Loss of ARID1A expression is associated with poor prognosis in patients with gastric cancer

Deletion of the frequently mutated AT-rich interacting domain-containing protein 1A (ARID1A), an SWI/SNF subunit, is associated with poor prognosis in various tumors. This study observed and analyzed ARID1A expression and its correlation with prognosis in gastric carcinoma. Postoperative sections of 98 patients with primary gastric cancer and 40 patients with gastric benign lesions were examined by immunohistochemistry. ARID1A deficiency was observed in 19.39% of gastric cancer tissues, 4.08% of matched paracancerous tissues, and 2.5% of normal gastric mucosa.

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