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Increased Soluble CD137 Levels and CD4+ T-Cell-Associated Expression of CD137 in Acute Atherothrombotic Stroke.


ABSTRACT: As a proinflammatory cytokine, CD137 (4-1BB, TNFRSF9) is present in membrane-bound and soluble forms. Increased expression of CD137 was recently found in T cells in human atherosclerotic plaques. However, the exact role of CD137 in ischemic stroke is not clear. In this study we analyzed the protein levels of soluble CD137 (sCD137) and the expression of CD137 on CD4+ T cells in the peripheral blood of patients with acute atherothrombotic stroke by using the cytometry beads array (CBA) and flow cytometry. Within 24 hours of onset, the stroke patients showed elevated levels of sCD137 (2.7 pg/ml) and CD137 expression on CD4+ T cells (4.9 ± 3.2%) compared with normal controls (1.1 pg/ml, P < 0.01; 1.3 ± 1.0%, P < 0.01). Alterations in CD137 expression may enhance ischemia-induced inflammatory responses via bidirectional signaling and, consequently, aggravate brain injury in early stages of this disorder.

SUBMITTER: He Y 

PROVIDER: S-EPMC6039206 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature

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Increased Soluble CD137 Levels and CD4+ T-Cell-Associated Expression of CD137 in Acute Atherothrombotic Stroke.

He Yang Y   Ao Dong-Hui DH   Li Xiao-Qing XQ   Zhong Shan-Shan SS   A Rong R   Wang Yang-Yang YY   Xiang Ya-Juan YJ   Xu Bao-Lei BL   Yang Ting-Ting TT   Gao Xu-Guang XG   Liu Guang-Zhi GZ  

Clinical and translational science 20180426 4


As a proinflammatory cytokine, CD137 (4-1BB, TNFRSF9) is present in membrane-bound and soluble forms. Increased expression of CD137 was recently found in T cells in human atherosclerotic plaques. However, the exact role of CD137 in ischemic stroke is not clear. In this study we analyzed the protein levels of soluble CD137 (sCD137) and the expression of CD137 on CD4+ T cells in the peripheral blood of patients with acute atherothrombotic stroke by using the cytometry beads array (CBA) and flow cy  ...[more]

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