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López-Monteon A, Balderas-Caballero AE, Domínguez-Guillén JA, Romero-Ramírez H, Baltierra-Uribe SL, Ramos-Ligonio A. Pfizer-BioNTech vaccine induces the production of cross-reactive antibodies against Trypanosoma cruzi proteins: A preliminary study. Trop Med Int Health 2023; 28:384-390. [PMID: 36879355 DOI: 10.1111/tmi.13869] [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] [Indexed: 03/08/2023]
Abstract
OBJECTIVE To evaluate the presence of cross-reactivity by anti-severe acute respiratory syndrome coronavirus 2 antibodies induced by the Pfizer-BioNTech vaccine against Trypanosoma cruzi proteins in a screening test. METHODS Forty-three serum samples were obtained from personnel at the Hospital General Naval de Alta Especialidad in Mexico City who received one or two doses of the vaccine and were tested for T. cruzi infection using four tests: two 'in house' enzyme-linked immunosorbent assays (ELISAs), a commercial ELISA diagnostic kit and an immunoblot test. RESULTS IgG antibodies against the T. cruzi proteins were present in the serum of unvaccinated subjects and subjects who had received one or two doses of the vaccine. The positivity of the samples against T. cruzi was ruled out by means of a Western Blot assay, where all samples were negative for T. cruzi. CONCLUSION The data suggest that people convalescing from coronavirus disease 2019 and those who received the Pfizer-BioNTech vaccine exhibit cross-reactive antibodies against T. cruzi antigens in ELISA assays.
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Affiliation(s)
- Aracely López-Monteon
- LADISER Inmunología y Biología Molecular, Facultad de Ciencias Químicas, Universidad Veracruzana, Orizaba, Mexico.,Asociacion Chagas con Ciencia y Conocimiento A.C. Orizaba, Veracruz, Mexico
| | | | | | | | | | - Angel Ramos-Ligonio
- LADISER Inmunología y Biología Molecular, Facultad de Ciencias Químicas, Universidad Veracruzana, Orizaba, Mexico.,Asociacion Chagas con Ciencia y Conocimiento A.C. Orizaba, Veracruz, Mexico
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2
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Barrientos-Robledo SG, Cebada-Ruiz JA, Rodríguez-Alba JC, Baltierra-Uribe SL, Díaz Y Orea MA, Romero-Ramírez H. CD38 a biomarker and therapeutic target in non-hematopoietic tumors. Biomark Med 2022; 16:387-400. [PMID: 35195042 DOI: 10.2217/bmm-2021-0575] [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] [Indexed: 11/21/2022] Open
Abstract
The type II transmembrane glycoprotein CD38 has recently been implicated in regulating metabolism and the pathogenesis of multiple conditions, including aging, inflammation and cancer. CD38 is overexpressed in several tumor cells and microenvironment tumoral cells, associated to migration, angiogenesis, cell invasion and progression of the disease. Thus, CD38 has been used as a progression marker for different cancer types as well as in immunotherapy. This review focuses on describing the involvement of CD38 in various non-hematopoietic cancers.
