Publications by authors named "L Fievet"

Article Synopsis
  • - Diamond-Blackfan anemia syndrome (DBA) is caused by mutations in over 20 ribosomal protein genes, and this study specifically investigates the role of RPL17, which encodes a large ribosomal subunit protein.
  • - Patients with RPL17 mutations exhibited typical DBA symptoms and erythroid proliferation defects, with further experiments showing that these mutations are pathogenic and lead to anemia in model organisms.
  • - The research found that RPL17 variants result in defects in ribosomal RNA maturation and suggest that DBA primarily stems from insufficient ribosome production rather than changes in ribosome structure, as indicated by altered translation profiles in cell lines.
View Article and Find Full Text PDF

Polyglutamine (polyQ)-encoding CAG repeat expansions represent a common disease-causing mutation responsible for several dominant spinocerebellar ataxias (SCAs). PolyQ-expanded SCA proteins are toxic for cerebellar neurons, with Purkinje cells (PCs) being the most vulnerable. RNA interference (RNAi) reagents targeting transcripts with expanded CAG reduce the level of various mutant SCA proteins in an allele-selective manner in vitro and represent promising universal tools for treating multiple CAG/polyQ SCAs.

View Article and Find Full Text PDF

Background: Clefts of the lip and palate (CLP) are facial deformities that require multiple surgical procedures during childhood. One of these steps consists of filling the alveolar space with bone graft, traditionally removed from the iliac crest. However, this procedure could be invasive in children.

View Article and Find Full Text PDF
Article Synopsis
  • Researchers identified a genetic cause for a rare neurodevelopmental syndrome characterized by cognitive impairment, distinctive facial features, and various additional health issues.
  • They studied six individuals from unrelated families using exome sequencing and created models with human stem cells and zebrafish to examine the effects of the identified gene, CACHD1.
  • Results showed that mutations in CACHD1 lead to significant neural development problems and physical defects, linking it directly to the syndrome’s symptoms.
View Article and Find Full Text PDF

Background: Native bone marrow (BM) mesenchymal stem/stromal cells (BM-MSCs) participate in generating and shaping the skeleton and BM throughout the lifespan. Moreover, BM-MSCs regulate hematopoiesis by contributing to the hematopoietic stem cell niche in providing critical cytokines, chemokines and extracellular matrix components. However, BM-MSCs contain a heterogeneous cell population that remains ill-defined.

View Article and Find Full Text PDF