Academic Journal
Fibroblasts from patients with Diamond-Blackfan anaemia show abnormal expression of genes involved in protein synthesis, amino acid metabolism and cancer
| العنوان: | Fibroblasts from patients with Diamond-Blackfan anaemia show abnormal expression of genes involved in protein synthesis, amino acid metabolism and cancer |
|---|---|
| المؤلفون: | Avondo, Federica, Roncaglia, Paola, Crescenzio, Nicoletta, Krmac, Helena, Garelli, Emanuela, Armiraglio, Marta, Castagnoli, Carlotta, Campagnoli, Maria, Ramenghi, Ugo, Gustincich, Stefano, Santoro, Claudio, Dianzani, Irma |
| بيانات النشر: | BioMed Central Ltd. |
| سنة النشر: | 2009 |
| المجموعة: | BioMed Central |
| الوصف: | Background Diamond-Blackfan anaemia (DBA) is a rare inherited red cell hypoplasia characterised by a defect in the maturation of erythroid progenitors and in some cases associated with malformations. Patients have an increased risk of solid tumors. Mutations have been found in several ribosomal protein (RP) genes, i.e RPS19, RPS24, RPS17, RPL5, RPL11, RPL35A . Studies in haematopoietic progenitors from patients show that haplo-insufficiency of an RP impairs rRNA processing and ribosome biogenesis. DBA lymphocytes show reduced protein synthesis and fibroblasts display abnormal rRNA processing and impaired proliferation. Results To evaluate the involvement of non-haematopoietic tissues in DBA, we have analysed global gene expression in fibroblasts from DBA patients compared to healthy controls. Microarray expression profiling using Affymetrix GeneChip Human Genome U133A 2.0 Arrays revealed that 421 genes are differentially expressed in DBA patient fibroblasts. These genes include a large cluster of ribosomal proteins and factors involved in protein synthesis and amino acid metabolism, as well as genes associated to cell death, cancer and tissue development. Conclusion This analysis reports for the first time an abnormal gene expression profile in a non-haematopoietic cell type in DBA. These data support the hypothesis that DBA may be due to a defect in general or specific protein synthesis. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | http://www.biomedcentral.com/1471-2164/10/442 |
| الاتاحة: | http://www.biomedcentral.com/1471-2164/10/442 |
| Rights: | Copyright 2009 Avondo et al; licensee BioMed Central Ltd. |
| رقم الانضمام: | edsbas.495C8D53 |
| قاعدة البيانات: | BASE |
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