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Upregulation of FOXO3 in New-Onset Type 1 Diabetes Mellitus.


ABSTRACT: Forkhead box O (FOXO) transcription factors have been implicated in the development and differentiation of the immune cells. FOXO3 plays a crucial role in physiologic and pathologic immune response. FOXO3, cooperatively with FOXO1, control the development and function of Foxp3+ regulatory T cells (Treg). Since the lack of Treg-mediated control has fundamental impact on type 1 diabetes mellitus (T1DM) development, we investigated FOXO3 expression in patients with T1DM. FOXO3 expression was estimated in peripheral blood mononuclear cells (PBMCs) from newly diagnosed T1DM pediatric patients (n = 28) and age-matched healthy donors (n = 27) by reahavel-time PCR and TaqMan gene expression assays. Expression analysis revealed significant upregulation of FOXO3 in T1DM (P = 0.0005). Stratification of the T1DM group according to the presence of initial diabetic ketoacidosis (DKA) did not indicate differences in FOXO3 expression in patients with DKA compared to a mild T1DM onset (P > 0.05). In conclusion, overexpression of FOXO3 is correlated with the ongoing islet autoimmune destruction and might suggest a potential role for this gene in the pathogenesis of type 1 diabetes mellitus.

SUBMITTER: Zurawek M 

PROVIDER: S-EPMC7441418 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Upregulation of <i>FOXO3</i> in New-Onset Type 1 Diabetes Mellitus.

Zurawek Magdalena M   Fichna Marta M   Fichna Piotr P   Czainska Maria M   Rozwadowska Natalia N  

Journal of immunology research 20200812


Forkhead box O (FOXO) transcription factors have been implicated in the development and differentiation of the immune cells. FOXO3 plays a crucial role in physiologic and pathologic immune response. FOXO3, cooperatively with FOXO1, control the development and function of Foxp3<sup>+</sup> regulatory T cells (T<sub>reg</sub>). Since the lack of T<sub>reg</sub>-mediated control has fundamental impact on type 1 diabetes mellitus (T1DM) development, we investigated <i>FOXO3</i> expression in patient  ...[more]

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