{"title":"Clinical utility of relative telomere length analysis in pediatric bone marrow failure","authors":"Shilpa Amatya , Prateek Bhatia , Sudhanshi Raina , Sreejesh Sreedharanunni , Minu Singh , Emine Rahman , M.V. Archana , Amita Trehan","doi":"10.1016/j.bcmd.2024.102882","DOIUrl":null,"url":null,"abstract":"<div><h3>Introduction</h3><p>Telomere length related studies are limited in pediatric marrow failure cases due to difficulty in establishing population specific age related normograms. Moreover, there is paucity of data related to clinical relevance of telomere length in idiopathic aplastic anemia (IAA) and non telomere biology inherited bone marrow failure syndrome (IBMFS) cases. Methodology: Hence, in current study we investigated Relative telomere length (RTL) by RQ-PCR in 83 samples as: healthy controls (<em>n</em> = 44), IAA (<em>n</em> = 15) and IBMFS (<em>n</em> = 24). In addition, we performed chromosomal breakage studies and targeted NGS to screen for pathogenic variants. Results & Conclusion: Median RTL was significantly different between control vs. IBMFS (<em>p</em>-0.002), IAA vs. IBMFS (<em>p</em>-0.0075) and DC vs. non-DC IBMFS (<em>p</em>-0.011) but not between control vs. IAA (<em>p</em>-0.46). RTL analysis had clinical utility in differentiating BMF cases as 75 % (9/12) of DC had short/very short telomeres compared to only 17 % (2/12) of non-DC IBMFS, 7 % (1/15) of IAA and 7 % (3/44) of controls (<em>p</em> < 0.001).</p></div>","PeriodicalId":8972,"journal":{"name":"Blood Cells Molecules and Diseases","volume":"109 ","pages":"Article 102882"},"PeriodicalIF":2.1000,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Blood Cells Molecules and Diseases","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1079979624000603","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"HEMATOLOGY","Score":null,"Total":0}
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Abstract
Introduction
Telomere length related studies are limited in pediatric marrow failure cases due to difficulty in establishing population specific age related normograms. Moreover, there is paucity of data related to clinical relevance of telomere length in idiopathic aplastic anemia (IAA) and non telomere biology inherited bone marrow failure syndrome (IBMFS) cases. Methodology: Hence, in current study we investigated Relative telomere length (RTL) by RQ-PCR in 83 samples as: healthy controls (n = 44), IAA (n = 15) and IBMFS (n = 24). In addition, we performed chromosomal breakage studies and targeted NGS to screen for pathogenic variants. Results & Conclusion: Median RTL was significantly different between control vs. IBMFS (p-0.002), IAA vs. IBMFS (p-0.0075) and DC vs. non-DC IBMFS (p-0.011) but not between control vs. IAA (p-0.46). RTL analysis had clinical utility in differentiating BMF cases as 75 % (9/12) of DC had short/very short telomeres compared to only 17 % (2/12) of non-DC IBMFS, 7 % (1/15) of IAA and 7 % (3/44) of controls (p < 0.001).
期刊介绍:
Blood Cells, Molecules & Diseases emphasizes not only blood cells, but also covers the molecular basis of hematologic disease and studies of the diseases themselves. This is an invaluable resource to all those interested in the study of hematology, cell biology, immunology, and human genetics.