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Chung CY, Li SM, Zeng WZ, Uramaru N, Huang GJ, Juang SH, Wong FF. Synthesis, design, and antiproliferative evaluation of 6-(N-Substituted-methyl)pyrazolo[3,4-d]pyrimidines as the potent anti-leukemia agents. Bioorg Chem 2024; 148:107424. [PMID: 38728908 DOI: 10.1016/j.bioorg.2024.107424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 05/01/2024] [Accepted: 05/02/2024] [Indexed: 05/12/2024]
Abstract
Pyrazolopyrimidine derivatives, including pyrazolopyrimidines, 6-aminopyrazolopyrimidines, 6-[(formyloxy)methyl]pyrazolopyrimidines, 6-(hydroxymethyl)pyrazolopyrimidine, and 6-(aminomethyl)pyrazolopyrimidines have been successfully prepared and tested against NCI-H226, NPC-TW01, and Jurkat cancer cell lines. Among the tested pyrazolopyrimidine compounds, we found 6-aminopyrazolopyrimidines and 6-(aminomethyl)pyrazolopyrimidines with essential o-ClPh or p-ClPh substituted moieties on N-1 pyrazole ring exhibited the best IC50 inhibition activity for Jurkat cells. Furthermore, optimization of the SAR study on the C-6 position of pyrazolopyrimidine ring demonstrated that 6-(N-substituted-methyl)pyrazolopyrimidines 17b, 17d, and 19d possessed the significant IC50 inhibitory activity for the different leukemia cell lines, especially for Jurkat, K-562, and HL-60. On the other hand, further SAR inhibition and docking model studies revealed that compound 19d, which has a 3-(1H-imidazol-1-yl)propan-1-amino side-chain on the C-6 position, was able to form four hydrogen bonds with residues Ala226, Leu152, and Glu194 and specifically extended into the P1 pocket subsite with Aurora A, resulting in improved inhibitory activity almost similar to SNS-314. To explore the anti-cancer mechanism, compound 19d was measured by Western blot analysis in Jurkat T-cells, however, it showed non-responsibility to Aurora B. For the further structural modifications on the lateral chain of compound 19d, compounds 24 with longer lateral chain were designed and synthesized for testing leukemia cell lines. However, compounds 24 was significantly decrease inhibition potency against leukemia cell lines. Based on the in-vitro results, compounds 17b and 19d could be considered to be the best potential lead drug in our study for the development of new and effective therapies for leukemia treatment. On the other hand, the DHFR inhibition results indicated compound 19d possessed good inhibitory activity and better than the reported naphthalene derivative. Through further comparisons of the model superposition of three-dimensional (3D) conformations in DHFR, compound 19d presented a similar structural alignment to Methotrexate and the reported naphthalene derivative and led to similar drug-like functional relationships. As a results, compound 19d would be a potential DHFR inhibitor for anti-leukemia drug candidate.
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Affiliation(s)
- Cheng-Yen Chung
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, No. 91 Hsueh-Shih Rd., Taichung 40402, Taiwan
| | - Sin-Min Li
- Institute of Translation Medicine and New Drug Development, China Medical University, No. 91 Hsueh-Shih Rd., Taichung 40402, Taiwan
| | - Wei-Zheng Zeng
- Institute of Nutrition, China Medical University, No. 100, Jingmao 1st Rd., Beitun Dist., Taichung 406040, Taiwan
| | - Naoto Uramaru
- Department of Environmental Science, Nihon Pharmaceutical University, Komuro Inamachi Kita-adachi-gun, Saitama-ken 10281, Japan
| | - Guan-Jhong Huang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, No. 91 Hsueh-Shih Rd., Taichung 40402, Taiwan; Department of Food Nutrition and Healthy Biotechnology, Asia University, No. 500, Lioufeng Rd., Wufeng, Taichung 41354, Taiwan
| | - Shin-Hun Juang
- School of Pharmacy, China Medical University, No. 100, Jingmao 1st Rd., Beitun Dist., Taichung 406040, Taiwan
| | - Fung Fuh Wong
- School of Pharmacy, China Medical University, No. 100, Jingmao 1st Rd., Beitun Dist., Taichung 406040, Taiwan.
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Dochi H, Kondo S, Murata T, Fukuyo M, Nanbo A, Wakae K, Jiang WP, Hamabe-Horiike T, Tanaka M, Nishiuchi T, Mizokami H, Moriyama-Kita M, Kobayashi E, Hirai N, Komori T, Ueno T, Nakanishi Y, Hatano M, Endo K, Sugimoto H, Wakisaka N, Juang SH, Muramatsu M, Kaneda A, Yoshizaki T. Estrogen induces the expression of EBV lytic protein ZEBRA, a marker of poor prognosis in nasopharyngeal carcinoma. Cancer Sci 2022; 113:2862-2877. [PMID: 35633182 PMCID: PMC9357606 DOI: 10.1111/cas.15440] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 05/11/2022] [Accepted: 05/20/2022] [Indexed: 11/29/2022] Open
Abstract
Several epidemiological studies have suggested that Epstein-Barr virus (EBV) lytic infection is essential for the development of nasopharyngeal carcinoma (NPC), as elevation of antibody titers against EBV lytic proteins is a common feature of NPC. Although ZEBRA protein is a key trigger for the initiation of lytic infection, whether its expression affects the prognosis and pathogenesis of NPC remains unclear. In this study, 64 NPC biopsy specimens were analyzed using immunohistochemistry. We found that ZEBRA was significantly associated with a worsening of progression-free survival in NPC (adjusted hazard ratio, 3.58; 95% confidence interval, 1.08-11.87; P = 0.037). Moreover, ZEBRA expression positively correlated with key endocrinological proteins, estrogen receptor α, and aromatase. The transcriptional level of ZEBRA is activated by estrogen in an estrogen receptor α-dependent manner, resulting in an increase in structural gene expression levels and extracellular virus DNA copy number in NPC cell lines, reminiscent of lytic infection. Interestingly, it did not suppress cellular proliferation or increase apoptosis, in contrast to cells treated with 12-O-tetradecanoylphorbol-13-acetate and sodium butyrate, indicating that viral production induced by estrogen is not a cell lytic phenomenon. Our results suggest that intratumoral estrogen overproduced by aromatase could induce ZEBRA expression and EBV reactivation, contributing to the progression of NPC.
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Affiliation(s)
- Hirotomo Dochi
- Division of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Satoru Kondo
- Division of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Takayuki Murata
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Masaki Fukuyo
- Department of Molecular Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Asuka Nanbo
- Department of Molecular and Cellular Virology, National Research Center for the Control and Prevention of Infectious Diseases, Nagasaki University, Nagasaki, Japan
| | - Kousho Wakae
- Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - Wen-Ping Jiang
- Department of Pharmacy, Chia Nan University of Pharmacy and Science, Tainan, Taiwan
| | - Toshihide Hamabe-Horiike
- Center for Biochemical Research and Education, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Mariko Tanaka
- Center for Biochemical Research and Education, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Takumi Nishiuchi
- Division of Integrated Omics research, Bioscience Core Facility, Research Center for Experimental Modeling of Human Disease, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Harue Mizokami
- Division of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Makiko Moriyama-Kita
- Division of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Eiji Kobayashi
- Division of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Nobuyuki Hirai
- Division of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Takeshi Komori
- Division of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Takayoshi Ueno
- Division of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Yosuke Nakanishi
- Division of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Miyako Hatano
- Division of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Kazuhira Endo
- Division of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Hisashi Sugimoto
- Division of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Naohiro Wakisaka
- Division of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Shin-Hun Juang
- School of Pharmacy, China Medical University, Taichung, Taiwan
| | - Masamichi Muramatsu
- Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - Atsushi Kaneda
- Department of Molecular Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Tomokazu Yoshizaki
- Division of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
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Juang SH, Hsieh MT, Hsu PL, Chen JL, Liu HK, Liang FP, Kuo SC, Chiu CY, Liu SH, Chou CH, Wu TS, Hung HY. Studies of Coumarin Derivatives for Constitutive Androstane Receptor (CAR) Activation. Molecules 2020; 26:molecules26010164. [PMID: 33396516 PMCID: PMC7796031 DOI: 10.3390/molecules26010164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/25/2020] [Accepted: 12/28/2020] [Indexed: 11/22/2022] Open
Abstract
Constitutive androstane receptor (CAR) activation has found to ameliorate diabetes in animal models. However, no CAR agonists are available clinically. Therefore, a safe and effective CAR activator would be an alternative option. In this study, sixty courmarin derivatives either synthesized or purified from Artemisia capillaris were screened for CAR activation activity. Chemical modifications were on position 5,6,7,8 with mono-, di-, tri-, or tetra-substitutions. Among all the compounds subjected for in vitro CAR activation screening, 6,7-diprenoxycoumarin was the most effective and was selected for further preclinical studies. Chemical modification on the 6 position and unsaturated chains were generally beneficial. Electron-withdrawn groups as well as long unsaturated chains were hazardous to the activity. Mechanism of action studies showed that CAR activation of 6,7-diprenoxycoumarin might be through the inhibition of EGFR signaling and upregulating PP2Ac methylation. To sum up, modification mimicking natural occurring coumarins shed light on CAR studies and the established screening system provides a rapid method for the discovery and development of CAR activators. In addition, one CAR activator, scoparone, did showed anti-diabetes effect in db/db mice without elevation of insulin levels.
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Affiliation(s)
- Shin-Hun Juang
- School of Pharmacy, China Medical University, Taichung 404, Taiwan; (S.-H.J.); (M.-T.H.); (P.-L.H.); (J.-L.C.); (F.-P.L.); (S.-C.K.)
| | - Min-Tsang Hsieh
- School of Pharmacy, China Medical University, Taichung 404, Taiwan; (S.-H.J.); (M.-T.H.); (P.-L.H.); (J.-L.C.); (F.-P.L.); (S.-C.K.)
- Chinese Medicine Research and Development Center, China Medical University Hospital, 2 Yude Road, Taichung 404, Taiwan
| | - Pei-Ling Hsu
- School of Pharmacy, China Medical University, Taichung 404, Taiwan; (S.-H.J.); (M.-T.H.); (P.-L.H.); (J.-L.C.); (F.-P.L.); (S.-C.K.)
| | - Ju-Ling Chen
- School of Pharmacy, China Medical University, Taichung 404, Taiwan; (S.-H.J.); (M.-T.H.); (P.-L.H.); (J.-L.C.); (F.-P.L.); (S.-C.K.)
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan; (C.-H.C.); (T.-S.W.)
| | - Hui-Kang Liu
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 112, Taiwan;
| | - Fong-Pin Liang
- School of Pharmacy, China Medical University, Taichung 404, Taiwan; (S.-H.J.); (M.-T.H.); (P.-L.H.); (J.-L.C.); (F.-P.L.); (S.-C.K.)
| | - Sheng-Chu Kuo
- School of Pharmacy, China Medical University, Taichung 404, Taiwan; (S.-H.J.); (M.-T.H.); (P.-L.H.); (J.-L.C.); (F.-P.L.); (S.-C.K.)
| | - Chen-Yuan Chiu
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei 100, Taiwan; (C.-Y.C.); (S.-H.L.)
| | - Shing-Hwa Liu
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei 100, Taiwan; (C.-Y.C.); (S.-H.L.)
| | - Chen-Hsi Chou
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan; (C.-H.C.); (T.-S.W.)
| | - Tian-Shung Wu
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan; (C.-H.C.); (T.-S.W.)
| | - Hsin-Yi Hung
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan; (C.-H.C.); (T.-S.W.)
