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Campos-Ruíz MA, Illades-Aguiar B, Del Moral-Hernández O, Romo-Castillo M, Salazar-García M, Espinoza-Rojo M, Vences-Velázquez A, Cortés-Sarabia K, Luna-Pineda VM. Immunized mice naturally process in silico-derived peptides from the nucleocapsid of SARS-CoV-2. BMC Microbiol 2023; 23:319. [PMID: 37898784 PMCID: PMC10612231 DOI: 10.1186/s12866-023-03076-5] [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: 05/14/2023] [Accepted: 10/18/2023] [Indexed: 10/30/2023] Open
Abstract
BACKGROUND The nucleocapsid (N) protein of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is an excellent immunogen that promotes the production of high-titer antibodies. N protein-derived peptides identified using a bioinformatics approach can potentially be used to develop a new generation of vaccines or diagnostic methods for detecting SARS-CoV-2 and its variants. However, further studies must demonstrate their capacity to be naturally processed by the immune system. OBJECTIVE We aimed to examine the in vivo processing and recognition of in silico-identified peptides using the serum of immunized animals with the complete protein. METHODS Recombinant N (Nrec) protein was subcutaneously administered to six Balb/c mice. Enzyme-linked immunosorbent assay (ELISA), western blotting, dot blotting, and immunoprecipitation were performed to evaluate the recognition of the complete protein and in silico-derived peptides. RESULTS The serum of immunized mice recognized ~ 62.5 ng/µL of Nrec with high specificity to linear and conformational epitopes. Dot blot analysis showed that peptides Npep2 and Npep3 were the most reactive. CONCLUSION Our data confirm the high immunogenicity of the SARS-CoV-2 N protein and provide evidence on the antigenicity of two peptides located in the N-arm/RNA-binding domain (Npep2) and oligomerization domain/C-tail (Npep3), considered the biologically active site of the N protein.
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Affiliation(s)
- Mario Aldair Campos-Ruíz
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo, Guerrero, México
| | - Berenice Illades-Aguiar
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo, Guerrero, México
| | - Oscar Del Moral-Hernández
- Laboratorio de Virología, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo, Guerrero, México
| | - Mariana Romo-Castillo
- Laboratorio de Investigación en COVID-19, Laboratorio de Investigación en Inmunología y Proteómica, Hospital Infantil de México Federico Gómez, Ciudad de México, México
- Programa Investigadoras e Investigadores por México, Consejo Nacional de Humanidades, Ciencias y Tecnologías, Ciudad de México, México
| | - Marcela Salazar-García
- Laboratorio de Biología del Desarrollo y Teratogénesis Experimental, Hospital Infantil de México Federico Gómez, Ciudad de México, México
| | - Mónica Espinoza-Rojo
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo, Guerrero, México
| | - Amalia Vences-Velázquez
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo, Guerrero, México
| | - Karen Cortés-Sarabia
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo, Guerrero, México.
| | - Victor M Luna-Pineda
- Laboratorio de Investigación en COVID-19, Laboratorio de Investigación en Inmunología y Proteómica, Hospital Infantil de México Federico Gómez, Ciudad de México, México.
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2
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Rodríguez-Nava C, Ortuño-Pineda C, Illades-Aguiar B, Flores-Alfaro E, Leyva-Vázquez MA, Parra-Rojas I, Del Moral-Hernández O, Vences-Velázquez A, Cortés-Sarabia K, Alarcón-Romero LDC. Mechanisms of Action and Limitations of Monoclonal Antibodies and Single Chain Fragment Variable (scFv) in the Treatment of Cancer. Biomedicines 2023; 11:1610. [PMID: 37371712 DOI: 10.3390/biomedicines11061610] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 04/20/2023] [Revised: 05/24/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
Monoclonal antibodies are among the most effective tools for detecting tumor-associated antigens. The U.S. Food and Drug Administration (FDA) has approved more than 36 therapeutic antibodies for developing novel alternative therapies that have significant success rates in fighting cancer. However, some functional limitations have been described, such as their access to solid tumors and low interaction with the immune system. Single-chain variable fragments (scFv) are versatile and easy to produce, and being an attractive tool for use in immunotherapy models. The small size of scFv can be advantageous for treatment due to its short half-life and other characteristics related to the structural and functional aspects of the antibodies. Therefore, the main objective of this review was to describe the current situation regarding the mechanisms of action, applications, and limitations of monoclonal antibodies and scFv in the treatment of cancer.
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Affiliation(s)
- Cynthia Rodríguez-Nava
- Laboratorio de Investigación en Citopatología e Histoquímica, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
- Laboratorio de Investigación en Inmunobiología y Diagnóstico Molecular, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
| | - Carlos Ortuño-Pineda
- Laboratorio de Proteínas y Ácidos Nucleicos, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
| | - Berenice Illades-Aguiar
- Laboratorio de Investigación en Biomedicina Molecular, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
| | - Eugenia Flores-Alfaro
- Laboratorio de Investigación en Epidemiología Clínica y Molecular, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
| | - Marco Antonio Leyva-Vázquez
- Laboratorio de Investigación en Biomedicina Molecular, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
| | - Isela Parra-Rojas
- Laboratorio de Investigación en Obesidad y Diabetes, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
| | | | - Amalia Vences-Velázquez
- Laboratorio de Investigación en Inmunobiología y Diagnóstico Molecular, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
| | - Karen Cortés-Sarabia
- Laboratorio de Investigación en Inmunobiología y Diagnóstico Molecular, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
| | - Luz Del Carmen Alarcón-Romero
- Laboratorio de Investigación en Citopatología e Histoquímica, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39070, Mexico
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3
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Cortés-Sarabia K, Guzman-Silva V, Martinez-Pacheco KM, Meza-Hernández JA, Luna-Pineda VM, Leyva-Vázquez MA, Vences-Velázquez A, Beltrán-Anaya FO, Del Moral-Hernández O, Illades-Aguiar B. Detection of IgA and IgG Antibodies against the Structural Proteins of SARS-CoV-2 in Breast Milk and Serum Samples Derived from Breastfeeding Mothers. Viruses 2023; 15:v15040966. [PMID: 37112946 PMCID: PMC10144911 DOI: 10.3390/v15040966] [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: 02/28/2023] [Revised: 04/03/2023] [Accepted: 04/09/2023] [Indexed: 04/29/2023] Open
Abstract
Background: COVID-19 vaccination or natural infection is associated with the development of immunity. The search of IgA and IgG antibodies against all the structural proteins (spike, nucleocapsid, membrane, and envelope) of SARS-CoV-2 in breastfeeding mothers is associated with immunity that can help the newborn avoid development of the infection. Methods: In this study, we analyzed 30 breastfeeding women that provided samples of breast milk and serum and evaluated the presence of IgA, total IgG, and subclasses against the structural proteins of SARS-CoV-2. Results: We reported a high seroprevalence to IgA (76.67-100%) and negativity to IgG against all analyzed proteins in breast milk. Seroprevalence in serum samples was around 10-36.67% to IgA and 23.3-60% to IgG. Finally, we detected the presence of the subclasses IgG1, IgG2, and IgG4 against all the structural proteins of SARS-CoV-2. Conclusions: This work provides evidence of the presence of IgA and IgG antibodies against the four structural proteins of SARS-CoV-2 in breast milk and serum samples derived from breastfeeding women, which can confer immunity to the newborn.
