ArticleThe Journal of biological chemistry2012
Regulation of RhoA signaling by the cAMP-dependent phosphorylation of RhoGDIα.
Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.
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Who cites it
38 citing papers in PubMed, 57 citations in OpenAlex.
- A high-sensitivity TIE2-GRB2 BRET platform for functional and pharmacologic profiling of pathogenic variants associated with venous malformations.Angiogenesis · 2026Article
- Induction of adipocyte thermogenic program by Rho-associated coiled-coil containing kinase 2.iScience · 2026Article
- Mitochondrial-targeted MitoQ attenuates PFOS-induced vasoconstriction and cAMP suppression in human placental arteries†.Biology of reproduction · 2026Article
- Unresolved mechanisms: a hypothesized spatial regulation of myosin light chain phosphorylation within the walls of resistance arteries.Frontiers in physiology · 2026Article
- Article
- Actomyosin-mediated inhibition of synaptic vesicle release under CBTranslational psychiatry · 2024Article
- NPRC deletion attenuates cardiac fibrosis in diabetic mice by activating PKA/PKG and inhibiting TGF-β1/Smad pathways.Science advances · 2023Article
- High extracellular glucose promotes cell motility by modulating cell deformability and contractility via the cAMP-RhoA-ROCK axis in human breast cancer cells.Molecular biology of the cell · 2023Article
- Unleashing Spinal Cord Repair: The Role of cAMP-Specific PDE Inhibition in Attenuating Neuroinflammation and Boosting Regeneration after Traumatic Spinal Cord Injury.International journal of molecular sciences · 2023Review
- Targeting the DP2 receptor alleviates muscle atrophy and diet-induced obesity in mice through oxidative myofiber transition.Journal of cachexia, sarcopenia and muscle · 2023Article
- ZNF185 prevents stress fiber formation through the inhibition of RhoA in endothelial cells.Communications biology · 2023Article
- In-depth genetic and molecular characterization of diaphanous related formin 2 (DIAPH2) and its role in the inner ear.PloS one · 2023Article
- CIC missense variants contribute to susceptibility for spina bifida.Human mutation · 2022Article
- Article
- Lack of adducin impairs the stability of endothelial adherens and tight junctions and may be required for cAMP-Rac1-mediated endothelial barrier stabilization.Scientific reports · 2022Article
- A serotonergic axon-cilium synapse drives nuclear signaling to alter chromatin accessibility.Cell · 2022Article
- Review
- Somatostatin Primes Endothelial Cells for Agonist-Induced Hyperpermeability and Angiogenesis In Vitro.International journal of molecular sciences · 2022Article
- Review
- Binding of the Andes Virus Nucleocapsid Protein to RhoGDI Induces the Release and Activation of the Permeability Factor RhoA.Journal of virology · 2021Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
RhoA plays a pivotal role in regulating cell shape and movement. Protein kinase A (PKA) inhibits RhoA signaling and thereby induces a characteristic morphological change, cell rounding. This has been considered to result from cAMP-induced phosphorylation of RhoA at Ser-188, which induces a stable RhoA-GTP-RhoGDIα complex and sequesters RhoA to the cytosol. However, few groups have shown RhoA phosphorylation in intact cells. Here we show that phosphorylation of RhoGDIα but not RhoA plays an essential role in the PKA-induced inhibition of RhoA signaling and in the morphological changes using cardiac fibroblasts. The knockdown of RhoGDIα by siRNA blocks cAMP-induced cell rounding, which is recovered by RhoGDIα-WT expression but not when a RhoGDIα-S174A mutant is expressed. PKA phosphorylates RhoGDIα at Ser-174 and the phosphorylation of RhoGDIα is likely to induce the formation of a active RhoA-RhoGDIα complex. Our present results thus reveal a principal molecular mechanism underlying G(s)/cAMP-induced cross-talk with G(q)/G(13)/RhoA signaling.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.