RRC ID 61567
著者 Kokuryo D, Aoki I, Yuba E, Kono K, Aoshima S, Kershaw J, Saga T.
タイトル Evaluation of a combination tumor treatment using thermo-triggered liposomal drug delivery and carbon ion irradiation.
ジャーナル Transl Res
Abstract The combination of radiotherapy with chemotherapy is one of the most promising strategies for cancer treatment. Here, a novel combination strategy utilizing carbon ion irradiation as a high-linear energy transfer (LET) radiotherapy and a thermo-triggered nanodevice is proposed, and drug accumulation in the tumor and treatment effects are evaluated using magnetic resonance imaging relaxometry and immunohistology (Ki-67, n = 15). The thermo-triggered liposomal anticancer nanodevice was administered into colon-26 tumor-grafted mice, and drug accumulation and efficacy was compared for 6 groups (n = 32) that received or did not receive the radiotherapy and thermo trigger. In vivo quantitative R1 maps visually demonstrated that the multimodal thermosensitive polymer-modified liposomes (MTPLs) can accumulate in the tumor tissue regardless of whether the region was irradiated by carbon ions or not. The tumor volume after combination treatment with carbon ion irradiation and MTPLs with thermo-triggering was significantly smaller than all the control groups at 8 days after treatment. The proposed strategy of combining high-LET irradiation and the nanodevice provides an effective approach for minimally invasive cancer treatment.
巻・号 185
ページ 24-33
公開日 2017-7-1
DOI 10.1016/j.trsl.2017.04.001
PII S1931-5244(17)30165-2
PMID 28482173
MeSH Animals Antineoplastic Agents / administration & dosage Antineoplastic Agents / therapeutic use* Carbon Cell Line, Tumor Chemoradiotherapy* Colonic Neoplasms / therapy* Doxorubicin / administration & dosage Doxorubicin / therapeutic use* Drug Delivery Systems Female Hot Temperature Liposomes / chemistry* Mice Mice, Inbred BALB C Mice, Nude Neoplasms, Experimental / therapy* Radiotherapy
IF 5.411
リソース情報
ヒト・動物細胞 Colon-26(RCB2657)