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Yong Li and colleagues identify a feedforward loop in which miR-301A expression in pancreatic adenocarcinoma relieves suppression of NF-κB and is in turn transactivated by NF-κB.
Engineered RNAs are used to reprogramme the Wnt and nuclear factor-κB signalling pathways, which could be used therapeutically to control tumour cell signalling.
Head and neck squamous cell carcinoma (HNSCC) is a heterogeneous disease that often recurs, prompting the field cancerization hypothesis. This Review discusses the molecular pathology of HNSCC and how its heterogeneity can be used to classify the disease and provide a model of HNSCC development.
The Pim family of kinases actively collaborate with MYC in driving tumorigenesis. However, in several cancers the expression levels of PIMs can correlate with favourable prognostic outcome. This Review analyses the physiological and oncogenic activities of Pim kinases and their synergistic marriage with MYC, for better or for worse.
The protein tyrosine phosphatase (Ptp) family dephosphorylates target proteins and counters the activities of protein tyrosine kinases. Accumulating evidence indicates that some PTPs have an important role in the inhibition or control of growth, whereas some PTPs exert oncogenic functions. This Review discusses the relevance of PTPs to cancer biology and their potential as therapeutic targets.
Genetic analyses of the normal development of the nematodeCaenorhabditis elegans have revealed evolutionarily conserved mechanisms through which individual cells establish their fates, and how they make and execute the decision to survive or undergo programmed cell death. Mammalian counterparts of these pathways are co-opted by malignant cells, and studies in C.elegansare helping to identify new anticancer drugs.
Inherent difficulties with blocking many desirable targets using conventional approaches have prompted many to consider using RNA interference (RNAi) as a therapeutic approach. This Review explores current challenges to the development of synthetic RNAi-based therapies and considers new approaches to circumvent biological barriers.
The survival of genetically abnormal carcinoma progenitor cells in ductal carcinomain situlesions could be driven by the hypoxic, nutrient-deprived microenvironment. Understanding the potential survival mechanisms, such as autophagy, could provide new strategies for arresting invasion at the pre-malignant stage.
