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Angiogenic and anti-angiogenic factor gene transcript level quantitation by quantitative real time PCR in patients with hepatocellular carcinoma

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Abstract

Tumor angiogenesis, a major requirement for tumor growth and metastasis, is regulated by pro- and anti-angiogenic factors. The aim of this study was to quantify the expression of angiogenic (VEGF, HIF-1α, Angiopiotein-2) and anti-angiogenic (endostatin, angiostatin and Thrombospondin-1) factors and to discern their clinical relevance. A total 90 patients (67 HCC, 9 cirrhosis and 14 chronic hepatitis) were enrolled in the study. Tissue transcript levels of angiogenic (VEGF, HIF-1α, Ang-2) and anti-angiogenic (endostatin, angiostatin and TSP-1) factors were analyzed by quantitative real time-polymerase chain reaction (qRT-PCR) in the tissue samples. The tissue transcript levels of VEGF, HIF-1α and endostatin were found to be significantly higher in HCC in comparison to cirrhosis and chronic hepatitis. Although Ang-2, angiostatin and TSP-1 tissue transcript levels were higher in HCC group than the others groups but the difference was not statistically significant. In univariate analysis both VEGF and HIF-1α were found to be associated with poor survival of HCC patients. Multivariate analysis by the cox proportional hazard model revealed only VEGF as an independent factor predicting poor survival of the HCC patients. Angiogenic and anti-angiogenic factors are all highly expressed in HCC patients. Upregulation of tissue anti-angiogenic factors indicates the urgency for the alternative of anti-angiogenic therapies.

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Authors and Affiliations

  1. Department of Hepatology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India

    Bal Krishan Sharma, Shweta Kapil, Bhupesh Singla, Yogesh Kumar Chawla, Nitin Saini, Ajay Duseja & Radha Krishan Dhiman

  2. Department of Cytopathology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India

    Radhika Srinivasan

  3. Department of Experimental Medicine and Biotechnology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India

    Anuradha Chakraborti

  4. Department of Histopathology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India

    Ashim Das

  5. Department of Radiodiagnosis, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India

    Naveen Kalra

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  1. Bal Krishan Sharma
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Correspondence to Yogesh Kumar Chawla.

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Sharma, B.K., Srinivasan, R., Kapil, S. et al. Angiogenic and anti-angiogenic factor gene transcript level quantitation by quantitative real time PCR in patients with hepatocellular carcinoma. Mol Biol Rep 40, 5843–5852 (2013). https://doi.org/10.1007/s11033-013-2690-4

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  • DOI: https://doi.org/10.1007/s11033-013-2690-4

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