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Affiliation(s)
- Karen Cortés-Sarabia
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico
| | - Vianey Guzman-Silva
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico
| | - Karla Montserrat Martinez-Pacheco
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico
| | - Jesús Alberto Meza-Hernández
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico
| | - Víctor Manuel Luna-Pineda
- Unidad de Investigación en Inmunología y Proteómica, Laboratorio de Investigación en COVID-19, Hospital Infantil de México "Federico Gómez", Mexico City 06720, Mexico
| | - Marco Antonio Leyva-Vázquez
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico
| | - Amalia Vences-Velázquez
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico
| | - Fredy Omar Beltrán-Anaya
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico
| | - Oscar Del Moral-Hernández
- Laboratorio de Virología, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico
| | - Berenice Illades-Aguiar
- Unidad de Investigación en Inmunología y Proteómica, Laboratorio de Investigación en COVID-19, Hospital Infantil de México "Federico Gómez", Mexico City 06720, Mexico
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4
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Cortés-Sarabia K, Palomares-Monterrubio KH, Velázquez-Moreno JO, Luna-Pineda VM, Leyva-Vázquez MA, Vences-Velázquez A, Dircio-Maldonado R, Del Moral-Hernández O, Illades-Aguiar B. Seroprevalence of IgG and Subclasses against the Nucleocapsid of SARS-CoV-2 in Health Workers. Viruses 2023; 15:v15040955. [PMID: 37112935 PMCID: PMC10141201 DOI: 10.3390/v15040955] [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: 02/28/2023] [Revised: 03/28/2023] [Accepted: 04/03/2023] [Indexed: 04/29/2023] Open
Abstract
BACKGROUND The nucleocapsid protein of SARS-CoV-2 participates in viral replication, transcription, and assembly. Antibodies against this protein have been proposed for the epidemiological analysis of the seroprevalence of COVID-19 associated with natural infection by SARS-CoV-2. Health workers were one of the most exposed populations, and some had an asymptomatic form of the disease, so detecting IgG antibodies and subclasses against the N protein can help to reclassify their epidemiological status and obtain information about the effector mechanisms associated with viral elimination. METHODS In this study, we analyzed 253 serum samples collected in 2021 and derived from health workers, and evaluated the presence of total IgG and subclasses against the N protein of SARS-CoV-2 by indirect ELISA. RESULTS From the analyzed samples, 42.69% were positive to anti-N IgG antibodies. A correlation between COVID-19 asymptomatic infection and IgG antibodies was observed (p = 0.006). The detected subclasses were: IgG1 (82.4%), IgG2 (75.9%), IgG3 (42.6%), and IgG4 (72.6%). CONCLUSIONS This work provides evidence about the high seroprevalence of total IgG and subclasses of anti-N and their relations with the asymptomatic infection of SARS-CoV-2 and related symptoms.
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Affiliation(s)
- Karen Cortés-Sarabia
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico
| | - Kenet Hisraim Palomares-Monterrubio
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico
| | - Jesús Omar Velázquez-Moreno
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico
| | - Víctor Manuel Luna-Pineda
- Unidad de Investigación en Inmunología y Proteómica, Laboratorio de Investigación en COVID-19, Hospital Infantil de México "Federico Gómez", Mexico City 06720, Mexico
| | - Marco Antonio Leyva-Vázquez
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico
| | - Amalia Vences-Velázquez
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico
| | - Roberto Dircio-Maldonado
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico
| | - Oscar Del Moral-Hernández
- Laboratorio de Virología, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico
| | - Berenice Illades-Aguiar
- Unidad de Investigación en Inmunología y Proteómica, Laboratorio de Investigación en COVID-19, Hospital Infantil de México "Federico Gómez", Mexico City 06720, Mexico
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5
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Loaeza-Loaeza J, Cerecedo-Castillo AJ, Rodríguez-Ruiz HA, Castro-Coronel Y, Del Moral-Hernández O, Recillas-Targa F, Hernández-Sotelo D. DNMT3B overexpression downregulates genes with CpG islands, common motifs, and transcription factor binding sites that interact with DNMT3B. Sci Rep 2022; 12:20839. [PMID: 36460706 PMCID: PMC9718745 DOI: 10.1038/s41598-022-24186-6] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 11/11/2022] [Indexed: 12/04/2022] Open
Abstract
DNA methylation is a key epigenetic modification to regulate gene expression in mammalian cells. Abnormal DNA methylation in gene promoters is common across human cancer types. DNMT3B is the main de novo methyltransferase enhanced in several primary tumors. How de novo methylation is established in genes related to cancer is poorly understood. CpG islands (CGIs), common sequences, and transcription factors (TFs) that interact with DNMT3B have been associated with abnormal de novo methylation. We initially identified cis elements associated with DNA methylation to investigate the contribution of DNMT3B overexpression to the deregulation of its possible target genes in an epithelial cell model. In a set of downregulated genes (n = 146) from HaCaT cells with DNMT3B overexpression, we found CGI, common sequences, and TFs Binding Sites that interact with DNMT3B (we called them P-down-3B). PPL1, VAV3, IRF1, and BRAF are P-down-3B genes that are downregulated and increased their methylation in DNMT3B presence. Together these findings suggest that methylated promoters aberrantly have some cis elements that could conduce de novo methylation by DNMT3B.
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Affiliation(s)
- Jaqueline Loaeza-Loaeza
- grid.412856.c0000 0001 0699 2934Laboratorio de Epigenética del Cáncer, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas S/N Col. Haciendita, 39070 Chilpancingo, Guerrero Mexico
| | - Angel Josué Cerecedo-Castillo
- grid.9486.30000 0001 2159 0001Departamento de Genética Molecular, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, 04510 Ciudad de México, Mexico
| | - Hugo Alberto Rodríguez-Ruiz
- grid.412856.c0000 0001 0699 2934Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas S/N Col. Haciendita, 39070 Chilpancingo, Guerrero Mexico
| | - Yaneth Castro-Coronel
- grid.412856.c0000 0001 0699 2934Laboratorio de Citopatología e Inmunohistoquímica, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas S/N Col. Haciendita, 39070 Chilpancingo, Guerrero Mexico
| | - Oscar Del Moral-Hernández
- grid.412856.c0000 0001 0699 2934Laboratorio de Virus y Cáncer, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas S/N Col. Haciendita, 39070 Chilpancingo, Guerrero Mexico
| | - Félix Recillas-Targa
- grid.9486.30000 0001 2159 0001Departamento de Genética Molecular, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, 04510 Ciudad de México, Mexico
| | - Daniel Hernández-Sotelo
- grid.412856.c0000 0001 0699 2934Laboratorio de Epigenética del Cáncer, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas S/N Col. Haciendita, 39070 Chilpancingo, Guerrero Mexico
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6
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Cortés-Sarabia K, Cruz-Rangel A, Flores-Alanis A, Salazar-García M, Jiménez-García S, Rodríguez-Martínez G, Reyes-Grajeda JP, Rodríguez-Téllez RI, Patiño-López G, Parra-Ortega I, Del Moral-Hernández O, Illades-Aguiar B, Klünder-Klünder M, Márquez-González H, Chávez-López A, Luna-Pineda VM. Clinical features and severe acute respiratory syndrome-coronavirus-2 structural protein-based serology of Mexican children and adolescents with coronavirus disease 2019. PLoS One 2022; 17:e0273097. [PMID: 35969583 PMCID: PMC9377623 DOI: 10.1371/journal.pone.0273097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 01/11/2022] [Accepted: 08/02/2022] [Indexed: 12/24/2022] Open
Abstract
Severe acute respiratory syndrome (SARS)-coronavirus (CoV)-2 infection in children and adolescents primarily causes mild or asymptomatic coronavirus disease 2019 (COVID-19), and severe illness is mainly associated with comorbidities. However, the worldwide prevalence of COVID-19 in this population is only 1%–2%. In Mexico, the prevalence of COVID-19 in children has increased to 10%. As serology-based studies are scarce, we analyzed the clinical features and serological response (SARS-CoV-2 structural proteins) of children and adolescents who visited the Hospital Infantil de México Federico Gómez (October 2020–March 2021). The majority were 9-year-old children without comorbidities who were treated as outpatients and had mild-to-moderate illness. Children aged 6–10 years and adolescents aged 11–15 years had the maximum number of symptoms, including those with obesity. Nevertheless, children with comorbidities such as immunosuppression, leukemia, and obesity exhibited the lowest antibody response, whereas those aged 1–5 years with heart disease had the highest levels of antibodies. The SARS-CoV-2 spike receptor-binding domain-localized peptides and M and E proteins had the best antibody response. In conclusion, Mexican children and adolescents with COVID-19 represent a heterogeneous population, and comorbidities play an important role in the antibody response against SARS-CoV-2 infection.
