SARS‐CoV ‐2 spike protein enhances MAP4K3/GLK ‐induced ACE2 stability in COVID ‐19
Abstract: ACE2 on epithelial cells is the SARS‐CoV‐2 entry receptor. Single‐cell RNA‐sequencing data derived from two COVID‐19 cohorts revealed that MAP4K3/GLK‐positive epithelial cells were increased in patients. SARS‐CoV‐2‐induced GLK overexpression in epithelial cells was correlated with COVID‐19 severity and vesicle secretion. GLK overexpression induced the epithelial cell‐derived exosomes containing ACE2; the GLK‐induced exosomes transported ACE2 proteins to recipient cells, facilitating pseudovirus infection. Consistently, ACE2 proteins were increased in the serum exosomes from another COVID‐19 cohort. Remarkably, SARS‐CoV‐2 spike protein‐stimulated GLK, and GLK stabilized ACE2 in epithelial cells. Mechanistically, GLK phosphorylated ACE2 at two serine residues (Ser776, Ser783), leading to the dissociation of ACE2 from its E3 ligase UBR4. Reduction in UBR4‐induced Lys48‐linked ubiquitination at three lysine residues (Lys26, Lys112, Lys114) of ACE2 prevented its degradation. Furthermore, SARS‐CoV‐2 pseudovirus or live virus infection in humanized ACE2 mice induced GLK and ACE2 protein levels, and ACE2‐containing exosomes. Collectively, ACE2 stabilization by SARS‐CoV‐2‐induced MAP4K3/GLK may contribute to the pathogenesis of COVID‐19.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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SARS‐CoV ‐2 spike protein enhances MAP4K3/GLK ‐induced ACE2 stability in COVID ‐19 ; day:27 ; month:07 ; year:2022 ; extent:23
EMBO molecular medicine / European Molecular Biology Organization ; (27.07.2022) (gesamt 23)
- Urheber
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Chuang, Huai‐Chia
Hsueh, Chia‐Hsin
Hsu, Pu‐Ming
Huang, Rou‐Huei
Tsai, Ching‐Yi
Chung, Nai‐Hsiang
Chow, Yen‐Hung
Tan, Tse‐Hua
- DOI
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10.15252/emmm.202215904
- URN
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urn:nbn:de:101:1-2022072715133419851978
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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15.08.2025, 07:31 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Chuang, Huai‐Chia
- Hsueh, Chia‐Hsin
- Hsu, Pu‐Ming
- Huang, Rou‐Huei
- Tsai, Ching‐Yi
- Chung, Nai‐Hsiang
- Chow, Yen‐Hung
- Tan, Tse‐Hua
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