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Ocharán-Mercado A, Loaeza-Loaeza J, Castro-Coronel Y, Acosta-Saavedra LC, Hernández-Kelly LC, Hernández-Sotelo D, Ortega A. RNA-Binding Proteins: A Role in Neurotoxicity? Neurotox Res 2023; 41:681-697. [PMID: 37776476 PMCID: PMC10682104 DOI: 10.1007/s12640-023-00669-w] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 03/15/2023] [Accepted: 09/19/2023] [Indexed: 10/02/2023]
Abstract
Despite sustained efforts to treat neurodegenerative diseases, little is known at the molecular level to understand and generate novel therapeutic approaches for these malignancies. Therefore, it is not surprising that neurogenerative diseases are among the leading causes of death in the aged population. Neurons require sophisticated cellular mechanisms to maintain proper protein homeostasis. These cells are generally sensitive to loss of gene expression control at the post-transcriptional level. Post-translational control responds to signals that can arise from intracellular processes or environmental factors that can be regulated through RNA-binding proteins. These proteins recognize RNA through one or more RNA-binding domains and form ribonucleoproteins that are critically involved in the regulation of post-transcriptional processes from splicing to the regulation of association of the translation machinery allowing a relatively rapid and precise modulation of the transcriptome. Neurotoxicity is the result of the biological, chemical, or physical interaction of agents with an adverse effect on the structure and function of the central nervous system. The disruption of the proper levels or function of RBPs in neurons and glial cells triggers neurotoxic events that are linked to neurodegenerative diseases such as spinal muscular atrophy (SMA), amyotrophic lateral sclerosis (ALS), fragile X syndrome (FXS), and frontotemporal dementia (FTD) among many others. The connection between RBPs and neurodegenerative diseases opens a new landscape for potentially novel therapeutic targets for the intervention of these neurodegenerative pathologies. In this contribution, a summary of the recent findings of the molecular mechanisms involved in the plausible role of RBPs in RNA processing in neurodegenerative disease is discussed.
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Affiliation(s)
- Andrea Ocharán-Mercado
- Laboratorio de Neurotoxicología, Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Av. IPN 2508, San Pedro Zacatenco, 07300 CDMX, México
| | - Jaqueline Loaeza-Loaeza
- Laboratorio de Neurotoxicología, Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Av. IPN 2508, San Pedro Zacatenco, 07300 CDMX, México
| | - Yaneth Castro-Coronel
- Laboratorio de Epigenética del Cáncer, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas 88, Chilpancingo, Guerrero, 39086, México
| | - Leonor C Acosta-Saavedra
- Laboratorio de Neurotoxicología, Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Av. IPN 2508, San Pedro Zacatenco, 07300 CDMX, México
| | - Luisa C Hernández-Kelly
- Laboratorio de Neurotoxicología, Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Av. IPN 2508, San Pedro Zacatenco, 07300 CDMX, México
| | - Daniel Hernández-Sotelo
- Laboratorio de Epigenética del Cáncer, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas 88, Chilpancingo, Guerrero, 39086, México
| | - Arturo Ortega
- Laboratorio de Neurotoxicología, Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Av. IPN 2508, San Pedro Zacatenco, 07300 CDMX, México.
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Cruz-Facundo IM, Adame-Gómez R, Castro-Alarcón N, Toribio-Jiménez J, Castro-Coronel Y, Santiago-Dionisio MC, Leyva-Vázquez MA, Tafolla-Venegas D, Ramírez-Peralta A. Enterotoxigenic profiles and submerged and interface biofilms in Bacillus cereus group isolates from foods. Rev Argent Microbiol 2023; 55:262-271. [PMID: 37019800 DOI: 10.1016/j.ram.2023.01.007] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 01/24/2023] [Accepted: 01/26/2023] [Indexed: 04/05/2023] Open
Abstract
Biofilm formation by Bacillus cereus strains is now recognized as a systematic contamination mechanism in foods; the aim of this study was to evaluate the production of submerged and interface biofilms in strains of B. cereus group in different materials, the effect of dextrose, motility, the presence of genes related to biofilms and the enterotoxigenic profile of the strains. We determine biofilm production by safranin assay, motility on semi-solid medium, toxin gene profiling and genes related to biofilm production by PCR in B. cereus group isolated from food. In this study, we observe strains used a higher production of biofilms in PVC; in the BHI broth, no submerged biofilms were found compared to phenol red broth and phenol red broth supplemented with dextrose; no strains with the ces gene were found, the enterotoxin profile was the most common the profile that includes genes for the three enterotoxins. We observed a different distribution of tasA and sipW with the origin of isolation of the strain, being more frequent in the strains isolated from eggshell. The production and type of biofilms are differential according to the type of material and culture medium used.
