1
|
Powała K, Żołek T, Brown G, Kutner A. Molecular Interactions of Selective Agonists and Antagonists with the Retinoic Acid Receptor γ. Int J Mol Sci 2024; 25:6568. [PMID: 38928275 PMCID: PMC11203493 DOI: 10.3390/ijms25126568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 06/06/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
All-trans retinoic acid (ATRA), the major active metabolite of all-trans retinol (vitamin A), is a key hormonal signaling molecule. In the adult organism, ATRA has a widespread influence on processes that are crucial to the growth and differentiation of cells and, in turn, the acquisition of mature cell functions. Therefore, there is considerable potential in the use of retinoids to treat diseases. ATRA binds to the retinoic acid receptors (RAR) which, as activated by ATRA, selectively regulate gene expression. There are three main RAR isoforms, RARα, RARβ, and RARγ. They each have a distinct role, for example, RARα and RARγ regulate myeloid progenitor cell differentiation and hematopoietic stem cell maintenance, respectively. Hence, targeting an isoform is crucial to developing retinoid-based therapeutics. In principle, this is exemplified when ATRA is used to treat acute promyelocytic leukemia (PML) and target RARα within PML-RARα oncogenic fusion protein. ATRA with arsenic trioxide has provided a cure for the once highly fatal leukemia. Recent in vitro and in vivo studies of RARγ have revealed the potential use of agonists and antagonists to treat diseases as diverse as cancer, heterotopic ossification, psoriasis, and acne. During the final drug development there may be a need to design newer compounds with added modifications to improve solubility, pharmacokinetics, or potency. At the same time, it is important to retain isotype specificity and activity. Examination of the molecular interactions between RARγ agonists and the ligand binding domain of RARγ has revealed aspects to ligand binding that are crucial to RARγ selectivity and compound activity and key to designing newer compounds.
Collapse
Affiliation(s)
- Katarzyna Powała
- Department of Organic and Physical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha, 02-097 Warsaw, Poland
| | - Teresa Żołek
- Department of Organic and Physical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha, 02-097 Warsaw, Poland
| | - Geoffrey Brown
- School of Biomedical Sciences, Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK;
| | - Andrzej Kutner
- Department of Drug Chemistry Pharmaceutical and Biomedical Analysis, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha, 02-097 Warsaw, Poland;
| |
Collapse
|
2
|
Deng J, Lai G, Zhang C, Li K, Zhu W, Xie B, Zhong X. A robust primary liver cancer subtype related to prognosis and drug response based on a multiple combined classifying strategy. Heliyon 2024; 10:e25570. [PMID: 38352751 PMCID: PMC10861988 DOI: 10.1016/j.heliyon.2024.e25570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 01/13/2024] [Accepted: 01/29/2024] [Indexed: 02/16/2024] Open
Abstract
The recurrence or resistance to treatment of primary liver cancer (PLL) is significantly related to the heterogeneity present within the tumor. In this study, we integrated prognosis risk score, mRNAsi index, and immune characteristics clustering to classify patients. The four subtypes obtained from the combined classification are associated with PLC's prognosis and drug response. In these subtypes, we observed mRNAsiH_ICCA subtype, the intersection between high mRNAsi and immune characteristics clustering A, had the worst prognosis. Specifically, immune characteristics clustering B (ICC_B) had high drug sensitivity in most drugs regardless of the value of mRNAsi. On the other hand, patients with low mRNAsi responded better to ten drugs including KU-55933 and NU7441, while patients with high mRNAsi might benefit from drugs like Leflunomide. By matching the specific characteristics of each combined subtype with the drug-induced cell line expression profile, we identified a group of potential therapeutic drugs that might regulate the expression of disease signature genes. We developed a feasible multiple combined typing strategy, hoping to guide therapeutic selection and promote the development of precision medicine.
Collapse
Affiliation(s)
- Jielian Deng
- Department of Epidemiology and Health Statistics, School of Public Health, Chongqing Medical University, Chongqing, China
- Medical Department, Yidu Cloud (Beijing) Technology Co., Beijing, China
| | - Guichuan Lai
- Department of Epidemiology and Health Statistics, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Cong Zhang
- Department of Epidemiology and Health Statistics, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Kangjie Li
- Department of Epidemiology and Health Statistics, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Wenyan Zhu
- Chongqing Engineering Research Center of Pharmaceutical Sciences, Chongqing Medical and Pharmaceutical College, Chongqing, China
- College of Pharmacy, Chongqing Medical University, Chongqing, China
- Medical Department, Yidu Cloud (Beijing) Technology Co., Beijing, China
| | - Biao Xie
- Department of Epidemiology and Health Statistics, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Xiaoni Zhong
- Department of Epidemiology and Health Statistics, School of Public Health, Chongqing Medical University, Chongqing, China
| |
Collapse
|
3
|
Arylcinnamido-propionone conjugates as tubulin polymerization inhibitors and apoptotic inducers. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2016.07.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
|
4
|
Tunki L, Kulhari H, Vadithe LN, Kuncha M, Bhargava S, Pooja D, Sistla R. Modulating the site-specific oral delivery of sorafenib using sugar-grafted nanoparticles for hepatocellular carcinoma treatment. Eur J Pharm Sci 2019; 137:104978. [DOI: 10.1016/j.ejps.2019.104978] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 06/07/2019] [Accepted: 06/25/2019] [Indexed: 12/19/2022]
|
5
|
Prasad B, Lakshma Nayak V, Srikanth PS, Baig MF, Subba Reddy NV, Babu KS, Kamal A. Synthesis and biological evaluation of 1-benzyl-N-(2-(phenylamino)pyridin-3-yl)-1H-1,2,3-triazole-4-carboxamides as antimitotic agents. Bioorg Chem 2018; 83:535-548. [PMID: 30472555 DOI: 10.1016/j.bioorg.2018.11.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 10/31/2018] [Accepted: 11/01/2018] [Indexed: 01/11/2023]
Abstract
A library of 1-benzyl-N-(2-(phenylamino)pyridin-3-yl)-1H-1,2,3-triazole-4-carboxamides (7a-al) have been designed, synthesized and screened for their anti-proliferative activity against some selected human cancer cell lines namely DU-145, A-549, MCF-7 and HeLa. Most of them have shown promising cytotoxicity against lung cancer cell line (A549), amongst them 7f was found to be the most potent anti-proliferative congener. Furthermore, 7f exhibited comparable tubulin polymerization inhibition (IC50 value 2.04 µM) to the standard E7010 (IC50 value 2.15 µM). Moreover, flow cytometric analysis revealed that this compound induced apoptosis via cell cycle arrest at G2/M phase in A549 cells. Induction of apoptosis was further observed by examining the mitochondrial membrane potential and was also confirmed by Hoechst staining as well as Annexin V-FITC assays. Furthermore, molecular docking studies indicated that compound 7f binds to the colchicine binding site of the β-tubulin. Thus, 7f exhibits anti-proliferative properties by inhibiting the tubulin polymerization through the binding at the colchicine active site and by induction of apoptosis.
Collapse
Affiliation(s)
- Budaganaboyina Prasad
- Medicinal Chemistry and Biotechnology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; Department of Chemistry, Osmania University, Hyderabad 500007, Telangana, India
| | - V Lakshma Nayak
- Medicinal Chemistry and Biotechnology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - P S Srikanth
- Medicinal Chemistry and Biotechnology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Mirza Feroz Baig
- Medicinal Chemistry and Biotechnology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - N V Subba Reddy
- Medicinal Chemistry and Biotechnology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Korrapati Suresh Babu
- Medicinal Chemistry and Biotechnology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; Department of Chemistry, Osmania University, Hyderabad 500007, Telangana, India
| | - Ahmed Kamal
- Medicinal Chemistry and Biotechnology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; School of Pharmaceutical Education and Research (SPER), Jamia Hamdard, 110 062 New Delhi, India.
| |
Collapse
|
6
|
Wu J, Li J, Wang H, Liu CB. Mitochondrial-targeted penetrating peptide delivery for cancer therapy. Expert Opin Drug Deliv 2018; 15:951-964. [PMID: 30173542 DOI: 10.1080/17425247.2018.1517750] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Mitochondria are promising targeting organelles for anticancer strategies; however, mitochondria are difficult for antineoplastic drugs to recognize and bind. Mitochondria-penetrating peptides (MPPs) are unique tools to gain access to the cell interior and deliver a bioactive cargo into mitochondria. MPPs have combined or delivered a variety of antitumor cargoes and obviously inhibited the tumor growth in vivo and in vitro. MPPs create new opportunities to develop new treatments for cancer. AREAS COVERED We review the target sites of mitochondria and the target-penetration mechanism of MPPs, different strategies, and various additional strategies decorated MPPs for tumor cell mitochondria targeting, the decorating mattes including metabolism molecules, RNA, DNA, and protein, which exploited considered as therapeutic combined with MPPs and target in human cancer treatment. EXPERT OPINION/COMMENTARY Therapeutic selectivity that preferentially targets the mitochondrial abnormalities in cancer cells without toxic impact on normal cells still need to be deepen. Moreover, it needs appropriate study designs for a correct evaluation of the target delivery outcome and the degradation rate of the drug in the cell. Generally, it is optimistic that the advances in mitochondrial targeting drug delivery by MPPs plasticity outlined here will ultimately help to the discovery of new approaches for the prevention and treatment of cancers.
