Journal
MICROORGANISMS
Volume 11, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/microorganisms11030601
Keywords
excretory-secretory antigens; proteomics; TGF-beta signaling pathway; Th17 cells differentiation
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Excretory-secretory antigens (ESAs) of Cysticercus cellulosae can directly regulate the proliferation and differentiation of host T regulatory (Treg) cells, thus inhibiting host immune responses. Through proteomics analysis, this study found that C. cellulosae ESAs upregulate the TGF-beta signaling pathway and downregulate Th17 cell differentiation in piglet T cells. The study also discovered that the IL-2/STAT5 signaling pathway affects the downregulation of Th17 cell differentiation. This research provides insights into the molecular mechanism of C. cellulosae-mediated immune evasion.
Excretory-secretory antigens (ESAs) of Cysticercus cellulosae can directly regulate the proliferation and differentiation of host T regulatory (Treg) cells, thus inhibiting host immune responses. However, previous studies have only focused on this phenomenon, and the molecular mechanisms behind the ways in which C. cellulosae ESAs regulate the differentiation of host Treg/Th17 cells have not been reported. We collected CD3(+) T cells stimulated by C. cellulosae ESAs through magnetic bead sorting and used label-free quantification (LFQ) proteomics techniques to analyze the signaling pathways of C. cellulosae ESAs regulating Treg/Th17 cell differentiation. Through gene set enrichment analysis (GSEA), we found that C. cellulosae ESAs could upregulate the TGF-beta signaling pathway and downregulate Th17 cell differentiation in piglet T cells. Interestingly, we also found that the IL-2/STAT5 signaling pathway also affects the downregulation of Th17 cell differentiation. C. cellulosae ESAs activate the TGF-beta signaling pathway and the IL-2/STAT5 signaling pathway in host T cells to further regulate the differentiation of Treg/Th17 cells in order to evade host immune attack. This study lays the foundation for the subsequent verification of these pathways, and further clarifies the molecular mechanism of C. cellulosae-mediated immune evasion.
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