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Links from GEO DataSets

Items: 20

1.

The role of the Ras- and cAMP-signaling pathways in stress response and sterol biosynthesis in Cryptococcus neoformans

(Submitter supplied) The cAMP-pathway plays a central role in regulation of growth, differentiation, and virulence of human pathogenic fungi, including Cryptococcus neoformans. Three major upstream signaling regulators of the adenylyl cyclase (Cac1), Ras, Aca1 (Adenylyl cyclase-associated protein 1) and G-alpha subunit protein (Gpa1), have been identified to control the cAMP-pathway in C. neoformans, but their functional relationship remains elusive. more...
Organism:
Cryptococcus neoformans var. neoformans JEC21; Cryptococcus neoformans var. grubii H99
Type:
Expression profiling by array
Platform:
GPL8638
18 Samples
Download data: GPR
Series
Accession:
GSE17338
ID:
200017338
2.

Cross talk between the cell wall integrity and cAMP/protein kinase A pathways in Cryptococcus neoformans

(Submitter supplied) Cryptococcus neoformans is a fungal pathogen of immunocompromised people that causes fatal meningitis. The fungal cell wall is essential to viability and pathogenesis of C. neoformans, and biosynthesis and repair of the wall is primarily controlled by the cell wall integrity (CWI) signaling pathway. Previous work by us and others have shown that deletion of genes encoding the four major kinases in the CWI signaling pathway, namely PKC1, BCK1, MKK2 and MPK1 results in severe cell wall phenotypes, sensitivity to a variety of cell wall stressors and, for Mpk1, reduced virulence in a mouse model. more...
Organism:
Cryptococcus neoformans
Type:
Expression profiling by high throughput sequencing
Platform:
GPL14571
12 Samples
Download data: GTF, TXT
Series
Accession:
GSE57217
ID:
200057217
3.

Toc1, Toc2, and Skn7 null mutants treated with Flucytosine

(Submitter supplied) A family of APSES transcription factor is known to be fungal-specific transcriptional regulators and play important roles in governing growth, differentiation, and virulence of diverse fungal pathogens. Yet none of APSES-like transcription factors have been identified and investigated in a basidiomycetous fungal pathogen, Cryptococcus neoformans. In the present study we discovered an APSES-like transcription factor, Msa1 (Mbp1/Swi4-like APSES protein 1), as one of novel flucytosine-responsive genes (total 194 genes) identified through comparative transcriptome analysis of C. more...
Organism:
Cryptococcus neoformans var. neoformans JEC21; Cryptococcus neoformans var. grubii H99
Type:
Expression profiling by array
Platform:
GPL8638
24 Samples
Download data: GPR
Series
Accession:
GSE30154
ID:
200030154
4.

Pleiotropic roles of Msi1-like protein, Msl1, in growth, differentiation, stress response, and virulence of Cryptococcus neoformans

(Submitter supplied) WD40 motif-containing Msi1-like (MSIL) proteins play pleiotropic cellular functions as a negative regulator of the Ras/cAMP-pathways and a component of chromatin assembly factor-I (CAF-I), and yet have not been studied in fungal pathogens. Here we identified and characterized an MSIL protein, Msl1, in Cryptococcus neoformans, which can cause fatal meningoencephalitis in humans. Notably, Msl1 was not a functional ortholog for the yeast Msi1 but played pleiotropic roles in C. more...
Organism:
Cryptococcus neoformans var. grubii; Cryptococcus neoformans var. neoformans JEC21; Cryptococcus neoformans var. grubii H99
Type:
Expression profiling by array
Platform:
GPL8638
6 Samples
Download data: GPR
Series
Accession:
GSE40303
ID:
200040303
5.

