Open Access

Vitamin C inhibits apoptosis in THP‑1 cells in response to incubation with Mycobacterium tuberculosis

  • Authors:
    • Fuyang Song
    • Yiming Wu
    • Xue Lin
    • Di Xue
    • Yujiong Wang
  • View Affiliations

  • Published online on: October 11, 2022     https://doi.org/10.3892/etm.2022.11653
  • Article Number: 717
  • Copyright: © Song et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Tuberculosis (TB) is a chronic and fatal zoonotic infectious disease caused by Mycobacterium tuberculosis (M. tb) infection. The THP‑1 cell line is a cell model for studying the function, mechanism and signaling pathways of macrophages; macrophages are the primary host cells of M. tb. Macrophages are important for the progression of tuberculosis, as they affect the release of various inflammatory cytokines, including IL‑1β, IL‑6 and TNF‑α. Vitamin C is a trace element for the human body. Its biological efficacy depends on its redox abilities and its role as a cofactor in several enzymatic reactions. However, whether vitamin C can protect THP‑1 cells from M. tb infection has not yet been reported. The present study aimed to further investigate the effects of vitamin C on M. tb infection‑induced THP‑1 cell injury and its mechanism. In the present study, MTT assay, reverse transcription‑quantitative PCR, EdU cell proliferation assay, western blotting, immunohistochemistry, flow cytometry and TUNEL staining assays were used to assess the cell viability, inflammation and apoptotic levels of THP‑1 cells induced by M. tb following vitamin C treatment. The effect of vitamin C on M. tb infection was also assessed using Balb/c mice; pulmonary injury was assessed by H&E staining of the lung tissue. The results demonstrated that vitamin C markedly attenuated cellular damage caused by M. tb infection. The results demonstrated that vitamin C reduced the expression of M. tb‑induced apoptosis‑related proteins (Cleaved‑caspase‑9, Cleaved‑caspase‑3, Bcl‑2, Cyt‑c) and inflammatory factors (IL‑1β, IL‑6, NLRP3, TNF‑α, IL‑8, NF‑κB) in THP‑1 cells and reduced apoptosis. Overall, these results suggested that vitamin C may reduce lung damage caused by M. tb infection.
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December-2022
Volume 24 Issue 6

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Copy and paste a formatted citation
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Spandidos Publications style
Song F, Wu Y, Lin X, Xue D and Wang Y: Vitamin C inhibits apoptosis in THP‑1 cells in response to incubation with <em>Mycobacterium tuberculosis</em>. Exp Ther Med 24: 717, 2022
APA
Song, F., Wu, Y., Lin, X., Xue, D., & Wang, Y. (2022). Vitamin C inhibits apoptosis in THP‑1 cells in response to incubation with <em>Mycobacterium tuberculosis</em>. Experimental and Therapeutic Medicine, 24, 717. https://doi.org/10.3892/etm.2022.11653
MLA
Song, F., Wu, Y., Lin, X., Xue, D., Wang, Y."Vitamin C inhibits apoptosis in THP‑1 cells in response to incubation with <em>Mycobacterium tuberculosis</em>". Experimental and Therapeutic Medicine 24.6 (2022): 717.
Chicago
Song, F., Wu, Y., Lin, X., Xue, D., Wang, Y."Vitamin C inhibits apoptosis in THP‑1 cells in response to incubation with <em>Mycobacterium tuberculosis</em>". Experimental and Therapeutic Medicine 24, no. 6 (2022): 717. https://doi.org/10.3892/etm.2022.11653