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Zahra M, Abrahamse H, George BP. Green nanotech paradigm for enhancing sesquiterpene lactone therapeutics in cancer. Biomed Pharmacother 2024; 173:116426. [PMID: 38471274 DOI: 10.1016/j.biopha.2024.116426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/06/2024] [Accepted: 03/08/2024] [Indexed: 03/14/2024] Open
Abstract
In the field of cancer therapy, sesquiterpene lactones (SLs) derived from diverse Dicoma species demonstrate noteworthy bioactivity. However, the translation of their full therapeutic potential into clinical applications encounters significant challenges, primarily related to solubility, bioavailability, and precise drug targeting. Despite these obstacles, our comprehensive review introduces an innovative paradigm shift that integrates the inherent therapeutic properties of SLs with the principles of green nanotechnology. To overcome issues of solubility, bioavailability, and targeted drug delivery, eco-friendly strategies are proposed for synthesizing nanocarriers. Green nanotechnology has emerged as a focal point in addressing environmental and health concerns linked to conventional treatments. This progressive approach of green nanotechnology holds promise for the development of safe and sustainable nanomaterials, particularly in the field of drug delivery. This groundbreaking methodology signifies a pioneering advancement in the creation of novel and effective anticancer therapeutics. It holds substantial potential for transforming cancer treatment and advancing the landscape of natural product research.
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Affiliation(s)
- Mehak Zahra
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 1711, Doornfontein 2028, South Africa
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 1711, Doornfontein 2028, South Africa
| | - Blassan P George
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 1711, Doornfontein 2028, South Africa.
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Kumar R, Bhardwaj P, Soni M, Singh R, Choudhary S, Virmani N, Asrani RK, Patial V, Sharma D, Gupta VK, Tripathi BN. Modulation of mammary tumour progression using murine model by ethanol root extract of Saussurea costus (falc.) lipsch. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117302. [PMID: 37858751 DOI: 10.1016/j.jep.2023.117302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/27/2023] [Accepted: 10/08/2023] [Indexed: 10/21/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Breast cancer is a major cause of death among human females across the globe. The anti-neoplastic agents or therapies used for the treatment of cancers can enhance longevity but are subsequently observed to deteriorate the quality of life due to the extensive side effects produced. Saussurea costus is a potential medicinal plant of the Himalayas with noticeable ethnopharmacological properties. The phytochemicals present in Saussurea costus are responsible for anti-carcinogenic potential and warranted nil or minimal side effects of Saussurea costus and directed to use this plant as a preventive or therapeutic drug candidate against cancers. AIM OF THE STUDY The present study was planned to evaluate the anti-neoplastic activity of Saussurea costus root extract (SL) in rat mammary tumour model. MATERIALS AND METHODS The anti-neoplastic activity of SL root extract at 3 different doses (100, 250 and 500 mg/kg BW) for 18 weeks against 12-dimethylbenz (a) anthracene (DMBA)-induced mammary tumours in Sprague Dawley (SD) female rats was analyzed through serum biochemistry (ALT, AST, ALP, Total protein, Creatinine and BUN), oxidative stress parameters (Lipid peroxidation, Catalase and Reduced glutathione), pro-inflammatory cytokines (TNF-α and NF-κB), immunohistochemical markers (Ki-67, MMP-9 and VEGF), real-time PCR (PCNA, p53, bax, bcl-2 and caspase-3, genes) and molecular docking. RESULTS Inhibition of tumour parameters, minimal alteration in the liver (ALT, AST and ALP) and kidney enzymes (Creatinine and BUN), decreased activity of MDA, elevated levels of GSH and catalase, reduction in the levels of pro-inflammatory cytokines i.e. TNF-α and NF-κB, reduced gross and histomorphological changes, declined expression of Ki-67, MMP-9 and VEGF in vivo rat model, mRNA expression of cancer-related genes and docking of dehydrocostus lactone and costunolide with NF-κB and TNF-α demonstrated the chemopreventive action of SL root extract. CONCLUSIONS The in-vivo trial elucidates anti-neoplastic activity of Saussurea costus root extract as demonstrated through the reduction of biochemical indices, oxidative stress parameters, histological changes, pro-inflammatory cytokines (NF-κB and TNF-α), cellular proliferation (Ki-67), metastases (MMP-9) and neovascularization (VEGF) markers with highest anti-neoplastic effect of SL extract at the dose of 500 mg/kg body weight. Therefore, the present study signifies the need to use the active principles present in the root extract of Saussurea costus against breast cancer as a therapeutic regimen.
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Affiliation(s)
- Rakesh Kumar
- Department of Veterinary Pathology, Dr. G.C Negi College of Veterinary and Animal Sciences, CSK Himachal Pradesh Agricultural University, Palampur, Himachal Pradesh, 176062, India.
| | - Pallavi Bhardwaj
- Department of Veterinary Pharmacology and Toxicology, Dr. G.C Negi College of Veterinary and Animal Sciences, CSK Himachal Pradesh Agricultural University, Palampur, Himachal Pradesh, 176062, India
| | - Mridul Soni
- Department of Veterinary Pathology, Dr. G.C Negi College of Veterinary and Animal Sciences, CSK Himachal Pradesh Agricultural University, Palampur, Himachal Pradesh, 176062, India
| | - Rahul Singh
- Department of Veterinary Pathology, Dr. G.C Negi College of Veterinary and Animal Sciences, CSK Himachal Pradesh Agricultural University, Palampur, Himachal Pradesh, 176062, India
| | - Sahil Choudhary
- Department of Veterinary Pathology, Dr. G.C Negi College of Veterinary and Animal Sciences, CSK Himachal Pradesh Agricultural University, Palampur, Himachal Pradesh, 176062, India
| | - Nitin Virmani
- ICAR- National Research Centre on Equines, Sirsa Road, Hisar, Haryana, 125001, India
| | - R K Asrani
- Department of Veterinary Pathology, Dr. G.C Negi College of Veterinary and Animal Sciences, CSK Himachal Pradesh Agricultural University, Palampur, Himachal Pradesh, 176062, India
| | - Vikram Patial
- Division of Dietetics and Nutrition Technology, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, 176061, India
| | - Dixit Sharma
- Department of Animal Sciences, Central University of Himachal Pradesh, Sahpur, Kangra, Himachal Pradesh, 176062, India
| | - V K Gupta
- Department of Veterinary Pathology, Dr. G.C Negi College of Veterinary and Animal Sciences, CSK Himachal Pradesh Agricultural University, Palampur, Himachal Pradesh, 176062, India
| | - B N Tripathi
- Sher-e-Kashmir University of Agricultural Sciences and Technology (SKUAST) of Jammu, Jammu and Kashmir, 180009, India.
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Cheikh IA, El-Baba C, Youssef A, Saliba NA, Ghantous A, Darwiche N. Lessons learned from the discovery and development of the sesquiterpene lactones in cancer therapy and prevention. Expert Opin Drug Discov 2022; 17:1377-1405. [PMID: 36373806 DOI: 10.1080/17460441.2023.2147920] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/06/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Sesquiterpene lactones (SLs) are one of the most diverse bioactive secondary metabolites found in plants and exhibit a broad range of therapeutic properties . SLs have been showing promising potential in cancer clinical trials, and the molecular mechanisms underlying their anticancer potential are being uncovered. Recent evidence also points to a potential utility of SLs in cancer prevention. AREAS COVERED This work evaluates SLs with promising anticancer potential based on cell, animal, and clinical models: Artemisinin, micheliolide, thapsigargin dehydrocostuslactone, arglabin, parthenolide, costunolide, deoxyelephantopin, alantolactone, isoalantolactone, atractylenolide 1, and xanthatin as well as their synthetic derivatives. We highlight actionable molecular targets and biological mechanisms underlying the anticancer therapeutic properties of SLs. This is complemented by a unique assessment of SL mechanisms of action that can be exploited in cancer prevention. We also provide insights into structure-activity and pharmacokinetic properties of SLs and their potential use in combination therapies. EXPERT OPINION We extract seven major lessons learned and present evidence-based solutions that can circumvent some scientific limitations or logistic impediments in SL anticancer research. SLs continue to be at the forefront of cancer drug discovery and are worth a joint interdisciplinary effort in order to leverage their potential in cancer therapy and prevention.
