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Shaheen S, Khalid S, Aaliya K, Gul A, Hafeez A, Armaghan M, Almarhoon ZM, Calina D, Khan K, Sharifi-Rad J. Insights into Nimbolide molecular crosstalk and its anticancer properties. Med Oncol 2024; 41:158. [PMID: 38761317 DOI: 10.1007/s12032-024-02379-5] [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: 03/12/2024] [Accepted: 04/04/2024] [Indexed: 05/20/2024]
Abstract
Nimbolide, one of the main ingredients constituent of Azadirachta indica (neem) leaf extract, has garnered attention for its potential as an anticancer agent. Its efficacy against various cancers and chemopreventive action has been demonstrated through numerous in vivo and in vitro studies. This updated review aims to comprehensively explore the chemopreventive and anticancer properties of nimbolide, emphasizing its molecular mechanisms of action and potential therapeutic applications in oncology. The review synthesizes evidence from various studies that examine nimbolide's roles in apoptosis induction, anti-proliferation, cell death, metastasis inhibition, angiogenesis suppression, and modulation of carcinogen-metabolizing enzymes. Nimbolide exhibits multifaceted anticancer activities, including the modulation of multiple cell signaling pathways related to inflammation, invasion, survival, growth, metastasis, and angiogenesis. However, its pharmacological development is still in the early stages, mainly due to limited pharmacokinetic and comprehensive long-term toxicological studies. Nimbolide shows promising anticancer and chemopreventive properties, but there is need for systematic preclinical pharmacokinetic and toxicological research. Such studies are essential for establishing safe dosage ranges for first-in-human clinical trials and further advancing nimbolide's development as a therapeutic agent against various cancers. The review highlights the potential of nimbolide in cancer treatment and underscores the importance of rigorous preclinical evaluation to realize its full therapeutic potential.
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Affiliation(s)
- Shabnum Shaheen
- Department of Botany, Lahore College for Women University, Jail Road, Lahore, Pakistan
| | - Sana Khalid
- Department of Botany, Lahore College for Women University, Jail Road, Lahore, Pakistan
- Centre of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Khadija Aaliya
- Centre of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Ambreen Gul
- Centre of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Amna Hafeez
- Department of Healthcare Biotechnology, Atta-Ur-Rahman School of Applied Biosciences, National University of Sciences and Technology, Sector H-12, Islamabad, 44000, Pakistan
| | - Muhammad Armaghan
- Department of Healthcare Biotechnology, Atta-Ur-Rahman School of Applied Biosciences, National University of Sciences and Technology, Sector H-12, Islamabad, 44000, Pakistan
| | - Zainab M Almarhoon
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, 11451, Riyadh, Saudi Arabia
| | - Daniela Calina
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, 200349, Craiova, Romania.
| | - Khushbukhat Khan
- Cancer Clinical Research Unit, Trials360, Lahore, 54000, Pakistan.
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Rajendran P, Renu K, Abdallah BM, Ali EM, Veeraraghavan VP, Sivalingam K, Rustagi Y, Abdelsalam SA, Ibrahim RIH, Al-Ramadan SY. Nimbolide: promising agent for prevention and treatment of chronic diseases (recent update). Food Nutr Res 2024; 68:9650. [PMID: 38571915 PMCID: PMC10989234 DOI: 10.29219/fnr.v68.9650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 10/09/2023] [Accepted: 10/16/2023] [Indexed: 04/05/2024] Open
Abstract
Background Nimbolide, a bioactive compound derived from the neem tree, has garnered attention as a potential breakthrough in the prevention and treatment of chronic diseases. Recent updates in research highlight its multifaceted pharmacological properties, demonstrating anti-inflammatory, antioxidant, and anticancer effects. With a rich history in traditional medicine, nimbolide efficacy in addressing the molecular complexities of conditions such as cardiovascular diseases, diabetes, and cancer positions it as a promising candidate for further exploration. As studies progress, the recent update underscores the growing optimism surrounding nimbolide as a valuable tool in the ongoing pursuit of innovative therapeutic strategies for chronic diseases. Methods The comprehensive search of the literature was done until September 2020 on the MEDLINE, Embase, Scopus and Web of Knowledge databases. Results Most studies have shown the Nimbolide is one of the most potent limonoids derived from the flowers and leaves of neem (Azadirachta indica), which is widely used to treat a variety of human diseases. In chronic diseases, nimbolide reported to modulate the key signaling pathways, such as Mitogen-activated protein kinases (MAPKs), Wingless-related integration site-β (Wnt-β)/catenin, NF-κB, PI3K/AKT, and signaling molecules, such as transforming growth factor (TGF-β), Matrix metalloproteinases (MMPs), Vascular Endothelial Growth Factor (VEGF), inflammatory cytokines, and epithelial-mesenchymal transition (EMT) proteins. Nimbolide has anti-inflammatory, anti-microbial, and anti-cancer properties, which make it an intriguing compound for research. Nimbolide demonstrated therapeutic potential for osteoarthritis, rheumatoid arthritis, cardiovascular, inflammation and cancer. Conclusion The current review mainly focused on understanding the molecular mechanisms underlying the therapecutic effects of nimbolide in chronic diseases.
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Affiliation(s)
- Peramaiyan Rajendran
- Department of Biological Sciences, College of Science, King Faisal University, Al Ahsa, Saudi Arabia
- Centre of Molecular Medicine and Diagnostics (COMManD), Department of Biochemistry, Saveetha Dental College & Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India
| | - Kaviyarasi Renu
- Centre of Molecular Medicine and Diagnostics (COMManD), Department of Biochemistry, Saveetha Dental College & Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India
| | - Basem M. Abdallah
- Department of Biological Sciences, College of Science, King Faisal University, Al Ahsa, Saudi Arabia
| | - Enas M. Ali
- Department of Biological Sciences, College of Science, King Faisal University, Al Ahsa, Saudi Arabia
- Department of Botany and Microbiology, Faculty of Science, Cairo University, Cairo, Egypt
| | - Vishnu Priya Veeraraghavan
- Centre of Molecular Medicine and Diagnostics (COMManD), Department of Biochemistry, Saveetha Dental College & Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India
| | - Kalaiselvi Sivalingam
- Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA, USA
| | - Yashika Rustagi
- Centre for Cancer Genomics, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Salaheldin Abdelraouf Abdelsalam
- Department of Biological Sciences, College of Science, King Faisal University, Al Ahsa, Saudi Arabia
- Department of Zoology, Faculty of Science, Assiut University, Assiut, Egypt
| | - Rashid Ismael Hag Ibrahim
- Department of Biological Sciences, College of Science, King Faisal University, Al Ahsa, Saudi Arabia
- Department of Botany, Faculty of Science, University of Khartoum, Sudan
| | - Saeed Yaseen Al-Ramadan
- Department of Anatomy, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
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Nagini S, Palrasu M, Bishayee A. Limonoids from neem (Azadirachta indica A. Juss.) are potential anticancer drug candidates. Med Res Rev 2024; 44:457-496. [PMID: 37589457 DOI: 10.1002/med.21988] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 07/06/2023] [Accepted: 08/06/2023] [Indexed: 08/18/2023]
Abstract
Neem (Azadirachta indica A. Juss.), a versatile evergreen tree recognized for its ethnopharmacological value, is a rich source of limonoids of the triterpenoid class, endowed with potent medicinal properties. Extracts of neem have been documented to display anticancer effects in diverse malignant cell lines as well as in preclinical animal models that has largely been attributed to the constituent limonoids. Of late, neem limonoids have become the cynosure of research attention as potential candidate agents for cancer prevention and therapy. Among the various limonoids found in neem, azadirachtin, epoxyazadiradione, gedunin, and nimbolide, have been extensively investigated for anticancer activity. Azadirachtin, a potent biodegradable pesticide, exhibits profound antiproliferative effects by preventing mitotic spindle formation and cell division. The antiproliferative activity of gedunin has been demonstrated to be mediated primarily via inhibition of heat shock protein90 and its client proteins. Epoxyazadiradione inhibits pro-inflammatory and kinase-driven signaling pathways to block tumorigenesis. Nimbolide, the most potent cytotoxic neem limonoid, inhibits the growth of cancer cells by regulating the phosphorylation of keystone kinases that drive oncogenic signaling besides modulating the epigenome. There is overwhelming evidence to indicate that neem limonoids exert anticancer effects by preventing the acquisition of hallmark traits of cancer, such as cell proliferation, apoptosis evasion, inflammation, invasion, angiogenesis, and drug resistance. Neem limonoids are value additions to the armamentarium of natural compounds that target aberrant oncogenic signaling to inhibit cancer development and progression.
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Affiliation(s)
- Siddavaram Nagini
- Department of Biochemistry & Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamil Nadu, India
| | - Manikandan Palrasu
- Department of Pathology, Microbiology, and Immunology, University of South Carolina School of Medicine, Columbia, South Carolina, USA
| | - Anupam Bishayee
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, Florida, USA
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He Z, Zhang J, Ma J, Zhao L, Jin X, Li H. R-spondin family biology and emerging linkages to cancer. Ann Med 2023; 55:428-446. [PMID: 36645115 PMCID: PMC9848353 DOI: 10.1080/07853890.2023.2166981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
The R-spondin protein family comprises four members (RSPO1-4), which are agonists of the canonical Wnt/β-catenin pathway. Emerging evidence revealed that RSPOs should not only be viewed as agonists of the Wnt/β-catenin pathway but also as regulators for tumor development and progression. Aberrant expression of RSPOs is related to tumorigenesis and tumor development in multiple cancers and their expression of RSPOs has also been correlated with anticancer immune cell signatures. More importantly, the role of RSPOs as potential target therapies and their implication in cancer progressions has been studied in the preclinical and clinical settings. These findings highlight the possible therapeutic value of RSPOs in cancer medicine. However, the expression pattern, effects, and mechanisms of RSPO proteins in cancer remain elusive. Investigating the many roles of RSPOs is likely to expand and improve our understanding of the oncogenic mechanisms mediated by RSPOs. Here, we reviewed the recent advances in the functions and underlying molecular mechanisms of RSPOs in tumor development, cancer microenvironment regulation, and immunity, and discussed the therapeutic potential of targeting RSPOs for cancer treatment. In addition, we also explored the biological feature and clinical relevance of RSPOs in cancer mutagenesis, transcriptional regulation, and immune correlation by bioinformatics analysis.KEY MESSAGESAberrant expressions of RSPOs are detected in various human malignancies and are always correlated with oncogenesis.Although extensive studies of RSPOs have been conducted, their precise molecular mechanism remains poorly understood.Bioinformatic analysis revealed that RSPOs may play a part in the development of the immune composition of the tumor microenvironment.
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Affiliation(s)
- Zhimin He
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, China
| | - Jialin Zhang
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, China
| | - Jianzhong Ma
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, China
| | - Lei Zhao
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, China
| | - Xiaodong Jin
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Hongbin Li
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, China
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Katola FO, Olajide OA. Nimbolide Targets Multiple Signalling Pathways to Reduce Neuroinflammation in BV-2 Microglia. Mol Neurobiol 2023; 60:5450-5467. [PMID: 37314658 PMCID: PMC10415506 DOI: 10.1007/s12035-023-03410-y] [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: 10/27/2022] [Accepted: 05/29/2023] [Indexed: 06/15/2023]
Abstract
Nimbolide, a limonoid compound found in the neem plant, was investigated for effects on neuroinflammation in BV-2 microglia activated with lipopolysaccharide (LPS). Cultured BV-2 cells were treated with nimbolide (125, 250 and 500 nM) followed by stimulation with LPS (100 ng/ml). Results showed that nimbolide caused a significant reduction in the levels of TNFα, IL-6, IFNγ, NO/iNOS and PGE2/COX-2 in LPS-activated BV-2 cells. Further experiments revealed that LPS-induced increased expression of phospho-p65 and phospho-IκBα proteins were reduced in the presence of nimbolide. Also, LPS-induced NF-κB acetylation, increased binding to consensus sites and transactivation, as well as phosphorylation of p38 and JNK MAPKs were reduced by nimbolide. Reduction of cellular ROS generation by nimbolide was accompanied by a reduction in gp91phox protein levels, while antioxidant effects were also observed through elevation in protein levels of HO-1 and NQO-1. It was observed that treatment of BV-2 microglia with nimbolide resulted in reduced levels of cytoplasmic Nrf2, which was accompanied by increased levels in the nucleus. Furthermore, treatment with this compound resulted in increased binding of Nrf2 to antioxidant responsive element (ARE) consensus sites accompanied by enhanced ARE luciferase activity. Knockdown experiments revealed a loss of anti-inflammatory activity by nimbolide in cells transfected with Nrf2 siRNA. Treatment with nimbolide resulted in nuclear accumulation of SIRT-1, while siRNA knockdown of SIRT-1 resulted in the reversal of anti-inflammatory activity of nimbolide. It is proposed that nimbolide reduces neuroinflammation in BV-2 microglia through mechanisms resulting in dual inhibition of NF-κB and MAPK pathways. It is also proposed that activation of Nrf2 antioxidant mechanisms may be contributing to its anti-inflammatory activity.
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Affiliation(s)
- Folashade O Katola
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK
- University of Texas Southwestern Medical Center, Dallas, TX, 75390-9072, USA
| | - Olumayokun A Olajide
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK.
