PMID- 25561764 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20150106 LR - 20200929 IS - 1000-9604 (Print) IS - 1993-0631 (Electronic) IS - 1000-9604 (Linking) VI - 26 IP - 6 DP - 2014 Dec TI - Expression of VEGFR2 and NRP-1 in non-small cell lung cancer and their clinical significance. PG - 669-77 LID - 10.3978/j.issn.1000-9604.2014.12.04 [doi] AB - OBJECTIVE: Vascular-targeted therapy is gradually becoming more appealing for patients with lung cancer. It is unclear whether vascular endothelial growth factor receptor 2 (VEGFR2) and neuropilin-1 (NRP-1) can be biomarkers for clinical treatment. We aimed to investigate the expression levels of VEGFR2 and NRP-1 in human non-small cell lung cancer (NSCLC) and their clinical significance by observing patient prognosis. METHODS: VEGFR2 and NRP-1 were assessed by immunohistochemistry (IHC) in 40 patients with NSCLC and in 10 patients with benign lesions of lung; kinase insert domain receptor (KDR) and NRP-1 copy number gain (CNG) was assessed by fluorescence in situ hybridization (FISH). The distributions of overall survival (OS) and progression-free survival (PFS) were estimated using the Kaplan-Meier method and compared between groups by log-rank test. RESULTS: Rates of positive immunostaining for VEGFR2 and NRP-1 were 58% and 55%, respectively. KDR and NRP-1 CNG (+) were detected in 32.5% and 30% of tumors, respectively. Levels of both VEGFR2 and NRP-1 in lung tumors were significantly different than in the control tissue (chi(2)=11.22, P=0.001; chi(2)=9.82, P=0.001, respectively); similar results were obtained using CNGs (chi(2)=4.39, P=0.036; chi(2)=3.95, P=0.046, respectively). Statistically significant correlations were observed with histological grade, clinical TNM stage and the lymph node status (P<0.05), but not age, gender or pathology type (P>0.05). VEGFR2 showed a strong correlation with NRP-1 (Rs=0.68, P=0.00); similar results were observed with KDR and NRP-1 CNG (Rs=0.32, P=0.04). Significant differences in OS and PFS were observed between the groups with higher VEGFR2 and NRP-1 and those with lower expression (P<0.05). CONCLUSIONS: According to these data, VEGFR2 and NRP-1 are highly expressed in NSCLC. We can conclude that they play a key role in NSCLC occurrence, development and metastasis and are associated with patient prognosis (P<0.05 for OS and PFS). This information will be beneficial for clinical anti-angiogenic treatment in NSCLC. FAU - Ding, Manhua AU - Ding M AD - 1 Xuzhou Medical College, Xuzhou 221006, China ; 2 Department of Oncology, Xuzhou Cancer Hospital, Xuzhou 221005, China ; 3 Department of Radiotherapy Oncology, Lianyungang First People's Hospital, Lianyungang 222002, China. FAU - Liu, Liang AU - Liu L AD - 1 Xuzhou Medical College, Xuzhou 221006, China ; 2 Department of Oncology, Xuzhou Cancer Hospital, Xuzhou 221005, China ; 3 Department of Radiotherapy Oncology, Lianyungang First People's Hospital, Lianyungang 222002, China. FAU - Hu, Chengxi AU - Hu C AD - 1 Xuzhou Medical College, Xuzhou 221006, China ; 2 Department of Oncology, Xuzhou Cancer Hospital, Xuzhou 221005, China ; 3 Department of Radiotherapy Oncology, Lianyungang First People's Hospital, Lianyungang 222002, China. FAU - Liu, Yi AU - Liu Y AD - 1 Xuzhou Medical College, Xuzhou 221006, China ; 2 Department of Oncology, Xuzhou Cancer Hospital, Xuzhou 221005, China ; 3 Department of Radiotherapy Oncology, Lianyungang First People's Hospital, Lianyungang 222002, China. FAU - Qiao, Yun AU - Qiao Y AD - 1 Xuzhou Medical College, Xuzhou 221006, China ; 2 Department of Oncology, Xuzhou Cancer Hospital, Xuzhou 221005, China ; 3 Department of Radiotherapy Oncology, Lianyungang First People's Hospital, Lianyungang 222002, China. FAU - Jiang, Xiaodong AU - Jiang X AD - 1 Xuzhou Medical College, Xuzhou 221006, China ; 2 Department of Oncology, Xuzhou Cancer Hospital, Xuzhou 221005, China ; 3 Department of Radiotherapy Oncology, Lianyungang First People's Hospital, Lianyungang 222002, China. LA - eng PT - Journal Article PL - China TA - Chin J Cancer Res JT - Chinese journal of cancer research = Chung-kuo yen cheng yen chiu JID - 9315242 PMC - PMC4279211 OTO - NOTNLM OT - Non-small cell lung cancer (NSCLC) OT - fluorescence in situ hybridization (FISH) OT - neuropilin-1 (NRP-1) OT - vascular endothelial growth factor receptor 2 (VEGFR2) EDAT- 2015/01/07 06:00 MHDA- 2015/01/07 06:01 PMCR- 2014/12/01 CRDT- 2015/01/07 06:00 PHST- 2014/10/03 00:00 [received] PHST- 2014/11/18 00:00 [accepted] PHST- 2015/01/07 06:00 [entrez] PHST- 2015/01/07 06:00 [pubmed] PHST- 2015/01/07 06:01 [medline] PHST- 2014/12/01 00:00 [pmc-release] AID - cjcr-26-06-669 [pii] AID - 10.3978/j.issn.1000-9604.2014.12.04 [doi] PST - ppublish SO - Chin J Cancer Res. 2014 Dec;26(6):669-77. doi: 10.3978/j.issn.1000-9604.2014.12.04.