Dr. Rheinbay and NFCR-supported scientist, Dr. Daniel Haber, are collaborating to identify therapeutic targets that may lead to novel therapies for the most deadly subtype of breast cancer, triple negative breast cancer (TNBC). As many as 10% of TNBC exhibits overexpression or amplification of the Androgen Receptor (AR). However, unlike prostate cancer, AR expression in TNBC does not correlate with response to anti-androgens. They will determine whether this pathway can lead to a new treatment option in TNBC.
From circulating tumor cells (CTCs) from patients with and without amplification of the AR, sequencing data will be collected and from experiments that deplete the AR and its co-factor, FoxA1. Dr. Rheinbay will computationally analyze the sequencing and omic (genomic and transcriptome) data. Analysis of the data will identify genes that are differentially altered. Her lab will track genomic changes to identify potential transcription factors and DNA regulators that bind to the gene areas (loci) and contribute to the changes. This may lead to identification of downstream targets for further exploration of enriched molecular pathways.





