. The derivatives were active in all the tested cell lines, and compound 1b, the most active one, was able to overcome cisplatin resistance in the osteosarcoma U2OS/Pt cell line. Platinum-containing camptothecins produced platinum-DNA adducts and topoisomerase I-mediated DNA damage with cleavage pattern and persistence similar to SN38, the active principle of irinotecan. Compound 1b exhibited an appreciable antitumor activity in vivo against human H460 tumor xenograft, comparable to that of irinotecan at lower well-tolerated dose levels and superior to cisplatin. The results support the interpretation that the diaminedichloro-platinum (II) complex conjugated via an oxyiminomethyl linker at the 7-position of the camptothecin resulted in a new class of effective antitumor compounds.
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Affiliation(s)
- Raffaella Cincinelli
- Department of Food, Environmental and Nutritional Sciences, Division of Chemistry and Molecular Biology, Università di Milano, Via Celoria 2, 20133 Milano, Italy
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12
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Lauro G, Romano A, Riccio R, Bifulco G. Inverse virtual screening of antitumor targets: pilot study on a small database of natural bioactive compounds. JOURNAL OF NATURAL PRODUCTS 2011; 74:1401-7. [PMID: 21542600 DOI: 10.1021/np100935s] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
An inverse virtual screening in silico approach has been applied to natural bioactive molecules to screen their efficacy against proteins involved in cancer processes, with the aim of directing future experimental assays. Docking studies were performed on a panel of 126 protein targets extracted from the Protein Data Bank, to analyze their possible interactions with a small library of 43 bioactive compounds. Analysis of the molecular docking results was performed through the use of tables containing energy data organized in a matrix. The application of this approach may facilitate the prediction of the activity of unknown ligands for known targets involved in the development of cancer and could be applied to other models based on different libraries of ligands and different panels of targets.
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Affiliation(s)
- Gianluigi Lauro
- Dipartimento di Scienze Farmaceutiche e Biomediche, Università di Salerno, Via Ponte Don Melillo, 84084 Fisciano (SA), Italy
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13
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Ricci A, Marinello J, Bortolus M, Sánchez A, Grandas A, Pedroso E, Pommier Y, Capranico G, Maniero AL, Zagotto G. Electron paramagnetic resonance (EPR) study of spin-labeled camptothecin derivatives: a different look of the ternary complex. J Med Chem 2011; 54:1003-9. [PMID: 21254781 DOI: 10.1021/jm101232t] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Camptothecin (CPT) derivatives are clinically effective poisons of DNA topoisomerase I (Top1) able to form a ternary complex with the Top1-DNA complex. The aim of this investigation was to examine the dynamic aspects of the ternary complex formation by means of site-directed spin labeling electron paramagnetic resonance (SDSL-EPR). Two semisynthetic CPT derivatives bearing the paramagnetic moiety were synthesized, and their biological activity was tested. A 22-mer DNA oligonucleotide sequence with high affinity cleavage site for Top1 was also synthesized. EPR experiments were carried out on modified CPT in the presence of DNA, of Top1, or of both. In the last case, a slow motion component in the EPR signal appeared, indicating the formation of the ternary complex. Deconvolution of the EPR spectrum allowed to obtain the relative drug amounts in the complex. It was also possible to demonstrate that the residence time of CPT "trapped" in the ternary complex is longer than hundreds of microseconds.
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Affiliation(s)
- Antonio Ricci
- Department of Pharmaceutical Sciences, University of Padova, Via Marzolo 5, 30039 Padova, Italy
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14
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Cytotoxicity and Topo I targeting activity of substituted 10--nitrogenous heterocyclic aromatic group derivatives of SN-38. Eur J Med Chem 2010; 45:3200-6. [DOI: 10.1016/j.ejmech.2010.03.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2009] [Revised: 03/09/2010] [Accepted: 03/10/2010] [Indexed: 11/18/2022]
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15
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Itokawa H, Morris-Natschke SL, Akiyama T, Lee KH. Plant-derived natural product research aimed at new drug discovery. J Nat Med 2008; 62:263-80. [PMID: 18425692 DOI: 10.1007/s11418-008-0246-z] [Citation(s) in RCA: 107] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2008] [Accepted: 03/14/2008] [Indexed: 11/29/2022]
Abstract
Many important bioactive compounds have been discovered from natural sources using bioactivity-directed fractionation and isolation (BDFl) [Balunas MJ, Kinghorn AD (2005) Drug discovery from medicinal plants. Life Sci 78:431-441]. Continuing discovery has also been facilitated by the recent development of new bioassay methods. These bioactive compounds are mostly plant secondary metabolites, and many naturally occurring pure compounds have become medicines, dietary supplements, and other useful commercial products. Active lead compounds can also be further modified to enhance the biological profiles and developed as clinical trial candidates. In this review, the authors will summarize research on many different useful compounds isolated or developed from plants with emphasis placed on those recently discovered by the authors' laboratories as antitumor and anti-HIV clinical trial candidates.
