1
|
Marques-Rocha JL, Garcia-Lacarte M, Samblas M, Bressan J, Martínez JA, Milagro FI. Regulatory roles of miR-155 and let-7b on the expression of inflammation-related genes in THP-1 cells: effects of fatty acids. J Physiol Biochem 2018; 74:579-589. [PMID: 29790117 DOI: 10.1007/s13105-018-0629-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [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: 11/16/2017] [Accepted: 04/03/2018] [Indexed: 12/21/2022]
Abstract
The main aim of this investigation was to study the regulatory roles of let-7b and miR-155-3p on the expression of inflammation-associated genes in monocytes, macrophages, and lipopolysaccharide (LPS)-activated macrophages (AcM). A second goal was to analyze the potential modulatory roles of different fatty acids, including oleic, palmitic, eicosapentaenoic (EPA), and docosahexaenoic (DHA), on the expression of these miRNAs in the three cell types. This hypothesis was tested in human acute monocytic leukemia cells (THP-1), which were differentiated into macrophages with 2-O-tetradecanoylphorbol-13-acetate (TPA) and further activated with LPS for 24 h. Monocytes, macrophages, and AcM were transfected with a negative control, or mimics for miR-155-3p and miR-let-7b-5p. The expression of both miRNAs and some proinflammatory genes was analyzed by qRT-PCR. Interestingly, let-7b mimic reduced the expression of IL6 and TNF in monocytes, and SERPINE1 expression in LPS-activated macrophages. However, IL6, TNF, and SERPINE1 were upregulated in macrophages by let-7b mimic. IL6 expression was higher in the three types of cells after transfecting with miR-155-3p mimic. Similarly, expression of SERPINE1 was increased by miR-155-3p mimic in monocytes and macrophages. However, TLR4 was downregulated by miR-155-3p in monocytes and macrophages. Regarding the effects of the different fatty acids, oleic acid increased the expression of let-7b in macrophages and AcM and also increased the expression of miR-155 in monocytes when compared with DHA but not when compared with non-treated cells. Overall, these results suggest anti- and proinflammatory roles of let-7b and miR-155-3p in THP-1 cells, respectively, although these outcomes are strongly dependent on the cell type. Noteworthy, oleic acid might exert beneficial anti-inflammatory effects in immune cells (i.e., non-activated and LPS-activated macrophages) by upregulating the expression of let-7b.
Collapse
Affiliation(s)
- J L Marques-Rocha
- Department of Integrated Education of Health, Federal University of Espirito Santo, Vitória, Brazil
| | - M Garcia-Lacarte
- Department of Nutrition, Food Science and Physiology; Centre for Nutrition Research, University of Navarra, c / Irunlarrea 1, 31008, Pamplona, Navarra, Spain
| | - M Samblas
- Department of Nutrition, Food Science and Physiology; Centre for Nutrition Research, University of Navarra, c / Irunlarrea 1, 31008, Pamplona, Navarra, Spain
| | - J Bressan
- Department of Nutrition and Health, Federal University of Viçosa, Viçosa, Brazil
| | - J A Martínez
- Department of Nutrition, Food Science and Physiology; Centre for Nutrition Research, University of Navarra, c / Irunlarrea 1, 31008, Pamplona, Navarra, Spain.,CIBERobn, Fisiopatología de la Obesidad y la Nutrición, Carlos III Health Institute, Madrid, Spain.,IdiSNA, Navarra Institute for Health Research, Pamplona, Spain.,IMDEA Food, Madrid, Spain
| | - F I Milagro
- Department of Nutrition, Food Science and Physiology; Centre for Nutrition Research, University of Navarra, c / Irunlarrea 1, 31008, Pamplona, Navarra, Spain. .,CIBERobn, Fisiopatología de la Obesidad y la Nutrición, Carlos III Health Institute, Madrid, Spain.
| |
Collapse
|
2
|
Santaliestra-Pasías AM, Garcia-Lacarte M, Rico MC, Aguilera CM, Moreno LA. Effect of two bakery products on short-term food intake and gut-hormones in young adults: a pilot study. Int J Food Sci Nutr 2017; 67:562-70. [PMID: 27199158 DOI: 10.1080/09637486.2016.1180348] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The aim of this study is to compare the effect of conventional bread and a whole grain bread on appetite and energy intake, satiety and satiety gut-hormones. A randomized controlled crossover pilot study was carried out in 11 university students (age: 18.7 ± 0.9 years; body mass index: 22.7 ± 2.7 kg/m(2)). Participants consumed two different mid-morning cereal-based snacks, including a conventional or whole grain bread. Two testing days were completed, including satiety questionnaires, blood sampling and consumption of standardized breakfast, mid-morning test-snacks and ad libitum lunch. Several gut-hormones were analysed and satiation was assessed using Visual Analogue Scale scores. The consumption of whole grain bread increased satiety perception, decreased the remained energy intake during the testing day, and decreased the postprandial response of peptide YY, compared with conventional bread (p < 0.005). These data suggest that the consumption of whole grain bread might be a useful strategy to improve satiety.
