Document Detail


Early stimulation of RNA synthesis by erythropoietin in cultures of erythroid precursor cells.
MedLine Citation:
PMID:  4522297     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The effect of erythropoietin on cultured erythroid precursor cells from 13-day mouse-fetal livers was examined. Within 1 hr, erythropoietin causes a 2- to 3-fold stimulation of uridine incorporation into RNA by these cells. The types of RNA preferentially stimulated by erythropoietin during the first hour of exposure of the cells to the hormone include ribosomal RNAs and their precursors, as well as 4-5S RNA. No unique RNA species, not present in control cells, could be detected by sucrose gradient sedimentation or gel electrophoresis. Inhibition of protein synthesis for up to 1 hr does not abolish the stimulatory effect of erythropoietin on RNA synthesis, suggesting that the effect of the hormone on RNA synthesis is not mediated by a newly synthesized protein.
Authors:
G M Maniatis; R A Rifkind; A Bank; P A Marks
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Proceedings of the National Academy of Sciences of the United States of America     Volume:  70     ISSN:  0027-8424     ISO Abbreviation:  Proc. Natl. Acad. Sci. U.S.A.     Publication Date:  1973 Nov 
Date Detail:
Created Date:  1974-05-22     Completed Date:  1974-05-22     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  7505876     Medline TA:  Proc Natl Acad Sci U S A     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  3189-94     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Antibiotics, Antineoplastic / pharmacology
Carbon Radioisotopes
Cells, Cultured
Centrifugation, Density Gradient
Cycloheximide / pharmacology
Electrophoresis, Polyacrylamide Gel
Erythropoietin / antagonists & inhibitors,  pharmacology*
Fetus
Hematopoietic Stem Cells / drug effects,  metabolism*
Kinetics
Leucine / metabolism
Liver / metabolism
Mice
RNA / analysis,  biosynthesis*
RNA, Ribosomal / analysis,  biosynthesis
Stimulation, Chemical
Tritium
Uridine / metabolism
Chemical
Reg. No./Substance:
0/Antibiotics, Antineoplastic; 0/Carbon Radioisotopes; 0/RNA, Ribosomal; 10028-17-8/Tritium; 11096-26-7/Erythropoietin; 58-96-8/Uridine; 61-90-5/Leucine; 63231-63-0/RNA; 66-81-9/Cycloheximide
Comments/Corrections

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


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