1
|
Ayala-García JC, Bahena-Román M, Díaz-Benítez CE, Bermúdez-Morales VH, Cruz M, Lagunas-Martínez A, Burguete-García AI. Association between Gut Microbiota and Inflammation: Mediation Analysis Using Waist Circumference. J Interferon Cytokine Res 2024. [PMID: 38516906 DOI: 10.1089/jir.2024.0020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2024] Open
Abstract
Chronic low-grade inflammation (CLI) is implicated in the development of multiple metabolic diseases. The gut microbiota (GM) activates different signaling pathways and induces phenotypic changes, offering an exciting opportunity to treat CLI. We evaluated the mediation of waist circumference on the association of GM with serum cytokines. In this cross-sectional study of 331 children, we measured 5 gut bacterial species, namely, Lactobacillus (L.) casei, L. paracasei, L. reuteri, Staphylococcus (S.) aureus, and Akkermansia (A.) muciniphila, as well as anthropometry, serum cytokines, and other covariates. We evaluated adjusted regression models, path analysis, and structural equation modeling to obtain path coefficients (PCs) for direct, indirect (waist circumference-mediated), and total effects. We found that L. paracasei was directly associated with lower interleukin-10 (IL-10) levels (PC = -173.5 pg/mL). We also observed indirect associations between S. aureus with lower adiponectin levels (PC = -0.1 µg/mL and -0.09 µg/mL). Finally, A. muciniphila was indirectly associated with higher adiponectin levels (PC = 0.1 µg/mL). Our findings suggest the importance of considering the GM composition and waist circumference when evaluating inflammatory-related factors, providing a basis for future research to identify potential strategies to intervene in inflammatory processes and prevent metabolic diseases in childhood. [Figure: see text].
Collapse
Affiliation(s)
- Juan Carlos Ayala-García
- Centro de Investigación Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, México
| | - Margarita Bahena-Román
- Centro de Investigación Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, México
| | | | | | - Miguel Cruz
- Unidad de Investigación Médica en Bioquímica, Centro Médico Nacional Siglo XXI, Ciudad de México, México
| | - Alfredo Lagunas-Martínez
- Centro de Investigación Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, México
| | - Ana Isabel Burguete-García
- Centro de Investigación Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, México
| |
Collapse
|
2
|
Ayala-García JC, García-Vera AM, Lagunas-Martínez A, Orbe-Orihuela YC, Castañeda-Márquez AC, Díaz-Benítez CE, Bermúdez-Morales VH, Cruz M, Bahena-Román M, Burguete-García AI. Interaction between Akkermansia muciniphila and Diet Is Associated with Proinflammatory Index in School-Aged Children. Children (Basel) 2023; 10:1799. [PMID: 38002890 PMCID: PMC10670599 DOI: 10.3390/children10111799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023]
Abstract
BACKGROUND Imbalance in the intestinal microbiota can lead to chronic low-grade inflammation. Diet may influence this association. In this study, we aimed to evaluate the interaction between Akkermansia muciniphila (A. muciniphila) and dietary patterns using a proinflammatory index. METHODS We conducted a cross-sectional study with school-aged children. We quantified the relative abundance (RA) of A. muciniphila in feces using a polymerase chain reaction. We collected dietary information through employing a food frequency questionnaire and generated dietary patterns using principal component analysis. We generated a proinflammatory index from serum levels of interleukin-6, interleukin-10, tumor necrosis factor alpha, and adiponectin validated by receptor operating characteristic curves. We evaluated the association between A. muciniphila and the proinflammatory index using logistic regression, including an interaction term with dietary patterns. RESULTS We found that children with a low RA of A. muciniphila and a high intake of simple carbohydrates and saturated fats had increased odds of being high on the proinflammatory index. However, when the consumption of this dietary pattern is low, children with a low RA of A. muciniphila had decreased odds of being high on the proinflammatory index. CONCLUSIONS Our results suggest that the simultaneous presence of A. muciniphila and diet have a more significant impact on the presence of being high on the proinflammatory index compared to both factors separately.
Collapse
Affiliation(s)
- Juan Carlos Ayala-García
- Centro de Investigación Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico; (J.C.A.-G.); (A.L.-M.); (Y.C.O.-O.); (C.E.D.-B.); (V.H.B.-M.); (M.B.-R.)
| | - Alba Mariel García-Vera
- Escuela de Salud Pública de México, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico;
| | - Alfredo Lagunas-Martínez
- Centro de Investigación Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico; (J.C.A.-G.); (A.L.-M.); (Y.C.O.-O.); (C.E.D.-B.); (V.H.B.-M.); (M.B.-R.)
| | - Yaneth Citlalli Orbe-Orihuela
- Centro de Investigación Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico; (J.C.A.-G.); (A.L.-M.); (Y.C.O.-O.); (C.E.D.-B.); (V.H.B.-M.); (M.B.-R.)
| | | | - Cinthya Estefhany Díaz-Benítez
- Centro de Investigación Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico; (J.C.A.-G.); (A.L.-M.); (Y.C.O.-O.); (C.E.D.-B.); (V.H.B.-M.); (M.B.-R.)
| | - Víctor Hugo Bermúdez-Morales
- Centro de Investigación Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico; (J.C.A.-G.); (A.L.-M.); (Y.C.O.-O.); (C.E.D.-B.); (V.H.B.-M.); (M.B.-R.)
| | - Miguel Cruz
- Unidad de Investigación Médica en Bioquímica, Centro Médico Nacional Siglo XXI, Ciudad de México 06720, Mexico;
| | - Margarita Bahena-Román
- Centro de Investigación Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico; (J.C.A.-G.); (A.L.-M.); (Y.C.O.-O.); (C.E.D.-B.); (V.H.B.-M.); (M.B.-R.)
| | - Ana Isabel Burguete-García
- Centro de Investigación Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico; (J.C.A.-G.); (A.L.-M.); (Y.C.O.-O.); (C.E.D.-B.); (V.H.B.-M.); (M.B.-R.)
| |
Collapse
|
3
|
Ramírez-González A, Ávila-López P, Bahena-Román M, Contreras-Ochoa CO, Lagunas-Martínez A, Langley E, Manzo-Merino J, Madrid-Marina V, Torres-Poveda K. Critical Role of the Transcription Factor AKNA in T-Cell Activation: An Integrative Bioinformatics Approach. Int J Mol Sci 2023; 24:ijms24044212. [PMID: 36835622 PMCID: PMC9965657 DOI: 10.3390/ijms24044212] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/13/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
The human akna gene encodes an AT-hook transcription factor, the expression of which is involved in various cellular processes. The goal of this study was to identify potential AKNA binding sites in genes that participate in T-cell activation and validate selected genes. Here we analyzed ChIP-seq and microarray assays to determine AKNA-binding motifs and the cellular process altered by AKNA in T-cell lymphocytes. In addition, we performed a validation analysis by RT-qPCR to assess AKNA's role in promoting IL-2 and CD80 expression. We found five AT-rich motifs that are potential candidates as AKNA response elements. We identified these AT-rich motifs in promoter regions of more than a thousand genes in activated T-cells, and demonstrated that AKNA induces the expression of genes involved in helper T-cell activation, such as IL-2. The genomic enrichment and prediction of AT-rich motif analyses demonstrated that AKNA is a transcription factor that can potentially modulate gene expression by recognizing AT-rich motifs in a plethora of genes that are involved in different molecular pathways and processes. Among the cellular processes activated by AT-rich genes, we found inflammatory pathways potentially regulated by AKNA, suggesting AKNA is acting as a master regulator during T-cell activation.
