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ID 34983
file
creator
Nabika, Shinya
Kiya, Katsuzo
Satoh, Hideki
Mizoue, Tatsuya
Kondo, Hiroshi
Katagiri, Masaya
Nishisaka, Takashi
subject
EGFR
p27
p21
High-grade astrocytoma
NDC
Medical sciences
abstract
The goal of this study was to investigate the relationship among immunohistochemical expression of epithelial growth factor receptor (EGFR) family proteins, p21, p27 and prognosis in patients with high-grade astrocytoma. Expression of EGFR family proteins (c-erbB-1, c-erbB-2, c-erbB-3, c-erbB-4), p21 and p27 and Ki-67 labeling index (LI) were studied in 59 samples of high-grade astrocytoma. Expression of protein levels was analyzed by immunohistochemical staining of formalin-fixed and paraffin-embedded sections. Results were analyzed in relation to age, gender and survival. Overexpression of c-erbB-1, c-erbB-2, c-erbB-3 and c-erbB-4 was found in 40 (67.8%), 17 (28.8%), 3 (5.1 %) and 42 (75.0%) samples, respectively. Similarly, low expression of p21 and p27 was observed in 50 (84.8%) and 27 (45.8%) samples. Mean Ki-67 LI was 17.3 ± 1.1. Cox multiple regression analysis showed that c-erbB-1 (Hazard rate(HR) 1.57, 95% Confidence interval (Cl) 1.08-2.36; p=0.017), c-erbB-4 (HR 1.79, 95%CI 1.20- 2. 7 4; p=0.004) and p27 (HR 0.50, 95%CI 0.30-0.82; p=0.006) were significantly associated with survival. High expression of c-erbB-1 and c-erbB-4 and low expression of p27 were associated with poor prognosis in these patients.
journal title
Hiroshima Journal of Medical Sciences
volume
Volume 59
issue
Issue 4
start page
65
end page
70
date of issued
2010-12
publisher
Hiroshima University Medical Press
issn
0018-2052
ncid
language
eng
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
rights
(c) Hiroshima University Medical Press.
department
Graduate School of Biomedical Science
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