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Auberon F, Olatunji OJ, Waffo-Teguo P, Olatunde OO, Singh S, Bonté F, Mérillon JM, Lobstein A. Arundinosides I-IX and graminifolosides A-B: 2R-benzylmalate and 2R-isobutylmalates derivatives from Arundina graminifolia (D.Don) Hochr. with antioxidant, cytocompatibility and cytoprotective properties. Phytochemistry 2023; 206:113504. [PMID: 36403669 DOI: 10.1016/j.phytochem.2022.113504] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 07/07/2022] [Revised: 11/01/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
Phytochemical investigation of the underground parts of Arundina graminifolia D.Don Hochr was conducted leading to the isolation of nine new glucosyloxybenzyl 2R-benzylmalate and two new glucosyloxybenzyl 2R-isobutylmalate derivatives. The compounds were purified using chromatographic techniques and their structures were deduced based on spectroscopic techniques including nuclear magnetic resonance and high-resolution mass spectrometry as well as comparing with previous literature. The antioxidant activities of the isolated compounds were also evaluated. The compounds showed potent antioxidant activities in the ABTS radical scavenging, DPPH radical scavenging and FRAP activities. Furthermore, the isolated compounds were observed to exert minimal cytotoxic effects against RAW 264.7 cell, suggesting biocompatibility as well as cytoprotective effects against hydrogen peroxide induced cell toxicity.
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Affiliation(s)
- Florence Auberon
- Strasbourg University, Faculty of Pharmacy, UMR 7200, 67400, Illkirch-Graffenstaden, France.
| | - Opeyemi Joshua Olatunji
- African Genome Center, Mohammed VI Polytechnic University, Ben Guerir, 43150, Morocco; Traditional Thai Medical Research and Innovation Center, Faculty of Traditional Thai Medicine, Prince of Songkla University, Hat Yai, 90110, Thailand
| | - Pierre Waffo-Teguo
- Bordeaux University, Faculty of Pharmacy, ISVV, EA 4577, USC 1366 INRA, 33400, Villenave d'Ornon Cedex, France
| | - Oladipupo Odunayo Olatunde
- Department of Food and Human Nutritional Sciences, Faculty of Agricultural and Food Sciences, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada
| | - Sudarshan Singh
- Faculty of Pharmacy, Chiang Mai University, Chiang Mai, 50200, Thailand
| | | | - Jean-Michel Mérillon
- Bordeaux University, Faculty of Pharmacy, ISVV, EA 4577, USC 1366 INRA, 33400, Villenave d'Ornon Cedex, France
| | - Annelise Lobstein
- Strasbourg University, Faculty of Pharmacy, UMR 7200, 67400, Illkirch-Graffenstaden, France
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2
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Auberon F, Olatunji OJ, Waffo-Teguo P, Adekoya AE, Bonté F, Mérillon JM, Lobstein A. New glucosyloxybenzyl 2R-benzylmalate derivatives from the undergrounds parts of Arundina graminifolia (Orchidaceae). Fitoterapia 2019; 135:33-43. [DOI: 10.1016/j.fitote.2019.03.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/24/2019] [Accepted: 03/30/2019] [Indexed: 01/17/2023]
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3
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Lobstein A, Couic-Marinier F, Koziol N. Huile essentielle d’ Eucalyptus radiata. Actualités Pharmaceutiques 2018. [DOI: 10.1016/j.actpha.2018.02.010] [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: 10/17/2022]
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4
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Noté OP, Simo LM, Mbing JN, Guillaume D, Muller CD, Pegnyemb DE, Lobstein A. Structural determination of two new acacic acid-type saponins from the stem barks of Albizia zygia (DC.) J. F. Macbr. Nat Prod Res 2018; 33:180-188. [DOI: 10.1080/14786419.2018.1440228] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Olivier Placide Noté
- Faculté de Pharmacie, Laboratoire d’Innovation Thérapeutique, UMR 7200, CNRS-Université de Strasbourg, Illkirch Cedex, France
- Faculté de Sciences, Laboratoire de Pharmacochimie des Substances Naturelles, Département de Chimie Organique, Université de Yaoundé I, Yaoundé, Cameroun
| | - Line Made Simo
- Faculté de Pharmacie, Laboratoire d’Innovation Thérapeutique, UMR 7200, CNRS-Université de Strasbourg, Illkirch Cedex, France
- Faculté de Sciences, Laboratoire de Pharmacochimie des Substances Naturelles, Département de Chimie Organique, Université de Yaoundé I, Yaoundé, Cameroun
| | - Joséphine Ngo Mbing
- Faculté de Sciences, Laboratoire de Pharmacochimie des Substances Naturelles, Département de Chimie Organique, Université de Yaoundé I, Yaoundé, Cameroun
| | - Dominique Guillaume
- Laboratoire de Chimie Thérapeutique, UMR7312, Université de Reims, Reims, France
| | - Christian Dominique Muller
- Institut Pluridisciplinaire Hubert Curien, UMR 7178 CNRS Université de Strasbourg, Illkirch Cedex, France
| | - Dieudonné Emmanuel Pegnyemb
- Faculté de Sciences, Laboratoire de Pharmacochimie des Substances Naturelles, Département de Chimie Organique, Université de Yaoundé I, Yaoundé, Cameroun
| | - Annelise Lobstein
- Faculté de Pharmacie, Laboratoire d’Innovation Thérapeutique, UMR 7200, CNRS-Université de Strasbourg, Illkirch Cedex, France
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Noté OP, Ngo Mbing J, Kilhoffer MC, Pegnyemb DE, Lobstein A. Lebbeckoside C, a new triterpenoid saponin from the stem barks of Albizia lebbeck inhibits the growth of human glioblastoma cells. Nat Prod Res 2018; 33:2292-2299. [DOI: 10.1080/14786419.2018.1440231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Olivier Placide Noté
- Faculté de Pharmacie, Pharmacognosie et Molécules Naturelles Bioactives, Laboratoire d’Innovation Thérapeutique, UMR 7200, CNRS-Université de Strasbourg, Illkirch Cedex, France
- Faculté de Sciences, Laboratoire de Pharmacochimie des Substances Naturelles, Département de Chimie Organique, Université de Yaoundé, Yaoundé, Cameroon
| | - Joséphine Ngo Mbing
- Faculté de Sciences, Laboratoire de Pharmacochimie des Substances Naturelles, Département de Chimie Organique, Université de Yaoundé, Yaoundé, Cameroon
| | - Marie-Claude Kilhoffer
- Faculté de Pharmacie, Chimie-Biologie Intégrative, Laboratoire d’Innovation Thérapeutique, UMR 7200, CNRS-Université de Strasbourg, Illkirch Cedex, France
| | - Dieudonné Emmanuel Pegnyemb
- Faculté de Sciences, Laboratoire de Pharmacochimie des Substances Naturelles, Département de Chimie Organique, Université de Yaoundé, Yaoundé, Cameroon
| | - Annelise Lobstein
- Faculté de Pharmacie, Pharmacognosie et Molécules Naturelles Bioactives, Laboratoire d’Innovation Thérapeutique, UMR 7200, CNRS-Université de Strasbourg, Illkirch Cedex, France
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Lobstein A, Couic-Marinier F, Koziol N. Huile essentielle d’ Eucalyptus globulus. Actualités Pharmaceutiques 2018. [DOI: 10.1016/j.actpha.2017.11.033] [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: 10/18/2022]
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Lobstein A, Couic-Marinier F, Briot C. Huile essentielle de Laurier noble. Actualités Pharmaceutiques 2017; 56:57-60. [PMID: 32288135 PMCID: PMC7132657 DOI: 10.1016/j.actpha.2017.09.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Annelise Lobstein
- Laboratoire d’innovation thérapeutique (UMR 7200), Faculté de pharmacie de Strasbourg, 74 route du Rhin, CS 60024, 67401 Illkirch cedex, France
| | | | - Camille Briot
- c/o Elsevier Masson, 65 rue Camille-Desmoulins, 92442 Issy-les-Moulineaux cedex, France
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Abstract
Dendrobium represents one of the most important orchid genera, ornamentally and medicinally. Dendrobiums are sympodial epiphytic plants, which is a name they are worthy of, the name coming from Greek origin: "dendros", tree, and "bios", life. Dendrobium species have been used for a thousand years as first-rate herbs in traditional Chinese medicine (TCM). They are source of tonic, astringent, analgesic, antipyretic, and anti-inflammatory substances, and have been traditionally used as medicinal herbs in the treatment of a variety of disorders, such as, nourishing the stomach, enhancing production of body fluids or nourishing Yin. The Chinese consider Dendrobium as one of the fifty fundamental herbs used to treat all kinds of ailments and use Dendrobium tonic for longevity. This review is focused on main research conducted during the last decade (2006-2016) on Dendrobium plants and their constituents, which have been subjected to investigations of their pharmacological effects involving anticancer, anti-diabetic, neuroprotective and immunomodulating activities, to report their undeniable potential for treating age-related pathologies.
