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Expression of Bcl-2 in olfactory neuroblastoma and its association with chemotherapy and survival

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Authors
Kim, Jeong-Whun; Kong, Il Gyu; Lee, Chul Hee; Kim, Dong Young; Rhee, Chae-Seo; Min, Yang-Gi; Kim, Chul Woo; Chung, Jin-Haeng
Issue Date
2008-11-07
Publisher
American Academy of Otolaryngology–Head and Neck; Elsevier
Citation
Otolaryngol Head Neck Surg 2008;139:708-12
Abstract
This study aimed to identify the prognostic value of tumor markers in olfactory neuroblastoma (ONB). STUDY DESIGN AND SETTING: Seventeen patients with ONB (23 tumor specimens) were included. Each specimen was studied for bcl-2, p53, MIC-2 by immunohistochemistry and for N-myc by chromogenic in situ hybridization. RESULTS: Twelve (70%) of 17 patients and 15 (65%) of 23 specimens showed positive reactivity for bcl-2. Of seven patients who were treated with neoadjuvant chemotherapy, one patient with diffuse bcl-2 expression achieved complete remission. Another patient without bcl-2 expression had no response to chemotherapy. Five patients who showed partial positivity achieved partial remission. Survival and bcl-2 expression tended to correlate, but it was not statistically significant (P = 0.06). All of the ONB specimens were negative for N-myc. Positive immunoreactivity for MIC-2 or p53 was found only in one specimen. CONCLUSION: Bcl-2 expression was commonly found in ONB and the immunoreactivity for bcl-2 might predict response to neoadjuvant chemotherapy. In addition, Bcl-2 expression tended to be associated with worse survival.
ISSN
0194-5998
Language
English
URI
http://hdl.handle.net/10371/3915
DOI
https://doi.org/10.1016/j.otohns.2008.03.011
https://doi.org/10.1016/j.otohns.2008.03.011
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College of Medicine/School of Medicine (의과대학/대학원)Pathology (병리학전공)Journal Papers (저널논문_병리학전공)
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