Involvement of Growth Factor Receptor and Nonreceptor Protein Tyrosine Kinases in Endothelin-1 and Angiotensin II-Induced Signaling Pathways in the Cardiovascular System

2011 ◽  
pp. 315-333 ◽  
Author(s):  
George Vardatsikos ◽  
Ashok K. Srivastava
Keyword(s):  
Angiotensin Ii ◽  
Growth Factor ◽  
Cardiovascular System ◽  
Signaling Pathways ◽  
Tyrosine Kinases ◽  
Growth Factor Receptor ◽  
Protein Tyrosine Kinases ◽  
Protein Tyrosine ◽  
Endothelin 1 ◽  
Nonreceptor Protein Tyrosine Kinases

scholarly journals Kinome Array Profiling of Patient-Derived Pancreatic Ductal Adenocarcinoma Identifies Differentially Active Protein Tyrosine Kinases

2020 ◽  
Vol 21 (22) ◽  
pp. 8679 ◽  
Author(s):  
Justin F. Creeden ◽  
Khaled Alganem ◽  
Ali S. Imami ◽  
F. Charles Brunicardi ◽  
Shi-He Liu ◽  
...  
Keyword(s):  
Pancreatic Cancer ◽  
Growth Factor ◽  
Tyrosine Kinase ◽  
Pancreatic Ductal Adenocarcinoma ◽  
Tyrosine Kinases ◽  
Growth Factor Receptor ◽  
Protein Tyrosine Kinases ◽  
Ductal Adenocarcinoma ◽  
Active Protein ◽  
Protein Tyrosine

Pancreatic cancer remains one of the most difficult malignancies to treat. Minimal improvements in patient outcomes and persistently abysmal patient survival rates underscore the great need for new treatment strategies. Currently, there is intense interest in therapeutic strategies that target tyrosine protein kinases. Here, we employed kinome arrays and bioinformatic pipelines capable of identifying differentially active protein tyrosine kinases in different patient-derived pancreatic ductal adenocarcinoma (PDAC) cell lines and wild-type pancreatic tissue to investigate the unique kinomic networks of PDAC samples and posit novel target kinases for pancreatic cancer therapy. Consistent with previously described reports, the resultant peptide-based kinome array profiles identified increased protein tyrosine kinase activity in pancreatic cancer for the following kinases: epidermal growth factor receptor (EGFR), fms related receptor tyrosine kinase 4/vascular endothelial growth factor receptor 3 (FLT4/VEGFR-3), insulin receptor (INSR), ephrin receptor A2 (EPHA2), platelet derived growth factor receptor alpha (PDGFRA), SRC proto-oncogene kinase (SRC), and tyrosine kinase non receptor 2 (TNK2). Furthermore, this study identified increased activity for protein tyrosine kinases with limited prior evidence of differential activity in pancreatic cancer. These protein tyrosine kinases include B lymphoid kinase (BLK), Fyn-related kinase (FRK), Lck/Yes-related novel kinase (LYN), FYN proto-oncogene kinase (FYN), lymphocyte cell-specific kinase (LCK), tec protein kinase (TEC), hemopoietic cell kinase (HCK), ABL proto-oncogene 2 kinase (ABL2), discoidin domain receptor 1 kinase (DDR1), and ephrin receptor A8 kinase (EPHA8). Together, these results support the utility of peptide array kinomic analyses in the generation of potential candidate kinases for future pancreatic cancer therapeutic development.

scholarly journals Expression and characterization of the p85 subunit of the phosphatidylinositol 3-kinase complex and a related p85β protein by using the baculovirus expression system

1992 ◽  
Vol 288 (2) ◽  
pp. 395-405 ◽  
Author(s):  
I Gout ◽  
R Dhand ◽  
G Panayotou ◽  
M J Fry ◽  
I Hiles ◽  
...  
Keyword(s):  
Growth Factor ◽  
Tyrosine Kinases ◽  
Growth Regulation ◽  
Kinase Activity ◽  
Insect Cells ◽  
Expression System ◽  
Protein Tyrosine Kinases ◽  
Protein Tyrosine ◽  
T Complex

PtdIns 3-kinase associates with certain activated protein-tyrosine kinase receptors and with the pp60c-src/polyoma middle-T complex, suggesting that the enzyme is involved in growth regulation. The purified PtdIns 3-kinase appears to have two subunits, of 85 kDa and 110 kDa. Structural analysis at protein and cDNA levels revealed two forms of the 85 kDa subunit, one which associates with PtdIns 3-kinase activity termed p85 alpha, and a protein of unknown function, p85 beta. Both 85 kDa proteins contain src-homology regions 2 and 3 (SH2 and SH3), but lack enzymic activity, suggesting that they may be regulatory subunits of PtdIns 3-kinase. To probe their structure and function further, p85 alpha and p85 beta have been expressed and purified in large amounts from insect cells by using baculovirus vectors. Specific antisera detect p85 alpha, but not p85 beta, associated with PtdIns 3-kinase activity in various cell types. Co-expression studies in insect cells have shown that p85 alpha and p85 beta are substrates for the protein-tyrosine kinases of epidermal growth factor, colony-stimulating factor 1 and c-erbB2 receptors and the src family kinase p59c-fyn. Both p85 alpha and p85 beta form tight complexes with these protein-tyrosine kinases as measured by immunoprecipitation and kinase assays in vitro. The specificity of binding of free p85 is less restricted than that of p85 in the active PtdIns 3-kinase complex with the 110 kDa protein. The relevance of these results to growth-factor-induced PtdIns 3-kinase activation is discussed.