Rad53- and Chk1-Dependent DNA Damage Response Pathways Cooperatively Promote Fungal Pathogenesis and Modulate Antifungal Drug Susceptibility

(Submitter supplied) To elucidate the signaling circuitry downstream of Rad53, we compared transcriptome profiles between wild type and rad53Δ mutant strains post radiation exposure using RNAseq analysis. Of total 6,962 genes, 5,087 and 4,768 genes showed statistically different expression levels in the wild type and rad53Δ mutant strains, respectively, post radiation exposure (P-value cutoff of < 0.05; false decrease rate (FDR) cutoff of < 0.05). more...
Organism:
Cryptococcus neoformans var. grubii
Type:
Expression profiling by high throughput sequencing
Platform:
GPL25340
8 Samples
Download data: TXT
Series
Accession:
GSE117227
ID:
200117227
6.

Comparative transcriptome analysis of the CO2 sensing pathway via differential expressions of carbonic anhydrase in Cryptococcus neoformans

(Submitter supplied) Carbon dioxide (CO2) sensing, transport, and metabolism play a pivotal role in survival and proliferation of pathogenic microbes infecting human host from natural environments due to the drastic difference of CO2 levels. Carbonic anhydrases (CAs) are not only key CO2-metabolic enzymes catalyzing reversible interconversion between CO2 and bicarbonate (HCO3-), but also important CO2-signaling modulators. more...
Organism:
Cryptococcus neoformans var. neoformans JEC21; Cryptococcus neoformans var. grubii H99
Type:
Expression profiling by array
Platform:
GPL8638
17 Samples
Download data: GPR
Series
Accession:
GSE21192
ID:
200021192
7.

A defect in iron uptake enhances the susceptibility of Cryptococcus neoformans to azole antifungal drugs.

(Submitter supplied) Transcriptome profiling of wild type and cfo1 mutant with fluconazole treatment in Cryptococcus neoformans var. grubii H99 Purpose: The goals of this study are to compare cfo1 mutant transcriptome profiling (RNA-seq) to wild-type with or without fluconazole treatment in Cryptococcus neoformans var. grubii H99. Methods: mRNA profiles of wild-type and cfo1 mutant with or without fluconazole treatment were generated by RNA-Seq, using Illumina GAIIx. more...
Organism:
Cryptococcus neoformans var. grubii H99
Type:
Expression profiling by high throughput sequencing
Platform:
GPL15546
4 Samples
Download data: TXT
Series
Accession:
GSE37875
ID:
200037875
8.

A genome-wide transcriptomic analysis of radiation-responsive genes in the radiation-resistant fungus, C. neoformans

(Submitter supplied) The basidiomycetous fungus Cryptococcus has been known as radiation resistant fungi and is found in highly radioactive environments such as the damaged nuclear reactor at Chernobyl. Although Cryptococcus exhibits greater resistant for gamma radiation than the model yeast Saccharomyces cerevisiae, the resistant mechanism of gamma radiation remains elusive. To elucidate a unique regulatory system for radiation-resistance in C. more...
Organism:
Cryptococcus neoformans var. grubii H99; Cryptococcus neoformans
Type:
Expression profiling by array
Platform:
GPL18333
12 Samples
Download data: GPR
Series
Accession:
GSE80230
ID:
200080230
9.

Remodeling of global transcription patterns of C. neoformans genes mediated by stress-activated HOG signaling pathways

(Submitter supplied) The ability to sense and adapt to a hostile host environment is a crucial element for virulence of pathogenic fungi, including Cryptococcus neoformans. These cellular responses are evoked by diverse signaling cascades, including the stress-activated HOG pathway. Despite previous analysis of central components of the HOG pathway, its downstream signaling network is poorly characterized in C. neoformans. more...
Organism:
Cryptococcus neoformans var. grubii; Cryptococcus neoformans var. neoformans JEC21
Type:
Expression profiling by array
Platform:
GPL8638
100 Samples
Download data: GPR
Series
Accession:
GSE16692
ID:
200016692
10.

