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Article

USP22 promotes pro‑inflammatory responses in Pseudomonas aeruginosa‑induced keratitis by targeting TRAF6

  • Authors:
    • Di Chen
    • Dawei Song
    • Yibin Ma
    • Weizhao Lu
    • Jianfeng Qiu
    • Yi Wang
  • View Affiliations / Copyright

    Affiliations: Department of Ophthalmology, Second Affiliated Hospital of Shandong First Medical University and Shandong Academy of Medical Sciences, Tai'an, Shandong 271000, P.R. China, Department of Ophthalmology, Tai'an City Central Hospital, Tai'an, Shandong 271000, P.R. China, Department of Radiology, Shandong First Medical University and Shandong Academy of Medical Sciences, Tai'an, Shandong 271000, P.R. China, Department of Ophthalmology, Shandong First Medical University and Shandong Academy of Medical Sciences, Tai'an, Shandong 271000, P.R. China
  • Article Number: 149
    |
    Published online on: March 2, 2022
       https://doi.org/10.3892/mmr.2022.12665
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Abstract

Pseudomonas aeruginosa (PA)‑induced keratitis is characterized by inflammatory epithelial edema, stromal infiltration, corneal ulceration and can lead to vision loss. The present study aimed to study the effect of ubiquitin‑specific protease 22 (USP22) on PA‑induced keratitis. Using RT‑qPCR and western blotting, significantly increased expression of USP22 was identified in mouse corneas and cultured RAW264.7 cells following PA stimulation. In addition, the results of in vivo experiments, western blot assay and ELISA suggested that the silencing of USP22 attenuated disease progression, downregulated the NF‑κB pathway and suppressed the expression of pro‑inflammatory cytokines following PA stimulation. Notably, it was identified that the expression of tumor necrosis factor receptor‑associated factor 6 (TRAF6) was decreased by silencing of USP22 and USP22 was found to remove lysine 48‑linked poly‑ubiquitination chains from TRAF6 to stabilize TRAF6 expression and these effects were clearly aggravated following PA infection.
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Copy and paste a formatted citation
Spandidos Publications style
Chen D, Song D, Ma Y, Lu W, Qiu J and Wang Y: USP22 promotes pro‑inflammatory responses in <em>Pseudomonas aeruginosa</em>‑induced keratitis by targeting TRAF6. Mol Med Rep 25: 149, 2022.
APA
Chen, D., Song, D., Ma, Y., Lu, W., Qiu, J., & Wang, Y. (2022). USP22 promotes pro‑inflammatory responses in <em>Pseudomonas aeruginosa</em>‑induced keratitis by targeting TRAF6. Molecular Medicine Reports, 25, 149. https://doi.org/10.3892/mmr.2022.12665
MLA
Chen, D., Song, D., Ma, Y., Lu, W., Qiu, J., Wang, Y."USP22 promotes pro‑inflammatory responses in <em>Pseudomonas aeruginosa</em>‑induced keratitis by targeting TRAF6". Molecular Medicine Reports 25.5 (2022): 149.
Chicago
Chen, D., Song, D., Ma, Y., Lu, W., Qiu, J., Wang, Y."USP22 promotes pro‑inflammatory responses in <em>Pseudomonas aeruginosa</em>‑induced keratitis by targeting TRAF6". Molecular Medicine Reports 25, no. 5 (2022): 149. https://doi.org/10.3892/mmr.2022.12665
Copy and paste a formatted citation
x
Spandidos Publications style
Chen D, Song D, Ma Y, Lu W, Qiu J and Wang Y: USP22 promotes pro‑inflammatory responses in <em>Pseudomonas aeruginosa</em>‑induced keratitis by targeting TRAF6. Mol Med Rep 25: 149, 2022.
APA
Chen, D., Song, D., Ma, Y., Lu, W., Qiu, J., & Wang, Y. (2022). USP22 promotes pro‑inflammatory responses in <em>Pseudomonas aeruginosa</em>‑induced keratitis by targeting TRAF6. Molecular Medicine Reports, 25, 149. https://doi.org/10.3892/mmr.2022.12665
MLA
Chen, D., Song, D., Ma, Y., Lu, W., Qiu, J., Wang, Y."USP22 promotes pro‑inflammatory responses in <em>Pseudomonas aeruginosa</em>‑induced keratitis by targeting TRAF6". Molecular Medicine Reports 25.5 (2022): 149.
Chicago
Chen, D., Song, D., Ma, Y., Lu, W., Qiu, J., Wang, Y."USP22 promotes pro‑inflammatory responses in <em>Pseudomonas aeruginosa</em>‑induced keratitis by targeting TRAF6". Molecular Medicine Reports 25, no. 5 (2022): 149. https://doi.org/10.3892/mmr.2022.12665
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