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Affiliation(s)
- Karen Cortés-Sarabia
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Guerrero, México
| | - Armando Cruz-Rangel
- Laboratorio de Bioquímica de Enfermedades Crónicas, Instituto Nacional de Medicina Genómica, Mexico City (Ciudad de México), México
| | - Alejandro Flores-Alanis
- Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City (Ciudad de México), México
| | - Marcela Salazar-García
- Laboratorio de Biología del Desarrollo y Teratogénesis Experimental, Hospital Infantil de México Federico Gómez, Mexico City (Ciudad de México), México
- Laboratorio de Investigación en COVID-19, Hospital Infantil de México Federico Gómez, Mexico City (Ciudad de México), México
| | - Samuel Jiménez-García
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Guerrero, México
| | - Griselda Rodríguez-Martínez
- Laboratorio de Investigación en COVID-19, Hospital Infantil de México Federico Gómez, Mexico City (Ciudad de México), México
| | - Juan Pablo Reyes-Grajeda
- Laboratorio de Bioquímica de Enfermedades Crónicas, Instituto Nacional de Medicina Genómica, Mexico City (Ciudad de México), México
| | - Rosa Isela Rodríguez-Téllez
- Unidad de Investigación en Inmunología y Proteómica, Hospital Infantil de México Federico Gómez, Mexico City (Ciudad de México), México
| | - Genaro Patiño-López
- Unidad de Investigación en Inmunología y Proteómica, Hospital Infantil de México Federico Gómez, Mexico City (Ciudad de México), México
| | - Israel Parra-Ortega
- Laboratorio Central, Hospital Infantil de México Federico Gómez, Mexico City (Ciudad de México), México
| | - Oscar Del Moral-Hernández
- Laboratorio de Virología, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Guerrero, México
| | - Berenice Illades-Aguiar
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Guerrero, México
| | - Miguel Klünder-Klünder
- Subdirección de Gestión de la Investigación, Hospital Infantil de México Federico Gómez, Mexico City (Ciudad de México), México
| | - Horacio Márquez-González
- Investigación Clínica, Hospital Infantil de México Federico Gómez, Mexico City (Ciudad de México), México
| | - Adrián Chávez-López
- Departamento de la Unidad de Terapia Intensiva Pediátrica, Hospital Infantil de México Federico Gómez, Mexico City (Ciudad de México), México
| | - Victor M. Luna-Pineda
- Laboratorio de Investigación en COVID-19, Hospital Infantil de México Federico Gómez, Mexico City (Ciudad de México), México
- Unidad de Investigación en Inmunología y Proteómica, Hospital Infantil de México Federico Gómez, Mexico City (Ciudad de México), México
- * E-mail:
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7
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Cortés-Sarabia K, Gutiérrez-Torres M, Mendoza-Renteria EM, Leyva-Vázquez MA, Vences-Velázquez A, Hernández-Sotelo D, Beltrán-Anaya FO, Del Moral-Hernández O, Illades-Aguiar B. Variation in the Humoral Immune Response Induced by the Administration of the BNT162b2 Pfizer/BioNTech Vaccine: A Systematic Review. Vaccines (Basel) 2022; 10:vaccines10060909. [PMID: 35746517 PMCID: PMC9229764 DOI: 10.3390/vaccines10060909] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 03/31/2022] [Revised: 05/24/2022] [Accepted: 06/01/2022] [Indexed: 02/04/2023] Open
Abstract
The BNT162b2 Pfizer/BioNTech vaccine was the first emergency approved vaccine during the COVID-19 pandemic. The aim of this systematic review was to examine the variations in the humoral immune response induced by the administration of the BNT162b2 vaccine in patients with previous SARS-CoV-2 infection, the elderly, and those with comorbidities and immunosuppression states. Additionally, we analyzed the effect of generated neutralizing antibodies against the new variants of concern of SARS-CoV-2. Pubmed, Science Direct, Mendeley, and WorldWide Science were searched between 1 January 2020 and October 2021 using the keywords “BNT162b2”, “serology”, “comorbidity”, “immunosuppression”, and “variants of concern”dA total of 20 peer-reviewed publications were selected. The analysis showed that those individuals with previous infections have a considerably higher antibody response after the administration of BNT162b2 vaccine in contrast with seronegative individuals. With regard to variation in immune responses, elderly individuals, patients with cancer, or patients who had undergone a kidney transplant, dialysis, or who were pregnant had a lower antibody response in comparison to healthy individuals. Finally, antibodies developed against the S protein produced by the BNT162b2 vaccine, possessed lower neutralizing activity against the alpha, beta, gamma, and delta variants of SARS-CoV-2. In conclusion, patients with immunodeficiencies and comorbidities have a lesser antibody response, about which further studies need to be performed in order to analyze the effectiveness and duration of the humoral immunity associated with vaccination in these specific populations.
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Affiliation(s)
- Karen Cortés-Sarabia
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico; (K.C.-S.); (M.G.-T.); (E.M.M.-R.); (A.V.-V.)
| | - Mayralina Gutiérrez-Torres
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico; (K.C.-S.); (M.G.-T.); (E.M.M.-R.); (A.V.-V.)
| | - Escarlet Maleny Mendoza-Renteria
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico; (K.C.-S.); (M.G.-T.); (E.M.M.-R.); (A.V.-V.)
| | - Marco Antonio Leyva-Vázquez
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico;
| | - Amalia Vences-Velázquez
- Laboratorio de Inmunobiología y Diagnóstico Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico; (K.C.-S.); (M.G.-T.); (E.M.M.-R.); (A.V.-V.)
| | - Daniel Hernández-Sotelo
- Laboratorio de Epigénetica del Cáncer, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico;
| | - Fredy Omar Beltrán-Anaya
- Laboratorio de Virología, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico;
| | - Oscar Del Moral-Hernández
- Laboratorio de Virología, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico;
- Correspondence: (O.D.M.-H.); (B.I.-A.)
| | - Berenice Illades-Aguiar
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo de los Bravo 39086, Mexico;
- Correspondence: (O.D.M.-H.); (B.I.-A.)
