The effect of interrupted anti-retroviral treatment on the reconstitution of memory and naive T cells during tuberculosis treatment in HIV patients with active pulmonary tuberculosis

Sophie Nalukwago, Christina Lancioni, Joy Baseke Oketcho, Dave H. e Canaday, W. Henry Boom, Lonzy Ojok, Harriet Mayanja-Kizza

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Background: The reconstitution of cellular immune components contributes to clinical outcome of HIV and Mycobacterium tuberculosis (MTB) infection. Interruption of anti-retroviral therapy (ART) could lead to perturbations in reconstitution of T cells in HIV/ tuberculosis (TB) patients. Objectives: To ascertain the effect of interrupted ART on reconstitution of CD4+ and CD8+ T sub-sets in TB patients. Methods: Participants with HIV (CD4>350 cells/µL) and TB were recruited under a larger phase 3 open label randomised controlled clinical trial. The CD45RO and CD62L markers were measured on CD4+ and CD8+ cells by flow cytometry. Samples were analysed at baseline, 3, 6, 12 months. Results: There was a significant increase of naive CD8+ cells (p = 0.003) and a decrease in effector CD8+ cells (p = 0.004) among participants in ART/TB treatment arm during the first 6 months. Withdrawing ART led to naive CD8+ cells reduction (p=0.02) to values close to baseline. An increase of naive CD8+ cells after 6 months of TB treatment in TB alone treatment arm (p=0.01) was observed. A trend towards increment of naive CD4+ sub sets in either treatment arms was observed. Conclusion: Interrupting ART alters CD8+ but not CD4+ sub-sets in patients with less advanced HIV infection and TB.

Original languageEnglish (US)
Pages (from-to)954-962
Number of pages9
JournalAfrican Health Sciences
Volume17
Issue number4
DOIs
StatePublished - Jan 1 2017

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Pulmonary Tuberculosis
Tuberculosis
HIV
T-Lymphocytes
Therapeutics
Mycobacterium Infections
Mycobacterium tuberculosis
HIV Infections
Flow Cytometry
Randomized Controlled Trials

Keywords

  • Active pulmonary tuberculosis
  • HIV patients
  • Interrupted anti-retroviral treatment
  • Memory and naive T cells

ASJC Scopus subject areas

  • Medicine(all)

Cite this

The effect of interrupted anti-retroviral treatment on the reconstitution of memory and naive T cells during tuberculosis treatment in HIV patients with active pulmonary tuberculosis. / Nalukwago, Sophie; Lancioni, Christina; Oketcho, Joy Baseke; e Canaday, Dave H.; Boom, W. Henry; Ojok, Lonzy; Mayanja-Kizza, Harriet.

In: African Health Sciences, Vol. 17, No. 4, 01.01.2017, p. 954-962.

Research output: Contribution to journalArticle

Nalukwago, Sophie ; Lancioni, Christina ; Oketcho, Joy Baseke ; e Canaday, Dave H. ; Boom, W. Henry ; Ojok, Lonzy ; Mayanja-Kizza, Harriet. / The effect of interrupted anti-retroviral treatment on the reconstitution of memory and naive T cells during tuberculosis treatment in HIV patients with active pulmonary tuberculosis. In: African Health Sciences. 2017 ; Vol. 17, No. 4. pp. 954-962.
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AU - Mayanja-Kizza, Harriet

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AB - Background: The reconstitution of cellular immune components contributes to clinical outcome of HIV and Mycobacterium tuberculosis (MTB) infection. Interruption of anti-retroviral therapy (ART) could lead to perturbations in reconstitution of T cells in HIV/ tuberculosis (TB) patients. Objectives: To ascertain the effect of interrupted ART on reconstitution of CD4+ and CD8+ T sub-sets in TB patients. Methods: Participants with HIV (CD4>350 cells/µL) and TB were recruited under a larger phase 3 open label randomised controlled clinical trial. The CD45RO and CD62L markers were measured on CD4+ and CD8+ cells by flow cytometry. Samples were analysed at baseline, 3, 6, 12 months. Results: There was a significant increase of naive CD8+ cells (p = 0.003) and a decrease in effector CD8+ cells (p = 0.004) among participants in ART/TB treatment arm during the first 6 months. Withdrawing ART led to naive CD8+ cells reduction (p=0.02) to values close to baseline. An increase of naive CD8+ cells after 6 months of TB treatment in TB alone treatment arm (p=0.01) was observed. A trend towards increment of naive CD4+ sub sets in either treatment arms was observed. Conclusion: Interrupting ART alters CD8+ but not CD4+ sub-sets in patients with less advanced HIV infection and TB.

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