Abstract
Leishmaniasis is a cause of infection associated with hemophagocytic lymphohistiocytosis (HLH). The measurement of the CD8+ CD38high/HLA-DR+ T cells in children presenting with acute onset of shock and multisystem organ failure represents an important parameter to distinguish HLH from sepsis or healthy control.
Conclusion: We report a case series of 4 Italian children suffering from HLH secondary to visceral Leishmaniasis in which the lymphocyte subset assay suggests a potential role of CD38high/HLA-DR+ CD8+ T cells as HLH diagnostic biomarkers.
What is Known: • Visceral Leishmaniasis is a well-known cause of infection associated with hemophagocytic lymphohistiocytosis (HLH). • The measurement of the CD8+ CD38high/HLA-DR+ T cells in children presenting with acute onset of shock and multisystem organ failure represents an important diagnostically useful parameter to readily distinguish HLH from sepsis or healthy controls. | |
What is New: • We report a case series of 4 Italian children suffering from HLH secondary to visceral Leishmaniasis in which the lymphocyte subset assay suggests a potential role of CD38high/HLA-DR+ CD8+ T cells as HLH diagnostic biomarker. • The flow cytometry assay, performed at the disease onset before starting treatment, revealed a mean percentage value of CD38 cells of 36.95% among CD8+ T cells. |
Data availability
The dataset analysed during the current study is available from the corresponding author on reasonable request.
Abbreviations
- CD:
-
Cluster of differentiation
- HLA:
-
Human leukocyte antigen
- HLH:
-
Hemophagocytic lymphohistiocytosis
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MVM, SB, and LP: data curation, formal analysis, investigation, and writing—original draft. MVM: conceptualization, methodology, project administration, supervision, and writing. EM, IP, IM, SR, and LL: investigation and validation. GS, CA, and LG: conceptualization, methodology, and supervision. All the authors reviewed the manuscript.
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Communicated by Tobias Tenenbaum.
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Mastrolia, M.V., Boscia, S., Galli, L. et al. CD38high/HLA-DR+ CD8+ T cells as potential biomarker of hemophagocytic lymphohistiocytosis secondary to visceral Leishmania infection. Eur J Pediatr 182, 1429–1432 (2023). https://doi.org/10.1007/s00431-022-04789-x
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DOI: https://doi.org/10.1007/s00431-022-04789-x