This series on “Targeted Therapy in Gastrointestinal Cancers” is edited by Dr. Niranjan Awasthi from Department of Surgery, Indiana University School of Medicine, South Bend, IN, USA; and Dr. Changhua Zhang, from Center for Gastrointestinal Disease, the Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China.

This series is designed with an aim to discuss targeted therapy in gastrointestinal cancers. By discussing various diseases such as esophageal cancer and pancreatic cancer, we try to access mainly the different treatment efficacies and the side effects, and the differences of ethnicity in the means of cure. This series basically presents the recent literature on this theme for an in- depth analysis that can guide clinical practice by our readers and also identify future research directions.