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Thamnium S, Laomeephol C, Pavasant P, Osathanon T, Tabata Y, Wang C, Luckanagul JA. Osteogenic induction of asiatic acid derivatives in human periodontal ligament stem cells. Sci Rep 2023; 13:14102. [PMID: 37644086 PMCID: PMC10465493 DOI: 10.1038/s41598-023-41388-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 08/25/2023] [Indexed: 08/31/2023] Open
Abstract
Asiatic acid (AA) and asiaticoside, pentacyclic triterpenoid compounds derived from Centella asiatica, are known for their biological effects in promoting type I collagen synthesis and inducing osteogenesis of stem cells. However, their applications in regenerative medicine are limited due to their low potency and poor aqueous solubility. This work aimed to evaluate the osteogenic induction activity of AA derivatives in human periodontal ligament stem cells (hPDLSCs) in vitro. Four compounds were synthesised, namely 501, 502, 503, and 506. AA was used as the control. The 502 exhibited low water solubility, while the 506 compound showed the highest. The cytotoxicity analysis demonstrated that 503 caused significant deterioration in cell viability, while other derivatives showed no harmful effect on hPDLSCs. The dimethyl aminopropyl amine derivative of AA, compound 506, demonstrated a relatively high potency in inducing osteogenic differentiation. An elevated mRNA expression of osteogenic-related genes, BMP2, WNT3A, ALP, OSX and IBSP was observed with 506. Additionally, the expression of BMP-2 protein was enhanced with increasing dose of 506, and the effect was pronounced when the Erk signalling molecule was inhibited. The 506 derivative was proposed for the promotion of osteogenic differentiation in hPDLSCs by upregulating BMP2 via the Erk signalling pathway. The 506 molecule showed promise in bone tissue regeneration.
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Affiliation(s)
- Sirikool Thamnium
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Chavee Laomeephol
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
- Center of Excellence in Biomaterial Engineering in Medical and Health, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Prasit Pavasant
- Center of Excellence in Regenerative Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
- Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Thanaphum Osathanon
- Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
- Dental Stem Cell Biology Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Yasuhiko Tabata
- Laboratory of Biomaterials, Institute for Life and Medical Sciences, Kyoto University, 53 Kawara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Chao Wang
- Chengdu Institute of Biology, Chinese Academy of Sciences, P.O. Box 416, Chengdu, 6100641, Sichuan, People's Republic of China
- School of Food and Bioengineering, Xihua University, Chengdu, 610039, People's Republic of China
| | - Jittima A Luckanagul
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand.
- Center of Excellence in Biomaterial Engineering in Medical and Health, Chulalongkorn University, Bangkok, 10330, Thailand.
- Center of Excellence in Plant-Produced Pharmaceuticals, Chulalongkorn University, Bangkok, 10330, Thailand.
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Jiang P, Fu X, Niu H, Chen S, Liu F, Luo Y, Zhang D, Lei H. Recent advances on Pestalotiopsis genus: chemistry, biological activities, structure-activity relationship, and biosynthesis. Arch Pharm Res 2023:10.1007/s12272-023-01453-2. [PMID: 37389739 DOI: 10.1007/s12272-023-01453-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 06/21/2023] [Indexed: 07/01/2023]
Abstract
Strains of the fungal genus Pestalotiopsis are reported as large promising sources of structurally varied biologically active metabolites. Many bioactive secondary metabolites with diverse structural features have been derived from Pestalotiopsis. Moreover, some of these compounds can potentially be developed into lead compounds. Herein, we have systematically reviewed the chemical constituents and bioactivities of the fungal genus Pestalotiopsis, covering a period ranging from January 2016 to December 2022. As many as 307 compounds, including terpenoids, coumarins, lactones, polyketides, and alkaloids, were isolated during this period. Furthermore, for the benefit of readers, the biosynthesis and potential medicinal value of these new compounds are also discussed in this review. Finally, the perspectives and directions for future research and the potential applications of the new compounds are summarized in various tables.
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Affiliation(s)
- Peng Jiang
- Key Laboratory of Tropical Marine Bioresources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, China
| | - Xiujuan Fu
- School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Hong Niu
- School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Siwei Chen
- School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Feifei Liu
- School of Life Sciences, Jiangsu Normal University, Xuzhou, 221116, Jiangsu, China
| | - Yu Luo
- School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Dan Zhang
- School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, China.
| | - Hui Lei
- School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, China.
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3
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Hamedi A, Bayat M, Asemani Y, Amirghofran Z. A review of potential anti-cancer properties of some selected medicinal plants grown in Iran. J Herb Med 2022. [DOI: 10.1016/j.hermed.2022.100557] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Zhu Z, Cui L, Yang J, Vong CT, Hu Y, Xiao J, Chan G, He Z, Zhong Z. Anticancer effects of asiatic acid against doxorubicin-resistant breast cancer cells via an AMPK-dependent pathway in vitro. PHYTOMEDICINE 2021; 92:153737. [PMID: 34560519 DOI: 10.1016/j.phymed.2021.153737] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 08/04/2021] [Accepted: 09/05/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND PURPOSE Asiatic acid is one of the active compounds isolated from Centella asiatica and has been used to treat many diseases, including hypertension, pulmonary fibrosis, and cancer. It exhibits anticancer effects in many cancers, such as ovarian, lung and colon cancer; however, its anticancer effects in breast cancer and the underlying mechanism are not fully understood. Chemoresistance is often induced after the use of chemotherapy, and it is a challenging problem in cancer therapy. The effects of asiatic acid on chemoresistance in breast cancer have never been studied. Therefore, the aim of the present study was to examine the anticancer effects of asiatic acid in doxorubicin-resistant breast cancer MCF-7 cells. METHODS The cells were incubated with asiatic acid at 0-160 μM for 2-24 h. Cell viability and cytotoxicity were evaluated by 3-[4, 5-dimethyl-2-thiazolyl]-2,5-diphenyltetrazolium bromide (MTT) and lactate dehydrogenase (LDH) assays. Florescent images were taken using a confocal microscope. P-gp function and apoptosis assays were performed using flow cytometry. Caspase activity was measured with the Caspase-Glo™ Assay System. The phosphorylation and expression of relevant proteins were assessed by western blots. Molecular docking was performed and scored by AutoDock. Cellular thermal shift assay (CETSA) was applied for experimental valuation. RESULTS Our data demonstrated that asiatic acid induced cell death in multiple ways, including reactive oxygen species production, adenosine triphosphate (ATP) content reduction, and adaptive immunity balance via intrinsic apoptosis, AMP-activated protein kinase (AMPK), programmed death-ligand 1 (PD-L1), and indirect nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) transcriptional pathways, using experimental validation and in silico analysis. Moreover, asiatic acid also enhanced the sensitivity of doxorubicin-resistant MCF-7 cells to doxorubicin by improving P-glycoprotein (P-gp) function. CONCLUSIONS This study provides evidence that asiatic acid has strong anticancer effects to reverse multidrug resistance and could be developed as a promising adjuvant drug for the treatment of chemoresistant cancer.
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Affiliation(s)
- Zhu Zhu
- China-America Cancer Research Institute, Guangdong Medical University, Dongguan 523808, Guangdong, China
| | - Liao Cui
- Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang 524023, Guangdong, China
| | - Jing Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China
| | - Chi Teng Vong
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China
| | - Yuanjia Hu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China
| | - Jianbo Xiao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China
| | - Ging Chan
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China
| | - Zhiwei He
- China-America Cancer Research Institute, Guangdong Medical University, Dongguan 523808, Guangdong, China.
| | - Zhangfeng Zhong
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China.
