TY - JOUR AU - Liu, Xi AU - Wen, Yan-Zi AU - Huang, Zi-Liang AU - Shen, Xia AU - Wang, Jun-Hao AU - Luo, Yi-Hai AU - Chen, Wen-Xin AU - Lun, Zhao-Rong AU - Li, Hui-Bin AU - Qu, Liang-Hu AU - Shan, Hong AU - Zheng, Ling-Ling PY - 2021 DA - December TI - SARS-CoV-2 Causes a Significant Stress Response Mediated by Small RNAs in the Blood of COVID-19 Patients JO - Molecular Therapy - Nucleic Acids EP - 762 VL - 27 DO - https://doi.org/10.1016/j.omtn.2021.12.034 AB - SARS-CoV-2 has had a serious impact on the world. In this study, small RNAs from the blood of COVID-19 patients with moderate or severe symptoms were extracted for high-throughput sequencing and analysis. Interestingly, the levels of a special group of tRNA-derived small RNAs (tsRNAs) were found to be dramatically upregulated after SARS-CoV-2 infection, particularly in COVID-19 patients with severe symptoms. In particular, the 3'CCA tsRNAs from Gly-tRNA were highly consistent with the inflammation indicator C-reactive protein (CRP). In addition, we found that the majority of significantly changed microRNAs (miRNAs) were associated with endoplasmic reticulum (ER)/unfolded protein response (UPR) sensors, which may lead to the induction of proinflammatory cytokine and immune responses. This study found that SARS-CoV-2 infection caused significant changes in the levels of stress-associated small RNAs in patient blood and their potential functions. Our research revealed that the cells of COVID-19 patients undergo tremendous stress and respond, which can be reflected or regulated by sncRNAs, thus providing potential thought for therapeutic intervention in COVID-19 by modulating small RNA levels or activities. PB - Elsevier UR - https://www.research.ed.ac.uk/en/publications/91e9c6c3-9620-492a-b612-f927c376ffda KW - Coronavirus (COVID-19) ER