Neuroimmune cross talk and HIV-associated neurocognitive disorders

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Human immunodeficiency virus (HIV) infection is a global and devastating epidemic effecting the health, well-being, and social fabric of many of the world's populations. UNAIDS estimates that 34 million people are infected with HIV with 2.7 million new infections yearly. The majority of infections are in sub-Saharan Africa (http://www.who.int/hiv/data/en/). Viral infection is persistent despite vigorous host immune responses [1-6]. HIV enters its CD4+ T lymphocyte, and mononuclear phagocyte (MP; dendritic cells, monocytes, macrophages, and microglial cells) targets through cell surface interaction of its envelope protein, gp120, with its CD4 and chemokine receptor/co-receptors, CCR5 and CXCR4 [7-11]. Following cell entry, HIV RNA is reverse transcribed and integrated into the host cell's genome. Transcription of viral genes is controlled by interactions between HIV-1 regulatory proteins and host cell transcription factors such as nuclear factor kappa beta (NF-κB) [12-15]. Viral assembly proceeds at the cell surface or in subcellular organelles and the viral RNA encapsulated by interactions with Gag, GagPol, and envelope proteins, with subsequent viral budding and release of mature virions [16-23]. Ongoing HIV infection results in profound CD4+ T cell losses with consequent immune impairments resulting in a range of opportunistic infections, metabolic disorders, and malignancies [3, 5, 24-26]. Less appreciated are primary manifestations of viral replication that include its effects on the central nervous system (CNS) [27-29]. Indeed, although HIV primarily affects immune function and integrity [3, 24-26], virus-associated effects on the nervous system are a significant cause of comorbidity during the course of disease [27, 29, 30]. Prior to the introduction of combination antiretroviral therapy (cART), opportunistic infections (OIs) and advanced cognitive, motor, and behavioral abnormalities commonly occurred as HIV disease advanced and was associated with virus-induced progressive immunosuppression. While cART has reduced the prevalence of OIs along with severity of virus-induced nervous system disorders, both remain active albeit less severe [27].

Original languageEnglish (US)
Title of host publicationNeural-Immune Interactions in Brain Function and Alcohol Related Disorders
PublisherSpringer US
Pages211-248
Number of pages38
ISBN (Electronic)9781461447290
ISBN (Print)1461447283, 9781461447283
DOIs
StatePublished - Oct 1 2013

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HIV
Virus Diseases
Opportunistic Infections
CCR5 Receptors
CXCR4 Receptors
Viruses
T-Lymphocytes
Satellite Viruses
Virus Assembly
CD4 Antigens
Proteins
Viral Genes
Africa South of the Sahara
Chemokine Receptors
Viral RNA
Phagocytes
Infection
Neurocognitive Disorders
Nervous System Diseases
Cell Communication

ASJC Scopus subject areas

  • Medicine(all)
  • Neuroscience(all)

Cite this

McMillan, J. M., & Gendelman, H. E. (2013). Neuroimmune cross talk and HIV-associated neurocognitive disorders. In Neural-Immune Interactions in Brain Function and Alcohol Related Disorders (pp. 211-248). Springer US. https://doi.org/10.1007/978-1-4614-4729-0_7

Neuroimmune cross talk and HIV-associated neurocognitive disorders. / McMillan, JoEllyn M; Gendelman, Howard Eliot.

Neural-Immune Interactions in Brain Function and Alcohol Related Disorders. Springer US, 2013. p. 211-248.

Research output: Chapter in Book/Report/Conference proceedingChapter

McMillan, JM & Gendelman, HE 2013, Neuroimmune cross talk and HIV-associated neurocognitive disorders. in Neural-Immune Interactions in Brain Function and Alcohol Related Disorders. Springer US, pp. 211-248. https://doi.org/10.1007/978-1-4614-4729-0_7
McMillan JM, Gendelman HE. Neuroimmune cross talk and HIV-associated neurocognitive disorders. In Neural-Immune Interactions in Brain Function and Alcohol Related Disorders. Springer US. 2013. p. 211-248 https://doi.org/10.1007/978-1-4614-4729-0_7
McMillan, JoEllyn M ; Gendelman, Howard Eliot. / Neuroimmune cross talk and HIV-associated neurocognitive disorders. Neural-Immune Interactions in Brain Function and Alcohol Related Disorders. Springer US, 2013. pp. 211-248
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