Aberrant hyperactivation of cytotoxic T-cell as a potential determinant of COVID-19 severity
Author links open overlay panelChang KyungKanga1Gi-ChanHanbcd1MinjiKimbcd1GwanghunKimbcdHyun MuShinfKyoung-HoSongagPyoeng GyunChoeaWan BeomParkaEu SukKimafHong BinKimafNam-JoongKimaHang-RaeKimbcdefMyoung-donOha
Show more
https://doi.org/10.1016/j.ijid.2020.05.106
Abstract
Objectives
We hypothesized that immune response may contribute to progression of coronavirus disease-19 (COVID-19) at the second week of illness. Therefore, we compared cell-mediated immune (CMI) responses between severe and mild COVID-19 cases.
Methods
We examined peripheral blood mononuclear cells of laboratory-confirmed COVID-19 patients from their first and third weeks of illness. Severe pneumonia was defined as an oxygen saturation ≤ 93% at room air. Expressions of molecules related to T-cell activation and functions were analyzed by flow cytometry.