To investigate the effects of LASP1 overexpression on the biological function of HNSCC cells, LASP1 was overexpressed in the CAL27 and HN6 cells at the same time, and it was determined that the exogenous LASP1 protein and mRNA levels were significantly increased after lentivirus infection (Figure 3A). The gene discussed is LASP1; the disease is lentivirus infection.