Collapse
Affiliation(s)
- Abrahan Ramírez-González
- Center for Research on Infectious Diseases, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico
| | - Pedro Ávila-López
- Department of Biochemistry and Molecular Genetics, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Margarita Bahena-Román
- Center for Research on Infectious Diseases, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico
| | - Carla O. Contreras-Ochoa
- Center for Research on Infectious Diseases, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico
| | - Alfredo Lagunas-Martínez
- Center for Research on Infectious Diseases, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico
| | - Elizabeth Langley
- Department of Basic Research, Instituto Nacional de Cancerología, Mexico City 14080, Mexico
| | - Joaquín Manzo-Merino
- Department of Basic Research, Instituto Nacional de Cancerología, Mexico City 14080, Mexico
- Consejo Nacional de Ciencia y Tecnología (CONACyT), Instituto Nacional de Cancerología, Mexico City 03940, Mexico
| | - Vicente Madrid-Marina
- Center for Research on Infectious Diseases, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico
| | - Kirvis Torres-Poveda
- Center for Research on Infectious Diseases, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico
- Consejo Nacional de Ciencia y Tecnología (CONACyT), Instituto Nacional de Salud Pública, Cuernavaca 03940, Mexico
- Correspondence: ; Tel.:+52-777-3293000 (ext. 2204)
| |
Collapse
|
4
|
Saldaña-Rodríguez P, Bahena-Román M, Delgado-Romero K, Madrid-Marina V, Torres-Poveda K. Prevalence and Risk Factors for High-Risk Human Papillomavirus Infection and Cervical Disorders: Baseline Findings From an Human Papillomavirus Cohort Study. Cancer Control 2023; 30:10732748231202925. [PMID: 37751562 PMCID: PMC10524074 DOI: 10.1177/10732748231202925] [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: 04/04/2023] [Revised: 07/23/2023] [Accepted: 08/25/2023] [Indexed: 09/28/2023] Open
Abstract
BACKGROUND A persistent infection by high-risk human papillomavirus (HR-HPV) is a prerequisite for the development of cervical neoplasms; however, most studies have focused on risk factors associated with HPV-16 and HPV-18 only. OBJECTIVES We assessed the association of risk factors with the prevalence of HPV-16, HPV-18, and non-16/18 HR-HPV infection and with the occurrence of cervical lesions in the baseline of a cohort study of HPV persistence in a Mexican population. METHODS Cross-sectional study within the baseline of a 5-year dynamic cohort study of HR-HPV persistence in women with an abnormal cytology study result from 2015 to 2021. HPV DNA was detected using the Anyplex II HPV 28 kit. Data on lifestyle, sociodemographic, and reproductive factors were assessed using bivariate and multivariate analyses to determine the association of risk factors with HR-HPV infection status and histopathologic diagnosis. RESULTS A total of 373 women were included in the study. The overall prevalence of HR-HPV infection was 69.97%. The most prevalent HR-HPV genotypes, including single and multiple infections, were HPV-53 (13.4%), HPV-16 (11.8%), HPV-58 (10.9%), HPV-31 (10.9%), and HPV-66 (10.7%). We found 90 multiple HR-HPV infection patterns, all of them with α-6 and -9 species. Significant associations of multiple HPV-16 and non-16/18 HR-HPV infections were found with marital status, number of lifetime sexual partners, and smoking history. The most prevalent genotype in CIN1 and CIN2 patients was HPV-16. No association was found between biological plausibility risk factors and cervical lesions. CONCLUSIONS The risk factors for non-16/18 HR-HPV multiple infections are no different than those linked to HPV-16 multiple infections.
Collapse
Affiliation(s)
- Paula Saldaña-Rodríguez
- Center for Research on Infectious Diseases, Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - Margarita Bahena-Román
- Center for Research on Infectious Diseases, Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - Karina Delgado-Romero
- Centro de Atención para la Salud de la Mujer (CAPASAM) (Center for Women's Health), Health Services of the State of Morelos, Cuernavaca, Mexico
| | - Vicente Madrid-Marina
- Center for Research on Infectious Diseases, Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - Kirvis Torres-Poveda
- Center for Research on Infectious Diseases, Instituto Nacional de Salud Pública, Cuernavaca, Mexico
- Consejo Nacional de Humanidades Ciencias y Tecnologías (CONAHCYT), Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| |
Collapse
|
5
|
Ayala-García JC, Lagunas-Martínez A, Díaz-Benítez CE, Orbe-Orihuela YC, Castañeda-Márquez AC, Ortiz-Panozo E, Bermúdez-Morales VH, Bahena-Román M, Cruz M, Burguete-García AI. High Relative Abundance of Staphylococcus aureus and Serum Cytokines Are Associated with Cardiometabolic Abnormalities in Children. Metab Syndr Relat Disord 2022; 20:303-311. [PMID: 35325575 DOI: 10.1089/met.2021.0084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Background: The alteration in the composition of the gut microbiota has been associated with an increased risk of developing cardiovascular and metabolic diseases. The present study evaluated the association between the relative abundance (RA) of intestinal Staphylococcus aureus and the inflammatory response with cardiometabolic alterations in children. Methods: This cross-sectional study included 1142 children (age 6-12 years), which were classified by degree of adiposity. Anthropometry, cardiometabolic markers, and RA of intestinal S. aureus were measured. Cytokine concentrations were available in 626 children. Path coefficients (PC) were estimated by path analysis. Results: RA of S. aureus was positively associated with cholesterol PC = 24.98 (95% CI 10.76 to 39.21) and negatively with triglycerides PC = -13.10 (95% CI -22.73 to -3.48). Body mass index (BMI) Z-scores had significant mediation effects on the association between RA of S. aureus with waist circumference PC = 2.87 (95% CI 0.58 to 5.16), triglycerides PC = 6.63 (95% CI 1.29 to 11.98), low-density lipoproteins (LDL) PC = 1.73 (95% CI 0.27 to 3.18), and high-density lipoproteins PC = -1.20 (95% CI -2.19 to -0.22). Interleukin 6 (IL-6) was negatively associated with glucose PC = -3.01 (95% CI -5.85 to -0.17) and LDL PC = -8.65 (95% CI -16.54 to -0.77), and interleukin 10 (IL-10) was positively associated with glucose PC = 3.37 (95% CI 0.47 to 6.26). Conclusions: It is suggested that the RA of S. aureus, IL-6, and IL-10 are associated with cardiometabolic alterations in children, where BMI Z-scores have an important mediating effect for the development of these.