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Affiliation(s)
- Israa A Cheikh
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
| | - Chirine El-Baba
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
| | - Ali Youssef
- Department of Chemistry, American University of Beirut, Beirut, Lebanon
| | - Najat A Saliba
- Department of Chemistry, American University of Beirut, Beirut, Lebanon
| | - Akram Ghantous
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer, Lyon, France
| | - Nadine Darwiche
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
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Nadda RK, Ali A, Goyal RC, Khosla PK, Goyal R. Aucklandia costus (Syn. Saussurea costus): Ethnopharmacology of an endangered medicinal plant of the himalayan region. JOURNAL OF ETHNOPHARMACOLOGY 2020; 263:113199. [PMID: 32730877 DOI: 10.1016/j.jep.2020.113199] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 07/06/2020] [Accepted: 07/16/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Aucklandia costus Falc. a medicinal plant is native to the Himalayan region and synonymous with Saussurea costus, Saussurea lappa, and Aucklandia lappa. It has an ancient background of being used ethnopharmacologically for various body ailments. According to Ayurveda, Unani, Siddha, and Traditional Chinese Medicine, Costus roots are recommended for leukoderma, liver, kidney, blood disorders, Qi stagnation, and tridosha. Root and powder are used orally with warm water to cure gastric problems, and the paste is applied to the inflamed area to relieve pain. Root paste is applied on the skin to cure boils, blisters, and leprosy. AIM OF THE STUDY The aim of the present review is to establish a correlation among the ethnopharmacological uses and scientific studies conducted on A. costus with chemical constituents, safety & toxicity data including future directions for its conservation with higher yield and effect. MATERIALS AND METHODS The study was conducted by studying books, research papers, and literature in history, agroforestry, phytopharmacology of Himalayan plants using international databases, publication, Red data book, and reports. The search engines: Pubmed, Scopus, Wiley Inter-science, Indian Materia Medica, Science Direct, and referred journals are referenced. RESULTS The literature collected from databases, journals, websites, and books mentioned the use of costus roots in local and traditional practices. CITES included A. costus in a critically endangered category due to lack of cultural practices and overexploitation from wild. A. costus roots are known since 13th century for use in ancient Ayurvedic products but the scientific evaluation is of future research interest. A correlation of traditional uses with scientific studies has been explored to assess the effect of root powder, extract, oil and isolated constituents: Costunolids, Saussureamine B and Dehydrocostus lactone etc. in gastric ulceration and lesions; inhibition of antigen-induced degranulation, mucin production, number of immune cells, eosinophils, and expression and secretion of Th2 cytokines (IL-4 and IL-13) in asthma. The inhibition of pro-inflammatory mediators is also reported by Cynaropicrin, Alantolactone, Caryophyllene, Costic acid. Also, the sesquiterpene lactones has profound effect in inhibition of inflammatory stages and induced apoptotic cascades in cancer. Very few data on the safety and toxicity of plant parts have been noted which needs to be evaluated scientifically. CONCLUSION A. costus have been noted to have remarkable effect for gastric, hepatic, inflammatory, respiratory, cancer, skin problems but there were several errors in selection of plant material, authentification, selection of dose, assessment, selection of standard and control have been identified. Therefore, a schematic drug development and research strategy exploiting the potential of plant extract, fraction, products and probable constituents, costunolide, dehydrocostus lactone, cynaropicrin, saussureamine assuring dose-response relationship and safety may be determined under pre-clinical which may be extrapolated to clinical level. An evaluation of phytochemicals in A. costus collected from different geographical location in Himalayas may be drawn to identify and conserve the higher yielding plant.
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Affiliation(s)
- Rohit Kumar Nadda
- School of Biological and Environmental Sciences, Shoolini University, Solan, Himachal Pradesh, 173229, India
| | - Aaliya Ali
- School of Biotechnology, Shoolini University, Solan, Himachal Pradesh, 173229, India
| | - Renu Chib Goyal
- Natural Product Chemistry Microbes, Indian institute of Integrative Medicine (CSIR Lab, Canal Road), Jammu, J&K, 180001, India
| | - Prem Kumar Khosla
- School of Biological and Environmental Sciences, Shoolini University, Solan, Himachal Pradesh, 173229, India
| | - Rohit Goyal
- School of Pharmaceutical Sciences, Sciences, Shoolini University, Solan, Himachal Pradesh, 173229, India.
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Choi D, Kim J, An J, Hong S, Song Y, Kong H. Amelioration of Benign Prostatic Hyperplasia by Costunolide and Dehydrocostus Lactone in Wistar Rats. World J Mens Health 2019; 39:315-323. [PMID: 31749336 PMCID: PMC7994664 DOI: 10.5534/wjmh.190053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 07/22/2019] [Accepted: 08/16/2019] [Indexed: 11/15/2022] Open
Abstract
Purpose Sesquiterpene lactones, which are found in plants of the Asteraceae family, contain costunolide (CO) and dehydrocostus lactone (DCL) as indicator material. CO, in particular, has been reported to possess varied pharmacological activity, including anti-inflammatory, antibacterial, and antioxidant effects. This study was designed to characterize the effects of CO and DCL on benign prostate hyperplasia (BPH). Materials and Methods Rats were injected subcutaneously daily for 8 weeks with 5 mg/kg testosterone to induce prostatic hyperplasia. Wistar rats were randomly divided into 5 groups of 10 animals each and received the following treatment: I. Normal control group; II. BPH-induced group; III. CO group (0.075 mg/kg); IV. DCL group (0.075 mg/kg); and V. Finasteride group (0.8 mg/kg). After treatment, changes in prostate weight and serum biochemical indices, serum dihydrotestosterone level, and mRNA levels of BCL2 were measured and histological examinations performed. Results Absolute and relative prostate weight in the indicator material treated groups, as well as prostate volume, decreased compared to those in the disease-induced group. Epithelial cell thickness increased significantly in the disease-induced group, with a significant decrease being observed in the CO group. The level of the anti-apoptotic protein BCL2 (B-cell lymphoma 2) tended to decrease to a greater extent in the DCL group than in the disease-induced group. Conclusions In this study, we confirmed that the indicator materials (CO and DCL) can help suppress the development of BPH.
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Affiliation(s)
| | | | - Jinho An
- College of Pharmacy, Sahmyook University, Seoul, Korea
| | - Seonhwa Hong
- College of Pharmacy, Sahmyook University, Seoul, Korea
| | | | - Hyunseok Kong
- College of Animal Biotechnology and Resource, Sahmyook University, Seoul, Korea.
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Costunolide alleviates HKSA-induced acute lung injury via inhibition of macrophage activation. Acta Pharmacol Sin 2019; 40:1040-1048. [PMID: 30644422 DOI: 10.1038/s41401-018-0192-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 11/01/2018] [Indexed: 12/26/2022] Open
Abstract
Staphylococcus aureus (S. aureus) infection leads to a severe inflammatory response and causes acute lung injury (ALI), eventually threatening human life. Therefore, it is of importance to find an agent to inhibit inflammation and reduce ALI. Here, we found that costunolide, a sesquiterpene lactone, displays anti-inflammatory effects and ameliorates heat-killed S. aureus (HKSA)-induced pneumonia. Costunolide treatment attenuated HKSA-induced murine ALI in which pulmonary neutrophil infiltration was inhibited, lung edema was decreased, and the production of pro-inflammatory cytokines was significantly reduced. In addition, costunolide dose-dependently inhibited the generation of IL-6, TNF-α, IL-1β, and keratinocyte-derived cytokine (KC), as well as the expression of iNOS, in HKSA-induced macrophages. Furthermore, costunolide attenuated the phosphorylation of p38 MAPK and cAMP response element-binding protein (CREB). Collectively, our findings suggested that costunolide is a promising agent for alleviating bacterial-induced ALI via the inhibition of the MAPK signaling pathways.
