Peptidoglycan-polysaccharide fragments derived from cell walls of bacteria such as group A, but not group D, streptococci are arthritogenic in certain laboratory animals. For instance, systemic administration of these fragments into rats may induce a chronic polyarthritis which clinically, histologi
STRAIN and sex variation in the susceptibility to streptococcal CELL WALL–INDUCED POLYARTHRITIS IN THE RAT
✍ Scribed by Ronald L. Wilder; Gary B. Calandra; A. Julian Garvin; Karen D. Wright; Carl T. Hansen
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- English
- Weight
- 919 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0004-3591
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Sixteen inbred rat strains were examined for susceptibility and resistance to group A streptococcal cell wall–induced polyarthritis. The findings indicated that 2 or more genetic loci, as well as sex‐related factors, played a major role in determining susceptibility to arthritis in this model. Breeding studies demonstrated that susceptibility was a dominant or codominant trait. A positive association between the severity of arthritis and the development of chronic inflammation in multiple tissues was also observed. In strains that were relatively resistant to arthritis, chronic inflammation was generally limited to the spleen. Since translocation of the poorly degradable and phlogogenic streptococcal cell walls to the synovium and other tissues appears to initiate inflammation, these studies suggested that susceptibility might be the result of a defect in host mechanisms limiting cell wall dissemination.
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