Antagonistas de CCR5 en la infección por virus de inmunodeficiencia humana (VIH): aspectos generales y tropismo viral

Autores/as

  • Pablo Ferrer C. Hospital Clínico Universidad de Chile. Departamento de Medicina. Sección Inmunología, VIH y Alergología. Laboratorio Medicina Molecular
  • Consuelo Rodríguez M. Universidad de Chile
  • Rocío Tordecilla F. Universidad de Chile
  • María A. Guzmán M. Hospital Clínico Universidad de Chile. Departamento de Medicina. Sección Inmunología, VIH y Alergología
  • Alejandro Afani S. Hospital Clínico Universidad de Chile. Departamento de Medicina. Sección Inmunología, VIH y Alergología

Resumen

The human immunodeficiency virus (HIV) is highly mutagenic and generates resistance to the available anti-HIV drug therapies. Because of this a new family of anti-HIV drugs therapies has been created. These new drugs have different mechanisms of action. The HIV entry inhibitors act through specifics correceptors CCR5/CXCR4 localized on CD4 + cells. The HIV tropism determination (phenotypic and genotypic assays) arises to guide therapeutic decisions and define to which patients this treatment will be successful. Genotypic assays are technically advantageous and represent a more feasible alternative to phenotypic assays. The genotypic tropism assay from proviral DNA would have a greater impact, because of its ability to detect tropism in those patients with low or undetectable viral load.

Palabras clave:

VIH, Receptores de Quimiocina