COX2 expression is associated with preoperative tumor volume but not with volumetric tumor growth in vestibular schwannoma

Neurological Research and Practice

Jens Schittenhelm¹  Vanessa Ries²  Marcos Tatagiba²  Felix Behling²  Elisa Suhm²  Ghazaleh Tabatabai³  Vítor Moura Gonçalves⁴ 

[1] Center for Neuro-Oncology, Comprehensive Cancer Center Tübingen – Stuttgart, University Hospital Tübingen, Eberhard-Karls-University Tübingen, Tübingen, Germany;Department of Neuropathology, University Hospital Tübingen, Eberhard-Karls-University Tübingen, Tübingen, Germany;Department of Neurosurgery, University Hospital Tübingen, Eberhard-Karls-University Tübingen, Hoppe-Seyler Street 3, Tübingen, Germany;Center for Neuro-Oncology, Comprehensive Cancer Center Tübingen – Stuttgart, University Hospital Tübingen, Eberhard-Karls-University Tübingen, Tübingen, Germany;Department of Neurosurgery, University Hospital Tübingen, Eberhard-Karls-University Tübingen, Hoppe-Seyler Street 3, Tübingen, Germany;Center for Neuro-Oncology, Comprehensive Cancer Center Tübingen – Stuttgart, University Hospital Tübingen, Eberhard-Karls-University Tübingen, Tübingen, Germany;Department of Neurology and Interdisciplinary Neuro-Oncology, University Hospital Tübingen, Eberhard-Karls-University Tübingen, Tübingen, Germany;Hertie Institute for Clinical Brain Research, Tübingen, Germany;German Cancer Consortium (DKTK), DKFZ partner site Tübingen, Tübingen, Germany;Department of Neurosurgery, University Hospital Tübingen, Eberhard-Karls-University Tübingen, Hoppe-Seyler Street 3, Tübingen, Germany;Faculty of Medicine, University of Porto, 4200-319, Porto, Portugal;

关键词: Vestibular schwannoma;    Acoustic neuroma;    COX2;    Tissue microarray;    MIB1;    Volumetric tumor growth;   

DOI  :  10.1186/s42466-021-00111-6

来源: Springer

【 摘 要 】

ObjectiveVestibular schwannomas (VS) are benign slow growing tumors arising from the vestibular nerve. The role of cyclooxygenase 2 (COX2) in tumor development of growth has been addressed in a few studies with contradictory results and suggestions. We recently analyzed the immunohistochemical expression of COX2 in 1044 VS samples and described an association of higher COX2 expression with proliferation but found no influence by regular intake of acetylsalicylic acid. We now collected volumetric radiographic data of the preoperative tumor volume and growth to further test the role of COX2 in VS growth.MethodsPreoperative images of 898 primary sporadic vestibular schwannomas were assessed, and sufficient preoperative imaging was used for the volumetric measurement preoperative tumor volume (n = 747) and preoperative relative tumor growth (n = 171). Clinical parameters and results of the immunohistochemical expression of COX2 and MIB1 in resected tumor tissue samples were obtained from our prior study. ANOVA, CART-analysis and multivariate nominal logistic regression were used for statistical analysis.ResultsLarger preoperative tumor volumes were observed with tumors of younger patients (p = 0.0288) and with higher COX2 expression scores (p < 0.0001). Higher MIB1 expression was associated with smaller tumors (p = 0.0149) but with increased radiographic tumor growth (p = 0.0003). Patients of older age had tumors with slower growth rates (p = 0.0311). In the multivariate analysis only MIB1 expression was an independent significant factor regarding tumor growth (p = 0.0002).ConclusionsHigher expression of COX2 in schwannoma is associated with an increased preoperative tumor volume but not with radiographic tumor growth over time.

【 授权许可】

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