Type I gamma phosphatidylinositol phosphate 5-kinase i5 controls cell sensitivity to interferon
Copyright © 2024 Elsevier Inc. All rights reserved..
The interferon signaling pathway is critical for host defense by serving diverse functions in both innate and adaptive immune responses. Here, we show that type I gamma phosphatidylinositol phosphate 5-kinase i5 (PIPKIγi5), an enzyme that synthesizes phosphatidylinositol-4,5-bisphosphate (PI4,5P2), controls the sensitivity to interferon in both human and mouse cells. PIPKIγi5 directly binds to the interferon-gamma (IFN-γ) downstream effector signal transducer and activator of transcription 1 (STAT1), which suppresses the STAT1 dimerization, IFN-γ-induced STAT1 nuclear translocation, and transcription of IFN-γ-responsive genes. Depletion of PIPKIγi5 significantly enhances IFN-γ signaling and strengthens an antiviral response. In addition, PIPKIγi5-synthesized PI4,5P2 can bind to STAT1 and promote the PIPKIγi5-STAT1 interaction. Similar to its interaction with STAT1, PIPKIγi5 is capable of interacting with other members of the STAT family, including STAT2 and STAT3, thereby suppressing the expression of genes mediated by these transcription factors. These findings identify the function of PIPKIγi5 in immune regulation.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:59 |
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| Enthalten in: |
Developmental cell - 59(2024), 8 vom: 22. Apr., Seite 1028-1042.e5 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Ghosh, Chinmoy [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 24.04.2024 Date Revised 26.04.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.devcel.2024.02.005 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a The interferon signaling pathway is critical for host defense by serving diverse functions in both innate and adaptive immune responses. Here, we show that type I gamma phosphatidylinositol phosphate 5-kinase i5 (PIPKIγi5), an enzyme that synthesizes phosphatidylinositol-4,5-bisphosphate (PI4,5P2), controls the sensitivity to interferon in both human and mouse cells. PIPKIγi5 directly binds to the interferon-gamma (IFN-γ) downstream effector signal transducer and activator of transcription 1 (STAT1), which suppresses the STAT1 dimerization, IFN-γ-induced STAT1 nuclear translocation, and transcription of IFN-γ-responsive genes. Depletion of PIPKIγi5 significantly enhances IFN-γ signaling and strengthens an antiviral response. In addition, PIPKIγi5-synthesized PI4,5P2 can bind to STAT1 and promote the PIPKIγi5-STAT1 interaction. Similar to its interaction with STAT1, PIPKIγi5 is capable of interacting with other members of the STAT family, including STAT2 and STAT3, thereby suppressing the expression of genes mediated by these transcription factors. These findings identify the function of PIPKIγi5 in immune regulation | ||
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| 700 | 1 | |a Kakar, Ruchi |e verfasserin |4 aut | |
| 700 | 1 | |a Hoyle, Rosalie G |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Zheng |e verfasserin |4 aut | |
| 700 | 1 | |a Guo, Chunqing |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Jiong |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Xiang-Yang |e verfasserin |4 aut | |
| 700 | 1 | |a Sun, Yue |e verfasserin |4 aut | |
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