PMID- 24202958 OWN - NLM STAT- MEDLINE DCOM- 20150127 LR - 20231213 IS - 1573-2584 (Electronic) IS - 0301-1623 (Linking) VI - 46 IP - 5 DP - 2014 May TI - Immunosuppressive effect of renal cell carcinoma on phenotype and function of dendritic cells. PG - 915-20 LID - 10.1007/s11255-013-0595-8 [doi] AB - Dendritic cells (DCs) play an important role in anti-renal cell carcinoma (RCC) immunity. The aim of the study was to investigate effect of mimic RCC microenvironment on phenotype and function of DCs. We isolated conditioned media (CM) from supernatants of culturing RCC cells and adjacent non-RCC cells in patients. CD14+ monocytes were obtained from healthy donors. The monocytes derived DCs were treated by RCC CM and non-RCC CM. Maturation markers CD80, CD83, CD86, and HLA-DR on DCs were analyzed using flow cytometry, while the levels of IL-10, TGF-beta, and IL12p70 in supernatants were examined by ELISA. The DCs migration treated with RCC CM and non-RCC CM was investigated using transwell assay. The DCs treated and allogenic T cells were co-cultured for detecting T-cell proliferation and change of phenotype on the T cells. Our results indicated that RCC CM inhibited the up-regulation of CD80,CD83, CD86, and HLA-DR in response to LPS in treated DCs and increased IL-10 and TGF-beta secretion but reduced IL12p70 production. Moreover, the migration ability of DCs treated with RCC CM was also inhibited, compared to DCs treated with adjacent non-RCC CM. In addition, T-cell proliferation was suppressed in co-culture assay with DCs treated with RCC CM; proportion CD25+Foxp3+ regulatory T cells were induced to increase. This study suggests that RCC CM can inhibit maturation of DCs and impair its function; moreover, DCs treated with RCC CM induce regulatory T cells increase, thus could contribute RCC escape from antitumor immunity. FAU - Teng, Lichen AU - Teng L AD - Department of Urology, Cancer Hospital, Harbin Medical University, No.150 Haping Road, Harbin City, 150086, Heilongjiang Province, China, tenglichen@2008.sina.com. FAU - Chen, Yongsheng AU - Chen Y FAU - Ding, Dexin AU - Ding D FAU - Dai, Hongshuang AU - Dai H FAU - Liu, Guobin AU - Liu G FAU - Li, Changfu AU - Li C LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20131108 PL - Netherlands TA - Int Urol Nephrol JT - International urology and nephrology JID - 0262521 RN - 0 (Antigens, CD) RN - 0 (B7-1 Antigen) RN - 0 (B7-2 Antigen) RN - 0 (Culture Media, Conditioned) RN - 0 (HLA-DR Antigens) RN - 0 (Immunoglobulins) RN - 0 (Membrane Glycoproteins) RN - 0 (Transforming Growth Factor beta) RN - 130068-27-8 (Interleukin-10) SB - IM MH - Antigens, CD/analysis MH - B7-1 Antigen/analysis MH - B7-2 Antigen/analysis MH - Carcinoma, Renal Cell/*immunology MH - Cell Movement MH - Cell Proliferation/drug effects MH - Culture Media, Conditioned/*pharmacology MH - Dendritic Cells/chemistry/*drug effects/*immunology MH - Female MH - HLA-DR Antigens/analysis MH - Humans MH - *Immune Tolerance MH - Immunoglobulins/analysis MH - Interleukin-10/metabolism MH - Kidney Neoplasms/*immunology MH - Male MH - Membrane Glycoproteins/analysis MH - Phenotype MH - T-Lymphocytes, Regulatory/drug effects MH - Transforming Growth Factor beta/metabolism MH - Tumor Cells, Cultured MH - Tumor Microenvironment MH - Up-Regulation/drug effects MH - CD83 Antigen EDAT- 2013/11/10 06:00 MHDA- 2015/01/28 06:00 CRDT- 2013/11/09 06:00 PHST- 2013/08/28 00:00 [received] PHST- 2013/10/22 00:00 [accepted] PHST- 2013/11/09 06:00 [entrez] PHST- 2013/11/10 06:00 [pubmed] PHST- 2015/01/28 06:00 [medline] AID - 10.1007/s11255-013-0595-8 [doi] PST - ppublish SO - Int Urol Nephrol. 2014 May;46(5):915-20. doi: 10.1007/s11255-013-0595-8. Epub 2013 Nov 8.