Cellular and Molecular Life Sciences

, Volume 73, Issue 16, pp 3205–3215

Evidence of TAF1 dysfunction in peripheral models of X-linked dystonia-parkinsonism

  • Aloysius Domingo
  • David Amar
  • Karen Grütz
  • Lillian V. Lee
  • Raymond Rosales
  • Norbert Brüggemann
  • Roland Dominic Jamora
  • Eva Cutiongco-dela Paz
  • Arndt Rolfs
  • Dirk Dressler
  • Uwe Walter
  • Dimitri Krainc
  • Katja Lohmann
  • Ron Shamir
  • Christine Klein
  • Ana Westenberger
Original Article

DOI: 10.1007/s00018-016-2159-4

Cite this article as:
Domingo, A., Amar, D., Grütz, K. et al. Cell. Mol. Life Sci. (2016) 73: 3205. doi:10.1007/s00018-016-2159-4

Abstract

The molecular dysfunction in X-linked dystonia-parkinsonism is not completely understood. Thus far, only noncoding alterations have been found in genetic analyses, located in or nearby the TATA-box binding protein-associated factor 1 (TAF1) gene. Given that this gene is ubiquitously expressed and is a critical component of the cellular transcription machinery, we sought to study differential gene expression in peripheral models by performing microarray-based expression profiling in blood and fibroblasts, and comparing gene expression in affected individuals vs. ethnically matched controls. Validation was performed via quantitative polymerase chain reaction in discovery and independent replication sets. We observed consistent downregulation of common TAF1 transcripts in samples from affected individuals in gene-level and high-throughput experiments. This signal was accompanied by a downstream effect in the microarray, reflected by the dysregulation of 307 genes in the disease group. Gene Ontology and network analyses revealed enrichment of genes involved in RNA polymerase II-dependent transcription, a pathway relevant to TAF1 function. Thus, the results converge on TAF1 dysfunction in peripheral models of X-linked dystonia-parkinsonism, and provide evidence of altered expression of a canonical gene in this disease. Furthermore, our study illustrates a link between the previously described genetic alterations and TAF1 dysfunction at the transcriptome level.

Keywords

Microarray Expression profiling Transcriptomics Transcriptional dysregulation Neurodegeneration 

Abbreviations

Gene names

ACRC

Acid repeat-containing gene

ATP6V0E2

ATPase, H+ transporting, lysosomal, 9-kD, V0 subunit E2

BHLHE40

Basic helix-loop-helix family, member E40

CXCR3

Chemokine, CXC motif, receptor 3

DBN1

Drebrin E

DUSP1

Dual-specificity phosphatase 1

EFNB1

Ephrin B1

ETV3

ETS variant gene 3

GRIN2D

Glutamate receptor, ionotropic, N-methyl-d-aspartate, subunit 2D

GZF1

GDNF-inducible zinc finger protein 1

KCND2

Potassium voltage-gated channel, Shal-related subfamily, member 2

MRPS6

Mitochondrial ribosomal protein S6

OGT

O-linked N-acetylglucosamine transferase

PRDM1

PR-domain containing protein 1

SLC5A3

Solute carrier family 5 (inositol transporter), member 3

SRF

Serum response factor

SYTL2

Synaptotagmin-like 2

TAF1

TATA-box binding protein-associated factor 1

TBP

TATA-box binding protein

ZADH2

Zinc alcohol dehydrogenase

ZC3H12A

Zinc finger CCCH domain-containing protein 12A

Others

DEG

Differentially expressed gene

DSC

Disease-specific single-nucleotide change

GO

Gene ontology

HD

Huntington’s disease

MTS

Multiple transcript system

SAM

Significance analysis of microarrays

XDP

X-linked dystonia-parkinsonism

Supplementary material

18_2016_2159_MOESM1_ESM.pdf (99 kb)
Supplementary Fig. 1. Study workflow showing the high-throughput (microarray-based, left-side) and gene-level (qPCR-based, right-side) experiments and analyses. One lane on the microarray had a defect that was undetected during hybridization but was later made obvious by quality control assessments. The blood-derived sample from an affected individual was not included in further analyses. (PDF 98 kb)
18_2016_2159_MOESM2_ESM.pdf (296 kb)
Supplementary Fig. 2. Expression in various parts of the brain of the different genes chosen for follow-up. Data is derived from the UK Brain Expression Consortium (http://www.braineac.org/). From top left, clockwise: transcript-level expression of SYTL2, SLC5A3, EFNB1, MRPS6, BHLHE40, KCND2, ATP6V0E2, TAF1. (PDF 296 kb)
18_2016_2159_MOESM3_ESM.xlsx (55 kb)
Supplementary material 3 (XLSX 55 kb)

Funding information

Funder NameGrant NumberFunding Note
Bachmann-Strauss Dystonia and Parkinson Foundation
    Fritz Thyssen Stiftung

      Copyright information

      © Springer International Publishing 2016

      Authors and Affiliations

      • Aloysius Domingo
        • 1
        • 2
      • David Amar
        • 3
      • Karen Grütz
        • 1
      • Lillian V. Lee
        • 4
      • Raymond Rosales
        • 5
      • Norbert Brüggemann
        • 1
        • 6
      • Roland Dominic Jamora
        • 7
      • Eva Cutiongco-dela Paz
        • 8
        • 9
      • Arndt Rolfs
        • 10
      • Dirk Dressler
        • 11
      • Uwe Walter
        • 12
      • Dimitri Krainc
        • 13
      • Katja Lohmann
        • 1
      • Ron Shamir
        • 3
      • Christine Klein
        • 1
      • Ana Westenberger
        • 1
      1. 1.Institute of NeurogeneticsUniversity of LübeckLübeckGermany
      2. 2.Graduate School LübeckUniversity of LübeckLübeckGermany
      3. 3.Edmond J. Safra Center for BioinformaticsTel Aviv UniversityTel AvivIsrael
      4. 4.XDP Study GroupPhilippine Children’s Medical CenterQuezon CityPhilippines
      5. 5.Department of Neurology and PsychiatryUniversity of Santo TomasManilaPhilippines
      6. 6.Department of NeurologyUniversity Hospital Schleswig–Holstein, University of LübeckLübeckGermany
      7. 7.Department of Neurosciences, College of Medicine, Philippine General HospitalUniversity of the Philippines ManilaManilaPhilippines
      8. 8.National Institutes of HealthUniversity of the Philippines ManilaManilaPhilippines
      9. 9.Philippine Genome CenterUniversity of the PhilippinesQuezon CityPhilippines
      10. 10.Albrecht-Kossel-Institute for NeuroregenerationUniversity of RostockRostockGermany
      11. 11.Department of NeurologyHannover Medical SchoolHannoverGermany
      12. 12.Department of NeurologyUniversity of RostockRostockGermany
      13. 13.Northwestern University Feinberg School of MedicineChicagoUSA

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