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Circulating Heat Shock Protein 60 Levels Are Elevated in HIV Patients and Are Reduced by Anti-Retroviral Therapy

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  • Itaru Anraku
  • Reena Rajasuriar
  • Caroline Dobbin
  • Richard Brown
  • Sharon R Lewin
  • Andreas Suhrbier

Abstract

Circulating heat shock protein 60 (Hsp60) and heat shock protein 10 (Hsp10) have been associated with pro- and anti-inflammatory activity, respectively. To determine whether these heat shock proteins might be associated with the immune activation seen in HIV-infected patients, the plasma levels of Hsp60 and Hsp10 were determined in a cohort of 20 HIV-infected patients before and after effective combination anti-retroviral therapy (cART). We show for the first time that circulating Hsp60 levels are elevated in HIV-infected patients, with levels significantly reduced after cART, but still higher than those in HIV-negative individuals. Hsp60 levels correlated significantly with viral load, CD4 counts, and circulating soluble CD14 and lipopolysaccharide levels. No differences or correlations were seen for Hsp10 levels. Elevated circulating Hsp60 may contribute to the immune dysfunction and non-AIDS clinical events seen in HIV-infected patients.

Suggested Citation

  • Itaru Anraku & Reena Rajasuriar & Caroline Dobbin & Richard Brown & Sharon R Lewin & Andreas Suhrbier, 2012. "Circulating Heat Shock Protein 60 Levels Are Elevated in HIV Patients and Are Reduced by Anti-Retroviral Therapy," PLOS ONE, Public Library of Science, vol. 7(9), pages 1-4, September.
    • Handle: RePEc:plo:pone00:0045291
    DOI: 10.1371/journal.pone.0045291
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