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Rosas-Ramírez D, Arreguín-Espinosa R, Escandón-Rivera S, Andrade-Cetto A, Mata-Torres G, Pérez-Solís R. Identification of Hypoglycemic Glycolipids from Ipomoea murucoides by Affinity-Directed Fractionation, In Vitro, In Silico and Dynamic Light Scattering Analysis. Plants (Basel) 2024; 13:644. [PMID: 38475490 DOI: 10.3390/plants13050644] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/08/2024] [Accepted: 02/19/2024] [Indexed: 03/14/2024]
Abstract
In the pursuit of identifying the novel resin glycoside modulators glucose-6-phosphatase and α-glucosidase enzymes, associated with blood sugar regulation, methanol-soluble extracts from the flowers of Ipomoea murucoides (cazahuate, Nahuatl), renowned for its abundance of glycolipids, were employed. The methanol-soluble extracts were fractionated by applying the affinity-directed method with glucose-6-phosphatase enzymes from a rat's liver and α-glucosidase enzymes from its intestines. Mass spectrometry and nuclear magnetic resonance were employed to identify the high-affinity compound as a free ligand following the release from the enzymatic complex. Gel permeation through a spin size-exclusion column allowed the separated high-affinity molecules to bind to glucose-6-phosphatase and α-glucosidase enzymes in solution, which led to the identification of some previously reported resin glycosides in the flowers of cazahuate, where a glycolipid mainly structurally related to murucoidin XIV was observed. In vitro studies demonstrated the modulating properties of resin glycosides on the glucose-6-phosphatase enzyme. Dynamic light scattering revealed conformational variations induced by resin glycosides on α-glucosidase enzyme, causing them to become more compact, akin to observations with the positive control, acarbose. These findings suggest that resin glycosides may serve as a potential source for phytotherapeutic agents with antihyperglycemic properties.
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Affiliation(s)
- Daniel Rosas-Ramírez
- Departamento de Química de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior s/n, Coyoacán, Ciudad Universitaria, Mexico City 04510, Mexico
| | - Roberto Arreguín-Espinosa
- Departamento de Química de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior s/n, Coyoacán, Ciudad Universitaria, Mexico City 04510, Mexico
| | - Sonia Escandón-Rivera
- Departamento de Biología Celular, Facultad de Ciencias, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior s/n, Coyoacán, Ciudad Universitaria, Mexico City 04510, Mexico
| | - Adolfo Andrade-Cetto
- Departamento de Biología Celular, Facultad de Ciencias, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior s/n, Coyoacán, Ciudad Universitaria, Mexico City 04510, Mexico
| | - Gerardo Mata-Torres
- Departamento de Biología Celular, Facultad de Ciencias, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior s/n, Coyoacán, Ciudad Universitaria, Mexico City 04510, Mexico
| | - Ricardo Pérez-Solís
- Departamento de Química de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior s/n, Coyoacán, Ciudad Universitaria, Mexico City 04510, Mexico
- Departamento de Ingenieria Mecatrónica, Tecnológico Nacional de México, Instituto Tecnológico Superior de Atlixco, Heliotropo 1201, Unidad 8 Norte Nueva Xalpatlaco, Vista Hermosa, Atlixco 74218, Mexico
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León-Rivera I, Del Río-Portilla F, Enríquez RG, Rangel-López E, Villeda J, Rios MY, Navarrete-Vázquez G, Hurtado-Días I, Guzmán-Valdivieso U, Núñez-Urquiza V, Escobedo-Martínez C. Hepta-, hexa-, penta-, tetra-, and trisaccharide resin glycosides from three species of Ipomoea and their antiproliferative activity on two glioma cell lines. Magn Reson Chem 2017; 55:214-223. [PMID: 27370528 DOI: 10.1002/mrc.4476] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 06/17/2016] [Accepted: 06/23/2016] [Indexed: 06/06/2023]
Abstract
Six new partially acylated resin glycosides were isolated from convolvulin of Ipomoea purga, Ipomoea stans, and Ipomoea murucoides (Convolvulaceae). The structures of compounds 1-6 were elucidated by a combination of NMR spectroscopy and mass spectrometry. The structure of jalapinoside B (1) consists of a hexasaccharide core bonded to an 11-hydroxytetradecanoic (convolvulinic) acid forming a macrolactone acylated by a 2-methylbutanoyl, a 3-hydroxy-2-methylbutanoyl, and a quamoclinic acid B units. Purginoic acid A (2) contains a hexasaccharide core bonded to a convolvulinic acid acylated by a 3-hydroxy-2-methylbutanoyl unit. Stansin A (4) is an ester-type heterodimer, and consists of two stansoic acid A (3) units, acylated by 2-methylbutanoic and 3-hydroxy-2-methylbutanoic acids. The site of lactonization was located at C-3 of Rhamnose, and the position for the ester linkage of the monomeric unit B on the macrolactone unit A was established as C-4 of the terminal rhamnose. Compounds 5 and 6 are glycosidic acids. Murucinic acid II (5) is composed of a pentasaccharide core bonded to an 11-hydroxyhexadecanoic (jalapinolic) acid, acylated by an acetyl unit. Stansinic acid I (6) is a tetrasaccharide core bonded to a jalapinolic acid, acylated by 2-methylbutanoyl and 3-hydroxy-2-methylbutanoyl units. Preliminary testing showed the cytotoxicity of compounds 1-6 toward OVCAR and UISO-SQC-1 cancer cell lines. In addition, compound 1 showed an antiproliferative activity on glioma C6 and RG2 tumor cell lines. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Ismael León-Rivera
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Estados Unidos Mexicanos
| | - Federico Del Río-Portilla
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México, Estados Unidos Mexicanos