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Affiliation(s)
- Veronika Cakova
- 1Université de Strasbourg, CNRS, LIT UMR 7200, F-67000 Strasbourg, France
| | | | - Annelise Lobstein
- 1Université de Strasbourg, CNRS, LIT UMR 7200, F-67000 Strasbourg, France
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Simo LM, Noté OP, Mbing JN, Aouazou SA, Guillaume D, Muller CD, Pegnyemb DE, Lobstein A. New Cytotoxic Triterpenoid Saponins from the Roots of Albizia gummifera
(J.F.Gmel
.) C.A.Sm
. Chem Biodivers 2017; 14. [DOI: 10.1002/cbdv.201700260] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 07/05/2017] [Indexed: 01/23/2023]
Affiliation(s)
- Line Made Simo
- Laboratoire d'Innovation Thérapeutique; UMR 7200; Faculté de Pharmacie; CNRS-Université de Strasbourg; 74 route du Rhin F-67401 Illkirch Cedex France
- Département de Chimie Organique; Laboratoire de Pharmacochimie des Substances Naturelles; Faculté de Sciences; Université de Yaoundé I; BP 812, Yaoundé Cameroon
| | - Olivier Placide Noté
- Laboratoire d'Innovation Thérapeutique; UMR 7200; Faculté de Pharmacie; CNRS-Université de Strasbourg; 74 route du Rhin F-67401 Illkirch Cedex France
- Département de Chimie Organique; Laboratoire de Pharmacochimie des Substances Naturelles; Faculté de Sciences; Université de Yaoundé I; BP 812, Yaoundé Cameroon
| | - Joséphine Ngo Mbing
- Département de Chimie Organique; Laboratoire de Pharmacochimie des Substances Naturelles; Faculté de Sciences; Université de Yaoundé I; BP 812, Yaoundé Cameroon
| | - Sarah Ali Aouazou
- Laboratoire d'Innovation Thérapeutique; UMR 7200; Faculté de Pharmacie; CNRS-Université de Strasbourg; 74 route du Rhin F-67401 Illkirch Cedex France
| | - Dominique Guillaume
- Laboratoire de Chimie Thérapeutique; UMR7312; Université de Reims; 51 rue Cognacq-Jay F-51100 Reims France
| | - Christian Dominique Muller
- Institut Pluridisciplinaire Hubert Curien; UMR 7178; Faculté de Pharmacie; CNRS-Université de Strasbourg; 74 route du Rhin F-67401 Illkirch Cedex France
| | - Dieudonné Emmanuel Pegnyemb
- Département de Chimie Organique; Laboratoire de Pharmacochimie des Substances Naturelles; Faculté de Sciences; Université de Yaoundé I; BP 812, Yaoundé Cameroon
| | - Annelise Lobstein
- Laboratoire d'Innovation Thérapeutique; UMR 7200; Faculté de Pharmacie; CNRS-Université de Strasbourg; 74 route du Rhin F-67401 Illkirch Cedex France
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10
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Cakova V, Ossman T, Rajnochova Svobodova A, Vostalova J, Delecolle J, Groh C, Bonté F, Heintz D, Ulrichova J, Trouillas P, Lobstein A. Molecular rationalization of antioxidant properties of bioactive compounds from Aerides rosea Lodd. ex. Lindl. & Paxton (Orchidaceae). Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- V Cakova
- LVMH Recherche, Saint Jean de Braye, France
- Université de Strasbourg, CNRS, LIT UMR 7200, Illkirch Graffenstaden, France
| | - T Ossman
- UMR 850, INSERM, Univ. Limoges, Faculty of Pharmacy, Limoges, France
| | - A Rajnochova Svobodova
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Olomouc, Czech Republic
| | - J Vostalova
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Olomouc, Czech Republic
| | - J Delecolle
- Institut de Biologie Moléculaire des Plantes, Plateforme métabolomique, CNRS-UPR 2357, Strasbourg, France
| | - C Groh
- Institut de Biologie Moléculaire des Plantes, Plateforme métabolomique, CNRS-UPR 2357, Strasbourg, France
| | - F Bonté
- LVMH Recherche, Saint Jean de Braye, France
| | - D Heintz
- Institut de Biologie Moléculaire des Plantes, Plateforme métabolomique, CNRS-UPR 2357, Strasbourg, France
| | - J Ulrichova
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Olomouc, Czech Republic
| | - P Trouillas
- UMR 850, INSERM, Univ. Limoges, Faculty of Pharmacy, Limoges, France
- RCPTM, Faculty of Science, Palacký University, Olomouc, Czech Republic
| | - A Lobstein
- Université de Strasbourg, CNRS, LIT UMR 7200, Illkirch Graffenstaden, France
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11
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Poutaraud A, Guilloteau L, Gros C, Lobstein A, Meziani S, Steyer D, Moisan MP, Foury A, Lansade L. Beneficial effects of Lavender (Lavandula angustifolia Mill.) essential oil application prior a stressful situation in horses. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- A Poutaraud
- Laboratoire Agronomie et Environnement, INRA, UMR 1121, Colmar, France
| | | | - C Gros
- Twistaroma®, Colmar, France
| | - A Lobstein
- Laboratoire d'Innovation Thérapeutique, Faculté de Pharmacie, UMR 7200, Strasbourg, France
| | - S Meziani
- Institut Européen des Antioxydants, Vandoeuvre les Nancy, France
| | | | - MP Moisan
- Nutrition and integrative neurobiology, INRA, UMR 1286, Bordeaux, France
| | - A Foury
- Nutrition and integrative neurobiology, INRA, UMR 1286, Bordeaux, France
| | - L Lansade
- Unité Physiologie de la Reproduction et des Comportements, INRA, UMR85, Nouzilly, France
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Lobstein A, Couic-Marinier F, Barbelet S. Huile essentielle de Clou de girofle. Actualités Pharmaceutiques 2017. [DOI: 10.1016/j.actpha.2017.07.012] [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: 10/18/2022]
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13
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Tsoukalas M, Psichas A, Reimann F, Gribble FM, Lobstein A, Urbain A. Pregnane glycosides from Cynanchum menarandrense. Steroids 2017; 125:27-32. [PMID: 28636871 PMCID: PMC7212057 DOI: 10.1016/j.steroids.2017.06.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 06/09/2017] [Accepted: 06/14/2017] [Indexed: 01/07/2023]
Abstract
Five new pregnane-type steroidal glycosides, named menarandrosides A-E (1-2, 5-7) were isolated from the aerial parts of Cynanchum menarandrense, together with three known compounds, carumbelloside I (3), carumbelloside II (4), and pregnenolone-3-O-gentiobioside (8). Their structures were determined on the basis of spectroscopic analyses including NMR and mass spectrometry, reporting C-21 steroids glycosylated only by one or two glucose moieties. Compounds were then investigated for their potential to stimulate glucagon-like peptide-1 (GLP-1) secretion in intestinal cells; although none of the pure compounds had any influence, the fraction enriched in pregnanes exhibited a significant activity, suggesting a possible synergistic effect. Furthermore, none of the purified compounds affected cell viability.
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Affiliation(s)
- Michail Tsoukalas
- Pharmacognosy and Bioactive Natural Products, Université de Strasbourg, CNRS, LIT UMR 7200, F-67000 Strasbourg, France
| | - Arianna Psichas
- Metabolic Research Laboratories and MRC Metabolic Diseases Unit, WT-MRC Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge, Cambridge CB2 0QQ, UK
| | - Frank Reimann
- Metabolic Research Laboratories and MRC Metabolic Diseases Unit, WT-MRC Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge, Cambridge CB2 0QQ, UK
| | - Fiona M Gribble
- Metabolic Research Laboratories and MRC Metabolic Diseases Unit, WT-MRC Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge, Cambridge CB2 0QQ, UK
| | - Annelise Lobstein
- Pharmacognosy and Bioactive Natural Products, Université de Strasbourg, CNRS, LIT UMR 7200, F-67000 Strasbourg, France
| | - Aurélie Urbain
- Pharmacognosy and Bioactive Natural Products, Université de Strasbourg, CNRS, LIT UMR 7200, F-67000 Strasbourg, France.
