Bacterial capsules: Occurrence, mechanism, and function

S Gao, W Jin, Y Quan, Y Li, Y Shen, S Yuan… - npj Biofilms and …, 2024 - nature.com
In environments characterized by extended multi-stress conditions, pathogens develop a
variety of immune escape mechanisms to enhance their ability to infect the host. The …

[HTML][HTML] Group A Streptococcus interactions with the host across time and space

S Guerra, C LaRock - Current Opinion in Microbiology, 2024 - Elsevier
Highlights•Group A Streptococcus infects many body sites, causing clinically distinct
diseases.•Immune responses can promote or inhibit pathogenesis, depending on tissue and …

Methyl anthranilate deteriorates biofilm structure of Streptococcus suis and antagonizes the capsular polysaccharide defence effect

S Gao, Y Shen, S Yuan, Y Quan, X Li, Y Wang… - International Journal of …, 2023 - Elsevier
Background Streptococcus suis is an important zoonotic pathogen that often causes biofilm-
associated infection. Bacterial biofilm-dependent infection is associated with enhanced drug …

Detoxification of reactive oxygen species by the hyaluronic acid capsule of group A Streptococcus

S Wilde, A Dash, A Johnson, K Mackey… - Infection and …, 2023 - Am Soc Microbiol
The pro-inflammatory cytokine IL-6 regulates antimicrobial responses that are broadly
crucial in the defense against infection. Our prior work shows that IL-6 promotes the killing of …

Streptolysin S is required for Streptococcus pyogenes nasopharyngeal and skin infection in HLA-transgenic mice

BA Shannon, JR Hurst, RS Flannagan, HC Craig… - PLoS …, 2024 - journals.plos.org
Streptococcus pyogenes is a human-specific pathogen that commonly colonizes the upper
respiratory tract and skin, causing a wide variety of diseases ranging from pharyngitis to …

[HTML][HTML] Pathogenicity of Streptococcus iniae causing mass mortalities of yellow catfish (Tachysurus fulvidraco) and its induced host immune response

H Xu, N Zhu, Y Chen, H Yue, M Zhuo… - Frontiers in …, 2024 - frontiersin.org
The outbreak of mass mortality occurred in Tachysurus fulvidraco farm in Hubei province of
China. The pathogenic strain of Streptococcus iniae (termed 2022SI08) was isolated and …

Capsule-deficient group A Streptococcus evades autophagy-mediated killing in macrophages

YA Shi, SL Lu, T Noda, CH Chiu, C Chiang-Ni - Mbio, 2024 - Am Soc Microbiol
The hyaluronic acid capsule is crucial in protecting group A Streptococcus (GAS) against
phagocytic killing. However, there have been reported outbreaks caused by capsule …

[HTML][HTML] Outbreak of invasive Group A streptococcus disease in a nursing home in Ireland in February 2023 caused by emm type 18

C Carroll, M Meehan, R Connolly… - …, 2024 - eurosurveillance.org
An out-of-season increase in cases of invasive Group A streptococcus (iGAS) was observed
in Ireland between October 2022 and August 2023. We describe the management of an …

Hyaluronic acid production by Streptococcus zooepidemicus MW26985 using potato peel waste hydrolyzate

S Mousavi, R Esfandiar, G Najafpour-Darzi - Bioprocess and Biosystems …, 2024 - Springer
In this research, we examined the production of hyaluronic acid (HA) by Streptococcus
zooepidemicus strain MW26985 using different substrates and potato peel waste (PPW) as …

Antimicrobial, Antioxidant and Cytotoxic Effects of Essential Oil, Fatty Acids and Bioactive Compounds of Beta vulgaris var. crassa (Fodder Beet)

A Zöngür - Indian Journal of Microbiology, 2024 - Springer
Beta vulgaris var. crassa is undoubtedly a very important plant that is not used enough in the
world. In this study, it was aimed to determine the cytotoxic activities of the components …