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Üremiş MM, Üremiş N, Türköz Y. Cucurbitacin E shows synergistic effect with sorafenib by inducing apoptosis in hepatocellular carcinoma cells and regulates Jak/Stat3, ERK/MAPK, PI3K/Akt/mTOR signaling pathways. Steroids 2023; 198:109261. [PMID: 37355001 DOI: 10.1016/j.steroids.2023.109261] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/16/2023] [Accepted: 06/16/2023] [Indexed: 06/26/2023]
Abstract
OBJECTIVE Cucurbitacin E (CuE), a natural compound found in medicinal plants such as Ecballium Elaterium, has demonstrated antiproliferative and apoptotic effects in various cancer cell types due to its tetracyclic triterpenoid structure. Sorafenib, a multi-tyrosine kinase inhibitor, is commonly used in hepatocellular carcinoma (HCC) treatment. This study aimed to investigate the anticancer effect of CuE alone and in combination with sorafenib on HepG2 cells. METHODS CuE was extracted from Ecballium Elaterium fruit juice and quantitatively evaluated using HPLC. The effect of sorafenib and CuE on cell growth inhibition was determined using the MTT test. Cell cycle progression and apoptosis were assessed using flow cytometry. Mitochondrial damage was evaluated with ΔΨm, and DNA damage was assessed using the comet assay. The expression of Jak2/Stat3, PI3K/Akt/mTOR, MAPK, and Bcl-2 family-related genes and proteins were analyzed using western blot and qRT-PCR, respectively. RESULTS Both CuE (0.1-5 µM) and sorafenib (0.5-10 µM) exhibited dose- and time-dependent antiproliferative and cytotoxic effects against the HepG2 cell line. Both compounds induced apoptosis in HepG2 cells and halted the cell cycle in the G2/M phase while causing mitochondrial and DNA damage. Both compounds down-regulated Jak2/Stat3, PI3K/Akt/mTOR, MAPK signaling pathway proteins, and Bcl-xL levels, while up-regulated Caspase-9 and Bax protein levels. CONCLUSION Based on the results of this study, it can be concluded that CuE alone or in combination with sorafenib has the potential to be an effective therapeutic option for the treatment of HCC by inducing apoptosis and regulating multiple signaling pathways.
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Affiliation(s)
- Muhammed Mehdi Üremiş
- Department of Medical Biochemistry, Faculty of Medicine, Inonu University, Malatya, Turkey.
| | - Nuray Üremiş
- Department of Medical Biochemistry, Faculty of Medicine, Inonu University, Malatya, Turkey
| | - Yusuf Türköz
- Department of Medical Biochemistry, Faculty of Medicine, Inonu University, Malatya, Turkey
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Nakashima S, Oda Y, Morita M, Ohta A, Morikawa T, Matsuda H, Nakamura S. Analysis of Active Compounds Using Target Protein Cofilin―Cucurbitacins in Cytotoxic Plant Bryonia cretica. Toxins (Basel) 2022; 14:toxins14030212. [PMID: 35324709 PMCID: PMC8955846 DOI: 10.3390/toxins14030212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/14/2022] [Accepted: 03/14/2022] [Indexed: 02/04/2023] Open
Abstract
We examined a two-step target protein binding strategy that uses cofilin as the target protein to analyze the active constituents in Bryonia cretica. In the first step, we prepared the target protein, and used it to analyze the compounds binding to it in the second step. We used the methanolic extract of B. cretica as a library of possible active compounds. We conducted LC–MS analysis using information from our previous study. The peaks in the HPLC profile were identified as cucurbitacin D, isocucurbitacin D, and cucurbitacin I. As far as we know, there is no known study of the activity of isocucurbitacin D in this research field. Therefore, we examined the effects of isocucurbitacin D on cell proliferation and cofilin protein in human fibrosarcoma cell line HT1080 to confirm the effectiveness of this strategy. The cytotoxicity assay, the fibrous/globular actin ratio assay, and the immunoblotting analysis revealed that isocucurbitacin D showed a cytotoxic effect with disruption of target protein cofilin. The target protein binding strategy is a direct and straightforward method for finding new drug seeds from crude sources, such as natural plant extracts.
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Affiliation(s)
- Souichi Nakashima
- Department of Pharmacognosy, Kyoto Pharmaceutical University, Kyoto 607-8412, Japan; (Y.O.); (M.M.); (A.O.); (H.M.); (S.N.)
- NPR Medical Resource Laboratory, Kyoto 604-0924, Japan
- Pharmaceutical Research and Technology Institute, Kindai University, Osaka 577-8502, Japan;
- Correspondence:
| | - Yoshimi Oda
- Department of Pharmacognosy, Kyoto Pharmaceutical University, Kyoto 607-8412, Japan; (Y.O.); (M.M.); (A.O.); (H.M.); (S.N.)
| | - Moeko Morita
- Department of Pharmacognosy, Kyoto Pharmaceutical University, Kyoto 607-8412, Japan; (Y.O.); (M.M.); (A.O.); (H.M.); (S.N.)
| | - Ayako Ohta
- Department of Pharmacognosy, Kyoto Pharmaceutical University, Kyoto 607-8412, Japan; (Y.O.); (M.M.); (A.O.); (H.M.); (S.N.)
| | - Toshio Morikawa
- Pharmaceutical Research and Technology Institute, Kindai University, Osaka 577-8502, Japan;
| | - Hisashi Matsuda
- Department of Pharmacognosy, Kyoto Pharmaceutical University, Kyoto 607-8412, Japan; (Y.O.); (M.M.); (A.O.); (H.M.); (S.N.)
- NPR Medical Resource Laboratory, Kyoto 604-0924, Japan
- Pharmaceutical Research and Technology Institute, Kindai University, Osaka 577-8502, Japan;
| | - Seikou Nakamura
- Department of Pharmacognosy, Kyoto Pharmaceutical University, Kyoto 607-8412, Japan; (Y.O.); (M.M.); (A.O.); (H.M.); (S.N.)
