The document analyzes the tumor transcriptomics profile of a patient with stage IV gallbladder cancer. It identifies the top 200 most significantly activated expression regulators in the patient's tumor using sub-network enrichment analysis software. Key regulators identified include histone deacetylases and DNA methyltransferases. The analysis suggests treatment with the HDAC inhibitor vorinostat and discusses how activated regulators like HDACs, PDCD1, and CTLA4 may be contributing to tumor proliferation and immune evasion. Graphical summaries show pathways enriched with active regulators in the tumor related to cancer hallmarks like histone modification and immune response evasion.