PMID- 24648686 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20140320 LR - 20211021 IS - 1013-9087 (Print) IS - 2005-3894 (Electronic) IS - 1013-9087 (Linking) VI - 26 IP - 1 DP - 2014 Feb TI - Combined treatment of murine fibrosarcoma with chemotherapy (Paclitaxel), radiotherapy, and intratumoral injection of dendritic cells. PG - 53-60 LID - 10.5021/ad.2014.26.1.53 [doi] AB - BACKGROUND: New antitumor therapeutic strategies aim to combine different approaches that are able to induce tumor-specific effector and memory T cell responses that might control tumor growth. Dendritic cells (DCs) have the capacity to induce antigen-specific cytotoxic T lymphocytes. We have previously shown that the combined treatment of paclitaxel chemotherapy (Chemo) and injection of DCs led to complete tumor regression. OBJECTIVE: The goal of this study was to evaluate synergistic antitumor effect of a triple combination treatment comprising radiotherapy, paclitaxel Chemo and intratumoral injection of syngeneic bone marrow-derived DCs on murine fibrosarcoma, compared to other single or double combination treatments. METHODS: For the murine fibrosarcoma model, naive C57BL/6 mice were inoculated intradermally with 2x10(3) MCA102 cells in the right upper flank. Mice were assigned to five groups (untreatedcontrol, RT alone, RT+Chemo, RT+DC, and RT+Chemo+DC), with eight mice in each group. In vitro cytotoxicity assays were performed to assess the immune activity. The persistence of tumor-specific immunity was determined by second tumor challenge in mice with complete tumor regression. RESULTS: The triple combination treatment showed a significantly enhanced therapeutic efficacy by decreasing tumor size and inducing complete tumor regression, resulting in a cure of 50% of mice. The results of in vitro cytotoxicity assays and the second tumor challenge experiment strongly indicated the induction of a tumor-specific cytotoxic T lymphocyte response and acquisition of prolonged tumor immunity. CONCLUSION: These findings suggest that the triple combination treatment can be a promising strategy for the treatment of murine fibrosarcoma. FAU - Byun, Ji-Won AU - Byun JW AD - Department of Dermatology, Inha University School of Medicine, Incheon, Korea. FAU - Lee, Hyeon-Sook AU - Lee HS AD - Department of Dermatology, Inha University School of Medicine, Incheon, Korea. FAU - Song, Sun-Uk AU - Song SU AD - Clinical Research Center, Inha University School of Medicine, Incheon, Korea. FAU - Lee, Si-Won AU - Lee SW AD - Saybeauty Clinic, Incheon, Korea. FAU - Kim, Soon-Ki AU - Kim SK AD - Clinical Research Center, Inha University School of Medicine, Incheon, Korea. FAU - Kim, Woo-Chul AU - Kim WC AD - Department of Radiation Oncology, Inha University School of Medicine, Incheon, Korea. FAU - Lee, Moon-Hee AU - Lee MH AD - Department of Hemato-Oncology, Inha University School of Medicine, Incheon, Korea. FAU - Choi, Gwang-Seong AU - Choi GS AD - Department of Dermatology, Inha University School of Medicine, Incheon, Korea. LA - eng PT - Journal Article DEP - 20140217 PL - Korea (South) TA - Ann Dermatol JT - Annals of dermatology JID - 8916577 PMC - PMC3956795 OTO - NOTNLM OT - Combined modality therapy OT - Dendritic cells OT - Fibrosarcoma OT - Paclitaxel OT - Radiotherapy EDAT- 2014/03/22 06:00 MHDA- 2014/03/22 06:01 PMCR- 2014/02/01 CRDT- 2014/03/21 06:00 PHST- 2012/09/17 00:00 [received] PHST- 2012/12/12 00:00 [revised] PHST- 2013/01/05 00:00 [accepted] PHST- 2014/03/21 06:00 [entrez] PHST- 2014/03/22 06:00 [pubmed] PHST- 2014/03/22 06:01 [medline] PHST- 2014/02/01 00:00 [pmc-release] AID - 10.5021/ad.2014.26.1.53 [doi] PST - ppublish SO - Ann Dermatol. 2014 Feb;26(1):53-60. doi: 10.5021/ad.2014.26.1.53. Epub 2014 Feb 17.