Human amnion mesenchymal cells inhibit lipopolysaccharide-induced TNF-α and IL-1β production in THP-1 cells

Jun Shu*, Xiaojuan He, Lan Zhang, Hong Li, Ping Wang, Xiaojie Huang

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

13 Citations (Scopus)

Abstract

Background: Human amnion mesenchymal cells (hAMCs), isolated from the amniotic membrane of human placenta, are a unique population of mesenchymal stem cells. Recent studies demonstrated that hAMCs could inhibit the activities and functions of several immune cells. However, their effect on inflammatory macrophages is largely unknown. This study investigated the effect of hAMCs on expression of inflammatory cytokines and mitogen-activated protein kinases (MAPKs)/NF-κB pathway in human THP-1 macrophages induced by lipopolysaccharide (LPS). Results: The levels of TNF-α and IL-1β secreted by LPS- stimulated THP-1 cells were increased significantly compared with those in the control group. After co-culture with different numbers of hAMCs, the levels of TNF-α and IL-1β in LPS-stimulated THP-1 cells were significantly reduced compared with the LPS group. The mRNA expression of TNF-α and IL-1β were also markedly inhibited. Moreover, treating LPS-stimulated THP-1 cells with hAMCs supernatants could also suppress TNF-α and IL-1β production in THP-1 cells. Important signaling pathways involved in the production of TNF-α and IL-1β were affected by hAMCs co-culture: hAMCs remarkably suppressed NF-κB activation and downregulated the phosphorylation of ERK and JNK in LPS- stimulated THP-1 cells. Conclusions: Human amnion mesenchymal cells inhibited the production of TNF-α and IL-1β secreted by LPS-stimulated THP-1 cells, partly through the suppression of NF-κB activation and ERK and JNK phosphorylation.

Original languageEnglish
Article number69
JournalBiological Research
Volume48
Issue number1
DOIs
Publication statusPublished - 23 Dec 2015

Scopus Subject Areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

User-Defined Keywords

  • Human amnion mesenchymal cells
  • IL-1β
  • Immunosuppression
  • THP-1 cells
  • TNF-α

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