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Czogała W, Czogała M, Strojny W, Wątor G, Wołkow P, Wójcik M, Bik Multanowski M, Tomasik P, Wędrychowicz A, Kowalczyk W, Miklusiak K, Łazarczyk A, Hałubiec P, Skoczeń S. Methylation and Expression of FTO and PLAG1 Genes in Childhood Obesity: Insight into Anthropometric Parameters and Glucose-Lipid Metabolism. Nutrients 2021; 13:1683. [PMID: 34063412 PMCID: PMC8155878 DOI: 10.3390/nu13051683] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 04/23/2021] [Accepted: 05/11/2021] [Indexed: 12/18/2022] Open
Abstract
The occurrence of childhood obesity is influenced by both genetic and epigenetic factors. FTO (FTO alpha-ketoglutarate dependent dioxygenase) is a gene of well-established connection with adiposity, while a protooncogene PLAG1 (PLAG1 zinc finger) has been only recently linked to this condition. We performed a cross-sectional study on a cohort of 16 obese (aged 6.6-17.7) and 10 healthy (aged 11.4-16.9) children. The aim was to evaluate the relationship between methylation and expression of the aforementioned genes and the presence of obesity as well as alterations in anthropometric measurements (including waist circumference (WC), body fat (BF_kg) and body fat percent (BF_%)), metabolic parameters (lipid profile, blood glucose and insulin levels, presence of insulin resistance) and blood pressure. Expression and methylation were measured in peripheral blood mononuclear cells using a microarray technique and a method based on restriction enzymes, respectively. Multiple regression models were constructed to adjust for the possible influence of age and sex on the investigated associations. We showed significantly increased expression of the FTO gene in obese children and in patients with documented insulin resistance. Higher FTO expression was also associated with an increase in WC, BF_kg, and BF_% as well as higher fasting concentration of free fatty acids (FFA). FTO methylation correlated positively with WC and BF_kg. Increase in PLAG1 expression was associated with higher BF%. Our results indicate that the FTO gene is likely to play an important role in the development of childhood adiposity together with coexisting impairment of glucose-lipid metabolism.
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Affiliation(s)
- Wojciech Czogała
- Department of Pediatric Oncology and Hematology, University Children’s Hospital of Krakow, 30-663 Krakow, Poland; (W.C.); (M.C.); (W.S.)
| | - Małgorzata Czogała
- Department of Pediatric Oncology and Hematology, University Children’s Hospital of Krakow, 30-663 Krakow, Poland; (W.C.); (M.C.); (W.S.)
- Department of Pediatric Oncology and Hematology, Faculty of Medicine, Jagiellonian University Medical College, 30-663 Krakow, Poland
| | - Wojciech Strojny
- Department of Pediatric Oncology and Hematology, University Children’s Hospital of Krakow, 30-663 Krakow, Poland; (W.C.); (M.C.); (W.S.)
| | - Gracjan Wątor
- Center for Medical Genomics—OMICRON, Jagiellonian University Medical College, 30-663 Krakow, Poland; (G.W.); (P.W.)
| | - Paweł Wołkow
- Center for Medical Genomics—OMICRON, Jagiellonian University Medical College, 30-663 Krakow, Poland; (G.W.); (P.W.)
| | - Małgorzata Wójcik
- Department of Pediatric and Adolescent Endocrinology, Faculty of Medicine, Jagiellonian University Medical College, 30-663 Krakow, Poland;
| | - Mirosław Bik Multanowski
- Department of Medical Genetics, Faculty of Medicine, Jagiellonian University Medical College, 30-663 Krakow, Poland;
| | - Przemysław Tomasik
- Department of Clinical Biochemistry, Faculty of Medicine, Jagiellonian University Medical College, 30-663 Krakow, Poland;
| | - Andrzej Wędrychowicz
- Department of Pediatrics, Gastroenterology and Nutrition, Faculty of Medicine, Jagiellonian University Medical College, 30-663 Krakow, Poland;
| | - Wojciech Kowalczyk
- Student Scientific Group of Pediatric Oncology and Hematology, Jagiellonian University Medical College, 30-663 Krakow, Poland; (W.K.); (K.M.); (A.Ł.); (P.H.)
| | - Karol Miklusiak
- Student Scientific Group of Pediatric Oncology and Hematology, Jagiellonian University Medical College, 30-663 Krakow, Poland; (W.K.); (K.M.); (A.Ł.); (P.H.)
| | - Agnieszka Łazarczyk
- Student Scientific Group of Pediatric Oncology and Hematology, Jagiellonian University Medical College, 30-663 Krakow, Poland; (W.K.); (K.M.); (A.Ł.); (P.H.)
| | - Przemysław Hałubiec
- Student Scientific Group of Pediatric Oncology and Hematology, Jagiellonian University Medical College, 30-663 Krakow, Poland; (W.K.); (K.M.); (A.Ł.); (P.H.)
| | - Szymon Skoczeń
- Department of Pediatric Oncology and Hematology, University Children’s Hospital of Krakow, 30-663 Krakow, Poland; (W.C.); (M.C.); (W.S.)
- Department of Pediatric Oncology and Hematology, Faculty of Medicine, Jagiellonian University Medical College, 30-663 Krakow, Poland
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Xu H, Tsang KS, Chan JCN, Yuan P, Fan R, Kaneto H, Xu G. The combined expression of Pdx1 and MafA with either Ngn3 or NeuroD improves the differentiation efficiency of mouse embryonic stem cells into insulin-producing cells. Cell Transplant 2012; 22:147-58. [PMID: 22776709 DOI: 10.3727/096368912x653057] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The use of pancreatic β-cells differentiated from embryonic stem (ES) cells or induced pluripotent stem (iPS) cells is a promising strategy in cell therapy. Pancreatic β-cell development is regulated by the sequential expression of a molecular network of transcription factors. In this experiment, we adopted a three-step differentiation protocol to differentiate mES (mouse ES) cells into insulin-secreting cells and overexpressed transcription factors by adenoviral vectors at various combinations at different time of differentiation. We found that the coexpression of Pdx1 and MafA with either Ngn3 or NeuroD, especially at the final stage of the three-step differentiation, significantly increased the differentiation efficiency. It also increased the glucose-stimulated insulin and C-peptide secretion in insulin-secreting cells derived from mES cells compared to the control green fluorescent protein (GFP) vector-transduced group. For the first time, we have demonstrated that the coexpression of Pdx1 and MafA during a specific time window of development can act synergistically with either Ngn3 or NeuroD to promote the differentiation of mES cells into insulin-secreting cells.
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Affiliation(s)
- Huiming Xu
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, The Prince of Wales Hospital, Shatin, Hong Kong SAR, China
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