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Estimating the economic consequences of leveraging the novel cobas® HIV-1/HIV-2 Qualitative NAT Test in routine HIV testing.
Clin Infect Dis
January 2025
IQVIA Inc., Falls Church, VA.
Article Synopsis
- The study compared the costs of the current CDC 3-step HIV testing algorithm with a new single-test alternative (cobas) for efficiency in diagnosing HIV.
- A decision-tree model estimated costs and testing needs for 1 million people, revealing significant reductions in total tests and retests required when using the alternative method.
- Findings indicate that the new algorithm could simplify HIV testing processes, cut overall testing numbers, and keep healthcare costs stable, thereby improving patient outcomes.
Structural insights into HIV-2 CA lattice formation and FG-pocket binding revealed by single-particle cryo-EM.
Cell Rep
January 2025
Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, USA. Electronic address:
One of the striking features of human immunodeficiency virus (HIV) is the capsid, a fullerene cone comprised of pleomorphic capsid protein (CA) that shields the viral genome and recruits cofactors. Despite significant advances in understanding the mechanisms of HIV-1 CA assembly and host factor interactions, HIV-2 CA assembly remains poorly understood. By templating the assembly of HIV-2 CA on functionalized liposomes, we report high-resolution structures of the HIV-2 CA lattice, including both CA hexamers and pentamers, alone and with peptides of host phenylalanine-glycine (FG)-motif proteins Nup153 and CPSF6.
View Article and Find Full Text PDFEquine Infectious Anemia Virus Cellular Partners Along the Viral Cycle.
Viruses
December 2024
ANSES Animal Health Laboratory, PhEED Unit, 14430 Goustranville, France.
Equine infectious anemia virus (EIAV) is the simplest described within the family, related to the human immunodeficiency viruses (HIV-1 and HIV-2). There is an important interplay between host cells and viruses. Viruses need to hijack cellular proteins for their viral cycle completion and some cellular proteins are antiviral agents interfering with viral replication.
View Article and Find Full Text PDFInterplay between the cyclophilin homology domain of RANBP2 and MX2 regulates HIV-1 capsid dependencies on nucleoporins.
mBio
January 2025
Department of Pediatrics, Division of Infectious Diseases, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.
Unlabelled: Interlinked interactions between the viral capsid (CA), nucleoporins (Nups), and the antiviral protein myxovirus resistance 2 (MX2/MXB) influence human immunodeficiency virus 1 (HIV-1) nuclear entry and the outcome of infection. Although RANBP2/NUP358 has been repeatedly identified as a critical player in HIV-1 nuclear import and MX2 activity, the mechanism by which RANBP2 facilitates HIV-1 infection is not well understood. To explore the interactions between MX2, the viral CA, and RANBP2, we utilized CRISPR-Cas9 to generate cell lines expressing RANBP2 from its endogenous locus but lacking the C-terminal cyclophilin (Cyp) homology domain and found that both HIV-1 and HIV-2 infections were reduced significantly in RANBP2 cells.
View Article and Find Full Text PDFRecent Advances in Design, Synthesis, and Biological Activity Studies of 1,3-Selenazoles.
Biomolecules
December 2024
A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Str., Irkutsk 664033, Russia.
The review examines recent advances in the design and synthesis of 1,3-selenazole derivatives since 2000. Various synthetic approaches to 1,3-selenazoles and reaction conditions are discussed. The beneficial properties of 1,3-selenazoles, especially their biological activity, are emphasized.
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