Genetic Risk Score Modelling for Disease Progression in New-Onset Type 1 Diabetes Patients: Increased Genetic Load of Islet-Expressed and Cytokine-Regulated Candidate Genes Predicts Poorer Glycemic Control
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Genetic Risk Score Modelling for Disease Progression in New-Onset Type 1 Diabetes Patients : Increased Genetic Load of Islet-Expressed and Cytokine-Regulated Candidate Genes Predicts Poorer Glycemic Control. / Brorsson, Caroline A; Nielsen, Lotte B; Andersen, Marie-Louise; Kaur, Simranjeet; Bergholdt, Regine; Hansen, Lars; Mortensen, Henrik B.; Pociot, Flemming; Størling, Joachim; Hvidoere Study Group On Childhood Diabetes.
In: Journal of Diabetes Research, Vol. 2016, 9570424, 2016.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Genetic Risk Score Modelling for Disease Progression in New-Onset Type 1 Diabetes Patients
T2 - Increased Genetic Load of Islet-Expressed and Cytokine-Regulated Candidate Genes Predicts Poorer Glycemic Control
AU - Brorsson, Caroline A
AU - Nielsen, Lotte B
AU - Andersen, Marie-Louise
AU - Kaur, Simranjeet
AU - Bergholdt, Regine
AU - Hansen, Lars
AU - Mortensen, Henrik B.
AU - Pociot, Flemming
AU - Størling, Joachim
AU - Hvidoere Study Group On Childhood Diabetes
PY - 2016
Y1 - 2016
N2 - Genome-wide association studies (GWAS) have identified over 40 type 1 diabetes risk loci. The clinical impact of these loci on β-cell function during disease progression is unknown. We aimed at testing whether a genetic risk score could predict glycemic control and residual β-cell function in type 1 diabetes (T1D). As gene expression may represent an intermediate phenotype between genetic variation and disease, we hypothesized that genes within T1D loci which are expressed in islets and transcriptionally regulated by proinflammatory cytokines would be the best predictors of disease progression. Two-thirds of 46 GWAS candidate genes examined were expressed in human islets, and 11 of these significantly changed expression levels following exposure to proinflammatory cytokines (IL-1β + IFNγ + TNFα) for 48 h. Using the GWAS single nucleotide polymorphisms (SNPs) from each locus, we constructed a genetic risk score based on the cumulative number of risk alleles carried in children with newly diagnosed T1D. With each additional risk allele carried, HbA1c levels increased significantly within first year after diagnosis. Network and gene ontology (GO) analyses revealed that several of the 11 candidate genes have overlapping biological functions and interact in a common network. Our results may help predict disease progression in newly diagnosed children with T1D which can be exploited for optimizing treatment.
AB - Genome-wide association studies (GWAS) have identified over 40 type 1 diabetes risk loci. The clinical impact of these loci on β-cell function during disease progression is unknown. We aimed at testing whether a genetic risk score could predict glycemic control and residual β-cell function in type 1 diabetes (T1D). As gene expression may represent an intermediate phenotype between genetic variation and disease, we hypothesized that genes within T1D loci which are expressed in islets and transcriptionally regulated by proinflammatory cytokines would be the best predictors of disease progression. Two-thirds of 46 GWAS candidate genes examined were expressed in human islets, and 11 of these significantly changed expression levels following exposure to proinflammatory cytokines (IL-1β + IFNγ + TNFα) for 48 h. Using the GWAS single nucleotide polymorphisms (SNPs) from each locus, we constructed a genetic risk score based on the cumulative number of risk alleles carried in children with newly diagnosed T1D. With each additional risk allele carried, HbA1c levels increased significantly within first year after diagnosis. Network and gene ontology (GO) analyses revealed that several of the 11 candidate genes have overlapping biological functions and interact in a common network. Our results may help predict disease progression in newly diagnosed children with T1D which can be exploited for optimizing treatment.
KW - Adolescent
KW - Adult
KW - Alleles
KW - Child
KW - Cohort Studies
KW - Cytokines
KW - Diabetes Mellitus, Type 1
KW - Disease Progression
KW - Female
KW - Gene Expression Profiling
KW - Genetic Load
KW - Genetic Predisposition to Disease
KW - Genome-Wide Association Study
KW - Genotype
KW - Hemoglobin A, Glycosylated
KW - Humans
KW - Hyperglycemia
KW - Insulin-Secreting Cells
KW - Interferon-gamma
KW - Interleukin-1beta
KW - Islets of Langerhans
KW - Male
KW - Middle Aged
KW - Polymorphism, Single Nucleotide
KW - Risk
KW - Tumor Necrosis Factor-alpha
KW - Young Adult
KW - Journal Article
KW - Research Support, N.I.H., Extramural
KW - Research Support, Non-U.S. Gov't
U2 - 10.1155/2016/9570424
DO - 10.1155/2016/9570424
M3 - Journal article
C2 - 26904692
VL - 2016
JO - Journal of Diabetes Research
JF - Journal of Diabetes Research
SN - 2314-6745
M1 - 9570424
ER -
ID: 171582915