Nanoparticle based galectin-1 gene silencing, implications in methamphetamine regulation of HIV-1 infection in monocyte derived macrophages

Jessica L. Reynolds, Wing Cheung Law, Supriya D. Mahajan, Ravikumar Aalinkeel, Bindukumar Nair, Donald E. Sykes, Ken Tye Yong, Rui Hui, Paras N. Prasad, Stanley A. Schwartz

Research output: Journal article publicationJournal articleAcademic researchpeer-review

29 Citations (Scopus)


Galectin-1, an adhesion molecule, is expressed in macrophages and implicated in human immunodeficiency virus (HIV-1) viral adsorption. In this study, we investigated the effects of methamphetamine on galectin-1 production in human monocyte derived macrophages (MDM) and the role of galectin-1 in methamphetamine potentiation of HIV-1 infection. Herein we show that levels of galectin-1 gene and protein expression are significantly increased by methamphetamine. Furthermore, concomitant incubation of MDM with galectin-1 and methamphetamine facilitates HIV-1 infection compared to galectin-1 alone or methamphetamine alone. We utilized a nanotechnology approach that uses gold nanorod (GNR)-galectin-1 siRNA complexes (nanoplexes) to inhibit gene expression for galectin-1. Nanoplexes significantly silenced gene expression for galectin-1 and reversed the effects of methamphetamine on galectin-1 gene expression. Moreover, the effects of methamphetamine on HIV-1 infection were attenuated in the presence of the nanoplex in MDM.
Original languageEnglish
Pages (from-to)673-685
Number of pages13
JournalJournal of NeuroImmune Pharmacology
Issue number3
Publication statusPublished - 1 Sep 2012
Externally publishedYes


  • Galectin-1
  • Goldnanorod
  • HIV-1
  • Macrophage
  • SiRNA

ASJC Scopus subject areas

  • Neuroscience (miscellaneous)
  • Immunology and Allergy
  • Immunology
  • Pharmacology

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