Document Detail

Increased nuclear expression of growth hormone receptor in uterine cervical neoplasms of women under 40 years old.
MedLine Citation:
PMID:  18832799     Owner:  NLM     Status:  MEDLINE    
There has been an increased incidence of cervical cancer among young women, and they tend to have a poor prognosis due to unknown reasons. We hypothesize growth hormone (GH) receptor (GHR) may be involved in the proliferation of cervical carcinoma, because GH-related neoplasms arise in various organs and the amount of GH secretion may be different according to age. GHR is normally expressed in the cell membrane and cytoplasm, while the nuclear distribution of GHR has been considered to reflect high proliferative activity of cells. We analyzed the subcellular localization of GHR by immunohistochemistry in cervical neoplasms of 55 patients (38.6 +/- 13.9 years old): 33 patients (< 40 years) and 22 patients (>or= 40 years). Nuclear expression of GHR was detected in more than 50% of neoplastic cells present in the tissue samples derived from 20 patients under 40 years (20/33, 61%), whereas less than 25% of neoplastic cells expressed GHR in their nuclei in 17 patients over 40 years (17/22, 77%). In contrast, more than 75% of neoplastic cells showed cytoplasmic GHR expression in the tissues derived from both age groups. Furthermore, the population of cells with nuclear GHR expression was high in the squamous epithelium and the stromal cells of patients under 40, but low in patients over 40. The GH-GHR signal may act at the nuclear level to promote the proliferation of uterine cervical neoplasms in young patients. We suggest the involvement of GHR in progression of uterine cervical carcinoma.
Reiko Dehari; Yoshiyasu Nakamura; Naoyuki Okamoto; Hiroki Nakayama
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Tohoku journal of experimental medicine     Volume:  216     ISSN:  1349-3329     ISO Abbreviation:  Tohoku J. Exp. Med.     Publication Date:  2008 Oct 
Date Detail:
Created Date:  2008-10-03     Completed Date:  2009-02-20     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0417355     Medline TA:  Tohoku J Exp Med     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  165-72     Citation Subset:  IM    
Department of Surgical Pathology, Kanagawa Cancer Center Hospital, Kanagawa, Japan.
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MeSH Terms
Cell Nucleus / metabolism*
Epithelium / metabolism,  pathology
Gene Expression Regulation, Neoplastic
Middle Aged
RNA, Messenger / genetics,  metabolism
Receptors, Somatotropin / genetics,  metabolism*
Reverse Transcriptase Polymerase Chain Reaction
Stromal Cells / metabolism,  pathology
Uterine Cervical Neoplasms / diagnosis,  genetics,  metabolism*,  pathology
Reg. No./Substance:
0/RNA, Messenger; 0/Receptors, Somatotropin

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