Journal: Oncology Research
Article Title: Single-Cell and Multi-Omics-Based Characterization of Gastric Cancer Identifies TPP1 as a Potential Target for Gastric Cancer Progression and Treatment
doi: 10.32604/or.2026.070208
Figure Lengend Snippet: Abnormal expression of TPP1 was verified. ( A ) Boruta algorithm identified six key prognostic signature genes, with TPP1 ranking as the top contributor. ( B ) Pan-cancer differential expression analysis revealed significant overexpression of TPP1 across multiple malignancies. ( C , D ) Bar plots show that TPP1 expression is significantly elevated in gastric cancer tissues based on both unpaired and paired comparisons. ( E ) Kaplan–Meier survival analysis demonstrated that high TPP1 expression correlates with poorer overall survival in gastric cancer patients. ( F ) Immunohistochemical staining confirmed upregulated TPP1 protein expression in gastric cancer tissues (HPA: The Human Protein Atlas). ( G ) Western blot analysis further validated increased TPP1 protein levels in tumor samples. ( H ) qRT-PCR analysis confirmed that TPP1 mRNA expression was significantly elevated in gastric cancer tissues (n = 4). Data are presented as mean ± standard deviation (SD). Statistical comparisons were performed using Student’s t -test unless otherwise indicated. Significance levels were defined as follows: p < 0.05 (*), p < 0.01 (**), p < 0.001 (***), and p < 0.0001 (****).
Article Snippet: After blocking at room temperature for 1 h, membranes were incubated overnight at 4°C with primary antibodies against TPP1 (1:3000, Proteintech, 25849-1-AP, Chicago, IL, USA) and GAPDH (1:3000, Proteintech, 10494-1-AP, Chicago, IL, USA).
Techniques: Expressing, Quantitative Proteomics, Over Expression, Immunohistochemical staining, Staining, Western Blot, Quantitative RT-PCR, Standard Deviation