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Anti-Cancer Agents in Medicinal Chemistry

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ISSN (Print): 1871-5206
ISSN (Online): 1875-5992

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General Research Article

Elevated Expression of A-Raf and FA2H in Hepatocellular Carcinoma is Associated with Lipid Metabolism Dysregulation and Cancer Progression

Author(s): Maryam Ranjpour, Saima Wajid and Swatantra K. Jain*

Volume 19, Issue 2, 2019

Page: [236 - 247] Pages: 12

DOI: 10.2174/1871520618666181015142810

Price: $65

Abstract

Background: Identification of events leading to hepatocellular carcinoma (HCC) progression is essential for understanding its pathophysiology. The aims of this study are to identify and characterize differentially expressed proteins in serum of HCC-bearing rats and the corresponding controls during cancer initiation, progression and tumorigenesis.

Methods: Chemical carcinogens, N-Nitrosodiethylamine and 2-aminoacetylfluorine are administered to induce HCC to male Wistar rats. The 2D-Electrophoresis and PD-Quest analyses are performed to identify several differentially expressed proteins in serum of HCC-bearing animals. These proteins are further characterized by MALDI-TOF-MS/MS analyses. Using pathwaylinker a HCC-specific network is analyzed among the MALDITOF- MS/MS characterized proteins and their interactors.

Results: Carcinogen administration caused inflammation leading to liver injury and HCC development. Liver inflammation was confirmed by increase in the levels of TNF-α and IL-6 in carcinogen treated rats. We report significant increase in expression of two differentially expressed proteins, namely, A-Raf and Fatty Acid 2- Hydroxylase (FA2H), at early stage of HCC initiation, during its progression and at tumor stage. Real-time PCR analysis of mRNA for these proteins confirmed up-regulation of their transcripts. Further, we validated our experimental data with sera of clinically confirmed liver cancer patients.

Conclusion: The study suggests that FA2H and A-Raf play a major role in the progression of HCC.

Keywords: Cancer, initiation, tumors, western blot, HCC-specific network, pathwaylinker.

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