The relationships between inflammation and cancer are known since the original work by Virchow in the 19th century and have been largely confirmed after-wards. An interesting question is what might be the primum movens. Numerous clinical observations have shown that a chronic inflammatory state, as that observed with some infections, toxic agents or dysimmune diseases, may be associated with the development of cancer later on. Besides, cancer is generally accompanied by an inflammatory microenvironment, with numerous cellular and humoral components, which promotes both tumorigenesis and the invasivity of the tumour. This article aims at defining the pathophysiology of this association, with a description of underlying mechanisms and mediators, and at determining possible therapeutic implications.
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