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SPARC and Vav3 Expression in Meningioma: Factors Related to Prognosis

Published online by Cambridge University Press:  23 September 2014

Jie Jiang ,
Yuejia Song ,
Nan Liu ,
Chengjun Lin ,
Shiguang Zhao ,
Yu Sun ,
Zhen Zhang ,
Xiang Fang  and
Jiping Qi
Jie Jiang
Affiliation:
Department of Pathology, First Affiliated Hospital of Harbin Medical University, Harbin, PR China
Yuejia Song
Affiliation:
Department of Digestive System, First Affiliated Hospital of Harbin Medical University, Harbin, PR China
Nan Liu
Affiliation:
Department of Pathology, First Affiliated Hospital of Harbin Medical University, Harbin, PR China
Chengjun Lin
Affiliation:
Department of Anesthesiology, Fourth Affiliated Hospital of Harbin Medical University, Harbin, PR China
Shiguang Zhao
Affiliation:
Department of Neurosurgery, First Affiliated Hospital of Harbin Medical University, Harbin, PR China
Yu Sun
Affiliation:
Department of Pathology, First Affiliated Hospital of Harbin Medical University, Harbin, PR China
Zhen Zhang
Affiliation:
Department of Pathology, First Affiliated Hospital of Harbin Medical University, Harbin, PR China
Xiang Fang
Affiliation:
Department of Pathology, First Affiliated Hospital of Harbin Medical University, Harbin, PR China
Jiping Qi*
Affiliation:
Department of Pathology, First Affiliated Hospital of Harbin Medical University, Harbin, PR China
*
Department of Pathology, First Affiliated Hospital of Harbin Medical University, 23 Youzheng Street, Nangang District, Harbin 150001, PR China. Email: [email protected].
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Abstract

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Background:

Meningiomas account for approximately 24-30% of primary intracranial neoplasms. Histopathologic grade and degree of resection are two major prognostic factors. The aim of this study was to determine the factors associated with the prognosis of meningioma.

Methods:

We used immunohistochemistry to analyze the expression levels of Vav3, SPARC, p-Akt, cyclin D1, and Ki-67 in 287 meningiomas of all grades.

Results:

The expression of Vav3, SPARC, p-Akt, cyclin D1, and Ki- 67 significantly increased with meningioma grade (p<0.01), and was higher in brain-invasive meningiomas compared to non-invasive meningiomas (WHO grade I) (p<0.05). Furthermore, the expression of Vav3, p-Akt, and Ki-67 was higher in recurrent meningiomas compared to non-recurrent meningiomas (WHO grade I) (p<0.05).

Conclusion:

The expression of Vav3, SPARC, p-Akt, cyclin D1, and Ki-67 in meningiomas appears to correlate with meningioma invasiveness, aggressiveness, and recurrence.

Résumé

RÉSUMÉ Contexte:

les méningiomes constituent à peu près 24 à 30% des néoplasies intracrâniennes primitives. Le grade histopathologique et le degré de résection de la tumeur sont deux facteurs de pronostic importants. Le but de cette étude était de déterminer les facteurs associés au pronostic du méningiome.

Méthode:

nous avons utilisé l'immunohistochimie pour analyser le niveau d'expression de Vav3, SPARC, p-AKt, cycline D1 et Ki-67 dans 287 méningiomes de tout grade.

Résultats:

L'expression de Vav3, SPARC, p-Akt, cycline D1 et Ki-67 augmentait significativement avec l'augmentation du grade de la tumeur (p ˂ 0,01) et elle était plus élevée dans les méningiomes envahissants que dans les méningiomes non envahissants (OMS grade 1) (p ˂ 0,05). De plus, l'expression de Vav3, p-Akt et Ki-67 était plus élevée dans les méningiomes récurrents que dans les méningiomes non récurrents (Grade I de l'OMS) (p ˂ 0,05).

Conclusion:

L'expression de Vav3, SPARC, p-Akt, cycline D1 et Ki-67 dans les méningiomes semble corrélée au caractère invasif et agressif du méningiome ainsi qu'à sa récurrence.

Type
Original Article
Information
Canadian Journal of Neurological Sciences , Volume 40 , Issue 6 , November 2013 , pp. 814 - 818
Copyright
Copyright © The Canadian Journal of Neurological 2013

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