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Uushona NE, Dziwornu GA, Mkwanazi N, Kaschula CH, Sunassee SN, de Villiers A. New dihydroxycucurbitacin D's from the Namib desert endemic plant Acanthosicyos horridus (!nara). Fitoterapia 2021; 155:105041. [PMID: 34592371 DOI: 10.1016/j.fitote.2021.105041] [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: 07/08/2021] [Revised: 09/16/2021] [Accepted: 09/23/2021] [Indexed: 10/20/2022]
Abstract
Acanthosicyos horridus Welw. ex Hook.f. (!nara) is a leafless, thorny, melon-producing plant endemic to the hyper-arid Namib Desert. The methanol crude extract prepared from the ripe fruits of !nara afforded the known dihydroxycucurbitacin 7β-hydroxy-23,24-dihydrocucurbitacin D (1), along with four new congeners 7β,15β-dihydroxy-23,24-dihydrocucurbitacin D (2), 25-O-β-glucopyranosyl-7β-hydroxy-23,24-dihydrocucurbitacin D (3), 25-O-β-glucopyranosyl-7β-hydroxy-23,24-dihydroisocucurbitacin D (4) and 25-O-β-glucopyranosyl-7β-hydroxy-23,24-dihydro-3-epi-isocucurbitacin D (5). These compounds were isolated through a combination of preparative normal phase thin-layer chromatography (TLC) and semi-preparative reversed phase high performance liquid chromatography (HPLC). Their structures were established by comprehensive analysis of HR-ESI-MS data, 1D and 2D NMR spectroscopic data and by comparison with literature values of similar cucurbitacins. The five isolated compounds exhibited poor cytotoxic activity against the MDA-MB-231 breast cancer cell line. To the best of our knowledge, this is the first report of glycosylated cucurbitacins in Acanthosicyos horridus.
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Affiliation(s)
- Nashipolo E Uushona
- Stellenbosch University, Department of Chemistry and Polymer Science, Private Bag X1, Matieland 7602, South Africa
| | - Godwin A Dziwornu
- Department of Chemistry, University of Cape Town, Rondebosch 7700, South Africa
| | - Nonkululeko Mkwanazi
- Stellenbosch University, Department of Chemistry and Polymer Science, Private Bag X1, Matieland 7602, South Africa
| | - Catherine H Kaschula
- Stellenbosch University, Department of Chemistry and Polymer Science, Private Bag X1, Matieland 7602, South Africa
| | | | - André de Villiers
- Stellenbosch University, Department of Chemistry and Polymer Science, Private Bag X1, Matieland 7602, South Africa.
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Galma W, Endale M, Getaneh E, Eswaramoorthy R, Assefa T, Melaku Y. Antibacterial and antioxidant activities of extracts and isolated compounds from the roots extract of Cucumis prophetarum and in silico study on DNA gyrase and human peroxiredoxin 5. BMC Chem 2021; 15:32. [PMID: 33957962 PMCID: PMC8103605 DOI: 10.1186/s13065-021-00758-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 04/26/2021] [Indexed: 12/03/2022] Open
Abstract
Background Cucumis prophetarum is traditionally used to treat liver and lung disorders, heart failure, diarrhea, gonorrhea, skin infections, intestinal problems and cancer. In the present work, the isolation of two novel compounds along with their antibacterial and antioxidant activities is reported for the first time. Methods Silica gel column chromatography was applied to separate constituents of the roots of C. prophetarum. The structures of isolated compounds were established using 1H NMR, 13C NMR, DEPT-135, COSY, HSQC and HMBC. Agar well diffusion, DPPH assay and ferric thiocyante methods were used for antibacterial, radical scavenging and anti-lipid peroxidation activities, respectively. AutoDock Vina open source program was used for molecular docking analysis. Results Evaluation of the in vitro antibacterial activity of the constituents against S. aureus, B. subtilis, E. coli and S. thyphimurium revealed that the hexane extract were active against E. coli with IZ of 15.0 ± 1.41 mm, whereas an IZ of 14.6 ± 1.70 mm for MeOH extract was observed against S. aureus. Compound 1 displayed IZ of 13.6 ± 0.94 mm against E. coli and curcurbiatin 2 showed activity against B. subtilis with IZ of 13.3 ± 0.54 mm. The molecular docking analysis showed that cucurbitacins 2 and 3 have binding energy of -6.7 and -6.9 kcal/mol, respectively. The methanol and the hexane extracts of the roots of C. prophetarum inhibited DPPH radical by 70.4 and 63.3% at 100 µg/mL, respectively. On the other hand, the methanol extract inhibited lipid peroxidation by 53.0%. Conclusion The present study identified five compounds from the root extracts of C. prophetarum, of which two are novel cucurbitacins (1, 2). The in vitro antibacterial activity of the hexane and methanol extracts was better than the activity displayed by the isolated compounds. This is probably due to the synergistic effects of the constituents present in the root extract. The in silico molecular docking study results showed that, compounds 2 and 3 have minimum binding energy and have good affinity toward the active pocket, thus, they may be considered as good inhibitor of DNA gyrase B. Furthermore, the “drug-likeness” and ADMET prediction of compounds 2–5 nearly showed compliance with the Lipinski rule, with good absorption, distribution, metabolism, and excretion generally. The radical scavenging and anti-lipid peroxidation activities of the extracts were better than the isolated compounds. This is attributed to the presence of phenolics and flavonoids as minor constituents in the extracts of these species. Therefore, the in vitro antibacterial activity and molecular docking analysis suggest the potential use of the isolated compounds as medicine which corroborates the traditional use of the roots of C. prophetarum. Supplementary Information The online version contains supplementary material available at 10.1186/s13065-021-00758-x.
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Affiliation(s)
- Wario Galma
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O.Box 1888, Adama, Ethiopia
| | - Milkyas Endale
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O.Box 1888, Adama, Ethiopia
| | - Emebet Getaneh
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O.Box 1888, Adama, Ethiopia
| | - Rajalakshmanan Eswaramoorthy
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O.Box 1888, Adama, Ethiopia
| | - Temesgen Assefa
- Department of Biotechnology, College of Natural and Computational Science, Debre Birhan University, P.O. Box 445, Debre Birhan, Ethiopia
| | - Yadessa Melaku
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O.Box 1888, Adama, Ethiopia.
