This book provides the latest information on cancer metastasis from the standpoint of inflammation, especially innate immune reactions caused by endogenous mediators but not exogenous pathogens, with ideas on how to understand the complicated mechanisms of metastasis as well as to interpret therapeutic targets. The book includes the topic of the emerging roles of endogenous TLR4 ligands whose functions are shared intriguingly by metastasis and auto-inflammatory diseases such as rheumatoid arthritis. For example, most cancer therapies established so far are effective initially. However,...