Abstract:
:A series of three synthetic peptides spanning H-2E alpha k chain residues (90-110), (110-130), and (130-150) were synthesized and purified. Mice representative of H-2E- (B6, B10, B10.M, B10.Q, B10.S) and H-2E+ (B10.D2, B10.K, B10.RIII) were immunized with individual peptides and lymph node cells challenged in vitro. Both B6 and B10 mice respond to in vitro challenge to peptides (90-110) (cpm 20,000), (110-130) (cpm 40,000), and (130-150) (cpm 60,000). In contrast all H-2E+ haplotypes were unresponsive to all three peptides (cpms < 10,000). Furthermore, B10 mice could be rendered hyporesponsive to E alpha k peptide challenge following expression of an E alpha k transgene or mating to an H-2E+ strain. The H-2Ad,k,f,q,s alleles were associated with reduced peptide recognition. Furthermore, alteration of the H-2A beta chain in bm12 mutant mice resulted in impaired responses to all three peptides. Immunization with synthetic peptides comprising major histocompatibility molecules may yield insights into mechanisms of self-tolerance.
journal_name
Transplantationjournal_title
Transplantationauthors
Krco CJ,Beito TG,David CSdoi
10.1097/00007890-199211000-00029subject
Has Abstractpub_date
1992-11-01 00:00:00pages
920-3issue
5eissn
0041-1337issn
1534-6080journal_volume
54pub_type
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