@article{DoranFuldeGratzetal.2016,
  author    = {Doran, Kelly S. and Fulde, Marcus and Gratz, Nina and Kim, Brandon J. and Nau, Roland and Prasadarao, Nemani and Schubert-Unkmeir, Alexandra and Tuomanen, Elaine I. and Valentin-Weigand, Peter},
  title     = {Host-pathogen interactions in bacterial meningitis},
  series = {Acta Neuropathologica},
  volume    = {131},
  journal   = {Acta Neuropathologica},
  number    = {2},
  doi       = {10.1007/s00401-015-1531-z},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-191034},
  pages     = {185-209},
  year      = {2016},
  abstract  = {Bacterial meningitis is a devastating disease occurring worldwide with up to half of the survivors left with permanent neurological sequelae. Due to intrinsic properties of the meningeal pathogens and the host responses they induce, infection can cause relatively specific lesions and clinical syndromes that result from interference with the function of the affected nervous system tissue. Pathogenesis is based on complex host-pathogen interactions, some of which are specific for certain bacteria, whereas others are shared among different pathogens. In this review, we summarize the recent progress made in understanding the molecular and cellular events involved in these interactions. We focus on selected major pathogens, Streptococcus pneumonia, S. agalactiae (Group B Streptococcus), Neisseria meningitidis, and Escherichia coli K1, and also include a neglected zoonotic pathogen, Streptococcus suis. These neuroinvasive pathogens represent common themes of host-pathogen interactions, such as colonization and invasion of mucosal barriers, survival in the blood stream, entry into the central nervous system by translocation of the blood-brain and blood-cerebrospinal fluid barrier, and induction of meningeal inflammation, affecting pia mater, the arachnoid and subarachnoid spaces.},
  language  = {en}
}
@article{KimMcDonaghDengetal.2019,
  author    = {Kim, Brandon J. and McDonagh, Maura A. and Deng, Liwen and Gastfriend, Benjamin D. and Schubert-Unkmeir, Alexandra and Doran, Kelly S. and Shusta, Eric V.},
  title     = {Streptococcus agalactiae disrupts P-glycoprotein function in brain endothelial cells},
  series = {Fluids and Barriers of the CNS},
  volume    = {16},
  journal   = {Fluids and Barriers of the CNS},
  doi       = {10.1186/s12987-019-0146-5},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-201895},
  pages     = {26},
  year      = {2019},
  abstract  = {Bacterial meningitis is a serious life threatening infection of the CNS. To cause meningitis, blood-borne bacteria need to interact with and penetrate brain endothelial cells (BECs) that comprise the blood-brain barrier. BECs help maintain brain homeostasis and they possess an array of efflux transporters, such as P-glycoprotein (P-gp), that function to efflux potentially harmful compounds from the CNS back into the circulation. Oftentimes, efflux also serves to limit the brain uptake of therapeutic drugs, representing a major hurdle for CNS drug delivery. During meningitis, BEC barrier integrity is compromised; however, little is known about efflux transport perturbations during infection. Thus, understanding the impact of bacterial infection on P-gp function would be important for potential routes of therapeutic intervention. To this end, the meningeal bacterial pathogen, Streptococcus agalactiae, was found to inhibit P-gp activity in human induced pluripotent stem cell-derived BECs, and live bacteria were required for the observed inhibition. This observation was correlated to decreased P-gp expression both in vitro and during infection in vivo using a mouse model of bacterial meningitis. Given the impact of bacterial interactions on P-gp function, it will be important to incorporate these findings into analyses of drug delivery paradigms for bacterial infections of the CNS.},
  language  = {en}
}