title: Resetting the adaptive immune system after autologous stem cell transplantation: lessons from responses to vaccines.
abstract: Autologous stem cell transplantation (ASCT) to treat autoimmune diseases (AID) is thought to reset immunological memory directed against autoantigens. This hypothesis can only be studied indirectly because the exact nature of the pathogenetic autoantigens is unknown in most AID. Therefore, 19 children with juvenile idiopathic arthritis (JIA) or systemic lupus erythematodes (SLE) and 10 adults with multiple sclerosis (MS) were vaccinated with the T-cell-dependent neoantigen rabies and the recall antigen tetanus toxoid after, respectively before, bone marrow harvest. Both vaccinations were repeated after ASCT. All except two of the responders mounted a primary antibody response to rabies after revaccination, and 44% of the responders mounted a primary antibody response to tetanus boost after ASCT. These data show that immunological memory to a neoantigen is lost in most patients with AID after immunoablative pretreatment; however, memory to a recall antigen boosted before bone marrow harvest is only lost in part of the patients. Disease progression was arrested in all patients with JIA/SLE except one, but only in a minority of MS patients. Clinical outcome on a per case basis was not associated with the profile of the immune response toward the vaccination antigens after ASCT.
authors: Department of Pediatrics, Leiden University Medical Center, 2300 RC, Leiden, The Netherlands. d.m.c.brinkman@lumc.nl
authors: D M C
authors: DM
authors: Brinkman
authors: C M
authors: CM
authors: Jol-van der Zijde
authors: M M
authors: MM
authors: ten Dam
authors: P A W
authors: PA
authors: te Boekhorst
authors: R
authors: R
authors: ten Cate
authors: N M
authors: NM
authors: Wulffraat
authors: R Q
authors: RQ
authors: Hintzen
authors: J M
authors: JM
authors: Vossen
authors: M J D
authors: MJ
authors: van Tol
mesh_terms: D000293:Adolescent; D000328:Adult; D001327:Autoimmune Diseases / Q000628:therapy; D002648:Child; D002675:Child, Preschool; D005260:Female; D018380:Hematopoietic Stem Cell Transplantation; D006801:Humans; D007113:Immunity, Innate; D007156:Immunologic Memory / Q000276:immunology*; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011819:Rabies Vaccines / Q000276:immunology*; D013745:Tetanus Toxoid / Q000276:immunology*; D014182:Transplantation, Autologous; D016896:Treatment Outcome
chemical_list: D011819:Rabies Vaccines; D013745:Tetanus Toxoid
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