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Kamdeu EN, Menye Nomo AN, Tchoukoua A, Ngomo O, Djimeli Douanla P, Tchuendem Kenmogne MH, Shiono Y, Tabopda TK. Schweinfurthiamide, a new alkaloid isolated from the tuber roots of Asparagus flagellaris Baker (Liliaceae). Nat Prod Res 2023:1-7. [PMID: 37722707 DOI: 10.1080/14786419.2023.2257358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 09/05/2023] [Indexed: 09/20/2023]
Abstract
The phytochemical investigations of the tuber roots of Asparagus flagellaris led to the isolation of a new alkaloid, schweinfurthiamide (1) and eight known compounds. The structures of the isolated compounds were elucidated using spectroscopic techniques 1D and 2D NMR (1H, 13C, COSY, HMBC, HMQC, HSQC-TOCSY). The absolute configuration of 1 was unambiguously determined using DP4+ calculations. Compound 1 showed significant cytotoxicity against MCF-7 (breast cancer), NCI-H460 (lung cancer), and Hela (cervical cancer) cancer cell lines with IC50 values of 1.18 ± 0.02 µM, 2.25 ± 0.19 µM, and 4.23 ± 0.26 µM, respectively and no toxicity against normal human fibroblast (BJ).
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Affiliation(s)
- Elodie Nguelami Kamdeu
- Department of Organic Chemistry, Faculty of Sciences, University of Yaounde 1, Yaounde, Cameroon
| | - Adèle Nicaise Menye Nomo
- Department of Organic Chemistry, Faculty of Sciences, University of Yaounde 1, Yaounde, Cameroon
| | - Abdou Tchoukoua
- Department of Chemistry, Faculty of Science, University of Maroua, Maroua, Cameroon
| | - Orleans Ngomo
- Department of Organic Chemistry, Faculty of Sciences, University of Yaounde 1, Yaounde, Cameroon
| | - Pascal Djimeli Douanla
- Department of Organic Chemistry, Faculty of Sciences, University of Yaounde 1, Yaounde, Cameroon
| | | | - Yoshihito Shiono
- Department of Food, Life, and Environmental Science, Faculty of Agriculture, Yamagata University, Tsuruoka, Yamagata, Japan
| | - Turibio Kuiate Tabopda
- Department of Organic Chemistry, Faculty of Sciences, University of Yaounde 1, Yaounde, Cameroon
- Department of Food, Life, and Environmental Science, Faculty of Agriculture, Yamagata University, Tsuruoka, Yamagata, Japan
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Tchoukoua A, Douanla MH, Ariefta NR, Yoshida J, Ito Y, Ngadjui BT, Shiono Y. Triterpene saponins from the roots of Acacia senegal (L.) Willd. Fitoterapia 2021; 151:104859. [PMID: 33610746 DOI: 10.1016/j.fitote.2021.104859] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/03/2021] [Accepted: 02/04/2021] [Indexed: 10/22/2022]
Abstract
Six new triterpenoid saponins, named senegalosides A-F (1-6) were isolated from the seedpods and roots of Acacia senegal (Mimosaceae). Their structures were elucidated using 1D and 2D-NMR spectroscopic analysis and mass spectrometry. Compound 1 possesses an unusual sapogenin, 3β-hydroxy-21-oxo-olean-12-en-28-oic acid (machaeric acid), and was reported here in its natural form for the first time within the genus Acacia. Senegaloside A is the first example of a machaeric-type triterpenoid glycoside in the plant kingdom. The cytotoxic effect of isolated saponins was evaluated on the H4IIE rat hepatoma cell line. As a result, compounds 1, 3-6 were not significantly cytotoxic to H4IIE cells even at 200 μM. Compound 2 was suppressed cell viability at 50-200 μM.
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Affiliation(s)
- Abdou Tchoukoua
- Department of Chemistry, Faculty of Science, University of Maroua, P.O. Box 814, Maroua, Cameroon.
| | - Mireille Heti Douanla
- Department of Organic Chemistry, University of Yaounde 1, P.O. Box 812, Yaounde, Cameroon
| | - Nanang Rudianto Ariefta
- Department of Food, Life, and Environmental Science, Faculty of Agriculture, Yamagata University, Tsuruoka, Yamagata 997-8555, Japan
| | - Jun Yoshida
- Center for Liberal Arts and Sciences, Iwate Medical University, Yahaba, Iwate 028-3694, Japan
| | - Yoshiaki Ito
- Department of Biological Chemistry and Food Science, Faculty of Agriculture, Iwate University, Morioka, Iwate 020-8550, Japan
| | | | - Yoshihito Shiono
- Department of Food, Life, and Environmental Science, Faculty of Agriculture, Yamagata University, Tsuruoka, Yamagata 997-8555, Japan.
