ArticleJournal of pathology and translational medicine2026
Progastrin, annexin A2, and tumor-associated macrophages in gastric adenocarcinoma.
Article in Journal of pathology and translational medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundGastric adenocarcinoma is a major cause of cancer mortality worldwide, and reliable biomarkers remain insufficient. This study investigates the immunohistochemical expression of progastrin (hPG) and annexin A2 (ANXA2) and the polarization of tumor-associated macrophages in gastric adenocarcinoma to explore their potential prognostic and biological significance.
methodsA retrospective analysis was conducted on formalin-fixed, paraffin-embedded tissue samples from 60 patients with gastric adenocarcinoma (primary tumors, lymph node metastases, and non-tumoral gastric mucosa) and gastric biopsies from 23 healthy controls. The expression of hPG and ANXA2 was quantified using the H-score, and the CD163/human leukocyte antigen-DR (HLA-DR) ratio was used to represent macrophage polarization (M2/M1). Statistical analyses included non-parametric tests, Spearman correlations, Kaplan-Meier survival curves, and Cox proportional-hazards models.
resultsANXA2 expression was significantly elevated in cancer cells from primary tumors and lymph node metastases, compared with the non-tumoral gastric mucosa tissues and gastric mucosa tissues from healthy controls. ANXA2 expression increased with the tumor grade. High ANXA2 levels were associated with shorter overall and disease-free survival, but they did not have independent prognostic value. Although hPG expression correlated positively with ANXA2, it showed no significant prognostic association. The CD163/HLA-DR ratio increased with tumor progression and negatively correlated with ANXA2, but it did not influence survival outcomes.
conclusionsThis study is the first to demonstrate the adverse prognostic impact of ANXA2 overexpression in gastric adenocarcinoma tissues from Caucasian patients. Our results suggest that ANXA2 might have utility as a prognostic biomarker and therapeutic target, if further large-scale studies validate and expand our findings.
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