Sung PJ, Boulos N, Tilby MJ, Andrews WD, Newbold RF, Tweddle DA, Lunec J. Identification and characterisation of STMN4 and ROBO2 gene involvement in neuroblastoma cell differentiation.
Cancer Lett 2012;
328:168-75. [PMID:
22906418 DOI:
10.1016/j.canlet.2012.08.015]
[Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Revised: 07/18/2012] [Accepted: 08/10/2012] [Indexed: 12/18/2022]
Abstract
To better understand neuroblastoma differentiation, we used microarray analysis to identify common gene expression changes from three differentiation models. This revealed STMN4 and ROBO2 to be consistently up-regulated in differentiated neuroblastoma cells induced by chromosome 1 transfer, MYCN knockdown, and 9-cis retinoic acid (9cRA). Furthermore, stable expression of transfected STMN4 or ROBO2 induced differentiation in IMR-32 cells. STMN4 and ROBO2 expression also increased in other 9cRA-induced differentiated neuroblastoma cell lines. Of clinical importance is that neuroblastoma patients with higher tumour mRNA expression of STMN4 and ROBO2 had better progression-free survival. This study highlights the importance of STMN4 and ROBO2 during neuroblastoma differentiation.
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