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Aljohani OS. Phytochemical evaluation of Cucumis prophetarum: protective effects against carrageenan-induced prostatitis in rats. Drug Chem Toxicol 2020; 45:1461-1469. [PMID: 33092416 DOI: 10.1080/01480545.2020.1838538] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Phytochemical study of the MeOH extract of Cucumis prophetarum fruits (family Cucurbitaceae) by using different chromatographic techniques led to the isolation of three metabolites; spinasterol (1), cucurbitacin B (2), and 2-O-β-D-glucopyranosylcucurbitacin E (3). Their chemical structures were created on the basis of physical, chemical, spectroscopic data 1D (1H and 13C NMR), and 2D NMR (HSQC and HMBC), as well as similarity with literature data. Cucurbitacin B (Cu-B) (2) was found to be the major constituent. Potential protective activities of MeOH extract, CHCl3, and EtOAc fractions and Cu-B were evaluated against carrageenan-induced prostatic inflammation in rats. Acute toxicity was assessed by evaluating LD50. Pretreatment with CHCl3 fraction and Cu-B ameliorated the rise in the prostate index and obviously protected against histopathological changes. Further, MeOH, extract, CHCl3, and EtOAc fractions as well as Cu-B significantly protected against oxidative stress in prostatic tissues. The anti-inflammatory activities of the extract, fractions and Cu-B were confirmed by ameliorating the rise in prostatic content of the inflammatory mediators TNF-α, IL-1β, COX-2, and iNOS induced by carrageenan. In addition, the rise in the chemotactic factors were myeloperoxidase (MPO), F4-80, and monocyte chemoattractant protein-1 (MCP-1) was significantly hampered. In conclusion, three known compounds (1-3) were isolated from Cucumis prophetarum fruits. Cu-B (2) was the major identified compound. Particularly, CHCl3 fraction and isolated Cu-B exhibited potent anti-inflammatory activity against carrageenan-induced prostatitis. The anti-inflammatory activity can be attributed, at least partly, to inhibition of neutrophil and macrophage infiltration into prostatic tissues.
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Affiliation(s)
- Omar Saad Aljohani
- Faculty of Pharmacy, Department of Natural Products and Alternative Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
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Suebsakwong P, Chulrik W, Chunglok W, Li JX, Yao ZJ, Suksamrarn A. New triterpenoid saponin glycosides from the fruit fibers ofTrichosanthes cucumerinaL. RSC Adv 2020; 10:10461-10470. [PMID: 35492927 PMCID: PMC9050392 DOI: 10.1039/d0ra01176b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 03/03/2020] [Indexed: 11/21/2022] Open
Abstract
Five new triterpenoid saponin glycosides, trichocucumerisides A–E (1–5), together with eleven known compounds (6–16) were isolated from Trichosanthes cucumerina fruit fibers. The structures of the new compounds were elucidated by detailed analysis of NMR and mass spectroscopic data as well as chemical reactions. The anti-inflammatory study against nitric oxide (NO) production in lipopolysaccharide (LPS)-stimulated RAW264.7 cells shows that compounds 7 and 9 exhibited stronger NO inhibitory activity, with IC50 values of 3.0 and 2.7 μM, respectively, with comparison to positive references Celecoxib and aminoguanidine (IC50 values 75.7 and 75.0 μM, respectively). Compounds 7 and 9 also possessed a greater selectivity index (SI) of approximately 3–4-fold activity than that of the positive references. The new glycosides 1–5, together with eleven known compounds were isolated. Two compounds exhibited more potent anti-inflammatory activity than Celecoxib and aminoguanidine reference compounds.![]()
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Affiliation(s)
- Parichat Suebsakwong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Ramkhamhaeng University
- Bangkok 10240
- Thailand
| | - Wanatsanan Chulrik
- School of Allied Health Sciences and Research Institute for Health Sciences
- Walailak University
- Nakhon Si Thammarat 80161
- Thailand
| | - Warangkana Chunglok
- School of Allied Health Sciences and Research Institute for Health Sciences
- Walailak University
- Nakhon Si Thammarat 80161
- Thailand
| | - Jian-Xin Li
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Zhu-Jun Yao
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Apichart Suksamrarn
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Ramkhamhaeng University
- Bangkok 10240
- Thailand
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Alsayari A, Kopel L, Ahmed MS, Soliman HSM, Annadurai S, Halaweish FT. Isolation of anticancer constituents from Cucumis prophetarum var. prophetarum through bioassay-guided fractionation. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 18:274. [PMID: 30301463 PMCID: PMC6178269 DOI: 10.1186/s12906-018-2295-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Accepted: 07/23/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Cucumis prophetarum var. prophetarum is used in Saudi folk medicine for treating liver disorders and grows widely between Abha and Khamis Mushait City, Saudi Arabia. METHODS Bioassay-guided fractionation and purification were used to isolate the main active constituents of Cucumis prophetarum var. prophetarum fruits. These compounds were structurally elucidated using NMR spectroscopy, mass spectral analyses and x-ray crystallography. All fractions, sub-fractions and pure compounds were screened for their anticancer activity against six cancer cell lines. RESULTS The greatest cytotoxic activity was found to be in the ethyl acetate fraction, resulting in the isolation of five cucurbitacin compounds [E, B, D, F-25 acetate and Hexanorcucurbitacin D]. Among the cucurbitacins that were isolated and tested cucurbitacin B and E showed potent cytotoxicity activities against all six human cancer cell lines. CONCLUSION Human breast cancer cell lines were found to be the most sensitive to cucurbitacins. Preliminary structure activity relationship (SAR) for cytotoxic activity of Cucurbitacins against human breast cancer cell line MDA-MB-231 has been reported.
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Affiliation(s)
- Abdulrhman Alsayari
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Lucas Kopel
- Kalexsyn, 4502 Campus Drive, Kalamazoo, MI 49008 USA
| | - Mahmoud Salama Ahmed
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The British University in Egypt, Al-Sherouk City, Cairo Egypt
| | | | - Sivakumar Annadurai
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Fathi T. Halaweish
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD 57007 USA
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Alsayari A, Almghaslah D, Khaled A, Annadurai S, Alkhairy MA, Alqahtani HA, Alsayed BA, Alasiri RM, Assiri AM. Community Pharmacists' Knowledge, Attitudes, and Practice of Herbal Medicines in Asir Region, Kingdom of Saudi Arabia. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2018; 2018:1568139. [PMID: 30228824 PMCID: PMC6136488 DOI: 10.1155/2018/1568139] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 07/06/2018] [Accepted: 07/31/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND A dramatic increase in the use of natural products and herbal medicines has been observed globally. Simultaneously, there has been an increase in safety concerns regarding the extensive use of these herbal remedies among health care practitioners. The urban and rural populations of Saudi Arabia still rely on traditional Arabic herbal medicines for the treatment of various diseases. OBJECTIVES This study aimed to evaluate community pharmacists' knowledge, attitudes, and practices of herbal medicines in the Asir region, Saudi Arabia. METHODS An online cross-sectional study was conducted among 233 community pharmacists using a structured questionnaire. RESULTS Pharmacists showed considerable knowledge of the indications of herbal products, with an average score of 84% correct answers, total P value < 0.05 and < 0.001. They were also knowledgeable about contraindications, side effects, and interactions, with an average score of 75% correct answers, total P value < 0.05 and < 0.001. Community pharmacists had a positive attitude towards herbal products, as 71% of them "agreed" or "strongly agreed" that herbal products were efficacious and 77% of them "agreed" or "strongly agreed" that those products should be sold only in a pharmacy. Herbal products were "often" or "always" dispensed by 67.3% of pharmacists in a pharmacy. CONCLUSION Pharmacists generally exhibited good knowledge, a positive attitude, and effective practice towards herbal products. However, continuing education programs are needed to train pharmacists in providing client counseling on herbal medicine usage and dispensing them.