scholarly journals The ras-related gene rhoB is an immediate-early gene inducible by v-Fps, epidermal growth factor, and platelet-derived growth factor in rat fibroblasts.

1991 ◽  
Vol 11 (7) ◽  
pp. 3682-3690 ◽  
Author(s):  
D Jähner ◽  
T Hunter
Keyword(s):  
Growth Factor ◽  
Epidermal Growth Factor ◽  
Tyrosine Kinases ◽  
Protein Tyrosine Kinases ◽  
Platelet Derived Growth Factor ◽  
Immediate Early ◽  
Ras Gene ◽  
Protein Tyrosine ◽  
Sarcoma Virus ◽  
Epidermal Growth

A set of genes is rapidly inducible when quiescent fibroblasts are stimulated by growth factors or by the activation of temperature-sensitive retroviral protein-tyrosine kinases. Most of these so-called immediate-early genes were cloned by differential cDNA hybridization. DNA sequence analysis identified many of them as putative members of the growth factor or of the transcription factor gene family, suggesting a role in signal transmission during the G0-to-G1 transition. In this study, we identified one of the genes that are rapidly inducible by the retroviral protein-tyrosine kinases v-Src and v-Fps of Rous sarcoma virus and Fujinami sarcoma virus, respectively, as the rhoB gene, a member of the ras gene superfamily whose products are GTP-binding proteins, rhoB is transiently activated at the transcriptional level by v-Fps and by epidermal growth factor. Its labile RNA is inducible in the presence of cycloheximide but not of actinomycin D. rhoB is strongly induced by epidermal growth factor and by platelet-derived growth factor both in subconfluent, serum-starved and in density-arrested Rat-2 fibroblasts. Fetal calf serum is a poor inducer, particularly in density-arrested cells, and phorbol esters do not increase rhoB expression at all. These data suggest that rhoB is inducible by protein-tyrosine kinases through a pathway not involving the activation of protein kinase C. Neither the closely related rhoC and rhoA genes nor the distantly related c-H-ras gene is rapidly inducible by mitogens. Thus, rhoB is the first known member of the small GTP-binding proteins among the immediate-early genes.

The ras-related gene rhoB is an immediate-early gene inducible by v-Fps, epidermal growth factor, and platelet-derived growth factor in rat fibroblasts

1991 ◽  
Vol 11 (7) ◽  
pp. 3682-3690
Author(s):  
D Jähner ◽  
T Hunter
Keyword(s):  
Growth Factor ◽  
Epidermal Growth Factor ◽  
Tyrosine Kinases ◽  
Protein Tyrosine Kinases ◽  
Platelet Derived Growth Factor ◽  
Immediate Early ◽  
Ras Gene ◽  
Protein Tyrosine ◽  
Sarcoma Virus ◽  
Epidermal Growth

A set of genes is rapidly inducible when quiescent fibroblasts are stimulated by growth factors or by the activation of temperature-sensitive retroviral protein-tyrosine kinases. Most of these so-called immediate-early genes were cloned by differential cDNA hybridization. DNA sequence analysis identified many of them as putative members of the growth factor or of the transcription factor gene family, suggesting a role in signal transmission during the G0-to-G1 transition. In this study, we identified one of the genes that are rapidly inducible by the retroviral protein-tyrosine kinases v-Src and v-Fps of Rous sarcoma virus and Fujinami sarcoma virus, respectively, as the rhoB gene, a member of the ras gene superfamily whose products are GTP-binding proteins, rhoB is transiently activated at the transcriptional level by v-Fps and by epidermal growth factor. Its labile RNA is inducible in the presence of cycloheximide but not of actinomycin D. rhoB is strongly induced by epidermal growth factor and by platelet-derived growth factor both in subconfluent, serum-starved and in density-arrested Rat-2 fibroblasts. Fetal calf serum is a poor inducer, particularly in density-arrested cells, and phorbol esters do not increase rhoB expression at all. These data suggest that rhoB is inducible by protein-tyrosine kinases through a pathway not involving the activation of protein kinase C. Neither the closely related rhoC and rhoA genes nor the distantly related c-H-ras gene is rapidly inducible by mitogens. Thus, rhoB is the first known member of the small GTP-binding proteins among the immediate-early genes.

Sign in / Sign up

Export Citation Format

Share Document