1
|
Mohammed YHE, Ara Khanum S. The critical role of novel benzophenone analogs on tumor growth inhibition targeting angiogenesis and apoptosis. MEDCHEMCOMM 2018; 9:639-656. [PMID: 30108955 PMCID: PMC6072443 DOI: 10.1039/c7md00593h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 02/14/2018] [Indexed: 11/21/2022]
Abstract
In modern biology, one of the major topics of importance is progress in anti-cancer drugs with specific targets. The angiopreventive and in vitro tumor inhibition activities of novel synthetic benzophenone analogs have been investigated intensively and explored in a very systematic way. Novel benzophenone analogs (9a-d and 10a-d) substituted with methyl, chloro and fluoro groups at different positions on an identical chemical backbone and incorporating variations in the number of substituents have been synthesized in a multistep process and characterized. In this study, we further evaluate the newly synthesized compounds for their cytotoxic and anti-proliferative effects against A549, HeLa and MCF-7 cells. The potent lead compound was further assessed for anti-angiogenic effects. Through the structure-activity relationship, we found that an increase in the number of methyl, chloro and fluoro groups in a benzophenone ring on compound 9d resulted in higher potency compared to other compounds. Tumor inhibition was notably promoted, and this was reflected in effects on neovessel formation in in vivo systems, such as the CAM. Compound 9d interacts with rVEGF through hydrogen bonds in silico, thereby down-regulating the expression of VEGF in angiogenesis. From our investigation, it is suggested on the basis of clonogenesis and cell migration assays that compound 9d has the potency to exhibit prolonged activity against cancer progression, through cell cycle arrest at the G2/M phase. In addition, compound 9d inhibits A549 cells through caspase-activated DNase-mediated apoptosis.
Collapse
Affiliation(s)
- Yasser Hussein Eissa Mohammed
- Department of Chemistry , Yuvaraja's College , University of Mysore , Mysore -570005 , Karnataka , India . ; ; Tel: +91 99018 88755
- Department of Biochemistry , Faculty of Applied Science College , University of Hajjah , Yemen
| | - Shaukath Ara Khanum
- Department of Chemistry , Yuvaraja's College , University of Mysore , Mysore -570005 , Karnataka , India . ; ; Tel: +91 99018 88755
| |
Collapse
|
2
|
Zabiulla, Shamanth Neralagundi HG, Bushra Begum A, Prabhakar BT, Khanum SA. Design and synthesis of diamide-coupled benzophenones as potential anticancer agents. Eur J Med Chem 2016; 115:342-51. [PMID: 27027818 DOI: 10.1016/j.ejmech.2016.03.040] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 03/15/2016] [Accepted: 03/16/2016] [Indexed: 12/19/2022]
Abstract
A series of diamide-coupled benzophenone, 2-(4-benzoyl-phenoxy)-N-{2-[2-(4-benzoyl-phenoxy)-acetylamino]-phenyl}-acetamide analogues (9a-l) were synthesized by multistep reactions and all compounds were well characterized. Among the series (9a-l), compound 9k with three methyl groups at ortho position in rings A, B, and D and bromo group at the para position in ring E was selected as a lead compound by screening through multiple cancer cell types by in-vitro cytotoxic and antiproliferative assay systems. Also, the cytotoxic nature of the compound 9k resulted the regression of the tumor growth in-vivo, which could be due to decreased vascularisation in the peritoneum lining of the mice which regress the tumor growth. The results were reconfirmed in-vivo chorioallantoic membrane model which indicates a scope of developing 9k into potent anticancer drug in near future.
Collapse
Affiliation(s)
- Zabiulla
- Department of Chemistry, Yuvaraja's College (Autonomous), University of Mysore, Mysore, Karnataka, India
| | - H G Shamanth Neralagundi
- Molecular Biomedicine Laboratory, Postgraduate Department of Studies and Research in Biotechnology, Sahyadri Science College (Autonomous), Kuvempu University, Karnataka, India
| | - A Bushra Begum
- Department of Chemistry, Yuvaraja's College (Autonomous), University of Mysore, Mysore, Karnataka, India
| | - B T Prabhakar
- Molecular Biomedicine Laboratory, Postgraduate Department of Studies and Research in Biotechnology, Sahyadri Science College (Autonomous), Kuvempu University, Karnataka, India
| | - Shaukath Ara Khanum
- Department of Chemistry, Yuvaraja's College (Autonomous), University of Mysore, Mysore, Karnataka, India.
| |
Collapse
|
3
|
Venkata Sairam K, Gurupadayya BM, Vishwanathan BI, Chandan RS, Nagesha DK. Cytotoxicity studies of coumarin analogs: design, synthesis and biological activity. RSC Adv 2016. [DOI: 10.1039/c6ra22466k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In the present study, a series of coumarin derivatives were designed, synthesized and evaluated for their antioxidant and cytotoxic properties.