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Basu A, Namporn T, Ruenraroengsak P. Critical Review in Designing Plant-Based Anticancer Nanoparticles against Hepatocellular Carcinoma. Pharmaceutics 2023; 15:1611. [PMID: 37376061 DOI: 10.3390/pharmaceutics15061611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/19/2023] [Accepted: 05/22/2023] [Indexed: 06/29/2023] Open
Abstract
Hepatocellular carcinoma (HCC), accounting for 85% of liver cancer cases, continues to be the third leading cause of cancer-related deaths worldwide. Although various forms of chemotherapy and immunotherapy have been investigated in clinics, patients continue to suffer from high toxicity and undesirable side effects. Medicinal plants contain novel critical bioactives that can target multimodal oncogenic pathways; however, their clinical translation is often challenged due to poor aqueous solubility, low cellular uptake, and poor bioavailability. Nanoparticle-based drug delivery presents great opportunities in HCC therapy by increasing selectivity and transferring sufficient doses of bioactives to tumor areas with minimal damage to adjacent healthy cells. In fact, many phytochemicals encapsulated in FDA-approved nanocarriers have demonstrated the ability to modulate the tumor microenvironment. In this review, information about the mechanisms of promising plant bioactives against HCC is discussed and compared. Their benefits and risks as future nanotherapeutics are underscored. Nanocarriers that have been employed to encapsulate both pure bioactives and crude extracts for application in various HCC models are examined and compared. Finally, the current limitations in nanocarrier design, challenges related to the HCC microenvironment, and future opportunities are also discussed for the clinical translation of plant-based nanomedicines from bench to bedside.
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Affiliation(s)
- Aalok Basu
- Department of Pharmacy, Faculty of Pharmacy, Mahidol University, 447 Sri-Ayutthaya Rd., Rajathevi, Bangkok 10400, Thailand
| | - Thanaphon Namporn
- Department of Pharmacy, Faculty of Pharmacy, Mahidol University, 447 Sri-Ayutthaya Rd., Rajathevi, Bangkok 10400, Thailand
| | - Pakatip Ruenraroengsak
- Department of Pharmacy, Faculty of Pharmacy, Mahidol University, 447 Sri-Ayutthaya Rd., Rajathevi, Bangkok 10400, Thailand
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Zhang J, Jung YY, Mohan CD, Deivasigamani A, Chinnathambi A, Alharbi SA, Rangappa KS, Hui KM, Sethi G, Ahn KS. Nimbolide enhances the antitumor effect of docetaxel via abrogation of the NF-κB signaling pathway in prostate cancer preclinical models. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2022; 1869:119344. [PMID: 36007677 DOI: 10.1016/j.bbamcr.2022.119344] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 08/04/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
Prostate cancer is the second most frequent type of cancer that affects men. Docetaxel (DTX) administration is the front-line therapy for patients with advanced prostate cancer and unfortunately, half of these patients develop resistance to DTX which could be due to its ability to activate the NF-κB pathway. The combinational effect of DTX and nimbolide on proliferation, apoptosis, activation of NF-κB, DNA binding ability of NF-κB, and expression of NF-κB-targeted gene products was investigated. The antitumor and antimetastatic effect of DTX or NL alone or in combination was also examined. The co-administration of NL and DTX resulted in a significant loss of cell viability with enhanced apoptosis in DTX-sensitive/resistant prostate cancer cells. NL abrogated DTX-triggered NF-κB activation and expression of its downstream antiapoptotic factors (survivin, Bcl-2, and XIAP). The combination of NL and DTX significantly reduced the DNA binding ability of NF-κB in both cell types. NL significantly enhanced the antitumor effect of DTX and reduced metastases in orthotopic models of prostate cancer. NL abolishes DTX-induced-NF-κB activation to counteract cell proliferation, tumor growth, and metastasis in the prostate cancer models.
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Affiliation(s)
- Jingwen Zhang
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 117600, Singapore
| | - Young Yun Jung
- Department of Science in Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | | | - Amudha Deivasigamani
- Division of Cellular and Molecular Research, Humphrey Oei Institute of Cancer Research, National Cancer Centre, 169610, Singapore
| | - Arunachalam Chinnathambi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sulaiman Ali Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | | | - Kam Man Hui
- Department of Studies in Molecular Biology, University of Mysore, Manasagangotri, Mysore 570006, India.
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 117600, Singapore.
| | - Kwang Seok Ahn
- Department of Science in Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea.
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Ouerfelli M, Metón I, Codina-Torrella I, Almajano MP. Antibacterial and Antiproliferative Activities of Azadirachta indica Leaf Extract and Its Effect on Oil-in-Water Food Emulsion Stability. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227772. [PMID: 36431873 PMCID: PMC9698279 DOI: 10.3390/molecules27227772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 11/04/2022] [Accepted: 11/08/2022] [Indexed: 11/16/2022]
Abstract
The present study aims to identify and quantify the phenolic compounds of Azadirachta indica leaf extract using HPLC-MS and to evaluate the antioxidant, antibacterial (against different Gram-positive and negative bacteria) and in vitro anti-proliferative activities of this extract (against breast, human liver and cervix adenocarcinoma-derived cells). The application of this extract as a natural antioxidant for food preservation was also tested on oil-in-water food emulsions for the first time in the present work in order to determine the use of Azadirachta indica leaves as a natural additive to preserve the food against lipid oxidation and rancidity. The results obtained revealed that 50%-aqueous ethanol leaf extract showed the best extraction yield (25.14%), which was characterized by a high content in phenolic compounds and strong antioxidant activity. Moreover, this leaf extract inhibited the growth of the bacterial strains tested (Staphylococcus aureus, Escherichia coli, Salmonella paratyphi and Micrococcus luteus) and showed better anti-proliferative activity against breast and cervix adenocarcinoma-derived cells than human liver cancer cells after 48 h of treatment. Additionally, Azadirachta indica leaf extract showed almost similar effects as gallic acid solutions (0.25% and 0.5%) in preserving the oxidation of oil-in-water food emulsions and prevented the formation of secondary oxidation products (malondialdehyde) as well. The results obtained suggested that extracts of Azadirachta indica leaves are a potential source of antioxidant and antibacterial compounds and pointed to the potential of these natural extracts as therapeutic agents.
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Affiliation(s)
- Manel Ouerfelli
- Chemical Engineering Department, Escola Tècnica Superior d’Enginyeria Industrial de Barcelona (ETSEIB), Universitat Politècnica de Catalunya, Av. Diagonal 647, 08028 Barcelona, Spain
- Biology Department, Faculty of Sciences of Tunis, University of Tunis El Manar, Tunis 2092, Tunisia
| | - Isidoro Metón
- Biochemistry and Physiology Departament, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona, Joan XXIII 27-31, 08028 Barcelona, Spain
| | - Idoia Codina-Torrella
- Agri-Food Engineering and Biotechnology Department, Escola d’Enginyeria Agroalimentària i de Biosistemes de Bacelona (EEABB), Universitat Politècnica de Catalunya, Esteve Terrades, 8, 08860 Castelldefels, Spain
| | - María Pilar Almajano
- Chemical Engineering Department, Escola Tècnica Superior d’Enginyeria Industrial de Barcelona (ETSEIB), Universitat Politècnica de Catalunya, Av. Diagonal 647, 08028 Barcelona, Spain
- Correspondence: ; Tel.: +34-934-016-686
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Luo J, Sun Y, Li Q, Kong L. Research progress of meliaceous limonoids from 2011 to 2021. Nat Prod Rep 2022; 39:1325-1365. [PMID: 35608367 DOI: 10.1039/d2np00015f] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Covering: July 2010 to December 2021Limonoids, a kind of natural tetranortriterpenoids with diverse skeletons and valuable insecticidal and medicinal bioactivities, are the characteristic metabolites of most plants of the Meliaceae family. The chemistry and bioactivities of meliaceous limonoids are a continuing hot area of natural products research; to date, about 2700 meliaceous limonoids have been identified. In particular, more than 1600, including thirty kinds of novel rearranged skeletons, have been isolated and identified in the past decade due to their wide distribution and abundant content in Meliaceae plants and active biosynthetic pathways. In addition to the discovery of new structures, many positive medicinal bioactivities of meliaceous limonoids have been investigated, and extensive achievements regarding the chemical and biological synthesis have been made. This review summarizes the recent research progress in the discovery of new structures, medicinal and agricultural bioactivities, and chem/biosynthesis of limonoids from the plants of the Meliaceae family during the past decade, with an emphasis on the discovery of limonoids with novel skeletons, the medicinal bioactivities and mechanisms, and chemical synthesis. The structures, origins, and bioactivities of other new limonoids were provided as ESI. Studies published from July 2010 to December 2021 are reviewed, and 482 references are cited.
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Affiliation(s)
- Jun Luo
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China.
| | - Yunpeng Sun
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China.
| | - Qiurong Li
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China.
| | - Lingyi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China.
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10
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Ram AK, Vairappan B, Srinivas BH. Nimbolide attenuates gut dysbiosis and prevents bacterial translocation by improving intestinal barrier integrity and ameliorating inflammation in hepatocellular carcinoma. Phytother Res 2022; 36:2143-2160. [PMID: 35229912 DOI: 10.1002/ptr.7434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 02/04/2022] [Accepted: 02/16/2022] [Indexed: 09/25/2023]
Abstract
Gut microbiota imbalance plays a key pathological role in hepatocellular carcinoma (HCC) progression; however, the mechanism is poorly understood. We previously showed nimbolide impede tumor development by improving hepatic tight junction (TJ) proteins expression and attenuating inflammation in HCC mice. Here, we aimed to study the role of nimbolide in regulating gut microbiota imbalance and bacterial translocation (BT) through modulating intestinal TJ proteins in an experimental hepatocarcinogenesis. Nimbolide (6 mg/kg) was administered orally for 4 weeks following induction of HCC in mice at the 28th week. Nimbolide treatment attenuated the gut microbiota imbalance by decreasing 16 s rRNA levels of Escherichia coli, Enterococcus, Bacteroides and increasing Bifidobacterium, and Lactobacillus in the intestinal tissue, which was otherwise altered in HCC mice. Furthermore, nimbolide improved intestinal barrier integrity in HCC mice by upregulating TJ proteins such as occludin and ZO-1 expression and subsequently prevented hepatic BT and decreased BT markers such as LBP, sCD14, and procalcitonin in the plasma of HCC mice. Moreover, nimbolide ameliorated intestinal and hepatic inflammation by downregulating TLR4, MyD88, and NF-κB protein expression in HCC mice. Thus, nimbolide represents a novel therapeutic drug for HCC treatment by targeting the gut-liver axis, which plays an imperative role in HCC pathogenesis.
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Affiliation(s)
- Amit Kumar Ram
- Liver Diseases Research Lab, Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, India
| | - Balasubramaniyan Vairappan
- Liver Diseases Research Lab, Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, India
| | - Bheemanathi Hanuman Srinivas
- Department of Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, India
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Nivetha R, Arvindhvv S, Baba AB, Gade DR, Gopal G, K C, Kallamadi KPR, Reddy GB, Nagini S. Nimbolide, a Neem Limonoid, Inhibits Angiogenesis in Breast Cancer by Abrogating Aldose Reductase Mediated IGF-1/PI3K/Akt Signaling. Anticancer Agents Med Chem 2022; 22:2619-2636. [DOI: 10.2174/1871520622666220204115151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 12/13/2021] [Accepted: 12/17/2021] [Indexed: 11/22/2022]
Abstract
Background & Objectives:
There is growing evidence to implicate the insulin/IGF-1R/PI3K/Akt signaling cascade in breast cancer development and the central role of aldose reductase (AR) in mediating the crosstalk between this pathway and angiogenesis. The current study was designed to investigate whether nimbolide, a neem limonoid, targets this oncogenic signaling network to prevent angiogenesis in breast cancer.
Methods:
Breast cancer cells (MCF-7, MDA-MB-231), EAhy926 endothelial cells, MDA-MB-231 xenografted nude mice, and tumour tissues from breast cancer patients were used for the study. Expression of AR and key players in IGF-1/PI3K/Akt signaling and angiogenesis was evaluated by qRT-PCR, immunoblotting, and immunohistochemistry. Molecular docking and simulation, overexpression, and knockdown experiments were performed to determine whether nimbolide targets AR and IGF-1R
Results:
Nimbolide inhibited AR with consequent blockade of the IGF-1/PI3K/Akt and HIF-1/VEGF signaling circuit by influencing the phosphorylation and intracellular localisation of key signaling molecules. Downregulation of DNMT-1, HDAC-6, miR-21, HOTAIR, and H19 with upregulation of miR-148a/miR-152 indicated that nimbolide regulates AR and IGF-1/PI3K/Akt signaling via epigenetic modifications. Coadministration of nimbolide with metformin and the chemotherapeutic drugs tamoxifen/cisplatin displayed higher efficacy than single agents in inhibiting IGF-1/PI3K/Akt/AR signaling. Grade-wise increases in IGF-1R and AR expression in breast cancer tissues underscore their value as biomarkers of progression.
Conclusions:
This study provides evidence for the anticancer effects of nimbolide in cellular and mouse models of breast cancer besides providing leads for new drug combinations. It has also opened up avenues for investigating potential molecules such as AR for therapeutic targeting of cancer.
