1
|
Chien PY, Lan YH, Wu IT, Huang YP, Hung CC. Mosloflavone from Fissistigma petelotii ameliorates oncogenic multidrug resistance by STAT3 signaling modulation and P-glycoprotein blockade. Phytomedicine 2024; 123:155210. [PMID: 38006807 DOI: 10.1016/j.phymed.2023.155210] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/03/2023] [Accepted: 11/09/2023] [Indexed: 11/27/2023]
Abstract
BACKGROUND Oncogenic multidrug resistance (MDR) is a tough question in cancer therapy. However, no effective medications targeting oncogenic MDR are currently available. Studies have demonstrated that mosloflavone exerts anti-inflammatory effects, yet, its potential to ameliorate MDR remains unclear. PURPOSE This study aimed to access the capability and elucidate molecular mechanisms of mosloflavone as a MDR resensitizing candidate. METHODS We investigated the ability of mosloflavone to reverse oncogenic MDR and investigated its underlying mechanisms through cytotoxicity assay, cell cycle assay, apoptosis assay, and zebrafish xenograft model. The modulatory interplay between mosloflavone and P-gp was investigated through analysis of calcein-AM uptake, substrate efflux, ATPase assays, and molecular docking simulation. RESULTS Mosloflavone inhibited P-gp efflux function in an uncompetitive manner without altering ABCB1 gene expression. In addition, it stimulated P-gp ATPase activity by binding to an active site distinct from that of verapamil. Regarding MDR reversal potential, mosloflavone resensitized MDR cancer cells to chemotherapies by arresting cell cycle and triggering apoptosis, possibly by enhancing reactive oxygen species accumulation and reducing phospho-STAT3. Moreover, in the zebrafish xenograft model, mosloflavone significantly potentiated the antitumor effect of paclitaxel. CONCLUSION Our findings underscore the potential of mosloflavone as a novel dual modulator of STAT3 and P-gp, indicating it is a promising candidate for overcoming MDR in cancer treatment.
Collapse
Affiliation(s)
- Po-Yu Chien
- Department of Pharmacy, China Medical University, No. 100, Sec. 1, Jingmao Rd., Beitun Dist., Taichung, Taiwan 406040, ROC; Department of Pharmacy, China Medical University Hospital, No. 2, Yude Rd., North Dist., Taichung, Taiwan 404332, ROC
| | - Yu-Hsuan Lan
- Department of Pharmacy, China Medical University, No. 100, Sec. 1, Jingmao Rd., Beitun Dist., Taichung, Taiwan 406040, ROC
| | - I-Ting Wu
- Department of Pharmacy, China Medical University, No. 100, Sec. 1, Jingmao Rd., Beitun Dist., Taichung, Taiwan 406040, ROC
| | - Yu-Pin Huang
- Department of Pharmacy, China Medical University, No. 100, Sec. 1, Jingmao Rd., Beitun Dist., Taichung, Taiwan 406040, ROC
| | - Chin-Chuan Hung
- Department of Pharmacy, China Medical University, No. 100, Sec. 1, Jingmao Rd., Beitun Dist., Taichung, Taiwan 406040, ROC; Department of Pharmacy, China Medical University Hospital, No. 2, Yude Rd., North Dist., Taichung, Taiwan 404332, ROC; Department of Healthcare Administration, Asia University, 500, Lioufeng Rd., Wufeng, Taichung, Taiwan 41354, ROC.
| |
Collapse
|
2
|
Wu IT, Kuo CY, Su CH, Lan YH, Hung CC. Pinostrobin and Tectochrysin Conquer Multidrug-Resistant Cancer Cells via Inhibiting P-Glycoprotein ATPase. Pharmaceuticals (Basel) 2023; 16:205. [PMID: 37259354 PMCID: PMC9963356 DOI: 10.3390/ph16020205] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/19/2023] [Accepted: 01/25/2023] [Indexed: 11/19/2023] Open
Abstract
Enhanced drug efflux through ATP-binding cassette transporters, particularly P-glycoprotein (P-gp), is a key mechanism underlying multidrug resistance (MDR). In the present study, we investigated the inhibitory effects of pinostrobin and tectochrysin on P-gp in MDR cancer cells and the underlying mechanisms. Fluorescence substrate efflux assays, multidrug resistance 1 (MDR1) shift assays, P-gp ATPase activity assays, Western blotting, and docking simulation were performed. The potential of the test compounds for MDR reversal and the associated molecular mechanisms were investigated through cell viability assay, cell cycle analysis, apoptosis assay, and further determining the combination index. Results demonstrated that pinostrobin and tectochrysin were not the substrates of P-gp, nor did they affect the expression of this transporter. Both compounds noncompetitively inhibited the efflux of rhodamine 123 and doxorubicin through P-gp. Furthermore, they resensitized MDR cancer cells to chemotherapeutic drugs, such as vincristine, paclitaxel, and docetaxel; thus, they exhibited strong MDR reversal effects. Our findings indicate that pinostrobin and tectochrysin are effective P-gp inhibitors and promising candidates for resensitizing MDR cancer cells.
Collapse
Affiliation(s)
- I-Ting Wu
- Department of Pharmacy, China Medical University, No. 100, Sec. 1, Jingmao Rd., Beitun District, Taichung 406040, Taiwan
| | - Chan-Yen Kuo
- Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 231405, Taiwan
| | - Ching-Hui Su
- Department of Pharmacy, China Medical University, No. 100, Sec. 1, Jingmao Rd., Beitun District, Taichung 406040, Taiwan
| | - Yu-Hsuan Lan
- Department of Pharmacy, China Medical University, No. 100, Sec. 1, Jingmao Rd., Beitun District, Taichung 406040, Taiwan
| | - Chin-Chuan Hung
- Department of Pharmacy, China Medical University, No. 100, Sec. 1, Jingmao Rd., Beitun District, Taichung 406040, Taiwan
- Department of Pharmacy, China Medical University Hospital, No. 2, Yude Rd., North District, Taichung 404332, Taiwan
- Department of Healthcare Administration, Asia University, 500, Lioufeng Rd., Wufeng, Taichung 41354, Taiwan
| |
Collapse
|
3
|
Zhou Y, Liang WJ, Chen ZH, Liu T, Song T, Chen SW, Wang P, Li JL, Lan YH, Cheng MJ, Huang JX, Niu JW, Xiao JP, Hu JX, Lin LF, Huang Q, Deng AP, Tan XH, Kang M, Chen GM, Dong MR, Zhong HJ, Ma W. [Course of disease and related epidemiological parameters of COVID-19: a prospective study based on contact tracing cohort]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:474-478. [PMID: 35488546 DOI: 10.3760/cma.j.cn112150-20220107-00025] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To analyze the course of disease and epidemiological parameters of COVID-19 and provide evidence for making prevention and control strategies. Methods: To display the distribution of course of disease of the infectors who had close contacts with COVID-19 cases from January 1 to March 15, 2020 in Guangdong Provincial, the models of Lognormal, Weibull and gamma distribution were applied. A descriptive analysis was conducted on the basic characteristics and epidemiological parameters of course of disease. Results: In total, 515 of 11 580 close contacts were infected, with an attack rate about 4.4%, including 449 confirmed cases and 66 asymptomatic cases. Lognormal distribution was fitting best for latent period, incubation period, pre-symptomatic infection period of confirmed cases and infection period of asymptomatic cases; Gamma distribution was fitting best for infectious period and clinical symptom period of confirmed cases; Weibull distribution was fitting best for latent period of asymptomatic cases. The latent period, incubation period, pre-symptomatic infection period, infectious period and clinical symptoms period of confirmed cases were 4.50 (95%CI:3.86-5.13) days, 5.12 (95%CI:4.63-5.62) days, 0.87 (95%CI:0.67-1.07) days, 11.89 (95%CI:9.81-13.98) days and 22.00 (95%CI:21.24-22.77) days, respectively. The latent period and infectious period of asymptomatic cases were 8.88 (95%CI:6.89-10.86) days and 6.18 (95%CI:1.89-10.47) days, respectively. Conclusion: The estimated course of COVID-19 and related epidemiological parameters are similar to the existing data.
Collapse
Affiliation(s)
- Y Zhou
- School of Public Health, Southern Medical University, Guangzhou 510515, China Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - W J Liang
- Institute of Immunization Programme, Guangdong Provincial Center for Disease Control and Prevention; Guangzhou 511430, China
| | - Z H Chen
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - T Liu
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - T Song
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - S W Chen
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - P Wang
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - J L Li
- Institute of Immunization Programme, Guangdong Provincial Center for Disease Control and Prevention; Guangzhou 511430, China
| | - Y H Lan
- Institute of Immunization Programme, Guangdong Provincial Center for Disease Control and Prevention; Guangzhou 511430, China
| | - M J Cheng
- Institute of Disinfection and Vector Control, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - J X Huang
- Institute of Environment and School Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - J W Niu
- Institute of Environment and School Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - J P Xiao
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - J X Hu
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - L F Lin
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - Q Huang
- Institute of Nutrition and Food Safety, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - A P Deng
- Institute of Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - X H Tan
- Institute of Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - M Kang
- Institute of Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - G M Chen
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - M R Dong
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - H J Zhong
- Public Health Emergency Preparedness and Response Division, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - Wenjun Ma
- School of Public Health, Southern Medical University, Guangzhou 510515, China Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| |
Collapse
|
4
|
Lan YH, Chen IH, Lu HH, Guo TJ, Hwang TL, Leu YL. Euphormins A and B, New Pyranocoumarin Derivatives from Euphorbia formosana Hayata, and Their Anti-Inflammatory Activity. Molecules 2022; 27:molecules27061885. [PMID: 35335252 PMCID: PMC8954059 DOI: 10.3390/molecules27061885] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/06/2022] [Accepted: 03/08/2022] [Indexed: 11/23/2022]
Abstract
Euphormin-A (1) and euphormin-B (2), two new pyranocoumarin derivatives, and forty known compounds (3–42) were isolated from Euphorbia formosana Hayata (Euphorbiaceae). The chemical structures of all compounds were established based on spectroscopic analyses. Several isolates were evaluated for their anti-inflammatory activity. Compounds 1, 2, 10, 18, 25, and 33 significantly inhibited against superoxide anion generation and elastase release by human neutrophils in response to formyl-L-methionyl-L-leucyl-L-phenylalanine/cytochalasin B (fMLP/CB). Furthermore, compounds 25 and 33 displayed the most potent effects with IC50 values of 0.68 ± 0.18 and 1.39 ± 0.12 µM, respectively, against superoxide anion generation when compared with the positive control (2.01 ± 0.06 µM).
