Desmethoxycurcumin aids IFNα's anti-HBV activity by antagonising CRYAB reduction and stabilising IFNAR1 protein

The eradication of chronic hepatitis B (CHB) caused by hepatitis B virus (HBV) infection is a crucial goal in clinical practice. Enhancing the anti-HBV activity of interferon type I (IFNI) is a key strategy for achieving a functional cure for CHB. In this study, we investigated the effect of combined treatment with IFNα and Desmethoxycurcumin (DMC) on HBV replication in HepG2 cells and explored the underlying mechanism. Our results indicated IFNα alone was ineffective in completely inhibiting HBV replication, which was attributed to the virus-induced down-regulation of IFNI receptor 1 (IFNAR1) protein. However, the addition of a low dose of DMC significantly synergized with IFNα, leading to notable enhancement of IFNα anti-HBV activity. This effect was achieved by stabilising the IFNAR1 protein. Further investigation revealed that low dose DMC effectively blocked the ubiquitination-mediated degradation of IFNAR1, which was accomplished by rescuing the protein levels of alphaB-crystallin (CRYAB) and orchestrating the interaction between CRYAB and the E3 ubiquitin ligase, β-Trcp. Importantly, over-expression of CRYAB was found to favour the antiviral activity of IFNα against HBV replication. In conclusion, our study demonstrates that low-dose DMC enhanced the anti-HBV activity of IFNα by counteracting the reduction of CRYAB and stabilising the IFNAR1 protein.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:31

Enthalten in:

Journal of drug targeting - 31(2023), 9 vom: 01. Dez., Seite 976-985

Sprache:

Englisch

Beteiligte Personen:

Wei, Jinlai [VerfasserIn]
Deng, Xichuan [VerfasserIn]
Dai, Wenying [VerfasserIn]
Xie, Lingxin [VerfasserIn]
Zhang, Guangyuan [VerfasserIn]
Fan, Xinyue [VerfasserIn]
Li, Xinyue [VerfasserIn]
Jin, Zhixing [VerfasserIn]
Xiao, Qin [VerfasserIn]
Chen, Tingting [VerfasserIn]

Links:

Volltext

Themen:

Antagonize
CRYAB
Carrier Proteins
Curcumin
DMC
Desmethoxycurcumin
HBV immune escape
IFNAR1 degradation
IT942ZTH98
Interferon-alpha
Journal Article

Anmerkungen:

Date Completed 14.02.2024

Date Revised 14.02.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1080/1061186X.2023.2273200

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM36343898X