PZR suppresses innate immune response to RNA viral infection by inhibiting MAVS activation in interferon signaling mediated by RIG-I and MDA5
Copyright © 2024 Elsevier B.V. All rights reserved..
RNA viral infections seriously endanger human health. Src homology 2 (SH2) domain-containing protein tyrosine phosphatase 2 (SHP2) suppresses innate immunity against influenza A virus, and pharmacological inhibition of SHP2 provokes hepatic innate immunity. SHP2 binds and catalyzes tyrosyl dephosphorylation of protein zero-related (PZR), but the regulatory effect of PZR on innate immune response to viral infection is unclear. In this study, the transcription and protein level of PZR in host cells were found to be decreased with RNA viral infection, and high level of PZR was uncovered to inhibit interferon (IFN) signaling mediated by RIG-I and MDA5. Through localizing in mitochondria, PZR targeted and interacted with MAVS (also known as IPS-1/VISA/Cardif), suppressing the aggregation and activation of MAVS. Specifically, Y263 residue in ITIM is critical for PZR to exert immunosuppression under RNA viral infection. Moreover, the recruited SHP2 by PZR that modified with tyrosine phosphorylation under RNA viral infection might inhibit phosphorylation activation of MAVS. In conclusion, PZR and SHP2 suppress innate immune response to RNA viral infection through inhibiting MAVS activation. This study reveals the regulatory mechanism of PZR-SHP2-MAVS signal axis on IFN signaling mediated by RIG-I and MDA5, which may provide new sight for developing antiviral drugs.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:222 |
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| Enthalten in: |
Antiviral research - 222(2024) vom: 01. Feb., Seite 105797 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Deng, Rilin [VerfasserIn] |
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| Links: |
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| Themen: |
63231-63-0 |
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| Anmerkungen: |
Date Completed 14.02.2024 Date Revised 22.02.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.antiviral.2024.105797 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM366758357 |
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| 520 | |a Copyright © 2024 Elsevier B.V. All rights reserved. | ||
| 520 | |a RNA viral infections seriously endanger human health. Src homology 2 (SH2) domain-containing protein tyrosine phosphatase 2 (SHP2) suppresses innate immunity against influenza A virus, and pharmacological inhibition of SHP2 provokes hepatic innate immunity. SHP2 binds and catalyzes tyrosyl dephosphorylation of protein zero-related (PZR), but the regulatory effect of PZR on innate immune response to viral infection is unclear. In this study, the transcription and protein level of PZR in host cells were found to be decreased with RNA viral infection, and high level of PZR was uncovered to inhibit interferon (IFN) signaling mediated by RIG-I and MDA5. Through localizing in mitochondria, PZR targeted and interacted with MAVS (also known as IPS-1/VISA/Cardif), suppressing the aggregation and activation of MAVS. Specifically, Y263 residue in ITIM is critical for PZR to exert immunosuppression under RNA viral infection. Moreover, the recruited SHP2 by PZR that modified with tyrosine phosphorylation under RNA viral infection might inhibit phosphorylation activation of MAVS. In conclusion, PZR and SHP2 suppress innate immune response to RNA viral infection through inhibiting MAVS activation. This study reveals the regulatory mechanism of PZR-SHP2-MAVS signal axis on IFN signaling mediated by RIG-I and MDA5, which may provide new sight for developing antiviral drugs | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Innate immune response | |
| 650 | 4 | |a MAVS | |
| 650 | 4 | |a PZR | |
| 650 | 4 | |a RNA viral infection | |
| 650 | 4 | |a SHP2 | |
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| 700 | 1 | |a Zhang, Lini |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Shengwen |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Xinran |e verfasserin |4 aut | |
| 700 | 1 | |a Xue, Binbin |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Huiyi |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Yan |e verfasserin |4 aut | |
| 700 | 1 | |a Tian, Renyun |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Qian |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Luoling |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Shun |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Di |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Penghui |e verfasserin |4 aut | |
| 700 | 1 | |a Tang, Songqing |e verfasserin |4 aut | |
| 700 | 1 | |a Zhu, Haizhen |e verfasserin |4 aut | |
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