Collapse
Affiliation(s)
- Yu-Hsuan Lan
- School of Pharmacy, China Medical University, Taichung 406, Taiwan
- Correspondence: (Y.-H.L.); (Y.-L.L.); Tel.: +886-4-22053366 (ext. 5138) (Y.-H.L.); +886-3-2118800 (ext. 5524) (Y.-L.L.)
| | - I-Hsiao Chen
- Department of Medical Laboratory Science, College of Medical Science and Technology, I Shou University, Kaohsiung 824, Taiwan;
| | - Hsin-Hung Lu
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (H.-H.L.); (T.-J.G.); (T.-L.H.)
| | - Ting-Jing Guo
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (H.-H.L.); (T.-J.G.); (T.-L.H.)
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (H.-H.L.); (T.-J.G.); (T.-L.H.)
- Research Center for Chinese Herbal Medicine, Graduate Institute of Healthy 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
| | - Yann-Lii Leu
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (H.-H.L.); (T.-J.G.); (T.-L.H.)
- Tissue Bank, Chang Gung Memorial Hospital at Linkou, Taoyuan 333, Taiwan
- Correspondence: (Y.-H.L.); (Y.-L.L.); Tel.: +886-4-22053366 (ext. 5138) (Y.-H.L.); +886-3-2118800 (ext. 5524) (Y.-L.L.)
| |
Collapse
|
5
|
Lin HC, Chiang HP, Jiang WP, Lan YH, Huang GJ, Hsieh MT, Kuo SC, Lo CL, Chiang YT. Exploitation of a rod-shaped, acid-labile curcumin-loaded polymeric nanogel system in the treatment of systemic inflammation. Materials Science and Engineering: C 2021; 133:112597. [DOI: 10.1016/j.msec.2021.112597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 12/02/2021] [Accepted: 12/03/2021] [Indexed: 10/19/2022]
|
6
|
Chang HY, Lo LH, Lan YH, Hong MX, Chan YT, Ko TP, Huang YR, Cheng TH, Liaw CC. Structural insights into the substrate selectivity of α-oxoamine synthases from marine Vibrio sp. QWI-06. Colloids Surf B Biointerfaces 2021; 210:112224. [PMID: 34838420 DOI: 10.1016/j.colsurfb.2021.112224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 08/24/2021] [Revised: 11/09/2021] [Accepted: 11/13/2021] [Indexed: 12/12/2022]
Abstract
Pyridoxal phosphate (PLP)-dependent α-oxoamine synthases are generally believed to be responsible for offloading and elongating polyketides or catalyzing the condensation of amino acids and acyl-CoA thioester substrates, such as serine into sphingolipids and cysteate into sulfonolipids. Previously, we discovered vitroprocines, which are tyrosine- and phenylalanine-polyketide derivatives, as potential new antibiotics from the genus Vibrio. Using bioinformatics analysis, we identified putative genes of PLP-dependent enzyme from marine Vibrio sp. QWI-06, implying a capability to produce amino-polyketide derivatives. One of these genes was cloned, and the recombinant protein, termed Vibrio sp. QWI-06 α-oxoamine synthases-1 (VsAOS1), was overexpressed for structural and biochemical characterization. The crystal structure of the dimeric VsAOS1 was determined at 1.8-Å resolution in the presence of L-glycine. The electron density map indicated a glycine molecule occupying the pyridoxal binding site in one monomer, suggesting a snapshot of the initiation process upon the loading of amino acid substrate. In mass spectrometry analysis, VsAOS1 strictly acted to condense L-glycine with C12 or C16 acyl-CoA, including unsaturated acyl analog. Furthermore, a single residue replacement of VsAOS1 (G243S) allowed the enzyme to generate sphingoid derivative when L-serine and lauroyl-CoA were used as substrates. Our data elucidate the mechanism of substrate binding and selectivity by the VsAOS1 and provide a thorough understanding of the molecular basis for the amino acid preference of AOS members.
Collapse
Affiliation(s)
- Hsin-Yang Chang
- Department of Life Sciences and Institute of Genome Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan.
| | - Li-Hua Lo
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Yu-Hsuan Lan
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Mao-Xuan Hong
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Yuen Ting Chan
- Department of Life Sciences and Institute of Genome Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Tzu-Ping Ko
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
| | - Yu-Ru Huang
- Department of Life Sciences and Institute of Genome Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Tien-Hsing Cheng
- Department of Life Sciences and Institute of Genome Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Chih-Chuang Liaw
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan; Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung, Taiwan; Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, Taiwan.
| |
Collapse
|
7
|
Zhao SM, Liu YM, Liu N, Zhang HL, Song ZF, Gao WH, Lan YH, Fan AW, Liu XL. [Clinical effects of retrograde anterolateral thigh perforator flaps assisted with computed tomography angiography in repairing skin and soft tissue defects around the knee or in proximal lower leg]. Zhonghua Shao Shang Za Zhi 2021; 37:356-362. [PMID: 33874708 DOI: 10.3760/cma.j.cn501120-20200905-00401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical effects of retrograde anterolateral thigh perforator flaps assisted with computed tomography angiography (CTA) in repairing skin and soft tissue defects around the knee or in proximal lower leg. Methods: A retrospective cohort study was conducted. From May 2015 to October 2019, 17 patients with skin and soft tissue defects around the knee or in proximal lower leg were admitted to the Department of Orthopedics of Jizhong Energy Xingtai Mig General Hospital, including 12 males and 5 females, aged 16-65 years, with an average age of 35 years. The areas of skin and soft tissue defects after debridement ranged from 6.0 cm×3.0 cm to 15.0 cm×9.0 cm. The retrograde anterolateral thigh perforator flaps were designed according to the origin and distribution of the perforating branches in flaps and the length of the vascular pedicle examined with CTA and the condition of the wound to repair the wounds. The areas of resected flaps ranged from 6.5 cm×3.5 cm to 15.5 cm×9.5 cm. The wounds in donor sites of flaps were sutured directly or covered with medium-thickness skin grafts from healthy upper leg. The sources of the perforating branches in flaps were recorded. The lateral circumflex femoral artery, its branches, and the relative length of the vascular pedicle were compared between preoperative CTA detection and intraoperative observation. The survivals of the flaps were observed. At the last follow-up, the effects of flaps in repairing wounds were evaluated according to evaluation standard of efficacy satisfaction; the motion ranges of flexion and extension of the knee joint were measured, and the knee joint function was evaluated according to the Hohl knee joint function evaluation standard; the sensory function in the flap area was evaluated according to the sensory function evaluation standard formulated by the British Medical Research Council; the wound healing and the occurrence of complication affecting motor function of limb of flap donor sites was observed. Data were statistically analyzed with paired sample t test. Results: The perforating branches in flaps originated from descending branches, oblique branches, and rectus femoris branches of lateral circumflex femoral artery in 7, 6, and 4 patients, respectively. The flaps with blood supply from descending branches, oblique branches, and rectus femoris branches of lateral circumflex femoral artery were type 1, 2, and 3 retrograde anterolateral thigh perforator flaps, respectively. The preoperative CTA examination of lateral circumflex femoral artery and its branches were consistent with those observed during operation. The relative lengths of vascular pedicles of type 1, 2, and 3 retrograde anterolateral thigh perforator flaps calculated after CTA examination were 0.32±0.13, 0.56±0.07, and 0.56±0.15, which were close to 0.35±0.12, 0.52±0.10, and 0.53±0.12 measured and calculated during operation, respectively (t=0.45, 0.80, 0.31, P>0.05). All flaps survived in 17 cases without vascular crisis. At the last follow-up, 16 patients were satisfied with effects of flaps in wound repair, with 1 patient feeling average about the effect; the flexion range of knee joint was 100-120°, and the extension range of knee joint was -2-0°; knee joint function was evaluated as excellent in 9 cases, good in 7 cases, and poor in 1 case; the sensory function of the flap area reached S4 level in 2 cases, S3 level in 8 cases, and S2 level in 7 cases; the wounds in flap donor sites healed well; there was no adverse effect in motor function of limbs. Conclusions: Retrograde anterolateral thigh perforator flap is an effective method for repairing skin and soft tissue defects around the knee or in proximal lower leg. Preoperative CTA examination can fully show the anatomical characteristics of the branches of the lateral circumflex femoral artery and the perforating vessels of each branch, which can guide preoperative flap design and operation, thus shortening operation time and improving flap survival rate, with good clinical effects.
