A series of carbosilane dendrimers uniformly functionalized with sialyl lactose moieties (Neu5Ac alpha2-->3Gal beta1-->4Glc) was systematically synthesized, and biological evaluations for anti-influenza virus activity using the glycodendrimers were performed. The results suggested that the glycodendrimers had unique biological activities depending on the form of their core frame, and Dumbbell(1)6-amide type glycodendrimer 7 showed particularly strong inhibitory activities against human influenza viruses [A/PR/8/34 (H1N1) and A/Aichi/2/68 (H3N2)]. The results suggested that the structure-activity relationship (SAR) on the glycolibrary against various influenza viruses was observed, and dumbbell-shaped dendrimers as supporting carbohydrate moieties were found to be the most suitable core scaffolds in this study.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.bmc.2009.06.035 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
GGCX promotes Eurasian avian-like H1N1 swine influenza virus adaption to interspecies receptor binding.
Nat Commun
January 2025
National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China.
The Eurasian avian-like (EA) H1N1 swine influenza virus (SIV) possesses the capacity to instigate the next influenza pandemic, owing to its heightened affinity for the human-type α-2,6 sialic acid (SA) receptor. Nevertheless, the molecular mechanisms underlying the switch in receptor binding preferences of EA H1N1 SIV remain elusive. In this study, we conduct a comprehensive genome-wide CRISPR/Cas9 knockout screen utilizing EA H1N1 SIV in porcine kidney cells.
View Article and Find Full Text PDFClade 2.3.4.4b but not historical clade 1 HA replicating RNA vaccine protects against bovine H5N1 challenge in mice.
Nat Commun
January 2025
Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA.
The ongoing circulation of influenza A H5N1 in the United States has raised concerns of a pandemic caused by highly pathogenic avian influenza. Although the United States has stockpiled and is prepared to produce millions of vaccine doses to address an H5N1 pandemic, currently circulating H5N1 viruses contain multiple mutations within the immunodominant head domain of hemagglutinin (HA) compared to the antigens used in stockpiled vaccines. It is unclear if these stockpiled vaccines will need to be updated to match the contemporary H5N1 strains.
View Article and Find Full Text PDFImproving influenza forecast in the tropics and subtropics: a case study of Hong Kong.
J R Soc Interface
January 2025
Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA.
Influenza forecasts could aid public health response as shown for temperate regions, but such efforts are more challenging in the tropics and subtropics due to more irregular influenza activities. Here, we built six forecast approaches for influenza in the (sub)tropics, with six model forms designed to model seasonal infection risk (i.e.
View Article and Find Full Text PDF[Vaccination and cardiovascular diseases].
Herz
January 2025
Klinik für Kardiologie, Angiologie und internistische Intensivmedizin, Universitätsklinikum des Saarlandes, Kirrberger Str. 1, 66421, Homburg/Saar, Deutschland.
Respiratory tract infections with influenza, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and respiratory syncytial (RS) viruses and pneumococci as well as endogenous reactivation of varicella zoster viruses presenting as herpes zoster, are associated with adverse cardiovascular outcomes, such as myocardial infarction or hospitalization for heart failure. Effective prevention of these events, particularly through influenza and pneumococcal vaccination, is well established and cost-effective. Despite guideline recommendations to vaccinate older patients and people at risk, vaccination rates in these population groups remain suboptimal and below average in international comparison.
View Article and Find Full Text PDFSpatiotemporal Dynamic Immunomodulation by Infection-Mimicking Gels Enhances Broad and Durable Protective Immunity Against Heterologous Viruses.
Adv Sci (Weinh)
January 2025
SKKU Advanced Institute of Nanotechnology (SAINT), Department of Nano Engineering, Department of Nano Science and Technology, School of Chemical Engineering, Biomedical Institute for Convergence at SKKU, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea.
Despite their safety and widespread use, conventional protein antigen-based subunit vaccines face significant challenges such as low immunogenicity, insufficient long-term immunity, poor CD8 T-cell activation, and poor adaptation to viral variants. To address these issues, an infection-mimicking gel (IM-Gel) is developed that is designed to emulate the spatiotemporal dynamics of immune stimulation in acute viral infections through in situ supramolecular self-assembly of nanoparticulate-TLR7/8a (NP-TLR7/8a) and an antigen with tannic acid (TA). Through collagen-binding properties of TA, the IM-Gel enables sustained delivery and enhanced retention of NP-TLR7/8a and protein antigen in the lymph node subcapsular sinus of mice for over 7 days, prolonging the exposure of vaccine components in both B cell and T cell zones, leading to robust humoral and cellular responses.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!