Evaluation of T cell receptor gene rearrangement excision circles after antiretroviral therapy in children infected with human immunodeficiency virus

Surendra Chavan, Bindu Bennuri, Monica Kharbanda, Alamelu Chandrasekaran, Saroj Bakshi, Savita Pahwa

Research output: Contribution to journalArticle

49 Scopus citations

Abstract

Immune reconstitution after antiretroviral therapy in human immunodeficiency virus (HIV) - infected patients may result from the recovery of thymus function, peripheral redistribution, or decreased T cell destruction. This study investigated levels of T cell receptor gene rearrangement excision circles (TRECs) as a measure of recent thymic emigrant cells in peripheral blood lymphocytes of 50 HIV-infected infants and children who were followed-up for 40 months after the start or change of antiretroviral therapy. At baseline, patients exhibited fewer TRECs than did uninfected control subjects. The increase in TRECs after antiretroviral therapy was greater in infants than in older HIV-infected children. Of interest, patients who demonstrated discordant responses (i.e., increased CD4 T cell counts without significant virologic suppression) also had substantial gains in TRECs. Furthermore, TRECs correlated positively with the number of CD4 and naive T cells and negatively with age and virus load. Measurement of TRECs may serve as a useful tool for evaluating immune reconstitution in HIV-infected children receiving antiretroviral therapy.

Original languageEnglish (US)
Pages (from-to)1445-1454
Number of pages10
JournalJournal of Infectious Diseases
Volume183
Issue number10
DOIs
StatePublished - May 15 2001

ASJC Scopus subject areas

  • Immunology and Allergy
  • Infectious Diseases

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