Genome‐wide association study for Alzheimer's disease related complement components and regulators

Sparad:
Bibliografiska uppgifter
I publikationen:Alzheimer's & Dementia vol. 21 (Dec 1, 2025)
Huvudupphov: Clayton, Samantha
Övriga upphov: Jun, Gyungah R
Utgiven:
John Wiley & Sons, Inc.
Ämnen:
Länkar:Citation/Abstract
Full Text - PDF
Taggar: Lägg till en tagg
Inga taggar, Lägg till första taggen!

MARC

LEADER 00000nab a2200000uu 4500
001 3286756182
003 UK-CbPIL
022 |a 1552-5260 
022 |a 1552-5279 
024 7 |a 10.1002/alz70855_107268  |2 doi 
035 |a 3286756182 
045 0 |b d20251201 
100 1 |a Clayton, Samantha  |u Boston University School of Medicine, Boston, MA, USA, 
245 1 |a Genome‐wide association study for Alzheimer's disease related complement components and regulators 
260 |b John Wiley & Sons, Inc.  |c Dec 1, 2025 
513 |a Journal Article 
520 3 |a Background Alzheimer's disease (AD) is a progressive neurodegenerative disorder characterized by buildup of amyloid‐beta plaques and tau tangles. Previous studies demonstrate involvement of complement pathway in AD. Investigating genetic factors influencing plasma levels of complement pathway genes may uncover critical mechanisms underlying AD. Method We first conducted association of plasma levels of complement related proteins with domain specific cognitive scores including executive function, language, and memory scores in 2,476 Framingham Heart Study (FHS) participants. We conducted genome‐wide association studies (GWAS) with the selected complement proteins as quantitative outcomes, adjusting for age at exam, sex, family structure, and three principal components included as covariates. We excluded loci around genes encoding testing complement proteins. Result We observed the 29 proteins with nominally significant associations (p&#xa0;<0.05) with at least one domain‐specific cognitive scores (best P with C1r and executive function: p&#xa0;=&#xa0;1.45x10‐11). VTN, MBL2, FCN3, CFI, C8, C5, and C1r were nominally significant with both executive function and language. C5 and MBL2 were negatively associated with these scores, while the other five had increased expression with higher scores. We conducted 29 GWASs and identified 57 genome‐wide significant (GWS) single nucleotide polymorphisms (SNPs). Intronic SNP, rs147931340, from GPSM1 was GWS across different complement proteins including C1r (p&#xa0;=&#xa0;6.12x10‐13), C8 (p&#xa0;=&#xa0;5.00x10‐10), FCN3 (p&#xa0;=&#xa0;2.05x10‐11), and MBL2 (p&#xa0;=&#xa0;4.36x10‐12). An intergenic SNP rs28378835 between ONECUT3 and TCF3 was GWS for C1r (p&#xa0;=&#xa0;5.87x10‐12), FCN3 (p&#xa0;=&#xa0;6.65x10‐9), and MBL2 (p&#xa0;=&#xa0;1.17x10‐8). These variants were associated with increased expression with all but MBL2. Conclusion Our study identified significant associations between plasma levels of complement proteins and domain‐specific cognitive scores, highlighting their potential relevance to Alzheimer's disease (AD) pathology. These findings provide valuable insights into the genetic regulation of complement pathways in AD and suggest potential mechanisms underlying their role in cognitive decline. 
653 |a Alzheimer's disease 
653 |a Function 
653 |a Genomics 
653 |a Encoding (Cognitive process) 
653 |a Family structure 
653 |a Genomes 
653 |a Genes 
653 |a Cognition 
653 |a Genetics 
653 |a Plasma levels 
653 |a Proteins 
653 |a Pathology 
653 |a Cognitive impairment 
653 |a Variants 
653 |a Encoding 
653 |a Executive function 
653 |a Disease 
700 1 |a Jun, Gyungah R  |u Department of Medicine (Biomedical Genetics), Boston University Chobanian &amp;amp; Avedisian School of Medicine, Boston, MA, USA, 
773 0 |t Alzheimer's & Dementia  |g vol. 21 (Dec 1, 2025) 
786 0 |d ProQuest  |t Consumer Health Database 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/3286756182/abstract/embedded/L8HZQI7Z43R0LA5T?source=fedsrch 
856 4 0 |3 Full Text - PDF  |u https://www.proquest.com/docview/3286756182/fulltextPDF/embedded/L8HZQI7Z43R0LA5T?source=fedsrch