Found 4 records.
Displayed records from 1 to 4
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1. (CSDB ID: 41731) | report error |
| Glc-(1-1)-+ | 2HOSte-(1-2)-S,R-9b1SphdC19 SR9b1SphdC19 = (2S,3R,4E,8E)-9-methyl-4,8-sphingadienine-C18 | Show graphically |
|
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Paracoccidioides brasiliensis
(NCBI TaxID 121759,
species name lookup)
Histoplasma capsulatum
(NCBI TaxID 5037,
species name lookup)
Aspergillus fumigatus
(NCBI TaxID 746128,
species name lookup)
Sporothrix schenckii
(NCBI TaxID 29908,
species name lookup)
Aspergillus nidulans
(NCBI TaxID 162425,
species name lookup)
Candida
(NCBI TaxID 5475,
species name lookup)
Cryptococcus
(NCBI TaxID 5206,
species name lookup)
]; infection due to Histoplasma capsulatum [ICD11: XN8VH
]; infection due to Aspergillus fumigatus [ICD11: XN5Z7
]; infection due to Sporothrix schenckii [ICD11: XN6GM
]; infection due to Candida [ICD11: XN3CL
]; infection due to Cryptococcus [ICD11: XN69C
]
epm.br>Recently, glycosphingolipids have been attracting attention due to their role on biological systems as second messengers or modulators of signal transduction, affecting several events, which range from apoptosis to regulation of the cell cycle. In pathogenic fungi, glycolipids are expressed in two classes: neutral monohexosylceramides (glucosyl-or galactosylceramide) and acidic glycosylinositol phosphorylceramides (the latter class carries longer glycan chains). It is worth to mention that monohexosylceramides exhibit significant structural differences in their lipid moieties compared to their mammalian counterparts, whereas the glycosylinositol phosphorylceramides exhibit remarkable structural differences in their carbohydrate moieties in comparison to mammal glycosphingolipids counterpart. We observed that glycosylinositol phosphorylceramides are capable of promoting immune response in infected humans. In addition, inhibiting fungal glycosphingolipid biosynthetic pathways leads to an inhibition of colony formation, spore germination, cell cycle, dimorphism and hyphal growth. Other pathogens, such as trypanosomatids, also present unique glycolipids, which may have an important role for the parasite development and/or disease establishment. Regarding host-pathogen interaction, cell membrane rafts, which are enriched in sphingolipids and sterols, participate in parasite/fungal infection. In this review, it is discussed the different biological roles of (glyco) (sphingo)lipids of pathogenic/opportunistic fungi and trypanosomatids.
glycosphingolipids, leishmania, glycosylinositol phosphorylceramides, inositol phosphorylceramide, membrane rafts, pathogenic fungi
Structure type: monomer|
2. (CSDB ID: 49864) | report error |
| b-D-Xylp-(1-2)-+ | b-D-Xylp-(1-2)-+ | | | b-D-GlcpA-(1-2)-+ | | | | | -3)-a-D-Manp-(1-3)-a-D-Manp-(1-3)-a-D-Manp-(1- | b-D-Xylp-(1-4)-+ | Show graphically |
|
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Cryptococcus
(NCBI TaxID 5206,
species name lookup)
]
griffithuni.edu.au>; O'Donnell H <holly.odonnell
griffithuni.edu.au>; Routier FH <Routier.francoise
mh-hannover.de>Tiralongo J <j.tiralongo
griffith.edu.au>; Haselhorst T <t.haselhorst
griffith.edu.au>Invasive fungal infections (IFI) are an increasing threat to the developing world, with fungal spores being ubiquitous and inhaled every day. Some fungal species are commensal organisms that are part of the normal human microbiota, and, as such, do not pose a threat to the immune system. However, when the natural balance of this association is disturbed or the host's immune system is compromised, these fungal pathogens overtake the organism, and cause IFI. To understand the invasiveness of these pathogens and to address the growing problem of IFI, it is essential to identify the cellular processes of the invading organism and their virulence. In this review, we will discuss the prevalence and current options available to treat IFI, including recent reports of drug resistance. Nevertheless, the main focus of this review is to describe the glycobiology of human fungal pathogens and how various components of the fungal cell wall, particularly cell wall polysaccharides and glycoconjugates, are involved in fungal pathogenicity, their biosynthesis and how they can be potentially exploited to develop novel antifungal treatment options. We will specifically describe the nucleotide sugar transporters (NSTs) that are important in fungal survival and suggest that the inhibition of fungal NSTs may potentially be useful to prevent the establishment of fungal infections.
