Circulating intercellular adhesion molecule-1 and E-selectin levels in gastric cancer

Area of Science:

• Oncology
• Immunology
• Biochemistry

Background:

• Adhesive interactions between cancer cells and the extracellular matrix drive tumor growth and metastasis.
• Altered adhesion molecule expression is linked to tumor progression in various cancers.
• Circulating soluble adhesion molecules are emerging biomarkers for disease monitoring.

Purpose of the Study:

• To investigate serum levels of soluble intercellular adhesion molecule-1 (sICAM-1) and soluble E-selectin (sE-selectin) in gastric cancer patients.
• To correlate these levels with disease stage, metastasis, and other tumor markers.
• To assess the prognostic significance of sICAM-1 and sE-selectin in gastric cancer.

Main Methods:

• Enzyme-linked immunosorbent assay (ELISA) was used to quantify serum sICAM-1 and sE-selectin.
• Study included 27 untreated gastric adenocarcinoma patients and 18 healthy controls.
• Serum levels were analyzed in relation to TNM stage, distant metastasis, peritoneal spread, CEA, and CA 19-9.

Main Results:

• Serum sICAM-1 levels were significantly higher in gastric cancer patients compared to controls (P < 0.0001).
• Elevated sICAM-1 correlated with distant metastasis and peritoneal spread (P = 0.0045, P = 0.0157).
• sE-selectin levels were not significantly different in cancer patients but elevated in peritoneal metastasis (P = 0.033); both correlated with CEA.

Conclusions:

• Increased serum sICAM-1 suggests widespread disease and potential contribution to gastric cancer progression.
• sE-selectin elevation in peritoneal metastasis and association with poorer prognosis warrant further investigation.
• Adhesive molecule interactions are crucial for understanding gastric cancer's natural history.