Document Detail


Regulation of cell cycle by cytoplasmic components in the amphibian eggs.
MedLine Citation:
PMID:  6687048     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Injections of extracts of Xenopus egg cytoplasm induce precocious cleavage furrows in activated Pleurodeles eggs. This cleavage timing system (CTS) activity is retained in two distinct fractions separated by gel filtration. Acceleration of the first cell cycle of the Pleurodeles egg is directly related to the concentration of the injected extracts. However, the maximum advance of the cleavage cycle does not exceed 25 to 30% of the control cycle. Preliminary characterization of these fractions indicates that the CTS effect is abolished after protease but not RNAse treatment, and that the CTS factors are thermostable. The phase of the egg cell cycle sensitive to the CTS factors, which act as a 'clock system mechanism', is discussed.
Authors:
C Aimar; C Vilain; M Delarue
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Cell differentiation     Volume:  13     ISSN:  0045-6039     ISO Abbreviation:  Cell Differ.     Publication Date:  1983 Dec 
Date Detail:
Created Date:  1984-06-21     Completed Date:  1984-06-21     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0342640     Medline TA:  Cell Differ     Country:  IRELAND    
Other Details:
Languages:  eng     Pagination:  293-300     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Cell Cycle / drug effects
Cell Extracts / pharmacology*
Chemical Fractionation
Cleavage Stage, Ovum / drug effects
Cytoplasm / analysis*
Dose-Response Relationship, Drug
Female
Ovum / cytology*
Salamandridae / physiology*
Time Factors
Tissue Extracts / pharmacology*
Xenopus laevis / physiology*
Chemical
Reg. No./Substance:
0/Cell Extracts; 0/Tissue Extracts

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


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