Monomeric Recombinant TCR Ligand Reduces Relapse Rate and Severity of Experimental Autoimmune Encephalomyelitis in SJL/J Mice through Cytokine Switch

Jianya Huan, Sandhya Subramanian, Richard Jones, Cathleen Rich, Jason Link, Jeff Mooney, Dennis Bourdette, Arthur Vandenbark, Gregory G. Burrows, Halina Offner

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Our previous studies demonstrated that oligomeric recombinant TCR ligands (RTL) can treat clinical signs of experimental autoimmune encephalomyelitis (EAE) and induce long-term T cell tolerance against encephalitogenic peptides. In the current study, we produced a monomeric I-As/PLP 139-151 peptide construct (RTL401) suitable for use in SJL/J mice that develop relapsing disease after injection of PLP 139-151 peptide in CFA. RTL401 given i.v. or s.c. but not empty RTL400 or free PLP 139-151 peptide prevented relapses and significantly reduced clinical severity of EAE induced by PLP 139-151 peptide in SJL/J or (C57BL/6 x SJL)F1 mice, but did not inhibit EAE induced by PLP 178-191 or MBP 84-104 peptides in SJL/J mice, or MOG 35-55 peptide in (C57BL/6 x SJL/J)F1 mice. RTL treatment of EAE caused stable or enhanced T cell proliferation and secretion of IL-10 in the periphery, but reduced secretion of inflammatory cytokines and chemokines. In CNS, there was a modest reduction of inflammatory cells, reduced expression of very late activation Ag-4, lymphocyte function-associated Ag-1, and inflammatory cytokines, chemokines, and chemokine receptors, but enhanced expression of Th2-related factors, IL-10, TGF-β3, and CCR3. These results suggest that monomeric RTL therapy induces a cytokine switch that curbs the encephalitogenic potential of PLP 139-151-specific T cells without fully preventing their entry into CNS, wherein they reduce the severity of inflammation. This mechanism differs from that observed using oligomeric RTL therapy in other EAE models. These results strongly support the clinical application of this novel class of peptide/MHC class II constructs in patients with multiple sclerosis who have focused T cell responses to known encephalitogenic myelin peptides.

Original languageEnglish (US)
Pages (from-to)4556-4566
Number of pages11
JournalJournal of Immunology
Volume172
Issue number7
StatePublished - Apr 1 2004

Fingerprint

Autoimmune Experimental Encephalomyelitis
Cytokines
Ligands
Recurrence
Peptides
T-Lymphocytes
Chemokines
Interleukin-10
Chemokine Receptors
Myelin Sheath
Multiple Sclerosis
Therapeutics
Cell Proliferation
myelin proteolipid protein (139-151)
Lymphocytes
Inflammation
Injections

ASJC Scopus subject areas

  • Immunology

Cite this

Monomeric Recombinant TCR Ligand Reduces Relapse Rate and Severity of Experimental Autoimmune Encephalomyelitis in SJL/J Mice through Cytokine Switch. / Huan, Jianya; Subramanian, Sandhya; Jones, Richard; Rich, Cathleen; Link, Jason; Mooney, Jeff; Bourdette, Dennis; Vandenbark, Arthur; Burrows, Gregory G.; Offner, Halina.

In: Journal of Immunology, Vol. 172, No. 7, 01.04.2004, p. 4556-4566.

Research output: Contribution to journalArticle

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abstract = "Our previous studies demonstrated that oligomeric recombinant TCR ligands (RTL) can treat clinical signs of experimental autoimmune encephalomyelitis (EAE) and induce long-term T cell tolerance against encephalitogenic peptides. In the current study, we produced a monomeric I-As/PLP 139-151 peptide construct (RTL401) suitable for use in SJL/J mice that develop relapsing disease after injection of PLP 139-151 peptide in CFA. RTL401 given i.v. or s.c. but not empty RTL400 or free PLP 139-151 peptide prevented relapses and significantly reduced clinical severity of EAE induced by PLP 139-151 peptide in SJL/J or (C57BL/6 x SJL)F1 mice, but did not inhibit EAE induced by PLP 178-191 or MBP 84-104 peptides in SJL/J mice, or MOG 35-55 peptide in (C57BL/6 x SJL/J)F1 mice. RTL treatment of EAE caused stable or enhanced T cell proliferation and secretion of IL-10 in the periphery, but reduced secretion of inflammatory cytokines and chemokines. In CNS, there was a modest reduction of inflammatory cells, reduced expression of very late activation Ag-4, lymphocyte function-associated Ag-1, and inflammatory cytokines, chemokines, and chemokine receptors, but enhanced expression of Th2-related factors, IL-10, TGF-β3, and CCR3. These results suggest that monomeric RTL therapy induces a cytokine switch that curbs the encephalitogenic potential of PLP 139-151-specific T cells without fully preventing their entry into CNS, wherein they reduce the severity of inflammation. This mechanism differs from that observed using oligomeric RTL therapy in other EAE models. These results strongly support the clinical application of this novel class of peptide/MHC class II constructs in patients with multiple sclerosis who have focused T cell responses to known encephalitogenic myelin peptides.",
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AU - Jones, Richard

AU - Rich, Cathleen

AU - Link, Jason

AU - Mooney, Jeff

AU - Bourdette, Dennis

AU - Vandenbark, Arthur

AU - Burrows, Gregory G.

AU - Offner, Halina

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