Collapse
Affiliation(s)
- K. Venkata Sairam
- Department of Pharmaceutical Chemistry
- JSS College of Pharmacy
- JSS University
- Mysuru 570 015
- India
| | - B. M. Gurupadayya
- Department of Pharmaceutical Chemistry
- JSS College of Pharmacy
- JSS University
- Mysuru 570 015
- India
| | - B. Iyer Vishwanathan
- Department of Pharmaceutical Chemistry
- JSS College of Pharmacy
- JSS University
- Mysuru 570 015
- India
| | - R. S. Chandan
- Department of Pharmaceutical Chemistry
- JSS College of Pharmacy
- JSS University
- Mysuru 570 015
- India
| | | |
Collapse
|
4
|
Kaur P, Gill RK, Singh G, Bariwal J. Synthesis, Cytotoxic Evaluation, andIn SilicoStudies of 4-Substituted Coumarins. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2458] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Prabhjot Kaur
- Department of Pharmaceutical Chemistry; ISF College of Pharmacy; Moga Punjab 142001 India
| | - Rupinder Kaur Gill
- Department of Pharmaceutical Chemistry; ISF College of Pharmacy; Moga Punjab 142001 India
- Research Scholar; Punjab Technical University; Kapurthala Punjab 144 601 India
| | - Gagandip Singh
- Department of Pharmaceutical Chemistry; ISF College of Pharmacy; Moga Punjab 142001 India
| | - Jitender Bariwal
- Department of Pharmaceutical Chemistry; ISF College of Pharmacy; Moga Punjab 142001 India
- Satiate Research and Anatech Pvt. Ltd.; Panchkula Haryana 134102 India
| |
Collapse
|
5
|
Synthesis and biological evaluation of novel oxindole-based RTK inhibitors as anti-cancer agents. Bioorg Med Chem 2014; 22:6953-60. [DOI: 10.1016/j.bmc.2014.10.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2014] [Revised: 10/13/2014] [Accepted: 10/14/2014] [Indexed: 02/01/2023]
|
6
|
Vijay Avin BR, Thirusangu P, Lakshmi Ranganatha V, Firdouse A, Prabhakar BT, Khanum SA. Synthesis and tumor inhibitory activity of novel coumarin analogs targeting angiogenesis and apoptosis. Eur J Med Chem 2014; 75:211-21. [PMID: 24534537 DOI: 10.1016/j.ejmech.2014.01.050] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Revised: 01/17/2014] [Accepted: 01/18/2014] [Indexed: 11/27/2022]
Abstract
A sequence of coumarin analogs 5a-j was obtained by multi step synthesis from hydroxy benzophenones (1a-j). The in vitro antiproliferative effect of the title compounds was tested against Ehrlich ascites carcinoma (EAC) and Daltons lymphoma ascites (DLA) cell lines. Among the series, compound 5c with bromo group in the benzophenone moiety was endowed with excellent antiproliferative potency with significant IC50 value. Further, in vivo antitumor effect of compound 5c against murine EAC and solid DL tumor model system was evident by the extended survivality. The tumor inhibitory mechanism of compound 5c was due to the antiangiogenesis and promotion of apoptosis. These results suggest possible applications of compound 5c which could be developed as a potent anticancer drug in the near future.
Collapse
Affiliation(s)
- B R Vijay Avin
- Molecular Biomedicine Laboratory, Postgraduate Department of Studies and Research in Biotechnology, Sahyadri Science College (Autonomous), Kuvempu University, Shimoga 577203, Karnataka, India
| | - Prabhu Thirusangu
- Molecular Biomedicine Laboratory, Postgraduate Department of Studies and Research in Biotechnology, Sahyadri Science College (Autonomous), Kuvempu University, Shimoga 577203, Karnataka, India
| | - V Lakshmi Ranganatha
- Department of Chemistry, Yuvaraja's College (Autonomous), University of Mysore, Mysore 570 005, Karnataka, India
| | - Aiyesha Firdouse
- Department of Biochemistry, Yuvaraja's College (Autonomous), University of Mysore, Mysore 570 005, Karnataka, India
| | - B T Prabhakar
- Molecular Biomedicine Laboratory, Postgraduate Department of Studies and Research in Biotechnology, Sahyadri Science College (Autonomous), Kuvempu University, Shimoga 577203, Karnataka, India
| | - Shaukath Ara Khanum
- Department of Chemistry, Yuvaraja's College (Autonomous), University of Mysore, Mysore 570 005, Karnataka, India.
