ketanserin , cyproheptadine , and spiperone [ serotonin ( 5-ht ) receptor blockers ] inhibited or attenuated the antitumor effects of rtnf-alpha , but the other types of receptor blockers tested ( histamine h1 and h2 , adrenaline alpha and beta , dopamine , and acetylcholine receptor blockers ) did not .
C0086418
rtnf-alpha
C0919509
h2