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[Synergistic effect of deficiency in thrombosis-related genes]
Yue-chun Shen1, Bi-hui Luo, Bi-ru Ou
1Department of Cardiology, First Affiliated Hospital, Guangzhou Medical College, Guangzhou, Guangdong, 510120 PR China.
Objective:
To investigate the interaction of deficiency in thrombosis-related gene in a mouse model.
Methods:
To generate mice carrying mutations in alpha-galactosidase A (Gla) and factor V Leiden (Fvl) and analyze the phenotypes, namely, tissue fibrin deposition and thrombus formation in organs.
Results:
Fibrin deposition in organs of mice carrying both mutations in Gla and Fvl was significantly increased compared with that in mice with single mutaton: [Gla(-/0) Fv(Q/Q)+Gla(-/-)Fv(Q/Q)] vs.[Gla(-/0)Fv(+/+)]=(0.28+/-0.03)% vs.(0.07+/-0.007)%, P<0.01; [Gla(-/0)Fv(Q/Q)+Gla(-/-)Fv(Q/Q)] vs.[Gla(+/0)Fv(Q/Q)+Gla(+/+)Fv(Q/Q)]=(0.28+/-0.03)% vs.(0.11+/-0.02)%, P< 0.01. Meanwhile, the number of thrombi on organ sections of mice carrying both mutations in Gla and Fvl was significantly increased compared with the single mutation carrier: [Gla(-/0)Fv(Q/Q)+Gla(-/-)Fv(Q/Q)] vs.[Gla(-/0)Fv(+/+)]=1.9+/-0.7 vs. 0.0+/-0.0, P<0.05; [Gla(-/0)Fv(Q/Q)+Gla(-/-)Fv(Q/Q)] vs. [Gla(+/0)Fv(Q/Q)+Gla(+/+)Fv(Q/Q)]=1.9+/-0.7 vs. 0.3+/-0.1, P<0.05.
Conclusion:
These observations demonstrated that there was synergistic effect in Gla and Fvl deficiency in mice. It suggested that there could be a combination of GLA deficiency and FVL or other thrombosis-related gene defect in patients with genetic severe early-onset thrombosis.
Insights
Combined deficiency in alpha-galactosidase A (Gla) and factor V Leiden (Fvl) genes in mice led to significantly increased fibrin deposition and thrombus formation. This suggests a synergistic effect between Gla and Fvl deficiencies in thrombosis.
Area of Science:
- Genetics
- Hematology
- Molecular Biology
Context:
- Thrombosis is a significant health concern, often influenced by genetic factors.
- Understanding gene interactions in thrombosis is crucial for identifying disease mechanisms.
- Deficiencies in specific genes, such as alpha-galactosidase A (Gla) and factor V Leiden (Fvl), are implicated in thrombotic events.
Purpose:
- To investigate the synergistic interaction between alpha-galactosidase A (Gla) deficiency and factor V Leiden (Fvl) mutation in a mouse model.
- To analyze the impact of combined Gla and Fvl gene deficiencies on thrombosis-related phenotypes, including fibrin deposition and thrombus formation.
Summary:
- Mice with combined Gla and Fvl gene deficiencies exhibited significantly increased fibrin deposition in organs compared to single-mutation carriers.
- A notable increase in the number of thrombi was observed in mice with both Gla and Fvl deficiencies.
- These findings demonstrate a synergistic effect of Gla and Fvl deficiencies on thrombosis in a murine model.
Impact:
- The study highlights a potential synergistic interaction between GLA deficiency and FVL or other thrombosis-related gene defects.
- These findings suggest a possible genetic basis for severe early-onset thrombosis in patients with combined genetic deficiencies.
- This research provides insights into the complex genetic landscape of thrombosis and may inform future diagnostic and therapeutic strategies.
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