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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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Tewari D, Rawat K, Bisht A, Almoyad MAA, Wahab S, Chandra S, Pande V. Screening of potential inhibitors of Leishmania major N-myristoyltransferase from Azadirachta indica phytochemicals for leishmaniasis drug discovery by molecular docking, molecular dynamics simulation and density functional theory methods. J Biomol Struct Dyn 2023:1-18. [PMID: 37922151 DOI: 10.1080/07391102.2023.2279281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 10/30/2023] [Indexed: 11/05/2023]
Abstract
Leishmaniasis is one of the most neglected parasitic diseases worldwide. The toxicity of current drugs used for its treatment is a major obstacle to their effectiveness, necessitating the discovery and development of new therapeutic agents for better disease control. In Leishmania parasites, N-Myristoyltransferase (NMT) has been identified as a promising target for drug development. Thus, exploring well-known medicinal plants such as Azadirachta indica and their phytochemicals can offer a diverse range of treatment options, potentially leading to disease prevention and control. To assess the therapeutic potential of these compounds, their ADMET prediction and drug-likeness properties were analyzed. The top 4 compounds were selected which had better and significantly low binding energy than the reference molecule QMI. Based on the binding energy score of the top compounds, the results show that Isonimocinolide has the highest binding affinity (-9.8 kcal/mol). In addition, a 100 ns MD simulation of the four best compounds showed that Isonimocinolide and Nimbolide have good stability with LmNMT. These compounds were then subjected to MMPBSA (last 30 ns) calculation to analyze protein-ligand stability and dynamic behavior. Nimbolide and Meldenin showed lowest binding free energy i.e. -84.301 kJ/mol and -91.937 kJ/mol respectively. DFT was employed to calculate the HOMO-LUMO energy gap, global reactivity parameters, and molecular electrostatic potential of all hit molecules. The promising results obtained from MD simulations and MMPBSA analyses provide compelling evidence for the potential use of these compounds in future drug development efforts for the treatment of leishmaniasis.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Disha Tewari
- Department of Biotechnology, Kumaun University, Bhimtal, Uttarakhand, India
| | - Kalpana Rawat
- Computational Biology & Biotechnology Laboratory, Department of Botany, Soban Singh Jeena University, Almora, Uttarakhand, India
| | - Amisha Bisht
- Department of Botany, P.G. College Bageshwar, Soban Singh Jeena University, Almora, Uttarakhand, India
| | - Mohammad Ali Abdullah Almoyad
- Department of Basic Medical Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Khamis Mushyt, Saudi Arabia
| | - Shadma Wahab
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Subhash Chandra
- Computational Biology & Biotechnology Laboratory, Department of Botany, Soban Singh Jeena University, Almora, Uttarakhand, India
| | - Veena Pande
- Department of Biotechnology, Kumaun University, Bhimtal, Uttarakhand, India
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Biochemometry-Based Discovery of Phenylpropanoids from Azadirachta indica Fruits as Inhibitors of In Vitro Osteoclast Formation. Molecules 2022; 27:molecules27113611. [PMID: 35684547 PMCID: PMC9182001 DOI: 10.3390/molecules27113611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 05/24/2022] [Accepted: 06/01/2022] [Indexed: 12/04/2022] Open
Abstract
(1) Background: Inhibition of osteoclast differentiation is the key approach in treating osteoporosis. However, using state-of-the-art treatments such as bisphosphonates and estrogen-based therapy is usually accompanied by many side effects. As opposed to this, the use of natural products as an osteoporotic remedy delivers promising outcomes with minimal side effects. (2) Methods: In the present study, we implemented a biochemometric workflow comprising (i) chemometric approaches using NMR and mass spectrometry and (ii) cell biological approaches using an osteoclast cytochemical marker (TRAP). The workflow serves as a screening tool to pursue potential in vitro osteoclast inhibitors. (3) Results: The workflow allowed for the selective isolation of two phenylpropanoids (coniferyl alcohol and sinapyl alcohol) from the fruits of neem tree (Azadirachta indica). These two isolated phenylpropanoids showed a very promising dose-dependent inhibition of osteoclast differentiation with negligible effects in terms of cell viability. (4) Conclusion: The presented workflow is an effective tool in the discovery of potential candidates for osteoclast inhibition from complex extracts. The used biochemometric approach saves time, effort and costs while delivering precise hints to selectively isolate bioactive constituents.
