Evidence map›Paper›PMID 19643914›Full record

ArticleHuman molecular genetics2009

Transcriptional dysregulation of TrkA associates with neurodegeneration in spinocerebellar ataxia type 17.

Anjali G Shah, Meyer J Friedman, Shanshan Huang, Meredith Roberts, Xiao-Jiang Li, Shihua Li

Open access · bronzeAbstract read
In one paragraph

Article in Human molecular genetics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.4field-weighted citation impact, top 22% 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, 40 citations in OpenAlex.

  1. Review
  2. Review
  3. The roles of TAF1 in neuroscience and beyond.Royal Society open science · 2024
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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

6 authors at 1 institution in 1 country.

Anjali G ShahDepartment of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA.
Meyer J Friedman
Shanshan Huang
Meredith Roberts
Xiao-Jiang Li
Shihua Li
Emory University · US

Funding

PREDOCTORAL TRAINING PROGRAM IN GENETICST32GM008490 · NIGMS · EMORY UNIVERSITY · PI BOSS, JEREMY M. · 1993 to 2022
$8.0M
Nuclear Toxicity of Huntington Disease ProteinR01NS041669 · NINDS · EMORY UNIVERSITY · PI LI, XIAO-JIANG · 2001 to 2015
$4.6M
Synaptic toxicity of Huntington disease proteinR01AG019206 · NIA · EMORY UNIVERSITY · PI LI, XIAO-JIANG · 2001 to 2016
$4.5M
Polyglutamine expansion and neuropathologyR01NS045016 · NINDS · EMORY UNIVERSITY · PI LI, SHI-HUA · 2004 to 2013
$2.9M
Glial huntingtin and neuronal excitotoxicityR01AG031153 · NIA · EMORY UNIVERSITY · PI LI, SHI-HUA · 2009 to 2013
$1.5M
Synaptic accumulation of misfolded proteins and neurodegenerationR56AG019206 · NIA · EMORY UNIVERSITY · PI JIN, PENG · 2018 to 2018
$489k
NIA NIH HHS AG019206NIA NIH HHS R01 AG019206NIA NIH HHS R01 AG031153NIA NIH HHS R56 AG019206NIGMS NIH HHS T32 GM008490NINDS NIH HHS NS041669NINDS NIH HHS NS0465016NINDS NIH HHS R01 NS041669NINDS NIH HHS R01 NS045016
6 · The paper itself

Abstract

TATA binding protein (TBP), a universal transcription factor, is broadly required by nuclear RNA polymerases for the initiation of transcription. TBP contains a polymorphic polyglutamine tract in its N-terminal region, and expansion of this tract leads to spinocerebellar ataxia type 17 (SCA17), one of nine dominantly inherited neurodegenerative diseases caused by polyglutamine expansion in the affected proteins. The expanded polyglutamine proteins are ubiquitously expressed, but cause selective and characteristic neurodegeneration in distinct brain regions in each disease. Unlike many other polyglutamine proteins, whose functions are not yet fully understood, TBP is a well-characterized transcription factor that is restricted to the nucleus. Thus, investigating how mutant TBP mediates neuropathology should help elucidate the mechanisms by which transcriptional dysregulation contributes to neuronal dysfunction and/or neurodegeneration in polyglutamine diseases. To this end, we characterized cellular and mouse models expressing polyQ-expanded TBP. The cell model exhibits characteristic features of neuronal dysfunction, including decreased cell viability and defective neurite outgrowth. We found that the high-affinity nerve growth factor receptor, TrkA, is down-regulated by mutant TBP in cells. Down-regulation of TrkA also occurs in the cerebellum of SCA17 transgenic mice prior to Purkinje cell degeneration. Mutant TBP binds more Sp1, reduces its occupancy of the TrkA promoter and inhibits the activity of the TrkA promoter. These findings suggest that the transcriptional down-regulation of TrkA by mutant TBP contributes to SCA17 pathogenesis.

Indexed as

AnimalsBlotting, WesternCell SurvivalCerebellumGene ExpressionGreen Fluorescent ProteinsHumansMiceMice, TransgenicMicroscopy, FluorescenceMutationNerve DegenerationNeuritesPC12 CellsProtein BindingPurkinje CellsGreen Fluorescent ProteinsReceptor, trkATATA-Box Binding Protein

Identifiers

PMID19643914
PMCPMC2758144
OpenAlexW2129194953

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.