BACKGROUND AND OBJECTIVE: Both photodynamic (PDT) and photothermal (PTT) therapy have proven to be effective treatment strategies for cancer, but the approach of combining them into a single treatment modality may offer better treatment efficacy. We compare the treatment efficacy of such combined treatment with the individual treatment. STUDY DESIGN/ MATERIALS AND METHODS: We perform the individual PDT, PTT and combined treatment under selected in vitro condition with our low light dose of 1.44 J/cm(2) and compare their cell viability using crystal fast violet assay. RESULTS: Compared to PDT and PTT alone which can reduce cell viability to 30.9% and 44.0% respectively, the combined treatment under a single irradiation can further reduce the cell viability to 17.5%. CONCLUSION: A combined PDT and PTT treatment appears to be a more effective treatment strategy compared to conventional PDT or emerging PTT treatment. (c) 2008 Wiley-Liss, Inc.
BACKGROUND AND OBJECTIVE: Both photodynamic (PDT) and photothermal (PTT) therapy have proven to be effective treatment strategies for cancer, but the approach of combining them into a single treatment modality may offer better treatment efficacy. We compare the treatment efficacy of such combined treatment with the individual treatment. STUDY DESIGN/ MATERIALS AND METHODS: We perform the individual PDT, PTT and combined treatment under selected in vitro condition with our low light dose of 1.44 J/cm(2) and compare their cell viability using crystal fast violet assay. RESULTS: Compared to PDT and PTT alone which can reduce cell viability to 30.9% and 44.0% respectively, the combined treatment under a single irradiation can further reduce the cell viability to 17.5%. CONCLUSION: A combined PDT and PTT treatment appears to be a more effective treatment strategy compared to conventional PDT or emerging PTT treatment. (c) 2008 Wiley-Liss, Inc.
Authors: L F Freitas; M R Hamblin; F Anzengruber; J R Perussi; A O Ribeiro; V C A Martins; A M G Plepis Journal: J Photochem Photobiol B Date: 2017-05-30 Impact factor: 6.252