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Juárez-Cepeda J, Valenzuela O, Garibay-Valdez E, Velazquez C, Garibay-Escobar A. Gene expression during the development of Mycobacterium smegmatis biofilms on hydroxyapatite surfaces. Int Microbiol 2024; 27:257-263. [PMID: 37311924 DOI: 10.1007/s10123-023-00385-7] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/19/2023] [Accepted: 05/31/2023] [Indexed: 06/15/2023]
Abstract
Bacterial biofilms are a consortium of bacteria that are strongly bound to each other and the surface on which they developed irreversibly. Bacteria can survive adverse environmental conditions and undergo changes when transitioning from a planktonic form to community cells. The process of mycobacteria adhesion is complex, involving characteristics and properties of bacteria, surfaces, and environmental factors; therefore, the formation of different biofilms is possible. Cell wall-, lipid-, and lipid transporter-related genes (glycopeptidolipids, GroEL1, protein kinase) are important in mycobacterial biofilm development. We investigated gene expression during in vitro development of Mycobacterium smegmatis biofilms on a hydroxyapatite (HAP) surface. Biofilm formation by M. smegmatis cells was induced for 1, 2, 3, and 5 days on the HAP surface. Mycobacteria on polystyrene generated an air-liquid interface biofilm, and on the fifth day, it increased by 35% in the presence of HAP. Six genes with key roles in biofilm formation were analyzed by real-time RT‒qPCR during the biofilm formation of M. smegmatis on both abiotic surfaces. The expression of groEL1, lsr2, mmpL11, mps, pknF, and rpoZ genes during biofilm formation on the HAP surface did not exhibit significant changes compared to the polystyrene surface. These genes involved in biofilm formation are not affected by HAP.
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Affiliation(s)
- Jacqueline Juárez-Cepeda
- Departmento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas S/N, 83000, Hermosillo, Sonora, México
| | - Olivia Valenzuela
- Departmento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas S/N, 83000, Hermosillo, Sonora, México
| | - Estefanía Garibay-Valdez
- Centro de Investigación en Alimentación y Desarrollo, A. C. Km 0.6 Carretera a La Victoria, Hermosillo, Sonora, México
| | - Carlos Velazquez
- Departmento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas S/N, 83000, Hermosillo, Sonora, México
| | - Adriana Garibay-Escobar
- Departmento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas S/N, 83000, Hermosillo, Sonora, México.
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Niño-Padilla EI, Espitia C, Velazquez C, Alday E, Silva-Campa E, Burgara-Estrella A, Enciso-Moreno JA, Valenzuela O, Astiazarán-García H, Garibay-Escobar A. Antimycobacterial Precatorin A Flavonoid Displays Antibiofilm Activity against Mycobacterium bovis BCG. ACS Omega 2023; 8:40665-40676. [PMID: 37929145 PMCID: PMC10621015 DOI: 10.1021/acsomega.3c05703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 11/07/2023]
Abstract
The aim of this study was to evaluate the potential antibiofilm activity of Rhynchosia precatoria (R. precatoria) compounds over Mycobacterium bovis BCG (M. bovis BCG) as a model for Mycobacterium tuberculosis (Mtb). We evaluated the antibiofilm activity as the ability to both inhibit biofilm formation and disrupt preformed biofilms (bactericidal) of R. precatoria compounds, which have been previously described as being antimycobacterials against Mtb. M. bovis BCG developed air-liquid interface biofilms with surface attachment ability and drug tolerance. Of the R. precatoria extracts and compounds that were tested, precatorin A (PreA) displayed the best biofilm inhibitory activity, as evaluated by biofilm biomass quantification, viable cell count, and confocal and atomic force microscopy procedures. Furthermore, its combination with isoniazid at subinhibitory concentrations inhibited M. bovis BCG biofilm formation. Nonetheless, neither PreA nor the extract showed bactericidal effects. PreA is the R. precatoria compound responsible for biofilm inhibitory activity against M. bovis BCG.
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Affiliation(s)
- Esmeralda Ivonne Niño-Padilla
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - Clara Espitia
- Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán 04510, Ciudad de México, México
| | - Carlos Velazquez
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - Efrain Alday
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - Erika Silva-Campa
- Departamento de Investigación en Física, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - Alexel Burgara-Estrella
- Departamento de Investigación en Física, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - José Antonio Enciso-Moreno
- Facultad de Química, Universidad Autónoma de Querétaro, Centro Universitario s/n, Cerro de las Campanas, Santiago de Querétaro 76010, Querétaro, México
| | - Olivia Valenzuela
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - Humberto Astiazarán-García
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - Adriana Garibay-Escobar
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
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Vazquez E, Lipovka Y, Cervantes-Arias A, Garibay-Escobar A, Haby MM, Queiroga FL, Velazquez C. Canine Mammary Cancer: State of the Art and Future Perspectives. Animals (Basel) 2023; 13:3147. [PMID: 37835752 PMCID: PMC10571550 DOI: 10.3390/ani13193147] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 09/21/2023] [Accepted: 09/29/2023] [Indexed: 10/15/2023] Open
Abstract
Mammary cancer is the most frequently diagnosed neoplasia in women and non-spayed female dogs and is one of the leading causes of death in both species. Canines develop spontaneous mammary tumors that share a significant number of biological, clinical, pathological and molecular characteristics with human breast cancers. This review provides a detailed description of the histological, molecular and clinical aspects of mammary cancer in canines; it discusses risk factors and currently available diagnostic and treatment options, as well as remaining challenges and unanswered questions. The incidence of mammary tumors is highly variable and is impacted by biological, pathological, cultural and socioeconomic factors, including hormonal status, breed, advanced age, obesity and diet. Diagnosis is mainly based on histopathology, although several efforts have been made to establish a molecular classification of canine mammary tumors to widen the spectrum of treatment options, which today rely heavily on surgical removal of tumors. Lastly, standardization of clinical study protocols, development of canine-specific biological tools, establishment of adequate dog-specific disease biomarkers and identification of targets for the development of new therapies that could improve survival and have less adverse effects than chemotherapy are among the remaining challenges.
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Affiliation(s)
- Eliza Vazquez
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo 83000, Mexico; (E.V.); (Y.L.); (A.G.-E.); (M.M.H.)
| | - Yulia Lipovka
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo 83000, Mexico; (E.V.); (Y.L.); (A.G.-E.); (M.M.H.)
| | - Alejandro Cervantes-Arias
- Department of Small Animal Medicine and Surgery, Small Animal Teaching Hospital, The National University of Mexico (UNAM), Ciudad Universitaria, Investigación Científica 3000, Coyoacán, Mexico City 04360, Mexico;
| | - Adriana Garibay-Escobar
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo 83000, Mexico; (E.V.); (Y.L.); (A.G.-E.); (M.M.H.)
| | - Michelle M. Haby
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo 83000, Mexico; (E.V.); (Y.L.); (A.G.-E.); (M.M.H.)
| | - Felisbina Luisa Queiroga
- CECAV—Animal and Veterinary Research Center, University of Trás-os-Montes and Alto Douro, 5001-801 Vila Real, Portugal
| | - Carlos Velazquez
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo 83000, Mexico; (E.V.); (Y.L.); (A.G.-E.); (M.M.H.)
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Mendez-Encinas MA, Valencia D, Ortega-García J, Carvajal-Millan E, Díaz-Ríos JC, Mendez-Pfeiffer P, Soto-Bracamontes CM, Garibay-Escobar A, Alday E, Velazquez C. Anti-Inflammatory Potential of Seasonal Sonoran Propolis Extracts and Some of Their Main Constituents. Molecules 2023; 28:molecules28114496. [PMID: 37298970 DOI: 10.3390/molecules28114496] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 05/27/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
Biological properties of Sonoran propolis (SP) are influenced by harvest time. Caborca propolis showed cellular protective capacity against reactive oxygen species, which might be implicated in anti-inflammatory effects. However, the anti-inflammatory activity of SP has not been investigated so far. This study investigated the anti-inflammatory activity of previously characterized seasonal SP extracts (SPE) and some of their main constituents (SPC). The anti-inflammatory activity of SPE and SPC was evaluated by measuring nitric oxide (NO) production, protein denaturation inhibition, heat-induced hemolysis inhibition, and hypotonicity-induced hemolysis inhibition. SPE from spring, autumn, and winter showed a higher cytotoxic effect on RAW 264.7 cells (IC50: 26.6 to 30.2 µg/mL) compared with summer extract (IC50: 49.4 µg/mL). SPE from spring reduced the NO secretion to basal levels at the lowest concentration tested (5 µg/mL). SPE inhibited the protein denaturation by 79% to 100%, and autumn showed the highest inhibitory activity. SPE stabilized erythrocyte membrane against heat-induced and hypotonicity-induced hemolysis in a concentration-dependent manner. Results indicate that the flavonoids chrysin, galangin, and pinocembrin could contribute to the anti-inflammatory activity of SPE and that the harvest time influences such a property. This study presents evidence of SPE pharmacological potential and some of their constituents.
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Affiliation(s)
- Mayra A Mendez-Encinas
- Department of Chemical Biological and Agropecuary Sciences, University of Sonora, Avenida Universidad e Irigoyen, Caborca 83621, Mexico
| | - Dora Valencia
- Department of Chemical Biological and Agropecuary Sciences, University of Sonora, Avenida Universidad e Irigoyen, Caborca 83621, Mexico
| | - Jesús Ortega-García
- Department of Chemical Biological and Agropecuary Sciences, University of Sonora, Avenida Universidad e Irigoyen, Caborca 83621, Mexico
| | - Elizabeth Carvajal-Millan
- Research Center for Food and Development, CIAD, A.C. Carretera Gustavo Enrique Astiazaran Rosas No. 46, Hermosillo 83304, Mexico
| | - José C Díaz-Ríos
- Department of Chemical Biological and Agropecuary Sciences, University of Sonora, Avenida Universidad e Irigoyen, Caborca 83621, Mexico
| | - Pablo Mendez-Pfeiffer
- Department of Chemical Biological and Agropecuary Sciences, University of Sonora, Avenida Universidad e Irigoyen, Caborca 83621, Mexico
| | - Cinthia M Soto-Bracamontes
- Department of Chemical Biological and Agropecuary Sciences, University of Sonora, Avenida Universidad e Irigoyen, Caborca 83621, Mexico
| | - Adriana Garibay-Escobar
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales S/N, Hermosillo 83000, Mexico
| | - Efrain Alday
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales S/N, Hermosillo 83000, Mexico
| | - Carlos Velazquez
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales S/N, Hermosillo 83000, Mexico
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Ruiz-Bustos P, Alday E, Garibay-Escobar A, Sforcin JM, Lipovka Y, Hernandez J, Velazquez C. Propolis: Antineoplastic Activity, Constituents, and Mechanisms of Action. Curr Top Med Chem 2023; 23:1753-1764. [PMID: 36959133 DOI: 10.2174/1568026623666230321120631] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/23/2023] [Accepted: 02/02/2023] [Indexed: 03/25/2023]
Abstract
Propolis is a beehive product with great pharmacological potential, including antineoplastic activity. OBJECTIVES The aim of this study is to provide an actual understanding of the existent scientific information regarding the antiproliferative effect of propolis, proposed mechanisms of action, and challenges to meet. METHODS An assessment of the scientific literature was attained using the PubMed and SciFinder platforms. Research papers, clinical trials, and reviews published between the years 2000 - 2021, were considered. The words "anticancer", "antitumor", "antiproliferative" and "propolis" were used in the search criteria. CONCLUSION A summary of several antiproliferative activities of different types of propolis is exposed. The potential health benefits of propolis are discussed. The variable plant origin of propolis partially accounts for its anti-cancer activities. Even when some mechanisms of action of propolis have been proposed, much of the genesis of how this effect is produced is yet to be answered, including several molecular mechanisms in different biological systems.
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Affiliation(s)
- Patricia Ruiz-Bustos
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, 83000, Son., Mexico
| | - Efrain Alday
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, 83000, Son., Mexico
| | - Adriana Garibay-Escobar
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, 83000, Son., Mexico
| | - José Maurício Sforcin
- Institute of Biosciences, Department of Chemical and Biological Sciences, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Yulia Lipovka
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, 83000, Son., Mexico
| | - Javier Hernandez
- Instituto de Química Aplicada (IQA), Luis Castelazo Ayala s/n, Col. Industrial Animas, Xalapa, 91190, Veracruz, Mexico
| | - Carlos Velazquez
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, 83000, Son., Mexico
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Murúa-López C, González P, Almeida-Luna S, Garibay-Escobar A, Aguilar-Medina M, Beltrán-López E, López-Moreno HS. First evidence of systemic infection and specific cytotoxic T lymphocyte immune response evoked by oral infection with recombinant Salmonella enterica serovar Albany-Ovalbumin in C57BL/6 mice. Rev Argent Microbiol 2022; 54:282-287. [DOI: 10.1016/j.ram.2022.05.008] [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] [Received: 11/10/2020] [Revised: 03/11/2022] [Accepted: 05/02/2022] [Indexed: 11/26/2022] Open
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Llera AS, Abdelhay ESFW, Artagaveytia N, Daneri-Navarro A, Müller B, Velazquez C, Alcoba EB, Alonso I, Alves da Quinta DB, Binato R, Bravo AI, Camejo N, Carraro DM, Castro M, Castro-Cervantes JM, Cataldi S, Cayota A, Cerda M, Colombo A, Crocamo S, Del Toro-Arreola A, Delgadillo-Cisterna R, Delgado L, Dreyer-Breitenbach M, Fejerman L, Fernández EA, Fernández J, Fernández W, Franco-Topete RA, Gabay C, Gaete F, Garibay-Escobar A, Gómez J, Greif G, Gross TG, Guerrero M, Henderson MK, Lopez-Muñoz ME, Lopez-Vazquez A, Maldonado S, Morán-Mendoza AJ, Nagai MA, Oceguera-Villanueva A, Ortiz-Martínez MA, Quintero J, Quintero-Ramos A, Reis RM, Retamales J, Rivera-Claisse E, Rocha D, Rodríguez R, Rosales C, Salas-González E, Sanchotena V, Segovia L, Sendoya JM, Silva-García AA, Trinchero A, Valenzuela O, Vedham V, Zagame L, Podhajcer OL. The Transcriptomic Portrait of Locally Advanced Breast Cancer and Its Prognostic Value in a Multi-Country Cohort of Latin American Patients. Front Oncol 2022; 12:835626. [PMID: 35433488 PMCID: PMC9007037 DOI: 10.3389/fonc.2022.835626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 02/14/2022] [Indexed: 11/13/2022] Open
Abstract
Purposes Most molecular-based published studies on breast cancer do not adequately represent the unique and diverse genetic admixture of the Latin American population. Searching for similarities and differences in molecular pathways associated with these tumors and evaluating its impact on prognosis may help to select better therapeutic approaches. Patients and Methods We collected clinical, pathological, and transcriptomic data of a multi-country Latin American cohort of 1,071 stage II-III breast cancer patients of the Molecular Profile of Breast Cancer Study (MPBCS) cohort. The 5-year prognostic ability of intrinsic (transcriptomic-based) PAM50 and immunohistochemical classifications, both at the cancer-specific (OSC) and disease-free survival (DFS) stages, was compared. Pathway analyses (GSEA, GSVA and MetaCore) were performed to explore differences among intrinsic subtypes. Results PAM50 classification of the MPBCS cohort defined 42·6% of tumors as LumA, 21·3% as LumB, 13·3% as HER2E and 16·6% as Basal. Both OSC and DFS for LumA tumors were significantly better than for other subtypes, while Basal tumors had the worst prognosis. While the prognostic power of traditional subtypes calculated with hormone receptors (HR), HER2 and Ki67 determinations showed an acceptable performance, PAM50-derived risk of recurrence best discriminated low, intermediate and high-risk groups. Transcriptomic pathway analysis showed high proliferation (i.e. cell cycle control and DNA damage repair) associated with LumB, HER2E and Basal tumors, and a strong dependency on the estrogen pathway for LumA. Terms related to both innate and adaptive immune responses were seen predominantly upregulated in Basal tumors, and, to a lesser extent, in HER2E, with respect to LumA and B tumors. Conclusions This is the first study that assesses molecular features at the transcriptomic level in a multicountry Latin American breast cancer patient cohort. Hormone-related and proliferation pathways that predominate in PAM50 and other breast cancer molecular classifications are also the main tumor-driving mechanisms in this cohort and have prognostic power. The immune-related features seen in the most aggressive subtypes may pave the way for therapeutic approaches not yet disseminated in Latin America. Clinical Trial Registration ClinicalTrials.gov (Identifier: NCT02326857).
