Novel Polysulfated Galactose-Derivatized Dendrimers as Binding Antagonists of Human Immunodeficiency Virus Type 1 Infection

Richard D. Kensinger, Bradley J. Catalone, Fred C. Krebs, Brian Wigdahl, Cara Lynne Schengrund

Research output: Contribution to journalArticle

63 Citations (Scopus)

Abstract

Evidence indicates that galactosyl ceramide (GalCer) and its 3'-sulfated derivative, sulfatide (SGalCer), may act as alternate coreceptors for human immunodeficiency virus type 1 (HIV-1) in CD4- cells. Glycosphingolipids (GSLs) may also be necessary for fusion of HIV-1 and host cell membranes. Using an enzyme-linked immunosorbent assay to determine which GSL was the best ligand for both recombinant and virus-associated gp120, we found that SGalCer was the best ligand for each rgp120 and HIV-1 isolate tested. Therefore, novel multivalent glycodendrimers, which mimic the carbohydrate clustering reportedly found in lipid rafts, were synthesized based on the carbohydrate moiety of SGalCer. Here we describe the synthesis of a polysulfated galactose functionalized, fifth generation DAB dendrimer (PS Gal 64mer), containing on average two sulfate groups per galactose residue. Its ability to inhibit HIV-1 infection of cultured indicator cells was compared to that of dextran sulfate (DxS), a known, potent, binding inhibitor of HIV-1. The results indicate that the PS Gal 64mer inhibited infection by the HIV-1 isolates tested as well as DxS.

Original languageEnglish (US)
Pages (from-to)1614-1623
Number of pages10
JournalAntimicrobial agents and chemotherapy
Volume48
Issue number5
DOIs
StatePublished - May 1 2004

Fingerprint

Dendrimers
Galactose
HIV-1
Infection
Glycosphingolipids
Dextran Sulfate
Carbohydrates
Galactosylceramides
Sulfoglycosphingolipids
Ligands
Virus Diseases
Sulfates
Cluster Analysis
Cultured Cells
Enzyme-Linked Immunosorbent Assay
Cell Membrane
Viruses
Lipids

All Science Journal Classification (ASJC) codes

  • Pharmacology
  • Pharmacology (medical)
  • Infectious Diseases

Cite this

Kensinger, Richard D. ; Catalone, Bradley J. ; Krebs, Fred C. ; Wigdahl, Brian ; Schengrund, Cara Lynne. / Novel Polysulfated Galactose-Derivatized Dendrimers as Binding Antagonists of Human Immunodeficiency Virus Type 1 Infection. In: Antimicrobial agents and chemotherapy. 2004 ; Vol. 48, No. 5. pp. 1614-1623.
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Novel Polysulfated Galactose-Derivatized Dendrimers as Binding Antagonists of Human Immunodeficiency Virus Type 1 Infection. / Kensinger, Richard D.; Catalone, Bradley J.; Krebs, Fred C.; Wigdahl, Brian; Schengrund, Cara Lynne.

In: Antimicrobial agents and chemotherapy, Vol. 48, No. 5, 01.05.2004, p. 1614-1623.

Research output: Contribution to journalArticle

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