2008303 MicroRNA expression profiling in hydrox-ycamptothecin-resistant human colon cancer cell line by microarray.TONG Jinlu(童锦禄), et al. Dept Gastroenterol, Renji Hosp, Med Sch, Shanghai Jiaotong Univ, Shanghai Instit Dig Dis, Shanghai 200001. Chin J Dig 2008;28(4):246-249.Objective To explore the role of a novel regulatory molecule-microRNA in the hydroxycamptothecin-resistant human colon cancer cell line SW1116/HCPTin order to provide a new reversal target for multidrug resistance.