WT vs rim101 mutant gene expression under capsule inducing conditions

(Submitter supplied) Cryptococcus neoformans is a prevalent human fungal pathogen that must survive within various tissues in order to establish a human infection. We have identified the C. neoformans Rim101 transcription factor, a highly conserved pH-response regulator in many fungal species. The rim101- mutant strain displays growth defects similar to other fungal species in the presence of alkaline pH, increased salt concentrations, and iron limitation. more...
Organism:
Cryptococcus neoformans var. neoformans; Cryptococcus neoformans var. grubii
Type:
Expression profiling by array
Platform:
GPL4009
1 Sample
Download data: GPR
Series
Accession:
GSE23929
ID:
200023929
11.

Functional dissection of the regulatory mechanism of the atypical AP-1-like transcription factor, Yap1, in Cryptococcus neoformans

(Submitter supplied) AP-1 like transcription factors play evolutionarily conserved roles in oxidative stress responses as redox sensors in eukaryotes. In this study, we aim to elucidate the regulatory mechanism of an atypical yeast AP-1 like protein, Yap1, in the stress response and virulence of Cryptococcus neoformans. YAP1 expression was induced not only by oxidative stresses, such as H2O2 and diamide, but also by other environmental stresses, such as osmotic and membrane destabilizing stresses. more...
Organism:
Cryptococcus neoformans var. grubii H99
Type:
Expression profiling by high throughput sequencing
Platform:
GPL23176
6 Samples
Download data: XLSX
Series
Accession:
GSE136832
ID:
200136832
12.

Transcriptome analysis of Sch9-depedent thermotolerance mechanism reveals a dual functional heat shock transcription factor, Hsf1, in Cryptococcus neoformans

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.
Organism:
Cryptococcus neoformans var. grubii; Cryptococcus neoformans var. neoformans JEC21
Type:
Expression profiling by array
Platform:
GPL8638
42 Samples
Download data: GPR
Series
Accession:
GSE66510
ID:
200066510
13.

Transcriptome analysis of Sch9-depedent thermotolerance mechanism reveals a dual functional heat shock transcription factor, Hsf1, in Cryptococcus neoformans [HSF1 overexpression]

(Submitter supplied) Thermotolerance is a crucial virulence attribute for Cryptococcus neoformans, which causes fatal fungal meningitis in humans. A protein kinase, Sch9, suppresses the thermotolerance of C. neoformans but its regulatory mechanism remains unknown. Here we elucidated the Sch9-dependent and -independent signaling networks for modulating the thermotolerance of C. neoformans through a genome-wide transcriptome analysis and reverse genetics approaches. more...
Organism:
Cryptococcus neoformans var. neoformans JEC21; Cryptococcus neoformans var. grubii
Type:
Expression profiling by array
Platform:
GPL8638
6 Samples
Download data: GPR
Series
Accession:
GSE66509
ID:
200066509
14.

Transcriptome analysis of Sch9-depedent thermotolerance mechanism reveals a dual functional heat shock transcription factor, Hsf1, in Cryptococcus neoformans [mutants]

(Submitter supplied) Thermotolerance is a crucial virulence attribute for Cryptococcus neoformans, which causes fatal fungal meningitis in humans. A protein kinase, Sch9, suppresses the thermotolerance of C. neoformans but its regulatory mechanism remains unknown. Here we elucidated the Sch9-dependent and -independent signaling networks for modulating the thermotolerance of C. neoformans through a genome-wide transcriptome analysis and reverse genetics approaches. more...
Organism:
Cryptococcus neoformans var. neoformans JEC21; Cryptococcus neoformans var. grubii
Type:
Expression profiling by array
Platform:
GPL8638
36 Samples
Download data: GPR
Series
Accession:
GSE66508
ID:
200066508
15.

Effect of Nrg1 on pathogenesis of Cryptococcus neoformans

(Submitter supplied) The Cryptococcus neoformans NRG1 gene was identified using gene microarrays to define putative transcription factor genes regulated by the cyclic AMP (cAMP) signal transduction pathway. Disruption of NRG1 results in delayed capsule formation and mating, two phenotypes that are directly controlled by cAMP signaling. Putative targets of the Nrg1 transcription factor were identified using a second genome microarray to define differences in the transcriptomes of the wild-type and nrg1 mutant strains. more...
Organism:
Cryptococcus neoformans var. grubii H99; Cryptococcus neoformans var. neoformans
Type:
Expression profiling by array
Platform:
GPL4009
1 Sample
Download data: GPR
Series
Accession:
GSE17887
ID:
200017887
16.

