PMID- 23835793 OWN - NLM STAT- MEDLINE DCOM- 20140612 LR - 20131024 IS - 1791-2431 (Electronic) IS - 1021-335X (Linking) VI - 30 IP - 3 DP - 2013 Sep TI - High CCR6/CCR7 expression and Foxp3+ Treg cell number are positively related to the progression of laryngeal squamous cell carcinoma. PG - 1380-90 LID - 10.3892/or.2013.2603 [doi] AB - Chemokine receptors CCR6 and CCR7 have been reported to play important roles in T cell migration and organ-specific metastasis of various tumors. In the present study, we evaluated the expression and clinical significance of CCR6, CCR7, their ligands and CD4+CD25+Foxp3+ regulatory T cells in laryngeal squamous cell carcinoma (LSCC) and metastatic lymph nodes (LNs). The expression of CCR6, CCR7 and their ligands mRNA (CCL20, CCL19/CCL21) as well as the CCR6 and CCR7 proteins were detected by real-time RT-PCR and immunohistochemistry (IHC), respectively. Flow cytometry was used to investigate the percentage of CD4+CD25+Foxp3+ regulatory T cells (Tregs) in peripheral blood mononuclear cells (PBMCs). Furthermore, a number of cytokines, including interleukin (IL)-2, IL-4, IL-10, IL-12p70, interferon (IFN)-gamma and transforming growth factor (TGF)-beta1 were detected by ELISA. The results showed that CCR6 and CCR7 were expressed in tumors in situ, metastatic LNs and CD4+CD25+Foxp3+ Tregs. It was hypothesized that the expression profile of CCR6, CCR7 and the proliferation of CD4+CD25+Foxp3+ Tregs affected the process of LN metastasis in LSCC patients. Therefore, the increased percentage of the Foxp3+ Tregs and the upregulation of Foxp3 expression on CCR6+ Tregs in LSCC patients may have accounted for the downregulation of antitumor immunity in these patients, which could be valuable for assessment of prognosis in LSCC treatment. FAU - Chen, Bin AU - Chen B AD - Department of Otolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai 200031, P.R. China. FAU - Zhang, Duo AU - Zhang D FAU - Zhou, Jian AU - Zhou J FAU - Li, Qing AU - Li Q FAU - Zhou, Lin AU - Zhou L FAU - Li, Shi-Min AU - Li SM FAU - Zhu, Li AU - Zhu L FAU - Chou, Kuang-Yen AU - Chou KY FAU - Zhou, Liang AU - Zhou L FAU - Tao, Lei AU - Tao L FAU - Lu, Li-Ming AU - Lu LM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130708 PL - Greece TA - Oncol Rep JT - Oncology reports JID - 9422756 RN - 0 (CCR6 protein, human) RN - 0 (CCR7 protein, human) RN - 0 (Cytokines) RN - 0 (FOXP3 protein, human) RN - 0 (Forkhead Transcription Factors) RN - 0 (RNA, Messenger) RN - 0 (Receptors, CCR6) RN - 0 (Receptors, CCR7) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Carcinoma, Squamous Cell/*immunology/metabolism/pathology MH - Cytokines/genetics/metabolism MH - Disease Progression MH - Enzyme-Linked Immunosorbent Assay MH - Female MH - Flow Cytometry MH - Follow-Up Studies MH - Forkhead Transcription Factors/*metabolism MH - Humans MH - Immunoenzyme Techniques MH - Laryngeal Neoplasms/*immunology/metabolism/pathology MH - Lymphatic Metastasis MH - Male MH - Middle Aged MH - Neoplasm Grading MH - Neoplasm Staging MH - Prognosis MH - RNA, Messenger/genetics MH - Real-Time Polymerase Chain Reaction MH - Receptors, CCR6/*metabolism MH - Receptors, CCR7/*metabolism MH - Reverse Transcriptase Polymerase Chain Reaction MH - Survival Rate MH - T-Lymphocytes, Regulatory/*immunology/metabolism EDAT- 2013/07/10 06:00 MHDA- 2014/06/13 06:00 CRDT- 2013/07/10 06:00 PHST- 2013/03/12 00:00 [received] PHST- 2013/05/13 00:00 [accepted] PHST- 2013/07/10 06:00 [entrez] PHST- 2013/07/10 06:00 [pubmed] PHST- 2014/06/13 06:00 [medline] AID - 10.3892/or.2013.2603 [doi] PST - ppublish SO - Oncol Rep. 2013 Sep;30(3):1380-90. doi: 10.3892/or.2013.2603. Epub 2013 Jul 8.