Collapse
Affiliation(s)
- S M Zhao
- Department of Orthopedics, Jizhong Energy Xingtai Mig General Hospital, Xingtai 054000, China
| | - Y M Liu
- Department of Urology, Yidu Central Hospital of Weifang, Weifang 262500, China
| | - N Liu
- Medical Management Division, Jizhong Energy Xingtai Mig General Hospital, Xingtai 054000, China
| | - H L Zhang
- Department of Orthopedics, Jizhong Energy Xingtai Mig General Hospital, Xingtai 054000, China
| | - Z F Song
- Department of Orthopedics, Jizhong Energy Xingtai Mig General Hospital, Xingtai 054000, China
| | - W H Gao
- Department of Orthopedics, Jizhong Energy Xingtai Mig General Hospital, Xingtai 054000, China
| | - Y H Lan
- Department of Orthopedics, Jizhong Energy Xingtai Mig General Hospital, Xingtai 054000, China
| | - A W Fan
- Department of Orthopedics, Jizhong Energy Xingtai Mig General Hospital, Xingtai 054000, China
| | - X L Liu
- Department of Orthopedics, Jizhong Energy Xingtai Mig General Hospital, Xingtai 054000, China
| |
Collapse
|
8
|
Teng YN, Lin KI, Lin YC, Thang TD, Lan YH, Hung CC. A novel flavonoid from Fissistigma cupreonitens, 5‑hydroxy‑7,8‑dimethoxyflavanone, competitively inhibited the efflux function of human P-glycoprotein and reversed cancer multi-drug resistance. Phytomedicine 2021; 85:153528. [PMID: 33735724 DOI: 10.1016/j.phymed.2021.153528] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 02/03/2021] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND P-glycoprotein (P-gp) over-expression plays a vital role in not only systemic drug bioavailability but also cancer multi-drug resistance (MDR). Develop functional inhibitors of P-gp can conquer both problems. PURPOSE AND STUDY DESIGN The aim of the present study was to research the P-gp modulating effects and MDR reversing ability of a novel flavonoid from Fissistigma cupreonitens, the underlying inhibitory mechanisms were further elucidated as well. METHODS Calcein-AM, rhodamine 123, and doxorubicin were fluorescent substrates for the evaluation of P-gp inhibitory function and detailed drug binding modes. Docking simulation was performed to reveal the in silico molecular bonding. ATPase assay and MDR1 shift assay were adopted to reveal the ATP consumption and conformational change of P-gp. The MDR reversing effects were demonstrated through cytotoxicity, cell cycle, and apoptosis analyses. RESULTS 5‑hydroxy‑7,8‑dimethoxyflavanone inhibited the efflux of rhodamine 123 and doxorubicin in a competitive manner, and increased the intracellular fluorescence of calcein at a concentration as low as 2.5 μg/ml. 5‑hydroxy‑7,8‑dimethoxyflavanone slightly changed P-gp's conformation and only stimulated ATPase at very high concentration (100 μg/ml). The docking results showed that 5‑hydroxy‑7,8‑dimethoxyflavanone and verapamil exhibited similar binding affinity to P-gp. The MDR reversing effects were prominent in the vincristine group, the reversal folds were 23.01 and 13.03 when combined with 10 μg/ml 5‑hydroxy‑7,8‑dimethoxyflavanone in the P-gp over-expressing cell line (ABCB1/Flp-In™-293) and MDR cancer cell line (KB/VIN), respectively. CONCLUSION The present study demonstrated that 5‑hydroxy‑7,8‑dimethoxyflavanone was a novel effective flavonoid in the P-gp efflux inhibition and in vitro cancer MDR reversion.
Collapse
Affiliation(s)
- Yu-Ning Teng
- School of Medicine, College of Medicine, I-Shou University, 8 Yida Road, Kaohsiung 82445, Taiwan, R.O.C..
| | - Kun-I Lin
- Department of Obstetrics and Gynecology, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan, R.O.C.; Department of Cosmetic Science, Providence University, Taichung, Taiwan, R.O.C..
| | - Yu-Chao Lin
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan, R.O.C.; Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan, R.O.C.
| | - Tran-Dinh Thang
- Institute of Biotechnology and Food Technology, Industrial University of Ho Chi Minh City, Ho Chi Minh City, Vietnam.
| | - Yu-Hsuan Lan
- Department of Pharmacy, College of Pharmacy, China Medical University, 100, Sec. 1, Jingmao Rd., Beitun Dist., Taichung City 406040, Taiwan, R.O.C..
| | - Chin-Chuan Hung
- Department of Pharmacy, College of Pharmacy, China Medical University, 100, Sec. 1, Jingmao Rd., Beitun Dist., Taichung City 406040, Taiwan, R.O.C.; Department of Pharmacy, China Medical University Hospital, 2 Yude Road, Taichung 40447, Taiwan, R.O.C.; Department of Healthcare Administration, Asia University, 500, Lioufeng Rd., Wufeng, Taichung, 41354, Taiwan.
| |
Collapse
|
9
|
Lin HC, Li WH, Chen CC, Cheng TH, Lan YH, Huang MD, Chen WM, Chang JS, Chang HY. Diverse Enzymes With Industrial Applications in Four Thraustochytrid Genera. Front Microbiol 2020; 11:573907. [PMID: 33193181 PMCID: PMC7641610 DOI: 10.3389/fmicb.2020.573907] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 09/24/2020] [Indexed: 11/19/2022] Open
Abstract
Thraustochytrids are heterotrophic fungus-like protists that can dissolve organic matters with enzymes. Four strains, AP45, ASP1, ASP2, and ASP4, were isolated from the coastal water of Taiwan, and respectively identified as Aurantiochytrium sp., Schizochytrium sp., Parietichytrium sp., and Botryochytrium sp. based on 18S rRNA sequences. Transcriptome datasets of these four strains at days 3-5 were generated using Next Generation Sequencing technology, and screened for enzymes with potential industrial applications. Functional annotations based on KEGG database suggest that many unigenes of all four strains were related to the pathways of industrial enzymes. Most of all four strains contained homologous genes for 15 out of the 17 targeted enzymes, and had extra- and/or intra-cellular enzymatic activities, including urease, asparaginase, lipase, glucosidase, alkaline phosphatase and protease. Complete amino sequences of the first-time identified L-asparaginase and phytase in thraustochytrids were retrieved, and respectively categorized to the Type I and BPPhy families based on phylogenetic relationships, protein structural modeling and active sites. Milligram quantities of highly purified, soluble protein of urease and L-asparaginase were successfully harvested and analyzed for recombinant enzymatic activities. These analytical results highlight the diverse enzymes for wide-range applications in thraustochytrids.
Collapse
Affiliation(s)
- Hsiu-Chin Lin
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan.,Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Wei-Hao Li
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Chi-Chih Chen
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Tien-Hsing Cheng
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Yu-Hsuan Lan
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Ming-Der Huang
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Wen-Ming Chen
- Department of Seafood Science, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan
| | - Jo-Shu Chang
- Department of Chemical and Materials Engineering, College of Engineering, Tunghai University, Taichung, Taiwan.,Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung, Taiwan.,Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Hsin-Yang Chang
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan.,Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, Taiwan
| |
Collapse
|
10
|
Lan YH, Yen CH, Leu YL. Chemical constituents from the aerial parts of Euphorbia formosana Hayata and their chemotaxonomic significance. BIOCHEM SYST ECOL 2020. [DOI: 10.1016/j.bse.2019.103967] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
11
|
Weng IT, Lin YA, Chen GY, Chiang HM, Liu YJ, Chen CJ, Lan YH, Lee CL. (-)-β-Homoarginine anhydride, a new antioxidant and tyrosinase inhibitor, and further active components from Trichosanthes truncata. Nat Prod Res 2018; 34:2262-2268. [PMID: 30580588 DOI: 10.1080/14786419.2018.1531404] [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] [Indexed: 10/27/2022]
Abstract
One new amino acid derivative, (-)-β-homoarginine anhydride 1, as well as nine known compounds were isolated from Trichosanthes truncata. The structures of the isolates were elucidated by spectroscopic methods. Among them, compounds 5 and 11 could notably dose-dependently inhibit ROS productions in HaCaT keratinocyte cells without cytotoxicity in the concentration range of 0.2-20 μM. In cell-free mushroom tyrosinase assay, compounds 1-5, 10 and 11 had more potential anti-tyrosinase activities with IC50 values of 106.9-255.6 μM than arbutin that were similar to predicted values of binding affinity calculated by molecule docking. The most active 2 had hydrogen bonds (Ser77, Glu309, Phe454) and electrostatic charges (Glu309, Glu248) interactions with mushroom tyrosinase, respectively. Our data manifested that T. truncata and its components are potentially to be developed as anti-aging and whitening agents for skin disorders.
Collapse
Affiliation(s)
- I-Ting Weng
- Ph.D Program for Biotech Pharmaceutical Industry, China Medical University, Taichung, Taiwan.,Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
| | - Yen-An Lin
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Guan-Yu Chen
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan
| | - Hsiu-Mei Chiang
- Department of Cosmeceutics, China Medical University, Taichung, Taiwan
| | - Yi-Jung Liu
- Department of Cosmeceutics, China Medical University, Taichung, Taiwan
| | - Chao-Jung Chen
- Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan.,Proteomics Core Laboratory, Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
| | - Yu-Hsuan Lan
- School of Pharmacy, China Medical University, Taichung, Taiwan
| | - Chia-Lin Lee
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan.,Department of Cosmeceutics, China Medical University, Taichung, Taiwan.,Chinese Medicine Research Center, China Medical University, Taichung, Taiwan
| |
Collapse
|
12
|
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.
Collapse
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
| |
Collapse
|
13
|
Hsu YM, Lai WC, Li CY, Lan YH, Tsai YC, Hunyadi A, Hou MF, Wu YC, Chang FR. Estrogenic and Anti-estrogenic Constituents of Erythrina caffra. Nat Prod Commun 2016; 11:1099-1102. [PMID: 30725567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
Utilizing the pER8:GUS transgenic plant bioassay system to monitor estrogenic activity-guided fractionation, one new constituent, erycaffrain A, together with I known compounds were isolated from the ethanolic extract of Erythrina caffra. The structures of the isolated compounds were identified in combination with spectroscopic analyses. This is the first study reporting the estrogenic activity of E. caffra. The new compound exhibited as a SREM, but.also showed both estrogenic and anti-estrogenic activities in the MCF-7 cancer cell model. Several known phytoestrogens in this plant also revealed possible new functions for E. caffra stem.
Collapse
|
14
|
Hsu YM, Lai WC, Li CY, Lan YH, Tsai YC, Hunyadi A, Hou MF, Yuan SS, Wu YC, Chang FR. Estrogenic and Anti-estrogenic Constituents of Erythrina caffra. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100817] [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] Open
Abstract
Utilizing the pER8:GUS transgenic plant bioassay system to monitor estrogenic activity-guided fractionation, one new constituent, erycaffrain A, together with 11 known compounds were isolated from the ethanolic extract of Erythrina caffra. The structures of the isolated compounds were identified in combination with spectroscopic analyses. This is the first study reporting the estrogenic activity of E. caffra. The new compound exhibited as a SREM, but also showed both estrogenic and anti-estrogenic activities in the MCF-7 cancer cell model. Several known phytoestrogens in this plant also revealed possible new functions for E. caffra stem.
