Project description:We used single-cell RNA-sequencing to investigate the role of brain-resident microglia versus infiltrating cells in a mouse model of breast cancer brain metastasis (BCBM). We generated brain metastases with a cardiac-injection of the human triple-negative breast cancer cell line MDA-MB-231BR2 (231BR) into Foxn1 nu/nu mice and allowed tumors to grow in the brain for four weeks. We then compared astrocytes (ASCA2+CD45-) and myeloid cells (CD11b+CD45+) from these mice verses control Foxn1 nu/nu brains to find transcriptional changes associated with BCBM.
Project description:Purpose: we aimed at identify and compare the transcriptional changes of ALDH- and ALDH+ DU145 xenografts upon radiotherapy treatment. Method: Xenografts were generated by injection of ALDH- and ALDH+ DU145 cells in male NMRI-Foxn1 nu/nu immune-deficient mice and subjected to fractionated irradiation to a final dose of 50 Gy. Tumors were excised and processed for total RNA extraction and RNAseq analysis.
