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Pseurotin D Inhibits the Activation of Human Lymphocytes
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SYSNO ASEP 0542080 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Pseurotin D Inhibits the Activation of Human Lymphocytes Author(s) Rubanová, Daniela (BFU-R)
Daďová, Petra (BFU-R) ORCID
Vašíček, Ondřej (BFU-R) ORCID, RID
Kubala, Lukáš (BFU-R) RID, ORCIDNumber of authors 4 Article number 1938 Source Title International Journal of Molecular Sciences. - : MDPI
Roč. 22, č. 4 (2021)Number of pages 14 s. Publication form Online - E Language eng - English Country CH - Switzerland Keywords pseurotin ; lymphocyte ; stat3 ; stat5 ; proliferation Subject RIV CE - Biochemistry OECD category Biochemistry and molecular biology R&D Projects GA17-18858S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support BFU-R - RVO:68081707 UT WOS 000623785200001 EID SCOPUS 85101032195 DOI 10.3390/ijms22041938 Annotation Background: Pseurotins, a family of secondary metabolites of different fungi characterized by an unusual spirocyclic furanone-lactam core, are suggested to have different biological activities including the modulation of immune response. Purpose: Complex characterization of the effects of pseurotin D on human lymphocyte activation in order to understand the potential of pseurotin to modulate immune response in humans. Methods: CD4+ and CD8+ T cells and CD19+ B cells isolated from human blood were activated by various activators simultaneously with pseurotin D treatment. The effects of pseurotin were tested on the basis of changes in cell viability, apoptosis, activation of signal transducers and activators of transcription (STAT) signaling pathways, production of tumor necrosis factor (TNF)-alpha by T cells, expression of activation markers CD69 and CD25 on T cells and Human Leukocyte Antigen-DR isotype (HLA-DR) on B cells, and the differentiation markers CD20, CD27, CD38, and immunoglobulin (Ig) D on B cells. Results: Pseurotin D significantly inhibited the activation of both CD4+ and CD8+ human T cells complemented by the inhibition of TNF-alpha production without significant acute toxic effects. The Pseurotin D-mediated inhibition of T-cell activation was accompanied by the induction of the apoptosis of T cells. This corresponded with the inhibited phosphorylation of STAT3 and STAT5. In human B cells, pseurotin D did not significantly inhibit their activation, however, it affected their differentiation. Conclusions: Our results advance the current mechanistic understanding of the pseurotin-induced inhibition of lymphocytes and suggest pseurotins as new attractive chemotypes for future research in the context of immune-modulatory drugs. Workplace Institute of Biophysics Contact Jana Poláková, polakova@ibp.cz, Tel.: 541 517 244 Year of Publishing 2022 Electronic address https://www.mdpi.com/1422-0067/22/4/1938
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