Table 1.
Gene profiling studies in HIV-1-infected astrocytes and HIV-1- or SIV-infected brains discussed in this review
Citation | Cells | Microarray | Virus stimulus |
Analysis | Genes regulated/ total |
Conclusions |
---|---|---|---|---|---|---|
Astrocytes | ||||||
Galey et al. 2003 | Primary human astrocytes |
NIA immuno and neuroarray |
HIV- gp120 |
HIV or gp120 vs non-HIV |
295/ 2,306 |
Differential effect of HIV-1 and gp120 in astrocytes. Gp120 has more profound effect but chemokine and cytokine induction occurs predomi- nantly by HIV infection |
Kim et al. 2004 | Primary human astrocytes |
Affymetrix U133 A/B |
VSV- HIV |
VSV-HIV vs non- VSV-HIV |
734/ >44,000 |
Up-regulation of IFN antiviral responses, intercellular contacts, cell adhesion, and signaling. Down-regulation of cell cycle, DNA replication, and cell proliferation |
Kramer-Hämmerle et al. 2005 | Astrocytoma— Nef expressing cells |
BD Bioscience Clontech |
Nef | Native Nef vs non- myristoylated Nef |
400/ 11,835 |
Up-regulation of small GTPase signaling, regulation of apoptosis, lipid metabolism. JAK/STAT and MAPK signaling pathways |
Borjabad and Volsky 2009 (present work) |
Primary mouse astrocytes |
Affymetrix U74v2 | HIV | HIV vs non-HIV |
211/ 36,000 |
Up-regulation of immune response, inflammation, signal transduction, and chemotaxis. Down-regulation of signal transduction, development, and protein modification processes |
Brain tissue | ||||||
Sui et al. 2003 | Macaque—basal ganglia |
Clontech chemokine and cytokine array |
SHIV | SIVE vs non-SIVE |
50/277 | Changes in cytokine and its receptors expression during SHIV-encephalitis. Up-regulated genes participating in promoting monocyte infiltration, macrophage activation, and enhancement of virus replication. Down- regulation of neutrophic factors |
Roberts et al. 2003 | Macaque— frontal lobe |
Affymetrix U95Av2 | SIV | SIVE vs ni | 98/ 12,625 |
Up-regulation in SIVE of genes implicated in monocyte entry to the brain, inflammation, IFN response, antigen presentation, production of neurotoxic effects, transcription factors, and others |
Roberts et al. 2004 | Macaque— frontal lobe |
Affymetrix U95Av2 | SIV | SIV vs ni | 97/ 12,625 |
Up-regulation in acute SIV infection of genes involved in IFN and IL-6 pathways. Many of these genes also up-regulated in long-term infection and SIVE |
Stephens et al. 2006 | Macaque— cortical brain |
Clontech Cytokine array |
SHIV | SHIV vs ni | 8 | Up-regulated genes, including Cripto-1 and genes implicated in inflammatory, neuroprotective, cognitive, and stress responses |
Masliah et al. 2004 | Human—frontal cortex |
Affymetrix U95Av2 | HIV | HIVE vs non-HIVE |
133/ 12,625 |
Up-regulated pathways included neuroimmune and antiviral response, transcription, and signaling pathways. Down-regulated pathways included synaptic plasticity and transmission, cell cycle, signaling molecules, transcription factors, and cytoskeletal components |