P2z receptor ligation promotes 86Rb+ release from macrophages
Stimulus
.
86Rb+ (% Released)a
.
None
10b
40 μM ATP
17.5
100 μM ATP
21
1 mM ATP
81
5 mM ATP
94
200 μM benzoyl benzoic-ATP
46
1 mM benzoyl benzoic-ATP
95
5 mM UTP
21
Stimulus
.
86Rb+ (% Released)a
.
None
10b
40 μM ATP
17.5
100 μM ATP
21
1 mM ATP
81
5 mM ATP
94
200 μM benzoyl benzoic-ATP
46
1 mM benzoyl benzoic-ATP
95
5 mM UTP
21
a
LPS-activated, 86Rb+-loaded macrophages were incubated for 5 min in the presence of the indicated stimulus. At the conclusion of this incubation, cells and media were separated, and the percentage of the radioactive isotope recovered in the medium was determined.
b
The value for the control (none) is a mean of eight individual wells; other values are averages of duplicate wells.