SOD1 Plasma Level as a Biomarker for Therapeutic Failure in Cutaneous Leishmaniasis

نویسندگان

  • Ricardo Khouri
  • Gilvaneia Silva Santos
  • George Soares
  • Jackson M. Costa
  • Aldina Barral
  • Manoel Barral-Netto
  • Johan Van Weyenbergh
چکیده

We show that increased plasma superoxide dismutase 1 (SOD1) levels are statistically significant predictors of the failure of pentavalent antimony treatment for cutaneous leishmaniasis caused by Leishmania braziliensis. In Leishmania amazonensis-infected patients, host SOD1 levels can be used to discriminate between localized and drug-resistant diffuse cutaneous leishmaniasis. Using in situ transcriptomics (nCounter), we demonstrate a significant positive correlation between host SOD1 and interferon α/β messenger RNA (mRNA) levels, as well as interkingdom correlation between host SOD1 and parasite SOD2/4 mRNA levels. In human macrophages, in vitro treatment with SOD1 increases the parasite burden and induces a diffuse cutaneous leishmaniasis-like morphology. Thus, SOD1 is a clinically relevant biomarker and a therapeutic target in both localized and diffuse cutaneous leishmaniasis.

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عنوان ژورنال:

دوره 210  شماره 

صفحات  -

تاریخ انتشار 2014