Collapse
Affiliation(s)
- Juan Carlos Ayala-García
- Centro de Investigación Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, México
| | - Alfredo Lagunas-Martínez
- Centro de Investigación Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, México
| | | | | | | | - Eduardo Ortiz-Panozo
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, México
| | | | - Margarita Bahena-Román
- Centro de Investigación Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, México
| | - Miguel Cruz
- Unidad de Investigación Médica en Bioquímica, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, México
| | - Ana Isabel Burguete-García
- Centro de Investigación Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, México
| |
Collapse
|
6
|
Contreras-Ochoa CO, Bahena-Román M, López-Díaz LY, Lagunas-Martínez A, Mojica-Cardoso C, Manzo-Merino J, Torres-Poveda K, Madrid-Marina V. Fas and Fas ligand are highly expressed in lymphocytes from cervical intraepithelial neoplasia and cervical cancer patients: A possible role for immune escaping. Iran J Basic Med Sci 2022; 25:383-389. [PMID: 35656191 PMCID: PMC9148406 DOI: 10.22038/ijbms.2022.61808.13678] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 02/13/2022] [Indexed: 11/18/2022]
Abstract
Objectives Infection with high-risk human papillomavirus is required to develop cervical cancer. Some viruses modulate the Fas/FasL signaling to evade the immune response; the role of these molecules in cervical cancer is not clear. In this study, we measured the expression levels of Fas and FasL mRNA, soluble proteins, and cell surface proteins in peripheral blood mononuclear cells from patients with low- and high-grade squamous intraepithelial lesions and cervical cancer in relation to healthy women, to gain new insights into the role of Fas/FasL in cervical cancer development. Materials and Methods Fas/FasL mRNA expression was measured in cervical tissues and peripheral blood mononuclear cells from patients and healthy subjects; serum soluble proteins Fas/FasL were measured by ELISA, and cell-surface protein expression was detected by flow cytometry. Results Varying expression levels were found for both molecules. Cervical Fas and FasL mRNA expression was decreased in low- and high-grade lesions, but it was increased in cervical cancer cases. While, systemic Fas mRNA expression increased as malignity progressed; systemic FasL mRNA expression was increased in low- and high-grade lesions, but it was decreased in cancer patients. Soluble FasL levels decreased as lesions progressed, while soluble Fas levels increased. Finally, overexpression of Fas/FasL on the surface of peripheral blood mononuclear cells was found in patients with low-grade lesion with respect to healthy donors. Conclusion Fas and FasL act as negative modulators of the immune response, probably by removing specific cytotoxic T lymphocytes against papillomavirus -infected cells and tumor cells.
Collapse
Affiliation(s)
- Carla O. Contreras-Ochoa
- Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Av. Universidad 655, Col. Santa María Ahuacatitlán, Cuernavaca, Mor., México
- These authors contributed equally to this work
| | - Margarita Bahena-Román
- Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Av. Universidad 655, Col. Santa María Ahuacatitlán, Cuernavaca, Mor., México
- These authors contributed equally to this work
| | - Luz Yvette López-Díaz
- Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Av. Universidad 655, Col. Santa María Ahuacatitlán, Cuernavaca, Mor., México
| | - Alfredo Lagunas-Martínez
- Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Av. Universidad 655, Col. Santa María Ahuacatitlán, Cuernavaca, Mor., México
| | - Carlos Mojica-Cardoso
- Laboratorio de Patología, Hospital del Niño Morelense. Av. de la Salud 1, Col. Benito Juárez, Emiliano Zapata, Morelos, México
| | - Joaquín Manzo-Merino
- Consejo Nacional de Ciencia y Tecnología (CONACyT)-Instituto Nacional de Cancerología, San Fernando 22, Col. Sección XVI, Tlalpan, Ciudad de México, México
| | - Kirvis Torres-Poveda
- Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Av. Universidad 655, Col. Santa María Ahuacatitlán, Cuernavaca, Mor., México
- Consejo Nacional de Ciencia y Tecnología (CONACyT)-Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México
| | - Vicente Madrid-Marina
- Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Av. Universidad 655, Col. Santa María Ahuacatitlán, Cuernavaca, Mor., México
| |
Collapse
|
7
|
Ramírez-González A, Manzo-Merino J, Contreras-Ochoa CO, Bahena-Román M, Aguilar-Villaseñor JM, Lagunas-Martínez A, Rosenstein Y, Madrid Marina V, Torres-Poveda K. Functional Role of AKNA: A Scoping Review. Biomolecules 2021; 11:biom11111709. [PMID: 34827707 PMCID: PMC8615511 DOI: 10.3390/biom11111709] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 11/12/2021] [Accepted: 11/13/2021] [Indexed: 11/16/2022] Open
Abstract
Human akna encodes an AT-hook transcription factor whose expression participates in various cellular processes. We conducted a scoping review on the literature regarding the functional role of AKNA according to the evidence found in human and in vivo and in vitro models, stringently following the “PRISMA-ScR” statement recommendations. Methods: We undertook an independent PubMed literature search using the following search terms, AKNA OR AKNA ADJ gene OR AKNA protein, human OR AKNA ADJ functions. Observational and experimental articles were considered. The selected studies were categorized using a pre-determined data extraction form. A narrative summary of the evidence was produced. Results: AKNA modulates the expression of CD40 and CD40L genes in immune system cells. It is a negative regulator of inflammatory processes as evidenced by knockout mouse models and observational studies for several autoimmune and inflammatory diseases. Furthermore, AKNA contributes to the de-regulation of the immune system in cancer, and it has been proposed as a susceptibility genetic factor and biomarker in CC, GC, and HNSCC. Finally, AKNA regulates neurogenesis by destabilizing the microtubules dynamics. Conclusion: Our results provide evidence for the role of AKNA in various cellular processes, including immune response, inflammation, development, cancer, autoimmunity, and neurogenesis.
Collapse
Affiliation(s)
- Abrahán Ramírez-González
- Center for Research on Infectious Diseases, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico; (A.R.-G.); (C.O.C.-O.); (M.B.-R.); (A.L.-M.); (V.M.M.)
| | - Joaquín Manzo-Merino
- Department of Basic Research, Instituto Nacional de Cancerología, Mexico City 14080, Mexico;
- Consejo Nacional de Ciencia y Tecnología (CONACyT)-Instituto Nacional de Cancerología, Mexico City 03940, Mexico
| | - Carla Olbia Contreras-Ochoa
- Center for Research on Infectious Diseases, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico; (A.R.-G.); (C.O.C.-O.); (M.B.-R.); (A.L.-M.); (V.M.M.)
| | - Margarita Bahena-Román
- Center for Research on Infectious Diseases, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico; (A.R.-G.); (C.O.C.-O.); (M.B.-R.); (A.L.-M.); (V.M.M.)
| | - José Manasés Aguilar-Villaseñor
- Centro Nacional para la Salud de la Infancia y la Adolescencia (CeNSIA)-Secretaría de Salud Federal, Mexico City 01480, Mexico;
| | - Alfredo Lagunas-Martínez
- Center for Research on Infectious Diseases, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico; (A.R.-G.); (C.O.C.-O.); (M.B.-R.); (A.L.-M.); (V.M.M.)
| | - Yvonne Rosenstein
- Departamento de Medicina Molecular y Bioprocesos, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Mexico City 62210, Mexico;
| | - Vicente Madrid Marina
- Center for Research on Infectious Diseases, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico; (A.R.-G.); (C.O.C.-O.); (M.B.-R.); (A.L.-M.); (V.M.M.)
| | - Kirvis Torres-Poveda
- Center for Research on Infectious Diseases, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico; (A.R.-G.); (C.O.C.-O.); (M.B.-R.); (A.L.-M.); (V.M.M.)