| |
Collapse
|
7
|
Hotta K, Kiura K, Fujiwara Y, Takigawa N, Hisamoto A, Ichihara E, Tabata M, Tanimoto M. Role of survival post-progression in phase III trials of systemic chemotherapy in advanced non-small-cell lung cancer: a systematic review. PLoS One 2011; 6:e26646. [PMID: 22114662 PMCID: PMC3219633 DOI: 10.1371/journal.pone.0026646] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Accepted: 09/30/2011] [Indexed: 11/22/2022] Open
Abstract
Background In advanced non-small-cell lung cancer (NSCLC), with the increasing number of active compounds available in salvage settings, survival after progression to first-line chemotherapy seems to have improved. A literature survey was conducted to examine whether survival post-progression (SPP) has improved over the years and to what degree SPP correlates with overall survival (OS). Methods and Findings Median progression-free survival (MPFS) time and median survival time (MST) were extracted in phase III trials of first-line chemotherapy for advanced NSCLC. SPP was pragmatically defined as the time interval of MST minus MPFS. The relationship between MPFS and MST was modeled in a linear function. We used the coefficient of determination (r2) to assess the correlation between them. Seventy trials with 145 chemotherapy arms were identified. Overall, median SPP was 4.7 months, and a steady improvement in SPP was observed over the 20 years (9.414-day increase per year; p<0.001) in parallel to the increase in MST (11.253-day increase per year; p<0.001); MPFS improved little (1.863-day increase per year). Overall, a stronger association was observed between MST and SPP (r2 = 0.8917) than MST and MPFS time (r2 = 0.2563), suggesting SPP and MPFS could account for 89% and 25% of the variation in MST, respectively. The association between MST and SPP became closer over the years (r2 = 0.4428, 0.7242, and 0.9081 in 1988–1994, 1995–2001, and 2002–2007, respectively). Conclusions SPP has become more closely associated with OS, potentially because of intensive post-study treatments. Even in advanced NSCLC, a PFS advantage is unlikely to be associated with an OS advantage any longer due to this increasing impact of SPP on OS, and that the prolongation of SPP might limit the original role of OS for assessing true efficacy derived from early-line chemotherapy in future clinical trials.
Collapse
Affiliation(s)
- Katsuyuki Hotta
- Department of Respiratory Medicine, Okayama University Hospital, Okayama, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
8
|
Belluti F, Fontana G, Dal Bo L, Carenini N, Giommarelli C, Zunino F. Design, synthesis and anticancer activities of stilbene-coumarin hybrid compounds: Identification of novel proapoptotic agents. Bioorg Med Chem 2010; 18:3543-50. [PMID: 20409723 DOI: 10.1016/j.bmc.2010.03.069] [Citation(s) in RCA: 186] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2009] [Revised: 03/19/2010] [Accepted: 03/25/2010] [Indexed: 01/08/2023]
Abstract
The naturally occurring coumarins and resveratrol, attract great attention due to their wide range of biological properties, including anticancer, antileukemic, antibacterial and anti-inflammatory activities; moreover, their cancer chemopreventive property have been recently emphasized. A novel class of hybrid compounds, obtained by introducing a substituted trans-vinylbenzene moiety on a coumarin backbone, was synthesized and evaluated for the antitumor profile. A number of derivatives showed a good antiproliferative activity, in some cases higher to that of the reference compound resveratrol. The most promising compounds in this series were 14 and 17, endowed with excellent antiproliferative and proapoptotic activities. The present study suggests that the 7-methoxycoumarin nucleus, together with the 3,5-disubstitution pattern of the trans-vinylbenzene moiety, are likely promising structural features to obtain excellent antitumor compounds endowed with a apoptosis-inducing capability.
Collapse
Affiliation(s)
- Federica Belluti
- Dipartimento di Scienze Farmaceutiche, Via Belmeloro, 6, I-40126 Bologna, Italy.