Collapse
Affiliation(s)
- Jiao Wu
- a Affiliated Ren He Hospital of China Three Gorges University , Yichang , China.,b Hubei Key Lab. of Tumor Microenvironment and Immunotherapy , China Three Gorges University , Yichang , China.,c Medical School , China Three Gorges University , Yichang , China
| | - Jason Li
- d Institute for Cell Engineering , Johns Hopkins University School of Medicine , Baltimore , MD , USA
| | - Hu Wang
- b Hubei Key Lab. of Tumor Microenvironment and Immunotherapy , China Three Gorges University , Yichang , China.,c Medical School , China Three Gorges University , Yichang , China.,d Institute for Cell Engineering , Johns Hopkins University School of Medicine , Baltimore , MD , USA
| | - Chang-Bai Liu
- b Hubei Key Lab. of Tumor Microenvironment and Immunotherapy , China Three Gorges University , Yichang , China.,c Medical School , China Three Gorges University , Yichang , China
| |
Collapse
|
7
|
Gastrodin Protects Cardiomyocytes from Anoxia/Reoxygenation Injury by 14-3-3 η. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:3685391. [PMID: 30147833 PMCID: PMC6083485 DOI: 10.1155/2018/3685391] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 05/06/2018] [Accepted: 06/07/2018] [Indexed: 11/29/2022]
Abstract
Gastrodin (GAS) is the major component isolated from the rhizome of the Chinese traditional medicinal herb “Tianma.” Many clinical studies have found that GAS protects cardiomyocytes in cardiovascular diseases, although the effects and underlying mechanisms on cardiovascular anoxia/reoxygenation (A/R) injury remain unknown. This study is aimed at exploring the effect of gastrodin on cardiomyocytes in A/R injury. Our results suggested that the protective effect of GAS on cardiomyocytes is associated with upregulated 14-3-3η levels. Pretreatment with GAS could increase the cell viability and decrease the activities of creatine phosphokinase (CPK) and lactate dehydrogenase (LDH). GAS could also reduce reactive oxygen species (ROS) production, inhibit mitochondrial permeability transition pore (mPTP) opening, alter the maintenance of the mitochondrial membrane potential (∆Ψm), decrease the activation of caspase-3, and finally restrain cell apoptosis. Downregulating 14-3-3η levels by transfection with siRNA14-3-3η clearly attenuated the protective effect of GAS on cardiomyocytes in A/R injury.
Collapse
|
8
|
Baig MF, Nayak VL, Budaganaboyina P, Mullagiri K, Sunkari S, Gour J, Kamal A. Synthesis and biological evaluation of imidazo[2,1-b]thiazole-benzimidazole conjugates as microtubule-targeting agents. Bioorg Chem 2018; 77:515-526. [PMID: 29459129 DOI: 10.1016/j.bioorg.2018.02.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 02/06/2018] [Accepted: 02/09/2018] [Indexed: 01/11/2023]
Abstract
A series of imidazo[2,1-b]thiazole-benzimidazole conjugates were synthesized and evaluated for their antiproliferative activity against four human cancer cell lines i.e.; HeLa (cervical), A549 (lung), MCF-7 (breast) and DU-145 (prostate) along with normal HEK-293 cell line. Amongst them, conjugate 6d displayed significant cytotoxicity against human lung cancer cell line, A549 with IC50 value 1.08 µM. Further, cell cycle analysis revealed that this compound arrested the cell cycle at G2/M phase in A549 cells. Furthermore, the tubulin polymerization assay results suggest that this conjugate (6d) exhibits significant inhibitory effect on the tubulin assembly with an IC50 value of 1.68 µM. Moreover, the apoptotic inducing properties of compound 6d was confirmed by Hoechst staining, measurement of mitochondrial membrane potential (ΔΨm) and annexin V-FITC assay. Further, molecular docking studies revealed that compound 6d occupied the colchicine binding site.
Collapse
Affiliation(s)
- Mirza Feroz Baig
- Medicinal Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad 500007, India; Academy of Scientific and Innovative Research, New Delhi 110 025, India
| | - V Lakshma Nayak
- Medicinal Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad 500007, India
| | - Prasad Budaganaboyina
- Medicinal Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad 500007, India
| | - Kishore Mullagiri
- Medicinal Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad 500007, India
| | - Satish Sunkari
- Medicinal Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad 500007, India; Academy of Scientific and Innovative Research, New Delhi 110 025, India
| | - Jitendra Gour
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Ahmed Kamal
- Medicinal Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad 500007, India; Academy of Scientific and Innovative Research, New Delhi 110 025, India; School of Pharmaceutical Education and Research(SPER), Jamia Hamdard, New Delhi 110062, India.
| |
Collapse
|
9
|
2-aryl benzimidazole conjugate induced apoptosis in human breast cancer MCF-7 cells through caspase independent pathway. Apoptosis 2018; 22:118-134. [PMID: 27770267 DOI: 10.1007/s10495-016-1290-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Apoptosis is a representative form of programmed cell death, which has been assumed to be critical for cancer prevention. Thus, any agent that can induce apoptosis may be useful for cancer treatment and apoptosis induction is arguably the most potent defense against cancer promotion. In our previous studies, 2-aryl benzimidazole conjugates were synthesized and evaluated for their antiproliferative activity and one of the new molecule (2f) was considered as a potential lead. This lead molecule showed significant antiproliferative activity against human breast cancer cell line, MCF-7. The results of the present study revealed that this compound arrested the cell cycle at G2/M phase. Topoisomerase II inhibition assay and Western blot analysis suggested that this compound effectively inhibits topoisomerase II activity which leads to apoptotic cell death. Apoptosis induction in MCF-7 cells was further confirmed by loss of mitochondrial membrane potential (∆Ψm), release of cytochrome c from mitochondria, an increase in the level of apoptosis inducing factor (AIF), generation of reactive oxygen species (ROS), up regulation of proapoptotic protein Bax and down regulation of anti apoptotic protein Bcl-2. Apoptosis assay using Annexin V-FITC assay also suggested that this compound induced cell death by apoptosis. However, compound 2f induced apoptosis could not be reversed by Z-VAD-FMK (a pan-caspase inhibitor) demonstrated that the 2f induced apoptosis was caspase independent. Further, 2f treatment did not activate caspase-7 and caspase-9 activity, suggesting that this compound induced apoptosis in breast cancer cells via a caspase independent pathway. Most importantly, this compound was less toxic towards non-tumorigenic breast epithelial cells, MCF-10A. Furthermore, docking studies also support the potentiality of this molecule to bind to the DNA topoisomerase II.
Collapse
|
10
|
Mullagiri K, Nayak VL, Sunkari S, Mani GS, Guggilapu SD, Nagaraju B, Alarifi A, Kamal A. New (3-(1 H-benzo[ d]imidazol-2-yl))/(3-(3 H-imidazo[4,5- b]pyridin-2-yl))-(1 H-indol-5-yl)(3,4,5-trimethoxyphenyl)methanone conjugates as tubulin polymerization inhibitors. MEDCHEMCOMM 2017; 9:275-281. [PMID: 30108921 DOI: 10.1039/c7md00450h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 11/21/2017] [Indexed: 01/11/2023]
Abstract
A series of new (3-(1H-benzo[d]imidazol-2-yl))/(3-(3H-imidazo[4,5-b]pyridin-2-yl))-(1H-indol-5-yl)(3,4,5-trimethoxyphenyl)methanone conjugates 4-6(a-i) were synthesized and evaluated for their antiproliferative activity on selected human cancer cell lines such as prostate (DU-145), lung (A549), cervical (HeLa) and breast (MCF-7). Most of these conjugates showed considerable cytotoxicity with IC50 values ranging from 0.54 to 31.86 μM. Among them, compounds 5g and 6f showed significant activity against human prostate cancer cell line DU-145 with IC50 values of 0.68 μM and 0.54 μM, respectively. Tubulin polymerization assay and immunofluorescence analysis results suggest that these compounds effectively inhibit microtubule assembly formation in DU-145. Further, the apoptosis-inducing ability of these derivatives (5g and 6f) was confirmed by Hoechst staining, measurement of mitochondrial membrane potential and ROS generation and annexin V-FITC assays.
Collapse
Affiliation(s)
- Kishore Mullagiri
- Medicinal Chemistry and Biotechnology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India .
| | - V Lakshma Nayak
- Medicinal Chemistry and Biotechnology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India .
| | - Satish Sunkari
- Medicinal Chemistry and Biotechnology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India .
| | - Geeta Sai Mani
- Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research (NIPER) , Hyderabad 500 037 , India
| | - Sravanthi Devi Guggilapu
- Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research (NIPER) , Hyderabad 500 037 , India
| | - Burri Nagaraju
- Medicinal Chemistry and Biotechnology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India .
| | - Abdullah Alarifi
- Catalytic Chemistry Research Chair , Chemistry Department , College of Science , King Saud University , Riyadh 11451 , Saudi Arabia
| | - Ahmed Kamal
- Medicinal Chemistry and Biotechnology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India . .,Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research (NIPER) , Hyderabad 500 037 , India.,Catalytic Chemistry Research Chair , Chemistry Department , College of Science , King Saud University , Riyadh 11451 , Saudi Arabia
| |
Collapse
|
11
|
Sultana F, Shaik SP, Nayak VL, Hussaini SMA, Marumudi K, Sridevi B, Shaik TB, Bhattacharjee D, Alarifi A, Kamal A. Design, Synthesis and Biological Evaluation of 2-Anilinopyridyl-Linked Oxindole Conjugates as Potent Tubulin Polymerisation Inhibitors. ChemistrySelect 2017. [DOI: 10.1002/slct.201701787] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Faria Sultana
- Division of Medicinal Chemistry and Pharmacology; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500 007 India
| | - Siddiq Pasha Shaik
- Division of Medicinal Chemistry and Pharmacology; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500 007 India
| | - Vadithe Lakshma Nayak
- Division of Medicinal Chemistry and Pharmacology; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500 007 India
| | - Syed Mohammed Ali Hussaini
- Division of Medicinal Chemistry and Pharmacology; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500 007 India
| | - Kanakaraju Marumudi
- Centre for Nuclear Magnetic Resonance; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
| | - Bhima Sridevi
- Division of Medicinal Chemistry and Pharmacology; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500 007 India
| | - Thokhir Basha Shaik
- Division of Medicinal Chemistry and Pharmacology; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500 007 India
| | - Debanjan Bhattacharjee
- Centre for Chemical Biology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
| | - Abdullah Alarifi
- Catalytic Chemistry Research Chair, Chemistry Department, College of Science; King Saud University; Riyadh 11451 Saudi Arabia
| | - Ahmed Kamal
- Division of Medicinal Chemistry and Pharmacology; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500 007 India
- Catalytic Chemistry Research Chair, Chemistry Department, College of Science; King Saud University; Riyadh 11451 Saudi Arabia
| |
Collapse
|
12
|
Prasad CV, Nayak VL, Ramakrishna S, Mallavadhani UV. Novel menadione hybrids: Synthesis, anticancer activity, and cell-based studies. Chem Biol Drug Des 2017; 91:220-233. [PMID: 28734085 DOI: 10.1111/cbdd.13073] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 03/21/2017] [Accepted: 07/08/2017] [Indexed: 12/16/2022]
Abstract
A series of novel menadione-based triazole hybrids were designed and synthesized by employing copper-catalyzed azide-alkyne cycloaddition (CuAAC). All the synthesized hybrids were characterized by their spectral data (1 H NMR, 13 C NMR, IR, and HRMS). The synthesized compounds were evaluated for their anticancer activity against five selected cancer cell lines including lung (A549), prostate (DU-145), cervical (Hela), breast (MCF-7), and mouse melanoma (B-16) using MTT assay. The screening results showed that majority of the synthesized compounds displayed significant anticancer activity. Among the tested compounds, the triazoles 5 and 6 exhibited potent activity against all cell lines. In particular, compound 6 showed higher potency than the standard tamoxifen and parent menadione against MCF-7 cell line. Flow cytometric analysis revealed that compound 6 arrested cell cycle at G0/G1 phase and induced apoptotic cell death which was further confirmed by Hoechst staining, measurement of mitochondrial membrane potential (ΔΨm) and Annexin-V-FITC assay. Thus, compound 6 can be considered as lead molecule for further development as potent anticancer therapeutic agent.
