1
|
Leija-Martínez JJ, Giacoman-Martínez A, Del-Río-Navarro BE, Sanchéz-Muñoz F, Hernández-Diazcouder A, Muñoz-Hernández O, Romero-Nava R, Villafaña S, Marchat LA, Hong E, Huang F. Promoter methylation status of RORC, IL17A, and TNFA in peripheral blood leukocytes in adolescents with obesity-related asthma. Heliyon 2022; 8:e12316. [PMID: 36590520 PMCID: PMC9798174 DOI: 10.1016/j.heliyon.2022.e12316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/07/2022] [Accepted: 12/06/2022] [Indexed: 12/23/2022] Open
Abstract
A higher Th17-immune response characterises obesity and obesity-related asthma phenotype. Nevertheless, obesity-related asthma has a more significant Th17-immune response than obesity alone. Retinoid-related orphan receptor C (RORC) is the essential transcription factor for Th17 polarisation. Previous studies have found that adolescents with obesity-related asthma presented upregulation of RORC, IL17A, and TNFA. However, the mechanisms that cause these higher mRNA expression levels in this asthmatic phenotype are poorly understood. Methylation directly regulates gene expression by adding a methyl group to carbon 5 of dinucleotide CpG cytosine. Thus, we evaluated the relationship between RORC, IL17A, and TNFA methylation status and mRNA expression levels to investigate a possible epigenetic regulation. A total of 102 adolescents (11-18 years) were studied in the following four groups: 1) healthy participants (HP), 2) allergic asthmatic participants (AAP), 3) obese participants without asthma (OP), and 4) non-allergic obesity-related asthma participants (OAP). Real-time qPCR assessed the methylation status and gene expression levels in peripheral blood leukocytes. Remarkably, the OAP and AAP groups have lower promoter methylation patterns of RORC, IL17A, and TNFA than the HP group. Notably, the OAP group presents lower RORC promoter methylation status than the OP group. Interestingly, RORC promoter methylation status was moderately negatively associated with gene expression of RORC (r s = -0.39, p < 0.001) and IL17A (r s = -0.37, p < 0.01), respectively. Similarly, the promoter methylation pattern of IL17A was moderately negatively correlated with IL17A gene expression (r s = -0.3, p < 0.01). There is also a moderate inverse relationship between TNFA promoter methylation status and TNFA gene expression (r s = -0.3, p < 0.01). The present study suggests an association between lower RORC, IL17A, and TNFA gene promoter methylation status with obesity-related asthma and allergic asthma. RORC, IL17A, and TNFA gene promoter methylation patterns are moderately inversely correlated with their respective mRNA expression levels. Therefore, DNA methylation may regulate RORC, IL17A, and TNF gene expression in both asthmatic phenotypes.
Collapse
Affiliation(s)
- José J. Leija-Martínez
- Universidad Nacional Autónoma de México, Programa de Maestría y Doctorado en Ciencias Médicas, Odontológicas y de la Salud, Mexico City, Mexico,Hospital Infantil de Mexico Federico Gómez, Research Laboratory of Pharmacology, Mexico City, Mexico
| | - Abraham Giacoman-Martínez
- Hospital Infantil de Mexico Federico Gómez, Research Laboratory of Pharmacology, Mexico City, Mexico,Department of Pharmacobiology, Centro de Investigacion de Estudio Avanzados del Instituto Politecnico Nacional, Calz. de Los Tenorios 235, Col. Granjas Coapa, Mexico City 14330, Mexico
| | - Blanca E. Del-Río-Navarro
- Universidad Nacional Autónoma de México, Programa de Maestría y Doctorado en Ciencias Médicas, Odontológicas y de la Salud, Mexico City, Mexico,Hospital Infantil de México Federico Gómez, Department of Pediatric Allergy-Clinical Immunology, Mexico City, Mexico
| | - Fausto Sanchéz-Muñoz
- Universidad Nacional Autónoma de México, Programa de Maestría y Doctorado en Ciencias Médicas, Odontológicas y de la Salud, Mexico City, Mexico,Departamento de Inmunología, Instituto Nacional de Cardiología “Ignacio Chávez”, Mexico City, Mexico
| | | | - Onofre Muñoz-Hernández
- Universidad Nacional Autónoma de México, Programa de Maestría y Doctorado en Ciencias Médicas, Odontológicas y de la Salud, Mexico City, Mexico
| | - Rodrigo Romero-Nava
- Hospital Infantil de Mexico Federico Gómez, Research Laboratory of Pharmacology, Mexico City, Mexico,Laboratorio de Señalización Intracelular, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico
| | - Santiago Villafaña
- Laboratorio de Señalización Intracelular, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico
| | - Laurence A. Marchat
- Laboratorio 2 de Biomedicina Molecular, ENMH, Instituto Politécnico Nacional, Mexico
| | - Enrique Hong
- Universidad Nacional Autónoma de México, Programa de Maestría y Doctorado en Ciencias Médicas, Odontológicas y de la Salud, Mexico City, Mexico,Department of Pharmacobiology, Centro de Investigacion de Estudio Avanzados del Instituto Politecnico Nacional, Calz. de Los Tenorios 235, Col. Granjas Coapa, Mexico City 14330, Mexico
| | - Fengyang Huang
- Universidad Nacional Autónoma de México, Programa de Maestría y Doctorado en Ciencias Médicas, Odontológicas y de la Salud, Mexico City, Mexico,Hospital Infantil de Mexico Federico Gómez, Research Laboratory of Pharmacology, Mexico City, Mexico,Corresponding author.
| |
Collapse
|