As dogs live longer, more of them suffer from cancer. Some of the cancers are untreatable with conventional therapies. One such cancer is oral malignant melanoma (OMM) and undifferentiated sarcoma which is a soft tissue cancer. Professor Satoru Konnai of Hokkaido University and his team in Japan have developed an antibody that causes immune responses in dogs that reduces the malignant tumors. They studied dogs with both types of cancer and had success in treating them. Since the untreatable cancers in dogs are similar to those in humans, there is hope that with further studies, this new treatment will help people with untreatable cancers.