Clinical and molecular characteristics of HNSCC patients with brain metastases: a retrospective study.

Details

Serval ID
serval:BIB_E4036F0A039E
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Clinical and molecular characteristics of HNSCC patients with brain metastases: a retrospective study.
Journal
European Archives of Oto-rhino-laryngology
Author(s)
Bulut O.C., Lindel K., Hauswald H., Brandt R., Klauschen F., Wolf J., Wolf T., Plinkert P.K., Simon C., Weichert W., Stenzinger A.
ISSN
1434-4726 (Electronic)
ISSN-L
0937-4477
Publication state
Published
Issued date
2014
Volume
271
Number
6
Pages
1715-1722
Language
english
Notes
Publication types: Journal ArticlePublication Status: ppublish
Abstract
Among the metastasis patterns of head and neck squamous cell carcinoma (HNSCC), intracranial spread is a rare but dreaded event. To date only very few cases have been reported and clinical and molecular data are sparse. We screened our archives for HNSCC patients from 1992 to 2005 who were diagnosed with brain metastases (BM). For retrospective analysis, all clinico-pathological data including disease-free survival (DFS), local progression-free survival (LPFS), and overall survival (OS) were compiled. Additionally, we assessed the mutational status of the TP53 gene and the prevalence of HPV serotypes by PCR and Sanger sequencing. Immunohistochemistry was applied to detect p16INK4A expression levels as surrogate marker for HPV infection. The prevalence rate of BM in our cohort comprising 193 patients with advanced HNSCC was 5.7 %. Of 11 patients with BM, 3 were female and 9 were male. Seven of the primary tumors were of oropharyngeal origin (OPSCC). LPFS of the cohort was 11.8 months, DFS was 12.1 months and OS was 36.0 months. After the diagnosis of BM, survival was 10.5 months. Five tumors showed a mutation in the TP53 gene, while five of the seven OPSCC tumors had a positive HPV status displaying infection with serotype 16 in all cases. Compared with patients who harbored TP53wt/HPV-positive tumors, patients with TP53 mutations showed a poor prognosis. Compared with the whole cohort, the interval between diagnosis of the primary and the detection of BM was prolonged in the HPV-infected OPSCC subgroup (26.4 vs. 45.6 months). The prognosis of HNSCC patients with BM is poor. In our cohort, most tumors were OPSCC with the majority being HPV positive. Our study points toward a putatively unusual metastatic behavior of HPV-positive OPSCC.
Pubmed
Web of science
Create date
14/02/2014 16:02
Last modification date
20/08/2019 16:07
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