target/ERK/1

ERK-IN-2, an ERK2 inhibitor, exhibits an IC50 value of 1.8 nM. At doses greater than 10 μM, it may induce off-target toxicity and or activity [1].

Hederacolchiside A1 (Raddeanoside R13) shows anti-leishmanial activity, it exhibits a strong antiproliferative activity on all stages of development of the parasite by altering membrane integrity and potential. Hederacolchiside A1 shows antiproliferation activities in three cancer cell lines with the IC50 value of 2.4 uM, it exhibits a preferential cytotoxicity on a pigmented melanoma cell line. It suppresses proliferation of tumor cells by inducing apoptosis through modulating PI3K Akt mTOR signaling pathway.

(2Z,3Z)-U0126 is a highly selective inhibitor of both MEK1 and MEK2, a type of MAPK ERK kinase. It was found to functionally antagonize AP-1 transcriptional activity via noncompetitive inhibition of the dual specificity kinase MEK with IC50 of 72 nM for MEK1 and 58 nM for MEK2. U0126 inhibited anchorage-independent growth of Ki-ras-transformed rat fibroblasts by simultaneously blocking both extracellular signal-regulated kinase and mammalian target of rapamycin pathways.