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14
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Lobstein A, Couic-Marinier F. Huile essentielle d’Hélichryse. Actualités Pharmaceutiques 2017. [DOI: 10.1016/j.actpha.2017.03.039] [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: 10/19/2022]
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15
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Lobstein A, Couic-Marinier F. Huile essentielle de Gaulthérie. Actualités Pharmaceutiques 2017. [DOI: 10.1016/j.actpha.2016.11.032] [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: 11/28/2022]
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16
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Auberon F, Olatunji OJ, Krisa S, Antheaume C, Herbette G, Bonté F, Mérillon JM, Lobstein A. Two New Stilbenoids from the Aerial Parts of Arundina graminifolia (Orchidaceae). Molecules 2016; 21:molecules21111430. [PMID: 27801800 PMCID: PMC6273616 DOI: 10.3390/molecules21111430] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 10/21/2016] [Accepted: 10/23/2016] [Indexed: 11/17/2022] Open
Abstract
Two new phenanthrene derivatives, a phenanthrenequinone named arundiquinone (1) and a 9,10-dihydrophenanthrene named arundigramin (2) together with a known lignin dimer (3) and seven known stilbenoids (4–10) were isolated from the aerial parts of the Asian orchid Arundina graminifolia. The structures of the isolated compounds were elucidated by spectroscopic methods, including extensive 1D, 2D NMR (heteronuclear single quantum coherence (HSQC), heteronuclear multiple-bond correlation spectroscopy (HMBC), and HR-ESI-MS techniques, as well as comparison with respective literature reports. The cytoprotective activity of the isolated compounds were evaluated for their ability to reduce beta amyloid induced toxicity on undifferentiated PC12 cells. Compound 8 showed moderate cytoprotective activity at 0.5 µmol/L (71% of cell viability) while the other compounds showed no significant activity at the highest concentration tested.
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Affiliation(s)
- Florence Auberon
- Laboratory of Pharmacognosy and Bioactive Natural Products, Faculty of Pharmacy, Strasbourg University, Illkirch-Graffenstaden 67400, France.
| | - Opeyemi Joshua Olatunji
- Laboratory of Pharmacognosy and Bioactive Natural Products, Faculty of Pharmacy, Strasbourg University, Illkirch-Graffenstaden 67400, France.
| | - Stéphanie Krisa
- GESVAB Group, Oenology Research Unit, EA 4577, USC 1366 INRA, ISVV, Faculty of Pharmacy, Bordeaux University, Villenave d'Ornon 33140, France.
| | - Cyril Antheaume
- Laboratoire Insulaire du Vivant et de l'Environnement, EA 4243, New-Caledonia University, BP R4, Noumea CEDEX 98851, New Caledonia.
| | - Gaëtan Herbette
- Spectropôle, FR1739, Aix-Marseille University, Campus de St Jerome-Service 511, Marseille 13397, France.
| | - Frédéric Bonté
- Louis Vuitton Moët et Hennessy Recherche, 185 avenue de Verdun, St Jean de Braye 45800, France.
| | - Jean-Michel Mérillon
- GESVAB Group, Oenology Research Unit, EA 4577, USC 1366 INRA, ISVV, Faculty of Pharmacy, Bordeaux University, Villenave d'Ornon 33140, France.
| | - Annelise Lobstein
- Laboratory of Pharmacognosy and Bioactive Natural Products, Faculty of Pharmacy, Strasbourg University, Illkirch-Graffenstaden 67400, France.
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17
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Gourguillon L, Destandau É, Lobstein A, Lesellier É. Comparaison de différentes méthodes d'extraction d'acides dicaféoylquiniques à partir d'une plante halophile. CR CHIM 2016. [DOI: 10.1016/j.crci.2016.03.009] [Citation(s) in RCA: 5] [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: 01/09/2023]
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18
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Lobstein A, Couic-Marinier F. Huile essentielle de Menthe poivrée. Actualités Pharmaceutiques 2016. [DOI: 10.1016/j.actpha.2016.06.021] [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: 10/21/2022]
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19
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Tsoukalas M, Muller CD, Lobstein A, Urbain A. Pregnane Glycosides from Cynanchum marnierianum Stimulate GLP-1 Secretion in STC-1 Cells. Planta Med 2016; 82:992-999. [PMID: 27224272 DOI: 10.1055/s-0042-107675] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In the framework of the search for natural glucagon-like peptide-1 secretagogues, the bioassay-guided fractionation of the ethanolic extract from Cynanchum marnierianum led to the isolation of two new pregnane glycosides named marnieranosides A (1) and B (2). The structures were determined based on spectroscopic data and were established as 12β,20 S-O-dibenzoyl-pregn-6-en-5α,8β,14β,17β-tetraol-3-O-β-D-oleandropyranosyl-(1 → 4)-β-D-cymaropyranoside (1) and 12β,20R-O-dibenzoyl-pregn-6-en-5α,8β,14β-triol-3-O-β-D-oleandropyranosyl-(1 → 4)-β-D-canaropyranosyl-(1 → 4)-β-D-cymaropyranoside (2). They present structural analogies to pregnanes previously described in species known for their appetite suppressant and antihyperglycemic effects, such as P57 from Hoodia gordonii. Lupeol (3), a known dipeptidyl peptidase-4 inhibitor, and the insulinomimetic kaempferol-3-O-neohesperidoside (4) were also identified in C. marnierianum. In an in vitro assay on secretin tumor cell line-1 cells, compounds 1, 2, and P57 were found to stimulate the secretion of GLP-1 by 130 % (all tested at 100 µM). These results suggest that C. marnierianum could be of great interest in the treatment of type 2 diabetes, and that pregnane derivatives should be partly responsible via the stimulation of glucagon-like peptide-1 secretion.
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Affiliation(s)
- Michail Tsoukalas
- Laboratory of Pharmacognosy and Bioactive Natural Products, UMR 7200, University of Strasbourg, Illkirch Graffenstaden, France
| | - Christian D Muller
- Laboratory of Pharmacognosy and Bioactive Natural Products, UMR 7200, University of Strasbourg, Illkirch Graffenstaden, France
| | - Annelise Lobstein
- Laboratory of Pharmacognosy and Bioactive Natural Products, UMR 7200, University of Strasbourg, Illkirch Graffenstaden, France
| | - Aurélie Urbain
- Laboratory of Pharmacognosy and Bioactive Natural Products, UMR 7200, University of Strasbourg, Illkirch Graffenstaden, France
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Khiralla A, Mohamed IE, Tzanova T, Schohn H, Slezack-Deschaumes S, Hehn A, André P, Carre G, Spina R, Lobstein A, Yagi S, Laurain-Mattar D. Endophytic fungi associated with Sudanese medicinal plants show cytotoxic and antibiotic potential. FEMS Microbiol Lett 2016; 363:fnw089. [PMID: 27190291 DOI: 10.1093/femsle/fnw089] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/05/2016] [Indexed: 01/09/2023] Open
Abstract
In this study, we isolated 15 endophytic fungi from five Sudanese medicinal plants. Each fungal endophytic strain was identified by sequencing of internal transcribed spacer (ITS) regions of rDNA. Ethyl acetate extracts were prepared from each endophyte cultivated in vitro and tested for their respective antibacterial activities and antiproliferative activities against human cancer cells. Antibacterial screening was carried out against two bacterial strains: Gram-negative Escherichia coli and Gram-positive methicillin-resistant Staphylococcus aureus, by the broth dilution method. Cell viability was evaluated by the MTT procedure after exposure of MCF7 breast cancer cells and HT29 or HCT116 human colon adenocarcinoma cells to each endophytic extract. Of interest, Byssochlamys spectabilis isolated from Euphorbia prostata showed cytotoxicity (IC50 = 1.51 ± 0.2 μg mL(-1)) against MCF7 cells, but had a low effect against HT29 or HCT116 cells (IC50 > 20 μg mL(-1)). Cladosporium cladosporioides 2, isolated from Vernonia amygdalina leaves, showed antiproliferative activities against MCF7 cells (IC50 = 10.5 ± 1.5 μg mL(-1)) only. On the other hand, B. spectabilis and Alternaria sp. extract had antibacterial activities against the S. aureus strain. The findings of this work revealed that endophytic fungi associated with medicinal plants from Sudan could be considered as an attractive source of new therapeutic compounds.
