title: [Plasma from patients with systemic lupus erythematosus inhibits suppressive activity of mesenchymal stem cells against lupus B lymphocytes].
abstract: OBJECTIVE
  To investigate whether plasma from patients with systemic lupus erythematosus (SLE) inhibits the suppressive effects of mesenchymal stem cells (MSCs) on lupus B lymphocytes.
  
  
  METHODS
  MSCs isolated and expanded from the bone marrow of healthy donors were co-cultured with B cells purified from the peripheral blood of SLE patients in the presence of fetal bovine serum or pooled plasma from SLE patients, and the proliferation and maturation of the B lymphocytes were analyzed.
  
  
  RESULTS
  s Co-culture with normal MSCs obviously inhibited the proliferation of lupus B cells and suppressed the maturation of B lymphocytes, which showed lowered expressions of CD27 and CD38. The pooled plasma from SLE patients significantly inhibited the suppressive effects of normal MSCs on B cell proliferation and maturation.
  
  
  CONCLUSIONS
  Plasma from SLE patients negatively modulates the effects of normal MSCs in suppressing lupus B cell proliferation and maturation to affect the therapeutic effect of MSC transplantation for treatment of SLE. Double filtration plasmapheresis may therefore prove beneficial to enhance the therapeutic effects of MSC transplantation for SLE.
authors: Department of Science and Technology, Guizhou Provincial People's Hospital, Guiyang 550000, China. E-mail: nienyj@hotmail.com.
authors: Ying-Jie
authors: YJ
authors: Nie
authors: Li-Mei
authors: LM
authors: Luo
authors: Yan
authors: Y
authors: Zha
authors: Li
authors: L
authors: Sun
authors: Ji
authors: J
authors: Luo
authors: Run-Sang
authors: RS
authors: Pan
authors: Xiao-Bin
authors: XB
authors: Tian
mesh_terms: D001402:B-Lymphocytes / Q000473:pathology*; D049109:Cell Proliferation; D018920:Coculture Techniques; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000097:blood*; D008213:Lymphocyte Activation; D059630:Mesenchymal Stem Cells / Q000166:cytology*; D010949:Plasma