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Tian M, Chen K, Huang J, Chu D, Li J, Huang K, Ma C. Asiatic acid inhibits angiogenesis and vascular permeability through the VEGF/VEGFR2 signaling pathway to inhibit the growth and metastasis of breast cancer in mice. Phytother Res 2021; 35:6389-6400. [PMID: 34541711 DOI: 10.1002/ptr.7292] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 08/28/2021] [Accepted: 09/04/2021] [Indexed: 12/28/2022]
Abstract
Anti-angiogenic medicines have been evaluated as anticancer therapies, however, their use remains limited in clinical practice due to associated adverse effects. Asiatic acid (AA) is known to have broad-spectrum anticancer properties, however, its effects on angiogenesis in breast cancer remain to be fully established. In this study, we analyzed the inhibitory effects of AA on angiogenesis using human umbilical vein endothelial cells (HUVECs) cultured in vitro and on the growth and metastasis of a subcutaneous breast cancer 4T1 tumor model and a lung metastasis model in vivo. AA significantly inhibited HUVECs proliferation, migration, and tube formation in vitro. In vivo, AA significantly reduced the microvascular density and blood vascular permeability in breast cancer tumors and inhibited growth and lung metastasis. AA inhibited the expression of vascular endothelial growth factor (VEGF) in HUVECs and subsequently downregulated the phosphorylation of vascular endothelial growth factor receptor 2 (VEGFR2) and its downstream target proteins including ERK1/2, Src, and FAK. These results indicate that AA significantly inhibits angiogenesis and blood vessel permeability through the VEGF/VEGFR2 signal axis to inhibit the growth and metastasis of breast cancer. Our data strongly demonstrate the potential applications of AA in the treatment of breast cancer.
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Affiliation(s)
- Miaomiao Tian
- First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China.,Graduated School of Jinzhou Medical University, Jinzhou, China
| | - Kan Chen
- First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Jianhua Huang
- First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China.,Life Science Institute of Jinzhou Medical University, Jinzhou, China
| | - Dongqing Chu
- Graduated School of Jinzhou Medical University, Jinzhou, China
| | - Jialin Li
- First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China.,Graduated School of Jinzhou Medical University, Jinzhou, China
| | - Keqiang Huang
- Second Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Chunyu Ma
- First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
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Actions and Therapeutic Potential of Madecassoside and Other Major Constituents of Centella asiatica: A Review. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11188475] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Centella asiatica is a popular herb well-known for its wide range of therapeutic effects and its use as a folk medicine for many years. Its therapeutic properties have been well correlated with the presence of asiaticoside, madecassoside, asiatic and madecassic acids, the pentacyclic triterpenes. The herb has been extensively known to treat skin conditions; nevertheless, several pre-clinical and clinical studies have scientifically demonstrated its effectiveness in other disorders. Among the active constituents that have been identified in Centella asiatica, madecassoside has been the subject of only a relatively small number of scientific reports. Therefore, this review, while including other major constituents of this plant, focuses on the therapeutic potential, pharmacokinetics and toxicity of madecassoside.
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Islam MT, Ali ES, Uddin SJ, Khan IN, Shill MC, de Castro E Sousa JM, de Alencar MVOB, Melo-Cavalcante AAC, Mubarak MS. Anti-Cancer Effects of Asiatic Acid, a Triterpene from Centilla asiatica L: A Review. Anticancer Agents Med Chem 2021; 20:536-547. [PMID: 31823705 DOI: 10.2174/1871520619666191211103006] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 10/05/2019] [Accepted: 11/21/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Centilla asiatica L is a medicinal herb that has been widely used in folk medicine to treat various diseases. Asiatic Acid (AA), a triterpene and a known component of this herb, has been shown to display important biological activities, including anti-inflammatory, antibacterial, antidiabetic and antihyperlipidemic, neuroprotective, anxiolytic and antidepressant, hepatoprotective, pancreas protective, and cardio- protective. OBJECTIVE This review focuses on AA's anti-cancer effects on the basis of published literature found in a number of databases such as PubMed and Science Direct. Emphasis has been given to the mechanisms of action of its anti-cancer effect. METHODS A literature survey was conducted using known databases such as PubMed and Science Direct using the keywords 'Asiatic acid', pairing with 'cancer', 'tumor', 'anti-cancer effect', 'cytotoxic effect', 'anti-tumor activity', 'cell line', 'animal cancer', and 'human cancer'. RESULTS Findings suggest that AA exerts anti-cancer effects in several test systems through various pathways, including oxidative/antioxidant, anti-inflammatory, cytotoxicity, apoptotic cell death, necrosis, anti-angiogenesis, inhibition of proliferation and cell migration, and chemoprevention. CONCLUSION AA may be an effective plant-based cancer chemotherapeutic agent and a promising lead for the development of potent anticancer drugs.
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Affiliation(s)
- Muhammad T Islam
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City-700000, Vietnam.,Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City-700000, Vietnam
| | - Eunus S Ali
- Gaco Pharmaceuticals Limited, Dhaka-1000, Bangladesh.,College of Medicine and Public Health, Flinders University, Bedford Park-5042, Adelaide, Australia
| | - Shaikh J Uddin
- Pharmacy Discipline, Life Science School, Khulna University, Khulna-9208, Bangladesh
| | - Ishaq N Khan
- Institute of Basic Medical Sciences, Khyber Medical University, Peshawar, 25000, Pakistan
| | - Manik C Shill
- Department of Pharmaceutical Sciences, North South University, Bashundhara, Dhaka, 1229, Bangladesh
| | - João M de Castro E Sousa
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Piaui, Teresina, 64 049-550, Brazil.,Department of Biological Sciences, Federal University of Piauí, Picos, Piauí, 64 067-670, Brazil
| | | | - Ana A C Melo-Cavalcante
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Piaui, Teresina, 64 049-550, Brazil
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Cui Q, Ren J, Zhou Q, Yang Q, Li B. Effect of asiatic acid on epithelial-mesenchymal transition of human alveolar epithelium A549 cells induced by TGF-β1. Oncol Lett 2019; 17:4285-4292. [PMID: 30988806 PMCID: PMC6447948 DOI: 10.3892/ol.2019.10140] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 01/25/2019] [Indexed: 12/13/2022] Open
Abstract
Asiatic acid (AA) is a pentacyclic triterpenoid isolated from Centella asiatica (L.) Urban that possesses significant antitumor activities. In the present study, the mechanism of AA on transforming growth factor-β1 (TGF-β1)-induced epithelial-mesenchymal transition (EMT) was investigated in the lung cancer cell line A549. To do so, cell morphological alterations were observed and recorded at different time periods. Cells treated with TGF-β1 were spindle-shaped and characterized as stromal cells, whereas AA-treated cells exhibited epithelial cell characteristics and increased intercellular adhesion. The MTT assay demonstrated that the high concentration of AA inhibited the viability of A549 cells treated with TGF-β. In addition, the wound healing and Transwell assays revealed that AA inhibited TGF-β1-induced invasion and migration of A549 cells. Furthermore, AA treatment increased the mRNA and protein expression levels of E-cadherin, and decreased the expression levels of snail family transcriptional repressor (Snail), N-cadherin, vimentin and β-catenin in TGF-β1-treated A549 cells. In conclusion, these results suggested that AA may inhibit TGF-β1-induced EMT in lung cancer through increased expression of E-cadherin, and inhibition of Snail, N-cadherin and vimentin expression.
