title: Does bone marrow-derived mesenchymal stem cell transfusion prevent antisperm antibody production after traumatic testis rupture?
abstract: OBJECTIVE
  To determine whether transfusion of mesenchymal stem cells (MSCs) could prevent humoral immune response and autoimmunization against sperms after traumatic testis rupture.
  
  
  METHODS
  Immunomodulatory properties of MSCs have been evaluated by a prospective cohort on 50 adult BALB/c mice. In each interventional arms of study, controlled testis rupture and surgical repair were exerted. In addition to tissue repair, single dose of 5×10(5) MSCs labeled by green fluorescent protein was delivered intravenously to 20 cases (cell therapy group). After euthanizing, seroconversion of antisperm antibody (ASA) was compared between 2 interventional groups as response of humoral immune system. Lung and testis tissues were examined for green fluorescent protein-positive cells to assess whether presence of stem cells is correlated with seroconversion rates.
  
  
  RESULTS
  Six cases had been lost during the study. Fourteen of 16 mice in cell therapy control group formed ASA (87.5%) but 6 of 18 mice (33.3%) in cell therapy group were immunized and formed ASA (P=.002). Transplanted cells were traced in lungs of 55% (n=10) of cell therapy group and none were found in trauma site. Small volume of mice blood was our main limitation to trace seroconversion or quantitative measurement of ASA in each case.
  
  
  CONCLUSIONS
  In this in vivo model of autoimmune infertility, bone marrow-derived MSC transfusion showed immunosuppressive effects on antibody production. Considering immunomodulatory properties of MSCs even in allogeneic settings, novel clinical application should be investigated further.
authors.affiliation: Urology Department, Tehran University of Medical Sciences, Tehran, Iran; Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Seyyed Mohammad Kazem
authors.initials: SM
authors.lastname: Aghamir
authors.affiliation: Urology Department, Tehran University of Medical Sciences, Tehran, Iran. Electronic address: alborz.salavati@gmail.com.
authors.forename: Alborz
authors.initials: A
authors.lastname: Salavati
authors.affiliation: Urology Department, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Reza
authors.initials: R
authors.lastname: Yousefie
authors.affiliation: Veterinary Faculty, Tehran University, Tehran, Iran.
authors.forename: Zahra
authors.initials: Z
authors.lastname: Tootian
authors.affiliation: Veterinary Faculty, Tehran University, Tehran, Iran.
authors.forename: Noushin
authors.initials: N
authors.lastname: Ghazaleh
authors.affiliation: Iran's Blood Transfusion Organization, Tehran, Iran.
authors.forename: Mostafa
authors.initials: M
authors.lastname: Jamali
authors.affiliation: Student Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Pourya
authors.initials: P
authors.lastname: Azimi
mesh_terms: D000818:Animals; D000917:Antibody Formation; D001323:Autoantibodies; D001327:Autoimmune Diseases / Q000209:etiology* / Q000517:prevention & control*; D001853:Bone Marrow; D001854:Bone Marrow Cells; D008297:Male; D045164:Mesenchymal Stem Cell Transplantation; D051379:Mice; D008807:Mice, Inbred BALB C; D011446:Prospective Studies; D012421:Rupture; D013094:Spermatozoa / Q000276:immunology*; D013737:Testis / Q000276:immunology* / Q000293:injuries*
chemical_list: D001323:Autoantibodies