Collapse
Affiliation(s)
- Yu-Ming Hsu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807,Taiwan
| | - Wan-Chun Lai
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807,Taiwan
| | - Chi-Ying Li
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807,Taiwan
| | - Yu-Hsuan Lan
- School of Pharmacy, College of Pharmacy, China Medical University, Taichung 404, Taiwan
| | - Yu-Chi Tsai
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807,Taiwan
| | - Attila Hunyadi
- Institute of Pharmacognosy, University of Szeged, H-6720 Szeged, Hungary
| | - Ming-Feng Hou
- Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
- Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Shyng-Shiou Yuan
- Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
- Translational Research Center and Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Yang-Chang Wu
- School of Pharmacy, College of Pharmacy, China Medical University, Taichung 404, Taiwan
- Research Center for Chinese Herbal Medicine, China Medical University, Taichung 404, Taiwan
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung 404,Taiwan
- Center of Molecular Medicine, China Medical University Hospital, Taichung 404, Taiwan
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807,Taiwan
- Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Center for Infectious Disease and Cancer Research, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| |
Collapse
|
15
|
Yin CT, Wen ZH, Lan YH, Chang YC, Wu YC, Sung PJ. New Anti-inflammatory Norcembranoids from the Soft Coral Sinularia numerosa. Chem Pharm Bull (Tokyo) 2016; 63:752-6. [PMID: 26329871 DOI: 10.1248/cpb.c15-00414] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Two new norcembranoids, sinumerolide A (1) and its epimer, 7E-sinumerolide A (2), were isolated from the ethyl acetate extract of the soft coral Sinularia numerosa. The structures of compounds 1 and 2 were established using spectroscopic methods. In the in vitro anti-inflammatory effect test, norcembranoids 1 and 2 were found to inhibit the accumulation of the pro-inflammatory inducible nitric oxide synthase protein of lipopolysaccharide-stimulated RAW264.7 macrophage cells significantly.
Collapse
Affiliation(s)
- Chen-Ting Yin
- Graduate Institute of Marine Biology, National Dong Hwa University
| | | | | | | | | | | |
Collapse
|
16
|
Abstract
A new cembranoidal diterpene, trocheliolide B (1), was isolated from the octocoral Sarcophyton trocheliophorum. The structure of 1 was elucidated on the basis of spectroscopic methods.
Collapse
Affiliation(s)
- Kuan-Ming Liu
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung 944, Taiwan
- National Museum of Marine Biology & Aquarium, Pingtung 944, Taiwan
| | - Yu-Hsuan Lan
- School of Pharmacy, College of Pharmacy, China Medical University, Taichung 404, Taiwan
| | - Ching-Chyuan Su
- Department of Beauty Science, Meiho University, Pingtung 912, Taiwan
| | - Ping-Jyun Sung
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung 944, Taiwan
- National Museum of Marine Biology & Aquarium, Pingtung 944, Taiwan
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung 404, Taiwan
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| |
Collapse
|
17
|
Liu KM, Lan YH, Su CC, Sung PJ. Trocheliolide B, a New Cembranoidal Diterpene from the Octocoral Sarcophyton trocheliophorum. Nat Prod Commun 2016; 11:21-22. [PMID: 26996009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Abstract
A new cembranoidal diterpene, trocheliolide B (1), was isolated from the octocoral Sarcophyton trocheliophorum. The structure of 1 was elucidated on the basis of spectroscopic methods.
Collapse
|
18
|
Hsiao TH, Sung CS, Lan YH, Wang YC, Lu MC, Wen ZH, Wu YC, Sung PJ. New Anti-Inflammatory Cembranes from the Cultured Soft Coral Nephthea columnaris. Mar Drugs 2015; 13:3443-53. [PMID: 26035022 PMCID: PMC4483638 DOI: 10.3390/md13063443] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [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: 04/19/2015] [Revised: 05/21/2015] [Accepted: 05/21/2015] [Indexed: 01/08/2023] Open
Abstract
Two new cembranes, columnariols A (1) and B (2), were isolated from the cultured soft coral Nephthea columnaris. The structures of cembranes 1 and 2 were elucidated by spectroscopic methods. In the anti-inflammatory effects test, cembranes 1 and 2 were found to significantly inhibit the accumulation of the pro-inflammatory iNOS and COX-2 protein of the lipopolysaccharide (LPS)-stimulated RAW264.7 macrophage cells. Compound 1 exhibited moderate cytotoxicity toward LNCaP cells with an IC50 value of 9.80 μg/mL.
Collapse
Affiliation(s)
- Ting-Hsi Hsiao
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung 944, Taiwan.
- National Museum of Marine Biology and Aquarium, Pingtung 944, Taiwan.
| | - Chun-Sung Sung
- Department of Anesthesiology, Taipei Veterans General Hospital, Taipei 112, Taiwan.
- School of Medicine, National Yang-Ming University, Taipei 112, Taiwan.
| | - Yu-Hsuan Lan
- School of Pharmacy, College of Pharmacy, China Medical University, Taichung 404, Taiwan.
| | - Yi-Chen Wang
- Department of Marine Biotechnology and Resources, Asia-Pacific Ocean Research Center, National Sun Yat-sen University, Kaohsiung 804, Taiwan.
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Armed Forces General Hospital, Kaohsiung 802, Taiwan.
| | - Mei-Chin Lu
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung 944, Taiwan.
- National Museum of Marine Biology and Aquarium, Pingtung 944, Taiwan.
| | - Zhi-Hong Wen
- Department of Marine Biotechnology and Resources, Asia-Pacific Ocean Research Center, National Sun Yat-sen University, Kaohsiung 804, Taiwan.
| | - Yang-Chang Wu
- School of Pharmacy, College of Pharmacy, China Medical University, Taichung 404, Taiwan.
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung 404, Taiwan.
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Center for Molecular Medicine, China Medical University Hospital, Taichung 404, Taiwan.
| | - Ping-Jyun Sung
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung 944, Taiwan.
- National Museum of Marine Biology and Aquarium, Pingtung 944, Taiwan.
- Department of Marine Biotechnology and Resources, Asia-Pacific Ocean Research Center, National Sun Yat-sen University, Kaohsiung 804, Taiwan.
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung 404, Taiwan.
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| |
Collapse
|
19
|
Cheng YJ, Shyu WC, Teng YH, Lan YH, Lee SD. Antagonistic interaction between cordyceps sinensis and exercise on protection in fulminant hepatic failure. Am J Chin Med 2015; 42:1199-213. [PMID: 25242080 DOI: 10.1142/s0192415x1450075x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Herb supplements are widely used by Asian athletes; however, there are no studies evaluated the co-effects of exercise and herb supplements on hepatic failure. In this study, D-GalN/LPS-induced fulminant hepatic failure was used to examine whether there are synergistic or antagonistic effects of exercise and Cordyceps sinensis (CS). Mice were randomly divided into eight groups: control, swimming exercise for four weeks, D-GalN/LPS challenge, swimming exercise plus D-GalN/LPS, 20 mg/kg or 40 mg/kg CS pretreated for four weeks plus D-GalN/LPS, and swimming exercise combined with 20 mg/kg or 40 mg/kg CS pretreatment plus D-GalN/LPS. Either exercise or 40 mg/kg CS pretreatment alone significantly decreased D-GalN/LPS-induced TNF-α, AST, NO, apoptotic-related proteins, and hepatocyte apoptosis. Exercise or 40 mg/kg CS alone increased the IL-10 and D-GalN/LPS-suppressed Superoxide Dismutase (SOD) level. However, no protective or worse effect was observed in the mice treated with exercise preconditioning combined 40 mg/kg CS compared to those receive exercise alone or CS alone. TNF-α, AST, NO level, caspase-3 activity, and hepatocytes apoptosis were not significantly different in the exercise combined with 40 mg/kg CS compared to mice challenged with D-GalN/LPS. The IL-10 level was significantly decreased after D-GalN/LPS stimulation in the mice received exercise combined with 40 mg/kg CS, indicating the combination strongly reduced the anti-inflammatory effect. In summary, preconditioning exercise or CS pretreatment alone can protect mice from septic liver damage, but in contrast, the combination of exercise and CS does not produce any benefit. The antagonistic interactions between exercise and CS imply taking CS is not recommended for people who undertake regular exercise.
Collapse
Affiliation(s)
- Yu-Jung Cheng
- Department of Physical Therapy and Graduate Institute of Rehabilitation Science, China Medical University, Taichung, Taiwan, ROC
| | | | | | | | | |
Collapse
|
20
|
Peng YT, Wu WR, Chen LR, Kuo KK, Tsai CH, Huang YT, Lan YH, Chang FR, Wu YC, Shiue YL. Upregulation of cyclin-dependent kinase inhibitors CDKN1B and CDKN1C in hepatocellular carcinoma-derived cells via goniothalamin-mediated protein stabilization and epigenetic modifications. Toxicol Rep 2015; 2:322-332. [PMID: 28962365 PMCID: PMC5598353 DOI: 10.1016/j.toxrep.2015.01.010] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 01/10/2015] [Accepted: 01/12/2015] [Indexed: 01/12/2023] Open
Abstract
Cell cycle deregulation is common in human hepatocellular carcinoma (HCC). To ensure proper cell cycle controlling, cyclin/cyclin-dependent kinases (CDK) complexes are tightly regulated by CDK inhibitors (CKIs) in normal cells. However, insufficient cyclin-dependent kinase inhibitor 1B (CDKN1B, also known as p27Kip1) and CDKN1C (p57Kip2) proteins are characteristics of high-risk HCC. In two HCC-derived cell lines with distinct genetic backgrounds, we identified a small natural compound, goniothalamin (GTN), serving as an inducer of CKIs. In TP53-mutated (Y220C) and retinoblastoma 1 (RB1)-positive Huh-7 cells, GTN stabilized CDKN1B protein levels by targeting the degradation of its specific E3 ubiquitin ligase (S-phase kinase-associated protein 2). Alternatively, in TP53- and RB1-negative Hep-3B cells, GTN increased CDKN1C transcription and its subsequent translation by acting as a histone deacetylase inhibitor. In both cell lines, GTN induced G0/G1 cell cycle arrest, delayed S phase entry of cells and inhibited anchorage-independent cell growth which might be attributed to the upregulation of CKIs and downregulation of several positive cell cycle regulators, including CDC28 protein kinase regulator subunit 1B, cyclin E1 and D1, cyclin-dependent kinase 2 (CDK2), CDK4, CDK6, E2F transcription factor 1 and/or transcription factor Dp-1. Therefore, GTN might represent a novel class of anticancer drug that induces CKIs through post-translational and epigenetic modifications.
