Elevated serum levels of vascular endothelial growth factor predict a poor prognosis of platinum-based chemotherapy in non-small cell lung cancer
Authors Zang JL, Hu Y, Xu XY, Ni J, Yan DL, Liu SW, He J, Xue J, Wu JZ, Feng JF
Received 7 October 2016
Accepted for publication 6 December 2016
Published 18 January 2017 Volume 2017:10 Pages 409—415
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Manfred Beleut
Peer reviewer comments 3
Editor who approved publication: Dr Ingrid Espinoza
Jialan Zang,1–3,* Yong Hu,1,2,* Xiaoyue Xu,1,2 Jie Ni,1,2 Dali Yan,1,2 Siwen Liu,4 Jieyu He,5 Jing Xue,4 Jianzhong Wu,4 Jifeng Feng2
1The Fourth Clinical School of Nanjing Medical University, 2Department of Chemotherapy, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, 3Department of Oncology, The First Hospital of Harbin City, Harbin, 4Center of Clinical Laboratory, Nanjing Medical University Affiliated Cancer Hospital, 5Department of Public Health, Southeast University, Nanjing, People’s Republic of China
*These authors contributed equally to this work
Aim: This study was designed to investigate the predictive and prognostic values of serum vascular endothelial growth factor (VEGF) level in non-small cell lung cancer (NSCLC) patients treated with platinum-based chemotherapy.
Methods: Patients’ peripheral blood samples were collected prior to chemotherapy and after 1 week of the third cycle of combination chemotherapy. Serum VEGF levels were evaluated through Luminex multiplex technique. Between September 2011 and August 2015, a total of 135 consecutive advanced or recurrent histologically verified NSCLC patients were enrolled in the study. Moreover, all the patients received platinum-based combination chemotherapy as a first-line treatment.
Results: No significant associations were found between pretreatment serum VEGF levels and clinical characteristics, such as sex (P=0.0975), age (P=0.2522), stage (P=0.1407), lymph node metastasis (P=0.6409), tumor location (P=0.3520), differentiated degree (P=0.5608), pathological (histological) type (P=0.4885), and response to treatment (P=0.9859). The VEGF load per platelet (VEGFPLT) levels were not correlated with sex, age, primary tumor site, and pathological type in NSCLC patients (all P>0.05). The median survival time of progression-free survival (PFS) was 6.407 and 5.29 months in the low and high groups, respectively, when using 280 pg/mL VEGF level as the cutoff point (P=0.024).
Conclusion: In conclusion, the serum VEGF levels were found to be a poor prognostic biomarker for the efficacy of platinum-based chemotherapy in terms of PFS, but it was not shown to be a suitable predictive marker for clinical response to platinum-based chemotherapy.
Keywords: non-small cell lung cancer, VEGF, progression-free survival, platinum, chemotherapy, Luminex multiplex, prognosis
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