Evidence map›Paper›PMID 26795432›Full record

ArticleScientific reports2016

Mechanisms Restricting Diffusion of Intracellular cAMP.

Shailesh R Agarwal, Colleen E Clancy, Robert D Harvey

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
6.1field-weighted citation impact, top 3% 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

54 citing papers in PubMed, 102 citations in OpenAlex.

  1. Review
  2. Article
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  7. Article
  8. Bacterial cell volume regulation and the importance of cyclic di-AMP.Microbiology and molecular biology reviews : MMBR · 2024
    Review
  9. cAMP signaling: a remarkably regional affair.Trends in biochemical sciences · 2024
    Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Pore-like diffusion barriers in murine cardiac myocytes.bioRxiv : the preprint server for biology · 2023
    Article
  16. Review
  17. Dissipative Photochemical Abiogenesis of the Purines.Entropy (Basel, Switzerland) · 2022
    Article
  18. Article
  19. Article
  20. Review
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

3 authors at 2 institutions in 1 country.

Shailesh R AgarwalDepartment of Pharmacology University of Nevada School of Medicine Reno, NV 89557.
Colleen E ClancyDepartment of Pharmacology University of California, Davis Davis, CA 95616.
Robert D HarveyDepartment of Pharmacology University of Nevada School of Medicine Reno, NV 89557.
University of Nevada, Reno · USUniversity of California, Davis · US

Funding

Mechanisms of cAMP CompartmentationR01GM101928 · NIGMS · UNIVERSITY OF NEVADA RENO · PI HARVEY, ROBERT D · 2012 to 2015
$1.1M
NIGMS NIH HHS R01 GM101928
6 · The paper itself

Abstract

Although numerous receptors stimulate cAMP production in a wide array of cells, many elicit distinct, highly localized responses, implying that the subcellular distribution of cAMP is not uniform. One often used explanation is that phosphodiesterases, which breakdown cAMP, act as functional barriers limiting diffusion. However, several studies refute the notion that this is sufficient, suggesting that phosphodiesterase-independent movement of cAMP must occur at rates slower than free diffusion. But, until now this has never been demonstrated. Using Raster Image Correlation Spectroscopy (RICS), we measured the diffusion coefficient of a fluorescently-labeled cAMP derivative (φ450-cAMP) as well as other fluorescent molecules in order to investigate the role that molecular size, cell morphology, and buffering by protein kinase A (PKA) play in restricting cAMP mobility in different cell types. Our results demonstrate that cytosolic movement of cAMP is indeed much slower than the rate of free diffusion and that interactions with PKA, especially type II PKA associated with mitochondria, play a significant role. These findings have important implications with respect to cAMP signaling in all cells.

Indexed as

AnimalsCyclic AMPCyclic AMP-Dependent Protein KinasesDiffusionFluoresceinGreen Fluorescent ProteinsHeart VentriclesHEK293 CellsHumansIntracellular SpaceMaleMyocytes, CardiacPeptidesProtein SubunitsRats, Sprague-DawleySpectrum AnalysisCyclic AMPCyclic AMP-Dependent Protein Kinasesenhanced green fluorescent proteinFluoresceinGreen Fluorescent ProteinsPeptidesProtein Subunits

Identifiers

PMID26795432
PMCPMC4726171
OpenAlexW2260141424

What OpenQuestion holds

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LicenceCC BY
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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.