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Bernard D, Matthieu M, Djaouda M, Tchoukoua A, Bale A, Hassana Y, Moise D, Alain M, Benoit L. Evaluation of the Antibacterial Activity of a New Bisiridoid Isolated from Cordia myxa “Boraginaceae”. Arch Pharm Pract 2021. [DOI: 10.51847/wk3oenzd6n] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Tchoukoua A, Hasegawa R, Hendracipta KA, Sato S, Koseki T, Shiono Y. Structure elucidation of new fusarielins from Fusarium sp. and their antimicrobial activity. Magn Reson Chem 2018; 56:32-36. [PMID: 28876470 DOI: 10.1002/mrc.4662] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 07/18/2017] [Accepted: 08/30/2017] [Indexed: 06/07/2023]
Abstract
Three new fusarielins, 3-epi-fusarielin H (1), 3-O-methyl-fusarielin H (2), and 3-O-methyl-epi-fusarielin H (3), were isolated from the fungus Fusarium sp. together with the known analogues, fusarielins F (4) and G (5). The structures of these compounds were elucidated by analysis of their ESI-HRTOFMS, 1D and 2D NMR spectroscopic data. The new compounds exhibited weak antibacterial effect against Staphylococcus aureus.
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Affiliation(s)
- Abdou Tchoukoua
- Department of Organic Chemistry, Faculty of Science, University of Yaounde I, Yaounde, Cameroon
| | - Ryosuke Hasegawa
- Department of Food, Life, and Environmental Science, Faculty of Agriculture, Yamagata University, Yamagata, Japan
| | | | - Satoru Sato
- Department of Food, Life, and Environmental Science, Faculty of Agriculture, Yamagata University, Yamagata, Japan
| | - Takuya Koseki
- Department of Food, Life, and Environmental Science, Faculty of Agriculture, Yamagata University, Yamagata, Japan
| | - Yoshihito Shiono
- Department of Food, Life, and Environmental Science, Faculty of Agriculture, Yamagata University, Yamagata, Japan
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Tchoukoua A, Suzuki T, Ariefta NR, Koseki T, Okawa Y, Kimura KI, Shiono Y. A new eremophilane sesquiterpene from the fungus Xylaria sp. V-27 and inhibition activity against degranulation in RBL-2H3 cells. J Antibiot (Tokyo) 2017; 70:1129-1132. [PMID: 29066795 DOI: 10.1038/ja.2017.120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 05/24/2017] [Accepted: 06/08/2017] [Indexed: 11/09/2022]
Abstract
A new eremophilane sesquiterpene, 13,13-dimethoxyintegric acid (1), together with known compound integric acid (2) have been isolated from a fungus, Xylaria sp. V-27, obtained from a dead branch. The structure of 1 was established by means of spectroscopic analyses. 1 and 2 promoted growth restoring activity against the mutant yeast strain (Saccharomyces cerevisiae (zds1Δ erg3Δ pdr1Δ pdr3Δ)) and inhibited degranulation of rat basophilic leukemia RBL-2H3 cells stimulated by immnunoglobulin G + 2,4-dinitrophenylated-bovine serum albumin (IgE+DNP-BSA), thapsigargin and A23187.