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Affiliation(s)
- Afra Khiralla
- Université de Lorraine, SRSMC, UMR 7565, BP 70239, F-54506 Vandœuvre-lès-Nancy, France CNRS, SRSMC, UMR 7565, BP 70239, F-54506 Vandœuvre-lès-Nancy, France
| | - Ietidal E Mohamed
- Botany Department, Faculty of Science, University of Khartoum, PO Box 321, Khartoum, Sudan
| | - Tzvetomira Tzanova
- CNRS, SRSMC, UMR 7565, BP 70239, F-54506 Vandœuvre-lès-Nancy, France Université de Lorraine, UMR CNRS 7565, SRSMC, Campus Bridoux, rue du Général Delestraint, 57070 Metz Cedex, France
| | - Hervé Schohn
- CNRS, SRSMC, UMR 7565, BP 70239, F-54506 Vandœuvre-lès-Nancy, France Université de Lorraine, UMR CNRS 7565, SRSMC, Campus Bridoux, rue du Général Delestraint, 57070 Metz Cedex, France
| | - Sophie Slezack-Deschaumes
- Université de Lorraine, UMR 1121, Laboratoire Agronomie et Environnement, TSA 40602, F-54518 Vandœuvre-lès-Nancy, France INRA, UMR 1121, Laboratoire Agronomie et Environnement, TSA 40602, F-54518 Vandœuvre-lès-Nancy, France
| | - Alain Hehn
- Université de Lorraine, UMR 1121, Laboratoire Agronomie et Environnement, TSA 40602, F-54518 Vandœuvre-lès-Nancy, France INRA, UMR 1121, Laboratoire Agronomie et Environnement, TSA 40602, F-54518 Vandœuvre-lès-Nancy, France
| | - Philippe André
- Université de Strasbourg, UMR 7213, Laboratoire de Biophotonique et de Pharmacologie, 74 route du Rhin, 67400 Illkirch Graffenstaden, France
| | - Gaëlle Carre
- Université de Strasbourg, UMR 7213, Laboratoire de Biophotonique et de Pharmacologie, 74 route du Rhin, 67400 Illkirch Graffenstaden, France
| | - Rosella Spina
- Université de Lorraine, SRSMC, UMR 7565, BP 70239, F-54506 Vandœuvre-lès-Nancy, France CNRS, SRSMC, UMR 7565, BP 70239, F-54506 Vandœuvre-lès-Nancy, France
| | - Annelise Lobstein
- Université de Strasbourg, UMR CNRS 7200, Laboratoire d'Innovation Thérapeutique, Pharmacognosie et Molécules Naturelles Bioactives, 74 route du Rhin, CS 60024, 67400 Illkirch Graffenstaden, France
| | - Sakina Yagi
- Botany Department, Faculty of Science, University of Khartoum, PO Box 321, Khartoum, Sudan
| | - Dominique Laurain-Mattar
- Université de Lorraine, SRSMC, UMR 7565, BP 70239, F-54506 Vandœuvre-lès-Nancy, France CNRS, SRSMC, UMR 7565, BP 70239, F-54506 Vandœuvre-lès-Nancy, France
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Noté OP, Azouaou SA, Simo L, Antheaume C, Guillaume D, Pegnyemb DE, Muller CD, Lobstein A. Phenotype-specific apoptosis induced by three new triterpenoid saponins from Albizia glaberrima (Schumach. & Thonn.) Benth. Fitoterapia 2016; 109:80-6. [DOI: 10.1016/j.fitote.2015.12.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 12/15/2015] [Accepted: 12/17/2015] [Indexed: 02/07/2023]
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Cakova V, Urbain A, Le Quéméner C, Audo G, Bonté F, Lobstein A. Purification of vandaterosides fromVanda teres(Orchidaceae) by stepwise gradient centrifugal partition chromatography. J Sep Sci 2015; 38:3006-13. [DOI: 10.1002/jssc.201500349] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 06/10/2015] [Accepted: 06/12/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Veronika Cakova
- Laboratory of Pharmacognosy and Bioactive Natural Products, UMR 7200, Faculty of Pharmacy; University of Strasbourg; Illkirch Graffenstaden France
| | - Aurélie Urbain
- Laboratory of Pharmacognosy and Bioactive Natural Products, UMR 7200, Faculty of Pharmacy; University of Strasbourg; Illkirch Graffenstaden France
| | | | | | | | - Annelise Lobstein
- Laboratory of Pharmacognosy and Bioactive Natural Products, UMR 7200, Faculty of Pharmacy; University of Strasbourg; Illkirch Graffenstaden France
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Hamdi A, Lesnard A, Suzanne P, Robert T, Miteva MA, Pellerano M, Didier B, Ficko-Blean E, Lobstein A, Hibert M, Rault S, Morris MC, Colas P. Tampering with Cell Division by Using Small-Molecule Inhibitors of CDK-CKS Protein Interactions. Chembiochem 2015; 16:432-9. [DOI: 10.1002/cbic.201402579] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Indexed: 11/07/2022]
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Noté OP, Jihu D, Antheaume C, Zeniou M, Pegnyemb DE, Guillaume D, Chneiwess H, Kilhoffer MC, Lobstein A. Triterpenoid saponins from Albizia lebbeck (L.) Benth and their inhibitory effect on the survival of high grade human brain tumor cells. Carbohydr Res 2015; 404:26-33. [PMID: 25662738 DOI: 10.1016/j.carres.2014.12.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [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: 08/23/2014] [Revised: 11/20/2014] [Accepted: 12/13/2014] [Indexed: 11/19/2022]
Abstract
As part of our search of new bioactive triterpenoid saponins from Cameroonian Mimosaceae plants, phytochemical investigation of the roots of Albizia lebbeck led to the isolation of two new oleanane-type saponins, named lebbeckosides A-B (1-2). Their structures were established on the basis of extensive 1D and 2D NMR ((1)H, (13)C NMR, DEPT, COSY, TOCSY, ROESY, HSQC, and HMBC) and HRESIMS studies, and by chemical evidence. Compounds 1-2 were evaluated for their inhibitory effect on the metabolism of high grade human brain tumor cells, the human glioblastoma U-87 MG cell lines and the glioblastoma stem-like TG1 cells isolated from a patient tumor, and known to be particularly resistant to standard therapies. The isolated saponins showed significant cytotoxic activity against U-87 MG and TG1 cancer cells with IC50 values of 3.46 μM and 1.36 μM for 1, and 2.10 μM and 2.24 μM for 2, respectively.
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Affiliation(s)
- Olivier Placide Noté
- Pharmacognosie et Molécules Naturelles Bioactives, Laboratoire d'Innovation Thérapeutique, UMR 7200, CNRS-Université de Strasbourg, Faculté de Pharmacie, 74 route du Rhin, F-67401 Illkirch Cedex, France; Laboratoire de Pharmacochimie des Substances Naturelles, Département de Chimie Organique, Faculté de Sciences, Université de Yaoundé, BP 812 Yaoundé, Cameroon.