Collapse
Affiliation(s)
- Yu-Ting Peng
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Wen-Ren Wu
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Lih-Ren Chen
- Division of Physiology, Livestock Research Institute, Council of Agriculture, Executive Yuan, Taiwan.,Institute of Biotechnology, National Cheng Kung University, Tainan, Taiwan.,Institute of Biotechnology, Southern Taiwan University of Technology, Tainan, Taiwan
| | - Kung-Kai Kuo
- Department of Surgery, Chung-Ho Memorial Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Cheng-Hui Tsai
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Yu-Ting Huang
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Yu-Hsuan Lan
- School of Pharmacy, China Medical University, Taichung, Taiwan
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yang-Chang Wu
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Yow-Ling Shiue
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan.,Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan.,Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University, Kaohsiung, Taiwan
| |
Collapse
|
21
|
Liou JR, Wu TY, Thang TD, Hwang TL, Wu CC, Cheng YB, Chiang MY, Lan YH, El-Shazly M, Wu SL, Beerhues L, Yuan SS, Hou MF, Chen SL, Chang FR, Wu YC. Bioactive 6S-styryllactone constituents of Polyalthia parviflora. J Nat Prod 2014; 77:2626-32. [PMID: 25419616 DOI: 10.1021/np5004577] [Citation(s) in RCA: 18] [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] [Indexed: 05/23/2023]
Abstract
Parvistones A-E (1-5), five new styryllactones possessing a rare α,β-lactone moiety and a 6S configuration, were isolated from a methanolic extract of Polyalthia parviflora leaves. The structures and the absolute configuration of the isolates were elucidated using NMR spectroscopy, specific rotation, circular dichroism, and X-ray single-crystal analysis. Compounds 8, 9, 11, and 12 were isolated for the first time. The results were supported by comparing the data measured to those of 6R-styryllactones. Moreover, a plausible biogenetic pathway of the isolated compounds was proposed. The structure-activity relationship of the compounds in an in vitro anti-inflammatory assay revealed the 6S-styryllactones to be more potent than the 6R derivatives. However, the effect was opposite regarding their cytotoxic activity. In addition, 6S-styrylpyrones isolated showed more potent anti-inflammatory and cytotoxic activity when compared to the 1S-phenylpyranopyrones obtained.
Collapse
Affiliation(s)
- Jing-Ru Liou
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University , Kaohsiung 807, Taiwan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Chen IH, Du YC, Hwang TL, Chen IF, Lan YH, Yen HF, Chang FR, Wu YC. Anti-inflammatory triterpenoids from the stems of Microtropis fokienensis. Molecules 2014; 19:4608-23. [PMID: 24736870 PMCID: PMC6271155 DOI: 10.3390/molecules19044608] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [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: 03/03/2014] [Revised: 04/09/2014] [Accepted: 04/09/2014] [Indexed: 11/16/2022] Open
Abstract
Three new ursane- and four new oleanane- type triterpenoids 1-7 were isolated, along with six known compounds 8-13, from the methanolic extract of Microtropis fokienensis. All structures were elucidated by mass and NMR spectroscopic methods. The isolates 4-10 and known compounds 14-17 that were previously isolated from this material were evaluated for anti-inflammatory activity based on effects against superoxide anion generation and elastase release by neutrophils in response to fMLP/CB. 11α,30-Dihydroxy-2,3-seco-olean-12-en-2,3-dioic anhydride (7) was the first triterpene anhydride from the genus of Microtropis to have the ring A expanded to a seven-membered ring; it showed significant anti-inflammatory activity against superoxide anion generation and elastase release. Unexpectedly, 30-hydroxy-2,3-seco-lup-20(29)-ene-2,3-dioic acid (17) showed the best effect against superoxide anion generation and elastase release with IC50 values of 0.06±0.01 and 1.03±0.35 µg/mL, respectively. Compound 17 had a dioic acid function, and compound 7 had an anhydride function modification in ring A; both showed promising activity in the target assays.
Collapse
Affiliation(s)
- I-Hsiao Chen
- School of Chinese Medicine for Post Baccalaureate, College of Medicine, I Shou University, Kaohsiung 82445, Taiwan.
| | - Ying-Chi Du
- Department of Botanicals, Medical and Pharmaceutical Industry Technology and Development Center, New Taipei City 248, Taiwan.
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan.
| | - I-Fen Chen
- Department of Biomedical Engineering, College of Medicine, I Shou University, Kaohsiung 82445, Taiwan.
| | - Yu-Hsuan Lan
- School of Pharmacy, College of Pharmacy, China Medical University, Taichung 404, Taiwan.
| | - Hsin-Fu Yen
- National Museum of Natural Science, Taichung 404, Taiwan.
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Yang-Chang Wu
- School of Pharmacy, College of Pharmacy, China Medical University, Taichung 404, Taiwan.
| |
Collapse
|
23
|
Lin YT, Huang AC, Kuo CL, Yang JS, Lan YH, Yu CC, Huang WW, Chung JG. Induction of cell cycle arrest and apoptosis in human osteosarcoma U-2 OS cells by Solanum lyratum extracts. Nutr Cancer 2013; 65:469-79. [PMID: 23530647 DOI: 10.1080/01635581.2013.757627] [Citation(s) in RCA: 9] [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] [Indexed: 10/27/2022]
Abstract
This research focused on a Chinese herb medicine, Solanum lyratum Thunb (Solanaceae) by ethanol extracts (SLE) for investigating the molecular anticancer mechanism in vitro for exploring the means of cell death through the effects on mitochondrial function. We found that SLE induced cytotoxic effects in human osteosacroma U-2 OS cells, and these effects include cell morphological changes, a decrease of the percentage of viable cells and induction of apoptosis. The results suggest that cell death induced by SLE is closely related to apoptosis based on the observations of DAPI staining and sub-G1 phase in U-2 OS cells. Flow cytometric assays also showed that SLE promoted the production of reactive oxygen species and nitric oxide but decreased the levels of mitochondrial membrane potential and promoted the activations of caspase-8 and -9 in U-2 OS cells. SLE inhibited the level of Bcl-2 but promoted the Bax level, and both proteins led to the release of cytochrome c from mitochondria to cytosol and activation of caspase-9 and -3, resulting in the apoptotic death which is mediated through the mitochondrial pathway. Taken together, SLE was demonstrated to be effective in killing U-2 OS osteosacroma cells via the ROS-promoted and mitochondria- and caspase-dependent apoptotic pathways.
Collapse
Affiliation(s)
- Yi-Ting Lin
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | | | | | | | | | | | | | | |
Collapse
|
24
|
Ting WC, Chen LM, Huang LC, Hour MJ, Lan YH, Lee HZ, You BJ, Chang TY, Bao BY. Impact of interleukin-10 gene polymorphisms on survival in patients with colorectal cancer. J Korean Med Sci 2013; 28:1302-6. [PMID: 24015034 PMCID: PMC3763103 DOI: 10.3346/jkms.2013.28.9.1302] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Accepted: 06/18/2013] [Indexed: 11/20/2022] Open
Abstract
Chronic inflammation is thought to be the leading cause of colorectal cancer, and interleukin-10 (IL10) has been identified as a potent immunomodulatory cytokine that regulates inflammatory responses in the gastrointestinal tract. Although several single nucleotide polymorphisms (SNPs) in IL10 have been associated with the risk of colorectal cancer, their prognostic significance has not been determined. Two hundred and eighty-two colorectal cancer patients were genotyped for two candidate cancer-associated SNPs in IL10. The associations of these SNPs with distant metastasis-free survival and overall survival were evaluated by Kaplan-Meier analysis and Cox regression model. The minor homozygote GG genotype of IL10 rs3021094 was significantly associated with a 3.30-fold higher risk of death compared with the TT+TG genotypes (P=0.011). The patients with IL10 rs3021094 GG genotype also had a poorer overall survival in Kaplan-Meier analysis (log-rank P=0.007) and in multivariate Cox regression model (P=0.044) adjusting for age, gender, carcinoembryonic antigen levels, tumor differentiation, stage, lymphovascular invasion, and perineural invasion. In conclusion, our results suggest that IL10 rs3021094 might be a valuable prognostic biomarker for colorectal cancer patients.
Collapse
Affiliation(s)
- Wen-Chien Ting
- Department of Colorectal Surgery, China Medical University Hospital, Taichung, Taiwan
- Division of Colorectal Surgery, Department of Surgery, Chung Shan Medical University Hospital, Taichung, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Lu-Min Chen
- Department of Obstetrics and Gynecology, China Medical University Hospital, Taichung, Taiwan
| | - Li-Chia Huang
- Department of Obstetrics and Gynecology, China Medical University Hospital, Taichung, Taiwan
| | - Mann-Jen Hour
- Department of Pharmacy, China Medical University, Taichung, Taiwan
| | - Yu-Hsuan Lan
- Department of Pharmacy, China Medical University, Taichung, Taiwan
| | - Hong-Zin Lee
- Department of Pharmacy, China Medical University, Taichung, Taiwan
| | - Bang-Jau You
- Department of Chinese Medicine Resources, China Medical University, Taichung, Taiwan
| | - Ta-Yuan Chang
- Department of Occupational Safety and Health, China Medical University, Taichung, Taiwan
| | - Bo-Ying Bao
- Department of Pharmacy, China Medical University, Taichung, Taiwan
- Sex Hormone Research Center, China Medical University Hospital, Taichung, Taiwan
| |
Collapse
|
25
|
Ting WC, Chen LM, Pao JB, Yang YP, You BJ, Chang TY, Lan YH, Lee HZ, Bao BY. Genetic polymorphisms of matrix metalloproteinases and clinical outcomes in colorectal cancer patients. Int J Med Sci 2013; 10:1022-7. [PMID: 23801889 PMCID: PMC3691801 DOI: 10.7150/ijms.6686] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 06/05/2013] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Colorectal cancer metastasis is a multistep process involving degradation of extracellular matrix components by proteolytic enzymes. Among them, matrix metalloproteinases (MMPs) are the principal degrading enzymes and their expressions/activities are also correlated with survival. Much research has showed the associations between genetic polymorphisms in MMPs and risk of colorectal cancer; however, their prognostic significance has not been well determined. METHODS We selected and genotyped 4 cancer-associated single nucleotide polymorphisms (SNPs) in a cohort of 282 colorectal cancer patients. The associations of these SNPs with distant metastasis-free survival and overall survival were evaluated by Kaplan-Meier analysis, Cox regression model, and survival tree analysis. RESULTS The relative risks of developing distant metastasis after curative surgery were higher in individuals with minor homozygote AA genotype than in those with GG/GA genotypes at MMP2 rs243866 (P = 0.012). Survival tree analysis also identified a higher-order genetic interaction profile consisting of MMP2 rs243866 and MMP2 rs2285053 that was significantly associated with distant metastasis-free survival (P trend = 0.016). After adjusting for possible confounders, the genetic interaction profile remained significant (P trend = 0.050). CONCLUSIONS These results suggest that genetic variations in the MMP2 might be potential predictors of distant metastasis-free survival after curative surgery.
