Claudin-1 expression in cervical cancer.

Area of Science:

• Oncology
• Molecular Biology
• Pathology

Background:

• Claudin-1 is a tight junction protein implicated in tumorigenesis across solid tumors.
• Its role in squamous cervical cancer progression requires further elucidation.

Purpose of the Study:

• To analyze claudin-1 protein expression in squamous cervical cancer tissues.
• To investigate the association between claudin-1 expression and clinicopathological parameters, including patient survival.

Main Methods:

• Immunohistochemistry was used to assess claudin-1 protein expression in 106 patient tissue samples.
• Expression levels were compared between tumor cells and peritumoral stroma.
• Correlations with FIGO stage, tumor size, grade, metastasis, and survival were analyzed.

Main Results:

• Significant claudin-1 overexpression was observed in tumor cells compared to stromal cells.
• No significant association was found between claudin-1 expression and FIGO stage, tumor size, grading, or distant metastases.
• Patients with positive claudin-1 expression showed a higher rate of lymph node metastasis (28.3%) versus negative patients (7.1%).
• Claudin-1-negative patients tended to have a better overall survival prognosis.

Conclusions:

• Claudin-1 is significantly overexpressed in squamous cervical cancer.
• Elevated claudin-1 expression may be associated with increased lymph node metastasis and a less favorable prognosis.
• Further research is needed to confirm the prognostic significance of claudin-1 in cervical cancer.