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Affiliation(s)
- Ramesh Nivetha
- Department of Biochemistry & Biotechnology, Faculty of Science, Annamalai University, Annamalainagar-608002, Tamil Nadu, India
| | - Soundararajan Arvindhvv
- Department of Biochemistry & Biotechnology, Faculty of Science, Annamalai University, Annamalainagar-608002, Tamil Nadu, India
| | - Abdul Basit Baba
- Department of Biochemistry & Biotechnology, Faculty of Science, Annamalai University, Annamalainagar-608002, Tamil Nadu, India
| | - Deepak Reddy Gade
- Centre for Molecular Cancer Research, Vishnu Institute of Pharmaceutical Education and Research, Narsapur, India
| | - Gopisetty Gopal
- Department of Molecular Oncology, Cancer Institute (WIA), Adyar, Chennai 600020, Tamil Nadu, India
| | - Chitrathara K
- Department of Surgical & Gynecologic Oncology, VPS Lakeshore Hospital, Nettoor, Maradu, Kochi, Kerala 682040
| | | | - G. Bhanuprakash Reddy
- Department of Biochemistry, ICMR-National Institute of Nutrition, Hyderabad-500007, India
| | - Siddavaram Nagini
- Department of Biochemistry & Biotechnology, Faculty of Science, Annamalai University, Annamalainagar-608002, Tamil Nadu, India
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12
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Sharma M, Grewal K, Jandrotia R, Batish DR, Singh HP, Kohli RK. Essential oils as anticancer agents: Potential role in malignancies, drug delivery mechanisms, and immune system enhancement. Biomed Pharmacother 2021; 146:112514. [PMID: 34963087 DOI: 10.1016/j.biopha.2021.112514] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/30/2021] [Accepted: 12/06/2021] [Indexed: 01/04/2023] Open
Abstract
Cancer retains a central place in fatality rates among the wide variety of diseases known world over, and the conventional synthetic medicaments, albeit used until now, produce numerous side effects. As a result, newer, better, and safer alternatives such as natural plant products, are gravely required. Essential oils (EOs) offer a plethora of bioactivities including antibacterial, antiviral, antioxidant, and anticancer properties, therefore, the use of EOs in combination with synthetic drugs or aromatherapy continues to be popular in many settings. In view of the paramount importance of EOs and their potential bioactivities, this review summarizes the current knowledge on the interconnection between EOs and cancer treatment. In particular, the current review presents an updated summary of the chemical composition of EOs, their current applications in cancer treatments based on clinical studies, and the mechanism of action against the cancer cell lines. Similarly, an overview of using EOs in aromatherapy and enhancing immunity during cancer treatment is provided. Further, this review focuses on the recent technological advancements such as the loading of EOs using protein microspheres, ligands, or nanoemulsions/nanoencapsulation, which offer multiple benefits in cancer treatment via site-specific and target-oriented delivery of drugs. The continuing clinical studies of EOs implicate that their pharmacological applications are a rewarding research area.
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Affiliation(s)
- Mansi Sharma
- Department of Environment Studies, Panjab University, Chandigarh 160 014, India
| | - Kamaljit Grewal
- Department of Botany, Panjab University, Chandigarh 160 014, India
| | - Rupali Jandrotia
- Department of Botany, Panjab University, Chandigarh 160 014, India
| | | | - Harminder Pal Singh
- Department of Environment Studies, Panjab University, Chandigarh 160 014, India.
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13
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Nagini S, Nivetha R, Palrasu M, Mishra R. Nimbolide, a Neem Limonoid, Is a Promising Candidate for the Anticancer Drug Arsenal. J Med Chem 2021; 64:3560-3577. [PMID: 33739088 DOI: 10.1021/acs.jmedchem.0c02239] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nimbolide, a major limonoid constituent of Azadirachta indica, commonly known as neem, has attracted increasing research attention owing to its wide spectrum of pharmacological properties, predominantly anticancer activity. Nimbolide is reported to exert potent antiproliferative effects on a myriad cancer cell lines and chemotherapeutic efficacy in preclinical animal tumor models. The potentiality of nimbolide to circumvent multidrug resistance and aid in targeted protein degradation broaden its utility in enhancing therapeutic modalities and outcome. Accumulating evidence indicates that nimbolide prevents the acquisition of cancer hallmarks such as sustained proliferation, apoptosis evasion, invasion, angiogenesis, metastasis, and inflammation by modulating kinase-driven oncogenic signaling networks. Nimbolide has been demonstrated to abrogate aberrant activation of cellular signaling by influencing the subcellular localization of transcription factors and phosphorylation of kinases in addition to influencing the epigenome. Nimbolide, with its ever-expanding repertoire of molecular targets, is a valuable addition to the anticancer drug arsenal.
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Affiliation(s)
- Siddavaram Nagini
- Department of Biochemistry & Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamil Nadu 608002, India
| | - Ramesh Nivetha
- Department of Biochemistry & Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamil Nadu 608002, India
| | - Manikandan Palrasu
- Department of Surgery, University of Miami Miller School of Medicine, Rosenstiel Medical Sciences Building, Suite 4116, 1600 NW 10th Avenue, Miami, Florida 33136, United States
| | - Rajakishore Mishra
- Centre for Life Sciences, School of Natural Sciences, Central University of Jharkhand, Ratu-Lohardaga Road, Brambe, Ranchi, Jharkhand 835205, India
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Arumugam A, Subramani R, Lakshmanaswamy R. Involvement of actin cytoskeletal modifications in the inhibition of triple-negative breast cancer growth and metastasis by nimbolide. MOLECULAR THERAPY-ONCOLYTICS 2021; 20:596-606. [PMID: 33768141 PMCID: PMC7972938 DOI: 10.1016/j.omto.2021.02.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 02/18/2021] [Indexed: 01/04/2023]
Abstract
Triple-negative breast cancers (TNBCs) are aggressive cancers, which currently do not have effective treatment options. Migration and establishment of metastatic colonies require dynamic cytoskeletal modifications characterized by polymerization and depolymerization of actin. Studies have demonstrated a direct molecular link between the integrin-focal adhesion kinase (FAK) pathway and cytoskeletal modifications. Nimbolide, a major bioactive compound present in neem leaves, shows promising anti-cancer effect on various cancers. In this study, we have demonstrated the growth and metastasis inhibitory potential of nimbolide on TNBC cells. Nimbolide inhibited cell proliferation, migratory, and invasive abilities of TNBC cells and also changed the shape of MDA-MB-231 cells, which is correlated with cytoskeletal changes including actin depolymerization. Furthermore, analysis revealed that integrins αV and β3, ILK, FAK, and PAK levels were downregulated by nimbolide. Even in cells where Rac1/Cdc42 was constitutively activated, nimbolide inhibited the formation of filopodial structures. Immunofluorescence analysis of phosphorylated p21 activated kinase (pPAK) showed reduced expression in nimbolide-treated cells. Nimbolide significantly reduced the metastatic colony formation in lung, liver, and brain of athymic nude mice. In conclusion, our data demonstrate that nimbolide inhibits TNBC by altering the integrin and FAK signaling pathway.
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Affiliation(s)
- Arunkumar Arumugam
- Center of Emphasis in Cancer Research, Department of Biomedical Sciences, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, TX 79905, USA
| | - Ramadevi Subramani
- Center of Emphasis in Cancer Research, Department of Biomedical Sciences, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, TX 79905, USA.,Graduate School of Biomedical Sciences, Texas Tech University Health Sciences Center, El Paso, TX 79905, USA
| | - Rajkumar Lakshmanaswamy
- Center of Emphasis in Cancer Research, Department of Biomedical Sciences, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, TX 79905, USA.,Graduate School of Biomedical Sciences, Texas Tech University Health Sciences Center, El Paso, TX 79905, USA
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15
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Ram AK, Vairappan B, Srinivas BH. Nimbolide inhibits tumor growth by restoring hepatic tight junction protein expression and reduced inflammation in an experimental hepatocarcinogenesis. World J Gastroenterol 2020; 26:7131-7152. [PMID: 33362373 PMCID: PMC7723674 DOI: 10.3748/wjg.v26.i45.7131] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 09/28/2020] [Accepted: 11/12/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Altered tight junction (TJ) proteins are correlated with carcinogenesis and tumor development. Nimbolide is a tetranotriterpenoid that has been shown to have antioxidant and anti-proliferative properties; however, its anticancer effects and molecular mechanism in hepatocellular carcinoma (HCC) remains obscure.
AIM To investigate the effect of nimbolide on TJ proteins, cell cycle progression, and hepatic inflammation in a mouse model of HCC.
METHODS HCC was induced in male Swiss albino mice (CD-1 strain) by a single intraperitoneal injection of 100 mg/kg diethylnitrosamine (DEN) followed by 80 ppm N-nitrosomorpholine (NMOR) in drinking water for 28 wk. After 28 wk, nimbolide (6 mg/kg) was given orally for four consecutive weeks in DEN/NMOR induced HCC mice. At the end of the 32nd week, all the mice were sacrificed and blood and liver samples were collected for various analyses. Macroscopic examinations of hepatic nodules were assessed. Liver histology and HCC tumor markers such as alpha-fetoprotein (AFP) and glypican-3 were measured. Expression of TJ proteins, cell proliferation, and cell cycle markers, inflammatory markers, and oxidative stress markers were analyzed. In silico analysis was performed to confirm the binding and modulatory effect of nimbolide on zonula occludens 1 (ZO-1), nuclear factor of kappa light polypeptide gene enhancer in B-cells (NF-κB), and tumor necrosis factor alpha (TNF-α).
RESULTS We found nimbolide treatment at a concentration of 6 mg/kg to HCC mice reduced hepatic tumor size by 52.08% and tumor volume (P < 0.01), and delayed tumor growth in HCC mice with a concomitant reduction in tumor markers such as AFP levels (P < 0.01) and glypican-3 expression (P < 0.05). Furthermore, nimbolide treatment increased tight junction proteins such as ZO-1 and occludin expression (P < 0.05, respectively) and reduced ZO-1 associated nucleic acid binding protein expression (P < 0.001) in HCC mice liver. Nimbolide treatment to HCC mice also inhibited cell proliferation and suppressed cell cycle progression by attenuating proliferating cell nuclear antigen (P < 0.01), cyclin dependent kinase (P < 0.05), and CyclinD1 (P < 0.05) expression. In addition, nimbolide treatment to HCC mice ameliorated hepatic inflammation by reducing NF-κB, interleukin 1 beta and TNF-α expression (P < 0.05, respectively) and abrogated oxidative stress by attenuating 4-hydroxynonenal expression (P < 0.01). Molecular docking studies further confirmed that nimbolide interacts with ZO-1, NF-κB, and TNF-α.
CONCLUSION Our current study showed for the first time that nimbolide exhibits anticancer effect by reducing tumor size, tumor burden and by suppressing cell cycle progression in HCC mice. Furthermore, nimbolide treatment to HCC mice ameliorated inflammation and oxidative stress, and improved TJ proteins expression. Consequently, nimbolide could be potentially used as a natural therapeutic agent for HCC treatment, however further human studies are warranted.
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Affiliation(s)
- Amit Kumar Ram
- Liver Diseases Research Lab,Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Dhanvantari Nagar, Puducherry 605006, India
| | - Balasubramaniyan Vairappan
- Liver Diseases Research Lab,Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Dhanvantari Nagar, Puducherry 605006, India
| | - BH Srinivas
- Department of Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Dhanvantari Nagar, Puducherry 605006, India
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16
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Zhang Y, Wang X. Targeting the Wnt/β-catenin signaling pathway in cancer. J Hematol Oncol 2020; 13:165. [PMID: 33276800 PMCID: PMC7716495 DOI: 10.1186/s13045-020-00990-3] [Citation(s) in RCA: 679] [Impact Index Per Article: 169.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 11/02/2020] [Indexed: 12/16/2022] Open
Abstract
The aberrant Wnt/β-catenin signaling pathway facilitates cancer stem cell renewal, cell proliferation and differentiation, thus exerting crucial roles in tumorigenesis and therapy response. Accumulated investigations highlight the therapeutic potential of agents targeting Wnt/β-catenin signaling in cancer. Wnt ligand/ receptor interface, β-catenin destruction complex and TCF/β-catenin transcription complex are key components of the cascade and have been targeted with interventions in preclinical and clinical evaluations. This scoping review aims at outlining the latest progress on the current approaches and perspectives of Wnt/β-catenin signaling pathway targeted therapy in various cancer types. Better understanding of the updates on the inhibitors, antagonists and activators of Wnt/β-catenin pathway rationalizes innovative strategies for personalized cancer treatment. Further investigations are warranted to confirm precise and secure targeted agents and achieve optimal use with clinical benefits in malignant diseases.
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Affiliation(s)
- Ya Zhang
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China.,Department of Hematology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China.,School of medicine, Shandong University, Jinan, 250021, Shandong, China.,Shandong Provincial Engineering Research Center of Lymphoma, Jinan, 250021, Shandong, China.,Branch of National Clinical Research Center for Hematologic Diseases, Jinan, 250021, Shandong, China.,National Clinical Research Center for Hematologic Diseases, the First Affiliated Hospital of Soochow University, Suzhou, 250021, China
| | - Xin Wang
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China. .,Department of Hematology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, Shandong, China. .,School of medicine, Shandong University, Jinan, 250021, Shandong, China. .,Shandong Provincial Engineering Research Center of Lymphoma, Jinan, 250021, Shandong, China. .,Branch of National Clinical Research Center for Hematologic Diseases, Jinan, 250021, Shandong, China. .,National Clinical Research Center for Hematologic Diseases, the First Affiliated Hospital of Soochow University, Suzhou, 250021, China.
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17
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Quan Y, Gong L, He J, Zhou Y, Liu M, Cao Z, Li Y, Peng C. Aloe emodin induces hepatotoxicity by activating NF-κB inflammatory pathway and P53 apoptosis pathway in zebrafish. Toxicol Lett 2019; 306:66-79. [PMID: 30771440 DOI: 10.1016/j.toxlet.2019.02.007] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 01/12/2019] [Accepted: 02/11/2019] [Indexed: 12/20/2022]
Abstract
The aim of this study was to investigate the hepatotoxic effect and its underlying mechanism of aloe emodin (AE). AE was docked with the targets of NF-κB inflammatory pathway and P53 apoptosis pathway respectively by using molecular docking technique. To verify the results of molecular docking and further investigate the hepatotoxicity mechanism of AE, the zebrafish Tg (fabp10: EGFP) was used as an animal model in vivo. The pathological sections of zebrafish liver were analyzed to observe the histopathological changes and Sudan black B was used to study whether there were inflammatory reactions in zebrafish liver or not. Then TdT-mediated dUTP Nick-End Labeling (TUNEL) was used to detect the apoptotic signal of zebrafish liver cells, finally the mRNA expression levels as well as the protein expression levels of the targets in NF-κB and P53 pathways in zebrafish were measured by quantitative Real-Time PCR (qRT-PCR) and western blot. Molecular docking results showed that AE could successfully dock with all the targets of NF-κB and P53 pathways, and the docking scores of most of the targets were equal to or higher than that of the corresponding ligands. Pathological sections showed AE could cause zebrafish liver lesions and the result of Sudan black B staining revealed that AE blackened the liver of zebrafish with Sudan black B. Then TUNEL assay showed that a large number of dense apoptotic signals were observed in AE group, mainly distributed in the liver and yolk sac of zebrafish. The results of qRT-PCR and western blot showed that AE increased the mRNA and protein expression levels of pro-inflammatory and pro-apoptotic targets in NF-κB and P53 pathways. AE could activate the NF-κB inflammatory pathway and the P53 apoptosis pathway, and its hepatotoxic mechanism was related to activation of NF-κB-P53 inflammation-apoptosis pathways.