- CONACyT-Instituto Nacional de Salud Pública, Cuernavaca 03940, Mexico
- Correspondence:
| |
Collapse
|
8
|
Bahena-Román M, Sánchez-Alemán MA, Contreras-Ochoa CO, Lagunas-Martínez A, Olamendi-Portugal M, López-Estrada G, Delgado-Romero K, Guzmán-Olea E, Madrid-Marina V, Torres-Poveda K. Prevalence of active infection by herpes simplex virus type 2 in patients with high-risk human papillomavirus infection: A cross-sectional study. J Med Virol 2020; 92:1246-1252. [PMID: 31925791 DOI: 10.1002/jmv.25668] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 09/25/2019] [Accepted: 01/08/2020] [Indexed: 11/11/2022]
Abstract
The aim is to determine the prevalence of active infection by herpes simplex virus type 2 (HSV-2) among Mexican women with high-risk human papillomavirus (HR-HPV) cervical infection, recruited from public gynecology and colposcopy services. In a cross-sectional study, HSV-2 antibodies, HSV-2 DNA, and HR-HPV DNA were quantified. Significant differences in HSV-2 seroprevalence and HSV-2 active infection rates were found between negative and positive HR-HPV cases. HSV-2 seroprevalence was 28.15% and 16.1% (P = .0001), while HSV-2 active infection rates were 6.83% and 0.62% (P = .001) for positive and negative HR-HPV groups, respectively. The risk of HSV-2 seropositivity was 1.7 times greater for HR-HPV-positive cases (P = .02). Similarly, HR-HPV-positive cases were nine times more likely to have an HSV-2 active infection than HR-HPV-negative cases (P = .03). High HSV-2/h-HPV coinfection rates were observed among women recruited from public gynecology and colposcopy services. The main factors related to an HSV-2 active infection are a history of risky sexual behavior and HR-HPV infection. The prevalence of HSV-2 active infection among positive HR-HPV subjects indicate that these infections constitute an important group of STIs in Mexico.
Collapse
Affiliation(s)
- M Bahena-Román
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP), Cuernavaca, Morelos, Mexico
| | - M A Sánchez-Alemán
- Dirección de Innovación y Vigilancia de Enfermedades Infecciosas. Centro de Investigación sobre Enfermedades Infecciosas, INSP, Cuernavaca, Morelos, Mexico
| | - C O Contreras-Ochoa
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP), Cuernavaca, Morelos, Mexico
| | - A Lagunas-Martínez
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP), Cuernavaca, Morelos, Mexico
| | - M Olamendi-Portugal
- Dirección de Innovación y Vigilancia de Enfermedades Infecciosas. Centro de Investigación sobre Enfermedades Infecciosas, INSP, Cuernavaca, Morelos, Mexico
| | - G López-Estrada
- Centro de Atención para la Salud de la Mujer (CAPASAM) (Center for Women's Health), Health Services of the State of Morelos, Cuernavaca, Mexico
| | - K Delgado-Romero
- Centro de Atención para la Salud de la Mujer (CAPASAM) (Center for Women's Health), Health Services of the State of Morelos, Cuernavaca, Mexico
| | - E Guzmán-Olea
- Consejo Nacional de Ciencia y Tecnología (CONACYT), Área Académica de Gerontología, Instituto de Ciencias de la Salud, Universidad Autónoma del Estado de Hidalgo (UAEH), Pachuca, Mexico
| | - V Madrid-Marina
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP), Cuernavaca, Morelos, Mexico
| | - K Torres-Poveda
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP), Cuernavaca, Morelos, Mexico.,CONACYT-Instituto Nacional de Salud Pública (INSP), Cuernavaca, Morelos, Mexico
| |
Collapse
|
9
|
Manzo-Merino J, Lagunas-Martínez A, Contreras-Ochoa CO, Lizano M, Castro-Muñoz LJ, Calderón-Corona C, Torres-Poveda K, Román-Gonzalez A, Hernández-Pando R, Bahena-Román M, Madrid-Marina V. The Human Papillomavirus (HPV) E6 Oncoprotein Regulates CD40 Expression via the AT-Hook Transcription Factor AKNA. Cancers (Basel) 2018; 10:cancers10120521. [PMID: 30562965 PMCID: PMC6316281 DOI: 10.3390/cancers10120521] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 11/23/2018] [Accepted: 12/13/2018] [Indexed: 12/22/2022] Open
Abstract
Persistent infection with high-risk Human Papillomavirus (HR-HPV) is the main requisite for cervical cancer development. Normally, HPV is limited to the site of infection and regulates a plethora of cellular elements to avoid the immune surveillance by inducing an anti-inflammatory state, allowing the progress through the viral cycle and the carcinogenic process. Recent findings suggest that the AT-hook transcriptional factor AKNA could play a role in the development of cervical cancer. AKNA is strongly related to the expression of co-stimulatory molecules such CD40/CD40L to achieve an anti-tumoral immune response. To date, there is no evidence demonstrating the effect of the HPV E6 oncoprotein on the AT-hook factor AKNA. In this work, minimal expression of AKNA in cervical carcinoma compared to normal tissue was found. We show the ability of E6 from high-risk HPVs 16 and 18 to interact with and down-regulate AKNA as well as its co-stimulatory molecule CD40 in a proteasome dependent manner. We also found that p53 interacts with AKNA and promotes AKNA expression. Our results indicate that the de-regulation of CD40 and AKNA is induced by the HPV E6 oncoprotein, and this event involves the action of p53 suggesting that the axis E6/p53A/AKNA might play an important role in the de-regulation of the immune system during the carcinogenic process induced by HR-HPV.
Collapse
Affiliation(s)
- Joaquin Manzo-Merino
- CONACyT-Instituto Nacional de Cancerología, Mexico City 14080, Mexico.
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City 14080, Mexico.
- Chronic Infections and Cancer Division, Centro de Investigación Sobre Enfermedades Infecciosas (CISEI), Instituto Nacional de Salud Pública, Secretaría de Salud, Avenida Universidad 655, Col. Santa María Ahuacatitlan, Cuernavaca, Morelos 62100, Mexico.
| | - Alfredo Lagunas-Martínez
- Chronic Infections and Cancer Division, Centro de Investigación Sobre Enfermedades Infecciosas (CISEI), Instituto Nacional de Salud Pública, Secretaría de Salud, Avenida Universidad 655, Col. Santa María Ahuacatitlan, Cuernavaca, Morelos 62100, Mexico.
| | - Carla O Contreras-Ochoa
- Chronic Infections and Cancer Division, Centro de Investigación Sobre Enfermedades Infecciosas (CISEI), Instituto Nacional de Salud Pública, Secretaría de Salud, Avenida Universidad 655, Col. Santa María Ahuacatitlan, Cuernavaca, Morelos 62100, Mexico.
| | - Marcela Lizano
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City 14080, Mexico.
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico.
| | - Leonardo J Castro-Muñoz
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City 14080, Mexico.
| | - Crysele Calderón-Corona
- Chronic Infections and Cancer Division, Centro de Investigación Sobre Enfermedades Infecciosas (CISEI), Instituto Nacional de Salud Pública, Secretaría de Salud, Avenida Universidad 655, Col. Santa María Ahuacatitlan, Cuernavaca, Morelos 62100, Mexico.
| | - Kirvis Torres-Poveda
- Chronic Infections and Cancer Division, Centro de Investigación Sobre Enfermedades Infecciosas (CISEI), Instituto Nacional de Salud Pública, Secretaría de Salud, Avenida Universidad 655, Col. Santa María Ahuacatitlan, Cuernavaca, Morelos 62100, Mexico.
