PMID: 26320510Sep 1, 2015Paper

Predictive Significance of VEGF and HIF-1α Expression in Patients with Metastatic Colorectal Cancer Receiving Chemotherapy Combinations with Bevacizumab

Asian Pacific Journal of Cancer Prevention : APJCP
Veli BerkMetin Ozkan

Abstract

There is no suggested molecular indicator for the determination of which patients will benefit from anti-angiogenetic treatment in metastatic colorectal cancers. In this study, VEGF and HIF-1α expression and their clinical significance were studied in tumor tissues of patients with colorectal cancer receiving bevacizumab-based treatment. VEGF and HIF-1α were assessed by immunohistochemistry in the primary tumors of 53 metastatic colorectal cancer patients receiving chemotherapy in combination with first line bevacizumab. The clinical benefit rate in the low-VEGF expression group was 38%, while it was 62% in the high expression group. While the median progression-free survival (PFS) was 10 months in the high-VEGF expression group, it was 8 months in the low-VEGF expression group (p = 0.009). The median overall survival (OS) was found to be 26 months vs 15 months. Thus, when VEGF was strongly expressed it was in favor of that group and the difference was statistically significant (p = 0.03). High VEGF expression rate was an independent factor that correlated with OS or PFS (p=0.016 and 0.009, respectively). The data showed that VEGF may have predictive value for determining the treatment of CRC.

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Jul 11, 2019·Diagnostic Cytopathology·Kelsey E McHughJordan P Reynolds
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