scholarly journals Interactions between Type III receptor tyrosine phosphatases and growth factor receptor tyrosine kinases regulate tracheal tube formation in Drosophila

Biology Open ◽  
2012 ◽  
Vol 1 (6) ◽  
pp. 548-558 ◽  
Author(s):  
M. Jeon ◽  
M. P. Scott ◽  
K. Zinn
Keyword(s):  
Growth Factor ◽  
Tracheal Tube ◽  
Tyrosine Kinases ◽  
Receptor Tyrosine Kinases ◽  
Growth Factor Receptor ◽  
Tube Formation ◽  
Tyrosine Phosphatases ◽  
Type Iii ◽  
Receptor Tyrosine Phosphatases

scholarly journals Exploring the Gamut of Receptor Tyrosine Kinases for Their Promise in the Management of Non-Alcoholic Fatty Liver Disease

Biomedicines ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 1776
Author(s):  
Sayali Bhave ◽  
Han Kiat Ho
Keyword(s):  
Growth Factor ◽  
Tyrosine Kinases ◽  
Fatty Liver Disease ◽  
Drug Targets ◽  
Fibroblast Growth Factor Receptor ◽  
Receptor Tyrosine Kinases ◽  
Growth Factor Receptor ◽  
Fibroblast Growth ◽  
Alcoholic Fatty Liver ◽  
Alcoholic Fatty Liver Disease

Recently, non-alcoholic fatty liver disease (NAFLD) has emerged as a predominant health concern affecting approximately a quarter of the world’s population. NAFLD is a spectrum of liver ailments arising from nascent lipid accumulation and leading to inflammation, fibrosis or even carcinogenesis. Despite its prevalence and severity, no targeted pharmacological intervention is approved to date. Thus, it is imperative to identify suitable drug targets critical to the development and progression of NAFLD. In this quest, a ray of hope is nestled within a group of proteins, receptor tyrosine kinases (RTKs), as targets to contain or even reverse NAFLD. RTKs control numerous vital biological processes and their selective expression and activity in specific diseases have rendered them useful as drug targets. In this review, we discuss the recent advancements in characterizing the role of RTKs in NAFLD progression and qualify their suitability as pharmacological targets. Available data suggests inhibition of Epidermal Growth Factor Receptor, AXL, Fibroblast Growth Factor Receptor 4 and Vascular Endothelial Growth Factor Receptor, and activation of cellular mesenchymal-epithelial transition factor and Fibroblast Growth Factor Receptor 1 could pave the way for novel NAFLD therapeutics. Thus, it is important to characterize these RTKs for target validation and proof-of-concept through clinical trials.

scholarly journals Quantifying the strength of heterointeractions among receptor tyrosine kinases from different subfamilies: Implications for cell signaling

2020 ◽  
Vol 295 (29) ◽  
pp. 9917-9933 ◽  
Author(s):  
Michael D. Paul ◽  
Hana N. Grubb ◽  
Kalina Hristova
Keyword(s):  
Growth Factor ◽  
Tyrosine Kinases ◽  
Receptor Tyrosine Kinases ◽  
Growth Factor Receptor ◽  
Vascular Endothelial ◽  
Eph Receptor ◽  
Vital Cell ◽  
Cell Processes ◽  
Epidermal Growth ◽  
Endothelial Growth Factor

Receptor tyrosine kinases (RTKs) are single-pass membrane proteins that control vital cell processes such as cell growth, survival, and differentiation. There is a growing body of evidence that RTKs from different subfamilies can interact and that these diverse interactions can have important biological consequences. However, these heterointeractions are often ignored, and their strengths are unknown. In this work, we studied the heterointeractions of nine RTK pairs, epidermal growth factor receptor (EGFR)–EPH receptor A2 (EPHA2), EGFR–vascular endothelial growth factor receptor 2 (VEGFR2), EPHA2–VEGFR2, EPHA2–fibroblast growth factor receptor 1 (FGFR1), EPHA2–FGFR2, EPHA2–FGFR3, VEGFR2–FGFR1, VEGFR2–FGFR2, and VEGFR2–FGFR3, using a FRET-based method. Surprisingly, we found that RTK heterodimerization and homodimerization strengths can be similar, underscoring the significance of RTK heterointeractions in signaling. We discuss how these heterointeractions can contribute to the complexity of RTK signal transduction, and we highlight the utility of quantitative FRET for probing multiple interactions in the plasma membrane.

Conformational Analysis of the Phosphorylated Epidermal Growth Factor Receptor

1999 ◽  
Vol 19 (5) ◽  
pp. 397-402 ◽  
Author(s):  
Anupam Bishayee ◽  
Laura Beguinot ◽  
Subal Bishayee
Keyword(s):  
Epidermal Growth Factor Receptor ◽  
Growth Factor ◽  
Conformational Changes ◽  
Tyrosine Kinases ◽  
Egf Receptor ◽  
Receptor Tyrosine Kinases ◽  
Growth Factor Receptor ◽  
Tyrosine Residue ◽  
Peptide Antibody ◽  
Epidermal Growth

Phosphorylation-induced conformational changes have been well documented with different receptor tyrosine kinases. However, the susceptible epitopes and the tyrosine residue(s) involved in particular structural alteration mostly remain to be determined. Using a conformation-specific anti-peptide antibody, we have not only identified one such domain in the C-terminal tail of the EGF receptor but also identified the phosphate acceptor sites that are involved in the conformational change.

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