Glioblastoma (GBM) is the most common and aggressive primary malignant brain tumor with a high mortality rate. Aberrant activation of signal transducers and activators of transcription (STAT) signaling results in tumor pathogenesis and progression by regulating cell cycle, cell survival and immune response. Therapeutic targets and prognostic biomarkers within the STAT family in GBM were explored using web applications and databases. High levels of STAT1/3/5A/5B/6 and low levels of STAT4 were observed in GBM patients. GBM patients expressing high STAT1/2/3/5A/6 and low STAT4/5B levels had the worse overall survival. Among the STAT family, STAT4 and STAT6 were the most frequently mutated genes. A low to moderate correlation among members of the STAT family was observed. Additionally, the STATs were involved in activation or inhibition of cancer related pathways. Analysis of immune infiltrates showed STAT5A levels to be significantly correlated with abundance of immune cells and levels of immune gene biomarkers. Gene ontology (GO) functions and KEGG pathway analysis indicated that STAT5A is involved in immune response-regulating signaling pathway, neutrophil and lymphocyte mediated immunity, single-stranded DNA binding, cytokine-c...Continue Reading
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Cancer Stem Cells in Glioblastoma
Glioblastoma is the most common and aggressive type of brain tumor. It contains a population of tumor initiating stem cell-like cells known as cancer stem cells. Investigations are ongoing into these cancer stem cells found in these solid tumors which are highly resistance to treatment. Here is the latest research on cancer stem cells in glioblastoma.