PMID- 38468222 OWN - NLM STAT- MEDLINE DCOM- 20240313 LR - 20240314 IS - 1471-2202 (Electronic) IS - 1471-2202 (Linking) VI - 25 IP - 1 DP - 2024 Mar 11 TI - Administration methods and dosage of poly(lactic acid)-glycol intervention to myelin oligodendrocyte glycoprotein-induced experimental autoimmune encephalitis mice. PG - 16 LID - 10.1186/s12868-024-00859-y [doi] LID - 16 AB - BACKGROUND: Myelin oligodendrocyte glycoprotein-associated disorders (MOGAD) is an autoimmune central nervous system disease. Antigen-specific immune tolerance using nanoparticles such as Polylactic-co-glycolic acid (PLGA) have recently been used as a new therapeutic tolerization approach for CNS autoimmune diseases. We examined whether MOG(1-125) conjugated with PLGA could induce MOG-specific immune tolerance in an experimental autoimmune encephalitis (EAE) mouse model. EAE was induced in sixty C57BL/6 J wild-type mice using MOG(1-125) peptide with complete Freund's Adjuvant. The mice were divided into 12 groups (n = 5 each) to test the ability of MOG(1-125) conjugated PLGA intervention to mitigate the severity or improve the outcomes from EAE with and without rapamycin compared to antigen alone or PLGA alone. EAE score and serum MOG-IgG titers were compared among the interventions.Kindly check and confirm the processed Affiliation “4” is appropriate.I confirmed the Aff 4.Affiliation: Corresponding author information have been changed to present affiliation. Kindly check and confirm.I checked and confirmed the Corresponding author's information. RESULTS: Mice with EAE that were injected intraperitoneally with MOG(1-125) conjugated PLGA + rapamycin complex showed dose-dependent mitigation of EAE score. Intraperitoneal and intravenous administration resulted in similar clinical outcomes, whereas 80% of mice treated with subcutaneous injection had a recurrence of clinical score worsening after approximately 1 week. Although there was no significant difference in EAE scores between unconjugated-PLGA and MOG-conjugated PLGA, serum MOG-IgG tended to decrease in the MOG-conjugated PLGA group compared to controls. CONCLUSION: Intraperitoneal administration of PLGA resulted in dose-dependent and longer-lasting immune tolerance than subcutaneous administration. The induction of immune tolerance using PLGA may represent a future therapeutic option for patients with MOGAD. CI - (c) 2024. The Author(s). FAU - Wright, Amy E AU - Wright AE AD - Department of Neurology, Massachusetts General Hospital, Boston, MA, USA. FAU - Nishiyama, Shuhei AU - Nishiyama S AUID- ORCID: 0000-0002-0248-1595 AD - Department of Neurology, Massachusetts General Hospital, Boston, MA, USA. snishym@med.tohoku.ac.jp. AD - Harvard Medical School, Boston, MA, USA. snishym@med.tohoku.ac.jp. AD - , Cambridge, USA. snishym@med.tohoku.ac.jp. FAU - Han, Patrick AU - Han P AD - Harvard Medical School, Boston, MA, USA. FAU - Kong, Philip AU - Kong P AD - Statera Therapeutics, New Haven, CT, USA. FAU - Levy, Michael AU - Levy M AD - Department of Neurology, Massachusetts General Hospital, Boston, MA, USA. AD - Harvard Medical School, Boston, MA, USA. LA - eng GR - R43 AI157959/AI/NIAID NIH HHS/United States GR - R43AI157959/NH/NIH HHS/United States PT - Journal Article DEP - 20240311 PL - England TA - BMC Neurosci JT - BMC neuroscience JID - 100966986 RN - 0 (Myelin-Oligodendrocyte Glycoprotein) RN - 459TN2L5F5 (poly(lactide)) RN - 0 (Glycols) RN - W36ZG6FT64 (Sirolimus) RN - 0 (Immunoglobulin G) RN - 0 (Polyesters) RN - Hashimoto's encephalitis SB - IM MH - Humans MH - Mice MH - Animals MH - Myelin-Oligodendrocyte Glycoprotein/adverse effects MH - *Encephalomyelitis, Autoimmune, Experimental/chemically induced/drug therapy MH - Mice, Inbred C57BL MH - Glycols/adverse effects MH - Sirolimus/pharmacology MH - Immunoglobulin G/adverse effects MH - *Encephalitis MH - *Polyesters MH - *Hashimoto Disease PMC - PMC10929165 OTO - NOTNLM OT - EAE OT - MOG-IgG OT - MOGAD OT - PLGA COIS- There is no competing interests to disclose. EDAT- 2024/03/12 06:42 MHDA- 2024/03/13 06:46 PMCR- 2024/03/11 CRDT- 2024/03/12 01:14 PHST- 2024/01/06 00:00 [received] PHST- 2024/02/28 00:00 [accepted] PHST- 2024/03/13 06:46 [medline] PHST- 2024/03/12 06:42 [pubmed] PHST- 2024/03/12 01:14 [entrez] PHST- 2024/03/11 00:00 [pmc-release] AID - 10.1186/s12868-024-00859-y [pii] AID - 859 [pii] AID - 10.1186/s12868-024-00859-y [doi] PST - epublish SO - BMC Neurosci. 2024 Mar 11;25(1):16. doi: 10.1186/s12868-024-00859-y.