Article of Significant Interest in This Issue
Year: 2025
Type: article
Abstract: Group A Streptococcus virulence is promoted by superantigen toxins that strongly activate T cells. Johnson et al. (e00405-24) show a critical dual role for a bacterial protease in the post-translational regulation of superantigens. Acting as a rheostat, it can degrade them to limit excessive activity and also amplify their activity through independent, complementary targeting of host cell signaling. These results show additional selection in the evolution of these toxins and new targets in the control of rheumatic fever and toxic shock syndrome.
Source: Infection and Immunity
DOI: 10.1128/iai.00105-25
Language: English
Field: Medicine
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W4408302624