- Correspondence: ; Tel.: +886-6-2353535 (ext. 6803)
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Chen KC, Juang SH, Lien JC. Identification of antiproliferative emodin analogues as inhibitors of epidermal growth factor receptor in cancer. Int J Mol Med 2019; 43:1281-1288. [PMID: 30664170 PMCID: PMC6365047 DOI: 10.3892/ijmm.2019.4066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 01/07/2019] [Indexed: 12/13/2022] Open
Abstract
A series of emodin analogues have been demonstrated to exhibit potent antiproliferative activity in three human epidermal growth factor receptor 2 (HER2)‑overexpressing cell lines. However, in docking simulations, not all of these emodin analogues docked into the HER2 protein binding site. As the epidermal growth factor receptor (EFGR) and HER2 proteins are members of the ErbB family, the present study aimed to determine whether these anthraquinone derivatives exhibit potent antitumour bioactivity due to their inhibition of EGFR protein. Two 2D quantitative structure‑activity relationship (QSAR) models, applied using multiple linear regression and a support vector machine, indicated seven representative molecular descriptors of anthraquinone derivatives associated with their antitumour activities. Molecular docking simulation indicated the possible docking poses of binding in the EGFR kinase domain. Two 3D‑QSAR models performed by comparative force field analysis and comparative similarity indices analysis indicated the favoured and disfavoured fields for four physicochemical parameters (steric and hydrophobic properties, and hydrogen bond donor and acceptor), which may further improve the antitumour properties. These results demonstrate the benefits of further investigations on the development of lead compounds with improved anticancer bioactivity.
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Affiliation(s)
- Kuan-Chung Chen
- School of Pharmacy, China Medical University, Taichung 40402
| | - Shin-Hun Juang
- Department of Pharmacy, Tajen University, Pingtung 90741
| | - Jin-Cherng Lien
- School of Pharmacy, China Medical University, Taichung 40402
- Department of Medical Research, Hospital of China Medical University, Taichung 40402, Taiwan, R.O.C
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5
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Chan YY, Wang CY, Hwang TL, Juang SH, Hung HY, Kuo PC, Chen PJ, Wu TS. The Constituents of the Stems of Cissus assamica and Their Bioactivities. Molecules 2018; 23:E2799. [PMID: 30373325 PMCID: PMC6278371 DOI: 10.3390/molecules23112799] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 10/23/2018] [Accepted: 10/26/2018] [Indexed: 11/20/2022] Open
Abstract
Fifty-five compounds were isolated from the fresh stems of Cissus assamica, including 14 benzenoids, 11 triterpenes, nine steroids, five tocopherols, five chlorophylls, four flavonoids, two benzoquinones, two tannins, and three other compounds. Their structures were constructed by 1D and 2D nuclear magnetic resonance (NMR) and mass spectral data, and were also identified by a comparison of their spectral data with those reported in the literature. Among these isolates, 1,2-bis-(5--tocopheryl) ethane (51) was reported for the first time from natural sources. Some purified compounds were examined for their anti-inflammatory and anticancer bioactivities. The results indicated that betulinic acid (16) exhibited strong inhibition of superoxide anion generation with IC50 value of 0.2 ± 0.1 μM, while betulinic acid (16) and pheophytin-a (47) inhibited elastase release with IC50 value of 2.7 ± 0.3 and 5.3 ± 1.0 μM, respectively. In addition, betulinic acid (16) and epi-glut-5(6)-en-ol (18) exhibited potential cytotoxicity to non-small-cell lung carcinoma (NCI-H226) and colon cancer (HCT-116) cell lines with IC50 values in the range of 1.6 to 9.1 μM.
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Affiliation(s)
- Yu-Yi Chan
- Department of Biotechnology, Southern Taiwan University of Science and Technology, Tainan 71005, Taiwan.
| | - Chiu-Yuan Wang
- Department of Biotechnology, Southern Taiwan University of Science and Technology, Tainan 71005, Taiwan.
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan.
- Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan.
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan.
| | - Shin-Hun Juang
- Department of Pharmacy, Tajen University, Pingtung 90741, Taiwan.
| | - Hsin-Yi Hung
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
| | - Ping-Chung Kuo
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
| | - Po-Jen Chen
- Department of Cosmetic Science, Providence University, Taichung 433, Taiwan.
| | - Tian-Shung Wu
- Department of Pharmacy, Tajen University, Pingtung 90741, Taiwan.
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
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Abstract
Phytochemical investigation of Fissistigma cupreonitens (Annonaceae) led to the isolation of 34 compounds. The chemical structures of all compounds were determined by spectroscopic methods. Among the isolates, compounds 20–27 and 31–34 were reported from this genus for the first time. From the results of the cytotoxicity assay against three human cancer cell lines (NCI-H226, NPC-TW01, and Jurkat E6–1), oxoaporphine compounds oxoxylopine (1), oxocrebanine (3), kuafumine (4) and lysicamine (5), and the flavonoid adunctin E (26) displayed significant cytotoxicity against NCI-H226 cell line, with IC50 values of 8.45, 8.10, 8.54, 12.83 and 12.00 μM, respectively, in comparison with the standard drug, cisplatin with IC50 of 13.37 μM.
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Affiliation(s)
- I-Hsiao Chen
- Department of Medical Laboratory Science, I Shou University, Kaohsiung 82445, Taiwan
| | - Ming-Yi Yang
- School of Pharmacy, China Medical University, Taichung 40402, Taiwan
| | - Shin-Hun Juang
- Department of Pharmacy and Master Program, Tajen University, Pingtung 90741, Taiwan
| | - Chia-Lin Lee
- Department of Cosmeceutics, China Medical University, Taichung 40402, Taiwan
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung 40447, Taiwan
| | - Tran-Dinh Thang
- Department of Chemistry, Vinh University, Vinh City, Vietnam
| | - Mohamed El-Shazly
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, Ain-Shams University, Organization of African Unity Street, Abassia, Cairo 11566, Egypt
- Department of Pharmaceutical Biology, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11432, Egypt
| | - Yu-Hsuan Lan
- School of Pharmacy, China Medical University, Taichung 40402, Taiwan
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Chang KM, Chen LC, Tzeng CC, Lu YH, Chen IL, Juang SH, Wang TC. Synthesis and antiproliferative evaluation of oxime, methyloxime, and amide-containing quinazolinones. J CHIN CHEM SOC-TAIP 2018. [DOI: 10.1002/jccs.201700463] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ken-Ming Chang
- Department of Pharmacy; Tajen University; Pingtung Taiwan
| | - Li-Chai Chen
- Department of Pharmacy; Tajen University; Pingtung Taiwan
- Clinical Pharmacy Division; ZuoYing Branch of Kaohsiung Armed Forces General Hospital; Kaohsiung Taiwan
| | - Cherng-Chyi Tzeng
- Department of Medicinal and Applied Chemistry, College of Life Science; Kaohsiung Medical University; Kaohsiung Taiwan
| | - Yao-Hua Lu
- Department of Pharmacy; Tajen University; Pingtung Taiwan
| | - I-Li Chen
- Department of Pharmacy; Tajen University; Pingtung Taiwan
| | - Shin-Hun Juang
- Department of Pharmacy; Tajen University; Pingtung Taiwan
- School of Pharmacy; China Medical University; Taichung Taiwan
| | - Tai-Chi Wang
- Department of Pharmacy; Tajen University; Pingtung Taiwan
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Wang SH, Liang CH, Liang FP, Ding HY, Lin SP, Huang GJ, Lin WC, Juang SH. The Inhibitory Mechanisms Study of 5,6,4'-Trihydroxy-7,3'-Dimethoxyflavone against the LPS-Induced Macrophage Inflammatory Responses through the Antioxidant Ability. Molecules 2016; 21:136. [PMID: 26805809 PMCID: PMC6274540 DOI: 10.3390/molecules21020136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 01/14/2016] [Accepted: 01/18/2016] [Indexed: 11/16/2022] Open
Abstract
The whole plant of Anisomeles ovata has been widely used in Taiwan for treating inflammation-related skin and liver diseases, however, the detailed pharmacology mechanisms have yet to be elucidated. In the present study, one of the major components, 5,6,4'-trihydroxy-7,3'-dimethoxyflavone (5-TDMF), was purified from a methanol extract of Anisomeles ovata. A pharmacological study of this compound suggests that 5-TDMF possesses potent free radical scavenging activity both in vitro and ex vivo. Furthermore, 5-TDMF reduces nitric oxide and pro-inflammatory cytokine production in LPC-treated RAW 264.7 cells through the attenuation of nitric oxide synthase and cyclooxygenase-2. Additional experiments suggest that of 5-TDMF interferes with nuclear factor-κB translocation and mitogen-activated protein kinase pathways. These results identify 5-TDMF as an anti-oxidant and anti-inflammatory compound, explain the pharmacologic function of Anisomeles ovata and suggest its great potential as a new anti-inflammatory remedy.
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Affiliation(s)
- Shih-Hao Wang
- School of Pharmacy, China Medical University, Taichung 404, Taiwan.
| | - Chia-Hua Liang
- Department of Cosmetic Science, Chia Nan University of Pharmacy and Science, Tainan 717, Taiwan.
| | - Fong-Pin Liang
- Department of Pharmacy, Tajen University, Pingtung 907, Taiwan.
| | - Hsiou-Yu Ding
- Institute of Cosmetic Science, Chia Nan University of Pharmacy and Science, Tainan 717, Taiwan.
| | - Shiuan-Pey Lin
- School of Pharmacy, China Medical University, Taichung 404, Taiwan.
| | - Guan-Jhong Huang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung 404, Taiwan.
| | - Wen-Chuan Lin
- School of Pharmacy, China Medical University, Taichung 404, Taiwan.
| | - Shin-Hun Juang
- Department of Pharmacy, Tajen University, Pingtung 907, Taiwan.
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Chiang CY, Wang TC, Lee CH, Chen CS, Wang SH, Lin YC, Juang SH. WTC-01, a novel synthetic oxime-flavone compound, destabilizes microtubules in human nasopharyngeal carcinoma cells in vitro and in vivo. Br J Pharmacol 2015; 172:4671-83. [PMID: 26102991 DOI: 10.1111/bph.13227] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 06/01/2015] [Accepted: 06/10/2015] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND AND PURPOSE Dynamic polymerization of microtubules is essential for cancer cell growth and metastasis, and microtubule-disrupting agents have become the most successful anti-cancer agents in clinical use. Besides their antioxidant properties, flavonoids also exhibit strong microtubule-disrupting activity and inhibit tumour growth. We have designed, synthesized and tested a series of oxime/amide-containing flavone derivatives. Here we report the evaluation of one compound, WTC-01 for its anti-proliferative effects in human cancer cells. EXPERIMENTAL APPROACH We used a range of cancer cell lines including two human nasopharyngeal carcinoma (NPC) cell lines, measuring proliferation, cell cycle and apoptosis, along with caspase levels and mitochondrial membrane potentials. Assays of tubulin polymerisation in vitro and computer modelling of the colchicine binding site in tubulin were also used. In mice, pharmacokinetics and growth of NPC-derived tumours were studied. KEY RESULTS WTC-01 was most potent against proliferation of NPC cells (IC50 = 0.45 μM), inducing accumulation of cells in G2 /M and increasing apoptosis, time- and concentration-dependently. The colchicine competition-binding experiments and computer modelling results suggested that WTC-01 causes microtubule disruption via binding to the colchicine-binding site of tubulin resulting in mitochondrial membrane damage and cell apoptosis via activation of caspase-9/-3 without noticeable activation of the caspase-8. Notably, our in vivo studies demonstrated that at doses of 25 and 50 mg·kg(-1) , WTC-01 exhibited good pharmacokinetic properties and completely inhibited the growth of NPC-TW01 cells in a xenograft nude mouse model. CONCLUSIONS AND IMPLICATIONS WTC-01, a new synthetic oxime-containing flavone, exhibited potent anti-tumour activity against NPC cells and merits further investigation.
