Abstract

In FY 2018, we continued our efforts to understand the impact that phenol-soluble modulins have on biofilm development. We have completed our set of isogenic deletion mutants in S. epidermidis psm loci to investigate the role all PSMs play in S. epidermidis biofilm development and dissemination from device-related infection in vivo and are analyzing the impact of all PSMs on S. epidermidis biofilm formation. Furthermore, we have started a more encompassing analysis of sepsis caused by coagulase-negative staphylococci, which includes research on S. haemolytoicus in addition to S. epidermidis. This research addresses one of the most frequent and severe complications of biofilm formation on indwelling medical devices by staphylococci.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Investigator-Initiated Intramural Research Projects (ZIA)
Project #
1ZIAAI001080-11
Application #
9789619
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
11
Fiscal Year
2018
Total Cost
Indirect Cost

  Institution

Name
Niaid Extramural Activities
Department
Type
DUNS #
City
State
Country
Zip Code

  Publications

Zheng, Yue; He, Lei; Asiamah, Titus K et al. (2018) Colonization of medical devices by staphylococci. Environ Microbiol 20:3141-3153
Nakatsuji, Teruaki; Chen, Tiffany H; Butcher, Anna M et al. (2018) A commensal strain of Staphylococcus epidermidis protects against skin neoplasia. Sci Adv 4:eaao4502
Le, Katherine Y; Park, Matthew D; Otto, Michael (2018) Immune Evasion Mechanisms of Staphylococcus epidermidis Biofilm Infection. Front Microbiol 9:359
Da, Fei; Joo, Hwang-Soo; Cheung, Gordon Y C et al. (2017) Phenol-Soluble Modulin Toxins of Staphylococcus haemolyticus. Front Cell Infect Microbiol 7:206
Otto, Michael (2017) Staphylococcus epidermidis: a major player in bacterial sepsis? Future Microbiol 12:1031-1033
Nguyen, Thuan H; Park, Matthew D; Otto, Michael (2017) Host Response toStaphylococcus epidermidisColonization and Infections. Front Cell Infect Microbiol 7:90
Qin, Li; Da, Fei; Fisher, Emilie L et al. (2017) Toxin Mediates Sepsis Caused by Methicillin-Resistant Staphylococcus epidermidis. PLoS Pathog 13:e1006153
Qin, Li; McCausland, Joshua W; Cheung, Gordon Y C et al. (2016) PSM-Mec-A Virulence Determinant that Connects Transcriptional Regulation, Virulence, and Antibiotic Resistance in Staphylococci. Front Microbiol 7:1293
Joo, Hwang-Soo; Fu, Chih-Iung; Otto, Michael (2016) Bacterial strategies of resistance to antimicrobial peptides. Philos Trans R Soc Lond B Biol Sci 371:
Li, Tianming; He, Lei; Song, Yan et al. (2016) AraC-Type Regulator Rsp Adapts Staphylococcus aureus Gene Expression to Acute Infection. Infect Immun 84:723-34

Showing the most recent 10 out of 49 publications