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Affiliation(s)
- Susana G Barrientos-Robledo
- Laboratorio de Inmunología Experimental, Benemérita Universidad Autónoma de Puebla, Facultad de Medicina, Puebla, Mexico
| | - Jorge A Cebada-Ruiz
- Laboratorio de Inmunología Experimental, Benemérita Universidad Autónoma de Puebla, Facultad de Medicina, Puebla, Mexico
| | - Juan C Rodríguez-Alba
- Unidad de Citometría de Flujo, Instituto de Ciencias de la Salud, Universidad Veracruzana, Xalapa, Veracruz, Mexico
| | - Shantal L Baltierra-Uribe
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Maria A Díaz Y Orea
- Laboratorio de Inmunología Experimental, Benemérita Universidad Autónoma de Puebla, Facultad de Medicina, Puebla, Mexico
| | - Héctor Romero-Ramírez
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados, Mexico City, Mexico
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3
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Villagomez FR, Diaz-Valencia JD, Ovalle-García E, Antillón A, Ortega-Blake I, Romero-Ramírez H, Cerna-Cortes JF, Rosales-Reyes R, Santos-Argumedo L, Patiño-López G. TBC1D10C is a cytoskeletal functional linker that modulates cell spreading and phagocytosis in macrophages. Sci Rep 2021; 11:20946. [PMID: 34686741 PMCID: PMC8536695 DOI: 10.1038/s41598-021-00450-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 06/02/2021] [Accepted: 10/11/2021] [Indexed: 12/14/2022] Open
Abstract
Cell spreading and phagocytosis are notably regulated by small GTPases and GAP proteins. TBC1D10C is a dual inhibitory protein with GAP activity. In immune cells, TBC1D10C is one of the elements regulating lymphocyte activation. However, its specific role in macrophages remains unknown. Here, we show that TBC1D10C engages in functions dependent on the cytoskeleton and plasma membrane reorganization. Using ex vivo and in vitro assays, we found that elimination and overexpression of TBC1D10C modified the cytoskeletal architecture of macrophages by decreasing and increasing the spreading ability of these cells, respectively. In addition, TBC1D10C overexpression contributed to higher phagocytic activity against Burkholderia cenocepacia and to increased cell membrane tension. Furthermore, by performing in vitro and in silico analyses, we identified 27 TBC1D10C-interacting proteins, some of which were functionally classified as protein complexes involved in cytoskeletal dynamics. Interestingly, we identified one unreported TBC1D10C-intrinsically disordered region (IDR) with biological potential at the cytoskeleton level. Our results demonstrate that TBC1D10C shapes macrophage activity by inducing reorganization of the cytoskeleton-plasma membrane in cell spreading and phagocytosis. We anticipate our results will be the basis for further studies focused on TBC1D10C. For example, the specific molecular mechanism in Burkholderia cenocepacia phagocytosis and functional analysis of TBC1D10C-IDR are needed to further understand its role in health and disease.
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Affiliation(s)
- Fabian R Villagomez
- Laboratorio de Investigación en Inmunología y Proteómica, Hospital Infantil de México, Federico Gómez, Ciudad de México, Mexico.,Laboratorio de Microbiología Molecular, Escuela Nacional de Ciencias Biológicas del Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - Juan D Diaz-Valencia
- Laboratorio de Investigación en Inmunología y Proteómica, Hospital Infantil de México, Federico Gómez, Ciudad de México, Mexico
| | - Erasmo Ovalle-García
- Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Cuernavaca, Mexico
| | - Armando Antillón
- Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Cuernavaca, Mexico
| | - Iván Ortega-Blake
- Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Cuernavaca, Mexico
| | - Héctor Romero-Ramírez
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad De México, Mexico
| | - Jorge F Cerna-Cortes
- Laboratorio de Microbiología Molecular, Escuela Nacional de Ciencias Biológicas del Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - Roberto Rosales-Reyes
- Laboratorio de Infectología, Microbiología e Inmunología Clínica, Unidad de Investigación en Medicina Experimental de la Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Leopoldo Santos-Argumedo
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad De México, Mexico
| | - Genaro Patiño-López
- Laboratorio de Investigación en Inmunología y Proteómica, Hospital Infantil de México, Federico Gómez, Ciudad de México, Mexico.