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Affiliation(s)
| | - Tai-Chi Wang
- Department of Pharmacy, Tajen University, Pingtung, Taiwan
| | - Choa-Hsun Lee
- School of Pharmacy, China Medical University, Taichung, Taiwan
| | - Chien-Shu Chen
- School of Pharmacy, China Medical University, Taichung, Taiwan
| | - Shih-Hao Wang
- School of Pharmacy, China Medical University, Taichung, Taiwan
| | - Yu-Chin Lin
- School of Pharmacy, China Medical University, Taichung, Taiwan
| | - Shin-Hun Juang
- School of Pharmacy, China Medical University, Taichung, Taiwan.,Department of Pharmacy, Tajen University, Pingtung, Taiwan.,Department of Medical Research, China Medical University Hospital, Taichung, Taiwan.,Department of Pediatrics, Children's Hospital, China Medical University, Taichung, Taiwan
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10
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Chang KM, Liang FP, Chen IL, Yang SC, Juang SH, Wang TC, Chen YL, Tzeng CC. Discovery of oxime-bearing naphthalene derivatives as a novel structural type of Nrf2 activators. Bioorg Med Chem 2015; 23:3852-9. [PMID: 25907366 DOI: 10.1016/j.bmc.2015.03.046] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 03/16/2015] [Accepted: 03/17/2015] [Indexed: 12/01/2022]
Abstract
Recent studies have demonstrated that oxidative stress insult is one of major causes of tumor formation. Therefore, identify the effective anti-oxidative agents as a preventive approach to stop cancer progression has widely explored. Although, many potent anti-oxidative ingredients in the natural products have been identified but the amount from the nature source hindrances the clinical application. Compound which can activate Nrf2 signaling pathway result unregulated the cellular antioxidant-responses has been demonstrated as an effective chemopreventive approach for cancer treatment. In the present study, certain oxime-bearing naphthalene derivatives were synthesized and evaluated for their Nrf2 activation and anti-proliferative activities. Results indicated (E)-1-(naphthalen-2-yloxy)propan-2-one oxime (11) which increased 2.04-fold Nrf2/ARE-driven luciferase activity was more active than its 1-substituted isomer 10 (1.17-fold) and t-BHQ (1.77-fold), the known Nrf2 activator. The activities were further increased by the replacement of the peripheral methyl group with the phenyl ring in which (Z)-2-(naphthalen-2-yloxy)-1-phenylethanone oxime (13a) exhibited 3.49-fold potency of the positive control. It is worth to mention that compounds 11, 13a, and 13b which showed significant Nrf2 activation are non-cytotoxic to the tested cells with IC50>50μM. This observation strongly suggested that these compounds can be used for chemoprevention. Mechanism studies indicated that these compounds were capable of inducing the phosphorylation of Nrf2 protein at serine 40 which led to the activation of the Nrf2 transcriptional activity.
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Affiliation(s)
- Ken-Ming Chang
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Fong-Pin Liang
- School of Pharmacy, China Medical University, Taichung, Taiwan
| | - I-Li Chen
- Department of Pharmacy, Tajen University, Pingtung, Taiwan
| | - Shyh-Chyun Yang
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Shin-Hun Juang
- School of Pharmacy, China Medical University, Taichung, Taiwan; Department of Medical Research, China Medical University Hospital, Taichung, Taiwan; Department of Pediatrics, Children's Hospital, China Medical University, Taichung, Taiwan
| | - Tai-Chi Wang
- Department of Pharmacy, Tajen University, Pingtung, Taiwan
| | - Yeh-Long Chen
- Department of Medicinal and Applied Chemistry, College of Life Science, Kaohsiung Medical University, Kaohsiung, Taiwan; Research Center for Natural Products & Drug Development, Kaohsiung Medical University, Kaohsiung City 807, Taiwan
| | - Cherng-Chyi Tzeng
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Medicinal and Applied Chemistry, College of Life Science, Kaohsiung Medical University, Kaohsiung, Taiwan; Research Center for Natural Products & Drug Development, Kaohsiung Medical University, Kaohsiung City 807, Taiwan.
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11
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Liang FP, Lien JC, Wu YH, Chen CS, Juang SH. Em08red, a dual functional antiproliferative emodin analogue, is a downregulator of ErbB2 expression and inducer of intracellular oxidative stress. Drug Des Devel Ther 2015; 9:1499-510. [PMID: 25792810 PMCID: PMC4362900 DOI: 10.2147/dddt.s66647] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Expression of ErbB2 protein is inversely correlated with the prognosis in cancer patients. Consequently, strategies targeting ErbB2 remain an attractive option in treating several types of malignancies, including oral cancer. In addition, many studies have shown that emodin and emodin derivatives are able to inhibit growth of ErbB2-overexpressing tumor cells. In this study, a series of computer modeling-generated emodin analogues were synthesized and tested for their antiproliferative activity against oral cancer cell lines overexpressing ErbB2. Among these analogues, em08red (1,8-dihydroxy-9(10H)-anthracenone) demonstrated potent antiproliferative activity against all three tested ErbB2-overexpressing cell lines, ie, FaDu, HSC3, and OECM1. Treatment with em08red significantly downregulated activation of ErbB2 as well as the ErbB2 protein expression level in the tested cell lines and induced G2 arrest. Antiapoptosis protein (Bcl-xl and Bcl-2) expression levels were also downregulated, and active caspase-3 and caspase-9 was detected in cells after treatment with em08red. Moreover, treatment with em08red stimulated production of cytotoxic reactive oxygen species in treated cells, and this could be partially reversed by pretreatment with N-acetylcysteine. Overall, we demonstrated inhibition of ErbB2 function and induction of reactive oxygen species in tumor cells by em08red, which prevented proliferation of tumor cells and induced apoptotic cell death.
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Affiliation(s)
- Fong-Pin Liang
- Graduate Institute of Pharmaceutical Chemistry, China Medical University Hospital, Taichung, Taiwan
| | - Jin-Cherng Lien
- Graduate Institute of Pharmaceutical Chemistry, China Medical University Hospital, Taichung, Taiwan
| | - Yu-Hua Wu
- School of Pharmacy and Department of Pediatrics, Children's Hospital, China Medical University Hospital, Taichung, Taiwan
| | - Chien-Shu Chen
- School of Pharmacy and Department of Pediatrics, Children's Hospital, China Medical University Hospital, Taichung, Taiwan
| | - Shin-Hun Juang
- Graduate Institute of Pharmaceutical Chemistry, China Medical University Hospital, Taichung, Taiwan ; School of Pharmacy and Department of Pediatrics, Children's Hospital, China Medical University Hospital, Taichung, Taiwan ; Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
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12
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Huang CY, Huang SP, Lin VC, Yu CC, Chang TY, Juang SH, Bao BY. Genetic variants in the Hippo pathway predict biochemical recurrence after radical prostatectomy for localized prostate cancer. Sci Rep 2015; 5:8556. [PMID: 25707771 PMCID: PMC4338420 DOI: 10.1038/srep08556] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 01/26/2015] [Indexed: 01/19/2023] Open
Abstract
While localized prostate cancer is potentially curative, many patients still show biochemical recurrence (BCR) after curative treatments such as radical prostatectomy (RP). The Hippo pathway has recently been shown to be an evolutionarily conserved regulator of tissue growth, and its perturbation can trigger tumorigenesis. We hypothesize that genetic variants of the Hippo pathway may influence clinical outcomes in localized prostate cancer patients. We genotyped 53 tagging single-nucleotide polymorphisms (SNPs) from seven core Hippo pathway genes in 246 localized prostate cancer patients treated with RP. Kaplan-Meier analysis and Cox proportional hazard models were utilized to identify significant SNPs that correlated with BCR. For replication, five associated SNPs were genotyped in an independent cohort of 212 patients. After adjusting for known clinicopathologic factors, the association between STK3 rs7827435 and BCR (P = 0.018) was replicated in the second stage (P = 0.026; Pcombined = 0.001). Additional integrated in silico analysis provided evidence that rs7827435 affects STK3 expression, which in turn is significantly correlated with tumor aggressiveness and patient prognosis. In conclusion, genetic variants of the Hippo pathway contribute to the variable outcomes of prostate cancer, and the discovery of these biomarkers provides a molecular approach for prognostic risk assessment.
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Affiliation(s)
- Chao-Yuan Huang
- Department of Urology, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Shu-Pin Huang
- 1] Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan [2] Department of Urology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Victor C Lin
- 1] Department of Urology, E-Da Hospital, Kaohsiung, Taiwan [2] School of Medicine for International Students, I-Shou University, Kaohsiung, Taiwan
| | - Chia-Cheng Yu
- 1] Division of Urology, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan [2] Department of Urology, School of Medicine, National Yang-Ming University, Taipei, Taiwan [3] Department of Pharmacy, Tajen University, Pingtung, Taiwan
| | - Ta-Yuan Chang
- Department of Occupational Safety and Health, China Medical University, Taichung, Taiwan
| | - Shin-Hun Juang
- Department of Pharmacy, China Medical University, Taichung, Taiwan
| | - Bo-Ying Bao
- 1] Department of Pharmacy, China Medical University, Taichung, Taiwan [2] Sex Hormone Research Center, China Medical University Hospital, Taichung, Taiwan [3] Department of Nursing, Asia University, Taichung, Taiwan
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13
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Chao CH, Juang SH, Chan HH, Shen DY, Liao YR, Shih HC, Huang CH, Cheng JC, Chen FA, Hung HY, Wu TS. UV-guided isolation of polyynes and polyenes from the roots of Codonopsis pilosula. RSC Adv 2015. [DOI: 10.1039/c5ra02765a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
UV-guided isolation of polyacetylenes from Codonopsis pilosula has successfully led to the characterization of new polyynes and polyenes. The HCVcc infection assay was used to evaluate the anti-HCV activity of compounds 1–12.
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14
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Abstract
A new polyketide, TMC-151 A monoacetate (1), along with a known analogue, TMC-151 F (2), was isolated from ethyl acetate extracts of the fermentation broth of Bionectria ochroleuca isolated in Taiwan. Their structures were elucidated on the basis of spectroscopic analysis. The antiproliferative activities of 1 and 2 were evaluated against MT-2 (human leukemia), A498 (human renal carcinoma), NPC-tw01 (human nasopharyngeal carcinoma), H-226 and A549 (non-small cell lung cancer) cell lines, and their IC50 values ranged from 18.3 to 40.2 μM.
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Affiliation(s)
- Yu-Ming Jua
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan 115
| | - Shin-Hun Juang
- Department of Medical Research, China Medical University Hospital, Taichung, Taiwan 404
| | - Ke-Jun Chen
- Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, Taiwan 110
| | - Tzong-Huei Lee
- Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, Taiwan 110
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15
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Shen DY, Chan YY, Hwang TL, Juang SH, Huang SC, Kuo PC, Thang TD, Lee EJ, Damu AG, Wu TS. Constituents of the roots of Clausena lansium and their potential anti-inflammatory activity. J Nat Prod 2014; 77:1215-1223. [PMID: 24798144 DOI: 10.1021/np500088u] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Eight new carbazole alkaloids, claulamines C (1), D (2), and E (5) and clausenalines B-F (3, 4, 6-8), four new coumarins, clausemarins A-D (9-12), and 43 known compounds were isolated from the roots of Clausena lansium. The structures of the new compounds were established on the basis of 2D-NMR spectroscopic analysis, and their absolute configurations were established from their ECD spectra. The configuration of wampetin was revised as E using a NOESY experiment. Most of the isolated compounds were evaluated for their potential anti-inflammatory activity. The results showed that compounds 9, 13-18, and 20-22 exhibited strong inhibition of superoxide anion generation with IC50 values ranging from 1.9 to 8.4 μM, while compounds 18, 19, and 21 inhibited elastase release with IC50 values in the range from 2.0 to 6.9 μM.
