1,085 results match your criteria: "Institute for Glycomics[Affiliation]"

Could have carcinogenic potential? A critical review of current evidence.

Crit Rev Microbiol

January 2025

School of Biomedical Sciences at Translational Research Institute (TRI), Queensland University of Technology (QUT), Brisbane, QLD, Australia.

There is growing evidence that microbial dysbiosis is intimately related to carcinogenesis across several types of human cancer. is best known for causing acute exudative genitourinary infection in males. can also cause chronic, asymptomatic infection of the female genitourinary tract along with the oropharynx and rectum of both sexes.

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  • Knowledge gaps in understanding human immunity to Streptococcus pyogenes have slowed vaccine development, prompting researchers to establish a human challenge model to study this infection.
  • The study analyzed antibody responses in serum and saliva from participants, revealing that those who developed pharyngitis had strong serum IgG responses to vaccine antigens but weaker mucosal IgA responses.
  • The findings indicate that past exposure to the bacteria affects immune responses, underscoring the need to consider these complexities when evaluating potential vaccines in future trials.
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High-efficient white blood cell separation from whole blood using cascaded inertial microfluidics.

Talanta

March 2025

Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, Queensland, 4111, Australia; School of Engineering and Built Environment, Griffith University, Nathan, Queensland, 4111, Australia. Electronic address:

Article Synopsis
  • White blood cells (WBCs) are essential for monitoring health and diagnosing diseases, but isolating them from blood is challenging due to their low concentration compared to red blood cells (RBCs).
  • Researchers developed a cascaded inertial microfluidic chip that improves WBC separation purity by using two sinusoidal channels and embedded micro-obstacles to control flow rate during processing.
  • The method significantly enhanced WBC purity, achieving a 307-fold increase in WBC concentration from diluted whole blood and a dramatic reduction in RBC presence, making it promising for clinical diagnostics.
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Depletion of β1,6-N-acetylglucosaminyltransferase reduces E-selectin binding capacity and migratory potential of human gastrointestinal adenocarcinoma cells.

Neoplasia

January 2025

Institute of Anatomy and Experimental Morphology, University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, 20241, Hamburg, Germany; Institute of Anatomy I, Jena University Hospital, 07743, Jena, Germany; Comprehensive Cancer Center Central Germany (CCCG). Electronic address:

The commonly altered glycosylation of tumor cells is a hallmark of tumor progression and metastasis formation. One prominent example is the interaction of sialylated glycans at the tumor cell surface with endothelial (E)-selectin as an early event of an adhesion cascade that enables extravasation of circulating tumor cells (CTCs) into distant tissues. In a previous study, we identified GCNT3 (mucin-type core2/ core4 β1,6-N-acetylglucosaminyltransferase) highly over-expressed in gastrointestinal adenocarcinoma cells that facilitate the canonical E-selectin ligands sialyl-Lewis A and X (sLeA/X) for E-selectin binding and endothelial adhesion.

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  • Ross River virus (RRV) and Barmah Forest virus (BFV) are related viruses found in Australia and Papua New Guinea, showing evidence of convergent evolution in their genetic development.
  • Analysis of multiple genomes revealed that specific mutations in key proteins are important for their replication and interaction with host cells, indicating similarities in how both viruses adapt to their environments.
  • Although some mutations appear to have benefited their evolution, the overall selection pressures suggest that RRV and BFV have undergone purifying selection, maintaining stable functions during their replication in different hosts like mosquitoes and vertebrates.
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  • - This study reports the first isolation of a newly identified bacteria species from two patients in France suffering from gastroenteritis, using samples collected in 2020 and 2022.
  • - Both isolates were confirmed to belong to the same species through various methods including biochemical tests, electron microscopy, and genetic analyses, and they exhibited significant cytopathogenic activity in human intestinal cells.
  • - The findings highlight the importance of utilizing next-generation sequencing for accurate species identification. It underscores the need to recognize emerging pathogens like this new species as potential foodborne threats to public health.
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Introduction: Bovine Genital Campylobacteriosis (BGC), caused by subsp. venerealis, is a sexually transmitted bacterium that significantly impacts cattle reproductive performance. However, current detection methods lack consistency and reliability due to the close genetic similarity between subsp.

