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Prognostic and predictive value of c-erbB2 overexpression in osteogenic sarcoma
Background: Osteogenic sarcoma (OS) is a highly malignant tumor of the bone. There are few reports in the literature regarding determination of c-erb B-2 (HER-2/neu) expression in cases of OS and also the results are quite variable. Aim: The present study was undertaken to correlate the expression o...
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Published in: | Journal of cancer research and therapeutics 2006-01, Vol.2 (1), p.20-23 |
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Main Author: | |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that cite this one |
Online Access: | Get full text |
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Summary: | Background: Osteogenic sarcoma (OS) is a highly malignant tumor of the
bone. There are few reports in the literature regarding determination
of c-erb B-2 (HER-2/neu) expression in cases of OS and also the results
are quite variable. Aim: The present study was undertaken to correlate
the expression of c-erbB2 with the survival of patients of OS.
Settings and Design: A retrospective study of cases of OS, in which the
expression of c-erbB-2 by immunohistochemistry (IHC) was studied and
correlated with the survival rate of the patients. Materials and
Methods: Out of a total of 49 cases, proper follow up data in the form
of total and disease free survival was available in only 20 cases. IHC
for c-erb-B2 was carried out in these 20 cases. Results: The staining
pattern was as follows: no staining in 3 cases, 1 + in 5 cases, 2 + in
3 cases, 3 + in 3 cases and 4 + cytoplasmic positivity in 6 cases.
Statistical analysis: Spearman rank correlation test was used to
correlate the intensity of cytoplasmic staining of c-erbB-2 with
survival rate of the patients, response to chemotherapy and metastasis.
Conclusions: Previous studies have shown that c-erbB-2/ HER-2 is an
independent prognostic factor in osteogenic sarcoma, but in the present
study, its expression was not seen to be correlating with survival rate
of the patients. Therefore, further studies are needed to reach a
consensus regarding the reliability of c-erbB-2 as an independent
prognostic factor in OS. |
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ISSN: | 0973-1482 1998-4138 |
DOI: | 10.4103/0973-1482.19770 |