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Affiliation(s)
- De-Yang Shen
- Department of Chemistry, National Cheng Kung University , Tainan 70101, Taiwan
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16
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Lin YC, Yu CP, Lin SP, Hsu PW, Chao PDL, Hou YC, Juang SH. Potential modulation on BCRP and MRP 4 by onion: in vivo and ex-vivo studies. J Funct Foods 2014. [DOI: 10.1016/j.jff.2014.03.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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17
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Huang SP, Lévesque E, Guillemette C, Yu CC, Huang CY, Lin VC, Chung IC, Chen LC, Laverdière I, Lacombe L, Fradet Y, Chang TY, Lee HZ, Juang SH, Bao BY. Genetic variants in microRNAs and microRNA target sites predict biochemical recurrence after radical prostatectomy in localized prostate cancer. Int J Cancer 2014; 135:2661-7. [PMID: 24740842 DOI: 10.1002/ijc.28904] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 03/12/2014] [Accepted: 04/02/2014] [Indexed: 12/21/2022]
Abstract
Recent evidence indicates that microRNAs might participate in prostate cancer initiation, progression and treatment response. Germline variations in microRNAs might alter target gene expression and modify the efficacy of prostate cancer therapy. To determine whether genetic variants in microRNAs and microRNA target sites are associated with the risk of biochemical recurrence (BCR) after radical prostatectomy (RP). We retrospectively studied two independent cohorts composed of 320 Asian and 526 Caucasian men with pathologically organ-confined prostate cancer who had a median follow-up of 54.7 and 88.8 months after RP, respectively. Patients were systematically genotyped for 64 single-nucleotide polymorphisms (SNPs) in microRNAs and microRNA target sites, and their prognostic significance on BCR was assessed by Kaplan-Meier analysis and Cox regression model. After adjusting for known clinicopathologic risk factors, two SNPs (MIR605 rs2043556 and CDON rs3737336) remained associated with BCR. The numbers of risk alleles showed a cumulative effect on BCR [perallele hazard ratio (HR) 1.60, 95% confidence interval (CI) 1.16-2.21, p for trend = 0.005] in Asian cohort, and the risk was replicated in Caucasian cohort (HR 1.55, 95% CI 1.15-2.08, p for trend = 0.004) and in combined analysis (HR 1.57, 95% CI 1.26-1.96, p for trend <0.001). Results warrant replication in larger cohorts. This is the first study demonstrating that SNPs in microRNAs and microRNA target sites can be predictive biomarkers for BCR after RP.
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Affiliation(s)
- Shu-Pin Huang
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Urology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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18
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Chen LC, Juang SH, Chang KM, Tzeng CC, Chen JJ, Chen IL, Wang TC. Synthesis and Antiproliferative Evaluation of Amide-Containing Anthraquinone, Xanthone, and Carbazole. Chem Pharm Bull (Tokyo) 2014; 62:106-11. [DOI: 10.1248/cpb.c13-00617] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Li-Chai Chen
- Clinical Pharmacy Division, ZuoYing Branch of Kaohsiung Armed Forces General Hospital
| | - Shin-Hun Juang
- Graduate Institute of Pharmaceutical Chemistry, China Medical University
- Department of Medical Research, China Medical University Hospital
| | - Ken-Ming Chang
- Department of Medicinal and Applied Chemistry, College of Life Science, Kaohsiung Medical University
| | - Cherng-Chyi Tzeng
- Department of Medicinal and Applied Chemistry, College of Life Science, Kaohsiung Medical University
| | | | - I-Li Chen
- Department of Pharmacy, Tajen University
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19
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Shia CS, Juang SH, Tsai SY, Lee Chao PD, Hou YC. Interaction of Rhubarb and Methotrexate in Rats: In Vivo and Ex Vivo Approaches. Am J Chin Med 2013; 41:1427-38. [PMID: 24228610 DOI: 10.1142/s0192415x1350095x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Rhubarb, the rhizome of Rheum palmatum L. (RP), is a popular herb used in Chinese medicine prescriptions. RP contains a variety of polyphenolic anthraquinones, such as aloe-emodin, rhein, emodin and chrysophanol. Our previous study found that the anthraquinones in RP existed predominantly as glucuronides/sulfates in the bloodstream, which were putative substrates of MRPs. Methotrexate (MTX) is a widely used immunosuppressant and anticancer agent, but it has a narrow therapeutic index. The transcellular transport of MTX is mediated by multidrug resistance associated proteins (MRPs). This study investigated the effects of coadministration of RP on MTX pharmacokinetics in rats. The possible involvement of MRP 2 was verified by using cell models and various typical MRP 2 substrates. The results showed that coadministration of 0.5 mg/kg of RP significantly increased the AUC 0-t and MRT of MTX by 307% and 364%, and 1.0 g/kg of RP significantly increased the AUC 0-t and MRT of MTX by 602% and 419%, respectively. Cell line studies indicated that the activity of MRP 2 was inhibited by the metabolites of RP and rhein. In conclusion, concomitant administration of RP markedly increased the systemic exposure of MTX via inhibiting MRP 2-mediated excretion.
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Affiliation(s)
- Chi-Sheng Shia
- School of Pharmacy, China Medical University, Taichung, Taiwan
- Department of Pharmacy, China Medical University Hospital, Taichung, Taiwan
| | - Shin-Hun Juang
- School of Pharmacy, China Medical University, Taichung, Taiwan
- Graduate Institute of Pharmaceutical Chemistry, China Medical University, Taichung, Taiwan
| | - Shang-Yuan Tsai
- School of Pharmacy, China Medical University, Taichung, Taiwan
- Department of Pharmacy, China Medical University Hospital, Taichung, Taiwan
| | | | - Yu-Chi Hou
- School of Pharmacy, China Medical University, Taichung, Taiwan
- Department of Pharmacy, China Medical University Hospital, Taichung, Taiwan
- Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
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20
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Huang SP, Lin VC, Lee YC, Yu CC, Huang CY, Chang TY, Lee HZ, Juang SH, Lu TL, Bao BY. Genetic variants in nuclear factor-kappa B binding sites are associated with clinical outcomes in prostate cancer patients. Eur J Cancer 2013; 49:3729-37. [DOI: 10.1016/j.ejca.2013.07.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Revised: 06/26/2013] [Accepted: 07/15/2013] [Indexed: 11/16/2022]
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21
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22
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Hsu PW, Shia CS, Lin SP, Chao PDL, Juang SH, Hou YC. Potential risk of mulberry-drug interaction: modulation on P-glycoprotein and cytochrome P450 3A. J Agric Food Chem 2013; 61:4464-4469. [PMID: 23590720 DOI: 10.1021/jf3052384] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Mulberry is a fruit containing polyphenol antioxidants. Cyclosporine (CSP), a potent immunosuppressant with a narrow therapeutic range, is widely used in transplant patients. This study investigated the effect of co-administration of mulberry on the bioavailability of CSP, a probe drug of P-glycoprotein (P-gp)/cytochrome P450 3A4 (CYP 3A4), in rats and relevant mechanisms. CSP (2.5 mg/kg) was orally administered with and without a single dose or the seventh dose of mulberry (2 g/kg) to rats. The results showed that a single dose of mulberry significantly decreased the area under the curve of concentration (AUC(0-540)) and the maximum blood concentration (Cmax) of CSP by 53.2 and 65.8%, respectively. Repeated dosing of mulberry significantly decreased the AUC(0-540) and Cmax of CSP by 23.7 and 39.7%, respectively. Mechanism studies indicated that mulberry significantly increased the activities of P-gp and CYP 3A. In conclusion, mulberry significantly reduced the bioavailability of CSP through activating the functions of P-gp and CYP 3A.
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Affiliation(s)
- Pei-Wen Hsu
- School of Pharmacy, China Medical University, Taichung 404, Taiwan, Republic of China
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23
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Chen IL, Chen JJ, Lin YC, Peng CT, Juang SH, Wang TC. Synthesis and antiproliferative activities of N-(naphthalen-2-yl)acetamide and N-(substituted phenyl)acetamide bearing quinolin-2(1H)-one and 3,4-dihydroquinolin-2(1H)-one derivatives. Eur J Med Chem 2013; 59:227-34. [DOI: 10.1016/j.ejmech.2012.11.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 11/08/2012] [Accepted: 11/12/2012] [Indexed: 10/27/2022]
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24
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Shen DY, Juang SH, Kuo PC, Huang GJ, Chan YY, Damu AG, Wu TS. Chemical constituents from Andrographis echioides and their anti-inflammatory activity. Int J Mol Sci 2012; 14:496-514. [PMID: 23271366 PMCID: PMC3565277 DOI: 10.3390/ijms14010496] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 12/11/2012] [Accepted: 12/17/2012] [Indexed: 11/16/2022] Open
Abstract
Phytochemical investigation of the whole plants of Andrographis echioides afforded two new 2'-oxygenated flavonoids (1) and (2), two new phenyl glycosides (3) and (4), along with 37 known structures. The structures of new compounds were elucidated by spectral analysis and chemical transformation studies. Among the isolated compounds, (1-2) and (6-19) were subjected into the examination for their iNOS inhibitory bioactivity. The structure-activity relationships of the flavonoids for their inhibition of NO production were also discussed.
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Affiliation(s)
- De-Yang Shen
- Department of Chemistry, National Cheng Kung University, Tainan 70101, Taiwan; E-Mail: (D.-Y.S.); (A.G.D.)
| | - Shin-Hun Juang
- Graduate Institute of Pharmaceutical Chemistry, China Medical University, No. 91, Hsueh-Shih Road, Taichung 40402, Taiwan; E-Mail:
| | - Ping-Chung Kuo
- Department of Biotechnology, National Formosa University, Yunlin 632, Taiwan; E-Mail:
| | - Guan-Jhong Huang
- Department of Pharmacy, China Medical University, Taichung 40402, Taiwan; E-Mail:
| | - Yu-Yi Chan
- Department of Biotechnology, Southern Taiwan University of Science and Technology, Tainan 71005, Taiwan; E-Mail:
| | - Amooru G. Damu
- Department of Chemistry, National Cheng Kung University, Tainan 70101, Taiwan; E-Mail: (D.-Y.S.); (A.G.D.)
| | - Tian-Shung Wu
- Department of Chemistry, National Cheng Kung University, Tainan 70101, Taiwan; E-Mail: (D.-Y.S.); (A.G.D.)