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4
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Baltierra-Uribe SL, Montañez-Barragán A, Romero-Ramírez H, Klimov-Kravtchenko K, Martínez-Pedro KI, Sánchez-Salguero E, Camorlinga-Ponce M, Torres J, Santos-Argumedo L. Colostrum IgA1 antibodies recognize antigens from Helicobacter pylori and prevent cytoskeletal changes in human epithelial cells. Eur J Immunol 2021; 51:2641-2650. [PMID: 34398472 DOI: 10.1002/eji.202049117] [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: 12/31/2020] [Revised: 06/11/2021] [Accepted: 08/13/2021] [Indexed: 11/06/2022]
Abstract
Helicobacter pylori is a gram-negative bacterium found on the luminal surface of the gastric mucosa in at least 50% of the world's human population. The protective effect of breastfeeding against H. pylori infection has been extensively reported; however, the mechanisms behind this protection remain poorly understood. Human IgA from colostrum has reactivity against H. pylori antigens. Despite that IgA1 and IgA2 display structural and functional differences, their reactivity against H. pylori had not been previously determined. We attested titers and reactivity of human colostrum-IgA subclasses by ELISA, immunoblot, and flow cytometry. Colostrum samples from healthy mothers had higher titers of IgA; and IgA1 mostly recognized H. pylori antigens. Moreover, we found a correlation between IgA1 reactivity and their neutralizing effect determined by inhibition of cytoskeletal changes in AGS cells infected with H. pylori. In conclusion, colostrum-IgA reduces H. pylori infection of epithelial gastric cells, suggesting an important role in preventing the bacteria establishment during the first months of life. As a whole, these results suggest that IgA1 from human colostrum provides protection that may help in the development of the mucosal immune system of newborn children. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Shantal Lizbeth Baltierra-Uribe
- Department of Molecular Biomedicine, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-IPN), Mexico City, Mexico
| | - Alejandra Montañez-Barragán
- Department of Molecular Biomedicine, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-IPN), Mexico City, Mexico
| | - Héctor Romero-Ramírez
- Department of Molecular Biomedicine, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-IPN), Mexico City, Mexico
| | - Ksenia Klimov-Kravtchenko
- Department of Molecular Biomedicine, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-IPN), Mexico City, Mexico.,University Center of Biological and Agricultural Sciences (CUCBA), University of Guadalajara, Zapopan, Jalisco, Mexico
| | - Karla Ivette Martínez-Pedro
- Department of Molecular Biomedicine, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-IPN), Mexico City, Mexico.,"La Cañada" University (UNCA), Oaxaca, Mexico
| | - Erick Sánchez-Salguero
- Department of Molecular Biomedicine, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-IPN), Mexico City, Mexico
| | - Margarita Camorlinga-Ponce
- Infectious and Parasitic Disease Medical Research Unit (UIMEIP) at Pediatric Hospital in National Medical Center (CMN- SIGLO XXI) Mexican Institute of Social Security (IMSS), Mexico City, Mexico
| | - Javier Torres
- Infectious and Parasitic Disease Medical Research Unit (UIMEIP) at Pediatric Hospital in National Medical Center (CMN- SIGLO XXI) Mexican Institute of Social Security (IMSS), Mexico City, Mexico
| | - Leopoldo Santos-Argumedo
- Department of Molecular Biomedicine, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-IPN), Mexico City, Mexico
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5
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Abrego-Peredo A, Romero-Ramírez H, Espinosa E, López-Herrera G, García-García F, Flores-Muñoz M, Sandoval-Montes C, Rodríguez-Alba JC. Naringenin mitigates autoimmune features in lupus-prone mice by modulation of T-cell subsets and cytokines profile. PLoS One 2020; 15:e0233138. [PMID: 32421738 PMCID: PMC7233587 DOI: 10.1371/journal.pone.0233138] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 04/28/2020] [Indexed: 11/19/2022] Open
Abstract
Naringenin is flavonoid mainly found in citrus fruits which has shown several biological properties. In this work, we evaluated the therapeutic potential of the flavonoid Naringenin. Five-month-old B6.MRL-Faslpr/J lupus-prone mice were administered daily orally with Naringenin for seven months. We showed that Naringenin treatment at 50 or 100 mg/kg inhibited the splenomegaly and decreased the levels of anti-nuclear and anti-dsDNA autoantibodies. Furthermore, a reduction in serum concentration of TNF-α, IFN-γ and IL-6 was observed in the mice provided with Naringenin. Interestingly, serum levels of IL-10 increased. Naringenin decreased the frequency and absolute numbers of splenic effector memory T cells. Additionally, in order to be able to evaluate whether Naringenin prevented kidney damage, twelve-week-old MRL/MpJ-Faslpr/J mice, an accelerated lupus model, were orally administered with Naringenin at 100 mg/kg for six weeks. Surprisingly, Naringenin treatment prevented kidney damage and reduced the development of fibrosis similar to cyclophosphamide group. Moreover, Naringenin treatment increased the percentage of regulatory T cells in this aggressive model of lupus. Together, these results suggest a potential ability of Naringenin to reduce the autoimmunity in lupus-prone mice by modulation of T-cell subsets and cytokines profile that mitigate the development of important lupus clinical manifestations.
