These wavelet filtered images along with FLAIR and T2 weighted images have been utilized as the features to unsupervised neural network – self organizing maps (SOM) – to segment the tumor, edema, necrosis, CSF and normal tissue and grade the malignant state of the tumor.
On the other hand, although exogenous expression of AEG-1 could increase both AURKA and Akt expression levels the simultaneous use of AURKA inhibitor Tozasertib blocked AEG-1's role of up-regulation of Akt expression in ECV304 cells, suggesting that AURKA might be a key mediator of AEG-1 in regulating Akt activation, and a key effector of AEG-1 in maintaining the malignant state of AML.
This is in line with cell line studies where depletion of HSF1 reduces the malignant state of the cell regardless of ER status (Dai et al, 2007).
Malignant transformation is a multistep process that involves cooperation (i.e. synergistic interaction) of oncogenic signals to determine the malignant state of a cell (Hanahan & Weinberg, 2000).
A study of ovarian tumors showed a direct correlation between serum levels, intracellular expression of SAA4 and malignant state of the epithelial cells [ 36].
The expression levels of MCT1 in association with GLUT1 could potentially be used as determinants of the malignant state of colonic tissue.
Hence, we concluded that Stat5, but not Stat3, is required for the maintenance of the malignant state of transformed lymphoid leukaemic cells in vitro.
HK2 is overexpressed in many human cancers and has been reported to be involved in maintenance of the malignant state of tumors [ 44].
Such alterations can result either in inactivation of tumor suppressor genes (eg, TP53, BRCA1) or activation of proton-cogenes (eg, PIK3CA, MYC), both of which contribute to the malignant state of a transformed cell.
For example, aggressive and malignant state of glioblastoma multiforme (GBM), the most frequent and incurable type of the brain tumor of adults, was shown to be related to an increased activation of the Notch1 provoked by hypoxia [ 122].
