title: Bone marrow-derived mesenchymal stem cells reduce immune reaction in a mouse model of allergic rhinitis.
abstract: OBJECTIVE
  To determine the potential of bone marrow-derived mesenchymal stem cells (BMSCs) for immunomodulatory mechanism in mice model of allergic rhinitis (AR).
  
  
  METHODS
  BMSCs were isolated and the surface markers and stemness were analyzed. The effect of BMSCs was evaluated in BALB/c mice that were randomly divided into three groups (control group, ovalbumin (OVA) group, OVA+BMSCs group). BMSCs were administered intravenously to OVA sensitized mice on days 1, 7, 14 and 21, and subsequent OVA challenge was conducted daily from days 22 to 35. Several parameters of allergic inflammation were assessed.
  
  
  RESULTS
  Mesenchymal stem cells can be successfully isolated from bone marrow of mice. Intravenous injection of BMSCs significantly reduced allergic symptoms, eosinophil infiltration, OVA-specific immunoglobulin E (IgE), T-helper 2 (Th2) cytokine profile (interleukin (IL)-4, IL-5 and IL-13) and regulatory cytokines (IL-10). In addition, level of Th1 (IFN-γ) was significantly increased.
  
  
  CONCLUSIONS
  Administration of BMSCs effectively reduced allergic symptoms and inflammatory parameters in the mice model of AR. BMSCs treatment is potentially an alternative therapeutic modality in AR.
authors.affiliation: Department of E. N. T., The First Hospital Affiliated of China Medical University 155 Nanjing Bei Street, Shenyang 110001, China.
authors.forename: Ning
authors.initials: N
authors.lastname: Zhao
authors.affiliation: Department of E. N. T., The First Hospital Affiliated of China Medical University 155 Nanjing Bei Street, Shenyang 110001, China.
authors.forename: Yanjuan
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Department of E. N. T., The First Hospital Affiliated of Dalian Medical University 222 Zhongshan Road, Dalian 116013, China.
authors.forename: Hongfeng
authors.initials: H
authors.lastname: Liang
authors.affiliation: Department of E. N. T., The First Hospital Affiliated of China Medical University 155 Nanjing Bei Street, Shenyang 110001, China.
authors.forename: Xuejun
authors.initials: X
authors.lastname: Jiang
keywords: Cell therapy; allergic rhinitis; cytokines; immunosuppression; mesenchymal stem cell