ArticleFrontiers in immunology2025
Immunodiagnostic profiling of SPON2 and MSMB as biomarkers in prostate cancer for nanomaterial- based detection strategies.
Article in Frontiers in immunology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Nanotechnology in Prostate Cancer: PSMA-Targeted Nanoplatforms, TME-Responsive Therapy, Immunomodulation, and Clinical Translation Challenges.International journal of nanomedicine · 2026Review
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5 authors.
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Abstract
Background: This study aimed to validate secreted biomarkers SPON2 and MSMB with tumor-specific expression and immunogenicity for nanomaterial-based prostate cancer diagnostics. Methods: Gene expression data (GSE55945), comprising 13 prostate tumor and 8 normal tissue samples, retrieved from the GEO database and analyzed by Affymetrix Human Genome U133 Plus 2.0 Array platform. Differentially expressed genes (DEGs) were identified using thresholds of |log Results: Out of 243 DGE, five upregulated candidates encoding secretory proteins were identified. Of these, SPON2 and MSMB exhibited high diagnostic performance with AUC values of 0.99 and 0.93, respectively. qRT-PCR validation in clinical samples confirmed significant overexpression of SPON2 (~18-fold) and MSMB (~2.6-fold) in prostate tumor tissues compared to matched normal tissues. Both proteins demonstrate extracellular localization and immune accessibility, supporting their feasibility as targets for antibody- or epitope-based capture strategies. These properties position SPON2 and MSMB as ideal candidates for nanoparticle-conjugated peptide biosensors designed for immunomodulated detection of prostate cancer. Epitope E1 (SPON2) and E2 (MSMB) showed antigenicity scores of 0.80 and 0.52, respectively, and were validated by ELISA, with E1 exhibiting significantly higher reactivity in cancer sera (OD 1.49 vs. 0.81, Conclusion: SPON2 and MSMB are secretory, immunogenic biomarkers overexpressed in prostate cancer. Their validated B cell epitopes demonstrate strong diagnostic performance, supporting their potential in nanomaterial-based immunodiagnostic strategies for non-invasive prostate cancer detection.
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