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Zhang Y, Liu JQ, Wang XS. Copper(I)-catalyzed synthesis of isoindolo[1,2-b]quinazoline derivatives via an α-arylation under Pd and ligand free conditions. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Fenofibrate induces human hepatoma Hep3B cells apoptosis and necroptosis through inhibition of thioesterase domain of fatty acid synthase. Sci Rep 2019; 9:3306. [PMID: 30824767 PMCID: PMC6397239 DOI: 10.1038/s41598-019-39778-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 01/29/2019] [Indexed: 12/31/2022] Open
Abstract
This study demonstrated that fenofibrate, a lipid-lowering drug, induced a significant time-dependent cytotoxicity of hepatoma Hep3B cells. Hep3B cells are significantly more sensitive to cell killing by fenofibrate than hepatoma HepG2, lung cancer CH27 and oral cancer HSC-3 cells. From the result of docking simulation, fenofibrate can bind excellently to the thioesterase domain of fatty acid synthase (FASN) binding site as orlistat, a FASN inhibitor, acts. The fenofibrate-induced cell cytotoxicity was protected by addition of palmitate, indicating that the cytotoxic effect of fenofibrate is due to starvation of Hep3B cells by inhibiting the formation of end product in the FASN reaction. Inhibition of lipid metabolism-related proteins expression, such as proteins containing thioesterase domain and fatty acid transport proteins, was involved in the fenofibrate-induced Hep3B cell death. Fenofibrate caused S and G2/M cell cycle arrest by inducing cyclin A/Cdk2 and reducing cyclin D1 and E protein levels in Hep3B cells. The anti-tumor roles of fenofibrate on Hep3B cells by inducing apoptosis and necroptosis were dependent on the expression of Bcl-2/caspase family members and RIP1/RIP3 proteins, respectively. These results suggest that fenofibrate has an anti-cancer effect in Hep3B cells and inhibition of lipid metabolism may be involved in fenofibrate-induced Hep3B cells apoptosis and necroptosis.
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Zhang Y, Liu JQ, Wang XS. An efficient synthesis of 16H-dibenzo[2,3:6,7][1,4]oxazepino[5,4-b]quinazolin-16-ones via an Ullmann reaction catalyzed by CuI. Org Biomol Chem 2019; 16:1679-1685. [PMID: 29446417 DOI: 10.1039/c8ob00005k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
CuI functions as a mild Lewis acid catalyst to promote the condensation and cyclization reaction of 2-amino-N-(2-hydroxyphenyl)benzamide and 2-bromobenzaldehyde to build the quinazoline moiety first. With the addition of Cs2CO3, it also can catalyse the subsequent intramolecular Ullmann type reaction to give 16H-dibenzo[2,3:6,7][1,4]oxazepino[5,4-b]quinazolin-16-ones in good yields.
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Affiliation(s)
- Yan Zhang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou Jiangsu 221116, P. R. China.
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Lee MR, Lin C, Lu CC, Kuo SC, Tsao JW, Juan YN, Chiu HY, Lee FY, Yang JS, Tsai FJ. YC-1 induces G 0/G 1 phase arrest and mitochondria-dependent apoptosis in cisplatin-resistant human oral cancer CAR cells. Biomedicine (Taipei) 2017; 7:12. [PMID: 28612710 PMCID: PMC5479426 DOI: 10.1051/bmdcn/2017070205] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 05/02/2017] [Indexed: 12/15/2022] Open
Abstract
Oral cancer is a serious and fatal disease. Cisplatin is the first line of chemotherapeutic agent for oral cancer therapy. However, the development of drug resistance and severe side effects cause tremendous problems clinically. In this study, we investigated the pharmacologic mechanisms of YC-1 on cisplatin-resistant human oral cancer cell line, CAR. Our results indicated that YC-1 induced a concentration-dependent and time-dependent decrease in viability of CAR cells analyzed by MTT assay. Real-time image analysis of CAR cells by IncuCyte™ Kinetic Live Cell Imaging System demonstrated that YC-1 inhibited cell proliferation and reduced cell confluence in a time-dependent manner. Results from flow cytometric analysis revealed that YC-1 promoted G0/G1 phase arrest and provoked apoptosis in CAR cells. The effects of cell cycle arrest by YC-1 were further supported by up-regulation of p21 and down-regulation of cyclin A, D, E and CDK2 protein levels. TUNEL staining showed that YC-1 caused DNA fragmentation, a late stage feature of apoptosis. In addition, YC-1 increased the activities of caspase-9 and caspase-3, disrupted the mitochondrial membrane potential (AYm) and stimulated ROS production in CAR cells. The protein levels of cytochrome c, Bax and Bak were elevated while Bcl-2 protein expression was attenuated in YC-1-treated CAR cells. In summary, YC-1 suppressed the viability of cisplatin-resistant CAR cells through inhibiting cell proliferation, arresting cell cycle at G0/G1 phase and triggering mitochondria-mediated apoptosis. Our results provide evidences to support the potentially therapeutic application of YC-1 on fighting against drug resistant oral cancer in the future.
