tetano
Editor, Senior Moderator
Aging (Albany NY)
. 2021 Mar 29;13.
doi: 10.18632/aging.202877. Online ahead of print.
Differentially expressed immune response genes in COVID-19 patients based on disease severity
Shasha Li[SUP] 1 2 [/SUP], Xiaoqiong Duan[SUP] 3 [/SUP], Yujia Li[SUP] 3 [/SUP], Ming Li[SUP] 1 2 [/SUP], Yong Gao[SUP] 2 4 [/SUP], Tuantuan Li[SUP] 2 4 [/SUP], Shilin Li[SUP] 3 [/SUP], Lin Tan[SUP] 1 2 [/SUP], Tuo Shao[SUP] 5 [/SUP], Andre J Jeyarajan[SUP] 5 [/SUP], Limin Chen[SUP] 3 [/SUP], Mingfeng Han[SUP] 2 6 [/SUP], Wenyu Lin[SUP] 5 [/SUP], Xiuyong Li[SUP] 2 7 [/SUP]
Affiliations
Abstract
Background: Dysregulated immune responses to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are thought to underlie the progression of coronavirus disease 2019 (COVID-19). We sought to further characterize host antiviral and cytokine gene expression in COVID-19 patients based on illness severity.
Methods: In this case-control study, we retrospectively analyzed 46 recovered COVID-19 patients and 24 healthy subjects (no history of COVID-19) recruited from the Second People's Hospital of Fuyang City. Blood samples were collected from each study participant for RNA extraction and PCR. We assessed changes in antiviral gene expression between healthy controls and patients with mild/moderate (MM) and severe/critical (SC) disease.
Results: We found that type I interferon signaling (IFNA2, TLR8, IFNA1, IFNAR1, TLR9, IRF7, ISG15, APOBEC3G, and MX1) and genes encoding proinflammatory cytokines (IL12B, IL15, IL6, IL12A and IL1B) and chemokines (CXCL9, CXCL11 and CXCL10) were upregulated in patients with MM and SC disease. Moreover, we found that IFNA1, apolipoprotein B mRNA editing enzyme, catalytic polypeptide-like 3G (APOBEC3G), and Fas-associated protein with death domain (FADD) were significantly downregulated (P < 0.05) in the SC group compared to the MM group. We also observed that microRNA (miR)-155 and miR-130a levels were markedly higher in the MM group compared to the SC group.
Conclusion: COVID-19 is associated with the activation of host antiviral genes. Induction of the IFN system appears to be particularly important in controlling SARS-CoV-2 infection, as decreased expression of IFNA1, APOBEC3G and FADD genes in SC patients, relative to MM patients, may be associated with disease progression.
Keywords: APOBEC3G; COVID-19; IL6; SARS-CoV-2; immune response genes.
. 2021 Mar 29;13.
doi: 10.18632/aging.202877. Online ahead of print.
Differentially expressed immune response genes in COVID-19 patients based on disease severity
Shasha Li[SUP] 1 2 [/SUP], Xiaoqiong Duan[SUP] 3 [/SUP], Yujia Li[SUP] 3 [/SUP], Ming Li[SUP] 1 2 [/SUP], Yong Gao[SUP] 2 4 [/SUP], Tuantuan Li[SUP] 2 4 [/SUP], Shilin Li[SUP] 3 [/SUP], Lin Tan[SUP] 1 2 [/SUP], Tuo Shao[SUP] 5 [/SUP], Andre J Jeyarajan[SUP] 5 [/SUP], Limin Chen[SUP] 3 [/SUP], Mingfeng Han[SUP] 2 6 [/SUP], Wenyu Lin[SUP] 5 [/SUP], Xiuyong Li[SUP] 2 7 [/SUP]
Affiliations
- PMID: 33780352
- DOI: 10.18632/aging.202877
Abstract
Background: Dysregulated immune responses to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are thought to underlie the progression of coronavirus disease 2019 (COVID-19). We sought to further characterize host antiviral and cytokine gene expression in COVID-19 patients based on illness severity.
Methods: In this case-control study, we retrospectively analyzed 46 recovered COVID-19 patients and 24 healthy subjects (no history of COVID-19) recruited from the Second People's Hospital of Fuyang City. Blood samples were collected from each study participant for RNA extraction and PCR. We assessed changes in antiviral gene expression between healthy controls and patients with mild/moderate (MM) and severe/critical (SC) disease.
Results: We found that type I interferon signaling (IFNA2, TLR8, IFNA1, IFNAR1, TLR9, IRF7, ISG15, APOBEC3G, and MX1) and genes encoding proinflammatory cytokines (IL12B, IL15, IL6, IL12A and IL1B) and chemokines (CXCL9, CXCL11 and CXCL10) were upregulated in patients with MM and SC disease. Moreover, we found that IFNA1, apolipoprotein B mRNA editing enzyme, catalytic polypeptide-like 3G (APOBEC3G), and Fas-associated protein with death domain (FADD) were significantly downregulated (P < 0.05) in the SC group compared to the MM group. We also observed that microRNA (miR)-155 and miR-130a levels were markedly higher in the MM group compared to the SC group.
Conclusion: COVID-19 is associated with the activation of host antiviral genes. Induction of the IFN system appears to be particularly important in controlling SARS-CoV-2 infection, as decreased expression of IFNA1, APOBEC3G and FADD genes in SC patients, relative to MM patients, may be associated with disease progression.
Keywords: APOBEC3G; COVID-19; IL6; SARS-CoV-2; immune response genes.