کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3256963 1207381 2013 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Signature MicroRNA expression patterns identified in humans with 22q11.2 deletion/DiGeorge syndrome
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی ایمونولوژی
پیش نمایش صفحه اول مقاله
Signature MicroRNA expression patterns identified in humans with 22q11.2 deletion/DiGeorge syndrome
چکیده انگلیسی

Patients with 22q11.2 deletion syndrome have heterogeneous clinical presentations including immunodeficiency, cardiac anomalies, and hypocalcemia. The syndrome arises from hemizygous deletions of up to 3 Mb on chromosome 22q11.2, a region that contains 60 genes and 4 microRNAs. MicroRNAs are important post-transcriptional regulators of gene expression, with mutations in several microRNAs causal to specific human diseases. We characterized the microRNA expression patterns in the peripheral blood of patients with 22q11.2 deletion syndrome (n = 31) compared to normal controls (n = 22). Eighteen microRNAs had a statistically significant differential expression (p < 0.05), with miR-185 expressed at 0.4 × normal levels. The 22q11.2 deletion syndrome cohort exhibited microRNA expression hyper-variability and group dysregulation. Selected microRNAs distinguished patients with cardiac anomalies, hypocalcemia, and/or low circulating T cell counts. In summary, microRNA profiling of chromosome 22q11.2 deletion syndrome/DiGeorge patients revealed a signature microRNA expression pattern distinct from normal controls with clinical relevance.


► 22q11.2 deletion syndrome patients are miR-185 haploinsufficient.
► 22q11.2/DiGeorge syndrome causes a microRNA dysregulation.
► MicroRNA profiling can identify and distinguish patients with DiGeorge syndrome.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Clinical Immunology - Volume 147, Issue 1, April 2013, Pages 11–22
نویسندگان
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