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Affiliation(s)
- Abdou Tchoukoua
- Department of Organic Chemistry, Faculty of Science, University of Yaounde I, Yaounde, Cameroon
| | - Takuma Suzuki
- Department of Food, Life, and Environmental Science, Faculty of Agriculture, Yamagata University, Yamagata, Japan
| | - Nanang Rudianto Ariefta
- Department of Food, Life, and Environmental Science, Faculty of Agriculture, Yamagata University, Yamagata, Japan.,The United Graduate School of Agricultural Sciences, Iwate University, Iwate, Japan
| | - Takuya Koseki
- Department of Food, Life, and Environmental Science, Faculty of Agriculture, Yamagata University, Yamagata, Japan
| | - Yusuke Okawa
- Graduate School of Agriculture, Iwate University, Iwate, Japan
| | - Ken-Ichi Kimura
- Graduate School of Agriculture, Iwate University, Iwate, Japan
| | - Yoshihito Shiono
- Department of Food, Life, and Environmental Science, Faculty of Agriculture, Yamagata University, Yamagata, Japan.,The United Graduate School of Agricultural Sciences, Iwate University, Iwate, Japan
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Tchoukoua A, Tabopda TK, Usukhbayar N, Kimura KI, Kwon E, Momma H, Koseki T, Shiono Y, Ngadjui BT. New triterpene saponins from the roots of Acacia macrostachya (Mimosaceae). Biosci Biotechnol Biochem 2017; 81:2261-2267. [PMID: 29052455 DOI: 10.1080/09168451.2017.1390393] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Four new oleanane-type saponins, macrostachyaosides A, B, C, and D (1-4) were isolated from the roots of Acacia macrostachya. Their structures were elucidated on the basis of extensive 1D- and 2D-NMR data and HR-ESI-MS analyses. At concentrations of 100 μM of each compounds, none of the tested compounds caused a significant growth reduction against HL60 cells.
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Affiliation(s)
- Abdou Tchoukoua
- a Department of Organic Chemistry , University of Yaounde 1 , Yaounde , Cameroon.,b Faculty of Agriculture , Yamagata University , Tsuruoka , Japan
| | | | - Narandulam Usukhbayar
- c The United Graduate School of Agricultural Sciences , Iwate University , Morioka , Japan
| | - Ken-Ichi Kimura
- c The United Graduate School of Agricultural Sciences , Iwate University , Morioka , Japan
| | - Eunsang Kwon
- d Research and Analytical Center for Giant Molecules, Graduate School of Science , Tohoku University , Sendai , Japan
| | - Hiroyuki Momma
- d Research and Analytical Center for Giant Molecules, Graduate School of Science , Tohoku University , Sendai , Japan
| | - Takuya Koseki
- b Faculty of Agriculture , Yamagata University , Tsuruoka , Japan
| | - Yoshihito Shiono
- b Faculty of Agriculture , Yamagata University , Tsuruoka , Japan
| | - Bonaventure Tchaleu Ngadjui
- a Department of Organic Chemistry , University of Yaounde 1 , Yaounde , Cameroon.,e Department of Medicine and Traditional Pharmacopoeia, Faculty of Medicine and Biomedical Sciences , University of Yaounde 1 , Yaounde , Cameroon
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Tchoukoua A, Kuiate Tabopda T, Konga Simo I, Uesugi S, Ohno M, Kimura KI, Kwon E, Momma H, Shiono Y, Ngadjui BT. Albidosides H and I, two new triterpene saponins from the barks of Acacia albida Del. (Mimosaceae). Nat Prod Res 2017; 32:924-932. [PMID: 28868920 DOI: 10.1080/14786419.2017.1371156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Two new triterpene saponins, albidosides H (1) and I (2), along with the three known saponins were isolated from the barks of Acacia albida. Their structures were elucidated on the basis of extensive 1D- and 2D-NMR studies and mass spectrometry. Albidosides H (1) and I (2) were assayed for their cytotoxicity against HeLa and HL60 cells using MTT method.