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Affiliation(s)
- Abdulrhman Alsayari
- College of Pharmacy, King Khalid University, P.O. Box 1882, Abha 61441, Saudi Arabia
| | - Dalia Almghaslah
- College of Pharmacy, King Khalid University, P.O. Box 1882, Abha 61441, Saudi Arabia
| | - Arwa Khaled
- College of Pharmacy, King Khalid University, P.O. Box 1882, Abha 61441, Saudi Arabia
| | - Sivakumar Annadurai
- College of Pharmacy, King Khalid University, P.O. Box 1882, Abha 61441, Saudi Arabia
| | - Mona Ali Alkhairy
- College of Pharmacy, King Khalid University, P.O. Box 1882, Abha 61441, Saudi Arabia
| | | | - Boshra Abduh Alsayed
- College of Pharmacy, King Khalid University, P.O. Box 1882, Abha 61441, Saudi Arabia
| | | | - Abeer Mohammed Assiri
- College of Pharmacy, King Khalid University, P.O. Box 1882, Abha 61441, Saudi Arabia
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Ohta T, Nakamura S, Nakashima S, Oda Y, Matsumoto T, Fukaya M, Yano M, Yoshikawa M, Matsuda H. Chemical structures of constituents from the whole plant of Bacopa monniera. J Nat Med 2016; 70:404-11. [PMID: 27010932 DOI: 10.1007/s11418-016-0986-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 03/06/2016] [Indexed: 12/27/2022]
Abstract
Two new dammarane-type triterpene oligoglycosides, bacomosaponins A and B, and three new phenylethanoid glycosides, bacomosides A, B1, and B2, were isolated from the whole plant of Bacopa monniera Wettst. The chemical structures of the new constituents were characterized on the basis of chemical and physicochemical evidence. In the present study, bacomosaponins A and B with acyl groups were obtained from the whole plant of B. monniera. This is the first report of acylated dammarane-type triterpene oligoglycosides isolated from B. monniera. In addition, dammarane-type triterpene saponins significantly inhibited the aggregation of 42-mer amyloid β-protein.
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Affiliation(s)
- Tomoe Ohta
- Department of Pharmacognosy, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto, 607-8412, Japan
| | - Seikou Nakamura
- Department of Pharmacognosy, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto, 607-8412, Japan
| | - Souichi Nakashima
- Department of Pharmacognosy, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto, 607-8412, Japan
- N.T.H Co., Ltd., 4F Sky-ebisu Bldg., 1-8-11 Ebisu, Shibuya-ku, Tokyo, 150-0013, Japan
| | - Yoshimi Oda
- Department of Pharmacognosy, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto, 607-8412, Japan
- N.T.H Co., Ltd., 4F Sky-ebisu Bldg., 1-8-11 Ebisu, Shibuya-ku, Tokyo, 150-0013, Japan
| | - Takahiro Matsumoto
- Department of Pharmacognosy, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto, 607-8412, Japan
| | - Masashi Fukaya
- Department of Pharmacognosy, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto, 607-8412, Japan
| | - Mamiko Yano
- Department of Pharmacognosy, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto, 607-8412, Japan
| | - Masayuki Yoshikawa
- Department of Pharmacognosy, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto, 607-8412, Japan
| | - Hisashi Matsuda
- Department of Pharmacognosy, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto, 607-8412, Japan.
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Cucurbitacins from the Leaves of Citrullus colocynthis (L.) Schrad. Molecules 2015; 20:18001-15. [PMID: 26437392 PMCID: PMC6332406 DOI: 10.3390/molecules201018001] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 09/14/2015] [Accepted: 09/23/2015] [Indexed: 02/04/2023] Open
Abstract
Two new tetracyclic cucurbitane-type triterpene glycosides were isolated from an ethyl acetate extract of Citrullus colocynthis leaves together with four known cucurbitacins. Their structures were established on the basis of their spectroscopic data (mainly NMR and mass spectrometry). Evaluation of the in vitro cytotoxic activity of the isolated compounds against two human colon cancer cell lines (HT29 and Caco-2) and one normal rat intestine epithelial cell line (IEC6), revealed that one of the isolated compounds presented interesting specific cytotoxic activity towards colorectal cell lines.
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Hall JA, Seedarala S, Rice N, Kopel L, Halaweish F, Blagg BSJ. Cucurbitacin D Is a Disruptor of the HSP90 Chaperone Machinery. JOURNAL OF NATURAL PRODUCTS 2015; 78:873-9. [PMID: 25756299 PMCID: PMC5892428 DOI: 10.1021/acs.jnatprod.5b00054] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Heat shock protein 90 (Hsp90) facilitates the maturation of many newly synthesized and unfolded proteins (clients) via the Hsp90 chaperone cycle, in which Hsp90 forms a heteroprotein complex and relies upon cochaperones, immunophilins, etc., for assistance in client folding. Hsp90 inhibition has emerged as a strategy for anticancer therapies due to the involvement of clients in many oncogenic pathways. Inhibition of chaperone function results in client ubiquitinylation and degradation via the proteasome, ultimately leading to tumor digression. Small molecule inhibitors perturb ATPase activity at the N-terminus and include derivatives of the natural product geldanamycin. However, N-terminal inhibition also leads to induction of the pro-survival heat shock response (HSR), in which displacement of the Hsp90-bound transcription factor, heat shock factor-1, translocates to the nucleus and induces transcription of heat shock proteins, including Hsp90. An alternative strategy for Hsp90 inhibition is disruption of the Hsp90 heteroprotein complex. Disruption of the Hsp90 heteroprotein complex is an effective strategy to prevent client maturation without induction of the HSR. Cucurbitacin D, isolated from Cucurbita texana, and 3-epi-isocucurbitacin D prevented client maturation without induction of the HSR. Cucurbitacin D also disrupted interactions between Hsp90 and two cochaperones, Cdc37 and p23.