Casein kinase 2 complex: a central regulator of multiple pathobiological signaling pathways in Cryptococcus neoformans

(Submitter supplied) Casein kinase 2 (CK2) is a potential therapeutic target for several human diseases due to its crucial roles in growth, differentiation, and metabolic homeostasis. This study delves into the role of the CK2 complex in Cryptococcus neoformans, a key fungal pathogen causing meningitis. In C. neoformans, the CK2 complex is made up of a main catalytic subunit (Cka1) and two regulatory subunits (Ckb1 and Ckb2). more...
Organism:
Cryptococcus neoformans
Type:
Expression profiling by high throughput sequencing
Platform:
GPL21073
9 Samples
Download data: CSV
Series
Accession:
GSE245849
ID:
200245849
17.

Expression Profiling of the Response to Short-Term Exposure to Fluconazole in Cryptococcus neoformans Serotype A

(Submitter supplied) Fluconazole (FLC), a triazole antifungal drug, is widely used for the maintenance therapy of cryptococcal meningoencephalitis, the most common opportunistic infection in AIDS patients, but this usage predisposes to the appearance of FLC resistance, especially in patients with no or limited access to highly active antiretroviral therapy. We used microarray analysis to examine changes in the gene expression profile of C. more...
Organism:
Cryptococcus neoformans; Cryptococcus neoformans var. grubii H99
Type:
Expression profiling by array
Platform:
GPL11114
2 Samples
Download data: TXT
Series
Accession:
GSE24927
ID:
200024927
18.

S. cerevisiae mutant with a constitutively activated Ras/cAMP pathway

(Submitter supplied) Comparison of the transcriptomes of Saccharomyces cerevisiae wild type FY23 and a PDE2 deletion mutant DJ28. Keywords = PDE2 Keywords = Ras/cAMP pathway Keywords: other
Organism:
Saccharomyces cerevisiae
Type:
Expression profiling by array
Platform:
GPL422
10 Samples
Download data
Series
Accession:
GSE600
ID:
200000600
19.

Extension of O-linked mannosylation in the Golgi is critical for cell wall integrity signaling and interaction with host cells in Cryptococcus neoformans pathogenesis

(Submitter supplied) Purpose: To identify the downstream gene sets regulated by Mpk1p in C. neoformans normal and Tunicamycin-treated conditions, we compared the RNA-seq based transcriptional profiles. Methods: Total RNA was isolated according to the RNeasy Mini Kit (Qiagen) and all procedure for RNA sequencing were conducted by ebiogen. The mRNA was isolated by using the Poly(A) RNA Selection Kit (LEXOGEN) and isolated mRNAs were used for the cDNA synthesis. more...
Organism:
Cryptococcus neoformans
Type:
Expression profiling by high throughput sequencing
Platform:
GPL28713
8 Samples
Download data: XLSX
Series
Accession:
GSE198875
ID:
200198875
20.

Identification of osmotic stress-responsive genes dependent on HogA and AtfA in Aspergillus nidulans

(Submitter supplied) Microarray analysis was used to identify the osmotic stress-responsive genes dependent on HogA and AtfA in the filamentous fungus Aspergillus nidulans. In order to identify such genes, we conducted the several types of experiment. One was a comparison between wild type with and without osmotic shock (Exp.6). Others were comparison between wild type with osmotic shock and each mutant (hogA, Exp.7; atfA, Exp.8) with osmotic shock. more...
Organism:
Aspergillus nidulans
Type:
Expression profiling by array
Platform:
GPL7364
6 Samples
Download data: GPR
Series
Accession:
GSE16566
ID:
200016566
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