Clustering Schizophrenia Genes by Their Temporal Expression Patterns Aids Functional Interpretation
Abstrak
Abstract Background Schizophrenia is a highly heritable brain disorder with a typical symptom onset in early adulthood. The 2-hit hypothesis posits that schizophrenia results from differential early neurodevelopment, predisposing an individual, followed by a disruption of later brain maturational processes that trigger the onset of symptoms. Study design We applied hierarchical clustering to transcription levels of 345 genes previously linked to schizophrenia, derived from cortical tissue samples from 56 donors across the lifespan. We subsequently calculated clustered-specific polygenic risk scores for 743 individuals with schizophrenia and 743 sex- and age-matched healthy controls. Study results Clustering revealed a set of 183 genes that was significantly upregulated prenatally and downregulated postnatally and 162 genes that showed the opposite pattern. The prenatally upregulated set of genes was functionally annotated to fundamental cell cycle processes, while the postnatally upregulated set was associated with the immune system and neuronal communication. We found an interaction between the 2 scores; higher prenatal polygenic risk showed a stronger association with schizophrenia diagnosis at higher levels of postnatal polygenic risk. Importantly, this finding was replicated in an independent clinical cohort of 3233 individuals. Conclusions We provide genetics-based evidence that schizophrenia is shaped by disruptions of separable biological processes acting at distinct phases of neurodevelopment. The modeling of genetic risk factors that moderate each other’s effect, informed by the timing of their expression, will aid in a better understanding of the development of schizophrenia.
Penulis (71)
Dennis van der Meer
Weiqiu Cheng
Jaroslav Rokicki
Sara Fernandez-Cabello
Alexey Shadrin
Olav B Smeland
Friederike Ehrhart
Sinan Gülöksüz
Lotta-Katrin Pries
Bochao Lin
Bart P F Rutten
Jim van Os
Michael O’Donovan
Alexander L Richards
Nils Eiel Steen
Srdjan Djurovic
Lars T Westlye
Ole A Andreassen
Tobias Kaufmann
Genetic Risk and Outcome of Psychosis investigators (GROUP)
Eduardo J Aguilar
Berna Akdede
Köksal Alptekin
Vesile Altınyazar
Silvia Amoretti
Sanja Andric-Petrovic
Celso Arango
Manuel Arrojo
Cem Atbaşoğlu
Miguel Bernardo
Tolga Binbay
Julio Bobes
Eylem Şahin Cankurtaran
Angel Carracedo
Burçin Cihan
Philippe Delespaul
Maria Paz García-Portilla
Javier González-Peñas
Sinan Guloksuz
Güvem Gümüş-Akay
Estela Jiménez-López
Semra Ulusoy Kaymak
Gunter Kenis
Bochao D Lin
Gonzalo López
Jurjen J Luykx
Nadja P Maric
Gisela Mezquida
Marina M Mihaljevic
Tijana Mirjanic
Mara Parellada
Katrin Pries
Olga Rivero
Bart P F Rutten
Pilar A Saiz
Meram Can Saka
Julio Sanjuan
José Luis Santos
Haldun Soygür
Alp Üçok
Halis Ulaş
Jim van Os
Berna Yalınçetin
European Network of National Schizophrenia Networks Studying Gene-Environment Interactions Work Package 6 (EU-GEI WP6)
Behrooz Z Alizadeh
Therese van Amelsvoort
Wiepke Cahn
Lieuwe de Haan
Frederike Schirmbeck
Jim van Os
Wim Veling
Akses Cepat
- Tahun Terbit
- 2023
- Bahasa
- en
- Total Sitasi
- 3×
- Sumber Database
- CrossRef
- DOI
- 10.1093/schbul/sbad140
- Akses
- Open Access ✓