摘要
It is a great honor for me to introduce the third issue of the Journal of Cancer Metastasis and Treatment.This is a special issue focusing on recent advances in research and treatment for gastrointestinal(GI)malignancies.Cancers arising from the GI tract,including esophagus,stomach,colorectum,liver,gallbladder and pancreas,are frequently observed all over the world.According to the global cancer statistics 2012,there were approximately 407,000 newly diagnosed cases with GI cancers and 304,000 deaths among them.[1]They accounted for 29%and 37%of all cancers excluding non-melanoma skin cancer respectively.Recent progress in molecular biological techniques facilitated the understanding of the mechanism of cancer development and progression.This issue contains nine review articles concerning the topics which attract a lot of attention in the field of GI malignancies.