초록 |
The outbreak of highly contagious and deadly SARS-CoV-2, also known as Coronavirus Disease 2019 (COVID-19) has posed a serious threat to public health across the globe, calling for the development of effective diagnostic markers and therapeutics. Here, we report a highly reliable severity diagnostic biomarker, acetylated 676th lysine transforming growth factor beta-induced protein (TGFBIp K676Ac). The TGFBIp K676Ac was consistently elevated in the blood of SARS-CoV-2 pneumonia patients (n=113); especially in patients of intensive care unit (ICU) than non-ICU. Patients’ blood samples showed increased cytokines and lymphopenia, which are exemplary evidences of SARS-CoV-2 pneumonia. Treatment of TGFBIp neutralizing antibodies suppressed the cytokine storm. The increased level of TGFBIp K676 Ac in ICU patients implies that it can be used as a reliable severity diagnostic biomarker for SARS-CoV-2. |