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The role of glycosphingolipids in HIV signaling, entry and pathogenesis

  1. Author:
    Viard, M.
    Parolini, I.
    Rawat, S. S.
    Fecchi, K.
    Sargiacomo, M.
    Puri, A.
    Blumenthal, R.
  2. Author Address

    Blumenthal, R, NCI Frederick, Lab Expt & Computat Biol, Ctr Canc Res, NIH, Frederick, MD 21701 USA NCI Frederick, Lab Expt & Computat Biol, Ctr Canc Res, NIH, Frederick, MD 21701 USA. Ist Super Sanita, I-00161 Rome, Italy.
    1. Year: 2003
  1. Journal: Glycoconjugate Journal
    1. 20
    2. 3
    3. Pages: 213-222
  2. Type of Article: Article
  1. Abstract:

    Although HIV uses CD4 and coreceptors (CCR5 and CXCR4) for productive infection of T cells, glycosphingolipids (GSL) may play ancillary roles in lymphoid and non-lymphoid cells. Interactions of the HIV Envelope Glycoprotein (Env) with GSL may help HIV in various steps of its pathogenesis. Physical-chemical aspects of the interactions between HIV Env and GSL leading to CD4-dependent entry into lymphocytes, the role of GSL in HIV transcytosis, and CD4-independent entry into non-lymphoid cells are reviewed. An overview of signaling properties of HIV receptors is provided with some speculation on how GSL may play a role in these events by virtue of being in membrane rafts. Finally, we summarize how interactions between HIV and coreceptors leading to signaling and/or fusion can be analyzed by the use of various tyrosine kinase and cytoskeletal inhibitors. Published in 2004

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