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Microcrystal electron diffraction structure of Toll-like receptor 2 TIR-domain-nucleated MyD88 TIR-domain higher-order assembly.

Acta Crystallogr D Struct Biol

September 2024

School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia.

Eukaryotic TIR (Toll/interleukin-1 receptor protein) domains signal via TIR-TIR interactions, either by self-association or by interaction with other TIR domains. In mammals, TIR domains are found in Toll-like receptors (TLRs) and cytoplasmic adaptor proteins involved in pro-inflammatory signaling. Previous work revealed that the MAL TIR domain (MAL) nucleates the assembly of MyD88 into crystalline arrays in vitro.

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Uropathogenic Escherichia coli (UPEC) can undergo extensive filamentation in the host during acute urinary tract infections (UTIs). It has been hypothesised that this morphological plasticity allows bacteria to avoid host immune responses such as macrophage engulfment. However, it is still unclear what properties of filaments are important in macrophage-bacteria interactions.

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Article Synopsis
  • The TIR domain is a crucial structural component found in immune signaling proteins across various organisms, from humans to bacteria.* -
  • Research has uncovered essential features of TIR domain signaling, including the formation of filamentous assemblies and specific enzymatic activities that cleave nucleotides.* -
  • A historical overview of the research highlights the importance of various structural techniques, such as X-ray crystallography, microED, NMR, and cryo-EM, in advancing our understanding of TIR domains.*
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Design, synthesis, , and evaluation of pyrrol-2-yl-phenyl allylidene hydrazine carboximidamide derivatives as AChE/BACE 1 dual inhibitors.

RSC Adv

August 2024

Pharmaceutical Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus Vidya Vihar Pilani RJ 333031 India +91-1596-244183 +91-1596-255 506.

Alzheimer's disease (AD) manifests as a progressive decline in cognitive function and mental behavior. Targeting two crucial enzymes associated with AD, acetylcholinesterase (AChE) and BACE 1 (Beta-site APP Cleaving Enzyme), in combination, holds promise for therapeutic breakthroughs. In this study, 40 derivatives of pyrrol-2-yl-phenyl allylidene hydrazine carboximidamide were designed based on prior research.

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Marine natural products (MNPs) continue to be tested primarily in cellular toxicity assays, both mammalian and microbial, despite most being inactive at concentrations relevant to drug discovery. These MNPs become missed opportunities and represent a wasteful use of precious bioresources. The use of cheminformatics aligned with published bioactivity data can provide insights to direct the choice of bioassays for the evaluation of new MNPs.

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WHO global research priorities for sexually transmitted infections.

Lancet Glob Health

September 2024

Department of Sexual and Reproductive Health and Research, WHO, Geneva, Switzerland.

Article Synopsis
  • STIs are a major global health issue that adversely impacts sexual and reproductive health, especially in low-resource settings due to gaps in evidence and tools.
  • In 2022, the WHO launched an initiative to prioritize STI research, identifying 40 key areas, with a focus on developing affordable diagnostic tests, new treatments, and enhanced epidemiologic data.
  • The priorities also emphasize innovative approaches to STI communication and partner management, and include research related to mpox, highlighting the need for STI studies during disease outbreaks linked to sexual transmission.
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The pursuit of increased efficiency of photoelectric energy conversion through optimized semiconductor structures remains highly competitive, with current results yet to align with broad expectations. In this study, we discover a significant enhancement in photocurrent performance of a p-3C-SiC nanothin film on p-Si/n-Si double junction (DJ) heterostructure that integrates p-3C-SiC/p-Si heterojunction and p-Si/n-Si homojunction. The vertical photocurrent (VPC) and vertical photoresponsivity exhibit a substantial enhancement in the DJ heterostructure, surpassing by a maximum of 43-fold compared to the p-3C-SiC/n-Si single junction (SJ) counterpart.

