PMID- 25860995 OWN - NLM STAT- MEDLINE DCOM- 20160331 LR - 20190223 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 10 IP - 4 DP - 2015 TI - Immunosuppression in early postnatal days induces persistent and allergen-specific immune tolerance to asthma in adult mice. PG - e0122990 LID - 10.1371/journal.pone.0122990 [doi] LID - e0122990 AB - Bronchial asthma is a chronic airway inflammatory condition with high morbidity, and effective treatments for asthma are limited. Allergen-specific immunotherapy can only induce peripheral immune tolerance and is not sustainable. Exploring new therapeutic strategies is of great clinical importance. Recombinant adenovirus (rAdV) was used as a vector to make cells expressing cytotoxic T lymphocyte-associated antigen-4-immunoglobulin (CTLA4Ig) a soluble CTLA4 immunoglobulin fusion protein. Dendritic cells (DCs) were modified using the rAdVs together with allergens. Then these modified DCs were transplanted to mice before allergen sensitization. The persistence and specificity of immune tolerance were evaluated in mice challenged with asthma allergens at 3 and 7 months. DCs modified by CTLA4Ig showed increased IL-10 secretion, decreased IL-12 secretion, and T cell stimulation in vitro. Mice treated with these DCs in the early neonatal period developed tolerance against the allergens that were used to induce asthma in the adult stage. Asthma symptoms, lung damage, airway reactivity, and inflammatory response all improved. Humoral immunity indices showed that this therapeutic strategy strongly suppressed mice immune responses and was maintained for as long as 7 months. Furthermore, allergen cross-sensitization and challenge experiments demonstrated that this immune tolerance was allergen-specific. Treatment with CTLA4Ig modified DCs in the early neonatal period, inducing persistent and allergen-specific immune tolerance to asthma in adult mice. Our results suggest that it may be possible to develop a vaccine for asthma. FAU - Chen, Yan AU - Chen Y AD - Department of Respiratory Medicine, Children's Hospital of Fudan University, Shanghai, China. FAU - Zhang, Jin AU - Zhang J AD - Department of Respiratory Medicine, Children's Hospital of Fudan University, Shanghai, China. FAU - Lu, Yong AU - Lu Y AD - Department of Respiratory Medicine, Children's Hospital of Fudan University, Shanghai, China. FAU - Wang, Libo AU - Wang L AD - Department of Respiratory Medicine, Children's Hospital of Fudan University, Shanghai, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150410 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Allergens) RN - 0 (CTLA-4 Antigen) RN - 0 (Recombinant Fusion Proteins) RN - 130068-27-8 (Interleukin-10) RN - 187348-17-0 (Interleukin-12) RN - 37341-29-0 (Immunoglobulin E) RN - 9006-59-1 (Ovalbumin) SB - IM MH - Adenoviridae/genetics MH - Allergens/*immunology MH - Animals MH - Animals, Newborn MH - Asthma/immunology/metabolism/*pathology MH - Bone Marrow Cells/cytology MH - CTLA-4 Antigen/genetics MH - Cells, Cultured MH - Dendritic Cells/cytology/immunology/metabolism MH - Desensitization, Immunologic MH - Genetic Vectors/genetics/metabolism MH - HEK293 Cells MH - Humans MH - *Immune Tolerance MH - Immunity, Humoral MH - Immunoglobulin E/blood MH - Interleukin-10/blood/metabolism MH - Interleukin-12/blood/metabolism MH - Mice MH - Mice, Inbred BALB C MH - Ovalbumin/immunology MH - Recombinant Fusion Proteins/biosynthesis/genetics PMC - PMC4393286 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2015/04/11 06:00 MHDA- 2016/04/01 06:00 PMCR- 2015/04/10 CRDT- 2015/04/11 06:00 PHST- 2014/07/19 00:00 [received] PHST- 2015/02/26 00:00 [accepted] PHST- 2015/04/11 06:00 [entrez] PHST- 2015/04/11 06:00 [pubmed] PHST- 2016/04/01 06:00 [medline] PHST- 2015/04/10 00:00 [pmc-release] AID - PONE-D-14-32363 [pii] AID - 10.1371/journal.pone.0122990 [doi] PST - epublish SO - PLoS One. 2015 Apr 10;10(4):e0122990. doi: 10.1371/journal.pone.0122990. eCollection 2015.