Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Meta-Analysis
. 2019 Mar 1;176(3):217-227.
doi: 10.1176/appi.ajp.2018.18070857.

Interrogating the Genetic Determinants of Tourette's Syndrome and Other Tic Disorders Through Genome-Wide Association Studies

Dongmei Yu  1 Jae Hoon Sul  1 Fotis Tsetsos  1 Muhammad S Nawaz  1 Alden Y Huang  1 Ivette Zelaya  1 Cornelia Illmann  1 Lisa Osiecki  1 Sabrina M Darrow  1 Matthew E Hirschtritt  1 Erica Greenberg  1 Kirsten R Muller-Vahl  1 Manfred Stuhrmann  1 Yves Dion  1 Guy Rouleau  1 Harald Aschauer  1 Mara Stamenkovic  1 Monika Schlögelhofer  1 Paul Sandor  1 Cathy L Barr  1 Marco Grados  1 Harvey S Singer  1 Markus M Nöthen  1 Johannes Hebebrand  1 Anke Hinney  1 Robert A King  1 Thomas V Fernandez  1 Csaba Barta  1 Zsanett Tarnok  1 Peter Nagy  1 Christel Depienne  1 Yulia Worbe  1 Andreas Hartmann  1 Cathy L Budman  1 Renata Rizzo  1 Gholson J Lyon  1 William M McMahon  1 James R Batterson  1 Danielle C Cath  1 Irene A Malaty  1 Michael S Okun  1 Cheston Berlin  1 Douglas W Woods  1 Paul C Lee  1 Joseph Jankovic  1 Mary M Robertson  1 Donald L Gilbert  1 Lawrence W Brown  1 Barbara J Coffey  1 Andrea Dietrich  1 Pieter J Hoekstra  1 Samuel Kuperman  1 Samuel H Zinner  1 Pétur Luðvigsson  1 Evald Sæmundsen  1 Ólafur Thorarensen  1 Gil Atzmon  1 Nir Barzilai  1 Michael Wagner  1 Rainald Moessner  1 Roel Ophoff  1 Carlos N Pato  1 Michele T Pato  1 James A Knowles  1 Joshua L Roffman  1 Jordan W Smoller  1 Randy L Buckner  1 A Jeremy Willsey  1 Jay A Tischfield  1 Gary A Heiman  1 Hreinn Stefansson  1 Kári Stefansson  1 Danielle Posthuma  1 Nancy J Cox  1 David L Pauls  1 Nelson B Freimer  1 Benjamin M Neale  1 Lea K Davis  1 Peristera Paschou  1 Giovanni Coppola  1 Carol A Mathews  1 Jeremiah M Scharf  1 Tourette Association of America International Consortium for Genetics, the Gilles de la Tourette GWAS Replication Initiative, the Tourette International Collaborative Genetics Study, and the Psychiatric Genomics Consortium Tourette Syndrome Working Group  1
Affiliations
Meta-Analysis

Interrogating the Genetic Determinants of Tourette's Syndrome and Other Tic Disorders Through Genome-Wide Association Studies

Dongmei Yu et al. Am J Psychiatry. .

Abstract

Objective: Tourette's syndrome is polygenic and highly heritable. Genome-wide association study (GWAS) approaches are useful for interrogating the genetic architecture and determinants of Tourette's syndrome and other tic disorders. The authors conducted a GWAS meta-analysis and probed aggregated Tourette's syndrome polygenic risk to test whether Tourette's and related tic disorders have an underlying shared genetic etiology and whether Tourette's polygenic risk scores correlate with worst-ever tic severity and may represent a potential predictor of disease severity.

Methods: GWAS meta-analysis, gene-based association, and genetic enrichment analyses were conducted in 4,819 Tourette's syndrome case subjects and 9,488 control subjects. Replication of top loci was conducted in an independent population-based sample (706 case subjects, 6,068 control subjects). Relationships between Tourette's polygenic risk scores (PRSs), other tic disorders, ascertainment, and tic severity were examined.

Results: GWAS and gene-based analyses identified one genome-wide significant locus within FLT3 on chromosome 13, rs2504235, although this association was not replicated in the population-based sample. Genetic variants spanning evolutionarily conserved regions significantly explained 92.4% of Tourette's syndrome heritability. Tourette's-associated genes were significantly preferentially expressed in dorsolateral prefrontal cortex. Tourette's PRS significantly predicted both Tourette's syndrome and tic spectrum disorders status in the population-based sample. Tourette's PRS also significantly correlated with worst-ever tic severity and was higher in case subjects with a family history of tics than in simplex case subjects.

Conclusions: Modulation of gene expression through noncoding variants, particularly within cortico-striatal circuits, is implicated as a fundamental mechanism in Tourette's syndrome pathogenesis. At a genetic level, tic disorders represent a continuous spectrum of disease, supporting the unification of Tourette's syndrome and other tic disorders in future diagnostic schemata. Tourette's PRSs derived from sufficiently large samples may be useful in the future for predicting conversion of transient tics to chronic tic disorders, as well as tic persistence and lifetime tic severity.

Keywords: Child Psychiatry; Genetics; Genome-Wide Association Study; Tic Disorders; Tourette Syndrome.

PubMed Disclaimer

Figures

Figure 1.
Figure 1.
Results of the primary Tourette Syndrome GWAS meta-analysis of 4,819 cases and 9,488 controls.
Figure 2.
Figure 2.
Density plot demonstrating the distribution of Tourette syndrome polygenic risk scores (PRS) in population-based Icelandic Tourette cases (purple), tic disorder cases (blue), unscreened population controls (green), and tic negative population controls (orange).
Figure 3.
Figure 3.
Gene expression enrichment analysis of genome-wide Tourette syndrome polygenic risk in 53 adult human tissues.

References

    1. Robertson MM, Eapen V, Singer HS, Martino D, Scharf JM, Paschou P, et al. Gilles de la Tourette syndrome. Nature reviews Disease primers. 2017;3:16097. - PubMed
    1. Mataix-Cols D, Isomura K, Perez-Vigil A, Chang Z, Ruck C, Larsson KJ, et al. Familial Risks of Tourette Syndrome and Chronic Tic Disorders. A Population-Based Cohort Study. JAMA Psychiatry. 2015;72(8):787–93. - PubMed
    1. Pauls D, Fernandez T, Mathews CA, State M, Scharf JM. The inheritance of Tourette Disorder: A review. Journal of obsessive-compulsive and related disorders. 2014;3:380–285. - PMC - PubMed
    1. Huang AY, Yu D, Davis LK, Sul JH, Tsetsos F, Ramensky V, et al. Rare Copy Number Variants in NRXN1 and CNTN6 Increase Risk for Tourette Syndrome. Neuron. 2017;94(6):1101–11 e7. - PMC - PubMed
    1. Willsey AJ, Fernandez TV, Yu D, King RA, Dietrich A, Xing J, et al. De Novo Coding Variants Are Strongly Associated with Tourette Disorder. Neuron. 2017;94(3):486–99 e9. - PMC - PubMed

Publication types

MeSH terms

Substances

Grants and funding