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Updated: Oct 3, 2025

Fluorescence-Based Measurements of Phosphatidylserine/Phosphatidylinositol 4-Phosphate Exchange Between Membranes
Published on: March 14, 2021
Overexpression of phosphatidylethanolamine-binding protein 4 (PEBP4) associates with recurrence of meningiomas
Ren-Qiang Huang1, Feng Chen2, Ying-Bo Jiang3
1Department of Neurosurgery, The First Naval Hospital of Southern Theater Command, Zhanjiang 524005, China.
Background And Purpose:
Abnormal expression of phosphatidylethanolamine-binding protein 4 (PEBP4) has been identified in various types of malignant tumors. In the present study, we investigated the expression of PEBP4 in meningioma cases and examined whether PEBP4 expression was correlated with outcomes among these patients.
Materials And Methods:
The expression levels of PEBP4 and Ki-67 in human meningioma tissues from 65 patients were evaluated by immunohistochemical staining. The correlation between PEBP4 immunoreactivity in meningioma samples and patients' clinical outcomes was examined using the Kruskal-Wallis correlation test. The prognostic value of PEBP4 expression in meningiomas patients also was investigated.
Results:
Immunohistochemical analysis revealed up-regulated PEBP4 expression in both atypical and anaplastic meningiomas compared with classical meningiomas (13.38 ± 4.19% vs. 3.64 ± 2.04%, P < 0.001). PEBP4 immunoreactivity in meningioma samples was closely correlated with that for Ki-67 (Spearman r = 0.7922, P < 0.0001). PEBP4 expression was also associated with tumor differentiation grade and clinical recurrence (P < 0.05). Multivariate regression analysis showed with high PEBP4 expression was associated with a longer recurrence-free survival (hazard ratio=0.252, 95% confidence interval: 0.067-0.940, P = 0.040).
Conclusion:
PEBP4 may play an important role in the progression of meningioma, as high PEBP4 expression was associated with a higher pathological grade of meningioma. Moreover, PEBP4 expression may be a meaningful prognostic biomarker in meningioma.
Insights
High phosphatidylethanolamine-binding protein 4 (PEBP4) expression correlates with increased meningioma grade and recurrence risk. PEBP4 may serve as a prognostic biomarker for meningioma patients.
Area of Science:
- Neuro-oncology
- Molecular Pathology
- Cancer Biomarkers
Background:
- Abnormal phosphatidylethanolamine-binding protein 4 (PEBP4) expression is linked to various cancers.
- The role of PEBP4 in meningioma pathogenesis and prognosis is not well understood.
Purpose of the Study:
- To investigate PEBP4 expression in meningioma tissues.
- To determine the correlation between PEBP4 expression and clinical outcomes in meningioma patients.
Main Methods:
- Immunohistochemical staining was used to evaluate PEBP4 and Ki-67 expression in 65 meningioma samples.
- Statistical analyses, including Kruskal-Wallis and multivariate regression, were employed to assess correlations and prognostic value.
Main Results:
- PEBP4 expression was significantly elevated in atypical and anaplastic meningiomas compared to classical types.
- PEBP4 levels strongly correlated with Ki-67 expression, tumor grade, and clinical recurrence.
- High PEBP4 expression was associated with longer recurrence-free survival.
Conclusions:
- PEBP4 plays a role in meningioma progression and is linked to higher pathological grades.
- PEBP4 expression is a potential prognostic biomarker for meningioma patients.
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