hrp0089p1-p054 | Diabetes & Insulin P1 | ESPE2018

CpG Methylation Status Changes within the Protein Tyrosine Phosphatase Non-Receptor Type 22 Gene Promoters in Children and Adolescents of Greek Origin with Type 1 Diabetes

Mouzaki Konstantina , Giza Styliani , Kotanidou Eleni P. , Fragou Aikaterini , Taousani Maria , Eboriadou-Petikopoulou Maria , Tzimagiorgis Georgios , Galli-Tsinopoulou Assimina

Introduction: Protein tyrosine phosphatase non-receptor type 22 (PTPN22) is a well-established genetic locus of type 1 diabetes (T1D). The aim of the present study is to compare the methylation level of PTPN22 between children and adolescents of Greek origin with T1D and healthy controls.Patients and Methods: Twenty T1D participants and 20 age-/gender-matched healthy youngsters were enrolled. DNA was extracted from white blood cells, the...

hrp0089p2-p094 | Diabetes & Insulin P2 | ESPE2018

HLA-G Gene Promoter Methylation Status in Children and Adolescents with Type 1 Diabetes

Mouzaki Konstantina , Kotanidou Eleni P , Fragou Aikaterini , Giza Styliani , Taousani Maria , Serbis Anastasios , Eboriadou-Petikopoulou Maria , Tzimagiorgis Georgios , Galli-Tsinopoulou Assimina

Introduction: HLA-G gene is involved in the control of immune response. It plays a primary role on immune tolerance and may participate in controlling autoimmune responses serving as a potential independent susceptibility marker. HLA-G has been isolated in some secretory granules and on the cell surface of primary islet cells induced to secrete insulin. Subsequently, it could be hypothesized that HLA-G methylation at pancreatic islet could sustain T cell activation and onset o...