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Affiliation(s)
- Itzel-Maralhi Cruz-Facundo
- Universidad Autónoma de Guerrero, Laboratorio de Investigación en Patometabolismo Microbiano, Facultad de Ciencias Químico Biológicas, Chilpancingo de los Bravo, Guerrero 39070, Mexico
| | - Roberto Adame-Gómez
- Universidad Autónoma de Guerrero, Laboratorio de Investigación en Patometabolismo Microbiano, Facultad de Ciencias Químico Biológicas, Chilpancingo de los Bravo, Guerrero 39070, Mexico
| | - Natividad Castro-Alarcón
- Universidad Autónoma de Guerrero, Laboratorio de Investigación en Microbiología, Facultad de Ciencias Químico Biológicas, Chilpancingo de los Bravo, Guerrero CP39070, Mexico
| | - Jeiry Toribio-Jiménez
- Universidad Autónoma de Guerrero, Laboratorio de Investigación en Microbiología Molecular y Biotecnología Ambiental, Facultad de Ciencias Químico Biológicas, Chilpancingo de los Bravo, Guerrero CP39070, Mexico
| | - Yaneth Castro-Coronel
- Universidad Autónoma de Guerrero, Laboratorio de Investigación en Citopatología e Histoquímica, Facultad de Ciencias Químico Biológicas, Chilpancingo de los Bravo, Guerrero CP39070, Mexico
| | - María-Cristina Santiago-Dionisio
- Universidad Autónoma de Guerrero, Laboratorio de Investigación en Análisis Microbiológicos, Facultad de Ciencias Químico Biológicas, Chilpancingo de los Bravo, Guerrero CP39070, Mexico
| | - Marco-Antonio Leyva-Vázquez
- Universidad Autónoma de Guerrero, Laboratorio de Investigación en Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Chilpancingo de los Bravo, Guerrero CP39070, Mexico
| | - David Tafolla-Venegas
- Universidad Michoacana de San Nicolás de Hidalgo, Facultad de Biología, Laboratorio de Parasitología, Morelia, Michoacan 58004, Mexico
| | - Arturo Ramírez-Peralta
- Universidad Autónoma de Guerrero, Laboratorio de Investigación en Patometabolismo Microbiano, Facultad de Ciencias Químico Biológicas, Chilpancingo de los Bravo, Guerrero 39070, Mexico.
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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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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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Zubillaga-Guerrero MI, Illades-Aguiar B, Flores-Alfaro E, Castro-Coronel Y, Jiménez-Wences H, Patiño EILB, Pérez KIG, Del Carmen Alarcón-Romero L. An increase of microRNA-16-1 is associated with the high proliferation of squamous intraepithelial lesions in the presence of the integrated state of HR-HPV in liquid cytology samples. Oncol Lett 2020; 20:104. [PMID: 32831923 PMCID: PMC7439130 DOI: 10.3892/ol.2020.11965] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 07/22/2020] [Indexed: 12/24/2022] Open
Abstract
Studies of cervical cancer (CC) have reported that microRNA-16-1 (miR-16-1), which is an oncomiR, is increased in the tissues and cell lines of CC. The aim of the present study was to investigate the association of miRNA-16-1 expression level with squamous cell carcinoma (SCC), the presence of squamous intraepithelial lesions (SIL) and the integration of high-risk human papillomavirus (HR-HPV) DNA. The current study analyzed 80 samples obtained from women by liquid-based cytology, which revealed that 20 were negative for SIL (NSIL) and without HPV, 20 were low-grade SIL (LSIL), 20 were high-grade SIL (HSIL), and 20 were diagnosed as SCC with HR-HPV. The genotyping of the viral DNA was conducted via an INNO-LiPA-HPV array, the expression of miR-16-1 was determined by reverse transcription-quantitative PCR, and the physical state of the HR-HPV was ascertained by in situ hybridization with amplification with tyramide. A total of eight HR-HPV genotypes were distinguished; the most frequent of these being HPV16, followed by multiple infection with HR-HPV (including HPV16). The mixed state of the HR-HPV was observed in 60 and 65% of LSIL and HSIL cases, respectively, while an integrated HR-HPV state was identified in 90% of cases with SCC. The expression level of miR-16-1 increased according to the grade of SIL, and cases with HSIL exhibited a significantly higher miR-16-1 expression level compared with women with NSIL (P<0.001; Table II). It can therefore be determined that the expression of miR-16-1 effects cellular proliferation, due to the viral integration of various HR-HPV genotypes in unique infection or in multiple infection. Thus, the overexpression of miR-16-1 could be monitored in women with LSIL, in order to discard a major lesion.