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Affiliation(s)
- Amayrani Abrego-Peredo
- Programa de Doctorado en Ciencias de la Salud, Instituto de Ciencias de la Salud, Universidad Veracruzana, Xalapa, Veracruz, México
- Unidad de Citometría de Flujo, Instituto de Ciencias de la Salud, Universidad Veracruzana, Xalapa, Veracruz, Mexico
| | - Héctor Romero-Ramírez
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de México, México
| | - Enrique Espinosa
- Investigación en Inmunología Integrativa, Instituto Nacional de Enfermedades Respiratorias, Ciudad de México, México
| | - Gabriela López-Herrera
- Unidad de Investigación en Inmunodeficiencias, Instituto Nacional de Pediatría, Ciudad de México, México
| | - Fabio García-García
- Programa de Doctorado en Ciencias de la Salud, Instituto de Ciencias de la Salud, Universidad Veracruzana, Xalapa, Veracruz, México
- Laboratorio de Biología del Sueño, Instituto de Ciencias de la Salud, Universidad Veracruzana, Xalapa, Veracruz, México
| | - Mónica Flores-Muñoz
- Programa de Doctorado en Ciencias de la Salud, Instituto de Ciencias de la Salud, Universidad Veracruzana, Xalapa, Veracruz, México
- Laboratorio de Investigación en Medicina Traslacional, Instituto de Ciencias de la Salud, Universidad Veracruzana, Xalapa, Veracruz, México
| | - Claudia Sandoval-Montes
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, México
| | - Juan Carlos Rodríguez-Alba
- Programa de Doctorado en Ciencias de la Salud, Instituto de Ciencias de la Salud, Universidad Veracruzana, Xalapa, Veracruz, México
- Unidad de Citometría de Flujo, Instituto de Ciencias de la Salud, Universidad Veracruzana, Xalapa, Veracruz, Mexico
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6
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Sánchez-Salguero E, Mondragón-Ramírez GK, Alcántara-Montiel JC, Cérbulo-Vázquez A, Villegas-Domínguez X, Contreras-Vargas VM, Thompson-Bonilla MDR, Romero-Ramírez H, Santos-Argumedo L. Infectious episodes during pregnancy, at particular mucosal sites, increase specific IgA1 or IgA2 subtype levels in human colostrum. Matern Health Neonatol Perinatol 2019; 5:9. [PMID: 31205733 PMCID: PMC6558797 DOI: 10.1186/s40748-019-0104-x] [Citation(s) in RCA: 5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 05/12/2019] [Indexed: 12/14/2022] Open
Abstract
Background Colostrum is the primary source of maternal immunoglobulin A (IgA) for the newborn. IgA participates in protection and regulation mechanisms of the immune response at the neonate’s mucosa. Several studies have evaluated infectious diseases and vaccine protocols effects during pregnancy on maternal milk IgA levels, with the aim to understand lactation protecting effect on newborn. However, most of their results demonstrated that there were no differences in the total IgA levels. In humans, IgA has two subclasses (IgA1 and IgA2), they have an anatomical distribution among mucosal compartments, their levels vary after antigen stimulation and are also seen to describe differential affinities in colostrum. Although there are differences between IgA subclasses in several compartments, these studies have excluded specific colostrum IgA1 and IgA2 determination. Methods We analyzed data from 900 women in Mexico City. With Pearson correlation, we compared the number of infectious episodes during their pregnancy that was associated with mucosal compartments (skin, respiratory and gastrointestinal tracts) and colostrum IgA subclasses. Results We show a correlation between increased colostrum IgA1 levels and the number of infectious episodes at respiratory tract and the skin. In contrast, infections at the gastrointestinal tract correlated with increased IgA2 amounts. Conclusions Infections present during pregnancy at certain mucosal site increase specific IgA subclasses levels in human colostrum. These results will help in understanding infections and immunizations effects on maternal IgA at the mammary gland, and their impact on the development and protection of the newborn. Electronic supplementary material The online version of this article (10.1186/s40748-019-0104-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Erick Sánchez-Salguero