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Affiliation(s)
- Jessica A. Hall
- Department of Medicinal Chemistry, The University Of Kansas, 1251 Wescoe Hall Drive, 4070 Malott Hall, Lawrence, KS 66045
| | - Sahithi Seedarala
- Department of Medicinal Chemistry, The University Of Kansas, 1251 Wescoe Hall Drive, 4070 Malott Hall, Lawrence, KS 66045
| | - Nichole Rice
- Department of Chemistry & Biochemistry, South Dakota State University, Brookings, SD 57007
| | - Lucas Kopel
- Department of Chemistry & Biochemistry, South Dakota State University, Brookings, SD 57007
| | - Fathi Halaweish
- Department of Chemistry & Biochemistry, South Dakota State University, Brookings, SD 57007
| | - Brian S. J. Blagg
- Department of Medicinal Chemistry, The University Of Kansas, 1251 Wescoe Hall Drive, 4070 Malott Hall, Lawrence, KS 66045
- Corresponding author: Brian S. J. Blagg, Phone number: (785) 864-2288,
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12
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Halaweish FT. Cucurbitacins fromCucurbita texana: Evidence for the role of isocucurbitacins. J Chem Ecol 2013; 19:29-37. [PMID: 24248508 DOI: 10.1007/bf00987468] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/1992] [Accepted: 08/19/1992] [Indexed: 11/26/2022]
Abstract
In addition to cucurbitacins E andI, cucurbitacins D,1, 3-epi-isocucurbitacin D,2, and B,3, were isolated from the fruits ofCucurbita texana and structurally identified by UV, IR,(1)H NMR,(13)C NMR, and MS, and 2-O-Β-glucopyranosylcucurbitacin I was identified. These compounds have not been reported previously as constituents of this species. The isolation of 3-epi-isocucurbitacin D2 together with normal cucurbitacins suggests that isocucurbitacins occur naturally. Evidence is also discussed that isocucurbitacins are biosynthesized one step ahead of normal cucurbitacin.
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Affiliation(s)
- F T Halaweish
- Delaware Agricultural Experiment Station Department of Entomology & Applied Ecology College of Agricultural Sciences, University of Delaware, 19717-1303, Newark, Delaware
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13
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Mehta A, Srivastva G, Kachhwaha S, Sharma M, Kothari SL. Antimycobacterial activity of Citrullus colocynthis (L.) Schrad. against drug sensitive and drug resistant Mycobacterium tuberculosis and MOTT clinical isolates. JOURNAL OF ETHNOPHARMACOLOGY 2013; 149:195-200. [PMID: 23816500 DOI: 10.1016/j.jep.2013.06.022] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Revised: 05/31/2013] [Accepted: 06/14/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Citrullus colocynthis (Cucurbitaceae), a folk herbal medicine and traditionally used natural remedy for tuberculosis in India has been studied to validate its antitubercular activity against drug sensitive and drug resistant (including multidrug resistant) Mycobacterium tuberculosis and Mycobacterium other than tuberculosis (MOTT) bacilli. MATERIALS AND METHODS Inhibitory and bactericidal activities of crude extracts, fractions and compounds of Citrullus colocynthis plant, consisting of aerial parts and ripe deseeded fruits were performed against the drug sensitive standard strain of Mycobacterium tuberculosis H37Rv (ATCC 27294), 16 drug resistant strains of Mycobacterium tuberculosis and two MOTT strains, using radiometric BACTEC 460TB system. RESULTS Methanolic extract of ripe deseeded fruit of Citrullus colocynthis has shown good activity (MIC ≤ 62.5 µg/ml), whereas among the bioactive fractions, FC IX demonstrated the best activity (MIC 31.2 µg/ml) against Mycobacterium tuberculosis H37Rv. Bioactive FC III, IX and X also inhibited 16 clinical isolates of Mycobacterium tuberculosis consisting of seven non-multidrug resistants, eight multidrug resistants, one extensively drug resistant and two of MOTTs with MICs in the range of 50-125, 31.2-125 and 62.5-125 µg/ml, respectively. Ursolic acid and cucurbitacin E 2-0-β-d-glucopyranoside were identified as the main biomarkers active against Mycobacterium tuberculosis H37Rv (MICs 50 and 25 µg/ml respectively), as well as against the 18 clinical isolates. FC III and FC IX showed better inhibition of drug resistant and MOTT clinical isolates. Minimal bactericidal concentrations of extracts, fractions and compound C-2 were ≥ two-fold MIC values. CONCLUSIONS The study provides a scientific rationale for the traditional use of Citrullus colocynthis fruit in the treatment of tuberculosis. In addition, the study elucidates a broad spectrum antimycobacterial action of Citrullus colocynthis fruit, which can contribute to the development of improved preparation of an antitubercular natural drug for the treatment of drug resistant tuberculosis and MOTT infection as well.
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Affiliation(s)
- Archana Mehta
- Department of Botany, University of Rajasthan, Jaipur 302004, India
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14
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15
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Abstract
Lagotis yunnanensis is a folkloric medicine in China. In order to investigate its effective components, The 95% ethanol extract of whole plant of L. yunnanensis was separated and purified with chromatographic method. Eight compounds were obtained and identified as luteolin (1), chrysoeriol (2), apigenin-7-methyl ether (3), 3, 4-dimethoxycinnamyl-D-glucopyranoside (4), verbascoside (5), cistanoside D (6), 2-O--D-glucopyranospylcucurbitacin D (7) and arvenin I (8) by spectroscopic methods. Compounds 1~3 are flavonoids, compounds 4~6 are phenylpropanoids and compounds 7 and 8 are triterpenoids. Compounds 4~8 have been obtained from this species for the first time.