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Affiliation(s)
- Andrea Sabina Llera
- Molecular and Cellular Therapy Laboratory, Fundación Instituto Leloir-CONICET, Buenos Aires, Argentina
| | | | - Nora Artagaveytia
- Hospital de Clínicas Manuel Quintela, Universidad de la República, Montevideo, Uruguay
| | | | | | | | - Elsa B Alcoba
- Hospital Municipal de Oncología María Curie, Buenos Aires, Argentina
| | - Isabel Alonso
- Centro Hospitalario Pereira Rossell, Montevideo, Uruguay
| | - Daniela B Alves da Quinta
- Molecular and Cellular Therapy Laboratory, Fundación Instituto Leloir-CONICET, Buenos Aires, Argentina.,Universidad Argentina de la Empresa (UADE), Instituto de Tecnología (INTEC), Buenos Aires, Argentina
| | - Renata Binato
- Bone Marrow Transplantation Unit, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | | | - Natalia Camejo
- Hospital de Clínicas Manuel Quintela, Universidad de la República, Montevideo, Uruguay
| | - Dirce Maria Carraro
- Laboratory of Genomics and Molecular Biology/Centro Internacional de Pesquisa (CIPE), AC Camargo Cancer Center, Sao Paulo, Brazil
| | - Mónica Castro
- Instituto de Oncología Angel Roffo, Buenos Aires, Argentina
| | | | | | | | - Mauricio Cerda
- Integrative Biology Program, Instituto de Ciencias Biomédicas (ICBM), Centro de Informática Médica y Telemedicina, Facultad de Medicina, Instituto de Neurociencias Biomédicas, Universidad de Chile, Santiago, Chile
| | - Alicia Colombo
- Department of Pathology, Facultad de Medicina y Hospital Clínico, Universidad de Chile, Santiago, Chile
| | - Susanne Crocamo
- Oncology Department, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | | | | | - Lucía Delgado
- Hospital de Clínicas Manuel Quintela, Universidad de la República, Montevideo, Uruguay
| | - Marisa Dreyer-Breitenbach
- Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Laura Fejerman
- Department of Public Health Sciences and Comprehensive Cancer Center, University of California Davis, Davis, CA, United States
| | - Elmer A Fernández
- Centro de Investigación y Desarrollo en Inmunología y Enfermedades Infecciosas [Centro de Investigación y Desarrollo en Inmunología y Enfermedades Infecciosas (CIDIE) CONICET/Universidad Católica de Córdoba], Córdoba, Argentina.,Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina
| | | | | | - Ramón A Franco-Topete
- Organismo Público Descentralizado (OPD), Hospital Civil de Guadalajara, Universidad de Guadalajara, Guadalajara, Mexico
| | - Carolina Gabay
- Instituto de Oncología Angel Roffo, Buenos Aires, Argentina
| | | | | | - Jorge Gómez
- Texas A&M University, Houston, TX, United States
| | | | - Thomas G Gross
- Center for Global Health, National Cancer Institute, Rockville, MD, United States
| | | | - Marianne K Henderson
- Center for Global Health, National Cancer Institute, Rockville, MD, United States
| | | | | | | | | | - Maria Aparecida Nagai
- Center for Translational Research in Oncology, Cancer Institute of São Paulo (ICESP), Sao Paulo University Medical School, Sao Paulo, Brazil
| | | | | | | | | | - Rui M Reis
- Molecular Oncology Research Center, Hospital de Câncer de Barretos, Barretos, Brazil
| | - Javier Retamales
- Grupo Oncológico Cooperativo Chileno de Investigación, Santiago, Chile
| | | | - Darío Rocha
- Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina
| | | | - Cristina Rosales
- Hospital Municipal de Oncología María Curie, Buenos Aires, Argentina
| | | | | | | | - Juan Martín Sendoya
- Molecular and Cellular Therapy Laboratory, Fundación Instituto Leloir-CONICET, Buenos Aires, Argentina
| | - Aida A Silva-García
- Organismo Público Descentralizado (OPD), Hospital Civil de Guadalajara, Universidad de Guadalajara, Guadalajara, Mexico
| | | | | | - Vidya Vedham
- Center for Global Health, National Cancer Institute, Rockville, MD, United States
| | - Livia Zagame
- Instituto Jalisciense de Cancerologia, Guadalajara, Mexico
| | | | - Osvaldo L Podhajcer
- Molecular and Cellular Therapy Laboratory, Fundación Instituto Leloir-CONICET, Buenos Aires, Argentina
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Arellano-Cruz BDJ, Vázquez-Prieto MDLÁ, Fernández-Eufrasio NB, Montiel-Condado D, Patiño-López G, Garibay-Escobar A, Sumoza-Toledo A. Aging does not affect calcium response to CCL2 and LPS in human monocytes. Hum Immunol 2021; 83:164-168. [PMID: 34893345 DOI: 10.1016/j.humimm.2021.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/28/2021] [Accepted: 11/12/2021] [Indexed: 11/27/2022]
Abstract
Monocytes play important roles in anti-microbial and anti-viral responses and chronic inflammatory diseases. Monocytes' functions are altered by aging. We investigated age-changes in calcium (Ca2+) response to CCL2 and LPS in human monocytes. CCL2 and LPS induced a slow increase of the cytosolic Ca2+ level, with a maximum response at ∼360 s and ∼300 s, respectively, in monocytes of young and older adults. No difference was observed in the magnitude and in the Ca2+ kinetic with both stimuli. Furthermore, store-operated Ca2+ entry and plasma membrane expression of ORAI1 showed no difference between both groups. In summary, monocytes from older adults maintained the capacity to mobilize calcium as their counterparts in young adults suggesting that the mechanisms underlying the dysfunctions in monocytes in aging might not involve alterations in Ca2+ flow through the plasma membrane.
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Affiliation(s)
- Bruno de Jesús Arellano-Cruz
- Instituto de Investigaciones Médico Biológicas, Universidad Veracruzana, Agustín de Iturbide S/N, C.P. 91700 Veracruz, Ver., México
| | | | - Nilda Belén Fernández-Eufrasio
- Instituto de Investigaciones Médico Biológicas, Universidad Veracruzana, Agustín de Iturbide S/N, C.P. 91700 Veracruz, Ver., México
| | - Dvorak Montiel-Condado
- Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León (NL), Av. Universidad, Cd. Universitaria, C.P. 66455 San Nicolás de los Garza, NL, México
| | - Genaro Patiño-López
- Laboratorio de Investigación en Inmunología y Proteómica, Hospital Infantil de México Federico Gómez, Calle Doctor Márquez 162, C.P. 06720 Ciudad de México, México
| | - Adriana Garibay-Escobar
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y L. Encinas, C.P. 83000 Hermosillo, Son., México
| | - Adriana Sumoza-Toledo
- Instituto de Investigaciones Médico Biológicas, Universidad Veracruzana, Agustín de Iturbide S/N, C.P. 91700 Veracruz, Ver., México.
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Garzon T, Ortega-Tirado D, Lopez-Romero G, Alday E, Robles-Zepeda RE, Garibay-Escobar A, Velazquez C. "Immunoinformatic Identification of T-Cell and B-Cell Epitopes From Giardia lamblia Immunogenic Proteins as Candidates to Develop Peptide-Based Vaccines Against Giardiasis". Front Cell Infect Microbiol 2021; 11:769446. [PMID: 34778111 PMCID: PMC8579046 DOI: 10.3389/fcimb.2021.769446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 10/08/2021] [Indexed: 11/19/2022] Open
Abstract
Giardiasis is one of the most common gastrointestinal infections worldwide, mainly in developing countries. The etiological agent is the Giardia lamblia parasite. Giardiasis mainly affects children and immunocompromised people, causing symptoms such as diarrhea, dehydration, abdominal cramps, nausea, and malnutrition. In order to develop an effective vaccine against giardiasis, it is necessary to understand the host-Giardia interactions, the immunological mechanisms involved in protection against infection, and to characterize the parasite antigens that activate the host immune system. In this study, we identify and characterize potential T-cell and B-cell epitopes of Giardia immunogenic proteins by immunoinformatic approaches, and we discuss the potential role of those epitopes to stimulate the host´s immune system. We selected the main immunogenic and protective proteins of Giardia experimentally investigated. We predicted T-cell and B-cell epitopes using immunoinformatic tools (NetMHCII and BCPREDS). Variable surface proteins (VSPs), structural (giardins), metabolic, and cyst wall proteins were identified as the more relevant immunogens of G. lamblia. We described the protein sequences with the highest affinity to bind MHC class II molecules from mouse (I-Ak and I-Ad) and human (DRB1*03:01 and DRB1*13:01) alleles, as well as we selected promiscuous epitopes, which bind to the most common range of MHC class II molecules in human population. In addition, we identified the presence of conserved epitopes within the main protein families (giardins, VSP, CWP) of Giardia. To our knowledge, this is the first in silico study that analyze immunogenic proteins of G. lamblia by combining bioinformatics strategies to identify potential T-cell and B-cell epitopes, which can be potential candidates in the development of peptide-based vaccines. The bioinformatics analysis demonstrated in this study provides a deeper understanding of the Giardia immunogens that bind to critical molecules of the host immune system, such as MHC class II and antibodies, as well as strategies to rational design of peptide-based vaccine against giardiasis.
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Affiliation(s)
- Thania Garzon
- Department of Chemistry-Biology, University of Sonora, Hermosillo, Mexico
| | | | | | - Efrain Alday
- Department of Chemistry-Biology, University of Sonora, Hermosillo, Mexico
| | | | | | - Carlos Velazquez
- Department of Chemistry-Biology, University of Sonora, Hermosillo, Mexico
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10
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López-Canizales AM, Angulo-Molina A, Garibay-Escobar A, Silva-Campa E, Mendez-Rojas MA, Santacruz-Gómez K, Acosta-Elías M, Castañeda-Medina B, Soto-Puebla D, Álvarez-Bajo O, Burgara-Estrella A, Pedroza-Montero M. Nanoscale Changes on RBC Membrane Induced by Storage and Ionizing Radiation: A Mini-Review. Front Physiol 2021; 12:669455. [PMID: 34149450 PMCID: PMC8213202 DOI: 10.3389/fphys.2021.669455] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 02/19/2021] [Accepted: 05/10/2021] [Indexed: 11/25/2022] Open
Abstract
The storage lesions and the irradiation of blood cellular components for medical procedures in blood banks are events that may induce nanochanges in the membrane of red blood cells (RBCs). Alterations, such as the formation of pores and vesicles, reduce flexibility and compromise the overall erythrocyte integrity. This review discusses the alterations on erythrocytic lipid membrane bilayer through their characterization by confocal scanning microscopy, Raman, scanning electron microscopy, and atomic force microscopy techniques. The interrelated experimental results may address and shed light on the correlation of biomechanical and biochemical transformations induced in the membrane and cytoskeleton of stored and gamma-irradiated RBC. To highlight the main advantages of combining these experimental techniques simultaneously or sequentially, we discuss how those outcomes observed at micro- and nanoscale cell levels are useful as biomarkers of cell aging and storage damage.
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Affiliation(s)
| | - Aracely Angulo-Molina
- Departamento de Ciencias Químico-Biológicas, Universidad de Sonora, Hermosillo, Mexico
| | | | - Erika Silva-Campa
- Departamento de Investigación en Física, Universidad de Sonora, Hermosillo, Mexico
| | - Miguel A. Mendez-Rojas
- Departamento de Ciencias Químico-Biológicas, Universidad de las Américas, Puebla, Mexico
| | | | - Mónica Acosta-Elías
- Departamento de Investigación en Física, Universidad de Sonora, Hermosillo, Mexico
| | | | - Diego Soto-Puebla
- Departamento de Investigación en Física, Universidad de Sonora, Hermosillo, Mexico
| | - Osiris Álvarez-Bajo
- Departamento de Investigación en Física, Universidad de Sonora, Hermosillo, Mexico
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11
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Niño-Padilla EI, Velazquez C, Garibay-Escobar A. Mycobacterial biofilms as players in human infections: a review. Biofouling 2021; 37:410-432. [PMID: 34024206 DOI: 10.1080/08927014.2021.1925886] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 04/18/2021] [Accepted: 04/28/2021] [Indexed: 06/12/2023]
Abstract
The role of biofilms in pathogenicity and treatment strategies is often neglected in mycobacterial infections. In recent years, the emergence of nontuberculous mycobacterial infections has necessitated the development of novel prophylactic strategies and elucidation of the mechanisms underlying the establishment of chronic infections. More importantly, the question arises whether members of the Mycobacterium tuberculosis complex can form biofilms and contribute to latent tuberculosis and drug resistance because of the long-lasting and recalcitrant nature of its infections. This review discusses some of the molecular mechanisms by which biofilms could play a role in infection or pathological events in humans.
