Evidence map›Paper›PMID 20590592›Full record

ArticleBritish journal of pharmacology2010

The xanthine derivative KMUP-1 inhibits models of pulmonary artery hypertension via increased NO and cGMP-dependent inhibition of RhoA/Rho kinase.

Hui-Hsuan Chung, Zen-Kong Dai, Bin-Nan Wu, Jwu-Lai Yeh, Chee-Yin Chai, Koung-Shing Chu, Chung-Pin Liu, Ing-Jun Chen

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.1field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 41 citations in OpenAlex.

  1. Signaling pathways and targeted therapy for pulmonary hypertension.Signal transduction and targeted therapy · 2025
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  5. rBMSC/Cav-1Stem cells international · 2019
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  10. Restoration of uridine 5'-triphosphate-suppressed delayed rectifying KThe Kaohsiung journal of medical sciences · 2016
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Hui-Hsuan ChungInstitute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
Zen-Kong Dai
Bin-Nan Wu
Jwu-Lai Yeh
Chee-Yin Chai
Koung-Shing Chu
Chung-Pin Liu
Ing-Jun Chen
Kaohsiung Medical University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeKMUP-1 is known to increase cGMP, enhance endothelial nitric oxide synthase (eNOS) and suppress Rho kinase (ROCK) expression in smooth muscle. Here, we investigated the mechanism of action of KMUP-1 on acute and chronic pulmonary artery hypertension (PAH) in rats. EXPERIMENTAL APPROACH: We measured pulmonary vascular contractility, wall thickening, eNOS immunostaining, expressions of ROCK II, RhoA activation, myosin phosphatase target subunit 1 (MYPT1) phosphorylation, eNOS, soluble guanylyl cyclase (sGC), protein kinase G (PKG) and phosphodiesterase 5A (PDE-5A), blood oxygenation and cGMP/cAMP, and right ventricular hypertrophy (RVH) in rats. KEY

resultsIn rings of intact pulmonary artery (PA), KMUP-1 relaxed the vasoconstriction induced by phenylephrine (10 microM) or the thromboxane A(2)-mimetic U46619 (0.5 microM). In endothelium-denuded PA rings, this relaxation was reduced. In acute PAH induced by U46619 (2.5 microg x kg(-1) x min(-1), 30 min), KMUP-1 relaxed vasoconstriction by enhancing levels of eNOS, sGC and PKG, suppressing those of PDE-5A, RhoA/ROCK II activation and MYPT1 phosphorylation, and restoring oxygenation in blood and cGMP/cAMP in plasma. Incubating smooth muscle cells from PA (PASMCs) with KMUP-1 inhibited thapsigargin-induced Ca(2+) efflux and angiotensin II-induced Ca(2+) influx. In chronic PAH model induced by monocrotaline, KMUP-1 increased eNOS and reduced RhoA/ROCK II activation/expression, PA wall thickening, eNOS immunostaining and RVH. KMUP-1 and sildenafil did not inhibit monocrotaline-induced PDE-5A expression. CONCLUSION AND IMPLICATIONS: KMUP-1 decreased PAH by enhancing NO synthesis by eNOS, with consequent cGMP-dependent inhibition of RhoA/ROCK II and Ca(2+) desensitization in PASMCs. KMUP-1 has the potential to reduce vascular resistance, remodelling and RVH in PAH.

Indexed as

AnimalsAntihypertensive AgentsCalcium SignalingCells, CulturedCyclic GMP-Dependent Protein KinasesEndothelium, VascularEnzyme InhibitorsHypertension, PulmonaryHypertrophy, Right VentricularIn Vitro TechniquesLungMaleMyocytes, Smooth MuscleNitric Oxide Synthase Type IIINucleotides, CyclicPhosphorylationAntihypertensive AgentsCyclic GMP-Dependent Protein KinasesEnzyme InhibitorsKMUP 1Nitric Oxide Synthase Type IIINos3 protein, ratNucleotides, CyclicPiperidinesPpp1r12a protein, ratProtein Phosphatase 1rhoA GTP-Binding Proteinrho-Associated KinasesXanthines

Identifiers

PMID20590592
PMCPMC2936002
OpenAlexW1503549916

What OpenQuestion holds

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Registered trials

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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.