"Horizons in Cancer Research" presents original research results on the leading edge of cancer. Topics discussed include gallbladder cancer pathogenesis and molecular targeting strategies for therapeutic options; rectal cancer staging; new DNA intercalating anti-cancer drugs; protection of bone growth using folinic acid during pediatric cancer chemotherapy; pinolenic acid as an anti-cancer agent and enhancement of human cancer cell radiosensitivity by conjugated eicosapentaenoic acid.