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Recombinant Gas6 augments Axl and facilitates immune restoration in an intracerebral hemorrhage mouse model

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单位: [1]Loma Linda Univ, Sch Med, Dept Anesthesiol, Loma Linda, CA 92350 USA [2]Zhejiang Univ, Affiliated Hosp 2, Sch Med, Dept Neurol, Hangzhou 310009, Zhejiang, Peoples R China [3]Zhejiang Univ, Affiliated Hosp 2, Sch Med, Dept Neurosurg, Hangzhou, Zhejiang, Peoples R China [4]Tong Ji Hosp,Dept Neurosurg,Wuhan,Peoples R China [5]Jilin Univ, Hosp 1, Neurosci Ctr, Dept Neurol, Changchun, Peoples R China
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关键词: Axl Gas6 suppressor of cytokine signaling 1 suppressor of cytokine signaling 3 intracerebral hemorrhage

摘要:
Axl, a tyrosine kinase receptor, was recently identified as an essential component regulating innate immune response. Suppressor of cytokine signaling 1 and suppressor of cytokine signaling 3 are potent Axl-inducible negative inflammatory regulators. This study investigated the role of Axl signaling pathway in immune restoration in an autologous blood-injection mouse model of intracerebral hemorrhage. Recombinant growth arrest-specific 6 (Gas6) and R428 were administrated as specific agonist and antagonist. In vivo knockdown of Axl or suppressor of cytokine signaling 1 and suppressor of cytokine signaling 3 by siRNA was applied. After intracerebral hemorrhage, the expression of endogenous Axl, soluble Axl, and Gas6 was increased, whereas the expression of suppressor of cytokine signaling 1 and suppressor of cytokine signaling 3 was inhibited. Recombinant growth arrest-specific 6 administration alleviated brain edema and improved neurobehavioral performances. Moreover, enhanced Axl phosphorylation with cleavage of soluble Axl (sAxl), and an upregulation of suppressor of cytokine signaling 1 and suppressor of cytokine signaling 3 were observed. In vivo knockdown of Axl and R428 administration both abolished the effect of recombinant growth arrest-specific 6 on brain edema and also decreased the expression suppressor of cytokine signaling 1 and suppressor of cytokine signaling 3. In vivo knockdown of suppressor of cytokine signaling 1 and suppressor of cytokine signaling 3 aggravated cytokine releasing despite of recombinant growth arrest-specific 6. In conclusion, Axl plays essential role in immune restoration after intracerebral hemorrhage. And recombinant growth arrest-specific 6 attenuated brain injury after intracerebral hemorrhage, probably by enhancing Axl phosphorylation and production of suppressor of cytokine signaling 1 and suppressor of cytokine signaling 3.

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出版当年[2016]版:
大类 | 2 区 医学
小类 | 2 区 内分泌学与代谢 2 区 血液学 2 区 神经科学
最新[2025]版:
大类 | 2 区 医学
小类 | 2 区 内分泌学与代谢 2 区 血液学 2 区 神经科学
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出版当年[2015]版:
Q1 ENDOCRINOLOGY & METABOLISM Q1 HEMATOLOGY Q1 NEUROSCIENCES
最新[2023]版:
Q1 ENDOCRINOLOGY & METABOLISM Q1 HEMATOLOGY Q1 NEUROSCIENCES

影响因子: 最新[2023版] 最新五年平均 出版当年[2015版] 出版当年五年平均 出版前一年[2014版] 出版后一年[2016版]

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第一作者单位: [1]Loma Linda Univ, Sch Med, Dept Anesthesiol, Loma Linda, CA 92350 USA [2]Zhejiang Univ, Affiliated Hosp 2, Sch Med, Dept Neurol, Hangzhou 310009, Zhejiang, Peoples R China
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通讯机构: [1]Loma Linda Univ, Sch Med, Dept Anesthesiol, Loma Linda, CA 92350 USA [*1]Loma Linda Univ, Dept Anesthesiol, 11041 Campus St,Risley Hall, Loma Linda, CA 92354 USA
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