Abstract
Class I molecules with limited polymorphism have been implicated in the host response to infectious agents. Following infection with Salmonella typhimurium, mice develop a CD8+ CTL response that specifically recognizes bacteria infected cells. An immunodominant component of the CTL response recognizes a peptide epitope derived from the Salmonella GroEL molecule that is presented by the non-polymorphic MHC class Ib molecule Qa-1. T cells recognizing the bacterial peptide also cross-recognize a homologous peptide from the mammalian hsp60 molecule. Since Qa-1 has a functional equivalent in humans, this observation may be relevant not only to the host response involved in clearing infection but also in understanding the link between infection with Gram-negative pathogens and autoimmune disease.
Original language | English (US) |
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Pages (from-to) | 1249-1259 |
Number of pages | 11 |
Journal | Microbes and Infection |
Volume | 3 |
Issue number | 14-15 |
DOIs | |
State | Published - 2001 |
Keywords
- Antigen presentation
- Autoimmunity
- Gram-negative bacteria
- MHC class Ib molecule
ASJC Scopus subject areas
- Microbiology
- Immunology
- Infectious Diseases