- 1Department of Molecular Biomedicine, Center for Research and Advanced Studies (CINVESTAV), National Polytechnic Institute (IPN), Mexico City, Mexico
| | - Geovanni Kaleb Mondragón-Ramírez
- 1Department of Molecular Biomedicine, Center for Research and Advanced Studies (CINVESTAV), National Polytechnic Institute (IPN), Mexico City, Mexico.,2Interdisciplinary Center for Health Sciences, Milpa Alta Unit (CICSUMA), National Polytechnic Institute (IPN), Mexico City, Mexico
| | - Julio C Alcántara-Montiel
- School of Higher Studies Zaragoza, National Autonomous University of Mexico (UNAM), Regional Hospital of High Specialty of Ixtapaluca (HRAEI), Mexico City, Mexico
| | - Arturo Cérbulo-Vázquez
- 4Faculty of Medicine, Plan of Combined Studies in Medicine (PECEM), National Autonomous University of Mexico (UNAM), Mexico City, Mexico.,5Women's Hospital, Ministry of Health (SSA), Mexico City, Mexico
| | | | - Víctor Manuel Contreras-Vargas
- 6Departments of Gynecology and Genomic Medicine, Regional Hospital 1° de Octubre, Institute of Security and Social Services of State Workers (ISSSTE), Mexico City, Mexico
| | - María Del Rocío Thompson-Bonilla
- 6Departments of Gynecology and Genomic Medicine, Regional Hospital 1° de Octubre, Institute of Security and Social Services of State Workers (ISSSTE), Mexico City, Mexico
| | - Héctor Romero-Ramírez
- 1Department of Molecular Biomedicine, Center for Research and Advanced Studies (CINVESTAV), National Polytechnic Institute (IPN), Mexico City, Mexico
| | - Leopoldo Santos-Argumedo
- 1Department of Molecular Biomedicine, Center for Research and Advanced Studies (CINVESTAV), National Polytechnic Institute (IPN), Mexico City, Mexico
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7
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Rodríguez-Alba JC, Girón-Pérez DA, Romero-Ramírez H, Pelayo R, Santos-Argumedo L. Regulatory IFN-γ-producing killer dendritic cells are enhanced in B6.MLR-Fas lpr /J lupus-prone mice. Eur J Immunol 2018; 48:1851-1860. [PMID: 30289564 DOI: 10.1002/eji.201847547] [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: 02/08/2018] [Revised: 08/22/2018] [Accepted: 10/04/2018] [Indexed: 11/09/2022]
Abstract
A novel cell population denominated IFN-γ-producing killer dendritic cells (IKDCs) have been recently described. These cells are lymphocytes lacking B- or T- receptors, but they can be identified by the presence of B220+ CD38+ CD49b+ and low CD11c, among other cell surface markers. The main characteristics of IKDCs are the production of IFN-γ and the ability to spontaneously kill tumor cells. We found that this population increases in B6.MLR-Faslpr /J mice. Interestingly, IKDCs increase with age and are more abundant in mice older than 6 months onward. To analyze whether these cells have any role in the induction of the lupus-like phenotype in the B6.MLR-Faslpr /J mice, IKDCs were purified and transferred into 6-month-old B6.MRL-Faslpr /J mice, then the presence of anti-nuclear antibodies (ANAS) and anti-dsDNA antibodies were analyzed 2 and 4 months after the transfer. The results showed a reduction in the levels of these autoantibodies and increased survival of these mice, indicating that these cells may have a regulatory function. In vitro assays demonstrated that IKDCs reduced the proliferation of both autoreactive B and T cells, suggesting that these may be the mechanisms used by these cells to ameliorate the lupus-like phenotype in the B6.MRL-Faslpr /J mice.
