Abstract
G protein-coupled receptors (GPCRs) can utilize receptor tyrosine kinases (RTKs) to mediate important cellular responses such as proliferation, differentiation and survival. Recent advances in the field suggest that GPCRinduced transactivation of RTKs might be important for diseases such as cancer and cardiac hypertrophy. Depending on the receptor and cell type, GPCR signaling involves activation of several different RTKs. By activating different subsets of RTKs, GPCRs can fine-tune their effects on target cells. Furthermore, RTK-independent signaling pathways also initiated by GPCRs may modify the biological read out of the transactivated RTKs. This review focuses on the mechanisms how GPCRs and intracellular messengers elicit transactivation of different RTKs and the resulting different biological responses.
Keywords: transactivation, map kinases, cell survival, egf receptor, pdgf receptor, trk, akt
Current Pharmaceutical Design
Title: Receptor Tyrosine Kinases are Signaling Intermediates of G Protein- Coupled Receptors
Volume: 10 Issue: 28
Author(s): A. Piiper and S. Zeuzem
Affiliation:
Keywords: transactivation, map kinases, cell survival, egf receptor, pdgf receptor, trk, akt
Abstract: G protein-coupled receptors (GPCRs) can utilize receptor tyrosine kinases (RTKs) to mediate important cellular responses such as proliferation, differentiation and survival. Recent advances in the field suggest that GPCRinduced transactivation of RTKs might be important for diseases such as cancer and cardiac hypertrophy. Depending on the receptor and cell type, GPCR signaling involves activation of several different RTKs. By activating different subsets of RTKs, GPCRs can fine-tune their effects on target cells. Furthermore, RTK-independent signaling pathways also initiated by GPCRs may modify the biological read out of the transactivated RTKs. This review focuses on the mechanisms how GPCRs and intracellular messengers elicit transactivation of different RTKs and the resulting different biological responses.
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Cite this article as:
Piiper A. and Zeuzem S., Receptor Tyrosine Kinases are Signaling Intermediates of G Protein- Coupled Receptors, Current Pharmaceutical Design 2004; 10 (28) . https://dx.doi.org/10.2174/1381612043382936
DOI https://dx.doi.org/10.2174/1381612043382936 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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