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8
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Loaeza-Loaeza J, Illades-Aguiar B, Del Moral-Hernández O, Castro-Coronel Y, Leyva-Vázquez MA, Dircio-Maldonado R, Ortiz-Ortiz J, Hernández-Sotelo D. The CpG island methylator phenotype increases the risk of high-grade squamous intraepithelial lesions and cervical cancer. Clin Epigenetics 2022; 14:4. [PMID: 34991696 PMCID: PMC8740093 DOI: 10.1186/s13148-021-01224-0] [Citation(s) in RCA: 1] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 12/23/2021] [Indexed: 02/06/2023] Open
Abstract
Background High-risk human papillomavirus (HR-HPV) infection is the main cause of cervical cancer, but additional alterations are necessary for its development. Abnormal DNA methylation has an important role in the origin and dissemination of cervical cancer and other human tumors. In this work, we analyzed the methylation of eight genes (AJAP1, CDH1, CDH13, MAGI2, MGMT, MYOD1, RASSF1A and SOX17) that participate in several biological processes for the maintenance of cell normality. We analyzed DNA methylation by methylation-specific PCR (MSP) and HPV infection using the INNO‑LiPA genotyping kit in 59 samples diagnostic of normal cervical tissue (non-SIL), 107 low-grade squamous intraepithelial lesions (LSILs), 29 high-grade squamous intraepithelial lesions (HSILs) and 51 cervical cancers (CCs). Results We found that all samples of LSIL, HSIL, and CC were HPV-positive, and the genotypes with higher frequencies were 16, 18, 51 and 56. In general, the genes analyzed displayed a significant tendency toward an increase in methylation levels according to increasing cervical lesion severity, except for the CDH13 gene. High CpG island methylator phenotype (CIMP) was associated with a 50.6-fold (95% CI 4.72–2267.3)-increased risk of HSIL and a 122-fold risk of CC (95% CI 10.04–5349.7). Conclusions We found that CIMP high was significantly associated with HSIL and CC risk. These results could indicate that CIMP together with HR-HPV infection and other factors participates in the development of HSIL and CC. Supplementary Information The online version contains supplementary material available at 10.1186/s13148-021-01224-0.
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Affiliation(s)
- Jaqueline Loaeza-Loaeza
- Laboratory of Cancer Epigenetics, School of Chemical and Biological Sciences, Autonomous University of Guerrero, Av. Lázaro Cárdenas S/N Col. Haciendita, 39070, Chilpancingo, Guerrero, Mexico
| | - Berenice Illades-Aguiar
- Laboratory of Molecular Biomedicine, School of Chemical and Biological Sciences, Autonomous University of Guerrero, Av. Lázaro Cárdenas S/N Col. Haciendita, 39070, Chilpancingo, Guerrero, Mexico
| | - Oscar Del Moral-Hernández
- Laboratory of Cancer Virology, School of Chemical and Biological Sciences, Autonomous University of Guerrero, Av. Lázaro Cárdenas S/N Col. Haciendita, 39070, Chilpancingo, Guerrero, Mexico
| | - Yaneth Castro-Coronel
- Laboratory of Cytopathology and Histochemistry, School of Chemical and Biological Sciences, Autonomous University of Guerrero, Av. Lázaro Cárdenas S/N Col. Haciendita, 39070, Chilpancingo, Guerrero, Mexico
| | - Marco A Leyva-Vázquez
- Laboratory of Molecular Biomedicine, School of Chemical and Biological Sciences, Autonomous University of Guerrero, Av. Lázaro Cárdenas S/N Col. Haciendita, 39070, Chilpancingo, Guerrero, Mexico
| | - Roberto Dircio-Maldonado
- Laboratory of Molecular Biomedicine, School of Chemical and Biological Sciences, Autonomous University of Guerrero, Av. Lázaro Cárdenas S/N Col. Haciendita, 39070, Chilpancingo, Guerrero, Mexico
| | - Julio Ortiz-Ortiz
- Laboratory of Molecular Biomedicine, School of Chemical and Biological Sciences, Autonomous University of Guerrero, Av. Lázaro Cárdenas S/N Col. Haciendita, 39070, Chilpancingo, Guerrero, Mexico
| | - Daniel Hernández-Sotelo
- Laboratory of Cancer Epigenetics, School of Chemical and Biological Sciences, Autonomous University of Guerrero, Av. Lázaro Cárdenas S/N Col. Haciendita, 39070, Chilpancingo, Guerrero, Mexico.
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9
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Alarcón-Romero LDC, Organista-Nava J, Gómez-Gómez Y, Ortiz-Ortiz J, Hernández-Sotelo D, Del Moral-Hernández O, Mendoza-Catalán MA, Antaño-Arias R, Leyva-Vázquez MA, Sales-Linares N, Antonio-Véjar V, Illades-Aguiar B. Prevalence and Distribution of Human Papillomavirus Genotypes (1997-2019) and Their Association With Cervical Cancer and Precursor Lesions in Women From Southern Mexico. Cancer Control 2022; 29:10732748221103331. [PMID: 35608056 PMCID: PMC9136461 DOI: 10.1177/10732748221103331] [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] [Indexed: 11/23/2022] Open
Abstract
Background Cervical cancer (CC) is the fourth most common malignancy of the female genital tract. Human Papillomavirus (HPV) is the main cause of precancerous lesions and CC cases worldwide Objective We assessed the prevalence and distribution of HPV types and their association with precancerous lesions and CC. Methods HPV genotypes were detected by 3 methods depending on the year of in which the sample was analyzed: MY09/11 RFLPs (1997 to 2010), GP5+/6+ primer systems (2005 to 2010) and INNO-LiPA HPV Genotyping Extra (2010 to 2019) in cervical samples (No-IL: 4445; LSIL: 2464; HSILs: 151 and CC: 253) from women from southern Mexico. Results The overall HPV prevalence was 54.17%, and hpv-16 was the most common genotype. In single infection, the high-risk HPV genotypes (group 1) were associated with squamous intraepitelial lesions (LSIL: HPV–39 (OR = 10.58, 95% CI 4.09–27.36, P < .001); HSIL: HPV-31 (OR = 14.76, 95% CI 6.56–33.20, P < .001); and CC: HPV-16 (OR = 25.01, 95% CI 18.83–33.21, P < .001). In multiple infections, the HPV genotypes (HPV-16 and HPV-18) were also associated with a high risk of lesions [LSIL: HPV-18 (OR = 3.45; 95% CI 1.36–8.91; P = .009); HSIL: HPV-18 (OR = 5.12; 95% CI 1.21–21.68; P = .026); and CC: HPV-16 (OR = 3.03; 95% CI 1.72–5.32; P < .001)] compared to single infection. In the analysis adjusted for age, giving birth, and cigarette smoking, a significant increase in the risk of LSIL, HSIL, and CC was maintained. Conclusions This study provides current data on the prevalence and distribution of HPV genotypes in women from southern Mexico, which could serve as a valuable reference to guide nationwide CC screening programs and provide scientific evidence that could be useful for vaccine development efforts. Likewise, it was identified that infection with carcinogenic HPV genotypes is an independent risk factor for LSIL, HSIL, and CC.