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Affiliation(s)
- Juan Carlos Rodríguez-Alba
- Unidad de Citometría de Flujo, Instituto de Ciencias de la Salud, Universidad Veracruzana, Xalapa, Veracruz, México
| | | | | | - Rosana Pelayo
- Centro de Investigación Biomédica de Oriente-CIBIOR, IMSS, Puebla, Mexico
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8
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Domínguez-Pantoja M, López-Herrera G, Romero-Ramírez H, Santos-Argumedo L, Chávez-Rueda AK, Hernández-Cueto Á, Flores-Muñoz M, Rodríguez-Alba JC. CD38 protein deficiency induces autoimmune characteristics and its activation enhances IL-10 production by regulatory B cells. Scand J Immunol 2018; 87:e12664. [DOI: 10.1111/sji.12664] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 03/19/2018] [Indexed: 01/09/2023]
Affiliation(s)
- M. Domínguez-Pantoja
- Programa de Doctorado en Ciencias de la Salud; Instituto de Ciencias de la Salud; Universidad Veracruzana; Xalapa Veracruz México
- Unidad de Citometría de Flujo; Instituto de Ciencias de la Salud; Universidad Veracruzana; Xalapa Veracruz México
| | - G. López-Herrera
- Unidad de Investigación en Inmunodeficiencias; Instituto Nacional de Pediatría; Ciudad de México México
| | - H. Romero-Ramírez
- Departamento de Biomedicina Molecular; CINVESTAV-IPN; Ciudad de México México
| | - L. Santos-Argumedo
- Departamento de Biomedicina Molecular; CINVESTAV-IPN; Ciudad de México México
| | - A. K. Chávez-Rueda
- IM en Inmunología; Hospital de Pediatría; CMN Siglo XXI, IMSS; Ciudad de México México
| | - Á. Hernández-Cueto
- Laboratorio Central de Epidemiología; CMN La Raza; IMSS; Ciudad de México México
| | - M. Flores-Muñoz
- Programa de Doctorado en Ciencias de la Salud; Instituto de Ciencias de la Salud; Universidad Veracruzana; Xalapa Veracruz México
- Unidad Quirúrgica Animal, Instituto de Ciencias de la Salud; Universidad Veracruzana; Xalapa Veracruz México
| | - J. C. Rodríguez-Alba
- Programa de Doctorado en Ciencias de la Salud; Instituto de Ciencias de la Salud; Universidad Veracruzana; Xalapa Veracruz México
- Unidad de Citometría de Flujo; Instituto de Ciencias de la Salud; Universidad Veracruzana; Xalapa Veracruz México
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9
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Romero-Ramírez H, Morales-Guadarrama MT, Pelayo R, López-Santiago R, Santos-Argumedo L. CD38 expression in early B-cell precursors contributes to extracellular signal-regulated kinase-mediated apoptosis. Immunology 2015; 144:271-81. [PMID: 25155483 DOI: 10.1111/imm.12370] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 07/30/2014] [Accepted: 08/18/2014] [Indexed: 01/06/2023] Open
Abstract
CD38 is a 45,000 molecular weight transmembrane protein that is expressed in immature and mature lymphocytes. However, the expression and function of CD38 during B-cell differentiation in mice is poorly understood. Here, we report that CD38 is expressed from the earliest stages of B-cell development. Pre-pro-B, pro-B, pre-B and immature B cells from murine bone marrow all stained positive for CD38. Interestingly, CD38 expression increases with B-cell maturation. To assess the role of CD38 during B-cell maturation, CD38-deficient mice were analysed. CD38(-/-) mice showed a significant increase in both the frequency of B-lineage cells and the absolute numbers of pre-pro-B cells in bone marrow; however, no other differences were observed at later stages. CD38 cross-linking in Ba/F3 cells promoted apoptosis and marked extracellular signal-regulated kinase (ERK) phosphorylation, and these effects were reduced by treatment with the mitogen-activated protein kinase/ERK kinase inhibitor PD98059, and similar effects were observed in B-cell precursors from bone marrow. These data demonstrate that B-cell precursors in mouse bone marrow express functional CD38 and implicate the early ligation of CD38 in the ERK-associated regulation of the B-lineage differentiation pathway.
