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作 者:沈粤春[1] 罗碧辉[1] 区碧如[1] 陈爱兰[1] 王晓明[2] 李君[2]
机构地区:[1]广州医学院第一附属医院心血管内科,510120 [2]广州医学院第一附属医院心血管外科,510120
出 处:《中华医学遗传学杂志》2010年第3期246-249,共4页Chinese Journal of Medical Genetics
摘 要:目的 探讨血栓相关基因缺陷之间在体内的相互作用.方法 由α-半乳糖苷酶A(α-galactosidase A,Gla)缺乏和凝血因子V Leiden(factor V I.eiden,Fvl)基因突变小鼠建立二者复合基因突变小鼠,通过器官组织学分析,评价致病基因表现型-纤维蛋白沉积和血栓形成情况.结果 Gla缺乏与Fvl复合基因突变小鼠的器官纤维蛋白沉积较二者之一单独突变明显增加.复合突变比Gla缺乏=Gla/0FvQ/Q和Gla/FvQ/Q 比Gla-/0 Fv+/+=(0.28±0.03)%vs.(0.07±0.007)%,P〈0.01;复合突变比Fvl 突变=Gla/0FvQ/Q和Gla-/- FvQ/Q 比Gla+/0 FvQ/Q和Gla+/+ FvQ/Q=(0.28±0.03)%vs.(0.11±0.02)%,P〈0.01.同时,Gla缺乏与Fvl复合基因突变小鼠的器官断面血栓形成数日也分别较二者之一明显增加.复合突变比Gla缺乏=1.9±0.7 vs.0.0±0.0,P〈0.05;复合突变比Fvl突变=1.9±0.7 vs.0.3±0.1,P〈0.05.结论 Gla缺乏与Fvl突变在小鼠体内相互加重血栓前状态和血栓形成,临床上GLA缺乏、FVL突变或其它血栓相关基因缺陷患者出现早发和严重的血栓疾病可能合并其它遗传性血栓相关的基因缺陷.Objective To investigate the interaction of deficiency in thrombosis-related gene in a mouse model. Methods To generate mice carrying mutations in α-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-/0FvQ/Q + Gla-/- FvQ/Q) vs. (Gla-/0Fv+/+ ) = (0.28±0.03)% vs. (0. 07±0. 007)%, P〈0. 01, (Gla /0 FvQ/Q + Gla-/- FvQ/Q) vs. (Gla+/0 FvQ/Q + Gla+/+FvQ/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-/-FvQ/Q + Gla-/-FvQ/Q) vs. (Gla /0Fv+/+) = 1. 9 + 0. 7 vs. 0.0 + 0.0, P〈 0.05, (Gla /0FvQ/Q + Gla-/-FvQ/Q) vs. (Gla+/0FvQ/Q + Gla+/+FvQ/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.
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