Maspin and Lymph Node Metastasis in Gastric Cancer
Author Information
Author(s): Terashima M, Maesawa C, Oyama K, Ohtani S, Akiyama Y, Ogasawara S, Takagane A, Saito K, Masuda T, Kanzaki N, Matsuyama S, Hoshino Y, Kogure M, Gotoh M, Shirane M, Mori K
Primary Institution: Fukushima Medical University
Hypothesis
Does maspin expression correlate with lymph node metastasis in gastric cancer?
Conclusion
Maspin expression is significantly higher in gastric tumors with lymph node metastasis compared to those without.
Supporting Evidence
- Maspin was expressed in 74 of 85 tumor tissues examined.
- There was a significant correlation between maspin-positive tumor staining and lymph node metastasis.
- Immunohistochemistry showed maspin expression in gastric cancer tissues but not in normal gastric epithelium without intestinal metaplasia.
- Microarray analysis identified maspin as one of the upregulated genes in gastric cancer.
Takeaway
This study found that a protein called maspin is more common in stomach cancer that has spread to lymph nodes, which might help doctors understand how the cancer spreads.
Methodology
DNA microarray analysis was performed on tumor and normal tissue samples from 21 gastric cancer patients to assess gene expression.
Potential Biases
Potential bias in patient selection and tissue sample collection.
Limitations
The study's findings are based on a limited number of patients and may not be generalizable.
Participant Demographics
21 patients with gastric cancer, including 11 males and 10 females, aged 38 to 85.
Statistical Information
P-Value
0.0066
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
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