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Updated: Jul 13, 2026
08:43
A Unified Methodological Framework for Vestibular Schwannoma Research
Published on: June 20, 2017
Cyclin D1 expression and histopathologic features in vestibular schwannomas
Luis Lassaletta1, Mercedes Patrón, Laura Del Río
1Department of Otolaryngology, Laboratorio Oncogenetica Molecular, La Paz University Hospital, Madrid, Spain. luikilassa@yahoo.com
Summary
Cyclin D1 expression is found in about half of vestibular schwannomas and correlates with tumor side and degenerative changes. Negative cyclin D1 expression is linked to longer deafness duration and poorer hearing.
Area of Science:
- Neuro-oncology
- Molecular pathology
Background:
- Vestibular schwannomas are typically benign tumors arising from Schwann cells of the vestibulocochlear nerve.
- Understanding the molecular mechanisms driving vestibular schwannoma growth is crucial for diagnosis and treatment.
Purpose of the Study:
- To investigate the expression of cyclin D1 in vestibular schwannomas.
- To determine the association between cyclin D1 expression and clinicopathologic and radiologic features.
Main Methods:
- Immunohistochemistry was used to assess cyclin D1 expression in 21 vestibular schwannoma samples.
- Histopathologic features (Antoni pattern, nuclear/stromal changes) and clinical/radiologic data were analyzed.
Main Results:
- Cyclin D1 expression was detected in 52% of vestibular schwannomas.
- Expression was significantly higher in right-sided tumors and those with nuclear degenerative changes.
- Patients with negative cyclin D1 expression exhibited longer deafness duration and worse 2,000-Hz hearing thresholds.
Conclusions:
- Cyclin D1 expression appears to play a role in vestibular schwannoma development.
- Further research is needed to elucidate the impact of histopathologic and immunohistochemical factors on tumor biology.
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