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<p>HIV-associated neurocognitive disorder (HAND) persists in people living with HIV (PLWH) despite antiretroviral therapy. HAND is characterized by synapto-dendritic damage, yet the cause of this pathology is still under investigation. Various viral proteins, including the envelope protein gp120, have been proposed to be the leading neurotoxic agents underlying HIV-mediated neuronal degeneration. Gp120 has been shown to bind to neuronal microtubules (MTs) and impair their functions. The dynamic properties of MTs are modulated by microtubule-associated proteins (MAP), including MAP2, which is particularly abundant in dendrites. This review article explores how gp120 could be altering the function of the neuronal cytoskeleton by affecting MAP2. These effects may serve as a causal link between viral proteins and HAND pathology.</p>

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Exploring the potential role of microtubule associated proteins-2 in the pathogenesis of HIV associated neurocognitive disorders

  • 期刊论文

  • 发表日期：

    2025年4月3日

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  • Melanie K. Becher,
  • Valeria Avdoshina,
  • Lee A Campbell,
  • Italo Mocchetti

摘要

HIV-associated neurocognitive disorder (HAND) persists in people living with HIV (PLWH) despite antiretroviral therapy. HAND is characterized by synapto-dendritic damage, yet the cause of this pathology is still under investigation. Various viral proteins, including the envelope protein gp120, have been proposed to be the leading neurotoxic agents underlying HIV-mediated neuronal degeneration. Gp120 has been shown to bind to neuronal microtubules (MTs) and impair their functions. The dynamic properties of MTs are modulated by microtubule-associated proteins (MAP), including MAP2, which is particularly abundant in dendrites. This review article explores how gp120 could be altering the function of the neuronal cytoskeleton by affecting MAP2. These effects may serve as a causal link between viral proteins and HAND pathology.