| Journal: |
Appl Immunohistochem Mol Morphol
Appl Immunohistochem Mol Morphol
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Volume: |
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| Abstract: |
Objectives: To find predictive biomarkers for recurrence and progression of
meningioma.
Background: Despite great advances in meningioma treatment, the prognosis remained
unfavorable due to the high recurrence rate.
Methods: In this study, we evaluated the immunohistochemical expression of
FOXM1, MMP-9, and Ki67 in 50 cases of intracranial meningioma to detect its
potential role in meningioma progression, recurrence, and patients’ survival.
Results: StrongFOXM1 expression was detected in 20% of the cases and was
significantly associated with meningioma grade (P= 0.002) and peritumoral brain
edema (PTBE; P<0.001). Strong MMP-9 expression was noted in 32% of the cases
and was significantly associated with meningioma grade and PTBE (P<0.001,
P<0.001, respectively). High Ki67 was noted in 50% and significantly associated
with tumor grade and PTBE (P<0.001, P= 0.002, respectively). The follow-up period
revealed that meningiomas with strong FOXM1, strong MMP-9, and high Ki67
expression were associated with tumor recurrence, shorter OS, and recurrence-free
survival. Furthermore, up-regulation of FOXM1 and MMP-9 expression had a
significant relation with poor clinical response to the therapy (P= 0.010, P= 0. 001,
respectively). However, high Ki67 cases were more sensitive to clinical therapy (P=
0.005).
Conclusion: Strong FOXM1, strong MMP-9, and high Ki67 in meningiomas indicate
highly aggressive tumors with a shortened survival rate, dismal outcome, and high
risk of recurrence after the standard protocol of therapy.
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