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Affiliation(s)
- Yunyun Quan
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China
| | - Lihong Gong
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China
| | - Junlin He
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China
| | - Yimeng Zhou
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China
| | - Meichen Liu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China
| | - Zhixing Cao
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China
| | - Yunxia Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China.
| | - Cheng Peng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China.
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Sophia J, Kowshik J, Dwivedi A, Bhutia SK, Manavathi B, Mishra R, Nagini S. Nimbolide, a neem limonoid inhibits cytoprotective autophagy to activate apoptosis via modulation of the PI3K/Akt/GSK-3β signalling pathway in oral cancer. Cell Death Dis 2018; 9:1087. [PMID: 30352996 PMCID: PMC6199248 DOI: 10.1038/s41419-018-1126-4] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 09/24/2018] [Accepted: 10/04/2018] [Indexed: 02/08/2023]
Abstract
Of late, nimbolide, a limonoid from the neem tree (Azadirachta indica) has gained increasing research attention owing to its potent antiproliferative and apoptosis-inducing effects. The present study was designed to investigate the effect of nimbolide on autophagy and the time point at which the phosphorylation status of GSK-3β and PI3K dictate the choice between autophagy and apoptosis in SCC131 and SCC4 oral cancer cells. Additionally, we analysed changes in the expression of proteins involved in autophagy and apoptosis after therapeutic intervention with nimbolide in a hamster model of oral oncogenesis. Furthermore, we also demonstrate changes in the expression of key genes involved in apoptosis and autophagy during the stepwise evolution of hamster and human OSCCs. Nimbolide-induced stereotypical changes in oral cancer cells characteristic of both apoptosis and autophagy. Time-course experiments revealed that nimbolide induces autophagy as an early event and then switches over to apoptosis. Nimbolide negatively regulates PI3K/Akt signalling with consequent increase in p-GSK-3βTyr216, the active form of GSK-3β that inhibits autophagy. Downregulation of HOTAIR, a competing endogenous RNA that sponges miR-126 may be a major contributor to the inactivation of PI3K/Akt/GSK3 signalling by nimbolide. Analysis of key markers of apoptosis and autophagy as well as p-AktSer473 during sequential progression of hamster and human OSCC revealed a gradual evolution to a pro-autophagic and antiapoptotic phenotype that could confer a survival advantage to tumors. In summary, the results of the present study provide insights into the molecular mechanisms by which nimbolide augments apoptosis by overcoming the shielding effects of cytoprotective autophagy through modulation of the phosphorylation status of Akt and GSK-3β as well as the ncRNAs miR-126 and HOTAIR. Development of phytochemicals such as nimbolide that target the complex interaction between proteins and ncRNAs that regulate the autophagy/apoptosis flux is of paramount importance in cancer prevention and therapeutics.
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Affiliation(s)
- Josephraj Sophia
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, 608 002, Tamil Nadu, India
| | - Jaganathan Kowshik
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, 608 002, Tamil Nadu, India
| | - Anju Dwivedi
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Sujit K Bhutia
- Department of Life Science, National Institute of Technology Rourkela, Rourkela, 769008, Odisha, India
| | - Bramanandam Manavathi
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Rajakishore Mishra
- Centre for Life Sciences, School of Natural Sciences, Central University of Jharkhand, Ranchi, 835205, Jharkhand, India
| | - Siddavaram Nagini
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, 608 002, Tamil Nadu, India.
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Trichosanthes kirilowii lectin alleviates diabetic nephropathy by inhibiting the LOX1/NF-κB/caspase-9 signaling pathway. Biosci Rep 2018; 38:BSR20180071. [PMID: 30038056 PMCID: PMC6127671 DOI: 10.1042/bsr20180071] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 07/05/2018] [Accepted: 07/13/2018] [Indexed: 12/13/2022] Open
Abstract
Trichosanthes kirilowii lectin (TKL) has been reported to exert hypoglycemic effects in alloxan-induced diabetic mice. However, there is no evidence showing that it helps to prevent diabetic nephropathy (DN). We used a high glucose (HG)-induced HK-2 cell model and a streptozocin (STZ)-induced Wistar rat model to investigate the effects of TKL on DN, as well as the mechanisms for those effects. Our results showed that TKL significantly increased the viability of HG-treated HK-2 cells and inhibited cell apoptosis. In vivo experiments demonstrated that TKL attenuated STZ-induced histopathological damage and the inflammatory response in rat kidney tissues. Pre-treatment of HK-2 cells or STZ-treated rats with polyinosinic acid (Poly IC), an inhibitor of lectin-like oxLDL receptor 1 (LOX1), blocked the protective effect of TKL against HG- or STZ-induced damage to kidney tissue, indicating that TKL might exert its effect via LOX1-mediated endocytosis. Additional results suggested that TKL inhibits the phosphorylation of IκB kinase β (IKKβ) and the nuclear factor-κB (NF-κB) inhibitor protein (IκBα), and thereby reduces the nuclear translocation of NF-κB (p65). ChIP assay data indicated that TKL markedly inhibits the binding of p65 to the CASP9 gene in HG-treated HK-2 cells, subsequently suppressing transcription of the CASP9 gene. In the dual-luciferase reporter assay, TKL significantly inhibited luciferase activity in cells co-transfected with p65 and a wild-type capase-9 construct instead of mutated caspase-9 constructs. Taken together, our results show that TKL helps to protect against DN by inhibiting the LOX1/NF-κB/caspase-9 signaling pathway, suggesting TKL as a promising agent for treating DN.
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A Sensitive Liquid Chromatography-Tandem Mass Spectrometry Method for the Determination of Nimbolide in Mouse Serum: Application to a Preclinical Pharmacokinetics Study. Pharmaceutics 2018; 10:pharmaceutics10030123. [PMID: 30096831 PMCID: PMC6161292 DOI: 10.3390/pharmaceutics10030123] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 07/30/2018] [Accepted: 07/31/2018] [Indexed: 02/02/2023] Open
Abstract
A sensitive and robust liquid chromatography-tandem mass spectrometric (LC-MS/MS) method was developed and validated for the determination of nimbolide in mouse serum. Exemestane was used as the internal standard (IS). Here, we employed acetonitrile-based protein precipitation (PPT) for serum sample preparation, and performed chromatographic separation using an ODS Hypersil C18 column (100 mm × 2.1 mm, 5 µm) with gradient elution (0.1% formic acid in water vs 100% acetonitrile). The run time was 6 min. Instrumental analysis was performed by electrospray ionization tandem mass spectrometry (ESI-MS/MS) in the multiple-reaction monitoring (MRM) under positive mode. A good linear calibration was achieved in the 5–1000 ng/mL range. The intra- and inter-day precisions for nimbolide were ≤12.6% and ≤13.9% respectively. Intra-day accuracy ranged from 96.9–109.3%, while inter-day accuracy ranged from 94.3–110.2%. The matrix effect of nimbolide, detected but consistent at low and high concentrations, do not affect linearity of standard curve. In conclusion, we have developed and validated a sensitive analytical method for determination of a novel natural compound nimbolide in mouse serum, and it has been successfully applied to our preclinical study in investigating the pharmacokinetic properties of nimbolide, which could greatly facilitate the preclinical development of the promising lead compound for anticancer therapy.
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Patel MJ, Tripathy S, Mukhopadhyay KD, Wangjam T, Cabang AB, Morris J, Wargovich MJ. A supercritical CO2
extract of neem leaf (A. indica
) and its bioactive liminoid, nimbolide, suppresses colon cancer in preclinical models by modulating pro-inflammatory pathways. Mol Carcinog 2018; 57:1156-1165. [DOI: 10.1002/mc.22832] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 04/16/2018] [Accepted: 04/19/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Mandakini J. Patel
- Department of Molecular Medicine; UT Health San Antonio; San Antonio Texas
| | | | | | - Tamna Wangjam
- Department of Medicine, Division of Hematology/Oncology; UT Health San Antonio; San Antonio Texas
| | - April B. Cabang
- Department of Molecular Medicine; UT Health San Antonio; San Antonio Texas
| | - Jay Morris
- Department of Molecular Medicine; UT Health San Antonio; San Antonio Texas
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Kumar S, Inigo JR, Kumar R, Chaudhary AK, O'Malley J, Balachandar S, Wang J, Attwood K, Yadav N, Hochwald S, Wang X, Chandra D. Nimbolide reduces CD44 positive cell population and induces mitochondrial apoptosis in pancreatic cancer cells. Cancer Lett 2017; 413:82-93. [PMID: 29107110 DOI: 10.1016/j.canlet.2017.10.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 10/16/2017] [Accepted: 10/19/2017] [Indexed: 12/15/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is highly aggressive disease and current treatment regimens fail to effectively cure PDAC. Development of resistance to current therapy is one of the key reasons for this outcome. Nimbolide (NL), a triterpenoid obtained from Azadirachta indica, exhibits anticancer properties in various cancer including PDAC cells. However, the underlying mechanism of this anticancer agent in PDAC cells remains undefined. We show that NL exerts a higher level of apoptotic cell death compared to the first-line agent gemcitabine for PDAC, as well as other anticancer agents including sorafenib and curcumin. The anticancer efficacy of NL was further evidenced by a reduction in the CD44+ as well as cancer stem-like cell (CSC) population, as it causes decreased sphere formation. Mechanistically, the anticancer efficacy of NL associates with reduced mutant p53 as well as increased mitochondrial activity in the form of increased mitochondrial reactive oxygen species and mitochondrial mass. Together, this study highlights the therapeutic potential of NL in mutant p53 expressing pancreatic cancer.
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Affiliation(s)
- Sandeep Kumar
- Department of Pharmacology and Therapeutics, Center for Genetics and Pharmacology, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo, NY 14263, USA
| | - Joseph R Inigo
- Department of Pharmacology and Therapeutics, Center for Genetics and Pharmacology, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo, NY 14263, USA
| | - Rahul Kumar
- Department of Pharmacology and Therapeutics, Center for Genetics and Pharmacology, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo, NY 14263, USA
| | - Ajay K Chaudhary
- Department of Pharmacology and Therapeutics, Center for Genetics and Pharmacology, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo, NY 14263, USA
| | - Jordan O'Malley
- Department of Pharmacology and Therapeutics, Center for Genetics and Pharmacology, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo, NY 14263, USA
| | - Srimmitha Balachandar
- Department of Pharmacology and Therapeutics, Center for Genetics and Pharmacology, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo, NY 14263, USA
| | - Jianmin Wang
- Department of Bioinformatics, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA
| | - Kristopher Attwood
- Department of Biostatistics, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA
| | - Neelu Yadav
- Department of Pharmacology and Therapeutics, Center for Genetics and Pharmacology, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo, NY 14263, USA
| | - Steven Hochwald
- Department of Surgical Oncology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA
| | - Xinjiang Wang
- Department of Pharmacology and Therapeutics, Center for Genetics and Pharmacology, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo, NY 14263, USA
| | - Dhyan Chandra
- Department of Pharmacology and Therapeutics, Center for Genetics and Pharmacology, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo, NY 14263, USA.
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Gupta SC, Prasad S, Tyagi AK, Kunnumakkara AB, Aggarwal BB. Neem (Azadirachta indica): An indian traditional panacea with modern molecular basis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2017; 34:14-20. [PMID: 28899496 DOI: 10.1016/j.phymed.2017.07.001] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Revised: 05/29/2017] [Accepted: 07/01/2017] [Indexed: 05/18/2023]
Abstract
BACKGROUND For centuries, agents derived from natural sources (mother nature), especially plants have been the primary source of medicine. Neem, also referred to as Azadirachta indica is one such plant that has been so named because it provides freedom from all diseases, and used for thousands of years in Indian and African continents. Different parts of the plant including flowers, leaves, seeds and bark have been used to treat both acute and chronic human diseases; and used as insecticide; antimicrobial, larvicidal, antimalarial, antibacterial, antiviral, and spermicidal. PURPOSE What is there in neem and how it manifests its wide variety of effects is the focus of this review. How neem and its constituents modulate various cellular pathways is discussed. The animal and human studies carried out with neem and its constituents is also discussed. CONCLUSION Over 1000 research articles published on neem has uncovered over 300 structurally diverse constituents, one third of which are limonoids including nimbolide, azadarachtin, and gedunin. These agents manifest their effects by modulating multiple cell signaling pathways.
