Related Experiment Video
Updated: Jul 23, 2025
15:17
Colorectal Cancer Cell Surface Protein Profiling Using an Antibody Microarray and Fluorescence Multiplexing
Published on: September 25, 2011
14.0K
PLA2G12A as a Novel Biomarker for Colorectal Cancer with Prognostic Relevance
Eva Parisi1,2, Ivan Hidalgo1, Robert Montal1,3,4
1Research Group of Cancer Biomarkers, Biomedical Research Institute of Lleida (IRBLleida), 25198 Lleida, Spain.
International Journal of Molecular Sciences
|July 14, 2023
Summary
Researchers identified PLA2G12A as a new prognostic biomarker for colorectal cancer (CRC). Low PLA2G12A expression indicates poor outcomes and promotes tumor growth and metastasis in CRC patients.
Area of Science:
- Oncology
- Genetics
- Molecular Biology
Background:
- Metastasis is a primary cause of colorectal cancer (CRC) mortality.
- Accurate biomarkers are essential for stratifying high-risk CRC patients and improving management.
- Identifying novel predictive biomarkers can reduce CRC-related deaths.
Purpose of the Study:
- To identify novel genes that influence circulating tumor cell numbers in colorectal cancer.
- To evaluate the potential of identified genes as prognostic biomarkers for CRC.
- To investigate the functional role of candidate genes in CRC progression.
Main Methods:
- Genome-wide genetic screen in a whole animal CRC model to identify modifier genes.
- Gene expression analysis of candidate genes in human CRC cohorts (internal and TCGA).
- In vitro functional assays using colon cancer cell lines to validate candidate functionality.
Main Results:
- Thirteen novel genes modifying circulating tumor cell numbers were identified.
- PLA2G12A expression significantly correlated with time to recurrence and overall survival in CRC patients.
- Low PLA2G12A expression was linked to epithelial-mesenchymal transition signatures and promoted cell proliferation, migration, and invasion in vitro.
Conclusions:
- PLA2G12A is identified as a prognostic biomarker for early-stage colorectal cancer.
- Low expression of PLA2G12A is associated with poor clinical outcomes and promotes tumor growth and dissemination.
- PLA2G12A deficiency contributes to CRC progression and metastasis.