| | - Dong Jihu
- Chimie-Biologie Intégrative, Laboratoire d'Innovation Thérapeutique, UMR 7200, CNRS-Université de Strasbourg, Faculté de Pharmacie, 74 route du Rhin, F-67401 Illkirch Cedex, France
| | - Cyril Antheaume
- Service Commun d'Analyse, UMR 7200, CNRS-Université de Strasbourg, Faculté de Pharmacie, 74 route du Rhin, F-67401 Illkirch Cedex, France
| | - Maria Zeniou
- Chimie-Biologie Intégrative, Laboratoire d'Innovation Thérapeutique, UMR 7200, CNRS-Université de Strasbourg, Faculté de Pharmacie, 74 route du Rhin, F-67401 Illkirch Cedex, France
| | - Dieudonné Emmanuel Pegnyemb
- Laboratoire de Pharmacochimie des Substances Naturelles, Département de Chimie Organique, Faculté de Sciences, Université de Yaoundé, BP 812 Yaoundé, Cameroon
| | - Dominique Guillaume
- UFR Médecine-Pharmacie, CNRS-UMR7312, 51 rue Cognacq Jay, 51100 Reims, France
| | - Hervé Chneiwess
- Neuroscience Paris Seine, IBPS, CNRS-UMR 8246, Inserm U1130, UPMC, 7 quai Saint Bernard, 75005 Paris, France
| | - Marie Claude Kilhoffer
- Chimie-Biologie Intégrative, Laboratoire d'Innovation Thérapeutique, UMR 7200, CNRS-Université de Strasbourg, Faculté de Pharmacie, 74 route du Rhin, F-67401 Illkirch Cedex, France
| | - Annelise Lobstein
- Pharmacognosie et Molécules Naturelles Bioactives, Laboratoire d'Innovation Thérapeutique, UMR 7200, CNRS-Université de Strasbourg, Faculté de Pharmacie, 74 route du Rhin, F-67401 Illkirch Cedex, France
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Cakova V, Urbain A, Antheaume C, Rimlinger N, Wehrung P, Bonté F, Lobstein A. Identification of phenanthrene derivatives in Aerides rosea (Orchidaceae) using the combined systems HPLC-ESI-HRMS/MS and HPLC-DAD-MS-SPE-UV-NMR. Phytochem Anal 2015; 26:34-39. [PMID: 25130411 DOI: 10.1002/pca.2533] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [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: 02/07/2014] [Revised: 05/07/2014] [Accepted: 06/22/2014] [Indexed: 06/03/2023]
Abstract
INTRODUCTION In our continued efforts to contribute to the general knowledge on the chemical diversity of orchids, we have decided to focus our investigations on the Aeridinae subtribe. Following our previous phytochemical study of Vanda coerulea, which has led to the identification of phenanthrene derivatives, a closely related species, Aerides rosea Lodd. ex Lindl. & Paxton, was chosen for investigation. OBJECTIVE To identify new secondary metabolites, and to avoid isolation of those already known, by means of the combined systems HPLC-DAD(diode-array detector) with high-resolution tandem mass spectrometry (HRMS/MS) and HPLC-DAD-MS-SPE(solid-phase extraction)-UV-NMR. METHODS A dereplication strategy was developed using a HPLC-DAD-HRMS/MS targeted method and applied to fractions from A. rosea stem extract. Characterisation of unknown minor compounds was then performed using the combined HPLC-DAD-MS-SPE-UV-NMR system. RESULTS The dereplication method allowed the characterisation of four compounds (gigantol, imbricatin, methoxycoelonin and coelonin), previously isolated from Vanda coerulea stem extract. The analyses of two fractions permitted the identification of five additional minor constituents including one phenanthropyran, two phenanthrene and two dihydrophenanthrene derivatives. The full set of NMR data of each compound was obtained from microgram quantities. CONCLUSION Nine secondary metabolites were characterised in A. rosea stems, utilising HPLC systems combined with high-resolution analytical systems. Two of them are newly described phenanthrene derivatives: aerosanthrene (5-methoxyphenanthrene-2,3,7-triol) and aerosin (3-methoxy-9,10-dihydro-2,5,7-phenanthrenetriol).
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Affiliation(s)
- Veronika Cakova
- University of Strasbourg, Faculty of Pharmacy, Laboratory of Pharmacognosy and Bioactive Natural Products, 74, route du Rhin, CS60024, 67400, Illkirch Graffenstaden, France; LVMH recherche, 185 avenue de Verdun, 45800, Saint Jean de Braye, France
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Ali Azouaou S, Emhemmed F, Idris-Khodja N, Lobstein A, Schini-Kerth V, Muller CD, Fuhrmann G. Selective ROS-dependent p53-associated anticancer effects of the hypoxoside derivative rooperol on human teratocarcinomal cancer stem-like cells. Invest New Drugs 2014; 33:64-74. [PMID: 25404486 DOI: 10.1007/s10637-014-0182-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 10/29/2014] [Indexed: 01/21/2023]
Abstract
Cancer stem cells (CSCs) are potential targets for innovative anticancer therapies that involve natural products with potential chemopreventive effects. We therefore analyzed the antineoplastic activity of rooperol, the aglycone of the plant-derived compound hypoxoside, on a model of Oct4-expressing cancer stem-like cell, i.e. the human embryonal carcinoma (EC) cell NT2/D1. Rooperol selectively inhibited the proliferation of NT2/D1 cells in a concentration-dependent manner and had no effect on either normal embryonic fibroblasts which are more restrictive pluripotent stem cells or on NCCIT p53-mutant EC cells. Accordingly, rooperol only eliminates colon carcinoma cells expressing p53. Rooperol treatment triggered cell death on NT2/D1 cells through the alteration of mitochondrial membrane potential and production of reactive oxygen species (ROS). Rooperol-induced apoptosis was associated with activation of p53 and concentration-dependent changes of the expression levels of both caspase 3 and poly ADP ribose polymerase type 1 cleaved subunits. These modifications were accompanied by a downregulation of Oct4 and its two partners involved in the maintenance of cell pluripotency and self-renewal, Nanog and Sox2.Treatment with intracellular membrane permeant O2 (-) scavengers prevented rooperol-induced apoptosis and upregulation of the expression of p53 and active caspase-3. Our findings indicate that rooperol mediates its growth inhibitory effects on CSCs via a mitochondrial redox-sensitive mechanism. We propose that abrogating the expression of the stemness regulators is a prerequisite for rooperol to fully exert its pro-apoptotic properties on wild-type p53-bearing CSCs.
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Affiliation(s)
- Sarah Ali Azouaou
- UMR 7213 CNRS, Laboratoire de Biophotonique et Pharmacologie, Faculté de Pharmacie, Université de Strasbourg, 74 route du Rhin, 67401, Illkirch, France
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27
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Abusnina A, Keravis T, Zhou Q, Justiniano H, Lobstein A, Lugnier C. Tumour growth inhibition and anti-angiogenic effects using curcumin correspond to combined PDE2 and PDE4 inhibition. Thromb Haemost 2014; 113:319-28. [PMID: 25230992 DOI: 10.1160/th14-05-0454] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Accepted: 08/13/2014] [Indexed: 01/04/2023]
Abstract
Vascular endothelial growth factor (VEGF) plays a major role in angiogenesis by stimulating endothelial cells. Increase in cyclic AMP (cAMP) level inhibits VEGF-induced endothelial cell proliferation and migration. Cyclic nucleotide phosphodiesterases (PDEs), which specifically hydrolyse cyclic nucleotides, are critical in the regulation of this signal transduction. We have previously reported that PDE2 and PDE4 up-regulations in human umbilical vein endothelial cells (HUVECs) are implicated in VEGF-induced angiogenesis and that inhibition of PDE2 and PDE4 activities prevents the development of the in vitro angiogenesis by increasing cAMP level, as well as the in vivo chicken embryo angiogenesis. We have also shown that polyphenols are able to inhibit PDEs. The curcumin having anti-cancer properties, the present study investigated whether PDE2 and PDE4 inhibitors and curcumin could have similar in vivo anti-tumour properties and whether the anti-angiogenic effects of curcumin are mediated by PDEs. Both PDE2/PDE4 inhibitor association and curcumin significantly inhibited in vivo tumour growth in C57BL/6N mice. In vitro, curcumin inhibited basal and VEGF-stimulated HUVEC proliferation and migration and delayed cell cycle progression at G0/G1, similarly to the combination of selective PDE2 and PDE4 inhibitors. cAMP levels in HUVECs were significantly increased by curcumin, similarly to rolipram (PDE4 inhibitor) and BAY-60-550 (PDE2 inhibitor) association, indicating cAMP-PDE inhibitions. Moreover, curcumin was able to inhibit VEGF-induced cAMP-PDE activity without acting on cGMP-PDE activity and to modulate PDE2 and PDE4 expressions in HUVECs. The present results suggest that curcumin exerts its in vitro anti-angiogenic and in vivo anti-tumour properties through combined PDE2 and PDE4 inhibition.
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Affiliation(s)
| | | | | | | | | | - Claire Lugnier
- Dr. Claire Lugnier, Université de Strasbourg, CNRS UMR 7213, Laboratoire de Biophotonique et Pharmacologie, Faculté de Pharmacie, 74 route du Rhin, CS 60024, 67401 Illkirch, France, Tel.: +33 3 68 85 41 01, Fax: +33 3 68 85 43 13, E-mail:
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Lobstein A, Marinier F. [Nursing care and essential oils in geriatrics]. Soins Gerontol 2014:29-32. [PMID: 25137964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Aromatherapy is a valuable complementary therapeutic tool which is increasingly being used in hospitals. Essential oils help to improve patients' quality of life. They can be used for well-being purposes as well in specific nursing procedures. Some services offer aromatherapy through diffusion, inhalation, massages or aromatic baths. The benefits for healthcare teams as well as for patients are undeniable. There is also a significant reduction in the consumption of certain drugs.