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Saha Tchinda J, Mbitnkeu Fetngna Tchebe T, Abdou Tchoukoua, Cheumani Yona AM, Fauconnier ML, Ndikontar Kor M, Richel A. Fatty acid profiles, antioxidant, and phenolic contents of oils extracted from
Acacia polyacantha
and
Azadirachta indica
(Neem) seeds using green solvents. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Jean‐Bosco Saha Tchinda
- Macromolecular Chemistry Unit Applied Chemistry Laboratory Faculty of Science University of Yaoundé I Yaoundé Cameroon
| | | | - Abdou Tchoukoua
- Department of Chemistry, Faculty of Science University of Maroua Maroua Cameroon
| | - Arnaud Maxime Cheumani Yona
- Macromolecular Chemistry Unit Applied Chemistry Laboratory Faculty of Science University of Yaoundé I Yaoundé Cameroon
| | - Marie Laure Fauconnier
- Laboratory of Chemistry of Natural Molecules Gembloux Agro Bio TechUniversité de Liege Gembloux Belgium
| | - Maurice Ndikontar Kor
- Macromolecular Chemistry Unit Applied Chemistry Laboratory Faculty of Science University of Yaoundé I Yaoundé Cameroon
| | - Aurore Richel
- Laboratory of Biomass and Green Technologies Université de Liège ‐ Gembloux Agro‐Bio Tech Gembloux Belgium
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Gopinath H, Karthikeyan K. Neem in dermatology: Shedding light on the traditional panacea. Indian J Dermatol 2021; 66:706. [PMID: 35283494 PMCID: PMC8906293 DOI: 10.4103/ijd.ijd_562_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Braga TM, Rocha L, Chung TY, Oliveira RF, Pinho C, Oliveira AI, Morgado J, Cruz A. Biological Activities of Gedunin-A Limonoid from the Meliaceae Family. Molecules 2020; 25:E493. [PMID: 31979346 PMCID: PMC7037920 DOI: 10.3390/molecules25030493] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/16/2020] [Accepted: 01/20/2020] [Indexed: 12/12/2022] Open
Abstract
Gedunin is an important limonoid present in several genera of the Meliaceae family, mainly in seeds. Several biological activities have been attributed to gedunin, including antibacterial, insecticidal, antimalarial, antiallergic, anti-inflammatory, anticancer, and neuroprotective effects. The discovery of gedunin as a heat shock protein (Hsp) inhibitor represented a very important landmark for its application as a biological therapeutic agent. The current study is a critical literature review based on the several biological activities so far described for gedunin, its therapeutic effect on some human diseases, and future directions of research for this natural compound.
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Affiliation(s)
- Teresa M. Braga
- Centro de Investigação em Saúde e Ambiente, Escola Superior de Saúde, Instituto Politécnico do Porto, 4200-072 Porto, Portugal; (L.R.); (T.Y.C.); (R.F.O.); (C.P.); (A.I.O.)
| | - Lídia Rocha
- Centro de Investigação em Saúde e Ambiente, Escola Superior de Saúde, Instituto Politécnico do Porto, 4200-072 Porto, Portugal; (L.R.); (T.Y.C.); (R.F.O.); (C.P.); (A.I.O.)
| | - Tsz Yan Chung
- Centro de Investigação em Saúde e Ambiente, Escola Superior de Saúde, Instituto Politécnico do Porto, 4200-072 Porto, Portugal; (L.R.); (T.Y.C.); (R.F.O.); (C.P.); (A.I.O.)