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16
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Lang KL, Silva IT, Zimmermann LA, Machado VR, Teixeira MR, Lapuh MI, Galetti MA, Palermo JA, Cabrera GM, Bernardes LSC, Simões CMO, Schenkel EP, Caro MSB, Durán FJ. Synthesis and cytotoxic activity evaluation of dihydrocucurbitacin B and cucurbitacin B derivatives. Bioorg Med Chem 2012; 20:3016-30. [DOI: 10.1016/j.bmc.2012.03.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2011] [Revised: 02/23/2012] [Accepted: 03/01/2012] [Indexed: 01/11/2023]
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17
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Nakashima S, Matsuda H, Kurume A, Oda Y, Nakamura S, Yamashita M, Yoshikawa M. Cucurbitacin E as a new inhibitor of cofilin phosphorylation in human leukemia U937 cells. Bioorg Med Chem Lett 2010; 20:2994-7. [DOI: 10.1016/j.bmcl.2010.02.062] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2010] [Revised: 02/12/2010] [Accepted: 02/16/2010] [Indexed: 11/26/2022]
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18
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Matsuda H, Nakashima S, Abdel-Halim OB, Morikawa T, Yoshikawa M. Cucurbitane-Type Triterpenes with Anti-proliferative Effects on U937 Cells from an Egyptian Natural Medicine, Bryonia cretica: Structures of New Triterpene Glycosides, Bryoniaosides A and B. Chem Pharm Bull (Tokyo) 2010; 58:747-51. [DOI: 10.1248/cpb.58.747] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | | | | | - Toshio Morikawa
- Pharmaceutical Research and Technology Institute, Kinki University
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19
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Chen C, Qiang S, Lou L, Zhao W. Cucurbitane-type triterpenoids from the stems of Cucumis melo. JOURNAL OF NATURAL PRODUCTS 2009; 72:824-829. [PMID: 19348465 DOI: 10.1021/np800692t] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Phytochemical investigation of the stems of Cucumis melo led to the isolation and identification of 21 cucurbitane-type triterpenoids, including nine new compounds (1-9) and 12 known compounds. Their structures were determined on the basis of spectroscopic analyses, chemical methods, and comparison with spectroscopic data in the literature. Two known compounds, cucurbitacin B (10) and cucurbitacin A (11), showed significant cytotoxic activity against the proliferation of A549/ATCC and BEL7402 cells in vitro. Of the new compounds, only compound 7 was weakly cytotoxic. The inhibitory effects of all compounds on the Jak-Stat3 signaling pathway were evaluated, but only cucurbitacin B (10) showed significant inhibitory activity of phosphotyrosine STAT3.
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Affiliation(s)
- Chuan Chen
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
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20
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Chen JC, Zhang GH, Zhang ZQ, Qiu MH, Zheng YT, Yang LM, Yu KB. Octanorcucurbitane and cucurbitane triterpenoids from the tubers of Hemsleya endecaphylla with HIV-1 inhibitory activity. JOURNAL OF NATURAL PRODUCTS 2008; 71:153-155. [PMID: 18088099 DOI: 10.1021/np0704396] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Two new cucurbitacins, endecaphyllacins A (1) and B (2), together with six known analogues (3-8), were isolated from the tubers of Hemsleya endecaphylla. The structures of 1 and 2 were elucidated by NMR and MS spectroscopic analysis. The relative stereochemistry of 1 was determined by single-crystal X-ray diffraction. Compound 4 (cucurbitacin B) showed potent anti-HIV-1 in C8166 cells (EC=0.09 microg/mL) with a selectivity index of 16.7.
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Affiliation(s)
- Jian-Chao Chen
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan, People's Republic of China
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21
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Momma K, Masuzawa Y, Nakai N, Chujo M, Murakami A, Kioka N, Kiyama Y, Akita T, Nagao M. Direct interaction of Cucurbitacin E isolated from Alsomitra macrocarpa to actin filament. Cytotechnology 2007; 56:33-9. [PMID: 19002839 DOI: 10.1007/s10616-007-9100-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2007] [Accepted: 09/19/2007] [Indexed: 11/26/2022] Open
Abstract
A methanol extract of Alsomitra macrocarpa leaves and branches induced a marked alteration of cell morphology in a human stellate cell line (LX-2). Similar morphologic alterations were observed in several other cell lines. Active compound was purified from the extract and determined to be cucurbitacin E (Cuc E). It has been known that Cuc E causes marked disruption of the actin cytoskeleton, supporting our observation, but how Cuc E altered the actin cytoskeleton has not been elucidated. By using the standard fluorescence assay using copolymerization and depolymerization of native and pyrene labelled actin, this study revealed that Cuc E interacted directly with actin consequently stabilizing the polymerized actin. When NIH-3T3 cells exogenously expressing YFP-labeled actin were treated with Cuc E, firstly the aggregation of globular actin and secondly the aggregation of actin including disrupted fibrous actin in the cells was observed.
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Affiliation(s)
- Keiko Momma
- Graduate School of Biostudies, Kyoto University, Kyoto, 606-8502, Japan
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22
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Wang DC, Pan HY, Deng XM, Xiang H, Gao HY, Cai H, Wu LJ. Cucurbitane and hexanorcucurbitane glycosides from the fruits of Cucurbita pepo cv dayangua. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2007; 9:525-9. [PMID: 17885839 DOI: 10.1080/10286020600782538] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Phytochemical investigation of the fruits of Cucurbita pepo cv dayangua has led to the isolation of two cucurbitane glycosides: cucurbitacin L 2-O-beta-D-glucopyranoside (1), cucurbitacin K 2-O-beta-D-glucopyranoside (2) and two hexanorcucurbitane glycosides: 2,16-dihydroxy-22,23,24,25,26,27-hexanorcucurbit-5-en-11,20-dione 2-O-beta-D-glucopyranoside (3) and 16-hydroxy-22,23,24,25,26,27-hexanorcucurbit-5-en-11,20-dione 3-O-alpha-L-rhamnopyranosyl-(1 --> 2)-beta-D-glucopyranoside (4). Compounds 1, 2 and 3 were isolated from Cucurbita genus for the first time, while compound 4 is a new one. Their structures were determined on the basis of chemical and spectroscopic evidence.
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Affiliation(s)
- Da-Cheng Wang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shengyang, China
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23
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Zheng CH, Fu HW, Pei YH. A new cucurbitacin from Bolbostemma paniculatum Franguent. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2007; 9:187-90. [PMID: 17454317 DOI: 10.1080/10286020500246725] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
A new cucurbitacin with an unusual ring A, isocucurbitacin D 25-O-acetate (1), was isolated from Bolbostemma paniculatum Franguent together with one known compound, cucurbitacin E (2). The structure of new compound was established by spectroscopic methods.
