Rapid Communication
Copyright ©2006 Baishideng Publishing Group Co.
World J Gastroenterol. Aug 7, 2006; 12(29): 4727-4735
Published online Aug 7, 2006. doi: 10.3748/wjg.v12.i29.4727
Figure 4
Figure 4 IL-15 bioactivity in supernatants of cells transfected with pIL-15 expression plasmid. COS cells were transfected with pIL-15 (▲) expression constructs or vector pcDNA3 (×), and the supernatants were collected 72 h after transfection. The supernatants were tested by CTLL-2 bioassay to measure IL-15 bioactivity. IL-2 (5 × 103 U/ mL) was used as a positive control.