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  • Bacterial lysates contain immunostimulants that can boost both local and systemic immune responses, aiding in the treatment of infectious diseases and potentially cancer.
  • The review discusses various commercially available bacterial lysates, such as OM-85 and OM-89, showing effectiveness in managing respiratory and urinary tract infections with minimal side effects.
  • Additionally, bacterial lysates may enhance innate immunity for cancer treatment, with research suggesting their potential as adjuvants in therapies for different types of cancer, including bladder cancer and sarcomas.
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  • Human norovirus, a major cause of acute gastroenteritis outbreaks, lacks approved vaccines or antivirals, but recent research on norovirus inhibitors like monoclonal antibodies (Mabs) and nanobodies shows promise in blocking virus replication.
  • The study focused on enhancing a cross-reactive nanobody (NB26) by conjugating it with a human IgG Fc domain to create Fc-NB26, which displayed significantly improved binding and neutralization capabilities against various norovirus strains.
  • The findings indicate that structural modifications to nanobodies not only heighten their efficacy but also offer potential pathways for developing broad-spectrum therapeutics against the evolving norovirus landscape.
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  • * Matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) is a key technique for analyzing glycans, but sialic acids are difficult to assess due to their instability.
  • * The study introduces a new method that stabilizes sialic acids in tissue samples for better detection and localization of N-glycans, potentially enhancing our understanding of their role in human diseases.
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Synthetic efforts toward complex natural product (NP) scaffolds are useful ones, particularly those aimed at expanding their bioactive chemical space. Here, we utilised an orthogonal cheminformatics-based approach to predict the potential biological activities for a series of synthetic bis-indole alkaloids inspired by elusive sponge-derived NPs, echinosulfone A () and echinosulfonic acids A-D (-). Our work includes the first synthesis of desulfato-echinosulfonic acid C, an α-hydroxy bis(3'-indolyl) alkaloid (), and its full NMR characterisation.

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Thoeris defense systems protect bacteria from infection by phages via abortive infection. In these systems, ThsB proteins serve as sensors of infection and generate signaling nucleotides that activate ThsA effectors. Silent information regulator and SMF/DprA-LOG (SIR2-SLOG) containing ThsA effectors are activated by cyclic ADP-ribose (ADPR) isomers 2'cADPR and 3'cADPR, triggering abortive infection via nicotinamide adenine dinucleotide (NAD) depletion.

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Neuromodulatory effects of leukotriene receptor antagonists: A comprehensive review.

Eur J Pharmacol

September 2024

School of Pharmacy and Medical Sciences, Griffith University, Queensland, 4222, Australia. Electronic address:

Cysteinyl leukotrienes (CysLTs) are central to the pathophysiology of asthma and various inflammatory disorders. Leukotriene receptor antagonists (LTRAs) effectively treat respiratory conditions by targeting cysteinyl leukotriene receptors, CysLT and CysLT subtypes. This review explores the multifaceted effects of LTs, extending beyond bronchoconstriction.

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While ceftriaxone remains the first-line treatment for gonorrhea, the US Centers for Disease Control and Prevention recommended cefixime as a second-line treatment in 2021. We tested 1176 Neisseria gonorrhoeae isolates among clients attending the Melbourne Sexual Health Centre in 2021 and 2022. The prevalence of cefixime resistance was 6.

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Recent success of AlphaFold2 in protein structure prediction relied heavily on co-evolutionary information derived from homologous protein sequences found in the huge, integrated database of protein sequences (Big Fantastic Database). In contrast, the existing nucleotide databases were not consolidated to facilitate wider and deeper homology search. Here, we built a comprehensive database by incorporating the non-coding RNA (ncRNA) sequences from RNAcentral, the transcriptome assembly and metagenome assembly from metagenomics RAST (MG-RAST), the genomic sequences from Genome Warehouse (GWH), and the genomic sequences from MGnify, in addition to the nucleotide (nt) database and its subsets in National Center of Biotechnology Information (NCBI).

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Dengue virus (DENV) nonstructural protein 5 (NS5), consisting of methyltransferase and RNA-dependent RNA polymerase (RdRp) domains, is critical for viral RNA synthesis within endoplasmic reticulum-derived replication complexes in the cytoplasm. However, a significant proportion of NS5 is localized to the nucleus of infected cells for DENV2, 3, and 4, whereas DENV1 NS5 is localized diffusely in the cytoplasm. We still have an incomplete understanding of how the DENV NS5 subcellular localization is regulated.

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