Tolerogenic Nanoparticles Impacting B and T Lymphocyte Responses Delay Autoimmune Arthritis in K/BxN Mice.

Autor:	Srivastava A; Department of Molecular Medicine, The Scripps Research Institute, La Jolla, California 92037, United States., Arlian BM; Department of Molecular Medicine, The Scripps Research Institute, La Jolla, California 92037, United States., Pang L; Department of Molecular Medicine, The Scripps Research Institute, La Jolla, California 92037, United States., Kishimoto TK; Selecta Biosciences Inc., Watertown, Massachusetts 02472, United States., Paulson JC; Department of Molecular Medicine, The Scripps Research Institute, La Jolla, California 92037, United States.; Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, California 92037, United States.
Jazyk:	angličtina
Zdroj:	ACS chemical biology [ACS Chem Biol] 2021 Oct 15; Vol. 16 (10), pp. 1985-1993. Date of Electronic Publication: 2021 May 26.
DOI:	10.1021/acschembio.1c00212
Abstrakt:	Current treatments for unwanted antibody responses largely rely on immunosuppressive drugs compromising overall immunity. New approaches to achieve antigen-specific tolerance are desirable to avoid unwanted side effects. Several nanoparticle-based approaches that utilize different mechanisms to tolerize the B or T cell arms of the humoral immune response have shown promise for induction of antigen-specific tolerance, raising the possibility that they could work synergistically if combined. Earlier we showed that Siglec-engaging tolerance-inducing antigenic liposomes (STALs) that display both an antigen (Ag) and glycan ligands of the inhibitory co-receptor CD22 (CD22L) lead to robust antigen-specific B cell tolerance to protein antigens in naive mice. In another approach, administration of free Ag with poly(lactic- co -glycolic acid)-rapamycin nanoparticles (PLGA-R) induced robust antigen-specific tolerance through production of regulatory T cells. Here we illustrate that coadministration of STALs together with PLGA-R to naive mice induced more robust tolerance to multiple antigen challenges than either nanoparticle alone. Moreover, in K/BxN mice that develop spontaneous autoimmune arthritis to the self-antigen glucose-6-phosphate-isomerase (GPI), co-delivery of GPI-LP-CD22L and PLGA-R delayed onset of disease and in some mice prevented the disease indefinitely. The results show synergy between B cell-tolerizing STALs and T cell-tolerizing PLGA-R and the potential to induce tolerance in early stage autoimmune disease.
Databáze:	MEDLINE
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