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Chen Z, Zhang D, Li M, Wang B. Costunolide ameliorates lipoteichoic acid-induced acute lung injury via attenuating MAPK signaling pathway. Int Immunopharmacol 2018; 61:283-289. [PMID: 29906743 DOI: 10.1016/j.intimp.2018.06.017] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2017] [Revised: 05/22/2018] [Accepted: 06/08/2018] [Indexed: 12/24/2022]
Abstract
Lipoteichoic acid (LTA)-induced acute lung injury (ALI) is an experimental model for mimicking Gram-positive bacteria-induced pneumonia that is a refractory disease with lack of effective medicines. Here, we reported that costunolide, a sesquiterpene lactone, ameliorated LTA-induced ALI. Costunolide treatment reduced LTA-induced neutrophil lung infiltration, cytokine and chemokine production (TNF-α, IL-6 and KC), and pulmonary edema. In response to LTA challenge, treatment with costunolide resulted less iNOS expression and produced less inflammatory cytokines in bone marrow derived macrophages (BMDMs). Pretreatment with costunolide also attenuated the LTA-induced the phosphorylation of p38 MAPK and ERK in BMDMs. Furthermore, costunolide treatment reduced the phosphorylation of TAK1 and inhibited the interaction of TAK1 with Tab1. In conclusion, we have demonstrated that costunolide protects against LTA-induced ALI via inhibiting TAK1-mediated MAPK signaling pathway, and our studies suggest that costunolide is a promising agent for treatment of Gram-positive bacteria-mediated pneumonia.
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Affiliation(s)
- Zhengxu Chen
- Department of Clinical Laboratory, The Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui Province, China; Department of Clinical Laboratory, The Second People's Hospital of Hefei, Hefei, Anhui Province, China
| | - Dan Zhang
- Research Center for Cancer Precision Medicine, Department of Laboratory Medicine, Bengbu Medical College, Bengbu, Anhui Province, China.
| | - Man Li
- Department of Clinical Laboratory, The Second People's Hospital of Hefei, Hefei, Anhui Province, China
| | - Baolong Wang
- Department of Clinical Laboratory, The Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui Province, China.
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Costunolide specifically binds and inhibits thioredoxin reductase 1 to induce apoptosis in colon cancer. Cancer Lett 2017; 412:46-58. [PMID: 29037867 DOI: 10.1016/j.canlet.2017.10.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 10/03/2017] [Accepted: 10/06/2017] [Indexed: 12/16/2022]
Abstract
Colon cancer is one of the leading causes of cancer-related deaths. A natural sesquiterpene lactone, costunolide (CTD), showed inhibition of cancer development. However, the underlying mechanisms are not known. Here, we have examined the therapeutic activity and novel mechanisms of the anti-cancer activities of CTD in colon cancer cells. Using SPR analysis and enzyme activity assay on recombinant TrxR1 protein, our results show that CTD directly binds and inhibits the activity of TrxR1, which caused enhanced generation of ROS and led to ROS-dependent endoplasmic reticulum stress and cell apoptosis in colon cancer cells. Overexpression of TrxR1 in HCT116 cells reversed CTD-induced cell apoptosis and ROS increase. CTD treatment of mice implanted with colon cancer cells showed tumor growth inhibition and reduced TrxR1 activity and ROS level. In addition, it was observed that TrxR1 was significantly up-regulated in existing colon cancer gene database and clinically obtained colon cancer tissues. Our studies have uncovered the mechanism underlying the biological activity of CTD in colon cancer and suggest that targeting TrxR1 may prove to be beneficial as a treatment option.
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Park E, Song JH, Kim MS, Park SH, Kim TS. Costunolide, a sesquiterpene lactone, inhibits the differentiation of pro-inflammatory CD4 + T cells through the modulation of mitogen-activated protein kinases. Int Immunopharmacol 2016; 40:508-516. [DOI: 10.1016/j.intimp.2016.10.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 10/10/2016] [Accepted: 10/11/2016] [Indexed: 01/10/2023]
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Chen Y, Zheng H, Zhang J, Wang L, Jin Z, Gao W. Reparative activity of costunolide and dehydrocostus in a mouse model of 5-fluorouracil-induced intestinal mucositis. RSC Adv 2016. [DOI: 10.1039/c5ra22371g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The aim of the study was to investigate the protective effects of costunolide (Co) and dehydrocostus (De) in 5-fluorouracil (5-FU)-induced intestinal mucositis (IM) as well as the potential mechanisms involved.
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Affiliation(s)
- Yuling Chen
- Tianjin University of Traditional Chinese Medicine
- Tianjin 300193
- China
| | - Hong Zheng
- School of Pharmaceutical Science and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Jingze Zhang
- Department of Pharmacy
- Logistics University of Chinese People's Armed Police Forces
- Special Drugs R & D Center of People's Armed Police Forces
- Tianjin 300162
- China
| | - Lei Wang
- Tianjin Lerentang Pharmaceutical Factory
- Tianjin Zhongxin Pharmaceutical Group Co., Ltd
- Tianjin 300380
- China
| | - Zhaoxiang Jin
- Tianjin Lerentang Pharmaceutical Factory
- Tianjin Zhongxin Pharmaceutical Group Co., Ltd
- Tianjin 300380
- China
| | - Wenyuan Gao
- School of Pharmaceutical Science and Technology
- Tianjin University
- Tianjin 300072
- China
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Bruno M, Bancheva S, Rosselli S, Maggio A. Sesquiterpenoids in subtribe Centaureinae (Cass.) Dumort (tribe Cardueae, Asteraceae): distribution, (13)C NMR spectral data and biological properties. PHYTOCHEMISTRY 2013; 95:19-93. [PMID: 23948259 DOI: 10.1016/j.phytochem.2013.07.002] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 07/05/2013] [Accepted: 07/05/2013] [Indexed: 05/22/2023]
Abstract
Asteraceae Bercht. & J. Presl is one of the biggest and most economically important plant families. The taxonomy and phylogeny of Asteraceae is rather complex and according to the latest and most reliable taxonomic classification of Panero & Funk, based on the analysis of nine chloroplast regions, the family is divided into 12 subfamilies and 35 tribes. One of the largest tribes of Asteraceae is Cardueae Cass. with four subtribes (Carlininae, Echinopinae, Carduinae and Centaureinae) and more than 2500 species. Susanna & Garcia-Jacas have organized the genera of Centaureinae (about 800 species) into seven informal groups, which recent molecular studies have confirmed: 1. Basal genera; 2. Volutaria group; 3. Rhaponticum group; 4. Serratula group; 5. Carthamus group; 6. Crocodylium group; 7. Centaurea group. This review summarizes reports on sesquiterpenoids from the Centaureinae subtribe of the Asteraceae family, as well as the (13)C NMR spectral data described in the literature. It further reviews studies concerning the biological activities of these metabolites. For this work, literature data on sesquiterpenes from the Centaureinae subtribe were retrieved with the help of the SciFinder database and other similar data banks. All entries from 1958 until the end of 2011 were considered. This review is addressed to scientists working in the metabolomics field such as chemists, botanists, etc., the spectroscopic data reported make this work a good tool for structural elucidation, the biological section gives useful information to those who wish to study the structure activity relationships.
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Affiliation(s)
- Maurizio Bruno
- STEBICEF, Section of Chemistry, University of Palermo, Viale delle Scienze, Parco d'Orleans II, 90128 Palermo, Italy.
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Saussurea lappa Clarke-Derived Costunolide Prevents TNF α -Induced Breast Cancer Cell Migration and Invasion by Inhibiting NF- κ B Activity. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:936257. [PMID: 23997800 PMCID: PMC3755433 DOI: 10.1155/2013/936257] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Accepted: 05/03/2013] [Indexed: 12/13/2022]
Abstract
Saussurea lappa Clarke (SLC) has been used as a traditional medicine in Korea, China, and Japan for the treatment of abdominal pain and tenesmus. Costunolide, a sesquiterpene lactone isolated from SLC, has diverse medicinal effects. However, the anticancer effects of costunolide are still unclear in breast cancer. In this study, we demonstrate that costunolide suppresses tumor growth and metastases of MDA-MB-231 highly metastatic human breast cancer cells via inhibiting TNFα-induced NF-κB activation. Costunolide inhibited MDA-MB-231 tumor growth and metastases without affecting body weights in the in vivo mouse orthotopic tumor growth assays. In addition, costunolide inhibited in vitro TNFα-induced invasion and migration of MDA-MB-231 cells. Costunolide further suppressed TNFα-induced NF-κB signaling activation, resulting in a reduced expression of MMP-9, a well-known NF-κB-dependent gene to mediate breast cancer cell growth and metastases. Therefore, we conclude that SLC and its derivative costunolide suppress breast cancer growth and metastases by inhibiting TNFα-induced NF-κB activation, suggesting that costunolide as well as SLC may be promising anticancer drugs, especially for metastatic breast cancer.