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Affiliation(s)
- Hideji Itokawa
- Natural Products Research Laboratories, School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599-7360, USA
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16
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Choi I, Kim C, Choi S. Binding mode analysis of topoisomerase inhibitors, 6-arylamino-7-chloro-quinazoline-5,8-diones, within the cleavable complex of human topoisomerase I and DNA. Arch Pharm Res 2008; 30:1526-35. [PMID: 18254239 DOI: 10.1007/bf02977321] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of 6-arylamino-7-chloro-quinazoline-5,8-diones have been evaluated as novel human topoisomerase I (TOP1) inhibitors based on the antitumor activity of 1,4-naphthoquinone. Besides their in vitro cytotoxicity, their ability to inhibit human TOP1-DNA in vitro was tested with human TOP1 and a supercoiled (Form I) plasmid substrate DNA (Park et al., 2004). Using the flexible docking program, QXP, we have developed ternary complex models by docking camptothecin and ten 6-arylamino-7-chloro-quinazoline-5,8-dione analogs into the X-ray crystal structure of the human TOP1-DNA binary complex. The compound binding modes substantiated their potential inhibitory activities against TOP1 in the relaxation assay. Compounds whose templates the 6-arylamino-7-chloro-quinazoline-5,8-dione moiety intercalated between the -1 and +1 base pairs of the scissile strand showed good inhibitory activities. The template of compounds with poor inhibitory activities intercalated between the DNA base pairs of the nonscissile strand. The interaction of the compounds and the human TOP1-DNA binary complex were stabilized by an array of hydrogen bonds and hydrophobic interactions with the TOP1 residues, DNA bases, and water molecules. Docking results from the QXP program suggested potential binding modes of each non-CPT type compound in the human TOP1-DNA cleavable complex, which could provide a rational basis for future TOP1 inhibitor development.
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Affiliation(s)
- Inhee Choi
- College of Pharmacy, Ewha Womans University, Seoul 120-750, Korea
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Beretta GL, Zunino F. Relevance of extracellular and intracellular interactions of camptothecins as determinants of antitumor activity. Biochem Pharmacol 2007; 74:1437-44. [PMID: 17540344 DOI: 10.1016/j.bcp.2007.04.027] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2007] [Accepted: 04/30/2007] [Indexed: 02/01/2023]
Abstract
Camptothecins are potent antitumor agents that stabilize the covalent binding of topoisomerase I to DNA forming a reversible ternary complex which, following collision with the replication forks, converts the single-strand breaks into lethal double-strand breaks. This cytotoxic mechanism has been originally ascribed to the closed lactone form, because opening of the lactone ring resulted in loss of antitumor activity. Since the lipophilic lactone favours passive diffusion into the cancer cells, the stability of the closed form is expected to be predictive for activity. Thus, the in vivo pharmacological behavior of camptothecins, which is dependent on the pH-dependent dynamics, is likely a critical determinant of their antitumor efficacy and therapeutic index. The physicochemical properties could influence a number of cellular and in vivo interactions, including stability of the ternary DNA-enzyme-drug complex, binding to serum proteins, recognition by transport systems. These interactions are also implicated in the processes responsible of toxic side effects and drug resistance which are major limitations of the efficacy of camptothecin-based therapy. A number of strategies have been developed to overcome the limitations associated with the peculiar in vivo reactivity and the reversibility of drug-target interaction. Modifications with hydrophilic or lipophilic substituents at specific positions may have a variable (and somewhat opposite) influence on interaction with the intracellular target and plasma proteins and on recognition by membrane transporters. Here, we highlight the interactions of camptothecins which could be exploited to optimize therapeutic efficacy.