Collapse
Affiliation(s)
- Chakka Vara Prasad
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Vadithe Lakshma Nayak
- Department of Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Sistla Ramakrishna
- Department of Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | | |
Collapse
|
13
|
Reddy SD, Siva B, Phani Babu V, Vijaya M, Nayak VL, Mandal R, Tiwari AK, Shashikala P, Babu KS. New cycloartane type-triterpenoids from the areal parts of Caragana sukiensis and their biological activities. Eur J Med Chem 2017; 136:74-84. [DOI: 10.1016/j.ejmech.2017.04.065] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 04/04/2017] [Accepted: 04/23/2017] [Indexed: 01/11/2023]
|
14
|
Shaik SP, Vishnuvardhan M, Sultana F, Subba Rao A, Bagul C, Bhattacharjee D, Kapure JS, Jain N, Kamal A. Design and synthesis of 1,2,3-triazolo linked benzo[ d ]imidazo[2,1- b ]thiazole conjugates as tubulin polymerization inhibitors. Bioorg Med Chem 2017; 25:3285-3297. [DOI: 10.1016/j.bmc.2017.04.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 04/11/2017] [Indexed: 12/23/2022]
|
15
|
Han R, Tang F, Lu M, Xu C, Hu J, Mei M, Wang H. Astragalus polysaccharide ameliorates H2O2-induced human umbilical vein endothelial cell injury. Mol Med Rep 2017; 15:4027-4034. [PMID: 28487940 PMCID: PMC5436204 DOI: 10.3892/mmr.2017.6515] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 02/20/2017] [Indexed: 12/23/2022] Open
Abstract
Endothelial dysfunction caused by reactive oxygen species (ROS) has been implicated in numerous cardiovascular diseases. Astragalus polysaccharide (APS), an important bioactive component extracted from the Chinese herb Astragalus membranaceus, has been widely used for the treatment of cardiovascular disease. The present study aimed to investigate the effects of APS on hydrogen peroxide (H2O2)-induced human umbilical vein endothelial cell (HUVEC) injury. Following treatment with 400 µM H2O2 for 24 h, cell viability was decreased and apoptosis was increased. However, pretreatment with APS for 1 h significantly attenuated H2O2-induced injury in HUVECs. In addition, APS decreased intracellular ROS levels, increased the protein expression of endothelial nitric oxide synthase and copper-zinc superoxide dismutase, elevated intracellular cyclic guanosine monophosphate (an activity marker for nitric oxide) levels and restored the mitochondrial membrane potential, compared with cells treated with H2O2 only. In conclusion, the results of the present study suggested that APS may protect HUVECs from injury induced by H2O2 via increasing the cell antioxidant capacity and nitric oxide (NO) bioavailability, which may contribute to the improvement of the imbalance between ROS and NO levels.
Collapse
Affiliation(s)
- Ronghui Han
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Drug Research Institute, Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Futian Tang
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Drug Research Institute, Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Meili Lu
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Drug Research Institute, Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Chonghua Xu
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Drug Research Institute, Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Jin Hu
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Drug Research Institute, Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Meng Mei
- Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Province, Drug Research Institute, Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Hongxin Wang
- Department of Pharmacology, Key Laboratory of Cardiovascular and Cerebrovascular Drug Research of Liaoning Drug Research Institute, Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| |
Collapse
|
16
|
Mahesh R, Nayak VL, Babu KS, Riyaz S, Shaik TB, Kumar GB, Mallipeddi PL, Reddy CR, Shekar KC, Jose J, Nagesh N, Kamal A. Design, Synthesis, and in vitro and in vivo Evaluations of (Z)-3,4,5-Trimethoxystyrylbenzenesulfonamides/sulfonates as Highly Potent Tubulin Polymerization Inhibitors. ChemMedChem 2017; 12:678-700. [PMID: 28276645 DOI: 10.1002/cmdc.201600643] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 03/04/2017] [Indexed: 01/11/2023]
Abstract
Newer therapeutics can be developed in drug discovery by adopting the strategy of scaffold hopping of the privileged scaffolds from known bioactive compounds. This strategy has been widely employed in drug-discovery processes. Structure-based docking studies illustrate the basic underlying concepts and reveal that interactions of the sulfonamide group and hydrophobic interactions are crucial. On the basis of this strategy, over 60 synthetic analogues were synthesized and evaluated for their cytotoxicity against the NCI panel of 60 human cancer cell lines; the majority of these compounds exhibited promising cytotoxicity with GI50 values ranging between 18 and 50 nm. Among these compounds, (Z)-N-[2,3-dimethoxy-5-(3,4,5-trimethoxystyryl)phenyl]-4-methoxybenzenesulfonamide (7 a) and (Z)-N-[2-hydroxy-3-methoxy-6-(3,4,5-trimethoxystyryl)phenyl]-4-methoxybenzenesulfonamide (9 a) were found to be potent. Similar results were obtained against three human cancer cell lines with IC50 values ranging between 0.04 and 3.0 μm. Studies aimed at elucidating the mechanism of action of these new analogues revealed that they inhibited the in vitro polymerization of tubulin and disorganized the assembly of microtubules in HeLa and MCF-7cancer cells. Lead compounds 7 a and 9 a displayed notable in vivo antitumor activity in a HeLa tumor xenograft model. Our studies have resulted in the identification of a scaffold that can target tubulin polymerization, which should have significant potential toward the development of new antitumor drugs.
Collapse
Affiliation(s)
- Rasala Mahesh
- Medicinal Chemistry and Pharmacology Division, CSIR-IICT, Uppal Road, Hyderabad, 500007, India
| | - Vadithe Lakshma Nayak
- Medicinal Chemistry and Pharmacology Division, CSIR-IICT, Uppal Road, Hyderabad, 500007, India
| | - Korrapati Suresh Babu
- Medicinal Chemistry and Pharmacology Division, CSIR-IICT, Uppal Road, Hyderabad, 500007, India
| | - Syed Riyaz
- Medicinal Chemistry and Pharmacology Division, CSIR-IICT, Uppal Road, Hyderabad, 500007, India
| | - Thokhir Basha Shaik
- Medicinal Chemistry and Pharmacology Division, CSIR-IICT, Uppal Road, Hyderabad, 500007, India
| | - Gajjela Bharth Kumar
- Medicinal Chemistry and Pharmacology Division, CSIR-IICT, Uppal Road, Hyderabad, 500007, India
| | | | - Challa Ratna Reddy
- Medicinal Chemistry and Pharmacology Division, CSIR-IICT, Uppal Road, Hyderabad, 500007, India
| | - Kunta Chandra Shekar
- Medicinal Chemistry and Pharmacology Division, CSIR-IICT, Uppal Road, Hyderabad, 500007, India
| | - Jedy Jose
- CSIR-CCMB, Uppal Road, Hyderabad, 500007, India
| | | | - Ahmed Kamal
- Medicinal Chemistry and Pharmacology Division, CSIR-IICT, Uppal Road, Hyderabad, 500007, India.,Department of Medicinal Chemistry, NIPER-Hyderabad, 40, Dilip Road, Hyderabad, 500037, India
| |
Collapse
|
17
|
Sayeed IB, Lakshma Nayak V, Shareef MA, Chouhan NK, Kamal A. Design, synthesis and biological evaluation of imidazopyridine-propenone conjugates as potent tubulin inhibitors. MEDCHEMCOMM 2017; 8:1000-1006. [PMID: 30108815 DOI: 10.1039/c7md00043j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 02/28/2017] [Indexed: 01/11/2023]
Abstract
A library of imidazopyridine-propenone conjugates (8a-8u) were synthesized and evaluated for their antitumor activity against four human cancer cell lines, namely, prostate (DU-145), lung (A549), cervical (Hela) and breast (MCF-7) cancer cell lines. These conjugates showed good to moderate activity against the tested cell lines. Among them, two conjugates (8m and 8q) showed significant antiproliferative activity against the human lung cancer cell line (A549) with IC50 values of 0.86 μM and 0.93 μM, respectively. Flow cytometry analysis revealed that these compounds arrested the cell cycle at the G2/M phase in the human lung cancer cell line (A549), inhibiting tubulin polymerization leading to apoptosis. Further, Hoechst staining, decrease in mitochondrial membrane potential and Annexin V-FITC assay suggested that the cell death was due to apoptosis induction. Overall, the present investigation demonstrated that the synthesized imidazopyridine-propenone conjugates are promising tubulin inhibitors and apoptotic inducers.