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Rasul A, Bao R, Malhi M, Zhao B, Tsuji I, Li J, Li X. Induction of apoptosis by costunolide in bladder cancer cells is mediated through ROS generation and mitochondrial dysfunction. Molecules 2013; 18:1418-33. [PMID: 23348995 PMCID: PMC6269911 DOI: 10.3390/molecules18021418] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Revised: 01/15/2013] [Accepted: 01/16/2013] [Indexed: 11/16/2022] Open
Abstract
Despite the availability of several therapeutic options, a safer and more effective modality is urgently needed for treatment of bladder cancer. Costunolide, a member of sesquiterpene lactone family, possesses potent anticancer properties. In this study, for the first time we investigated the effects of costunolide on the cell viability and apoptosis in human bladder cancer T24 cells. Treatment of T24 cells with costunolide resulted in a dose-dependent inhibition of cell viability and induction of apoptosis which was associated with the generation of ROS and disruption of mitochondrial membrane potential (Δψm). These effects were significantly blocked when the cells were pretreated with N-acetyl- cysteine (NAC), a specific ROS inhibitor. Exposure of T24 cells to costunolide was also associated with increased expression of Bax, down-regulation of Bcl-2, survivin and significant activation of caspase-3, and its downstream target PARP. These findings provide the rationale for further in vivo and clinical investigation of costunolide against human bladder cancer.
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Affiliation(s)
- Azhar Rasul
- Dental Hospital, Jilin University, Changchun 130041, China
- The Key Laboratory of Molecular Epigenetics of MOE, Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China
| | - Rui Bao
- Dental Hospital, Jilin University, Changchun 130041, China
| | - Mahadev Malhi
- The Key Laboratory of Molecular Epigenetics of MOE, Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China
| | - Bing Zhao
- The Key Laboratory of Molecular Epigenetics of MOE, Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China
| | - Ichiro Tsuji
- Department of Public Health, Tohoku University, Sendai 9808576, Japan
| | - Jiang Li
- Dental Hospital, Jilin University, Changchun 130041, China
| | - Xiaomeng Li
- The Key Laboratory of Molecular Epigenetics of MOE, Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China
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Duraipandiyan V, Abdullah Al-Harbi N, Ignacimuthu S, Muthukumar C. Antimicrobial activity of sesquiterpene lactones isolated from traditional medicinal plant, Costus speciosus (Koen ex.Retz.) Sm. Altern Ther Health Med 2012; 12:13. [PMID: 22397713 PMCID: PMC3348003 DOI: 10.1186/1472-6882-12-13] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Accepted: 03/07/2012] [Indexed: 11/10/2022]
Abstract
BACKGROUND Costus speciosus (Koen ex.Retz.) Sm (Costaceae) is an Indian ornamental plant which has long been used medicinally in traditional systems of medicine. The plant has been found to possess diverse pharmacological activities. Rhizomes are used to treat pneumonia, rheumatism, dropsy, urinary diseases, jaundice, skin diseases and leaves are used to treat mental disorders. METHOD Antibacterial and antifungal activities were tested using Disc diffusion method and Minimum Inhibitory Concentration (MIC). Column chromatography was used to isolate compounds from hexane extract. X-ray crystallography technique and GC-MS analysis were used to identify the compounds RESULTS Antibacterial and antifungal activities were observed in hexane, chloroform, ethyl acetate and methanol extracts. Hexane extract of C.speciosus showed good activity against tested fungi also. Two sesquiterpenoid compounds were isolated (costunolide and eremanthin) from the hexane extract. Both the compounds did not inhibit the growth of tested bacteria. But, both the compounds inhibited the tested fungi. The compound costunolide showed significant antifungal activity. The MIC values of costunolide were; 62.5 μg/ml against Trichophyton mentagrophytes, 62. μg/ml against T. simii, 31.25 μg/ml against T. rubrum 296, 62.5 μg/ml against T. rubrum 57, 125 μg/ml against Epidermophyton floccosum, 250 μg/ml against Scopulariopsis sp, 250 μg/ml against Aspergillus niger, 125 μg/ml against Curvulari lunata, 250 μg/ml against Magnaporthe grisea. CONCLUSION Hexane extract showed promising antibacterial and antifungal activity. The isolated compound costunolide showed good antifungal activity.
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Kim JH, Yang YI, Lee KT, Park HJ, Choi JH. Costunolide induces apoptosis in human endometriotic cells through inhibition of the prosurvival Akt and nuclear factor kappa B signaling pathway. Biol Pharm Bull 2011; 34:580-5. [PMID: 21467650 DOI: 10.1248/bpb.34.580] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Endometriosis, a disease affecting 5-15% of women of reproductive age, is characterized by the ectopic growth of endometrial tissue. Costunolide, a sesquiterpene lactone, has anti-proliferative and pro-apoptotic activities that may be efficacious in therapy for endometriosis. In the present study, we investigated the effect of costunolide on the cell growth and apoptosis of endometriotic cells. We found that costunolide significantly inhibited the cell viability of 11Z and 12Z human endometriotic epithelial cells. Interestingly, endometriotic cells were more sensitive to costunolide treatment than immortalized endometrial cells (HES). Costunolide induced apoptosis of 11Z cells in a time-dependent manner as shown by accumulation of sub-G1 population. In addition, treatment with costunolide induced the activation of caspase-3, -8, and -9 in a dose- and time-dependent manner. Pretreatment with the broad caspase inhibitor z-VAD-fmk significantly reversed the costunolide-induced inhibition of cell viability in 11Z cells. We further demonstrated that costunolide inhibited the activation of Akt and nuclear factor kappa B (NFκB) and the expression of anti-apoptotic factors B-cell lymphoma-extra lage (Bcl-xL) and X-linked inhibitor of apoptosis protein (XIAP) in 11Z cells. These results suggest that costunolide induces apoptosis in human endometriotic epithelial cells by inhibiting the prosurvival NFκB and Akt pathway, leading to the downregulation of anti-apoptotic protein Bcl-xL and XIAP and the activation of caspases.
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Affiliation(s)
- Ji-Hyun Kim
- Department of Life & Nanopharamceutical Science, College of Pharmacy, Kyung Hee University, Seoul, South Korea
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16
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Yang YI, Kim JH, Lee KT, Choi JH. Costunolide induces apoptosis in platinum-resistant human ovarian cancer cells by generating reactive oxygen species. Gynecol Oncol 2011; 123:588-96. [PMID: 21945308 DOI: 10.1016/j.ygyno.2011.08.031] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2011] [Revised: 08/23/2011] [Accepted: 08/27/2011] [Indexed: 01/05/2023]
Abstract
OBJECTIVE The acquired resistance to platinum-based drugs has become an obstacle in the management of ovarian cancer. We investigated the apoptosis-inducing effect of costunolide, a natural sesquiterpene lactone, in platinum-resistant human ovarian cancer cells, along with the molecular mechanism of action. METHODS Costunolide and cisplatin were examined in platinum-resistant human ovarian cancer cells. MTT assay for cell viability, PI staining for cell cycle profiling, and Annexin V assay for apoptosis analysis. ROS production and protein expression was assessed by H(2)DCFDA staining and Western blotting, respectively. Combination effect was determined using the Combination Index (CI) method. RESULTS It was found that costunolide is more potent than cisplatin in inhibiting cell growth in three platinum-resistant ovarian cancer cell lines (MPSC1(PT), A2780(PT), and SKOV3(PT)). Costunolide induced apoptosis of platinum-resistant cells in a time- and dose-dependent manner and suppressed tumor growth in SKOV3(PT)-bearing mouse model. In addition, costunolide triggered the activation of caspase-3, -8, and -9. Pretreatment with caspase inhibitors neutralized the pro-apoptotic activity of costunolide. We further demonstrated that costunolide induced a significant increase in intracellular reactive oxygen species (ROS). Additionally, the antioxidant N-acetyl-L-cysteine (NAC) significantly attenuated the costunolide-induced production of ROS, activation of caspases, down-regulation of Bcl-2, and apoptosis in platinum-resistant ovarian cancer cells. Moreover, costunolide synergized with cisplatin to induce cell death in platinum-resistant ovarian cancer cells. CONCLUSIONS Taken together, these data suggest that costunolide, alone or in combination with cisplatin, may be of therapeutic potential in platinum-resistant ovarian cancer.
