Evidence of Th2 polarization of the sentinel lymph node (SLN) in melanoma

作者: Travis E Grotz , James W Jakub , Aaron S Mansfield , Rachel Goldenstein , Elizabeth Ann L Enninga

DOI: 10.1080/2162402X.2015.1026504

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摘要: Melanoma has a propensity for lymphatogenous metastasis. Improved understanding of the sentinel lymph node (SLN) immunological environment may improve outcomes. The immune phenotype fresh melanoma SLNs (n = 13) were compared to control nodes using flow cytometry. RNA was isolated from CD4+ T cells SLN and assessed Th1/Th2 gene expression pathways qRT-PCR. In addition, VEGF between primary 6) benign nevi immunohistochemistry. had fewer CD8+ controls (9.2% vs. 19.5%, p 0.0005). within appeared have an exhausted demonstrated by increased PD-1 mRNA (2.2% 0.8%, 0.004) five-fold increase in CTLA-4 expression. also contained number CD14 (22.7% 7.7%, 0.009) CD68 (9.3% 2.7%, 0.001) macrophages, CD20 B (31.1% 20.7%, 0.008), suggesting...

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