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Rodríguez-Rodero S, Menéndez-Torre E, Fernández-Bayón G, Morales-Sánchez P, Sanz L, Turienzo E, González JJ, Martinez-Faedo C, Suarez-Gutiérrez L, Ares J, Díaz-Naya L, Martin-Nieto A, Fernández-Morera JL, Fraga MF, Delgado-Álvarez E. Altered intragenic DNA methylation of HOOK2 gene in adipose tissue from individuals with obesity and type 2 diabetes. PLoS One 2017; 12:e0189153. [PMID: 29228058 PMCID: PMC5724849 DOI: 10.1371/journal.pone.0189153] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [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: 05/25/2017] [Accepted: 11/20/2017] [Indexed: 12/16/2022] Open
Abstract
Aims/Hypothesis Failure in glucose response to insulin is a common pathology associated with obesity. In this study, we analyzed the genome wide DNA methylation profile of visceral adipose tissue (VAT) samples in a population of individuals with obesity and assessed whether differential methylation profiles are associated with the presence of type 2 diabetes (T2D). Methods More than 485,000 CpG genome sites from VAT samples from women with obesity undergoing gastric bypass (n = 18), and classified as suffering from type 2 diabetes (T2D) or not (no type 2 diabetes, NT2D), were analyzed using DNA methylation arrays. Results We found significant differential methylation between T2D and NT2D samples in 24 CpGs that map with sixteen genes, one of which, HOOK2, demonstrated a significant correlation between differentially hypermethylated regions on the gene body and the presence of type 2 diabetes. This was validated by pyrosequencing in a population of 91 samples from both males and females with obesity. Furthermore, when these results were analyzed by gender, female T2D samples were found hypermethylated at the cg04657146-region and the cg 11738485-region of HOOK2 gene, whilst, interestingly, male samples were found hypomethylated in this latter region. Conclusion The differential methylation profile of the HOOK2 gene in individuals with T2D and obesity might be related to the attendant T2D, but further studies are required to identify the potential role of HOOK2 gene in T2D disease. The finding of gender differences in T2D methylation of HOOK2 also warrants further investigation.
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Affiliation(s)
- Sandra Rodríguez-Rodero
- Endocrinology and Nutrition Department, Hospital Universitario Central de Asturias (HUCA), Asturias, Spain
- Cancer Epigenetics Laboratory, Institute of Oncology of Asturias (IUOPA), HUCA, Universidad de Oviedo, Asturias, Spain
- Endocrinology, Nutrition, Diabetes and Obesity Unit, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Asturias, Spain
| | - Edelmiro Menéndez-Torre
- Endocrinology and Nutrition Department, Hospital Universitario Central de Asturias (HUCA), Asturias, Spain
- Endocrinology, Nutrition, Diabetes and Obesity Unit, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Asturias, Spain
| | - Gustavo Fernández-Bayón
- Cancer Epigenetics Laboratory, Institute of Oncology of Asturias (IUOPA), HUCA, Universidad de Oviedo, Asturias, Spain
- Endocrinology, Nutrition, Diabetes and Obesity Unit, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Asturias, Spain
| | - Paula Morales-Sánchez
- Endocrinology and Nutrition Department, Hospital Universitario Central de Asturias (HUCA), Asturias, Spain
- Cancer Epigenetics Laboratory, Institute of Oncology of Asturias (IUOPA), HUCA, Universidad de Oviedo, Asturias, Spain
- Endocrinology, Nutrition, Diabetes and Obesity Unit, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Asturias, Spain
| | - Lourdes Sanz
- Surgery Department, Hospital Universitario Central de Asturias, Asturias, Spain
| | - Estrella Turienzo
- Surgery Department, Hospital Universitario Central de Asturias, Asturias, Spain
| | - Juan José González
- Surgery Department, Hospital Universitario Central de Asturias, Asturias, Spain
| | - Ceferino Martinez-Faedo
- Endocrinology and Nutrition Department, Hospital Universitario Central de Asturias (HUCA), Asturias, Spain
- Endocrinology, Nutrition, Diabetes and Obesity Unit, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Asturias, Spain
| | - Lorena Suarez-Gutiérrez
- Endocrinology and Nutrition Department, Hospital Universitario Central de Asturias (HUCA), Asturias, Spain
- Endocrinology, Nutrition, Diabetes and Obesity Unit, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Asturias, Spain
| | - Jessica Ares
- Endocrinology and Nutrition Department, Hospital Universitario Central de Asturias (HUCA), Asturias, Spain
- Endocrinology, Nutrition, Diabetes and Obesity Unit, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Asturias, Spain
| | - Lucia Díaz-Naya
- Endocrinology and Nutrition Department, Hospital Universitario Central de Asturias (HUCA), Asturias, Spain
- Endocrinology, Nutrition, Diabetes and Obesity Unit, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Asturias, Spain
| | - Alicia Martin-Nieto
- Endocrinology and Nutrition Department, Hospital Universitario Central de Asturias (HUCA), Asturias, Spain
- Endocrinology, Nutrition, Diabetes and Obesity Unit, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Asturias, Spain
| | - Juan L. Fernández-Morera
- Endocrinology and Nutrition Department, Hospital Universitario Central de Asturias (HUCA), Asturias, Spain
- Endocrinology, Nutrition, Diabetes and Obesity Unit, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Asturias, Spain
| | - Mario F. Fraga
- Endocrinology, Nutrition, Diabetes and Obesity Unit, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Asturias, Spain
- Centro de Investigación en Nanomateriales y Nanotecnología (CINN), El Entrego, Asturias, Spain
| | - Elías Delgado-Álvarez
- Endocrinology and Nutrition Department, Hospital Universitario Central de Asturias (HUCA), Asturias, Spain
- Endocrinology, Nutrition, Diabetes and Obesity Unit, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Asturias, Spain
- Medicine Department, Universidad de Oviedo, Asturias, Spain
- * E-mail: ,
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