概要：The scarcity of available cell lines for studying pulmonary squamous cell carcinoma necessitates the creation of novel cell lines, such as 2427T, which was established from a 64-year-old female Caucasian donor who had been diagnosed with lung squamous cell carcinoma.
Derived from a primary tumor, this cell line closely mirrors the morphological characteristics of the corresponding tumor tissue.
Notably, 2427T cells display distinctive small, round morphology and a propensity to form clusters, which are hallmark features associated with SCC.
Moreover, 2427T demonstrates the expression of cytokeratin 5/6 (CK5/6), a squamous cell marker, affirming its SCC lineage.
The partial expression of CK5/6 in 2427T raises the intriguing possibility of distinct subpopulations within this cell line.
Further insights into the immunophenotype of 2427T cells reveal additional distinguishing characteristics.
Notably, the absence of markers associated with adenocarcinoma histology (CK7), hemato-endothelial progenitors (CD34), and leukocytes (CD45) aligns with its squamous lineage.
While neuroendocrine markers such as CD56, synaptophysin (SYP), neuron-specific enolase (NSE), and chromogranin A (CHGA) are negative in 2427T, a subset of cells within the line express SYP, implying potential heterogeneity in neuroendocrine marker expression.
Importantly, the absence of EGF-R or k-ras mutations in 2427T cells suggests that this cell line represents a unique and valuable tool for exploring the biology and characteristics of squamous cell NSCLC.