Collapse
Affiliation(s)
- Wen-Chien Ting
- Department of Colorectal Surgery, China Medical University Hospital, Taichung, Taiwan
| | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Wu YC, Sureshbabu M, Fang YC, Wu YH, Lan YH, Chang FR, Chang YW, Hwang TL. Potent inhibition of human neutrophil activations by bractelactone, a novel chalcone from Fissistigma bracteolatum. Toxicol Appl Pharmacol 2012. [PMID: 23201462 DOI: 10.1016/j.taap.2012.11.021] [Citation(s) in RCA: 17] [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: 11/16/2022]
Abstract
Fissistigma bracteolatum is widely used in traditional medicine to treat inflammatory diseases. However, its active components and mechanisms of action remain unclear. In this study, (3Z)-6,7-dihydroxy-4-methoxy-3-(phenylmethylidene)-5-(3-phenylpropanoyl)-1-benzofuran-2(3H) (bractelactone), a novel chalcone from F. bracteolatum, showed potent inhibitory effects against superoxide anion (O₂·⁻) production, elastase release, and CD11b expression in formyl-L-methionyl-L-leucyl-L-phenylalanine (FMLP)-induced human neutrophils. However, bractelactone showed only weak inhibition of phorbol myristate acetate-caused O₂·⁻ production. The peak cytosolic calcium concentration ([Ca²⁺](i)) was unaltered by bractelactone in FMLP-induced neutrophils, but the decay time of [Ca²⁺](i) was significantly shortened. In a calcium-free solution, changes in [Ca²⁺](i) caused by the addition of extracellular Ca²⁺ were inhibited by bractelactone in FMLP-activated cells. In addition, bractelactone did not alter the phosphorylation of p38 MAPK, ERK, JNK, or AKT or the concentration of cAMP. These results suggest that bractelactone selectively inhibits store-operated calcium entry (SOCE). In agreement with this concept, bractelactone suppressed sustained [Ca²⁺](i) changes in thapsigargin-activated neutrophils. Furthermore, bractelactone did not alter FMLP-induced formation of inositol 1,4,5-triphosphate. Taken together, our results demonstrate that the anti-inflammatory effects of bractelactone, an active ingredient of F. bracteolatum, in human neutrophils are through the selective inhibition of SOCE.
Collapse
Affiliation(s)
- Yang-Chang Wu
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | | | | | | | | | | | | | | |
Collapse
|
27
|
Lan YH, Peng YT, Thang TD, Hwang TL, Dai DN, Leu YL, Lai WC, Wu YC. New Flavan and Benzil Isolated from Fissistigma latifolium. Chem Pharm Bull (Tokyo) 2012; 60:280-2. [DOI: 10.1248/cpb.60.280] [Citation(s) in RCA: 8] [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: 11/22/2022]
Affiliation(s)
| | | | | | | | - Do-Ngoc Dai
- Institute of Ecology and Biologycal Resources, Vietnam Academy of Science and Technology
| | - Yann-Lii Leu
- Graduate Institute of Natural Products, Chang Gung University
| | - Wan-Chun Lai
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University
| | - Yang-Chang Wu
- Graduate Institute of Integrated Medicine, China Medical University
| |
Collapse
|
28
|
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.
Collapse
Affiliation(s)
- Jiunn-Bey Pao
- Department of Pharmacy, Yangming Branch, Taipei City Hospital, Taipei, Taiwan
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Abstract
Two novel chalconoids, [3-3'']bi-2-hydroxy-4,5,6-trimethoxydihydrochalcone (1) and 4,6-dimethoxy-2,5-quinodihydrochalcone (2), and twelve known compounds were isolated from the methanolic extract of Fissistigma latifolium (Dun.) Merr. The structures of all compounds were determined by spectroscopic methods. Of these, compounds 1, 2, and 2-hydroxy-4,5,6-trimethoxydihydrochalcone (10) belong to an uncommon group of chalconoids, the retrochalcones. Compound 1 is the first bis-retrochalcone to be reported, and compound 2 is a quinoretrochalcone. Furthermore, 2 showed activity against the MDA-MB-231 human breast cancer cell line with an IC (50) value of 7.1 µM.
Collapse
Affiliation(s)
- Yu-Hsuan Lan
- School of Pharmacy, China Medical University, Taichung, Taiwan.
| | | | | | | | | | | |
Collapse
|
30
|
Kuo KK, Chen YL, Chen LR, Li CF, Lan YH, Chang FR, Wu YC, Shiue YL. Involvement of phorbol-12-myristate-13-acetate-induced protein 1 in goniothalamin-induced TP53-dependent and -independent apoptosis in hepatocellular carcinoma-derived cells. Toxicol Appl Pharmacol 2011; 256:8-23. [DOI: 10.1016/j.taap.2011.07.002] [Citation(s) in RCA: 20] [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: 04/29/2011] [Revised: 07/03/2011] [Accepted: 07/06/2011] [Indexed: 01/09/2023]
|
31
|
Bao BY, Pao JB, Huang CN, Pu YS, Chang TY, Lan YH, Lu TL, Lee HZ, Chen LM, Ting WC, Hsieh CJ, Huang SP. Significant associations of prostate cancer susceptibility variants with survival in patients treated with androgen-deprivation therapy. Int J Cancer 2011; 130:876-84. [PMID: 21445969 DOI: 10.1002/ijc.26091] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2010] [Accepted: 03/11/2011] [Indexed: 11/10/2022]
Abstract
Androgen-deprivation therapy (ADT) is the most common therapy for advanced prostate cancer, but the prognosis significantly differs among individuals. In this study, we evaluated recently identified 19 prostate cancer susceptibility variants as prognostic predictors for the survival after ADT. A total of 601 prostate cancer patients treated with ADT were enrolled in this study cohort. The prognostic significance of the prostate cancer risk variants 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. Two polymorphisms, rs16901979 and rs7931342, were significantly associated with PCSM (p = 0.005 for rs16901979 and p = 0.038 for rs7931342), and rs16901979 was also associated with ACM (p = 0.003) following ADT. Although the effect of rs7931342 was attenuated after controlling for other known clinical prognostic factors, rs16901979 remained a significant predictor for PCSM and ACM after ADT (p = 0.002). Moreover, the addition of the rs16901979 status in current clinical staging system further enhanced the risk prediction on PCSM and ACM particularly for the high-risk patients with distant metastasis (p < 0.017). In conclusion, this is the first study showing that prostate cancer risk variants, such as rs16901979, might improve outcome prediction following ADT, thus allowing identification of high-risk patients who might benefit from appropriate adjuvant therapy.
Collapse
Affiliation(s)
- Bo-Ying Bao
- Department of Pharmacy, China Medical University, Taichung, Taiwan
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
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.
Collapse
Affiliation(s)
- Bo-Ying Bao
- Department of Pharmacy, China Medical University, Taichung, Taiwan
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Lan YH, Wu YC, Wu KW, Chung JG, Lu CC, Chen YL, Wu TS, Yang JS. Death receptor 5-mediated TNFR family signaling pathways modulate γ-humulene-induced apoptosis in human colorectal cancer HT29 cells. Oncol Rep 2010; 25:419-24. [PMID: 21152878 DOI: 10.3892/or.2010.1087] [Citation(s) in RCA: 9] [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: 08/16/2010] [Accepted: 10/22/2010] [Indexed: 11/06/2022] Open
Abstract
A component from Emilia sonchifolia (L.) DC, γ-humulene, was investigated. Significantly decreased cell viability of human colorectal cancer HT29 cells in a dose-dependent manner with IC50 53.67±2.99 μM for 24-h treatment was found. γ-Humulene induced apoptotic cell death and apoptosis was confirmed by morphological assessment. The staining with propidium iodide (PI) and flow cytometric analysis also showed that γ-humulene significantly promoted the sub-G1 phase (an apoptotic population) in HT29 cells. Colorimetric assays indicated that pretreatment with a specific inhibitor of caspase-8 (Z-IETD-FMK) significantly reduced activities of caspase-8 and caspase-3 in examined HT29 cells. γ-Humulene stimulated the death receptor 5 (DR5), DR4, Fas-associated protein with death domain (FADD), the cleavage of caspase-8 and cleavage caspase-3, but reduced the protein levels of cellular Fas-associated death-domain-like IL-1ß-converting enzyme inhibitory protein (c-FLIP) by Western blot analysis. Consequently, γ-humulene-triggered cell death was significantly attenuated by DR5 siRNA and the caspase-8 inhibitor. Based on our results, we suggest that γ-humulene induced apoptotic cell death in HT29 cells through a DR5-mediated caspase-8 and -3-dependent signaling pathway. Therefore, this agent might be useful for developing new therapeutic regimens for treatment of colorectal cancer in the future.
Collapse
Affiliation(s)
- Yu-Hsuan Lan
- School of Pharmacy, Department of Pharmacology, China Medical University, Taichung 404, Taiwan, ROC
| | | | | | | | | | | | | | | |
Collapse
|
34
|
Chen NG, Chen KT, Lu CC, Lan YH, Lai CH, Chung YT, Yang JS, Lin YC. Allyl isothiocyanate triggers G2/M phase arrest and apoptosis in human brain malignant glioma GBM 8401 cells through a mitochondria-dependent pathway. Oncol Rep 2010; 24:449-55. [PMID: 20596632 DOI: 10.3892/or_00000878] [Citation(s) in RCA: 15] [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] [Indexed: 11/06/2022] Open
Abstract
Isothiocyanates (ITCs) are present as glucosinolates in various cruciferous vegetables. Allyl isothiocyanate (AITC) is one of the common naturally occurring isothiocyanates. Recent studies have shown that AITC significantly inhibited survival of leukemia HL-60, bladder cancer UM-UC-3 and colon cancer HT-29 cells in vitro. In this study, we demonstrate that AITC significantly decreased proliferation and viability of human brain malignant glioma GBM 8401 cells in a dose-dependent manner with IC50 9.25+/-0.69 microM for 24 h-treatment. The analysis of cell cycle distribution also showed that AITC induced significantly G2/M arrest and sub-G1 phase (apoptotic population) in GBM 8401 cells. AITC markedly reduced the CDK1/cyclin B activity and protein levels by CDK1 activity assay and Western blot analysis. AITC-induced apoptotic cell death and this evidence was confirmed by morphological assessment and DAPI staining. Pretreatment with specific inhibitors of caspase-3 (Z-DEVE-FMK) and -9 (Z-LEHD-FMK) significantly reduced caspase-3 and -9 activity in GBM 8401 cells. Western blot analysis and colorimetric assays also displayed that AITC caused a time-dependent increase in cytosolic cytochrome c, pro-caspase-9, Apaf-1, AIF, Endo G and the stimulated caspase-9 and -3 activity. Our results suggest that AITC is a potent anti-human brain malignant glioma drug and it shows a remarkable action on cell cycle arrest before commitment for apoptosis is reached.
