Related Experiment Video
Updated: May 21, 2026

The bm12 Inducible Model of Systemic Lupus Erythematosus (SLE) in C57BL/6 Mice
Published on: November 1, 2015
Genetic risk factors for thrombosis in systemic lupus erythematosus
Rachel Kaiser1, Yonghong Li, Monica Chang
1UCSF Division of Rheumatology, San Francisco, CA 94143, USA.
Insights
Genetic variants in Factor V Leiden, MTHFR, and FGG are associated with thrombosis risk in systemic lupus erythematosus (SLE) patients. These genetic associations for thrombosis differ across ethnic groups.
Area of Science:
- Genetics
- Rheumatology
- Vascular Medicine
Background:
- Thrombosis is a significant complication in systemic lupus erythematosus (SLE).
- Understanding the genetic underpinnings of thrombosis in SLE is crucial for risk stratification.
Purpose of the Study:
- To investigate the association between genetic variants in thrombosis pathways and the occurrence of thrombosis in two ethnically diverse SLE cohorts.
- To identify specific genetic risk factors for thrombosis in patients with SLE.
Main Methods:
- Utilized discovery (n=1698) and replication (n=1361) SLE cohorts meeting American College of Rheumatology criteria.
- Genotyped 33 single nucleotide polymorphisms (SNPs) associated with thrombosis risk or pathways.
- Performed bivariate and multivariable logistic regression analyses, adjusting for clinical factors.
Main Results:
- Factor V Leiden (FVL) rs6025 and methylenetetrahydrofolate reductase (MTHFR) rs1801133 showed associations with thrombosis risk in white SLE patients.
- Fibrinogen gamma (FGG) rs2066865 was associated with thrombosis risk in Hispanic American SLE patients.
- Specific SNPs in FVL, MTHFR, and FGG demonstrated associations with venous and arterial thrombosis risk, varying by ethnicity.
Conclusions:
- Specific genetic risk factors are implicated in thrombosis development among SLE patients.
- The genetic predisposition to thrombosis in SLE appears to differ across ethnic populations.
Objective:
Thrombosis is a serious complication of systemic lupus erythematosus (SLE). We investigated whether genetic variants implicated in thrombosis pathways are associated with thrombosis among 2 ethnically diverse SLE cohorts.
Methods:
Our discovery cohort consisted of 1698 patients with SLE enrolled in the University of California, San Francisco, Lupus Genetics Project and our replication cohort included 1361 patients with SLE enrolled in the PROFILE cohort. Patients fulfilled American College of Rheumatology SLE criteria, and data relevant to thrombosis were available. Thirty-three single nucleotide polymorphisms (SNP) previously shown to be associated with risk of deep venous thrombosis in the general population or implicated in thrombosis pathways were genotyped and tested for association with thrombosis in bivariate allelic analyses. SNP with p < 0.1 in the bivariate analyses were further tested in multivariable logistic regression models adjusted for age, sex, disease duration, antiphospholipid antibody status, smoking, nephritis, and medications.
Results:
In the discovery cohort, 23% of patients with SLE experienced a thrombotic event. SNP in the following genes demonstrated association with thrombosis risk overall in the discovery or replication cohorts and were assessed using metaanalytic methods: factor V Leiden (FVL) rs6025 (OR 1.85, p = 0.02) and methylenetetrahydrofolate reductase (MTHFR) rs1801133 (OR 0.75, p = 0.04) in whites, and fibrinogen gamma (FGG) rs2066865 (OR 1.91, p = 0.01) in Hispanic Americans. SNP in these genes showed association with venous thrombosis risk in whites: MTHFR rs1801131 (OR 1.51, p = 0.01), MTHFR rs1801133 (OR 0.70, p = 0.04), FVL rs6025 (OR 2.69, p = 0.002), and FGG rs2066865 (OR 1.49, p = 0.02) in whites. A SNP in FGG rs2066865 (OR 2.19, p = 0.003) demonstrated association with arterial thrombosis risk in Hispanics.
Conclusion:
Our results implicate specific genetic risk factors for thrombosis in patients with SLE and suggest that genetic risk for thrombosis differs across ethnic groups.
Related Concept Videos
Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu
Anticoagulant Drugs: Low-Molecular-Weight Heparins
Venous Thrombosis I: Introduction
Disorders of Hemostasis
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
Genome-wide Association Studies-GWAS
GWAS does not require the identification of the target gene involved in...
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase