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Affiliation(s)
- Giovanni Luca Beretta
- Department of Experimental Oncology and Laboratories, Fondazione IRCCS Istituto Nazionale dei Tumori, via Venezian 1, 20133 Milan, Italy
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De Cesare M, Beretta GL, Tinelli S, Benedetti V, Pratesi G, Penco S, Dallavalle S, Merlini L, Pisano C, Carminati P, Zunino F. Preclinical efficacy of ST1976, a novel camptothecin analog of the 7-oxyiminomethyl series. Biochem Pharmacol 2006; 73:656-64. [PMID: 17169332 DOI: 10.1016/j.bcp.2006.11.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2006] [Revised: 11/02/2006] [Accepted: 11/06/2006] [Indexed: 11/29/2022]
Abstract
In previous studies, we have documented the potential therapeutic advantages of camptothecin analogs modified at the 7-position, i.e., 7-oxyiminomethyl derivatives. The present study was performed to explore the therapeutic potential of novel hydrophilic derivatives of this series. With one exception (ST1976), the tested camptothecins exhibited a reduced antiproliferative activity and all compounds retained ability to stabilize the topoisomerase I-mediated cleavable complex. The two analogs (ST1976 and ST1968) characterized by the presence of a free amino group in the side chain also exhibited the formation of persistent cleavable complexes. The most potent compound, ST1976 (7-(4-aminobenzyl)oxyiminomethylcamptothecin), was selected for evaluation of its preclinical profile of antitumor activity in a large panel of human tumor xenografts. As expected on the basis of the introduction of a hydrophilic substituent, the novel camptothecin was a substrate for BCRP. However, in spite of an apparent recognition by BCRP, ST1976 was effective following oral administration. The antitumor activity was evaluated using various schedules and routes of administration (i.v. and p.o.). ST1976 exhibited a remarkable activity in all tested tumors and was effective in a number of tumors which are resistant to irinotecan. The biological and pharmacological profile of ST1976 supports the therapeutic potential of camptothecins containing hydrophilic substituents at the 7-position. On the basis of its excellent activity in preclinical models, ST1976 is a promising candidate for clinical development.
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Rizzi E, Dallavalle S, Merlini L, Beretta GL, Pratesi G, Zunino F. A new synthesis of isoaurones: Cytotoxic activity of compounds related to the alleged structure of isoaurostatin. Bioorg Med Chem Lett 2005; 15:4313-6. [PMID: 16040242 DOI: 10.1016/j.bmcl.2005.06.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2005] [Revised: 06/15/2005] [Accepted: 06/16/2005] [Indexed: 11/28/2022]
Abstract
A new synthesis of isoaurones related to the alleged structure of isoaurostatin, via Heck intramolecular cyclization of cinnamic esters of 2-iodophenols, is reported. The cytotoxic activity of these isoaurones is lower than that of the structurally very similar 4-arylcoumarins.
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Affiliation(s)
- Eleonora Rizzi
- Dipartimento di Scienze Molecolari Agroalimentari, Università di Milano, Via Celoria 2, I 20133 Milano, Italy
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Dallavalle S, Merlini L, Beretta GL, Tinelli S, Zunino F. Synthesis and cytotoxic activity of substituted Luotonin A derivatives. Bioorg Med Chem Lett 2004; 14:5757-61. [PMID: 15501036 DOI: 10.1016/j.bmcl.2004.09.039] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2004] [Revised: 08/24/2004] [Accepted: 09/17/2004] [Indexed: 11/18/2022]
Abstract
Luotonin A is a cytotoxic alkaloid that has been shown to inhibit topoisomerase I via stabilization of the binary complex topoisomerase-DNA in the same fashion as camptothecin. The synthesis and the cytotoxic activity on the lung carcinoma cell line H460 of a series of derivatives of Luotonin A is reported. The compounds inhibit topoisomerase I but show weak cytotoxic activity, thus confirming the peculiarity of ring E of camptothecin for antitumor activity.
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Affiliation(s)
- Sabrina Dallavalle
- Dipartimento di Scienze Molecolari Agroalimentari, Sezione di Chimica, Università di Milano, Via Celoria 2, 20133 Milano, Italy.
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