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Vishnuvardhan MVPS, V SR, Chandrasekhar K, Lakshma Nayak V, Sayeed IB, Alarifi A, Kamal A. Click chemistry-assisted synthesis of triazolo linked podophyllotoxin conjugates as tubulin polymerization inhibitors. MEDCHEMCOMM 2017; 8:1817-1823. [PMID: 30108892 PMCID: PMC6084182 DOI: 10.1039/c7md00273d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Accepted: 07/14/2017] [Indexed: 12/17/2022]
Abstract
A series of new triazolo linked 4β-amidopodophyllotoxin conjugates (9a-l) were synthesized using click chemistry and evaluated for their antitumor activity against four human cancer cell lines. Among them, two compounds (9c and 9j) showed significant anticancer activity with IC50 values of 0.9 and 0.07 μM, respectively. Biological studies are conducted into the cell-cycle distribution of these conjugates inducing G2/M-phase arrest, apart from an increase in the levels of caspase-3 proteins, followed by apoptotic cell death. A tubulin polymerization assay analysis showed that these compounds effectively inhibit microtubule assembly in HeLa cells and, moreover, Hoechst 33258 and Immunohistochemistry staining suggest that these compounds induce cell death by apoptosis. The docking studies showed that compounds 9c and 9j interact and bind efficiently with the tubulin protein at the colchicine site.
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Affiliation(s)
- M V P S Vishnuvardhan
- Medicinal Chemistry and Pharmacology , CSIR-Indian Institute of Chemical Technology , Tarnaka , Hyderabad 500007 , India .
| | - Saidi Reddy V
- Medicinal Chemistry and Pharmacology , CSIR-Indian Institute of Chemical Technology , Tarnaka , Hyderabad 500007 , India .
| | - Kunta Chandrasekhar
- Medicinal Chemistry and Pharmacology , CSIR-Indian Institute of Chemical Technology , Tarnaka , Hyderabad 500007 , India .
| | - V Lakshma Nayak
- Medicinal Chemistry and Pharmacology , CSIR-Indian Institute of Chemical Technology , Tarnaka , Hyderabad 500007 , India .
| | - Ibrahim Bin Sayeed
- Medicinal Chemistry and Pharmacology , CSIR-Indian Institute of Chemical Technology , Tarnaka , Hyderabad 500007 , India .
| | - Abdullah Alarifi
- Catalytic Chemistry Research Chair , Chemistry Department , College of Science , King Saud University , Riyadh 11451 , Saudi Arabia
| | - Ahmed Kamal
- Medicinal Chemistry and Pharmacology , CSIR-Indian Institute of Chemical Technology , Tarnaka , Hyderabad 500007 , India .
- Catalytic Chemistry Research Chair , Chemistry Department , College of Science , King Saud University , Riyadh 11451 , Saudi Arabia
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2
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Paidakula S, Kankala S, Kankala RK, Juluru B, Jonnalagadda SB, Lee CH, Vadde R, Vasam CS. Synthesis and biological evaluation of 4β-benzoxazolepodophyllotoxin hybrids as DNA topoisomerase-II targeting anticancer agents. RSC Adv 2015. [DOI: 10.1039/c5ra15366b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of new 4β-benzoxazolepodophyllotoxin compounds (9a–j) were prepared and screened for molecular modelling and cytotoxicity against various human tumour cell lines. Cell apoptosis evaluation was performed using Hoechst staining.
