Journal article

EGFRvIII Promotes Cell Survival during Endoplasmic Reticulum Stress through a Reticulocalbin 1-Dependent Mechanism

Juliana Gomez, Zammam Areeb, Sarah F Stuart, Hong PT Nguyen, Lucia Paradiso, Ahmad Zulkifli, Sonakshi Madan, Vijay Rajagopal, Magdalene K Montgomery, Hui K Gan, Andrew M Scott, Jordan Jones, Andrew H Kaye, Andrew P Morokoff, Rodney B Luwor

Cancers | MDPI | Published : 2021

Abstract

Reticulocalbin 1 (RCN1) is an endoplasmic reticulum (ER)-residing protein, involved in promoting cell survival during pathophysiological conditions that lead to ER stress. However, the key upstream receptor tyrosine kinase that regulates RCN1 expression and its potential role in cell survival in the glioblastoma setting have not been determined. Here, we demonstrate that RCN1 expression significantly correlates with poor glioblastoma patient survival. We also demonstrate that glioblastoma cells with expression of EGFRvIII receptor also have high RCN1 expression. Over-expression of wildtype EGFR also correlated with high RCN1 expression, suggesting that EGFR and EGFRvIII regulate RCN1 express..

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Grants

Awarded by Victorian Cancer Agency Mid-Career Research Fellowship


Funding Acknowledgements

R.B.L. is a recipient of the Victorian Cancer Agency Mid-Career Research Fellowship (MCRF15017).