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Affiliation(s)
- Miau-Rong Lee
- Department of Biochemistry, China Medical University, Taichung 404, Taiwan
| | - Chingju Lin
- Department of Physiology, China Medical University, Taichung 404, Taiwan
| | - Chi-Cheng Lu
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan - Department of Pharmacy, Buddhist Tzu Chi General Hospital, Hualien 970, Taiwan
| | - Sheng-Chu Kuo
- Chinese Medicinal Research and Development Center, China Medical University Hospital, China Medical University, Taichung 404, Taiwan - School of Pharmacy, China Medical University, Taichung 404, Taiwan
| | - Je-Wei Tsao
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan
| | - Yu-Ning Juan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan
| | - Hong-Yi Chiu
- Department of Pharmacy, Buddhist Tzu Chi General Hospital, Hualien 970, Taiwan
| | - Fang-Yu Lee
- Yung-Shin Pharmaceutical Industry Co., Ltd., Tachia, Taichung 437, Taiwan
| | - Jai-Sing Yang
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan
| | - Fuu-Jen Tsai
- Genetics Center, Department of Medical Research, China Medical University Hospital, Taichung 404, Taiwan - School of Chinese Medicine, China Medical University, Taichung 404, Taiwan - Department of Medical Genetics, China Medical University Hospital, Taichung 404, Taiwan
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Gkouveris I, Nikitakis N, Karanikou M, Rassidakis G, Sklavounou A. JNK1/2 expression and modulation of STAT3 signaling in oral cancer. Oncol Lett 2016; 12:699-706. [PMID: 27347203 DOI: 10.3892/ol.2016.4614] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 04/22/2016] [Indexed: 01/24/2023] Open
Abstract
Mitogen-activated protein kinases (MAPKs) are a family of protein kinases that link extracellular stimuli with intracellular responses and participate in numerous cellular processes such as growth, proliferation, differentiation, inflammation and apoptosis. Persistent activation of signal transducer and activator of transcription 3 (STAT3), which is accompanied by increases in STAT3 tyrosine phosphorylation, is associated with cell proliferation, differentiation and apoptosis in oral squamous cell carcinoma (OSCC). The role and significance of the activation of MAPKs, particularly of c-Jun N-terminal kinase (JNK), on STAT3 signaling in OSCC have not been thoroughly investigated. The present study examines the effects of JNK1/2 modulation on STAT3 signaling and cellular activities in OSCC cells. The expression levels of STAT3 [total, tyrosine phosphorylated (p-Tyr) and serine phosphorylated (p-Ser)], JNK, c-Jun and cyclin D1 were assessed in the OSCC cell lines SCC25 and SCC9. Inhibition of JNK1/2 was achieved by pharmacological agents (SP600125) and by small interfering RNA (siRNA) silencing, while JNK1/2 was induced by active MAPK kinase 7. Cell proliferation and viability rates were also evaluated. Inhibition of JNK1/2 with either SP600125 treatment or specific siRNA silencing resulted in decreased levels of p-Ser STAT3 and increased levels of p-Tyr STAT3 and cyclin D1 in both cell lines. Furthermore, JNK1/2 inhibition resulted in a dose-dependent increase in cell growth and viability in both cell lines. Opposite results were observed with JNK1/2 induction in both cell lines. The present results are supportive of a potential tumor suppressive role of JNK1/2 signaling in OSCC, which may be mediated through negative crosstalk with the oncogenic STAT3 signaling pathway. The possible therapeutic implications of JNK1/2 inhibition for patients with OSCC require to be investigated.