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Affiliation(s)
- Ma Isabel Zubillaga-Guerrero
- Laboratory for Research in Cytopathology and Histochemical, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero, Chilpancingo, Guerrero 39089, Mexico
| | - Berenice Illades-Aguiar
- Laboratory for Molecular Biomedicine, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero, Chilpancingo, Guerrero 39089, Mexico
| | - Eugenia Flores-Alfaro
- Laboratory for Research in Clinical and Molecular Epidemiology, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero, Chilpancingo, Guerrero 39089, Mexico
| | - Yaneth Castro-Coronel
- Laboratory for Research in Cytopathology and Histochemical, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero, Chilpancingo, Guerrero 39089, Mexico
| | - Hilda Jiménez-Wences
- Laboratory for Research in Biomolecules, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero, Chilpancingo, Guerrero 39089, Mexico
| | | | - Karen Itzel García Pérez
- Laboratory for Research in Cytopathology and Histochemical, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero, Chilpancingo, Guerrero 39089, Mexico
| | - Luz Del Carmen Alarcón-Romero
- Laboratory for Research in Cytopathology and Histochemical, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero, Chilpancingo, Guerrero 39089, Mexico
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Sánchez-Valdeolívar CA, Alvarez-Fitz P, Zacapala-Gómez AE, Acevedo-Quiroz M, Cayetano-Salazar L, Olea-Flores M, Castillo-Reyes JU, Navarro-Tito N, Ortuño-Pineda C, Leyva-Vázquez MA, Ortíz-Ortíz J, Castro-Coronel Y, Mendoza-Catalán MA. Phytochemical profile and antiproliferative effect of Ficus crocata extracts on triple-negative breast cancer cells. BMC Complement Med Ther 2020; 20:191. [PMID: 32571387 PMCID: PMC7309984 DOI: 10.1186/s12906-020-02993-6] [Citation(s) in RCA: 11] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 06/16/2020] [Indexed: 12/25/2022] Open
Abstract
Background Some species of the Ficus genus show pharmacological activity, including antiproliferative activity, in cell lines of several cancer Types. ficus crocata is distributed in Mexico and used in traditional medicine, as it is believed to possess anti-inflammatory, analgesic, and antioxidant properties. However, as of yet, there are no scientific reports on its biological activity. This study aims to evaluate the phytochemical profile of F. crocata leaf extracts and their effects on breast cancer MDA-MB-231 cells proliferation. Moreover, the study aims to unearth possible mechanisms involved in the decrease of cell proliferation. Methods The extracts were obtained by the maceration of leaves with the solvents hexane, dichloromethane, and acetone. The phytochemical profile of the extracts was determined using gas chromatography coupled with mass analysis. Cell proliferation, apoptosis, and cell cycle analysis in MDA-MB-231 cells were determined using a Crystal violet assay, MTT assay, and Annexin-V/PI assay using flow cytometry. The data were analyzed using ANOVA and Dunnett’s test. Results The hexane (Hex-EFc), dichloromethane (Dic-EFc), and acetone (Ace-EFc) extracts of F. crocata decreased the proliferation of MDA-MB-231 cells, with Dic-EFc having the strongest effect. Dic-EFc was fractioned and its antiproliferative activity was potentiated, which enhanced its ability to induce apoptosis in MDA-MB-231 cells, as well as increased p53, procaspase-8, and procaspase-3 expression. Conclusions This study provides information on the biological activity of F. crocata extracts and suggests their potential use against triple-negative breast cancer.
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Affiliation(s)
- Carlos A Sánchez-Valdeolívar
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | | | - Ana E Zacapala-Gómez
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | - Macdiel Acevedo-Quiroz
- Tecnológico Nacional de México, Instituto Tecnológico de Zacatepec, Calzada Tecnológico 27, Centro, 62780, Zacatepec, Morelos, Mexico
| | - Lorena Cayetano-Salazar
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | - Monserrat Olea-Flores
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | - Jhonathan U Castillo-Reyes
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | - Napoleón Navarro-Tito
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | - Carlos Ortuño-Pineda
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | - Marco A Leyva-Vázquez
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | - Julio Ortíz-Ortíz
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | - Yaneth Castro-Coronel
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | - Miguel A Mendoza-Catalán
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico.