- CONACyT-Instituto Nacional de Salud Pública (INSP), Cuernavaca, Morelos 62100, Mexico.
| | - Alicia Román-Gonzalez
- Chronic Infections and Cancer Division, Centro de Investigación Sobre Enfermedades Infecciosas (CISEI), Instituto Nacional de Salud Pública, Secretaría de Salud, Avenida Universidad 655, Col. Santa María Ahuacatitlan, Cuernavaca, Morelos 62100, Mexico.
| | - Rogelio Hernández-Pando
- Section of Experimental Pathology, Department of Pathology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico.
| | - Margarita Bahena-Román
- Chronic Infections and Cancer Division, Centro de Investigación Sobre Enfermedades Infecciosas (CISEI), Instituto Nacional de Salud Pública, Secretaría de Salud, Avenida Universidad 655, Col. Santa María Ahuacatitlan, Cuernavaca, Morelos 62100, Mexico.
| | - Vicente Madrid-Marina
- Chronic Infections and Cancer Division, Centro de Investigación Sobre Enfermedades Infecciosas (CISEI), Instituto Nacional de Salud Pública, Secretaría de Salud, Avenida Universidad 655, Col. Santa María Ahuacatitlan, Cuernavaca, Morelos 62100, Mexico.
| |
Collapse
|
10
|
Orbe-Orihuela YC, Lagunas-Martínez A, Bahena-Román M, Madrid-Marina V, Torres-Poveda K, Flores-Alfaro E, Méndez-Padrón A, Díaz-Benítez CE, Peralta-Zaragoza O, Antúnez-Ortiz D, Cruz M, Burguete-García AI. High relative abundance of firmicutes and increased TNF-α levels correlate with obesity in children. Salud Publica Mex 2018; 60:5-11. [PMID: 29689651 DOI: 10.21149/8133] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [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: 08/18/2016] [Accepted: 02/24/2017] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVE To investigate the correlation among pro- or anti-inflammatory cytokines and the two main gut microbiota phyla in obese children. MATERIALS AND METHODS Anthropometric data were obtained from 890 children under 14 years old to determine the degree of obesity. Serum cytokine concentration was measured by ELISA. Relative abundance of gut microbiota in feces was evaluated by quantitative RealTime PCR assays. RESULTS Anthropometric and biochemical parameters were statistically higher in overweigth/ obese children (OW/O) than in lean (NW), Increased TNF-α levels were found in obese children that also have a high relative abundance of Firmicutes. CONCLUSIONS Obese children have a high relative abundance of Firmicutes that correlates with increased levels of TNF-α. This is the first study that shows a relation between Firmicute abundance and TNF-α serum concentration in obese children.
Collapse
Affiliation(s)
- Yaneth C Orbe-Orihuela
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, Mexico
| | - Alfredo Lagunas-Martínez
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, Mexico
| | - Margarita Bahena-Román
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, Mexico
| | - Vicente Madrid-Marina
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, Mexico
| | - Kirvis Torres-Poveda
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, Mexico
| | - Eugenia Flores-Alfaro
- Unidad Académica de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero. Chilpancingo, Guerrero, Mexico
| | - Araceli Méndez-Padrón
- Unidad de Investigación Médica en Bioquímica, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social. Mexico City, Mexico
| | - Cinthya E Díaz-Benítez
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, Mexico
| | - Oscar Peralta-Zaragoza
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, Mexico
| | - Diana Antúnez-Ortiz
- Unidad de Investigación Médica en Bioquímica, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social. Mexico City, Mexico
| | - Miguel Cruz
- Unidad de Investigación Médica en Bioquímica, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social. Mexico City, Mexico
| | - Ana I Burguete-García
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, Mexico
| |
Collapse
|
11
|
Torres-Poveda K, Bahena-Román M, Delgado-Romero K, Madrid-Marina V. A prospective cohort study to evaluate immunosuppressive cytokines as predictors of viral persistence and progression to pre-malignant lesion in the cervix in women infected with HR-HPV: study protocol. BMC Infect Dis 2018; 18:582. [PMID: 30453958 PMCID: PMC6245844 DOI: 10.1186/s12879-018-3490-1] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 11/01/2018] [Indexed: 01/24/2023] Open
Abstract
Background Cervical cancer (CC) is caused by a persistent infection of high-risk human papillomavirus (HR-HPV). While most HPV infections are transient, persistent HPV infections are a significant health problem in Mexico. With an estimated HPV prevalence of 10% among women in reproductive age, approximately 25% of these women present at least a positive result in triage test, which according to previous studies is expected to be confirmed as positive CIN-2/3. The immune system has a key role in the natural history of HPV infection; alterations in the cellular immune response are responsible for the failure to eliminate HPV. The objective of this project is to assess the prognostic value of detecting immune markers (IL-10, IL-4, TGFβ1, IFNγ, IL-6, and TNFα), the expression of HPV-HR E6/E7 proteins, and the viral load at the cervical level with respect to the persistence or clearance of HR-HPV infection, and the regression or progression of a cervical premalignant lesion. Methods A dynamic cohort study is being conducted in women with colposcopic, cytological, and histopathological results negative for squamous intraepithelial lesion (SIL) in the cervix and a positive HPV test; the subjects will be followed-up for 5 years, period from which 3 years have already elapsed, with yearly studies (colposcopy, cytology, and histopathology diagnosis, along with molecular HPV test, quantification of viral load and of IL-10, IL-4, TGFβ1, INFγ, IL-6, and TNFα levels, along with the expression of the HR-HPV E6/E7 proteins in the cervix as a viral marker. The outcome will be categorized as viral persistence or clearance; and as SIL persistence, progression, or regression. Binomial and/or multinomial regression models adjusted for potential confounders will be used, associating the relative risk of the outcome with the immune and viral markers evaluated. Discussion This research will generate knowledge about immune markers with predictive value for the persistence and clearance of HPV, which will improve the triage of positive HPV women and thus reduce the economic burden for the Mexican health system imposed by the management of high-grade SIL and CC cases, which are still detected in late stages.
Collapse
Affiliation(s)
- K Torres-Poveda
- Chronic Infectious Diseases and Cancer Division, Center for Research on Infectious Diseases, Instituto Nacional de Salud Pública (INSP), Cuernavaca, Morelos, Mexico. .,CONACYT-INSP, Cuernavaca, Morelos, Mexico.
| | - M Bahena-Román
- Chronic Infectious Diseases and Cancer Division, Center for Research on Infectious Diseases, Instituto Nacional de Salud Pública (INSP), Cuernavaca, Morelos, Mexico
| | - K Delgado-Romero
- Centro de Atención para la Salud de la Mujer (CAPASAM) (Center for Women's Health), Health Services of the State of Morelos, Cuernavaca, Mexico
| | - V Madrid-Marina
- Chronic Infectious Diseases and Cancer Division, Center for Research on Infectious Diseases, Instituto Nacional de Salud Pública (INSP), Cuernavaca, Morelos, Mexico
| |
Collapse
|
12
|
Martínez-Campos C, Bahena-Román M, Torres-Poveda K, Burguete-García AI, Madrid-Marina V. TLR9 gene polymorphism -1486T/C (rs187084) is associated with uterine cervical neoplasm in Mexican female population. J Cancer Res Clin Oncol 2017; 143:2437-2445. [PMID: 28819773 DOI: 10.1007/s00432-017-2495-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 08/07/2017] [Indexed: 02/06/2023]
Abstract
PURPOSE The aim of this work was to evaluate the association of single nucleotide polymorphisms in TLR9 (-1486 T/C [rs187084], -1237T/C [rs5743836] and G2848A [rs352140]) with HPV infection, squamous intraepithelial lesions, and uterine cervical neoplasm in a Mexican population. Additionally, the peripheral expression of TLR9 was evaluated to evaluate the differences in the TLR9 expression associated with every genotype in the locus -1486 of the TLR9 gene. The serum concentration of TLR9 was evaluated in a randomly selected subsample. METHODS Genotyping was performed using predesigned 5' endonuc lease assays and the association of the polymorphisms with the diagnosis groups were assessed by performing multinomial regression models. The relative expression of TLR9 in peripheral blood mononuclear cells was evaluated by real-time polymerase chain reaction and the association of the level of TLR9 expression with the diagnosis was evaluated by performing multinomial regression models. The serum concentration of TLR9 was evaluated in a subsample of patients diagnosed with uterine cervical neoplasm by ELISA. RESULTS The results showed that genotype TT in the -1486 locus of TLR9 was significantly associated with HPV infection (OR = 3.25, 95% CI 1.12-9.46), squamous intraepithelial cervical lesion (OR = 3.76, 95% CI 1.36-10.41), and uterine cervical neoplasm (OR = 5.30, 95% CI 1.81-15.55). Moreover, the highest level of TLR9 expression was significantly associated with a greater risk for developing squamous intraepithelial cervical lesion and uterine cervical neoplasm. The serum TLR9 concentration was higher in patients with uterine cervical cancer than in controls. CONCLUSION Our findings indicate that genotype TT in the -1486 locus of the TLR9 gene could comprise a risk genotype for HPV infection, squamous intraepithelial cervical lesion, and uterine cervical neoplasm in Mexican female population. Further studies with larger samples are needed to evaluate if the peripheral expression of TLR9 could be used as a biomarker of uterine cervical neoplasm progression.
