Related Experiment Video
Updated: May 5, 2026

In Vivo Modeling of the Morbid Human Genome using Danio rerio
Published on: August 24, 2013
Genome-Wide Mendelian Randomization Study Reveals Druggable Genes for Cerebral Small Vessel Disease
Xin-Zhuang Yang1,2, Mei-Ying Huang1, Fei Han1
1Department of Neurology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, China (X.-Z.Y., M.-Y.H., F.H., J.-N., L.-X.Z., M.Y., D.-D.Z., Y.-C.Z.).
Insights
This study used Mendelian randomization to find potential drug targets for cerebral small vessel disease (CSVD). Five druggable genes, including ALDH2 and KLHL24, show promise for CSVD treatment.
Area of Science:
- Genetics
- Neurology
- Pharmacology
Background:
- Cerebral small vessel disease (CSVD) is a group of neurological disorders affecting brain blood vessels.
- Currently, no effective treatments exist for CSVD.
Purpose of the Study:
- To identify candidate therapeutic genes for CSVD using a Mendelian randomization (MR) approach.
- To explore potential mechanisms and adverse effects of targeting these genes.
Main Methods:
- Performed a 2-sample MR analysis using genome-wide association study data for CSVD.
- Assessed gene expression and protein levels in blood and brain tissues.
- Conducted colocalization, mediation, and phenome-wide MR analyses.
Main Results:
- Identified 5 druggable genes associated with CSVD across discovery and validation cohorts.
- ALDH2 and KLHL24 showed associations in both blood and brain tissues.
- ADRB1, BTN3A2, and EFEMP1 were associated in brain tissue only.
Conclusions:
- Provides genetic evidence for targeting specific druggable genes in CSVD treatment.
- Highlights potential therapeutic benefits and aids in prioritizing drug development for CSVD.
Background:
Cerebral small vessel disease (CSVD) is a group of neurological disorders that affect the small blood vessels within the brain, for which no effective treatments are currently available. We conducted a Mendelian randomization (MR) study to identify candidate therapeutic genes for CSVD.
Methods:
We retrieved genome-wide association study data from 6 recently conducted, extensive investigations focusing on CSVD magnetic resonance imaging markers and performed a 2-sample MR analysis to assess the potential causal effects of gene expression and protein level within druggable genes on CSVD in blood and brain tissues. Colocalization analyses and repeat studies were undertaken to verify the relationship. Additionally, mediation analysis was conducted to explore the potential mechanisms involving druggable genes and known risk factors for CSVD. Finally, phenome-wide MR analyses were applied to evaluate the potential adverse effects related to the identified druggable genes for CSVD treatment.
Results:
Overall, 5 druggable genes consistently showed associations with CSVD in MR analyses across both the discovery and validation cohorts. Notably, the ALDH2 and KLHL24 genes were identified as associated with CSVD in both blood and brain tissues, whereas the genes ADRB1, BTN3A2, and EFEMP1 were exclusively detected in brain tissue. Moreover, mediation analysis elucidated the proportion of the total effects mediated by CSVD risk factors through candidate druggable genes, which ranged from 5.5% to 18.5%, and offered potential explanations for the observed results. A comprehensive phenome-wide MR analysis further emphasized both the therapeutic benefits and potential side effects of targeting these candidate druggable genes.
Conclusions:
This study provides genetic evidence supporting the potential therapeutic benefits of targeting druggable genes for treating CSVD, which will be useful for prioritizing CSVD drug development.
More Related Videos
08:22A Novel Strategy Combining Array-CGH, Whole-exome Sequencing and In Utero Electroporation in Rodents to Identify Causative Genes for Brain Malformations
Published on: December 1, 2017
09:34Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
Published on: April 4, 2018
Related Concept Videos
Genome-wide Association Studies-GWAS
GWAS does not require the identification of the target gene involved in...
Principles of Pharmacogenetics: Types of Genetic Variants
Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu
Pharmacogenetics of Drug Metabolism: Overview
Pharmacogenetics of Drug Transporters: P-Glycoprotein and Solute Carrier Transporters
Pharmacogenomics: Identification of New Drug Targets