Collapse
Affiliation(s)
- Nian-Gu Chen
- Department of Veterinary Medicine, National Chung Hsing University, Taichung 402, Taiwan
| | | | | | | | | | | | | | | |
Collapse
|
35
|
Huang SP, Lan YH, Lu TL, Pao JB, Chang TY, Lee HZ, Yang WH, Hsieh CJ, Chen LM, Huang LC, Ting WC, Bao BY. Clinical significance of runt-related transcription factor 1 polymorphism in prostate cancer. BJU Int 2010; 107:486-92. [PMID: 20735389 DOI: 10.1111/j.1464-410x.2010.09512.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To investigate the association of RUNX1 rs2253319 with clinicopathological characteristics of prostate cancer (PCa) and disease recurrence after radical prostatectomy (RP). PATIENTS AND METHODS Taking advantage of the systematic stage and grade for each tumor in a cohort of 314 patients with localized PCa receiving RP, we evaluated the associations of RUNX1 rs2253319 with age at diagnosis, preoperative prostate-specific antigen (PSA) level, Gleason score, surgical margin, pathologic stage, status of lymph node metastasis, and PSA recurrence after RP. RESULTS The minor allele, T, and the minor homozygote TT genotype of RUNX1 rs2253319 were significantly associated with a 1.49- to 2.76-fold higher risk for advanced pathologic stage and a 3.35- to 9.52-fold higher risk for lymph node metastasis. RUNX1 rs2253319 TT genotype was also associated with poorer PSA-free survival compared with the major homozygote CC genotype in Kaplan-Meier analysis (log-rank test, P= 0.038) and multivariate Cox proportional hazards model adjusting for age and PSA concentration (P= 0.045). CONCLUSION RUNX1 rs2253319 is associated with adverse clinicopathological features and might be a prognostic factor for the recurrence of PSA in patients with PCa receiving RP.
Collapse
Affiliation(s)
- Shu-Pin Huang
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung, China
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Bao BY, Lin VC, Huang SH, Pao JB, Chang TY, Lu TL, Lan YH, Chen LM, Ting WC, Yang WH, Hsieh CJ, Huang SP. Clinical significance of tumor necrosis factor receptor superfamily member 11b polymorphism in prostate cancer. Ann Surg Oncol 2010; 17:1675-81. [PMID: 20204532 DOI: 10.1245/s10434-010-0994-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2009] [Indexed: 11/18/2022]
Abstract
BACKGROUND Bone metastases are the most critical complication of prostate cancer (PCa), resulting in severe morbidity and mortality. Tumor necrosis factor receptor superfamily member 11b (TNFRSF11B) is a critical regulator between PCa cells and the bone environment. Recently, TNFRSF11B rs10505346 has been implicated in PCa risk in the Cancer Genetic Markers of Susceptibility genomewide association study. However, the association between this variant and biochemical failure in PCa patients receiving radical prostatectomy (RP) has not been determined. METHODS Associations of TNFRSF11B rs10505346 with age at diagnosis, preoperative prostate-specific antigen (PSA) level, Gleason score, pathologic stage, surgical margin, and PSA recurrence were evaluated in a cohort of 314 localized PCa patients receiving RP. The prognostic significance on PSA recurrence was assessed by Kaplan-Meier analysis and Cox regression model. RESULTS The mean level of preoperative PSA and the relative risks of PSA recurrence after RP were lower in individuals with T allele than in those with the G allele at TNFRSF11B rs10505346 (P = 0.019 and 0.014, respectively). The T allele of rs10505346 remained a protective factor against PSA recurrence (P = 0.022) in multivariate Cox regression model after considering all clinicopathological risk factors except PSA level. CONCLUSIONS Our data suggest that TNFRSF11B rs10505346 is associated with PSA level and might be a prognostic factor for the recurrence of PSA in PCa patients receiving RP.
Collapse
Affiliation(s)
- Bo-Ying Bao
- Department of Pharmacy, China Medical University, Taichung, Taiwan
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Yen CY, Chiu CC, Chang FR, Chen JYF, Hwang CC, Hseu YC, Yang HL, Lee AYL, Tsai MT, Guo ZL, Cheng YS, Liu YC, Lan YH, Chang YC, Ko YC, Chang HW, Wu YC. 4beta-Hydroxywithanolide E from Physalis peruviana (golden berry) inhibits growth of human lung cancer cells through DNA damage, apoptosis and G2/M arrest. BMC Cancer 2010; 10:46. [PMID: 20167063 PMCID: PMC2830937 DOI: 10.1186/1471-2407-10-46] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2009] [Accepted: 02/18/2010] [Indexed: 12/29/2022] Open
Abstract
Background The crude extract of the fruit bearing plant, Physalis peruviana (golden berry), demonstrated anti-hepatoma and anti-inflammatory activities. However, the cellular mechanism involved in this process is still unknown. Methods Herein, we isolated the main pure compound, 4β-Hydroxywithanolide (4βHWE) derived from golden berries, and investigated its antiproliferative effect on a human lung cancer cell line (H1299) using survival, cell cycle, and apoptosis analyses. An alkaline comet-nuclear extract (NE) assay was used to evaluate the DNA damage due to the drug. Results It was shown that DNA damage was significantly induced by 1, 5, and 10 μg/mL 4βHWE for 2 h in a dose-dependent manner (p < 0.005). A trypan blue exclusion assay showed that the proliferation of cells was inhibited by 4βHWE in both dose- and time-dependent manners (p < 0.05 and 0.001 for 24 and 48 h, respectively). The half maximal inhibitory concentrations (IC50) of 4βHWE in H1299 cells for 24 and 48 h were 0.6 and 0.71 μg/mL, respectively, suggesting it could be a potential therapeutic agent against lung cancer. In a flow cytometric analysis, 4βHWE produced cell cycle perturbation in the form of sub-G1 accumulation and slight arrest at the G2/M phase with 1 μg/mL for 12 and 24 h, respectively. Using flow cytometric and annexin V/propidium iodide immunofluorescence double-staining techniques, these phenomena were proven to be apoptosis and complete G2/M arrest for H1299 cells treated with 5 μg/mL for 24 h. Conclusions In this study, we demonstrated that golden berry-derived 4βHWE is a potential DNA-damaging and chemotherapeutic agent against lung cancer.
Collapse
Affiliation(s)
- Ching-Yu Yen
- Department of Oral and Maxillofacial Surgery, Chi-Mei Medical Center, Tainan, Taiwan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Huang SP, Huang LC, Ting WC, Chen LM, Chang TY, Lu TL, Lan YH, Liu CC, Yang WH, Lee HZ, Hsieh CJ, Bao BY. Prognostic significance of prostate cancer susceptibility variants on prostate-specific antigen recurrence after radical prostatectomy. Cancer Epidemiol Biomarkers Prev 2010; 18:3068-74. [PMID: 19900942 DOI: 10.1158/1055-9965.epi-09-0665] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Recent genomewide association studies have identified several prostate cancer susceptibility variants. However, the association between these variants and biochemical failure in prostate cancer patients receiving radical prostatectomy has not been determined. We systematically evaluated 20 prostate cancer-associated single-nucleotide polymorphisms in a cohort of 320 localized prostate cancer patients receiving radical prostatectomy. Each single-nucleotide polymorphism found to be associated with the recurrence of prostate-specific antigen was further analyzed by Kaplan-Meier analysis and Cox regression model. Three prostate cancer susceptibility single-nucleotide polymorphisms (rs1447295 at 8q24, rs7920517 and rs10993994 at 10q11) were associated with prostate-specific antigen recurrence (P < 0.02). Of these, rs7920517 and rs10993994, which were in strong linkage disequilibrium (r(2) = 0.91), also showed significant associations with poor prostate-specific antigen-free survival following radical prostatectomy (log-rank test; P < 0.01). The associations remained significant in our multivariate Cox proportional hazards analysis after adjusting for other clinicopathologic risk covariates (P < 0.01). In conclusion, loci associated with risk for prostate cancer, such as rs7920517 and rs10993994, might also be used to predict the recurrence of prostate-specific antigen in prostate cancer patients receiving radical prostatectomy.
Collapse
Affiliation(s)
- Shu-Pin Huang
- Department of Pharmacy, China Medical University, Taichung, Taiwan
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
|
40
|
Hwang TL, Li GL, Lan YH, Chia YC, Hsieh PW, Wu YH, Wu YC. Potent inhibition of superoxide anion production in activated human neutrophils by isopedicin, a bioactive component of the Chinese medicinal herb Fissistigma oldhamii. Free Radic Biol Med 2009; 46:520-8. [PMID: 19100830 DOI: 10.1016/j.freeradbiomed.2008.11.014] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2008] [Revised: 10/23/2008] [Accepted: 11/18/2008] [Indexed: 01/15/2023]
Abstract
Fissistigma oldhamii is widely used in traditional Chinese medicine to treat rheumatoid arthritis. Activation of neutrophils is a key feature of inflammatory diseases. Herein, the anti-inflammatory functions of isopedicin, a flavanone derived from F. oldhamii, and its underlying mechanisms were investigated in human neutrophils. Isopedicin potently and concentration-dependently inhibited superoxide anion (O(2)(*)(-)) production in formyl-L-methionyl-L-leucyl-L-phenylalanine (FMLP)-activated human neutrophils with an IC(50) value of 0.34+/-0.03 microM. Furthermore, isopedicin displayed no superoxide-scavenging ability, and it failed to alter subcellular NADPH oxidase activity. The inhibitory effect of isopedicin on O(2)(*)(-) production was reversed by protein kinase A (PKA) inhibitors. Moreover, isopedicin increased cAMP formation and PKA activity in FMLP-activated human neutrophils, which occurred through the inhibition of phosphodiesterase (PDE) activity but not an increase in adenylate cyclase function. In addition, isopedicin reduced FMLP-induced phosphorylation of extracellular regulated kinase and c-Jun N-terminal kinase, which was reversed by the PKA inhibitor. In contrast, isopedicin failed to alter FMLP-induced phosphorylation of p38 mitogen-activated protein kinase and calcium mobilization. In summary, these results demonstrate that inhibition of O(2)(*)(-) production in human neutrophils by isopedicin is associated with an elevation of cellular cAMP and activation of PKA through its inhibition of cAMP-specific PDE.
