کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7648097 1495052 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Perturbations biologiques et immunologiques au cours des syndromes hémophagocytaires
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Perturbations biologiques et immunologiques au cours des syndromes hémophagocytaires
چکیده انگلیسی
Hemophagocytic lymphohistiocytosis (HLH) is the consequence of immune system hyperactivation, responsible for an hyperinflammatory state potentially fatal. Lymphocytes and histiocytes hyperactivation is characterised by a pro-inflammatory cytokine storm : massive secretion of IL-1, IL-6, TNF-α, IFN-γ by activated lymphocytes and macrophages. Cytokine hypersecretion is responsible for clinical and biological signs. Genetic (primary HLH) or acquired (secondary HLH) defect of CD8 T lymphocyte and NK cell cytotoxicity is at the origin of HLH. Secondary or acquired HLH occurred in infections, autoimmune diseases or malignancies. HLH symptoms are not specific, and diagnosis is often delayed. Biological parameters are cytopenias, hyperferritinemia, hyperetriglyceridemia, hypofibrinogenemia, hemophagocytosis in bone marrow or other involved organs. Advances in pathophysiological mechanisms understanding allow to identify perturbed immunologic parameters : sCD25 and sCD163 increased, CD8 T cell HLA-DR overexpression, NK cytotoxicity absent or decreased. Initial treatment is urgent and consists of a decrease of hyperinflammatory state. Hematopoietic cell transplantation is proposed in genetic HLH.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Revue Francophone des Laboratoires - Volume 2014, Issue 467, December 2014, Pages 29-35
نویسندگان
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