Original Article

Mechanism of Probiotic VSL#3 Inhibiting NF-κB and TNF-α on Colitis through TLR4-NF-κB Signal Pathway

Abstract

Background: We aimed to investigate the effect of probiotic VSL#3 on NF-κB and TNF-α in rats with colitis and the correlation with TLR4-NF-κB signal pathway.

Methods: Sixty Sprague Dawley (SD) rats were divided into the control, model and therapy groups (n=20) according to the random number table. Rats in the model and therapy groups were modeled for colitis, and rats in the therapy group were intragastrically administered with probiotic VSL#3. The expression of TLR4 and NF-κB protein, and the levels of NF-κB, TLR4, and TNF-α mRNA in the colon tissue were detected. The concentration of TNF-α in the serum after modeling but before intragastric administration (T0), 3d (T1) and 7d after intragastric administration (T2) was detected.

Results: The expression of TLR4 and NF-κB p65 protein, and the levels of TLR4, NF-κB, and TNF-α mRAN in the therapy group decreased (P < 0.001). At T0, T1, and T2, the concentration of TNF-α in the model and control groups increased (P < 0.001). TLR4 and NF-κB in the therapy group were positively correlated with TNF-α mRAN (P < 0.050).Conclusion: In conclusion, probiotic VSL#3 inhibits the expression of NF-κB and TNF-α in rats with colitis through TLR4-NF-κB signal pathway, so it is expected to be a first choice drug for the treatment of colitis.

Conclusion: In conclusion, probiotic VSL#3 inhibits the expression of NF-κB and TNF-α in rats with colitis through TLR4-NF-κB signal pathway, so it is expected to be a first choice drug for the treatment of colitis.

 

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IssueVol 48 No 7 (2019) QRcode
SectionOriginal Article(s)
DOI https://doi.org/10.18502/ijph.v48i7.2953
Keywords
Probiotics VSL#3 NF-κB TLR4 TNF-α

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How to Cite
1.
WANG H, LI S, LI H, DU F, GUAN J, WU Y. Mechanism of Probiotic VSL#3 Inhibiting NF-κB and TNF-α on Colitis through TLR4-NF-κB Signal Pathway. Iran J Public Health. 2019;48(7):1292-1300.