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Affiliation(s)
| | - Carlos Velazquez
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo, Sonora, México
| | - Adriana Garibay-Escobar
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo, Sonora, México
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12
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Vazquez-Morado LE, Robles-Zepeda RE, Ochoa-Leyva A, Arvizu-Flores AA, Garibay-Escobar A, Castillo-Yañez F, Lopez-Zavala AA. Biochemical characterization and inhibition of thermolabile hemolysin from Vibrio parahaemolyticus by phenolic compounds. PeerJ 2021; 9:e10506. [PMID: 33505784 PMCID: PMC7796666 DOI: 10.7717/peerj.10506] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 11/16/2020] [Indexed: 12/28/2022] Open
Abstract
Vibrio parahaemolyticus (Vp), a typical microorganism inhabiting marine ecosystems, uses pathogenic virulence molecules such as hemolysins to cause bacterial infections of both human and marine animals. The thermolabile hemolysin VpTLH lyses human erythrocytes by a phospholipase B/A2 enzymatic activity in egg-yolk lecithin. However, few studies have been characterized the biochemical properties and the use of VpTLH as a molecular target for natural compounds as an alternative to control Vp infection. Here, we evaluated the biochemical and inhibition parameters of the recombinant VpTLH using enzymatic and hemolytic assays and determined the molecular interactions by in silico docking analysis. The highest enzymatic activity was at pH 8 and 50 °C, and it was inactivated by 20 min at 60 °C with Tm = 50.9 °C. Additionally, the flavonoids quercetin, epigallocatechin gallate, and morin inhibited the VpTLH activity with IC50 values of 4.5 µM, 6.3 µM, and 9.9 µM, respectively; while phenolics acids were not effective inhibitors for this enzyme. Boltzmann and Arrhenius equation analysis indicate that VpTLH is a thermolabile enzyme. The inhibition of both enzymatic and hemolytic activities by flavonoids agrees with molecular docking, suggesting that flavonoids could interact with the active site’s amino acids. Future research is necessary to evaluate the antibacterial activity of flavonoids against Vp in vivo.
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Affiliation(s)
- Luis E Vazquez-Morado
- Departamento de Ciencias Quimico Biologicas, Universidad de Sonora, Hermosillo, Sonora, Mexico.,Departamento de Microbiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico
| | - Ramon E Robles-Zepeda
- Departamento de Ciencias Quimico Biologicas, Universidad de Sonora, Hermosillo, Sonora, Mexico
| | - Adrian Ochoa-Leyva
- Departamento de Microbiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico
| | - Aldo A Arvizu-Flores
- Departamento de Ciencias Quimico Biologicas, Universidad de Sonora, Hermosillo, Sonora, Mexico
| | - Adriana Garibay-Escobar
- Departamento de Ciencias Quimico Biologicas, Universidad de Sonora, Hermosillo, Sonora, Mexico
| | | | - Alonso A Lopez-Zavala
- Departamento de Ciencias Quimico Biologicas, Universidad de Sonora, Hermosillo, Sonora, Mexico
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13
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Mendez-Pfeiffer P, Alday E, Carreño AL, Hernández-Tánori J, Montaño-Leyva B, Ortega-García J, Valdez J, Garibay-Escobar A, Hernandez J, Valencia D, Velazquez C. Seasonality Modulates the Cellular Antioxidant Activity and Antiproliferative Effect of Sonoran Desert Propolis. Antioxidants (Basel) 2020; 9:antiox9121294. [PMID: 33348680 PMCID: PMC7765891 DOI: 10.3390/antiox9121294] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 11/05/2020] [Revised: 11/29/2020] [Accepted: 12/03/2020] [Indexed: 01/12/2023] Open
Abstract
The main chemical composition and pharmacological potential of propolis from arid and semi-arid regions of the Sonoran Desert have been previously reported. Caborca propolis (CP), from an arid zone of the Sonoran Desert, has shown a polyphenolic profile that suggests a mixed plant origin, presenting poplar-type markers, as well as a 6-methoxylated flavonoid, xanthomicrol, characteristic of Asteraceae plants. In addition, CP has shown significant antioxidant properties and antiproliferative activity on cancer cells. In this study, we analyzed the influence of collection time on the chemical constitution, antiproliferative activity and protective capacity of CP against reactive oxygen species (ROS), by using HPLC–UV–diode array detection (DAD) analysis, 3-(4,5-dimethylthiazol-2-yl)-2,5-Dimethyltetrazoliumbromide (MTT) and 2,2-diphenyl-1-picryl-hydrazyl (DPPH) assays, as well as cellular antioxidant activity (CAA) assay on murine B-cell lymphoma M12.C3.F6 cells. HPLC–UV–DAD analyses of seasonally collected CP (one-year period) revealed quantitative differences among the most abundant CP constituents: pinocembrin, galangin, chrysin and pinobanksin-3-O-acetate. Though all seasonal samples of CP induced an antiproliferative effect in M12.C3.F6 cells, CP from autumn showed the highest inhibitory activity (IC50: 5.9 ± 0.6 µg/mL). The DPPH assay pointed out that CP collected in autumn presented the highest antioxidant potential (IC50: 58.8 ± 6.7 µg/mL), followed by winter (65.7 ± 12.2 µg/mL) and spring (67.0 ± 7.5 µg/mL); meanwhile, the summer sample showed a lesser antioxidant capacity (IC50: 98.7 ± 2.5 µg/mL). The CAA assay demonstrated that CP induced a significant protective effect against ROS production elicited by H2O2 in M12.C3.F6 cells. Pretreatment of M12.C3.F6 cells with CP from spring and autumn (25 and 50 µg/mL for 1 h) showed the highest reduction in intracellular ROS induced by H2O2 (1 and 5 mM). These results indicate that the antiproliferative effect and cellular antioxidant activity of CP are modulated by quantitative fluctuations in its polyphenolic profile due to its collection time.
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Affiliation(s)
- Pablo Mendez-Pfeiffer
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora C.P. 83000, Mexico; (P.M.-P.); (E.A.); (A.L.C.); (J.V.); (A.G.-E.)
| | - Efrain Alday
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora C.P. 83000, Mexico; (P.M.-P.); (E.A.); (A.L.C.); (J.V.); (A.G.-E.)
| | - Ana Laura Carreño
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora C.P. 83000, Mexico; (P.M.-P.); (E.A.); (A.L.C.); (J.V.); (A.G.-E.)
| | - Jorge Hernández-Tánori
- Department of Chemical Biological and Agropecuary Sciences, University of Sonora, Av. Universidad and Irigoyen, Caborca, Sonora C.P. 83600, Mexico; (J.H.-T.); (J.O.-G.)
| | - Beatriz Montaño-Leyva
- Departamento de Investigacion y Posgrado en Alimentos, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora C.P. 83000, Mexico;
| | - Jesús Ortega-García
- Department of Chemical Biological and Agropecuary Sciences, University of Sonora, Av. Universidad and Irigoyen, Caborca, Sonora C.P. 83600, Mexico; (J.H.-T.); (J.O.-G.)
| | - Judith Valdez
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora C.P. 83000, Mexico; (P.M.-P.); (E.A.); (A.L.C.); (J.V.); (A.G.-E.)
| | - Adriana Garibay-Escobar
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora C.P. 83000, Mexico; (P.M.-P.); (E.A.); (A.L.C.); (J.V.); (A.G.-E.)
| | - Javier Hernandez
- Unidad de Servicios de Apoyo en Resolución Analítica, Universidad Veracruzana, Xalapa, Veracruz C.P. 91190, Mexico;
| | - Dora Valencia
- Department of Chemical Biological and Agropecuary Sciences, University of Sonora, Av. Universidad and Irigoyen, Caborca, Sonora C.P. 83600, Mexico; (J.H.-T.); (J.O.-G.)
- Correspondence: (D.V.); (C.V.); Tel.: +52-(637)-372-65-40 (D.V.); +52-(662)-259-21-63 (C.V.); Fax: +52-(662)-259-21-63 (C.V.)
| | - Carlos Velazquez
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora C.P. 83000, Mexico; (P.M.-P.); (E.A.); (A.L.C.); (J.V.); (A.G.-E.)
- Correspondence: (D.V.); (C.V.); Tel.: +52-(637)-372-65-40 (D.V.); +52-(662)-259-21-63 (C.V.); Fax: +52-(662)-259-21-63 (C.V.)
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14
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Ortega-Tirado D, Arvizu-Flores AA, Velazquez C, Garibay-Escobar A. The role of immunoinformatics in the development of T-cell peptide-based vaccines against Mycobacterium tuberculosis. Expert Rev Vaccines 2020; 19:831-841. [PMID: 32945209 DOI: 10.1080/14760584.2020.1825950] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
INTRODUCTION Tuberculosis (TB) is a major health problem worldwide. The BCG, the only authorized vaccine to fight TB, shows a variable protection in the adult population highlighting the need of a new vaccine. Immunoinformatics offers a variety of tools that can predict immunogenic T-cell peptides of Mycobacterium tuberculosis (Mtb) that can be used to create a new vaccine. Immunoinformatics has made possible the identification of immunogenic T-cell peptides of Mtb that have been tested in vitro showing a potential for using these molecules as part of a new TB vaccine. AREAS COVERED This review summarizes the most common immunoinformatics tools to identify immunogenic T-cell peptides and presents a compilation about research studies that have identified T-cell peptides of Mtb by using immunoinformatics. Also, it is provided a summary of the TB vaccines undergoing clinical trials. EXPERT OPINION In the next few years, the field of peptide-based vaccines will keep growing along with the development of more efficient and sophisticated immunoinformatic tools to identify immunogenic peptides with a greater accuracy.
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Affiliation(s)
- David Ortega-Tirado
- Departamento De Ciencias Químico Biológicas Universidad De Sonora , Hermosillo, Sonora, México
| | - Aldo A Arvizu-Flores
- Departamento De Ciencias Químico Biológicas Universidad De Sonora , Hermosillo, Sonora, México
| | - Carlos Velazquez
- Departamento De Ciencias Químico Biológicas Universidad De Sonora , Hermosillo, Sonora, México
| | - Adriana Garibay-Escobar
- Departamento De Ciencias Químico Biológicas Universidad De Sonora , Hermosillo, Sonora, México
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15
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Morales-Chávez SD, Robles-Zepeda RE, Garibay-Escobar A, Velázquez-Contreras C, Ruiz-Bustos E, Rivas-Galindo V, Jiménez-Estrada M, Gálvez-Ruíz JC. Actividad anti-proliferativa de Aloysia sonorensis sobre líneas celulares de cáncer. TIP RECQB 2020. [DOI: 10.22201/fesz.23958723e.2020.0.247] [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: 11/30/2022] Open
Abstract
Aloysia sonorensis, planta perene de la costa sur de Sonora, México, conocida como “Mariola”, ha sido utilizada para el tratamiento de enfermedades como resfriado, fiebre y dolor de estómago. Además, algunas especies del género Aloysia han mostrado actividad antiproliferativa contra líneas celulares cancerosas. Debido a ésto, el objetivo del presente trabajo fue determinar la actividad antiproliferativa de Aloysia sonorensis contra líneas celulares cancerosas e identificar los compuestos responsables de esta actividad. Las partes aéreas de la planta se extrajeron con metanol, el cual fue fraccionado con solventes orgánicos. Se determinó la actividad antiproliferativa del extracto metanólico, y sus fracciones, contra diferentes líneas celulares cancerosas, usando el método del MTT. La subfracción FH12 mostró citotoxicidad selectiva con valores de IC50 de 2.84 y 12.12 µg/mL contra las líneas celulares cancerosas RAW 264.7 y HeLa, respectivamente. La subfracción FH22 mostró valores de IC50 de 6.32 y 13.87 µg/mL contra las líneas celulares cancerosas M12.C3.F6 y HeLa, respectivamente. La fracción FAc1 mostró valores de IC50 de 9.42 y 8.93 µg/mL contra las líneas celulares cancerosas RAW 264.7 y M12.C3.F6, respectivamente. Se determinó la presencia del monoterpeno Piperitenona durante el proceso de fraccionamiento biodirigido.
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16
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Ortega-Tirado D, Niño-Padilla EI, Arvizu-Flores AA, Velazquez C, Espitia C, Serrano CJ, Enciso-Moreno JA, Sumoza-Toledo A, Garibay-Escobar A. Identification of immunogenic T-cell peptides of Mycobacterium tuberculosis PE_PGRS33 protein. Mol Immunol 2020; 125:123-130. [PMID: 32659597 DOI: 10.1016/j.molimm.2020.06.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 06/02/2020] [Accepted: 06/24/2020] [Indexed: 12/11/2022]
Abstract
The development of a more efficient vaccine is needed to improve tuberculosis control. One of the current approaches is to identify immunogenic T-cell peptides that can elicit a protective and specific immune response. These peptides come from immunogenic proteins of the pathogen. The PE_PGRS33 protein of Mycobacterium tuberculosis has been proved immunogenic. However, little is known about immunogenic T-cell peptides of PE_PGRS33 and their interactions with MHC-II molecules. Therefore, we used the SYFPHEITHI database to determine the immunogenic PE_PGRS33 T-cell peptides. Next, we built homology models by using MOE v2018.1 software in order to obtain information about the specific interactions between the peptides and I-Ak. The AlgPred server was employed to look for allergenic sites in PE_PGRS33. We developed a sequence alignment between PE_PGRS33 and all the human proteins by using BLAST. Three peptides were commercially synthesized, and their activity was evaluated in vitro by the stimulation of PBMC from household contacts of TB patients. Our in silico results showed five immunogenic T-cell peptides. BLAST analysis showed low homology of PE_PGRS33 with human proteins and AlgPred did not reveal allergenic sites in PE_PGRS33. The three peptides triggered the activation of CD4+ T cells from the households contacts, showed by the production of IFN-γ. We identified three immunogenic peptides of PE_PGRS33 that demonstrated activity in vitro which allows to deepen into the immune response towards mycobacterial antigens, moving forward to the identification of new vaccine candidates.
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Affiliation(s)
- David Ortega-Tirado
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, 83000, Hermosillo, Sonora, México
| | - Esmeralda Ivonne Niño-Padilla
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, 83000, Hermosillo, Sonora, México
| | - Aldo A Arvizu-Flores
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, 83000, Hermosillo, Sonora, México
| | - Carlos Velazquez
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, 83000, Hermosillo, Sonora, México
| | - Clara Espitia
- Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510, Coyoacán Ciudad de México, México
| | - Carmen J Serrano
- Unidad de Investigación Biomédica de Zacatecas, Instituto Mexicano del Seguro Social, Interior Alameda #45, 98000, Zacatecas, Zacatecas, México
| | - José Antonio Enciso-Moreno
- Unidad de Investigación Biomédica de Zacatecas, Instituto Mexicano del Seguro Social, Interior Alameda #45, 98000, Zacatecas, Zacatecas, México
| | - Adriana Sumoza-Toledo
- Instituto de Investigaciones Médico-Biológicas, Universidad Veracruzana, Agustín de Iturbide s/n, 91700, Veracruz, Veracruz, México
| | - Adriana Garibay-Escobar
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, 83000, Hermosillo, Sonora, México.