Collapse
Affiliation(s)
- Tsong-Long Hwang
- Graduate Institute of Natural Products, Chang Gung University, Taoyuan, Taiwan.
| | | | | | | | | | | | | |
Collapse
|
41
|
Yen CT, Hsieh PW, Hwang TL, Lan YH, Chang FR, Wu YC. Flavonol Glycosides from Muehlenbeckia platyclada and Their Anti-inflammatory Activity. Chem Pharm Bull (Tokyo) 2009; 57:280-2. [DOI: 10.1248/cpb.57.280] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [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)
- Chiao-Ting Yen
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University
| | - Pei-Wen Hsieh
- Graduate Institute of Natural Products, Chang Gung University
| | | | | | - Fang-Rong Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University
- Center of Excellence for Environmental Medicine, Kaohsiung Medical University
| | - Yang-Chang Wu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University
- Center of Excellence for Environmental Medicine, Kaohsiung Medical University
- National Sun Yat-Sen University-Kaohsiung Medical University Joint Research Center
| |
Collapse
|
42
|
Chen YL, Lan YH, Hsieh PW, Wu CC, Chen SL, Yen CT, Chang FR, Hung WC, Wu YC. Bioactive cembrane diterpenoids of Anisomeles indica. J Nat Prod 2008; 71:1207-1212. [PMID: 18547115 DOI: 10.1021/np800147z] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Five new cembrane-type diterpenoids with a trans-fused alpha-methylene-gamma-lactone (1-5), a new flavonoid glucoside (6), and 17 known compounds were isolated from a methanol extract of Anisomeles indica. The structures of 1-6 were elucidated by spectroscopic analysis, and the absolute configuration of compound 1 was determined using the modified Mosher's method. Compound 8 (4,5-epoxovatodiolide) exhibited cytotoxicity against a small panel of human cancer cell lines. Additionally, compounds 4 and 7 (ovatodiolide) exhibited selective antiplatelet aggregation activities toward collagen, while compounds 4, 5, and 8 showed inhibitory effects on antiplatelet aggregation induced by thrombin.
Collapse
Affiliation(s)
- Yu-Li Chen
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Lee CL, Chang FR, Hsieh PW, Chiang MY, Wu CC, Huang ZY, Lan YH, Chen M, Lee KH, Yen HF, Hung WC, Wu YC. Cytotoxic ent-abietane diterpenes from Gelonium aequoreum. Phytochemistry 2008; 69:276-87. [PMID: 17714747 DOI: 10.1016/j.phytochem.2007.07.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2006] [Revised: 04/27/2007] [Accepted: 07/03/2007] [Indexed: 05/16/2023]
Abstract
Seventeen ent-abietane diterpenes, including gelomulides K-X (1-14), and three known compounds, were isolated from a dichloromethane-soluble extract of Gelonium aequoreum through bioassay-guided fractionation. Their structures were identified by spectroscopic methods, and stereochemistry was confirmed by X-ray crystallographic analysis, CD spectral data, and Mosher's method. The isolates were evaluated for in vitro cytotoxic activity, and compounds 1 and 3 showed moderate cytotoxicity against lung (A549), breast (MDA-MB-231 and MCF7), and liver (HepG2) cancer cell lines.
Collapse
Affiliation(s)
- Chia-Lin Lee
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Affiliation(s)
- Yu-Hsuan Lan
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University
| | - Hsin-Yu Wang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University
| | - Chin-Chung Wu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University
| | - Shu-Li Chen
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University
| | - Chao-Lin Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University
| | - Yang-Chang Wu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University
- National SunYat-Sen University-Kaohsiung Medical University Joint Research Center
| |
Collapse
|
45
|
Abstract
Two new compounds, goniothalesacetate (1) and goniothalesdiol A (2) together with goniodiol-7-monoacetate, goniodiol-8-monoacetate, leiocarpin C, liriodenine, griffithazanone A, 4-methyl-2,9,10-(2H)-1-azaanthracencetrione, velutinam and aristolactam BII were isolated and characterized from the stems of Goniothalamus amuyon. Structures of new compounds were determined by spectral analysis.
Collapse
Affiliation(s)
- Yu-Hsuan Lan
- Graduate Institute of Natural Products, Kaohsiung Medical University; Kaohsiung, 807 Taiwan
| | | | | | | |
Collapse
|
46
|
Chen WY, Wu CC, Lan YH, Chang FR, Teng CM, Wu YC. Goniothalamin induces cell cycle-specific apoptosis by modulating the redox status in MDA-MB-231 cells. Eur J Pharmacol 2005; 522:20-9. [PMID: 16202990 DOI: 10.1016/j.ejphar.2005.08.047] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.7] [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: 06/14/2005] [Revised: 08/16/2005] [Accepted: 08/26/2005] [Indexed: 10/25/2022]
Abstract
Goniothalamin, a natural occurring styryl-lactone, is a novel compound with putative anticancer activities. In the present study, the mechanism of action of goniothalamin was further investigated in human breast cancer MDA-MB-231 cells. Goniothalamin treatment of cells significantly induced cell cycle arrest at G(2)/M phase and apoptosis. By means of cell cycle synchronization, the G(2)/M phase cells proved to be the most sensitive fraction to goniothalamin-induced apoptosis. Cells treated with goniothalamin revealed an increase in intracellular reactive oxygen species and a decrease in intracellular free thiol contents. The disruption of intracellular redox balance caused by goniothalamin was associated an enhancement of cdc25C degradation. Furthermore, the antioxidant N-acetylcysteine and the glutathione synthesis inhibitor dl-buthionine-(S, R)-sulfoximine, inhibited and enhanced, respectively, the effects of goniothalamin on cell cycle arrest and apoptosis. Taken together, our result demonstrates for the first time that goniothalamin disrupts intracellular redox balance and induces cdc25C degradation, which in turn causes cell cycle arrest and cell death maximally at G(2)/M phase in MDA-MB-231 cells.
Collapse
Affiliation(s)
- Wen-Ying Chen
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung City, Taiwan
| | | | | | | | | | | |
Collapse
|
47
|
Lan YH, Chia YC, Chang FR, Hwang TL, Liaw CC, Wu YC. Potential Anti-Inflammatory Activities of Bractelactone and other Compounds Isolated fromFissistigma bracteolatum. Helv Chim Acta 2005. [DOI: 10.1002/hlca.200590068] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
48
|
Lan YH, Chang FR, Liaw CC, Wu CC, Chiang MY, Wu YC. Digoniodiol, deoxygoniopypyrone A, and goniofupyrone A: three new styryllactones from Goniothalamus amuyon. Planta Med 2005; 71:153-159. [PMID: 15729624 DOI: 10.1055/s-2005-837783] [Citation(s) in RCA: 32] [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: 05/24/2023]
Abstract
Three new styrylpyrone analogues, digoniodiol (2), deoxygoniopypyrone A (3), and goniofupyrone A (4), along with ten known styryllactones, were isolated from the aerial parts of Goniothalamus amuyon. Among these compounds, 2 is the first example of a bis-styrylpyrone. Compound 4 represents a new skeleton for styryllactones. All structures were established on the basis of spectroscopic data. The stereochemistry of 2 and 4 was determined by X-ray crystallographic analysis. The absolute configuration of 3 and 4 was further confirmed by Mosher ester derivatives. All styryllactones were subjected to cytotoxicity assays. Among them, goniothalamin, goniothalamin epoxide, and 8-chlorogoniodiol showed significant cytotoxicity against the HepG2 cancer cell line with IC50 in the range of 0.19 - 0.64 microg/mL, and moderate activity toward Hep3B, MDA-MB-231, and MCF-7 cancer cell lines.
Collapse
Affiliation(s)
- Yu-Hsuan Lan
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung, Taiwan
| | | | | | | | | | | |
Collapse
|
49
|
Chang FR, Wu CC, Hwang TL, Patnam R, Kuo RY, Wang WY, Lan YH, Wu YC. Effect of active synthetic 2-substituted quinazolinones on anti-platelet aggregation and the inhibition of superoxide anion generation by neutrophils. Arch Pharm Res 2003; 26:511-5. [PMID: 12934640 DOI: 10.1007/bf02976872] [Citation(s) in RCA: 7] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Quinazolinones, 2-substituted and 3-substituted, mainly synthesized by microwave irradiation, were subjected to anti-platelet aggregation and inhibition of superoxide anion generation assays. Interestingly, 2-phenyl-4-quinazolinone (4) exhibited significant inhibitory activities toward platelet aggregation and neutrophil activation, and it might therefore serve as a prototype lead compound.
Collapse
Affiliation(s)
- Fang-Rong Chang
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | | | | | | | | | | | | | | |
Collapse
|
50
|
Abstract
Two new styrylpyrones, (6R,7R,8R)-8-methoxygoniodiol (1) and (6R,7R,8R)-8-chlorogoniodiol (2), together with seven known styrylpyrones and eight other known compounds, were isolated from the leaves and/or stems of Goniothalamus amuyon. The structures of 1 and 2 were elucidated by spectral data interpretation, and the absolute stereochemistry of styrylpyrones in the diol and triol series was confirmed by X-ray crystallographic analysis and CD spectral data. Compound 2 demonstrated significant selective cytotoxicity toward the HONE-1 cancer cell line.
Collapse
Affiliation(s)
- Yu-Hsuan Lan
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan, Republic of China
| | | | | | | | | | | | | |
Collapse
|