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Noungoue DT, Chaabi M, Ngouela S, Antheaume C, Boyom FF, Gut J, Rosenthal PJ, Lobstein A, Tsamo E. Antimalarial Compounds from the Stem Bark of Vismia laurentii. ACTA ACUST UNITED AC 2014; 64:210-4. [DOI: 10.1515/znc-2009-3-410] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A phytochemical study of the stem bark of Vismia laurentii resulted in the isolation of a tetracyclic triterpene, tirucalla-7,24-dien-3-one (1), and seven other known compounds: 3-geranyloxyemodin (2), vismiaquinone A (3), vismiaquinone B (4), bivismiaquinone (5), epifriedelinol (6), betulinic acid (7) and stigmasta-7,22-dien-3-ol (8). The structure of all these compounds was elucidated by spectroscopic means. The stem bark extract and compounds 1 and 3 showed good antimalarial activity against the W2 strain of Plasmodium falciparum.
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Affiliation(s)
- Diderot T. Noungoue
- Department of Organic Chemistry, Faculty of Science, TWAS Research Unit (TRU) of University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Mehdi Chaabi
- Laboratory of Pharmacognosy, LC1 UMR 7175, ULP, Faculty of Pharmacy, Strasbourg, France
| | - Silvère Ngouela
- Department of Organic Chemistry, Faculty of Science, TWAS Research Unit (TRU) of University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Cyril Antheaume
- Laboratory of NMR, LC1 IFR85, ULP, Faculty of Pharmacy, Strasbourg, France
| | - Fabrice F. Boyom
- Department of Biochemistry, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Jiri Gut
- Division of Infectious Diseases Department of Medicine, University of California, San Francisco, CA 94943, USA
| | - Philip J. Rosenthal
- Division of Infectious Diseases Department of Medicine, University of California, San Francisco, CA 94943, USA
| | - Annelise Lobstein
- Laboratory of Pharmacognosy, LC1 UMR 7175, ULP, Faculty of Pharmacy, Strasbourg, France
| | - Etienne Tsamo
- Department of Organic Chemistry, Faculty of Science, TWAS Research Unit (TRU) of University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
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Couic-Marinier F, Harnist F, Lobstein A. En savoir plus sur l’huile essentielle de Lavande officinale. Actualités Pharmaceutiques 2014. [DOI: 10.1016/j.actpha.2014.02.008] [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: 10/25/2022]
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Bonté F, Kuballa B, Lobstein A. [Augustin Delondre and Friedrich AuguIst Flückiger : an unpublished correspondence 1868-1869]. Rev Hist Pharm (Paris) 2014; 62:39-46. [PMID: 25668911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This article describes an unpublished correspondence between Augustin-Ambroise Delondre (1823- 1879), son of the famous pharmacist Augustin - Pierre Delondre and Friedrich August Flückiger, Swiss pharmacist (1828-1894), professor between 1873 to 1892 of the Chair in pharmacy at the university of Strasbourg and considered as the father of pharmacognosy. This set of 9 unique hand- written letters (1868 and 1869) allows to have an clearer idea of their scientific and human relations.
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Affiliation(s)
| | - Christian D. Muller
- Laboratoire d'Innovation Thérapeutique, UMR 7200 CNRS, Faculté de Pharmacie; Université de Strasbourg; France
| | - Annelise Lobstein
- Laboratoire d'Innovation Thérapeutique, UMR 7200 CNRS, Faculté de Pharmacie; Université de Strasbourg; France
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Couic-Marinier F, Lobstein A. Les huiles essentielles en pratique à l’officine. Actualités Pharmaceutiques 2013. [DOI: 10.1016/j.actpha.2013.02.008] [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: 10/27/2022]
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Gallé JB, Attioua B, Kaiser M, Rusig AM, Lobstein A, Vonthron-Sénécheau C. Eleganolone, a diterpene from the French marine alga Bifurcaria bifurcata inhibits growth of the human pathogens Trypanosoma brucei and Plasmodium falciparum. Mar Drugs 2013; 11:599-610. [PMID: 23442789 PMCID: PMC3705360 DOI: 10.3390/md11030599] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 01/18/2013] [Accepted: 02/07/2013] [Indexed: 11/17/2022] Open
Abstract
Organic extracts of 20 species of French seaweed have been screened against Trypanosoma brucei rhodesiense trypomastigotes, the parasite responsible for sleeping sickness. These extracts have previously shown potent antiprotozoal activities in vitro against Plasmodium falciparum and Leishmania donovani. The selectivity of the extracts was also evaluated by testing cytotoxicity on a mammalian L6 cell line. The ethyl acetate extract of the brown seaweed, Bifurcaria bifurcata, showed strong trypanocidal activity with a mild selectivity index (IC(50) = 0.53 µg/mL; selectivity index (SI) = 11.6). Bio-guided fractionation led to the isolation of eleganolone, the main diterpenoid isolated from this species. Eleganolone contributes only mildly to the trypanocidal activity of the ethyl acetate extract (IC(50) = 45.0 µM, SI = 4.0). However, a selective activity against P. falciparum erythrocytic stages in vitro has been highlighted (IC(50) = 7.9 µM, SI = 21.6).
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Affiliation(s)
- Jean-Baptiste Gallé
- UMR 7200 CNRS, Therapeutic Innovation Laboratory, Faculty of Pharmacy, University of Strasbourg, 64701 Illkirch, France; E-Mails: (J.-B.G.); (A.L.)
| | - Barthélémy Attioua
- Department of Material Structure Sciences and Technology, University of Cocody, 01 BP 582, Abidjan, Ivory Coast; E-Mail:
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute, 4002 Basel, Switzerland; E-Mail:
- University of Basel, Petersplatz 1, 4003 Basel, Switzerland
| | - Anne-Marie Rusig
- CNRS INEE-FRE3484 Marine Mollusks Biology and Associated Ecosystems, University of Caen Basse-Normandie, 14032 Caen Cedex, France; E-Mail:
| | - Annelise Lobstein
- UMR 7200 CNRS, Therapeutic Innovation Laboratory, Faculty of Pharmacy, University of Strasbourg, 64701 Illkirch, France; E-Mails: (J.-B.G.); (A.L.)
| | - Catherine Vonthron-Sénécheau
- UMR 7200 CNRS, Therapeutic Innovation Laboratory, Faculty of Pharmacy, University of Strasbourg, 64701 Illkirch, France; E-Mails: (J.-B.G.); (A.L.)
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Bréant L, Vonthron-Sénécheau C, Brelot L, Lobstein A. (10E,12E,14E)-9,16-Dioxoocta-deca-10,12,14-trienoic acid. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o2624. [PMID: 22969525 PMCID: PMC3435652 DOI: 10.1107/s1600536812027870] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Accepted: 06/19/2012] [Indexed: 11/10/2022]
Abstract
The title octa-deca-trienoic acid derivative, C(18)H(26)O(4), was isolated from Silene maritima With. (Caryophyllaceae), the first time this natural compound has been found in the Caryophyllales order. This fatty acid has an 18-carbon backbone with three double bonds on trans (E) conformation and two carbonyl. In the crystal, molecules are linked via pairs of O-H⋯O hydrogen bonds, forming inversion dimers.
