in this work, different ethyl 2,4-dioxo-4-arylbutanoate derivatives were prepared and evaluated for their src kinase inhibitory activity. for this purpose, the appropriate substituted acetophenone derivatives reacted with diethyl oxalate in the presence of sodium ethoxide in dried ethanol to give the corresponding products. all compounds showed moderate activities comparing with staurosporine a...

Abstract Vascular endothelial (VE)-cadherin in adherens junctions is an essential component of the vascular barrier, critical for tissue homeostasis and implicated diseases such as cancer retinopathies. Inhibitors Src cytoplasmic tyrosine kinase have been applied to suppress VE-cadherin phosphorylation prevent excessive leakage, edema high interstitial pressure. Here we show that Src-related Ye...

Src and Src-family protein-tyrosine kinases are regulatory proteins that play key roles in cell differentiation, motility, proliferation, and survival. The initially described phosphorylation sites of Src include an activating phosphotyrosine 416 that results from autophosphorylation, and an inhibiting phosphotyrosine 527 that results from phosphorylation by C-terminal Src kinase (Csk) and Csk ...

Thapsigargin is a non-phorbol ester-type tumor promoter that elevates the intracellular Ca2+ (Ca(i)2+) levels by blocking the microsomal Ca2+ ATPase. At present, the consequence of this Ca(i)2+ increase and the nature of the tumorigenicity of thapsigargin still remain to be elucidated. Previously, we demonstrated that thapsigargin activates the mitogen-activated protein (MAP) kinase via Ca(i)2+...

Deletion of the c-src gene impairs osteoclast bone resorbing activity, causing osteopetrosis. Although it has been concluded that restoring only the Src adaptor function at least partly rescues the cell attachment and skeletal phenotypes, the contribution of Src kinase activity remains controversial. Src forms a complex with Pyk2 and Cbl after adhesion-induced stimulation of alpha(V)beta(3) int...

Thapsigargin is a non-phorbol ester-type tumor promoter that elevates the intracellular Ca2@ (Ca@2') levels by blocking the microsomal Ca2@ ATPase. At present, the consequence of this Ca@2@ increase and the nature of the tumorigenicity of thapsigargin still remain to be elucidated. Previ ously, we demonstrated that thapsigargin activates the mitogen-activated protein (MAP) kinase via Ca@2' but ...

Thapsigargin is a non-phorbol ester-type tumor promoter that elevates the intracellular Ca2@ (Ca@2') levels by blocking the microsomal Ca2@ ATPase. At present, the consequence of this Ca@2@ increase and the nature of the tumorigenicity of thapsigargin still remain to be elucidated. Previ ously, we demonstrated that thapsigargin activates the mitogen-activated protein (MAP) kinase via Ca@2' but ...

triple negative breast cancers (tnbcs) are associated with aggressive course, higher rates of visceral and central nervous system metastases and lower survival rate than hormone receptor positive. once metastasis has occurred, a median survival was approximately one year. currently, chemotherapy in tnbc is similar to other her2- negative breast cancers but in the near future, it will revolution...

Src tyrosine kinase expression and activity are elevated during colon cancer progression. How this contributes to the malignant phenotype is not fully understood. We show that in KM12C colon carcinoma cells, expression of kinase-deficient Src proteins (SrcMF and Src251) does not alter cell growth. Src kinase activity is required for turnover of cell-matrix adhesions and, in particular, the Src-...

The tubulin polymerization and Src kinase signaling inhibitor tirbanibulin is being investigated as a topical treatment for actinic keratosis, precursor of squamous-cell carcinoma.