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Affiliation(s)
- Subash Chandra Gupta
- Laboratory for Translational Cancer Research, Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, India.
| | - Sahdeo Prasad
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Amit K Tyagi
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, USA
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Zaghloul RA, Elsherbiny NM, Kenawy HI, El-Karef A, Eissa LA, El-Shishtawy MM. Hepatoprotective effect of hesperidin in hepatocellular carcinoma: Involvement of Wnt signaling pathways. Life Sci 2017; 185:114-125. [DOI: 10.1016/j.lfs.2017.07.026] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 07/18/2017] [Accepted: 07/23/2017] [Indexed: 02/07/2023]
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Chien SY, Hsu CH, Lin CC, Chuang YC, Lo YS, Hsi YT, Hsieh MJ, Chen MK. Nimbolide induces apoptosis in human nasopharyngeal cancer cells. ENVIRONMENTAL TOXICOLOGY 2017; 32:2085-2092. [PMID: 28383207 DOI: 10.1002/tox.22423] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 03/20/2017] [Accepted: 03/20/2017] [Indexed: 06/07/2023]
Abstract
Nasopharyngeal carcinoma (NPC), a tumor arising from epithelial cells that cover the surface and line the nasopharynx, is a rare malignancy worldwide but is prevalent in certain geographical areas, such as Southern Asia (Taiwan, Hong Kong, Singapore, Malaysia, and Southern China) and North Africa. Despite advances in diagnostic techniques and improvements in treatment modalities, the prognosis of NPC remains poor. Therefore, an effective chemotherapy regimen that enhances tumor sensitivity to chemotherapeutics is urgently required. Nimbolide, derived from Azadirachta indica, has a wide range of beneficial effects, including anti-inflammatory and anticancer properties. The present study evaluated the antitumor activity of nimbolide in NPC cells and its underlying mechanisms. Our results revealed that the treatment of HONE-1 cells with nimbolide potently inhibited cell viability. Moreover, nimbolide led to cell cycle arrest, which subsequently activated caspase-3, -8, and -9 and poly (ADP-ribose) polymerase to induce cell apoptosis. Moreover, nimbolide induced Bik, Bax, and t-Bid expression in HONE-1 cells. The results indicated that nimbolide induces apoptosis through the modulation of extracellular signal-regulated kinases 1 and 2 (ERK1/2) pathways. Nimbolide induces apoptosis in human NPC cells and is a potential chemopreventive agent against NPC proliferation. © 2016 Wiley Periodicals, Inc. Environ Toxicol 32: 2085-2092, 2017.
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Affiliation(s)
- Su-Yu Chien
- Department of Pharmacy, Changhua Christian Hospital, Changhua, 500, Taiwan
- College of Health Sciences, Chang Jung Christian University, Tainan, 71101, Taiwan
- Department of Recreation and Holistic Wellness, Mingdao University, Changhua, 52345, Taiwan
| | - Ching-Hui Hsu
- Department of Otorhinolaryngology-Head and Neck Surgery, Changhua Christian Hospital, Changhua, 500, Taiwan
| | - Chia-Chieh Lin
- Cancer Research Center, Changhua Christian Hospital, Changhua, 500, Taiwan
| | - Yi-Ching Chuang
- Cancer Research Center, Changhua Christian Hospital, Changhua, 500, Taiwan
| | - Yu-Sheng Lo
- Cancer Research Center, Changhua Christian Hospital, Changhua, 500, Taiwan
| | - Yi-Ting Hsi
- Cancer Research Center, Changhua Christian Hospital, Changhua, 500, Taiwan
| | - Ming-Ju Hsieh
- Cancer Research Center, Changhua Christian Hospital, Changhua, 500, Taiwan
- School of Optometry, Chung Shan Medical University, Taichung, 40201, Taiwan
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, 404, Taiwan
| | - Mu-Kuan Chen
- Department of Otorhinolaryngology-Head and Neck Surgery, Changhua Christian Hospital, Changhua, 500, Taiwan
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Kowshik J, Mishra R, Sophia J, Rautray S, Anbarasu K, Reddy GD, Dixit M, Mahalingam S, Nagini S. Nimbolide upregulates RECK by targeting miR-21 and HIF-1α in cell lines and in a hamster oral carcinogenesis model. Sci Rep 2017; 7:2045. [PMID: 28515436 PMCID: PMC5435722 DOI: 10.1038/s41598-017-01960-5] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 04/05/2017] [Indexed: 01/02/2023] Open
Abstract
Reversion-inducing cysteine-rich protein with Kazal motifs (RECK), a potent inhibitor of matrix metalloproteinases (MMPs) is a common negative target of oncogenic signals and a potential therapeutic target for novel drug development. Here, we show that sequential RECKlessness stimulates angiogenesis and Notch signalling in the 7,12-dimethylbenz[a]anthracene (DMBA)-induced hamster buccal pouch (HBP) carcinogenesis model, a paradigm for oral oncogenesis and chemointervention. We also report the chemotherapeutic effect of nimbolide, a limonoid from the neem tree (Azadirachta indica) based on the upregulation of RECK as well as modulation of the expression of key molecules involved in invasion and angiogenesis. We demonstrate that nimbolide upregulates RECK by targeting miR-21, and HIF-1α resulting in reduced MMP activity and blockade of VEGF and Notch signalling. Nimbolide reduced microvascular density, confirming its anti-angiogenic potential. Molecular docking analysis revealed interaction of nimbolide with HIF-1α. Additionally, we demonstrate that nimbolide upregulates RECK expression via downregulation of HIF-1α and miR-21 by overexpression and knockdown experiments in SCC4 and EAhy926 cell lines. Taken together, these findings provide compelling evidence that targeting RECK, a keystone protein that regulates mediators of invasion and angiogenesis with phytochemicals such as nimbolide may be a robust therapeutic approach to prevent oral cancer progression.
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Affiliation(s)
- Jaganathan Kowshik
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, 608 002, Tamil Nadu, India
| | - Rajakishore Mishra
- Centre for Life Sciences, School of Natural Sciences, Central University of Jharkhand, Ratu-Lohardaga Road, Brambe, Ranchi, 835205, Jharkhand, India
| | - Josephraj Sophia
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, 608 002, Tamil Nadu, India
| | - Satabdi Rautray
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, 608 002, Tamil Nadu, India
| | - Kumaraswamy Anbarasu
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - G Deepak Reddy
- Medicinal Chemistry Research Division, Vishnu Institute of Pharmaceutical Education and Research, Narsapur, India
| | - Madhulika Dixit
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - Sundarasamy Mahalingam
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - Siddavaram Nagini
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, 608 002, Tamil Nadu, India.
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Singh PR, Priya ES, Balakrishnan S, Arunkumar R, Sharmila G, Rajalakshmi M, Arunakaran J. Nimbolide inhibits androgen independent prostate cancer cells survival and proliferation by modulating multiple pro-survival signaling pathways. Biomed Pharmacother 2016; 84:1623-1634. [DOI: 10.1016/j.biopha.2016.10.076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 10/23/2016] [Accepted: 10/24/2016] [Indexed: 10/20/2022] Open
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Potential of neem ( Azadirachta indica L.) for prevention and treatment of oncologic diseases. Semin Cancer Biol 2016; 40-41:100-115. [DOI: 10.1016/j.semcancer.2016.03.002] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 03/19/2016] [Accepted: 03/21/2016] [Indexed: 01/05/2023]
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Lange N, Tontsa AT, Wegscheid C, Mkounga P, Nkengfack AE, Loscher C, Sass G, Tiegs G. The Limonoids TS3 and Rubescin E Induce Apoptosis in Human Hepatoma Cell Lines and Interfere with NF-κB Signaling. PLoS One 2016; 11:e0160843. [PMID: 27518192 PMCID: PMC4982607 DOI: 10.1371/journal.pone.0160843] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 07/26/2016] [Indexed: 01/16/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is extremely resistant towards pharmacological therapy. To date, the multi-kinase inhibitor Sorafenib is the only available therapeutic agent with the potential to prolong patient survival. Using the human hepatoma cell lines HepG2 and Huh7, we analyzed anti-cancer activities of 6 purified havanensin type limonoids isolated from the traditional African medicinal plant Trichilia rubescens Oliv. Our results show that two of the compounds, TR4 (TS3) and TR9 (Rubescin E) reduced hepatoma cell viability, but not primary hepatocyte viability, at TC50s of 5 to 10 μM. These were significantly lower than the TC50s for Sorafenib, the histone deacetylase inhibitor SAHA or 5-Fluoruracil. In comparison, TR3 (Rubescin D), a limonoid isolated in parallel and structurally highly similar to TR4 and TR9, did not interfere with hepatoma cell viability. Both, TR4 and TR9, but not TR3, induced apoptosis in hepatoma cells and interfered with NF-κB activation. TR4 as well as TR9 significantly supported anti-cancer activities of Sorafenib. In summary, the limonoids TR4 and TR9 exhibit anti-cancer activities and support Sorafenib effects in vitro, having the potential to support future HCC therapy.
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Affiliation(s)
- Nicole Lange
- Institute of Experimental Immunology and Hepatology, University Medical Center Hamburg Eppendorf, Hamburg, Germany
| | - Armelle Tsamo Tontsa
- University of Yaoundé I, Department of Organic Chemistry, P.O BOX: 812, Yaoundé, Cameroon
| | - Claudia Wegscheid
- Institute of Experimental Immunology and Hepatology, University Medical Center Hamburg Eppendorf, Hamburg, Germany
| | - Pierre Mkounga
- University of Yaoundé I, Department of Organic Chemistry, P.O BOX: 812, Yaoundé, Cameroon
| | | | - Christine Loscher
- Institute of Experimental Immunology and Hepatology, University Medical Center Hamburg Eppendorf, Hamburg, Germany
| | - Gabriele Sass
- Institute of Experimental Immunology and Hepatology, University Medical Center Hamburg Eppendorf, Hamburg, Germany
- California Institute for Medical Research, San Jose, CA, United States of America
| | - Gisa Tiegs
- Institute of Experimental Immunology and Hepatology, University Medical Center Hamburg Eppendorf, Hamburg, Germany
- * E-mail:
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Wang L, Phan DDK, Zhang J, Ong PS, Thuya WL, Soo R, Wong ALA, Yong WP, Lee SC, Ho PCL, Sethi G, Goh BC. Anticancer properties of nimbolide and pharmacokinetic considerations to accelerate its development. Oncotarget 2016; 7:44790-44802. [PMID: 27027349 PMCID: PMC5190135 DOI: 10.18632/oncotarget.8316] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Accepted: 03/07/2016] [Indexed: 12/12/2022] Open
Abstract
Nimbolide is one of the main components in the leaf extract of Azadirachta indica (A. indica). Accumulating evidence from various in vitro and in vivo studies indicates that nimbolide possesses potent anticancer activity against several types of cancer and also shows potential chemopreventive activity in animal models. The main mechanisms of action of nimbolide include anti-proliferation, induction of apoptosis, inhibition of metastasis and angiogenesis, and modulation of carcinogen-metabolizing enzymes. Although multiple pharmacodynamic (PD) studies have been carried out, nimbolide is still at the infant stage in the drug development pipeline due to the lack of systematic pharmacokinetic (PK) studies and long-term toxicological studies. Preclinical PK and toxicological studies are vital in determining the dosage range to support the safety of nimbolide for first-in-human clinical trials. In this review, we will provide a comprehensive summary for the current status of nimbolide as an anticancer and chemopreventive lead compound, and highlight the importance of systematic preclinical PK and toxicological studies in accelerating the process of application of nimbolide as a therapeutic agent against various malignancies.
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Affiliation(s)
- Lingzhi Wang
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
- Department of Pharmacology, National University Health System, Singapore
| | - Do Dang Khoa Phan
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
- Department of Pharmacy, National University of Singapore, Singapore
| | - Jingwen Zhang
- Department of Pharmacology, National University Health System, Singapore
| | - Pei-Shi Ong
- Department of Pharmacy, National University of Singapore, Singapore
| | - Win Lwin Thuya
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
- Department of Pharmacy, National University of Singapore, Singapore
| | - Ross Soo
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
- Department of Haematology-Oncology, National University Health System, Singapore
| | - Andrea Li-Ann Wong
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
- Department of Haematology-Oncology, National University Health System, Singapore
| | - Wei Peng Yong
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
- Department of Haematology-Oncology, National University Health System, Singapore
| | - Soo Chin Lee
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
- Department of Haematology-Oncology, National University Health System, Singapore
| | - Paul Chi-Lui Ho
- Department of Pharmacy, National University of Singapore, Singapore
| | - Gautam Sethi
- Department of Pharmacology, National University Health System, Singapore
| | - Boon Cher Goh
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
- Department of Pharmacology, National University Health System, Singapore
- Department of Haematology-Oncology, National University Health System, Singapore
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Seo JY, Lee C, Hwang SW, Chun J, Im JP, Kim JS. Nimbolide Inhibits Nuclear Factor-КB Pathway in Intestinal Epithelial Cells and Macrophages and Alleviates Experimental Colitis in Mice. Phytother Res 2016; 30:1605-1614. [PMID: 27270592 DOI: 10.1002/ptr.5657] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 05/02/2016] [Accepted: 05/05/2016] [Indexed: 01/27/2023]
Abstract
Nimbolide is a limonoid extracted from neem tree (Azadirachta indica) that has antiinflammatory properties. The effect of nimbolide on the nuclear factor-kappa B (NF-κB) pathway in intestinal epithelial cells (IECs), macrophages and in murine colitis models was investigated. The IEC COLO 205, the murine macrophage cell line RAW 264.7, and peritoneal macrophages from interleukin-10-deficient (IL-10-/- ) mice were preconditioned with nimbolide and then stimulated with tumor necrosis factor-α (TNF-α) or lipopolysaccharide. Dextran sulfate sodium-induced acute colitis model and chronic colitis model in IL-10-/- mice were used for in vivo experiments. Nimbolide significantly suppressed the expression of inflammatory cytokines (IL-6, IL-8, IL-12, and TNF-α) and inhibited the phosphorylation of IκBα and the DNA-binding affinity of NF-κB in IECs and macrophages. Nimbolide ameliorated weight loss, colon shortening, disease activity index score, and histologic scores in dextran sulfate sodium colitis. It also improved histopathologic scores in the chronic colitis of IL-10-/- mice. Staining for phosphorylated IκBα was significantly decreased in the colon tissue after treatment with nimbolide in both models. Nimbolide inhibits NF-κB signaling in IECs and macrophages and ameliorates experimental colitis in mice. These results suggest nimbolide could be a potentially new treatment for inflammatory bowel disease. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Ji Yeon Seo
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Changhyun Lee
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
| | - Sung Wook Hwang
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Jaeyoung Chun
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Jong Pil Im
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Joo Sung Kim
- Department of Internal Medicine and Healthcare Research Institute, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea. .,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea.
