4.7 Article

Congenital Diarrhea and Cholestatic Liver Disease: Phenotypic Spectrum Associated with MYO5B Mutations

期刊

JOURNAL OF CLINICAL MEDICINE
卷 10, 期 3, 页码 -

出版社

MDPI
DOI: 10.3390/jcm10030481

关键词

congenital diarrheal diseases; enteropathy; microvillus inclusion disease; MYO5B; myosin Vb; progressive familial intrahepatic cholestasis; PFIC; genotype– phenotype correlation; lack of protein; tail domain

资金

  1. Jubilaumsfonds der Osterreichischen Nationalbank [16678, 18019]
  2. Tiroler Wissenschaftsfonds [0404/2386]

向作者/读者索取更多资源

MYO5B plays a role in protein trafficking and recycling in cells, with mutations leading to conditions like MVID and early-onset cholestatic liver disease. The study identified new patients and mutations, providing insights into the functional consequences of MYO5B mutations.
Myosin Vb (MYO5B) is a motor protein that facilitates protein trafficking and recycling in polarized cells by RAB11- and RAB8-dependent mechanisms. Biallelic MYO5B mutations are identified in the majority of patients with microvillus inclusion disease (MVID). MVID is an intractable diarrhea of infantile onset with characteristic histopathologic findings that requires life-long parenteral nutrition or intestinal transplantation. A large number of such patients eventually develop cholestatic liver disease. Bi-allelic MYO5B mutations are also identified in a subset of patients with predominant early-onset cholestatic liver disease. We present here the compilation of 114 patients with disease-causing MYO5B genotypes, including 44 novel patients as well as 35 novel MYO5B mutations, and an analysis of MYO5B mutations with regard to functional consequences. Our data support the concept that (1) a complete lack of MYO5B protein or early MYO5B truncation causes predominant intestinal disease (MYO5B-MVID), (2) the expression of full-length mutant MYO5B proteins with residual function causes predominant cholestatic liver disease (MYO5B-PFIC), and (3) the expression of mutant MYO5B proteins without residual function causes both intestinal and hepatic disease (MYO5B-MIXED). Genotype-phenotype data are deposited in the existing open MYO5B database in order to improve disease diagnosis, prognosis, and genetic counseling.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据