Blood expression profiles for tuberous sclerosis complex 2, neurofibromatosis type 1, and Down's syndrome.

Abstract:

:Blood gene expression profiling has been applied to a variety of hematological malignancies, autoimmune disorders, and infectious diseases. This study applies this approach to genetic diseases without obvious blood phenotypes. Three genetic diseases including tuberous sclerosis complex 2, neurofibromatosis type 1, and Down's syndrome were compared with a group of healthy controls. RNA from whole blood was surveyed using Affymetrix U133A arrays. Each disease was associated with a unique gene expression pattern in blood that can be accurately distinguished by a classifier. Genes on chromosome 21 were overexpressed in Down's syndrome, and genes controlling cell cycle and proliferation were associated with tuberous sclerosis complex type 2 or neurofibromatosis type 1. A subset of genes involved in cardiac development or remodeling were overexpressed in patients with Down's syndrome and congenital heart defects. These findings suggest that blood gene expression profiling on a broader basis might be useful for genetic disease screening/diagnosis and might help elucidate mechanisms and pathways that lead to genotype-phenotype differences.

journal_name

Ann Neurol

journal_title

Annals of neurology

authors

Tang Y,Schapiro MB,Franz DN,Patterson BJ,Hickey FJ,Schorry EK,Hopkin RJ,Wylie M,Narayan T,Glauser TA,Gilbert DL,Hershey AD,Sharp FR

doi

10.1002/ana.20291

keywords:

subject

Has Abstract

pub_date

2004-12-01 00:00:00

pages

808-14

issue

6

eissn

0364-5134

issn

1531-8249

journal_volume

56

pub_type

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