Collapse
Affiliation(s)
- Cecilia Martínez-Campos
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | - Margarita Bahena-Román
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | - Kirvis Torres-Poveda
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico.,CONACyT Research Fellow-Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | - Ana I Burguete-García
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico.
| | - Vicente Madrid-Marina
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico.
| |
Collapse
|
13
|
Torres-Poveda K, Burguete-García AI, Bahena-Román M, Méndez-Martínez R, Zurita-Díaz MA, López-Estrada G, Delgado-Romero K, Peralta-Zaragoza O, Bermúdez-Morales VH, Cantú D, García-Carrancá A, Madrid-Marina V. Risk allelic load in Th2 and Th3 cytokines genes as biomarker of susceptibility to HPV-16 positive cervical cancer: a case control study. BMC Cancer 2016; 16:330. [PMID: 27220278 PMCID: PMC4879749 DOI: 10.1186/s12885-016-2364-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [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: 07/17/2015] [Accepted: 05/16/2016] [Indexed: 01/20/2023] Open
Abstract
Background Alterations in the host cellular immune response allow persistent infections with High-Risk Human Papillomavirus (HR-HPV) and development of premalignant cervical lesions and cervical cancer (CC). Variations of immunosuppressive cytokine levels in cervix are associated with the natural history of CC. To assess the potential role of genetic host immunity and cytokines serum levels in the risk of developing CC, we conducted a case–control study paired by age. Methods Peripheral blood samples from patients with CC (n = 200) and hospital controls (n = 200), were used to evaluate nine biallelic SNPs of six cytokine genes of the adaptive immune system by allelic discrimination and cytokines serum levels by ELISA. Results After analyzing the SNP association by multivariate logistic regression adjusted by age, CC history and smoking history, three Th2 cytokines (IL-4, IL-6 and IL-10) and one Th3 (TGFB1) cytokine were significantly associated with CC. Individuals with at least one copy of the following risk alleles: T of SNP (−590C > T IL-4), C of SNP (−573G > C IL-6), A of SNP (−592C > A IL-10), T of SNP (−819C > T IL-10) and T of SNP (−509C > T TGFB1), had an adjusted odds ratio (OR) of 2.08 (95 % CI 1.475–2.934, p = 0.0001), an OR of 1.70 (95 % CI 1.208–2.404, p = 0.002), an OR of 1.87 (95 % CI 1.332–2.630, p = 0.0001), an OR of 1.67 (95 % CI 1.192–2.353, p = 0.003) and an OR of 1.91 (95 % CI 1.354–2.701, p = 0.0001), respectively, for CC. The burden of carrying two or more of these risk alleles was found to have an additive effect on the risk of CC (p trend = 0.0001). Finally, the serum levels of Th2 and Th3 cytokines were higher in CC cases than the controls; whereas IFNG levels, a Th1 cytokine, were higher in controls than CC cases. Conclusion The significant associations of five SNPs with CC indicate that these polymorphisms are potential candidates for predicting the risk of development of CC, representing a risk allelic load for CC and can be used as a biomarker of susceptibility to this disease.
Collapse
Affiliation(s)
- K Torres-Poveda
- Dirección de Infecciones Crónicas y Cáncer. Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP), (Chronic Infectious Diseases and Cancer Division. Center for Research on Infectious Diseases. National Institute of Public Health Mexico), Av. Universidad 655, Santa María Ahuacatitlán, Cuernavaca, C.P.62100, Morelos, Mexico.,CONACyT Research Fellow-Instituto Nacional de Salud Pública (INSP), Cuernavaca, Morelos, Mexico
| | - A I Burguete-García
- Dirección de Infecciones Crónicas y Cáncer. Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP), (Chronic Infectious Diseases and Cancer Division. Center for Research on Infectious Diseases. National Institute of Public Health Mexico), Av. Universidad 655, Santa María Ahuacatitlán, Cuernavaca, C.P.62100, Morelos, Mexico
| | - M Bahena-Román
- Dirección de Infecciones Crónicas y Cáncer. Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP), (Chronic Infectious Diseases and Cancer Division. Center for Research on Infectious Diseases. National Institute of Public Health Mexico), Av. Universidad 655, Santa María Ahuacatitlán, Cuernavaca, C.P.62100, Morelos, Mexico
| | - R Méndez-Martínez
- Division of Basic Research, Instituto Nacional de Cancerología (INCan), SS. Mexico City, Mexico
| | - M A Zurita-Díaz
- Dirección de Infecciones Crónicas y Cáncer. Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP), (Chronic Infectious Diseases and Cancer Division. Center for Research on Infectious Diseases. National Institute of Public Health Mexico), Av. Universidad 655, Santa María Ahuacatitlán, Cuernavaca, C.P.62100, Morelos, Mexico
| | - G López-Estrada
- Private Health Center for Gynecology, Cuernavaca, Morelos, Mexico
| | - K Delgado-Romero
- Centro de Atención para la Salud de la Mujer (CAPASAM), (Center for Women's Health). Health Services of the State of Morelos, Cuernavaca, Mexico
| | - O Peralta-Zaragoza
- Dirección de Infecciones Crónicas y Cáncer. Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP), (Chronic Infectious Diseases and Cancer Division. Center for Research on Infectious Diseases. National Institute of Public Health Mexico), Av. Universidad 655, Santa María Ahuacatitlán, Cuernavaca, C.P.62100, Morelos, Mexico
| | - V H Bermúdez-Morales
- Dirección de Infecciones Crónicas y Cáncer. Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP), (Chronic Infectious Diseases and Cancer Division. Center for Research on Infectious Diseases. National Institute of Public Health Mexico), Av. Universidad 655, Santa María Ahuacatitlán, Cuernavaca, C.P.62100, Morelos, Mexico
| | - D Cantú
- Division of Clinical Research, Instituto Nacional de Cancerología (INCan), SS. Mexico City, Mexico
| | - A García-Carrancá
- Division of Basic Research, Instituto Nacional de Cancerología (INCan), SS. Mexico City, Mexico.,Unit of Biomedical Research in Cancer, Instituto Nacional de Cancerología (INCan), SS and Biomedical Research Institute. Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - V Madrid-Marina
- Dirección de Infecciones Crónicas y Cáncer. Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP), (Chronic Infectious Diseases and Cancer Division. Center for Research on Infectious Diseases. National Institute of Public Health Mexico), Av. Universidad 655, Santa María Ahuacatitlán, Cuernavaca, C.P.62100, Morelos, Mexico.
