Protective role of the capsule and impact of serotype 4 switching on Streptococcus mitis

HV Rukke, RS Kalluru, U Repnik, A Gerlini… - Infection and …, 2014 - Am Soc Microbiol
The polysaccharide capsule surrounding Streptococcus pneumoniae is essential for
virulence. Recently, Streptococcus mitis, a human commensal and a close relative of S …

New Insights into the Proteolytic System of Streptococcus thermophilus: Use of Isracidin To Characterize Cell-Associated Extracellular Peptidase Activities

Z Hafeez, C Cakir-Kiefer, JM Girardet… - Journal of agricultural …, 2015 - ACS Publications
The influence on the hydrolysis of isracidin of cell-associated extracellular aminopeptidase
and X-prolyl dipeptidyl peptidase activities in addition to protease PrtS of Streptococcus …

Effect of biofilm formation on virulence factor secretion via the general secretory pathway in Streptococcus mutans

MJ Huang, LY Meng, MW Fan, P Hu, Z Bian - Archives of Oral Biology, 2008 - Elsevier
OBJECTIVES: To investigate the role of SecA in protein secretion, and to evaluate the effect
of biofilm formation on protein secretion in Streptococcus mutans. DESIGN: S. mutans …

Direct interactions with commensal streptococci modify intercellular communication behaviors of Streptococcus mutans

JR Kaspar, K Lee, B Richard, AR Walker… - The ISME …, 2021 - academic.oup.com
The formation of dental caries is a complex process that ultimately leads to damage of the
tooth enamel from acids produced by microbes in attached biofilms. The bacterial …

Streptococcal pyrogenic exotoxin B cleaves properdin and inhibits complement-mediated opsonophagocytosis

N Tsao, WH Tsai, YS Lin, WJ Chuang, CH Wang… - Biochemical and …, 2006 - Elsevier
Streptococcal pyrogenic exotoxin B (SPE B), a cysteine protease, is an important virulence
factor in group A streptococcal (GAS) infection. The reduction of phagocytic activity by SPE B …

Anti‐phagocytic mechanisms of Streptococcus pyogenes: binding of fibrinogen to M‐related protein

HS Courtney, DL Hasty, JB Dale - Molecular microbiology, 2006 - Wiley Online Library
A key attribute of invasive Streptococcus pyogenes is their ability to resist phagocytosis and
multiply in human blood. M‐related protein (Mrp) is a major anti‐phagocytic factor but the …

[HTML][HTML] Heterologous expression of sahH reveals that biofilm formation is autoinducer-2-independent in Streptococcus sanguinis but is associated with an intact …

S Redanz, K Standar, A Podbielski… - Journal of Biological …, 2012 - ASBMB
Numerous studies have claimed deleterious effects of LuxS mutation on many bacterial
phenotypes, including bacterial biofilm formation. Genetic complementation mostly restored …

[HTML][HTML] Sub-MIC tylosin inhibits Streptococcus suis biofilm formation and results in differential protein expression

S Wang, Y Yang, Y Zhao, H Zhao, J Bai… - Frontiers in …, 2016 - frontiersin.org
Streptococcus suis (S. suis) is an important zoonotic pathogen that causes severe diseases
in humans and pigs. Biofilms of S. suis can induce persistent infections that are difficult to …

Effects of RelA on Key Virulence Properties of Planktonic and Biofilm Populations of Streptococcus mutans

JAC Lemos, TA Brown Jr, RA Burne - Infection and immunity, 2004 - Am Soc Microbiol
Streptococcus mutans is a biofilm-forming bacterium that is adapted to tolerate rapid and
dramatic fluctuations in nutrient availability, carbohydrate source, and pH in its natural …

Extracellular Enzymes with Immunomodulating Activities: Variations on a Theme in Streptococcus pyogenes

M Collin, A Olsén - Infection and Immunity, 2003 - Am Soc Microbiol
In order to successfully colonize or invade a host, microorganisms need mechanisms to
escape recognition by the immune system or to modulate the responses directed against the …