Expression of HSP90AA1/HSPA8 in hepatocellular carcinoma patients with depression
Authors Xiang X, You XM, Li LQ
Received 9 December 2017
Accepted for publication 9 March 2018
Published 22 May 2018 Volume 2018:11 Pages 3013—3023
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 3
Editor who approved publication: Dr Ingrid Espinoza
Xiao Xiang,1 Xue-Mei You,1,2 Le-Qun Li1,2
1Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, People’s Republic of China; 2Guangxi Liver Cancer Diagnosis and Treatment Engineering and Technology Research Center, Nanning, People’s Republic of China
Background: Depression may influence susceptibility to cancer, and the genes and signaling pathways that may mediate this association are unclear.
Methods: Here, we used isobaric tagging for relative and absolute quantitation, 2-dimensional liquid chromatography, and mass spectrometry to compare proteins expressed in hepatocellular carcinoma in patients with or without depression.
Results: A total of 89 proteins were up-regulated and 44 were down-regulated in patients with depression. HSP90AA1 and HSPA8 were up-regulated, which correlated with elevated levels of VEGF, VEGFR2, PI3K, and AKT1 and reduced levels of caspase 9 and BAD. Disease-free survival rate was significantly lower and risk of tumor recurrence was significantly higher in patients with depression, which may reflect high HSP90AA1/HSPA8 expression.
Conclusion: These results suggest that the VEGF/VEGFR2 pathway may be associated with HCC recurrence in patients expressing high levels of HSP90AA1/HSPA8.
Keywords: heat shock protein 90AA1, heat shock protein A8, depression, hepatocellular carcinoma, VEGF
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