Collapse
Affiliation(s)
- Ibrahim Bin Sayeed
- Medicinal Chemistry and Pharmacology Division , CSIR - Indian Institute of Chemical Technology , Hyderabad 500007 , India . .,Academy of Scientific and Innovative Research (AcSIR) , CSIR - Indian Institute of Chemical Technology , Hyderabad 500007 , India
| | - V Lakshma Nayak
- Medicinal Chemistry and Pharmacology Division , CSIR - Indian Institute of Chemical Technology , Hyderabad 500007 , India .
| | - Mohd Adil Shareef
- Medicinal Chemistry and Pharmacology Division , CSIR - Indian Institute of Chemical Technology , Hyderabad 500007 , India .
| | - Neeraj Kumar Chouhan
- Medicinal Chemistry and Pharmacology Division , CSIR - Indian Institute of Chemical Technology , Hyderabad 500007 , India .
| | - Ahmed Kamal
- Medicinal Chemistry and Pharmacology Division , CSIR - Indian Institute of Chemical Technology , Hyderabad 500007 , India .
| |
Collapse
|
18
|
Design and synthesis of imidazo[2,1-b]thiazole linked triazole conjugates: Microtubule-destabilizing agents. Eur J Med Chem 2017; 126:36-51. [DOI: 10.1016/j.ejmech.2016.09.060] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 09/17/2016] [Accepted: 09/19/2016] [Indexed: 01/11/2023]
|
19
|
Srikanth PS, Nayak VL, Suresh Babu K, Kumar GB, Ravikumar A, Kamal A. 2-Anilino-3-Aroylquinolines as Potent Tubulin Polymerization Inhibitors. ChemMedChem 2016; 11:2050-62. [PMID: 27465681 DOI: 10.1002/cmdc.201600259] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 07/07/2016] [Indexed: 01/11/2023]
Abstract
Several 2-anilino-3-aroylquinolines were designed, synthesized, and screened for their cytotoxic activity against five human cancer cell lines: HeLa, DU-145, A549, MDA-MB-231, and MCF-7. Their IC50 values ranged from 0.77 to 23.6 μm. Among the series, compounds 7 f [(4-fluorophenyl)(2-((4-fluorophenyl)amino)quinolin-3-yl)methanone] and 7 g [(4-chlorophenyl)(2-((4-fluorophenyl)amino)quinolin-3-yl)methanone] showed remarkable antiproliferative activity against human lung cancer and prostate cancer cell lines. The IC50 values for inhibiting tubulin polymerization were 2.24 and 2.10 μm for compounds 7 f and 7 g, respectively, and were much lower than that of the reference compound E7010 [N-(2-(4-hydroxyphenylamino)pyridin-3-yl)-4-methoxybenzenesulfonamide]. Furthermore, flow cytometric analysis revealed that these compounds arrest the cell cycle at the G2 /M phase, leading to apoptosis. Apoptosis was also confirmed by mitochondrial membrane potential, Annexin V-FITC assay, and intracellular ROS generation. Immunohistochemistry, western blot, and tubulin polymerization assays showed that these compounds disrupt tubulin polymerization. Molecular docking studies revealed that these compounds bind efficiently to β-tubulin at the colchicine binding site.
Collapse
Affiliation(s)
- P S Srikanth
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.,Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - V Lakshma Nayak
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Korrapati Suresh Babu
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - G Bharath Kumar
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - A Ravikumar
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.,Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500037, India
| | - Ahmed Kamal
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India. .,Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500037, India. .,Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.
| |
Collapse
|
20
|
Subba Rao AV, Vishnu Vardhan MVPS, Subba Reddy NV, Srinivasa Reddy T, Shaik SP, Bagul C, Kamal A. Synthesis and biological evaluation of imidazopyridinyl-1,3,4-oxadiazole conjugates as apoptosis inducers and topoisomerase IIα inhibitors. Bioorg Chem 2016; 69:7-19. [PMID: 27656775 DOI: 10.1016/j.bioorg.2016.09.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 09/01/2016] [Accepted: 09/02/2016] [Indexed: 12/27/2022]
Abstract
A series of imidazopyridinyl-1,3,4-oxadiazole conjugates were synthesized and investigated for their cytotoxic activity and some compounds showed promising cytotoxic activity. Compound 8q (NSC: 763639) exhibited notable growth inhibition that satisfies threshold criteria at single dose (10μM) on all human cancer cell lines. This compound was further evaluated at five dose levels (0.01, 0.1, 1, 10 and 100μM) to obtain GI50 values ranging from 1.30 to 5.64μM. Flow cytometric analysis revealed that compound 8q arrests the A549 cells in sub G1 phase followed by induction of apoptosis which was further confirmed by Annexin-V-FITC, Hoechst nuclear staining, caspase 3 activation, measurement of mitochondrial membrane potential and ROS generation. Topo II mediated DNA relaxation assay results showed that conjugate 8q could significantly inhibit the activity of topo II. Moreover, molecular docking studies also indicated binding to the topoisomerase enzyme (PDBID 1ZXN).
Collapse
Affiliation(s)
- A V Subba Rao
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - M V P S Vishnu Vardhan
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - N V Subba Reddy
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - T Srinivasa Reddy
- IICT-RMIT Research Centre, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Siddiq Pasha Shaik
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Chandrakant Bagul
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education & Research (NIPER), Hyderabad 500 037, India
| | - Ahmed Kamal
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; IICT-RMIT Research Centre, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; Department of Medicinal Chemistry, National Institute of Pharmaceutical Education & Research (NIPER), Hyderabad 500 037, India.
| |
Collapse
|
21
|
Pattnaik B, Lakshma Nayak V, Ramakrishna S, Venkata Mallavadhani U. Synthesis of ring-C modified oleanolic acid derivatives and their cytotoxic evaluation. Bioorg Chem 2016; 68:152-8. [PMID: 27522460 DOI: 10.1016/j.bioorg.2016.08.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Revised: 07/31/2016] [Accepted: 08/03/2016] [Indexed: 01/11/2023]
Abstract
Ring-C of oleanolic acid was chemically modified by treating with NBS under a variety of experimental conditions. The structures of the synthesized compounds were established by spectral analysis ((1)H &(13)C NMR and Mass). All the compounds were evaluated against a panel of five human cancer cell lines by using MTT assay. Among the tested compounds, 2 and 7 showed significant activity against breast cancer cell line, MCF-7. Most significantly, compound 7 showed several folds enhanced activity against MCF-7 cancer cell lines (IC50: 2.96μM) than that of the parent (1) and the intermediate compound (6). Flow cytometric analysis revealed that these compounds arrested the cell cycle in G0/G1 phase and induced mitochondrial mediated apoptosis.
Collapse
Affiliation(s)
- Banita Pattnaik
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Vadithe Lakshma Nayak
- Medicinal Chemistry & Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Sistla Ramakrishna
- Medicinal Chemistry & Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | | |
Collapse
|
22
|
Lakshma Nayak V, Nagaseshadri B, Vishnuvardhan M, Kamal A. Investigation of the apoptotic pathway induced by benzimidazole–oxindole conjugates against human breast cancer cells MCF-7. Bioorg Med Chem Lett 2016; 26:3313-3317. [DOI: 10.1016/j.bmcl.2016.05.045] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 04/25/2016] [Accepted: 05/16/2016] [Indexed: 12/21/2022]
|
23
|
Kamal A, Lakshma Nayak V, Nagesh N, Vishnuvardhan M, Subba Reddy N. Benzo[b]furan derivatives induces apoptosis by targeting the PI3K/Akt/mTOR signaling pathway in human breast cancer cells. Bioorg Chem 2016; 66:124-31. [DOI: 10.1016/j.bioorg.2016.04.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 04/13/2016] [Accepted: 04/25/2016] [Indexed: 01/11/2023]
|
24
|
Investigation of the mechanism and apoptotic pathway induced by 4β cinnamido linked podophyllotoxins against human lung cancer cells A549. Apoptosis 2016; 20:1518-29. [PMID: 26386574 DOI: 10.1007/s10495-015-1173-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Apoptosis is essential for normal development and the maintenance of homeostasis. It plays a necessary role to protect against carcinogenesis by eliminating damaged cells. Many studies have demonstrated that the dysregulation of apoptosis results in cancer and this provides an approach to develop therapeutic agents via inducing apoptosis. In our previous studies 4β-cinnamido linked podophyllotoxin conjugates were synthesized and evaluated for their cytotoxic activity in a panel of five human cancer cell lines and the new molecules like 17a and 17f were considered as potential leads. The cytotoxic activity was comparable to etoposide. These observations prompted us to investigate the mechanism underplaying the cytotoxic activity and apoptotic pathway induced by these compounds in human lung cancer cells A459. The results of the present study revealed that these compounds exhibited DNA topoisomerase IIα inhibition and induced mitochondrial mediated apoptosis. It was further confirmed by Mitochondrial membrane potential, Cytochrome c release, cleavage of poly (ADP-ribose) polymerase (PARP), Reactive oxygen species (ROS) generation, regulation of antiapoptotic protein Bcl-2 and pro apoptotic protein Bax studied by Western blot analysis. Annexin V-FITC assay also suggested that these compounds induced cell death by apoptosis. Pretreatment with N-acetyl-L-cysteine (NAC) prevented the generation of ROS. Further, pretreatment with NAC significantly inhibited 17a and 17f induced apoptosis, suggesting that ROS are the key mediators for 17a and 17f induced apoptosis. These data indicate that these compounds might induce apoptosis in A549 cells through a ROS mediated mitochondrial dysfunction pathway. Moreover, these compounds did not significantly inhibit the noncancerous human embryonic kidney cells, HEK-293. Docking studies also elucidate the potential of these molecules to bind to the DNA topoisomerase II. Podophyllotoxin analogs were investigated for their mechanism and apoptotic pathway against lung cancer cell line, A549. These podophyllotoxin analogs inhibited DNA topoisomerase IIα and induced mitochondrial mediated apoptosis in lung cancer cell line, A549. Western blot analysis suggested that these compounds inhibited the DNA topoisomerase IIα. Studies like, Measurement of mitochondrial membrane potential (∆Ψm), Generation of intracellular reactive oxygen species (ROS) and Annexin V-FITC assay suggested that these compounds induced mitochondrial mediated apoptosis. Pretreatment with N-acetyl-L-cysteine (NAC) suggested that ROS plays a role in 17a and 17f induced apoptosis. Further the apoptotic effect of these compounds was confirmed by western blot analysis of pro apoptotic protein Bax and antiapoptotic protein Bcl-2, Cytochrome c release and cleavage of poly (ADP-ribose) polymerase (PARP). Moreover, these compounds did not significantly inhibit the noncancerous human embryonic kidney cells, HEK-293.