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Affiliation(s)
- Yeong-In Yang
- Department of Life & Nanopharmaceutical Science, Kyung Hee University, Seoul, Republic of Korea
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Liu Q, Majdi M, Cankar K, Goedbloed M, Charnikhova T, Verstappen FWA, de Vos RCH, Beekwilder J, van der Krol S, Bouwmeester HJ. Reconstitution of the costunolide biosynthetic pathway in yeast and Nicotiana benthamiana. PLoS One 2011; 6:e23255. [PMID: 21858047 PMCID: PMC3156125 DOI: 10.1371/journal.pone.0023255] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2011] [Accepted: 07/09/2011] [Indexed: 11/19/2022] Open
Abstract
The sesquiterpene costunolide has a broad range of biological activities and is the parent compound for many other biologically active sesquiterpenes such as parthenolide. Two enzymes of the pathway leading to costunolide have been previously characterized: germacrene A synthase (GAS) and germacrene A oxidase (GAO), which together catalyse the biosynthesis of germacra-1(10),4,11(13)-trien-12-oic acid. However, the gene responsible for the last step toward costunolide has not been characterized until now. Here we show that chicory costunolide synthase (CiCOS), CYP71BL3, can catalyse the oxidation of germacra-1(10),4,11(13)-trien-12-oic acid to yield costunolide. Co-expression of feverfew GAS (TpGAS), chicory GAO (CiGAO), and chicory COS (CiCOS) in yeast resulted in the biosynthesis of costunolide. The catalytic activity of TpGAS, CiGAO and CiCOS was also verified in planta by transient expression in Nicotiana benthamiana. Mitochondrial targeting of TpGAS resulted in a significant increase in the production of germacrene A compared with the native cytosolic targeting. When the N. benthamiana leaves were co-infiltrated with TpGAS and CiGAO, germacrene A almost completely disappeared as a result of the presence of CiGAO. Transient expression of TpGAS, CiGAO and CiCOS in N. benthamiana leaves resulted in costunolide production of up to 60 ng.g(-1) FW. In addition, two new compounds were formed that were identified as costunolide-glutathione and costunolide-cysteine conjugates.
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Affiliation(s)
- Qing Liu
- Laboratory of Plant Physiology, Wageningen University, Wageningen, The Netherlands
| | - Mohammad Majdi
- Agronomy and Plant Breeding Department, Faculty of Agriculture, University of Kurdistan, Sanandaj, Iran
| | - Katarina Cankar
- Laboratory of Plant Physiology, Wageningen University, Wageningen, The Netherlands
- Plant Research International, Wageningen, The Netherlands
| | - Miriam Goedbloed
- Laboratory of Plant Physiology, Wageningen University, Wageningen, The Netherlands
| | - Tatsiana Charnikhova
- Laboratory of Plant Physiology, Wageningen University, Wageningen, The Netherlands
| | | | - Ric C. H. de Vos
- Plant Research International, Wageningen, The Netherlands
- Centre for BioSystems Genomics, Wageningen, The Netherlands
- Netherlands Metabolomics Centre, Leiden, The Netherlands
| | - Jules Beekwilder
- Laboratory of Plant Physiology, Wageningen University, Wageningen, The Netherlands
- Plant Research International, Wageningen, The Netherlands
| | - Sander van der Krol
- Laboratory of Plant Physiology, Wageningen University, Wageningen, The Netherlands
| | - Harro J. Bouwmeester
- Laboratory of Plant Physiology, Wageningen University, Wageningen, The Netherlands
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Kim DH, Choi JH, Park HJ, Park JH, Lee KT. Costunolide Induces Apoptosis via Modulation of Cyclin-Dependent Kinase in HL-60 Human Leukemia Cells. Biomol Ther (Seoul) 2010. [DOI: 10.4062/biomolther.2010.18.2.178] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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19
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Choi JH, Lee KT. Costunolide-induced apoptosis in human leukemia cells: involvement of c-jun N-terminal kinase activation. Biol Pharm Bull 2010; 32:1803-8. [PMID: 19801848 DOI: 10.1248/bpb.32.1803] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The authors previously reported that costunolide, an active compound isolated from the stem bark of Magnolia sieboldii, induced apoptosis via reactive oxygen species (ROS) and Bcl-2-dependent mitochondrial permeability transition in human leukemia cells. In the present study, the authors investigated whether mitogen-activated protein kinases (MAPKs) are involved in the costunolide-induced apoptosis in human promonocytic leukemia U937 cells. Treatment with costunolide resulted in the significant activation of c-Jun N-terminal kinase (JNK), but not of extracellular-signal-related kinase (ERK1/2) or p38. In vitro kinase assays showed that JNK activity was low in untreated cells but increased dramatically after 30 min of costunolide treatment. U937 cells co-treated with costunolide and sorbitol, a JNK activator, exhibited higher levels of cell death. In addition, inhibition of the JNK pathway using a dominant-negative mutation of c-jun and JNK inhibitor SP600125, significantly prevented costunolide-induced apoptosis. Furthermore, pretreatment with the antioxidant NAC (N-acetyl-L-cysteine) blocked the costunolide-stimulated activation of JNK while the overexpression of Bcl-2 failed to reverse JNK activation. Pretreatment with SP600125 recovered the costunolide-suppressed Bcl-2 expression. These results indicate that costunolide-induced JNK activation acts downstream of ROS but upstream of Bcl-2, and suggest that ROS-mediated JNK activation plays a key role in costunolide-induced apoptosis. Moreover, the administration of costunolide (intraperitoneally once a day for 7 d) significantly suppressed tumor growth and increased survival in 3LL Lewis lung carcinoma-bearing model.
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Affiliation(s)
- Jung-Hye Choi
- Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Hoegi-Dong, Seoul 130-701, Republic of Korea
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20
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Normo-glycemic and hypolipidemic effect of costunolide isolated from Costus speciosus (Koen ex. Retz.)Sm. in streptozotocin-induced diabetic rats. Chem Biol Interact 2009; 179:329-34. [DOI: 10.1016/j.cbi.2008.10.017] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2008] [Revised: 10/03/2008] [Accepted: 10/13/2008] [Indexed: 11/19/2022]
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21
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Kim SH, Danilenko M, Kim TS. Differential enhancement of leukaemia cell differentiation without elevation of intracellular calcium by plant-derived sesquiterpene lactone compounds. Br J Pharmacol 2008; 155:814-25. [PMID: 18724384 DOI: 10.1038/bjp.2008.319] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND AND PURPOSE All-trans retinoic acid (ATRA) induces complete remission in a majority of acute promyelocytic leukaemia patients, but resistance of leukaemic cells to ATRA and its toxicity, such as hypercalcaemia, lead to a limitation of treatment. Therefore, combination therapies with differentiation-enhancing agents at non-toxic concentrations of ATRA may overcome its side effects. Here, we investigated the effect of plant-derived sesquiterpene lactone compounds and their underlying mechanisms in ATRA-induced differentiation of human leukaemia HL-60 cells. EXPERIMENTAL APPROACH HL-60 cells were treated with four sesquiterpene lactones (helenalin, costunolide, parthenolide and sclareolide) and cell differentiation was determined by NBT reduction, Giemsa and cytofluorometric analyses. Signalling pathways were assessed by western blotting, gel-shift assay and kinase activity determinations and intracellular calcium levels were determined using a calcium-specific fluorescent probe. KEY RESULTS Helenalin, costunolide and parthenolide, but not sclareolide, increased ATRA-induced HL-60 cell differentiation into a granulocytic lineage. Signalling kinases PKC and ERK were involved in the ATRA-induced differentiation enhanced by all of the effective sesquiterpene lactones, but JNK and PI3-K were involved in the ATRA-induced differentiation enhanced by costunolide and parthenolide. Enhancement of cell differentiation closely correlated with inhibition of NF-kappaB DNA-binding activity by all three effective compounds. Importantly, enhancement of differentiation induced by 50 nM ATRA by the sesquiterpene lactones was not accompanied by elevation of basal intracellular calcium concentrations. CONCLUSIONS AND IMPLICATIONS These results indicate that plant-derived sesquiterpene lactones may enhance ATRA-mediated cell differentiation through distinct pathways.
