کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5954518 | 1173314 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A Novel Dyskerin (DKC1) Mutation Is Associated With Familial Interstitial Pneumonia
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کلمات کلیدی
familial interstitial pneumoniaAECHRCTPFTFIPIPFSIFTTRFPBMChigh-resolution CT - CT با وضوح بالاILD - آتشInterstitial lung disease - بیماری ریه بینابینیPulmonary function test - تست عملکرد ریهPeripheral blood mononuclear cell - سلول تک هسته ای خون محیطیalveolar epithelial cell - سلول های اپیتلیال آلوئولارidiopathic pulmonary fibrosis - فیبروز ریوی ایدیوپاتیکtelomere restriction fragment - قطعه محدود کننده تلومرSorting Intolerant From Tolerant - مرتب کردن غیر قابل تحمل از تحملpolymerase chain reaction - واکنش زنجیره ای پلیمرازPCR - واکنش زنجیرهٔ پلیمرازDyskeratosis congenita - کولونوسکوپی
موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
کاردیولوژی و پزشکی قلب و عروق
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چکیده انگلیسی
Short telomeres are frequently identified in patients with idiopathic pulmonary fibrosis (IPF) and its inherited form, familial interstitial pneumonia (FIP). We identified a kindred with FIP with short telomeres who did not carry a mutation in known FIP genes TERT or hTR. We performed targeted sequencing of other telomere-related genes to identify the genetic basis of FIP in this kindred. The proband was a 69 year-old man with dyspnea, restrictive pulmonary function test results, and reticular changes on high-resolution CT scan. An older male sibling had died from IPF. The proband had markedly shortened telomeres in peripheral blood and undetectably short telomeres in alveolar epithelial cells. Polymerase chain reaction-based sequencing of NOP10, TINF2, NHP2, and DKC1 revealed that both affected siblings shared a novel A to G 1213 transition in DKC1 near the hTR binding domain that is predicted to encode a Thr405Ala amino acid substitution. hTR levels were decreased out of proportion to DKC1 expression in the T405A DKC1 proband, suggesting this mutation destabilizes hTR and impairs telomerase function. This DKC1 variant represents the third telomere-related gene identified as a genetic cause of FIP. Further investigation into the mechanism by which dyskerin contributes to the development of lung fibrosis is warranted.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chest - Volume 146, Issue 1, July 2014, Pages e1-e7
Journal: Chest - Volume 146, Issue 1, July 2014, Pages e1-e7
نویسندگان
Jonathan A. MD, Daphne B. MS, Cheryl BS, Vasiliy V. MD, Leena PhD, Joyce E. MD, William E. MD, John A. MD, Joy D. PhD, Timothy S. MD, James E. MD,