Evidence map›Paper›PMID 21957071›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2011

Antiapoptotic protein Lifeguard is required for survival and maintenance of Purkinje and granular cells.

Tatiana Hurtado de Mendoza, Carlos G Perez-Garcia, Todd T Kroll, Nien H Hoong, Dennis D M O'Leary, Inder M Verma

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

25 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. TMBIM-mediated CaBiochimica et biophysica acta. Molecular cell research · 2017
    Review
  13. Review
  14. Suppressing N-Acetyl-l-Aspartate Synthesis Prevents Loss of Neurons in a Murine Model of Canavan Leukodystrophy.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

Tatiana Hurtado de MendozaLaboratory of Genetics, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA.
Carlos G Perez-Garcia
Todd T Kroll
Nien H Hoong
Dennis D M O'Leary
Inder M Verma
Salk Institute for Biological Studies · USLaboratory of Molecular Genetics · PLCentral Washington University · US

Funding

REGULATION OF NF-KAPPA BR37AI048034 · NIAID · SALK INSTITUTE FOR BIOLOGICAL STUDIES · PI VERMA, INDER MOHAN · 2000 to 2009
$7.3M
Early Events in Cortical DevelopmentR37NS031558 · NINDS · SALK INSTITUTE FOR BIOLOGICAL STUDIES · PI O'LEARY, DENNIS D · 2004 to 2010
$4.0M
Regulation of NF-Kappa BR01AI048034 · NIAID · SALK INSTITUTE FOR BIOLOGICAL STUDIES · PI VERMA, INDER MOHAN · 2010 to 2014
$3.6M
Transcriptional Factors in Forebrain PatterningR01MH086147 · NIMH · SALK INSTITUTE FOR BIOLOGICAL STUDIES · PI O'LEARY, DENNIS D · 2009 to 2013
$2.3M
NIAID NIH HHS AI048034NIAID NIH HHS R01 AI048034NIAID NIH HHS R37 AI048034NIMH NIH HHS R01 MH086147NINDS NIH HHS R37 NS031558
6 · The paper itself

Abstract

Lifeguard (LFG) is an inhibitor of Fas-mediated cell death and is highly expressed in the cerebellum. We investigated the biological role of LFG in the cerebellum in vivo, using mice with reduced LFG expression generated by shRNA lentiviral transgenesis (shLFG mice) as well as LFG null mice. We found that LFG plays a role in cerebellar development by affecting cerebellar size, internal granular layer (IGL) thickness, and Purkinje cell (PC) development. All these features are more severe in early developmental stages and show substantial recovery overtime, providing a remarkable example of cerebellar plasticity. In adult mice, LFG plays a role in PC maintenance shown by reduced cellular density and abnormal morphology with increased active caspase 8 and caspase 3 immunostaining in shLFG and knockout (KO) PCs. We studied the mechanism of action of LFG as an inhibitor of the Fas pathway and provided evidence of the neuroprotective role of LFG in cerebellar granule neurons (CGNs) and PCs in an organotypic cerebellar culture system. Biochemical analysis of the Fas pathway revealed that LFG inhibits Fas-mediated cell death by interfering with caspase 8 activation. This result is supported by the increased number of active caspase 8-positive PCs in adult mice lacking LFG. These data demonstrate that LFG is required for proper development and survival of granular and Purkinje cells and suggest LFG may play a role in cerebellar disorders.

Indexed as

AnimalsApoptosisApoptosis Regulatory ProteinsBase SequenceCaspase 3Caspase 8Cell DifferentiationCell SurvivalCerebellumfas ReceptorGene Knockdown TechniquesHeLa CellsHumansMembrane ProteinsMiceMice, KnockoutApoptosis Regulatory ProteinsCasp3 protein, mouseCasp8 protein, mouseCaspase 3Caspase 8FAIM2 protein, humanFAS protein, humanFas protein, mousefas Receptorlifeguard protein, mouseMembrane ProteinsNerve Tissue ProteinsRNA, Small Interfering

Identifiers

PMID21957071
PMCPMC3193209
OpenAlexW1967146210

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.