Expression of thymidine phosphorylase by macrophages in colorectal cancer tissues

Table 1 dThdPase levels in 6 colorectal cancers cell lines and macrophage-like cell lines

	dThdPase level* (unit/mg)
Colorectal cancer cells
LS174T	0.5
Clone A	<0.4a
Colo 320	<1.1a
CX-1	<0.3a
Lovo	8.9
MIP101	<0.2a
Macrophage-like cells
THP-1	18.2
U937	19.3

^aFigures indicate levels of detection limit.