| |
Collapse
|
14
|
Audirac-Chalifour A, Torres-Poveda K, Bahena-Román M, Téllez-Sosa J, Martínez-Barnetche J, Cortina-Ceballos B, López-Estrada G, Delgado-Romero K, Burguete-García AI, Cantú D, García-Carrancá A, Madrid-Marina V. Cervical Microbiome and Cytokine Profile at Various Stages of Cervical Cancer: A Pilot Study. PLoS One 2016; 11:e0153274. [PMID: 27115350 PMCID: PMC4846060 DOI: 10.1371/journal.pone.0153274] [Citation(s) in RCA: 226] [Impact Index Per Article: 28.3] [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: 12/04/2015] [Accepted: 03/25/2016] [Indexed: 12/27/2022] Open
Abstract
Cervical cancer (CC) is caused by high-risk human papillomavirus persistence due to the immunosuppressive tumor microenvironment mediated by cytokines. Vaginal microbiota determines the presence of certain cytokines locally. We assessed the association between cervical microbiota diversity and the histopathological diagnosis of each stage of CC, and we evaluated mRNA cervical expression levels of IL-4, IL-6, IL-10, TGF-β1, TNF-α and IFN-γ across the histopathological diagnosis and specific bacterial clusters. We determined the cervical microbiota by high throughput sequencing of 16S rDNA amplicons and classified it in community state types (CST). Mean difference analyses between alpha-diversity and histopathological diagnosis were carried out, as well as a β-diversity analysis within the histological diagnosis. Cervical cytokine mRNA expression was analyzed across the CSTs and the histopathological diagnoses. We found a significant difference in microbiota's diversity in NCL-HPV negative women vs those with squamous intraepithelial lesions (SIL) and CC(p = 0.006, p = 0.036).When β-diversity was evaluated, the CC samples showed the highest variation within groups (p<0.0006) and the largest distance compared to NCL-HPV negative ones (p<0.00001). The predominant bacteria in women with normal cytology were L. crispatus and L. iners, whereas for SIL, it was Sneathia spp. and for CC, Fusobacterium spp. We found higher median cervical levels of IL-4 and TGF-β1 mRNA in the CST dominated by Fusobacterium spp. These results suggest that the cervical microbiota may be implicated in cervical cancer pathology. Further cohort studies are needed to validate these findings.
Collapse
Affiliation(s)
- Astride Audirac-Chalifour
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP) (Chronic Infectious Diseases and Cancer Division, Center for Research on Infectious Diseases, National Institute of Public Health), Cuernavaca, Morelos, Mexico
| | - Kirvis Torres-Poveda
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP) (Chronic Infectious Diseases and Cancer Division, Center for Research on Infectious Diseases, National Institute of Public Health), Cuernavaca, Morelos, Mexico
| | - Margarita Bahena-Román
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP) (Chronic Infectious Diseases and Cancer Division, Center for Research on Infectious Diseases, National Institute of Public Health), Cuernavaca, Morelos, Mexico
| | - Juan Téllez-Sosa
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP) (Chronic Infectious Diseases and Cancer Division, Center for Research on Infectious Diseases, National Institute of Public Health), Cuernavaca, Morelos, Mexico
| | - Jesús Martínez-Barnetche
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP) (Chronic Infectious Diseases and Cancer Division, Center for Research on Infectious Diseases, National Institute of Public Health), Cuernavaca, Morelos, Mexico
| | - Bernardo Cortina-Ceballos
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP) (Chronic Infectious Diseases and Cancer Division, Center for Research on Infectious Diseases, National Institute of Public Health), Cuernavaca, Morelos, Mexico
| | | | - Karina Delgado-Romero
- Centro de Atención para la Salud de la Mujer (CAPASAM) (Center for Women’s Health), Health Services of the State of Morelos, Cuernavaca, Mexico
| | - Ana I. Burguete-García
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP) (Chronic Infectious Diseases and Cancer Division, Center for Research on Infectious Diseases, National Institute of Public Health), Cuernavaca, Morelos, Mexico
| | - David Cantú
- Division of Clinical Research, Instituto Nacional de Cancerología (INCan), SS, Mexico City, Mexico
| | | | - Vicente Madrid-Marina
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP) (Chronic Infectious Diseases and Cancer Division, Center for Research on Infectious Diseases, National Institute of Public Health), Cuernavaca, Morelos, Mexico
| |
Collapse
|
15
|
Martínez-Nava GA, Torres-Poveda K, Lagunas-Martínez A, Bahena-Román M, Zurita-Díaz MA, Ortíz-Flores E, García-Carrancá A, Madrid-Marina V, Burguete-García AI. Cervical cancer-associated promoter polymorphism affects akna expression levels. Genes Immun 2014; 16:43-53. [PMID: 25373726 DOI: 10.1038/gene.2014.60] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 09/02/2014] [Accepted: 09/24/2014] [Indexed: 12/17/2022]
Abstract
Cervical cancer (CC) is responsible for >260,000 deaths worldwide each year. Efforts are being focused on identifying genetic susceptibility factors, especially in genes related to the immune response. Akna has been proposed to be one of them, but data regarding its functional role in the disease is scarce. Supporting the notion of akna as a CC susceptibility gene, we found two polymorphisms associated with squamous intraepithelial lesion (SIL) and CC; moreover, we identified an association between high akna expression levels and CC and SIL, but its direction differs in each disease stage. To show the potential existence of a cis-acting polymorphism, we assessed akna allelic expression imbalance for the alleles of the -1372C>A polymorphism. We found that, regardless of the study group, the number of transcripts derived from the A allele was significantly higher than those from the C allele. Our results support the hypothesis that akna is a CC susceptibility genetic factor and suggest that akna transcriptional regulation has a role in the disease. We anticipate our study to be a starting point for in vitro evaluation of akna transcriptional regulation and for the identification of transcription factors and cis-elements regulating AKNA function that are involved in carcinogenesis.
Collapse
Affiliation(s)
- G A Martínez-Nava
- 193;rea de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - K Torres-Poveda
- 193;rea de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - A Lagunas-Martínez
- 193;rea de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - M Bahena-Román
- 193;rea de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - M A Zurita-Díaz
- 193;rea de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - E Ortíz-Flores
- 193;rea de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - A García-Carrancá
- Unidad de Investigación Biomédica en Cáncer, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México and Instituto Nacional de Cancerología, Secretaría de Salud, Distrito Federal, Mexico
| | - V Madrid-Marina
- 193;rea de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - A I Burguete-García
- 193;rea de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| |
Collapse
|
16
|
Torres-Poveda K, Burguete-García AI, Cruz M, Martínez-Nava GA, Bahena-Román M, Ortíz-Flores E, Ramírez-González A, López-Estrada G, Delgado-Romero K, Madrid-Marina V. The SNP at -592 of human IL-10 gene is associated with serum IL-10 levels and increased risk for human papillomavirus cervical lesion development. Infect Agent Cancer 2012; 7:32. [PMID: 23148667 PMCID: PMC3552694 DOI: 10.1186/1750-9378-7-32] [Citation(s) in RCA: 36] [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: 08/27/2012] [Accepted: 11/07/2012] [Indexed: 01/11/2023] Open
Abstract
UNLABELLED BACKGROUND Women with Human Papilloma Virus (HPV) persistence are characterized by high levels of IL-10 at cervix. We have determined whether polymorphisms of IL-10 gene promoter might be associated with increased risk of squamous intraepithelial cervical lesions (SICL) and whether exist significative differences of IL-10 mRNA expression at cervix and systemic and serum IL-10 protein between SICL cases and non-Cervical Lesions (NCL). METHODS Peripheral blood samples from SICL (n = 204) and NCL (n = 166) were used to detect IL-10 promoter polymorphisms at loci -592A/C (rs1800872), -819C/T (rs1800871), -1082A/G (rs1800896), -1352A/G (rs1800893), by allelic discrimination and to evaluate serum IL-10 protein. Cervical epithelial scrapings from NCL and biopsies from SICLs were used for HPV-typing and to evaluate IL-10 mRNA expression level. The systemic and local IL-10 mRNA expression levels were measured by real time-PCR. Genotypic and allelic frequencies of the selected polymorphisms were analyzed by logistic regression, adjusting by age and HPV-genotype, to determine the association with SICL. RESULTS No significant differences were found between genotype frequencies at loci -819, -1082, and -1352. Individuals carrying at least one copy of risk allele A of polymorphism -592 had a two-fold increased risk of developing SICL [adjusted odds ratio (OR), 2.02 (95% CI, 1.26-3.25), p = 0.003], compared to NCL. The IL-10 mRNA expression and serum IL-10 protein, were significantly higher in SICL cases (p < 0.01), being higher in patients carrying the risk allele A. CONCLUSIONS The -592 polymorphism is associated with increased risk of SICL and can serve as a marker of genetic susceptibility to SICL among Mexican women. According to IL-10 levels found in SICL, IL-10 can be relevant factor for viral persistence and progression disease.
