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Multi-Omics Pan-Cancer Bioinformatics Workflow for Evaluating PTDSS1 and PTDSS2 as Prognostic and Immune Biomarkers
Weiqiu Ding1, Wenjun Xu1, Weijie Zhou2
1Institute of Translational Medicine Zhuhai People's Hospital Affiliated with Jinan University.
Journal of Visualized Experiments : Jove
|June 22, 2026
Summary
Phosphatidylserine synthesis enzymes PTDSS1 and PTDSS2 are upregulated in many cancers, correlating with poor survival and tumor progression. These enzymes show potential as diagnostic biomarkers and immunotherapy targets across diverse cancer types.
Area of Science:
- Molecular Biology
- Oncology
- Immunology
Background:
- Phosphatidylserine synthesis enzymes (PTDSS1 and PTDSS2) are crucial for cellular functions.
- Their abnormal expression is linked to breast cancer progression and poor outcomes.
- Comprehensive roles across diverse cancer types are not well understood.
Purpose of the Study:
- To conduct a pan-cancer analysis of PTDSS1 and PTDSS2.
- Evaluate their diagnostic, prognostic, immune infiltration, and immunotherapeutic relevance.
- Investigate their association with clinical stage and tumor stemness.
Main Methods:
- Utilized multiple public databases for comprehensive analysis.
- Analyzed gene expression, clinical correlations, and survival outcomes.
- Assessed tumor stemness scores and immune-related characteristics.
Main Results:
- PTDSS1 and PTDSS2 are widely expressed and significantly upregulated in most tumor tissues.
- High expression correlates with poorer overall survival (OS) in several cancers.
- Associated with clinical stage, tumor stemness, tumorigenesis, immune regulation, and chemoresistance.
Conclusions:
- PTDSS1 and PTDSS2 possess significant prognostic value across multiple cancer types.
- They may serve as potential biomarkers for cancer diagnosis and prognosis.
- These enzymes represent promising targets for novel cancer immunotherapies.
