mCherry Reporter Cell Line - 4T1

The 4T1 cell line is an established murine breast cancer model originally derived from a spontaneous mammary tumor in a BALB/c mouse. It is widely used in cancer biology research because it closely mimics several key characteristics of advanced human breast cancer, including rapid proliferation, high tumorigenicity, and strong invasiveness. Due to its syngeneic nature with BALB/c mice, the 4T1 cell line is particularly valuable for studying tumor progression within an intact immune system. The mCherry-expressing 4T1 cell line is an engineered derivative capable of stable mCherry fluorescent reporter expression. mCherry is a red fluorescent protein characterized by high signal intensity, excellent photostability, and excitation/emission properties suitable for fluorescence microscopy, flow cytometry, and in vivo imaging platforms. Stable reporter expression enables reliable visualization and long-term tracking of 4T1 tumor cells without the need for additional staining or transient labeling.

The mCherry-expressing 4T1 cell line is applicable to a wide range of preclinical research areas, particularly breast cancer biology, tumor metastasis, tumor microenvironment studies, tumor immunology, and drug development. In vitro, the red fluorescent signal can be used to quantify cell proliferation, assess cytotoxicity, evaluate the efficacy of anti-tumor compounds, and monitor cellular responses to experimental treatments. This cell line is also suitable for wound healing assays, Transwell migration and invasion assays, 3D spheroid cultures, co-culture systems, and high-content imaging analysis. Because the mCherry signal allows for the direct identification of tumor cells, it can be utilized in complex experimental models involving stromal cells, immune cells, endothelial cells, or extracellular matrix components. In vivo, 4T1-mCherry cells can be implanted into BALB/c mice to establish orthotopic or metastatic breast cancer models, allowing for the monitoring of tumor growth and metastatic spread via fluorescence imaging or ex vivo tissue analysis.