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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, ...
Nectin like -5 overexpression correlates with the malignant phenotype in cutaneous melanoma
(2012-08-26)
NECL-5 is involved in regulating cell–cell junctions, in cooperation with cadherins, integrins and platelet-derived growth factor receptor, that are essential for intercellular communication. Its role in malignant ...
Effects of ectopic expression of NGAL on doxorubicin sensitivity
(2012-10-20)
Neutrophil gelatinase-associated lipocalin (NGAL, a.k.a Lnc2) is a member of the lipocalin family which has diverse roles including stabilizing matrix metalloproteinase-9 from auto-degradation and as siderocalins which are ...
Ras/Raf/MEK/ERK and PI3K/PTEN/Akt/mTOR cascade inhibitors: How mutations can result in therapy resistance and how to overcome resistance
(2012-10-20)
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). Targeting these pathways is often complex and can ...
Roles of neutrophil gelatinase-associated lipocalin (NGAL) in human cancer
(2014-02-01)
Cancer remains one of the major cause of death in the Western world. Although, it has been demonstrated that new therapies can improve the outcome of cancer patients, still many patients relapse after treatment. Therefore, ...
Roles of GSK-3 and microRNAs on epithelial mesenchymal transition and cancer stem cells
(2017-02)
Various signaling pathways exert critical roles in the epithelial to mesenchymal transition (EMT) and cancer stem cells (CSCs). The Wnt/beta-catenin, PI3K/PTEN/ Akt/mTORC, Ras/Raf/MEK/ERK, hedgehog (Hh), Notch and TP53 ...
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 ...
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 ...
Computational Modeling of PI3K/AKT and MAPK Signaling Pathways in Melanoma Cancer
(2016-03-25)
Background
Malignant melanoma is an aggressive tumor of the skin and seems to be resistant to current therapeutic approaches. Melanocytic transformation is thought to occur by sequential accu- mulation of genetic and ...