Collapse
|
25
|
Kumar GB, Nayak VL, Sayeed IB, Reddy VS, Shaik AB, Mahesh R, Baig MF, Shareef MA, Ravikumar A, Kamal A. Design, synthesis of phenstatin/isocombretastatin-oxindole conjugates as antimitotic agents. Bioorg Med Chem 2016; 24:1729-40. [DOI: 10.1016/j.bmc.2016.02.047] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 02/29/2016] [Accepted: 02/29/2016] [Indexed: 01/11/2023]
|
26
|
Hussaini SMA, Yedla P, Babu KS, Shaik TB, Chityal GK, Kamal A. Synthesis and Biological Evaluation of 1,2,3-triazole tethered Pyrazoline and Chalcone Derivatives. Chem Biol Drug Des 2016; 88:97-109. [PMID: 26854643 DOI: 10.1111/cbdd.12738] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 01/12/2016] [Accepted: 01/19/2016] [Indexed: 01/10/2023]
Abstract
A series of pyrazoline derivatives and corresponding chalcone intermediates with substituents same as combretastatin-A4(CA-4) conjugated with triazole nucleus has been synthesized and evaluated for their anticancer potential. Sulphorhodamine B(SRB) assay indicated compound 12c to be the most active compound from the series with GI50 value of 6.7 μm against the human liver carcinoma cell line HepG2. Interestingly, the intermediate 11c exhibited more promising cytotoxicity demonstrating GI50 value of 1.3 μm against the prostate cancer cell line DU145. Compounds 11c and 12c caused accumulation of cells in G2/M phase and inhibited tubulin polymerization. Furthermore, these compounds reduce the mitochondrial membrane potential and activate caspases 3 and 9, thereby indicating their ability to trigger apoptosis.
Collapse
Affiliation(s)
- Syed Mohammed Ali Hussaini
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, 500607, India
| | - Poornachandra Yedla
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, 500607, India
| | - Korrapati Suresh Babu
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, 500607, India
| | - Thokhir B Shaik
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, 500607, India
| | - Ganesh Kumar Chityal
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, 500607, India
| | - Ahmed Kamal
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, 500607, India
| |
Collapse
|
27
|
Kamal A, Bajee S, Lakshma Nayak V, Venkata Subba Rao A, Nagaraju B, Ratna Reddy C, Jeevak Sopanrao K, Alarifi A. Synthesis and biological evaluation of arylcinnamide linked combretastatin-A4 hybrids as tubulin polymerization inhibitors and apoptosis inducing agents. Bioorg Med Chem Lett 2016; 26:2957-2964. [PMID: 27161282 DOI: 10.1016/j.bmcl.2016.03.049] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 02/26/2016] [Accepted: 03/14/2016] [Indexed: 10/22/2022]
Abstract
A series of new molecules have been designed based on a hybridization approach by combining the arylcinnamide and combretastatin pharmacophores. These were synthesized and evaluated for their cytotoxic activity, effect on inhibition of tubulin polymerization and apoptosis inducing ability. Most of the conjugates exhibited significant cytotoxic activity against some representative human cancer cell lines and two of the conjugates 6i and 6p displayed potent cytotoxicity with GI50 values of 56nM and 31nM respectively against the human breast cancer cell line (MCF-7). SAR studies revealed that 3,4-substitution on the phenyl ring of the cinnamide moiety is beneficial for enhanced cytotoxicity. Moreover, G2/M cell cycle arrest was induced by these conjugates (6i and 6p) apart from tubulin polymerization inhibition (IC50 of 1.97μM and 1.05μM respectively). Further, mitochondrial membrane potential, Annexin V-FITC and caspase-9 activation assays suggested that these conjugates induce cell death by apoptosis. Docking studies revealed that these conjugates interact and bind at the colchicine binding site of the tubulin.
Collapse
Affiliation(s)
- Ahmed Kamal
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India; Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Shaik Bajee
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Vadithe Lakshma Nayak
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | | | - Burri Nagaraju
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Challa Ratna Reddy
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Kapure Jeevak Sopanrao
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Abdullah Alarifi
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| |
Collapse
|
28
|
Khan M, Khan M, Al-Marri AH, Al-Warthan A, Alkhathlan HZ, Siddiqui MRH, Nayak VL, Kamal A, Adil SF. Apoptosis inducing ability of silver decorated highly reduced graphene oxide nanocomposites in A549 lung cancer. Int J Nanomedicine 2016; 11:873-83. [PMID: 27022256 PMCID: PMC4788371 DOI: 10.2147/ijn.s100903] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Recently, graphene and graphene-based materials have been increasingly used for various biological applications due to their extraordinary physicochemical properties. Here, we demonstrate the anticancer properties and apoptosis-inducing ability of silver doped highly reduced graphene oxide nanocomposites synthesized by employing green approach. These nano composites (PGE-HRG-Ag) were synthesized by using Pulicaria glutinosa extract (PGE) as a reducing agent and were evaluated for their anticancer properties against various human cancer cell lines with tamoxifen as the reference drug. A correlation between the amount of Ag nanoparticles on the surface of highly reduced graphene oxide (HRG) and the anticancer activity of nanocomposite was observed, wherein an increase in the concentration of Ag nanoparticles on the surface of HRG led to the enhanced anticancer activity of the nanocomposite. The nanocomposite PGE-HRG-Ag-2 exhibited more potent cytotoxicity than standard drug in A549 cells, a human lung cancer cell line. A detailed investigation was undertaken and Fluorescence activated cell sorting (FACS) analysis demonstrated that the nanocomposite PGE-HRG-Ag-2 showed G0/G1 phase cell cycle arrest and induced apoptosis in A549 cells. Studies such as, measurement of mitochondrial membrane potential, generation of reactive oxygen species (ROS) and Annexin V-FITC staining assay suggested that this compound induced apoptosis in human lung cancer cells.
Collapse
Affiliation(s)
- Merajuddin Khan
- Department of Chemistry, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Mujeeb Khan
- Department of Chemistry, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Abdulhadi H Al-Marri
- Department of Chemistry, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Abdulrahman Al-Warthan
- Department of Chemistry, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Hamad Z Alkhathlan
- Department of Chemistry, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | | | - Vadithe Lakshma Nayak
- Department of Medicinal Chemistry and Pharmacology, CSIR - Indian Institute of Chemical Technology, Hyderabad, India
| | - Ahmed Kamal
- Department of Medicinal Chemistry and Pharmacology, CSIR - Indian Institute of Chemical Technology, Hyderabad, India
| | - Syed F Adil
- Department of Chemistry, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| |
Collapse
|
29
|
Chandrashekhar M, Nayak VL, Ramakrishna S, Mallavadhani UV. Novel triazole hybrids of myrrhanone C, a natural polypodane triterpene: Synthesis, cytotoxic activity and cell based studies. Eur J Med Chem 2016; 114:293-307. [PMID: 27015609 DOI: 10.1016/j.ejmech.2016.03.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 03/03/2016] [Accepted: 03/04/2016] [Indexed: 12/18/2022]
Abstract
The 3-keto functionality in ring A of myrrhanone C, a natural bicyclic triterpene has been chemically modified and synthesized 27 novel triazole hybrids belonging to two different series in very good to excellent yields (66-83%). The synthesized compounds were thoroughly characterized by their spectroscopic data (IR, (1)H&(13)C NMR, HRMS). All the synthesized compounds were evaluated for their cytotoxic potential against a panel of five human cancer cell lines by employing MTT assay using doxorubicin as the standard. In general the synthesized compounds showed anticancer activity against almost all the cell lines screened. Interestingly, the oxime based triazoles (4a-4n) showed higher activity than the benzylidene triazoles (6a-6m). Most significantly compound 4a showed potent activity against all the tested cell lines, especially against lung cancer (A-549) with an IC 50 of 6.16 μm. In view of their significant activity against lung cancer cell lines, compounds 4a and 4l were subjected to detailed biological studies, which revealed that they arrested cell cycle in G2/M phase and induced cell death by apoptosis that was further confirmed by Hoechst staining, measurement of mitochondrial membrane potential (ΔΨm) and Annexin V-FITC assay. These compounds will serve as lead molecules in the development of potent anticancer drug candidates especially for lung cancer.
Collapse
Affiliation(s)
- Madasu Chandrashekhar
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, 500007, India
| | - Vadithe Lakshma Nayak
- Department of Medicinal Chemistry & Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Sistla Ramakrishna
- Department of Medicinal Chemistry & Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Uppuluri Venkata Mallavadhani
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, 500007, India.
| |
Collapse
|
30
|
Kamal A, Mahesh R, Nayak VL, Babu KS, Kumar GB, Shaik AB, Kapure JS, Alarifi A. Discovery of pyrrolospirooxindole derivatives as novel cyclin dependent kinase 4 (CDK4) inhibitors by catalyst-free, green approach. Eur J Med Chem 2016; 108:476-485. [DOI: 10.1016/j.ejmech.2015.11.046] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 11/05/2015] [Accepted: 11/25/2015] [Indexed: 01/11/2023]
|
31
|
Kamal A, Subba Rao AV, Vishnuvardhan MVPS, Srinivas Reddy T, Swapna K, Bagul C, Subba Reddy NV, Srinivasulu V. Synthesis of 2-anilinopyridyl-triazole conjugates as antimitotic agents. Org Biomol Chem 2015; 13:4879-95. [PMID: 25765224 DOI: 10.1039/c5ob00232j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A series of 2-anilinopyridyl–triazole conjugates (6a–t) were prepared and evaluated for their cytotoxic activity against a panel of three human cancer cell lines. Among them compounds 6q, 6r and 6s showed significant cytotoxic activity with IC50 values ranging from 0.1 to 4.1 μM. Structure–activity relationships were elucidated with various substitutions on these conjugates. Flow cytometric analysis revealed that these compounds arrest the cell cycle at the G2/M phase and induce cell death by apoptosis. The tubulin polymerization assay and immunofluorescence analysis showed that these compounds (6q, 6r and 6s) effectively inhibited the microtubule assembly in human prostate cancer cells (DU-145). The docking studies showed that 6s interacts and binds efficiently with the tubulin protein at the colchicine binding site. This was further confirmed by the colchicine competitive binding assay. Moreover, compounds 6q, 6r and 6s possess anti-tubulin activity both in vitro and within cells as demonstrated by the ratio of soluble versus polymerized tubulin. Further the apoptotic effects of compounds were confirmed by Hoechst staining, caspase 3 activation, annexin-V FITC, mitochondrial membrane potential and DNA fragmentation analysis. Interestingly, these compounds did not affect the normal human embryonic kidney cells, HEK-293.
