Document Detail


Expression and immunohistochemical localization of Cdc2 and P70S6K in different stages of mouse germ cells.
MedLine Citation:
PMID:  16329156     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In order to determine the function and possible relationship between Cdc2 and P(70)S6K, Western blot analysis and immunohistochemistry analysis were used to study the expression and kinase activity of Cdc2 and P(70)S6K in male mouse germ cells. With the maturation of germ cells in the testis, the expression of Cdc2 and P(70)S6K was relatively constant. However, the kinase activity of P(70)S6K was increased and the phosphorylation of Tyr15 residue of Cdc2 was enhanced, which suggests that the kinase activity of Cdc2 is decreasing. Immunohistochemistry analysis also showed that there was a P(70)S6K transfer from nucleus to cytoplasm during spermatogenesis. During spermatogenesis, cell division of the germ cell in male mouse is decelerated; nevertheless, cell growth is enhanced. Cdc2 and P(70)S6K are involved in these two processes. It could be an alternative mechanism to prepare for future fertilization that Cdc2 is able to maintain a subtle balance between the production and growth of male germ cells by regulating P(70)S6K.
Authors:
Bing-Zhi Yu; Yu-Tong Song; Da-Hai Yu; Wen-Hui Su; Venuste Gasana; Yan-Xiao Li; Zhe Zhang
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Cell biochemistry and function     Volume:  24     ISSN:  0263-6484     ISO Abbreviation:  Cell Biochem. Funct.     Publication Date:    2006 Mar-Apr
Date Detail:
Created Date:  2006-03-06     Completed Date:  2006-05-25     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  8305874     Medline TA:  Cell Biochem Funct     Country:  England    
Other Details:
Languages:  eng     Pagination:  113-7     Citation Subset:  IM    
Copyright Information:
Copyright 2005 John Wiley & Sons, Ltd.
Affiliation:
Department of Biochemistry, China Medical University, Shenyang, People's Republic of China. ybzbiochem@yeah.net
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MeSH Terms
Descriptor/Qualifier:
Animals
Blotting, Western
CDC2 Protein Kinase / analysis,  biosynthesis*
Gene Expression Regulation, Developmental
Immunohistochemistry
Male
Maturation-Promoting Factor / physiology
Mice
Ribosomal Protein S6 Kinases, 70-kDa / analysis,  biosynthesis*
Spermatocytes / enzymology
Spermatozoa / enzymology*
Chemical
Reg. No./Substance:
EC 2.7.11.1/Ribosomal Protein S6 Kinases, 70-kDa; EC 2.7.11.22/CDC2 Protein Kinase; EC 2.7.11.22/Maturation-Promoting Factor

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