hnRNPK-IN-1 is a heterogeneous nuclear ribonucleoprotein K (hnRNPK) binding ligand with Kd values of 4.6 μM and 2.6 μM measured with SPR and MST, respectively. hnRNPK-IN-1 inhibits c-myc transcription by disrupting the binding of hnRNPK and c-myc promoter. hnRNPK-IN-1 induces Hela cells apoptosis and has strongly anti-tumor activities[1].

hnRNPK-IN-1 (Compound 25; 1.25-5 μM; 24 hours) treatment induces Hela cells apoptosis could be due to its repression of cmyc transcription[1].hnRNPK-IN-1 (1.25-5 μM; 48 hours) treatment down-regulates c-myc gene transcription and expression in Hela cells in a dose-dependent manner[1].hnRNPK-IN-1 shows a selective anti-proliferative effect on human cancer cell lines (Siha, A549, Hela, U2OS, A375, HuH7 and HEK293 cells) with IC50 values ranged from 1.36 to 3.59 μM[1].hnRNPK-IN-1 could selectively bind to hnRNP K without significant interaction with c-myc promoter DNA. The binding of hnRNPK-IN-1 to hnRNP K could disrupt the interaction between hnRNP K and c-myc promoter DNA in vitro and in cells[1].

hnRNPK-IN-1 (Compound 25; 6.7-20 mg/kg; i.p.; once a day; for three weeks) exhibits good tumor growth inhibition in a Hela xenograft tumor model[1].

[1]. Bing Shu, et al. Syntheses and evaluation of new Quinoline derivatives for inhibition of hnRNP K in regulating oncogene c-myc transcription. Bioorg Chem. 2019 Apr;85:1-17.