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Affiliation(s)
- Luz Del Carmen Alarcón-Romero
- Laboratorio de Citopatología, Facultad de Ciencias Químico Biológicas, 27768Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - Jorge Organista-Nava
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, 27768Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - Yazmín Gómez-Gómez
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, 27768Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - Julio Ortiz-Ortiz
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, 27768Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - Daniel Hernández-Sotelo
- Laboratorio de Epigenética, Facultad de Ciencias Químico Biológicas, 27768Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - Oscar Del Moral-Hernández
- Laboratorio de Virología, Facultad de Ciencias Químico Biológicas, 27768Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - Miguel Angel Mendoza-Catalán
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, 27768Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - Ramón Antaño-Arias
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, 27768Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - Marco Antonio Leyva-Vázquez
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, 27768Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - Natividad Sales-Linares
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, 27768Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - Verónica Antonio-Véjar
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, 27768Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - Berenice Illades-Aguiar
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, 27768Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
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10
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Garibay-Cerdenares OL, Sánchez-Meza LV, Encarnación-Guevara S, Hernández-Ortíz M, Martínez-Batallar G, Torres-Rojas FI, Mendoza-Catalán MÁ, Moral-Hernández OD, Leyva-Vázquez MA, Illades-Aguiar B. Effect of HPV 16 E6 Oncoprotein Variants on the Alterations of the Proteome of C33A Cells. Cancer Genomics Proteomics 2021; 18:273-283. [PMID: 33893080 DOI: 10.21873/cgp.20258] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 02/19/2021] [Accepted: 02/23/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND/AIM The E6 genotypic variants of HPV 16 identified in lesions of women with cervical cancer (CC) in Southern of Mexico include the E-G350, AAa, AAc, E-C188/G350, and E-A176/G350, transcriptomic analysis cells transfected with those variants showed to induce differential expression of the host genes involved in the development of CC, the aim of this work was to understand how the over-expression of the E6 oncoprotein and its variants can induce molecular mechanisms that lead to more aggressive HPV 16 phenotypes in cervical cancer and which proteins could be associated with the process. MATERIALS AND METHODS Total extracts from C33A, C33A mock, C33A AAa, C33A E-C188/G350, C33A E-A176/G350, and C33A E-prototype cells were analyzed using 2D electrophoresis, PDQuest software and mass spectrometry, validation of results was performed through qPCR. RESULTS Statistically significant differential expression of 122 spots was detected, 12 of the identified proteins were associated with metabolism and metabolic programming. Out of these CCT8, ENO and ALDH1A were further validated. CONCLUSION CCT8 and ALDH1A were found to be over-expressed in C33A AAa and C33A E-A176/G350, compared to the E prototype. Both proteins could be associated with a most aggressive phenotype due to their relationship with metabolism, protein folding and stemness, mechanisms associated to E6 that could be useful in the design of new therapies.
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Affiliation(s)
- Olga Lilia Garibay-Cerdenares
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, México.,CONACyT- Universidad Autónoma de Guerrero, Chilpancingo, México
| | - Luz Victoria Sánchez-Meza
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, México
| | | | | | | | - Francisco Israel Torres-Rojas
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, México
| | - Miguel Ángel Mendoza-Catalán
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, México
| | - Oscar Del Moral-Hernández
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, México
| | - Marco Antonio Leyva-Vázquez
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, México
| | - Berenice Illades-Aguiar
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, México;
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11
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Cabrera-Licona A, Pérez-Añorve IX, Flores-Fortis M, Moral-Hernández OD, González-de la Rosa CH, Suárez-Sánchez R, Chávez-Saldaña M, Aréchaga-Ocampo E. Deciphering the epigenetic network in cancer radioresistance. Radiother Oncol 2021; 159:48-59. [PMID: 33741468 DOI: 10.1016/j.radonc.2021.03.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 08/28/2020] [Revised: 02/15/2021] [Accepted: 03/09/2021] [Indexed: 12/16/2022]
Abstract
Radiotherapy, in addition to surgery and systemic chemotherapy, remains the core of the current clinical management of cancer. Radioresistance is one of the major causes of disease progression and mortality in cancer; therefore, it is a significant challenge in the treatment of locally advanced, recurrent and metastatic cancer. Epigenetic mechanisms that control hallmarks of cancer have a key role in the development of radiation resistance of cancer cells. Recent advances in DNA methylation, histone modification, chromatin remodeling and non-coding RNAs identified in the control of signal transduction pathways in cancer and cancer stem cells have provided even greater promise in the improvement of understanding cancer radioresistance. Many epigenetic drugs that target epigenetic enzymes revert the radioresistant phenotypes decreasing the possibility that resistant cancer cells will develop refractory tumors to radiotherapy. Epigenetic profiles identified as regulators of DNA damage repair, hypoxia, cell survival, apoptosis and invasion are determinants in the development of tumor radioresistance; hence, they also are promising in personalized medicine to develop novel targeted therapies or biomarkers to follow-up the effectiveness of radiotherapy. Now, it is clear that radiotherapy can influence a complex epigenetic network for transcriptional reprogramming, enabling the cells to adapt and avoid the effect of radiotherapy. This review aims to highlight the epigenetic modifications identified in cancer radioresistance and to discuss approaches to disable epigenetic networks to increase the sensitivity and specificity of radiotherapy.
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Affiliation(s)
- Ariana Cabrera-Licona
- Departamento de Ciencias Naturales, Unidad Cuajimalpa, Universidad Autonoma Metropolitana, Ciudad de Mexico, Mexico; Posgrado en Ciencias Naturales e Ingenieria, Unidad Cuajimalpa, Universidad Autonoma Metropolitana, Ciudad de Mexico, Mexico
| | - Isidro X Pérez-Añorve
- Departamento de Ciencias Naturales, Unidad Cuajimalpa, Universidad Autonoma Metropolitana, Ciudad de Mexico, Mexico
| | - Mauricio Flores-Fortis
- Departamento de Ciencias Naturales, Unidad Cuajimalpa, Universidad Autonoma Metropolitana, Ciudad de Mexico, Mexico; Posgrado en Ciencias Naturales e Ingenieria, Unidad Cuajimalpa, Universidad Autonoma Metropolitana, Ciudad de Mexico, Mexico
| | - Oscar Del Moral-Hernández
- Laboratorio de Virologia y Epigenetica del Cancer, Facultad de Ciencias Quimico Biologicas, Universidad Autonoma de Guerrero, Chilpancingo, Mexico
| | | | - Rocio Suárez-Sánchez
- Laboratorio de Medicina Genomica, Departamento de Genetica, Instituto Nacional de Rehabilitacion LGII, Ciudad de Mexico, Mexico
| | - Margarita Chávez-Saldaña
- Laboratorio de Biologia de la Reproduccion, Instituto Nacional de Pediatria, Ciudad de Mexico, Mexico
| | - Elena Aréchaga-Ocampo
- Departamento de Ciencias Naturales, Unidad Cuajimalpa, Universidad Autonoma Metropolitana, Ciudad de Mexico, Mexico.
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12
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Salmerón-Bárcenas EG, Illades-Aguiar B, Del Moral-Hernández O, Ortega-Soto A, Hernández-Sotelo D. HOTAIR Knockdown Decreased the Activity Wnt/β-Catenin Signaling Pathway and Increased the mRNA Levels of Its Negative Regulators in Hela Cells. Cell Physiol Biochem 2019; 53:948-960. [PMID: 31820855 DOI: 10.33594/000000188] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/05/2019] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND/AIMS HOTAIR is a long non-coding RNA that promotes the development of human cancer. TET1 enzyme is involved in DNA demethylation by oxidation of 5-methylcytocine and it is considered a tumor suppressor in some types of cancer. HOTAIR and TET1 are involved in modulation of the Wnt/β-catenin signaling pathway, but their role in cervical cancer remains to be elucidated. The aim of this work was to analyze the effect of HOTAIR in TET1 expression, Wnt/β-catenin signaling, and expression, methylation and hidroxymethylation of some negative regulators of this pathway in HeLa cells. METHODS HOTAIR and TET expression were analyzed by RT-qPCR and western blot. The HOTAIR knockdown was done with DsiRNA and the activity of the Wnt/β-catenin signaling pathway through luciferase assays and β-catenin nuclear translocation. The mRNA levels of SNAIL, EDN3, CYCD1, SPRY2 (targets of Wnt/β-catenin pathway) PCDH10, SOX17, AJAP1, and MAGI2 (negative regulators of Wnt/β-catenin pathway) were evaluated by RT-qPCR. The DNA methylation and hidroxymethylation of negative regulators of the Wnt/β-catenin pathway were evaluated by methylation-specific PCR and chemical modification, followed by digestion and quantitative PCR. RESULTS HOTAIR knockdown in HeLa cells decreased the activity of Wnt/β-catenin signaling pathway. It increased the mRNA levels of Wnt/ β-catenin negative regulators through a decrease in their promoter's methylation pattern. TET1 enzyme was also down-regulated in HOTAIR knockdown cells. CONCLUSION Our study suggests a mechanism in which HOTAIR promotes the over-activation of Wnt/β-catenin signaling pathway by downregulation of PCDH10, SOX17, AJAP1 and MAGI2 and also TET.
