TABLE 2

Displacement of 125I-CCL2, [3H]INCB3344, and [3H]CCR2-RA from U2OS membranes expressing CCR2

Data are presented as mean ± S.E.M. of at least three experiments performed in duplicate.

Compound125I-CCL2 Displacement IC50 ± S.E.M.[3H]INCB3344 Displacement Ki ± S.E.M.[3H]CCR2-RA Displacement Ki ± S.E.M.
nMnM or % binding
CCL20.19 ± 0.0479 ± 2%a77 ± 4%a
INCB33445.4 ± 0.81.2 ± 0.1169 ± 17%b*
BMS2227 ± 45.1 ± 1.3164 ± 16%b*
RS504393132 ± 2562 ± 3157 ± 16%b*
Teijin220 ± 26107 ± 10159 ± 17%b*
JNJ-27141491172 ± 15112 ± 3%b*12 ± 3
CCR2-RA-[R]103 ± 18109 ± 1%b*5.0 ± 0.8
  • a Percentage of radioligand binding in the presence of 100 nM CCL2. 100% was determined in the presence of buffer, and therefore values <100% represent displacement.

  • b Percentage of radioligand binding in presence of 1 μM antagonist. 100% was determined in the presence of buffer, and therefore values >100% represent enhancement.

  • * P < 0.05, Student’s t test.