کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4133323 1271415 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Granulomas are a source of interleukin-33 expression in pulmonary and extrapulmonary sarcoidosis
ترجمه فارسی عنوان
گرانولومها منبع ایرولیکین 33 در سارکوئیدوز ریه و خارج ریه می باشند
کلمات کلیدی
اینترلوکین 33، سارکوئیدوز، گرانولومای، ماکروفاژ، بیومارکر، ایمونوهیستوشیمی
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی آسیب‌شناسی و فناوری پزشکی
چکیده انگلیسی

SummarySarcoidosis is a chronic inflammatory disease characterized by noncaseating epithelioid granulomas. These granulomas consist of highly differentiated mononuclear phagocytes—epithelioid cells and multinucleated giant cells (MNGCs)—surrounded by a proinflammatory infiltrate. Interleukin-33 (IL-33) is an inflammatory cytokine that is constitutively expressed in barrier tissues such as skin and lung and up-regulated in inflammation. Because sarcoidosis occurs most frequently in lung and skin, we studied the expression of this cytokine by immunohistochemistry in these tissues from patients with sarcoidosis, with foreign body granulomas, with other granulomatous diseases, and in corresponding normal tissues. We identified nuclear IL-33 staining of epithelioid cells and MNGCs in biopsies of skin (18/25 patients, 72%) and lung (10/19 patients, 53%) sarcoidosis. In contrast, sarcoidal granulomas in lymph nodes did not show IL-33 expression. Other granulomatous diseases showed only occasional and weak IL-33 expression. In sarcoidosis, we found a strong correlation between IL-33 expression and systemic disease, presence of MNGCs, and an M2-like macrophage phenotype as assessed by CD163 staining. Therefore, we propose that IL-33 plays a critical role in pathogenesis and disease progression of sarcoidosis. Because IL-33 is less commonly and only weakly expressed in other granulomatous diseases, the detection of IL-33 might serve as an adjunctive diagnostic marker. IL-33 expression in sarcoidosis seems to be dependent on the specific tissue microenvironment of sarcoidal granulomas and represents a novel biomarker for systemic involvement.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Human Pathology - Volume 45, Issue 11, November 2014, Pages 2202–2210
نویسندگان
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