Document Detail


Mitosis and the presence of binucleate cells among glomerular podocytes in diseased human kidneys.
MedLine Citation:
PMID:  7617119     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Podocytes are highly differentiated cells that appear to be postmitotic. However, it is unclear whether cell division or the proliferation of podocytes takes place in the setting of glomerular injury. In this study, we analyzed the presence of mitotic figures and of binucleate or multinucleate podocytes in diseased human kidneys by light and electron microscopy. Among the 164 cases analyzed, mitotic figures in podocytes were found in only one cell, in a case of focal and segmental glomerulosclerosis, and 6 cases provided evidence of two or more nuclei in a single podocyte. Serial sections by light microscopy confirmed that the nuclei in multinucleate cells were separate and of approximately the same size. Electron-microscopic analysis of the binucleate podocytes revealed hypertrophy and effacement of foot processes. These findings indicate that, in human podocytes, mitosis without cytokinesis (cell division) results in binucleate cells in cases of glomerular injury.
Authors:
M Nagata; Y Yamaguchi; Y Komatsu; K Ito
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Nephron     Volume:  70     ISSN:  0028-2766     ISO Abbreviation:  Nephron     Publication Date:  1995  
Date Detail:
Created Date:  1995-08-24     Completed Date:  1995-08-24     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0331777     Medline TA:  Nephron     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  68-71     Citation Subset:  IM    
Affiliation:
Department of Pediatric Nephrology, Tokyo Women's Medical College, Japan.
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MeSH Terms
Descriptor/Qualifier:
Biopsy
Cell Nucleus / ultrastructure
Epithelium / physiopathology,  ultrastructure
Humans
Kidney Diseases / pathology*,  physiopathology*
Kidney Glomerulus / physiopathology,  ultrastructure*
Microscopy, Electron
Mitosis / physiology*

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


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