Modest but reproducible inhibition of human immunodeficiency virus type 1 infection in macrophages following LEDGFp75 silencing

Steven P. Zielske, Mario Stevenson

Research output: Contribution to journalArticle

34 Scopus citations


LEDGFp75 is a cellular protein which binds human immunodeficiency virus type 1 (HIV-1) integrase with high specificity and affinity but whose function in infection has not been defined. We infected LEDGFp75-deficient primary macrophages with wild-type HIV in order to assess potential infection phenotypes which would provide clues to LEDGFp75 function. Silencing of LEDGFp75 by 70 to 80% resulted in an average of 53% reduced infection of macrophages by HIV. Analysis of infection intermediates showed that integration, but not two-long-terminal-repeat (2LTR) circles or late cDNAs, was reduced up to 74% in LEDGFp75-deficient macrophages. Therefore, LEDGFp75 has a modest involvement in HIV-1 integration in macrophages.

Original languageEnglish (US)
Pages (from-to)7275-7280
Number of pages6
JournalJournal of virology
Issue number14
StatePublished - Jul 1 2006


ASJC Scopus subject areas

  • Microbiology
  • Immunology
  • Insect Science
  • Virology

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