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Nocedo-Mena D, Arrasate S, Garza-González E, Rivas-Galindo VM, Romo-Mancillas A, Munteanu CR, Sotomayor N, Lete E, Barbolla I, Martín CA, Del Rayo Camacho-Corona M. Molecular docking, SAR analysis and biophysical approaches in the study of the antibacterial activity of ceramides isolated from Cissus incisa. Bioorg Chem 2021; 109:104745. [PMID: 33640629 DOI: 10.1016/j.bioorg.2021.104745] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/09/2021] [Accepted: 02/10/2021] [Indexed: 12/11/2022]
Abstract
The developing of antibacterial resistance is becoming in crisis. In this sense, natural products play a fundamental role in the discovery of antibacterial agents with diverse mechanisms of action. Phytochemical investigation of Cissus incisa leaves led to isolation and characterization of the ceramides mixture (1): (8E)-2-(tritriacont-9-enoyl amino)-1,3,4-octadecanetriol-8-ene (1-I); (8E)-2-(2',3'-dihydroxyoctacosanoyl amino)-1,3,4-octadecanetriol-8-ene (1-II); (8E)-2-(2'-hydroxyheptacosanoyl amino)-1,3,4-octadecanetriol-8-ene (1-III); and (8E)-2-(-2'-hydroxynonacosanoyl amino)-1,3,4-octadecanetriol-8-ene (1-IV). Until now, this is the first report of the ceramides (1-I), (1-II), and (1-IV). The structures were elucidated using NMR and mass spectrometry analyses. Antibacterial activity of ceramides (1) and acetylated derivates (2) was evaluated against nine multidrug-resistant bacteria by Microdilution method. (1) showed the best results against Gram-negatives, mainly against carbapenems-resistant Acinetobacter baumannii with MIC = 50 μg/mL. Structure-activity analysis and molecular docking revealed interactions between plant ceramides with membrane proteins, and enzymes associated with biological membranes of Gram-negative bacteria, through hydrogen bonding of functional groups. Vesicular contents release assay showed the capacity of (1) to disturb membrane permeability detected by an increase of fluorescence probe over time. The membrane disruption is not caused for ceramides lytic action on cell membranes, according in vitro hemolyticactivity results. Combining SAR analysis, bioinformatics and biophysical techniques, and also experimental tests, it was possible to explain the antibacterial action of these natural ceramides.
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Affiliation(s)
- Deyani Nocedo-Mena
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Av. Universidad S/N, Ciudad Universitaria, 66451 San Nicolás de los Garza, Nuevo León, Mexico; University of the Basque Country UPV/EHU, Department of Organic Chemistry II, 48940 Leioa, Spain
| | - Sonia Arrasate
- University of the Basque Country UPV/EHU, Department of Organic Chemistry II, 48940 Leioa, Spain
| | - Elvira Garza-González
- Universidad Autónoma de Nuevo León, Servicio de Gastroenterología, Hospital Universitario "Dr. José Eleuterio González", Av. Gonzalitos and Madero S/N, Colonia Mitras Centro, 64460 Monterrey, Nuevo León, Mexico
| | - Verónica M Rivas-Galindo
- Universidad Autónoma de Nuevo León, Facultad de Medicina, Av. Gonzalitos and Madero S/N, Colonia Mitras Centro, 64460 Monterrey, Nuevo León, Mexico
| | - Antonio Romo-Mancillas
- Universidad Autónoma de Querétaro, Facultad de Ciencias Químicas, Centro Universitario, Cerro de las Campanas, 76010 Querétaro, Mexico
| | - Cristian R Munteanu
- University of A Coruna, Computer Science Faculty, 15071 A Coruña, Spain; Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), 15006 A Coruña, Spain; Centro de Investigación en Tecnologías de la Información y las Comunicaciones (CITIC), Campus de Elviña s/n, 15071 A Coruña, Spain
| | - Nuria Sotomayor
- University of the Basque Country UPV/EHU, Department of Organic Chemistry II, 48940 Leioa, Spain
| | - Esther Lete
- University of the Basque Country UPV/EHU, Department of Organic Chemistry II, 48940 Leioa, Spain
| | - Iratxe Barbolla
- University of the Basque Country UPV/EHU, Department of Organic Chemistry II, 48940 Leioa, Spain
| | - César A Martín
- Biofisika Institute (UPV/EHU, CSIC), 48940, Leioa, Spain; University of the Basque Country, UPV/EHU, Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, 48940 Leioa, Spain.
| | - María Del Rayo Camacho-Corona
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Av. Universidad S/N, Ciudad Universitaria, 66451 San Nicolás de los Garza, Nuevo León, Mexico.
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