Pancreatic cancer EMT‑targeted therapy: Molecular mechanisms and clinical translation (Review)

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Abstract
Pancreatic ductal adenocarcinoma (PDAC) remains one of the most lethal malignancies, with a dismal 5‑year survival rate of ~9%, primarily due to late diagnosis, aggressive metastasis and profound resistance to conventional therapies. Epithelial‑mesenchymal transition (EMT) has been identified as a pivotal driver of these malignant phenotypes, facilitating early invasion, dissemination and treatment failure. The present review systematically elaborated on the multidimensional mechanisms underlying EMT in PDAC, emphasizing its operation as a spectrum of hybrid epithelial/mesenchymal states rather than a binary switch. Key molecular mechanisms include the activation of core transcription factors (such as Snail, ZEB, Twist), intricate crosstalk within the tumor microenvironment (such as transforming growth factor-β and hepatocyte growth factor signaling from stromal cells) and dynamic epigenetic reprogramming. Furthermore, EMT critically contributes to the acquisition of cancer stem cell properties and enhances the survival and colonization of circulating tumor cells. The present review also outlined emerging translational strategies targeting EMT‑related pathways, highlighting agents such as STNM01 that have entered early-phase clinical trials. By synthesizing unprecedented insights into EMT's plastic spectrum states and subtype‑specific regulatory networks, this work establishes a paradigm‑shifting framework for advancing EMT‑targeted therapies; offering transformative potential to overcome PDAC's historical therapeutic barriers and substantially improve patient survival outcomes. By synthesizing current insights from molecular pathways to therapeutic applications, the present review confirmed EMT as a promising therapeutic target and provides a strategic framework for advancing PDAC treatment, with the ultimate goal of improving clinical outcomes.

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