Department of Medical Oncology Translational Oncology Unit AOU Ospedali Riuniti, Università Politecnica delle Marche, Ancona, Italy.
Int J Cancer. 2014 Sep 1;135(5):1247-56. doi: 10.1002/ijc.28772. Epub 2014 Feb 20.
Although new treatment modalities changed the global approach to hepatocellular carcinoma (HCC), this disease still represents a medical challenge. Currently, the therapeutic stronghold is sorafenib, a tyrosine kinase inhibitor (TKI) directed against the vascular endothelial growth factor (VEGF) family. Previous observations suggested that polymorphisms of VEGF and its receptor (VEGFR) genes may regulate angiogenesis and lymphangiogenesis and thus tumour growth control. The aim of our study was to evaluate the role of VEGF and VEGFR polymorphisms in determining the clinical outcome of HCC patients receiving sorafenib. From a multicentre experience 148 samples (tumour or blood samples) of HCC patients receiving sorafenib were tested for VEGF-A, VEGF-C and VEGFR-1,2,3 single nucleotide polymorphisms (SNPs). Patients' progression-free survival (PFS) and overall survival (OS) were analysed. At univariate analysis VEGF-A alleles C of rs25648, T of rs833061, C of rs699947, C of rs2010963, VEGF-C alleles T of rs4604006, G of rs664393, VEGFR-2 alleles C of rs2071559, C of rs2305948 were significant predictors of PFS and OS. At multivariate analysis rs2010963, rs4604006 and BCLC (Barcelona Clinic Liver Cancer) stage resulted to be independent factors influencing PFS and OS. Once prospectively validated, the analysis of VEGF and VEGFR SNPs may represent a clinical tool to better identify HCC patients more likely to benefit from sorafenib. On the other hand, the availability of more accurate predictive factors could help avoiding unnecessary toxicities to potentially resistant patients who may be optimal candidates for different treatments interfering with other tumour molecular pathways.
尽管新的治疗方法改变了全球对肝细胞癌(HCC)的治疗方法,但这种疾病仍然是一个医学挑战。目前,治疗的重点是索拉非尼,一种针对血管内皮生长因子(VEGF)家族的酪氨酸激酶抑制剂(TKI)。先前的观察结果表明,VEGF 和其受体(VEGFR)基因的多态性可能调节血管生成和淋巴管生成,从而控制肿瘤生长。我们的研究目的是评估 VEGF 和 VEGFR 多态性在确定接受索拉非尼治疗的 HCC 患者临床结局中的作用。从一项多中心经验中,对 148 例接受索拉非尼治疗的 HCC 患者的肿瘤或血液样本进行了 VEGF-A、VEGF-C 和 VEGFR-1、2、3 单核苷酸多态性(SNP)检测。分析了患者的无进展生存期(PFS)和总生存期(OS)。单因素分析中,VEGF-A 等位基因 rs25648 的 C、rs833061 的 T、rs699947 的 C、rs2010963 的 C、VEGF-C 等位基因 rs4604006 的 T、rs664393 的 G、VEGFR-2 等位基因 rs2071559 的 C、rs2305948 的 C 是 PFS 和 OS 的显著预测因子。多因素分析中,rs2010963、rs4604006 和 BCLC(巴塞罗那临床肝癌)分期是影响 PFS 和 OS 的独立因素。一旦前瞻性验证,VEGF 和 VEGFR SNP 的分析可能成为一种临床工具,以更好地识别更有可能从索拉非尼治疗中获益的 HCC 患者。另一方面,更准确的预测因素的出现可能有助于避免不必要的毒性作用,从而避免潜在的耐药患者,这些患者可能是不同治疗方法的最佳候选者,这些治疗方法干扰其他肿瘤分子途径。
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