A comprehensive proteomic analysis uncovers novel molecular subtypes of gastric signet ring cell carcinoma: Identification of potential prognostic biomarkers and therapeutic targets.

ABSTRACT: Gastric signet ring cell carcinoma (GSRCC) is a distinct subtype of gastric cancer with unique epidemiological and pathogenic characteristics. However, its prognostic features and molecular landscape remain poorly understood, limiting the development of targeted therapies. In this study, we analyzed clinical data from over 10,000 patients with gastric cancer treated at Zhejiang Cancer Hospital between January 2010 and December 2019. A comprehensive proteomic analysis was conducted on 112 GSRCC patients with a signet ring cell content exceeding 70%, identifying 7322 proteins. This study established a tissue-specific peptide spectral library, representing the most extensive proteomic atlas of GSRCC to date. We identified four novel proteomic subtypes: metabolism, microenvironment dysregulati

SUBMITTER: Jin Z 

PROVIDER: S-EPMC12557601 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature