title: Autologous umbilical cord blood infusion for type 1 diabetes.
abstract: OBJECTIVE
  The physical, emotional, and economic costs of type 1 diabetes (T1D) mandate continued efforts to develop effective strategies to prevent or reverse the disease. Herein, we describe the scientific and therapeutic rationale underlying efforts utilizing umbilical cord blood (UCB) as a therapy for ameliorating the progression of this autoimmune disease.
  
  
  METHODS
  We recently embarked on a pilot study to document the safety and potential efficacy of autologous UCB infusion in subjects with T1D. Under this protocol, patients recently diagnosed with the disease and for whom autologous cord blood is stored, undergo infusion. Studies are performed before infusion and every 3 to 6 months postinfusion for immunologic and metabolic assessment. To date, 15 autologous infusions have been performed.
  
  
  RESULTS
  Preliminary observations suggest that autologous cord blood transfusion is safe and provides some slowing of the loss of endogenous insulin production in children with T1D. Mechanistic studies demonstrate that umbilical cord blood contains highly functional populations of regulatory T cells (Treg) and that increased Treg populations may be found in the peripheral blood of subjects more than 6 months after cord blood infusion. We provide the rationale for cord blood-based therapies, a summary of our initial protocol, and plans for future studies designed to explore the potential of cord blood-derived regulatory T cells to treat T1D.
  
  
  CONCLUSIONS
  Prolonged follow-up and additional mechanistic efforts are urgently needed to determine if umbilical cord blood-derived stem cells can be used as part of safe and effective therapies for T1D.
authors: Department of Pediatrics, University of Florida, Gainesville, FL 32610, USA. hallemj@peds.ufl.edu
authors: Michael J
authors: MJ
authors: Haller
authors: Hilla-Lee
authors: HL
authors: Viener
authors: Clive
authors: C
authors: Wasserfall
authors: Todd
authors: T
authors: Brusko
authors: Mark A
authors: MA
authors: Atkinson
authors: Desmond A
authors: DA
authors: Schatz
mesh_terms: D036101:Cord Blood Stem Cell Transplantation / Q000379:methods*; D003922:Diabetes Mellitus, Type 1 / Q000276:immunology / Q000601:surgery*; D005312:Fetal Blood / Q000166:cytology; D006801:Humans; D007108:Immune Tolerance; D007262:Infusions, Intravenous; D010865:Pilot Projects; D014182:Transplantation, Autologous / Q000379:methods*