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Affiliation(s)
- Eric Genaro Salmerón-Bárcenas
- Laboratorio de Epigenética del Cáncer, Facultad de Ciencias Químico Biológicas/Universidad Autónoma de Guerrero, Chilpancingo de los Bravo, México.,Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas/Universidad Autónoma de Guerrero, Chilpancingo de los Bravo, México
| | - Berenice Illades-Aguiar
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas/Universidad Autónoma de Guerrero, Chilpancingo de los Bravo, México
| | - Oscar Del Moral-Hernández
- Laboratorio de Virología del Cáncer, Facultad de Ciencias Químico Biológicas/Universidad Autónoma de Guerrero, Chilpancingo de los Bravo, México
| | - Arturo Ortega-Soto
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados/Instituto Politécnico Nacional, Ciudad de México, México
| | - Daniel Hernández-Sotelo
- Laboratorio de Epigenética del Cáncer, Facultad de Ciencias Químico Biológicas/Universidad Autónoma de Guerrero, Chilpancingo de los Bravo, México,
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13
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Del Moral-Hernández O, Castañón-Sánchez CA, Reyes-Navarrete S, Martínez-Carrillo DN, Betancourt-Linares R, Jiménez-Wences H, de la Peña S, Román-Román A, Hernández-Sotelo D, Fernández-Tilapa G. Multiple infections by EBV, HCMV and Helicobacter pylori are highly frequent in patients with chronic gastritis and gastric cancer from Southwest Mexico: An observational study. Medicine (Baltimore) 2019; 98:e14124. [PMID: 30653141 PMCID: PMC6370051 DOI: 10.1097/md.0000000000014124] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The chronic inflammation and damage to the gastric epithelium induced by Helicobacter pylori (H. pylori) are the main risk factors for gastric cancer development. Epstein-Barr virus (EBV) and human cytomegalovirus (HCMV) induce chronic inflammation and have been found in gastric tumors. The objectives this observational study were to determine the frequency of multiple infections by Helicobacter pylori, Epstein-Barr virus (EBV) and human cytomegalovirus (HCMV) and to relate the infection by EBV and HCMV with H. pylori vacA/cagA genotypes in patients with chronic gastritis or gastric cancer. DNA from H. pylori, EBV and HCMV was detected by PCR in biopsies from 106 Mexican patients with chronic gastritis and 32 from gastric cancer. The cagA status and the vacA genotypes of H. pylori were determined by PCR. In chronic gastritis and gastric cancer EBV was found in 69.8% and 87.5%, HCMV in 52.8% and 53.1%, and H. pylori in 48.1% and 40.6%, respectively. In chronic gastritis, 53% of H. pylori patients were EBV and 33% were both EBV/HCMV; in gastric cancer, 92.3% of H. pylori-infected individuals were EBV and 46.1% were EVB/HCMV. All the intestinal- and mixed-type tumors and the 83.3% of diffuse-type tumors were EBV. No significant differences were found between single infections or coinfections with the diagnosis or the cancer type. The H. pylori genotypes were not related to EBV or HCMV infection. The frequency of dual infections by H. pylori, EBV and HCMV is higher in patients from southwest Mexico than other populations. It is likely that these pathogens act synergistically to induce inflammation and gastric cancer.
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Affiliation(s)
- Oscar Del Moral-Hernández
- Laboratory of Virology and Epigenetics of Cancer, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero, Chilpancingo, Guerrero
| | | | | | | | | | - Hilda Jiménez-Wences
- Laboratory of Clinical Research, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero
| | - Sol de la Peña
- Postdoctoral Fellow CONACYT in Laboratory of Clinical Research, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero
| | - Adolfo Román-Román
- Laboratory of Bacteriology Research, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero, Chilpancingo, Guerrero, Mexico
| | - Daniel Hernández-Sotelo
- Laboratory of Virology and Epigenetics of Cancer, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero, Chilpancingo, Guerrero
| | - Gloria Fernández-Tilapa
- Laboratory of Clinical Research, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero
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14
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Torres-Rojas FI, Alarcón-Romero LDC, Leyva-Vázquez MA, Ortiz-Ortiz J, Mendoza-Catalán MÁ, Hernández-Sotelo D, Del Moral-Hernández O, Rodríguez-Ruiz HA, Leyva-Illades D, Flores-Alfaro E, Illades-Aguiar B. Methylation of the L1 gene and integration of human papillomavirus 16 and 18 in cervical carcinoma and premalignant lesions. Oncol Lett 2017; 15:2278-2286. [PMID: 29434935 PMCID: PMC5776931 DOI: 10.3892/ol.2017.7596] [Citation(s) in RCA: 7] [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: 10/21/2016] [Accepted: 09/13/2017] [Indexed: 11/06/2022] Open
Abstract
High-risk human papillomavirus (HPV) is the primary cause of cervical carcinoma (CC). Viral integration into the host chromosomes is associated with neoplastic progression, and epigenetic changes may occur as a result. The objective of the present study was to analyze HPV L1 gene methylation and to compare the use of quantitative polymerase chain reaction (qPCR), in situ hybridization (ISH) and L1 methylation analysis as methods for detecting HPV integration. Cervical scrapes or biopsy samples positive for HPV 16 or 18, from 187 female patients with CC, squamous intraepithelial lesions (SILs) or no intraepithelial lesion (non-IL) were analyzed. Methylation of the L1 gene was determined using bisulfite modification followed by PCR, and HPV integration was subsequently analyzed. HPV 16 L1 gene methylation was revealed to increase with histological grade, with statistically significant differences observed as follows: Low-grade SIL vs. CC, P<0.0001 and non-IL vs. CC, P<0.0001. HPV 18 L1 gene methylation also increased according to histological grade, however, no statistically significant differences were observed. Methylation at CpG site 5608 of the HPV 16 L1 gene was associated with all grades of cervical lesions, whereas methylation at CpG site 5617 demonstrated the strongest association with CC (odds ratio, 42.5; 95% confidence interval, 4.7-1861; P<0.0001). The concordance rates between the various methods for the detection of the physical status of HPV 16 and HPV 18 were 96.1% for qPCR and ISH, 76.7% for qPCR and L1 gene methylation, and 84.8% for ISH and L1 gene methylation. In conclusion, methylation of the HPV 16 L1 gene increases significantly according to the grade of the cervical lesion, and methylation at CpG sites 5608 and 5617 of this gene may be used as prognostic biomarkers. ISH and L1 gene methylation have good concordance with qPCR with regards to the detection of HPV integration. Therefore, these are useful methods in determining the physical state of HPV.
