Novel Mutation of the TINF2 Gene in a Patient with Dyskeratosis Congenita

被引:5
作者
Panichareon, Benjaporn [1 ]
Seedapan, Thanawat [1 ]
Thongnoppakhun, Wanna [2 ]
Limwongse, Chanin [2 ,3 ]
Pithukpakorn, Manop [2 ,3 ]
Limjindaporn, Thawornchai [1 ]
机构
[1] Mahidol Univ, Siriraj Hosp, Fac Med, Dept Anat, Bangkok, Thailand
[2] Mahidol Univ, Siriraj Hosp, Fac Med, Div Mol Genet,Dept Res & Dev, Bangkok, Thailand
[3] Mahidol Univ, Siriraj Hosp, Fac Med, Div Med Genet,Dept Med, Bangkok, Thailand
关键词
Dyskeratosis congenita; TINF2; Mutation; Direct sequencing;
D O I
10.1159/000439042
中图分类号
R75 [皮肤病学与性病学];
学科分类号
100206 ;
摘要
Dyskeratosis congenita (DKC) is a rare inherited disease that is characterized by abnormal skin pigmentation, nail dystrophy and mucosal leukoplakia. DKC is caused by an abnormality in a component of the telomerase and shelterin complexes. TINF2 encodes a protein in the shelterin complex and TERC encodes a component of the telomerase complex. Mutations of both genes have been associated with DKC. This study examined mutations in TINF2 and TERC by direct DNA sequencing in a Thai patient with DKC. We identified a novel mutation (c.845G>T) that is located in exon 6 of TINF2 and changes an arginine to leucine (Arg282Leu). This identified mutation could be applied for molecular genetic diagnosis and genetic counseling of patients with DKC. (C) 2015 S. Karger AG, Basel
引用
收藏
页码:212 / 219
页数:8
相关论文
共 11 条
[1]  
Calado RT., 2014, PROGR MOL BIOL TRANS, V1
[2]   Dyskeratosis congenita with pigmentation, dystrophia unguis and leukokeratosis oris [J].
Cole, HN ;
Rauschkolb, JE ;
Toomey, J .
ARCHIVES OF DERMATOLOGY AND SYPHILOLOGY, 1930, 21 (01) :71-95
[3]   Dyskeratosis Congenita [J].
Dokal, Inderjeet .
HEMATOLOGY-AMERICAN SOCIETY HEMATOLOGY EDUCATION PROGRAM, 2011, :480-486
[4]   Pulmonary fibrosis in dyskeratosis congenita with TINF2 gene mutation [J].
Fukuhara, Atsuro ;
Tanino, Yoshinori ;
Ishii, Taeko ;
Inokoshi, Yayoi ;
Saito, Kazue ;
Fukuhara, Naoko ;
Sato, Suguru ;
Saito, Junpei ;
Ishida, Takashi ;
Yamaguchi, Hiroki ;
Munakata, Mitsuru .
EUROPEAN RESPIRATORY JOURNAL, 2013, 42 (06) :1757-1759
[5]   A telomerase component is defective in the human disease dyskeratosis congenita [J].
Mitchell, JR ;
Wood, E ;
Collins, K .
NATURE, 1999, 402 (6761) :551-555
[6]   TINF2, a component of the shelterin telomere protection complex, is mutated in dyskeratosis congenita [J].
Savage, Sharon A. ;
Giri, Neelarn ;
Baerlocher, Gabriela M. ;
Orr, Nick ;
Lansdorp, Peter M. ;
Alter, Blanche P. .
AMERICAN JOURNAL OF HUMAN GENETICS, 2008, 82 (02) :501-509
[7]  
Viprakasit V, 2001, HAEMATOLOGICA, V86, P871
[8]   Association between aplastic anaemia and mutations in telomerase RNA [J].
Vulliamy, T ;
Marrone, A ;
Dokal, I ;
Mason, PJ .
LANCET, 2002, 359 (9324) :2168-2170
[9]   Dyskeratosis congenita: A disorder of defective telomere maintenance? [J].
Walne, AJ ;
Marrone, A ;
Dokal, I .
INTERNATIONAL JOURNAL OF HEMATOLOGY, 2005, 82 (03) :184-189
[10]   TINF2 mutations result in very short telomeres: analysis of a large cohort of patients with dyskeratosis congenita and related bone marrow failure syndromes [J].
Walne, Amanda J. ;
Vulliamy, Tom ;
Beswick, Richard ;
Kirwan, Michael ;
Dokal, Inderjeet .
BLOOD, 2008, 112 (09) :3594-3600