SARS-CoV-2 sensitive to type I interferon pretreatment.
Summary (1 min read)
Summary
- SARS-CoV-2, a novel coronavirus (CoV) that causes COVID-19, has recently emerged causing 2 an ongoing outbreak of viral pneumonia around the world.
- 64 In this study, the authors further characterize SARS-CoV-2 and compare it to the original SARS-65 CoV.
- In contrast, the authors find that SARS-CoV-2 is 67 significantly more sensitive to IFN-I pretreatment as compared to SARS-CoV.
- These results suggest distinct changes between SARS-74 CoV and SARS-CoV-2 in terms of IFN-I antagonism and the authors subsequently examined sequence 75 homology between the SARS-CoV and SARS-CoV-2 viral proteins that may be responsible for 76 these differences.
- In contrast, SARS-CoV-2 shows a 98 significant reduction in viral replication following IFN-I treatment.
- The authors still found a reduction in STAT1 156 phosphorylation and ISG induction in IFN-I pretreated SARS-CoV versus SARS-CoV-2 157 infection.
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Citations
3,286 citations
Cites result from "SARS-CoV-2 sensitive to type I inte..."
...These data demonstrate that addition of IFN-I resulted in a dramatic reduction in virus replication, in agreement with the findings of others (Lokugamage et al., 2020)....
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1,350 citations
Cites background or methods from "SARS-CoV-2 sensitive to type I inte..."
...In support of this notion, SARS-CoV-2 infection fails to limit STAT1 phosphorylation, unlike in SARS-CoV-1 infection (Lokugamage et al., 2020)....
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...Early evidence demonstrated that SARS-CoV-2 is sensitive to IFN-I/III pretreatment in vitro, perhaps to a greater degree than SARS-CoV-1 (Blanco-Melo et al., 2020; Lokugamage et al., 2020; Mantlo et al., 2020; Stanifer et al., 2020)....
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720 citations
662 citations
Cites background or result from "SARS-CoV-2 sensitive to type I inte..."
...Two in vitro studies have already demonstrated that SARS-CoV-2 has greater sensitivity to IFN-I compared with SARS-CoV (Lokugamage et al., 2020; Mantlo et al., 2020)....
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...Nsp16 of SARS-CoV-2 and of SARS-CoV share 92% amino acid sequence homology, suggesting this evasion strategy is likely retained in the novel virus (Lokugamage et al., 2020)....
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645 citations
References
36,578 citations
"SARS-CoV-2 sensitive to type I inte..." refers background or methods in this paper
...Treatments with both protease inhibitors and type I interferon (IFN-I) have been employed (4); 48 similarly, remdesivir, a drug targeting viral polymerases, has been reported to have efficacy 49...
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...corresponding CoV disease, COVID-19, has many of the hallmarks of SARS-CoV disease 34 including fever, breathing difficulty, bilateral lung infiltration, and death in the most extreme 35 cases (3, 4)....
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21,455 citations
16,857 citations
"SARS-CoV-2 sensitive to type I inte..." refers background in this paper
...Coupled with 197 a novel furin cleavage site (33), robust upper airway infection (8), and potential transmission 198...
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...Initial modeling studies predicted (6) and 41 subsequent cell culture studies confirmed that spike protein of SARS-CoV-2 utilizes human 42 angiotensin converting enzyme 2 (ACE2) for entry, the same receptor as SARS-CoV (7, 8)....
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...While initial work has suggested incompatibility to SARS-CoV-2 infection in 259 mice based on receptor usage (8), the type I IFN response may be a second major barrier that 260 needs to be overcome....
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14,343 citations
"SARS-CoV-2 sensitive to type I inte..." refers result in this paper
...Prophylactic and therapeutic remdesivir (GS-5734) treatment in the 355 rhesus macaque model of MERS-CoV infection....
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...Importantly, screening and treatment 46 guidance has relied on previous CoV data generated with SARS-CoV and MERS-CoV....
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...However, each of these 256 MERS-CoV mouse models still retained full immune capacity....
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...In addition, the most severe SARS-CoV-2 disease corresponded to old age (>50 36 years old), health status, and health care workers, similar to both SARS and MERS-CoV (5)....
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...This level of 206 sensitivity is similar to MERS-CoV and suggests that the novel CoV lacks the same capacity to 207 escape a primed IFN-I response as SARS-CoV (39, 40)....
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5,660 citations