Publications by authors named "G Tiraby"

Skin is a very suitable target for gene therapy and DNA vaccination due to its accessibility, its surface and its ability to produce transgenes. Gene electrotransfer (GET) to the skin is under development for clinical applications for DNA vaccine or local treatment such as wound healing. Local treatments are effective if the expression of the plasmid affects only the local environment (skin) by inducing an efficient concentration over a prolonged period.

View Article and Find Full Text PDF

Gene transfer into cells or tissue by application of electric pulses (i.e. gene electrotransfer (GET)) is a non-viral gene delivery method that is becoming increasingly attractive for clinical applications.

View Article and Find Full Text PDF

Dectin-2 is a C-type lectin involved in the recognition of several pathogens such as Aspergillus fumigatus, Candida albicans, Schistosoma mansonii, and Mycobacterium tuberculosis that triggers Th17 immune responses. Identifying pathogen ligands and understanding the molecular basis of their recognition is one of the current challenges. Purified M.

View Article and Find Full Text PDF
Article Synopsis
  • The text discusses a study on a major human pathogen that can survive inside host cells and evade the immune system by inhibiting essential immune responses like phagosome maturation and cytokine production.* -
  • Researchers used a transposon mutant library of a virulent pathogen to identify mutants that activate NF-κB, a crucial immune regulator, revealing that one mutant lacked the ability to produce specific glycolipids known as sulfoglycolipids.* -
  • The study concludes that sulfoglycolipids act as antagonists for Toll-like receptors, specifically interfering with NF-κB activation and cytokine production, thereby showcasing a novel mechanism by which the pathogen undermines the innate immune defense and enhances its virulence.*
View Article and Find Full Text PDF

TLR agonists are currently being developed and tested as adjuvants in various formulations to optimize the immunogenicity and efficacy of vaccines. The aim of this study was to evaluate the immunostimulatory properties of a novel compound incorporating covalently linked moieties designed to stimulate both TLR2 and TLR7. This dual TLR2/TLR7 agonist induced the maturation of dendritic cells and primed substantial populations of cytolytic and highly polyfunctional effector CD8 T cells in vitro, and safely potentiated the immunogenic properties of a nanoparticulate Ag in vivo, eliciting humoral responses with a balanced T1/T2 profile in mice.

View Article and Find Full Text PDF