ArticleWorld journal of gastrointestinal oncology2023
Proteomics-based identification of proteins in tumor-derived exosomes as candidate biomarkers for colorectal cancer.
Article in World journal of gastrointestinal oncology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Diagnostic Potential of Exosomes in Colorectal Cancer: Current Advances and Future Perspectives.Molecules (Basel, Switzerland) · 2026Review
- Emerging insights into exosomal protein functions in colorectal cancer.Discover oncology · 2026Review
- Extracellular vesicles cargo orchestration in colorectal cancer: immune evasion, stromal remodeling, and therapeutic frontiers.Molecular cancer · 2025Review
- Olfactomedin 4 in cancer development and progression.Biochimica et biophysica acta. Reviews on cancer · 2025Review
- Exosomes in inflammation and cancer: from bench to bedside applications.Molecular biomedicine · 2025Review
- Article
- Protein cargo in extracellular vesicles as the key mediator in the progression of cancer.Cell communication and signaling : CCS · 2024Review
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6 authors.
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Abstract
backgroundColorectal cancer (CRC) is the second leading cause of cancer-related death, with high morbidity worldwide. There is an urgent need to find reliable diagnostic biomarkers of CRC and explore the underlying molecular mechanisms. Exosomes are involved in intercellular communication and participate in multiple pathological processes, serving as an important part of the tumor microenvironment.
aimTo investigate the proteomic characteristics of CRC tumor-derived exosomes and to identify candidate exosomal protein markers for CRC.
methodsIn this study, 10 patients over 50 years old who were diagnosed with moderately differentiated adenocarcinoma were recruited. We paired CRC tissues and adjacent normal intestinal tissues (> 5 cm) to form the experimental and control groups. Purified exosomes were extracted separately from each tissue sample. Data-independent acquisition mass spectrometry was implemented in 8 matched samples of exosomes to explore the proteomic expression profiles, and differentially expressed proteins (DEPs) were screened by bioinformatics analysis. Promising exosomal proteins were verified using parallel reaction monitoring (PRM) analysis in 10 matched exosome samples.
resultsA total of 1393 proteins were identified in the CRC tissue group, 1304 proteins were identified in the adjacent tissue group, and 283 proteins were significantly differentially expressed between them. Enrichment analysis revealed that DEPs were involved in multiple biological processes related to cytoskeleton construction, cell movement and migration, immune response, tumor growth and telomere metabolism, as well as ECM-receptor interaction, focal adhesion and mTOR signaling pathways. Six differentially expressed exosomal proteins (NHP2, OLFM4, TOP1, SAMP, TAGL and TRIM28) were validated by PRM analysis and evaluated by receiver operating characteristic curve (ROC) analysis. The area under the ROC curve was 0.93, 0.96, 0.97, 0.78, 0.75, and 0.88 (
conclusionIn our study, comprehensive proteomic profiles were obtained for CRC tissue exosomes. Six exosomal proteins, NHP2, OLFM4, TOP1, SAMP, TAGL and TRIM28, may be promising diagnostic markers and effective therapeutic targets for CRC, but further experimental investigation is needed.
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