PTK2 and laryngeal carcinoma: The results are similar to those in a study by Ren et al (19), where siRNA was used to inhibit the expression of myofibrillogen-esis regulator 1 in human laryngeal carcinoma Hep-2 cells, thereby significantly reducing FAK phosphorylation at Tyr-925, and significantly inhibiting the invasion and metastasis of the Hep-2 cells.