Collapse
Affiliation(s)
- Kirvis Torres-Poveda
- Dirección de Infecciones Crónicas y Cáncer. Centro de Investigación sobre Enfermedades Infecciosas (CISEI), Instituto Nacional de Salud Pública, Av. Universidad 655, Santa María Ahuacatitlán, Cuernavaca, C.P.62100, Cuernavaca, México
| | - Ana I Burguete-García
- Dirección de Infecciones Crónicas y Cáncer. Centro de Investigación sobre Enfermedades Infecciosas (CISEI), Instituto Nacional de Salud Pública, Av. Universidad 655, Santa María Ahuacatitlán, Cuernavaca, C.P.62100, Cuernavaca, México
| | - Miguel Cruz
- Unidad de Investigación Médica en Bioquímica, Hospital de Especialidades, Centro Médico Siglo XXI, IMSS, Mexico, DF, Mexico
| | - Gabriela A Martínez-Nava
- Dirección de Infecciones Crónicas y Cáncer. Centro de Investigación sobre Enfermedades Infecciosas (CISEI), Instituto Nacional de Salud Pública, Av. Universidad 655, Santa María Ahuacatitlán, Cuernavaca, C.P.62100, Cuernavaca, México
| | - Margarita Bahena-Román
- Dirección de Infecciones Crónicas y Cáncer. Centro de Investigación sobre Enfermedades Infecciosas (CISEI), Instituto Nacional de Salud Pública, Av. Universidad 655, Santa María Ahuacatitlán, Cuernavaca, C.P.62100, Cuernavaca, México
| | - Esmeralda Ortíz-Flores
- Dirección de Infecciones Crónicas y Cáncer. Centro de Investigación sobre Enfermedades Infecciosas (CISEI), Instituto Nacional de Salud Pública, Av. Universidad 655, Santa María Ahuacatitlán, Cuernavaca, C.P.62100, Cuernavaca, México
| | - Abrahan Ramírez-González
- Dirección de Infecciones Crónicas y Cáncer. Centro de Investigación sobre Enfermedades Infecciosas (CISEI), Instituto Nacional de Salud Pública, Av. Universidad 655, Santa María Ahuacatitlán, Cuernavaca, C.P.62100, Cuernavaca, México
| | | | - Karina Delgado-Romero
- Centro de Atención para la Salud de la Mujer (CAPASAM). (Center for Women’s Health), Health Services of the State of Morelos, Cuernavaca, Mexico
| | - Vicente Madrid-Marina
- Dirección de Infecciones Crónicas y Cáncer. Centro de Investigación sobre Enfermedades Infecciosas (CISEI), Instituto Nacional de Salud Pública, Av. Universidad 655, Santa María Ahuacatitlán, Cuernavaca, C.P.62100, Cuernavaca, México
| |
Collapse
|
17
|
Perales G, Burguete-García AI, Dimas J, Bahena-Román M, Bermúdez-Morales VH, Moreno J, Madrid-Marina V. A polymorphism in the AT-hook motif of the transcriptional regulatorAKNAis a risk factor for cervical cancer. Biomarkers 2010; 15:470-4. [DOI: 10.3109/1354750x.2010.485332] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
|
18
|
Bermúdez-Morales VH, Peralta-Zaragoza O, Guzmán-Olea E, García-Carrancá A, Bahena-Román M, Alcocer-González JM, Madrid-Marina V. HPV 16 E2 protein induces apoptosis in human and murine HPV 16 transformed epithelial cells and has antitumoral effects in vivo. Tumour Biol 2009; 30:61-72. [PMID: 19390235 DOI: 10.1159/000214438] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2008] [Accepted: 02/10/2009] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Our aims were to examine the ability of the human papillomaviruse (HPV) 16 E2 protein to induce apoptosis in a murine HPV-transformed cell line, and to evaluate its antitumor properties on HPV-associated tumors in vivo in immunocompetent mice. METHODS HPV-transformed murine BMK-16/myc cells and human SiHa cells were transfected with the HPV 16 E2 gene to examine the effects of the E2 protein on cell growth and on the E6 and E7 oncogenes as well as DNA fragmentation and activation of the extrinsic pathway of apoptosis. Finally, to test the antitumor effect of the E2 protein on an experimental mouse tumor model, we generated a recombinant adenovirus expressing the E2 protein. RESULTS The E2 protein inhibited the growth of SiHa and BMK-16/myc cell lines, and repressed the E6 and E7 oncogenes. Moreover, the E2 protein induced DNA fragmentation and apoptosis through activation of caspases 8 and 3 in BMK-16/myc cells. On the other hand, E2 also showed antitumor effects in vivo. CONCLUSIONS Our findings indicate that E2 exerts pro-apoptotic activity in a murine HPV-transformed cell line as well as an antitumor effect in vivo.
Collapse
Affiliation(s)
- V H Bermúdez-Morales
- Chronic Infection and Cancer, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | | | | | | | | | | | | |
Collapse
|
19
|
Peralta-Zaragoza O, Bahena-Román M, Díaz-Benítez CE, Madrid-Marina V. [Regulation of the cell cycle and the development of cancer: therapeutic prospects]. Salud Publica Mex 1997; 39:451-62. [PMID: 9424727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Several genetic alterations occur during the transformation process from normal to tumor cells, that involve the loss of fidelity of processes as replication, reparation, and segregation of the genomic material. Although normal cells have defense mechanisms against cancer progression, in tumor cells different escape pathways are activated leading to tumor progression. Recent advances have permitted cancer research to focus on the identification of some of its etiological factors. The knowledge of cell cycle reveals a precise mechanism achieved by the coordinated interactions and functions of cyclin-dependent kinases, control checkpoint, and repair pathways. Furthermore, it has been demonstrated that this coordinated function can be abrogated by specific genetic changes. These findings suggest that the molecular mechanisms responsible for cellular transformation may help to identify potential targets to improve cancer therapies.
Collapse
Affiliation(s)
- O Peralta-Zaragoza
- Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, México
| | | | | | | |
Collapse
|