UDP-galactofuranose, Candida, Aspergillus, GDP-mannose, Cryptococcus, nucleotide sugar transporter, immunosuppression, invasive fungal infection, UDP-glucuronic acid, UDP-xylose
Structure type: polymer chemical repeating unit|
3. (CSDB ID: 49865) | report error |
| a-D-Manp-(1-3)-a-D-Manp-(1-4)-b-D-Galp-(1-3)-+ | b-D-GlcpA-(1-3)-+ | | | b-D-Xylp-(1-2)-+ | | | | | b-D-Xylp-(1-3)-a-D-Manp-(1-3)-a-D-Manp-(1-4)-b-D-Galp-(1-3)-+ | | | -6)-a-D-Galp-(1-6)-a-D-Galp-(1-6)-a-D-Galp-(1-6)-a-D-Galp-(1- | Show graphically |
|
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Cryptococcus
(NCBI TaxID 5206,
species name lookup)
]
griffithuni.edu.au>; O'Donnell H <holly.odonnell
griffithuni.edu.au>; Routier FH <Routier.francoise
mh-hannover.de>Tiralongo J <j.tiralongo
griffith.edu.au>; Haselhorst T <t.haselhorst
griffith.edu.au>Invasive fungal infections (IFI) are an increasing threat to the developing world, with fungal spores being ubiquitous and inhaled every day. Some fungal species are commensal organisms that are part of the normal human microbiota, and, as such, do not pose a threat to the immune system. However, when the natural balance of this association is disturbed or the host's immune system is compromised, these fungal pathogens overtake the organism, and cause IFI. To understand the invasiveness of these pathogens and to address the growing problem of IFI, it is essential to identify the cellular processes of the invading organism and their virulence. In this review, we will discuss the prevalence and current options available to treat IFI, including recent reports of drug resistance. Nevertheless, the main focus of this review is to describe the glycobiology of human fungal pathogens and how various components of the fungal cell wall, particularly cell wall polysaccharides and glycoconjugates, are involved in fungal pathogenicity, their biosynthesis and how they can be potentially exploited to develop novel antifungal treatment options. We will specifically describe the nucleotide sugar transporters (NSTs) that are important in fungal survival and suggest that the inhibition of fungal NSTs may potentially be useful to prevent the establishment of fungal infections.
UDP-galactofuranose, Candida, Aspergillus, GDP-mannose, Cryptococcus, nucleotide sugar transporter, immunosuppression, invasive fungal infection, UDP-glucuronic acid, UDP-xylose
Structure type: polymer chemical repeating unit|
4. (CSDB ID: 50854) | report error |
| b-D-Glcp-(1-6)-b-D-Glcp-(1-6)-+ | -3)-b-D-Glcp-(1-3)-b-D-Glcp-(1-3)-b-D-Glcp-(1-3)-b-D-Glcp-(1-3)-b-D-Glcp-(1- | Show graphically |
|
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Candida
(NCBI TaxID 5475,
species name lookup)
Cryptococcus
(NCBI TaxID 5206,
species name lookup)
Aspergillus fumigatus
(NCBI TaxID 746128,
species name lookup)
]; infection due to Cryptococcus [ICD11: XN69C
]; infection due to Aspergillus fumigatus [ICD11: XN5Z7
]
kcl.ac.uk>; Doores KJ <katie.doores
kcl.ac.uk>Glycosylation is an important post-translational modification that is required for structural and stability purposes and functional roles such as signalling, attachment and shielding. Many human pathogens such as bacteria display an array of carbohydrates on their surface that are non-self to the host; others such as viruses highjack the host-cell machinery and present self-carbohydrates sometimes arranged in a non-self more immunogenic manner. In combination with carrier proteins, these glycan structures can be highly immunogenic. During natural infection, glycan-binding antibodies are often elicited that correlate with long-lasting protection. A great amount of research has been invested in carbohydrate vaccine design to elicit such an immune response, which has led to the development of vaccines against the bacterial pathogens Haemophilus influenzae type b, Streptococcus pneumonia and Neisseria meningitidis. Other vaccines, e.g. against HIV-1, are still in development, but promising progress has been made with the isolation of broadly neutralizing glycan-binding antibodies and the engineering of stable trimeric envelope glycoproteins. Carbohydrate vaccines against other pathogens such as viruses (Dengue, Hepatitis C), parasites (Plasmodium) and fungi (Candida) are at different stages of development. This chapter will discuss the challenges in inducing cross-reactive carbohydrate-targeting antibodies and progress towards carbohydrate vaccines.
vaccines, immune response, Candida, glycans, Plasmodium, Dengue, Hepatitis C
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