Fig. 2. (A) Western blot analysis of KLK6 and VEGF levels in KLK6^high and KLK6^low SGC-7901 cells. (B) The MTT assay was conducted to assess cell viability of KLK6^high and KLK6^low cells over a duration of 72 hours. (C) Colony formation assay was performed to compare the ability of KLK6^high and KLK6^low cells to form colonies. The number of colonies was then quantified.

KLK6 = kallikrein 6; VEGF = vascular endothelial growth factor; MTT = methyl thiazolyl tetrazolium; KLK6^high = kallikrein 6-high; KLK6^low = kallikrein 6-low.

^*Indicated value means statistical significance.