Exploratory analyses of the associations between Ki-67 expression, lymph node metastasis, and prognosis in patients with esophageal squamous cell cancer

Bibliographic Details
Title: Exploratory analyses of the associations between Ki-67 expression, lymph node metastasis, and prognosis in patients with esophageal squamous cell cancer
Authors: Jianqing Zheng, Bifen Huang, Ying Chen, Bingwei Zeng, Lihua Xiao, Min Wu
Source: PeerJ, Vol 13, p e19062 (2025)
Publisher Information: PeerJ Inc., 2025.
Publication Year: 2025
Collection: LCC:Medicine
LCC:Biology (General)
Subject Terms: Esophageal cancer, Ki-67/MKI67, Lymph node metastasis, Proliferation, Prognostic analysis, Medicine, Biology (General), QH301-705.5
More Details: Background The relationships between Ki-67/MKI67 expression, lymph node metastasis (LNM), vascular invasion (VI), and perineural invasion (PI) in esophageal squamous cell cancer (ESCC) remain unclear. This retrospective cohort study was performed to evaluate the prognostic value of Ki-67 expression and its association with LNM in patients with resected ESCC. Methods The analysis included 168 patients with ESCC with available Ki-67 protein expression data. The patients were divided into Ki-67 high-expression group (Ki-67 High, 93 cases) and Ki-67 low-expression (Ki-67 Low, 75 cases) groups. Associations between Ki-67 expression and ESCC pathological features was assessed using chi-square test. Overall survival (OS) was compared between the two groups using Kaplan–Meier survival analysis and Cox proportional hazards model. Results Median follow-up duration was 33.5 months (range 3.0–60.0 months). High Ki-67 expression was significantly associated with poor OS in patients with ESCC compared to that of the low-expression in both univariate (hazard ratios (HR) = 3.42, 95% CI [2.22–5.27], P < 0.001) and multivariate analyses (HR = 1.98, 95% CI [1.33–2.94], P < 0.001). Furthermore, high Ki-67 expression was significantly associated with an increased risk of LNM (χ2 = 11.219, P = 0.011), VI (χ2 = 6.359, P = 0.012), and PI (χ2 = 8.877, P = 0.003). Conclusions High Ki-67 protein expression is associated with poor prognosis in ESCC. Increased Ki-67 expression significantly increases the risk of LNM, VI, and PI in ESCC, and thus may serve as an indication for adjuvant therapy in ESCC management.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2167-8359
Relation: https://peerj.com/articles/19062.pdf; https://peerj.com/articles/19062/; https://doaj.org/toc/2167-8359
DOI: 10.7717/peerj.19062
Access URL: https://doaj.org/article/971228aa6e1b4bceb3ff219a243aba59
Accession Number: edsdoj.971228aa6e1b4bceb3ff219a243aba59
Database: Directory of Open Access Journals
More Details
ISSN:21678359
DOI:10.7717/peerj.19062
Published in:PeerJ
Language:English