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Anti-tumor Efficacy of HRS-4642 and Its Potential Combination with Proteasome Inhibition in KRAS G12D-mutant Cancer

ABSTRACT: Anti-tumor Efficacy of HRS-4642 and Its Potential Combination with Proteasome Inhibition in KRAS G12D-mutant Cancer

PROVIDER: PRJNA1114010 | ENA |

REPOSITORIES: ENA

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Anti-tumor Efficacy of HRS-4642 and Its Potential Combination with Proteasome Inhibition in KRAS G12D-mutant Cancer

Project description:KRAS G12D is the most frequently mutated oncogenic KRAS subtype in solid tumors and remains undruggable in clinical settings. Here, we developed a high affinity, selective, long-acting, and non-covalent KRAS G12D inhibitor, HRS-4642, with an affinity constant of 0.083 nM. HRS-4642 demonstrats robust efficacy against KRAS G12D-mutant cancers both in vitro and in vivo. Importantly, in a phase 1 clinical trial, HRS-4642 exhibits promising anti-tumor activity in the escalating dosing cohorts. Furthermore, the sensitization and resistance spectrum for HRS-4642 was deciphered through genome-wide CRISPR/Cas9 screening, which unveiled the proteasome as a synergistic target. We further observed that the proteasome inhibitor, carfilzomib, prominently improved the anti-tumor efficacy of HRS-4642. Additionally, HRS-4642, especially when combined with carfilzomib, significantly reshapes the tumor microenvironment towards an immune permissive one. In summary, this study provides potential therapies for patients with KRAS G12D-mutant cancers, for whom effective treatments are currently lacking.

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Anti-tumor Efficacy of HRS-4642 and Its Potential Combination with Proteasome Inhibition in KRAS G12D-mutant Cancer [CRISPR]

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Anti-tumor Efficacy of HRS-4642 and Its Potential Combination with Proteasome Inhibition in KRAS G12D-mutant Cancer [CRISPR]

Project description:Anti-tumor Efficacy of HRS-4642 and Its Potential Combination with Proteasome Inhibition in KRAS G12D-mutant Cancer [CRISPR]

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RNA-SEQ analysis of pancreatic ductal adenocarcinoma tumours in Pdx1-Cre;lsl-KRas[G12D] (KC), Pdx1-Cre;lsl-KRas[G12D];Rosa26-lsl-MYC[DM] (KMC), Pdx1-Cre;lsl-KRas[G12D];Rosa26-lsl-MYC[DM];c-Myc[fl/+] (KMC-Mycfl/+), and Pdx1-Cre;lsl-KRas[G12D];Rosa26-lsl-MYC[DM];Zbtb17[fl/fl] mice (KMC-Miz1fl/fl)

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