| | | | | | | | | | | |
Collapse
|
9
|
Fortin S, Moreau E, Lacroix J, Côté MF, Petitclerc E, C-Gaudreault R. Synthesis, antiproliferative activity evaluation and structure-activity relationships of novel aromatic urea and amide analogues of N-phenyl-N'-(2-chloroethyl)ureas. Eur J Med Chem 2010; 45:2928-37. [PMID: 20400211 DOI: 10.1016/j.ejmech.2010.03.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2010] [Revised: 03/15/2010] [Accepted: 03/17/2010] [Indexed: 11/24/2022]
Abstract
Seven subsets of aromatic urea and amide analogues of N-phenyl-N'-(2-chloroethyl)ureas (CEU) have been synthesized by nucleophilic addition of 3-chloropropylisocyanate, 2-chloroacetylisocyanate, ethylisocyanate, 2-chloroacetyl chloride, 3-chloropropanoyl chloride, 4-chlorobutanoyl chloride, and acryloyl chloride, respectively, to selected anilines or benzylamines to afford 3-chloropropylureas (1, CPU), 2-chloroacetylureas (2, CAU), ethylureas (3, EU), 2-chloroacetamides (4, CA), 3-chloropropionamides (5, CPA), 4-chlorobutyramides (6, CBA) and acrylamides (7, Acr). The molecular structure of these compounds has been confirmed by IR, (1)H and (13)C NMR, and MS spectra and their purity also confirmed by HPLC. The CEU analogues were evaluated for their antiproliferative activity against three human tumor cell lines, namely human colon carcinoma HT-29, human skin melanoma M21, and human breast carcinoma MCF-7. CAU (2c to 2g), CA (4a to 4d, 4f and 4 g), CPA (5a) and Acr (7a and 7b) had IC(50) ranging from 1.4 to 25 microM. CAU, CA, CPA and Acr exhibited interesting antiproliferative activity through mechanism(s) of action unrelated to the acylation of glutamic acid at position 198 on beta-tubulin that is characterizing CEU.
Collapse
Affiliation(s)
- Sébastien Fortin
- Unité des Biotechnologies et de Bioingénierie, Centre de recherche, C.H.U.Q., Hôpital Saint-François d'Assise, Quebec G1L 3L5, Canada.
| | | | | | | | | | | |
Collapse
|
10
|
Time to progression as a surrogate marker for overall survival in patients with advanced non-small cell lung cancer. J Thorac Oncol 2009; 4:311-7. [PMID: 19190515 DOI: 10.1097/jto.0b013e3181989bd2] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE With the increasing number of active compounds available for advanced non-small cell lung cancer, it is useful to evaluate whether surrogate end points can replace survival in randomized trials for the rapid and efficient assessment of efficacy. We examined the association between differences in overall survival and time to progression (TTP) using a literature survey. METHODS We used median TTP (MTTP) and median survival time (MST) from 54 phase III trials of first-line chemotherapy involving 23,457 advanced non-small cell lung cancer patients in a multiple linear regression analysis. The MST ratio in each trial was defined as the ratio of MST in the investigational arm to that in the reference arm. The MTTP ratio was defined similarly. RESULTS The degree of the association between the MST and MTTP ratios was only moderate both in the overall cohort (R(2) = 0.33) and various trial settings (R(2) = 0.16-0.51), although the MTTP ratio was an independent factor influencing the MST ratio in the multiple regression model (p < 0.01). This means that the MTTP ratio could account for less than half of the variance in the MST ratio. CONCLUSIONS The TTP potentially acts as a surrogate marker, but may not be still a definitive alternative in the first-line setting.
Collapse
|
11
|
Do Q, Tian W, Yougnia R, Gaslonde T, Pfeiffer B, Pierré A, Léonce S, Kraus-Berthier L, David-Cordonnier MH, Depauw S, Lansiaux A, Mazinghien R, Koch M, Tillequin F, Michel S, Dufat H. Synthesis, cytotoxic activity, and DNA binding properties of antitumor cis-1,2-dihydroxy-1,2-dihydrobenzo[b]acronycine cinnamoyl esters. Bioorg Med Chem 2009; 17:1918-27. [DOI: 10.1016/j.bmc.2009.01.062] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2008] [Revised: 01/15/2009] [Accepted: 01/20/2009] [Indexed: 11/30/2022]
|
12
|
Synthesis and biological evaluation of C-12′ substituted vinflunine derivatives. Bioorg Med Chem Lett 2008; 18:4602-5. [DOI: 10.1016/j.bmcl.2008.07.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2008] [Revised: 07/04/2008] [Accepted: 07/09/2008] [Indexed: 11/23/2022]
|
13
|
Matsuno K, Sawada JI, Asai A. Therapeutic potential of mitotic kinesin inhibitors in cancer. Expert Opin Ther Pat 2008. [DOI: 10.1517/13543776.18.3.253] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
14
|
In JK, Lee MS, Yang JE, Kwak JH, Lee H, Boovanahalli SK, Lee K, Kim SJ, Moon SK, Lee S, Choi NS, Ahn SK, Jung JK. Synthesis of novel diaryl ethers and their evaluation as antimitotic agents. Bioorg Med Chem Lett 2007; 17:1799-802. [PMID: 17276056 DOI: 10.1016/j.bmcl.2006.12.048] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2006] [Revised: 11/06/2006] [Accepted: 12/13/2006] [Indexed: 11/15/2022]
Abstract
A series of novel diaryl ethers possessing various functional groups were synthesized and evaluated for antiproliferative activity in human myeloid leukemia HL-60 cells. Among the compounds examined, compounds 10, 17, 20, 24, and 33 showed moderate to potent antiproliferative activity. These derivatives were further examined in terms of their abilities to inhibit tubulin polymerization; however, all of the tested compounds were relatively ineffective. The reference compound E7010 with an IC(50) of 0.34 microM exhibited potent antiproliferative activity and significantly inhibited tubulin polymerization in a dose-dependent manner.