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Affiliation(s)
- Abdou Tchoukoua
- a Department of Organic Chemistry , University of Yaounde 1 , Yaounde , Cameroon.,b Faculty of Agriculture , Yamagata University , Tsuruoka , Japan
| | | | - Ingrid Konga Simo
- c Department of Chemistry , University of Dschang , Dschang , Cameroon
| | - Shota Uesugi
- d Laboratory of Chemical Biology , The United Graduate School of Agricultural Sciences, Iwate University , Morioka , Japan
| | - Misa Ohno
- d Laboratory of Chemical Biology , The United Graduate School of Agricultural Sciences, Iwate University , Morioka , Japan
| | - Ken-Ichi Kimura
- d Laboratory of Chemical Biology , The United Graduate School of Agricultural Sciences, Iwate University , Morioka , Japan.,e Graduate School of Agriculture , Iwate University , Morioka , Japan
| | - Eunsang Kwon
- f Research and Analytical Center for Giant Molecules, Graduate School of Science , Tohoku University , Sendai , Japan
| | - Hiroyuki Momma
- f Research and Analytical Center for Giant Molecules, Graduate School of Science , Tohoku University , Sendai , Japan
| | - Yoshihito Shiono
- b Faculty of Agriculture , Yamagata University , Tsuruoka , Japan
| | - Bonaventure Tchaleu Ngadjui
- a Department of Organic Chemistry , University of Yaounde 1 , Yaounde , Cameroon.,g Faculty of Medicine and Biomedical Sciences, Department of Medicine and Traditional Pharmacopoeia , University of Yaounde 1 , Yaounde , Cameroon
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Tchoukoua A, Ota T, Akanuma R, Ju YM, Supratman U, Murayama T, Koseki T, Shiono Y. A phytotoxic bicyclic lactone and other compounds from endophyte Xylaria curta. Nat Prod Res 2017; 31:2113-2118. [PMID: 28067069 DOI: 10.1080/14786419.2016.1277352] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 12/11/2016] [Indexed: 10/20/2022]
Abstract
A new compound, (3aS,6aR)-4,5-dimethyl-3,3a,6,6a-tetrahydro-2H-cyclopenta [b]furan-2-one (2), along with two known metabolites, myrotheciumone A (1) and 4-oxo-4H-pyron-3-acetic acid (3) was isolated from the ethyl acetate extract of fermentation broth of Xylaria curta 92092022. The structures of these compounds were elucidated on the basis of spectroscopic methods (UV, IR, HRESITOFMS, 1D NMR, and 2D NMR). Compounds 1 and 2 showed moderate antibacterial and phytotoxic activities.
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Affiliation(s)
- Abdou Tchoukoua
- a Department of Organic Chemistry , University of Yaounde 1 , Yaounde , Cameroon
| | - Takuma Ota
- b Department of Food, Life, and Environmental Science, Faculty of Agriculture , Yamagata University , Tsuruoka , Japan
| | - Rima Akanuma
- b Department of Food, Life, and Environmental Science, Faculty of Agriculture , Yamagata University , Tsuruoka , Japan
| | - Yu-Ming Ju
- c Institute of Plant and Microbial Biology, Academia Sinica, Nankang , Taipei , Taiwan
| | - Unang Supratman
- d Department of Chemistry, Faculty of Mathematics and Natural Sciences , Universitas Padjadjaran , Sumedang , Indonesia
| | - Tetsuya Murayama
- b Department of Food, Life, and Environmental Science, Faculty of Agriculture , Yamagata University , Tsuruoka , Japan
| | - Takuya Koseki
- b Department of Food, Life, and Environmental Science, Faculty of Agriculture , Yamagata University , Tsuruoka , Japan
| | - Yoshihito Shiono
- b Department of Food, Life, and Environmental Science, Faculty of Agriculture , Yamagata University , Tsuruoka , Japan
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Tchoukoua A, Tabopda TK, Uesugi S, Ohno M, Kimura KI, Kwon E, Momma H, Horo I, Çalişkan ÖA, Shiono Y, Ngadjui BT. Triterpene saponins from the roots of Acacia albida Del. (Mimosaceae). Phytochemistry 2017; 136:31-38. [PMID: 28043655 DOI: 10.1016/j.phytochem.2016.12.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 12/21/2016] [Accepted: 12/22/2016] [Indexed: 06/06/2023]
Abstract
Seven previously undescribed bidesmosidic triterpenoid saponins named albidosides A - G, were isolated from a methanol extract of the roots of Acacia albida. Their structures were elucidated using 1D and 2D NMR spectroscopy and mass spectrometry and determined to be bidesmosides of oleanolic acid and of 16α-hydroxyoleanolic acid. Albidosides B - G were assayed for their cytotoxicity against HeLa and HL60 cells using MTT method and microscopic observation.