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Affiliation(s)
- Héctor Romero-Ramírez
- Department of Molecular Biomedicine, Centre for Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico; Department of Immunology, National School of Biological Sciences, IPN, Mexico City, Mexico
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10
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García-Cordero J, Carrillo-Halfon S, León-Juárez M, Romero-Ramírez H, Valenzuela-León P, López-González M, Santos-Argumedo L, Gutiérrez-Castañeda B, González-Y-Merchand JA, Cedillo-Barrón L. Generation and characterization of a rat monoclonal antibody against the RNA polymerase protein from Dengue Virus-2. Immunol Invest 2013; 43:28-40. [DOI: 10.3109/08820139.2013.833622] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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León-Juárez M, García-Cordero J, Santos-Argumedo L, Romero-Ramírez H, García-Machorro J, Bustos-Arriaga J, Gutiérrez-Castañeda B, Sepúlveda NV, Mellado-Sánchez G, Cedillo-Barrón L. Generation and characterization of a monoclonal antibody that cross-reacts with the envelope protein from the four dengue virus serotypes. APMIS 2013; 121:848-58. [DOI: 10.1111/apm.12044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Accepted: 11/27/2012] [Indexed: 01/14/2023]
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Zárate-Aquino C, Torres-Marcial J, Ortiz-Herrera M, Romero-Ramírez H, Santos-Argumedo L, López-Corella E, Coria-Jiménez R. Identification of Helicobacter pylori strain cagPAI+ and cagPAI- Antigens by IgG antibodies from sera of experimentally colonized meriones unguiculatus (Mongolian gerbils). Helicobacter 2011; 16:200-9. [PMID: 21585605 DOI: 10.1111/j.1523-5378.2011.00831.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Mongolian gerbils that are experimentally infected with Helicobacter pylori develop a chronic inflammation that is similar to natural infections in humans. The aim of this study was to compare the antigens of H. pylori cagPAI+ and cagPAI- strains that are expressed during Meriones unguiculatus colonization. MATERIALS AND METHODS We identified H. pylori cagPAI+ and cagPAI- strain antigens via Western blotting of samples from Mongolian gerbils that were subjected to unique, mixed, and sequential bacterial infections. RESULTS The antigens from the J99/CG3 (cagPAI+) strain had a lower molecular weight than the antigens from the 251F/CG3 (cagPAI-) strain. There were fewer identified antigens in the single unique infections compared with the mixed and sequential infections. The number of recognized antigens that had a frequency of recognition >60% was higher for the simultaneous and sequential infection groups compared with the single infection group. A 57-kDa antigen was present in >60% of the samples and four of the five experimental groups. Antigens specific to each bacterial strain were identified; the 190- and 158-kDa antigens appear to be specific for cagPAI-, and the 70-kDa antigen appears to be specific for cagPAI+. CONCLUSIONS In this study, we identified antigens that are common and specific to the H. pylori cagPAI+ and cagPAI- strains.
