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Jin J, Wang Y, Zheng D, Liang M, He Q. A Novel Identified Circular RNA, mmu_mmu_circRNA_0000309, Involves in Germacrone-Mediated Improvement of Diabetic Nephropathy Through Regulating Ferroptosis by Targeting miR-188-3p/GPX4 Signaling Axis. Antioxid Redox Signal 2022; 36:740-759. [PMID: 34913724 DOI: 10.1089/ars.2021.0063] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Aims: Diabetic nephropathy (DN) is characterized by microalbuminuria, mainly associated with pathological and morphological alterations of podocyte. New drug targeting podocyte injury is a promising approach for treating DN. The present study is aimed at developing new drug targeting podocyte injury for treating DN. Results: In this study, germacrone ameliorated kidney damage and inhibited podocyte apoptosis in a DN mouse model. Based on RNA-seq, mmu_mmu_circRNA_0000309, located in host gene vascular endothelial zinc finger 1 (Vezf1), showed a sharp decline in DN mice and a remarkable recovery in germacrone-challenged DN mice. mmu_circRNA_0000309 silence or miR-188-3p mimics abrogated the antiapoptosis and anti-injury effects of germacrone through aggravating mitochondria damage, and elevating reactive oxygen species and ferroptosis-related protein levels. Mechanistically, mmu_circRNA_0000309 competitively sponged miR-188-3p, and subsequently promoted glutathione peroxidase 4 (GPX4) expression, thereby inactivating ferroptosis-dependent mitochondrial damage and podocyte apoptosis. In addition, GPX4 overexpression neutralized mmu_circRNA_0000309 silence-mediated mitochondria damage and ferroptosis in germacrone-exposed MPC5 cells. Innovation: We describe the novel effect and mechanism of germacrone on treating DN, which is linked to ferroptosis for the first time. Conclusion: mmu_circRNA_0000309 silence mediates drug resistance to germacrone in DN mice. mmu_circRNA_0000309 sponges miR-188-3p, and subsequently upregulates GPX4 expression, inactivating ferroptosis-dependent mitochondrial function and podocyte apoptosis. Possibly germacrone-based treatment for DN can be further motivated by regulating mmu_circRNA_0000309/miR-188-3p/GPX4 signaling axis. Antioxid. Redox Signal. 36, 740-759.
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Affiliation(s)
- Juan Jin
- Department of Nephrology, Zhejiang Provincial People's Hospital and Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, People's Republic of China
| | - Yunguang Wang
- Department of Critical Care Medicine, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Danna Zheng
- Department of Nephrology, Zhejiang Provincial People's Hospital and Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, People's Republic of China
| | - Mingzhu Liang
- Department of Nephrology, Zhejiang Provincial People's Hospital and Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, People's Republic of China
| | - Qiang He
- Department of Nephrology, Zhejiang Provincial People's Hospital and Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, People's Republic of China
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Li ZY, Hao EW, DU ZC, Cao R, Chen F, Mo LY, Wu DY, Hou XT, Deng JG. [Research progress of Curcuma kwangsiensis root tubers and analysis of liver protection and anti-tumor mechanisms based on Q-markers]. Zhongguo Zhong Yao Za Zhi 2022; 47:1739-1753. [PMID: 35534245 DOI: 10.19540/j.cnki.cjcmm.20211220.203] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Curcuma kwangsiensis root tuber is a widely used genuine medicinal material in Guangxi, with the main active components of terpenoids and curcumins. It has the effects of promoting blood circulation to relieve pain, moving Qi to relieve depression, clearing heart and cooling blood, promoting gallbladder function and anti-icterus. Modern research has proved its functions in liver protection, anti-tumor, anti-oxidation, blood lipid reduction and immunosuppression. Considering the research progress of C. kwangsiensis root tubers and the core concept of quality marker(Q-marker), we predicted the Q-markers of C. kwangsiensis root tubers from plant phylogeny, chemical component specificity, traditional pharmacodynamic properties, new pharmacodynamic uses, chemical component measurability, processing methods, compatibility, and components migrating to blood. Curcumin, curcumol, curcumadiol, curcumenol, curdione, germacrone, and β-elemene may be the possible Q-markers. Based on the predicted Q-markers, the mechanisms of the liver-protecting and anti-tumor activities of C. kwangsiensis root tubers were analyzed. AKT1, IL6, EGFR, and STAT3 were identified as the key targets, and neuroactive ligand-receptor interaction signaling pathway, nitrogen metabolism pathway, cancer pathway, and hepatitis B pathway were the major involved pathways. This review provides a basis for the quality evaluation and product development of C. kwangsiensis root tubers and gives insights into the research on Chinese medicinal materials.
