PLATELET SUPPRESSION BY TIROFIBAN AMELIORATES PULMONARY COAGULATION AND FIBRINOLYSIS ABNORMALITIES IN THE LUNGS OF MOUSE ANTIBODY-MEDIATED TRANSFUSION-RELATED ACUTE LUNG INJURY

被引:3
|
作者
Yuan, Xin [1 ]
Jiang, Peng [1 ]
Qiao, CongChao [1 ]
Su, Na [1 ]
Sun, Pan [1 ]
Lin, Fangzhao [1 ,2 ]
Li, Changqing [1 ,2 ]
机构
[1] Chinese Acad Med Sci & Peking Union Med Coll, Inst Blood Transfus, Chengdu, Sichuan, Peoples R China
[2] Chinese Acad Med Sci & Peking Union Med Coll, Inst Blood Transfus, Chengdu 610052, Sichuan, Peoples R China
来源
SHOCK | 2023年 / 59卷 / 04期
关键词
Coagulation; fibrinolytic; tirofiban; transfusion-related acute lung injury (TRALI); DEPOSITION; PROCOAGULANT; INFLAMMATION; ACTIVATION; EXPRESSION; PATHWAYS; SUPPORT; LAVAGE;
D O I
10.1097/SHK.0000000000002080
中图分类号
R4 [临床医学];
学科分类号
1002 ; 100602 ;
摘要
This study aimed to explore the ameliorating effects of the platelet surface glycoprotein IIb/IIIa receptor antagonist tirofiban on coagulation and fibrinolytic abnormalities in a mouse model of antibody-mediated transfusion-associated acute lung injury (ALI). This is important because ALI is a major cause of death attributable to the occurrence of adverse transfusion reactions. No information on a definite diagnosis or pathological mechanism exists, and targeted treatment options are not available. In this study, wild-type male Balb/c mice aged 8 to 10 weeks were randomly divided into the TRALI model, blank control, tirofiban intervention, and isotype control groups. After different treatment exposures, the mice were observed for 2 h before being killed, and lung tissue samples were collected. To explore the intervention effect of tirofiban, the degree of lung injury was quantified by estimating the lung wet/dry ratio, rectal temperature, survival rate, total protein, and myeloperoxidase and via hematoxylin-eosin staining. Furthermore, the coagulation, anticoagulation, and fibrinolysis assays were measured by automatic coagulation instrument and enzyme-linked immunosorbent assay kits, and the fluorescence densities of platelets and fibrin were quantified using immunofluorescence to analyze the effects of tirofiban on the platelet and fibrin interactions of TRALI. Compared with the TRALI model group, the lung injury indices in the tirofiban intervention group decreased significantly, and survival rates also improved. Furthermore, the level of coagulation and fibrinolytic abnormalities were obviously lower than those in the TRALI model group. In conclusion, our findings suggest that tirofiban might interfere with TRALI by inhibiting platelet activation and improving coagulation and fibrinolytic abnormalities.
引用
收藏
页码:603 / 611
页数:9
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