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논문 기본 정보

자료유형
학술저널
저자정보
Ga Hye Lee (Seoul National University College of Medicine) Won-Woo Lee (Seoul National University College of Medicine)
저널정보
대한면역학회 Immune Network Immune Network Vol.16 No.6
발행연도
2016.12
수록면
322 - 329 (8page)

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CD28 is a primary co-stimulatory receptor that is essential for successful T cell activation, proliferation, and survival. While ubiquitously expressed on naive T cells, the level of CD28 expression on memory T cells is largely dependent on the T-cell differentiation stage in humans. Expansion of circulating T cells lacking CD28 was originally considered a hallmark of age-associated immunological changes in humans, with a progressive loss of CD28 following replicative senescence with advancing age. However, an increasing body of evidence has revealed that there is a significant age-inappropriate expansion of CD4<SUP>+</SUP>CD28<SUP>–</SUP> T cells in patients with a variety of chronic inflammatory diseases, suggesting that these cells play a role in their pathogenesis. In fact, expanded CD4+CD28– T cells can produce large amounts of proinflammatory cytokines such as IFN-γ and TNF-α and also have cytotoxic potential, which may cause tissue damage and development of pathogenesis in many inflammatory disorders. Here we review the characteristics of CD4<SUP>+</SUP>CD28<SUP>–</SUP> T cells as well as the recent advances highlighting the contribution of these cells to several disease conditions.

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INTRODUCTION
CD4+CD28- T-cell biology
Clinical Relevance of CD4+CD28- T cells
Concluding remarks
REFERENCES

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UCI(KEPA) : I410-ECN-0101-2017-517-001848952