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Affiliation(s)
- Ze-Yu Li
- China-ASEAN Joint Laboratory for International Cooperation in Traditional Medicine Research, Guangxi University of Chinese Medicine Nanning 530200, China Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica Nanning 530200, China Guangxi Key Laboratory of Traditional Chinese Medicine Rheumatism Prescription Theory and Transformation Nanning 530200, China Guangxi Scientific Research Center of Traditional Chinese Medicine Nanning 530200, China
| | - Er-Wei Hao
- China-ASEAN Joint Laboratory for International Cooperation in Traditional Medicine Research, Guangxi University of Chinese Medicine Nanning 530200, China Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica Nanning 530200, China Guangxi Key Laboratory of Traditional Chinese Medicine Rheumatism Prescription Theory and Transformation Nanning 530200, China Guangxi Scientific Research Center of Traditional Chinese Medicine Nanning 530200, China
| | - Zheng-Cai DU
- China-ASEAN Joint Laboratory for International Cooperation in Traditional Medicine Research, Guangxi University of Chinese Medicine Nanning 530200, China Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica Nanning 530200, China Guangxi Key Laboratory of Traditional Chinese Medicine Rheumatism Prescription Theory and Transformation Nanning 530200, China Guangxi Scientific Research Center of Traditional Chinese Medicine Nanning 530200, China
| | - Rui Cao
- China-ASEAN Joint Laboratory for International Cooperation in Traditional Medicine Research, Guangxi University of Chinese Medicine Nanning 530200, China Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica Nanning 530200, China Guangxi Key Laboratory of Traditional Chinese Medicine Rheumatism Prescription Theory and Transformation Nanning 530200, China Guangxi Scientific Research Center of Traditional Chinese Medicine Nanning 530200, China
| | - Feng Chen
- China-ASEAN Joint Laboratory for International Cooperation in Traditional Medicine Research, Guangxi University of Chinese Medicine Nanning 530200, China Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica Nanning 530200, China Guangxi Key Laboratory of Traditional Chinese Medicine Rheumatism Prescription Theory and Transformation Nanning 530200, China Guangxi Scientific Research Center of Traditional Chinese Medicine Nanning 530200, China
| | - Liu-Ying Mo
- China-ASEAN Joint Laboratory for International Cooperation in Traditional Medicine Research, Guangxi University of Chinese Medicine Nanning 530200, China Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica Nanning 530200, China Guangxi Key Laboratory of Traditional Chinese Medicine Rheumatism Prescription Theory and Transformation Nanning 530200, China Guangxi Scientific Research Center of Traditional Chinese Medicine Nanning 530200, China
| | - Dong-Yang Wu
- China-ASEAN Joint Laboratory for International Cooperation in Traditional Medicine Research, Guangxi University of Chinese Medicine Nanning 530200, China Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica Nanning 530200, China Guangxi Key Laboratory of Traditional Chinese Medicine Rheumatism Prescription Theory and Transformation Nanning 530200, China Guangxi Scientific Research Center of Traditional Chinese Medicine Nanning 530200, China
| | - Xiao-Tao Hou
- China-ASEAN Joint Laboratory for International Cooperation in Traditional Medicine Research, Guangxi University of Chinese Medicine Nanning 530200, China Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica Nanning 530200, China Guangxi Key Laboratory of Traditional Chinese Medicine Rheumatism Prescription Theory and Transformation Nanning 530200, China Guangxi Scientific Research Center of Traditional Chinese Medicine Nanning 530200, China College of Pharmacy, Guangxi University of Chinese Medicine Nanning 530200, China
| | - Jia-Gang Deng
- China-ASEAN Joint Laboratory for International Cooperation in Traditional Medicine Research, Guangxi University of Chinese Medicine Nanning 530200, China Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica Nanning 530200, China Guangxi Key Laboratory of Traditional Chinese Medicine Rheumatism Prescription Theory and Transformation Nanning 530200, China Guangxi Scientific Research Center of Traditional Chinese Medicine Nanning 530200, China
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Wang Y, Feng F, He W, Sun L, He Q, Jin J. miR-188-3p abolishes germacrone-mediated podocyte protection in a mouse model of diabetic nephropathy in type I diabetes through triggering mitochondrial injury. Bioengineered 2022; 13:774-788. [PMID: 34847832 PMCID: PMC8805940 DOI: 10.1080/21655979.2021.2012919] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 11/27/2021] [Indexed: 12/17/2022] Open
Abstract
Mitochondrial injury-triggered podocyte apoptosis is a major risk factor for diabetic nephropathy (DN). However, the detailed relationship between mitochondrial homeostasis and podocyte apoptosis remains unclear. The present study aimed to explore the role and functional mechanism of germacrone in DN in type I diabetes (type I DN). A mouse model of type I DN was established by injecting streptozocin, and a podocyte injury model was constructed using high glucose (HG) induction. Histopathology was detected by hematoxylin and eosin and periodic acid-Schiff staining. Transmission electron microscopy and flow cytometry were used to evaluate the mitochondrial function. Germacrone simultaneously reduced blood glucose, 24 h proteinuria, and other nephrotic symptoms in a type 1 DN mouse model. Moreover, germacrone protected against mitochondrial damage, limited reactive oxygen species (ROS) accumulation, and restored glutathione peroxidase (GPX) activity and GPX4 protein expression, subsequently preventing podocyte apoptosis. Mechanistically, the increased miR-188-3p expression in type I DN mice was reversed in germacrone-challenged DN mice. HG induced miR-188-3p expression and the miR-188-3p antagonist abolished the HG-mediated increase in ROS. Notably, miR-188-3p was found to have a therapeutic effect against DN by aggravating mitochondrial damage and podocyte apoptosis. Germacrone alleviates DN progression in type I diabetes by limiting podocyte apoptosis, which was partly counteracted by miR-188-3p upregulation. The combination of germacrone and miR-188-3p antagonists is expected to be an effective therapeutic strategy for DN.Abbreviations DN: diabetic nephropathy; Type I DN: DN in Type I diabetes; STZ: streptozocin; ROS: reactive oxygen species; NcRNAs: non-coding RNAs; UTR: untranslated regions; NC: negative control; BUN: blood urea nitrogen; BUA: blood uric acid; Ucr: urine creatinine; Scr: serum creatinine; PAS: Periodic Acid-Schiff; IF: Immunofluorescence; FISH: Fluorescence in situ hybridization; TUG1: taurine upregulated gene 1; GPX: Glutathione Peroxidase; GPX4: glutathione peroxidase 4; EMT: epithelial-mesenchymal transition.
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Affiliation(s)
- Yunguang Wang
- Department of Critical Care Medicine, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, P. R. China
| | - Fangfang Feng
- Department of Critical Care Medicine, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, P. R. China
| | - Wenfang He
- Department of Nephrology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, P.R China
| | - Lifang Sun
- Department of Tuberculosis, Hangzhou Red Cross Hospital, Hangzhou, P.R China
- Department of Tuberculosis, Affiliated Hangzhou Chest Hospital, Zhejiang University School of Medicine, Hangzhou, P.R China
| | - Qiang He
- Department of Nephrology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, P.R China
| | - Juan Jin
- Department of Nephrology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, P.R China
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Li Z, Wang Z, Dong F, Shi W, Dai W, Zhao J, Li Q, Fang ZE, Ren L, Liu T, Wei Z, Mou W, Lin L, Yang Y, Xiao X, Ma L, Bai Z. Germacrone Attenuates Hepatic Stellate Cells Activation and Liver Fibrosis via Regulating Multiple Signaling Pathways. Front Pharmacol 2021; 12:745561. [PMID: 34675811 PMCID: PMC8523941 DOI: 10.3389/fphar.2021.745561] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 09/21/2021] [Indexed: 12/13/2022] Open
Abstract
Liver fibrosis is an abnormal proliferation of connective tissue in the liver caused by various pathogenic factors. Chronic liver injury leads to release of inflammatory cytokines and reactive oxygen species (ROS) from damaged hepatocytes, which activates hepatic stellate cells (HSCs) to secrete extracellular matrix proteins, thereby leading to fibrosis. Thus, inhibition of hepatocyte injury and HSC activation, and promotion of apoptosis of activated HSCs are important strategies for prevention of liver fibrosis. In this study, we showed that the germacrone (GER), the main component in the volatile oil of zedoary turmeric, inhibited hepatic fibrosis by regulating multiple signaling pathways. First, GER improved the cell survival rate by inhibiting the production of ROS after hepatocyte injury caused by acetaminophen (APAP). In addition, GER inhibited the activation of HSCs and expression of collagen I by blocking TGF-β/Smad pathway in LX-2 cells. However, when the concentration of GER was higher than 60 μM, it specifically induced HSCs apoptosis by promoting the expression and activation of apoptosis-related proteins, but it had no effect on hepatocytes. Importantly, GER significantly attenuated the methionine- and choline-deficient (MCD) diet-induced liver fibrosis by inhibiting liver injury and the activation of HSCs in vivo. In summary, GER can not only protect hepatocytes by reducing ROS release to avoid the liver injury-induced HSC activation, but also directly inhibit the activation and survival of HSCs by regulating TGF-β/Smad and apoptosis pathways. These results demonstrate that GER can be used as a potential therapeutic drug for the treatment of liver fibrosis.