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Affiliation(s)
- Francisco Israel Torres-Rojas
- Laboratory of Molecular Biomedicine, School of Chemical and Biological Sciences, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero 39090, Mexico
| | - Luz Del Carmen Alarcón-Romero
- Laboratory of Cytopathology and Histochemistry, School of Chemical and Biological Sciences, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero 39090, Mexico
| | - Marco Antonio Leyva-Vázquez
- Laboratory of Molecular Biomedicine, School of Chemical and Biological Sciences, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero 39090, Mexico
| | - Julio Ortiz-Ortiz
- Laboratory of Molecular Biomedicine, School of Chemical and Biological Sciences, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero 39090, Mexico
| | - Miguel Ángel Mendoza-Catalán
- Laboratory of Molecular Biomedicine, School of Chemical and Biological Sciences, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero 39090, Mexico
| | - Daniel Hernández-Sotelo
- Laboratory of Molecular Biomedicine, School of Chemical and Biological Sciences, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero 39090, Mexico
| | - Oscar Del Moral-Hernández
- Laboratory of Molecular Biomedicine, School of Chemical and Biological Sciences, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero 39090, Mexico
| | - Hugo Alberto Rodríguez-Ruiz
- Laboratory of Molecular Biomedicine, School of Chemical and Biological Sciences, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero 39090, Mexico
| | - Dinorah Leyva-Illades
- Laboratory of Molecular Biomedicine, School of Chemical and Biological Sciences, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero 39090, Mexico
| | - Eugenia Flores-Alfaro
- Laboratory of Molecular Biomedicine, School of Chemical and Biological Sciences, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero 39090, Mexico
| | - Berenice Illades-Aguiar
- Laboratory of Molecular Biomedicine, School of Chemical and Biological Sciences, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero 39090, Mexico
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15
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Zacapala-Gómez AE, Del Moral-Hernández O, Villegas-Sepúlveda N, Hidalgo-Miranda A, Romero-Córdoba SL, Beltrán-Anaya FO, Leyva-Vázquez MA, Alarcón-Romero LDC, Illades-Aguiar B. Changes in global gene expression profiles induced by HPV 16 E6 oncoprotein variants in cervical carcinoma C33-A cells. Virology 2015; 488:187-95. [PMID: 26655236 DOI: 10.1016/j.virol.2015.11.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [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: 08/25/2015] [Revised: 11/12/2015] [Accepted: 11/16/2015] [Indexed: 01/03/2023]
Abstract
We analyzed the effects of the expression of HPV 16 E6 oncoprotein variants (AA-a, AA-c, E-A176/G350, E-C188/G350, E-G350), and the E-Prototype in global gene expression profiles in an in vitro model. E6 gene was cloned into an expression vector fused to GFP and was transfected in C33-A cells. Affymetrix GeneChip Human Transcriptome Array 2.0 platform was used to analyze the expression of over 245,000 coding transcripts. We found that HPV16 E6 variants altered the expression of 387 different genes in comparison with E-Prototype. The altered genes are involved in cellular processes related to the development of cervical carcinoma, such as adhesion, angiogenesis, apoptosis, differentiation, cell cycle, proliferation, transcription and protein translation. Our results show that polymorphic changes in HPV16 E6 natural variants are sufficient to alter the overall gene expression profile in C33-A cells, explaining in part the observed differences in oncogenic potential of HPV16 variants.
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Affiliation(s)
- Ana Elvira Zacapala-Gómez
- Laboratorio de Biomedicina Molecular, Unidad Académica de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Gro., México.
| | - Oscar Del Moral-Hernández
- Laboratorio de Biomedicina Molecular, Unidad Académica de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Gro., México.
| | - Nicolás Villegas-Sepúlveda
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), México, D.F., México.
| | - Alfredo Hidalgo-Miranda
- Laboratorio de Genómica del Cáncer, Instituto Nacional de Medicina Genómica (INMEGEN), México, D.F., México.
| | | | - Fredy Omar Beltrán-Anaya
- Laboratorio de Genómica del Cáncer, Instituto Nacional de Medicina Genómica (INMEGEN), México, D.F., México.
| | - Marco Antonio Leyva-Vázquez
- Laboratorio de Biomedicina Molecular, Unidad Académica de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Gro., México.
| | - Luz Del Carmen Alarcón-Romero
- Laboratorio de Investigación en Citopatología e Histoquímica, Unidad Académica de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Gro., México.
| | - Berenice Illades-Aguiar
- Laboratorio de Biomedicina Molecular, Unidad Académica de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Gro., México.
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16
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Cahua-Pablo G, Cruz M, Moral-Hernández OD, Leyva-Vázquez MA, Antúnez-Ortiz DL, Cahua-Pablo JA, Alarcón-Romero LDC, Ortuño-Pineda C, Moreno-Godínez ME, Hernández-Sotelo D, Flores-Alfaro E. Elevated Levels of LDL-C are Associated With ApoE4 but Not With the rs688 Polymorphism in the LDLR Gene. Clin Appl Thromb Hemost 2015; 22:465-70. [PMID: 25601895 DOI: 10.1177/1076029614568714] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
INTRODUCTION Apolipoprotein E (ApoE) 4 isoform has been associated with elevated levels of cholesterol, low-density lipoprotein cholesterol (LDL-C), and triglycerides (TGs), meanwhile several polymorphisms in the LDL receptor (LDLR) gene have been associated with increased levels of total cholesterol and LDL-C. MATERIAL AND METHODS We studied 400 women from Southwest Mexico. Anthropometric features and biochemical profile were evaluated, and genotyping of single nucleotide polymorphisms rs429358 and rs7412 in the APOE gene and rs688 in the LDLR gene was determined by TaqMan assays. RESULTS We found significant association between LDL-C (odds ratio [OR] = 3.3, 95% confidence interval [CI]: 1.9-5.7) and marginal association with TG (OR = 1.7, 95% CI: 1.0-2.9) of atherogenic risk in women carriers of the ApoE4 isoform compared to ApoE3. The TT genotype of rs688 in the LDLR gene was not found to be associated with elevated levels of total cholesterol or LDL-C. CONCLUSION Our results show that carrier women of the ApoE4 isoform are more likely to have elevated levels of LDL-C and therefore increased risk of developing atherosclerosis.
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Affiliation(s)
- Gabriel Cahua-Pablo
- Clinical and Molecular Epidemiology Laboratory, UA of Chemical and Biological Sciences, Autonomous University of Guerrero, Mexico
| | - Miguel Cruz
- Biochemistry Medical Research Unit, Specialties Hospital, Medical Center Century XXI, Mexican Institute of Social Security, México, Distrito Federal
| | - Oscar Del Moral-Hernández
- Laboratory of Molecular Biomedicine, UA of Chemical and Biological Sciences, Autonomous University of Guerrero, Mexico
| | - Marco A Leyva-Vázquez
- Laboratory of Molecular Biomedicine, UA of Chemical and Biological Sciences, Autonomous University of Guerrero, Mexico
| | - Diana L Antúnez-Ortiz
- Biochemistry Medical Research Unit, Specialties Hospital, Medical Center Century XXI, Mexican Institute of Social Security, México, Distrito Federal
| | - José A Cahua-Pablo
- Clinical and Molecular Epidemiology Laboratory, UA of Chemical and Biological Sciences, Autonomous University of Guerrero, Mexico
| | - Luz Del Carmen Alarcón-Romero
- Clinical and Molecular Epidemiology Laboratory, UA of Chemical and Biological Sciences, Autonomous University of Guerrero, Mexico Laboratory of Molecular Biomedicine, UA of Chemical and Biological Sciences, Autonomous University of Guerrero, Mexico
| | - Carlos Ortuño-Pineda
- Clinical and Molecular Epidemiology Laboratory, UA of Chemical and Biological Sciences, Autonomous University of Guerrero, Mexico
| | - Ma Elena Moreno-Godínez
- Clinical and Molecular Epidemiology Laboratory, UA of Chemical and Biological Sciences, Autonomous University of Guerrero, Mexico
| | - Daniel Hernández-Sotelo
- Laboratory of Molecular Biomedicine, UA of Chemical and Biological Sciences, Autonomous University of Guerrero, Mexico
| | - Eugenia Flores-Alfaro
- Clinical and Molecular Epidemiology Laboratory, UA of Chemical and Biological Sciences, Autonomous University of Guerrero, Mexico
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17
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Martínez-Salazar M, López-Urrutia E, Arechaga-Ocampo E, Bonilla-Moreno R, Martínez-Castillo M, Díaz-Hernández J, Del Moral-Hernández O, Cedillo-Barrón L, Martines-Juarez V, De Nova-Ocampo M, Valdes J, Berumen J, Villegas-Sepúlveda N. Biochemical and proteomic analysis of spliceosome factors interacting with intron-1 of human papillomavirus type-16. J Proteomics 2014; 111:184-97. [PMID: 25108200 DOI: 10.1016/j.jprot.2014.07.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 01/22/2014] [Revised: 06/21/2014] [Accepted: 07/28/2014] [Indexed: 01/16/2023]
Abstract
The human papillomavirus type 16 (HPV-16) E6/E7 spliced transcripts are heterogeneously expressed in cervical carcinoma. The heterogeneity of the E6/E7 splicing profile might be in part due to the intrinsic variation of splicing factors in tumor cells. However, the splicing factors that bind the E6/E7 intron 1 (In-1) have not been defined. Therefore, we aimed to identify these factors; we used HeLa nuclear extracts (NE) for in vitro spliceosome assembly. The proteins were allowed to bind to an RNA/DNA hybrid formed by the In-1 transcript and a 5'-biotinylated DNA oligonucleotide complementary to the upstream exon sequence, which prevented interference in protein binding to the intron. The hybrid probes bound with the nuclear proteins were coupled to streptavidin magnetic beads for chromatography affinity purification. Proteins were eluted and identified by mass spectrometry (MS). Approximately 170 proteins were identified by MS, 80% of which were RNA binding proteins, including canonical spliceosome core components, helicases and regulatory splicing factors. The canonical factors were identified as components of the spliceosomal B-complex. Although 35-40 of the identified factors were cognate splicing factors or helicases, they have not been previously detected in spliceosome complexes that were assembled using in vivo or in vitro models.
