Role of Toll-like receptors in lung innate defense against invasive aspergillosis. Distinct impact in immunocompetent and immunocompromized hosts.

P-82: The Role of Toll-Like Receptor 2 in Ectopic Pregnancy

Background: The innate immune system is our first line of defense against invading pathogens. Toll–like receptors (TLRs) have been identified as a key role in mediating the function of innate immune system which bridges the gap between innate and adaptive immunity. For example, TLR2 is able to act as a homodimer to recognize lipoteichoic acids of Gram-positive bacteria but as a heterodimer with...

The innate immune response to Aspergillus fumigatus.

Despite the development of new treatments, the mortality due to invasive pulmonary aspergillosis remains above 50%, reaching 95% in certain situations. The battle against Aspergillus fumigatus involves several components of the pulmonary innate immune system: cells, mediators, and natural antifungal molecules involved in the recognition and elimination of the fungus, thereby preventing coloniza...

PU.1 serves a critical role in the innate defense against Aspergillus fumigatus via dendritic cell-associated C-type lectin receptor-1 and toll-like receptors-2 and 4 in THP-1-derived macrophages

Aspergillus fumigatus (A. fumigatus) is one of the most common fungal pathogens of invasive pulmonary aspergillosis (IPA), which may be life threatening in immunocompromised individuals. The dendritic cell-associated C-type lectin receptor (Dectin-1), toll‑like receptor (TLR)-2 and TLR-4 are major pattern recognition receptors in alveolar macrophages that recognize A. fumigatus components. The ...

The Role of Toll Like Receptors in Pregnancy

Differential genes expression analysis of invasive aspergillosis: a bioinformatics study based on mRNA/microRNA

Invasive aspergillosis is a severe opportunistic infection with high mortality in immunocompromised patients. Recently, the roles of microRNAs have been taken into consideration in the immune system and inflammatory responses. Using bioinformatics approaches, we aimed to study the microRNAs related to invasive aspergillosis to understand the molecular pathways involved in the disease pathogenes...