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17
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Garzon T, Valencia L, Dominguez V, Rascon L, Quintero J, Garibay-Escobar A, Enrique Robles-Zepeda R, Velazquez C. Differential antibody responses to Giardia lamblia strain variants expressing dissimilar levels of an immunogenic protein. Parasite Immunol 2020; 42:e12767. [PMID: 32594543 DOI: 10.1111/pim.12767] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 06/13/2020] [Accepted: 06/15/2020] [Indexed: 12/18/2022]
Abstract
AIMS Giardia lamblia is a protozoan parasite that causes giardiasis, one of the most common worldwide gastrointestinal diseases. For rational development of a Giardia vaccine, increasing our understanding of the host-Giardia interaction is crucial. In this study, we analysed the immunogenicity and antigenicity of two G lamblia strain variants [GS and GS-5G8 (+)], which express different levels of the variant-specific surface protein (VSP) 5G8 and also analysed the intestinal histological changes associated with Giardia infection. METHODS AND RESULTS We evaluated the antibody responses induced by G lamblia strains in infected, reinfected and immunized C3H/HeJ mice using ELISA, flow cytometry, Western blotting and histological analysis. Our results showed that G lamblia GS-5G8 (+) was more immunogenic and antigenic than the GS strain. The antibody response against the GS-5G8 (+) strain primarily recognized 5G8 protein. Serum antibody from infected and reinfected mice exhibited specific agglutination of trophozoites in vitro. GS-5G8 (+)-infected mice showed higher CD19+ infiltrating cell levels compared to GS-infected animals. CONCLUSION G lamblia strains with different expression levels of an immunogenic antigen (VSP 5G8) induce differential antibody responses. A better understanding of the immunogenic proteins of G lamblia will contribute to the rational development of an effective vaccine against this parasitic disease.
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Affiliation(s)
- Thania Garzon
- Department of Chemistry-Biology, University of Sonora, Hermosillo, Mexico
| | - Lourdes Valencia
- Department of Chemistry-Biology, University of Sonora, Hermosillo, Mexico
| | - Victor Dominguez
- Department of Chemistry-Biology, University of Sonora, Hermosillo, Mexico
| | - Lucila Rascon
- Department of Chemistry-Biology, University of Sonora, Hermosillo, Mexico
| | - Jael Quintero
- Health Science Department, University of Sonora, Obregon, Mexico
| | | | | | - Carlos Velazquez
- Department of Chemistry-Biology, University of Sonora, Hermosillo, Mexico
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18
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Sumoza-Toledo A, de los Ángeles Vázquez-Prieto M, Lascurais-Santamaría N, Fernández-Eufrasio NB, Montiel-Condado D, Garibay-Escobar A. CALCIUM MOBILIZATION AND EXPRESION OF TRPM2 AND CRAC CHANNELS ARE ALTERED IN HUMAN NEUTROPHILS WITH AGING. The Journal of Immunology 2020. [DOI: 10.4049/jimmunol.204.supp.148.41] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Elderly susceptibility to infectious diseases may be a result of a decline in the function of neutrophils. We analyzed the number and percentage of neutrophils in peripheral blood of healthy elderly (60–85 years old) and young adults (20–35 years old), as well as the effect of aging on store-operated Ca+2 entry (SOCE), Ca+2 mobilization towards 100 nM or 1μM fMLP, 300 nM IL-8, 10 nM C5a, and 25 μg/ml LPS, by flow cytometry; and its relation to the expression of CD88, CXCR2, FPLR1, TRL4 and TRPM2 and CRAC channels. To examine Ca+2 mobilization, cells were loaded with 1 μM Fluo-4-AM. Baseline Ca+2 level was recorded for 60 s before the addition of the stimulus; response was recorded up to 10 min. Subcellular expression of CRAC and TRPM2 was investigated by confocal microscopy and their mRNA quantified by real time RT-PCR. Finally, migration towards 10 nM fMLP, C5a or IL-8 was measured by transwell chemotaxis assay. The results showed increased numbers and percentage of neutrophils in elderly, mainly in females. However, these cells presented lower Ca+2 entry in response to C5a, IL-8 and fMLP, and significantly lower SOCE. We did not find difference in the Ca+2 response to LPS or in the expression of the receptors of the stimuli (CD88, CXCR2, FPLR1 and TRL4). A punctuated intracellular pattern of TRPM2 and CRAC was observed in the neutrophils. TRPM2 was located in late endosomes and presented changes in its distribution with age. It was also detected a decrease in the mRNA of the TRPM2 and CRAC channels, mainly in women. Finally, we found that neutrophils from elderly migrated less towards fMLP, IL-8 and C5a. Our data suggest that the mechanisms that underlie the decrease on neutrophil functions with aging might be alterations in Ca+2 signals.
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Torres-Moreno H, Marcotullio MC, Velázquez C, Ianni F, Garibay-Escobar A, Robles-Zepeda RE. Cucurbitacin IIb, a steroidal triterpene from Ibervillea sonorae induces antiproliferative and apoptotic effects on cervical and lung cancer cells. Steroids 2020; 157:108597. [PMID: 32068079 DOI: 10.1016/j.steroids.2020.108597] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 12/07/2019] [Accepted: 02/05/2020] [Indexed: 01/28/2023]
Abstract
Chemical studies on Ibervillea sonorae (S. Watson) Greene root led to isolation and chemical characterization of diverse cucurbitacin triterpenoid compounds such as kinoin A, B, C, and their glucosides. In previous studies, we demonstrated that kinoin A inhibits the cell proliferation on diverse cell line and induce apoptosis in HeLa cells. Therefore, the study of the isolated compounds from the extracts continued to be necessary. The objective of the present work was to isolate and chemically characterize the active compounds of the methanolic extract of the roots of I. sonorae and to evaluate their antiproliferative activity and induction of apoptosis. By chromatographic column separation and using NMR spectroscopy experiments, cucurbitacin IIb (CIIb), known as 23,24-dihydrocucurbitacin F or hemslecin B, was isolated and identified for the first time as a chemical constituent of the crude methanolic extract of this plant. The antiproliferative activity of CIIb was evaluated by MTT assay, and the apoptosis induction capacity was monitored by annexin V-FITC/propidium iodide using flow cytometry. CIIb showed a pronounced effect on the proliferation of HeLa and A549 tumor cells, with IC50 of 7.3 and 7.8 µM, respectively, but was less effective against L929 non-cancerous murine cell line. Apoptosis induction capacity of CIIb on HeLa and A549 was monitored by annexin V-FITC/propidium iodide using flow cytometry. Exposure of HeLa and A549 with CIIb (8 µM) for 24 h increased 56.9 and 52.3% respectively of the total apoptosis compared to the negative control (p < 0.005). CIIb, isolated for the first time from I. sonorae, showed antiproliferative activity against HeLa and A549 cell lines by inducing cell death by apoptosis.
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Affiliation(s)
- Heriberto Torres-Moreno
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Blvd. Luis Encinas y Rosales, Hermosillo, Sonora 83000, Mexico; Departamento de Ciencias Químico Biológicas y Agropecuarias, Universidad de Sonora, Avenida Universidad e Irigoyen, Caborca, Sonora 83621, Mexico
| | - Maria Carla Marcotullio
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Perugia - Via del Liceo, 1, 06123 Perugia, Italy
| | - Carlos Velázquez
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Blvd. Luis Encinas y Rosales, Hermosillo, Sonora 83000, Mexico
| | - Federica Ianni
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Perugia - Via Fabretti, 48-06123 Perugia, Italy
| | - Adriana Garibay-Escobar
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Blvd. Luis Encinas y Rosales, Hermosillo, Sonora 83000, Mexico
| | - Ramón Enrique Robles-Zepeda
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Blvd. Luis Encinas y Rosales, Hermosillo, Sonora 83000, Mexico.
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Alday E, Valencia D, Garibay-Escobar A, Domínguez-Esquivel Z, Piccinelli AL, Rastrelli L, Monribot-Villanueva J, Guerrero-Analco JA, Robles-Zepeda RE, Hernandez J, Velazquez C. Plant origin authentication of Sonoran Desert propolis: an antiproliferative propolis from a semi-arid region. Naturwissenschaften 2019; 106:25. [PMID: 31069518 DOI: 10.1007/s00114-019-1620-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 04/03/2019] [Accepted: 04/11/2019] [Indexed: 12/12/2022]
Abstract
The main chemical composition of Sonoran propolis (SP), as well as its antiproliferative activity on cancer cells through apoptosis induction, has been reported. The chemical constitution of SP remained qualitatively similar throughout the year, whereas the antiproliferative effect on cancer cells exhibited significant differences amongst seasonal samples. The main goal of this study was to provide phytochemical and pharmacological evidence for the botanical source of SP and its antiproliferative constituents. A chemical comparative analysis of SP and plant resins of species found in the surrounding areas of the beehives was carried out by HPLC-UV-DAD, as well as by 1H NMR experiments. The antiproliferative activity on cancerous (M12.C3.F6, HeLa, A549, PC-3) and normal cell lines (L-929; ARPE-19) was assessed through MTT assays. Here, the main polyphenolic profile of SP resulted to be qualitatively similar to Populus fremontii resins (PFR). However, the antiproliferative activity of PFR on cancer cells did not consistently match that exhibited by SP throughout the year. Additionally, SP induced morphological modifications on treated cells characterised by elongation, similar to those induced by colchicine, and different to those observed with PFR treatment. These results suggest that P. fremontii is the main botanical source of SP along the year. Nevertheless, the antiproliferative constituents of SP that induce that characteristic morphological elongation on treated cells are not obtained from PFR. Moreover, the presence of kaempferol-3-methyl-ether in SP could point Ambrosia ambrosioides as a secondary plant source. In conclusion, SP is a bioactive poplar-type propolis from semi-arid zones, in which chemical compounds derived from other semi-arid plant sources than poplar contribute to its antiproliferative activity.
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Affiliation(s)
- Efrain Alday
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, 83000, Hermosillo, Sonora, Mexico
| | - Dora Valencia
- Department of Chemical Biological and Agropecuary Sciences, University of Sonora, Av. Universidad e Irigoyen, 83600, Caborca, Son., Mexico
| | - Adriana Garibay-Escobar
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, 83000, Hermosillo, Sonora, Mexico
| | - Zaira Domínguez-Esquivel
- Laboratorio de Química de productos Naturales, Unidad de Servicios de Apoyo en Resolución Analítica, Universidad Veracruzana, Dr. Luis Castelazo Ayala S/N, 575, 91190, Xalapa, Veracruz, Mexico
| | - Anna Lisa Piccinelli
- Dipartimento di Farmacia, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, SA, Italy
| | - Luca Rastrelli
- Dipartimento di Farmacia, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, SA, Italy
| | - Juan Monribot-Villanueva
- Red de Estudios Moleculares Avanzados, Instituto de Ecología (INECOL) A.C., Clúster Científico y Tecnológico Biomimic®, Carretera antigua a Coatepec 351, 91070, Xalapa, Veracruz, Mexico
| | - José A Guerrero-Analco
- Red de Estudios Moleculares Avanzados, Instituto de Ecología (INECOL) A.C., Clúster Científico y Tecnológico Biomimic®, Carretera antigua a Coatepec 351, 91070, Xalapa, Veracruz, Mexico
| | - Ramón Enrique Robles-Zepeda
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, 83000, Hermosillo, Sonora, Mexico
| | - Javier Hernandez
- Laboratorio de Química de productos Naturales, Unidad de Servicios de Apoyo en Resolución Analítica, Universidad Veracruzana, Dr. Luis Castelazo Ayala S/N, 575, 91190, Xalapa, Veracruz, Mexico.
| | - Carlos Velazquez
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, 83000, Hermosillo, Sonora, Mexico.
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Coronado-Aceves EW, Gigliarelli G, Garibay-Escobar A, Zepeda RER, Curini M, López Cervantes J, Inés Espitia-Pinzón CI, Superchi S, Vergura S, Marcotullio MC. New Isoflavonoids from the extract of Rhynchosia precatoria (Humb. & Bonpl. ex Willd.) DC. and their antimycobacterial activity. J Ethnopharmacol 2017; 206:92-100. [PMID: 28506901 DOI: 10.1016/j.jep.2017.05.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 05/05/2017] [Accepted: 05/11/2017] [Indexed: 05/23/2023]
Abstract
ETHNOPHARMACOLOGY RELEVANCE The evaluation of the antimycobacterial activity of extracts of medicinal plants used by Mayos against tuberculosis and respiratory problems, allowed the identification of Rhynchosia precatoria (Humb. & Bonpl. ex Willd.) DC (Fabaceae) as the best candidate to find new antimycobacterial compounds. AIM OF THE STUDY To isolate and characterize the compounds of R. precatoria responsible for the inhibitory and bactericidal activity against Mycobacterium tuberculosis H37Rv and Mycobacterium smegmatis ATCC 700084. To determine antimycobacterial synergistic effect of pure compounds and their selectivity index towards Vero cells. MATERIALS AND METHODS A total of six flavonoids were purified by silica gel column chromatography. Structural elucidation of the isolated compounds was achieved by using 1D and 2D NMR spectroscopy techniques. The configuration at the C-3 chiral center was established by quantum mechanical calculation of the electronic circular dichroism (ECD) spectrum. In vitro inhibitory and bactericidal activity against M. tuberculosis and M. smegmatis were determined with the redox indicator Alamar Blue (resazurin). Synergy was determined by X/Y quotient. Cytotoxicity was measured by MTT assay. RESULTS The isolated compounds were identified as precatorin A (1), precatorin B (2), precatorin C (3), lupinifolin (4), cajanone (5) and lupinifolinol (6). Compounds 1-3 are new. Compounds 1 to 5 inhibited the growth of M. tuberculosis (MIC ≥31.25µg/mL); compounds 1, 2, 4 and 5 killed the bacteria (MBC ≥31.25µg/mL) and also inhibited M. smegmatis (MIC ≥125µg/mL), while 1 and 4 also resulted bactericidal (MBC ≥125µg/mL). Compounds 4 and 5 presented synergistic effect (X/Y quotient value <0.5) at a concentration of 1/2 MIC of each compound in the combination. Cytotoxicity in murine macrophages (RAW 264.7 cells) gave IC50 values of 13.3-46.98µM, for compounds 1-5. CONCLUSIONS In this work we isolated two new isoflavanones (1 and 2), and one new isoflavone (3) with a weak antimycobacterial activity. The (3R) absolute configuration was assigned to 1 by computational analysis of its ECD spectrum and to 2 and 5 by similarity of their ECD spectra with that of 1. We are also reporting by first time, activity against virulent strain of M. tuberculosis for compounds 4 and 5 and their antimycobacterial synergistic effect.
