PD 90780 是神经生长因子 (NGF) 的非肽拮抗剂。PD 90780 与 NGF 相互作用阻止与 p75NTR 结合。PD 90780 抑制 NGF-p75NTR 相互作用，在 PC12 和 PC12nnr5 细胞中的 IC50 值分别为 23.1 和 1.8 μM。

IGF-I is partly responsible for systemic GH activities although it possesses a wide number of own properties (anabolic, antioxidant, anti-inflammatory and cytoprotective actions).IGF-I (24-41) (TFA) is amino acids 24 to 41 fragment of Insulin-like Growth Factor I (IGF-I).

BIRT-377 是一种负变构 LFA-1 调节剂。