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Affiliation(s)
- Abdou Tchoukoua
- Department of Organic Chemistry, University of Yaounde 1, P.O. Box 812, Yaounde, Cameroon; Faculty of Agriculture, Yamagata University, 1-23, Wakaba-machi, Tsuruoka, Yamagata, 997-8555, Japan
| | - Turibio Kuiate Tabopda
- Department of Organic Chemistry, University of Yaounde 1, P.O. Box 812, Yaounde, Cameroon.
| | - Shota Uesugi
- Laboratory of Chemical Biology, The United Graduate School of Agricultural Sciences, Iwate University, Morioka, Iwate 020-8550, Japan
| | - Misa Ohno
- Laboratory of Chemical Biology, The United Graduate School of Agricultural Sciences, Iwate University, Morioka, Iwate 020-8550, Japan
| | - Ken-Ichi Kimura
- Laboratory of Chemical Biology, The United Graduate School of Agricultural Sciences, Iwate University, Morioka, Iwate 020-8550, Japan; Graduate School of Agriculture, Iwate University, Morioka, Iwate 020-8550, Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - Hiroyuki Momma
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - Ibrahim Horo
- Department of Chemistry, Faculty of Science, Ege University, 35100, Bornova, İzmir, Turkey
| | - Özgen Alankuş Çalişkan
- Department of Chemistry, Faculty of Science, Ege University, 35100, Bornova, İzmir, Turkey
| | - Yoshihito Shiono
- Faculty of Agriculture, Yamagata University, 1-23, Wakaba-machi, Tsuruoka, Yamagata, 997-8555, Japan.
| | - Bonaventure Tchaleu Ngadjui
- Department of Organic Chemistry, University of Yaounde 1, P.O. Box 812, Yaounde, Cameroon; Department of Medicine and Traditional Pharmacopoeia, Faculty of Medicine and Biomedical Sciences, University of Yaounde 1, P.O. Box 1364, Yaoundé, Cameroon.
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Tchoukoua A, Kuiate Tabopda T, Uesugi S, Kimura KI, Kwon E, Momma H, Ngadjui BT, Koseki T, Shiono Y. Two new 5-deoxyflavan-3,4-diol glucosides from roots of Albizia chevalieri. Magn Reson Chem 2016; 54:893-896. [PMID: 27546306 DOI: 10.1002/mrc.4504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 08/13/2016] [Accepted: 08/17/2016] [Indexed: 06/06/2023]
Abstract
Phytochemical investigation of the roots of Albizia chevalieri led to the isolation of two new 5-deoxyflavan-3,4-diol glucosides from roots of A. chevalieri, Chevalieriflavanosides A and B. Their structures were established by 2D NMR techniques, UV, IR, CD, and mass spectrometry. Cytotoxicity of the two compounds was evaluated against acute promyelocytic leukemia HL60 cells. The antibacterial activities of 1 and 2 also were evaluated against Pseudomonas aeruginosa and Staphylococcus aureus using the agar diffusion test. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Abdou Tchoukoua
- Département de Chimie Organique, Université de Yaoundé 1, Yaoundé, Cameroun
- Department of Food, Life, and Environmental Science, Faculty of Agriculture, Yamagata University, Tsuruoka, Yamagata, Japan
| | | | - Shota Uesugi
- The United Graduate School of Agricultural Sciences, Iwate University, Morioka, Iwate, Japan
| | - Ken-Ichi Kimura
- The United Graduate School of Agricultural Sciences, Iwate University, Morioka, Iwate, Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, Sendai, Miyagi, Japan
| | - Hiroyuki Momma
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, Sendai, Miyagi, Japan
| | | | - Takuya Koseki
- Department of Food, Life, and Environmental Science, Faculty of Agriculture, Yamagata University, Tsuruoka, Yamagata, Japan
| | - Yoshihito Shiono
- Department of Food, Life, and Environmental Science, Faculty of Agriculture, Yamagata University, Tsuruoka, Yamagata, Japan.
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Tchoukoua A, Sandjo LP, Keumedjio F, Ngadjui BT, Kirsch G. Triumfettamide B, a New Ceramide from the Twigs of Triumfetta rhomboidea. Chem Nat Compd 2013. [DOI: 10.1007/s10600-013-0753-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sandjo LP, Tchoukoua A, Ntede HN, Yemloul M, Perspicace E, Keumedjio F, Couty F, Kirsch G, Ngadjui BT. New Nortriterpenoid and Ceramides From Stems and Leaves of Cultivated Triumfetta cordifolia A Rich (Tiliaceae). J AM OIL CHEM SOC 2010. [DOI: 10.1007/s11746-010-1584-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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