Project description:The ongoing pandemic caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is currently affecting millions of lives worldwide. Large retrospective studies indicate that an elevated level of inflammatory cytokines and pro-inflammatory factors are associated with both increased disease severity and mortality. Targeting these pathways might therefore be a viable therapeutic strategy. Previously, we have reported that chromatin factors such as Topoisomerase I (Top1) play key roles in controlling the induction of inflammatory gene expression programs. Here, by using multidimensional epigenetic, transcriptional, in vitro and in vivo analyses, we show that Topoisomerase 1 (Top1) inhibition in infected cells and animals suppresses lethal inflammation induced by SARS-CoV-2.
Project description:The ongoing pandemic caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is currently affecting millions of lives worldwide. Large retrospective studies indicate that an elevated level of inflammatory cytokines and pro-inflammatory factors are associated with both increased disease severity and mortality. Targeting these pathways might therefore be a viable therapeutic strategy. Previously, we have reported that chromatin factors such as Topoisomerase I (Top1) play key roles in controlling the induction of inflammatory gene expression programs. Here, by using multidimensional epigenetic, transcriptional, in vitro and in vivo analyses, we show that Topoisomerase 1 (Top1) inhibition in infected cells and animals suppresses lethal inflammation induced by SARS-CoV-2.
Project description:The ongoing pandemic caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is currently affecting millions of lives worldwide. Large retrospective studies indicate that an elevated level of inflammatory cytokines and pro-inflammatory factors are associated with both increased disease severity and mortality. Targeting these pathways might therefore be a viable therapeutic strategy. Previously, we have reported that chromatin factors such as Topoisomerase I (Top1) play key roles in controlling the induction of inflammatory gene expression programs. Here, by using multidimensional epigenetic, transcriptional, in vitro and in vivo analyses, we show that Topoisomerase 1 (Top1) inhibition in infected cells and animals suppresses lethal inflammation induced by SARS-CoV-2.
Project description:To explore the relationship between SARS-CoV-2 infection in different time before operation and postoperative main complications (mortality, main pulmonary and cardiovascular complications) 30 days after operation; To determine the best timing of surgery after SARS-CoV-2 infection.
Project description:The ongoing pandemic caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is currently affecting millions of lives worldwide. Large retrospective studies indicate that an elevated level of inflammatory cytokines and pro-inflammatory factors are associated with both increased disease severity and mortality. Targeting these pathways might therefore be a viable therapeutic strategy. Previously, we have reported that chromatin factors such as Topoisomerase I (Top1) play key roles in controlling the induction of inflammatory gene expression programs. Here, by using multidimensional epigenetic, transcriptional, in vitro and in vivo analyses, we show that Topoisomerase 1 (Top1) inhibition in infected cells and animals suppresses lethal inflammation induced by SARS-CoV-2.
Project description:HAE cultures were infected with SARS-CoV, SARS-dORF6 or SARS-BatSRBD and were directly compared to A/CA/04/2009 H1N1 influenza-infected cultures. Cell samples were collected at various hours post-infection for analysis. Time Points = 0, 12, 24, 36, 48, 60, 72, 84 and 96 hrs post-infection for SARS-CoV, SARS-dORF6 and SARS-BatSRBD. Time Points = 0, 6, 12, 18, 24, 36 and 48 hrs post-infection for H1N1. Done in triplicate for RNA Triplicates are defined as 3 different wells, plated at the same time and using the same cell stock for all replicates. Time matched mocks done in triplicate from same cell stock as rest of samples. Culture medium (the same as what the virus stock is in) will be used for the mock infections. Infection was done at an MOI of 2 for SARS viruses and an MOI of 1 for H1N1.
Project description:HAE cultures were infected with SARS-CoV, SARS-dORF6 or SARS-BatSRBD and were directly compared to A/CA/04/2009 H1N1 influenza-infected cultures. Cell samples were collected at various hours post-infection for analysis. Time Points = 0, 12, 24, 36, 48, 60, 72, 84 and 96 hrs post-infection for SARS-CoV, SARS-dORF6 and SARS-BatSRBD. Time Points = 0, 6, 12, 18, 24, 36 and 48 hrs post-infection for H1N1. Done in triplicate or quadruplicate for RNA Triplicates/quadruplicates are defined as 3/4 different wells, plated at the same time and using the same cell stock for all replicates. Time matched mocks done in triplicate from same cell stock as rest of samples. Culture medium (the same as what the virus stock is in) will be used for the mock infections. Infection was done at an MOI of 2.