%0 Journal Article %T IR-780-loaded polymeric micelles enhance the efficacy of photothermal therapy in treating breast cancer lymphatic metastasis in mice %A Bin He %A Hai-yan Hu %A Hong Wang %A Kao-xiang Sun %A Tao Tan %A Ya-ping Li %J Archive of "Acta Pharmacologica Sinica". %D 2018 %R 10.1038/aps.2017.109 %X Cancer metastasis is responsible for over 90% of breast cancer-related deaths, and inhibiting lymph node metastasis is an option to treat metastatic disease. Herein, we report the use of IR-780-loaded polymeric micelles (IPMs) for effective photothermal therapy (PTT) of breast cancer lymphatic metastasis. The IPMs were nanometer-sized micelles with a mean diameter of 25.6 nm and had good stability in simulated physiological solutions. Under 808-nm laser irradiation, IPMs exhibited high heat-generating capability in both in vitro and in vivo experiments. After intravenous injection, IPMs specifically accumulated in the tumor and metastatic lymph nodes and penetrated into these tissues. Moreover, a single IPMs treatment plus laser irradiation significantly inhibited primary tumor growth and suppressed lymphatic metastasis by 88.2%. Therefore, IPMs are an encouraging platform for PTT applications in treatment of metastatic breast cancer %K cancer metastasis %K lymphatic metastasis %K IR-780 %K polymeric micelles %K photothermal therapy %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5758660/