ANO1 is differentially expressed in lymph node metastasis in human breast cancer [post]

Shahan Mamoor
2021 unpublished
Metastasis to the brain is a clinical problem in patients with breast cancer (1-3). Between the breast and the brain reside the secondary lymphoid organ, the lymph nodes. We mined published microarray data (4, 5) to compare primary and metastatic tumor transcriptomes for the discovery of genes associated with metastasis to the lymph nodes in humans with metastatic breast cancer. We found that anoctamin 1, ANO1, was among the genes whose expression was most different in the lymph node metastases
more » ... mph node metastases of patients with metastatic breast cancer as compared to primary tumors of the breast. ANO1 mRNA was present at increased quantities in lymph node metastases as compared to primary tumors of the breast. Importantly, expression of ANO1 in primary tumors of the breast was correlated with patient overall survival, in lymph node positive patients but not in lymph node negative patients. Modulation of ANO1 expression may be relevant to the biology by which tumor cells metastasize from the breast to the lymph nodes and the brain in humans with metastatic breast cancer.
doi:10.31219/ fatcat:ngktbaoavbca7mupqhl73ku4gu