PMID- 29048643 OWN - NLM STAT- MEDLINE DCOM- 20180702 LR - 20201209 IS - 1791-2431 (Electronic) IS - 1021-335X (Linking) VI - 38 IP - 5 DP - 2017 Nov TI - Novel transduction of nutrient stress to Notch pathway by RasGRP3 promotes malignant aggressiveness in human esophageal squamous cell carcinoma. PG - 2975-2984 LID - 10.3892/or.2017.5996 [doi] AB - In the process of enlarging of tumors, the dissolving tissue structures and remodeling endothelial cells for restoring gas exchange and nutritional support, further facilitate tumor cell invasion and metastasis. Activation of Ras plays a critical role in the development of esophageal squamous cell carcinoma (ESCC), but the underlying mechanisms remain poorly understood. We therefore investigated whether Ras guanyl-releasing protein 3 (RasGRP3), a Ras activator, could promote metastasis by inducing vascular regeneration and further epithelial-mesenchymal transition under nutrient stress (NS). In the present study, we explored that the accumulation of RasGRP3 regulated vascular endothelial growth factor-A production, co-stimulated Notch pathway with high expression of Notch intracellular domain (NICD) and Hes1. Moreover, ESCC cells under NS increased the expression of vimentin, Snail, Slug and MMP9 proteins; while inhibition of Notch activation by DAPT (a gamma-secretase inhibitor) or RasGRP3-targeted RNA interference prevented from the effect. In conclusion, these findings provide a new insight into the upregulation of RasGRP3 involved in Notch pathway activation in the development of ESCC, especially under nutrient deprivation. FAU - Hu, Ge AU - Hu G AD - Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China. FAU - Zhou, Yuepeng AU - Zhou Y AD - Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China. FAU - Zhu, Yu AU - Zhu Y AD - Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China. FAU - Zhou, Ling AU - Zhou L AD - Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China. FAU - Ling, Rui AU - Ling R AD - Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China. FAU - Wu, Dan AU - Wu D AD - Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China. FAU - Mi, Lei AU - Mi L AD - Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China. FAU - Wang, Xuefeng AU - Wang X AD - Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China. FAU - Dai, Dongfang AU - Dai D AD - Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China. FAU - Mao, Chaoming AU - Mao C AD - Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China. FAU - Chen, Deyu AU - Chen D AD - Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China. LA - eng PT - Journal Article DEP - 20170925 PL - Greece TA - Oncol Rep JT - Oncology reports JID - 9422756 RN - 0 (Guanine Nucleotide Exchange Factors) RN - 0 (Neoplasm Proteins) RN - 0 (RASGRP3 protein, human) RN - 0 (Receptors, Notch) RN - 0 (VEGFA protein, human) RN - 0 (Vascular Endothelial Growth Factor A) RN - 0 (ras Guanine Nucleotide Exchange Factors) SB - IM MH - Adult MH - Aged MH - Carcinoma, Squamous Cell/*genetics/metabolism/pathology MH - Cell Line, Tumor MH - Cell Movement/genetics MH - Epithelial-Mesenchymal Transition/*genetics MH - Esophageal Neoplasms/*genetics/metabolism/pathology MH - Esophageal Squamous Cell Carcinoma MH - Female MH - Food/adverse effects MH - Gene Expression Regulation, Neoplastic/genetics MH - Guanine Nucleotide Exchange Factors/*genetics MH - Humans MH - Male MH - Middle Aged MH - Neoplasm Invasiveness/genetics MH - Neoplasm Metastasis MH - Neoplasm Proteins/genetics MH - Receptors, Notch/*genetics MH - Signal Transduction/genetics MH - Vascular Endothelial Growth Factor A MH - ras Guanine Nucleotide Exchange Factors EDAT- 2017/10/20 06:00 MHDA- 2018/07/03 06:00 CRDT- 2017/10/20 06:00 PHST- 2017/04/06 00:00 [received] PHST- 2017/08/28 00:00 [accepted] PHST- 2017/10/20 06:00 [pubmed] PHST- 2018/07/03 06:00 [medline] PHST- 2017/10/20 06:00 [entrez] AID - 10.3892/or.2017.5996 [doi] PST - ppublish SO - Oncol Rep. 2017 Nov;38(5):2975-2984. doi: 10.3892/or.2017.5996. Epub 2017 Sep 25.