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Affiliation(s)
- Enrique Wenceslao Coronado-Aceves
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora 83000, Mexico; Department of Biotechnology and Alimentary Sciences, Technological Institute of Sonora, 5 de Febrero 818 Sur, 85000 Ciudad Obregon, Sonora, Mexico
| | - Giulia Gigliarelli
- Department of Pharmaceutical Sciences, University of Perugia, via del Liceo, 1-06123 Perugia, Italy
| | - Adriana Garibay-Escobar
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora 83000, Mexico
| | - Ramón Enrique Robles Zepeda
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora 83000, Mexico
| | - Massimo Curini
- Department of Pharmaceutical Sciences, University of Perugia, via del Liceo, 1-06123 Perugia, Italy
| | - Jaime López Cervantes
- Department of Biotechnology and Alimentary Sciences, Technological Institute of Sonora, 5 de Febrero 818 Sur, 85000 Ciudad Obregon, Sonora, Mexico
| | - Clara Inés Inés Espitia-Pinzón
- Immunology Department, Biomedical Research Institute, National Autonomous University of Mexico, 04510 DF, Mexico, Mexico
| | - Stefano Superchi
- Department of Sciences, University of Basilicata, Via dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Stefania Vergura
- Department of Sciences, University of Basilicata, Via dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Maria Carla Marcotullio
- Department of Pharmaceutical Sciences, University of Perugia, via del Liceo, 1-06123 Perugia, Italy.
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Quintero J, Valdez A, Samaniego B, Lopez-Romero G, Astiazaran-Garcia H, Rascon L, Breci L, Garibay-Escobar A, Robles-Zepeda R, Velazquez C. Isolation and partial characterization of an immunogenic antigen of Giardia lamblia. Parasitol Int 2017; 66:324-330. [DOI: 10.1016/j.parint.2017.01.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 11/26/2016] [Accepted: 01/13/2017] [Indexed: 11/26/2022]
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Lopez-Romero G, Garzon T, Rascon R, Valdez A, Quintero J, Arvizu-Flores AA, Garibay-Escobar A, Rascon L, Astiazarán-García H, Velazquez C. Characterization of BIP protein of G. lamblia as a potential immunogen in a mouse infection model. Immunobiology 2017; 222:884-891. [PMID: 28552268 DOI: 10.1016/j.imbio.2017.05.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 03/25/2017] [Accepted: 05/14/2017] [Indexed: 12/11/2022]
Abstract
Giardia lamblia is a protozoan parasite that causes one of the most common gastrointestinal diseases worldwide. To eliminate the parasite from the host intestine, it is necessary the activation of B-cell and T-cell dependent mechanisms. The knowledge about Giardia antigens that can stimulate the host immune response is limited. Recently, it has been described the Binding Immunoglobulin Protein (BIP) of G. lamblia (71kDa) as a potential immunogen. Additionally, our group has identified a highly immunogenic antigen (5G8 protein) of G. lamblia with a relative molecular mass of approximately 70kDa. There is some evidence suggesting that the 5G8 protein may activate both humoral and cellular immune responses. Based on these observations and preliminary mass spectrometry analyses, we hypothesized that the antigen 5G8 could be the BIP protein. In the present study, we characterize immunochemically the BIP protein of Giardia. Flow cytometric assays and western blotting were used to determine the expression profile of BIP and 5G8 antigens in Giardia trophozoites. The differences in expression profile indicated that BIP and 5G8 are not the same molecule. ELISA and Western blotting assays revealed that BIP protein was recognized by antibodies produced during G. lamblia infection in C3H/HeN mice. MTT assays did not reveal the activation of cellular immune response induced by BIP protein in vitro. In addition, we identified the potential B-cell and T-cell epitopes of G. lamblia BIP protein. This molecule is a conserved protein among Giardia strains and other pathogens. The complete immunological characterization of this antigen will contribute to a better understanding of the host-parasite interactions in Giardia infection.
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Affiliation(s)
- Gloria Lopez-Romero
- Coordinación de Nutrición, Centro de Investigación en Alimentación y Desarrollo A.C. Hermosillo, Sonora, Mexico
| | - Thania Garzon
- Department of Chemistry-Biology, University of Sonora, Hermosillo, Sonora, Mexico
| | - Raul Rascon
- Department of Chemistry-Biology, University of Sonora, Hermosillo, Sonora, Mexico
| | - Alejandra Valdez
- Department of Chemistry-Biology, University of Sonora, Hermosillo, Sonora, Mexico
| | - Jael Quintero
- Health Science Department, University of Sonora, Blvd Bordo Nuevo s/n, Ejido Providencia, 85199 Cd. Obregon, Sonora, Mexico
| | - Aldo A Arvizu-Flores
- Department of Chemistry-Biology, University of Sonora, Hermosillo, Sonora, Mexico
| | | | - Lucila Rascon
- Department of Chemistry-Biology, University of Sonora, Hermosillo, Sonora, Mexico
| | - Humberto Astiazarán-García
- Coordinación de Nutrición, Centro de Investigación en Alimentación y Desarrollo A.C. Hermosillo, Sonora, Mexico
| | - Carlos Velazquez
- Department of Chemistry-Biology, University of Sonora, Hermosillo, Sonora, Mexico.
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Rascón-Valenzuela LA, Velázquez C, Garibay-Escobar A, Vilegas W, Medina-Juárez LA, Gámez-Meza N, Robles-Zepeda RE. Apoptotic activities of cardenolide glycosides from Asclepias subulata. J Ethnopharmacol 2016; 193:303-311. [PMID: 27545974 DOI: 10.1016/j.jep.2016.08.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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: 12/10/2015] [Revised: 08/09/2016] [Accepted: 08/18/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Asclepias subulata Decne. (Apocynaceae) is a shrub occurring in Sonora-Arizona desert. The ethnic groups of Sonora, Mexico, Seris and Pimas, use this plant for the treatment of sore eyes, gastrointestinal disorders and cancer. AIM OF THE STUDY To determine the cell death pathways that the cardenolide glycosides with antiproliferative activity found in the methanol extract of A. subulata are able to activate. MATERIALS AND METHODS The effect of cardenolide glycosides isolated of A. subulata on induction of apoptosis in cancer cells was evaluated through the measuring of several key events of apoptosis. A549 cells were treated for 12h with doses of 3.0, 0.2, 3.0 and 1.0µM of 12, 16-dihydroxicalotropin, calotropin, corotoxigenin 3-O-glucopyranoside and desglucouzarin, respectively. Apoptotic and necrotic cell levels were measured by double staining with annexin V-FITC/PI. Mitochondrial membrane depolarization was examined through JC-1 staining. Apoptosis cell death and the apoptosis pathways activated by cardenolide glycosides isolated of A. subulata were further characterized by the measurement of caspase-3, caspase-8 and caspase-9 activity. RESULTS Apoptotic assays showed that the four cardenolide glycosides isolated of A. subulata induced apoptosis in A549 cells, which was evidencing by phosphatidylserine externalization in 18.2%, 17.0%, 23.9% and 22.0% for 12, 16-dihydroxicalotropin, calotropin, corotoxigenin 3-O-glucopyranoside and desglucouzarin, respectively, compared with 4.6% of control cells. Cell death was also associated with a decrease in mitochondrial membrane potential, which was more than 75% in the treated cultures respect to control. The activation of caspase-3 was observed in all cardenolide glycosides-treated cancer cells indicating the caspase-dependent apoptosis of A549 cells. Extrinsic and intrinsic apoptosis pathways were activated by cardenolide glycosides treatment at the doses tested. CONCLUSION In this study was found that cardenolide glycosides, 12, 16-dihydroxicalotropin, calotropin, corotoxigenin 3-O-glucopyranoside and desglucouzarin, isolated from A. subulata induced the cell death trough caspase-dependent apoptosis, which was activated, preferably, by extrinsic pathway.
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Affiliation(s)
- L A Rascón-Valenzuela
- Departamento de Investigaciones Científicas y Tecnológicas de la Universidad de Sonora, División de Ciencias Biológicas y de la Salud, Universidad de Sonora, Blvd. Colosio s/n, entre Sahuaripa y Reforma Colonia Centro, C.P. 83000 Hermosillo, Sonora, México
| | - C Velázquez
- Departamento de Ciencias Químico Biológicas, División de Ciencias Biológicas y de la Salud, Universidad de Sonora, Encinas y Rosales Hermosillo, Sonora, México.
| | - A Garibay-Escobar
- Departamento de Ciencias Químico Biológicas, División de Ciencias Biológicas y de la Salud, Universidad de Sonora, Encinas y Rosales Hermosillo, Sonora, México
| | - W Vilegas
- UNESP - São Paulo State University - Institute of Biosciences, Coastal Campus of São Vicente, Brasil
| | - L A Medina-Juárez
- Departamento de Investigaciones Científicas y Tecnológicas de la Universidad de Sonora, División de Ciencias Biológicas y de la Salud, Universidad de Sonora, Blvd. Colosio s/n, entre Sahuaripa y Reforma Colonia Centro, C.P. 83000 Hermosillo, Sonora, México
| | - N Gámez-Meza
- Departamento de Investigaciones Científicas y Tecnológicas de la Universidad de Sonora, División de Ciencias Biológicas y de la Salud, Universidad de Sonora, Blvd. Colosio s/n, entre Sahuaripa y Reforma Colonia Centro, C.P. 83000 Hermosillo, Sonora, México
| | - R E Robles-Zepeda
- Departamento de Ciencias Químico Biológicas, División de Ciencias Biológicas y de la Salud, Universidad de Sonora, Encinas y Rosales Hermosillo, Sonora, México.
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Coronado-Aceves EW, Velázquez C, Robles-Zepeda RE, Jiménez-Estrada M, Hernández-Martínez J, Gálvez-Ruiz JC, Garibay-Escobar A. Reynosin and santamarine: two sesquiterpene lactones from Ambrosia confertiflora with bactericidal activity against clinical strains of Mycobacterium tuberculosis. Pharm Biol 2016; 54:2623-2628. [PMID: 27180996 DOI: 10.3109/13880209.2016.1173067] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
CONTEXT Tuberculosis is primarily caused by Mycobacterium tuberculosis (Mtb). Previous studies have shown that the dichloromethanic extract of Ambrosia confertiflora DC (Asteraceae) inhibited Mtb. OBJECTIVE To isolate the compounds responsible for the mycobactericidal activity against clinical Mtb strains. MATERIALS AND METHODS The dichloromethanic extract of aerial parts of A. confertiflora was separated using chromatography columns. Mycobactericidal activity of the isolated compounds was evaluated using the Alamar Blue bioassay (128-16 μg/mL, 7 days). Cytotoxicity was tested against normal cell line L929 using the MTT ([3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium]) assay (100-3.125 μg/mL, 48 h). Compound structures were elucidated by 1H and 13C uni- and bidimensional NMR. RESULTS Two sesquiterpene lactones (SQLs) with mycobactericidal activity were identified: santamarine and reynosin. Reynosin was the most active compound, with a minimal bactericidal concentration (MBC) of 128 μg/mL against the H37Rv, 366-2009 and 104-2010 Mtb strains and a minimal inhibitory concentration (MIC) of 64, 64, 128, 128 and 128 μg/mL against the H37Rv, 104-2010, 63-2009, 366-2009 and 430-2010 Mtb strains, respectively. Santamarine had MBCs of 128 μg/mL against the H3Rv and 104-2010 Mtb strains and MICs of 128 μg/mL against the H37Rv, 366-2009 and 104-2010 Mtb strains. We also isolated 1,10-epoxyparthenolide but only showed mycobacteriostatic activity (MIC 128 μg/mL) against the Mtb strain. Compounds were tested against the L929 cell line and the calculated selectivity index was <1. DISCUSSION AND CONCLUSIONS This is the first report of the mycobactericidal activity of these compounds against clinical Mtb strains. It is also the first report of the isolation of 1,10-epoxyparthenolide from A. confertiflora. The anti-mycobacterial activity of A. confertiflora was attributed to the SQLs identified.
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Affiliation(s)
| | - Carlos Velázquez
- a Departamento de Ciencias Químico Biológicas , Universidad de Sonora , Hermosillo , Sonora , México
| | | | - Manuel Jiménez-Estrada
- b Instituto de Química, Universidad Nacional Autónoma de México , Distrito Federal , México
| | - Javier Hernández-Martínez
- c Unidad de Servicios de Apoyo en Resolución Analítica (SARA), Universidad Veracruzana , Xico, Veracruz , México
| | - Juan Carlos Gálvez-Ruiz
- a Departamento de Ciencias Químico Biológicas , Universidad de Sonora , Hermosillo , Sonora , México
| | - Adriana Garibay-Escobar
- a Departamento de Ciencias Químico Biológicas , Universidad de Sonora , Hermosillo , Sonora , México
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Gastelum-Aviña P, Lares-Villa F, Espitia C, Valenzuela O, Robles-Zepeda R, Velazquez C, Garibay-Escobar A. A rapid alternative method to evaluate T-cell hybridoma activation using an improved cytokine (IL-2) secretion assay. J Immunol Methods 2016; 438:42-50. [PMID: 27592266 DOI: 10.1016/j.jim.2016.08.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 08/26/2016] [Accepted: 08/29/2016] [Indexed: 11/15/2022]
Abstract
T-cell hybridoma assays have been widely used for the in vitro study of antigen processing and presentation because they represent an unlimited source of cells and they bypass the difficulty of maintaining T-cell clones in culture. One of the most widely used methods to assess hybridoma activation is measurement of CTLL-2 cell proliferation, which is dependent on IL-2. However, continuous culture of this cell line results in a loss of sensitivity, and significant interassay variability can occur. Therefore, our goal was to develop a method to assess T-cell hybridoma activation that was fast and sensitive with low variability based on the IL-2 secretion assay. The assay used flow cytometry detection and employed the hen egg lysozyme (HEL)-specific 3A9 hybridoma as a model. The original murine IL-2 secretion assay protocol from Miltenyi Biotec® was tested and modified; the conjugated capture antibody (anti-CD45-anti-IL-2) was added together with the stimulus at the beginning of the antigen presentation assay instead of after antigenic stimulation. With this modification, the percentage of detectable CD4+IL-2+ cells following HEL stimulation rose from 4.5% with the original protocol (0.8% without stimulus) to 94.1% (0.8% without stimulus) with the newly proposed method under the conditions evaluated in this study. This modification allowed us to evaluate the activation of hybridomas directly and more rapidly (~18h) than the reference method that assayed CTLL-2 cell proliferation using the MTT reduction assay (~48h). In conclusion, the proposed method offered a rapid alternative for screening T-cell hybridomas and evaluating their antigen-specific activation.