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Affiliation(s)
- C-H Zheng
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
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24
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Nayab D, Ali D, Arshad N, Malik A, Choudhary MI, Ahmed Z. Cucurbitacin glucosides fromCitrullus colocynthis. Nat Prod Res 2006; 20:409-13. [PMID: 16644537 DOI: 10.1080/14786410500044997] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A new cucurbitacin glucoside 2-O-beta-D-glucopyranosyl-16alpha-20R-dihydroxy-cucurbita-1,5,23E,25(26)-tetraen-3,11,22-trione (1) has been isolated from the methanolic extract of the fruits of Citrulluscolocynthis. The structure has been assigned on the basis of spectral analysis including 1D and 2D NMR techniques. In addition 2-O-beta-D-glucopyranosyl-cucurbitacin B (arvenin I) (2) and 2,25-di-O-beta-D-glucopyranosyl-cucurbitacin L (3) are reported for the first time from this species.
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Affiliation(s)
- Durey Nayab
- International Center for Chemical Sciences, HEJ, Research Institute of Chemistry, University of Karachi, Karachi-75270, Pakistan
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25
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Chen W, Tang W, Lou L, Zhao W. Pregnane, coumarin and lupane derivatives and cytotoxic constituents from Helicteres angustifolia. PHYTOCHEMISTRY 2006; 67:1041-7. [PMID: 16631831 DOI: 10.1016/j.phytochem.2006.03.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2005] [Revised: 02/15/2006] [Accepted: 03/07/2006] [Indexed: 05/08/2023]
Abstract
2alpha,7beta,20alpha-Trihydroxy-3beta,21-dimethoxy-5-pregnene (1), 6,7,9alpha-trihydroxy-3,8,11alpha-trimethylcyclohexo-[d,e]-coumarin (2), 3beta-hydroxy-27-benzoyloxylup-20(29)-en-28-oic acid (3), and 3beta-hydroxy-27-benzoyloxylup-20(29)-en-28-oic acid methyl ester (4), along with 24 known compounds were isolated and structurally characterized from roots and aerial parts of Helicteres angustifolia (Sterculiaceae). In a preliminary bioassay, the two cucurbitacin derivatives, cucurbitacin D and J exhibited significant inhibitory activities against the growth of both hepatocellular carcinoma BEL-7402 cells and malignant melanoma SK-MEL-28 cells in vitro.
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Affiliation(s)
- Wenliang Chen
- Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Department of Natural Products Chemistry, 555 Zuchongzhi Road, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
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26
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NMR Signal Assignment of 22-Deoxocucurbitacin D and Cucurbitacin D from Ecballium elaterium L. (Cucurbitaceae). MONATSHEFTE FUR CHEMIE 2005. [DOI: 10.1007/s00706-005-0347-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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27
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Seger C, Sturm S, Mair ME, Ellmerer EP, Stuppner H. 1H and 13C NMR signal assignment of cucurbitacin derivatives from Citrullus colocynthis (L.) Schrader and Ecballium elaterium L. (Cucurbitaceae). MAGNETIC RESONANCE IN CHEMISTRY : MRC 2005; 43:489-491. [PMID: 15772995 DOI: 10.1002/mrc.1570] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
2D NMR-derived 1H and 13C NMR signal assignments of six structurally closely related cucurbitacin derivatives are presented. The investigated 2-O-beta-D-glucopyranosylcucurbitacins I, J, K, and L were obtained from Citrullus colocynthis (L.) Schrader whereas the aglyca cucurbitacin E and I were isolated from Ecballium elaterium L.
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Affiliation(s)
- Christoph Seger
- Institute of Pharmacy, Department of Pharmacognosy, University of Innsbruck, Innrain 52, A-6020 Innsbruck, Austria
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28
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Wu PL, Lin FW, Wu TS, Kuoh CS, Lee KH, Lee SJ. Cytotoxic and Anti-HIV Principles from the Rhizomes of Begonia nantoensis. Chem Pharm Bull (Tokyo) 2004; 52:345-9. [PMID: 14993759 DOI: 10.1248/cpb.52.345] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Three new compounds: begonanline (1). nantoamide (2). and methyl (S)-glycerate (3). as well as forty-four known compounds have been isolated and characterized from the rhizomes of Begonia nantoensis. The structures of these compounds were determined by spectral analyses and/or X-ray crystallography. Among them, cucurbitacin B (4). dihydrocucurbitacin B (5). cucurbitacin E (6). dihydrocucurbitacin E (7). cucurbitacin I (8). and (-)-auranamide (9). showed cytotoxicity against four human cancer cell lines. 3beta,22alpha-Dihydroxyolean-12-en-29-oic acid (10), indole-3-carboxylic acid (11), 5,7-dihydroxychromone (12), and (-)-catechin (13) demonstrated significant activity against HIV replication in H9 lymphocyte cells.
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Affiliation(s)
- Pei-Lin Wu
- Department of Chemistry, National Cheng Kung University, Taiwan.
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29
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Jayaprakasam B, Seeram NP, Nair MG. Anticancer and antiinflammatory activities of cucurbitacins from Cucurbita andreana. Cancer Lett 2003; 189:11-6. [PMID: 12445672 DOI: 10.1016/s0304-3835(02)00497-4] [Citation(s) in RCA: 173] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Bioassay-guided purification of an extract of Cucurbita andreana fruits yielded cucurbitacins B (1), D (2), E (3), and I (4). These cucurbitacins were evaluated for their inhibitory effects on the growth of human colon (HCT-116), breast (MCF-7), lung (NCI-H460), and central nervous system (CNS) (SF-268) cancer cell lines, cyclooxygenase-1 (COX-1) and cyclooxygenase-2 (COX-2) enzymes and on lipid peroxidation. Inhibitory activities of cucurbitacins B (1), D (2), E (3) and I (4), respectively, were for colon 81.5, 80.4, 77, and 65% at 0.4 microM, breast 87, 78, 66.5, and 12% at 0.4 microM, lung 96, 43, 37 and 2% at 0.1 microM and CNS 92, 25, 24 and 4% at 0.05 microM. Adriamycin (doxorubicin) was used as a positive control, which showed 64, 47, 45 and 71% inhibition of HCT-116 (colon), MCF-7 (breast), NCI-H460 (lung) and SF-268 (CNS) cell lines, respectively, at 0.3 x 10(-5) M. Compounds 1, 2, 3, and 4 inhibited the COX-2 enzyme by 32, 29, 35, and 27%, respectively, at 100 microg/ml. However these compounds did not inhibit the COX-1 enzyme at this concentration. Ibuprofen, naproxen and vioxx, commercial antiinflammatory drugs, were tested as controls for the inhibition of COX-1 and COX-2 enzymes at concentrations of 2.1, 2.5 and 1.67 microg/ml, respectively. Ibuprofen and naproxen exhibited 59 and 95% COX-1, and 53 and 79% COX-2 inhibitory activities, respectively. Vioxx showed specific COX-2 inhibition by 71%. Also, cucurbitacins 1 and 4 inhibited lipid peroxidation by 59 and 23%, respectively, at 100 microg/ml.