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Affiliation(s)
- Zhiyong Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Zhilei Wang
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Fang Dong
- School of Public Health and Health Management, Shandong First Medical University and Shandong Academy of Medical Sciences, Shandong, China
| | - Wei Shi
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Wenzhang Dai
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Jing Zhao
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Qiang Li
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Zhi-E Fang
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Lutong Ren
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Tingting Liu
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Ziying Wei
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Wenqing Mou
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Li Lin
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yan Yang
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xiaohe Xiao
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China.,China Military Institute of Chinese Materia, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Li Ma
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Zhaofang Bai
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China.,China Military Institute of Chinese Materia, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
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Zhao Y, Cai J, Shi K, Li H, Du J, Hu D, Liu Z, Wang W. Germacrone induces lung cancer cell apoptosis and cell cycle arrest via the Akt/MDM2/p53 signaling pathway. Mol Med Rep 2021; 23:452. [PMID: 33880579 PMCID: PMC8072309 DOI: 10.3892/mmr.2021.12091] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 01/28/2021] [Indexed: 01/01/2023] Open
Abstract
Germacrone (GM) displays a wide range of antitumor, antioxidant and anti-inflammatory effects; however, to the best of our knowledge, the effects of GM on lung cancer cell apoptosis and cell cycle arrest have not been previously reported. The aim of the present study was to investigate discussed the effects of GM on the apoptosis and cycle arrest of lung cancer cells. Cell viability, proliferation and apoptosis were assessed by performing Cell Counting Kit-8, colony formation and TUNEL assays, respectively. Western blotting was performed to detect the expression levels of apoptosis-, cell cycle- and Akt/MDM2 proto-oncogene (MDM2)/p53 signaling pathway-related proteins. Compared with the control group, 50, 100 and 200 µM GM significantly inhibited lung cancer cell proliferation, but significantly induced cell apoptosis and G1/S cell cycle arrest. GM also significantly altered the expression levels of Akt/MDM2/p53 signaling pathway-related proteins compared with the control group. Administration of Akt activator SC79 significantly reversed GM-mediated antiproliferative, proapoptotic and pro-cell cycle arrest effects in lung cancer cells. Therefore, the results of the present study demonstrated that GM induced lung cancer cell apoptosis and cell cycle arrest via the Akt/MDM2/p53 signaling pathway.
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Affiliation(s)
- Yang Zhao
- Department of Cardiothoracic Surgery, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 211800, P.R. China
| | - Jie Cai
- Department of Infectious Diseases, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Kaihu Shi
- Department of Cardiothoracic Surgery, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 211800, P.R. China
| | - Hang Li
- Department of Cardiothoracic Surgery, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 211800, P.R. China
| | - Jin Du
- Department of Cardiothoracic Surgery, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 211800, P.R. China
| | - Dinghui Hu
- Department of Cardiothoracic Surgery, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 211800, P.R. China
| | - Zuntao Liu
- Department of Cardiothoracic Surgery, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 211800, P.R. China
| | - Wei Wang
- Department of Cardiothoracic Surgery, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 211800, P.R. China
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Liang JY, Yang YY, An Y, Shao YZ, He CY, Zhang J, Jia LY. Insecticidal and acetylcholine esterase inhibition activity of Rhododendron thymifolium essential oil and its main constituent against two stored product insects. J Environ Sci Health B 2021; 56:423-430. [PMID: 33678144 DOI: 10.1080/03601234.2021.1894888] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In this work, we investigated the bioactivities of the essential oil (EO) extracted from the Rhododendron thymifolium and its principal germacrone against Lasioderma serricorne and Tribolium castaneum. The EO was obtained by steam distillation. Germacrone was obtained by cryogenic crystallization. The bioactivity of EO and germacrone was tested via contact and repellent activity assays. The results showed that EO and germacrone possessed contact and repellent activities against two species of insects. EO exhibited obvious contact activity against the L. serricorn adults, larvae and T. castaneum larvae with LD50 values of 29.15 µg/adult, 42.73 µg/larva, 19.65 µg/larva respectively. Germacrone exhibited excellent contact activity against the L. serricorne adults, larvae and the T. castaneum larvae with LD50 values of 17.18 µg/adult, 20.94 µg/larva, 20.93 µg/larva respectively. And at the highest testing concentrations (78.63 and 15.73 nL/cm2), the repellent activity of EO and germacrone on two target insects was comparable to that of the positive control (DEET) after 30 h exposure. In especially, in the treatment of the 120 h after the repellent activity of EO and germacrone against T.castaneum adults and larvae were still very significant and showed the same level percentage repellency as DEET. Meanwhile, germacrone exhibited inhibition of acetylcholinesterase activity with IC50 values of 3%. The results indicated that the EO of R. thymifolium and germacrone had the potential to be developed as natural insecticides and repellents for the control of T. castaneum and L. serricorne.
