ST14 interacts with TMEFF1 and is a predictor of poor prognosis in ovarian cancer

Area of Science:

• Oncology
• Molecular Biology
• Biochemistry

Background:

• TMEFF1 (epilepsin) is implicated in central nervous system function and ovarian cancer promotion.
• ST14 is involved in epidermal differentiation, epithelial integrity, and cell migration.
• The interaction between ST14 and TMEFF1 in ovarian cancer is currently unknown.

Purpose of the Study:

• To investigate the expression, interaction, and functional relationship of ST14 and TMEFF1 in ovarian cancer.
• To determine the prognostic significance of ST14 and TMEFF1 in ovarian cancer.
• To explore the potential of the ST14-TMEFF1 axis as an anti-cancer therapeutic target.

Main Methods:

• Immunohistochemistry on 130 ovarian cancer tissues.
• Immunofluorescence and immunoprecipitation for protein interaction analysis.
• Western blot, MTT, wound healing, and Transwell assays for functional studies.
• Gene Ontology and KEGG pathway analysis.

Main Results:

• ST14 and TMEFF1 were highly expressed in ovarian cancer, correlating with malignancy and poor prognosis.
• ST14 and TMEFF1 co-localize, interact, and ST14 positively regulates TMEFF1 expression.
• Knockdown of ST14 inhibited ovarian cancer cell proliferation, migration, and invasion, effects reversed by TMEFF1 addition.
• Enrichment analysis revealed ST14-related genes in epithelial formation, cell adhesion, and mitosis.

Conclusions:

• High ST14 and TMEFF1 expression signifies poor prognosis in ovarian cancer.
• ST14 and TMEFF1 interact and co-localize, with ST14 regulating TMEFF1 to promote ovarian cancer progression.
• The ST14-TMEFF1 pathway represents a promising therapeutic target for ovarian cancer treatment.