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Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Nat+Commun 2020 ; 11 (1): 3410 Nephropedia Template TP
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Immunological and inflammatory profiles in mild and severe cases of COVID-19 #MMPMID32641700
Song JW; Zhang C; Fan X; Meng FP; Xu Z; Xia P; Cao WJ; Yang T; Dai XP; Wang SY; Xu RN; Jiang TJ; Li WG; Zhang DW; Zhao P; Shi M; Agrati C; Ippolito G; Maeurer M; Zumla A; Wang FS; Zhang JY
Nat Commun 2020[Jul]; 11 (1): 3410 PMID32641700show ga
COVID-19 is associated with 5.1% mortality. Although the virological, epidemiological, clinical, and management outcome features of COVID-19 patients have been defined rapidly, the inflammatory and immune profiles require definition as they influence pathogenesis and clinical expression of COVID-19. Here we show lymphopenia, selective loss of CD4+ T cells, CD8+ T cells and NK cells, excessive T-cell activation and high expression of T-cell inhibitory molecules are more prominent in severe cases than in those with mild disease. CD8+ T cells in patients with severe disease express high levels of cytotoxic molecules. Histochemical studies of lung tissue from one fatality show sub-anatomical distributions of SARS-CoV-2 RNA and massive infiltration of T cells and macrophages. Thus, aberrant activation and dysregulation of CD8+ T cells occur in patients with severe COVID-19 disease, an effect that might be for pathogenesis of SARS-CoV-2 infection and indicate that immune-based targets for therapeutic interventions constitute a promising treatment for severe COVID-19 patients.