| | - Rita F. Oliveira
- Centro de Investigação em Saúde e Ambiente, Escola Superior de Saúde, Instituto Politécnico do Porto, 4200-072 Porto, Portugal; (L.R.); (T.Y.C.); (R.F.O.); (C.P.); (A.I.O.)
| | - Cláudia Pinho
- Centro de Investigação em Saúde e Ambiente, Escola Superior de Saúde, Instituto Politécnico do Porto, 4200-072 Porto, Portugal; (L.R.); (T.Y.C.); (R.F.O.); (C.P.); (A.I.O.)
| | - Ana I. Oliveira
- Centro de Investigação em Saúde e Ambiente, Escola Superior de Saúde, Instituto Politécnico do Porto, 4200-072 Porto, Portugal; (L.R.); (T.Y.C.); (R.F.O.); (C.P.); (A.I.O.)
| | - Joaquim Morgado
- Bio4Life4You, 4460-170 Porto, Portugal;
- World Neem Organization, Mumbai 400101, India
| | - Agostinho Cruz
- Centro de Investigação em Saúde e Ambiente, Escola Superior de Saúde, Instituto Politécnico do Porto, 4200-072 Porto, Portugal; (L.R.); (T.Y.C.); (R.F.O.); (C.P.); (A.I.O.)
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Simhadri Vsdna N, Muniappan M, Kannan I, Viswanathan S. Phytochemical analysis and docking study of compounds present in a polyherbal preparation used in the treatment of dermatophytosis. Curr Med Mycol 2017; 3:6-14. [PMID: 29707673 PMCID: PMC5917095 DOI: 10.29252/cmm.3.4.6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Background and Purpose Soleshine is a polyherbal preparation established in the market for the treatment of cracks and tinea pedis, which is applied externally. This preparation is composed of the extracts of indigenous plants, namely Azadirachta indica, Lawsonia alba, and Shorea robusta, mixed with castor oil and sesame oil. In the present study, an attempt was made to identify the constituents of soleshine and identify some potential drug-like molecules that can inhibit important drug targets of the dermatophytes using molecular docking method. Materials and Methods The active ingredients of polyherbal preparation were identified with the aid of gas chromatography-mass spectrometry (GC-MS). Two major compounds were selected based on the retention time and percentage of the area covered in the graph for docking study. The three-dimensional structures of 1,3-β-glucan synthase, chitinase, fungalysin, and lumazine synthase were derived by homology modelling using MODELLER software, version 9.0. The docking of the ligand and receptor was performed using iGEMDOCK and AutodockVina software. The physicochemical properties, lipophilicity, hydrophilicity, and drug likeness properties were obtained from the Swiss ADME online server tool. Results The GC-MS analysis demonstrated the presence of different phytochemical compounds in the extract of polyherbal preparation. A total of 20 compounds were identified, among which 3,7-dimethyl-2,6-octadienaland 2-pentene-2-methyl were the major compounds. Regarding 3,7-dimethyl-2,6-octadienal, the covered area and height were 40.15% and 46.17%, respectively. These values were 31.90% and 23.33% for 2-pentene-2-methyl, respectively. These two major compounds had an excellent binding affinity and obeyed the rules for the drug likeness and lead likeness. Conclusion As the findings indicated, the two major ingredients present in soleshine showed a good antifungal activity as they inhibited the enzymes responsible for the survival of fungal organism; furthermore, they were appropriate for the lead molecules.