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Attioua B, Yeo D, Lagnika L, Harisolo R, Antheaume C, Weniger B, Kaiser M, Lobstein A, Vonthron-Sénécheau C. In vitro antileishmanial, antiplasmodial and cytotoxic activities of a new ventiloquinone and five known triterpenes from Parinari excelsa. Pharm Biol 2012; 50:801-806. [PMID: 22472023 DOI: 10.3109/13880209.2011.633270] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
CONTEXT Parinari excelsa Sabine (Chrysobalanaceae) is an indigenous tree from West and Eastern Africa. This tree is used in Ivory Coast as an antimalaria remedy. OBJECTIVE The in vitro antiplasmodial and antileishmanial activities of the stem bark, the leaf and the major compounds from the stem bark were investigated. MATERIALS AND METHODS The leaves and stem bark from P. excelsa were separately collected, air-dried and powdered. Two extracts (methylene chloride and methanol) were realized for both powders. Every extract was tested for its antiplasmodial and antileishmanial activities. Only the stem bark crude extracts were fractionated by column chromatography and their major components were analyzed by NMR, HRESIMS and IR methods. The compounds were tested for their antiplasmodial and antileishmanial activities. RESULTS The comparison of the IC(50) values of the crude extracts were in this order: 3.41 (IC(50) of PeBMc) <4.10 (IC(50) of PeBMc) <4.42 (IC(50) of PeLMe) against P. falciparum and 5.19 (IC(50) of PeBMc) <12.32 (IC(50) of PeBMe) <19.33 (IC(50) of PeLMc) <32.37 (IC(50) of PeLMe) against L. donovani. The stem bark crude extracts were the most active against both parasites. Their fractionation leaded to a new ventiloquinone, five triterpenes and one chlorogenic acid. All these compounds were isolated for the first time from P. excelsa. High activities were observed with (3β)-3-hydroxyolean-12-en-28-oic acid (IC(50) = 8.2 µM) and 3β-hydroxyolean-5,12-dien-28-oic acid (IC(50) = 7.7 µM) against L. donovani. With the antiplasmodial activity, the best activity was observed with 16β-hydroxylupane-1,20(29)-dien-3-one (IC(50) = 28.3 µM). DISCUSSION AND CONCLUSION These findings demonstrated that the constituents of P. excelsa stem bark have in vitro antiplasmodial and antileishmanial activities.
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Affiliation(s)
- Barthélemy Attioua
- UFR Sciences des Structures de la Matière et Technologie, Université de Cocody-Abidjan, Côte d'Ivoire, Switzerland
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Wabo HK, Chabert P, Tane P, Noté O, Tala MF, Peluso J, Muller C, Kikuchi H, Oshima Y, Lobstein A. Labdane-type diterpenes and flavones from Dodonaea viscosa. Fitoterapia 2012; 83:859-63. [DOI: 10.1016/j.fitote.2012.03.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Revised: 03/07/2012] [Accepted: 03/10/2012] [Indexed: 10/28/2022]
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Sharif T, Alhosin M, Auger C, Minker C, Kim JH, Etienne-Selloum N, Bories P, Gronemeyer H, Lobstein A, Bronner C, Fuhrmann G, Schini-Kerth VB. Aronia melanocarpa juice induces a redox-sensitive p73-related caspase 3-dependent apoptosis in human leukemia cells. PLoS One 2012; 7:e32526. [PMID: 22412883 PMCID: PMC3297612 DOI: 10.1371/journal.pone.0032526] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Accepted: 01/30/2012] [Indexed: 11/19/2022] Open
Abstract
Polyphenols are natural compounds widely present in fruits and vegetables, which have antimutagenic and anticancer properties. The aim of the present study was to determine the anticancer effect of a polyphenol-rich Aronia melanocarpa juice (AMJ) containing 7.15 g/L of polyphenols in the acute lymphoblastic leukemia Jurkat cell line, and, if so, to clarify the underlying mechanism and to identify the active polyphenols involved. AMJ inhibited cell proliferation, which was associated with cell cycle arrest in G2/M phase, and caused the induction of apoptosis. These effects were associated with an upregulation of the expression of tumor suppressor p73 and active caspase 3, and a downregulation of the expression of cyclin B1 and the epigenetic integrator UHRF1. AMJ significantly increased the formation of reactive oxygen species (ROS), decreased the mitochondrial membrane potential and caused the release of cytochrome c into the cytoplasm. Treatment with intracellular ROS scavengers prevented the AMJ-induced apoptosis and upregulation of the expression of p73 and active caspase 3. The fractionation of the AMJ and the use of identified isolated compounds indicated that the anticancer activity was associated predominantly with chlorogenic acids, some cyanidin glycosides, and derivatives of quercetin. AMJ treatment also induced apoptosis of different human lymphoblastic leukemia cells (HSB-2, Molt-4 and CCRF-CEM). In addition, AMJ exerted a strong pro-apoptotic effect in human primary lymphoblastic leukemia cells but not in human normal primary T-lymphocytes. Thus, the present findings indicate that AMJ exhibits strong anticancer activity through a redox-sensitive mechanism in the p53-deficient Jurkat cells and that this effect involves several types of polyphenols. They further suggest that AMJ has chemotherapeutic properties against acute lymphoblastic leukemia by selectively targeting lymphoblast-derived tumor cells.
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Affiliation(s)
- Tanveer Sharif
- UMR 7213 CNRS, Laboratoire de Biophotonique et Pharmacologie, Faculté de Pharmacie, Université de Strasbourg, Illkirch, France
| | - Mahmoud Alhosin
- UMR 7213 CNRS, Laboratoire de Biophotonique et Pharmacologie, Faculté de Pharmacie, Université de Strasbourg, Illkirch, France
| | - Cyril Auger
- UMR 7213 CNRS, Laboratoire de Biophotonique et Pharmacologie, Faculté de Pharmacie, Université de Strasbourg, Illkirch, France
| | - Carole Minker
- UMR 7200 CNRS, Laboratoire d'Innovation Thérapeutique, Faculté de Pharmacie, Université de Strasbourg, Illkirch, France
| | - Jong-Hun Kim
- UMR 7213 CNRS, Laboratoire de Biophotonique et Pharmacologie, Faculté de Pharmacie, Université de Strasbourg, Illkirch, France
| | - Nelly Etienne-Selloum
- UMR 7213 CNRS, Laboratoire de Biophotonique et Pharmacologie, Faculté de Pharmacie, Université de Strasbourg, Illkirch, France
| | - Pierre Bories
- UMR 7104 CNRS/U 964 INSERM, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Université de Strasbourg, Illkirch, France
| | - Hinrich Gronemeyer
- UMR 7104 CNRS/U 964 INSERM, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Université de Strasbourg, Illkirch, France
| | - Annelise Lobstein
- UMR 7200 CNRS, Laboratoire d'Innovation Thérapeutique, Faculté de Pharmacie, Université de Strasbourg, Illkirch, France
| | - Christian Bronner
- UMR 7213 CNRS, Laboratoire de Biophotonique et Pharmacologie, Faculté de Pharmacie, Université de Strasbourg, Illkirch, France
| | - Guy Fuhrmann
- UMR 7213 CNRS, Laboratoire de Biophotonique et Pharmacologie, Faculté de Pharmacie, Université de Strasbourg, Illkirch, France
| | - Valérie B. Schini-Kerth
- UMR 7213 CNRS, Laboratoire de Biophotonique et Pharmacologie, Faculté de Pharmacie, Université de Strasbourg, Illkirch, France
- * E-mail:
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Hammoud L, Seghiri R, Benayache S, Mosset P, Lobstein A, Chaabi M, León F, Brouard I, Bermejo J, Benayache F. A new flavonoid and other constituents from Centaurea nicaeensis All. var. walliana M. Nat Prod Res 2011; 26:203-8. [PMID: 21815723 DOI: 10.1080/14786419.2010.534995] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A new flavone glucoside, apigenin 4'-(6″-methylglucuronide) (1), together with six known compounds, cirsilineol, jaceosidin, melitensin, apigenin, apigenin 7-(6″-methylglucuronide) and prunasin, were isolated from the ethanolic extract of the aerial parts of Centaurea nicaeensis All. var. walliana M. (Asteraceae) collected from Souk-Ahras, eastern Algeria. The structures were established by spectral analysis, mainly HRESI-MS, UV and 2D-NMR experiments (COSY, HSQC and HMBC).
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Affiliation(s)
- Leila Hammoud
- Laboratoire de Phytochimie et Analyses Physico-Chimiques et Biologiques, Université Mentouri, Route de Aïn El Bey, 25 000 Constantine, Algeria
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Maldonado-Celis ME, Bousserouel S, Gossé F, Lobstein A, Raul F. Differential activation of Fas (CD95) mediated apoptosis by apple procyanidins in human colon cancer cells SW480 and their derived metastatic cells SW620. Colomb Med (Cali) 2011. [DOI: 10.25100/cm.v42i2.767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Introduction: We investigated the effects of apple procyanidins (Pcy), oligomers of catechins and epicatechins on Fas receptor expression and function in human colon adenocarcinoma cells (SW480) and in their derived metastatic cells (SW620).
Methods: Pcy were characterized by reverse-phase HPLC. Cell death, Fas proteins, DNA fragmentation, and mitochondrial membrane potential were analyzed by flow cytometry. Fas mRNA was analyzed by RT-PCR in real time.
