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23 October 2018 : Clinical Research  

High Expression of PTPN3 Predicts Progression and Unfavorable Prognosis of Glioblastoma

Yu Wang1BC, Yan Su2DE, Zhiling Ji3EF, Zhonghua Lv4ABCDEFG*

DOI: 10.12659/MSM.911531

Med Sci Monit 2018; 24: CLR7556-7562


BACKGROUND: PTPN3 was demonstrated to be involved in the progression of several types of cancers, such as gastric adenocarcinoma, lung cancer, and intrahepatic cholangiocarcinoma. However, its clinical significance in glioblastoma (GBM) has not been elucidated.

MATERIAL AND METHODS: We investigated the expression of PTPN3 in 95 cases of GBM with immunohistochemistry and in 8 pairs of fresh GBMs and their adjacent tissues with qualitative polymerase chain reaction. Moreover, the correlation between PTPN3 and clinicopathological factors was evaluated by chi-square test. The prognostic value of PTPN3 was investigated with univariate analysis and multivariate analysis. With MTT assay and Transwell assay, the oncogenic functions of PTPN3 in GBM proliferation and invasion were further investigated.

RESULTS: Expression of PTPN3 in GBM tissues was significantly higher than in their corresponding adjacent tissues. High expression of PTPN3 was significantly associated with unfavorable prognosis of GBM. Moreover, in GBM cell lines, PTPN3 promoted cell proliferation and invasion, and the PTP common inhibitor pervanadate suppressed GBM proliferation and invasion.

CONCLUSIONS: Our experiments show that PTPN3 is an independent prognostic factor in GBM and indicated that postoperative detection of PTPN3 can be used to identify high-risk patients and guide individual treatment.

Keywords: Glioblastoma, Prognosis, Protein Tyrosine Phosphatase, Non-Receptor Type 3



01 August 2022 : Editorial  

Editorial: Long-Term Effects of Symptomatic and Asymptomatic SARS-CoV-2 Infection in Children and the Changing Pathogenesis of Common Childhood Viruses Driven by the COVID-19 Pandemic

Dinah V. Parums
Science Editor, Medical Science Monitor, International Scientific Information, Inc., Melville, NY, USA

DOI: 10.12659/MSM.937927

Med Sci Monit 2022; 28:e937927

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750