Evidence map›Paper›PMID 22371971›Full record

ArticleJournal of cellular biochemistry2012

Calcineurin serves in the circadian output pathway to regulate the daily rhythm of L-type voltage-gated calcium channels in the retina.

Cathy Chia-Yu Huang, Michael L Ko, Darya I Vernikovskaya, Gladys Y-P Ko

Open access · greenAbstract read
In one paragraph

Article in Journal of cellular biochemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
0.6field-weighted citation impact, top 39% 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

17 citing papers in PubMed, 26 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Circadian regulation in the retina: From molecules to network.The European journal of neuroscience · 2020
    Review
  10. Article
  11. Article
  12. Article
  13. High-Fat Diet-Induced Retinal Dysfunction.Investigative ophthalmology & visual science · 2015
    Article
  14. Article
  15. Article
  16. Protein phosphatase-dependent circadian regulation of intermediate-term associative memory.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2013
    Article
  17. 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

4 authors at 1 institution in 1 country.

Cathy Chia-Yu HuangDepartment of Veterinary Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas 77843-4458, USA.
Michael L Ko
Darya I Vernikovskaya
Gladys Y-P Ko
Texas A&M University · US

Funding

Circadian Rhythm In Cone Photoreceptors: Cellular MechanismsR01EY017452 · NEI · TEXAS A&M UNIVERSITY · PI KO, GLADYS Y · 2007 to 2012
$1.8M
NEI NIH HHS R01 EY017452NEI NIH HHS R01EY017452
6 · The paper itself

Abstract

The L-type voltage-gated calcium channels (L-VGCCs) in avian retinal cone photoreceptors are under circadian control, in which the protein expression of the α1 subunits and the current density are greater at night than during the day. Both Ras-mitogen-activated protein kinase (MAPK) and Ras-phosphatidylionositol 3 kinase-protein kinase B (PI3K-AKT) signaling pathways are part of the circadian output that regulate the L-VGCC rhythm, while cAMP-dependent signaling is further upstream of Ras to regulate the circadian outputs in photoreceptors. However, there are missing links between cAMP-dependent signaling and Ras in the circadian output regulation of L-VGCCs. In this study, we report that calcineurin, a Ca2+/calmodulin-dependent serine (ser)/threonine (thr) phosphatase, participates in the circadian output pathway to regulate L-VGCCs through modulating both Ras-MAPK and Ras-PI3K-AKT signaling. The activity of calcineurin, but not its protein expression, was under circadian regulation. Application of a calcineurin inhibitor, FK-506 or cyclosporine A, reduced the L-VGCC current density at night with a corresponding decrease in L-VGCCα1D protein expression, but the circadian rhythm of L-VGCCα1D mRNA levels were not affected. Inhibition of calcineurin further reduced the phosphorylation of ERK and AKT (at thr 308) and inhibited the activation of Ras, but inhibitors of MAPK or PI3K signaling did not affect the circadian rhythm of calcineurin activity. However, inhibition of adenylate cyclase significantly dampened the circadian rhythm of calcineurin activity. These results suggest that calcineurin is upstream of MAPK and PI3K-AKT but downstream of cAMP in the circadian regulation of L-VGCCs.

Indexed as

Circadian RhythmAnimalsCalcineurinCalcium Channels, L-TypeChick EmbryoExtracellular Signal-Regulated MAP KinasesPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktRetinaSignal TransductionCalcineurinCalcium Channels, L-TypeExtracellular Signal-Regulated MAP KinasesPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-akt

Identifiers

PMID22371971
PMCPMC3296962
OpenAlexW2107359990

What OpenQuestion holds

Textmetadata
LicenceTDM
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.