vegfr/pdgfr-in-1

VEGFR/PDGFR-IN-1 (Compound 1) is an inhibitor of VEGFR with an IC50 of 0.4 μM. It can inhibit angiogenesis in HUVEC cells and holds promise for impeding tumor growth and metastasis.

SU11652 is an effective and competitive receptor tyrosine kinase (RTK) inhibitor, including VEGFR, FGFR, PDGFR, and Kit. SU11652 disrupts the function of all forms of mutant Kit and may be used in the study of cancers involving Kit mutations.

Cediranib (AZD2171) (AZD2171) is a highly potent (IC50 < 1 nmol/L) ATP-competitive inhibitor of recombinant KDR tyrosine kinase in vitro, also inhibits Flt1/4 (IC50: 5 nM/≤3 nM), similar activity against PDGFRβ and c-Kit, selective more for VEGFR than PDGFR-α (36-fold), CSF-1R (110-fold), and Flt3 (1000-fold) in HUVEC cells.

Multi-kinase-IN-5 (compound 15c) is a multi-kinase inhibitory agent that demonstrates significant inhibition of a range of protein kinases, including RET (69%), KIT (31%), cMet (62%), VEGFR1 (40%), VEGFR2 (73%), FGFR1 (74%), PDGFR (59%), and BRAF (74%). Its IC50 values are 1.287 μM for FGFR1, 0.117 μM for VEGFR, and 1.185 μM for RET kinases, indicating its potency [1].

Antifibrotic agent 1 is an orally active medication designed to treat idiopathic pulmonary fibrosis (IPF). It effectively mitigates IPF-related processes, including TGF-β-induced epithelial-mesenchymal transition (EMT) and fibroblast-to-myofibroblast transition (FMT), as well as profibrotic M2 polarization. Antifibrotic agent 1 selectively inhibits CSF-1R, PDGFR-α, and Src family kinases (SFKs), while sparing VEGFR, FGFR, and Abl to minimize off-target toxicity. In a bleomycin (BLM)-induced pulmonary fibrosis mouse model, it demonstrates strong antifibrotic activity.

Tyrosine kinase-IN-1 is a multi-targeted tyrosine kinase inhibitor that acts on KDR, Flt-1, FGFR1, and PDGFRα with IC50 values of 4 nM, 20 nM, 4 nM, and 2 nM, respectively.

SA-PA, a self-assembled intracellular PROTAC leveraging azide-alkyne click chemistry, selectively degrades VEGFR-2, PDGFR-β, and EphB4 proteins within U87 cells. In the presence of endogenous copper in tumor tissues, SA-PA undergoes in situ conversion to active PROTAC through a click reaction [1].