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RANTES, MDC and SDF-1alpha, prevent the HIVgp120-induced food and water intake decrease in rats.

Khalil Guzmán1, Marcela Guevara-Martínez, Corinne J Montes-Rodríguez

  • 1Grupo de Neurociencias, Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autonoma de Mexico (UNAM), Apartado Postal 70-250, México, D.F., C.P. 04510, México.

Neuroscience Letters
|December 14, 2005
PubMed
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Human immunodeficiency virus (HIV) gp120 contributes to HIV-wasting syndrome by reducing food intake and motor control in rats. Chemokines like RANTES, SDF-1alpha, and MDC can prevent these effects, suggesting a role in managing HIV complications.

Area of Science:

  • Neuroscience
  • Immunology
  • Virology

Background:

  • Human immunodeficiency virus (HIV)-wasting syndrome is a complex condition potentially influenced by HIV gp120.
  • The role of specific immune mediators, such as chemokines, in HIV pathogenesis is an area of ongoing research.

Purpose of the Study:

  • To investigate the effects of HIV gp120 and specific chemokines (RANTES, SDF-1alpha, MDC) on physiological and behavioral outcomes in a rat model.
  • To explore the potential of these chemokines in mitigating HIV gp120-induced symptoms.

Main Methods:

  • Subchronic intracerebroventricular administration of HIV gp120, RANTES, SDF-1alpha, MDC, or their combinations to adult male Wistar rats.
  • Monitoring of food and water intake, body weight, motor control, and pain perception throughout the study.

Related Experiment Videos

  • Analysis of the protective effects of chemokines against HIV gp120-induced changes.

    • Main Results:

    • HIV gp120 administration significantly reduced food and water intake, leading to decreased weight gain and impaired motor control.
    • Chemokines (RANTES, SDF-1alpha, MDC) alone or in combination with HIV gp120 prevented the decrease in food/water intake and weight loss.
    • While chemokines protected against some HIV gp120 effects, combinations of HIV gp120 with RANTES or SDF-1alpha, and SDF-1alpha alone, induced hyperalgesia.

    Conclusions:

    • Results suggest a significant interaction between HIV gp120 and the chemokine system in the development of HIV-wasting syndrome.
    • Chemokines demonstrate a potential to counteract some detrimental effects of HIV gp120 on appetite and motor function.
    • The study highlights the complex role of chemokines in modulating pain perception and other physiological responses in the context of HIV infection.