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Affiliation(s)
| | - Shravankumar Kankala
- Department of Chemistry
- Kakatiya University
- Warangal
- India
- School of Physics and Chemistry
| | - Ranjith kumar Kankala
- Department of Life Science and Institute of Biotechnology
- National Dong Hwa University
- Hualien
- Taiwan
| | | | | | - Chia-Hung Lee
- Department of Life Science and Institute of Biotechnology
- National Dong Hwa University
- Hualien
- Taiwan
| | | | - Chandra Sekhar Vasam
- Department of Chemistry
- Satavahana University
- India
- Department of Pharmaceutical Chemistry
- Telangana University
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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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Synthesis of a terphenyl substituted 4-aza-2,3-didehydropodophyllotoxin analogues as inhibitors of tubulin polymerization and apoptosis inducers. Bioorg Med Chem 2014; 22:2714-23. [DOI: 10.1016/j.bmc.2014.03.021] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Revised: 03/08/2014] [Accepted: 03/11/2014] [Indexed: 11/23/2022]
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Kamal A, Suresh P, Janaki Ramaiah M, Mallareddy A, Kumar BA, Raju P, Vinay Gopal J, Pushpavalli S, Lavanya A, Sarma P, Pal-Bhadra M. Synthesis and biological evaluation of 4β-acrylamidopodophyllotoxin congeners as DNA damaging agents. Bioorg Med Chem 2011; 19:4589-600. [DOI: 10.1016/j.bmc.2011.06.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2011] [Revised: 06/02/2011] [Accepted: 06/03/2011] [Indexed: 11/26/2022]
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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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Kamal A, Suresh P, Mallareddy A, Kumar BA, Reddy PV, Raju P, Tamboli JR, Shaik TB, Jain N, Kalivendi SV. Synthesis of a new 4-aza-2,3-didehydropodophyllotoxin analogues as potent cytotoxic and antimitotic agents. Bioorg Med Chem 2011; 19:2349-58. [DOI: 10.1016/j.bmc.2011.02.020] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Revised: 02/10/2011] [Accepted: 02/11/2011] [Indexed: 11/24/2022]
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An efficient one-pot synthesis of benzothiazolo-4β-anilino-podophyllotoxin congeners: DNA topoisomerase-II inhibition and anticancer activity. Bioorg Med Chem Lett 2011; 21:350-3. [DOI: 10.1016/j.bmcl.2010.11.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2010] [Revised: 10/29/2010] [Accepted: 11/01/2010] [Indexed: 11/18/2022]
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Kamal A, Kumar BA, Suresh P, Agrawal SK, Chashoo G, Singh SK, Saxena A. Synthesis of 4β-N-polyaromatic substituted podophyllotoxins: DNA topoisomerase inhibition, anticancer and apoptosis-inducing activities. Bioorg Med Chem 2010; 18:8493-500. [DOI: 10.1016/j.bmc.2010.10.042] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Revised: 10/14/2010] [Accepted: 10/15/2010] [Indexed: 11/28/2022]
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Kamal A, Gayatri NL, Reddy DR, Mohan Reddy PSM, Arifuddin M, Dastidar SG, Kondapi AK, Rajkumar M. Synthesis and biological evaluation of new 4beta-anilino- and 4beta-imido-substituted podophyllotoxin congeners. Bioorg Med Chem 2005; 13:6218-25. [PMID: 16061385 DOI: 10.1016/j.bmc.2005.06.032] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2005] [Revised: 06/17/2005] [Accepted: 06/21/2005] [Indexed: 10/25/2022]
Abstract
A series of C-4-anilino- and C-4-imido-substituted new podophyllotoxin congeners have been designed, synthesized, and evaluated for their cytotoxicity and DNA topoisomerase-II (topo-II) inhibition potential. Some of these compounds have exhibited promising in vitro anticancer and topo-II inhibition activity.
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Affiliation(s)
- Ahmed Kamal
- Division of Organic Chemistry, Indian Institute of Chemical Technology, Hyderabad 500007, Andhra Pradesh, India.
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Kamal A, Ashwini Kumar B, Arifuddin M, Dastidar SG. Synthesis of 4β-amido and 4β-sulphonamido analogues of podophyllotoxin as potential antitumour agents. Bioorg Med Chem 2003; 11:5135-42. [PMID: 14604676 DOI: 10.1016/j.bmc.2003.08.019] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The new 4beta-amido analogues of podophyllotoxin or 4'-O-demethylepipodophyllotoxin have been prepared either by the coupling of 4beta-amino podophyllotoxin or 4beta-amino-4'-O-demethyl epipodophyllotoxin with the corresponding acids in presence of DCC in dichloromethane or by treating the appropriate acid chloride or sulphonyl chloride in presence of Et(3)N. These 4beta-amido and 4beta-sulphonamido derivatives of podophyllotoxin have been evaluated for their cytotoxicity against six human cancer cell lines. Some of these analogues have shown promising anticancer activity.
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Affiliation(s)
- Ahmed Kamal
- Division of Organic Chemistry, Indian Institute of Chemical Technology, Hyderabad-500007, India.
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Kamal A, Laxman N, Ramesh G. Facile and efficient one-pot synthesis of 4beta-arylaminopodophyllotoxins: synthesis of DNA topoisomerase II inhibitors (NPF and W-68). Bioorg Med Chem Lett 2000; 10:2059-62. [PMID: 10999470 DOI: 10.1016/s0960-894x(00)00407-8] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A series of 4beta-arylamino-4'-O-demethylepipodophyllotoxins and 4beta-arylaminoepipodophyllotoxins have been synthesized with significant stereoselectivity and improved yields by employing the methanesulphonic acid/sodium iodide reagent system. Compounds NPF. W-68 and other DNA topoisomerase II inhibitors are prepared in good to excellent yields by this method and these are active or more active than etoposide in their inhibition of the human DNA topoisomerase II.
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Affiliation(s)
- A Kamal
- Division of Organic Chemistry, Indian Institute of Chemical Technology, Hyderabad.
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