show Abstracthide AbstractWe find that malignant LUAD tumor cells grown in the brain microenvironment display significantly altered transcriptomic profiles when compared to tumor cells grown in monolayer or subcutaneously. Additionally, we characterize the reciprocal neuroinflammatory response of the surrounding brain stroma to metastatic LUAD. This dataset can be utilized to explore the mechanisms of LUAD cell plasticity as well as the co-adaptation of the brain microenvironment to metastatic disease. Overall design: Examination of the transcriptomic profiles of LUAD cells grown in different microenvironments (i.e., Brain, subcutaneous, monolayer culture) and the corresponding gene expression alterations of the stroma in the tumor-bearing brain.