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Affiliation(s)
- Qingrong Cui
- Department of Respiration, The First Affiliated Hospital of Henan University of CM, Zhengzhou, Henan 450000, P.R. China
| | - Juan Ren
- Department of Oncology, Hangzhou Third Hospital, Hangzhou, Zhejiang 310009, P.R. China
| | - Qingwei Zhou
- Department of Respiration, The First Affiliated Hospital of Henan University of CM, Zhengzhou, Henan 450000, P.R. China
| | - Qinmei Yang
- Department of Respiration, The First Affiliated Hospital of Henan University of CM, Zhengzhou, Henan 450000, P.R. China
| | - Bin Li
- Department of Respiration, The First Affiliated Hospital of Henan University of CM, Zhengzhou, Henan 450000, P.R. China
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Nagoor Meeran MF, Goyal SN, Suchal K, Sharma C, Patil CR, Ojha SK. Pharmacological Properties, Molecular Mechanisms, and Pharmaceutical Development of Asiatic Acid: A Pentacyclic Triterpenoid of Therapeutic Promise. Front Pharmacol 2018; 9:892. [PMID: 30233358 PMCID: PMC6131672 DOI: 10.3389/fphar.2018.00892] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 07/23/2018] [Indexed: 12/16/2022] Open
Abstract
Asiatic acid (AA) is a naturally occurring aglycone of ursane type pentacyclic triterpenoids. It is abundantly present in many edible and medicinal plants including Centella asiatica that is a reputed herb in many traditional medicine formulations for wound healing and neuropsychiatric diseases. AA possesses numerous pharmacological activities such as antioxidant and anti-inflammatory and regulates apoptosis that attributes its therapeutic effects in numerous diseases. AA showed potent antihypertensive, nootropic, neuroprotective, cardioprotective, antimicrobial, and antitumor activities in preclinical studies. In various in vitro and in vivo studies, AA found to affect many enzymes, receptors, growth factors, transcription factors, apoptotic proteins, and cell signaling cascades. This review aims to represent the available reports on therapeutic potential and the underlying pharmacological and molecular mechanisms of AA. The review also also discusses the challenges and prospects on the pharmaceutical development of AA such as pharmacokinetics, physicochemical properties, analysis and structural modifications, and drug delivery. AA showed favorable pharmacokinetics and found bioavailable following oral or interaperitoneal administration. The studies demonstrate the polypharmacological properties, therapeutic potential and molecular mechanisms of AA in numerous diseases. Taken together the evidences from available studies, AA appears one of the important multitargeted polypharmacological agents of natural origin for further pharmaceutical development and clinical application. Provided the favorable pharmacokinetics, safety, and efficacy, AA can be a promising agent or adjuvant along with currently used modern medicines with a pharmacological basis of its use in therapeutics.
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Affiliation(s)
- Mohamed Fizur Nagoor Meeran
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | | | - Kapil Suchal
- Department of Pharmacology, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, India
| | - Charu Sharma
- Department of Internal Meicine, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Chandragouda R. Patil
- Department of Pharmacology, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, India
| | - Shreesh K. Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
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Anti inflammatory effect of asiaticoside on human umbilical vein endothelial cells induced by ox-LDL. Cytotechnology 2018; 70:855-864. [PMID: 29460197 DOI: 10.1007/s10616-018-0198-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Accepted: 01/24/2018] [Indexed: 01/11/2023] Open
Abstract
Early diagnosis and changes associated with atherosclerosis are crucial in clinical medicine. However, atherosclerosis is a multifactorial disease. Asiaticoside (AA), a triterpenoid derived from Centella asiatica, has anti-inflammatory activity. Endothelium-derived nitric oxide is important in modulating vascular tone in a distinct vessel size-dependent manner; it plays a dominant role in conduit arteries and endothelium-dependent hyperpolarisation in resistance vessels. This study evaluated the effects of AA administration on human umbilical endothelial cells with oxidised low-density lipoprotein-induced inflammation. We measured the levels of intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1). Our results indicated that 10-30 μM AA modulated endothelial hyper permeability, adenosine triphosphate levels, ICAM-1 expression, VCAM-1 expression, E-selectin levels, and PECAM-1 expression to 90% (p < 0.005), 80% (p < 0.05), 105% (p < 0.01), 65% (p < 0.005), 70% (p < 0.05), and 105% (p < 0.01), respectively. Taken together, our data suggest that AA inhibits the augmentation of endothelial permeability, thus preventing the early events of atherosclerosis.
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11
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Tuyen PT, Xuan TD, Tu Anh TT, Mai Van T, Ahmad A, Elzaawely AA, Khanh TD. Weed Suppressing Potential and Isolation of Potent Plant Growth Inhibitors from Castanea crenata Sieb. et Zucc. Molecules 2018; 23:molecules23020345. [PMID: 29414866 PMCID: PMC6017574 DOI: 10.3390/molecules23020345] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 02/02/2018] [Accepted: 02/05/2018] [Indexed: 12/13/2022] Open
Abstract
This study isolated, determined, and quantified plant growth inhibitors in Japanese chestnut (Castanea crenata Sieb. et Zucc), a deciduous species native to Japan and Korea. In laboratory assays, C. crenata leaves showed strong inhibition on germination and seedling growth of Echinochloa crus-galli (barnyardgrass), Lactuca sativa (lettuce), and Raphanus sativus (radish). Laboratory and greenhouse trials showed that leaves of C. crenata appeared as a promising material to manage weeds, especially the dicot weeds. By GC-MS and HPLC analyses, gallic, protocatechuic, p-hydroxybenzoic, caffeic, ferulic, ellagic, and cinnamic acids were identified and quantified, of which ellagic acid was present in the highest quantity (2.36 mg/g dried leaves). By column chromatography and spectral data (1H- and 13C-NMR, IR, and LC-MS) analysis, a compound identified as 2α,3β,7β,23-tetrahydroxyurs-12-ene-28-oic acid (1) was purified from the methanolic leaf extract of C. crenata (0.93 mg/g dried leaves). This constituent showed potent inhibition on growth of E. crus-galli, a problematic weed in agricultural practice. The inhibition of the compound 1 (IC50 = 2.62 and 0.41 mM) was >5 fold greater than that of p-hydroxybenzoic acid (IC50 = 15.33 and 2.11 mM) on shoot and root growth of E. crus-galli, respectively. Results suggest that the isolated the compound 1 has potential to develop natural herbicides to manage E. crus-galli. This study is the first to isolate and identify 2α,3β,7β,23-tetrahydroxyurs-12-ene-28-oic acid in a plant and report its plant growth inhibitory potential.
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Affiliation(s)
- Phung Thi Tuyen
- Faculty of Forest Resources and Environmental Management, Vietnam National University of Forestry, Xuan Mai, Hanoi 156200, Vietnam.
- Graduate School for International Development and Cooperation, Hiroshima University, Higashi Hiroshima, Hiroshima 739-829, Japan.
| | - Tran Dang Xuan
- Graduate School for International Development and Cooperation, Hiroshima University, Higashi Hiroshima, Hiroshima 739-829, Japan.
| | - Truong Thi Tu Anh
- Graduate School for International Development and Cooperation, Hiroshima University, Higashi Hiroshima, Hiroshima 739-829, Japan.
| | - Truong Mai Van
- Graduate School for International Development and Cooperation, Hiroshima University, Higashi Hiroshima, Hiroshima 739-829, Japan.
| | - Ateeque Ahmad
- Chemical Engineering, CSIR, CIMAP, Kukrail Picnic Spot Road, Lucknow 226015, India.
| | | | - Tran Dang Khanh
- Department of Genetic Engineering, Agricultural Genetics Institute, Pham Van Dong Street, Hanoi 122300, Vietnam.
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Lv J, Sharma A, Zhang T, Wu Y, Ding X. Pharmacological Review on Asiatic Acid and Its Derivatives: A Potential Compound. SLAS Technol 2018; 23:111-127. [PMID: 29361877 DOI: 10.1177/2472630317751840] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Natural triterpenes represent a group of pharmacologically active and structurally diverse organic compounds. The focus on these phytochemicals has been enormous in the past few years, worldwide. Asiatic acid (AA), a naturally occurring pentacyclic triterpenoid, is found mainly in the traditional medicinal herb Centella asiatica. Triterpenoid saponins, which are the primary constituents of C. asiatica, are commonly believed to be responsible for their extensive therapeutic actions. Published research work has described the molecular mechanisms underlying the various biological activities of AA and its derivatives, which vary for each chronic disease. However, a compilation of the various pharmacological properties of AA has not yet been done. Herein, we describe in detail the pharmacological properties of AA and its derivatives that inhibit multiple pathways of intracellular signaling molecules and transcription factors that are involved in the various stages of chronic diseases. Furthermore, the pharmacological activities of AA were compared with two natural compounds: curcumin and resveratrol. This review summarizes the research on AA and its derivatives and helps to provide future directions in the area of drug development.