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Affiliation(s)
- Bolleddula Jayaprakasam
- Bioactive Natural Products and Phytoceuticals, Department of Horticulture, Michigan State University, East Lansing, MI 48824, USA
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Sekine T, Kurihara H, Waku M, Ikegami F, Ruangrungsi N. A new pentacyclic cucurbitane glucoside and a new triterpene from the fruits of Gymnopetalum integrifolium. Chem Pharm Bull (Tokyo) 2002; 50:645-8. [PMID: 12036020 DOI: 10.1248/cpb.50.645] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A new pentacyclic cucurbitane glucoside, named aoibaclyin (1) and a new triterpene (2) have been isolated from the EtOH extract of the fruits of Gymnopetalum integrifolium Kurz (Cucurbitaceae), together with three known compounds, bryoamaride (3), 25-O-acetylbryoamaride (4) and beta-sitosterol 3-O-beta-D-glucopyranoside (5). The structures of these compounds were elucidated by spectroscopic analyses.
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Affiliation(s)
- Toshikazu Sekine
- Graduate School of Pharmaceutical Sciences, Chiba University, Japan.
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31
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Marino S, Iorizzi M, Zollo F, Amsler C, Greer S, McClintock J. Three New Asterosaponins from the StarfishGoniopecten demonstrans. European J Org Chem 2000. [DOI: 10.1002/1099-0690(200012)2000:24<4093::aid-ejoc4093>3.0.co;2-m] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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32
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Isaev MI. Bryonia isoprenes. II. Cucurbitacin L and bryoamaride fromBryonia melanocarpa. Chem Nat Compd 2000. [DOI: 10.1007/bf02238339] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Galindo A, Villegas N, Mansilla H. Cucurbitacins From Bryonia Verrucosa. Isomerization of 2-Hydroxy-3-Keto-Cucurbitacins. ACTA ACUST UNITED AC 1999. [DOI: 10.1080/10575639908048799] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Sontag B, Fröde R, Bross M, Steglich W. Chromogenic Triterpenoids fromCortinarius fulvoincarnatus,C. sodagnitus and Related Toadstools (Agaricales). European J Org Chem 1999. [DOI: 10.1002/(sici)1099-0690(199901)1999:1<255::aid-ejoc255>3.0.co;2-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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35
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Kim DK, Choi SH, Lee JO, Ryu SY, Park DK, Shin DH, Jung JH, Pyo SK, Lee KR, Zee OP. Cytotoxic constituents ofSorbaria sorbifolia var.stellipila. Arch Pharm Res 1997; 20:85-7. [DOI: 10.1007/bf02974048] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/1996] [Indexed: 12/22/2022]
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Halaweish FT, Tallamy DW. A new cucurbitacin profile forCucurbita andreana: A candidate for cucurbitacin tissue culture. J Chem Ecol 1993; 19:1135-41. [DOI: 10.1007/bf00987375] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/1992] [Accepted: 01/27/1993] [Indexed: 11/29/2022]
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Sequestration of cucurbitacin analogs by New and Old World chrysomelid leaf beetles in the tribe Luperini. CHEMOECOLOGY 1992. [DOI: 10.1007/bf01261452] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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40
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Weinges K, Schick H, Neuberger K, Ziegler HJ, Lichtenthäler J, Irngartinger H. Naturstoffe aus Arzneipflanzen, XXV Isolierung und Strukturaufklärung neuer Inhaltsstoffe aus dem sodaalkalischen Extrakt vonPicrorhiza kurrooa. ACTA ACUST UNITED AC 1989. [DOI: 10.1002/jlac.198919890278] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Kitajima J, Tanaka Y. [Studies on the constituents of trichosanthes root. II. Constituents of roots of Trichosanthes cucumeroides Maxim]. YAKUGAKU ZASSHI 1989; 109:256-64. [PMID: 2760812 DOI: 10.1248/yakushi1947.109.4_256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
From the fresh roots of Trichosanthes cucumeroides Maxim., three new triterpenoid glycosides with a bitter taste were obtained together with methyl palmitate, palmitic acid, alpha-spinasterol, stigmast-7-en-3 beta-ol, alpha-spinasterol 3-O-beta-D-glucopyranoside, stigmast-7-en-3 beta-ol 3-O-beta-D-glucopyranoside and vanillic acid. On the basis of the results of spectral and chemical investigations, these glycosides were characterized as 25-O-beta-D-glucopyranosyl-11-oxocucurbit-5-ene-3 beta,24(R), 25-triol 3-O-alpha-L-rhamnopyranosyl-(1----2)-beta-D-glucopyranosyl-(1----2)-beta -D- glucopyranoside, 25-O-beta-D-(6-O-acetyl)-glucopyranosyl-11-oxocucurbit-5-ene-3 beta,24(R), 25-triol 3-O-alpha-L-rhamnopyranosyl-(1----2)-beta-D-glucopyranosyl(1----2)- beta-D-glucopyranoside and 11-oxocucurbit-5-ene-3 beta,24(R), 25-triol 3-O-alpha-L-rhamnopyranosyl-(1----2)-beta-D-glucopyranosyl-(1----2)- beta-D-glucopyranoside.
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Andersen J, Plattner R, Weisleder D. Metabolic transformations of cucurbitacins by Diabrotica virgifera virgifera leconte and D. undecimpunctata howardi Barber. ACTA ACUST UNITED AC 1988. [DOI: 10.1016/0020-1790(88)90038-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Panosyan AG, Nikishchenko MN, Avetisyan GM. Structure of 22-deoxocucurbitacins isolated fromBryonia alba andEcbalium elaterium. Chem Nat Compd 1985. [DOI: 10.1007/bf00579070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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