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Mutations and deregulation of Ras/Raf/MEK/ERK and PI3K/PTEN/Akt/mtor cascades which alter therapy response
(2012-09-20)
The Ras/Raf/MEK/ERK and PI3K/PTEN/Akt/mTOR cascades are often activated by genetic alterations in upstream signaling molecules such as receptor tyrosine kinases (RTK). Certain components of these pathways, RAS, NF1, BRAF, ...
Insulin/IGF1-PI3K-dependent nucleolar localization of a glycolytic enzyme – phosphoglycerate mutase 2, is necessary for proper structure of nucleolus and RNA synthesis
(2015)
Phosphoglycerate mutase (PGAM), a conserved, glycolytic enzyme has been
found in nucleoli of cancer cells. Here, we present evidence that accumulation of
PGAM in the nucleolus is a universal phenomenon concerning not ...
Involvement of Akt-1 and mTOR in sensitivity of breast cancer to targeted therapy
(2011-07-01)
Elucidating the response of breast cancer cells to chemotherapeutic and hormonal based drugs is clearly important as these are frequently used therapeutic approaches. A signaling pathway often involved in chemo- and ...
Ras/Raf/MEK/ERK and PI3K/PTEN/Akt/mTOR inhibitors: Rationale and importance to inhibiting these pathways in human health
(2011-03-11)
The Ras/Raf/MEK/ERK and PI3K/PTEN/Akt/mTOR cascades are often activated by genetic alterations in upstream signaling molecules such as receptor tyrosine kinases (RTK). Integral components of these pathways, Ras, B-Raf, ...
Cytotoxic activity of the novel small molecule AKT inhibitor SC66 in hepatocellular carcinoma cells
(2014)
Hepatocellular carcinoma (HCC) is characterized by limited response to current
drug therapies. Here, we report that SC66, a novel AKT inhibitor, reduced cell viability
in a dose- and time-dependent manner, inhibited ...
Dimeric and tetrameric forms of muscle fructose-1,6- bisphosphatase play different roles in the cell
(2017-12-15)
Muscle fructose 1,6-bisphosphatase (FBP2), besides being a regulatory enzyme of glyconeogenesis also protects mitochondria against calcium stress and plays a key role in regulation of the cell cycle, promoting cardiomyocytes ...
Neuron-derived transthyretin modulates astrocytic glycolysis in hormone-independent manner
(2017-11-20)
It has been shown that neurons alter the expression of astrocytic metabolic enzymes by secretion of until now unknown molecule(s) into extracellular fluid. Here, we present evidence that neuron-derived transthyretin (TTR) ...
PI3K isoform inhibition associated with anti Bcr-Abl drugs shows in vitro increased anti-leukemic activity in Philadelphia chromosome-positive B-acute lymphoblastic leukemia cell lines
(2017-02-20)
B-acute lymphoblastic leukemia (B-ALL) is a malignant disorder characterized by the abnormal proliferation of B-cell progenitors. Philadelphia chromosome-positive (Ph+) B-ALL is a subtype that expresses the Bcr-Abl fusion ...
Analysis of the B-RAFV600E mutation in cutaneous melanoma patients with occupational sun exposure
(2014)
Sun-exposure is one of the risk factors associated with the development of a cutaneous neoplasm. In melanoma, the Ras-Raf-MEK-ERK (MAPK) signaling pathway is constitutively activated through multiple mechanisms, including ...
Computational identification of microRNAs associated to both epithelial to mesenchymal transition and NGAL/MMP-9 pathways in bladder cancer
(2016-11-08)
Bladder cancer is one of the leading cancer of the urinary tract. It is often diagnosed at advanced stage of the disease. To date, no specific and effective early detection biomarkers are available. Cancer development and ...