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Affiliation(s)
- Junwei Lv
- 1 School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Alok Sharma
- 1 School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Ting Zhang
- 1 School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Yuchen Wu
- 1 School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Xianting Ding
- 1 School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
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Wu T, Geng J, Guo W, Gao J, Zhu X. Asiatic acid inhibits lung cancer cell growth in vitro and in vivo by destroying mitochondria. Acta Pharm Sin B 2017; 7:65-72. [PMID: 28119810 PMCID: PMC5237705 DOI: 10.1016/j.apsb.2016.04.003] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 02/18/2016] [Accepted: 03/09/2016] [Indexed: 12/27/2022] Open
Abstract
Asiatic acid (AA), a pentacyclic triterpene found in Centella asiatica, displays significant anti-proliferative effects on cancer cells in vitro although the underlying mechanism of this effect remains unknown. This study investigated the efficacy and mechanism of action of AA against lung cancer both in vivo and in vitro. Using the MTT assay, AA was found to induce apoptosis in a dose- and time-dependent manner, an effect enhanced by pretreatment with an autophagy inhibitor. It also elevated expression of microtubule-associated protein 1 light chain 3 (LC3) and decreased the expression of p62. Furthermore, exposure to AA resulted in collapse of the mitochondrial membrane potential and generation of reactive oxygen species (ROS), suggesting mitochondria are the target of AA. In the mouse lung cancer xenograft model, oral administration of AA significantly inhibited tumor volume and weight accompanied by significant apoptosis of lung cancer cells. In addition, it led to a significant decrease in the expression of proliferating cell nuclear antigen (PCNA). In summary, the results show that AA significantly reduces lung cancer cell growth both in vitro and in vivo and that the associated apoptosis is mediated through mitochondrial damage.
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Gonçalves BMF, Salvador JAR, Marín S, Cascante M. Synthesis and anticancer activity of novel fluorinated asiatic acid derivatives. Eur J Med Chem 2016; 114:101-17. [PMID: 26974379 DOI: 10.1016/j.ejmech.2016.02.057] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 01/26/2016] [Accepted: 02/24/2016] [Indexed: 01/04/2023]
Abstract
A series of novel fluorinated Asiatic Acid (AA) derivatives were successfully synthesized, tested for their antiproliferative activity against HeLa and HT-29 cell lines, and their structure activity relationships were evaluated. The great majority of fluorinated derivatives showed stronger antiproliferative activity than AA in a concentration dependent manner. The most active compounds have a pentameric A-ring containing an α,β-unsaturated carbonyl group. The compounds with better cytotoxic activity were then evaluated against MCF-7, Jurkat, PC-3, A375, MIA PaCa-2 and BJ cell lines. Derivative 14 proved to be the most active compound among all tested derivatives and its mechanism of action was further investigated in HeLa cell line. The results showed that compound 14 induced cell cycle arrest in G0/G1 stage as a consequence of up-regulation of p21(cip1/waf1) and p27(kip1) and down-regulation of cyclin D3 and Cyclin E. Furthermore, compound 14 was found to induce caspase driven-apoptosis with activation of caspases-8 and caspase-3 and the cleavage of PARP. The cleavage of Bid into t-Bid, the up-regulation of Bax and the down-regulation of Bcl-2 were also observed after treatment of HeLa cells with compound 14. Taken together, these mechanistic studies revealed the involvement of extrinsic and intrinsic pathways in the apoptotic process induced by compound 14. Importantly, the antiproliferative activity of this compound on the non-tumor BJ human fibroblast cell line is weaker than in the tested cancer cell lines. The enhanced potency (between 45 and 90-fold more active than AA in a panel of cancer cell lines) and selectivity of this new AA derivative warrant further preclinical evaluation.
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Affiliation(s)
- Bruno M F Gonçalves
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Coimbra, 3000-548, Coimbra, Portugal; Center for Neuroscience and Cell Biology, Coimbra, Portugal
| | - Jorge A R Salvador
- Laboratory of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Coimbra, 3000-548, Coimbra, Portugal; Center for Neuroscience and Cell Biology, Coimbra, Portugal.
| | - Silvia Marín
- Department of Biochemistry and Molecular Biology, Faculty of Biology, Institute of Biomedicine of University of Barcelona, Diagonal 643, 08028 Barcelona, Spain; Institute of Biomedicine of University of Barcelona (IBUB) and Associated Unit to CSIC, Barcelona, Spain
| | - Marta Cascante
- Department of Biochemistry and Molecular Biology, Faculty of Biology, Institute of Biomedicine of University of Barcelona, Diagonal 643, 08028 Barcelona, Spain; Institute of Biomedicine of University of Barcelona (IBUB) and Associated Unit to CSIC, Barcelona, Spain.
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15
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Gao ZH, Dong XR, Gao RR, Sun DA. Unusual microbial lactonization and hydroxylation of asiatic acid by Umbelopsis isabellina. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2015; 17:1059-1064. [PMID: 26194478 DOI: 10.1080/10286020.2015.1054377] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 05/19/2015] [Indexed: 06/04/2023]
Abstract
Asiatic acid (1) is a natural triterpenoid isolated from Centella asiatica. This paper reports the microbial transformation of asiatic acid by an endophytic fungus Umbelopsis isabellina to obtain derivatives potentially useful for further studies. Incubation of asiatic acid with U. isabellina afforded two derivatives 2α,3β,7β, 23-tetrahydroxyurs-12-ene-28-oic acid (2) and 2α,3β,7β,23-tetrahydroxyurs-11-ene-28,13-lactone (3). The structures of these compounds were elucidated by spectral data. Compound 3 has formed an unusual lactone. These two products are new compounds. The possible transformation passway was also discussed.
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Affiliation(s)
- Zhao-Hui Gao
- a Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100193 , China
| | - Xin-Ran Dong
- a Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100193 , China
| | - Ran-Ran Gao
- a Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100193 , China
| | - Di-An Sun
- a Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100193 , China
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Kavitha CV, Jain AK, Agarwal C, Pierce A, Keating A, Huber KM, Serkova NJ, Wempe MF, Agarwal R, Deep G. Asiatic acid induces endoplasmic reticulum stress and apoptotic death in glioblastoma multiforme cells both in vitro and in vivo. Mol Carcinog 2014; 54:1417-29. [PMID: 25252179 DOI: 10.1002/mc.22220] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 07/25/2014] [Accepted: 07/30/2014] [Indexed: 01/11/2023]
Abstract
Glioblastoma multiforme (GBM) is an untreatable malignancy. Existing therapeutic options are insufficient, and adversely affect functional and non-cancerous cells in the brain impairing different functions of the body. Therefore, there is an urgent need for additional preventive and therapeutic non-toxic drugs against GBM. Asiatic acid (AsA; 2,3,23-trihydroxy-12-ursen-28-oic acid, C30 H48 O5 ) is a natural small molecule widely used to treat various neurological disorders, and the present research investigates AsA's efficacy against GBM both in vitro and in vivo. Results showed that AsA treatment (10-100 µM) decreased the human GBM cell (LN18, U87MG, and U118MG) viability, with better efficacy than temozolomide at equimolar doses. Orally administered AsA (30 mg/kg/d) strongly decreased tumor volume in mice when administered immediately after ectopic U87MG xenograft implantation (54% decrease, P ≤ 0.05) or in mice with established xenografts (48% decrease, P ≤ 0.05) without any apparent toxicity. Importantly, AsA feeding (30 mg/kg/twice a day) also decreased the orthotopic U87MG xenografts growth in nude mice as measured by magnetic resonance imaging. Using LC/MS-MS methods, AsA was detected in mice plasma and brain tissue, confirming that AsA crosses blood-brain barrier. Mechanistic studies showed that AsA induces apoptotic death by modulating the protein expression of several apoptosis regulators (caspases, Bcl2 family members, and survivin) in GBM cells. Furthermore, AsA induced ER stress (increased GRP78 and Calpain, and decreased Calnexin and IRE1α expression), enhanced free intra-cellular calcium, and damaged cellular organization in GBM cells. These experimental results demonstrate that AsA is effective against GBM, and advocate further pre-clinical and clinical evaluations of AsA against GBM.
