Changes of regulatory T and B cells in patients with papillary thyroid carcinoma after 131I radioablation: a preliminary study

BioMed Research International
Lei JiangHongcheng Shi

Abstract

Introduction. Lymphocytic infiltration and specific lymphocytes subsets may play important roles in papillary thyroid carcinoma (PTC) progression and prognosis. In this study, we try to understand the influence of (131)I radioablation on the important lymphocytes subtypes of regulatory T and B cells (Tregs and Bregs). Methods. Peripheral blood mononuclear cells from 30 PTC patients before and after (131)I therapy, and 20 healthy donors were collected. The expression of Tregs (CD4(+)CD25(+)CD127(-/low)) and B cell (CD5(+)CD19(+)) and production and secretion of interleukin 10 (IL-10) were analyzed by FACS and ELISA assay, respectively. Results. For Tregs percentage in peripheral blood lymphocytes, there was no difference between pretreatment and control and between posttreatment and control. Compared with pretherapy, increased Tregs infiltration was noted in posttherapy (P < 0.05). Although no difference was between pretreatment and control, compared with these two groups, decreased CD19(+) and CD5(+)CD19(+) B cell percentage in posttreatment was observed (P < 0.05). Among these groups, no significant difference was displayed in intracellular IL-10 production and extracellular IL-10 secretion. Conclusions. (131)I Radioablation i...Continue Reading

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Methods Mentioned

BETA
FACS
flow cytometry
Enzyme-Linked Immunosorbent Assay
ELISA

Software Mentioned

SPSS
Flowjo

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