Interleukin-2 Increases CD4+ lymphocyte numbers but does not enhance responses to immunization: results of A5046s

J Infect Dis. 2003 Jan 15;187(2):320-5. doi: 10.1086/346056. Epub 2003 Jan 6.

Abstract

To ascertain whether CD4(+) lymphocyte increases induced by interleukin (IL)-2 enhanced in vivo immune responses, 38 human immunodeficiency virus (HIV)-infected patients who had received highly active antiretroviral therapy (HAART) or HAART and IL-2 for at least 60 weeks were immunized with tetanus toxoid, inactivated glycoprotein 120-depleted HIV-1, and hepatitis A and B vaccines. Despite dramatic increases in CD4(+) lymphocyte counts, IL-2 did not enhance immunization responses.

Publication types

  • Clinical Trial
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • AIDS Vaccines / immunology
  • Adjuvants, Immunologic / pharmacology
  • Adult
  • Anti-HIV Agents / therapeutic use
  • Antiretroviral Therapy, Highly Active
  • CD4 Lymphocyte Count
  • CD4-Positive T-Lymphocytes / cytology*
  • CD4-Positive T-Lymphocytes / drug effects*
  • CD4-Positive T-Lymphocytes / immunology
  • Drug Therapy, Combination
  • HIV Infections / drug therapy
  • HIV Infections / immunology*
  • Hepatitis A Vaccines / immunology
  • Hepatitis B Vaccines / immunology
  • Humans
  • Interleukin-2 / pharmacology*
  • Lymphocyte Activation / drug effects*
  • Male
  • Tetanus Toxoid / immunology

Substances

  • AIDS Vaccines
  • Adjuvants, Immunologic
  • Anti-HIV Agents
  • Hepatitis A Vaccines
  • Hepatitis B Vaccines
  • Interleukin-2
  • Tetanus Toxoid