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https://www.selleckchem.com/products/cfi-402257.html (2) Neither α-BTX nor MLA abolished the suppressive effects of GTS-21 on IFN-γ and IL-17 release from OVA-activated DO11.10 spleen cells. (3) GTS-21 significantly suppressed OVA-induced APC-dependent CD4+ T cell differentiation into Tregs. Neither MLA nor mecamylamine, a non-specific nAChR antagonist, abolished the suppressive effect of GTS-21 on Treg differentiation. These results suggest that α7 nAChRs on APCs involved in cytokine synthesis and T cell differentiation are insensitive to the conventional α7 nAChR antagonists, α-BTX and MLA, and that α7 nAChRs on APCs differ pharmacologically from those in neurons. Dendritic cells (DCs) represent one of the most important biological tools for cellular immunotherapy purposes. There are an increasing number of phase I and II studies, where regulatory or tolerogenic DCs (TolDCs) are utilized as negative vaccines, with the aim of inducing tolerogenic outcomes in patients with various autoimmune or chronic-inflammatory diseases, as well as in transplant settings. The induction of tolerogenic properties in DCs can be achieved by altering their activation state toward expression of immunosuppressive elements and/or by achieving resistance to maturation, which leads to insufficient co-stimulatory signal delivery and inability to efficiently present antigens. In the past, one of the most efficient ways to induce DC tolerance has been the application of selected pharmacological agents which actively induce a tolerogenic transcription program or inhibit major pro-inflammatory transcription factors such as Nf-κB. Important examples include immunosuppressants such as different corticosteroids, vitamin D3, rapamycin and others. The quality of TolDCs induced by different approaches is becoming a vital issue and recent evidence suggests substantial heterogeneity between variously-generated TolDCs as evidenced by their transcriptomic profile and function. The possibility of various

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