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Affiliation(s)
- Jun-Yu Liang
- College of the life science, Northwest Normal University, Lanzhou, Gansu, P.R.China
| | - Ying-Ying Yang
- College of the life science, Northwest Normal University, Lanzhou, Gansu, P.R.China
| | - Yue An
- College of the life science, Northwest Normal University, Lanzhou, Gansu, P.R.China
| | - Ya-Zhou Shao
- College of the life science, Northwest Normal University, Lanzhou, Gansu, P.R.China
| | - Chun-Yu He
- College of Pharmacy, Gansu University of Chinese Medicine, Lanzhou, Gansu, P.R. China
| | - Ji Zhang
- College of the life science, Northwest Normal University, Lanzhou, Gansu, P.R.China
- A New Rural Development Research Institute of Northwest University, Northwest Normal University, Lanzhou, Gansu, P.R.China
| | - Ling-Yun Jia
- College of the life science, Northwest Normal University, Lanzhou, Gansu, P.R.China
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Fang X, Tan T, Gao B, Zhao Y, Liu T, Xia Q. Germacrone Regulates HBXIP-Mediated Cell Cycle, Apoptosis and Promotes the Formation of Autophagosomes to Inhibit the Proliferation of Gastric Cancer Cells. Front Oncol 2020; 10:537322. [PMID: 33244453 PMCID: PMC7683780 DOI: 10.3389/fonc.2020.537322] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 04/30/2020] [Accepted: 10/15/2020] [Indexed: 12/24/2022] Open
Abstract
Germacrone, a monocyclic sesquiterpene, exerts marked antitumor effects in a variety of cancers, including hepatocellular carcinoma, gastric cancer, and breast cancer. However, the mechanism underlying the effects of germacrone on gastric cancer remains unclear. In this study, we show that germacrone inhibited gastric cancer cell proliferation in a dose-dependent manner, and induced G0/G1-phase cell cycle arrest and apoptosis in these cells. Moreover, germacrone increased the expression of LC3II/LC3I. And LC3II/LC3I was significant increased after germacrone treatment compared with germacrone and bafilomycin A1 (Baf A1) treatment, which suggested germacrone promoted the formation of autophagosomes. Proteomic analysis was then used to identify molecular targets of germacrone in gastric cancer. A total of 596 proteins were screened, and the top hit was identified as late endosomal/lysosomal adaptor and MAPK and MTOR activator 5 (LAMTOR5, also named HBXIP). Overexpression of HBXIP delayed the germacrone-induced cell cycle arrest, induction of apoptosis, and inhibition of autophagy. Combined, our results indicate that germacrone suppresses gastric cancer cell proliferation by inhibiting HBXIP, and this process is related to G0/G1-phase arrest and apoptosis.
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Affiliation(s)
- Xing Fang
- Department of Pharmacy, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - TingFei Tan
- Department of Pharmacy, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - BeiBei Gao
- Department of Pharmacy, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - YingLi Zhao
- Department of Pharmacy, The Second People's Hospital of Hefei, Hefei, China
| | - TingTing Liu
- Department of Pharmacy, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Quan Xia
- Department of Pharmacy, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Department of Pharmacy, The Grade 3 Pharmaceutical Chemistry Laboratory of State Administration of Traditional Chinese Medicine, Hefei, China
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Zárybnický T, Matoušková P, Skálová L, Boušová I. The Hepatotoxicity of Alantolactone and Germacrone: Their Influence on Cholesterol and Lipid Metabolism in Differentiated HepaRG Cells. Nutrients 2020; 12:nu12061720. [PMID: 32521813 PMCID: PMC7353089 DOI: 10.3390/nu12061720] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/01/2020] [Accepted: 06/05/2020] [Indexed: 02/07/2023] Open
Abstract
The sesquiterpenes alantolactone (ATL) and germacrone (GER) are potential anticancer agents of natural origin. Their toxicity and biological activity have been evaluated using the differentiated HepaRG (dHepaRG) cells, a hepatocyte-like model. The half-maximal inhibitory concentrations of cell viability after 24-h treatment of dHepaRG cells are approximately 60 µM for ATL and 250 µM for GER. However, both sesquiterpenes induce reactive oxygen species (ROS) formation in non-toxic concentrations and significantly dysregulate the mRNA expression of several functional markers of mature hepatocytes. They similarly decrease the protein level of signal transducer and activator of transcription 3 (STAT3), nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and their transcription target, intercellular adhesion molecule 1 (ICAM-1). Based on the results of a BATMAN-TCM analysis, the effects of sesquiterpenes on cholesterol and lipid metabolism were studied. Sesquiterpene-mediated dysregulation of both cholesterol and lipid metabolism was observed, during which these compounds influenced the protein expression of 3-hydroxy-3-methylglutaryl-CoA reductase (HMGCR) and sterol regulatory element-binding protein 2 (SREBP-2), as well as the mRNA expression of HMGCR, CYP19A1, PLIN2, FASN, SCD, ACACB, and GPAM genes. In conclusion, the two sesquiterpenes caused ROS induction at non-toxic concentrations and alterations in cholesterol and lipid metabolism at slightly toxic and toxic concentrations, suggesting a risk of liver damage if administered to humans.
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Yu Z, Xu J, Shao M, Zou J. Germacrone Induces Apoptosis as Well as Protective Autophagy in Human Prostate Cancer Cells. Cancer Manag Res 2020; 12:4009-4016. [PMID: 32547235 PMCID: PMC7264030 DOI: 10.2147/cmar.s250522] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 02/19/2020] [Accepted: 05/08/2020] [Indexed: 01/04/2023] Open
Abstract
Background Germacrone, a natural product isolated from the traditional Chinese medicine Rhizoma Curcuma, has been reported to exhibit antitumor activities in vitro. To further understand the antitumor mechanism of germacrone, we investigated the growth inhibitory effect of germacrone on the human prostate cancer cell lines PC-3 (androgen independent) and 22RV1 (androgen dependent). Materials and Methods Prostate cancer cells were cultured with different concentrations of germacrone, and cell viability was measured by MTT assay. The levels of proteins were measured by Western blotting. Cell apoptosis was assessed by flow cytometry. Images of autophagy-related protein staining were captured by fluorescence microscopy. Autophagic flux was assessed by detecting the LC3B-II level. Results Our results indicated that germacrone treatment significantly inhibited cell proliferation by inducing apoptosis in a dose-dependent manner, with IC50 values of 259 μM for PC-3 cells and 396.9 μM for 22RV1 cells. Germacrone-treated cells also exhibited induction of autophagy, as evidenced by elevated LC3B-II protein expression levels and punctuate patterns. Additionally, an autophagy inhibitor enhanced the growth inhibitory effect of germacrone. Moreover, the phosphorylation of Akt and mTOR was inhibited in germacrone-treated prostate cancer cells. Conclusion Germacrone induced apoptosis and autophagy in prostate cancer cells by inhibiting the Akt/mTOR signaling pathway. Germacrone treatment also led to the activation of protective autophagy. These findings suggest that germacrone may potentially contribute to the development of a new therapeutic agent for prostate cancer treatment.
