PMID- 25753156 OWN - NLM STAT- MEDLINE DCOM- 20150824 LR - 20220310 IS - 1365-2249 (Electronic) IS - 0009-9104 (Print) IS - 0009-9104 (Linking) VI - 181 IP - 1 DP - 2015 Jul TI - The siRNA cocktail targeting interleukin 10 receptor and transforming growth factor-beta receptor on dendritic cells potentiates tumour antigen-specific CD8(+) T cell immunity. PG - 164-78 LID - 10.1111/cei.12620 [doi] AB - Dendritic cells (DCs) are promising therapeutic agents in the field of cancer immunotherapy due to their intrinsic immune-priming capacity. The potency of DCs, however, is readily attenuated immediately after their administration in patients as tumours and various immune cells, including DCs, produce various immunosuppressive factors such as interleukin (IL)-10 and transforming growth factor (TGF)-beta that hamper the function of DCs. In this study, we used small interfering RNA (siRNA) to silence the expression of endogenous molecules in DCs, which can sense immunosuppressive factors. Among the siRNAs targeting various immunosuppressive molecules, we observed that DCs transfected with siRNA targeting IL-10 receptor alpha (siIL-10RA) initiated the strongest antigen-specific CD8(+) T cell immune responses. The potency of siIL-10RA was enhanced further by combining it with siRNA targeting TGF-beta receptor (siTGF-betaR), which was the next best option during the screening of this study, or the previously selected immunoadjuvant siRNA targeting phosphatase and tensin homologue deleted on chromosome 10 (PTEN) or Bcl-2-like protein 11 (BIM). In the midst of sorting out the siRNA cocktails, the cocktail of siIL-10RA and siTGF-betaR generated the strongest antigen-specific CD8(+) T cell immunity. Concordantly, the knock-down of both IL-10RA and TGF-betaR in DCs induced the strongest anti-tumour effects in the TC-1 P0 tumour model, a cervical cancer model expressing the human papillomavirus (HPV)-16 E7 antigen, and even in the immune-resistant TC-1 (P3) tumour model that secretes more IL-10 and TGF-beta than the parental tumour cells (TC-1 P0). These results provide the groundwork for future clinical development of the siRNA cocktail-mediated strategy by co-targeting immunosuppressive molecules to enhance the potency of DC-based vaccines. CI - (c) 2015 British Society for Immunology. FAU - Ahn, Y-H AU - Ahn YH AD - Division of Infection and Immunology, Graduate School of Medicine, Korea University. AD - Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, Korea. FAU - Hong, S-O AU - Hong SO AD - Division of Infection and Immunology, Graduate School of Medicine, Korea University. AD - Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, Korea. FAU - Kim, J H AU - Kim JH AD - Division of Infection and Immunology, Graduate School of Medicine, Korea University. AD - Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, Korea. FAU - Noh, K H AU - Noh KH AD - Division of Infection and Immunology, Graduate School of Medicine, Korea University. AD - Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, Korea. AD - Department of Gynecologic Oncology and Reproductive Medicine, University of Texas M. D. Anderson Cancer Center, Houston, TX, USA. FAU - Song, K-H AU - Song KH AD - Division of Infection and Immunology, Graduate School of Medicine, Korea University. AD - Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, Korea. FAU - Lee, Y-H AU - Lee YH AD - Division of Infection and Immunology, Graduate School of Medicine, Korea University. AD - Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, Korea. FAU - Jeon, J-H AU - Jeon JH AD - Department of Physiology. FAU - Kim, D-W AU - Kim DW AD - Department of Internal Medicine, Seoul National University College of Medicine, Korea. FAU - Seo, J H AU - Seo JH AD - Division of Oncology, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea. FAU - Kim, T W AU - Kim TW AD - Division of Infection and Immunology, Graduate School of Medicine, Korea University. AD - Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, Korea. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150517 PL - England TA - Clin Exp Immunol JT - Clinical and experimental immunology JID - 0057202 RN - 0 (Antigens, Neoplasm) RN - 0 (Apoptosis Regulatory Proteins) RN - 0 (BCL2L11 protein, human) RN - 0 (Bcl-2-Like Protein 11) RN - 0 (Bcl2l11 protein, mouse) RN - 0 (Membrane Proteins) RN - 0 (Papillomavirus E7 Proteins) RN - 0 (Proto-Oncogene Proteins) RN - 0 (RNA, Small Interfering) RN - 0 (Receptors, Interleukin-10) RN - 0 (Transforming Growth Factor beta) RN - 0 (oncogene protein E7, Human papillomavirus type 16) RN - EC 3.1.3.67 (PTEN Phosphohydrolase) RN - EC 3.1.3.67 (Pten protein, mouse) SB - IM MH - Animals MH - Antigens, Neoplasm/immunology MH - Apoptosis Regulatory Proteins/genetics MH - Bcl-2-Like Protein 11 MH - CD8-Positive T-Lymphocytes/*immunology MH - Cell Line, Tumor MH - Dendritic Cells/*immunology MH - Female MH - Human papillomavirus 16 MH - Immunotherapy/methods MH - Lymphocyte Activation/immunology MH - Membrane Proteins/genetics MH - Mice MH - Mice, Inbred C57BL MH - PTEN Phosphohydrolase/genetics MH - Papillomavirus E7 Proteins/metabolism MH - Proto-Oncogene Proteins/genetics MH - RNA Interference MH - RNA, Small Interfering/*pharmacology MH - Receptors, Interleukin-10/*genetics MH - Transforming Growth Factor beta/*genetics MH - Uterine Cervical Neoplasms/immunology/therapy/virology PMC - PMC4469167 OTO - NOTNLM OT - IL-10RA OT - TGF-beta OT - dendritic cell OT - immunotherapy OT - siRNA EDAT- 2015/03/11 06:00 MHDA- 2015/08/25 06:00 PMCR- 2016/07/01 CRDT- 2015/03/11 06:00 PHST- 2015/03/02 00:00 [accepted] PHST- 2015/03/11 06:00 [entrez] PHST- 2015/03/11 06:00 [pubmed] PHST- 2015/08/25 06:00 [medline] PHST- 2016/07/01 00:00 [pmc-release] AID - 10.1111/cei.12620 [doi] PST - ppublish SO - Clin Exp Immunol. 2015 Jul;181(1):164-78. doi: 10.1111/cei.12620. Epub 2015 May 17.