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Affiliation(s)
- Paola Gastelum-Aviña
- Departamento de Ciencias Agronómicas y Veterinarias, Instituto Tecnológico de Sonora, 5 de febrero 818 sur., Cd. Obregón, Sonora 85000, Mexico; Departamento de Ciencias Químico-Biológicas, Universidad de Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora 83000, Mexico
| | - Fernando Lares-Villa
- Departamento de Ciencias Agronómicas y Veterinarias, Instituto Tecnológico de Sonora, 5 de febrero 818 sur., Cd. Obregón, Sonora 85000, Mexico
| | - Clara Espitia
- Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Apartado Postal 70228, Mexico D.F. 04510, Mexico
| | - Olivia Valenzuela
- Departamento de Ciencias Químico-Biológicas, Universidad de Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora 83000, Mexico
| | - Ramon Robles-Zepeda
- Departamento de Ciencias Químico-Biológicas, Universidad de Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora 83000, Mexico
| | - Carlos Velazquez
- Departamento de Ciencias Químico-Biológicas, Universidad de Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora 83000, Mexico.
| | - Adriana Garibay-Escobar
- Departamento de Ciencias Químico-Biológicas, Universidad de Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora 83000, Mexico.
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Coronado-Aceves EW, Sánchez-Escalante JJ, López-Cervantes J, Robles-Zepeda RE, Velázquez C, Sánchez-Machado DI, Garibay-Escobar A. Antimycobacterial activity of medicinal plants used by the Mayo people of Sonora, Mexico. J Ethnopharmacol 2016; 190:106-115. [PMID: 27262564 DOI: 10.1016/j.jep.2016.05.064] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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: 02/22/2016] [Revised: 05/24/2016] [Accepted: 05/31/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tuberculosis (TB) is an infectious disease mainly caused by Mycobacterium tuberculosis (Mtb), which generates 9 million new cases worldwide each year. The Mayo ethnicity of southern Sonora, Mexico is more than 2000 years old, and the Mayos possess extensive knowledge of traditional medicine. AIMS OF THE STUDY To evaluate the antimycobacterial activity levels of extracts of medicinal plants used by the Mayos against Mtb and Mycobacterium smegmatis (Msm) in the treatment of TB, respiratory diseases and related symptoms. MATERIALS AND METHODS A total of 34 plant species were collected, and 191 extracts were created with n-hexane, dichloromethane, ethyl acetate (EtOAc), methanol and water. Their minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs) were determined against Mtb H37Rv using the microplate alamar blue assay (MABA) and against Msm using the resazurin microplate assay (REMA) at 6 and 2 days of exposure, respectively, and at concentrations of 250-1.9µg/mL (n-hexane extracts) and 1000-7.81µg/mL (extracts obtained with dichloromethane, EtOAc, methanol and water). RESULTS Rhynchosia precatoria (Willd.) DC. (n-hexane root extract), Euphorbia albomarginata Torr. and A. Gray. (EtOAc shoot extract) and Helianthus annuus L. (n-hexane stem extract) were the most active plants against Mtb H37Rv, with MICs of 15.6, 250, 250µg/mL and MBCs of 31.25, 250, 250µg/mL, respectively. R. precatoria (root) was the only active plant against Msm, with MIC and MBC values of ≥250µg/mL. None of the aqueous extracts were active. CONCLUSIONS This study validates the medicinal use of certain plants used by the Mayo people in the treatment of TB and related symptoms. R. precatoria, E. albomarginata and H. annuus are promising plant sources of active compounds that act against Mtb H37Rv. To our knowledge, this is the first time that their antimycobacterial activity has been reported. Crude extracts obtained with n-hexane, EtOAc and dichloromethane were the most active against Mtb H37Rv.
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Affiliation(s)
- Enrique Wenceslao Coronado-Aceves
- Departamento de Biotecnología y Ciencias Alimentarias, Instituto Tecnológico de Sonora, 5 de Febrero 818 Sur, 85000 Ciudad Obregón, Sonora, Mexico
| | - José Jesús Sánchez-Escalante
- Herbario USON, Departamento de Investigaciones Científicas y Tecnológicas, Universidad de Sonora, Niños Héroes entre Rosales y José María Pino Suárez, Edificio 1A (Museo), Colonia Centro, 83000 Hermosillo, Sonora, Mexico
| | - Jaime López-Cervantes
- Departamento de Biotecnología y Ciencias Alimentarias, Instituto Tecnológico de Sonora, 5 de Febrero 818 Sur, 85000 Ciudad Obregón, Sonora, Mexico
| | - Ramón Enrique Robles-Zepeda
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Encinas y Rosales, Colonia Centro, 83000 Hermosillo, Sonora, Mexico
| | - Carlos Velázquez
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Encinas y Rosales, Colonia Centro, 83000 Hermosillo, Sonora, Mexico
| | - Dalia Isabel Sánchez-Machado
- Departamento de Biotecnología y Ciencias Alimentarias, Instituto Tecnológico de Sonora, 5 de Febrero 818 Sur, 85000 Ciudad Obregón, Sonora, Mexico
| | - Adriana Garibay-Escobar
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Encinas y Rosales, Colonia Centro, 83000 Hermosillo, Sonora, Mexico.
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Carrillo-Torres RC, García-Soto MJ, Morales-Chávez SD, Garibay-Escobar A, Hernández-Paredes J, Guzmán R, Barboza-Flores M, Álvarez-Ramos ME. Hollow Au–Ag bimetallic nanoparticles with high photothermal stability. RSC Adv 2016. [DOI: 10.1039/c5ra25821a] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We report the synthesis of hollow Au–Ag bimetallic nanoparticles with high photothermal stability under NIR irradiation.
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Affiliation(s)
- R. C. Carrillo-Torres
- Departamento de Física
- Universidad de Sonora
- Blvd. Luis Encinas y Rosales sn. Col. Centro
- Hermosillo
- Mexico
| | - M. J. García-Soto
- Department of Chemical and Environmental Engineering
- The University of Arizona
- Tucson
- USA
| | - S. D. Morales-Chávez
- Departamento de Ciencias Químico Biológicas
- División de Ciencias Biológicas y de la Salud
- Universidad de Sonora
- Hermosillo
- Mexico
| | - A. Garibay-Escobar
- Departamento de Ciencias Químico Biológicas
- División de Ciencias Biológicas y de la Salud
- Universidad de Sonora
- Hermosillo
- Mexico
| | - J. Hernández-Paredes
- Departamento de Física
- Universidad de Sonora
- Blvd. Luis Encinas y Rosales sn. Col. Centro
- Hermosillo
- Mexico
| | - R. Guzmán
- Department of Chemical and Environmental Engineering
- The University of Arizona
- Tucson
- USA
| | - M. Barboza-Flores
- Departamento de Investigación en Física
- Universidad de Sonora
- Hermosillo
- Mexico
| | - M. E. Álvarez-Ramos
- Departamento de Física
- Universidad de Sonora
- Blvd. Luis Encinas y Rosales sn. Col. Centro
- Hermosillo
- Mexico
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Munguía-Soto R, García-Rendón A, Garibay-Escobar A, Guerrero-Germán P, Tejeda-Mansir A. Segregated growth kinetics ofEscherichia coliDH5α-NH36 in exponential-fed perfusion culture for pDNA vaccine production. Biotechnol Appl Biochem 2015; 62:795-805. [DOI: 10.1002/bab.1339] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 12/23/2014] [Indexed: 02/03/2023]
Affiliation(s)
- Rodolfo Munguía-Soto
- Posgrado en Ciencias de la Ingeniería, Universidad de Sonora; Hermosillo; Sonora México
| | - Aurora García-Rendón
- Posgrado en Ciencias de la Ingeniería, Universidad de Sonora; Hermosillo; Sonora México
| | - Adriana Garibay-Escobar
- Departamento de Ciencias Químico Biológicas; Universidad de Sonora; Hermosillo; Sonora México
| | - Patricia Guerrero-Germán
- Departamento de Ingeniería Química y Metalurgia; Universidad de Sonora, Hermosillo; Sonora México
| | - Armando Tejeda-Mansir
- Departamento de Investigaciones Científicas y Tecnológicas; Universidad de Sonora; Hermosillo; Sonora México
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Rascón-Valenzuela L, Velázquez C, Garibay-Escobar A, Medina-Juárez LA, Vilegas W, Robles-Zepeda RE. Antiproliferative activity of cardenolide glycosides from Asclepias subulata. J Ethnopharmacol 2015; 171:280-286. [PMID: 26068432 DOI: 10.1016/j.jep.2015.05.057] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [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: 03/09/2015] [Revised: 05/17/2015] [Accepted: 05/30/2015] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Asclepias subulata Decne. is a shrub occurring in Sonora-Arizona desert (Mexico-USA). The ethnic groups, Seris and Pimas, use this plant for the treatment of sore eyes, gastrointestinal disorders and cancer. AIM OF THE STUDY To isolate the compounds responsible for antiproliferative activity of the methanol extract of A. subulata. MATERIALS AND METHODS A bioguided fractionation of methanol extract of A. subulata was performed using MTT assay to measure the antiproliferative activity of different compounds on three human cancer cell lines (A549, LS 180 and PC-3), one murine cancer cell line (RAW 264.7) and one human normal cell line (ARPE-19). The methanol extract was partitioned with hexane, ethyl acetate and ethanol. The active fractions, ethanol and residual, were fractioned by silica-column chromatography and active sub-fractions were separated using HPLC. The chemical structures of isolated compounds were elucidated with different chemical and spectroscopic methods. RESULTS A new cardenolide glycoside, 12, 16-dihydroxycalotropin, and three known, calotropin, corotoxigenin 3-O-glucopyranoside and desglucouzarin, were isolated of active sub-fractions. All isolated compounds showed a strong antiproliferative activity in human cancer cells. Calotropin was the more active with IC50 values of 0.0013, 0.06 and 0.41 µM on A549, LS 180 and PC-3 cell lines, respectively; while 12, 16-dihydroxycalotropin reached values of 2.48, 5.62 and 11.70 µM, on the same cells; corotoxigenin 3-O-glucopyranoside had IC50 of 2.64, 3.15 and 6.62 µM and desglucouzarin showed values of 0.90, 6.57 and 6.62, µM. Doxorubicin, positive control, showed IC50 values of 1.78, 6.99 and 3.18 µM, respectively. The isolated compounds had a weak effect on murine cancer cells and human normal cells, exhibiting selectivity to human cancer cells. CONCLUSION In this study, we found that 12, 16-dihydroxicalotropin, calotropin, corotoxigenin 3-O-glucopyranoside and desglucouzarin are responsible of antiproliferative properties of A. subulata, and that these compounds are highly selective to human cancer cells. Further studies are needed in order to establish the action mechanisms of the isolated compounds.
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Affiliation(s)
- L Rascón-Valenzuela
- Departamento de Investigaciones Científicas y Tecnológicas de la Universidad de Sonora, División de Ciencias Biológicas y de la Salud, Universidad de Sonora, Blvd. Colosio s/n, entre Sahuaripa y Reforma Colonia Centro, C.P. 83000 Hermosillo, Sonora México
| | - C Velázquez
- Departamento de Ciencias Químico Biológicas, División de Ciencias Biológicas y de la Salud, Universidad de Sonora, Encinas y Rosales Hermosillo, Sonora, México
| | - A Garibay-Escobar
- Departamento de Ciencias Químico Biológicas, División de Ciencias Biológicas y de la Salud, Universidad de Sonora, Encinas y Rosales Hermosillo, Sonora, México
| | - L A Medina-Juárez
- Departamento de Investigaciones Científicas y Tecnológicas de la Universidad de Sonora, División de Ciencias Biológicas y de la Salud, Universidad de Sonora, Blvd. Colosio s/n, entre Sahuaripa y Reforma Colonia Centro, C.P. 83000 Hermosillo, Sonora México
| | - W Vilegas
- UNESP-Universidade Estadual Paulista, Câmpus do Litoral Paulista, Praça Infante D. Henrique, s/n, CEP 11330-900 São Vicente, São Paulo, Brasil
| | - R E Robles-Zepeda
- Departamento de Ciencias Químico Biológicas, División de Ciencias Biológicas y de la Salud, Universidad de Sonora, Encinas y Rosales Hermosillo, Sonora, México.
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Alday-Provencio S, Diaz G, Rascon L, Quintero J, Alday E, Robles-Zepeda R, Garibay-Escobar A, Astiazaran H, Hernandez J, Velazquez C. Sonoran propolis and some of its chemical constituents inhibit in vitro growth of Giardia lamblia trophozoites. Planta Med 2015; 81:742-747. [PMID: 26008200 DOI: 10.1055/s-0035-1545982] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Propolis is a cereus resin with a complex chemical composition that possesses a wide range of biological activities. The aim of this study was to evaluate the in vitro anti-Giardia lamblia activity of Sonoran propolis collected from three different areas of Sonoran Desert in northwestern Mexico (Caborca, Pueblo de Alamos, and Ures) and some of its chemical constituents. Additionally, we also analyzed the seasonal effect on the anti-G. lamblia activity of propolis. G. lamblia trophozoite cultures were treated with different concentrations of Sonoran propolis or chemical compounds during 48 h cell proliferation and cell viability were determined. Ures propolis showed the highest inhibitory activity against G. lamblia (IC50 63.8 ± 7.1 µg/mL) in a dose-dependent manner (Ures > Pueblo de Alamos > Caborca). Season had a significant effect on the in vitro anti-G. lamblia activity of Ures propolis. Summer propolis showed the highest inhibitory effect on the G. lamblia trophozoite growth (IC50 23.8 ± 2.3 µg/mL), followed by propolis collected during winter (IC50 59.2 ± 34.7 µg/mL), spring (IC50 102.5 ± 15.3 µg/mL), and autumn (IC50 125.0 ± 3.1 µg/mL). Caffeic acid phenethyl ester, an Ures propolis exclusive constituent, had the highest growth-inhibitory activity towards G. lamblia [IC50 63.1 ± 0.9 µg/mL (222.1 ± 3.2 µM)]. To our knowledge, this is the first study showing that caffeic acid phenethyl ester possesses antiparasitic activity against G. lamblia. Naringenin [IC50 125.7 ± 20.7 µg/mL (461.8 ± 76.3 µM)], hesperetin [IC50 149.6 ± 24.8 µg/mL (494.9 ± 82.2 µM)], and pinocembrin [IC50 174.4 ± 26.0 µg/mL (680.6 ± 101.7 µM)] showed weak anti-G. lamblia activity. On the other hand, chrysin and rutin did not show significant antiparasitic activity. In conclusion, our results suggest that Sonoran propolis and some of its chemical constituents had inhibitory effects on the in vitro growth of G. lamblia trophozoites.