- Department of Pharmacy, China Medical University, Taichung 40402, Taiwan; E-Mail:
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung 40402, Taiwan
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +886-6-2757575 (ext. 65333); Fax: +886-6-2740552
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25
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Yang SY, Juang SH, Tsai SY, Chao PDL, Hou YC. St. John's wort significantly increased the systemic exposure and toxicity of methotrexate in rats. Toxicol Appl Pharmacol 2012; 263:39-43. [DOI: 10.1016/j.taap.2012.05.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Revised: 05/09/2012] [Accepted: 05/29/2012] [Indexed: 12/01/2022]
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26
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Chiou CT, Kuo YH, Chan YY, Juang SH, Chan HH, Wu TS. Ajugalide-B (ATMA) is an anoikis-inducing agent from Ajuga taiwanensis with antiproliferative activity against tumor cells in vitro. Phytochemistry 2012; 80:64-69. [PMID: 22633845 DOI: 10.1016/j.phytochem.2012.05.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Revised: 02/26/2012] [Accepted: 05/01/2012] [Indexed: 06/01/2023]
Abstract
Ajuga taiwanensis is widely used for the treatment of hepatitis and hepatoma in Taiwanese folk medicine. However, its bioactive components and mechanism of action are unclear. Herein, ajugalide-B (ATMA), a neoclerodane diterpenoid isolated from Ajuga taiwanensis, is reported to exhibit high anti-proliferative activity against tumor cell lines from various tissues. These results demonstrate that ATMA disrupts the focal adhesion complex by decreasing phosphorylation of paxillin and focal adhesion kinase (FAK). As a result, anoikis, a specific type of apoptosis caused by detachment of cells, is triggered by activation of caspase-8 in A549 cells. Furthermore, ATMA also blocks anchorage-independent growth and cell migration and, therefore, ATMA may serve as a lead compound for the developing of anti-cancer therapeuties with anoikis-inducing properties.
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Affiliation(s)
- Chun-Tang Chiou
- Division of Herbal Medicine and Natural Product, National Research Institute of Chinese Medicine, Taipei 112, Taiwan, Republic of China
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Chan HH, Juang SH, Thang TD, Chen MY, Kuo PC, Yang ML, Ngan NT, Linh NN, Wu TS. Drimane-type sesquiterpenes with a dioxabicyclooctane skeleton from the fruiting bodies of Nigrofomes melanoporus and their cytotoxicity. Planta Med 2012; 78:737-739. [PMID: 22437245 DOI: 10.1055/s-0031-1298367] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Two new drimane-type compounds, nigrofomins A ( 1) and B ( 2), possessing a rare dioxabicyclooctane moiety, were purified from the fruiting bodies of Nigrofomes melanoporus. Their structures were determined using 1D-, 2D-NMR and HR-ESI-MS spectroscopic analyses. In addition, 1 was established by X-ray crystallographic studies. Both nigrofomins A ( 1) and B ( 2) exhibited cytotoxicity on acute T-cell leukemia (Jurkat), human nasopharyngeal carcinoma (NPC-TW01), and lung cancer (NCI-H661) cells with IC (50) values in the range of 99.44-246.32 µM. Furthermore, the effects of 1 and 2 on cell-cycle progression of Jurkat cells displayed a concentration-dependent accumulation in the G (0)/G (1) phase.
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Affiliation(s)
- Hsiu-Hui Chan
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan
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Pao JB, Yang YP, Huang CN, Huang SP, Hour TC, Chang TY, Lan YH, Lu TL, Lee HZ, Juang SH, Huang CY, Bao BY. Vitamin D receptor gene variants and clinical outcomes after androgen-deprivation therapy for prostate cancer. World J Urol 2011; 31:281-7. [PMID: 22193519 DOI: 10.1007/s00345-011-0813-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Accepted: 12/12/2011] [Indexed: 10/14/2022] Open
Abstract
PURPOSE Molecular epidemiology studies have shown that vitamin D receptor (VDR) gene polymorphisms are associated with prostate cancer risk. However, the prognostic value of these polymorphisms on clinical outcomes in prostate cancer patients receiving androgen-deprivation therapy (ADT) has not been determined. METHODS We evaluated the association of five common VDR polymorphisms, ApaI, Tru9I, BsmI, FokI, and Cdx2, with clinicopathologic characteristics and clinical outcomes, including disease progression, prostate cancer-specific mortality, and all-cause mortality, in a cohort of 601 prostate cancer patients treated with ADT. RESULTS Of the five VDR polymorphisms, FokI rs2228570 and BsmI rs1544410 were associated with Gleason score at diagnosis (P = 0.043) and prostate-specific antigen nadir following ADT (P = 0.023), respectively. The haplotype analysis revealed that the A-A-G (ApaI-Tru9I-BsmI) compared with C-G-G individuals were more likely to have high Gleason score (P = 0.050). However, none of these polymorphisms were significantly associated with disease progression and mortality after ADT. CONCLUSIONS This is the largest study to date investigating the association of VDR polymorphisms and clinical outcomes in prostate cancer patients receiving ADT. Polymorphisms in the VDR gene might be associated with Gleason score, but these polymorphisms had no main effect on predicting response to ADT.
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Affiliation(s)
- Jiunn-Bey Pao
- Department of Pharmacy, Yangming Branch, Taipei City Hospital, Taipei, Taiwan
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Wen KS, Lin HY, Huang YY, Kaneko K, Takayama H, Kimura M, Juang SH, Wong FF. Chemoselective synthesis, antiproliferative activities, and SAR study of 1H-pyrazol-5-yl-N,N-dimethylformamidines and pyrazolyl-2-azadienes. Med Chem Res 2011. [DOI: 10.1007/s00044-011-9872-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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30
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Wang LY, Tseng WC, Wu TS, Kaneko K, Takayama H, Kimura M, Yang WC, Wu JB, Juang SH, Wong FF. Synthesis and antiproliferative evaluation of 3,5-disubstituted 1,2,4-triazoles containing flurophenyl and trifluoromethanephenyl moieties. Bioorg Med Chem Lett 2011; 21:5358-62. [DOI: 10.1016/j.bmcl.2011.07.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Revised: 07/04/2011] [Accepted: 07/06/2011] [Indexed: 10/18/2022]
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Shia CS, Hou YC, Juang SH, Tsai SY, Hsieh PH, Ho LC, Chao PDL. Metabolism and pharmacokinetics of san-huang-xie-xin-tang, a polyphenol-rich chinese medicine formula, in rats and ex-vivo antioxidant activity. Evid Based Complement Alternat Med 2011; 2011:721293. [PMID: 19737807 PMCID: PMC3137274 DOI: 10.1093/ecam/nep124] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2009] [Accepted: 06/25/2009] [Indexed: 01/12/2023]
Abstract
San-Huang-Xie-Xin-Tang (SHXXT), a widely used Chinese herbal formula, consists of rhizomes of Rheum officinale, roots of Scutellaria baicalensis and rhizomes of Coptis chinesis. This study investigated the metabolism and pharmacokinetics of polyphenols in SHXXT, including baicalin, baicalein, wogonin, emodin, aloe-emodin, rhein and chrysophanol. The quantitation methods of SHXXT decoction and rat serum using high performance liquid chromatography were developed and validated in this study. After oral administration of SHXXT decoction to rats, the parent forms of various constituents and their conjugated metabolites in serum were determined before and after hydrolysis with β-glucuronidase and sulfatase. The results showed that only free form of rhein can be quantitated, whereas the parent forms of coptisine, palmatine, berberine, baicalein, wogonin, emodin, aloe-emodin and chrysophanol were not detected in serum. The glucuronides of baicalein, wogonin, emodin, aloe-emodin, rhein and chrysophanol were the predominant forms in bloodstream. In order to evaluate the in vivo antioxidant activity of SHXXT, the serum metabolite of SHXXT was prepared, characterized and followed by evaluation of the effect on AAPH-induced hemolysis. The results indicated that metabolites of SHXXT exhibited significant free radical scavenging activity. We suggest that biologists redirect their focus to the bioactivity of the conjugated metabolites of these polyphenols.
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Shia CS, Suresh G, Hou YC, Lin YC, Chao PDL, Juang SH. Suppression on metastasis by rhubarb through modulation on MMP-2 and uPA in human A549 lung adenocarcinoma: an ex vivo approach. J Ethnopharmacol 2011; 133:426-433. [PMID: 20970489 DOI: 10.1016/j.jep.2010.10.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Revised: 09/21/2010] [Accepted: 10/07/2010] [Indexed: 05/27/2023]
Abstract
AIM OF THE STUDY The aim of this study is to determine and identify the possible molecular mechanisms of anti-cancer effect of rhubarb under the physiologically achievable concentrations by using an ex vivo approach. MATERIALS AND METHODS Rats were orally administered rhubarb decoction and then serum metabolites were extracted, prepared and characterized to assay for the following in vitro study. The MTT assay, zymography analysis, wound healing assay, RT-PCR, and Western blot analysis were used to reveal molecular events of rhubarb metabolites in this study. Experimental metastasis model was used to investigate the in vivo anti-metastatic efficacy of rhubarb. RESULTS Our results demonstrated that cell line mobility was strongly inhibited and the enzymatic activity of MMP-2 decreased following culture with the rhubarb serum metabolite in human lung adenocarcinoma A549 cells. Further experiments demonstrated that the downregulation of MMP-2 enzymatic activity act through both transcriptional and post-translational mechanisms. NF-κB/c-Jun and uPA were observed involving in the inhibition of MMP-2 transcription and post-translational modification, respectively, in A549 cells treated with rhubarb serum metabolite. Further animal experiments demonstrated a significant reduction in lung metastatic colonies in rhubarb-treated mice, suggesting that rhubarb contain enriched active components that block cancer metastasis. CONCLUSIONS Our studies, both in vitro and in vivo, clearly demonstrated the anti-tumor effect of rhubarb in an experimental setting of achievable physiological concentrations and also provide possible molecular mechanisms of anti-metastatic mechanisms by rhubarb treatment.
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MESH Headings
- Adenocarcinoma/drug therapy
- Adenocarcinoma/metabolism
- Adenocarcinoma/secondary
- Administration, Oral
- Animals
- Antineoplastic Agents, Phytogenic/administration & dosage
- Antineoplastic Agents, Phytogenic/isolation & purification
- Antineoplastic Agents, Phytogenic/pharmacology
- Base Sequence
- Cell Line, Tumor
- Cell Movement/drug effects
- DNA Primers/genetics
- Down-Regulation/drug effects
- Ethnopharmacology
- Humans
- In Vitro Techniques
- JNK Mitogen-Activated Protein Kinases/metabolism
- Lung Neoplasms/drug therapy
- Lung Neoplasms/metabolism
- Male
- Matrix Metalloproteinase 2/genetics
- Matrix Metalloproteinase 2/metabolism
- Medicine, Chinese Traditional
- Mice
- Mice, Inbred NOD
- Mice, SCID
- NF-kappa B/metabolism
- Phytotherapy
- Plant Extracts/administration & dosage
- Plant Extracts/pharmacology
- Plants, Medicinal/chemistry
- Rats
- Rats, Sprague-Dawley
- Rheum/chemistry
- Taiwan
- Urokinase-Type Plasminogen Activator/metabolism
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Affiliation(s)
- Chi-Sheng Shia
- School of Pharmacy, China Medical University, Taichung 404, Taiwan
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Bao BY, Pao JB, Huang CN, Pu YS, Chang TY, Lan YH, Lu TL, Lee HZ, Juang SH, Chen LM, Hsieh CJ, Huang SP. Polymorphisms inside microRNAs and microRNA target sites predict clinical outcomes in prostate cancer patients receiving androgen-deprivation therapy. Clin Cancer Res 2010; 17:928-36. [PMID: 21149617 DOI: 10.1158/1078-0432.ccr-10-2648] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Recent evidence indicates that small noncoding RNA molecules, known as microRNAs (miRNAs), are involved in cancer initiation and progression. We hypothesized that genetic variations in miRNAs and miRNA target sites could be associated with the efficacy of androgen-deprivation therapy (ADT) in men with prostate cancer. EXPERIMENTAL DESIGN We systematically evaluated 61 common single nucleotide polymorphisms (SNPs) inside miRNAs and miRNA target sites in a cohort of 601 men with advanced prostate cancer treated with ADT. The prognostic significance of these SNPs on disease progression, prostate cancer-specific mortality (PCSM) and all-cause mortality (ACM) after ADT were assessed by Kaplan-Meier analysis and Cox regression model. RESULTS Four, seven, and four SNPs were significantly associated with disease progression, PCSM, and ACM, respectively, after ADT in univariate analysis. KIF3C rs6728684, CDON rs3737336, and IFI30 rs1045747 genotypes remained as significant predictors for disease progression; KIF3C rs6728684, PALLD rs1071738, GABRA1 rs998754, and SYT9 rs4351800 remained as significant predictors for PCSM; and SYT9 rs4351800 remained as a significant predictor for ACM in multivariate models that included clinicopathologic predictors. Moreover, strong combined genotype effects on disease progression and PCSM were also observed. Patients with a greater number of unfavorable genotypes had a shorter time to progression and worse prostate cancer-specific survival during ADT (P for trend < 0.001). CONCLUSION SNPs inside miRNAs and miRNA target sites have a potential value to improve outcome prediction in prostate cancer patients receiving ADT.
