Photodynamic therapy (PDT) is a potential treatment regime for a number of conditions. It involves introducing particular light-sensitive chemical species into biological systems, inducing them to localize at the point of interest, and then irradiating them with a light source.
It holds particular promise as a treatment to combat certain cancers, and the latest results from trials using a system developed by Ontario-based Theralase have shown that PDT was able to completely destroy subcutaneous colon cancer tumors in a mouse model. Four weeks after treatment, the mice remained free of cancer.
New cancer therapy appears promising in pre-clinical trials
2010-10-02 Virginia Tech reports on a new cancer therapy that appears promising in pre-clinical trials. The research team, led by professors in chemistry and in biological sciences, along with Theralase Technologies, a manufacturer of medical laser devices, has developed a way to eradicate tumors without the harmful side effects of chemotherapy, radiation or a surgeon's scalpel.