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Affiliation(s)
- Ziqiang Yu
- Department of Urology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei City, Anhui Province 230031, People's Republic of China
| | - Jiuping Xu
- Department of Urology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei City, Anhui Province 230031, People's Republic of China
| | - Mingfeng Shao
- Department of Urology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei City, Anhui Province 230031, People's Republic of China
| | - Jianan Zou
- Department of Urology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei City, Anhui Province 230031, People's Republic of China
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Hung NH, Huong LT, Chung NT, Thuong NTH, Satyal P, Dung NA, Tai TA, Setzer WN. Callicarpa Species from Central Vietnam: Essential Oil Compositions and Mosquito Larvicidal Activities. Plants (Basel) 2020; 9:E113. [PMID: 31963227 DOI: 10.3390/plants9010113] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 01/13/2020] [Accepted: 01/14/2020] [Indexed: 12/12/2022]
Abstract
There are around 140 species in the genus Callicarpa, with 23 species occurring in Vietnam. The Vietnamese Callicarpa species have been poorly studied. In this work, the leaf essential oils of C. bodinieri, C. candicans, C. formosana, C. longifolia, C. nudiflora, C. petelotii, C. rubella, and C. sinuata, have been obtained from plants growing in central Vietnam. The chemical compositions of the essential oils were determined using gas chromatography – mass spectrometry. Mosquito larvicidal activities of the essential oils were carried out against Aedes aegypti. All of the Callicarpa leaf essential oils showed larvicidal activity, but two samples of C. candicans were particularly active with 48-h LC50 values of 2.1 and 3.8 μg/mL. Callicarpacandicans essential oil should be considered as a potential alternative mosquito control agent.
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11
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He W, Zhai X, Su J, Ye R, Zheng Y, Su S. Antiviral Activity of Germacrone against Pseudorabies Virus in Vitro. Pathogens 2019; 8:pathogens8040258. [PMID: 31766701 PMCID: PMC6963304 DOI: 10.3390/pathogens8040258] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 11/18/2019] [Accepted: 11/19/2019] [Indexed: 11/23/2022] Open
Abstract
Pseudorabies virus (PRV), a member of the Herpesviridae, is the causative agent of an acute infectious disease in a variety of animals. The emergence of a novel variant strain brought huge economic losses to the pig industry since classical vaccine strains were not completely effective against variant strains. Therefore, the development of new anti-pseudorabies virus drugs and vaccines is of great significance for the treatment and prevention of pseudorabies. In this study, we found that germacrone, one of the major components of the essential oils extracted from Rhizoma Curcuma, was able to effectively inhibit PRV replication in a dose-dependent manner in vitro. Germacrone showed antiviral activity against PRV in the early phase of the viral replication cycle. Moreover, we found that germacrone does not directly kill the virus, nor does it affect the expression of the PRV receptor protein nectin-1, nectin-2, and CD155. Our results suggest germacrone could be used as an efficient microbicide or immunomodulatory agent in the control of the emerging variant PRV.
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12
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Sun Y, Li L, Wu J, Gong B, Liu H. Germacrone cooperates with dexmedetomidine to alleviate high-fat diet-induced type 2 diabetes mellitus via upregulating AMPKα1 expression. Exp Ther Med 2019; 18:3514-3524. [PMID: 31602228 PMCID: PMC6777304 DOI: 10.3892/etm.2019.7990] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 06/27/2019] [Indexed: 12/11/2022] Open
Abstract
The aim of the present study was to investigate the effects of germacrone (GM) and dexmedetomidine (DEX) in treating type 2 diabetes mellitus (T2DM). A high-fat diet (HFD)-induced T2DM rat model was established. The experimental rats were divided into the control group, HFD group, GM treatment group, DEX treatment group and GM + DEX treatment group. In addition, adenosine monophosphate-activated protein kinase (AMPK) inhibitor compound C (CC) was used to inhibit AMPKα1 expression. All rats received their respective treatment daily for 21 days. Blood glucose and lipid levels, apoptosis of hepatic cells, and levels of inflammatory factors and oxidative stress indicators in serum samples were evaluated. Protein expression of AMPKα1 and its downstream targets were also investigated. Results demonstrated that blood glucose concentration, blood lipid indicators (endothelin, total cholesterol, triglyceride and low density lipoprotein cholesterol), cell apoptosis in liver tissues, total oxidant status, malondialdehyde, interleukin (IL)-6, tumor necrosis factor-α (TNF-α) and IL-1β levels in serum were increased in the high-fat group compared to the control but decreased following GM and/or DEX treatment. By contrast, high-density lipoprotein cholesterol and antioxidative stress indicator superoxide dismutase (SOD) were decreased in the high-fat group but increased following GM and/or DEX treatment. Protein expression of AMPKα1 and the catabolic genes carnitine palmitoyltransferase-1, peroxisome proliferator-activated receptor-α and acyl coenzyme A were decreased whilst anabolic genes, including sterol regulatory element binding protein-1c, fatty acid synthase and diacylglycerol acyltransferase-2, were increased in the HFD group. These effects were attenuated by GM and/or DEX treatment. AMPKα1 inhibition resulted in decreased SOD and increased cell apoptosis in liver tissues as well as increased IL-6, TNF-α and IL-1β levels compared with the HFD group. However, these effects were abolished following treatment with CC, GM and DEX together. Taken together these results indicated that GM worked synergistically with DEX to attenuate symptoms of high-fat-induced T2DM, with the effect potentially involving an increase in AMPKα1 expression.
