HNO258 Cells

The HNO258 cell line is derived from an oral squamous cell carcinoma, which is a subtype of head and neck squamous cell carcinoma (HNSCC). This cell line exhibits several chromosomal abnormalities, which have been identified through chromosomal comparative genomic hybridization (cCGH). Specifically, HNO258 has shown DNA copy number gains in the chromosomal regions 1q41, 3q21-qter, 7p, 7cen-q21, 8q22-qter, 9cen-p13, 9q31-qter, 11q13, 15p, and 15q. Additionally, it displays copy number losses in the regions 4p and 18q12-qter. These genetic alterations are common in HNSCC and are associated with tumorigenesis and cancer progression.

The amplification of 11q13, observed in HNO258, is particularly noteworthy due to its association with the overexpression of oncogenes such as CCND1 (cyclin D1) and CTTN (cortactin), which are involved in cell cycle regulation and cytoskeletal organization, respectively. These oncogenes are frequently implicated in the aggressive behavior of cancer cells, contributing to increased proliferation and invasiveness. The detailed genetic characterization of HNO258 makes it a valuable model for studying the molecular mechanisms underlying oral squamous cell carcinoma and for evaluating potential therapeutic strategies that target these specific genetic alterations.