Collapse
Affiliation(s)
- Jin-Kyung In
- College of Pharmacy, Chungbuk National University, Cheongju 361-763, Republic of Korea.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Williams NS, Burgett AWG, Atkins AS, Wang X, Harran PG, McKnight SL. Therapeutic anticancer efficacy of a synthetic diazonamide analog in the absence of overt toxicity. Proc Natl Acad Sci U S A 2007; 104:2074-9. [PMID: 17287337 PMCID: PMC1794345 DOI: 10.1073/pnas.0611340104] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2006] [Indexed: 11/18/2022] Open
Abstract
Blocking cell division through the inhibition of mitosis is one of the most successful clinical strategies for the treatment of cancer. Taxanes and vinca alkaloids are in widespread use and have demonstrated substantive therapeutic efficacy. Both classes of compounds bind directly to tubulin, a structural component of the mitotic spindle. The ubiquitous utilization of tubulin in cell division in both cancerous and normal cells, however, tempers the broad spectrum of activity of currently used antimitotics by significant toxicities in normal dividing tissue. Moreover, peripheral nerve cells that rely on microtubules to shuttle cargo along axonal processes are also damaged by tubulin-binding drugs. Thus, neutropenia and peripheral neuropathy are the most frequently cited dose-limiting toxicities of this class of chemotherapeutics. Here we report the preclinical assessment of AB-5, a structural and functional analog of the natural product diazonamide A. AB-5, like taxanes and vinca alkaloids, blocks cell division during mitosis. However, AB-5 works not by binding tubulin but rather through inhibition of a newly discovered role for ornithine-delta-aminotransferase in mitosis. We hereby report that, unlike other antimitotics, AB-5 is extremely well tolerated by mice when administered under conditions where the drug cures xenografted tumors as effectively as taxanes and vinca alkaloids. AB-5-treated mice show no weight loss, no change in overall physical appearance, and no evidence of neutropenia. These observations raise the possibility that AB-5 may have clinical utility for cancer therapy under conditions largely devoid of chemotherapeutic toxicity and suggest that further preclinical evaluation of AB-5 is warranted.
Collapse
Affiliation(s)
| | | | | | - Xiaodong Wang
- *Department of Biochemistry and
- Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390
| | | | | |
Collapse
|
16
|
Ouyang X, Piatnitski EL, Pattaropong V, Chen X, He HY, Kiselyov AS, Velankar A, Kawakami J, Labelle M, Smith L, Lohman J, Lee SP, Malikzay A, Fleming J, Gerlak J, Wang Y, Rosler RL, Zhou K, Mitelman S, Camara M, Surguladze D, Doody JF, Tuma MC. Oxadiazole derivatives as a novel class of antimitotic agents: Synthesis, inhibition of tubulin polymerization, and activity in tumor cell lines. Bioorg Med Chem Lett 2006; 16:1191-6. [PMID: 16377187 DOI: 10.1016/j.bmcl.2005.11.094] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2005] [Revised: 11/22/2005] [Accepted: 11/23/2005] [Indexed: 11/23/2022]
Abstract
Oxadiazole derivatives were synthesized and evaluated for their ability to inhibit tubulin polymerization and to cause mitotic arrest in tumor cells. The most potent compounds inhibited tubulin polymerization at concentrations below 1 microM. Lead analogs caused mitotic arrest of A431 human epidermoid cells and cells derived from multi-drug resistant tumors (10, EC(50)=7.8 nM). Competition for the colchicine binding site and pharmacokinetic properties of selected potent compounds were also investigated and are reported herein, along with structure-activity relationships for this novel series of antimitotic agents.
Collapse
Affiliation(s)
- Xiaohu Ouyang
- Department of Chemistry, ImClone Systems Incorporated, 180 Varick Street, New York, NY 10014, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|