140205244164
Objective: Impairment of immune cell signaling molecules is involved in diseases pathogenesis. The evaluation of signal transducer and activator of transcription (STAT) 4 and protein inhibitor of activated STAT (PIAS) 2 as well as immunoregulatory role of the dipeptidyl peptidase-4 inhibitor, sitagliptin were investigated in type 2 diabetes mellitus (T2DM).
Materials and Methods: Peripheral blood mononuclear cells were purified from three study groups including healthy controls, T2DM patients with 6 months of sitagliptin treatment, and T2DM patients without sitagliptin. Expressions of STAT4 and PIAS2 were assessed with real-time polymerase chain reaction (qPCR).
Results: The expression of STAT4 in patients without sitagliptin was higher than the healthy controls (p=0.001). Its expression was down-regulated in the sitagliptin treated patient group compared to those without sitagliptin (p=0.005). PIAS2 expression in patients without sitagliptin was lower than the healthy controls (p=0.009). PIAS2 was elevated in the sitagliptin treated group versus patients without sitagliptin (p=0.003). A negative correlation between STAT4 and PIAS2 was found in individuals without sitagliptin (p=0.01). In patients without sitagliptin, fasting plasma glucose was positively and negatively correlated with STAT4 and PIAS2, respectively (p=0.004 and p=0.001).
Conclusion: Aberrant expression of STAT4 and reduced expression of PIAS2 were found in the T2DM patients. Sitagliptin may regulate the cell signaling pathways by elevating PIAS2 and reducing STAT4.
140205244164
Primary Language | English |
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Subjects | Clinical Sciences (Other) |
Journal Section | Research Article |
Authors | |
Project Number | 140205244164 |
Publication Date | December 28, 2023 |
Submission Date | October 17, 2023 |
Acceptance Date | November 23, 2023 |
Published in Issue | Year 2023 Volume: 13 Issue: 3 |