ArticleJournal of virology2001
Binding of recombinant feline immunodeficiency virus surface glycoprotein to feline cells: role of CXCR4, cell-surface heparans, and an unidentified non-CXCR4 receptor.
Article in Journal of virology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
54 citing papers in PubMed, 79 citations in OpenAlex.
- HIV and FIV glycoproteins increase cellular tau pathology via cGMP-dependent kinase II activation.Journal of cell science · 2022Article
- HIV induces synaptic hyperexcitation via cGMP-dependent protein kinase II activation in the FIV infection model.PLoS biology · 2018Article
- Applications of the FIV Model to Study HIV Pathogenesis.Viruses · 2018Review
- FIV vaccine with receptor epitopes results in neutralizing antibodies but does not confer resistance to challenge.NPJ vaccines · 2018Article
- Article
- Mutations in the feline immunodeficiency virus envelope glycoprotein confer resistance to a dominant-negative fragment of Tsg101 by enhancing infectivity and cell-to-cell virus transmission.Biochimica et biophysica acta · 2014Article
- Understanding the process of envelope glycoprotein incorporation into virions in simian and feline immunodeficiency viruses.Viruses · 2014Review
- Article
- Domestic cat microsphere immunoassays: detection of antibodies during feline immunodeficiency virus infection.Journal of immunological methods · 2013Article
- Mapping of Receptor Binding Interactions with the FIV surface Glycoprotein (SU); Implications Regarding Immune surveillance and cellular Targets of Infection.Retrovirology : research and treatment · 2012Article
- Review
- Identification of amino acid residues important for heparan sulfate proteoglycan interaction within variable region 3 of the feline immunodeficiency virus surface glycoprotein.Journal of virology · 2011Article
- Partial regulatory T cell depletion prior to acute feline immunodeficiency virus infection does not alter disease pathogenesis.PloS one · 2011Article
- OrfA downregulates feline immunodeficiency virus primary receptor CD134 on the host cell surface and is important in viral infection.Journal of virology · 2010Article
- Syndecan-Fc hybrid molecule as a potent in vitro microbicidal anti-HIV-1 agent.Antimicrobial agents and chemotherapy · 2010Article
- Fine definition of the CXCR4-binding region on the V3 loop of feline immunodeficiency virus surface glycoprotein.PloS one · 2010Article
- Acute mucosal pathogenesis of feline immunodeficiency virus is independent of viral dose in vaginally infected cats.Retrovirology · 2010Article
- Feline immunodeficiency virus (FIV) as a model for study of lentivirus infections: parallels with HIV.Current HIV research · 2010Review
- Improved health and survival of FIV-infected cats is associated with the presence of autoantibodies to the primary receptor, CD134.Proceedings of the National Academy of Sciences of the United States of America · 2009Article
- Borna disease virus requires cholesterol in both cellular membrane and viral envelope for efficient cell entry.Journal of virology · 2009Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
To address the role of CXCR4 in the cell-surface attachment of the feline immunodeficency virus (FIV), a soluble fusion protein, gp95-Fc, consisting of the surface glycoprotein (SU, gp95) of either a primary (PPR) or cell line-adapted (34TF10) FIV strain was fused in frame with the Fc domain of human immunoglobulin G1. The recombinant SU-immunoadhesins were used as probes to investigate the cellular binding of FIV SU. In agreement with the host cell range properties of both viruses, binding of 34TF10 gp95-Fc was observed for all cell lines tested, whereas PPR gp95-Fc bound only to primary feline T cells. 34TF10 gp95-Fc also bound to Jurkat and HeLa cells, consistent with the ability of FIV to use human CXCR4 as a fusion receptor. As expected, 34TF10 gp95-Fc binding to Jurkat cells was blocked by addition of stromal cell-derived factor 1alpha (SDF-1alpha), as was binding to the 3201 feline lymphoma cell line. However, SDF-1alpha, RANTES, macrophage inflammatory protein 1beta, and heparin all failed to inhibit the binding of either gp95-Fc to primary T cells, suggesting that a non-CXCR4 receptor is involved in the binding of FIV SU. In this regard, an unidentified 40-kDa protein species from the surface of primary T cells but not Jurkat and 3201 cells specifically coprecipitated with both gp95-Fc. Yet another type of binding of 34TF10 gp95-Fc to adherent kidney cells was noted. SDF-1alpha failed to block the binding of 34TF10 gp95-Fc to either HeLa, Crandel feline leukemia, or G355-5 cells. However, binding was severely impaired in the presence of soluble heparin, as well as after enzymatic removal of surface heparans or on cells deficient in heparan expression. These overall findings suggest that in addition to CXCR4, a non-CXCR4 receptor and cell-surface heparans also play an important role in FIV gp95 cell surface interactions on specific target cells.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.