miR‑101‑3p negatively regulates inflammation in systemic lupus erythematosus via MAPK1 targeting and inhibition of the NF‑κB pathway

  • Authors:
    • Xiaoying Zhao
    • Sijia Li
    • Zhe Wang
    • Ning Bai
    • Yuan Feng
  • View Affiliations

  • Published online on: March 12, 2021     https://doi.org/10.3892/mmr.2021.11998
  • Article Number: 359
Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


Abstract

Systemic lupus erythematosus (SLE) is an autoimmune disease often used as a model in genomics research. The downregulation of microRNA‑101‑3p (miR‑101‑3p) participates in the progression of SLE, although the underlying mechanisms remain to be elucidated. The present study aimed to evaluate the specific roles of miR‑101‑3p in the SLE inflammatory response and its potential mechanisms. Reverse transcription‑quantitative (RT‑q) PCR was used to profile miR‑101‑3p expression in the peripheral blood mononuclear cells (PBMCs) from 40 female patients with SLE and 20 female healthy volunteers. The interactions between miR‑101‑3p and MAPK1 were identified and evaluated using dual‑luciferase reporter and RNA pull‑down assays. The levels of IL‑10 and IFN‑γ were evaluated by enzyme‑linked immunosorbent assay. The expression of NF‑κB p65 and phosphorylated IκBα were evaluated using western blotting. miR‑101‑3p expression was demonstrated to be downregulated in SLE PBMCs. miR‑101‑3p negatively regulated IL‑10 and IFN‑γ expression in SLE samples and was demonstrated to target MAPK1. Increases in MAPK1 expression eliminated miR‑101‑3p inhibition of IL‑10 and IFN‑γ. MAPK1 activated the NF‑κB pathway in SLE PBMCs and this activation was inhibited when miR‑101‑3p was overexpressed. In addition, treatment with BAY11‑7085 (NF‑κB activator) was demonstrated to reverse the inhibitory effects of miR‑101‑3p expression on both IL‑10 and IFN‑γ in SLE PBMCs. BAY11‑7082 also markedly reduced MAPK1‑induced increases in IL‑10 and IFN‑γ in SLE PBMCs. miR‑101‑3p overexpression attenuated the inflammatory response in SLE PBMCs by inhibiting the expression of MAPK1 and blocking the NF‑κB pathway. The results revealed a novel regulatory mechanism in SLE inflammation and offer a new direction for the development of SLE treatments.
View Figures
View References

Related Articles

Journal Cover

May-2021
Volume 23 Issue 5

Print ISSN: 1791-2997
Online ISSN:1791-3004

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
x
Spandidos Publications style
Zhao X, Li S, Wang Z, Bai N and Feng Y: miR‑101‑3p negatively regulates inflammation in systemic lupus erythematosus via MAPK1 targeting and inhibition of the NF‑κB pathway. Mol Med Rep 23: 359, 2021.
APA
Zhao, X., Li, S., Wang, Z., Bai, N., & Feng, Y. (2021). miR‑101‑3p negatively regulates inflammation in systemic lupus erythematosus via MAPK1 targeting and inhibition of the NF‑κB pathway. Molecular Medicine Reports, 23, 359. https://doi.org/10.3892/mmr.2021.11998
MLA
Zhao, X., Li, S., Wang, Z., Bai, N., Feng, Y."miR‑101‑3p negatively regulates inflammation in systemic lupus erythematosus via MAPK1 targeting and inhibition of the NF‑κB pathway". Molecular Medicine Reports 23.5 (2021): 359.
Chicago
Zhao, X., Li, S., Wang, Z., Bai, N., Feng, Y."miR‑101‑3p negatively regulates inflammation in systemic lupus erythematosus via MAPK1 targeting and inhibition of the NF‑κB pathway". Molecular Medicine Reports 23, no. 5 (2021): 359. https://doi.org/10.3892/mmr.2021.11998