Panoply™ Human PTK2 Knockdown Stable Cell Line

Dyslipidemia is associated with acute promyelocytic leukemia (APL), and lipid metabolism abnormalities have also been observed during treatment. However, its role in the pathogenesis of APL remains unclear. Here, studies show that elevated triglyceride (TG) levels are positively correlated with high-risk APL, while decreased high-density lipoprotein cholesterol (HDL-C) levels are associated with lower risk. Low-density lipoprotein cholesterol (LDL-C) is an independent prognostic marker, with lower levels associated with poor prognosis. PTK2 expression significantly promotes the proliferation, migration, and lipid metabolism of APL cells, highlighting its role in APL pathogenesis. PTK2 regulates lipid metabolism-related factors, such as LDL and fibrinogen, through molecular pathways. These studies demonstrate that PTK2 plays a crucial role in lipid metabolism regulation and APL progression, providing a new molecular basis for risk assessment and targeted therapy. These findings offer potential biomarkers for early diagnosis and individualized treatment strategies.

PTK2 is expressed in various cell lines, with significantly higher expression levels in APL cell lines (NB4 and HL-60) compared to the control group (CD34+), suggesting that PTK2 plays an important role in the development of APL (Figure 1A). To further investigate the function of PTK2, researchers constructed PTK2 knockdown NB4 and HL-60 cell lines (Figure 1B). CCK-8 assays showed that cell proliferation was significantly reduced after PTK2 knockdown (Figure 1C). Furthermore, Annexin V-FITC/PI staining results showed that the apoptosis rate of PTK2 knockdown cells was significantly higher than that of the control group, indicating that PTK2 knockdown significantly increased apoptosis (Figure 1D). In migration experiments, PTK2 overexpression significantly promoted the migration ability of NB4 and HL-60 cells, while PTK2 knockdown significantly inhibited cell migration (Figure 1E). In addition, ELISA results showed that PTK2 overexpression significantly increased the levels of low-density lipoprotein (LDL) and fibrinogen (FIB) in NB4 and HL-60 cells, while the expression levels of LDL and FIB were significantly reduced in PTK2 knockdown cells (Figure 1F). These results suggest that PTK2 plays a crucial biological role in APL cells by regulating lipid metabolism and promoting cell proliferation and migration.

Figure 1. Expression and functional experiments of PTK2 in APL. (Wang S, et al., 2025)