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

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

PROVIDER: PRJNA1030063 | ENA |

REPOSITORIES: ENA

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

Project description: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). The primary role of Cka1 is as a protein kinase, while Ckb1/2 assist in various cellular functions. Triple mutants without all three subunits exhibited more pronounced defects than mutants lacking only Cka1, hinting at potential independent functions of Ckb1/2. In animal studies, mutants without these subunits showed a sharp decline in virulence. Moreover, CK2 disruption affected many effector proteins and disrupted key signaling pathways crucial for the pathogenicity of C. neoformans. Overall, the findings highlight the importance of the CK2 complex in fungal biology and its potential as a target for new antifungal treatments.

2023-12-21 | GSE245849 | GEO

Global proteomic analysis in Cryptococcus neoformans

Project description:Discovering the Roles of the Casein Kinase 2 Complex in the Growth, Differentiation, Stress Responses, and Pathogenicity of Cryptococcus neoformans

2024-05-23 | PXD033626 | Pride

Unravelling the pathobiological role of the fungal KEOPS complex in Cryptococcus neoformans

Project description:The kinase, putative endopeptidase and other peptides of small size (KEOPS) complex plays critical cellular functions in eukaryotes, but its pathobiological roles remains elusive in fungal pathogens. Here we comprehensively analyze the pathobiological functions of the KEOPS complex in fungal meningoencephalitis pathogen Cryptococcus neoformans. The cryptococcal KEOPS complex appears to have a linear arrangement of Pcc1-Kae1-Bud32-Cgi121, supported by physical interaction between Pcc1-Kae1, Kae1-Bud32, and Bud32-Cgi121, but does not have Gon7 ortholog, which is the part of the S. cerevisiae KEOPS complex. Deletion of PCC1, KAE1, and BUD32 causes severe growth defects with perturbed cell cycle control.

2022-10-18 | GSE208333 | GEO

Ribosome profiling of Cryptococcus neoformans H99

Project description:We measured protein translation (by ribosome profiling) and RNA levels (by polyA-enriched RNA-seq) in Cryptococcus neoformans strain H99 and Cryptococcus neoformans strain JEC21. This is the first transcriptome-wide map of translation in this species complex.

2019-06-22 | GSE133125 | GEO

CoCl2 Response in Cryptococcus neoformans

Project description:We investigated the effects of the hypoxia-mimetic CoCl2 on the gene expression of pathogenic fungus Cryptococcus neoformans. Keywords: compound treatment design

2009-05-01 | GSE11390 | GEO

Light-regulated genes in Cryptococcus neoformans

Project description:Light is a universal environmental signal perceived by many organisms, including the fungi in which light regulates both common and unique biological processes depending on the species. We conducted a whole-genome microarray analysis on the basidiomycete fungus Cryptococcus neoformans to identify light-regulated genes.

2010-04-23 | GSE21484 | GEO

Inositol regulation with Cryptococcus neoformans JEC21 70-mer whole genome array

Project description:Cryptococcus neoformans is the most common cause of fungal meningitis, with high mortality and morbidity. The reason for the frequent occurrence of Cryptococcus infection in the central nervous system (CNS) is poorly understood. In this study, we find that inositol plays an important role in the transversal of Cryptococcus across the blood-brain barrier (BBB) both in an in vitro human BBB model and in vivo animal models. The inositol stimulation of BBB crossing is dependent upon fungal inositol transporters. The upregulation of genes involved in the inositol catabolism pathway is evident in a microarray analysis. The expression of CPS1, a gene encoding the hyaluronic acid synthase in Cryptococcus, is also upregulated by the inositol treatment. The production of hyaluronic acid increased in cells treated with inositol, which leads to the enhanced binding ability of Cryptococcus cells to the human brain microvascular endothelial cells (HBMECs) constituting the BBB. Overall, our studies provide a mechanism for inositol-dependent Cryptococcus transversal of the BBB, supporting our hypothesis that host inositol utilization by the fungus contributes to Cryptococcus CNS infection.

2012-09-29 | GSE41211 | GEO

Cryptococcus neoformans proteins during fungal-macrophage interaction

Project description:Cryptococcus neoformans interactions with murine macrophages are critical for disease. In this project we analyzed fungal proteins which were co-purified with murine host proteins after interaction. H99 C. neoformans was opsonized with mAb 18B7 and addedd to murine macrophages. Then murine cells were lysed and cell extracts submitted to proteomics.

2023-03-11 | PXD024951 | Pride

Transcriptome analysis of aneuploid Cryptococcus neoformans strains

Project description:Cryptococcus neoformans lab strain H99 was used to obtain brefeldin A adaptors. Transcriptomes of 4 adaptors, each bearing a unique aneuploid, were compared to H99.

2022-09-29 | E-MTAB-12290 | biostudies-arrayexpress

Cryptococcus neoformans var. neoformans

Project description:Cryptococcus neoformans var. neoformans Genome sequencing

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