MK-5108

Highly expressed EZH2 is a predictor of a suboptimal prognosis in LUAD and may serve as a prognostic marker and target gene for LUAD. The underlying cause may be associated with the synergistic effect of KRAS, immune cell infiltration, and metabolic processes.

We present a structure-activity relationship (SAR) study of MK-5108-derived PROTACs against AURKA by exploring different linker lengths and exit vectors on the thalidomide moiety. Furthermore, altering the attachment point of the PEG linker to the 5-position of thalidomide allowed us to identify a potent AURKA degrader with a linker as short as 2 PEG units. With this, our SAR-study provides interesting lead structures for further optimization and validation of AURKA degradation as a potential therapeutic strategy in neuroblastoma.

We demonstrated that using HTS can considerably shorten drug discovery time scales, leading to the identification of promising lead compounds. Our study is the first to provide preclinical evidence of the antileukemic activity of AURKAi, with particular focus on NPM1-mutated AML.

In the validation assay, 2 compounds (MK-5108 and MK-8745) were confi rmed as more active against NPM1-mutated than NPM1–wild-type AML cells by either CyQUANT or apoptosis assay. Strikingly, we confi rmed selectivity for two additional AURKAi (Alisertib and ENMD-2076, both isoform-selective inhibitors of AURKA) that were not included in the screening library... We demonstrated that using HTS can considerably shorten drug discovery time scales, leading to the identifi cation of promising lead compounds. Our study is the fi rst to provide preclinical evidence of the antileukemic activity of AURKAi, with particular focus on NPM1-mutated AML.

However, the presence of necroptosis was ruled out in MK-5108-treated IMR-32 and CHP-134 cells. In summary, the effects of the combination of ch14.18/CHO mAb and aurora A kinase inhibitors (MK-5108 and MK-8745) were shown to enhance apoptosis in IMR-32 cells compared to when used individually.

OSU-03012 (PDK1 inhibitor) and MK-5108 (AurA inhibitor) were used as reference compounds to investigate the functional crosstalk between the two pathways in sensitive cancer cell lines.Results. Here we report the characterization of two potent first-in-class dual PDK1-AurA inhibitors, SA16 and VI8. Our findings suggest that innovative PDK1/AurA dual-target molecules which could represent an attractive lead scaffold for the design and synthesis of a new multitarget strategy for Ewing sarcoma.

However, the effects of ID1 were markedly reversed by the AURKA inhibitor VX689 and the Myc inhibitor 10058‑F4...Increased AURKA expression subsequently enhanced Myc expression at both transcriptional and post‑transcriptional level, leading to amplification of the Myc oncogenic signaling pathway. This novel ID1/AURKA/Myc axis could be a promising therapeutic target for the development of effective therapeutic strategies for advanced HCC.

Dose response curves were performed using tyrosine kinase inhibitors: MK-5108 (AURKA), LY2603618 (CHK1) and Volasertib (PLK1) using viability assays and cell cycle analysis. AURKA, CHK1 and PLK1 are identified as important survival genes in chondrosarcoma cell lines. Although further research is needed to validate these findings, inhibiting CHK1 seems to be the most promising potential therapeutic target for patients with chondrosarcoma.