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Metochalcone induces senescence-associated secretory phenotype via JAK2/STAT3 pathway in breast cancer.
Oncology Research 2024
Breast and lung cancers are the leading causes of mortality and most frequently diagnosed cancers in women and men, respectively, worldwide. Although the antitumor activity of chalcones has been extensively studied, the molecular mechanisms of isoliquiritigenin analog 2', 4', 4-trihydroxychalcone (metochalcone; TEC) against carcinomas remain less well understood. In this study, we found that TEC inhibited cell proliferation of breast cancer BT549 cells and lung cancer A549 cells in a concentration-dependent manner. TEC induced cell cycle arrest in the S-phase, cell migration inhibition in vitro , and reduced tumor growth in vivo . Moreover, transcriptomic analysis revealed that TEC modulated the activity of the JAK2/STAT3 and P53 pathways. TEC triggered the senescence-associated secretory phenotype (SASP) by repressing the JAK2/STAT3 axis. The mechanism of metochalcone against breast cancer depended on the induction of SASP via deactivation of the JAK2/STAT3 pathway, highlighting the potential of chalcone in senescence-inducing therapy against carcinomas.
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