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Affiliation(s)
- Bo-Ying Bao
- Department of Pharmacy, China Medical University, Taichung, Taiwan
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Cheng KM, Huang YY, Huang JJ, Kaneko K, Kimura M, Takayama H, Juang SH, Wong FF. Synthesis and antiproliferative evaluation of N,N-disubstituted-N'-[1-aryl-1H-pyrazol-5-yl]-methnimidamides. Bioorg Med Chem Lett 2010; 20:6781-4. [PMID: 20855206 DOI: 10.1016/j.bmcl.2010.08.133] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Revised: 07/30/2010] [Accepted: 08/26/2010] [Indexed: 11/15/2022]
Abstract
A series of N,N-disubstituted-N'-[1-aryl-1H-pyrazol-5-yl]-methnimidamides was synthesized by a newly developed microwave reaction and their antiproliferative activities were evaluated. Microwave irradiation of 5-amino-1,3-disubstituted pyrazoles with various amide solvents in the presence of POCl(3) provided the corresponding 2a-2k, 3a-3c, and 4a-4f in good to excellent yields. The obtained methnimidamides were tested against NCI-H661, NPC-TW01, and Jurkat cancer cell lines and the results indicated that compounds 2d and 2e were the most potent with IC(50) values in low micromolar range.
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Affiliation(s)
- Kaung-Min Cheng
- Graduate Institute of Pharmaceutical Chemistry, China Medical University, No. 91 Hsueh-Shih Rd., Taichung 40402, Taiwan, ROC
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Juang SH, Lee CH, Lin YC, Chaing CY, Wang TC. Abstract C236: A novel oxime-containing flavone anticancer agent, WTC01, exhibits potent microtubule disruption ability. Mol Cancer Ther 2009. [DOI: 10.1158/1535-7163.targ-09-c236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Flavonoids and its derivatives are common components found in human diet. Several studies indicated flavonoids could benefit in cancer prevention or therapy, but their structure-activity relationships (SAR) remain poorly defined. In order to further understand the SAR, a series of oxime-containing flavone derivatives were designed, synthesized and evaluated for their biological anti-cancer potential. The anti-proliferative ability of these compounds was measured by several human cancer cell lines from different origins including nasopharyngeal cancer (NPC-TW01), leukemia (MT-2) and lung carcinoma (H661). Among over 30 different oxime-containing flavone derivatives, (Z)-6-[2-hydroxyimino-2-(4-methoxyphenyl)ethoxy]-2-phenyl -4H-1- benzopyran-4-one (WTC01) possessed potent activity against NPC-TW01 growth with IC50 of 400 nM. As determined by flow cytometry, WTC01 treatment results in an accumulation of NPC-TW01 cells in G2-M phase following a 6-h exposure with amaximum accumulation observed by 18 h. Furthermore, Annexin-V/propidium iodide (PI) binding assay, Hoechst 33258/PI double staining, and PARP cleavage indicates that cell death proceeded through an apoptotic pathway. Interestingly,WTC01 also causes mitochondrial transmembrane potential loss and activation of caspase-9 and caspase-3 without noticeable activation of the caspase-8. These results suggest that the WTC01-mediated apoptotic signaling pathway depends on the mitochondria and caspase-9/-3 cascades. Further studies showed that WTC01 inhibits microtubule assembly in a concentration-dependent manner, this data suggests that tubulin may serve as the cellular target for WTC01. Taken together, these findings indicated that WTC01, a novel synthetic oxime-containing flavone, exhibits potent activity against cancer growth through the disruption of microtubule and has potential for management of nasopharyngeal malignancies.
Citation Information: Mol Cancer Ther 2009;8(12 Suppl):C236.
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Affiliation(s)
- Shin-Hun Juang
- 1 Graduate Institute of Pharmaceutical Chemistry, China Medical University, Taichung, Taiwan, Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
| | - Chao-Hsun Lee
- 2 School of Phamacy, China Medical University, Taichung, Taiwan
| | - Yu-Chin Lin
- 2 School of Phamacy, China Medical University, Taichung, Taiwan
| | | | - Tai-Chi Wang
- 3 Department of Pharmacy, Tajen University, Pingtung, Taiwan
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Shia CS, Juang SH, Tsai SY, Chang PH, Kuo SC, Hou YC, Chao PDL. Metabolism and pharmacokinetics of anthraquinones in Rheum palmatum in rats and ex vivo antioxidant activity. Planta Med 2009; 75:1386-92. [PMID: 19877312 DOI: 10.1055/s-0029-1185725] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Anthraquinones are a major group of polyphenols in the rhizome of Rheum palmatum L. (RP). This study investigated the metabolism and pharmacokinetics of anthraqinones in RP decoction in rats. The concentrations of four anthraquinones including aloe-emodin, rhein, emodin, chrysophanol, and their glycosides in the decoction were quantitated by HPLC before and after acid hydrolysis with the results indicating that the anthraquinones mainly existed as the glycoside form except for rhein. Rats were orally administered RP decoction and blood samples were assayed by HPLC before and after treatments with sulfatase and beta-glucuronidase. It was found that the glucuronides of aloe-emodin, rhein, emodin and chrysophanol were predominant in the blood, whereas their aglycones were not detected except for rhein. In conclusion, the anthraquinones were subject to a rapid and extensive conjugation metabolism in rats and the serum metabolites of RP exhibited a potential free radical scavenging effect on AAPH-induced hemolysis at pharmacologically relevant concentrations.
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Affiliation(s)
- Chi-Sheng Shia
- Institute of Pharmaceutical Chemistry, China Medical University, Taichung, Taiwan, ROC
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Chen IL, Chen JY, Shieh PC, Chen JJ, Lee CH, Juang SH, Wang TC. Synthesis and antiproliferative evaluation of amide-containing flavone and isoflavone derivatives. Bioorg Med Chem 2008; 16:7639-45. [DOI: 10.1016/j.bmc.2008.07.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2008] [Revised: 07/03/2008] [Accepted: 07/04/2008] [Indexed: 11/27/2022]
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38
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Juang SH, Lung CC, Hsu PC, Hsu KS, Li YC, Hong PC, Shiah HS, Kuo CC, Huang CW, Wang YC, Huang L, Chen TS, Chen SF, Fu KC, Hsu CL, Lin MJ, Chang CJ, Ashendel CL, Chan TCK, Chou KM, Chang JY. D-501036, a novel selenophene-based triheterocycle derivative, exhibits potent in vitro and in vivo antitumoral activity which involves DNA damage and ataxia telangiectasia-mutated nuclear protein kinase activation. Mol Cancer Ther 2007; 6:193-202. [PMID: 17237279 DOI: 10.1158/1535-7163.mct-06-0482] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
D-501036 [2,5-bis(5-hydroxymethyl-2-selenienyl)-3-hydroxymethyl-N-methylpyrrole] is herein identified as a novel antineoplastic agent with a broad spectrum of antitumoral activity against several human cancer cells and an IC(50) value in the nanomolar range. The IC(50) values for D-501036 in the renal proximal tubule, normal bronchial epithelial, and fibroblast cells were >10 mumol/L. D-501036 exhibited no cross-resistance with vincristine- and paclitaxel-resistant cell lines, whereas a low level of resistance toward the etoposide-resistant KB variant was observed. Cell cycle analysis established that D-501036 treatment resulted in a dose-dependent accumulation in S phase with concomitant loss of both the G(0)-G(1) and G(2)-M phase in both Hep 3B and A-498 cells. Pulsed-field gel electrophoresis showed D-501036-induced, concentration-dependent DNA breaks in both Hep 3B and A-498 cells. These breaks did not involve interference with either topoisomerase-I and topoisomerase-II function or DNA binding. Rapid reactive oxygen species production and formation of Se-DNA adducts were evident following exposure of cells to D-501036, indicating that D-501036-mediated DNA breaks were attributable to the induction of reactive oxygen species and DNA adduct formation. Moreover, D-501036-induced DNA damage activated ataxia telangiectasia-mutated nuclear protein kinase, leading to hyperphosphorylation of Chk1, Chk2, and p53, decreased expression of CDC25A, and up-regulation of p21(WAF1) in both p53-proficient and p53-deficient cells. Collectively, the results indicate that D-501036-induced cell death was associated with DNA damage-mediated induction of ataxia telangiectasia-mutated activation, and p53-dependent and -independent apoptosis pathways. Notably, D-501036 shows potent activity against the growth of xenograft tumors of human renal carcinoma A-498 cells. Thus, D-501036 is a promising anticancer compound that has strong potential for the management of human cancers.
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Affiliation(s)
- Shin-Hun Juang
- Institute of Cancer Research, National Health Research Institutes, 7th Floor, No. 161, Section 6, Min-Chuan East Road, Taipei 114, Taiwan, Republic of China
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Shiah HS, Lee WS, Juang SH, Hong PC, Lung CC, Chang CJ, Chou KM, Chang JY. Mitochondria-mediated and p53-associated apoptosis induced in human cancer cells by a novel selenophene derivative, D-501036. Biochem Pharmacol 2006; 73:610-9. [PMID: 17150195 DOI: 10.1016/j.bcp.2006.10.019] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2006] [Revised: 10/19/2006] [Accepted: 10/20/2006] [Indexed: 11/16/2022]
Abstract
D-501036 [2,5-bis(5-hydroxymethyl-2-selenienyl)-3-hydroxymethyl-N-methylpyrrol], a novel selenophene derivative, is a highly potent cytotoxic agent with broad spectrum antitumor activity. The present study was undertaken to explore the mechanism(s) through which D-501036 exerts its action mode on the cancer cell death. D-501036 was found to suppress the growth of KB and HepG(2) cells in an irreversible manner. The results of annexin-V assays and PARP cleavage studies were consistent with the D-501036-induced apoptosis. Findings provided a strong support for the induction of mitochondria-mediated apoptosis by this drug. The examination of two canonical pathways of initiation caspases, those for caspases -8 and -9, revealed that caspase-9 protein and the activities of caspases -9 and -3 were increased in a dose- and time-dependent manner. The concentrations of Fas/Fas-L and procaspase-8 and the activity of caspase-8 were not altered. Furthermore, the mitochondrial membrane potential permeability and the release of cytochrome c to the cytosol were both increased by D-501036. The concentrations of the pro-apoptotic protein Bax and translocation of Bax from the cytosol to the mitochondria were increased in response to D-501036, whereas the concentrations of the anti-apoptotic protein Bcl-2 were decreased. Two DNA damage-related pro-apoptotic proteins, Puma and Noxa, were upregulated in a dose- and time-dependent manner. These pro-apoptotic and anti-apoptotic proteins are downstream effectors of p53. Accordingly, the phosphorylated and total forms of p53 were induced and p53 was translocated from the cytosol to the mitochondria in response to D-501036 treatment. Collectively, we conclude that D-501036 induces cellular apoptosis through the p53-associated mitochondrial pathway.
