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Correlation between TGF‐β1 expression and proteomic profiling induced by severe acute respiratory syndrome coronavirus papain‐like protease

Identifieur interne : 003D90 ( Ncbi/Checkpoint ); précédent : 003D89; suivant : 003D91

Correlation between TGF‐β1 expression and proteomic profiling induced by severe acute respiratory syndrome coronavirus papain‐like protease

Auteurs : Shih-Wen Li ; Tsuey-Ching Yang ; Lei Wan ; Ying-Ju Lin ; Fuu-Jen Tsai ; Chien-Chen Lai ; Cheng-Wen Lin

Source :

RBID : PMC:7168038

Abstract

Severe acute respiratory syndrome (SARS) coronavirus (SARSCoV) papain‐like protease (PLpro), a deubiquitinating enzyme, demonstrates inactivation of interferon (IFN) regulatory factor 3 and NF‐κB, reduction of IFN induction, and suppression of type I IFN signaling pathway. This study investigates cytokine expression and proteomic change induced by SARSCoV PLpro in human promonocyte cells. PLpro significantly increased TGF‐β1 mRNA expression (greater than fourfold) and protein production (greater than threefold). Proteomic analysis, Western blot, and quantitative real‐time PCR assays indicated PLpro upregulating TGF‐β1‐associated genes: HSP27, protein disulfide isomerase A3 precursor, glial fibrillary acidic protein, vimentin, retinal dehydrogenase 2, and glutathione transferase omega‐1. PLpro‐activated ubiquitin proteasome pathway via upregulation of ubiquitin‐conjugating enzyme E2–25k and proteasome subunit alpha type 5. Proteasome inhibitor MG‐132 significantly reduced expression of TGF‐β1 and vimentin. PLpro upregulated HSP27, linking with activation of p38 MAPK and ERK1/2 signaling. Treatment with SB203580 and U0126 reduced PLpro‐induced expression of TGF‐β1, vimentin, and type I collagen. Results point to SARSCoV PLpro triggering TGF‐β1 production via ubiquitin proteasome, p38 MAPK, and ERK1/2‐mediated signaling.


Url:
DOI: 10.1002/pmic.201200225
PubMed: NONE
PubMed Central: 7168038


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