Publications by authors named "Stephanie Sefried"

Article Synopsis
  • The PfSPZ Vaccine shows promise as a malaria vaccine, effectively providing sterile protection in both malaria-naïve and exposed adults, relying on immune responses to early liver-stage parasites.
  • A study involving 21 Tanzanian adults analyzed their immune responses to the vaccine and subsequent malaria infection, revealing robust IgG and IgM reactions to specific protein targets, regardless of HIV infection status.
  • The findings highlight PfMSP5 as a significant target for vaccine-induced immunity, indicating that protecting against malaria might be possible without interference from HIV, and underscoring the need for further exploration of this immunogen.
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Intracellular bacterial pathogens hijack the protein machinery of infected host cells to evade their defenses and cultivate a favorable intracellular niche. The intracellular pathogen Salmonella enterica subsp. Typhimurium (STm) achieves this by injecting a cocktail of effector proteins into host cells that modify the activity of target host proteins.

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RNA has been proposed as an important scaffolding factor in the nucleus, aiding protein complex assembly in the dense intracellular milieu. Architectural contributions of RNA to cytosolic signaling pathways, however, remain largely unknown. Here, we devised a multidimensional gradient approach, which systematically locates RNA components within cellular protein networks.

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Immortal hepatocyte cell lines are widely used to elucidate insulin-dependent signalling pathways and regulation of hepatic metabolism, although the often tumorigenic origin might not represent the metabolic state of healthy hepatocytes. We aimed to investigate if murine cell line AML12 and human cell line THLE-2, which are derived from healthy liver cells, are comparable to hepatoma cell line HepG2 for studying acute insulin signalling and expression of gluconeogenic enzymes and hepatokines. Insulin responsiveness of AML12 and THLE-2 cells was impaired when cells were cultured in the recommended growth medium, but comparable with HepG2 cells by using insulin-deficient medium.

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