Evidence map›Paper›PMID 22223652›Full record

ArticleThe Journal of biological chemistry2012

Receptor tyrosine kinase Ephb6 regulates vascular smooth muscle contractility and modulates blood pressure in concert with sex hormones.

Hongyu Luo, Zenghui Wu, Johanne Tremblay, Eric Thorin, Junzheng Peng, Julie L Lavoie, Bing Hu, Ekatherina Stoyanova, Guy Cloutier, Shijie Qi and 3 more

Open access · hybridAbstract read
In one paragraph

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 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
0.7field-weighted citation impact, top 35% 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

31 citing papers in PubMed, 41 citations in OpenAlex.

  1. Trial
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  4. Review
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  11. The EphB6 Receptor: Kinase-Dead but Very Much Alive.International journal of molecular sciences · 2021
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Guidance Molecules in Vascular Smooth Muscle.Frontiers in physiology · 2018
    Review
  20. Article
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

13 authors at 4 institutions in 2 countries.

Hongyu LuoResearch Centre, Centre Hospitalier de l’Université de Montréal, Montreal, Quebec H2L 4M1, Canada.
Zenghui Wu
Johanne Tremblay
Eric Thorin
Junzheng Peng
Julie L Lavoie
Bing Hu
Ekatherina Stoyanova
Guy Cloutier
Shijie Qi
Tao Wu
Mark Cameron
Jiangping Wu
Centre Hospitalier de l’Université de Montréal · CAMontreal Heart Institute · CAToronto General Hospital Research InstituteZhejiang University · CN

Funding

CIHR 14496-4CIHR CMI72323CIHR MOP14496CIHR MOP57697CIHR MOP69089CIHR MOP97829
6 · The paper itself

Abstract

Eph kinases constitute the largest receptor tyrosine kinase family, and their ligands, ephrins (Efns), are also cell surface molecules. Our study is the first to assess the role of Ephb6 in blood pressure (BP) regulation. We observed that EphB6 and all three of its Efnb ligands were expressed on vascular smooth muscle cells (VSMC) in mice. We discovered that small arteries from castrated Ephb6 gene KO males showed increased contractility, RhoA activation, and constitutive myosin light chain phosphorylation ex vivo compared with their WT counterparts. Consistent with this finding, castrated Ephb6 KO mice presented heightened BP compared with castrated WT controls. In vitro experiments in VSMC revealed that cross-linking Efnbs but not Ephb6 resulted in reduced VSMC contractions, suggesting that reverse signaling through Efnbs was responsible for the observed BP phenotype. The reverse signaling was mediated by an adaptor protein Grip1. Additional experiments demonstrated decreased 24-h urine catecholamines in male Ephb6 KO mice, probably as a compensatory feedback mechanism to keep their BP in the normal range. After castration, however, such compensation was abolished in Ephb6 KO mice and was likely the reason why BP increased overtly in these animals. It suggests that Ephb6 has a target in the nervous/endocrine system in addition to VSMC, regulating a testosterone-dependent catecholamine compensatory mechanism. Our study discloses that Ephs and Efns, in concert with testosterone, play a critical role in regulating small artery contractility and BP.

Indexed as

Adaptor Proteins, Signal TransducingAnimalsBlood PressureFemaleHumansHypertensionMaleMesenteric ArteriesMiceMice, Inbred C57BLMice, KnockoutMuscle, Smooth, VascularNerve Tissue ProteinsOrchiectomyReceptor, EphB6RNA, Small InterferingAdaptor Proteins, Signal TransducingGrip1 protein, mouseNerve Tissue ProteinsReceptor, EphB6RNA, Small InterferingTestosterone

Identifiers

PMID22223652
PMCPMC3307293
OpenAlexW2012433802

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.