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. 2016 Apr;48(2):518-26.
doi: 10.4143/crt.2015.093. Epub 2015 Jul 14.

VEGF and Ki-67 Overexpression in Predicting Poor Overall Survival in Adenoid Cystic Carcinoma

Seongyeol Park  1 , Soo Jeong Nam  2   3   4 , Bhumsuk Keam  1   5 , Tae Min Kim  1   5 , Yoon Kyung Jeon  2 , Se-Hoon Lee  1   5 , J Hun Hah  6 , Tack-Kyun Kwon  6 , Dong-Wan Kim  1   5 , Myung-Whun Sung  6 , Dae Seog Heo  1   5 , Yung-Jue Bang  1   5
Affiliations

VEGF and Ki-67 Overexpression in Predicting Poor Overall Survival in Adenoid Cystic Carcinoma

Seongyeol Park et al. Cancer Res Treat. 2016 Apr.

Abstract

Purpose: The purpose of this study was to evaluate potential prognostic factors in patients with adenoid cystic carcinoma (ACC).

Materials and methods: A total of 68 patients who underwent curative surgery and had available tissue were enrolled in this study. Their medical records and pathologic slides were reviewed and immunohistochemistry for basic fibroblast growth factor, fibroblast growth factor receptor (FGFR) 2, FGFR3, c-kit, Myb proto-oncogene protein, platelet-derived growth factor receptor beta, vascular endothelial growth factor (VEGF), and Ki-67 was performed. Univariate and multivariate analysis was performed for determination of disease-free survival (DFS) and overall survival (OS).

Results: In univariate analyses, primary site of nasal cavity and paranasal sinus (p=0.022) and Ki-67 expression of more than 7% (p=0.001) were statistically significant factors for poor DFS. Regarding OS, perineural invasion (p=0.032), high expression of VEGF (p=0.033), and high expression of Ki-67 (p=0.007) were poor prognostic factors. In multivariate analyses, primary site of nasal cavity and paranasal sinus (p=0.028) and high expression of Ki-67 (p=0.004) were independent risk factors for poor DFS, and high expression of VEGF (p=0.011) and Ki-67 (p=0.011) showed independent association with poor OS.

Conclusion: High expression of VEGF and Ki-67 were independent poor prognostic factors for OS in ACC.

Keywords: Adenoid cystic carcinoma; Immunohistochemistry; Ki-67; Prognosis; Vascular endothelial growth factor.

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Conflict of interest statement

Conflict of interest relevant to this article was not reported.

Figures

Fig. 1.
Fig. 1.
Immunohistochemical staining of adenoid cystic carcinoma. (A) Low expression of vascular endothelial growth factor (VEGF). (B) High expression of VEGF. (C) Low expression of Ki-67. (D) High expression of Ki-67 (A-D, ×200).
Fig. 2.
Fig. 2.
Kaplan-Meier curve for disease-free survival by vascular endothelial growth factor expression (A) and Ki-67 expression (B). Comparisons were made using the log-rank test.
Fig. 3.
Fig. 3.
Kaplan-Meier curve for overall survival by vascular endothelial growth factor (VEGF) expression (A), Ki-67 expression (B), and VEGF and/or Ki-67 expression (C). Comparisons were made using the log-rank test.
See this image and copyright information in PMC

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