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Affiliation(s)
- Martha Martínez-Salazar
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados (CINVESTAV) Apdo. Postal 14-740, 07360, México D.F., Mexico; Unidad de Investigación Médica en Inmunoquímica, Hospital de Especialidades del Centro Médico Nacional "Siglo XXI" IMSS, 03020 México D.F., Mexico
| | | | - Elena Arechaga-Ocampo
- Departamento de Ciencias Naturales, División de Ciencias Naturales e Ingenieria, Universidad Autónoma Metropolitana-Cuajimalpa, Av. Vasco de Quiroga 4871, Col. Santa Fe Cuajimalpa de Morelos, D.F. C.P. 05300, Mexico
| | - Raul Bonilla-Moreno
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados (CINVESTAV) Apdo. Postal 14-740, 07360, México D.F., Mexico
| | - Macario Martínez-Castillo
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados (CINVESTAV) Apdo. Postal 14-740, 07360, México D.F., Mexico
| | - Job Díaz-Hernández
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados (CINVESTAV) Apdo. Postal 14-740, 07360, México D.F., Mexico
| | - Oscar Del Moral-Hernández
- Laboratorio de Biomedicina Molecular, Unidad Académica de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Avenida Lázaro Cárdenas S/N, Ciudad Universitaria, 39090 Chilpancingo, Gro, Mexico
| | - Leticia Cedillo-Barrón
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados (CINVESTAV) Apdo. Postal 14-740, 07360, México D.F., Mexico
| | - Víctor Martines-Juarez
- Área Académica de Medicina Veterinaria y Zootecnia, Universidad Autónoma del estado de Hidalgo, Tulancingo, Hgo, Mexico
| | - Monica De Nova-Ocampo
- Programa Institucional de Biomedicina Molecular Escuela Nacional de Medicina y Homeopatía, IPN, México D.F., Mexico
| | - Jesús Valdes
- Depto. Bioquímica, Centro de Investigación y de Estudios Avanzados-IPN (CINVESTAV-IPN), Unidad Zacatenco, 07360 México D.F., Mexico
| | - Jaime Berumen
- Facultad de Medicina, UNAM, 04510 México D.F., Mexico; Unidad de Medicina Genómica, Hospital General, México D.F., Mexico
| | - Nicolás Villegas-Sepúlveda
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados (CINVESTAV) Apdo. Postal 14-740, 07360, México D.F., Mexico.
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18
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Parra-Rojas I, Del Moral-Hernández O, Salgado-Bernabé AB, Guzmán-Guzmán IP, Salgado-Goytia L, Muñoz-Valle JF. Adenovirus-36 seropositivity and its relation with obesity and metabolic profile in children. Int J Endocrinol 2013; 2013:463194. [PMID: 24324491 PMCID: PMC3845401 DOI: 10.1155/2013/463194] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Accepted: 10/07/2013] [Indexed: 12/11/2022] Open
Abstract
The human adenovirus 36 (Ad-36) is causally and correlatively associated in animals and humans, respectively, with increased adiposity and altered metabolic profile. In previous studies, the relationship between Ad-36 seropositivity with obesity was established in adults and children. We evaluated the association of positive antibodies to Ad-36 with obesity and metabolic profile in Mexican children. Seventy-five children with normal-weight and 82 with obesity were studied in this research. All children had a clinic assessment which included weight, height, body circumferences, and skinfold thickness. Laboratory analyzes included triglycerides, total cholesterol, high-density lipoprotein, low-density lipoprotein, and glucose and insulin levels. An enzyme-linked immunosorbent assay (ELISA) was used to determine the antibodies to Ad-36 in the serum samples. The overall Ad-36 seroprevalence was 73.9%. Ad-36 seropositivity had a higher prevalence in obese children than in normal weight group (58.6 versus 41.4%, P = 0.007). Ad-36 seropositivity was associated with obesity (OR = 2.66, P = 0.01) and high-density lipoprotein <40 mg/dL (OR = 2.85, P = 0.03). The Ad-36 seropositive group had greater risk of 4 metabolic abnormalities compared with those children without none alteration. In summary, Ad-36 seropositivity was associated with obesity and low HDL-c levels in the sample of children studied.
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Affiliation(s)
- Isela Parra-Rojas
- Laboratorio de Investigación en Obesidad y Diabetes, Unidad Académica de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Avenida Lázaro Cárdenas S/N, Ciudad Universitaria, 39090 Chilpancingo, GR, Mexico
- *Isela Parra-Rojas:
| | - Oscar Del Moral-Hernández
- Laboratorio de Biomedicina Molecular, Unidad Académica de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Avenida Lázaro Cárdenas S/N, Ciudad Universitaria, 39090 Chilpancingo, GR, Mexico
| | - Aralia B. Salgado-Bernabé
- Laboratorio de Investigación en Obesidad y Diabetes, Unidad Académica de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Avenida Lázaro Cárdenas S/N, Ciudad Universitaria, 39090 Chilpancingo, GR, Mexico
| | - Iris P. Guzmán-Guzmán
- Laboratorio de Investigación en Obesidad y Diabetes, Unidad Académica de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Avenida Lázaro Cárdenas S/N, Ciudad Universitaria, 39090 Chilpancingo, GR, Mexico
| | - Lorenzo Salgado-Goytia
- Laboratorio de Investigación en Obesidad y Diabetes, Unidad Académica de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Avenida Lázaro Cárdenas S/N, Ciudad Universitaria, 39090 Chilpancingo, GR, Mexico
| | - José F. Muñoz-Valle
- Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Instituto de Investigación en Ciencias Biomédicas, Universidad de Guadalajara, Sierra Mojada 950, 44350 Guadalajara, JA, Mexico
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