Collapse
|
32
|
Macedo D, Mendonça Júnior FJB, de Moura RO, Marques-Santos LF. Antimitotic activity of the pyrimidinone derivative py-09 on sea urchin embryonic development. Toxicol In Vitro 2015; 31:72-85. [PMID: 26616279 DOI: 10.1016/j.tiv.2015.11.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 11/09/2015] [Accepted: 11/21/2015] [Indexed: 02/03/2023]
Abstract
Chemotherapy is the main cancer treatment and consists of drug administration that interferes with several metabolic pathways, leading to tumor cell death. Antimitotic drugs have a relevant role in chemotherapy. This study aimed to investigate the effect of a pyrimidinone derivative (6-(p-Anisyl)-2-(p-chlorophenyl)-4-oxo-3,4-dihydropyrimidine-5-carbonitrile, Py-09) on sea urchin embryonic development model. The effects of the compound were analyzed on fertilization, embryonic development, mitochondrial membrane potential (ΔΨm), production of reactive oxygen species (ROS) and ABC transporter activity. Py-09 inhibited the fertilization and the embryonic development in a time and dose-dependent pattern, with the maximum effect at 50 μM (EC50=12.5 μM). Py-09 induced the loss of ΔΨm without altering ROS intracellular levels. Morphological changes were observed in the pattern of embryo cleavage (unequal cleavage) and at larval stages (fissures of spicules and pigment cell leakage). We also demonstrated that Py-09 is not an ABC transporter substrate and the derivative does not circumvent the MXR phenomenon. Our study reports--for the first time--the antimitotic activity of Py-09 and stimulates new research on the potential of Py-09 as a pharmacological tool for in vitro studies, as well as its use as a new anticancer drug.
Collapse
Affiliation(s)
- Dalliane Macedo
- Laboratório de Biologia Celular e do Desenvolvimento (LABID), Departamento de Biologia Molecular, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
| | | | | | - Luis Fernando Marques-Santos
- Laboratório de Biologia Celular e do Desenvolvimento (LABID), Departamento de Biologia Molecular, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil.
| |
Collapse
|
33
|
Ding X, Wang D, Li L, Ma H. Dehydroepiandrosterone ameliorates H2O2-induced Leydig cells oxidation damage and apoptosis through inhibition of ROS production and activation of PI3K/Akt pathways. Int J Biochem Cell Biol 2015; 70:126-39. [PMID: 26643608 DOI: 10.1016/j.biocel.2015.11.018] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 11/13/2015] [Accepted: 11/26/2015] [Indexed: 02/07/2023]
Abstract
Dehydroepiandrosterone (DHEA) is widely used as a nutritional supplement, and administration of DHEA produces a number of beneficial effects in the elderly. Many researchers have suggested that DHEA exerts it function after conversion into more biologically active hormones in peripheral target cells. The actions of DHEA in Leydig cells, a major target cell of DHEA biotransformation in males, are not clear. The present study found that DHEA increased cell viability and decreased reactive oxygen species (ROS) and malondialdehyde contents in H2O2-induced Leydig cells. DHEA significantly increased the activities of superoxide dismutase, catalase and peroxidase, and decreased the DNA damage in H2O2-induced Leydig cells. Apoptosis was significant decreased in H2O2-induced Leydig cells after DHEA treatment. DHEA inhibited the loss of mitochondrial membrane potential (ΔΨm) and the upregulation of the caspase-3 protein level induced by H2O2 in Leydig cells. DHEA also reversed the decrease in PI3K and p-Akt protein levels induced by H2O2. These data showed that DHEA could ameliorate H2O2-induced oxidative damage by increasing anti-oxidative enzyme activities, which resulted in reduced ROS content, and decreased apoptosis, mainly by preventing the loss of ΔΨm and inhibiting caspase-3 protein levels via activation of PI3K/Akt signaling pathways. These results increase our understanding of the molecular mechanism of the anti-ageing effect of DHEA.
Collapse
Affiliation(s)
- Xiao Ding
- Key Laboratory of Animal Physiology and Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Dian Wang
- Key Laboratory of Animal Physiology and Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Longlong Li
- Key Laboratory of Animal Physiology and Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Haitian Ma
- Key Laboratory of Animal Physiology and Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China.
| |
Collapse
|
34
|
Reddy CN, Nayak VL, Mani GS, Kapure JS, Adiyala PR, Maurya RA, Kamal A. Synthesis and biological evaluation of spiro[cyclopropane-1,3′-indolin]-2′-ones as potential anticancer agents. Bioorg Med Chem Lett 2015; 25:4580-6. [DOI: 10.1016/j.bmcl.2015.08.056] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 08/12/2015] [Accepted: 08/21/2015] [Indexed: 01/11/2023]
|
35
|
Kamal A, Rao AVS, Nayak VL, Reddy NVS, Swapna K, Ramakrishna G, Alvala M. Synthesis and biological evaluation of imidazo[1,5-a]pyridine-benzimidazole hybrids as inhibitors of both tubulin polymerization and PI3K/Akt pathway. Org Biomol Chem 2015; 12:9864-80. [PMID: 25354805 DOI: 10.1039/c4ob01930j] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A series of imidazo[1,5-a]pyridine-benzimidazole hybrids (5a–aa) were prepared and evaluated for their cytotoxic activity against a panel of sixty human tumor cell lines. Among them compounds 5d and 5l showed significant cytotoxic activity with GI50 values ranging from 1.06 to 14.9 μM and 0.43 to 7.73 μM, respectively. Flow cytometric analysis revealed that these compounds arrest the cell cycle at G2/M phase and induced cell death by apoptosis. The tubulin polymerization assay (IC50 of 5d is 3.25 μM and 5l is 1.71 μM) and immunofluorescence analysis showed that these compounds effectively inhibited the microtubule assembly in human breast cancer cells (MCF-7). Further, the apoptotic effects of compounds were confirmed by Hoechst staining, mitochondrial membrane potential, cytochrome c release, ROS generation, caspase 9 activation and DNA fragmentation analysis. After treatment with these compounds for 48 h, p-PTEN and p-AKT levels were markedly decreased. Moreover, these compounds did not significantly inhibit the normal human embryonic kidney cells, HEK-293. The molecular docking simulations predicted the binding interactions of 5d and 5l with colchicine binding site of the tubulin, which is in compliance with the antiproliferative activity data.
Collapse
Affiliation(s)
- Ahmed Kamal
- Medicinal Chemistry & Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India.
| | | | | | | | | | | | | |
Collapse
|
36
|
Berardi DE, Flumian C, Campodónico PB, Urtreger AJ, Diaz Bessone MI, Motter AN, Bal de Kier Joffé ED, Farias EF, Todaro LB. Myoepithelial and luminal breast cancer cells exhibit different responses to all-trans retinoic acid. Cell Oncol (Dordr) 2015; 38:289-305. [PMID: 26044847 DOI: 10.1007/s13402-015-0230-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/14/2015] [Indexed: 12/17/2022] Open
Abstract
PURPOSE Breast cancer is the leading cause of death among women worldwide. The exact role of luminal epithelial (LEP) and myoephitelial (MEP) cells in breast cancer development is as yet unclear, as also how retinoids may affect their behaviour. Here, we set out to evaluate whether retinoids may differentially regulate cell type-specific processes associated with breast cancer development using the bi-cellular LM38-LP murine mammary adenocarcinoma cell line as a model. MATERIALS AND METHODS The bi-cellular LM38-LP murine mammary cell line was used as a model throughout all experiments. LEP and MEP subpopulations were separated using inmunobeads, and the expression of genes known to be involved in epithelial to mysenchymal transition (EMT) was assessed by qPCR after all-trans retinoic acid (ATRA) treatment. In vitro invasive capacities of LM38-LP cells were evaluated using 3D Matrigel cultures in conjunction with confocal microscopy. Also, in vitro proliferation, senescence and apoptosis characteristics were evaluated in the LEP and MEP subpopulations after ATRA treatment, as well as the effects of ATRA treatment on the clonogenic, adhesive and invasive capacities of these cells. Mammosphere assays were performed to detect stem cell subpopulations. Finally, the orthotopic growth and metastatic abilities of LM38-LP monolayer and mammosphere-derived cells were evaluated in vivo. RESULTS We found that ATRA treatment modulates a set of genes related to EMT, resulting in distinct gene expression signatures for the LEP or MEP subpopulations. We found that the MEP subpopulation responds to ATRA by increasing its adhesion to extracellular matrix (ECM) components and by reducing its invasive capacity. We also found that ATRA induces apoptosis in LEP cells, whereas the MEP compartment responded with senescence. In addition, we found that ATRA treatment results in smaller and more organized LM38-LP colonies in Matrigel. Finally, we identified a third subpopulation within the LM38-LP cell line with stem/progenitor cell characteristics, exhibiting a partial resistance to ATRA. CONCLUSIONS Our results show that the luminal epithelial (LEP) and myoephitelial (MEP) mammary LM38-P subpopulations respond differently to ATRA, i.e., the LEP subpopulation responds with increased cell cycle arrest and apoptosis and the MEP subpopulation responds with increased senescence and adhesion, thereby decreasing its invasive capacity. Finally, we identified a third subpopulation with stem/progenitor cell characteristics within the LM38-LP mammary adenocarcinoma cell line, which appears to be non-responsive to ATRA.
