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Published on: July 20, 2014
Slit2 expression and its correlation with subcellular localization of β-catenin in gastric cancer
Rongliang Shi1, Weiyan Liu, Bingya Liu
1Department of General Surgery, Central Hospital of Shanghai Minhang District, Shanghai 201100, P.R. China.
Abstract:
Gastric cancer is the fourth most common cancer worldwide. Several signaling pathways are involved in gastric cancer development and progression. Slit2 was recently found to be involved in cancer; however, its expression pattern in gastric cancer has not been discovered yet. In the present study, we investigated the expression of Slit2 in human gastric cancer and its correlation with the expression and subcellular localization of β-catenin. Immunohistochemistry (IHC) staining revealed that Slit2 was highly expressed in human gastric cancer tissues, while it was low or weakly expressed in normal gastric tissues. The differences in clinicopathological features between different groups were determined using Pearson's χ2 test. Slit2 levels were significantly associated with differentiation, Lauren's classification, lymph node metastasis and TNM staging. Slit2 levels were positively correlated with β-catenin level in gastric cancer tissues and cell lines. High levels of Slit2 were correlated with the membrane localization of β-catenin, and low levels of Slit2 were correlated with nuclear translocation of β-catenin in both gastric cancer tissues and cell lines assayed by IHC and immunofluorescence staining, respectively. Our data suggest that Slit2 was highly expressed in gastric cancer patients with less advanced clinicopathological features. Slit2 levels were correlated with β-catenin level and subcellular localization.
Insights
Slit2 is highly expressed in gastric cancer, correlating with less advanced disease and influencing beta-catenin
Area of Science:
- Oncology
- Molecular Biology
- Cell Biology
Background:
- Gastric cancer is a leading global malignancy.
- Signaling pathways critically influence gastric cancer progression.
- The role of Slit2 in gastric cancer remains largely uncharacterized.
Purpose of the Study:
- To investigate Slit2 expression in human gastric cancer.
- To explore the correlation between Slit2 and beta-catenin.
- To determine the impact of Slit2 on gastric cancer clinicopathological features.
Main Methods:
- Immunohistochemistry (IHC) for Slit2 and beta-catenin.
- Immunofluorescence staining for subcellular localization.
- Pearson's chi-squared test for statistical analysis.
Main Results:
- Slit2 expression is elevated in gastric cancer tissues compared to normal tissues.
- Slit2 levels correlate positively with beta-catenin expression.
- High Slit2 is associated with membrane beta-catenin, while low Slit2 correlates with nuclear beta-catenin translocation.
- Slit2 expression is linked to differentiation, Lauren's classification, lymph node metastasis, and TNM stage.
Conclusions:
- Slit2 is upregulated in gastric cancer.
- Slit2 expression is associated with specific clinicopathological features.
- Slit2 influences beta-catenin localization, suggesting a role in gastric cancer development.
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