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Affiliation(s)
- Chandagirikoppal V Kavitha
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Denver, Aurora, Colorado
| | - Anil K Jain
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Denver, Aurora, Colorado
| | - Chapla Agarwal
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Denver, Aurora, Colorado
- University of Colorado Cancer Center, University of Colorado Denver, Aurora, Colorado
| | - Angela Pierce
- Department of Pediatrics, University of Colorado School of Medicine, University of Colorado Denver, Aurora, Colorado
| | - Amy Keating
- Department of Pediatrics, University of Colorado School of Medicine, University of Colorado Denver, Aurora, Colorado
| | - Kendra M Huber
- University of Colorado Cancer Center, University of Colorado Denver, Aurora, Colorado
- Department of Anesthesiology, University of Colorado Denver, Aurora, Colorado
| | - Natalie J Serkova
- University of Colorado Cancer Center, University of Colorado Denver, Aurora, Colorado
- Department of Anesthesiology, University of Colorado Denver, Aurora, Colorado
| | - Michael F Wempe
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Denver, Aurora, Colorado
- University of Colorado Cancer Center, University of Colorado Denver, Aurora, Colorado
| | - Rajesh Agarwal
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Denver, Aurora, Colorado
- University of Colorado Cancer Center, University of Colorado Denver, Aurora, Colorado
| | - Gagan Deep
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Denver, Aurora, Colorado
- University of Colorado Cancer Center, University of Colorado Denver, Aurora, Colorado
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17
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Wang ZH. Anti-glycative effects of asiatic acid in human keratinocyte cells. Biomedicine (Taipei) 2014; 4:19. [PMID: 25520932 PMCID: PMC4264986 DOI: 10.7603/s40681-014-0019-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 05/30/2014] [Indexed: 02/02/2023] Open
Abstract
Background: Human skin keratinocyte (HaCaT) cells served to examine effects of asiatic acid (AA) at 1, 2, 4 and 8 μM against advanced glycative endproduct (AGE)-modified bovine serum albumin (BSA) induced glycative stress. Results: AGE-BSA treatment reduced cell viability; and increased reactive oxygen species, nitric oxide, protein carbonyl, interleukin (IL)-1beta and tumor necrosis factor-alpha levels in HaCaT cells. Yet AA pretreatments decreased these oxidative and inflammatory factors, dose-dependently lowering nitric oxide synthase activity and expression. AGE-BSA raised activity and expression of caspase-3 and caspase-8. AA pretreatments at 2-8 μM decreased activity and expression of these two caspases. AGE-BSA declined collagen I expression, but enhanced matrix metalloproteinase (MMP)-1, MMP-8 and MMP-9 protein expression. AA pretreatments at 2-8 μM maintained collagen I expression, and reduced three MMPs expression. AGE-BSA also up-regulated RAGE (receptor of AGE), p-p38 and p-JNK expression. AA pretreatments at 2-8 μM suppressed RAGE expression, and at 1-8 μM down-regulated p-p38 and p-JNK expression. Conclusion: Asiatic acid, via its anti-glycative activity, could protect skin. Thus, this compound could be developed as an external agent and applied for personalized medicine.
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Affiliation(s)
- Zhi-Hong Wang
- Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
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de Rus Jacquet A, Subedi R, Ghimire SK, Rochet JC. Nepalese traditional medicine and symptoms related to Parkinson's disease and other disorders: Patterns of the usage of plant resources along the Himalayan altitudinal range. JOURNAL OF ETHNOPHARMACOLOGY 2014; 153:178-189. [PMID: 24556225 DOI: 10.1016/j.jep.2014.02.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 02/07/2014] [Accepted: 02/08/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Nepal is a hotspot for cultural and biological diversities. The tremendous diversity of ecosystems and climates and the blend of medicinal practices inherited from Ayurvedic and Traditional Tibetan Medicine are well suited to a study aimed at discovering information about medicinal plants to treat Parkinson's disease (PD). In addition, this study across Nepal's altitudinal range is relevant to understanding how cultural and ecological environments influence local traditional medicines. The aim of the study is to document the uses of medicinal plants in three different eco-geographical areas of Nepal (Chitwan-Panchase-Mustang) to treat symptoms related to PD. A second goal is to analyze the impact of culture and environment on the evolution of traditional medicine. MATERIALS AND METHODS The study was conducted in five communities located in three different eco-geographical environments and at altitudes ranging from 300m to 3700m. We interviewed a total of 56 participants (local people, folk, Ayurvedic and Amchi healers) across the three research areas. We conducted open-ended interviews to document the uses of medicinal plants to treat PD-related symptoms. Information provided by the interviewees suggested that the medicinal plants are also used to treat symptoms related to other disorders. We determined the informant consensus factor as well as the importance of specific plant species to (i) identify plants that are the best candidates to be analyzed experimentally for their potential to treat PD and (ii) perform a cross-cultural comparison of the three areas of study. RESULTS This study reports the local uses of 35 different plant species along the Chitwan-Panchase-Mustang altitudinal range. We identify a total of eight plant species that were used in all three research areas, and more specifically one species used to treat PD-like symptoms. We identify a potential dual protective activity of medicinal plants used to treat PD-related symptoms as recent literature suggests that these plants also have anti-cancer properties. In addition, we document that the presence of Ayurvedic healers could influence local practices and that local practices could influence local Ayurvedic practices. CONCLUSIONS This study documents the uses of medicinal plants to treat symptoms related to PD and other disorders across the Chitwan-Panchase-Mustang altitudinal range. PD is a neurodegenerative disease affecting a growing number of people worldwide. No cures are available to slow the death of the neurons, and there is a critical need to work towards innovative therapeutic strategies. We identify medicinal plants based on traditional practices to help develop a cure for PD. The three areas of study were chosen for their ecological and cultural diversities, and two of these are included in conservation programs (Panchase Protected Forest and Annapurna Conservation Area). The documentation of community-natural resource relationships is another step in the preservation of traditional practices and local biodiversity and a reflection of communities' rights in the design of conservation programs.
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Affiliation(s)
- Aurélie de Rus Jacquet
- Purdue University, Heine Pharmacy Building, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA.
| | - Rupa Subedi
- Tribhuvan University, Central Department of Botany, Tribhuvan University (TU), Kirtipur, Post Box 26429, Kathmandu, Nepal.
| | - Suresh K Ghimire
- Tribhuvan University, Central Department of Botany, Tribhuvan University (TU), Kirtipur, Post Box 26429, Kathmandu, Nepal.
| | - Jean-Christophe Rochet
- Purdue University, Heine Pharmacy Building, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA.