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Affiliation(s)
- S H Kim
- School of Life Sciences and Biotechnology, Korea University, Seoul, Korea.
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Kanno SI, Kitajima Y, Kakuta M, Osanai Y, Kurauchi K, Ujibe M, Ishikawa M. Costunolide-induced apoptosis is caused by receptor-mediated pathway and inhibition of telomerase activity in NALM-6 cells. Biol Pharm Bull 2008; 31:1024-8. [PMID: 18451540 DOI: 10.1248/bpb.31.1024] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Costunolide, isolated from the stem bark of Magnolia sieboldii, is a sesquiterpene lactone that exhibits various biological and immunological actions. We investigated the induction mechanism of apoptosis by costunolide in a human B cell leukemia NALM-6 cell culture system. Costunolide (10 microM)-induced apoptosis time-dependently increased, estimated by nuclear damage observation and flow cytometric analysis. Costunolide did not change Fas-associated factor 1 (FAF1), but the phosphorylation of Fas-associated death domain (FADD) at serine 194 increased from early treatment. The activation of caspase-8 and -9 and degradation of poly-(ADP-ribose) polymerase (PARP) was time-dependently detected by incubation with costunolide. Pretreatment of cells with caspase-3, -8 and broad spectrum caspase inhibitors significantly blocked costunolide-induced apoptosis, but caspase-9 inhibitor failed to block apoptosis. Telomerase activity was significantly suppressed after treatment with costunolide, and human telomerase reverse transcriptase (hTERT), a critical determinant of the enzyme activity of telomerase, decreased the expression of both mRNA and protein levels by costunolide. Costunolide-induced repression of telomerase was prevented by pretreatment of cells with caspase-3, -8 and broad spectrum caspase inhibitors, but caspase-9 inhibitor was no effect. These data suggest that one of the costunolide-induced apoptotic mechanisms is that the receptor-mediated pathway precedes the mitochondria-dependent pathway, caused by the inhibition of telomerase activity via suppression of hTERT in NALM-6 cells.
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Affiliation(s)
- Syu-ichi Kanno
- Department of Clinical Pharmacotherapeutics, Tohoku Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan.
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Park SY, Kim EJ, Lim DY, Kim JS, Lim SS, Shin HK, Yoon Park JH. Inhibitory Effect of the Hexane Extract of Saussurea lappa on the Growth of LNCaP Human Prostate Cancer Cells. ACTA ACUST UNITED AC 2008. [DOI: 10.3746/jkfn.2008.37.1.8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Choi SH, Im E, Kang HK, Lee JH, Kwak HS, Bae YT, Park HJ, Kim ND. Inhibitory effects of costunolide on the telomerase activity in human breast carcinoma cells. Cancer Lett 2005; 227:153-62. [PMID: 16112418 DOI: 10.1016/j.canlet.2005.01.011] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2004] [Revised: 01/07/2005] [Accepted: 01/10/2005] [Indexed: 11/29/2022]
Abstract
Costunolide, a natural sesquiterpene compound, has been known having cytotoxic and chemopreventive effects on various human cancer cells. In the present study, we examined the effects of costunolide on telomerase activity and on the components of telomerase in MCF-7 (wild-type p53) and MDA-MB-231 (mutant p53) cells. We found that costunolide inhibited the growth and telomerase activity of MCF-7 and MDA-MB-231 cells in a concentration- and time-dependent manner. The expression of hTERT mRNA was also inhibited but hTR mRNA was not. In addition, the bindings of transcription factors in hTERT promoters were significantly decreased in both cells by the treatment of costunolide. These results suggest that costunolide inhibited the growth of both MCF-7 and MDA-MB-231 cells and this effect was mediated at least in part by a significant reduction in telomerase activity.
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Affiliation(s)
- Sang-Ho Choi
- Department of Pharmacy, College of Pharmacy, and Research Institute for Drug Development, Pusan National University, Busan 609-735, South Korea
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Ko SG, Kim HP, Jin DH, Bae HS, Kim SH, Park CH, Lee JW. Saussurea lappa induces G2-growth arrest and apoptosis in AGS gastric cancer cells. Cancer Lett 2005; 220:11-9. [PMID: 15737683 DOI: 10.1016/j.canlet.2004.06.026] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2003] [Revised: 06/14/2004] [Accepted: 06/15/2004] [Indexed: 11/25/2022]
Abstract
The molecular effects of Saussurea lappa extracts, a traditional medicine in Eastern Asia, on the fate of gastric carcinoma have not been understood. In this study, its cytostatic effects were examined using gastric AGS cancer cells. Its treatment resulted in apoptosis and G2-arrest in a dose- and time-dependent manner. The effects were attributed to the regulation of cyclins and pro-apoptotic molecules and suppression of anti-apoptotic molecules. Therefore, these results suggest that extracts of S. lappa root may be a candidate to deal with gastric cancers either by traditional herbal therapy or by combinational therapy with conventional chemotherapy.
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Affiliation(s)
- Seong Gyu Ko
- Cancer Research Institute, Department of Tumor Biology, College of Medicine, Seoul National University, Seoul 110-799, South Korea
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Mori H, Yamada Y, Kuno T, Hirose Y. Aberrant crypt foci and beta-catenin accumulated crypts; significance and roles for colorectal carcinogenesis. Mutat Res 2004; 566:191-208. [PMID: 15082237 DOI: 10.1016/j.mrrev.2003.08.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2002] [Revised: 08/19/2003] [Accepted: 08/21/2003] [Indexed: 12/23/2022]
Abstract
Preneoplastic or precancerous lesions in the large bowel have been characterized in terms of morphology and histochemical phenotype. However, the detailed histogenesis and relation of particular lesions to malignancies has not yet to be unequivocally clarified. Aberrant crypt foci (ACF), identified in whole-mount preparations of colonic mucosa in rodents and also recognized in human colon, are now frequently used as effective surrogate biomarkers for experimentally detection of chemopreventive agents against colorectal cancers, but the preneoplastic or precancerous nature of ACF in rodents and humans still remains inconclusive. Relatively recently, early appearing beta-catenin accumulated crypts (BCAC) have been described in en face preparations of colonic mucosa in rodents which differ from ACF in many features. BCAC are suggested to be premalignant rather than preneoplastic. The pathological significance of both lesions, including their advantages and disadvantages as surrogate end points for large bowel neoplasms, and roles in colorectal carcinogenesis are discussed here.
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Affiliation(s)
- Hideki Mori
- Department of Tumor Pathology, Gifu University School of Medicine, 40 Tsukasa-machi, Gifu 500-8705, Japan.
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Kang JS, Yoon YD, Lee KH, Park SK, Kim HM. Costunolide inhibits interleukin-1β expression by down-regulation of AP-1 and MAPK activity in LPS-stimulated RAW 264.7 cells. Biochem Biophys Res Commun 2004; 313:171-7. [PMID: 14672714 DOI: 10.1016/j.bbrc.2003.11.109] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Costunolide, a sesquiterpene lactone isolated from the root of Saussurea lappa Clarke, is known to have a variety of biological activities, including anti-carcinogenic and anti-fungal activities. Here, we demonstrated the inhibitory effect of costunolide on the protein and mRNA expression of interleukin-1beta (IL-1beta) in LPS-stimulated RAW 264.7 cells. We also showed that costunolide suppressed the transcriptional activity of the IL-1beta promoter. Moreover, costunolide inhibited the activity of AP-1 transcription factor, and the phosphorylation of MAPKs, including SAPK/JNK and p38 MAP kinase. The inhibitory effect of costunolide on AP-1 activity was also confirmed by an electrophoretic mobility shift assay. Additionally, specific inhibitors of SAPK/JNK and p38 MAP kinase, SP600125 and SB203580, also suppressed LPS-induced increase in IL-1beta gene expression and AP-1 DNA binding. Taken together, these results demonstrate that costunolide inhibits IL-1beta gene expression by blocking the activation of MAPKs and DNA binding of AP-1 in LPS-stimulated RAW 264.7 cells.