Collapse
MESH Headings
- Adenocarcinoma/drug therapy
- Adenocarcinoma/genetics
- Adenocarcinoma/metabolism
- Animals
- Antineoplastic Agents/pharmacology
- Apoptosis/drug effects
- Blotting, Western
- Breast Neoplasms/drug therapy
- Breast Neoplasms/genetics
- Breast Neoplasms/metabolism
- Cell Cycle Checkpoints/drug effects
- Cell Line, Tumor
- Cell Movement/drug effects
- Cell Proliferation/drug effects
- Disease Models, Animal
- Epithelial Cells/drug effects
- Epithelial Cells/metabolism
- Epithelial Cells/pathology
- Estrogen Receptor alpha/metabolism
- Female
- Gene Expression Regulation, Neoplastic/drug effects
- Humans
- Mammary Neoplasms, Animal/drug therapy
- Mammary Neoplasms, Animal/genetics
- Mammary Neoplasms, Animal/metabolism
- Mice, Inbred BALB C
- Microscopy, Fluorescence
- Models, Biological
- Receptors, Retinoic Acid/genetics
- Reverse Transcriptase Polymerase Chain Reaction
- Tretinoin/pharmacology
- Tumor Burden/drug effects
Collapse
Affiliation(s)
- Damián E Berardi
- Research Area, Institute of Oncology "Angel H. Roffo", University of Buenos Aires, Av. San Martín 5481, C1417DTB, Buenos Aires, Argentina
| | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Ishijima N, Kanki K, Shimizu H, Shiota G. Activation of AMP-activated protein kinase by retinoic acid sensitizes hepatocellular carcinoma cells to apoptosis induced by sorafenib. Cancer Sci 2015; 106:567-75. [PMID: 25683251 PMCID: PMC4452157 DOI: 10.1111/cas.12633] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2014] [Revised: 01/12/2015] [Accepted: 02/08/2015] [Indexed: 12/24/2022] Open
Abstract
To improve the outcome of cancer chemotherapy, strategies to enhance the efficacy of anticancer drugs are required. Sorafenib is the only drug to prolong overall survival of the patients with hepatocellular carcinoma (HCC), however, the outcome is still not satisfactory. Retinoids, vitamin A derivatives, have been known to exhibit inhibitory effects on various cancers including HCC. In this study, we investigated the effects of combined treatment using sorafenib and retinoids including all-trans retinoic acid (ATRA), NIK-333, and Am80 on HCC cells. Cell viability assays in six HCC cell lines, HepG2, PLC/PRF/5, HuH6, HLE, HLF, and Hep3B, revealed that 5 and 10 μM ATRA, concentrations that do not exert cytotoxic effects, enhanced the cytotoxicity of sorafenib, being much more effective than NIK-333 and Am80. We found that ATRA induced AMP-activated protein kinase activation, which was followed by reduced intracellular ATP level. Gene expression analysis revealed that ATRA decreased the expression of glycolytic genes such as GLUT-1 and LDHA. In the combination treatment using ATRA and sorafenib, increased apoptosis, followed by the activation of p38 MAPK and JNK, the upregulation and translocation of Bax to mitochondria, and the activation of caspase-3, was observed. Suppression of AMP-activated protein kinase by siRNA restored the viability of the cells treated with ATRA and sorafenib. Our results thus indicate that ATRA is useful for enhancing the cytotoxicity of sorafenib against HCC cells by regulating the energy metabolism of HCC cells.
Collapse
Affiliation(s)
- Naoki Ishijima
- Division of Molecular and Genetic Medicine, Department of Genetic Medicine and Regenerative Therapeutics, Graduate School of Medicine, Tottori University, Yonago, Japan
| | - Keita Kanki
- Division of Molecular and Genetic Medicine, Department of Genetic Medicine and Regenerative Therapeutics, Graduate School of Medicine, Tottori University, Yonago, Japan
| | - Hiroki Shimizu
- Division of Molecular and Genetic Medicine, Department of Genetic Medicine and Regenerative Therapeutics, Graduate School of Medicine, Tottori University, Yonago, Japan
| | - Goshi Shiota
- Division of Molecular and Genetic Medicine, Department of Genetic Medicine and Regenerative Therapeutics, Graduate School of Medicine, Tottori University, Yonago, Japan
| |
Collapse
|
38
|
Synthesis of 2-anilinopyridine dimers as microtubule targeting and apoptosis inducing agents. Bioorg Med Chem 2014; 22:6755-67. [DOI: 10.1016/j.bmc.2014.11.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 11/01/2014] [Accepted: 11/01/2014] [Indexed: 01/11/2023]
|
39
|
Kamal A, Shaik B, Nayak VL, Nagaraju B, Kapure JS, Shaheer Malik M, Shaik TB, Prasad B. Synthesis and biological evaluation of 1,2,3-triazole linked aminocombretastatin conjugates as mitochondrial mediated apoptosis inducers. Bioorg Med Chem 2014; 22:5155-67. [PMID: 25192811 DOI: 10.1016/j.bmc.2014.08.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 07/23/2014] [Accepted: 08/11/2014] [Indexed: 12/29/2022]
Abstract
A series of 1,2,3-triazole linked aminocombretastatin conjugates were synthesized and evaluated for cytotoxicity, inhibition of tubulin polymerization and apoptosis inducing ability. Most of the conjugates exhibited significant anticancer activity against some representative human cancer cell lines and two of the conjugates 6d and 7c displayed potent cytotoxicity with IC50 values of 53 nM and 44 nM against A549 human lung cancer respectively, and were comparable to combretastatin A-4 (CA-4). SAR studies revealed that 1-benzyl substituted triazole moiety with an amide linkage at 3-position of B-ring of the combretastatin subunit are more active compared to 2-position. G2/M cell cycle arrest was induced by these conjugates 6d and 7c and the tubulin polymerization assay (IC50 of 1.16 μM and 0.95 μM for 6d and 7c, respectively) as well as immunofluorescence analysis showed that these conjugates effectively inhibit microtubule assembly at both molecular and cellular levels in A549 cells. Colchicine competitive binding assay suggested that these conjugates bind at the colchicine binding site of tubulin as also observed from the docking studies. Further, mitochondrial membrane potential, ROS generation, caspase-3 activation assay, Hoechst staining and DNA fragmentation analysis revealed that these conjugates induce cell death by apoptosis.
Collapse
Affiliation(s)
- Ahmed Kamal
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India; Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India.
| | - Bajee Shaik
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - V Lakshma Nayak
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - Burri Nagaraju
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - Jeevak Sopanrao Kapure
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India; Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - M Shaheer Malik
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - Thokhir Basha Shaik
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - B Prasad
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
| |
Collapse
|
40
|
Wang J, Wu XP, Song XM, Han CR, Chen Z, Chen GY. F-01A, an antibiotic, inhibits lung cancer cells proliferation. Chin J Nat Med 2014; 12:284-9. [PMID: 24863353 DOI: 10.1016/s1875-5364(14)60055-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Indexed: 11/24/2022]
Abstract
AIM In an effort to identify novel, small molecules which can affect the proliferation of lung cancer cells, F-01A, a polyether antibiotic isolated from the fermentation broth of Streptomyces was tested. METHOD F-01A was tested for its antitumor properties on the lung cancer cell line SPC-A-1, at six doses (0.1, 0.5, 1, 2.5, and 5 μmol·L(-1)), using various cellular assays. Cell viability was measured by the MTT assay, Hochest 33258 was used to study nuclear morphology; DNA ladder and the loss of mitochondrial membrane potential were also evaluated. RESULTS F-01A induces apoptosis against SPC-A-1 cells in a dose-dependent manner. The IC50 is 0.65 μmol·L(-1), and the inhibition at 5 μmol·L(-1) is 87.89%. Further, JC-1 staining indicates F-01A could induce the loss of mitochondrial membrane potential, and the DNA fragment is evident. CONCLUSION Mechanistic analysis showed that F-01A induced apoptosis of cancer cells probably in the mitochondrial pathway. The antitumor actions of F-01A involve activation of the apoptotic pathway against SPC-A-1 cells, and it may be valuable for further drug development.
Collapse
Affiliation(s)
- Jing Wang
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, China; College of Life Sciences, Hainan Normal University, Haikou 571158, China
| | - Xiao-Peng Wu
- Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Xin-Ming Song
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, China
| | - Chang-Ri Han
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, China
| | - Zhong Chen
- College of Life Sciences, Hainan Normal University, Haikou 571158, China.
| | - Guang-Ying Chen
- Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, China.
| |
Collapse
|
41
|
Wanka L, Iqbal K, Schreiner PR. The lipophilic bullet hits the targets: medicinal chemistry of adamantane derivatives. Chem Rev 2013; 113:3516-604. [PMID: 23432396 PMCID: PMC3650105 DOI: 10.1021/cr100264t] [Citation(s) in RCA: 439] [Impact Index Per Article: 39.9] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Lukas Wanka
- Institute of Organic Chemistry, Justus-Liebig University Giessen, Heinrich-Buff-Ring 58, 35392 Giessen, Germany; Fax +49(641)9934309
- Department of Neurochemistry, New York State Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Road, Staten Island, NY 10314-6399, USA
| | - Khalid Iqbal
- Department of Neurochemistry, New York State Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Road, Staten Island, NY 10314-6399, USA
| | - Peter R. Schreiner
- Institute of Organic Chemistry, Justus-Liebig University Giessen, Heinrich-Buff-Ring 58, 35392 Giessen, Germany; Fax +49(641)9934309
| |
Collapse
|
42
|
Swart C, Olivier A, Dithebe K, Pohl C, van Wyk P, Swart H, Coetsee E, Kock L. Yeast sensors for novel drugs: chloroquine and others revealed. SENSORS 2012. [PMID: 23201985 PMCID: PMC3545556 DOI: 10.3390/s121013058] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
In this study the mitochondrion is regarded as a target to reveal compounds that may be used to combat various diseases. Consequently, the sexual structures of yeasts (with high mitochondrial activity) were identified as sensors to screen for various anti-mitochondrial drugs that may be toxic to humans and that are directed, amongst others, against fungal diseases and cancer. Strikingly, these sensors indicated that chloroquine is a potent pro-mitochondrial drug which stimulated yeast sexual reproduction. In addition, these sensors also showed that some Non-Steroidal Anti-Inflammatory drugs (NSAIDs), anti-malarial drugs, antifungal and anticancer drugs are anti-mitochondrial. These yeast sensor bio-assays may fast track studies aimed at discovering new drugs as well as their mechanisms and should now be further evaluated for selectivity towards anti-/ pro-mitochondrials, fertility drugs and contraceptives, using in vitro, in vivo, in silico and omics research.