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Zhang J, Ai L, Lv T, Jiang X, Liu F. Asiatic acid, a triterpene, inhibits cell proliferation through regulating the expression of focal adhesion kinase in multiple myeloma cells. Oncol Lett 2013; 6:1762-1766. [PMID: 24260073 PMCID: PMC3834345 DOI: 10.3892/ol.2013.1597] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2013] [Accepted: 09/12/2013] [Indexed: 01/11/2023] Open
Abstract
The aim of the present study was to investigate whether asiatic acid (AA), a pentacyclic triterpene derived from Centella asiatica, exerts anti-proliferative effects on multiple myeloma RPMI 8226 cells and to determine the molecular mechanism underlying the anticancer action of AA. The study sought to analyze the potential role of AA on the proliferation of the RPMI 8226 cells using a 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium assay. Cell cycle arrest was detected by flow cytometry, and the expression levels of focal adhesion kinase (FAK) in the myeloma cells induced by AA were analyzed using the western blotting and immunoprecipitation methods. The results indicated that AA significantly inhibited cell proliferation in a time- and dose-dependent manner and led to G2/M phase arrest at concentrations of 35 and 40 μmol/l in the RPMI 8226 cells. The expression levels of FAK and p-FAK were distinctly decreased following AA treatment (at the concentration of 40 μmol/l) for 24 h compared with that of the control groups. Taken together, these results demonstrated that AA was able to regulate cell cycle progression in RPMI 8226 cells, thereby significantly inhibiting cell growth. Furthermore, AA decreased the expression levels of FAK, indicating that the antitumor mechanism of AA may be associated with the inhibition of signal transduction mediated by FAK.
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Affiliation(s)
- Junli Zhang
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
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Mazumder K, Tanaka K, Fukase K. Cytotoxic activity of ursolic acid derivatives obtained by isolation and oxidative derivatization. Molecules 2013; 18:8929-44. [PMID: 23896618 PMCID: PMC6269999 DOI: 10.3390/molecules18088929] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 07/22/2013] [Accepted: 07/24/2013] [Indexed: 01/11/2023] Open
Abstract
Structure-activity relationships of ursane-type pentacyclic triterpenes obtained from natural sources and by chemical derivatization are reviewed. Ursolic acid, corosolic acid, and a new ursane-type pentacyclic triterpene, 7,24-dihydroxyursolic acid, were isolated from the methanolic extract of the leaves of the Bangladeshi medicinal plant, Saurauja roxburghii. Derivatization of ursolic acid by oxidation with dioxoruthenium (VI) tetraphenylporphyrins was investigated. Oxidation selectivity on the terpene structure was modulated by the auxiliaries introduced on the tetraphenylporphyrin. The natural triterpenes and oxidized derivatives were tested for cytotoxicity against the C6 rat glioma and A431 human skin carcinoma cell lines. Although they have the same ursane-type pentacyclic triterpene cores, the position and numbers of hydroxyls on the terpene structures significantly affected the activity and the selectivity towards the tested cell lines.
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Affiliation(s)
- Kishor Mazumder
- Department of Pharmacy, University of Science and Technology Chittagong, Foy’s Lake, Chittagong 4202, Bangladesh; E-Mail:
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Katsunori Tanaka
- RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan; E-Mail:
| | - Koichi Fukase
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
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Kowalczyk P, Junco JJ, Kowalczyk MC, Sosnowska R, Tolstykh O, Walaszek Z, Hanausek M, Slaga TJ. The effects of dissociated glucocorticoids RU24858 and RU24782 on TPA-induced skin tumor promotion biomarkers in SENCAR mice. Mol Carcinog 2013; 53:488-97. [DOI: 10.1002/mc.22002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Accepted: 12/18/2012] [Indexed: 11/12/2022]
Affiliation(s)
- Piotr Kowalczyk
- Graduate School of Biomedical Sciences; University of Texas Health Science Center at San Antonio; San Antonio Texas
| | - Jacob J. Junco
- Graduate School of Biomedical Sciences; University of Texas Health Science Center at San Antonio; San Antonio Texas
| | - Magdalena C. Kowalczyk
- Graduate School of Biomedical Sciences; University of Texas Health Science Center at San Antonio; San Antonio Texas
| | - Renata Sosnowska
- Graduate School of Biomedical Sciences; University of Texas Health Science Center at San Antonio; San Antonio Texas
| | - Olga Tolstykh
- Graduate School of Biomedical Sciences; University of Texas Health Science Center at San Antonio; San Antonio Texas
| | - Zbigniew Walaszek
- Graduate School of Biomedical Sciences; University of Texas Health Science Center at San Antonio; San Antonio Texas
| | - Margaret Hanausek
- Graduate School of Biomedical Sciences; University of Texas Health Science Center at San Antonio; San Antonio Texas
| | - Thomas J. Slaga
- Graduate School of Biomedical Sciences; University of Texas Health Science Center at San Antonio; San Antonio Texas
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Gokara M, Malavath T, Kalangi SK, Reddana P, Subramanyam R. Unraveling the binding mechanism of asiatic acid with human serum albumin and its biological implications. J Biomol Struct Dyn 2013; 32:1290-302. [DOI: 10.1080/07391102.2013.817953] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Guo FF, Feng X, Chu ZY, Li DP, Zhang L, Zhang ZS. Microbial transformation of asiatic acid. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2012; 15:15-21. [PMID: 23227815 DOI: 10.1080/10286020.2012.741124] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Asiatic acid (1), a major pentacyclic triterpene of Centella asiatica, was subjected to transformation by Penicillium lilacinum ACCC 31890, Fusarium equiseti CGMCC 3.3658, and Streptomyces griseus CGMCC 4.18 strains. Incubation of asiatic acid with P. lilacinum ACCC 31890 and F. equiseti CGMCC 3.3658 gave an identical product: 2α,3β,15α,23-tetrahydroxyurs-12-en-28-oic acid (2). Biotransformation of asiatic acid by S. griseus CGMCC 4.18 resulted in three derivatives: 2α,3β,21β,23-tetrahydroxyurs-12-en-28-oic acid (3), 2α,3β,23-trihydroxyurs-12-en-28, 30-dioic acid (4), and 2α,3β,23,30-tetrahydroxyurs-12-en-28-oic acid (5). The structures of those derivatives were deduced from their spectral data. Products (2), (3), and (4) were new compounds. In addition, the in vitro cytotoxicities of those derivatives along with 1 were evaluated with several human cancer cell lines.
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Affiliation(s)
- Fei-Fei Guo
- Tianjin University of Science and Technology, Tianjin 300457, China
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Salvador JAR, Moreira VM, Gonçalves BMF, Leal AS, Jing Y. Ursane-type pentacyclic triterpenoids as useful platforms to discover anticancer drugs. Nat Prod Rep 2012; 29:1463-79. [PMID: 23047641 DOI: 10.1039/c2np20060k] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This review highlights the potential of natural and semisynthetic ursane-type triterpenoids as candidates for the design of multi-target bioactive compounds, with focus on their anticancer effects. A brief illustration of the biosynthesis, sources, and general biological effects of the main classes of naturally occurring pentacyclic triterpenoids (PTs) are provided.
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Affiliation(s)
- Jorge A R Salvador
- Grupo de Química Farmacêutica, Faculdade de Farmácia, Universidade de Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal.
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Nair SN, Menon S, Shailajan S. A liquid chromatography/electrospray ionization tandem mass spectrometric method for quantification of asiatic acid from plasma: application to pharmacokinetic study in rats. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2012; 26:1899-1908. [PMID: 22847688 DOI: 10.1002/rcm.6291] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
RATIONALE Asiatic acid (AA), a pentacyclic triterpene from Centella asiatica (L.) Urban, has shown numerous therapeutic activities. However, none of the published works to date has used high-performance liquid chromatography/tandem mass spectrometry (HPLC/MS/MS) for determination of AA from biological fluids. Therefore, the present paper describes a sensitive HPLC/electrospray ionization (ESI)-MS/MS method for quantification of AA in rat plasma. METHODS Ammonium adduct formation of AA was essential in the development of a sensitive method with the rat plasma samples being pre-treated by a simple solid-phase extraction method. The separation was achieved on a Cosmosil C(18) column using a gradient mobile phase flow. Detection was performed using an Applied Biosystems API Q-Trap 2000 mass spectrometer equipped with an ESI source operated in positive mode with colchicine used as internal standard. RESULTS An eight-point calibration curve over the concentration range of 1.02-407.88 ng/mL for AA from rat plasma provided an optimum linear detector response (with r(2) >0.9983). The mean percentage recovery (n = 3) for the low, middle and high quality control samples was 91.23 ± 1.88%, 90.36 ± 0.55% and 89.71 ± 0.21%, respectively. The intra-day and inter-day precision and accuracy of the quality control samples were within ≤5% and ±7% correspondingly. CONCLUSIONS The developed method was validated as per US FDA guidelines and applicability demonstrated by successful measurement of AA from plasma following oral administration of C. asiatica extracts to Wistar rats. The results suggest that the method could be applied to therapeutic monitoring of AA and pharmacokinetic studies in human volunteers.