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Affiliation(s)
- Carmen Zárate-Aquino
- Laboratory of Experimental Bacteriology, National Institute of Pediatrics, Mexico City, Mexico
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Ruvalcaba-Salazar OK, Romero-Ramírez H, Santos-Argumedo L, Vargas M, Hernández-Rivas R. Preparation and characterization of a monoclonal antibody specific to Plasmodium falciparum TATA binding protein. Hybridoma (Larchmt) 2007; 25:367-71. [PMID: 17203999 DOI: 10.1089/hyb.2006.25.367] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PfTBP is a transcriptional factor required by all three types of RNA polymerases in eukaryotic cells. In order to obtain a specific monoclonal antibody (MAb) against PfTBP, a DNA fragment of 684 base pairs (bp) that contained the complete PfTBP gene was amplified by polymerase chain reaction (PCR) and inserted into the pGEX prokaryotic expression vector. The recombinant protein (GST-PfTBP) was expressed in Escherichia coli, purified, and used as antigen to immunize mice. MAbs against PfTBP were obtained and hybridomas were screened by enzyme-linked immunosorbent assay (ELISA). Western blotting and immunofluorescence assays showed that MAb Pf.r1 recognized the PfTBP protein in nuclear extracts from Plasmodium falciparum as well as a native protein in the nuclei of this parasite. This MAb will be a helpful tool for the identification of the TBP associated factors (TAFs), which are apparently highly divergent with other eukaryotes. This information could help to identify new candidate gene products to develop novel drugs or vaccines.
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Montiel-Condado D, Romero-Ramírez H, Ramírez-Estudillo C, Santos-Argumedo L, Hernández-Rivas R. Preparation and characterization of a monoclonal antibody specific to histone acetyltransferase from Plasmodium falciparum. Hybridoma (Larchmt) 2005; 24:106-11. [PMID: 15857175 DOI: 10.1089/hyb.2005.24.106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/13/2022]
Abstract
We have obtained a specific monoclonal antibody (MAb) against the Plasmodium falciparum histone acetyl transferase (PfGcn5), a transcriptional factor that possesses HAT activity directed to the amino terminal of histone H3. To prepare this antibody, a 968-base pair (bp) DNA fragment of PfGcn5 gene corresponding to C-terminal domain was obtained by RT-PCR and cloned into prokaryotic expression vector pGEX-4T3. MAb against PfGcn5 was obtained with hybridoma technique and ELISA screening using either purified GSTPfGcn5 protein or purified GST protein alone as a control. One MAb, named Pf.r2, was able to identify the PfGcn5 protein in nuclear extract from P. falciparum and immunofluorescence assays. This MAb will be a helpful tool to perform a variety of assays to identify the other components of PfGcn5 complexes.
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Affiliation(s)
- Dvorak Montiel-Condado
- Department of Molecular Biomedicine, Centro de Investigación y de Estudios Avanzados del IPN, D.F., México
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Abstract
CD40, a glycoprotein expressed on B lymphocytes plays an important role in B cell development, growth and differentiation. The ligand for the CD40 is a 39-kDa glycoprotein (CD154) expressed on the surface of activated T lymphocytes and is essential for thymus-dependent humoral immunity. The expression of CD154 is tightly regulated and its transient expression reduces the chances of potentially deleterious bystander activation of B cells. Stimulation through CD40 has been studied in vitro by using antibodies against CD40, by membranes of activated T cells or lately, by CD154 transfected cells. In this work we have evaluated the outcome of CD40-CD40 ligand interaction in vitro and in vivo by using CD154-transfected L929 cells. In vitro assays showed that CD154-L929 cells can induce on B cells: IL-4-dependent proliferation, up-regulation of CD23, CD54 and class II molecules and can also rescue WEHI-231 B cell lymphoma from anti-IgM-induced apoptosis. Interestingly, in vivo assays revealed that when CD154-L929 cells were inoculated into the spleen, mice developed a strong but transient production of anti-erythrocyte autoantibodies. Through B lymphocyte activation with CD154-transfected L929 cells both in vitro and in vivo, our data reveal that enforced and prolonged expression of CD40 ligand overcomes the tightly regulated mechanisms of B cell activation, triggering the production of autoantibodies. This system might be used to evaluate the early steps of an autoimmune response and the role of CD40-CD154 in the induction of primary responses in vivo.
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Affiliation(s)
- L Santos-Argumedo
- Department of Molecular Biomedicine, Centro de Investigación y Estudios Avanzados, México, Mexico.
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