Collapse
Affiliation(s)
- Chantel Swart
- UNESCO MIRCEN: Microbial, Biochemical and Food Biotechnology, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa; E-Mails: (C.S.); (A.O.); (K.D.); (C.P.)
| | - Andries Olivier
- UNESCO MIRCEN: Microbial, Biochemical and Food Biotechnology, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa; E-Mails: (C.S.); (A.O.); (K.D.); (C.P.)
| | - Khumisho Dithebe
- UNESCO MIRCEN: Microbial, Biochemical and Food Biotechnology, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa; E-Mails: (C.S.); (A.O.); (K.D.); (C.P.)
| | - Carolina Pohl
- UNESCO MIRCEN: Microbial, Biochemical and Food Biotechnology, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa; E-Mails: (C.S.); (A.O.); (K.D.); (C.P.)
| | - Pieter van Wyk
- Centre for Microscopy, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa; E-Mail:
| | - Hendrik Swart
- Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa; E-Mails: (H.S.); (E.C.)
| | - Elizabeth Coetsee
- Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa; E-Mails: (H.S.); (E.C.)
| | - Lodewyk Kock
- UNESCO MIRCEN: Microbial, Biochemical and Food Biotechnology, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa; E-Mails: (C.S.); (A.O.); (K.D.); (C.P.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +27-51-401-2249; Fax: +27-51-401-9376
| |
Collapse
|
43
|
Jia Y, Ji L, Zhang S, Xu L, Yin L, Li L, Zhao Y, Peng J. Total flavonoids from Rosa Laevigata Michx fruit attenuates hydrogen peroxide induced injury in human umbilical vein endothelial cells. Food Chem Toxicol 2012; 50:3133-41. [DOI: 10.1016/j.fct.2012.06.047] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Revised: 06/25/2012] [Accepted: 06/26/2012] [Indexed: 10/28/2022]
|
44
|
Weissig V. Mitochondria-Specific Nanocarriers for Improving the Proapoptotic Activity of Small Molecules. Methods Enzymol 2012; 508:131-55. [DOI: 10.1016/b978-0-12-391860-4.00007-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
45
|
Balkan W, Rodríguez-Gonzalez M, Pang M, Fernandez I, Troen BR. Retinoic acid inhibits NFATc1 expression and osteoclast differentiation. J Bone Miner Metab 2011; 29:652-61. [PMID: 21384111 DOI: 10.1007/s00774-011-0261-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2010] [Accepted: 01/10/2011] [Indexed: 10/18/2022]
Abstract
Ingestion of excess vitamin A appears to correlate with an increased fracture risk, an outcome that is likely mediated by retinoic acids (RAs); these are vitamin A metabolites that have dramatic effects on skeletal development. We studied the impacts of RA and isoform-specific RA receptor (RAR) agonists (α, β, and γ) on osteoclast formation (osteoclastogenesis) in two model systems: RAW264.7 cells and murine bone marrow-derived monocytes. The pan-RAR agonists, all-trans and 9-cis RA, inhibited receptor activator of nuclear factor kappa B ligand (RANKL)-mediated osteoclast differentiation in a concentration-dependent manner. Isoform-specific RAR agonists (α, β, and γ) also inhibited osteoclastogenesis, with the RARα agonist producing the most consistent reductions in both osteoclast number and size and total area covered. Inhibition of osteoclastogenesis correlated with reductions in expression, DNA binding, and nuclear abundance of nuclear factor of activated T cells c1 (NFATc1), a transcription factor critical for osteoclastogenesis. The upregulation of three NFATc1-responsive genes, cathepsin K, dendritic cell-specific transmembrane protein and osteoclast-associated receptor were similarly reduced following RA or RAR agonist exposure. These results suggest that RA blocks in vitro RANKL-mediated osteoclastogenesis by decreasing NFATc1 function.
Collapse
Affiliation(s)
- Wayne Balkan
- Geriatric Research, Education, and Clinical Center and Research Service, Bruce W. Carter Veterans Affairs Healthcare System, Miami, FL 33125, USA.
| | | | | | | | | |
Collapse
|
46
|
Mamede AC, Tavares SD, Abrantes AM, Trindade J, Maia JM, Botelho MF. The Role of Vitamins in Cancer: A Review. Nutr Cancer 2011; 63:479-94. [DOI: 10.1080/01635581.2011.539315] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ana Catarina Mamede
- a Biophysics/Biomathematics Institute, IBILI, Faculty of Medicine , University of Coimbra , Coimbra, Portugal
- b CICS-UBI, Health Sciences Research Centre, Faculty of Health Sciences , University of Beira Interior , Covilhã, Portugal
- c Centre of Investigation on Environment, Genetics, and Oncobiology, Faculty of Medicine , University of Coimbra , Coimbra, Portugal
| | - Sónia Dorilde Tavares
- a Biophysics/Biomathematics Institute, IBILI, Faculty of Medicine , University of Coimbra , Coimbra, Portugal
- d Faculty of Sciences and Technology , University of Coimbra , Coimbra, Portugal
| | - Ana Margarida Abrantes
- a Biophysics/Biomathematics Institute, IBILI, Faculty of Medicine , University of Coimbra , Coimbra, Portugal
- c Centre of Investigation on Environment, Genetics, and Oncobiology, Faculty of Medicine , University of Coimbra , Coimbra, Portugal
| | - Joana Trindade
- a Biophysics/Biomathematics Institute, IBILI, Faculty of Medicine , University of Coimbra , Coimbra, Portugal
- d Faculty of Sciences and Technology , University of Coimbra , Coimbra, Portugal
| | - Jorge Manuel Maia
- e Faculty of Sciences , University of Beira Interior , Covilhã, Portugal
| | - Maria Filomena Botelho
- a Biophysics/Biomathematics Institute, IBILI, Faculty of Medicine , University of Coimbra , Coimbra, Portugal
- c Centre of Investigation on Environment, Genetics, and Oncobiology, Faculty of Medicine , University of Coimbra , Coimbra, Portugal
- f Institute of Nuclear Sciences Applied to Health , University of Coimbra , Coimbra, Portugal
| |
Collapse
|
47
|
Nishio R, Tsuchiya H, Yasui T, Matsuura S, Kanki K, Kurimasa A, Hisatome I, Shiota G. Disrupted plasma membrane localization of equilibrative nucleoside transporter 2 in the chemoresistance of human pancreatic cells to gemcitabine (dFdCyd). Cancer Sci 2011; 102:622-9. [PMID: 21205085 DOI: 10.1111/j.1349-7006.2010.01837.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Although the nucleoside pyrimidine analogue gemcitabine is the most effective single agent in the palliation of advanced pancreatic cancer, cellular resistance to gemcitabine treatment is a major problem in the clinical scene. To clarify the molecular mechanisms responsible for chemoresistance to gemcitabine, mRNA expression of the key enzymes including cytidine deaminase (CDA), deoxycytidine kinase (dCK), 5'-nucleotidase (NT5), equilibrative nucleoside transporter 1 and 2 (ENT1 and ENT2), dCMP deaminase (dCMPK), ribonucleotide reductase M1 and M2 (RRM1 and RRM2), thymidylate synthase (TS) and CTP synthase (CTPS) was examined. The interacellular uptake of gemcitabine was greatly impaired in the chemoresistant cell lines due to dysfunction of ENT1 and ENT2. Protein expression of ENT1 and ENT2 and their protein coding sequences were not altered. Immunohistochemical and western blot analyses revealed that localization of ENT2 on the plasma membrane was disrupted. These data suggest that the disrupted localization of ENT2 is one of causes of the impaired uptake of gemcitabine, resulting in a gain of chemoresistance to gemcitabine.
Collapse
Affiliation(s)
- Ren Nishio
- Division of Molecular and Genetic Medicine, Graduate School of Medicine, Tottori University, Yonago, Japan
| | | | | | | | | | | | | | | |
Collapse
|
48
|
Hepatoma-derived growth factor promotes the resistance to anti-tumor effects of nordihydroguaiaretic acid in colorectal cancer cells. Eur J Pharmacol 2010; 645:55-62. [DOI: 10.1016/j.ejphar.2010.07.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2009] [Revised: 06/23/2010] [Accepted: 07/11/2010] [Indexed: 11/17/2022]
|
49
|
Gong G, Qin Y, Huang W, Zhou S, Wu X, Yang X, Zhao Y, Li D. Protective effects of diosgenin in the hyperlipidemic rat model and in human vascular endothelial cells against hydrogen peroxide-induced apoptosis. Chem Biol Interact 2010; 184:366-75. [DOI: 10.1016/j.cbi.2010.02.005] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2009] [Revised: 01/27/2010] [Accepted: 02/02/2010] [Indexed: 01/18/2023]
|
50
|
Gong G, Qin Y, Huang W, Zhou S, Yang X, Li D. Rutin inhibits hydrogen peroxide-induced apoptosis through regulating reactive oxygen species mediated mitochondrial dysfunction pathway in human umbilical vein endothelial cells. Eur J Pharmacol 2009; 628:27-35. [PMID: 19931526 DOI: 10.1016/j.ejphar.2009.11.028] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2009] [Revised: 11/05/2009] [Accepted: 11/05/2009] [Indexed: 02/05/2023]
Abstract
Apoptosis of human vein endothelium cell caused by reactive oxygen species is implicated in the pathogenesis of cardiovascular diseases. Rutin, an active flavonoid compound, is well known to possess potent antioxidant properties against oxidative stress insults through undefined mechanism(s). In this study, we first investigated the possible protective effects of rutin against apoptosis of human umbilical vein endothelial cells (HUVECs) induced by hydrogen peroxide (H(2)O(2)) and the associated signaling pathways. Decreased viability and increased apoptosis were observed in the HUVECs incubated with 200microM H(2)O(2) for 12h. By examining the effect of rutin on H(2)O(2)-induced apoptosis in HUVECs, we found that rutin pretreatment significantly attenuated H(2)O(2)-induced apoptosis in HUVECs. We next examined the signaling involved in rutin-mediated anti-apoptotic effects. It was found that rutin pretreatment attenuated excessive reactive oxygen species in HUVECs exposed to H(2)O(2). Rutin also prevented the increased DNA fragment formation and glutathione (GSH) depletion and inhibited the collapse of mitochondrial membrane potentials (DeltaPsim) that occurred in HUVECs exposed to H(2)O(2), which protected HUVECs against oxidative damage and the further mitochondrial membrane integrity impairment, leading to apoptosis. In conclusion, the results suggested that rutin (50microM) blocked apoptosis in HUVECs through decreasing reactive oxygen species, increasing GSH, restoring DeltaPsim and thus protecting DNA damage. Our research indicated that rutin protected the intracellular GSH antioxidant system and prevented H(2)O(2)-induced apoptosis of HUVECs through regulating reactive oxygen species mediated mitochondrial dysfunction pathway.
Collapse
Affiliation(s)
- Guohua Gong
- Institute for Nanobiomedical Technology and Membrane Biology, State Key Lab of Biotherapy of Human Diseases, Cancer Center, West China Hospital, West China Medical School, Sichuan University, Sichuan, PR China
| | | | | | | | | | | |
Collapse
|