1.中山大学中山医学院药理学教研室和心脑血管研究中心,广东 广州 510080
2.中山大学附属第三医院特诊医疗病区, 广东 广州 510630
李俊,硕士生,E-mail:lijun253@mail2.sysu.edu.cn
收稿:2021-02-08,
纸质出版:2021-07-20
移动端阅览
李俊,杨涵滟,韩慧等.CFTR通过调控二磷酸腺苷受体P2Y12影响血小板活化[J].中山大学学报(医学科学版),2021,42(04):521-527.
LI Jun,YANG Han-yan,HAN Hui,et al.CFTR Regulates Platelet Activation via the P2Y12-Mediated Signaling Pathway[J].Journal of Sun Yat-sen University(Medical Sciences),2021,42(04):521-527.
李俊,杨涵滟,韩慧等.CFTR通过调控二磷酸腺苷受体P2Y12影响血小板活化[J].中山大学学报(医学科学版),2021,42(04):521-527. DOI: 10.13471/j.cnki.j.sun.yat-sen.univ(med.sci).2021.0406.
LI Jun,YANG Han-yan,HAN Hui,et al.CFTR Regulates Platelet Activation via the P2Y12-Mediated Signaling Pathway[J].Journal of Sun Yat-sen University(Medical Sciences),2021,42(04):521-527. DOI: 10.13471/j.cnki.j.sun.yat-sen.univ(med.sci).2021.0406.
目的
2
二磷酸腺苷受体P2Y
12
介导的血小板活化是血小板活化及血栓形成的核心机制,本研究探讨囊性纤维化跨膜转导调节子(CFTR)对P2Y
12
介导的血小板活化的影响。
方法
2
应用8~16周龄
CFTR
全基因敲除(
Cftr
-/-
)小鼠及野生型(
Cftr
+/+
)小鼠,分别制备胶原蛋白和肾上腺素诱导的肺栓塞小鼠模型。分离
Cftr
-/-
和
Cftr
+/+
小鼠外周血的血小板, 采用免疫印迹技术检测P2Y
12
、PI3K以及AKT 总蛋白及磷酸化蛋白的表达。采用二磷酸腺苷(ADP)孵育人巨核细胞株Meg-01,检测ADP对CFTR和上述蛋白表达的影响。进一步应用特异性CFTR氯通道抑制剂CFTRinh-172与Meg-01细胞共孵育,检测其对CFTR和上述蛋白表达的影响。
结果
2
与
Cftr
+/+
小鼠肺栓塞模型组相比,
Cftr
-/-
鼠肺栓塞组织切片栓塞显著增加。
Cftr
-/-
显著增加小鼠外周血血小板P2Y
12
、磷酸化PI3K和AKT 蛋白表达。
P2Y
12
全基因敲除小鼠血小板CFTR蛋白表达无明显改变,上述结果提示CFTR负性调控P2Y
12
维持正常血小板活化功能。Meg-01细胞实验结果表明 ADP浓度依赖性地诱导Meg-01细胞P2Y
12
蛋白和PI3K以及AKT蛋白磷酸化增高,而CFTR蛋白表达水平逐渐降低。CFTR 特异性阻断剂CFTRinh-172显著诱导Meg-01细胞P2Y
12
蛋白表达增高。
结论
2
本研究揭示了血小板活化的一个新机制,即CFTR通过调控血小板P2Y
12
蛋白表达影响血小板活化。
Objective
2
Platelet activation mediated by adenosine diphosphate receptor P2Y
12
is critical for platelet activation and thrombosis formation. The goal of the presented study was to investigate the role of CFTR in platelet activation mediated by P2Y
12
.
Methods
2
8-week-old
CFTR
knockout (
Cftr
-/-
) mice and age-matched wild-type (
Cftr
+/+
) mice were used to set up collagen and epinephrine-induced pulmonary embolism mouse models. The lung sections were prepared to observe the pulmonary embolism. The circulating platelets were isolated from peripheral blood of
Cftr
-/-
and
Cftr
+/+
mice, and were used to detect protein expressions of P2Y
12
, p-PI3K and p-AKT by western blot analysis. The above signaling proteins were also detected in human-derived megakaryocyte cell strains (Meg-01) treated with different concentration of adenosine diphosphate (ADP). CFTRinh-172, a selective CFTR chloride channel blocker was also applied to observe how CFTR affected the protein level of P2Y
12
in Meg-01 cells.
Results
2
In the pulmonary embolism model, the embolization area in lung tissue sections from
Cftr
-/-
mice were significantly larger than that of
Cftr
+/+
mice. Compared with
Cftr
+/+
mice, the protein expression of P2Y
12
, p-PI3K and p-AKT in circulating platelets of
Cftr
-/-
mice was significantly elevated. However, no change was found in the protein expression of platelet CFTR in
P2Y
12
knockout mice, which suggested that CFTR might be in the upstream of P2Y
12
in the regulating mechanism of platelet activation. In Meg-01 cells, ADP concentration-dependently induced P2Y
12
protein expression but decreased CFTR expression. The incubation of Meg-01 cells with CFTR
Inh
-172 could significantly increase P2Y
12
expression.