| | - Raúl G Enríquez
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México, Estados Unidos Mexicanos
| | - Edgar Rangel-López
- Laboratorio de Amino Ácidos Excitadores, Instituto Nacional de Neurología y Neurocirugía, Ciudad de México, Estados Unidos Mexicanos
| | - Juana Villeda
- Laboratorio de Patología, Instituto Nacional de Neurología y Neurocirugía, Ciudad de México, Estados Unidos Mexicanos
| | - María Yolanda Rios
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Estados Unidos Mexicanos
| | - Gabriel Navarrete-Vázquez
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Estados Unidos Mexicanos
| | - Israel Hurtado-Días
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Estados Unidos Mexicanos
| | - Ulises Guzmán-Valdivieso
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Estados Unidos Mexicanos
| | - Verónica Núñez-Urquiza
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, Estados Unidos Mexicanos
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Lira-De León KI, Ramírez-Mares MV, Sánchez-López V, Ramírez-Lepe M, Salas-Coronado R, Santos-Sánchez NF, Valadez-Blanco R, Hernández-Carlos B. Effect of crude plant extracts from some Oaxacan flora on two deleterious fungal phytopathogens and extract compatibility with a biofertilizer strain. Front Microbiol 2014; 5:383. [PMID: 25147544 PMCID: PMC4122911 DOI: 10.3389/fmicb.2014.00383] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 07/09/2014] [Indexed: 11/13/2022] Open
Abstract
The antimicrobial activity of 12 plant extracts was tested against the phytopathogens Alternaria alternata and Fusarium solani. In addition, the compatibility of the extracts toward Bacillus liqueniformis, a biofertilizer and a non-target microorganism, was assessed. Plants tested belong to the Euphorbiaceae, Asteraceae, Crassulaceae, Rubiaceae, Convolvulaceae, Verbenaceae, Orchidaceae, Nyctaginaceae, Boraginaceae, and Tiliaceae families and were collected in the State of Oaxaca. The antifungal activity of the plant extracts (50-100 mg/mL) against A. alternata and F. solani, was determined by measuring the mycelium radial growth and obtaining the minimum inhibitory concentration (MIC) of fungal growth. In addition, with the aim of finding plant extracts which are compatible with a B. licheniformis biofertilizer strain and to test the non-toxic nature of the treatments, the toxicity of the extracts toward this strain was evaluated using the agar diffusion method. Azoxystrobin (12 μg) and chloramphenicol (30 μg) were used as positive controls for the pathogens and for the non-target bacteria, respectively. Plant extracts inhibited fungal growth in the ranges of 0.76-56.17% against F. solani and 2.02-69.07% against A. alternata. The extracts of Acalypha subviscida, Ipomoea murucoides, Tournefortia densiflora and Lantana achyranthifolia showed MIC values between 5.77-12.5 mg/mL for at least one of the fungal species. The best treatment, Adenophyllum aurantium, exhibited a maximum inhibition for both F. solani (56.17%, MIC = 7.78 mg/mL) and A. alternata (68.64% MIC = 7.78 mg/mL), and resulted innocuous toward B. licheniformis. Therefore, this plant has an outstanding potential for the agroecological control of fungal phytopathogens in industrial crops.
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Affiliation(s)
| | | | | | - Mario Ramírez-Lepe
- Unidad de Investigación y Desarrollo en Alimentos, Instituto Tecnológico de VeracruzVeracruz, México
| | - Raúl Salas-Coronado
- Instituto de Agroindustrias, Universidad Tecnológica de la MixtecaHuajuapan de León, México
| | | | - Rogelio Valadez-Blanco
- Instituto de Agroindustrias, Universidad Tecnológica de la MixtecaHuajuapan de León, México
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Corona-Castañeda B, Chérigo L, Fragoso-Serrano M, Gibbons S, Pereda-Miranda R. Modulators of antibiotic activity from Ipomoea murucoides. Phytochemistry 2013; 95:277-283. [PMID: 23920226 DOI: 10.1016/j.phytochem.2013.07.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [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: 05/07/2013] [Revised: 07/07/2013] [Accepted: 07/10/2013] [Indexed: 06/02/2023]
Abstract
Reinvestigation of the CHCl3-soluble extract from the flowers of Ipomoea murucoides, through preparative-scale recycling HPLC, yielded three pentasaccharides of 11-hydroxyhexadecanoic acid, murucoidins XVII-XIX, in addition to the known murucoidin III and V, all of which were characterized by NMR spectroscopy and mass spectrometry. These compounds were found to be macrolactones of the known pentasaccharides simonic acid B and operculinic acid A. The acylating groups corresponded to acetic, (2S)-methyl-butyric, (E)-cinnamic and octanoic acids. The esterification sites were established at the C-2 of the second rhamnose and C-3 and C-4 of the third rhamnose. The aglycone lactonization was placed at C-2 or C-3 of the first rhamnose. Bioassays for modulation of antibiotic activity were performed against multidrug-resistant strains of Staphylococcus aureus, Escherichia coli Rosetta-gami, and two nosocomial pathogens: Salmonella enterica sv. Typhi and Shigella flexneri. The tested glycolipids did not act as cytotoxic (IC50>4 μg/mL) nor as antimicrobial (MIC>128 μg/mL) agents. However, they exerted a potentiation effect on clinically useful antibiotics against the tested bacteria by increasing their antibiotic susceptibility up to four-fold at concentrations of 25 μg/mL.
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Affiliation(s)
- Berenice Corona-Castañeda
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City 04510DF, Mexico
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