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Affiliation(s)
- Yang Sun
- Department of Anesthesia, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150000, P.R. China
| | - Lanlan Li
- Department of Anesthesia, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150000, P.R. China
| | - Jun Wu
- Department of Anesthesia, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150000, P.R. China
| | - Bing Gong
- Department of Anesthesia, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150000, P.R. China
| | - Haiyan Liu
- Department of Anesthesia, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150000, P.R. China
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13
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Wu T, Yin F, Kong H, Peng J. Germacrone attenuates cerebral ischemia/reperfusion injury in rats via antioxidative and antiapoptotic mechanisms. J Cell Biochem 2019; 120:18901-18909. [PMID: 31318092 DOI: 10.1002/jcb.29210] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 11/15/2018] [Revised: 06/03/2019] [Accepted: 06/04/2019] [Indexed: 11/09/2022]
Abstract
Germacrone (GM) is an anti-inflammatory compound extracted from Rhizoma curcuma. Here, we strived to investigate the neuroprotective effects of GM in rat models of transient middle cerebral artery occlusion/reperfusion injury. Rats immediately after cerebral ischemia were intraperitoneally injected with GM at doses of 5, 10, and 20 mg/kg. After 1 day of reperfusion, the water content in the brain, infarct volume, and neurological deficits were assessed. Hippocampus neurons were histopathologically examined by hematoxylin and eosin and terminal deoxynucleotidyl transferase dUTP nick end labeling staining. Activities of glutathione (GSH), superoxide dismutase (SOD), malondialdehyde (MDA), and glutathione peroxidase (GSH-PX) in brain tissue were detected. Real-time PCR and Western blotting were utilized to quantify the expression of apoptosis markers, such as caspase-3, Bax, and Bcl-2. The content of phospho-Akt (p-Akt) was also measured using Western blotting. GM treatment markedly decreased the brain water content, infarct volume and the neurological deficits, which was corroborated by attenuated histopathologic change. MDA levels were reduced and activities of GSH, SOD, and GSH-PX were elevated after GM treatment. Caspase-3 and Bax were decreased, and Bcl-2 was increased at both messenger RNA and protein levels by GM treatment. The p-Akt expression was increased by GM. Our data indicated that the neuroprotective effects of GM may attenuate the injuries from cerebral ischemia/reperfusion in rats through antioxidative and antiapoptotic mechanisms.
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Affiliation(s)
- Tianhui Wu
- Department of Pediatrics, Xiangya Hospital of Central South University, Changsha, Hunan, China.,Department of Nephrology and Rheumatology, Hunan Children's Hospital, The Paediatric Academy of University of South China, Changsha, Hunan, China
| | - Fei Yin
- Department of Pediatrics, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Huimin Kong
- Department of Pediatrics, Xiangya Hospital of Central South University, Changsha, Hunan, China.,Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jing Peng
- Department of Pediatrics, Xiangya Hospital of Central South University, Changsha, Hunan, China
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14
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Chen QF, Wang G, Tang LQ, Yu XW, Li ZF, Yang XF. [Effect of germacrone in alleviating HUVECs damaged by H2O2-induced oxidative stress]. Zhongguo Zhong Yao Za Zhi 2019; 42:3564-3571. [PMID: 29218943 DOI: 10.19540/j.cnki.cjcmm.20170731.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Indexed: 11/18/2022]
Abstract
This study focuses on the protective effect of germacrone on human umbilical vein endothelial cells(HUVECs) damaged by H2O2-induced oxidative stress and its possible mechanisms. The oxidative damage model was established by using 500 μmol•L⁻¹ H2O2 to treat HUVECs for 3 hours, and then protected with different concentrations of germacrone for 24 hours. The effect of germacrone on cell viability of HUVECs damaged by H2O2 was detected by MTT. The contents of PGI2, TXB2, ET-1, t-PA, PAI-1, TNF-α and IL-6 were detected by ELISA. The content of NO was detected by using nitrate reductase method. Colorimetry was used to detect NOS and GSH-Px. The contents of MDA, SOD and LDH were detected by TBA, WST-1 and microplate respectively. Apoptosis was observed by Hoechst 33258 fluorescent staining. The mRNA expressions of Bax, Bcl-2 and Caspase-3 in cells were detected by RT-PCR. The results showed that the cell damage rate was 52% after treated with 500 μmol•L⁻¹ H2O2 for 3 hours. The cell activity was increasing with the rise of germacrone concentration within the range of 20-200 mol•L⁻¹. Compared with normal group, the contents of PGI2, NO, T-NOS, t-PA, SOD, GSH-Px and Bcl-2 mRNA expressions were lower after damaged with H2O2. The contents of PAI-1, ET-1, IL-6, TNF-α, TXB2, LDH, MDA, Bax mRNA and Caspase-3 mRNA expressions were increased. Compared with model group, the contents of PGI2, NO, T-NOS, t-PA, SOD, GSH-Px and Bcl-2 mRNA expressions were increased after treated with germacrone. The contents of PAI-1, ET-1, IL-6, TNF-α, TXB2, LDH, MDA, Bax mRNA and Caspase-3 mRNA expressions were lower after treated with germacrone. According to Hoechst 33258 fluorescence staining, compared with normal group, the cell membrane and the nucleus showed strong dense blue fluorescence, and the number of cells significantly decreased in model group. Compared with model group, blue fluorescence intensity decreased in drug group. The above findings demonstrate that germacrone may improve the effect on HUVECs damaged by H2O2-induced oxidative stress by resisting oxidation and inhibiting cell apoptosis.
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Affiliation(s)
- Qiong-Fang Chen
- Department of Pharmacology, School of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530001, China
| | - Gang Wang
- Department of Pharmacology, School of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530001, China
| | - Li-Qing Tang
- Department of Pharmacology, School of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530001, China
| | - Xian-Wen Yu
- Department of Pharmacology, School of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530001, China
| | - Zhao-Fei Li
- Shaanxi Second People's Hospital, Xi'an 710000, China
| | - Xiu-Fen Yang
- Department of Pharmacology, School of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530001, China
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Abstract
We previously showed that Aster spathulifolius Maxim extract (ASE) reduced body weight gain and serum and liver lipid levels and significantly suppressed serum insulin and leptin concentrations in high-fat diet (HFD)-induced obese rats. Germacrone (GM) was identified as a potent bioactive constituent of ASE. In this study, we hypothesized that GM can attenuate hyperlipidemia by alleviating fatty acid (FA) synthesis/uptake and improve lipid metabolism by stimulating FA β-oxidation in HFD-induced obese C57BL/6J mice. To induce obesity, mice were fed an HFD for 6 weeks, while control mice were fed a commercial standard diet. The mice were allocated to six groups and fed either a normal diet, HFD, HFD with GM (5, 10, and 20 mg/kg), or HFD with 200 mg/kg Garcinia cambogia extract for 30 days. In the GM groups, body weight gain, visceral fat pad weight, fasting plasma glucose, serum insulin and leptin, and serum, as well as hepatic lipid, levels were attenuated. Transcriptional factors related to lipid metabolism, such as AMP-activated protein kinase α, sterol regulatory element-binding protein (SREBP) 1, SREBP 2, acetyl-CoA carboxylase, peroxisome proliferator-activated receptor (PPAR)-α, PPAR-γ, FA synthase, and carnitine palmitoyltransferase 1, showed higher expression in the GM groups. In summary, GM may help attenuate hyperlipidemia by suppressing FA synthesis and uptake by inhibiting SREBP signaling pathway activation and improve lipid metabolism by stimulating FA β-oxidation by activating the AMPKα signaling pathway in HFD-induced obesity.
