Evidence map›Paper›PMID 9490838›Full record

ArticleThe Journal of physiology1998

Cytoskeletal targeting of calponin in differentiated, contractile smooth muscle cells of the ferret.

C A Parker, K Takahashi, J X Tang, T Tao, K G Morgan

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

22 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. The role of actin filament dynamics in the myogenic response of cerebral resistance arteries.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2013
    Review
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Smooth muscle signalling pathways in health and disease.Journal of cellular and molecular medicine · 2008
    Review
  13. Direct association of calponin with specific domains of PKC-alpha.American journal of physiology. Gastrointestinal and liver physiology · 2008
    Article
  14. Article
  15. Review
  16. Review
  17. Article
  18. Article
  19. 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

5 authors at 4 institutions in 2 countries.

C A ParkerCardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston MA 02215, USA.
K Takahashi
J X Tang
T Tao
K G Morgan
Boston Biomedical Research Institute · USBeth Israel Deaconess Medical Center · USBrigham and Women's Hospital · USOsaka Medical Center for Cancer and Cardiovascular Diseases · JP

Funding

REGULATION OF CONTRACTION OF BLOOD VESSELSR01HL031704 · NHLBI · BOSTON UNIVERSITY (CHARLES RIVER CAMPUS) · PI MORGAN, KATHLEEN G · 1985 to 2009
$3.7M
CONTRACTION OF VASCULAR SMOOTH MUSCLE CELLSR01HL042293 · NHLBI · BOSTON BIOMEDICAL RESEARCH INSTITUTE · PI MORGAN, KATHLEEN G · 1989 to 2004
$1.2M
NHLBI NIH HHS HL31704NHLBI NIH HHS HL42293NHLBI NIH HHS R01 HL031704NHLBI NIH HHS R01 HL042293
6 · The paper itself

Abstract

1. Biochemical and quantitative image analysis methods were used to investigate the anatomical basis for the previously described agonist-induced redistribution of calponin. 2. At 140 nm resolution, the quantitative distribution of calponin in resting cells was statistically indistinguishable from that of filament bundles containing alpha-smooth muscle actin and myosin, but was significantly different from that of filaments containing beta-non-muscle actin. Conversely, in stimulated cells, the distribution of calponin was not significantly different from that of beta-actin filaments in the subplasmalemmal cell cortex but was significantly different from the distribution of alpha-actin- and myosin-containing filamentous bundles. 3. The distribution of calponin significantly differed from that of the intermediate filament proteins vimentin and desmin as well as that of the dense body protein alpha-actinin either by ratio analysis of the subcellular distribution or by colocalization analysis. 4. The imaging results, although limited to 140 nm spatial resolution, suggested the hypothesis that the agonist-induced redistribution involves the binding of calponin to isoform-specific actin filaments. This hypothesis was tested by quantifying the relative affinity of calponin for purified alpha- and beta-actin. Light scattering measurements showed that calponin induces bundle formation with beta-actin more readily than alpha-actin, indicating that calponin may be preferentially sequestered by beta-actin under appropriate conditions. 5. These results are consistent with a model whereby agonist activation decreases calponin's binding to filaments, but the tighter binding to beta-actin filaments results in a spatial redistribution of calponin to the submembranous cortex.

Indexed as

ActinsAnimalsCalcium-Binding ProteinsCalponinsCell DifferentiationCytoskeletonFerretsImmunohistochemistryIn Vitro TechniquesMicrofilament ProteinsMuscle, Smooth, VascularMyosinsPhenylephrinePortal VeinActinsCalcium-Binding ProteinsCalponinsMicrofilament ProteinsMyosinsPhenylephrine

Identifiers

PMID9490838
PMCPMC2230870
OpenAlexW2122818217

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.