IL-33 Priming Enhances Peritoneal Macrophage Activity in Response to Candida albicans
نویسندگان
چکیده
IL-33 is a member of the IL-1 cytokine family and plays a role in the host defense against bacteria, viruses, and fungi. In this study, we investigated the function of IL-33 and its receptor in in vitro macrophage responses to Candida albicans. Our results demonstrate that pre-sensitization of isolated peritoneal macrophages with IL-33 enhanced their pro-inflammatory cytokine production and phagocytic activity in response to C. albicans. These macrophage activities were entirely dependent on the ST2-MyD88 signaling pathway. In addition, pre-sensitization with IL-33 also increased ROS production and the subsequent killing ability of macrophages following C. albicans challenge. These results indicate that IL-33 may increase anti-fungal activity against Candida through macrophage-mediated resistance mechanisms.
منابع مشابه
IL-33 priming regulates multiple steps of the neutrophil-mediated anti-Candida albicans response by modulating TLR and dectin-1 signals.
IL-33 is known to play an important role in Th2 immunity. In this study, we investigated the effect of IL-33 pretreatment on anti-fungal response using an acute Candida albicans peritoneal infection model. IL-33 pretreatment induced a rapid fungal clearance and markedly reduced the C. albicans infection-associated mortality. The priming effect of IL-33 occurred during multiple steps of the neut...
متن کاملIL-33 Enhances Host Tolerance to Candida albicans Kidney Infections through Induction of IL-13 Production by CD4+ T Cells.
Susceptibility to systemic Candida albicans infection is determined by immune resistance, as well as by the ability to control Candida-induced immunopathologies. We showed previously that exogenous IL-33 can increase resistance to peritoneal C. albicans infection by regulating multiple steps of the neutrophil anti-Candida response. In this study, using a mouse model of systemic candidiasis, we ...
متن کاملEffect of Aloe Vera Herbal Extract on Innate Immunity in Balb/c Mice Against Candida Albicans
Background: Based on the reports, Aloe vera extract, a herbal medicine, has antimicrobial and anti-inflammatory effects. Also, this medicinal plant has considerable effects on innate immunity through cytokine secretion which resist fungal infections such as Candida albicans. Moreover, Aloe vera is considered as immunomodulatory agent and regulate inflammatory responses. Materials and Methods: I...
متن کاملEffect of Shark Liver Oil on Peritoneal Murine Macrophages in Responses to Killed-Candida albicans
Objective(s) Shark Liver Oil (SLO) is an immunomodulator. Macrophages play a key role in host defense against pathogens like fungi. Candida albicans have mechanisms to escape immune system. We determined the effect of killed-Candida on the in vitro viability of macrophages and the effect of SLO on augmentation of this potency. Materials and Methods Peritoneal macrophages were separated and c...
متن کاملRoles of IL-33 in Resistance and Tolerance to Systemic Candida albicans Infections
IL-33 is a multifunctional cytokine that is released in response to a variety of intrinsic and extrinsic stimuli. The role of IL-33 in Candida albicans infections is just beginning to be revealed. This cytokine has beneficial effects on host defense against systemic C. albicans infections, and it promotes resistance mechanisms by which the immune system eliminates the invading fungal pathogens;...
متن کامل