Randomized trial of autologous bone marrow mesenchymal stem cells transplantation for hepatitis B virus cirrhosis: regulation of Treg/Th17 cells

J Gastroenterol Hepatol. 2014 Aug;29(8):1620-8. doi: 10.1111/jgh.12653.

Abstract

Background and aim: Liver cirrhosis is one of the major consequences of hepatitis B virus (HBV) infection, and transplantation of autologous bone marrow mesenchymal stem cells (ABMSCs) is one of promising therapies for patients with HBV-related liver cirrhosis (HBV-LC). However, the mechanism is unclear. The aim of the current study was to explore the role of Treg/Th17 cells in ABMSCs transplantation in patients with HBV-LC.

Methods: In this prospective study, 56 patients were enrolled and randomly assigned to transplantation group and control group. After 24-week follow-up, 39 patients completed the study (20 cases in transplantation group and 19 cases in control group). The Model for End-Stage Liver Disease scores, liver function, changes of Treg/Th17 cells, as well as related transcription factors and serum cytokines, were determined.

Results: Although patients in both groups showed significant improvement after Entecavir treatment, ABMSC transplantation further improved patients' liver function. Moreover, there was a significant increase in Treg cells and a marked decrease in Th17 cells in the transplantation group compared with control, leading to an increased Treg/Th17 ratio. Furthermore, mRNA levels of Treg-related transcription factor (Foxp3) and Th17-related transcription factor (RORγt) were increased and decreased, respectively. In addition, serum transforming growth factor-β levels were significantly higher at early weeks of transplantation, while serum levels of interleukin-17, tumor necrosis factor-α, and interleukin-6 were significantly lower in patients in the transplantation group compared with control.

Conclusion: ABMSCs transplantation was effective in improving liver function in patients with HBV-LC, which was mediated, at least in part, through the regulation of Treg/Th17 cell balance.

Keywords: Treg/Th17 cells; bone marrow mesenchymal stem cells; hepatitis B virus; liver cirrhosis; stem cell transplantation.

Publication types

  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Antiviral Agents / therapeutic use
  • Autografts
  • Combined Modality Therapy
  • Female
  • Forkhead Transcription Factors
  • Guanine / analogs & derivatives
  • Guanine / therapeutic use
  • Hepatitis B / complications*
  • Humans
  • Interleukin-17 / blood
  • Interleukin-6 / blood
  • Liver Cirrhosis / etiology*
  • Liver Cirrhosis / immunology
  • Liver Cirrhosis / therapy*
  • Lymphocyte Count
  • Male
  • Mesenchymal Stem Cell Transplantation*
  • Middle Aged
  • Nuclear Receptor Subfamily 1, Group F, Member 3
  • Prospective Studies
  • T-Lymphocytes, Regulatory / immunology*
  • Th17 Cells / immunology*
  • Transforming Growth Factor beta / blood
  • Tumor Necrosis Factor-alpha / blood

Substances

  • Antiviral Agents
  • FOXP3 protein, human
  • Forkhead Transcription Factors
  • Interleukin-17
  • Interleukin-6
  • Nuclear Receptor Subfamily 1, Group F, Member 3
  • Transforming Growth Factor beta
  • Tumor Necrosis Factor-alpha
  • entecavir
  • Guanine