Project description:To investigate the gene expression profilie of systemic Candida albicans infection(invasive candidiasis), we designed RNA-Seq analysis of peripheral blood mononuclear cells for Control mice(uinfected) and systemic Candida albicans-infected mice(infected for 7days).
Project description:The effects of Candida albicans on the metastatic activity of oral squamous cell carcinoma was observed in vitro and in vivo. In the in vitro experimental setup HO-1-N-1 and HSC-2 human oral squamous cell carcinoma cell lines were treated with zymosan, heat-killed Candida albicans, heat-killed C. parapsilosis, live C. albicans and live C. parapsilosis. Whole transcriptomics was performed of the human tumor cells. In the in vivo experiment human HSC-2 tumor cells were injected to the tongue of mice. Whole transcriptomic analysis was performed of the human HSC-2 derived tumor cells comparing control tumor and oral candidiasis treated tumor.
Project description:Candida albicans is exposed to a different host environment during different site of infection. Thus, different virulence factors may be active during differenttypes of infection. However,little is known about the C. albicans genes that are required for the initiation and maintenance of candidiasis. To identify potential virulence factors relevant to hematogenously disseminated candidiasis, we determined the transcriptional response of C. albicans to human umbilical vein endothelial cells (HUVECs) in vitro. Keywords: cell interaction
Project description:Candida albicans is the most common human fungal pathogen causing mucosal and systemic infections. However, human antifungal immunity remains poorly defined. By integrating transcriptional analysis and functional genomics we identified Candida-specific host defense mechanisms in humans. Candida induced significant (p<10-35) expression of genes from the type I interferon (IFN) pathway in human peripheral blood mononuclear cells. This unexpectedly prominent role of type I IFN pathway in anti-Candida host defense was supported by additional evidence. Polymorphisms in type I IFN genes modulated Candida-induced cytokine production and were correlated with susceptibility to systemic candidiasis. In in-vitro experiments, type I IFNs skewed Candida-induced inflammation from a Th17-response toward a Th1-response. Patients with chronic mucocutaneaous candidiasis displayed defective expression of genes in the type I IFN pathway. These findings indicate that the type I IFN pathway is a main signature of Candida-induced inflammation and plays a crucial role in anti-Candida host defense in humans.
Project description:Candida albicans is exposed to a different host environment during oropharyngeal candidiasis (OPC) compared to hematogenously disseminated candidiasis. Thus, different virulence factors may be active during these two types of infection. However,little is known about the C. albicans genes that are required for the initiation and maintenance of OPC. To identify potential virulence factors relevant to this disease, we determined the transcriptional response of C. albicans to oral epithelial cells in vitro. Keywords: cell interaction
Project description:Candida albicans is the most common human fungal pathogen causing mucosal and systemic infections. However, human antifungal immunity remains poorly defined. By integrating transcriptional analysis and functional genomics we identified Candida-specific host defense mechanisms in humans. Candida induced significant (p<10-35) expression of genes from the type I interferon (IFN) pathway in human peripheral blood mononuclear cells. This unexpectedly prominent role of type I IFN pathway in anti-Candida host defense was supported by additional evidence. Polymorphisms in type I IFN genes modulated Candida-induced cytokine production and were correlated with susceptibility to systemic candidiasis. In in-vitro experiments, type I IFNs skewed Candida-induced inflammation from a Th17-response toward a Th1-response. Patients with chronic mucocutaneaous candidiasis displayed defective expression of genes in the type I IFN pathway. These findings indicate that the type I IFN pathway is a main signature of Candida-induced inflammation and plays a crucial role in anti-Candida host defense in humans. 3 healthy controls and 2 CMC patients
Project description:Candida albicans is exposed to a different host environment during different site of infection. Thus, different virulence factors may be active during differenttypes of infection. However,little is known about the C. albicans genes that are required for the initiation and maintenance of candidiasis. To identify potential virulence factors relevant to hematogenously disseminated candidiasis, we determined the transcriptional response of C. albicans to human umbilical vein endothelial cells (HUVECs) in vitro. Keywords: cell interaction Two different Candida albicans strains, CAI4-URA and a clinical isolate 36082, were used to identify the transcriptional response of C. albicans to HUVECs. The strains were incubated with either the HUVECs or bare plastic for 45, 90, and 180 min. C. albicans RNA was extracted and the transcriptional profile of these organisms was analyzed using the C. albicans oligonucleotide microarray. The transcriptional response to HUVECs was compared to that to bare plastic as a control condition. Each time point contains six biological replicates, three of which are from each C. albicans strain.
Project description:Goal: We employed RNA-seq to identify targets of regulation of the Candida albicans transcription regulator CUP9. The cup9 deletion mutant strain displays increased fitness in a mouse model of oropharyngeal candidiasis.
2018-02-01 | GSE108073 | GEO
Project description:Candida albicans isolates from an oropharyngeal Candidiasis (OPC) model