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Characterization of dendritic cells in differentiated thyroid cancer
Author(s) -
Tsuge Kaori,
Takeda Hiroaki,
Kawada Sumio,
Maeda Kunihiko,
Yamakawa Mitsunori
Publication year - 2005
Publication title -
the journal of pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.964
H-Index - 184
eISSN - 1096-9896
pISSN - 0022-3417
DOI - 10.1002/path.1731
Subject(s) - thyroid carcinoma , chemokine , carcinoma , pathology , cell adhesion molecule , follicular dendritic cells , thyroid cancer , cancer research , receptor , medicine , chemistry , thyroid , immunology , antigen presenting cell , immune system , t cell
In this study, the types and localization pattern of dendritic cells (DCs), the expression of chemokines on carcinoma cells and of the relevant receptors on DCs, and the adhesion molecules expressed on vascular endothelial cells and DCs were examined in thyroid carcinomas. Papillary carcinoma had a higher frequency of CD1a + immature DCs than other thyroid tumours. Macrophage inflammatory protein (MIP)‐3α was expressed strongly on the majority of papillary carcinoma cells and weakly on a minority of follicular carcinoma cells. DCs positive for chemokine receptor‐6 (CCR‐6) were densely accumulated in papillary carcinoma. DC‐SIGN + DCs were accumulated in papillary carcinoma but rarely in follicular carcinoma. A binding assay for DC‐SIGN‐mediated adhesion of isolated DCs revealed significant inhibition of DC adhesion to papillary carcinoma tissues by neutralizing antibodies against intercellular adhesion molecule‐2 or DC‐SIGN. These results clearly indicated marked differences between papillary carcinoma and follicular carcinoma in the accumulation of immature DCs, in MIP‐3α expression on carcinoma cells, and in the frequency of CCR‐6 + DCs and DC‐SIGN + DCs. Copyright © 2005 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.