by itself , antibody 9.3 had no detectable effect on either il 2 receptor expression or il 2 release , and did not cause t cell proliferation even when monocytes were present and exogenous il 2 was provided , indicating that binding of antibody 9.3 does not provide a primary signal for t cell activation .
C0034819
il 2 receptor
C1155046
t cell proliferation