Unknown

Dataset Information

0

Group B Streptococcal Hemolytic Pigment Impairs Platelet Function in a Two-Step Process.


ABSTRACT: Group B streptococci (GBS) cause a range of invasive maternal-fetal diseases during pregnancy and post-partum. However, invasive infections in non-pregnant adults are constantly increasing. These include sepsis and streptococcal toxic shock syndrome, which are often complicated by systemic coagulation and thrombocytopenia. GBS express a hyper-hemolytic ornithine rhamnolipid pigment toxin with cytolytic and coagulatory activity. Here, we investigated the effects of GBS pigment on human platelets. Infections of platelets with pigmented GBS resulted initially in platelet activation, followed by necrotic cell death. Thus, this study shows that GBS pigment kills human platelets.

SUBMITTER: Jahn K 

PROVIDER: S-EPMC9139542 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature

altmetric image

Publications

Group B Streptococcal Hemolytic Pigment Impairs Platelet Function in a Two-Step Process.

Jahn Kristin K   Shumba Patience P   Quach Phoenicia P   Müsken Mathias M   Wesche Jan J   Greinacher Andreas A   Rajagopal Lakshmi L   Hammerschmidt Sven S   Siemens Nikolai N  

Cells 20220513 10


Group B streptococci (GBS) cause a range of invasive maternal-fetal diseases during pregnancy and post-partum. However, invasive infections in non-pregnant adults are constantly increasing. These include sepsis and streptococcal toxic shock syndrome, which are often complicated by systemic coagulation and thrombocytopenia. GBS express a hyper-hemolytic ornithine rhamnolipid pigment toxin with cytolytic and coagulatory activity. Here, we investigated the effects of GBS pigment on human platelets.  ...[more]

Similar Datasets

| S-EPMC7383282 | biostudies-literature
| S-EPMC2409074 | biostudies-literature
| S-EPMC4315905 | biostudies-literature
| S-EPMC88311 | biostudies-literature
| S-EPMC3674703 | biostudies-literature
| S-EPMC8506692 | biostudies-literature
| S-EPMC7900414 | biostudies-literature
2020-12-22 | GSE77152 | GEO
2022-09-30 | GSE201342 | GEO
| S-EPMC8339414 | biostudies-literature