Differential Diagnosis of Two Chinese Families with Dyschromatoses by Targeted Gene Sequencing
Background: The dyschromatoses are a group of disorders characterized by simultaneous hyperpigmented macules together with hypopigmented macules. Dyschromatosis universalis hereditaria (DUH) and dyschromatosis symmetrica hereditaria are two major types. While clinical and histological presentations...
Main Authors: | , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Wolters Kluwer
2016-01-01
|
Series: | Chinese Medical Journal |
Subjects: | |
Online Access: | http://www.cmj.org/article.asp?issn=0366-6999;year=2016;volume=129;issue=1;spage=33;epage=38;aulast=Liu |
id |
doaj-60e6a8563b9d4bc9be996450e135982b |
---|---|
record_format |
Article |
spelling |
doaj-60e6a8563b9d4bc9be996450e135982b2020-11-24T21:26:40ZengWolters KluwerChinese Medical Journal0366-69992016-01-011291333810.4103/0366-6999.172564Differential Diagnosis of Two Chinese Families with Dyschromatoses by Targeted Gene SequencingJia-Wei LiuAsanJun SunSergio Vano-GalvanFeng-Xia LiuXiu-Xiu WeiDong-Lai MaBackground: The dyschromatoses are a group of disorders characterized by simultaneous hyperpigmented macules together with hypopigmented macules. Dyschromatosis universalis hereditaria (DUH) and dyschromatosis symmetrica hereditaria are two major types. While clinical and histological presentations are similar in these two diseases, genetic diagnosis is critical in the differential diagnosis of these entities. Methods: Three patients initially diagnosed with DUH were included. The gene test was carried out by targeted gene sequencing. All mutations detected on ADAR1 and ABCB6 genes were analyzed according to the frequency in control database, the mutation types, and the published evidence to determine the pathogenicity. Results: Family pedigree and clinical presentations were reported in 3 patients from two Chinese families. All patients have prominent cutaneous dyschromatoses involving the whole body without systemic complications. Different pathogenic genes in these patients with similar phenotype were identified: One novel mutation on ADAR1 (c. 1325C>G) and one recurrent mutation in ABCB6 (c. 1270T>C), which successfully distinguished two diseases with the similar phenotype. Conclusion: Targeted gene sequencing is an effective tool for genetic diagnosis in pigmentary skin diseases.http://www.cmj.org/article.asp?issn=0366-6999;year=2016;volume=129;issue=1;spage=33;epage=38;aulast=LiuDyschromatoses; Dyschromatosis Symmetrica Hereditaria; Dyschromatosis Universalis Hereditaria; Targeted Gene Sequencing |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jia-Wei Liu Asan Jun Sun Sergio Vano-Galvan Feng-Xia Liu Xiu-Xiu Wei Dong-Lai Ma |
spellingShingle |
Jia-Wei Liu Asan Jun Sun Sergio Vano-Galvan Feng-Xia Liu Xiu-Xiu Wei Dong-Lai Ma Differential Diagnosis of Two Chinese Families with Dyschromatoses by Targeted Gene Sequencing Chinese Medical Journal Dyschromatoses; Dyschromatosis Symmetrica Hereditaria; Dyschromatosis Universalis Hereditaria; Targeted Gene Sequencing |
author_facet |
Jia-Wei Liu Asan Jun Sun Sergio Vano-Galvan Feng-Xia Liu Xiu-Xiu Wei Dong-Lai Ma |
author_sort |
Jia-Wei Liu |
title |
Differential Diagnosis of Two Chinese Families with Dyschromatoses by Targeted Gene Sequencing |
title_short |
Differential Diagnosis of Two Chinese Families with Dyschromatoses by Targeted Gene Sequencing |
title_full |
Differential Diagnosis of Two Chinese Families with Dyschromatoses by Targeted Gene Sequencing |
title_fullStr |
Differential Diagnosis of Two Chinese Families with Dyschromatoses by Targeted Gene Sequencing |
title_full_unstemmed |
Differential Diagnosis of Two Chinese Families with Dyschromatoses by Targeted Gene Sequencing |
title_sort |
differential diagnosis of two chinese families with dyschromatoses by targeted gene sequencing |
publisher |
Wolters Kluwer |
series |
Chinese Medical Journal |
issn |
0366-6999 |
publishDate |
2016-01-01 |
description |
Background: The dyschromatoses are a group of disorders characterized by simultaneous hyperpigmented macules together with hypopigmented macules. Dyschromatosis universalis hereditaria (DUH) and dyschromatosis symmetrica hereditaria are two major types. While clinical and histological presentations are similar in these two diseases, genetic diagnosis is critical in the differential diagnosis of these entities.
Methods: Three patients initially diagnosed with DUH were included. The gene test was carried out by targeted gene sequencing. All mutations detected on ADAR1 and ABCB6 genes were analyzed according to the frequency in control database, the mutation types, and the published evidence to determine the pathogenicity.
Results: Family pedigree and clinical presentations were reported in 3 patients from two Chinese families. All patients have prominent cutaneous dyschromatoses involving the whole body without systemic complications. Different pathogenic genes in these patients with similar phenotype were identified: One novel mutation on ADAR1 (c. 1325C>G) and one recurrent mutation in ABCB6 (c. 1270T>C), which successfully distinguished two diseases with the similar phenotype.
Conclusion: Targeted gene sequencing is an effective tool for genetic diagnosis in pigmentary skin diseases. |
topic |
Dyschromatoses; Dyschromatosis Symmetrica Hereditaria; Dyschromatosis Universalis Hereditaria; Targeted Gene Sequencing |
url |
http://www.cmj.org/article.asp?issn=0366-6999;year=2016;volume=129;issue=1;spage=33;epage=38;aulast=Liu |
work_keys_str_mv |
AT jiaweiliu differentialdiagnosisoftwochinesefamilieswithdyschromatosesbytargetedgenesequencing AT asan differentialdiagnosisoftwochinesefamilieswithdyschromatosesbytargetedgenesequencing AT junsun differentialdiagnosisoftwochinesefamilieswithdyschromatosesbytargetedgenesequencing AT sergiovanogalvan differentialdiagnosisoftwochinesefamilieswithdyschromatosesbytargetedgenesequencing AT fengxialiu differentialdiagnosisoftwochinesefamilieswithdyschromatosesbytargetedgenesequencing AT xiuxiuwei differentialdiagnosisoftwochinesefamilieswithdyschromatosesbytargetedgenesequencing AT donglaima differentialdiagnosisoftwochinesefamilieswithdyschromatosesbytargetedgenesequencing |
_version_ |
1725978115174301696 |