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Defillipo PP, Raposo AH, Fedoce AG, Ferreira AS, Polonini HC, Gattaz WF, Raposo NRB. Inhibition of cPLA2 and sPLA2 Activities in Primary Cultures of Rat Cortical Neurons by Centella asiatica Water Extract. Nat Prod Commun 2012. [DOI: 10.1177/1934578x1200700709] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Leaf extract of Centella asiatica has been used as an alternative medicine for memory improvement in the Indian Ayurvedic system of medicine for a long time. Although several studies have revealed its effect in ameliorating the cognitive impairment in rat models of Alzheimer's disease, the molecular mechanism of C. asiatica on neuroprotection still remains unexplained. In this study, we investigated the effects of C. asiatica water extract on activity of subtypes of phospholipase A2 (PLA2) in primary cultures of rat cortical neurons and quantified by HPLC a possible molecule responsible for the activity. The cPLA2 and sPLA2 activities were inhibited in vitro by asiaticoside present in the water extract of C. asiatica. This extract may be a candidate for the treatment of neurodegenerative processes because of its pharmacological activity in the brain and its low toxicity, as attested by its long popular use as a natural product.
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Affiliation(s)
- Patrícia P. Defillipo
- Laboratory of Neuroscience LIM 27, Department and Institute of Psychiatry, Faculty of Medicine, University of São Paulo (USP), São Paulo, Brazil
| | - André H. Raposo
- Núcleo de Pesquisa e Inovação em Ciências da Saúde (NUPICS), Faculty of Pharmacy, Federal University of Juiz de Fora (UFJF), Minas Gerais, Brazil
| | - Alessandra G. Fedoce
- Núcleo de Pesquisa e Inovação em Ciências da Saúde (NUPICS), Faculty of Pharmacy, Federal University of Juiz de Fora (UFJF), Minas Gerais, Brazil
| | - Aline S. Ferreira
- Laboratory of Neuroscience LIM 27, Department and Institute of Psychiatry, Faculty of Medicine, University of São Paulo (USP), São Paulo, Brazil
- Núcleo de Pesquisa e Inovação em Ciências da Saúde (NUPICS), Faculty of Pharmacy, Federal University of Juiz de Fora (UFJF), Minas Gerais, Brazil
| | - Hudson C. Polonini
- Núcleo de Pesquisa e Inovação em Ciências da Saúde (NUPICS), Faculty of Pharmacy, Federal University of Juiz de Fora (UFJF), Minas Gerais, Brazil
| | - Wagner F. Gattaz
- Laboratory of Neuroscience LIM 27, Department and Institute of Psychiatry, Faculty of Medicine, University of São Paulo (USP), São Paulo, Brazil
| | - Nádia R. B. Raposo
- Laboratory of Neuroscience LIM 27, Department and Institute of Psychiatry, Faculty of Medicine, University of São Paulo (USP), São Paulo, Brazil
- Núcleo de Pesquisa e Inovação em Ciências da Saúde (NUPICS), Faculty of Pharmacy, Federal University of Juiz de Fora (UFJF), Minas Gerais, Brazil
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Bhatia A, Singh B, Raza K, Shukla A, Amarji B, Katare OP. Tamoxifen-loaded novel liposomal formulations: evaluation of anticancer activity on DMBA-TPA induced mouse skin carcinogenesis. J Drug Target 2012; 20:544-50. [DOI: 10.3109/1061186x.2012.694887] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Shanmugam MK, Nguyen AH, Kumar AP, Tan BKH, Sethi G. Targeted inhibition of tumor proliferation, survival, and metastasis by pentacyclic triterpenoids: potential role in prevention and therapy of cancer. Cancer Lett 2012; 320:158-70. [PMID: 22406826 DOI: 10.1016/j.canlet.2012.02.037] [Citation(s) in RCA: 150] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Revised: 02/28/2012] [Accepted: 02/29/2012] [Indexed: 01/08/2023]
Abstract
Over the last two decades, extensive research on plant-based medicinal compounds has revealed exciting and important pharmacological properties and activities of triterpenoids. Fruits, vegetables, cereals, pulses, herbs and medicinal plants are all considered to be biological sources of these triterpenoids, which have attracted great attention especially for their potent anti-inflammatory and anti-cancer activities. Published reports in the past have described the molecular mechanism(s) underlying the various biological activities of triterpenoids which range from inhibition of acute and chronic inflammation, inhibition of tumor cell proliferation, induction of apoptosis, suppression of angiogenesis and metastasis. However systematic analysis of various pharmacological properties of these important classes of compounds has not been done. In this review, we describe in detail the pre-clinical chemopreventive and therapeutic properties of selected triterpenoids that inhibit multiple intracellular signaling molecules and transcription factors involved in the initiation, progression and promotion of various cancers. Molecular targets modulated by these triterpenoids comprise, cytokines, chemokines, reactive oxygen intermediates, oncogenes, inflammatory enzymes such as COX-2, 5-LOX and MMPs, anti-apoptotic proteins, transcription factors such as NF-κB, STAT3, AP-1, CREB, and Nrf2 (nuclear factor erythroid 2-related factor) that regulate tumor cell proliferation, transformation, survival, invasion, angiogenesis, metastasis, chemoresistance and radioresistance. Finally, this review also analyzes the potential role of novel synthetic triterpenoids identified recently which mimic natural triterpenoids in physical and chemical properties and are moving rapidly from bench to bedside research.
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Affiliation(s)
- Muthu K Shanmugam
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
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Zheng X, Lu X. SEPARATION AND STRUCTURE DETERMINATION OF CENTELLASAPONIN A AND ITS ISOMER ASIATICOSIDE FROM CENTELLA ASIATICA TOTAL TRITERPENOID SAPONINS. J LIQ CHROMATOGR R T 2011. [DOI: 10.1080/10826076.2011.576300] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Xingfang Zheng
- a Department of Chemical and Biological Engineering , Zhejiang University , Hangzhou, Zhejiang, China
| | - Xiuyang Lu
- a Department of Chemical and Biological Engineering , Zhejiang University , Hangzhou, Zhejiang, China
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Kavitha CV, Agarwal C, Agarwal R, Deep G. Asiatic acid inhibits pro-angiogenic effects of VEGF and human gliomas in endothelial cell culture models. PLoS One 2011; 6:e22745. [PMID: 21826202 PMCID: PMC3149605 DOI: 10.1371/journal.pone.0022745] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Accepted: 07/03/2011] [Indexed: 01/05/2023] Open
Abstract
Malignant gliomas are one of the most devastating and incurable tumors. Sustained excessive angiogenesis by glioma cells is the major reason for their uncontrolled growth and resistance toward conventional therapies resulting in high mortality. Therefore, targeting angiogenesis should be a logical strategy to prevent or control glioma cell growth. Earlier studies have shown that Asiatic Acid (AsA), a pentacyclic triterpenoid, is effective against glioma and other cancer cells; however, its efficacy against angiogenesis remains unknown. In the present study, we examined the anti-angiogenic efficacy of AsA using human umbilical vein endothelial cells (HUVEC) and human brain microvascular endothelial cells (HBMEC). Our results showed that AsA (5–20 µM) inhibits HUVEC growth and induces apoptotic cell death by activating caspases (3 and 9) and modulating the expression of apoptosis regulators Bad, survivin and pAkt-ser473. Further, AsA showed a dose-dependent inhibition of HUVEC migration, invasion and capillary tube formation, and disintegrated preformed capillary network. AsA also inhibited the VEGF-stimulated growth and capillary tube formation by HUVEC and HBMEC. Next, we analyzed the angiogenic potential of conditioned media collected from human glioma LN18 and U87-MG cells treated with either DMSO (control conditioned media, CCM) or AsA 20 µM (AsA20 conditioned media, AsA20CM). CCM from glioma cells significantly enhanced the capillary tube formation in both HUVEC and HBMEC, while capillary tube formation in both endothelial cell lines was greatly compromised in the presence of AsA20CM. Consistent with these results, VEGF expression was lesser in AsA20CM compared to CCM, and indeed AsA strongly inhibited VEGF level (both cellular and secreted) in glioma cells. AsA also showed dose-dependent anti-angiogenic efficacy in Matrigel plug assay, and inhibited the glioma cells potential to attract HUVEC/HBMEC. Overall, the present study clearly showed the strong anti-angiogenic potential of AsA and suggests its usefulness against malignant gliomas.