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Zhang J, Ahn KS, Kim C, Shanmugam MK, Siveen KS, Arfuso F, Samym RP, Deivasigamanim A, Lim LHK, Wang L, Goh BC, Kumar AP, Hui KM, Sethi G. Nimbolide-Induced Oxidative Stress Abrogates STAT3 Signaling Cascade and Inhibits Tumor Growth in Transgenic Adenocarcinoma of Mouse Prostate Model. Antioxid Redox Signal 2016; 24:575-89. [PMID: 26649526 DOI: 10.1089/ars.2015.6418] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
AIMS Prostate cancer (PCa) is one of the most commonly diagnosed cancers worldwide. Currently available therapies for metastatic PCa are only marginally effective, hence novel treatment modalities are urgently required. Considerable evidence(s) suggest that deregulated activation of oncogenic transcription factor, signal transducer and activator of transcription 3 (STAT3) plays a pivotal role in the development and progression of PCa. Thus, agents that can abrogate STAT3 activation could form the basis of novel therapy for PCa patients. In the present study, we analyzed whether the potential anticancer effects of nimbolide (NL), a limonoid triterpene derived from Azadirachta indica, against PCa cell lines and transgenic adenocarcinoma of mouse prostate (TRAMP) model are mediated through the negative regulation of STAT3 pathway. RESULTS Data from the in vitro studies indicated that NL could significantly inhibit cell viability, induce apoptosis, and suppress cellular invasion and migration. Interestingly, NL also abrogated STAT3 activation and this effect was found to be mediated via an increased production of reactive oxygen species (ROS) due to GSH/GSSG imbalance. Oral administration of NL significantly suppressed the tumor growth and metastasis in TRAMP mouse model without exhibiting any significant adverse effects. INNOVATION The present study demonstrates the critical role of GSH/GSSG imbalance-mediated ROS production contributing to the STAT3 inhibitory and tumor-suppressive effect of NL in PCa. CONCLUSION Overall, our findings indicate that NL exhibits significant anticancer effects in PCa that may be primarily mediated through the ROS-regulated inhibition of STAT3 signaling cascade.
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Affiliation(s)
- Jingwen Zhang
- 1 Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore
| | - Kwang Seok Ahn
- 2 College of Korean Medicine, Kyung Hee University , Seoul, Republic of Korea
| | - Chulwon Kim
- 2 College of Korean Medicine, Kyung Hee University , Seoul, Republic of Korea
| | - Muthu K Shanmugam
- 1 Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore
| | - Kodappully Sivaraman Siveen
- 1 Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore
| | - Frank Arfuso
- 3 School of Biomedical Sciences, CHIRI Biosciences Research Precinct, Curtin University , Perth, Australia
| | - Ramar Perumal Samym
- 4 Department of Anatomy, Venom and Toxin Research Programme, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore .,5 Department of Microbiology Infectious Diseases Programme, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore .,6 Department of Physiology, NUS Immunology Programme, Centre for Life Sciences, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore
| | - Amudha Deivasigamanim
- 7 Division of Cellular and Molecular Research, Humphrey Oei Institute of Cancer Research , National Cancer Centre, Singapore, Singapore
| | - Lina Hsiu Kim Lim
- 6 Department of Physiology, NUS Immunology Programme, Centre for Life Sciences, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore
| | - Lingzhi Wang
- 1 Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore .,8 Centre for Translational Medicine (CeTM), Cancer Science Institute, National University of Singapore , Singapore, Singapore
| | - Boon Cher Goh
- 1 Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore .,8 Centre for Translational Medicine (CeTM), Cancer Science Institute, National University of Singapore , Singapore, Singapore
| | - Alan Prem Kumar
- 1 Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore .,8 Centre for Translational Medicine (CeTM), Cancer Science Institute, National University of Singapore , Singapore, Singapore .,9 School of Biomedical Sciences, Curtin University , Perth, Australia .,10 Department of Biological Sciences, University of North Texas , Denton, Texas
| | - Kam Man Hui
- 7 Division of Cellular and Molecular Research, Humphrey Oei Institute of Cancer Research , National Cancer Centre, Singapore, Singapore
| | - Gautam Sethi
- 1 Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore .,9 School of Biomedical Sciences, Curtin University , Perth, Australia
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Alzohairy MA. Therapeutics Role of Azadirachta indica (Neem) and Their Active Constituents in Diseases Prevention and Treatment. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2016; 2016:7382506. [PMID: 27034694 PMCID: PMC4791507 DOI: 10.1155/2016/7382506] [Citation(s) in RCA: 194] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 01/07/2016] [Accepted: 01/11/2016] [Indexed: 02/08/2023]
Abstract
Neem (Azadirachta indica) is a member of the Meliaceae family and its role as health-promoting effect is attributed because it is rich source of antioxidant. It has been widely used in Chinese, Ayurvedic, and Unani medicines worldwide especially in Indian Subcontinent in the treatment and prevention of various diseases. Earlier finding confirmed that neem and its constituents play role in the scavenging of free radical generation and prevention of disease pathogenesis. The studies based on animal model established that neem and its chief constituents play pivotal role in anticancer management through the modulation of various molecular pathways including p53, pTEN, NF-κB, PI3K/Akt, Bcl-2, and VEGF. It is considered as safe medicinal plants and modulates the numerous biological processes without any adverse effect. In this review, I summarize the role of Azadirachta indica in the prevention and treatment of diseases via the regulation of various biological and physiological pathways.
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Affiliation(s)
- Mohammad A. Alzohairy
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, P.O. Box 6699, Buraidah, Saudi Arabia
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The heparan sulfate mimetic PG545 interferes with Wnt/β-catenin signaling and significantly suppresses pancreatic tumorigenesis alone and in combination with gemcitabine. Oncotarget 2016; 6:4992-5004. [PMID: 25669977 PMCID: PMC4467129 DOI: 10.18632/oncotarget.3214] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2014] [Accepted: 12/30/2014] [Indexed: 12/21/2022] Open
Abstract
The heparan sulfate mimetic PG545 has been shown to exert anti-angiogenic and anti-metastatic activity in vitro and in vivo cancer models. Although much of this activity has been attributed to inhibition of heparanase and heparan sulfate-binding growth factors, it was hypothesized that PG545 may additionally disrupt Wnt signaling, an important pathway underlying the malignancy of pancreatic cancer. We show that PG545, by directly interacting with Wnt3a and Wnt7a, inhibits Wnt/β-catenin signaling leading to inhibition of proliferation in pancreatic tumor cell lines. Additionally, we demonstrate for the first time that the combination of PG545 with gemcitabine has strong synergistic effects on viability, motility and apoptosis induction in several pancreatic cell lines. In an orthotopic xenograft mouse model, combination of PG545 with gemcitabine efficiently inhibited tumor growth and metastasis compared to single treatment alone. Also, PG545 treatment alone decreased the levels of β-catenin and its downstream targets, cyclin D1, MMP-7 and VEGF which is consistent with our in vitro data. Collectively, our findings suggest that PG545 exerts anti-tumor activity by disrupting Wnt/β-catenin signaling and combination with gemcitabine should be considered as a novel therapeutic strategy for pancreatic cancer treatment.
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Bagheri G, Mirzaei M, Mehrabi R, Sharifi-Rad J. Cytotoxic and Antioxidant Activities of Alstonia scholaris, Alstonia venenata and Moringa oleifera Plants From India. Jundishapur J Nat Pharm Prod 2016. [DOI: 10.17795/jjnpp-31129] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Sophia J, Kiran Kishore T K, Kowshik J, Mishra R, Nagini S. Nimbolide, a neem limonoid inhibits Phosphatidyl Inositol-3 Kinase to activate Glycogen Synthase Kinase-3β in a hamster model of oral oncogenesis. Sci Rep 2016; 6:22192. [PMID: 26902162 PMCID: PMC4763291 DOI: 10.1038/srep22192] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 02/09/2016] [Indexed: 12/14/2022] Open
Abstract
Glycogen synthase kinase-3β (GSK-3β), a serine/threonine kinase is frequently inactivated by the oncogenic signalling kinases PI3K/Akt and MAPK/ERK in diverse malignancies. The present study was designed to investigate GSK-3β signalling circuits in the 7,12-dimethylbenz[a]anthracene (DMBA)-induced hamster buccal pouch (HBP) carcinogenesis model and the therapeutic potential of the neem limonoid nimbolide. Inactivation of GSK-3β by phosphorylation at serine 9 and activation of PI3K/Akt, MAPK/ERK and β-catenin was associated with increased cell proliferation and apoptosis evasion during stepwise evolution of HBP carcinomas. Administration of nimbolide inhibited PI3K/Akt signalling with consequent activation of GSK-3β thereby inducing trafficking of β-catenin away from the nucleus and enhancing the expression of miR-126 and let-7. Molecular docking studies confirmed interaction of nimbolide with PI3K, Akt, ERK and GSK-3β. Furthermore, nimbolide attenuated cell proliferation and induced apoptosis as evidenced by increased p-cyclin D1Thr286 and pro-apoptotic proteins. The present study has unravelled aberrant phosphorylation as a key determinant for oncogenic signalling and acquisition of cancer hallmarks in the HBP model. The study has also provided mechanistic insights into the chemotherapeutic potential of nimbolide that may be a useful addition to the armamentarium of natural compounds targeting PI3K for oral cancer treatment.
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Affiliation(s)
- Josephraj Sophia
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar-608 002, Tamil Nadu, India
| | - Kranthi Kiran Kishore T
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar-608 002, Tamil Nadu, India
| | - Jaganathan Kowshik
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar-608 002, Tamil Nadu, India
| | - Rajakishore Mishra
- Centre for Life Sciences, School of Natural Sciences, Central University of Jharkhand, Ratu-Lohardaga Road, Brambe, Ranchi 835205, Jharkhand, India
| | - Siddavaram Nagini
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar-608 002, Tamil Nadu, India
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Morris J, Fang Y, De Mukhopdhyay K, Wargovich MJ. Natural Agents Used in Chemoprevention of Aerodigestive and GI Cancers. ACTA ACUST UNITED AC 2016; 2:11-20. [PMID: 27134816 DOI: 10.1007/s40495-016-0047-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Aerodigestive cancers are on an increasing level in both occurrence and mortality. A major cause in many of these cancers is disruption of the inflammatory pathway, leading to increased cell proliferation, and epigenetic silencing of normal regulatory genes. Here we review the research on several natural products: silibinin, silymarin, quercetin, neem & nimbolide, gingerol, epigallatecatechin-3- gallate, curcumin, genistein and resveratrol conducted on aerodigestive cancers. These types of cancers are primarily those from oral cavity, esophagus/windpipe, stomach, small and large intestine, colon/rectum and bile/pancreas tissues. We report on the utilization in vivo and in vitro systems to research these dose effects on the inflammatory and epigenetic pathway components within the aerodigestive cancer. To follow up on the basic research we will discuss remaining research questions and future directions involving these natural products as putative stand alone or in combination with clinical agents.
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Affiliation(s)
- Jay Morris
- Department of Molecular Medicine, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229
| | - Yuan Fang
- Department of Molecular Medicine, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229
| | - Keya De Mukhopdhyay
- Department of Molecular Medicine, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229
| | - Michael J Wargovich
- Department of Molecular Medicine, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229
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Kishore T KK, Ganugula R, Gade DR, Reddy GB, Nagini S. Gedunin abrogates aldose reductase, PI3K/Akt/mToR, and NF-κB signaling pathways to inhibit angiogenesis in a hamster model of oral carcinogenesis. Tumour Biol 2015; 37:2083-93. [PMID: 26342697 DOI: 10.1007/s13277-015-4003-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 08/25/2015] [Indexed: 01/05/2023] Open
Abstract
Aberrant activation of oncogenic signaling pathways plays a central role in tumor development and progression. The aim of this present study was to investigate the chemopreventive effects of the neem limonoid gedunin in the hamster model of oral cancer based on its ability to modulate aldose reductase (AR), phosphatidyl inositol-3-kinase (PI3K)/Akt, and nuclear factor kappa B (NF-κB) pathways to block angiogenesis. Administration of gedunin suppressed the development of HBP carcinomas by inhibiting PI3K/Akt and NF-κB pathways through the inactivation of Akt and inhibitory kappa B kinase (IKK), respectively. Immunoblot and molecular docking interactions revealed that inhibition of these signaling pathways may be mediated via inactivation of AR by gedunin. Gedunin blocked angiogenesis by downregulating the expression of miR-21 and the pro-angiogenic factors vascular endothelial growth factor and hypoxia inducible factor-1 alpha (HIF-1α). In conclusion, the results of the present study provide compelling evidence that gedunin prevents progression of hamster buccal pouch (HBP) carcinomas via inhibition of the kinases Akt, IKK, and AR, and the oncogenic transcription factors NF-κB and HIF-1α to block angiogenesis.
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Affiliation(s)
- Kranthi Kiran Kishore T
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, 608 002, Tamil Nadu, India
| | - Raghu Ganugula
- Biochemistry Division, National Institute of Nutrition, Hyderabad, 500 007, India
| | - Deepak Reddy Gade
- Medicinal Chemistry Research Division, Vishnu Institute of Pharmaceutical Education and Research, Narsapur, India
| | | | - Siddavaram Nagini
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, 608 002, Tamil Nadu, India.