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Affiliation(s)
- Ioannis Gkouveris
- Department of Oral Pathology and Medicine, Dental School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Nikolaos Nikitakis
- Department of Oral Pathology and Medicine, Dental School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Maria Karanikou
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - George Rassidakis
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Alexandra Sklavounou
- Department of Oral Pathology and Medicine, Dental School, National and Kapodistrian University of Athens, 11527 Athens, Greece
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Qiang WW, Zhang MM, Wang XS. Catalyst-free Synthesis of 5-Arylimidazo[1,2-c]quinazoline Derivatives in Ionic Liquids. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2613] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Wen-Wen Qiang
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials; Jiangsu Normal University; Xuzhou Jiangsu 221116 People's Republic of China
| | - Mei-Mei Zhang
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials; Jiangsu Normal University; Xuzhou Jiangsu 221116 People's Republic of China
| | - Xiang-Shan Wang
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials; Jiangsu Normal University; Xuzhou Jiangsu 221116 People's Republic of China
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Liu WT, Chen C, Lu IC, Kuo SC, Lee KH, Chen TL, Song TS, Lu YL, Gean PW, Hour MJ. MJ-66 induces malignant glioma cells G2/M phase arrest and mitotic catastrophe through regulation of cyclin B1/Cdk1 complex. Neuropharmacology 2014; 86:219-27. [PMID: 25107587 DOI: 10.1016/j.neuropharm.2014.07.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Revised: 07/12/2014] [Accepted: 07/24/2014] [Indexed: 02/06/2023]
Abstract
Malignant gliomas are among the most devastating cancers as they are resistant to many kinds of treatment. Despite recent advances in the diagnosis and treatment, the prognosis of patients remains very poor and the development of new drug is urgently needed. Here, we report that a synthetic quinazolinone analog 2-(naphthalene-1-yl)-6-pyrrolidinyl-4-quinazolinone (MJ-66) induced glioma cell death. Immunofluorescence staining showed that MJ-66-induced cell death was associated with multinucleated phenotype and multipolar spindles that were typical characteristics of mitotic catastrophe. Flow cytometry analysis revealed that MJ-66 caused glioma cell cycle arrest at G2/M phase and increased the proportion of polyploidy cells. Western blotting indicated that the expression of cyclin B1, Cdk1 pY15 and Cdk1 increased after treatment with MJ-66. MJ-66 effectively inhibited tumor growth and induced apoptosis in the xenograft animal model of U87 human glioma cells. Together, these results suggest that MJ-66 inhibited malignant gliomas growth through inducing mitotic catastrophe by interference with G2/M cell cycle checkpoint which may open a new avenue for the treatment of malignant gliomas.
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Affiliation(s)
- Wei-Ting Liu
- Department of Pharmacology, College of Medicine, National Cheng-Kung University, Tainan, Taiwan
| | - Ching Chen
- Department of Pharmacology, College of Medicine, National Cheng-Kung University, Tainan, Taiwan
| | - I-Chen Lu
- Department of Pharmacology, College of Medicine, National Cheng-Kung University, Tainan, Taiwan
| | - Sheng-Chu Kuo
- Graduate Institute of Pharmaceutical Chemistry, China Medical University, Taichung, Taiwan
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, NC 27599, USA; Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung, Taiwan
| | - Tai-Lin Chen
- School of Pharmacy, China Medical University, Taichung, Taiwan
| | - Ta-Shu Song
- School of Pharmacy, China Medical University, Taichung, Taiwan
| | - Yi-Liang Lu
- School of Pharmacy, China Medical University, Taichung, Taiwan
| | - Po-Wu Gean
- Department of Pharmacology, College of Medicine, National Cheng-Kung University, Tainan, Taiwan.
| | - Mann-Jen Hour
- School of Pharmacy, China Medical University, Taichung, Taiwan; China Medical University Hospital, Taichung, Taiwan.
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Khan I, Ibrar A, Abbas N, Saeed A. Recent advances in the structural library of functionalized quinazoline and quinazolinone scaffolds: Synthetic approaches and multifarious applications. Eur J Med Chem 2014; 76:193-244. [DOI: 10.1016/j.ejmech.2014.02.005] [Citation(s) in RCA: 264] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 02/04/2014] [Accepted: 02/06/2014] [Indexed: 01/14/2023]
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