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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 ...
Targeting signaling and apoptotic pathways involved in chemotherapeutic drug-resistance of hematopoietic cells
(2017-08-24)
A critical problem in leukemia as well as other cancer therapies is the development of chemotherapeutic drug-resistance. We have developed models of hematopoietic drug resistance that are based on expression of dominant-negative ...
The Key Roles of PTEN in T-Cell Acute Lymphoblastic Leukemia Development, Progression, and Therapeutic Response
(2019-05-06)
T-cell acute lymphoblastic leukemia (T-ALL) is an aggressive blood cancer that comprises 10–15% of pediatric and ~25% of adult ALL cases. Although the curative rates have significantly improved over the past 10 years, ...
Response of high-risk MDS to azacitidine and lenalidomide is impacted by baseline and acquired mutations in a cluster of three inositide-specific genes
(2019-02-20)
Specific myeloid-related and inositide-specific gene mutations can be linked to myelodysplastic syndromes (MDS) pathogenesis and therapy. Here, 44 higher-risk MDS patients were treated with azacitidine and lenalidomide and ...
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 ...
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 ...
Therapeutic Targeting of mTOR in T-Cell Acute Lymphoblastic Leukemia: An Update
(2018-06-26)
T-cell acute lymphoblastic leukemia (T-ALL) is an aggressive blood malignancy that arises from the clonal expansion of transformed T-cell precursors. Although T-ALL prognosis has significantly improved due to the development ...
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 ...
Drug-resistance in doxorubicin-resistant FL5.12 hematopoietic cells: elevated MDR1, drug efflux and side-population positive and decreased BCL2-family member expression
(2017-12-06)
Chemotherapeutic drug treatment can result in the emergence of drug-resistant cells. By culturing an interleukin-3 (IL-3)-dependent cell line, FL5.12 cells in the presence of the chemotherapeutic drug doxorubicin, we ...