Evidence map›Paper›PMID 21987453›Full record

ArticleHepatology (Baltimore, Md.)2012

Altered store operated calcium entry increases cyclic 3',5'-adenosine monophosphate production and extracellular signal-regulated kinases 1 and 2 phosphorylation in polycystin-2-defective cholangiocytes.

Carlo Spirli, Luigi Locatelli, Romina Fiorotto, Carola M Morell, Luca Fabris, Tullio Pozzan, Mario Strazzabosco

RetractedErratum issuedAbstract readRetracted Publication
In one paragraph

Article in Hepatology (Baltimore, Md.), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
3.8field-weighted citation impact, top 7% 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

38 citing papers in PubMed, 58 citations in OpenAlex.

  1. Review
  2. Polycystic Liver Disease: Pathophysiology, Diagnosis and Treatment.Hepatic medicine : evidence and research · 2022
    Review
  3. Review
  4. Review
  5. Review
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Animal models of biliary injury and altered bile acid metabolism.Biochimica et biophysica acta. Molecular basis of disease · 2018
    Review
  13. Review
  14. Review
  15. Article
  16. Article
  17. The functions of TRPP2 in the vascular system.Acta pharmacologica Sinica · 2016
    Review
  18. Article
  19. "Store-operated" cAMP signaling contributes to Ca2+-activated Cl- secretion in T84 colonic cells.American journal of physiology. Gastrointestinal and liver physiology · 2015
    Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 2 countries.

Carlo SpirliDepartment of Internal Medicine, Liver Center and Digestive Diseases Section, Yale University, New Haven, CT 06520, USA.
Luigi Locatelli
Romina Fiorotto
Carola M Morell
Luca Fabris
Tullio Pozzan
Mario Strazzabosco
Yale University · USUniversity of Milano-Bicocca · ITUniversity of Bergamo · ITVeneto Institute of Molecular Medicine · IT

Funding

Yale Liver CenterP30DK034989 · NIDDK · YALE UNIVERSITY · PI YASUKO IWAKIRI · 1986 to 2026
$31.1M
Epithelial Angiogenic Signaling in Polycystic Diseases of the LiverR01DK079005 · NIDDK · YALE UNIVERSITY · PI STRAZZABOSCO, MARIO · 2008 to 2017
$3.5M
NIDDK NIH HHS DK079005NIDDK NIH HHS DK34989NIDDK NIH HHS P30 DK034989NIDDK NIH HHS R01 DK079005
6 · The paper itself

Abstract

unlabelledMutations in polycystins (PC1 or PC2/TRPP2) cause progressive polycystic liver disease (PLD). In PC2-defective mice, cyclic 3',5'-adenosine monophosphate/ protein kinase A (cAMP/PKA)-dependent activation of extracellular signal-regulated kinase/ mammalian target of rapamycin (ERK-mTOR) signaling stimulates cyst growth. We investigated the mechanisms connecting PC2 dysfunction to altered Ca(2+) and cAMP production and inappropriate ERK signaling in PC2-defective cholangiocytes. Cystic cholangiocytes were isolated from PC2 conditional-KO (knockout) mice (Pkd2(flox/-) :pCxCreER™; hence, called Pkd2KO) and compared to cholangiocytes from wild-type mice (WT). Our results showed that, compared to WT cells, in PC2-defective cholangiocytes (Pkd2KO), cytoplasmic and ER-Ca(2+) (measured with Fura-2 and Mag-Fluo4) levels are decreased and store-operated Ca(2+) entry (SOCE) is inhibited, whereas the expression of Ca(2+) -sensor stromal interaction molecule 1 (STIM1) and store-operated Ca(2+) channels (e.g., the Orai1 channel) are unchanged. In Pkd2KO cells, ER-Ca(2+) depletion increases cAMP and PKA-dependent ERK1/2 activation and both are inhibited by STIM1 inhibitors or by silencing of adenylyl cyclase type 6 (AC6).

conclusionThese data suggest that PC2 plays a key role in SOCE activation and inhibits the STIM-dependent activation of AC6 by ER Ca(2+) depletion. In PC2-defective cells, the interaction of STIM-1 with Orai channels is uncoupled, whereas coupling to AC6 is maximized. The resulting overproduction of cAMP, in turn, potently activates the PKA/ERK pathway. PLD, because of PC2 deficiency, represents the first example of human disease linked to the inappropriate activation of store-operated cAMP production.

Indexed as

Adenylyl CyclasesAnimalsBile DuctsCalciumCalcium ChannelsCalcium SignalingCells, CulturedCyclic AMPCyclic AMP-Dependent Protein KinasesHomeostasisMembrane GlycoproteinsMiceMice, KnockoutMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3Models, Animaladenylyl cyclase 6Adenylyl CyclasesCalciumCalcium ChannelsCyclic AMPCyclic AMP-Dependent Protein KinasesMembrane GlycoproteinsMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3Stim1 protein, mouseStromal Interaction Molecule 1TRPP Cation ChannelsVascular Endothelial Growth Factor A

Identifiers

PMID21987453
PMCPMC3272110
OpenAlexW1985039091

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.