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Affiliation(s)
- Yuan-Ri Guo
- 1 Department of Preventive Pharmacy and Toxicology, College of Pharmacy, Kyung Hee University , Seoul, Republic of Korea
| | - Se-Young Choung
- 1 Department of Preventive Pharmacy and Toxicology, College of Pharmacy, Kyung Hee University , Seoul, Republic of Korea.,2 Department of Life and Nanopharmaceutical Sciences, Graduate School, Kyung Hee University , Seoul, Republic of Korea
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16
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Guo YR, Choung SY. Germacrone inhibits adipogenesis and stimulates lipolysis via the AMP-activated protein kinase signalling pathway in 3T3-L1 preadipocytes. J Pharm Pharmacol 2016; 69:202-212. [PMID: 27917474 DOI: 10.1111/jphp.12674] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Accepted: 11/06/2016] [Indexed: 12/12/2022]
Abstract
OBJECTIVES In a previous study, we reported that Aster spathulifolius Maxim extract (ASE) inhibited lipid accumulation and adipocyte differentiation in 3T3-L1 cells. Of the components in ASE, germacrone (GM) was identified as a potent bioactive constituent. GM is known for its anticancer and antiviral activity. However, the effects of GM and the molecular mechanism by which GM regulates adipogenesis and lipolysis were not reported. Therefore, we investigated the effect of GM on adipogenesis and lipolysis and to elucidate its underlying molecular mechanism. METHODS We analysed the contents of intracellular triglyceride and carried out Western blotting and RT-qPCR to investigate the underlying mechanism. KEY FINDINGS We demonstrate that GM suppresses adipogenic differentiation and the increase in lipolysis in 3T3-L1 cells. In particular, GM down-regulates the expression of early adipogenesis-related genes (e.g. KLF4, KLF5, C/EBP-β and C/EBP-δ) and major adipogenesis-related genes (C/EBP-α and PPAR-γ). Furthermore, GM increases the protein levels of phosphorylated AMP-activated protein kinase α (AMPKα), phosphorylated acetyl-coenzyme A carboxylase (ACC) and carnitine palmitoyltransferase (CPT1). CONCLUSIONS Our results suggest that GM may be a potent bioactive anti-adipogenic and lipolytic constituent via the regulation of adipogenesis, lipolysis and the AMPKα pathway.
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Affiliation(s)
- Yuan-Ri Guo
- Department of Preventive Pharmacy and Toxicology, College of Pharmacy, Kyung Hee University, Seoul, Korea
| | - Se-Young Choung
- Department of Preventive Pharmacy and Toxicology, College of Pharmacy, Kyung Hee University, Seoul, Korea.,Department of Life and Nanopharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul, Korea
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Lim MS, Choung SY, Jeong KW. Germacrone Inhibits Estrogen Receptor α-Mediated Transcription in MCF-7 Breast Cancer Cells. Phytother Res 2016; 30:2036-2043. [PMID: 27573551 DOI: 10.1002/ptr.5711] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [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: 05/10/2016] [Revised: 07/17/2016] [Accepted: 08/14/2016] [Indexed: 01/03/2023]
Abstract
Estrogen receptor (ER)α-positive breast cancer cells regulate the expression of estrogen-responsive genes, which are involved in cell proliferation, differentiation, and cell cycle progression. Clinically, the inhibition of ERα-mediated gene expression in breast cancer cells has long been considered an effective way to prevent the development and progression of cancer. Germacrone, a terpenoid compound isolated from Rhizoma curcuma, has been known to have antitumor activity in various human cancer cell lines. However, the mechanism by which germacrone inhibits the proliferation of breast cancer cells is still unclear. Here, we demonstrated that germacrone inhibits ERα-mediated gene expression at the transcriptional level in MCF-7 cells. Germacrone inhibits the recruitment of ERα to the estrogen response element on chromatin and consequently compromises the binding of switch/sucrose non-fermentable chromatin remodeling complex and RNA polymerase II to target gene promoter, thereby inhibiting the estrogen-induced chromatin accessibility. In addition, germacrone efficiently potentiates the antitumor activity of methotrexate and 5-fluorouracil. Our results not only provide substantial molecular mechanism of germacrone on ERα-mediated signaling in breast cancer cells but also demonstrate the benefits of germacrone as a combination therapy with other drugs for the treatment of breast cancer. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Mi-Sun Lim
- Gachon Institute of Pharmaceutical Sciences, College of Pharmacy, Gachon University, 191 Hambakmoero, Yeonsu-gu, Incheon, 21936, Korea
| | - Se-Young Choung
- Department of Preventive Pharmacy and Toxicology, Department of Life and Nanopharmaceutical Science of Pharmacy, College of Pharmacy, Kyung Hee University, Hoegi-dong, Dongdaemun-gu, Seoul, 130-701, Korea
| | - Kwang Won Jeong
- Gachon Institute of Pharmaceutical Sciences, College of Pharmacy, Gachon University, 191 Hambakmoero, Yeonsu-gu, Incheon, 21936, Korea
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18
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Wang B, Yang S, Sheng L, Li Y. Simultaneous quantification of curdione, furanodiene and germacrone in rabbit plasma using liquid chromatography-tandem mass spectrometry and its application to a pharmacokinetic study. Biomed Chromatogr 2015; 29:1393-8. [PMID: 25678109 DOI: 10.1002/bmc.3436] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 12/12/2014] [Accepted: 01/04/2015] [Indexed: 11/05/2022]
Abstract
A simple, rapid and sensitive method was developed for the simultaneous quantification of curdione, furanodiene and germacrone in rabbit plasma using a LC-MS/MS analysis. The plasma sample preparation was a simple deproteinization by the addition of 3 vols of acetonitrile followed by centrifugation. The analytes and internal standard (IS) costunolide were separated on a Zorbax SB-C18 column (3.5 µm, 2.1 × 100 mm) with mobile phase of methanol-water (90:10, v/v) containing 0.1% formic acid at a flow rate of 0.3 mL/min with an operating temperature of 25°C. Detection was carried out by atmospheric pressure chemical ionization in positive ion selected reaction monitoring mode. Linear detection responses were obtained for the three test compounds ranging from 5 to 5000 ng/mL and the lower limits of quantitation were 5-10 ng/mL. The intra- and inter-day precisions (relative standard deviations) were within 9.4% for all analytes, while the deviation of assay accuracies was within ±10.0%. The average recoveries of analytes were >80.0%. All analytes were proved to be stable during all sample storage, preparation and analytical procedures. The method was successfully applied to the pharmacokinetic study of the three compounds after vaginal drug delivery of Baofukang suppository to rabbit.
