Reduced deaf1 mRNA expression during STZ-induced diabetes mellitus inhibits foxp3+regulatory T-cells differentiations in rat’s pancreatic lymph nodes

Abstract

Abstract: We studied to determine the effect of the levels of Deaf1 mRNA expression on the nature of Foxp3+ Treg cells differentiation during experimental STZ-induced diabetes mellitus (EDM) in rats PLN. To determine the level of Deaf1 mRNA expression was performed RT-PCR in real-time by thermocycler CFX96™ RОal-Time PCR Detection Systems. The Foxp3+-immunopositive lymphocytes were determined using an indirect immunofluorescence technique with using a monoclonal rat antibody. We established that development of EDM was accompanied by decreased the expression levels of the transcriptional regulator Deaf1 4,2‐fold in rats PLN with 3-week EDM and 2,5‐fold in rats with 5-week EDM. Reduced Deaf1 mRNA expression during EDM associated with an decreased of total amount of Treg in the PLN, led to changes of distribution into individual classes of FoxP3+ lymphocytes and FoxP3 concentration in immunopositive cells.