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Affiliation(s)
| | - Gabriela Diaz
- Department of Chemistry-Biology and Agropecuary Sciences, University of Sonora, Navojoa, Sonora, Mexico
| | - Lucila Rascon
- Department of Chemistry-Biology, University of Sonora, Hermosillo, Sonora, Mexico
| | - Jael Quintero
- Department of Chemistry-Biology, University of Sonora, Hermosillo, Sonora, Mexico
| | - Efrain Alday
- Department of Chemistry-Biology, University of Sonora, Hermosillo, Sonora, Mexico
| | - Ramón Robles-Zepeda
- Department of Chemistry-Biology, University of Sonora, Hermosillo, Sonora, Mexico
| | | | - Humberto Astiazaran
- Department of Nutrition and Metabolism, Centro de Investigación en Alimentación y Desarrollo A. C. Hermosillo, Sonora, México
| | - Javier Hernandez
- Unidad de Servicios de Apoyo en Resolución Analítica, Universidad Veracruzana, Xalapa, Veracruz, México
| | - Carlos Velazquez
- Department of Chemistry-Biology, University of Sonora, Hermosillo, Sonora, Mexico
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Gastelum-Aviña P, Velazquez C, Espitia C, Lares-Villa F, Garibay-Escobar A. A PE_PGRS33 protein ofMycobacterium tuberculosis: an ideal target for future tuberculosis vaccine design. Expert Rev Vaccines 2015; 14:699-711. [DOI: 10.1586/14760584.2015.1015995] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Leyva-Peralta MA, Robles-Zepeda RE, Garibay-Escobar A, Ruiz-Bustos E, Alvarez-Berber LP, Gálvez-Ruiz JC. In vitro anti-proliferative activity of Argemone gracilenta and identification of some active components. BMC Complement Altern Med 2015; 15:13. [PMID: 25652581 PMCID: PMC4321710 DOI: 10.1186/s12906-015-0532-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 01/19/2015] [Indexed: 11/19/2022]
Abstract
Background Cancer is one of the leading causes of death worldwide. Natural products have been regarded as important sources of potential chemotherapeutic agents. In this study, we evaluated the anti-proliferative activity of Argemone gracilenta’s methanol extract and its fractions. We identified those compounds of the most active fractions that displayed anti-proliferative activity. Methods The anti-proliferative activity on different cancerous cell lines (M12.C3F6, RAW 264.7, HeLa) was evaluated in vitro using the MTT colorimetric method. Identification of the active compounds present in the fractions with the highest activity was achieved by nuclear magnetic resonance (NMR) and gas chromatography-mass spectrometry (GC-MS) analyses. Results Both argemonine and berberine alkaloids, isolated from the ethyl acetate fraction, displayed high anti-proliferative activity with IC50 values of 2.8, 2.5, 12.1, and 2.7, 2.4, 79.5 μg/mL on M12.C3F6, RAW 264.7, and HeLa cancerous cell lines, respectively. No activity was shown on the normal L-929 cell line. From the hexane fraction, a mixture of fatty acids and fatty acid esters of 16 or more carbon atoms with anti-proliferative activity was identified, showing a range of IC50 values of 16.8-24.9, 34.1-35.4, and 67.6-91.8 μg/mL on M12.C3F6, RAW 264.7, and HeLa cancerous cell lines, respectively. On the normal L-929 cell line, this mixture showed a range of IC50 values of 85.1 to 100 μg/mL. Conclusion This is the first study that relates argemonine, berberine, and a mixture of fatty acids and fatty acid esters with the anti-proliferative activity displayed by Argemone gracilenta.
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Quintero J, Figueroa DC, Barcelo R, Breci L, Astiazaran-Garcia H, Rascon L, Robles-Zepeda R, Garibay-Escobar A, Velazquez-Contreras E, Avila GL, Hernandez-Hernandez JM, Velazquez C. Identification of an immunogenic protein of Giardia lamblia using monoclonal antibodies generated from infected mice. Mem Inst Oswaldo Cruz 2014; 108:616-22. [PMID: 23903978 PMCID: PMC3970608 DOI: 10.1590/0074-0276108052013013] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Accepted: 03/01/2013] [Indexed: 11/21/2022] Open
Abstract
The humoral immune response plays an important role in the clearance
of Giardia lamblia. However, our knowledge about the specific
antigens of G. lamblia that induce a protective immune response
is limited. The purpose of this study was to identify and characterise the
immunogenic proteins of G. lamblia in a mouse model. We
generated monoclonal antibodies (moAbs) specific to G. lamblia
(1B10, 2C9.D11, 3C10.E5, 3D10, 5G8.B5, 5F4, 4C7, 3C5 and 3C6) by fusing
splenocytes derived from infected mice. Most of these moAbs recognised a band of
± 71 kDa (5G8 protein) and this protein was also recognised by serum from the
infected mice. We found that the moAbs recognised conformational epitopes of the
5G8 protein and that this antigen is expressed on the cell surface and inside
trophozoites. Additionally, antibodies specific to the 5G8 protein induced
strong agglutination (> 70-90%) of trophozoites. We have thus identified a
highly immunogenic antigen of G. lamblia that is recognised by
the immune system of infected mice. In summary, this study describes the
identification and partial characterisation of an immunogenic protein of
G. lamblia. Additionally, we generated a panel of moAbs
specific for this protein that will be useful for the biochemical and
immunological characterisation of this immunologically interesting
Giardia molecule.
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Affiliation(s)
- Jael Quintero
- Department of Polymers and Materials, University of Sonora, Hermosillo, Sonora, México
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Valenzuela O, González-Díaz M, Garibay-Escobar A, Burgara-Estrella A, Cano M, Durazo M, Bernal RM, Hernandez J, Xiao L. Molecular characterization of Cryptosporidium spp. in children from Mexico. PLoS One 2014; 9:e96128. [PMID: 24755606 PMCID: PMC3996000 DOI: 10.1371/journal.pone.0096128] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [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: 03/06/2014] [Accepted: 04/02/2014] [Indexed: 11/19/2022] Open
Abstract
Cryptosporidiosis is a parasitic disease caused by Cryptosporidium spp. In immunocompetent individuals, it usually causes an acute and self-limited diarrhea; in infants, infection with Cryptosporidium spp. can cause malnutrition and growth retardation, and declined cognitive ability. In this study, we described for the first time the distribution of C. parvum and C. hominis subtypes in 12 children in Mexico by sequence characterization of the 60-kDa glycoprotein (GP60) gene of Cryptosporidium. Altogether, 7 subtypes belonging to 4 subtype families of C. hominis (Ia, Ib, Id and Ie) and 1 subtype family of C. parvum (IIa) were detected, including IaA14R3, IaA15R3, IbA10G2, IdA17, IeA11G3T3, IIaA15G2R1 and IIaA16G1R1. The frequency of the subtype families and subtypes in the samples analyzed in this study differed from what was observed in other countries.
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Affiliation(s)
- Olivia Valenzuela
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo, Sonora, México
- * E-mail:
| | - Mariana González-Díaz
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo, Sonora, México
| | - Adriana Garibay-Escobar
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo, Sonora, México
| | - Alexel Burgara-Estrella
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo, Sonora, México
| | - Manuel Cano
- Servicio de Infectología, Hospital Infantil del Estado de Sonora, Hermosillo, Sonora, México
| | - María Durazo
- Servicio de Infectología, Hospital Infantil del Estado de Sonora, Hermosillo, Sonora, México
| | - Rosa M. Bernal
- Laboratorio de Parasitología y Micología, Hospital Infantil de México Federico Gómez, México Distrito Federal, México
| | - Jesús Hernandez
- Laboratorio de Inmunologia, Centro de Investigación en Alimentación y Desarrollo A. C., Hermosillo, Sonora, México
| | - Lihua Xiao
- Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
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Robles-Zepeda RE, Coronado-Aceves EW, Velázquez-Contreras CA, Ruiz-Bustos E, Navarro-Navarro M, Garibay-Escobar A. In vitro anti-mycobacterial activity of nine medicinal plants used by ethnic groups in Sonora, Mexico. BMC Complement Altern Med 2013; 13:329. [PMID: 24267469 PMCID: PMC4222557 DOI: 10.1186/1472-6882-13-329] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/03/2013] [Accepted: 10/30/2013] [Indexed: 11/11/2022]
Abstract
Background Sonoran ethnic groups (Yaquis, Mayos, Seris, Guarijíos, Pimas, Kikapúes and Pápagos) use mainly herbal based preparations as their first line of medicinal treatment. Among the plants used are those with anti-tuberculosis properties; however, no formal research is available. Methods Organic extracts were obtained from nine medicinal plants traditionally used by Sonoran ethnic groups to treat different kinds of diseases; three of them are mainly used to treat tuberculosis. All of the extracts were tested against Mycobacterium tuberculosis H37Rv using the Alamar Blue redox bioassay. Results Methanolic extracts from Ambrosia confertiflora, Ambrosia ambrosioides and Guaiacum coulteri showed minimal inhibitory concentration (MIC) values of 200, 790 and 1000 μg/mL, respectively, whereas no effect was observed with the rest of the methanolic extracts at the concentrations tested. Chloroform, dichloromethane, and ethyl acetate extracts from Ambrosia confertiflora showed a MIC of 90, 120 and 160 μg/mL, respectively. Conclusions A. confertiflora and A. ambrosioides showed the best anti-mycobacterial activity in vitro. The activity of Guaiacum coulteri is consistent with the traditional use by Sonoran ethnic groups as anti-tuberculosis agent. For these reasons, it is important to investigate a broader spectrum of medicinal plants in order to find compounds active against Mycobacterium tuberculosis.
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Iñigo-Figueroa G, Méndez-Estrada RO, Quihui-Cota L, Velásquez-Contreras CA, Garibay-Escobar A, Canett-Romero R, Astiazarán-García H. Effects of dietary zinc manipulation on growth performance, zinc status and immune response during Giardia lamblia infection: a study in CD-1 mice. Nutrients 2013; 5:3447-60. [PMID: 24002196 PMCID: PMC3798913 DOI: 10.3390/nu5093447] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [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: 07/02/2013] [Revised: 08/13/2013] [Accepted: 08/15/2013] [Indexed: 12/31/2022] Open
Abstract
Associations between Giardia lamblia infection and low serum concentrations of zinc have been reported in young children. Interestingly, relatively few studies have examined the effects of different dietary zinc levels on the parasite-infected host. The aims of this study were to compare the growth performance and zinc status in response to varying levels of dietary zinc and to measure the antibody-mediated response of mice during G. lamblia infection. Male CD-1 mice were fed using 1 of 4 experimental diets: adequate-zinc (ZnA), low-zinc (ZnL), high-zinc (ZnH) and supplemented-zinc (ZnS) diet containing 30, 10, 223 and 1383 mg Zn/kg respectively. After a 10 days feeding period, mice were inoculated orally with 5 × 106G. lamblia trophozoites and were maintained on the assigned diet during the course of infection (30 days). Giardia-free mice fed ZnL diets were able to attain normal growth and antibody-mediated response. Giardia-infected mice fed ZnL and ZnA diets presented a significant growth retardation compared to non-infected controls. Zinc supplementation avoided this weight loss during G. lamblia infection and up-regulated the host’s humoral immune response by improving the production of specific antibodies. Clinical outcomes of zinc supplementation during giardiasis included significant weight gain, higher anti-G. lamblia IgG antibodies and improved serum zinc levels despite the ongoing infection. A maximum growth rate and antibody-mediated response were attained in mice fed ZnH diet. No further increases in body weight, zinc status and humoral immune capacity were noted by feeding higher zinc levels (ZnS) than the ZnH diet. These findings probably reflect biological effect of zinc that could be of public health importance in endemic areas of infection.
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Affiliation(s)
- Gemma Iñigo-Figueroa
- Departamento de Nutrición y Metabolismo, Coordinación de Nutrición, Centro de Investigación en Alimentación y Desarrollo, A.C. Carretera a La Victoria Km 0.6, Hermosillo, Sonora C.P. 83304, Mexico; E-Mails: (G.I.-F.); (R.O.M.-E.)
| | - Rosa O. Méndez-Estrada
- Departamento de Nutrición y Metabolismo, Coordinación de Nutrición, Centro de Investigación en Alimentación y Desarrollo, A.C. Carretera a La Victoria Km 0.6, Hermosillo, Sonora C.P. 83304, Mexico; E-Mails: (G.I.-F.); (R.O.M.-E.)
| | - Luis Quihui-Cota
- Departamento de Nutrición Pública y Salud, Coordinación de Nutrición, Centro de Investigación en Alimentación y Desarrollo, A.C. Carretera a La Victoria Km 0.6, Hermosillo, Sonora C.P. 83304, Mexico; E-Mail:
| | - Carlos A. Velásquez-Contreras
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora. Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora C.P. 83000, Mexico; E-Mails: (C.A.V.-C.); (A.G.-E.)
| | - Adriana Garibay-Escobar
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora. Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora C.P. 83000, Mexico; E-Mails: (C.A.V.-C.); (A.G.-E.)
| | - Rafael Canett-Romero
- Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora. Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora C.P. 83000, Mexico; E-Mail:
| | - Humberto Astiazarán-García
- Departamento de Nutrición y Metabolismo, Coordinación de Nutrición, Centro de Investigación en Alimentación y Desarrollo, A.C. Carretera a La Victoria Km 0.6, Hermosillo, Sonora C.P. 83304, Mexico; E-Mails: (G.I.-F.); (R.O.M.-E.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +52-662-289-24-00 (ext. 287); Fax: +52-662-280-00-94
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Jiménez-Estrada M, Velázquez-Contreras C, Garibay-Escobar A, Sierras-Canchola D, Lapizco-Vázquez R, Ortiz-Sandoval C, Burgos-Hernández A, Robles-Zepeda RE. In vitro antioxidant and antiproliferative activities of plants of the ethnopharmacopeia from northwest of Mexico. Altern Ther Health Med 2013; 13:12. [PMID: 23305162 PMCID: PMC3547710 DOI: 10.1186/1472-6882-13-12] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Accepted: 01/04/2013] [Indexed: 12/14/2022]
Abstract
Background The aim of this study, is to investigate the in vitro antioxidant activity, the total phenols content, the flavonoids content and the antiproliferative activity of methanolic extracts of the plants: Krameria erecta, Struthanthus palmeri, Phoradendron californicum, Senna covesii and Stegnosperma halimifolium, used by different ethnic groups from northwestern Mexico in the treatment and cure of various diseases. Methods The in vitro antioxidant activity was measured by 2,2-diphenyl-1-picrylhydrazyl (DPPH) and Ferric Reducing/Antioxidant Power assay (FRAP), the total phenols content was measured by Folin–Ciocalteau assay, the flavonoids content by the AlCl3 colorimetric method and the antiproliferative activity (line cells HeLa, RAW 264.7, M12Ak.C3.F6 and L929) using MTT method. Results The K. erecta extract showed the higher radical scavenging activity (67.88%), antioxidant activity by FRAP (1.41 mg Trolox Eq), the highest total phenols content (598.51 mg Galic Acid Eq/g extract), the highest flavonoids content (3.80 mg Quercetin Eq/g extract) and the greatest antiproliferative activity in a dose dependent manner against most Cell line evaluated. A positive correlation was found between the antioxidant activity and the flavonoids content. Conclusions This study is the first report on the antioxidant and antiproliferative activities of the five species evaluated. The results demostrate that there is a positive correlation between antioxidant activity and the flavonoids content, indicating that these type of polyphenols could be the major contributors to the observed antioxidant activity in the evaluated plant extracts. Of the extracts evaluated, that of Krameria erecta showed the greatest antioxidant and antiproliferative activities, a discovery that makes this species a promising candidate for future research.