Collapse
Affiliation(s)
- A M Santaliestra-Pasías
- a GENUD (Growth, Exercise, Nutrition and Development) Research Group, Facultad De Ciencias De La Salud, Instituto Agroalimentario De Aragón (IA2), Instituto De Investigación Sanitaria Aragón (IIS Aragón), Centro De Investigación Biomédica En Red De Fisiopatología De La Obesidad Y Nutrición (CIBERObn) , Universidad De Zaragoza , Zaragoza , Spain
| | - M Garcia-Lacarte
- b Department of Nutrition Food Science and Physiology , Centre for Nutrition Research University of Navarra , Pamplona , Spain
| | - M C Rico
- c Department of Biochemistry and Molecular Biology II , Institute of Nutrition and Food Technology, University of Granada , Granada , Spain
| | - C M Aguilera
- c Department of Biochemistry and Molecular Biology II , Institute of Nutrition and Food Technology, University of Granada , Granada , Spain
| | - L A Moreno
- a GENUD (Growth, Exercise, Nutrition and Development) Research Group, Facultad De Ciencias De La Salud, Instituto Agroalimentario De Aragón (IA2), Instituto De Investigación Sanitaria Aragón (IIS Aragón), Centro De Investigación Biomédica En Red De Fisiopatología De La Obesidad Y Nutrición (CIBERObn) , Universidad De Zaragoza , Zaragoza , Spain
| |
Collapse
|
3
|
Mansego ML, Garcia-Lacarte M, Milagro FI, Marti A, Martinez JA. DNA methylation of miRNA coding sequences putatively associated with childhood obesity. Pediatr Obes 2017; 12:19-27. [PMID: 26780939 DOI: 10.1111/ijpo.12101] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 12/04/2015] [Accepted: 12/09/2015] [Indexed: 01/08/2023]
Abstract
BACKGROUND Epigenetic mechanisms may be involved in obesity onset and its consequences. The aim of the present study was to evaluate whether DNA methylation status in microRNA (miRNA) coding regions is associated with childhood obesity. MATERIAL AND METHODS DNA isolated from white blood cells of 24 children (identification sample: 12 obese and 12 non-obese) from the Grupo Navarro de Obesidad Infantil study was hybridized in a 450 K methylation microarray. Several CpGs whose DNA methylation levels were statistically different between obese and non-obese were validated by MassArray® in 95 children (validation sample) from the same study. RESULTS Microarray analysis identified 16 differentially methylated CpGs between both groups (6 hypermethylated and 10 hypomethylated). DNA methylation levels in miR-1203, miR-412 and miR-216A coding regions significantly correlated with body mass index standard deviation score (BMI-SDS) and explained up to 40% of the variation of BMI-SDS. The network analysis identified 19 well-defined obesity-relevant biological pathways from the KEGG database. MassArray® validation identified three regions located in or near miR-1203, miR-412 and miR-216A coding regions differentially methylated between obese and non-obese children. CONCLUSIONS The current work identified three CpG sites located in coding regions of three miRNAs (miR-1203, miR-412 and miR-216A) that were differentially methylated between obese and non-obese children, suggesting a role of miRNA epigenetic regulation in childhood obesity.
Collapse
Affiliation(s)
- M L Mansego
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,Nutrition Research Center, University of Navarra, Pamplona, Spain.,CIBERobn, Fisiopatología de la Obesidad y la Nutrición, Carlos III Institute of Health, Madrid, Spain
| | - M Garcia-Lacarte
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,Nutrition Research Center, University of Navarra, Pamplona, Spain
| | - F I Milagro
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,Nutrition Research Center, University of Navarra, Pamplona, Spain.,CIBERobn, Fisiopatología de la Obesidad y la Nutrición, Carlos III Institute of Health, Madrid, Spain
| | - A Marti
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,CIBERobn, Fisiopatología de la Obesidad y la Nutrición, Carlos III Institute of Health, Madrid, Spain.,IdiSNA, Navarra's Health Research Institute, Pamplona, Spain
| | - J A Martinez
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,Nutrition Research Center, University of Navarra, Pamplona, Spain.,CIBERobn, Fisiopatología de la Obesidad y la Nutrición, Carlos III Institute of Health, Madrid, Spain.,IdiSNA, Navarra's Health Research Institute, Pamplona, Spain
| | | |
Collapse
|