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. 2017 Jan;13(1):463-468.
doi: 10.3892/ol.2016.5408. Epub 2016 Nov 22.

Association of leptin, visfatin, apelin, resistin and adiponectin with clear cell renal cell carcinoma

Hai-Ping Zhang  1 , Jian Zou  2 , Zhuo-Qun Xu  3 , Jun Ruan  3 , Shu-Dong Yang  4 , Ying Yin  2 , Hui-Jun Mu  2
Affiliations

Association of leptin, visfatin, apelin, resistin and adiponectin with clear cell renal cell carcinoma

Hai-Ping Zhang et al. Oncol Lett. 2017 Jan.

Abstract

Although an association between obesity and the occurrence of renal cell carcinoma (RCC) has been identified, the mechanism by which obesity functions to increase this risk of cancer remains unclear. Leptin, visfatin, apelin, resistin and adiponectin are peptide hormones secreted by adipocytes; it is considered that these may affect RCC development by exerting effects on proliferation, cell growth and inflammation. The aim of the present study was to investigate the association between the aforementioned adipokine genes and clear cell RCC (CC-RCC). The GSE6344 dataset was downloaded from the Gene Expression Omnibus database, and the relative expression levels of the adipokine genes were analyzed. To verify the results of the mRNA microarray, 77 paired samples of CC-RCC and corresponding adjacent normal tissue were allocated into two groups. The extraction of total RNA was conducted, and the mRNA expression of adipokine genes was analyzed using reverse transcription-quantitative polymerase chain reaction (RT-qPCR). The data from the GSE6344 dataset indicated that the expression of visfatin and apelin was upregulated (P<0.0001 and P<0.01, respectively), and adiponectin was downregulated (P<0.001) in the CC-RCC tissues compared with the adjacent normal tissues. The data from RT-qPCR demonstrated that visfatin and resistin gene expression was increased (P<0.01 and P<0.05, respectively) in the CC-RCC tissues. Furthermore, the mRNA expression level of leptin and adiponectin in the adjacent normal tissue was higher than those in the cancer tissue (P<0.01). The current study verifies that visfatin and adiponectin are associated with an increased risk of CC-RCC, which presents further insights into the molecular mechanisms of CC-RCC tumorigenesis.

Keywords: adiponectin; apelin; leptin; renal cell carcinoma; resistin; visfatin.

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Figures

Figure 1.
Figure 1.
Analysis of (A) leptin, (B) visfatin, (C) apelin, (D) resistin and (E) adiponectin mRNA expression profiles in CC-RCC and adjacent normal tissues in the GSE6344 dataset. CC-RCC, clear cell renal cell carcinoma.
See this image and copyright information in PMC

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