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Manosroi A, Kitdamrongtham W, Ishii K, Shinozaki T, Tachi Y, Takagi M, Ebina K, Zhang J, Manosroi J, Akihisa R, Akihisa T. Limonoids from Azadirachta indica var. siamensis extracts and their cytotoxic and melanogenesis-inhibitory activities. Chem Biodivers 2015; 11:505-31. [PMID: 24706622 DOI: 10.1002/cbdv.201300406] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Indexed: 12/26/2022]
Abstract
Six new limonoids, 7-benzoyl-17-epinimbocinol (5), 3-acetyl-7-tigloylnimbidinin (8), 1-isovaleroyl-1-detigloylsalanninolide (15), 2,3-dihydro-3α-methoxynimbolide (16), deacetyl-20,21-epoxy-20,22-dihydro-21-deoxyisonimbinolide (26), and deacetyl-20,21,22,23-tetrahydro-20,22-dihydroxy-21,23-dimethoxynimbin (27), along with 28 known limonoids, 1-4, 6, 7, 9-14, 17-25, and 28-34, and two known flavonoids, 35 and 36, have been isolated from the extracts of bark, leaves, roots, and seeds of Azadirachta indica A. Juss. var. siamensis Valeton (Siamese neem tree; Meliaceae). The structures of the new compounds were elucidated on the basis of extensive spectroscopic analysis and comparison with literature data. All of these compounds were evaluated for their cytotoxic activities against leukemia (HL60), lung (A549), stomach (AZ521), and breast (SK-BR-3) cancer cell lines. Eleven compounds, 1, 2, 4-7, 13, 16, 17, 29, and 30, exhibited potent cytotoxicities against one or more cell lines with IC50 values in the range of 0.1-9.3 μM. Compound 16 induced apoptotic cell death in AZ521 cells upon evaluation of the apoptosis-inducing activity by flow cytometric analysis. Western blot analysis on AZ521 cells revealed that compound 16 activated caspases-3, -8, and -9, while increasing the ratio of Bax/Bcl-2. This suggested that 16 induced apoptosis via both mitochondrial and death receptor pathways in AZ521. In addition, upon evaluation of all compounds against the melanogenesis in B16 melanoma cells induced with α-melanocyte-stimulating hormone (α-MSH), 20 limonoids, i.e., 1-3, 6, 9-11, 18, 19, 21-29, 32, and 34, and two flavonoids, 35 and 36, exhibited melanogenesis-inhibitory activities, with no, or almost no, toxicities to the cells at lower and/or higher concentrations, which were more potent than the reference arbutin, a known melanogenesis inhibitor. Western blot analysis showed that nimbin (18) reduced the protein levels of microphtalmia-associated transcription factor (MITF), tyrosinase, tyrosine-related protein 1 (TRP-1), and TRP-2 mostly in a concentration-dependent manner, indicating that 18 inhibits melanogenesis on a α-MSH-stimulated B16 melanoma cells by, at least in part, inhibiting the expression of MITF, followed by decreasing the expression of tyrosinase, TRP-1, and TRP-2.
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Affiliation(s)
- Aranya Manosroi
- Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand, (phone: +66-53-944338; fax: +66-53-894169)
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Hsieh YH, Lee CH, Chen HY, Hsieh SC, Lin CL, Tsai JP. Induction of cell cycle arrest, DNA damage, and apoptosis by nimbolide in human renal cell carcinoma cells. Tumour Biol 2015; 36:7539-47. [PMID: 25916210 DOI: 10.1007/s13277-015-3477-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 04/20/2015] [Indexed: 12/20/2022] Open
Abstract
Nimbolide is a tetranortriterpenoid isolated from the leaves and flowers of Azadirachta indica which has been shown to exhibit anticancer, antioxidant, anti-inflammatory, and anti-invasive properties in a variety of cancer cells. However, the anti-tumor effect on human renal cell carcinoma (RCC) cells is unknown. In this study, we found that nimbolide treatment had a cytotoxic effect on 786-O and A-498 RCC cells in a dose-dependent manner. According to flow cytometric analysis, nimbolide treatment resulted in G2/M arrest in 786-O and A-498 cells accompanied with an increase in the phosphorylation status of p53, cdc2, cdc25c, and decreased expressions of cyclin A, cyclin B, cdc2, and cdc25c. Nimbolide also caused DNA damage in a dose-dependent manner as determined by comet assay and measurement of γ-H2AX. In addition, apoptotic cells were observed in an Annexin V-FITC/propidium iodide double-stained assay. The activities of caspase-3, -9, and poly ADP-ribose polymerase (PARP) were increased, and the expression of pro-caspase-8 was decreased in nimbolide-treated 786-O and A-498 cells. Western blot analysis revealed that the levels of intrinsic-related apoptotic proteins Bax and extrinsic-related proteins (DR5, CHOP) were significantly increased in nimbolide-treated 786-O and A-498 cells. In addition, the expressions of Bcl-2 and Mcl-1 were decreased in 786-O and A-498 cells after nimbolide treatment. We conclude that nimbolide can inhibit the growth of human RCC cells by inducing G2/M phase arrest by modulating cell cycle-related proteins and cell apoptosis by regulating intrinsic and extrinsic caspase signaling pathways. Nimbolide may be a promising therapeutic strategy for the treatment of RCC.
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Affiliation(s)
- Yi-Hsien Hsieh
- Department of Biochemistry, School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Clinical laboratory, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chien-Hsing Lee
- Division of Pediatric Surgery, Changhua Christian Hospital, Changhua, Taiwan.,Graduate Institute of Medical Sciences, Chang Jung Christian University, Tainan, Taiwan
| | - Hsiao-Yun Chen
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan
| | - Shu-Ching Hsieh
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Chia-Liang Lin
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan
| | - Jen-Pi Tsai
- School of Medicine, Tzu Chi University, Hualien, Taiwan. .,Department of Nephrology, Buddhist Dalin Tzu Chi General Hospital, No 2, Minsheng Road, Dalin Township, Chiayi, Taiwan.
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Elumalai P, Brindha Mercy A, Arunkamar R, Sharmila G, Bhat FA, Balakrishnan S, Raja Singh P, Arunakaran J. Nimbolide inhibits invasion and migration, and down-regulates uPAR chemokine gene expression, in two breast cancer cell lines. Cell Prolif 2015; 47:540-52. [PMID: 25377085 DOI: 10.1111/cpr.12148] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 08/06/2014] [Indexed: 01/10/2023] Open
Abstract
OBJECTIVES Breast cancer is the most frequently diagnosed cancer and the leading cause of cancer death in women, worldwide. Urokinase type plasminogen activator (uPA) is a serine protease that is involved in cancer progression, especially invasion and metastasis of breast cancer. Nimbolide is a potent cytotoxic limnoid isolated from Azadirachta indica. Our previous studies have shown that nimbolide elicits pleiotropic effects on breast cancer cells; however, its roles in invasion and migration have not previously been fully elucidated. MATERIALS AND METHODS Protein expression of pEGFR, VEGFR, NFκB, IKKα, IKKβ, MMP-2, MMP-9 and TIMP-2 were analysed by western blotting. We also analysed expressions of uPA, uPAR genes and chemokines by real-time PCR. Breast cancer cell invasion was assessed by transwell invasion assay and cell migration analysed by scratch wound healing assay. RESULTS Our results showed that reduced protein expression of pEGFR, VEGFR, NFκB, IKKα, β, MMP-2, MMP-9 and TIMP-2 was higher in nimbolide-treated breast cancer cells. mRNA expression of uPA, uPAR, chemokines and their receptors were also significantly reduced in response to nimbolide treatment. Nimbolide inhibited breast cancer cell migration and invasion as shown in transwell invasion and wound healing assays. CONCLUSION These results clearly proved inhibitory effects of nimbolide on tumour cell invasion and migration by down-regulating proteins critically involved in regulation of cell invasion and metastasis, suggesting a possible therapeutic role of nimbolide for breast cancer.
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Affiliation(s)
- P Elumalai
- Department of Endocrinology, Dr. ALM Post Graduate Institute of Basic Medical Sciences, University of Madras, Chennai, 600113, India
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Lee J, Jo DG, Park D, Chung HY, Mattson MP. Adaptive cellular stress pathways as therapeutic targets of dietary phytochemicals: focus on the nervous system. Pharmacol Rev 2015; 66:815-68. [PMID: 24958636 DOI: 10.1124/pr.113.007757] [Citation(s) in RCA: 99] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
During the past 5 decades, it has been widely promulgated that the chemicals in plants that are good for health act as direct scavengers of free radicals. Here we review evidence that favors a different hypothesis for the health benefits of plant consumption, namely, that some phytochemicals exert disease-preventive and therapeutic actions by engaging one or more adaptive cellular response pathways in cells. The evolutionary basis for the latter mechanism is grounded in the fact that plants produce natural antifeedant/noxious chemicals that discourage insects and other organisms from eating them. However, in the amounts typically consumed by humans, the phytochemicals activate one or more conserved adaptive cellular stress response pathways and thereby enhance the ability of cells to resist injury and disease. Examplesof such pathways include those involving the transcription factors nuclear factor erythroid 2-related factor 2, nuclear factor-κB, hypoxia-inducible factor 1α, peroxisome proliferator-activated receptor γ, and forkhead box subgroup O, as well as the production and action of trophic factors and hormones. Translational research to develop interventions that target these pathways may lead to new classes of therapeutic agents that act by stimulating adaptive stress response pathways to bolster endogenous defenses against tissue injury and disease. Because neurons are particularly sensitive to potentially noxious phytochemicals, we focus on the nervous system but also include findings from other cell types in which actions of phytochemicals on specific signal transduction pathways have been more thoroughly studied.
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Affiliation(s)
- Jaewon Lee
- Department of Pharmacy, College of Pharmacy, and Molecular Inflammation Research Center for Aging Intervention, Pusan National University, Geumjeong-gu, Busan, Republic of Korea (J.L., D.P., H.Y.C.); School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea (D.-G.J.); Laboratory of Neurosciences, National Institute on Aging Intramural Research Program, Baltimore, Maryland (M.P.M.); and Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland (M.P.M.)
| | - Dong-Gyu Jo
- Department of Pharmacy, College of Pharmacy, and Molecular Inflammation Research Center for Aging Intervention, Pusan National University, Geumjeong-gu, Busan, Republic of Korea (J.L., D.P., H.Y.C.); School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea (D.-G.J.); Laboratory of Neurosciences, National Institute on Aging Intramural Research Program, Baltimore, Maryland (M.P.M.); and Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland (M.P.M.)
| | - Daeui Park
- Department of Pharmacy, College of Pharmacy, and Molecular Inflammation Research Center for Aging Intervention, Pusan National University, Geumjeong-gu, Busan, Republic of Korea (J.L., D.P., H.Y.C.); School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea (D.-G.J.); Laboratory of Neurosciences, National Institute on Aging Intramural Research Program, Baltimore, Maryland (M.P.M.); and Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland (M.P.M.)
| | - Hae Young Chung
- Department of Pharmacy, College of Pharmacy, and Molecular Inflammation Research Center for Aging Intervention, Pusan National University, Geumjeong-gu, Busan, Republic of Korea (J.L., D.P., H.Y.C.); School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea (D.-G.J.); Laboratory of Neurosciences, National Institute on Aging Intramural Research Program, Baltimore, Maryland (M.P.M.); and Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland (M.P.M.)
| | - Mark P Mattson
- Department of Pharmacy, College of Pharmacy, and Molecular Inflammation Research Center for Aging Intervention, Pusan National University, Geumjeong-gu, Busan, Republic of Korea (J.L., D.P., H.Y.C.); School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea (D.-G.J.); Laboratory of Neurosciences, National Institute on Aging Intramural Research Program, Baltimore, Maryland (M.P.M.); and Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland (M.P.M.)
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Elumalai P, Arunakaran J. Review on molecular and chemopreventive potential of nimbolide in cancer. Genomics Inform 2014; 12:156-64. [PMID: 25705153 PMCID: PMC4330249 DOI: 10.5808/gi.2014.12.4.156] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Revised: 11/09/2014] [Accepted: 11/09/2014] [Indexed: 12/16/2022] Open
Abstract
Cancer is the most dreaded disease in human and also major health problem worldwide. Despite its high occurrence, the exact molecular mechanisms of the development and progression are not fully understood. The existing cancer therapy based on allopathic medicine is expensive, exhibits side effects; and may also alter the normal functioning of genes. Thus, a non-toxic and effective mode of treatment is needed to control cancer development and progression. Some medicinal plants offer a safe, effective and affordable remedy to control the cancer progression. Nimbolide, a limnoid derived from the neem (Azadirachta indica) leaves and flowers of neem, is widely used in traditional medical practices for treating various human diseases. Nimbolide exhibits several pharmacological effects among which its anticancer activity is the most promising. The previous studies carried out over the decades have shown that nimbolide inhibits cell proliferation and metastasis of cancer cells. This review highlights the current knowledge on the molecular targets that contribute to the observed anticancer activity of nimbolide related to induction of apoptosis and cell cycle arrest; and inhibition of signaling pathways related to cancer progression.
