Taken together, our results suggest for the first time that a decreased level of ING1 expression is a novel indicator of poor prognosis in advanced stages of neuroblastoma, and that ING1 may play a crucial role in genesis and progression of neuroblastoma.
The ING1 gene encodes p33(ING1), a putative tumor suppressor for neuroblastomas and breast cancers, which has been shown to cooperate with p53 in controlling cell proliferation.
Taken together, our results suggest for the first time that a decreased level of ING1 expression is a novel indicator of poor prognosis in advanced stages of neuroblastoma, and that ING1 may play a crucial role in genesis and progression of neuroblastoma.
Limited analyses of tumour cell lines show that mutation of the ING1 gene occurs in neuroblastoma cells and reduced expression was seen in some breast cancer cell lines.