title: The expression of Wnt-1 inducible signaling pathway protein-2 in astrocytoma: Correlation between pathological grade and clinical outcome.
abstract: Wnt-1 inducible signaling pathway protein-2 (WISP-2) is a member of the CCN family, which is critical for the control of cell morphology, motion, adhesion and other processes involved in tumorigenesis. The expression pattern and clinical significance of WISP-2 in astrocytomas remains unclear. In this study, reverse transcription-polymerase chain reaction was performed to systematically investigate the expression of WISP-2 in 47 astrocytoma tissues of different pathological grades and 10 normal brain tissues. The mRNA expression levels of WISP-2 in the astrocytoma tissues were observed to be significantly higher than those in the normal brain tissues. Furthermore, the upregulation of WISP-2 was found to be associated with astrocytomas of higher pathological grades. Subsequently, 154 astrocytoma and 15 normal brain tissues were analyzed using immunohistochemistry and similar results were obtained. Univariate and multivariate survival analyses were used to determine the correlations between WISP-2 expression and overall survival (OS) and progression-free survival (PFS). The results indicated that the expression of WISP-2 was found to negatively correlate with patient PFS and OS. These results demonstrated that the WISP-2 protein is involved in the pathogenesis and progression of human astrocytomas and may serve as a malignant biomarker of this disease.
authors.affiliation: The Institute of Skull Base Surgery and Neurooncology at Hunan, Xiangya Hospital, Changsha, Hunan 410008, P.R. China.
authors.forename: Gelei
authors.initials: G
authors.lastname: Xiao
authors.affiliation: Department of Neurosurgery, Hunan Provincial Tumor Hospital, The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan 410013, P.R. China.
authors.forename: Zhi
authors.initials: Z
authors.lastname: Tang
authors.affiliation: The Institute of Skull Base Surgery and Neurooncology at Hunan, Xiangya Hospital, Changsha, Hunan 410008, P.R. China.
authors.forename: Xianrui
authors.initials: X
authors.lastname: Yuan
authors.affiliation: The Institute of Skull Base Surgery and Neurooncology at Hunan, Xiangya Hospital, Changsha, Hunan 410008, P.R. China.
authors.forename: Jian
authors.initials: J
authors.lastname: Yuan
authors.affiliation: The Institute of Skull Base Surgery and Neurooncology at Hunan, Xiangya Hospital, Changsha, Hunan 410008, P.R. China.
authors.forename: Jie
authors.initials: J
authors.lastname: Zhao
authors.affiliation: The Institute of Skull Base Surgery and Neurooncology at Hunan, Xiangya Hospital, Changsha, Hunan 410008, P.R. China.
authors.forename: Zhiping
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Department of Neurosurgery, Hunan Provincial Tumor Hospital, The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan 410013, P.R. China.
authors.forename: Zhengwen
authors.initials: Z
authors.lastname: He
authors.affiliation: The Institute of Skull Base Surgery and Neurooncology at Hunan, Xiangya Hospital, Changsha, Hunan 410008, P.R. China.
authors.forename: Jingping
authors.initials: J
authors.lastname: Liu
keywords: Wnt-1 inducible signaling pathway protein-2; astrocytoma; overall survival; progression-free survival