Document Detail


Intracellular position of G2/M-phase nuclei in neoplastic and non-neoplastic pseudostratified glands suggests the occurrence of interkinetic nuclear migration.
MedLine Citation:
PMID:  23381606     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
It has been established that nuclear pseudostratification of the neural epithelium in vertebral embryos is caused by interkinetic nuclear migration, a cell cycle-dependent regulation of nuclear movement, during which the G2/M-phase nuclei move apically before returning basally in the G1/S phase. Here we demonstrate the cell cycle-related nuclear location characteristic of interkinetic nuclear migration in human neoplastic and non-neoplastic pseudostratified glands. Immunohistochemical analysis with phosphohistone H3 (a G2/M-phase marker) and Ki67 was performed on fetal tissues, proliferative-phase endometrium (5 cases), and colonic adenomas (12 cases). In all cases, G2/M nuclei were significantly located apically, whereas Ki67-positive nuclei were widely distributed along the basal-apical axis. In the proliferating zone of the normal colon mucosa, elongated nuclei in the G2/M phase were occasionally found on the apical side of the cells. These results suggest that the interkinetic nuclear migration occurs in association with cell proliferation in both neoplastic and non-neoplastic glands.
Authors:
Takashi Kishimoto; Kazunori Fugo; Takako Kiyokawa
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-2-5
Journal Detail:
Title:  Medical molecular morphology     Volume:  -     ISSN:  1860-1499     ISO Abbreviation:  Med Mol Morphol     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-2-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101239023     Medline TA:  Med Mol Morphol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8670, Japan, tkishi@faculty.chiba-u.jp.
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