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Iñigo-Figueroa G, Maldonado-Fonllem G, Quihui-Cota L, Mendez-Estrada RO, Velasquez-Contreras C, Canett-Romero R, Rascon-Duran L, Garibay-Escobar A, Robles-Zepeda R, Astiazaran-Garcia H. The Effect of Dietary Zinc Level over the IgG response in a Murine Model of Giardiasis. FASEB J 2012. [DOI: 10.1096/fasebj.26.1_supplement.1027.12] [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: 11/11/2022]
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Valencia D, Alday E, Robles-Zepeda R, Garibay-Escobar A, Galvez-Ruiz JC, Salas-Reyes M, Jiménez-Estrada M, Velazquez-Contreras E, Hernandez J, Velazquez C. Seasonal effect on chemical composition and biological activities of Sonoran propolis. Food Chem 2012. [DOI: 10.1016/j.foodchem.2011.08.086] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [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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Robles-Zepeda RE, Valenzuela-Antelo O, Garibay-Escobar A, Velázquez-Contreras C, Navarro-Navarro M, Contreras LR, Corral OL, Lozano-Taylor J. Use of complementary and alternative medicine in a region of northwest Mexico. J Altern Complement Med 2011; 17:787-8. [PMID: 21854196 DOI: 10.1089/acm.2011.0234] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Navarro-Navarro M, Robles-Zepeda RE, Garibay-Escobar A, Ruiz-Bustos E. Escherichia coli y Klebsiella pneumoniae comunitarias y hospitalarias productoras de β-lactamasas en hospitales de Hermosillo, Sonora. Salud pública Méx 2011; 53:341-4. [DOI: 10.1590/s0036-36342011000400009] [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] [Received: 09/01/2010] [Accepted: 08/01/2011] [Indexed: 11/21/2022] Open
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Robles-Zepeda RE, Velázquez-Contreras CA, Garibay-Escobar A, Gálvez-Ruiz JC, Ruiz-Bustos E. Antimicrobial activity of Northwestern Mexican plants against Helicobacter pylori. J Med Food 2011; 14:1280-3. [PMID: 21663492 DOI: 10.1089/jmf.2010.0263] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Helicobacter pylori is the major etiologic agent of such gastric disorders as chronic active gastritis and gastric carcinoma. Over the past few years, the appearance of antibiotic-resistant bacteria has led to the development of better treatments, such as the use of natural products. This study evaluated the anti-H. pylori activity of 17 Mexican plants used mainly in the northwestern part of Mexico (Sonora) for the empirical treatment of gastrointestinal disorders. The anti-H. pylori activity of methanolic extracts of the plants was determined by using the broth microdilution method. The 50% minimum inhibitory concentrations ranged from less than 200 to 400 μg/mL for Castella tortuosa, Amphipterygium adstringens, Ibervillea sonorae, Pscalium decompositum, Krameria erecta, Selaginella lepidophylla, Pimpinella anisum, Marrubium vulgare, Ambrosia confertiflora, and Couterea latiflora and were greater than 800 μg/mL for Byophyllum pinnatum, Tecoma stans linnaeus, Kohleria deppena, Jatropha cuneata, Chenopodium ambrosoides, and Taxodium macronatum. Only Equisetum gigantum showed no activity against H. pylori. This study suggests the important role that these plants may have in the treatment of gastrointestinal disorders caused by H. pylori. The findings set the groundwork for further characterization and elucidation of the active compounds responsible for such activity.
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Affiliation(s)
- Ramón E Robles-Zepeda
- Faculty of Biology and Biochemistry, Department of Chemical and Biological Sciences, University of Sonora, Hermosillo, Sonora, México
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Hernandez J, Velazquez C, Valenzuela O, Robles-Zepeda R, Ruiz-Bustos E, Navarro M, Garibay-Escobar A. Low Number of Peripheral Blood B Lymphocytes in Patients with Pulmonary Tuberculosis. Immunol Invest 2010; 39:197-205. [DOI: 10.3109/08820130903586346] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Ruiz-Bustos E, Velazquez C, Garibay-Escobar A, García Z, Plascencia-Jatomea M, Cortez-Rocha M, Hernandez-Martínez J, Robles-Zepeda R. Antibacterial and Antifungal Activities of Some Mexican Medicinal Plants. J Med Food 2009; 12:1398-402. [DOI: 10.1089/jmf.2008.0205] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- E. Ruiz-Bustos
- Cuerpo Académico Biología y Bioquímica, Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo, Sonora
| | - C. Velazquez
- Cuerpo Académico Biología y Bioquímica, Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo, Sonora
| | - A. Garibay-Escobar
- Cuerpo Académico Biología y Bioquímica, Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo, Sonora
| | - Z. García
- Cuerpo Académico Biología y Bioquímica, Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo, Sonora
| | - M. Plascencia-Jatomea
- Laboratorio de Micotoxinas, Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Hermosillo, Sonora
| | - M.O. Cortez-Rocha
- Laboratorio de Micotoxinas, Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Hermosillo, Sonora
| | - J. Hernandez-Martínez
- Unidad de Servicios de Apoyo en Resolución Analítica, Universidad Veracruzana, Xalapa, Veracruz, México
| | - R.E. Robles-Zepeda
- Cuerpo Académico Biología y Bioquímica, Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo, Sonora
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Astiazaran-Garcia H, Quintero J, Vega R, Briceño P, Oviedo C, Rascon L, Garibay-Escobar A, Castillo-Yañez FJ, Robles-Zepeda R, Hernandez J, Velazquez C. Identification of T-cell stimulating antigens from Giardia lamblia by using Giardia-specific T-cell hybridomas. Parasite Immunol 2009; 31:132-9. [PMID: 19222784 DOI: 10.1111/j.1365-3024.2008.01083.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
T-cell immune response plays an important role in controlling Giardia lamblia infections. Little is known about the G. lamblia-specific antigens that stimulate a cell-mediated immune response. The aim of the present study was to identify T-cell stimulating G. lamblia antigens. For this purpose, we generated a group of Giardia-specific T-cell hybridomas (2F9, 4D5, 6D10, 8B9, 9B10, 10F7 and 10G5). Hybridomas were screened for reactivity with G. lamblia protein extract by the CTLL bioassay. These T-cell hybridomas did not exhibit any significant activation either in the absence of G. lamblia protein extract or in the presence of irrelevant antigen (hen white egg lysozyme). To further characterize the T-cell hybridomas generated, we selected three hybridomas (10G5, 4D5 and 9B10). Giardia lamblia proteins of 90-110, 65-77 and 40-64 kDa showed T-cell stimulating activity for the hybridomas 10G5, 4D5 and 9B10, respectively, in a concentration-dependent manner. Protein extract obtained from different G. lamblia strains (GS/M-83-H7, WB C6 and a clinical isolate (YJJ)) stimulated all T-cell hybridomas, indicating that T-cell-stimulating antigens are expressed among different G. lamblia strains. In conclusion, we identified T-cell stimulating G. lamblia antigens by using Giardia-specific T-cell hybridomas. To our knowledge, these hybridomas are the first-described T-cell hybridomas specific for G. lamblia.
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Affiliation(s)
- H Astiazaran-Garcia
- Centro de Investigación en Alimentación y Desarrollo A.C. Hermosillo, Sonora, México
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Estrada-G I, Garibay-Escobar A, Núñez-Vázquez A, Hojyo-Tomoka T, Vega-Memije E, Cortés-Franco R, Pérez-Uribe A, Flores-Romo L, Santos-Argumedo L, Estrada-Parra S, Domínguez-Soto L. Evidence that thalidomide modifies the immune response of patients suffering from actinic prurigo. Int J Dermatol 2005; 43:893-7. [PMID: 15569010 DOI: 10.1111/j.1365-4632.2004.02274.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Actinic prurigo (AP) is a photodermatosis with a restricted ethnic distribution, mainly affecting Mestizo women (mixed Indian and European). The lesions are polymorphic and include macules, papules, crusts, hyperpigmentation and lichenification. Thalidomide, an effective immunomodulatory drug, was first used successfully to treat AP in 1973. In this work we describe the effect that thalidomide had on TNF-alpha sera levels and on IL-4- and IFN gamma (IFNgamma)-producing lymphocytes of actinic prurigo (AP) patients. METHODS Actinic prurigo patients were analyzed before and after thalidomide treatment. The percentage of IL-4+ or IFNgamma+ CD3+ lymphocytes was analyzed in eight of them by flow cytometry. TNFalpha in sera was measured by ELISA in 11 patients. RESULTS A direct correlation was observed between resolution of AP lesions and an increase in IFNgamma+ CD3+ peripheral blood mononuclear cells (P < or = 0.001) and a decrease in TNFalpha serum levels (no statistical difference). No IL-4+ CD3+ cells were detected. CONCLUSIONS Our findings confirm that AP is a disease that has an immunological component and that thalidomide clinical efficacy is exerted not only through inhibition of TNFalpha synthesis, but also through modulation of INFgamma-producing CD3+ cells. These cells could be used as clinical markers for recovery.
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Affiliation(s)
- Iris Estrada-G
- Depto. de Inmunología, Escuela Nacional de Ciencias Biológicas, IPN, Centro de Investigaciones y Estudios Avanzados, IPN, México, DF.
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López-Herrera G, Garibay-Escobar A, Alvarez-Zavala BJ, Esparza-García A, Galindo-Rujana ME, Flores-Romo L, Estrada-García I, Hernández-Pando R, Estrada-Parra S, Santos-Argumedo L. Severe combined immunodeficiency syndrome associated with colonic stenosis. Arch Med Res 2004; 35:348-58. [PMID: 15325511 DOI: 10.1016/j.arcmed.2004.04.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2004] [Accepted: 04/21/2004] [Indexed: 10/26/2022]
Abstract
BACKGROUND This is the first report in Mexico of a case of severe combined immunodeficiency syndrome (SCID) associated with colonic stenosis. The patient was an 8-month-old Mexican female who died at this age. She suffered infections due to microorganisms such as Mycobacterium tuberculosis, bacille Calmette-Guérin (BCG), Candida sp., and Pneumocystis carinii; and had frequent diarrhea. She was HIV-negative without familial history of immunodeficiency. The aim of the work was to analyze the immunologic status of this patient. METHODS Peripheral blood from the patient and from a healthy matched control were analyzed by flow cytometry to determine peripheral leukocytes and production of cytokines and their receptors in T-lymphocytes and monocytes. Immunohistochemical analysis was performed in spleen and lymph node sections from the patient and control samples to assess alterations in architectural and cellular distribution within these lymphoid tissues. RESULTS Peripheral blood analysis demonstrated reduced numbers of both T and B cells and defective expression of cytokines by activated T cells. Postmortem analysis revealed very small T and B cell zones in spleen and lymph nodes, absence of germinal centers and follicular dendritic cell networks, and two zones of stenosis at level of colon sigmoides. CONCLUSIONS As a whole, these data are consistent with severe combined immunodeficiency (SCID) syndrome; thus, we conclude that this patient may have had a variant of SCID syndrome associated with intestinal stenosis.
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Affiliation(s)
- Gabriela López-Herrera
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del IPN, Mexico City, 07360 Mexico
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Garibay-Escobar A, Estrada-García I, Estrada-Parra S, Santos-Argumedo L. Integrated measurements by flow cytometry of the cytokines IL-2, IFN-gamma, IL-12, TNF-alpha and functional evaluation of their receptors in human blood. J Immunol Methods 2003; 280:73-88. [PMID: 12972189 DOI: 10.1016/s0022-1759(03)00249-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Immunodeficiencies might be caused not only by the lack of cytokine production, but also by defective expression and/or function of the cytokine receptors. We have measured by flow cytometry, within 2 days, not only the production of IL-2, IFN-gamma, IL-12 and TNF-alpha, but also the functional expression of the receptors for these cytokines in blood samples obtained from 15 healthy donors and 13 patients suffering from tuberculosis. Cytoplasmic and surface staining with monoclonal antibodies (mAbs) was used to assess the production of cytokines and their receptors, respectively, after polyclonal stimulation. To evaluate receptor activity, peripheral blood mononuclear cells (PBMC) were first incubated with the corresponding recombinant human (rh) cytokine. CD69 was detected on lymphocytes after incubation with rhIL-2; IFN-gamma was detected in lymphocytes after co-stimulation with rhIL-12 plus PHA; iNOS induction and upregulation of major histocompatibility complex (MHC) II and MHC I was detected on monocytes after recombinant human interferon-gamma (rhIFN-gamma) stimulation; finally, COX-2 expression and MHC II upregulation were detected on monocytes after rhTNF-alpha stimulation. The assay that was developed can be used clinically to assess the activities of components of the cytokine signaling pathways of patients with immunodeficiencies or those with chronic intracellular infections such as tuberculosis.
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Affiliation(s)
- Adriana Garibay-Escobar
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México City, México
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Partida-Sánchez S, Garibay-Escobar A, Frixione E, Parkhouse RM, Santos-Argumedo L. CD45R, CD44 and MHC class II are signaling molecules for the cytoskeleton-dependent induction of dendrites and motility in activated B cells. Eur J Immunol 2000; 30:2722-8. [PMID: 11009108 DOI: 10.1002/1521-4141(200009)30:9<2723::aid-immu2722>3.0.co;2-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Anti-CD44 or anti-MHC II antibodies bound to tissue culture plates have previously been shown to induce a dramatic generation of dendritic processes in activated murine B cells. In this study, we demonstrate a similar generation of dendrites and cell motility in activated B cells through CD45R. The dynamic formation of dendritic processes and associated induction of cell motility were analyzed by video microscopy and were characterized by a rapid, and multidirectional emission of dendrites with retractile behavior. The addition of cytochalasin E totally blocked dendrites formation and motility induced through either CD45R, CD44 or MHC II, suggesting that the necessary cytoskeletal rearrangements require active polymerization of actin. Confocal microscopy showed an accumulation of F-actin in the dendrites, as long as cells were elongating. In contrast, G-actin was localized in the perinuclear area and also accumulated in sites where dendrites originated. Preincubation of B cells with staurosporine (a PKC inhibitor) or BAPTA-AM (a calcium chelator) prevented these morphological changes, indicating additionally a requirement for a PKC-calcium-dependent activity. Dendrite formation and cellular motility, therefore, seem to be two manifestations of the same phenomenon, and CD44, CD45R and MHC II appear to be signaling molecules for the observed cytoskeleton-dependent morphological changes.
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Affiliation(s)
- S Partida-Sánchez
- Department of Molecular Biomedicine, Centro de Investigación y Estudios Avanzados del IPN, México DF, México
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