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Affiliation(s)
- Chandagirikoppal V. Kavitha
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Colorado Denver, Denver, Colorado, United States of America
| | - Chapla Agarwal
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Colorado Denver, Denver, Colorado, United States of America
- University of Colorado Cancer Center, Aurora, Colorado, United States of America
| | - Rajesh Agarwal
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Colorado Denver, Denver, Colorado, United States of America
- University of Colorado Cancer Center, Aurora, Colorado, United States of America
| | - Gagan Deep
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Colorado Denver, Denver, Colorado, United States of America
- University of Colorado Cancer Center, Aurora, Colorado, United States of America
- * E-mail:
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Targeting inflammatory pathways by triterpenoids for prevention and treatment of cancer. Toxins (Basel) 2010; 2:2428-66. [PMID: 22069560 PMCID: PMC3153165 DOI: 10.3390/toxins2102428] [Citation(s) in RCA: 211] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2010] [Revised: 09/23/2010] [Accepted: 10/15/2010] [Indexed: 02/07/2023] Open
Abstract
Traditional medicine and diet has served mankind through the ages for prevention and treatment of most chronic diseases. Mounting evidence suggests that chronic inflammation mediates most chronic diseases, including cancer. More than other transcription factors, nuclear factor-kappaB (NF-κB) and STAT3 have emerged as major regulators of inflammation, cellular transformation, and tumor cell survival, proliferation, invasion, angiogenesis, and metastasis. Thus, agents that can inhibit NF-κB and STAT3 activation pathways have the potential to both prevent and treat cancer. In this review, we examine the potential of one group of compounds called triterpenes, derived from traditional medicine and diet for their ability to suppress inflammatory pathways linked to tumorigenesis. These triterpenes include avicins, betulinic acid, boswellic acid, celastrol, diosgenin, madecassic acid, maslinic acid, momordin, saikosaponins, platycodon, pristimerin, ursolic acid, and withanolide. This review thus supports the famous adage of Hippocrates, “Let food be thy medicine and medicine be thy food”.
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Zhang L, Chen J, Gong Y, Liu J, Zhang L, Hua W, Sun H. Synthesis and biological evaluation of asiatic acid derivatives as inhibitors of glycogen phosphorylases. Chem Biodivers 2009; 6:864-74. [PMID: 19551727 DOI: 10.1002/cbdv.200800092] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Twenty-four asiatic acid derivatives have been synthesized and biologically evaluated as inhibitors of glycogen phosphorylase (GP). Within this series of compounds, asiatic acid benzyl ester (23; IC(50)=3.8 microM) exhibited more potent activity than its parent compound 1 (IC(50)=17 microM). SAR Analysis showed that asiatic acid (1) possessing a 2alpha-OH function exhibited more potent GP inhibitory activity than eriantic acid B (27) which possesses a 2beta-OH function. Further lead optimization based on 1 is needed to find more effective asiatic acid derivatives as antidiabetic agents with protective effects against ischemic diabetic complications.
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Affiliation(s)
- Liying Zhang
- Center for Drug Discovery, School of Pharmacy, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, P. R. China
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Antioxidant and cytotoxic activities of Centella asiatica (L) Urb. Int J Mol Sci 2009; 10:3713-3721. [PMID: 19865514 PMCID: PMC2769141 DOI: 10.3390/ijms10093713] [Citation(s) in RCA: 117] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2009] [Accepted: 08/26/2009] [Indexed: 01/25/2023] Open
Abstract
In the present study, the phenolic (Folin-Dennis) and flavonoid (colorimetric assay) constituents, antioxidant [2,2-diphenyl-2-picrylhydrazyl hydrate (DPPH) assay] and cytotoxic activities of an aqueous extract (AE) of Centella asiatica leaves were investigated. The aqueous extract (50 g/L) was obtained by infusion followed by cold maceration for 24 h. The levels of phenolic and flavonoid compounds were 2.86 g/100 g and 0.361 g/100 g, respectively. The AE showed elevated DPPH scavenging activity, with an IC50 value of 31.25 μg/mL. The AE had a promising activity against mouse melanoma (B16F1), human breast cancer (MDA MB-231) and rat glioma (C6) cell lines, with IC50 values of 698.0, 648.0 and 1000.0 μg/mL, respectively. A positive correlation was established between the level of flavonoids, antioxidant and antitumor activities.
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Kuo RY, Qian K, Morris-Natschke SL, Lee KH. Plant-derived triterpenoids and analogues as antitumor and anti-HIV agents. Nat Prod Rep 2009; 26:1321-44. [PMID: 19779642 DOI: 10.1039/b810774m] [Citation(s) in RCA: 114] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Reen-Yen Kuo
- UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7568, USA
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Kim WJ, Kim J, Veriansyah B, Kim JD, Lee YW, Oh SG, Tjandrawinata RR. Extraction of bioactive components from Centella asiatica using subcritical water. J Supercrit Fluids 2009. [DOI: 10.1016/j.supflu.2008.11.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Barbosa NR, Pittella F, Gattaz WF. Centella asiatica water extract inhibits iPLA2 and cPLA2 activities in rat cerebellum. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2008; 15:896-900. [PMID: 18455381 DOI: 10.1016/j.phymed.2008.02.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2007] [Revised: 01/17/2008] [Accepted: 02/27/2008] [Indexed: 05/26/2023]
Abstract
Centella asiatica (L.) Urb an is distributed widely in South America and Asia and is known as a therapeutic agent in folk medicine, capable of improving memory and treating several neurological disorders. Asiaticoside is one of the compounds found in C. asiatica leaves that is suggested to be responsible for its pharmacological potential. Phospholipase A(2) (PLA(2)) is a group of enzymes that has abnormal activity in the central nervous system in some neuropsychiatric diseases. In this work, the asiaticoside present in C. asiatica water extract was quantified by HPLC analysis. We also evaluated the activity of subtypes of PLA(2) in cerebellar samples from rats after C. asiatica water extract treatment using a radioenzymatic assay. Asiaticoside was the major compound (84%) found in Centella water extract. We found a dose-dependent inhibitory effect of C. asiatica water extract on the activity of Ca(2+)-independent PLA(2) (iPLA(2)) and cytosolic PLA(2) (cPLA(2)). The inhibition of these enzymes in the brain suggests that C. asiatica may be useful to treat conditions associated with increased PLA(2) activity in the brain, such as epilepsy, stroke, multiple sclerosis and other neuropsychiatric disorders.
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Affiliation(s)
- N R Barbosa
- Núcleo de Identificação e Quantificação Analítica (NIQUA), Faculty of Pharmacy and Biochemistry, Federal Universtiy of Juiz de Fora (UFJF), Minas Gerais, Brazil
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