Conclusions
2
This study revealed a new mechanism of platelet activation, that is, CFTR may regulate platelet activation by regulating P2Y
12
-mediated signaling pathway.
Yeung J , Li W , Holinstat M . Platelet signaling and disease: Targeted therapy for thrombosis and other related diseases [J]. Pharmacol Rev , 2018 , 70 ( 3 ): 526 - 548 .
Gratacap MP , Hérault JP , Payrastre B , et al . FcgammaRIIA requires a Gi-dependent pathway for an efficient stimulation of phosphoinositide 3-kinase, calcium mobilization, and platelet aggregation [J]. Blood , 2000 , 96 ( 10 ): 3439 - 3446 .
Trumel C , Payrastre B , Gachet C , et al . A key role of adenosine diphosphate in the irreversible platelet aggregation induced by the PAR1-activating peptide through the late activation of phosphoinositide 3-kinase [J]. Blood , 1999 , 94 ( 12 ): 4156 - 4165 .
Jackson SP , Yap CL , Anderson KE . Phosphoinositide 3-kinases and the regulation of platelet function [J]. Biochem Soc Trans , 2004 , 32 ( Pt 2 ): 387 - 392 .
Gratacap MP , Guillermet-Guibert J , Payrastre B , et al . Regulation and roles of PI3Kβ, a major actor in platelet signaling and functions [J]. Adv Enzyme Regul , 2011 , 51 ( 1 ): 106 - 116 .
Dangelmaier C , Jin J , Kunapuli SP , et al . Potentiation of thromboxane A2-induced platelet secretion by Gi signaling through the phosphoinositide-3 kinase pathway [J]. Thromb Haemost , 2001 , 85 ( 2 ): 341 - 348 .
Riordan JR , Rommens JM , Kerem B , et al . Identification of the cystic fibrosis gene: cloning and characterization of complementary DNA [J]. Science , 1989 , 245 ( 4922 ): 1066 - 1073 .
Kerem E , Corey M , Kerem BS , et al . The relation between genotype and phenotype in cystic fibrosis analysis of the most common mutation (delta F508) [J]. N Engl J Med , 1990 , 323 ( 22 ): 1517 - 1522 .
Gibson RL , Burns JL , Ramsey BW , et al . Pathophysiology and management of pulmonary infections in cystic fibrosis [J]. Am J Respir Crit Care Med , 2003 , 168 : 918 - 951 .
O'Sullivan BP , Linden MD , Frelinger AL . Platelet activation in cystic fibrosis [J]. Blood , 2005 , 105 ( 12 ): 4635 - 4641 .
Ortiz-Muñoz G , Yu MA , Looney MR , et al . Cystic fibrosis transmembrane conductance regulator dysfunction in platelets drives lung hyperinflammation [J]. J Clin Invest , 2020 , 130 ( 4 ): 2041 - 2053 .
Ma MM , Jin CC , Wang GL , et al . Clcn3 deficiency ameliorates high-fat diet-induced obesity and adipose tissue macrophage inflammation in mice [J]. Acta Pharmacol Sin , 2019 , 40 ( 12 ): 1532 - 1543 .
Zimmerman GA . Platelets: inflammatory effector cells in the conflagration of cystic fibrosis lung disease [J]. J Clin Invest , 2020 , 130 ( 4 ): 1632 - 1634 .
Ma T , Thiagarajah JR , Verkman AS , et al . Thiazolidinone CFTR inhibitor identified by high-throughput screening blocks cholera toxin-induced intestinal fluid secretion [J]. J Clin Invest , 2002 , 110 ( 11 ): 1651 - 1658 .
Bustamante AE , Jaime-PeÂrez JC , Cordero-PeÂrez P , et al . A high level of soluble CD40L is associated with P.aeruginosa infection in patients with cystic fibrosis [J]. PLoS one , 2006 , 11 ( 12 ): e0168819 .
Lindberg U , Svensson L , Shannon O , et al . Increased platelet activation occurs in cystic fibrosis patients and correlates to clinical status [J]. Thromb Re , 2018 , 162 : 32 - 37 .
Murugappa S , Kunapuli SP . The role of ADP receptors in platelet function [J]. Front Biosci , 2006 , 11 : 1977 - 1986 .
O'Brien KA , Gartner TK , Du X , et al . ADP-stimulated activation of Akt during integrin outside-in signaling promotes platelet spreading by inhibiting glycogen synthase kinase-3β [J]. Arterioscler Thromb Vasc Biol , 2012 , 32 ( 9 ): 2232 - 2240 .
黎国德 , 许庆波 , 韩克栋 . MTHFR基因多态性对冠心病合并高血压患者氯吡格雷耐受性的影响 [J]. 广东医学 , 2020 , 41 ( 1 ): 91 - 96 .
Li GF , Xu QB , Han KD . Effect of MTHFR gene polymorphism on clopidogrel tolerance in patients with coronary disease complicated with hypertension [J]. Guangdong Med J , 2020 , 41 ( 1 ): 91 - 96 .
Ngo ATP , Sheriff J , Haley KM , et al . Assessment of neonatal, cord, and adult platelet granule trafficking and secretion [J]. Platelets , 2020 , 31 ( 1 ): 68 - 78 .
0
浏览量
194
下载量
1
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621
