Coexpression of TLR9 and VEGF-C is associated with lymphatic metastasis in prostate cancer
作者机构：Department of UrologyThe Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510630China Department of Infertility and Sexual MedicineThe Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510630China Department of PathologyThe Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510630China
出 版 物：《Asian Journal of Andrology》 (亚洲男性学杂志（英文版）)
年 卷 期：2022年第24卷第4期
页 面：380-385页
核心收录：
学科分类：1006[医学-中西医结合] 1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 100602[医学-中西医结合临床]
基 金：supported by grants from the Natural Science Foundation of Guangdong Province(No.2018A030313261 and No.2021Al515010129) Guangdong Medical Science and Technology Research Foundation(No.A2018079) the National Natural Science Foundation of China(No.81772752).
主 题：biochemical progression-free survival coexpression lymphatic metastasis prostate cancer toll-like receptor 9 vascular endothelial growth factor C
摘 要：Prostate cancer(PCa)is one of the most frequent cancers in men,and its biomolecular targets have been extensively studied.This study aimed to analyze the expression of toll-like receptor 9(TLR9)and vascular endothelial growth factor C(VEGF-C)and the clinical value of the coexpression of TLR9 and VEGF-C in PCa.We retrospectively evaluated 55 patients with clinically localized,intermediate-risk,or high-risk PCa who underwent laparoscopic radical prostatectomy(LRP)and extended pelvic lymph node dissection(ePLND)without neoadjuvant hormonal therapy at a single institution from June 2013 to December 2016.In all 55 patients,the median number of lymph nodes(LNs)resected was 23(range:18-31),and a total of 1269 LNs were removed,of which 78 LNs were positive.Seventeen patients had positive LNs,with a positive rate of 30.9%.In addition,the immunohistochemical results in the above patients revealed that high TLR9 expression was correlated with higher Gleason score(GS)(P=0.049),increased LN metastasis(P=0.004),and more perineural invasion(PNI)(P=0.033).Moreover,VEGF-C expression was associated with GS(P=0.040),pathological stage(pT stage)(P=0.022),LN metastasis(P=0.003),and PNI(P=0.001).Furthermore,a significant positive correlation between TLR9 and VEGF-C was found(P0.001),and the TLR9/VEGF-C phenotype was associated with LN metastasis(P=0.047).Collectively,we propose that TLR9 stimulation may promote LN metastasis in PCa cells through the upregulation of VEGF-C expression,thereby affecting the prognosis of PCa patients.Therefore,these markers may serve as valuable targets for the treatment of PCa.
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