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Affiliation(s)
- Jong Soon Kang
- Biopotency Evaluation Laboratory, Korea Research Institute of Bioscience and Biotechnology, Taejon 305-333, Republic of Korea
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Bocca C, Gabriel L, Bozzo F, Miglietta A. A sesquiterpene lactone, costunolide, interacts with microtubule protein and inhibits the growth of MCF-7 cells. Chem Biol Interact 2004; 147:79-86. [PMID: 14726154 DOI: 10.1016/j.cbi.2003.10.008] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Costunolide is an active sesquiterpene lactone of medicinal herbs with anti-inflammatory and potential anti-cancer activity. Nevertheless, the pharmacological pathways of costunolide have not yet been fully elucidated. In this study we showed that costunolide exerts a dose-dependent antiproliferative activity in the human breast cancer MCF-7 cells. In addition, light microscopy observations indicated that costunolide affected nuclear organization and reorganized microtubule architecture. The antiproliferative and antimicrotubular effects of costunolide were not influenced by paclitaxel, well-known microtubule-stabilizing anticancer agent. The microtubule-interacting activity of costunolide was confirmed by in vitro studies on purified microtubular protein. In fact, costunolide demonstrated polymerizing ability, by inducing the formation of well organized microtubule polymers. Our data suggest an interaction of costunolide with microtubules, which may represent a new intracellular target for this drug.
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Affiliation(s)
- Claudia Bocca
- Department of Experimental Medicine and Oncology, University of Torino, Corso Raffaello 30, 10125 Torino, Italy.
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Kim SH, Kim HJ, Kim TS. Differential involvement of protein kinase C in human promyelocytic leukemia cell differentiation enhanced by artemisinin. Eur J Pharmacol 2003; 482:67-76. [PMID: 14660006 DOI: 10.1016/j.ejphar.2003.09.057] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Artemisinin, a sesquiterpene lactone endoperoxide that exists in several medicinal plants, is a well-known anti-malarial agent. In this report, we investigated the effect of artemisinin on cellular differentiation in the human promyelocytic leukemia HL-60 cell culture system. Artemisinin markedly increased the degree of HL-60 leukemia cell differentiation when simultaneously combined with low doses of 1 alpha,25-dihydoxyvitamin D(3) [1,25-(OH)(2)D(3)] or all-trans retinoic acid (all-trans RA). Artemisinin by itself had very weak effects on the differentiation of HL-60 cells. Cytofluorometric analysis and cell morphologic studies indicated that artemisinin potentiated 1,25-(OH)(2)D(3)-induced cell differentiation predominantly into monocytes and all-trans RA-induced cell differentiation into granulocytes, respectively. Extracellular-regulated kinase (ERK) inhibitors markedly inhibited HL-60 cell differentiation induced by artemisinin in combination with 1,25-(OH)(2)D(3) or all-trans RA, whereas phosphatidylinositol 3-kinase (PI3-K) inhibitors did not. Particularly, protein kinase C (PKC) inhibitors inhibited HL-60 cell differentiation induced by artemisinin in combination with 1,25-(OH)(2)D(3) but not with all-trans RA. Artemisinin enhanced PKC activity and protein level of PKC beta I isoform in only 1,25-(OH)(2)D(3)-treated HL-60 cells. Taken together, these results indicate that artemisinin strongly enhanced 1,25-(OH)(2)D(3)- and all-trans RA-induced cell differentiation in which PKC is differentially involved in arteminisin-mediated enhancement of leukemia cell differentiation.
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Affiliation(s)
- Seung Hyun Kim
- College of Pharmacy and Research Institute of Drug Development, Chonnam National University, Kwangju 500-757, South Korea
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Akihisa T, Yasukawa K, Tokuda H. Potentially Cancer Chemopreventive And Anti-Inflammatory Terpenoids From Natural Sources. BIOACTIVE NATURAL PRODUCTS (PART J) 2003. [DOI: 10.1016/s1572-5995(03)80005-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Choi JH, Ha J, Park JH, Lee JY, Lee YS, Park HJ, Choi JW, Masuda Y, Nakaya K, Lee KT. Costunolide triggers apoptosis in human leukemia U937 cells by depleting intracellular thiols. Jpn J Cancer Res 2002; 93:1327-33. [PMID: 12495472 PMCID: PMC5926928 DOI: 10.1111/j.1349-7006.2002.tb01241.x] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
We have previously demonstrated that costunolide, a biologically active compound that was isolated from the stem bark of Magnolia sieboldii, induced apoptosis in human cancer cells. In the present study, we investigated the underlying mechanisms and suggest that costunolide induces apoptosis in human promonocytic leukemia U937 cells by depleting the intracellular thiols. Costunolide treatment rapidly depleted the intracellular reduced glutathione (GSH) and protein thiols, and this preceded the occurrence of apoptosis. Pretreatment with sulfhydryl compounds such as GSH, N-acetyl-L-cysteine, dithiothreitol and 2-mercaptoethanol almost completely blocked the costunolide-induced apoptosis, highlighting the significance of the intracellular thiol level in the process. Furthermore, overexpression of Bcl-2 also significantly attenuated the effects of costunolide. The apoptosis-inducing activity of costunolide is likely to depend on the exomethylene moiety because derivatives in which this group was reduced, such as dihydrocostunolide and saussurea lactone, did not deplete the cellular thiols and showed no apoptotic activity. Taken together, the present study demonstrates that the costunolide-induced apoptosis depends on intracellular thiols contents, which are modulated by Bcl-2.
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Affiliation(s)
- Jung-Hye Choi
- College of Pharmacy, Kyung-Hee University, Hoegi-Dong, Dongdaemun-Ku, Seoul 130-701, Korea
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Kim SH, Kang SN, Kim HJ, Kim TS. Potentiation of 1,25-dihydroxyvitamin D(3)-induced differentiation of human promyelocytic leukemia cells into monocytes by costunolide, a germacranolide sesquiterpene lactone. Biochem Pharmacol 2002; 64:1233-42. [PMID: 12234604 DOI: 10.1016/s0006-2952(02)01292-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Costunolide, a germacranolide sesquiterpene lactone that exists in several medicinal plants, is known to be a possible anti-cancer and chemopreventive agent for tumorigenesis. In this report, we investigated the effect of costunolide on cellular differentiation in the human promyelocytic leukemia HL-60 cell culture system. Costunolide markedly increased the degree of HL-60 leukemia cell differentiation when simultaneously combined with 5nM 1,25-dihydroxyvitamin D(3) (1,25-(OH)(2)D(3)). Costunolide by itself had very weak effects on the differentiation of HL-60 cells. Cytofluorometric analysis and cell morphologic studies indicated that costunolide potentiated 1,25-(OH)(2)D(3)-induced cell differentiation predominantly into monocytes. Inhibitors for PKC, PI3-K, and ERK markedly inhibited HL-60 cell differentiation induced by costunolide in combination with 1,25-(OH)(2)D(3). In addition, pretreatment of HL-60 cells with costunolide before the 1,25-(OH)(2)D(3) addition also potentiated cell differentiation in a concentration- and time-dependent manner, and the enhanced levels of cell differentiation closely correlated with the inhibitory levels of NF-kappaB-binding activity by costunolide. These results indicate that PKC, PI3-K, ERK and NF-kappaB may be involved in 1,25-(OH)(2)D(3)-mediated cell differentiation enhanced by costunolide.
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Affiliation(s)
- Seung H Kim
- Immunology Laboratory, College of Pharmacy and Research Institute of Drug Development, Chonnam National University, Kwangju, South Korea
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33
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Choi JH, Seo BR, Seo SH, Lee KT, Park JH, Park HJ, Choi JW, Itoh Y, Miyamoto KI. Costunolide induces differentiation of human leukemia HL-60 cells. Arch Pharm Res 2002; 25:480-4. [PMID: 12214860 DOI: 10.1007/bf02976606] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Costunolide has been reported to be a cytotoxic and chemopreventive agent. This work investigated the mechanism of the antiproliferative effect of costunolide and determined that it induced differentiation of the human leukemia cell line HL-60. Costunolide exhibited a potent antiproliferative activity against HL-60 cells. It was also found to be a potent inducer of differentiation in human leukemia derived HL-60 cells through the examination of differentiation markers, as assessed by the reduction of nitroblue-tetrazolium, the increase in esterase activities and phagocytic activity, morphology change and the expression of CD14 and CD66b surface antigens. These results, accompanied by a decline in the expression of c-myc protein, suggest that costunolide induces differentiation of human leukemia cells to granulocytes and monocytes/macrophages lineage.
