Generation of HIV-1 resistant and functional macrophages from hematopoietic stem cell-derived induced pluripotent stem cells

Mol Ther. 2011 Mar;19(3):584-93. doi: 10.1038/mt.2010.269. Epub 2010 Nov 30.

Abstract

Induced pluripotent stem cells (iPSCs) have radically advanced the field of regenerative medicine by making possible the production of patient-specific pluripotent stem cells from adult individuals. By developing iPSCs to treat HIV, there is the potential for generating a continuous supply of therapeutic cells for transplantation into HIV-infected patients. In this study, we have used human hematopoietic stem cells (HSCs) to generate anti-HIV gene expressing iPSCs for HIV gene therapy. HSCs were dedifferentiated into continuously growing iPSC lines with four reprogramming factors and a combination anti-HIV lentiviral vector containing a CCR5 short hairpin RNA (shRNA) and a human/rhesus chimeric TRIM5α gene. Upon directed differentiation of the anti-HIV iPSCs toward the hematopoietic lineage, a robust quantity of colony-forming CD133(+) HSCs were obtained. These cells were further differentiated into functional end-stage macrophages which displayed a normal phenotypic profile. Upon viral challenge, the anti-HIV iPSC-derived macrophages exhibited strong protection from HIV-1 infection. Here, we demonstrate the ability of iPSCs to develop into HIV-1 resistant immune cells and highlight the potential use of iPSCs for HIV gene and cellular therapies.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • AC133 Antigen
  • Adult
  • Antigens, CD / metabolism
  • Antigens, CD34 / metabolism
  • Cell Differentiation / genetics
  • Cell Differentiation / immunology
  • Cells, Cultured
  • Glycoproteins / metabolism
  • HEK293 Cells
  • HIV Infections / immunology*
  • HIV Infections / virology
  • HIV-1 / immunology*
  • Hematopoietic Stem Cells / cytology*
  • Hematopoietic Stem Cells / immunology*
  • Humans
  • Induced Pluripotent Stem Cells / cytology
  • Induced Pluripotent Stem Cells / metabolism*
  • Macrophages / cytology*
  • Macrophages / immunology*
  • Peptides / metabolism
  • RNA, Small Interfering / genetics
  • RNA, Small Interfering / metabolism
  • Receptors, CCR5 / genetics
  • Receptors, CCR5 / metabolism

Substances

  • AC133 Antigen
  • Antigens, CD
  • Antigens, CD34
  • Glycoproteins
  • PROM1 protein, human
  • Peptides
  • RNA, Small Interfering
  • Receptors, CCR5