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Affiliation(s)
- Perumal Elumalai
- Department of Endocrinology, Dr. ALM Post Graduate Institute of Basic Medical Sciences, University of Madras, Chennai 600113, India
| | - Jagadeesan Arunakaran
- Department of Endocrinology, Dr. ALM Post Graduate Institute of Basic Medical Sciences, University of Madras, Chennai 600113, India
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Cerezo D, Cánovas M, García-Peñarrubia P, Martín-Orozco E. Collateral sensitivity to cold stress and differential BCL-2 family expression in new daunomycin-resistant lymphoblastoid cell lines. Exp Cell Res 2014; 331:11-20. [PMID: 25498972 DOI: 10.1016/j.yexcr.2014.11.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Revised: 11/12/2014] [Accepted: 11/24/2014] [Indexed: 01/02/2023]
Abstract
The acquisition of a multidrug-resistant (MDR) phenotype by tumor cells is one of the main causes of chemotherapy failure in cancer, and, usually, is due to the increased expression of P-glycoprotein (MDR-1, P-gp, ABCB1), a pump that expels chemotherapeutics from the cell and/or regulates apoptosis. Thus, it is fundamental to find drugs or stress stimuli with a capacity to induce apoptosis in such cells and to identify the mechanisms involved. We address this matter in human cells and establish new daunomycin (DNM)-resistant cell lines (IM-9R) by exposing the parental lymphoblastic cells (IM-9) to increasing doses of the anti-neoplastic drug, daunomycin. The resistance level of IM-9R cell lines, MDR-1 expression and functionality, collateral sensitivity and Bcl-2 and caspases protein expression are analyzed. As a result, we show for the first time that, unlike the parental cells, human lymphoblastic resistant cells exhibit collateral sensitivity to cold stress, confirming that this phenomenon is not exclusive to murine leukemic cells, but a broader one associated with the acquisition of drug resistance. Furthermore, the new resistant cell lines undergo a significant increase in active caspase-3 and -9 levels and drastic changes in Bcl-2 family protein expression during the process of MDR phenotype acquisition.
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Affiliation(s)
- David Cerezo
- Department of Biochemistry and Molecular Biology B and Immunology, University of Murcia, Murcia, Spain
| | - Manuel Cánovas
- Department of Biochemistry and Molecular Biology B and Immunology, University of Murcia, Murcia, Spain
| | - Pilar García-Peñarrubia
- Department of Biochemistry and Molecular Biology B and Immunology, University of Murcia, Murcia, Spain
| | - Elena Martín-Orozco
- Department of Biochemistry and Molecular Biology B and Immunology, University of Murcia, Murcia, Spain.
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Wang LL, Jiang CS, Fu Y, Chen FF, Lan LF, Zhang HY, Guo YW. Two New Limonoids from the Root Bark of Chinese Medicinal PlantDictamnus dasycarpus. Helv Chim Acta 2014. [DOI: 10.1002/hlca.201400027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Hao F, Kumar S, Yadav N, Chandra D. Neem components as potential agents for cancer prevention and treatment. Biochim Biophys Acta Rev Cancer 2014; 1846:247-57. [PMID: 25016141 DOI: 10.1016/j.bbcan.2014.07.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Revised: 06/08/2014] [Accepted: 07/03/2014] [Indexed: 02/05/2023]
Abstract
Azadirachta indica, also known as neem, is commonly found in many semi-tropical and tropical countries including India, Pakistan, and Bangladesh. The components extracted from neem plant have been used in traditional medicine for the cure of multiple diseases including cancer for centuries. The extracts of seeds, leaves, flowers, and fruits of neem have consistently shown chemopreventive and antitumor effects in different types of cancer. Azadirachtin and nimbolide are among the few bioactive components in neem that have been studied extensively, but research on a great number of additional bioactive components is warranted. The key anticancer effects of neem components on malignant cells include inhibition of cell proliferation, induction of cell death, suppression of cancer angiogenesis, restoration of cellular reduction/oxidation (redox) balance, and enhancement of the host immune responses against tumor cells. While the underlying mechanisms of these effects are mostly unclear, the suppression of NF-κB signaling pathway is, at least partially, involved in the anticancer functions of neem components. Importantly, the anti-proliferative and apoptosis-inducing effects of neem components are tumor selective as the effects on normal cells are significantly weaker. In addition, neem extracts sensitize cancer cells to immunotherapy and radiotherapy, and enhance the efficacy of certain cancer chemotherapeutic agents. This review summarizes the current updates on the anticancer effects of neem components and their possible impact on managing cancer incidence and treatment.
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Affiliation(s)
- Fang Hao
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA
| | - Sandeep Kumar
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA
| | - Neelu Yadav
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA
| | - Dhyan Chandra
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA.
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Essential oils and their constituents as anticancer agents: a mechanistic view. BIOMED RESEARCH INTERNATIONAL 2014; 2014:154106. [PMID: 25003106 PMCID: PMC4070586 DOI: 10.1155/2014/154106] [Citation(s) in RCA: 127] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Accepted: 04/11/2014] [Indexed: 12/31/2022]
Abstract
Exploring natural plant products as an option to find new chemical entities as anticancer agents is one of the fastest growing areas of research. Recently, in the last decade, essential oils (EOs) have been under study for their use in cancer therapy and the present review is an attempt to collect and document the available studies indicating EOs and their constituents as anticancer agents. This review enlists nearly 130 studies of EOs from various plant species and their constituents that have been studied so far for their anticancer potential and these studies have been classified as in vitro and in vivo studies for EOs and their constituents. This review also highlights in-depth various mechanisms of action of different EOs and their constituents reported in the treatment strategies for different types of cancer. The current review indicates that EOs and their constituents act by multiple pathways and mechanisms involving apoptosis, cell cycle arrest, antimetastatic and antiangiogenic, increased levels of reactive oxygen and nitrogen species (ROS/RNS), DNA repair modulation, and others to demonstrate their antiproliferative activity in the cancer cell. The effect of EOs and their constituents on tumour suppressor proteins (p53 and Akt), transcription factors (NF- κB and AP-1), MAPK-pathway, and detoxification enzymes like SOD, catalase, glutathione peroxidase, and glutathione reductase has also been discussed.
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B. Kumar N, Dhurandhar M, Aggarwal B, Anant S, Daniel K, Deng G, Djeu J, Dou J, Hawk E, Jayaram B, Jia L, Joshi R, Kararala M, Karunagaran D, Kucuk O, Kumar L, Malafa M, Samathanam GJ, Sarkar F, Siddiqi M, Singh RP, Srivastava A, White JD. Proceedings of the Indo-U.S. bilateral workshop on accelerating botanicals/biologics agent development research for cancer chemoprevention, treatment, and survival. Cancer Med 2014; 2:108-15. [PMID: 24279005 PMCID: PMC3797562 DOI: 10.1002/cam4.42] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
With the evolving evidence of the promise of botanicals/biologics for cancer chemoprevention and treatment, an Indo-U.S. collaborative Workshop focusing on “Accelerating Botanicals Agent Development Research for Cancer Chemoprevention and Treatment” was conducted at the Moffitt Cancer Center, 29–31 May 2012. Funded by the Indo-U.S. Science and Technology Forum, a joint initiative of Governments of India and the United States of America and the Moffitt Cancer Center, the overall goals of this workshop were to enhance the knowledge (agents, molecular targets, biomarkers, approaches, target populations, regulatory standards, priorities, resources) of a multinational, multidisciplinary team of researcher's to systematically accelerate the design, to conduct a successful clinical trials to evaluate botanicals/biologics for cancer chemoprevention and treatment, and to achieve efficient translation of these discoveries into the standards for clinical practice that will ultimately impact cancer morbidity and mortality. Expert panelists were drawn from a diverse group of stakeholders, representing the leadership from the National Cancer Institute's Office of Cancer Complementary and Alternative Medicine (OCCAM), NCI Experimental Therapeutics (NExT), Food and Drug Administration, national scientific leadership from India, and a distinguished group of population, basic and clinical scientists from the two countries, including leaders in bioinformatics, social sciences, and biostatisticians. At the end of the workshop, we established four Indo-U.S. working research collaborative teams focused on identifying and prioritizing agents targeting four cancers that are of priority to both countries. Presented are some of the key proceedings and future goals discussed in the proceedings of this workshop.
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Affiliation(s)
| | - Medha Dhurandhar
- Centre for Development of Advanced Computing, Pune UniversityPune, 411007, India
| | - Bharat Aggarwal
- The University of Texas, M.D. Anderson Cancer CenterHouston, Texas, 77054
| | - Shrikant Anant
- The University of Kansas Medical CenterKansas City, Kansas, 66160
| | | | - Gary Deng
- Memorial Sloan-Kettering Cancer CenterNew York, New York, 10021
| | - Julie Djeu
- Moffitt Cancer Center, Tampa, Florida, 33612-9497
| | - Jinhui Dou
- Food and Drug AdministrationSilver Springs, Maryland, 20993
| | - Ernest Hawk
- The University of Texas, M.D. Anderson Cancer CenterHouston, Texas, 77054
| | - B. Jayaram
- India Institute of Technology-DelhiNew Delhi, 110016, India
| | - Libin Jia
- National Cancer Institute, NIHBethesda, Maryland, 20892
| | - Rajendra Joshi
- Bioinformatics Scientific and Engineering Computing, Pune UniversityPune, 411007, India
| | | | - Devarajan Karunagaran
- Department of Biotechnology, India Institute of Technology – MadrasChennai, 600036, India
| | - Omer Kucuk
- Emory Healthcare, The Emory Clinic Winship Cancer InstituteNE Atlanta, Georgia, 30322
| | - Lalit Kumar
- Institute Rotary Cancer Hospital (IRCH), All India Institute of Medical SciencesNew Delhi, 110029, India
| | | | - G. J. Samathanam
- Department and Transfer DivisionDepartment of Science and Technology, Government of IndiaIndia
| | - Fazlul Sarkar
- Barbara Ann Karmanos Cancer InstituteDetroit, Michigan, 48201
| | | | - Rana P. Singh
- School of Life Sciences, Central University of GujaratGujarat, 382030, India
| | - Anil Srivastava
- Open Health Systems Laboratory at Johns Hopkins Montgomery County CampusRockville, Maryland, 20850
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Bodduluru LN, Kasala ER, Thota N, Barua CC, Sistla R. Chemopreventive and therapeutic effects of nimbolide in cancer: the underlying mechanisms. Toxicol In Vitro 2014; 28:1026-35. [PMID: 24759803 DOI: 10.1016/j.tiv.2014.04.011] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 04/07/2014] [Accepted: 04/14/2014] [Indexed: 12/14/2022]
Abstract
Cancer chemoprevention is a strategy taken to block, reverse or retard the multistep process of carcinogenesis, including the blockage of its vital morphogenetic milestones viz. normal-preneoplasia-neoplasia-metastasis. Naturally occurring phytochemicals are becoming increasingly popular over synthetic drugs for several reasons, including safety, efficacy and easy availability. Nimbolide, a triterpene derived from the leaves and flowers of neem, is widely used in traditional medical practices for treating various human ailments. The neem limonoid exhibits multiple pharmacological effects among which its anticancer activity is the most promising. The preclinical and mechanistic studies carried over the decades have shown that nimbolide inhibits tumorigenesis and metastasis without any toxicity and unwanted side effects. Nimbolide exhibits anticancer activity through selective modulation of multiple cell signaling pathways linked to inflammation, survival, growth, invasion, angiogenesis and metastasis. The present review highlights the current knowledge on molecular targets that contribute to the observed anticancer activity of nimbolide related to (i) inhibition of carcinogenic activation and induction of antioxidant and carcinogen detoxification enzymes, (ii) induction of growth arrest and apoptosis; and (iii) suppression of proinflammatory signaling pathways related to cancer progression.
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Affiliation(s)
- Lakshmi Narendra Bodduluru
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati 781032, Assam, India.
| | - Eshvendar Reddy Kasala
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati 781032, Assam, India.
| | - Nagaraju Thota
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati 781032, Assam, India.
| | - Chandana C Barua
- Department of Pharmacology and Toxicology, College of Veterinary Science, Assam Agricultural University, Guwahati 781032, Assam, India.
| | - Ramakrishna Sistla
- Medicinal Chemistry & Pharmacology Division, Indian Institute of Chemical Technology (IICT), Hyderabad 500007, Andhra Pradesh, India.
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50
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Yuan X, Sun Q, Ou Y, Wang S, Zhang W, Deng H, Wu X, Zhang L. Apoptosis is an obstacle to the differentiation of adipose-derived stromal cells into astrocytes. Neural Regen Res 2014; 9:837-44. [PMID: 25206897 PMCID: PMC4146249 DOI: 10.4103/1673-5374.131600] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/28/2014] [Indexed: 01/17/2023] Open
Abstract
Previous studies have demonstrated that nerve cells differentiated from adipose-derived stromal cells after chemical induction have reduced viability; however, the underlying mechanisms remained unclear. In this study, we induced the differentiation of adult adipose-derived stromal cells into astrocytes using chemical induction. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay and flow cytometry showed that, with increasing induction time, the apoptotic rate gradually increased, and the number of living cells gradually decreased. Immunohistochemical staining demonstrated that the number of glial fibrillary acidic protein-, caspase-3- and caspase-9-positive cells gradually increased with increasing induction time. Transmission electron microscopy revealed typical signs of apoptosis after differentiation. Taken together, our results indicate that caspase-dependent apoptosis is an obstacle to the differentiation of adipose-derived stromal cells into astrocytes. Inhibiting apoptosis may be an important strategy for increasing the efficiency of induction.
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Affiliation(s)
- Xiaodong Yuan
- Department of Neurology, Kailuan General Hospital, Hebei United University, Tangshan, Hebei Province, China
| | - Qiaoyu Sun
- Department of Neurology, Kailuan General Hospital, Hebei United University, Tangshan, Hebei Province, China
| | - Ya Ou
- Department of Neurology, Kailuan General Hospital, Hebei United University, Tangshan, Hebei Province, China
| | - Shujuan Wang
- Department of Neurology, Kailuan General Hospital, Hebei United University, Tangshan, Hebei Province, China
| | - Wenli Zhang
- Department of Electron Microscopy, Hebei United University, Tangshan, Hebei Province, China
| | - Hongliang Deng
- Department of Neurology, Kailuan General Hospital, Hebei United University, Tangshan, Hebei Province, China
| | - Xiaoying Wu
- Department of Neurology, Kailuan General Hospital, Hebei United University, Tangshan, Hebei Province, China
| | - Lili Zhang
- Department of Neurology, Kailuan General Hospital, Hebei United University, Tangshan, Hebei Province, China
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