Efficacious Combination Drug Treatment for Colorectal Cancer That Overcomes Resistance to KRAS G12C Inhibitors.
Mol Cancer Ther
; 22(4): 529-538, 2023 04 03.
Article
em En
| MEDLINE
| ID: mdl-36780229
ABSTRACT
Recent advances in combinatorial chemistry led to the discovery of inhibitors targeting the KRAS G12C-mutant protein. However, efficacy of its monotherapy on colorectal cancer is limited. Thus, effective combination drugs should be explored for applicable patients with colorectal cancer to fully benefit from the KRAS G12C inhibitor treatment. Here we used a patient-derived colorectal cancer stem cell (PD-CRC-SC) spheroid culture and showed that three-drug combination of inhibitors against KRAS G12C, EGFR, and FGFR synergistically suppressed the growth of colorectal cancer cells carrying the KRAS G12C mutation. Likewise, a combination of KRAS G12C and SHP2 inhibitors was also effective. Importantly, activation of the PI3K/AKT pathway in heregulin-responsive colorectal cancer cells canceled out the effect of KRAS G12C inhibition, which was largely overcome by PI3K inhibitors. These results reveal that evaluating efficacy of combination therapies with PD-CRC-SC spheroids can be a promising strategy to find the best regimen for patients with colorectal cancer.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Neoplasias Colorretais
/
Proteínas Proto-Oncogênicas p21(ras)
Limite:
Humans
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article