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Affiliation(s)
- Her-Shyong Shiah
- Institute of Cancer Research, National Health Research Institutes, Taipei, Taiwan
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Chen LR, Wang YC, Lin YW, Chou SY, Chen SF, Liu LT, Wu YT, Kuo CJ, Chen TSS, Juang SH. Synthesis and evaluation of isatin derivatives as effective SARS coronavirus 3CL protease inhibitors. Bioorg Med Chem Lett 2005; 15:3058-62. [PMID: 15896959 PMCID: PMC7119080 DOI: 10.1016/j.bmcl.2005.04.027] [Citation(s) in RCA: 132] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2005] [Revised: 04/08/2005] [Accepted: 04/14/2005] [Indexed: 01/13/2023]
Abstract
N-Substituted isatin derivatives were prepared from the reaction of isatin and various bromides via two steps. Bioactivity assay results (in vitro tests) demonstrated that some of these compounds are potent and selective inhibitors against SARS coronavirus 3CL protease with IC50 values ranging from 0.95 to 17.50 microM. Additionally, isatin 4o exhibited more potent inhibition for SARS coronavirus protease than for other proteases including papain, chymotrypsin, and trypsin.
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Affiliation(s)
- Li-Rung Chen
- Development Center for Biotechnology, 102, Lane 169, Kang Ning St., Xi Zhi 221, Taipei, Taiwan, ROC
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Chang GC, Lan HC, Juang SH, Wu YC, Lee HC, Hung YM, Yang HY, Whang-Peng J, Liu KJ. A pilot clinical trial of vaccination with dendritic cells pulsed with autologous tumor cells derived from malignant pleural effusion in patients with late-stage lung carcinoma. Cancer 2005; 103:763-71. [PMID: 15637694 DOI: 10.1002/cncr.20843] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND The authors conducted a pilot clinical trial to explore the vaccination of patients with late-stage lung carcinoma with dendritic cells (DCs) pulsed with necrotic tumor cells derived from malignant pleural effusion specimens, and to evaluate the antitumor immune response induced by this therapy. METHODS Autologous DCs were generated by culturing adherent mononuclear cells with interleukin-4 and granulocyte-macrophage-colony-stimulating factor for 7 days. Day-7 DCs were cocultured overnight with autologous necrotic tumor cells derived from pleural effusion specimens to allow internalization of tumor antigens. DCs were then treated with tumor necrosis factor-alpha for 16 hours. The antigen-loaded DCs were injected into each patient's inguinal lymph nodes under sonographic guidance. Eight patients with late-stage nonsmall cell lung carcinoma were treated in this manner. Patients were vaccinated once weekly for 4 weeks and then boosted twice biweekly. RESULTS The authors found that there was no Grade II/III toxicity and autoimmune response in all patients after intranodal injection of the DC vaccine. Minor to moderate increases in T-cell responses against tumor antigens were observed after DC vaccination in six of eight patients. Five patients had progressive disease. One patient had minor tumor response and two patients had stable disease. The two patients who had longer disease control also had better T-cell responses. CONCLUSIONS The results indicated that it was feasible to immunize patients with lung carcinoma intranodally with DCs pulsed with necrotic tumor cells enriched from pleural effusion specimens, and this approach may generate T-cell responses and provide clinical benefit in some patients.
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Affiliation(s)
- Gee-Chen Chang
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
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Liu KJ, Wang CC, Chen LT, Cheng AL, Lin DT, Wu YC, Yu WL, Hung YM, Yang HY, Juang SH, Whang-Peng J. Generation of carcinoembryonic antigen (CEA)-specific T-cell responses in HLA-A*0201 and HLA-A*2402 late-stage colorectal cancer patients after vaccination with dendritic cells loaded with CEA peptides. Clin Cancer Res 2004; 10:2645-51. [PMID: 15102666 DOI: 10.1158/1078-0432.ccr-03-0430] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
PURPOSE We intranodally immunized metastatic colorectal carcinoma patients, who had failed standard chemotherapy, with dendritic cells (DCs) pulsed with HLA-A*0201- or HLA-A*2402-restricted carcinoembryonic antigen (CEA) peptides to evaluate the safety of this treatment and the immune response against CEA peptides before and after the treatment. EXPERIMENTAL DESIGN Six patients with the HLA-A*2402 genotype and 4 patients with the HLA-A*0201 genotype were enrolled. A single CEA peptide (YLSGANLNL) or two CEA peptides (QYSWFVNGTF and TYACFVSNL) were used for patients with the HLA-A*0201 or HLA-A*2402 genotype, respectively. Autologous DCs were generated by culturing adherent mononuclear cells with interleukin 4 and granulocyte macrophage colony-stimulating factor for 6 days. Maturation of DCs was then induced with tumor necrosis factor alpha for 40 h. Mature DCs were pulsed with appropriate CEA peptides for 2 h. After washing, 1 million peptide-pulsed DCs were injected into one inguinal lymph node under sonographic guidance. Each patient received four injections. RESULTS No grade II/III toxicity or autoimmunity was observed. An increase in the number of CEA-specific T cells after DC vaccination could be detected in 7 of 10 (70%) patients. Two (20%) patients had stable disease for at least 12 weeks. One of these 2 patients experienced a transient decrease in CEA levels during the treatment period and also had the most significant T-cell response against the immunizing CEA peptides. CONCLUSIONS These results suggest that our vaccination procedure can generate or boost specific T-cell responses and may provide clinical benefit in certain cancer patients.
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Affiliation(s)
- Ko-Jiunn Liu
- Cancer Research Cooperative Laboratory at the National Taiwan University Hospital, Division of Cancer Research, National Health Research Institutes, Taipei, Republic of China
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Juang SH, Wei SJ, Hung YM, Hsu CY, Yang DM, Liu KJ, Chen WS, Yang WK. IFN-beta induces caspase-mediated apoptosis by disrupting mitochondria in human advanced stage colon cancer cell lines. J Interferon Cytokine Res 2004; 24:231-43. [PMID: 15144569 DOI: 10.1089/107999004323034105] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Various human colon cancer cell lines tested in vitro differed significantly in susceptibility to growth inhibition of recombinant human interferon-beta (rHuIFN-beta). Two p53-mutant lines, COH and CC-M2, derived from high-grade colon adenocarcinoma, showed signs of apoptosis after treatment with 250 IU/ml of HuIFN- beta in the culture medium. The similarly p53-mutated HT-29 line from a grade I adenocarcinoma showed no apoptosis, however, and only cell cycle G1/G0 or S phase retardation with 1000 IU/ml HuIFN-beta. After HuIFN-beta exposure, COH and CC-M2 cells showed increased levels of Fas and FasL proteins, alteration of mitochondrial membrane potential, and activation of caspase-9, caspase-8, and caspase-3 in a time-dependent manner. Treatment of COH and CC-M2 cells with anti-FasL antibodies or rFas/Fc fusion protein, however, could not prevent the apoptosis induced by HuIFN-beta. In contrast, cell-permeable specific inhibitors of the three caspases could inhibit the DNA fragmentation and cell death but not the mitochondrial membrane potential changes. Treatment with mitochondria-stabilizing reagents could significantly abrogate the apoptosis and caspase activation induced by HuIFN-beta. These results suggest that in COH and CC-M2 colon cancer cell lines, HuIFN-beta induces apoptosis mainly through mitochondrial membrane alteration and subsequent activation of the caspase cascade pathway, but not by the Fas/FasL interaction or the p53-dependent apoptotic mechanism.
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Affiliation(s)
- Shin-Hun Juang
- Cancer Research Cooperative Laboratory, NHRI, Taipei 100, ROC
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Juang SH, Pan WY, Kuo CC, Liou JP, Hung YM, Chen LT, Hsieh HP, Chang JY. A novel bis-benzylidenecyclopentanone derivative, BPR0Y007, inducing a rapid caspase activation involving upregulation of Fas (CD95/APO-1) and wild-type p53 in human oral epidermoid carcinoma cells. Biochem Pharmacol 2004; 68:293-303. [PMID: 15194001 DOI: 10.1016/j.bcp.2004.03.036] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2003] [Accepted: 03/23/2004] [Indexed: 01/27/2023]
Abstract
BPR0Y007, a bis-benzylidenecyclopentanone derivative (2,5-bis- (4-hydroxy-3-methoxybenzylidene) cyclopentanone), was identified in our laboratory as a novel antineoplastic agent with a broad spectrum of antitumor activity against many human cancer cells. A previous study showed that BPR0Y007 inhibited DNA topoisomerase I (Top 1) activity and prevented tubulin polymerization. Notably, no cross-resistance with BPR0Y007 was observed in camptothecin-, VP-16- or vincristine-resistant cell lines. In this study, we further investigated the cellular and molecular events underlying the antitumoral function of this compound in human oral epidermoid carcinoma KB cells, focusing on the early cytotoxic effect. Treatment of KB cells with BPR0Y007-induced G(2)/M phase arrest followed by sub-G(1) phase accumulation. Annexin-V-propidium iodide (PI) binding assay and DNA fragmentation assay further indicated that BPR0Y007-induced cell death proceeded through an apoptotic pathway as opposed to via necrosis. This compound produced a time-dependent activation of caspases-3 and -8, however, another caspase-3 initiator, caspase-9, was only marginally activated at later time point. We further demonstrated that the activation of the caspases cascade and nuclear fragmentation was not associated with inactivated Bcl-2 and perturbed mitochondrial membrane potential by BPR0Y007. The finding that BPR0Y007-induced apoptosis through a membrane-mediated mechanism was supported by up-regulated expression of Fas (CD95/APO-1), but not Fas-L. Furthermore, up-regulation of p53 and its affected gene, MDM2, in KB cells was found after BPR0Y007 exposure. Overall, our results demonstrated that the BPR0Y007 could induce an early cytotoxic apoptosis through a caspase-8-dependent but mitochondrial-caspase-9 independent pathway, and involving upregulation of p53.
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Affiliation(s)
- Shin-Hun Juang
- Cancer Cooperative Ward in National Taiwan University Hospital, Division of Cancer Research, National Health Research Institutes, 7, Chung-Shan Road, Taipei, Taiwan, ROC
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Liu KJ, Chen CT, Hu W, Hung YM, Hsu CY, Chuang BF, Juang SH. Expression of cytoplasmic-domain substituted epidermal growth factor receptor inhibits tumorigenicity of EGFR-overexpressed human glioblastoma multiforme. Int J Oncol 2004. [DOI: 10.3892/ijo.24.3.581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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46
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Liu KJ, Chen CT, Hu WS, Hung YM, Hsu CY, Chuang BF, Juang SH. Expression of cytoplasmic-domain substituted epidermal growth factor receptor inhibits tumorigenicity of EGFR-overexpressed human glioblastoma multiforme. Int J Oncol 2004; 24:581-90. [PMID: 14767543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023] Open
Abstract
The accumulated results of recent clinical studies have indicated that aberrant epidermal growth factor receptor (EGFR) activation due to gene amplification and/or rearrangement contributes to increased malignancy and poor prognosis in many human cancers, especially in human glioblastoma multiforme (GBM). The elevated EGFR signaling in GBM has been correlated with shorter interval to relapse and lower survival rates, even in patients treated with surgery, radiation therapy, and/or chemotherapy. Therefore, the blockade of EGFR signaling in GBM may provide an ideal alternative therapeutic strategy. In this study, two EGFR-overexpressing human GBM cell lines (i.e., DBTRG and GBM 8901) were used as a model system. We demonstrated that expression of a human EGFR (EGFRt-EGFP) chimera protein in which the cytoplasmic domain is substituted by EGFP significantly reduced the EGF-induced endogenous EGFR autophosphorylation, EGF-induced downstream extra-cellular signal-regulated kinase (ERK) and Akt signaling, and the proportion of internalized receptors in EGF stimulated cells. Furthermore, these cells' anchorage-independent growth in vitro was decreased and their tumorigenicity in vivo abrogated or strongly suppressed. Our data suggest that EGFRt-EGFP abrogates tumor growth by disrupting receptor activation via competing for EGF-like ligands, forming non-activated heterodimers with endogenous EGFR, and inhibiting the EGFR endosomal signaling by substantially diminishing receptor internalization. This treatment modality (termed 'dominant-negative EGFR therapy') and its efficacy for gliomas or other tumors are under scrutiny.