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Affiliation(s)
- Jung-Hye Choi
- College of Pharmacy, Kyung Hee University, Seoul, Korea
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34
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Fukuda K, Akao S, Ohno Y, Yamashita K, Fujiwara H. Inhibition by costunolide of phorbol ester-induced transcriptional activation of inducible nitric oxide synthase gene in a human monocyte cell line THP-1. Cancer Lett 2001; 164:7-13. [PMID: 11166910 DOI: 10.1016/s0304-3835(00)00704-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Costunolide, the predominant sesquiterpene lactone in Saussureae radix, has been reported to exhibit potent chemopreventive effects on carcinogenesis. Effects of costunolide on cellular activation induced by a tumor-promoting phorbol ester 12-O-tetradecanoylphorbol-13-acetate (TPA) were investigated using a reporter gene assay which was designed to reflect the promoter activity of the inducible nitric oxide synthase (iNOS) gene in a human monocyte cell line THP-1. iNOS promoter-dependent reporter gene activity was significantly increased by TPA, and the TPA-induced increase of the reporter gene activity was efficiently reduced by costunolide, with an IC50 of approximately 2 microM. The addition of sulfhydryl (SH) compounds effectively abrogated the inhibitory effects of costunolide, suggesting the involvement of its reactivity with SH groups of target proteins and/or thiol-depleting property. The present findings may further explain the cancer-preventive property of costunolide.
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Affiliation(s)
- K Fukuda
- Department of Oriental Medicine, Gifu University School of Medicine, 40 Tsukasa-machi, Gifu 500-8705, Japan.
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35
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Lee MG, Lee KT, Chi SG, Park JH. Costunolide induces apoptosis by ROS-mediated mitochondrial permeability transition and cytochrome C release. Biol Pharm Bull 2001; 24:303-6. [PMID: 11256490 DOI: 10.1248/bpb.24.303] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Costunolide is an active compound isolated from the root of Saussurea lappa Clarks, a Chinese medicinal herb, and is considered a therapeutic candidate for various types of cancers. Nevertheless, the pharmacological pathways of costunolide are still unknown. In this study, we investigate the effects of costunolide on the induction of apoptosis in HL-60 human leukemia cells and its putative pathways of action. Using apoptosis analysis, measurement of reactive oxygen species (ROS), and assessment of mitochondrial membrane potentials, we show that costunolide is a potent inducer of apoptosis, and facilitates its activity via ROS generation, thereby inducing mitochondrial permeability transition (MPT) and cytochrome c release to the cytosol. ROS production, mitochondrial alteration, and subsequent apoptotic cell death in costunolide-treated cells were blocked by the antioxidant N-acetylcystein (NAC). Cyclosporin A, a permeability transition inhibitor, also inhibited mitochondrial permeability transition and apoptosis. Our data indicate that costunolide induces the ROS-mediated mitochondrial permeability transition and resultant cytochrome c release. This is the first report on the mechanism of the anticancer effect of costunolide.
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Affiliation(s)
- M G Lee
- Department of Pathology, College of Medicine, Kyung Hee University, Seoul, Korea
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Abstract
Control of cell proliferation is important for cancer prevention since cell proliferation has essential roles in carcinogenesis including the process of initiation and promotion. In rodent models for carcinogenesis, especially those for the carcinogenesis in digestive organs such as colon, liver or oral cavity, chemopreventive agents suppress carcinogen-induced hyperproliferation of cells in the target organs during the initiation as well as the postinitiation phases. Therefore, effective agents usually suppress cell proliferation and inhibit the occurrence of malignant lesions. Availability of new biomarkers for cell proliferation, apoptosis or telomerase activity could be promising. By combining the use of intermediate biomarkers including premalignant lesions such as aberrant crypt foci in the colon or enzyme-altered foci in the liver and cell proliferation, short-term screening of effective chemopreventive agents will be possible.
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Affiliation(s)
- H Mori
- Department of Pathology, Gifu University School of Medicine, 40 Tsukasa-machi, Gifu, Japan
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37
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Sugie S, Okamoto K, Rahman KM, Tanaka T, Kawai K, Yamahara J, Mori H. Inhibitory effects of plumbagin and juglone on azoxymethane-induced intestinal carcinogenesis in rats. Cancer Lett 1998; 127:177-83. [PMID: 9619875 DOI: 10.1016/s0304-3835(98)00035-4] [Citation(s) in RCA: 121] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The effects of two naphthoquinones, juglone and plumbagin, and an isocoumarin, hydrangenol, on intestinal carcinogenesis in rats were examined by dietary exposure during the initiation phase. Starting at 5 weeks of age, male F344 rats were fed the diets containing either of the test chemicals at a concentration of 200 ppm or the control diet without the compounds. At 6 weeks of age, all animals were treated with s.c. injections of azoxymethane (AOM) (15 mg/kg body weight, once weekly for 3 weeks) or saline alone. Animals fed experimental diets were changed to the control diet 1 week after the last carcinogen treatment. Animals given plumbagin together with the carcinogen had a lower incidence (41%) and smaller multiplicity (0.48 +/- 0.62) of tumors in the entire intestine compared with those exposed to carcinogen alone (68% and 1.04 +/- 0.62) (P < 0.05 and < 0.01, respectively). The incidence and multiplicity of tumors in the small intestine (7% and 0.07 +/- 0.25) and the multiplicity of tumors in the entire intestine (0.60 +/- 0.76) of animals treated with juglone and the carcinogen were significantly less than those of animals treated with carcinogen alone (P < 0.05 in each). Hydrangenol tended to decrease the incidence and the multiplicity of tumors in the entire intestine induced by AOM, but the effect was not statistically significant. The present data suggest that the naphthoquinones, juglone and plumbagin, could be promising chemopreventive agents for human intestinal neoplasia.
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Affiliation(s)
- S Sugie
- Institute of Laboratory Animals, and Department of Pathology, Gifu University School of Medicine, Gifu-City, Japan.
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Ohnishi M, Yoshimi N, Kawamori T, Ino N, Hirose Y, Tanaka T, Yamahara J, Miyata H, Mori H. Inhibitory effects of dietary protocatechuic acid and costunolide on 7,12-dimethylbenz[a]anthracene-induced hamster cheek pouch carcinogenesis. Jpn J Cancer Res 1997; 88:111-9. [PMID: 9119738 PMCID: PMC5921359 DOI: 10.1111/j.1349-7006.1997.tb00355.x] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The modifying effects of dietary exposure to two natural products, protocatechuic acid (PCA) and costunolide during the development of neoplasms in oral carcinogenesis initiated with 7,12-dimethylbenz[a]anthracene (DMBA) were investigated in male Syrian golden hamsters. All hamsters except those in the test chemical alone and control groups received DMBA (0.5%) in mineral oil to the right buccal pouch 3 times per week for 4 or 6 weeks. At 13 weeks of age, the groups exposed to DMBA were fed diet containing PCA or costunolide at a dose of 0.2 g/kg diet (200 ppm) for 17 weeks. The other groups consisted of hamsters given mineral oil alone for 6 weeks, or given 200 ppm PCA or costunolide alone, or untreated. All animals were necropsied at the termination of the experiment (week 24). PCA or costunolide significantly decreased the tumor burden (P < 0.001-P < 0.05) and the extent of dysplastic areas (%) (P < 0.001-P < 0.05). PCA significantly decreased the mean number of AgNORs/nucleus (P < 0.05). The BrdUrd-labeling index was reduced by dietary administration of test compounds, though not significantly. These results suggest that PCA and costunolide inhibited hamster buccal pouch carcinogenesis and such inhibition may be related to suppression of cell proliferation in the buccal mucosa. It was also found that telomerase activity expressed in neoplastic and preneoplastic lesions of hamster buccal pouch epithelium after DMBA treatment correlated with the histopathological degree of malignancy.
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Affiliation(s)
- M Ohnishi
- First Department of Pathology, Gifu University School of Medicine
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Mori H, Tanaka T, Sugie S, Yoshimi N, Kawamori T, Hirose Y, Ohnishi M. Chemoprevention by naturally occurring and synthetic agents in oral, liver, and large bowel carcinogenesis. J Cell Biochem 1997. [DOI: 10.1002/(sici)1097-4644(1997)27+<35::aid-jcb8>3.0.co;2-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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