Interferon response and profiling of interferon response genes in peripheral blood of vaccine-naive COVID-19 patients
Copyright © 2024 Huang, Huang, Chiang, Chen, Lui, Ling, Kwan, Wong, Mak, Ling, Lam, Ng, Wang, Gao, Hui, Ma, Chan and Tang..
Introduction: There is insufficient understanding on systemic interferon (IFN) responses during COVID-19 infection. Early reports indicated that interferon responses were suppressed by the coronavirus (SARS-CoV-2) and clinical trials of administration of various kinds of interferons had been disappointing. Expression of interferon-stimulated genes (ISGs) in peripheral blood (better known as interferon score) has been a well-established bioassay marker of systemic IFN responses in autoimmune diseases. Therefore, with archival samples of a cohort of COVID-19 patients collected before the availability of vaccination, we aimed to better understand this innate immune response by studying the IFN score and related ISGs expression in bulk and single cell RNAs sequencing expression datasets.
Methods: In this study, we recruited 105 patients with COVID-19 and 30 healthy controls in Hong Kong. Clinical risk factors, disease course, and blood sampling times were recovered. Based on a set of five commonly used ISGs (IFIT1, IFIT2, IFI27, SIGLEC1, IFI44L), the IFN score was determined in blood leukocytes collected within 10 days after onset. The analysis was confined to those blood samples collected within 10 days after disease onset. Additional public datasets of bulk gene and single cell RNA sequencing of blood samples were used for the validation of IFN score results.
Results: Compared to the healthy controls, we showed that ISGs expression and IFN score were significantly increased during the first 10 days after COVID infection in majority of patients (71%). Among those low IFN responders, they were more commonly asymptomatic patients (71% vs 25%). 22 patients did not mount an overall significant IFN response and were classified as low IFN responders (IFN score < 1). However, early IFN score or ISGs level was not a prognostic biomarker and could not predict subsequent disease severity. Both IFI27 and SIGLEC1 were monocyte-predominant expressing ISGs and IFI27 were activated even among those low IFN responders as defined by IFN score. In conclusion, a substantial IFN response was documented in this cohort of COVID-19 patients who experience a natural infection before the vaccination era. Like innate immunity towards other virus, the ISGs activation was observed largely during the early course of infection (before day 10). Single-cell RNA sequencing data suggested monocytes were the cell-type that primarily accounted for the activation of two highly responsive ISGs (IFI44L and IFI27).
Discussion: As sampling time and age were two major confounders of ISG expression, they may account for contradicting observations among previous studies. On the other hand, the IFN score was not associated with the severity of the disease.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:14 |
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| Enthalten in: |
Frontiers in immunology - 14(2023) vom: 03., Seite 1315602 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Huang, Baozhen [VerfasserIn] |
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| Links: |
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| Themen: |
9008-11-1 |
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| Anmerkungen: |
Date Completed 26.01.2024 Date Revised 03.04.2024 published: Electronic-eCollection Citation Status MEDLINE |
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| doi: |
10.3389/fimmu.2023.1315602 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM367593599 |
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| 100 | 1 | |a Huang, Baozhen |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Interferon response and profiling of interferon response genes in peripheral blood of vaccine-naive COVID-19 patients |
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| 500 | |a Date Revised 03.04.2024 | ||
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| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2024 Huang, Huang, Chiang, Chen, Lui, Ling, Kwan, Wong, Mak, Ling, Lam, Ng, Wang, Gao, Hui, Ma, Chan and Tang. | ||
| 520 | |a Introduction: There is insufficient understanding on systemic interferon (IFN) responses during COVID-19 infection. Early reports indicated that interferon responses were suppressed by the coronavirus (SARS-CoV-2) and clinical trials of administration of various kinds of interferons had been disappointing. Expression of interferon-stimulated genes (ISGs) in peripheral blood (better known as interferon score) has been a well-established bioassay marker of systemic IFN responses in autoimmune diseases. Therefore, with archival samples of a cohort of COVID-19 patients collected before the availability of vaccination, we aimed to better understand this innate immune response by studying the IFN score and related ISGs expression in bulk and single cell RNAs sequencing expression datasets | ||
| 520 | |a Methods: In this study, we recruited 105 patients with COVID-19 and 30 healthy controls in Hong Kong. Clinical risk factors, disease course, and blood sampling times were recovered. Based on a set of five commonly used ISGs (IFIT1, IFIT2, IFI27, SIGLEC1, IFI44L), the IFN score was determined in blood leukocytes collected within 10 days after onset. The analysis was confined to those blood samples collected within 10 days after disease onset. Additional public datasets of bulk gene and single cell RNA sequencing of blood samples were used for the validation of IFN score results | ||
| 520 | |a Results: Compared to the healthy controls, we showed that ISGs expression and IFN score were significantly increased during the first 10 days after COVID infection in majority of patients (71%). Among those low IFN responders, they were more commonly asymptomatic patients (71% vs 25%). 22 patients did not mount an overall significant IFN response and were classified as low IFN responders (IFN score < 1). However, early IFN score or ISGs level was not a prognostic biomarker and could not predict subsequent disease severity. Both IFI27 and SIGLEC1 were monocyte-predominant expressing ISGs and IFI27 were activated even among those low IFN responders as defined by IFN score. In conclusion, a substantial IFN response was documented in this cohort of COVID-19 patients who experience a natural infection before the vaccination era. Like innate immunity towards other virus, the ISGs activation was observed largely during the early course of infection (before day 10). Single-cell RNA sequencing data suggested monocytes were the cell-type that primarily accounted for the activation of two highly responsive ISGs (IFI44L and IFI27) | ||
| 520 | |a Discussion: As sampling time and age were two major confounders of ISG expression, they may account for contradicting observations among previous studies. On the other hand, the IFN score was not associated with the severity of the disease | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
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| 700 | 1 | |a Chiang, Nim Hang |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Zigui |e verfasserin |4 aut | |
| 700 | 1 | |a Lui, Grace |e verfasserin |4 aut | |
| 700 | 1 | |a Ling, Lowell |e verfasserin |4 aut | |
| 700 | 1 | |a Kwan, Mike Yat Wah |e verfasserin |4 aut | |
| 700 | 1 | |a Wong, Joshua Sung Chih |e verfasserin |4 aut | |
| 700 | 1 | |a Mak, Phoebe Qiaozhen |e verfasserin |4 aut | |
| 700 | 1 | |a Ling, Janet Wan Hei |e verfasserin |4 aut | |
| 700 | 1 | |a Lam, Ivan Cheuk San |e verfasserin |4 aut | |
| 700 | 1 | |a Ng, Rita Wai Yin |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Xingyan |e verfasserin |4 aut | |
| 700 | 1 | |a Gao, Ruonan |e verfasserin |4 aut | |
| 700 | 1 | |a Hui, David Shu-Cheong |e verfasserin |4 aut | |
| 700 | 1 | |a Ma, Suk Ling |e verfasserin |4 aut | |
| 700 | 1 | |a Chan, Paul K S |e verfasserin |4 aut | |
| 700 | 1 | |a Tang, Nelson Leung Sang |e verfasserin |4 aut | |
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