Evidence map›Paper›PMID 22023389›Full record

ArticleEuropean journal of haematology2012

The cellular and molecular mechanisms for neutropenia in Barth syndrome.

Vahagn Makaryan, Willem Kulik, Frederic M Vaz, Christopher Allen, Yigal Dror, David C Dale, Andrew A Aprikyan

Open access · greenAbstract read
In one paragraph

Article in European journal of haematology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.0field-weighted citation impact, top 23% 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

26 citing papers in PubMed, 40 citations in OpenAlex.

  1. Trial
  2. Effects of Cannabidiol on TAFAZZIN-Deficient B-Lymphoblastoid Cells.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. The metabolic basis of inherited neutropenias.British journal of haematology · 2024
    Review
  8. The critical role of cardiolipin in metazoan differentiation, development, and maturation.Developmental dynamics : an official publication of the American Association of Anatomists · 2023
    Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. Review
  14. Role ofJournal of developmental biology · 2020
    Review
  15. Review
  16. Observational
  17. Article
  18. Fat for fuel: lipid metabolism in haematopoiesis.Clinical & translational immunology · 2019
    Review
  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

7 authors at 4 institutions in 3 countries.

Vahagn MakaryanDepartment of Medicine, University of Washington, Seattle, WA, USA.
Willem Kulik
Frederic M Vaz
Christopher Allen
Yigal Dror
David C Dale
Andrew A Aprikyan
University of Washington · USHospital for Sick Children · CAAcademic Medical Center · NLUniversity of Amsterdam · NL

Funding

Molecular Studies of Severe Congenital NeutropeniaR01CA089135 · NCI · UNIVERSITY OF WASHINGTON · PI APRIKYAN, ANDREW ANDRANIK · 2001 to 2005
$1.1M
Molecular Mechanisms of MyelokathexisR21AI079778 · NIAID · UNIVERSITY OF WASHINGTON · PI DALE, DAVID CHANDLER · 2008 to 2009
$529k
NCI NIH HHS 5R01CA089135NCI NIH HHS R01 CA089135NIAID NIH HHS R21 AI079778NIAID NIH HHS R21AI079778
6 · The paper itself

Abstract

Barth syndrome (BTHS), a rare, X-linked, recessive disease, is characterized by neutropenia and cardiomyopathy. BTHS is caused by loss-of-function mutations of the tafazzin (TAZ) gene. We developed a model of BTHS by transfecting human HL60 myeloid progenitor cells with TAZ-specific shRNAs. Results demonstrate a significant downregulation in TAZ expression, mimicking the effects of naturally occurring truncation mutations in TAZ. Flow cytometry analyses of cells with TAZ-specific, but not scrambled, shRNAs demonstrate nearly twofold increase in the proportion of annexin V-positive cells and significantly increased dissipation of mitochondrial membrane potential as determined by DIOC6 staining. Transfection of TAZ-specific shRNA had similar effects in U937 myeloid cells but not in lymphoid cell lines. Further studies in HL60 myeloid progenitor cells revealed aberrant release of cytochrome c from mitochondria and significantly elevated levels of activated caspase-3 in response to TAZ knockdown. Treatment with caspase-specific inhibitor zVAD-fmk resulted in substantially reduced apoptosis to near-normal levels. These data suggest that neutropenia in BTHS is attributable to increased dissipation of mitochondrial membrane potential, aberrant release of cytochrome c, activation of caspase-3, and accelerated apoptosis of myeloid progenitor cells, and that this defect can be partially restored in vitro by treatment with caspase-specific inhibitors.

Indexed as

AcyltransferasesApoptosisBarth SyndromeCardiolipinsCell Line, TumorCell SurvivalGene Expression RegulationGene SilencingHL-60 CellsHumansJurkat CellsMembrane Potential, MitochondrialMyeloid Progenitor CellsNeutropeniaPrecursor Cells, T-LymphoidRNA, Small InterferingAcyltransferasesCardiolipinsRNA, Small InterferingTAFAZZIN protein, humanTranscription Factors

Identifiers

PMID22023389
PMCPMC4445723
OpenAlexW1494952166

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.