Expression and regulatory effects on cancer cell behavior of NELL1 and NELL2 in human renal cell carcinoma

Cancer Science
Ritsuko NakamuraAkishi Ooi

Abstract

Neural epidermal growth factor-like like (NELL) 1 and 2 constitute a family of multimeric and multimodular extracellular glycoproteins. Although the osteogenic effects of NELL1 and functions of NELL2 in neural development have been reported, their expression and functions in cancer are largely unknown. In this study, we examined expression of NELL1 and NELL2 in renal cell carcinoma (RCC) using clinical specimens and cell lines. We show that, whereas NELL1 and NELL2 proteins are strongly expressed in renal tubules in non-cancerous areas of RCC specimens, their expression is significantly downregulated in cancerous areas. Silencing of NELL1 and NELL2 mRNA expression was also detected in RCC cell lines. Analysis of NELL1/2 promoter methylation status indicated that the CpG islands in the NELL1 and NELL2 genes are hypermethylated in RCC cell lines. NELL1 and NELL2 bind to RCC cells, suggesting that these cells express a receptor for NELL1 and NELL2 that can transduce signals. Furthermore, we found that both NELL1 and NELL2 inhibit RCC cell migration, and NELL1 further inhibits RCC cell adhesion. These results suggest that silencing of NELL gene expression by promoter hypermethylation plays roles in RCC progression by affecting canc...Continue Reading

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Citations

Apr 6, 2016·Journal of Orthopaedics·Jia ShenAaron W James
Feb 2, 2018·Journal of Cellular Biochemistry·Huaxiang ZhaoFeng Chen
Oct 16, 2019·Journal of Dental Research·C LiC Soo
Apr 15, 2019·Journal of Molecular Neuroscience : MN·Harish JoshiChanabasayya Vastrad
Mar 4, 2021·Pathology International·Ritsuko NakamuraAkishi Ooi
Jul 11, 2021·Journal of the Formosan Medical Association = Taiwan Yi Zhi·Shan-Shan LiYong Dai
Aug 28, 2021·International Journal of Molecular Sciences·Axelle WilmerdingMarie-Claire Delfini

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Methods Mentioned

BETA
PCR
Assay
methylation profiling

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