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Affiliation(s)
- Ko-Jiunn Liu
- Division of Cancer Research, NHRI, Taipei 100, Taiwan, ROC
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Liu KJ, Lu LF, Cheng HT, Hung YM, Shiou SR, Whang-Peng J, Juang SH. Concurrent delivery of tumor antigens and activation signals to dendritic cells by irradiated CD40 ligand-transfected tumor cells resulted in efficient activation of specific CD8+ T cells. Cancer Gene Ther 2004; 11:135-47. [PMID: 14647233 DOI: 10.1038/sj.cgt.7700663] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2003] [Indexed: 11/09/2022]
Abstract
To improve the efficacy of tumor cell-based and dendritic cell (DC)-based cancer vaccines, this study explored the potential of a new cancer vaccine strategy, that is, the use of CD40 ligand-transfected tumor (CD40L-tumor) cells to simultaneously deliver both tumor-derived antigens (Ag) and maturation stimuli to DCs. Materials from frozen/thawed or irradiated human tumor cells, with or without surface CD40L, were internalized efficiently by immature DCs after coincubation. However, during the internalization process, only coculturing with irradiated CD40L-tumor cells resulted in concurrent, optimal DC maturation and production of proinflammatory chemokines and pro-Th1 cytokines, such as IL-6, IL-8, IL-12, IFN-gamma, and TNF-alpha. These activated DCs were the most potent cells to support the growth of CD8+, IFN-gamma-producing T cells, and to process tumor Ag for the generation of specific cytotoxic T cells in vitro. Animals vaccinated with irradiated CD40L-tumor cell-pulsed DCs were better protected against subsequent challenge of a weakly immunogenic tumor cell line than animals vaccinated with irradiated CD40L-tumor cells alone. Thus, our results strongly support the future clinical application of using DCs pulsed with irradiated CD40L-tumor cells as a cancer vaccine.
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Affiliation(s)
- Ko-Jiunn Liu
- Cancer Research Cooperative Laboratory at National Taiwan University Hospital, Division of Cancer Research, National Health Research Institutes, Taipei, Taiwan.
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Lai JF, Juang SH, Hung YM, Cheng HY, Cheng TL, Mostov KE, Jou TS. An ecdysone and tetracycline dual regulatory expression system for studies on Rac1 small GTPase-mediated signaling. Am J Physiol Cell Physiol 2003; 285:C711-9. [PMID: 12736135 DOI: 10.1152/ajpcell.00064.2003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Regulated expression systems are invaluable for studying gene function, offer advantages of dosage-dependent and temporally defined gene expression, and limit possible clonal variation when toxic or pleiotropic genes are overexpressed. Previously, establishment of inducible expression systems, such as tetracycline- and ecdysone-inducible systems, required assessment of the inducible characteristics of individual clones by tedious luciferase assays. Taking advantage of a green fluorescent protein (GFP) reporter controlled by tetracycline- or ecdysone-responsive element and fluorescence-activated cell sorting, we propose a simple and efficient strategy to select highly inducible cell lines according to their fluorescence profiles after transiently transfecting the candidate cell pools with a surrogate GFP reporter. We have demonstrated that tetracycline- and ecdysone-inducible systems could be set up in Madin-Darby canine kidney and HEK-293 cells by employing this selection scheme. Importantly, this dual regulatory expression system is applied in studying the complex interplay between two Ras-related small GTPases, Cdc42 and Rac1, on detachment-induced apoptosis. Furthermore, establishment of two tightly regulated expression systems in one target cell line could be of great advantage for dissecting small GTPase Rac1-transduced signaling pathways by using global gene expression approaches such as proteomic assays.
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Affiliation(s)
- Jen-Feng Lai
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei 100, Taiwan, Republic of China
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Chang JY, Liu JF, Juang SH, Liu TW, Chen LT. Novel mutation of topoisomerase I in rendering cells resistant to camptothecin. Cancer Res 2002; 62:3716-21. [PMID: 12097280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
To identify mechanisms of camptothecin (CPT) resistance and the relationship between CPT-resistant cells and other anticancer agents, a CPT-resistant cell line (CPT30) and its partial revertant cell line (CPT30R) were established from a human nasopharyngeal carcinoma cell line (HONE-1). CPT30 and CPT30R cells displayed a 14- and 3.5-fold resistance to CPT compared with HONE-1 cells, respectively. The resistant and partial revertant cell lines showed cross-resistance to topotecan and increased sensitivity to cisplatin, carboplatin, and 1,3-bis(chloroethyl)-1-nitrosurea. The topoisomerase (Top) I catalytic activity of CPT30 and CPT30R cells was 30% and 200%, respectively, compared with that of HONE-1 cells. The expression of Top I protein and mRNA levels in CPT30 cells was 40% and 30% less than that in HONE-1 cells, respectively, whereas in CPT30R cells, the levels of Top I protein and mRNA were 50% and 20% higher, respectively, than that in HONE-1 cells. Both the resistant and revertant cell line whole-cell lysates demonstrated different levels of sensitivity to CPT in in vitro assays in comparison with that of HONE-1 cells. Furthermore, CPT exhibited 15- and 7-fold better binding affinity in stabilizing protein-linked DNA breaks in HONE-1 cells than in CPT30 and CPT30R cells, respectively. Direct DNA sequencing of the reverse transcription-PCR product and genomic DNA revealed a point mutation resulting in E418K mutation in the Top I of both CPT30 and CPT30R cells. Wild-type Top I RNA and genomic DNA were also detected in these two cell lines. A yeast system was used to examine whether this mutation could be responsible for CPT resistance. Our results showed that a single amino acid change (E418K) resulted in CPT resistance. Therefore, quantitative and qualitative changes in Top I were responsible for CPT resistance in CPT30 cells. CPT resistance in CPT30R cells was caused by mutation of Top I.
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Affiliation(s)
- Jang-Yang Chang
- Division of Cancer Research, National Health Research Institutes, 100 Taipei, Taiwan, Republic of China.
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50
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Dong Z, Juang SH, Kumar R, Eue I, Xie K, Bielenberg D, Lu W, Bucana C, Yang X, Fidler IJ. Suppression of tumorigenicity and metastasis in murine UV-2237 fibrosarcoma cells by infection with a retroviral vector harboring the interferon-beta gene. Cancer Immunol Immunother 1998; 46:137-46. [PMID: 9625537 PMCID: PMC11037351 DOI: 10.1007/s002620050472] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this study, we endeavored to determine the effectiveness of interferon beta (IFNbeta) gene therapy against highly metastatic murine UV-2237m fibrosarcoma cells. UV-2237m cells were engineered to produce murine IFNbeta constitutively following infection by a retroviral vector harboring the murine IFNbeta gene. Parental (UV-2237m-P), control-vector-transduced (UV-2237m-Neo), and IFNbeta-transduced (UV-2237m-IFNbeta) cells were injected subcutaneously (s.c.) or intravenously (i.v.) into syngeneic mice. Parental and control-transduced cells produced rapidly growing tumors, whereas IFNbeta-transduced cells did not. The tumorigenicity of IFNbeta-sensitive or -resistant parental cells was significantly suppressed when they were injected s.c. together with IFNbeta-transduced cells. The IFNbeta-transduced cells did not inhibit growth of parental cells injected s.c. at a distant site. UV-2237m-IFNbeta cells produced s.c. tumors in nude, SCID/Beige, and natural killer(NK)-cell-compromised syngeneic mice. The IFNbeta-transduced cells were more sensitive to in vitro splenic cell-mediated lysis than were the parental or control-transduced cells. Pretreatment of C3H/HeN mice with the NK-cell-selective antiserum (anti-asialoGM1) partially abrogated the cytotoxic activity of the cells. Cytotoxic activity was not observed in mixed culture of UV-2237m-IFNbeta cells and splenic cells from SCID/Beige mice. Significant cytotoxicity against UV-2237m-IFNbeta cells was mediated by macrophages activated by either IFNgamma, lipopolysaccharide, or a combination of both. Our data led us to conclude that the constitutive expression of IFNbeta can suppress tumorigenicity and metastasis of UV-2237m cells, which is due, in part, to activation of host effector cells.
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MESH Headings
- Animals
- Carcinogenicity Tests
- Cell Division/drug effects
- Cell Transformation, Neoplastic/drug effects
- Cytotoxicity, Immunologic/immunology
- Female
- Fibrosarcoma/metabolism
- Fibrosarcoma/pathology
- Fibrosarcoma/secondary
- Genetic Engineering
- Genetic Vectors/pharmacology
- Interferon-beta/biosynthesis
- Interferon-beta/genetics
- Interferon-beta/pharmacology
- Killer Cells, Natural/immunology
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- Lung Neoplasms/secondary
- Macrophages/immunology
- Mice
- Mice, Inbred C3H
- Mice, Knockout
- Mice, Nude
- Mice, SCID
- Neoplasms, Experimental/pathology
- Retroviridae/genetics
- Spleen/cytology
- Tumor Cells, Cultured/cytology
- Tumor Cells, Cultured/drug effects
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Affiliation(s)
- Z. Dong
- Department of Cell Biology (173), The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA e-mail: Tel.: +1 713 792 8523; Fax: +1 713 792 8747, , , , US
| | - Shin-Hun Juang
- Department of Cell Biology (173), The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA e-mail: Tel.: +1 713 792 8523; Fax: +1 713 792 8747, , , , US
| | - Rakesh Kumar
- Department of Cell Biology (173), The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA e-mail: Tel.: +1 713 792 8523; Fax: +1 713 792 8747, , , , US
| | - Ines Eue
- Department of Cell Biology (173), The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA e-mail: Tel.: +1 713 792 8523; Fax: +1 713 792 8747, , , , US
| | - Keping Xie
- Department of Cell Biology (173), The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA e-mail: Tel.: +1 713 792 8523; Fax: +1 713 792 8747, , , , US
| | - Diane Bielenberg
- Department of Cell Biology (173), The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA e-mail: Tel.: +1 713 792 8523; Fax: +1 713 792 8747, , , , US
| | - Weixin Lu
- Department of Cell Biology (173), The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA e-mail: Tel.: +1 713 792 8523; Fax: +1 713 792 8747, , , , US
| | - Corazon Bucana
- Department of Cell Biology (173), The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA e-mail: Tel.: +1 713 792 8523; Fax: +1 713 792 8747, , , , US
| | - Xiulan Yang
- Department of Cell Biology (173), The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA e-mail: Tel.: +1 713 792 8523; Fax: +1 713 792 8747, , , , US
| | - Isaiah J. Fidler
- Department of Cell Biology (173), The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, Texas 77030, USA e-mail: Tel.: +1 713 792 8523; Fax: +1 713 792 8747, , , , US
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