Book chapter
Genetic Regulation of CGRP and Its Actions
The calcitonin gene-related peptide family, pp.97-114
Springer Netherlands
09/04/2009
DOI: 10.1007/978-90-481-2909-6_7
Abstract
The calcitonin gene-related peptide (CGRP) gene is specifically expressed and regulated in a subset of cell types. Abnormal regulation of CGRP gene expression and/or sensitivity to CGRP actions may contribute to certain pathologies. In this chapter, we will summarize the current state of knowledge on the CGRP promoter and the use of a genetic strategy to sensitize mice to CGRP actions. The CGRP promoter is regulated by two distinct elements: a proximal cyclic AMP response element and a distal, regulated cell-specific enhancer. Both of these elements are activated by mitogen-activated protein kinase (MAPK) signaling pathways. MAPK can stimulate the CGRP promoter in response to proinflammatory cytokines. In addition, CGRP can directly activate these pathways to boost its own expression and potentially increase CGRP actions in a feedback loop. These pathways may contribute to the elevated CGRP levels in migraine and sepsis. Genetic enhancement of the CGRP receptor subunit, receptor activity-modifying protein-1 (RAMP1), increases CGRP actions in vascular smooth muscle and neurons. Potential implications of CGRP elevation and sensitization in migraine will be discussed.
Details
- Title: Subtitle
- Genetic Regulation of CGRP and Its Actions
- Creators
- Ki-Youb Park - Molecular and Cellular Biology, University of Iowa, Iowa City, USAAndrew F Russo - Molecular Physiology and Biophysics, University of Iowa, Iowa City, USA
- Resource Type
- Book chapter
- Publication Details
- The calcitonin gene-related peptide family, pp.97-114
- DOI
- 10.1007/978-90-481-2909-6_7
- Publisher
- Springer Netherlands; Dordrecht
- Language
- English
- Date published
- 09/04/2009
- Academic Unit
- Neurology; Molecular Physiology and Biophysics; Iowa Neuroscience Institute; Craniofacial Anomalies Research Center
- Record Identifier
- 9984070509802771
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