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Affiliation(s)
- Baolian Wang
- Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Perking Union Medical College, Beijing, 100050, People's Republic of China
| | - Shuang Yang
- Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Perking Union Medical College, Beijing, 100050, People's Republic of China
| | - Li Sheng
- Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Perking Union Medical College, Beijing, 100050, People's Republic of China
| | - Yan Li
- Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Perking Union Medical College, Beijing, 100050, People's Republic of China
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Xie XH, Zhao H, Hu YY, Gu XD. Germacrone reverses Adriamycin resistance through cell apoptosis in multidrug-resistant breast cancer cells. Exp Ther Med 2014; 8:1611-1615. [PMID: 25289068 PMCID: PMC4186325 DOI: 10.3892/etm.2014.1932] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [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: 01/16/2014] [Accepted: 06/06/2014] [Indexed: 12/29/2022] Open
Abstract
Multidrug resistance (MDR) is a major obstacle to the chemotherapeutic treatment of breast cancer. Germacrone, the main component of Rhizoma Curcuma, has been shown to possess antitumor, anti-inflammatory and immunomodulatory properties. The aim of the present study was to investigate the effect of germacrone on MCF-7/Adriamycin (ADR) multidrug-resistant human breast cancer cells. The treatment of MCF-7/ADR cells with a combination of germacrone and ADR resulted in an increase in cytotoxicity compared with that of ADR alone, as determined using an MTT assay. Flow cytometric analysis revealed that germacrone promoted cell apoptosis in a dose-dependent manner, whilst treatment with germacrone plus ADR enhanced the apoptotic effect synergistically. Furthermore, the results from the western blot analysis demonstrated that augmenting ADR treatment with germacrone resulted in a reduction of anti-apoptotic protein expression levels (bcl-2) and enhancement of pro-apoptotic protein expression levels (p53 and bax) in MCF-7/ADR cells compared with the levels achieved by treatment with ADR alone. In addition, germacrone significantly reduced the expression of P-glycoprotein via the inhibition of the multidrug resistance 1 (MDR1) gene promoter. These findings demonstrate that germacrone has a critical role against MDR and may be a novel MDR reversal agent for breast cancer chemotherapy.
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Affiliation(s)
- Xiao-Hong Xie
- Department of Breast Surgery, Zhejiang Provincial Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang 310014, P.R. China
| | - Hong Zhao
- Department of Breast Surgery, Zhejiang Provincial Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang 310014, P.R. China
| | - Yuan-Yuan Hu
- Department of Breast Surgery, Zhejiang Provincial Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang 310014, P.R. China
| | - Xi-Dong Gu
- Department of Breast Surgery, Zhejiang Provincial Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang 310014, P.R. China
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Suphrom N, Srivilai J, Pumthong G, Khorana N, Waranuch N, Limpeanchob N, Ingkaninan K. Stability studies of antiandrogenic compounds in Curcuma aeruginosa Roxb. extract. ACTA ACUST UNITED AC 2014; 66:1282-93. [PMID: 24905238 DOI: 10.1111/jphp.12216] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Accepted: 12/07/2013] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Curcuma aeruginosa Roxb. extract is a 5α-reductase antagonist that can be used to treat hair loss. We aimed to study the stability of antiandrogenic constituents, germacrone and other sesquiterpene components in the extract. METHODS Germacrone and the extract were analyzed as solid forms or solublized with polyethylene glycol-40 (PEG-40) or methanol using high-performance liquid chromatography and gas chromatography with flame ionization detector. The effects of pH, temperature and light on their stability were studied. KEY FINDINGS Degradation of antiandrogenic compounds in C. aeruginosa was highly sensitive to temperature especially pure anhydrous germacrone, which was completely lost within 3 days at 45°C. Curiously, degradation was slower than as a dried extract. Paradoxically, when solubilized with PEG-40, it was largely intact even after 90 days at 45°C. The MS spectrum of a major degradation product suggested that it was elemenone probably produced by Cope rearrangement. Two other putative degradation products were germacrone-1,10-epoxide and germacrone-4,5-epoxide suggesting that oxidation of double bonds was an important mechanism. Germacrone stability was unaffected by pH (2.0-9.0) but only as dried extract it was slightly degraded by light. CONCLUSION Antiandrogenic constituents of C. aeruginosa were instable at high temperature and in solid form. Thus, the extract would be optimately stored as a solution or otherwise as solid form at low temperature.
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Affiliation(s)
- Nungruthai Suphrom
- Bioscreening Unit, Department of Pharmaceutical Chemistry and Pharmacognosy, Naresuan University, Phitsanulok, Thailand
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Revathi S, Malathy NS. Antibacterial Activity of Rhizome of Curcuma aromatica and Partial Purification of Active Compounds. Indian J Pharm Sci 2013; 75:732-5. [PMID: 24591751 PMCID: PMC3928740] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Revised: 10/14/2013] [Accepted: 10/21/2013] [Indexed: 10/31/2022] Open
Abstract
The hexane extract of Curcuma aromatica, a plant belonging to the family Zingiberaceae was tested on 10 bacterial strains (clinical isolates and standard strains). Agar diffusion method was adopted for determining the antibacterial activity of the extract. The hexane extract was found to be active against all Gram-positive strains tested, but inactive against Gram-negative strains. The minimum inhibitory concentration and minimum bactericidal concentration were determined and found to be 539 μg/ml. The phytochemical analysis of hexane extract by gas chromatography mass spectrometry revealed the presence of 13 compounds. The crude hexane extract was partially purified by thin layer chromatography. The zone showing good antibacterial activity was analysed further by gas chromatography mass spectrometry, UV/Vis spectrophotometry and Fourier transform infrared spectroscopy, which indicated the probable presence of germacrone.
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Affiliation(s)
- S. Revathi
- Departments of Plant Biology and Plant Biotechnology, PSGR. Krishnammal College for Women, Coimbatore-641004, India,Address for correspondence E-mail:
| | - N. S. Malathy
- Departments of Plant Biology and Plant Biotechnology, PSGR. Krishnammal College for Women, Coimbatore-641004, India
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