Journals / Turkish Journal of Hematology / 2012 / Cilt: 29 - Sayı: 3

A665G Perforin gen mutasyonu olan Ailesel hemofagositik lenfohistiyositozis: Bir olgu sunumu

Familial hemophagocytic lymphohistiocytosis with A665G perforin gene mutation: A case report

Pages
265–269
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Prenatal diagnosis was performed in the family and the fetus was found to be heterozygous for the mutation.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Familial hemophagocytic lymphohistiocytosis (FHL) is a genetically heterogeneous disease.
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Key Findings & Data:In all, 5 genetic loci have been identified in FHL, and all known affected genes encode critical components of the granule exocytosis pathway, which is essential for the release of cytotoxic granules and proteases that are necessary for targeted cell death.
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Conclusion & Impact:Prenatal diagnosis was performed in the family and the fetus was found to be heterozygous for the mutation.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Familial hemophagocytic lymphohistiocytosis (FHL) is a genetically heterogeneous disease. Presentation of the disease such as primarily fever, hepatosplenomegaly, and cytopenia, which are the results of functional degradation in cytotoxic T-lymphocytes and natural killer cells, activation of macrophages and T-lymphocytes, over production of proinflammatory cytokines, and hemophagocytosis. In all, 5 genetic loci have been identified in FHL, and all known affected genes encode critical components of the granule exocytosis pathway, which is essential for the release of cytotoxic granules and proteases that are necessary for targeted cell death. Herein we present an FHL patient with a severe clinical course and a very rare perforin gene mutation. The patient was homozygous for A665G mutation. However, the child died in a short period of time. Prenatal diagnosis was performed in the family and the fetus was found to be heterozygous for the mutation.

Özet

Ailesel Hemofagositik Lenfohistiyositozis(AHL), genetik olarak oldukça heterojen bir hastalıktır. Sıklıkla ateş, hepatosplenomegali, sitopeni gibi bulgular görülebilir. Bu bulgular doğal katil hücreler ve sitotoksik T lenfositlerde fonksiyonel bozulma, makrofaj ve T lenfositlerde aktivasyon, proinflamatuar sitokinlerde artış ve hemofagositoz sonucu oluşur. AHL’de 5 ayrı genetik bölge tanımlanmıştır. Tüm bu bölgelerin ortak özelliği granul ekzositoz yolağı için kritik görev gören maddelerin yapımında rol oynamalarıdır. Bu makalede çok nadir perforin mutasyonuna sahip ve ağır klinik tabloyla erken dönemde kaybedilen bir olgu sunulmuştur. Hastada homozigot A665G mutasyonu bulundu. Hasta kısa sure sonra kaybedildi. Sonraki gebelikte prenatal tanı konuldu. Fetusda aynı mutasyonun heterozigotluğu gösterildi.

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Cite This Article

YENİCESU, İ., BASILE, G. D. S., EMEKSİZ, H. C., DALGIÇ, B. (2012). A665G Perforin gen mutasyonu olan Ailesel hemofagositik lenfohistiyositozis: Bir olgu sunumu. Turkish Journal of Hematology, Cilt: 29 - Sayı: 3, 265–269. https://ajindex.com/articles/412698

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