Dergiler / Balkan Medical Journal / 2020 / Cilt: 37 - Sayı: 1

Genetic Diagnosis of Hereditary Hemorrhagic Telangiectasia: Four Novel Pathogenic Variations in Turkish Patients

Sayfa
43–46
Yayın Tarihi
2022-10-11
DOI
—
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

New pathogenic variations can be revealed,which might help manage patients with hereditary hemorrhagictelangiectasia

📌 3 Maddede Bu Makale

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Amaç & Hipotez:Aims: Hereditary hemorrhagic telangiectasia is an autosomaldominant disorder characterized by telangiectasia, epistaxis, andvascular malformations.
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Temel Bulgular & Veri:Pathogenic mutations were found in ENG,AVCRL1, SMAD4, and GDF genes.
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Sonuç & Katkı:New pathogenic variations can be revealed,which might help manage patients with hereditary hemorrhagictelangiectasia
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Alan Parametreleri

Abstract

Aims: Hereditary hemorrhagic telangiectasia is an autosomaldominant disorder characterized by telangiectasia, epistaxis, andvascular malformations. Pathogenic mutations were found in ENG,AVCRL1, SMAD4, and GDF genes. In this study, we present ourdatabase of patients with hereditary hemorrhagic telangiectasiaregarding the phenotype-genotype relations and discuss two novelENG gene pathogenic variations in two unrelated families.Methods: Next Generation Sequencing analysis was performed onthe peripheral blood of nine patients with hereditary hemorrhagictelangiectasia in four unrelated families. All patients were diagnosedwith hereditary hemorrhagic telangiectasia according to the Curaçaocriteria. Data on treatment and screenings of visceral involvementwere recorded from files.Results: We have found a pathogenic variation in either the ENG orACVRL1 gene in each family. Two novel pathogenic variations in theENG gene, including NM_000118.3 (ENG): c.416delC (p.P139fs*24)and NM_000118.3(ENG): c.1139dupT (p.Leu380PhefsTer16),were found in the same family. The NM_000020.2(ACVRL1):c.1298C>T (p.Pro433Leu) pathogenic variation in the ACVRL1gene in our first family and a novel heterozygous likely pathogenicNM_000020.2(ACVRL1): c.95T>C (p.Val32Ala) variation wasfound in our second family. Seven of the nine patients were treatedwith thalidomide for controlling bleeding episodes. All patientsresponded to thalidomide. In one patient, the response to thalidomidewas lost and switched to bevacizumab.Conclusion: In hereditary hemorrhagic telangiectasia, certain types ofmutations correlate with disease phenotypes and with next generationsequencing methods. New pathogenic variations can be revealed,which might help manage patients with hereditary hemorrhagictelangiectasia

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Bu Makaleye Atıf Yap

GÜRKAN, H., KIRKIZLAR, H. O., DEMİRCİ, U., DEMİR, S., ÜMİT, E. G., GÜLARSLAN, S. K., BAŞ, V., DEMİR, A. M., BAYSAL, M. (2022). Genetic Diagnosis of Hereditary Hemorrhagic Telangiectasia: Four Novel Pathogenic Variations in Turkish Patients. Balkan Medical Journal, Cilt: 37 - Sayı: 1, 43–46. https://ajindex.com/articles/460864

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Kaynakça (13)

  1. Begbie ME, Wallace GMF, Shovlin CL. Hereditary haemorrhagic telangiectasia (Osler-Weber-Rendu syndrome): a view from the 21st century. Postgrad Med J 2003;79:18-24
  2. Shovlin CL, Guttmacher AE, Buscarini E, Faughnan ME, Hyland RH, Westermann CJJ, et al. Diagnostic criteria for hereditary hemorrhagic telangiectasia (Rendu-OslerWeber syndrome). Am J Med Genet 2000;91:66-7
  3. Shovlin CL. Hereditary haemorrhagic telangiectasia: pathophysiology, diagnosis and treatment. Blood Rev 2010;24:203-19
  4. Bayrak-Toydemir P, Mao R, Lewin S, McDonald J. Hereditary hemorrhagic telangiectasia: An overview of diagnosis and management in the molecular era for clinicians. Genet Med 2004;6:175-91
  5. Olivieri C, Pagella F, Semino L, Lanzarini L, Valacca C, Pilotto A, et al. Analysis of ENG and ACVRL1 genes in 137 HHT Italian families identifies 76 different mutations (24 novel). Comparison with other European studies. J Hum Genet 2007;52:820-9
  6. Gallione C, Aylsworth AS, Beis J, Berk T, Bernhardt B, Clark RD, et al. Overlapping spectra of SMAD4 mutations in juvenile polyposis (JP) and JP-HHT syndrome. Am J Med Genet A 2010;152:333-9
  7. Karlsson T, Cherif H. Mutations in the ENG, ACVRL1, and SMAD4 genes and clinical manifestations of hereditary haemorrhagic telangiectasia: experience from the Center for Osler's Disease, Uppsala University Hospital. Ups J Med Sci 2018;123:153-7
  8. McDonald J, Wooderchak-Donahue W, VanSant Webb C, Whitehead K, Stevenson DA, Bayrak-Toydemir P. Hereditary hemorrhagic telangiectasia: genetics and molecular diagnostics in a new era. Front Genet 2015;6:1
  9. Ruiz-Llorente L, Gallardo-Vara E, Rossi E, Smadja DM, Botella LM, Bernabeu C. Endoglin and alk1 as therapeutic targets for hereditary hemorrhagic telangiectasia. Expert Opin Ther Targets 2017;21:933-47
  10. Bossler AD, Richards J, George C, Godmilow L, Ganguly A. Novel mutations in ENG and ACVRL1 identified in a series of 200 individuals undergoing clinical genetic testing for hereditary hemorrhagic telangiectasia (HHT): correlation of genotype with phenotype. Hum Mutat 2006;27:667-75
  11. Letteboer TG, Zewald RA, Kamping EJ, de Haas G, Mager JJ, Snijder RJ, et al. Hereditary hemorrhagic telangiectasia: ENG and ALK-1 mutations in Dutch patients. Hum Genet 2005;116:8-16
  12. Lesca G, Burnichon N, Raux G, Tosi M, Pinson S, Marion MJ, et al. Distribution of ENG and ACVRL1 (ALK1) mutations in French HHT patients. Hum Mutat 2006;27:598
  13. Hoag JB, Terry P, Mitchell S, Reh D, Merlo CA. An ep