Results: Pcy up-regulated the expression of the Fas receptor at the cell surface of both cell lines but activated Fas gene transcription only in SW620 cells. In SW480 cells, Pcy combined with Fas agonist CH-11 enhanced Fas-mediated apoptosis involving the loss of mitochondrial membrane potential and DNA fragmentation, which were abrogated by the antagonist antibody of Fas receptor, the anti-Fas ZB4. On the contrary, in SW620 cells, CH-11 was not able to enhance Pcy-triggered apoptosis indicating that Fas receptor-mediated apoptosis was not activated in these cells despite an up-regulation of Fas receptor gene expression. However, it was observed in SW620 cells that Pcy activated the Fas receptor-mediated apoptotic pathway after a specific blockage of TRAIL-death DR4/DR5 receptors.
Conclusions: The present data showed that Pcy were able to activate the Fas receptor apoptotic pathway in SW480 cells and favored a cross-talk between TRAIL and Fas receptors in SW620 cells because specific blocking of TRAIL death receptors favored activation of the Fas receptor-mediated apoptosis. These important data may allow the emergence of new therapeutic protocols targeting death receptors against resistant metastatic cells.
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Simmler C, Antheaume C, André P, Bonté F, Lobstein A. Glucosyloxybenzyl eucomate derivatives from Vanda teres stimulate HaCaT cytochrome c oxidase. J Nat Prod 2011; 74:949-955. [PMID: 21510636 DOI: 10.1021/np1006636] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Eucomic acid [(2R)-2-(p-hydroxybenzyl)malic acid)] (1) and three new glucopyranosyloxybenzyl eucomate derivatives, vandaterosides I (2), II (3), and III (4), were isolated and identified from the stems of Vanda teres. Their cellular antiaging properties were evaluated in a human immortalized keratinocyte cell line (HaCaT) by monitoring their effect on cytochrome c oxidase activity, implicated in mitochondrial respiratory function and cellular energy production. Eucomic acid (1) and vandateroside II (3) increased cytochrome c oxidase activity and/or expression, without enhancing cellular mitochondrial content. These two V. teres biomarkers apparently contributed to stimulate respiratory functions in keratinocytes. Since aging and its pathologies may be ascribed to a decline in mitochondrial functions, these biomarkers have the potential to become new natural ingredients for antiaging preparations to remedy age-related disorders such as skin aging.
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Bonté F, Simmler C, Lobstein A, Pellicier F, Cauchard JH. Action d’un extrait de Vanda coerulea sur la sénescence de fibroblastes cutanés. Annales Pharmaceutiques Françaises 2011; 69:177-81. [DOI: 10.1016/j.pharma.2011.02.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Revised: 02/14/2011] [Accepted: 02/25/2011] [Indexed: 10/18/2022]
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Lamy V, Bousserouel S, Gossé F, Minker C, Lobstein A, Raul F. Lupulone triggers p38 MAPK-controlled activation of p53 and of the TRAIL receptor apoptotic pathway in human colon cancer-derived metastatic cells. Oncol Rep 2011; 26:109-14. [PMID: 21519792 DOI: 10.3892/or.2011.1273] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Accepted: 03/10/2011] [Indexed: 11/05/2022] Open
Abstract
We previously reported that the chemopreventive agent lupulone induces apoptosis through activation of the extrinsic pathway via TRAIL DR4/DR5 death receptors overcoming SW620 cell resistance to TRAIL. However, the underlying molecular mechanisms remain unknown. Since the mitogen-activated protein kinases (MAPKs), Jun N-terminal kinase (JNK), extracellular signal-regulated kinase (ERK) and p38 control fundamental cellular processes such as apoptosis, we determined the role of these MAPKs in lupulone-triggered apoptosis. We analyzed the effects of JNK, ERK and p38 MAPK inhibitors on lupulone-induced apoptosis by flow cytometry using specific antibodies and real-time RT-PCR. Our data showed that among the MAPKs, only p38 played a major role in lupulone-triggered apoptosis. In contrast to JNK and ERK inhibition, the specific inactivation of p38 inhibited the lupulone-triggered up-regulation of p53 and TRAIL-death receptor DR4/DR5 expression, and prevented DNA fragmentation. Lupulone treatment enhanced the expression of the anti-apoptotic Mcl-1 protein by 60% favoring the preservation of mitochondrial integrity. The inactivation of p38 initiated a 50% reduction in Mcl-1, Bcl-2 and Bax expression without changing the Mcl-1/Bax ratio suggesting that p38 was not involved in the protective effect of lupulone on mitochondria. Our data support the view that the lupulone-triggered enhanced expression of p38 plays a major role in the activation of p53 and of the TRAIL-death receptor apoptotic pathway in SW620 human colon cancer-derived metastatic cells.
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Affiliation(s)
- Virginie Lamy
- Unit of Physiopathology and Translational Research EA 4438, University of Strasbourg, Faculty of Medicine, Strasbourg, France
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Bousserouel S, Lamy V, Gossé F, Lobstein A, Marescaux J, Raul F. Early modulation of gene expression used as a biomarker for chemoprevention in a preclinical model of colon carcinogenesis. Pathol Int 2010; 61:80-7. [DOI: 10.1111/j.1440-1827.2010.02621.x] [Citation(s) in RCA: 9] [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: 02/01/2023]
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Kuhn I, Kellenberger E, Said-Hassane F, Villa P, Rognan D, Lobstein A, Haiech J, Hibert M, Schuber F, Muller-Steffner H. Identification by high-throughput screening of inhibitors of Schistosoma mansoni NAD+ catabolizing enzyme. Bioorg Med Chem 2010; 18:7900-10. [DOI: 10.1016/j.bmc.2010.09.041] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2010] [Revised: 09/14/2010] [Accepted: 09/16/2010] [Indexed: 10/19/2022]
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Tantangmo F, Lenta BN, Ngouela S, Kamdem LM, Weniger B, Tsamo E, Lobstein A, Vonthron-Sénécheau C. New Sphingolipids and Other Constituents of Pancovia laurentii. Helv Chim Acta 2010. [DOI: 10.1002/hlca.201000078] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Simmler C, Antheaume C, Lobstein A. Antioxidant biomarkers from Vanda coerulea stems reduce irradiated HaCaT PGE-2 production as a result of COX-2 inhibition. PLoS One 2010; 5:e13713. [PMID: 21060890 PMCID: PMC2965657 DOI: 10.1371/journal.pone.0013713] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2010] [Accepted: 09/25/2010] [Indexed: 11/18/2022] Open
Abstract
Background In our investigations towards the isolation of potentially biologically active constituents from Orchidaceae, we carried out phytochemical and biological analyses of Vanda species. A preliminary biological screening revealed that Vanda coerulea (Griff. ex. Lindl) crude hydro-alcoholic stem extract displayed the best DPPH /•OH radical scavenging activity and in vitro inhibition of type 2 prostaglandin (PGE-2) release from UVB (60 mJ/cm2) irradiated HaCaT keratinocytes. Principal Findings Bio-guided fractionation and phytochemical analysis led to the isolation of five stilbenoids: imbricatin (1) methoxycoelonin (2) gigantol (3) flavidin (4) and coelonin (5). Stilbenoids (1–3) were the most concentrated in crude hydro-alcoholic stem extract and were considered as Vanda coerulea stem biomarkers. Dihydro-phenanthropyran (1) and dihydro-phenanthrene (2) displayed the best DPPH/•OH radical scavenging activities as well as HaCaT intracellular antioxidant properties (using DCFH-DA probe: IC50 8.8 µM and 9.4 µM, respectively) compared to bibenzyle (3) (IC50 20.6 µM). In turn, the latter showed a constant inhibition of PGE-2 production, stronger than stilbenoids (1) and (2) (IC50 12.2 µM and 19.3 µM, respectively). Western blot analysis revealed that stilbenoids (1–3) inhibited COX-2 expression at 23 µM. Interestingly, stilbenoids (1) and (2) but not (3) were able to inhibit human recombinant COX-2 activity. Conclusions Major antioxidant stilbenoids (1–3) from Vanda coerulea stems displayed an inhibition of UVB-induced COX-2 expression. Imbricatin (1) and methoxycoelonin (2) were also able to inhibit COX-2 activity in a concentration-dependent manner thereby reducing PGE-2 production from irradiated HaCaT cells. Our studies suggest that stilbenoids (1–3) could be potentially used for skin protection against the damage caused by UVB exposure.
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