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Affiliation(s)
| | - Muthuchamy Muniappan
- Department of Pharmacology, Sree Balaji Medical College and Hospital, Chennai, India
| | - Iyanar Kannan
- Department of Microbiology, Tagore Medical College and Hospital, Chennai, India
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9
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Yadav DK, Bharitkar YP, Hazra A, Pal U, Verma S, Jana S, Singh UP, Maiti NC, Mondal NB, Swarnakar S. Tamarixetin 3-O-β-d-Glucopyranoside from Azadirachta indica Leaves: Gastroprotective Role through Inhibition of Matrix Metalloproteinase-9 Activity in Mice. JOURNAL OF NATURAL PRODUCTS 2017; 80:1347-1353. [PMID: 28493718 DOI: 10.1021/acs.jnatprod.6b00957] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Neem (Azadirachta indica) is a well-known medicinal and insecticidal plant. Although previous studies have reported the antiulcer activity of neem leaf extract, the lead compound is still unidentified. The present study reports tamarixetin 3-O-β-d-glucopyranoside (1) from a methanol extract of neem leaves and its gastroprotective activity in an animal model. Compound 1 showed significant protection against indomethacin-induced gastric ulceration in mice in a dose-dependent manner. Moreover, ex vivo and circular dichroism studies confirmed that 1 inhibited the enzyme matrix metalloproteinase-9 (MMP-9) activity with an IC50 value of ca. 50 μM. Molecular docking and dynamics showed the binding of 1 into the pocket of the active site of MMP-9, forming a coordination complex with the catalytic zinc, thus leading to inhibition of MMP-9 activity.
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Affiliation(s)
| | - Yogesh P Bharitkar
- Department of Natural Products, National Institute of Pharmaceutical Education and Research , Kolkata 700032, WB, India
| | - Abhijit Hazra
- Department of Natural Products, National Institute of Pharmaceutical Education and Research , Kolkata 700032, WB, India
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10
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Ash A, Bharitkar YP, Murmu S, Hazra A, Ravichandiran V, Kar PK, Mondal NB. Ultrastructural changes in Raillietina (Platyhelminthes: cestoda), exposed to sulfonoquinovosyldiacylglyceride (SQDG), isolated from Neem (Azadirachta indica). Nat Prod Res 2017; 31:2445-2449. [PMID: 28347172 DOI: 10.1080/14786419.2017.1305383] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Neem (Azadirachta indica), has been known to be a curative for various ailments and diseases in the traditional Indian medicinal system from times immemorial. A glycolipid sulfonoquinovosyldiacylglyceride (SQDG) isolated from the leaves of neem has been found to be a proactive antibacterial and antiviral agent in previous studies. The current communication pertains to the anthelmintic activity of SQDG in vitro against a model cestode Raillietina spp. The results of efficacy tests showed a paralysis time of 1.0 ± 0.1 and 0.7 ± 0.01 h, whereas death time of 1.6 ± 0.3 and 0.9 ± 0.02 h, following treatments with dosages of 0.5 and 1.0 mg/mL, respectively. The scanning electron microscopic studies showed significant and unique changes in the ultrastructure of the worms with prominent breakages and furrows on the surface.
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Affiliation(s)
- Anirban Ash
- a Department of Chemistry, Council of Scientific and Industrial Research , CSIR-Indian Institute of Chemical Biology , Jadavpur , India
| | - Yogesh P Bharitkar
- b Department of Natural Products , National Institute of Pharmaceutical Education and Research (NIPER) , Jadavpur , India
| | - Sanatan Murmu
- c Department of Zoology , Jhargram Raj College , Jhargram , India
| | - Abhijit Hazra
- b Department of Natural Products , National Institute of Pharmaceutical Education and Research (NIPER) , Jadavpur , India
| | - V Ravichandiran
- b Department of Natural Products , National Institute of Pharmaceutical Education and Research (NIPER) , Jadavpur , India
| | - Pradip Kumar Kar
- c Department of Zoology , Jhargram Raj College , Jhargram , India
| | - Nirup Bikash Mondal
- a Department of Chemistry, Council of Scientific and Industrial Research , CSIR-Indian Institute of Chemical Biology , Jadavpur , India
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11
