Immune infiltration correlates with transcriptomic subtypes in primary estrogen receptor positive invasive lobular breast cancer

NPJ Precis Oncol. 2024 Nov 9;8(1):257. doi: 10.1038/s41698-024-00746-z.

Abstract

Understanding interplay of breast cancer and microenvironment is critical. Here we identified two transcriptomic subtypes and five immune infiltration patterns from RNA-seq and multiplex immunohistochemistry from 21 ER + /HER2- ILCs. We found proliferative subtype associated with increased suppressive immune infiltration, and defined a signature associated with lower proliferative, pro-inflammatory TAM infiltration, and improved survival in ER+ breast cancer. Our work identified genes related to ILC immune microenvironment and prognosis.