Design of Peptide Immunotherapies for MHC Class-II-Associated Autoimmune Disorders

被引:10
|
作者
Fridkis-Hareli, Masha [1 ]
机构
[1] ATR LLC, Worcester, MA 01606 USA
关键词
AMINO-ACID COPOLYMERS; MYELIN BASIC-PROTEIN; T-CELL RESPONSES; REMITTING MULTIPLE-SCLEROSIS; ANTIGEN-PRESENTING CELLS; HISTOCOMPATIBILITY COMPLEX-MOLECULES; HLA-DR MOLECULES; RHEUMATOID-ARTHRITIS; GLATIRAMER ACETATE; EXPERIMENTAL ENCEPHALOMYELITIS;
D O I
10.1155/2013/826191
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Autoimmune disorders, that occur when autoreactive immune cells are induced to activate their responses against self-tissues, affect one percent of the world population and represent one of the top 10 leading causes of death. The major histocompatibility complex (MHC) is a principal susceptibility locus for many human autoimmune diseases, in which self-tissue antigens providing targets for pathogenic lymphocytes are bound to HLA molecules encoded by disease-associated alleles. In spite of the attempts to design strategies for inhibition of antigen presentation targeting the MHC-peptide/TCR complex via generation of blocking antibodies, altered peptide ligands (APL), or inhibitors of costimulatory molecules, potent therapies with minimal side effects have yet to be developed. Copaxone (glatiramer acetate, GA) is a random synthetic amino acid copolymer that reduces the relapse rate by about 30% in relapsing-remitting multiple sclerosis (MS) patients. Based on the elucidated binding motifs of Copaxone and of the anchor residues of the immunogenic myelin basic protein (MBP) peptide to HLA-DR molecules, novel copolymers have been designed and proved to be more effective in suppressing MS-like disease in mice. In this report, we describe the rationale for design of second-generation synthetic random copolymers as candidate drugs for a number of MHC class-II-associated autoimmune disorders.
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页数:9
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