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Bhajoni PS, Meshram GG, Lahkar M. Evaluation of the Antiulcer Activity of the Leaves of Azadirachta indica: An Experimental Study. ACTA ACUST UNITED AC 2016. [DOI: 10.1159/000442750] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Wu Q, Kohli M, Bergen HR, Cheville JC, Karnes RJ, Cao H, Young CYF, Tindall DJ, McNiven MA, Donkena KV. Preclinical evaluation of the supercritical extract of azadirachta indica (neem) leaves in vitro and in vivo on inhibition of prostate cancer tumor growth. Mol Cancer Ther 2014; 13:1067-77. [PMID: 24674886 DOI: 10.1158/1535-7163.mct-13-0699] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Azadirachta indica, commonly known as neem, has gained worldwide prominence because of its medical properties, namely antitumor, antiviral, anti-inflammatory, antihyperglycemic, antifungal, and antibacterial activities. Despite these promising results, gaps remain in our understanding of the molecular mechanism of action of neem compounds and their potential for use in clinical trials. We investigated supercritical extract of neem leaves (SENL) for the following: molecular targets in vitro, in vivo efficacy to inhibit tumor growth, and bioactive compounds that exert antitumor activity. Treatment of LNCaP-luc2 prostate cancer cells with SENL suppressed dihydrotestosterone-induced androgen receptor and prostate-specific antigen levels. SENL inhibited integrin β1, calreticulin, and focal adhesion kinase activation in LNCaP-luc2 and PC3 prostate cancer cells. Oral administration of SENL significantly reduced LNCaP-luc2 xenograft tumor growth in mice with the formation of hyalinized fibrous tumor tissue, reduction in the prostate-specific antigen, and increase in AKR1C2 levels. To identify the active anticancer compounds, we fractionated SENL by high-pressure liquid chromatography and evaluated 16 peaks for cytotoxic activity. Four of the 16 peaks exhibited significant cytotoxic activity against prostate cancer cells. Mass spectrometry of the isolated peaks suggested the compounds with cytotoxic activity were nimbandiol, nimbolide, 2',3'-dihydronimbolide, and 28-deoxonimbolide. Analysis of tumor tissue and plasma samples from mice treated with SENL indicated 28-deoxonimbolide and nimbolide as the bioactive compounds. Overall, our data revealed the bioactive compounds in SENL and suggested that the anticancer activity could be mediated through alteration in androgen receptor and calreticulin levels in prostate cancer.
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Affiliation(s)
- Qiang Wu
- Authors' Affiliations: Departments of Urology, Oncology, and Biochemistry and Molecular Biology; and Division of Anatomic Pathology, Mayo Clinic, Rochester, Minnesota
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13
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Koriem KMM. Review on pharmacological and toxicologyical effects of oleum azadirachti oil. Asian Pac J Trop Biomed 2013; 3:834-40. [PMID: 24075352 PMCID: PMC3761146 DOI: 10.1016/s2221-1691(13)60165-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2013] [Revised: 06/22/2013] [Accepted: 10/12/2013] [Indexed: 10/26/2022] Open
Abstract
Oleum azadirachti consists of the oil obtained from dried seeds of Azadirachta indica A. Juss. (family: Meliaceae). Local names of Azadirachta indica A. Juss. are Abodua, aforo-oyinbo, anwe egyane, arista, azad dirakht, azadarakht, azedarach and bead tree. Indigenous to India, and widely distributed in South and South-East Asia and cultivated in Africa, the South Pacific Islands, South and Central America and Australia, and in southern Florida and California, United States of America, it is a straight-boled deciduous tree, which is 6-25 m high. Bark is dark-brown, externally fissured with a buff inner surface and fibrous fracture. Leaves alternately arranged, pinnately compound and up to 40 cm long, and composed of 8-18 short-petiolate narrow-ovate, pointed and curved toothed leaflets, 3-10 cm long and 1-4 cm wide arranged in alternate pairs. The major constituents are oxidized tetranortriterpenes including azadirachtin (azadirachtin A), azadiriadione, epoxyazadiradione, azadirone, nimbidin, nimbin, deacetylnimbin, salannin, gedunin, mahmoodin, 17-hydroxydiradione and related derivatives. It is of various medicinal uses, such as a contraceptive for intravaginal use, a mosquito repellent, and treatment of vaginal infections, treatment of gastric ulcers, cardiovascular disease, malaria, rheumatism and skin disorders, external applications for treatment of septic wounds, ulcers and boils, treatment of allergic skin reactions, asthma, bruises, colic, conjunctivitis, dysmenorrhoea, fever, gout, headache, itching due to varicella, kidney stones, leukorrhoea, psoriasis, scabies, sprains and muscular pain, and wounds. It is also used as an emmenagogue, tonic, stomatic and vermicide. In conclusion, the plant oil had antifertility, antihyperglycaemic, anti-inflammatory, antimicrobial, antiviral, antiulcer, estrogenic, immune, contraceptive, antibacterial, insect repellent, and skin treatment effects.
