tetano
Editor, Senior Moderator
Virol J
. 2022 Nov 28;19(1):198.
doi: 10.1186/s12985-022-01930-y.
Transcriptional differences between coronavirus disease 2019 and bacterial sepsis
Hiroshi Ito[SUP] #[/SUP][SUP] 1 [/SUP], Masakazu Ishikawa[SUP] #[/SUP][SUP] 2 3 [/SUP], Hisatake Matsumoto[SUP] 4 5 [/SUP], Fuminori Sugihara[SUP] 6 [/SUP], Daisuke Okuzaki[SUP] 7 8 9 10 [/SUP], Haruhiko Hirata[SUP] 11 [/SUP], Hiroshi Ogura[SUP] 1 3 [/SUP]
Affiliations
Abstract
Background: Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2, has led to major public health crises worldwide. Several studies have reported the comprehensive mRNA expression analysis of immune-related genes in patients with COVID-19, using blood samples, to understand its pathogenesis; however, the characteristics of RNA expression in COVID-19 and bacterial sepsis have not been compared. The current study aimed to address this gap.
Methods: RNA-sequencing and bioinformatics analyses were used to compare the transcriptome expression of whole blood samples from patients with COVID-19 and patients with sepsis who were admitted to the intensive care unit of Osaka University Graduate School of Medicine.
Results: The COVID-19 and sepsis cohorts showed upregulation of mitochondrial- and neutrophil-related transcripts, respectively. Compared with that in the control cohort, neutrophil-related transcripts were upregulated in both the COVID-19 and sepsis cohorts. In contrast, mitochondrial-related transcripts were upregulated in the COVID-19 cohort and downregulated in the sepsis cohort, compared to those in the control cohort. Moreover, transcript levels of the pro-apoptotic genes BAK1, CYCS, BBC3, CASP7, and CASP8 were upregulated in the COVID-19 cohort, whereas those of anti-apoptotic genes, such as BCL2L11 and BCL2L1, were upregulated in the sepsis cohort.
Conclusions: This study clarified the differential expression of transcripts related to neutrophils and mitochondria in sepsis and COVID-19 conditions. Mitochondrial-related transcripts were downregulated in sepsis than in COVID-19 conditions, and our results indicated suboptimal intrinsic apoptotic features in sepsis samples compared with that in COVID-19 samples. This study is expected to contribute to the development of specific treatments for COVID-19.
Keywords: Coronavirus disease 2019; Mitochondria; Neutrophil; Severe acute respiratory syndrome coronavirus 2.
. 2022 Nov 28;19(1):198.
doi: 10.1186/s12985-022-01930-y.
Transcriptional differences between coronavirus disease 2019 and bacterial sepsis
Hiroshi Ito[SUP] #[/SUP][SUP] 1 [/SUP], Masakazu Ishikawa[SUP] #[/SUP][SUP] 2 3 [/SUP], Hisatake Matsumoto[SUP] 4 5 [/SUP], Fuminori Sugihara[SUP] 6 [/SUP], Daisuke Okuzaki[SUP] 7 8 9 10 [/SUP], Haruhiko Hirata[SUP] 11 [/SUP], Hiroshi Ogura[SUP] 1 3 [/SUP]
Affiliations
- PMID: 36443881
- DOI: 10.1186/s12985-022-01930-y
Abstract
Background: Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2, has led to major public health crises worldwide. Several studies have reported the comprehensive mRNA expression analysis of immune-related genes in patients with COVID-19, using blood samples, to understand its pathogenesis; however, the characteristics of RNA expression in COVID-19 and bacterial sepsis have not been compared. The current study aimed to address this gap.
Methods: RNA-sequencing and bioinformatics analyses were used to compare the transcriptome expression of whole blood samples from patients with COVID-19 and patients with sepsis who were admitted to the intensive care unit of Osaka University Graduate School of Medicine.
Results: The COVID-19 and sepsis cohorts showed upregulation of mitochondrial- and neutrophil-related transcripts, respectively. Compared with that in the control cohort, neutrophil-related transcripts were upregulated in both the COVID-19 and sepsis cohorts. In contrast, mitochondrial-related transcripts were upregulated in the COVID-19 cohort and downregulated in the sepsis cohort, compared to those in the control cohort. Moreover, transcript levels of the pro-apoptotic genes BAK1, CYCS, BBC3, CASP7, and CASP8 were upregulated in the COVID-19 cohort, whereas those of anti-apoptotic genes, such as BCL2L11 and BCL2L1, were upregulated in the sepsis cohort.
Conclusions: This study clarified the differential expression of transcripts related to neutrophils and mitochondria in sepsis and COVID-19 conditions. Mitochondrial-related transcripts were downregulated in sepsis than in COVID-19 conditions, and our results indicated suboptimal intrinsic apoptotic features in sepsis samples compared with that in COVID-19 samples. This study is expected to contribute to the development of specific treatments for COVID-19.
Keywords: Coronavirus disease 2019; Mitochondria; Neutrophil; Severe acute respiratory syndrome coronavirus 2.