Our data collectively indicate that miR-196b-5p inhibits cell growth and metastasis in breast cancer through down-regulating COL1A1, supporting the targeting of the new miR-196b-5p/COL1A1 axis as a promising effective therapeutic approach for breast cancer.
Furthermore, depletion of MRTF-A abolished the upregulation of COL1A1 in response to the TGF-β or Wnt signaling, indicating the importance of MRTF-A in the synthesis of type I collagen in breast cancer.
In a mouse model of mammary carcinoma in the context of increased collagen deposition, the MMTV-PyMT/Col1a1 (tm1jae) , there is accelerated mammary tumor formation and progression.
The top SNP associations in GEE models for each trait were as follows: breast cancer, rs2075555, p = 8.0 x 10(-8) in COL1A1; and prostate cancer, rs9311171, p = 1.75 x 10(-6) in CTDSPL.