• A prospective study analyzed malignant serous effusions (MSEs) from 184 patients to understand the molecular landscape and drug responses for precision oncology.
• The study integrated genomic, transcriptomic, and proteomic data from MSEs to identify potential therapeutic targets and predict drug sensitivities.
• Ex vivo drug screening (pharmacoscopy) was performed on MSE-derived cells to quantify cellular composition and drug responses, revealing personalized therapeutic strategies.
• Multi-omics factor analysis identified disease-specific factors and potential therapeutic targets, offering insights into patient-specific drug responses.