期刊
JOURNAL OF NEUROINFLAMMATION
卷 18, 期 1, 页码 -出版社
BMC
DOI: 10.1186/s12974-020-02057-z
关键词
T cell subsets; Immune responses; Ischaemic stroke
资金
- National Natural Science Foundation of China [81870939, 81571147, 82070526]
- Natural Science Foundation of Guangdong Province, Guangdong [2019A1515010654]
Recent research has highlighted the significant role of T cells in both the acute and chronic phases of ischaemic stroke, with potential therapeutic approaches focusing on modulating the balance between proinflammatory and anti-inflammatory functions of T cells. Understanding the immune responses, especially T cell responses, in the post-stroke recovery period may provide new directions for treatments beyond tissue plasminogen activator therapy.
Through considerable effort in research and clinical studies, the immune system has been identified as a participant in the onset and progression of brain injury after ischaemic stroke. Due to the involvement of all types of immune cells, the roles of the immune system in stroke pathology and associated effects are complicated. Past research concentrated on the functions of monocytes and neutrophils in the pathogenesis of ischaemic stroke and tried to demonstrate the mechanisms of tissue injury and protection involving these immune cells. Within the past several years, an increasing number of studies have elucidated the vital functions of T cells in the innate and adaptive immune responses in both the acute and chronic phases of ischaemic stroke. Recently, the phenotypes of T cells with proinflammatory or anti-inflammatory function have been demonstrated in detail. T cells with distinctive phenotypes can also influence cerebral inflammation through various pathways, such as regulating the immune response, interacting with brain-resident immune cells and modulating neurogenesis and angiogenesis during different phases following stroke. In view of the limited treatment options available following stroke other than tissue plasminogen activator therapy, understanding the function of immune responses, especially T cell responses, in the post-stroke recovery period can provide a new therapeutic direction. Here, we discuss the different functions and temporal evolution of T cells with different phenotypes during the acute and chronic phases of ischaemic stroke. We suggest that modulating the balance between the proinflammatory and anti-inflammatory functions of T cells with distinct phenotypes may become a potential therapeutic approach that reduces the mortality and improves the functional outcomes and prognosis of patients suffering from ischaemic stroke.
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