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Peralta-Arrieta I, Hernández-Sotelo D, Castro-Coronel Y, Leyva-Vázquez MA, Illades-Aguiar B. DNMT3B modulates the expression of cancer-related genes and downregulates the expression of the gene VAV3 via methylation. Am J Cancer Res 2017; 7:77-87. [PMID: 28123849 PMCID: PMC5250682] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Accepted: 09/02/2016] [Indexed: 06/06/2023] Open
Abstract
Altered promoter DNA methylation is one of the most important epigenetic abnormalities in human cancer. DNMT3B, de novo methyltransferase, is clearly related to abnormal methylation of tumour suppressor genes, DNA repair genes and its overexpression contributes to oncogenic processes and tumorigenesis in vivo. The purpose of this study was to assess the effect of the overexpression of DNMT3B in HaCaT cells on global gene expression and on the methylation of selected genes to the identification of genes that can be target of DNMT3B. We found that the overexpression of DNMT3B in HaCaT cells, modulate the expression of genes related to cancer, downregulated the expression of 151 genes with CpG islands and downregulated the expression of the VAV3 gene via methylation of its promoter. These results highlight the importance of DNMT3B in gene expression and human cancer.
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Affiliation(s)
- Irlanda Peralta-Arrieta
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de GuerreroChilpancingo, Guerrero, México
| | - Daniel Hernández-Sotelo
- Laboratorio de Epigenética del Cáncer, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de GuerreroChilpancingo, Guerrero, México
| | - Yaneth Castro-Coronel
- Laboratorio de Investigación en Citopatología e Histoquímica, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de GuerreroChilpancingo, Guerrero, México
| | - Marco Antonio Leyva-Vázquez
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de GuerreroChilpancingo, Guerrero, México
| | - Berenice Illades-Aguiar
- Laboratorio de Biomedicina Molecular, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de GuerreroChilpancingo, Guerrero, México
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Hernández-Sotelo D, García-Aguilar R, Castro-Coronel Y, Magaña JJ, Leyva-Vazquez MA, Alarcón-Romero LDC, López-Bayghen E, Illades-Aguiar B. The 46359CT polymorphism of DNMT3B is associated with the risk of cervical cancer. Mol Biol Rep 2013; 40:4275-80. [PMID: 23677709 DOI: 10.1007/s11033-013-2511-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 04/27/2013] [Indexed: 11/26/2022]
Abstract
Abnormal methylation is related to cancer development. Since DNMT3B is an enzyme that modulates genomic methylation, we hypothesized that genetic variants of the promoter DNMT3B may be associated with an increased risk of developing cervical cancer. Our aim was to investigate the association between -579GT and 46359CT polymorphisms of DNMT3B and cervical cancer, high-grade squamous intraepithelial lesions (HSIL), and low-grade squamous intraepithelial lesions (LSIL). Samples from 200 healthy women and 130 women with squamous intraepithelial lesions (70 with cervical cancer, 30 with HSIL, and 30 with LSIL) were analyzed. Polymorphism genotyping was performed using PCR and restriction fragment length polymorphism. The -579GT polymorphism was not associated with cervical cancer, HSIL, or LSIL. The CT genotype of 46359CT polymorphism was significantly associated with cervical cancer risk (OR 8.75, CI 1.27-374.1), whereas the TT genotype was associated with a significantly decreased risk of HSIL (OR 0.66, CI 0.01-0.32) and LSIL (OR 0.11, CI 0.026-0.45). Our results suggest that genotyping the 46359CT polymorphism in DNMT3B may help identify women who are genetically susceptible to cervical cancer development. Additional studies with larger sample sizes are necessary to confirm our findings.
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Affiliation(s)
- Daniel Hernández-Sotelo
- Laboratorio de Biomedicina Molecular, Unidad Académica de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero Chilpancingo, Guerrero Avenida Lázaro Cárdenas, C.P. 39090, Ciudad Universitaria, Chilpancingo, Guerrero, México
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Castro-Coronel Y, Del Razo LM, Huerta M, Hernandez-Lopez A, Ortega A, López-Bayghen E. Arsenite Exposure Downregulates EAAT1/GLAST Transporter Expression in Glial Cells. Toxicol Sci 2011; 122:539-50. [DOI: 10.1093/toxsci/kfr126] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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