ArticleAmerican journal of physiology. Cell physiology2012
Reciprocal regulation controlling the expression of CPI-17, a specific inhibitor protein for the myosin light chain phosphatase in vascular smooth muscle cells.
Article in American journal of physiology. Cell physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed, 25 citations in OpenAlex.
- Modified Saengmaeksan, an herbal formula containing six herbs, improves hypertension through RhoA/Rho kinase-mediated vasorelaxation.Integrative medicine research · 2025Article
- The interplay between alterations in esophageal microbiota associated with Th17 immune response and impaired LC20 phosphorylation in achalasia.Journal of gastroenterology · 2024Article
- Effect of Kaempferol on Modulation of Vascular Contractility Mainly through PKC and CPI-17 Inactivation.Biomolecules & therapeutics · 2024Article
- The Effect of Luteolin on the Modulation of Vascular Contractility via ROCK and CPI-17 Inactivation.Biomolecules & therapeutics · 2023Article
- The Effect of Galangin on the Regulation of Vascular Contractility via the Holoenzyme Reactivation Suppressing ROCK/CPI-17 rather than PKC/CPI-17.Biomolecules & therapeutics · 2022Article
- Phosphorylation Sites in Protein Kinases and Phosphatases Regulated by Formyl Peptide Receptor 2 Signaling.International journal of molecular sciences · 2020Review
- Phenylephrine induces relaxation of longitudinal strips from small arteries of goat legs.PloS one · 2020Article
- Transcriptional Suppression of CPI-17 Gene Expression in Vascular Smooth Muscle Cells by Tumor Necrosis Factor, Krüppel-Like Factor 4, and Sp1 Is Associated with Lipopolysaccharide-Induced Vascular Hypocontractility, Hypotension, and Mortality.Molecular and cellular biology · 2019Article
- Smoothelin-like 1 deletion enhances myogenic reactivity of mesenteric arteries with alterations in PKC and myosin phosphatase signaling.Scientific reports · 2019Article
- Induction of myosin light chain kinase and CPI-17 by TGF-β accelerates contractile activity in intestinal epithelial cells.The Journal of veterinary medical science · 2018Article
- Protein phosphatases 1 and 2A and their naturally occurring inhibitors: current topics in smooth muscle physiology and chemical biology.The journal of physiological sciences : JPS · 2018Review
- Fluid Osmolarity Acutely and Differentially Modulates Lymphatic Vessels Intrinsic Contractions and Lymph Flow.Frontiers in physiology · 2018Article
- Diversity and plasticity in signaling pathways that regulate smooth muscle responsiveness: Paradigms and paradoxes for the myosin phosphatase, the master regulator of smooth muscle contraction.Journal of smooth muscle research = Nihon Heikatsukin Gakkai kikanshi · 2017Review
- HMGB4 is expressed by neuronal cells and affects the expression of genes involved in neural differentiation.Scientific reports · 2016Article
- IL-1β reduces tonic contraction of mesenteric lymphatic muscle cells, with the involvement of cycloxygenase-2 and prostaglandin E2.British journal of pharmacology · 2015Article
- Redox signaling and splicing dependent change in myosin phosphatase underlie early versus late changes in NO vasodilator reserve in a mouse LPS model of sepsis.American journal of physiology. Heart and circulatory physiology · 2015Article
- Mechanical stretch upregulates proteins involved in Ca2+ sensitization in urinary bladder smooth muscle hypertrophy.American journal of physiology. Cell physiology · 2014Article
- A bioinformatic and computational study of myosin phosphatase subunit diversity.American journal of physiology. Regulatory, integrative and comparative physiology · 2014Article
- Active components of ginger potentiate β-agonist-induced relaxation of airway smooth muscle by modulating cytoskeletal regulatory proteins.American journal of respiratory cell and molecular biology · 2014Article
- Nuclear localization of CPI-17, a protein phosphatase-1 inhibitor protein, affects histone H3 phosphorylation and corresponds to proliferation of cancer and smooth muscle cells.Biochemical and biophysical research communications · 2013Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
Cellular activity of the myosin light chain phosphatase (MLCP) determines agonist-induced force development of smooth muscle (SM). CPI-17 is an endogenous inhibitor protein for MLCP, responsible for mediating G-protein signaling into SM contraction. Fluctuations in CPI-17 expression occur in response to pathological stresses, altering excitation-contraction coupling in SM. Here, we determined the signaling pathways regulating CPI-17 expression in rat aorta tissues and the cell culture using a pharmacological approach. CPI-17 transcription was suppressed in response to the proliferative stimulus with platelet-derived growth factor (PDGF) through the ERK1/2 pathway, whereas it was elevated in response to inflammatory, stress-induced and excitatory stimuli with transforming growth factor-β, IL-1β, TNFα, sorbitol, and serotonin. CPI-17 transcription was repressed by inhibition of JNK, p38, PKC, and Rho-kinase (ROCK). The mouse and human CPI-17 gene promoters were governed by the proximal GC-boxes at the 5'-flanking region, where Sp1/Sp3 transcription factors bound. Sp1 binding to the region was more prominent in intact aorta tissues, compared with the SM cell culture, where the CPI-17 gene is repressed. The 173-bp proximal promoter activity was negatively and positively regulated through PDGF-induced ERK1/2 and sorbitol-induced p38/JNK pathways, respectively. By contrast, PKC and ROCK inhibitors failed to repress the 173-bp promoter activity, suggesting distal enhancer elements. CPI-17 transcription was insensitive to knockdown of myocardin/Kruppel-like factor 4 small interfering RNA or histone deacetylase inhibition. The reciprocal regulation of Sp1/Sp3-driven CPI-17 expression through multiple kinases may be responsible for the adaptation of MLCP signal and SM tone to environmental changes.
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Registered trials
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