Document Detail

Down regulation of ribosomal protein mRNAs during neuronal differentiation of human NTERA2 cells.
MedLine Citation:
PMID:  11100899     Owner:  NLM     Status:  MEDLINE    
We have analysed the expression of 32 ribosomal protein (RP) mRNAs during retinoic acid induced neuronal differentiation of human NTERA2 cells. Except for a new S27 variant (S27v), all were down regulated both in selectively replated differentiated neurons and the most differentiated continuous cultures, i.e., non-replated cultures. However, the expression profiles of the individual RP mRNAs were different, most (L3, L7, L8, L10, L13, L23a, L27a, L36a, L39, P0, S2, S3, S3a, S4X, S6, S9, S12, S13, S16, S19, S20, S23, and S27a) exhibited a constant down regulation, whereas a few were either initially constant (L11, L32, S8, and S11) or up regulated (L6, L15, L17, L31, and S27y) and then down regulated. The expression of S27v remained elevated in the most differentiated continuous cultures but was down regulated in replated differentiated neurons. The down regulation of RP mRNAs was variable: the expression levels in differentiated replated neurons were between 10% (S3) and 90% (S11) of the levels in undifferentiated cells. The ratio between rRNA and RP mRNA changed during the differentiation; in differentiated neurons there were, on average, about half the number of RP mRNAs per rRNA as compared to undifferentiated cells. The expression profiles of a few translation-related proteins were also determined. EF1alpha1, EF1beta1, and EF1delta were down regulated, whereas the expression of the neuron and muscle specific EF1alpha2 increased. The reduction in the expression of RP mRNAs was coordinated with a reduction in the expression level of the proliferation marker PCNA. The expression levels of most RP mRNAs were lower in purified differentiated post-mitotic neurons than in the most differentiated continuous cultures, despite similar levels of PCNA, suggesting that both the differentiation state and the proliferative status of the cells affect the expression of RP mRNAs.
M Bévort; H Leffers
Related Documents :
22805579 - Expression profile of luteinizing hormone receptor gene in hierarchal follicles and reg...
1970429 - Presence of neuropeptide messenger rnas in neuronal processes.
22786869 - The transcription factors bel1 and spl are required for cytokinin and auxin signaling d...
16893969 - The novel gene asb11: a regulator of the size of the neural progenitor compartment.
12815759 - Neurotrophin-3 is expressed in a discrete subset of olfactory receptor neurons in the m...
16841169 - Expression of coxsackie-adenovirus receptor (car) in the developing mouse olfactory sys...
25140399 - Tgf-β1 downregulates star expression and decreases progesterone production through sma...
12711959 - Decreased expression of fibroblast and keratinocyte growth factor isoforms and receptor...
7514889 - Mrna binding track in the human 80s ribosome for mrna analogues randomly substituted wi...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Differentiation; research in biological diversity     Volume:  66     ISSN:  0301-4681     ISO Abbreviation:  Differentiation     Publication Date:  2000 Oct 
Date Detail:
Created Date:  2001-02-27     Completed Date:  2001-03-01     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0401650     Medline TA:  Differentiation     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  81-92     Citation Subset:  IM    
Department of Growth and Reproduction, Rigshospitalet, Copenhagen, Denmark.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Cell Differentiation / physiology*
DNA Primers
Gene Expression Regulation*
Neurons / cytology*,  physiology
Polymerase Chain Reaction
RNA, Messenger / genetics
Ribosomal Proteins / genetics*
Transcription, Genetic*
Tumor Cells, Cultured
Reg. No./Substance:
0/DNA Primers; 0/RNA, Messenger; 0/Ribosomal Proteins

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Identification of STKA-dependent genes in Dictyostelium discoideum.
Next Document:  Defects in adhesion and migration, but not in proliferation and differentiation, of embryonic stem c...