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Affiliation(s)
- Khaled M M Koriem
- Medical Physiology Department, National Research Centre, Dokki, Giza, Egypt; Advanced Medical and Dental Institute (AMDI), Universiti Sains Malaysia (USM), Malaysia.
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Akihisa T, Takahashi A, Kikuchi T, Takagi M, Watanabe K, Fukatsu M, Fujita Y, Banno N, Tokuda H, Yasukawa K. The melanogenesis-inhibitory, anti-inflammatory, and chemopreventive effects of limonoids in n-hexane extract of Azadirachta indica A. Juss. (neem) seeds. J Oleo Sci 2011; 60:53-9. [PMID: 21263200 DOI: 10.5650/jos.60.53] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Seventeen limonoids (tetranortriterpenoids 1-17) were isolated from the n-hexane extract of Azadirachta indica (neem) seeds. The previously unidentified compound 16 was established by spectroscopy to be 17-defurano-17-oxosalannin. The effects of six compounds, 6 and 11-15, on melanogenesis in B16 melanoma cells was evaluated; 2 compounds, salannin (13) and 3-deacetylsalannin (15), exhibited marked inhibitory effects (70-74% reduction of melanin content at 25 µg/mL) with only minor cytotoxicity (79-85% of cell viability). Eleven compounds, 2, 3, 5, 6, and 9-15, were evaluated for inhibitory activity against 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced inflammation (1.7 nmol/ear) in mice; all exhibited marked anti-inflammatory activity (ID(50) values 0.22-0.57 µmol/ear). In addition, compounds 6 and 11-16 exerted moderate inhibition (IC(50) values of 410-471 mol ratio/32 pmol TPA) of TPA-induced Epstein-Barr virus early antigen (EBV-EA) activation in Raji cells. The triacylglycerol fraction of the n-hexane extract contained oleic acid (50.2%) as the most predominant fatty acid constituent.
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Sang YS, Zhou CY, Lu AJ, Yin XJ, Min ZD, Tan RX. Protolimonoids from Melia toosendan. JOURNAL OF NATURAL PRODUCTS 2009; 72:917-920. [PMID: 19341288 DOI: 10.1021/np800669c] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Toosendanone A (1), a new euphane (tirucallane)-type triterpene bearing a five-membered ring in the side chain and the first cyclopentanyl protolimonoid, was isolated from the bark of Melia toosendan, along with two new tirucallanes, toosendanic acids A (2) and B (3). The structure and absolute configuration of compound 1 was elucidated by spectroscopic data interpretation and X-ray diffraction analysis. Compounds 1-3 were evaluated for cytotoxicity against a small panel of cancer cell lines.
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Affiliation(s)
- Yi Shu Sang
- Laboratory of Natural Products, Jiangsu Simcere Pharmaceutical R&D Company, Ltd, 699-18 Xuanwu Road, Xuanwu District, Nanjing 210042, People's Republic of China
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16
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Three novel tetracyclic triterpenoids of biogenetic interest from the leaves of Azadirachta indica. Tetrahedron 2001. [DOI: 10.1016/s0040-4020(01)01027-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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