Publication:
Clinicopathological variables, immunophenotype, chromosome 1p36 loss and tumour recurrence of 247 meningiomas grade I and II

Simple item page
dc.contributor.authorRuiz, Juanes
dc.contributor.authorMartínez, Armandoes
dc.contributor.authorHernández, Susana
dc.contributor.authorZimman, Horacio
dc.contributor.authorFerrer, Milagros
dc.contributor.authorFernández, Cristina
dc.contributor.authorSáez, Mamen
dc.contributor.authorLópez-Asenjo, José A.
dc.contributor.authorSanz Ortega, Julián
dc.date.accessioned2015-01-20T12:06:50Z
dc.date.available2015-01-20T12:06:50Z
dc.date.issued2010
dc.description.abstractThe WHO grading scheme distinguishesbenign (grade I), atypical (grade II) and anaplastic(grade III) meningiomas. Both atypical and anaplasticmeningiomas exhibited an overall increased rate ofrecurrence, but between 15-20% benign meningiomaswill also exhibit an unfavourable clinical course withrecurrence before 10 years despite aggressive surgery.We investigated 247 cases of meningiomas grade I andII. The immunohistochemical expression of 30 differentmolecular biomarkers of cell adhesion molecules, cell-cycle and apoptosis regulators and checkpoints wasanalyzed. We also determined apoptosis by in-situhybridization (APOPDETEK™) and loss ofchromosome 1p36 by FISH. The study revealed astatistically significant co-variation (p<0.05) betweenmeningiomas grade II associated with severalclinicopathological features (Simpson grade of clinicalresection, necrosis, nuclear atypia, macronucleoli,transition to small cell, sheet-like growth, highcellularity), increased expression of several biomarkersof tumour proliferation (Cyclin A, Cyclin E, MIB-1 orMDM2), proteases (Cathepsin D) or cell-adhesion(CD44) and lower expression of progesterone receptorsthan meningiomas grade I. The presence of Psammomabodies or the location at convexity were protectiveprognostic factors for tumour recurrence while highcellularity and early age of onset (<57 year-old) wereindicators of increased recurrence risk. The expressionof COX-2, γ-catenin, Topoisomerase IIa, VEGF andMIB-1 was significantly higher in the cohort of recurrentmeningiomas. Meningiomas with chromosome 1p36 lossshowed a higher recurrence rate (33.3%) than meningiomas with normal chromosome 1p36 (18%).Increased COX-2 expression in recurrent meningiomamay also suggest a putative role of COX-2 inhibitors asa chemopreventive treatment for recurrence.en_EN
dc.formatapplication/pdfes
dc.format.extent9es
dc.identifier.issn0213-3911es
dc.identifier.urihttp://hdl.handle.net/10201/42590
dc.languageenges
dc.publisherMurcia : F. Hernándezes
dc.relation.ispartofHistology and histopathologyes
dc.rightsinfo:eu-repo/semantics/openAccesses
dc.subjectMeningiomaes
dc.subjectImmunohistochemicales
dc.subject.other616.8 - Neurología. Neuropatología. Sistema nerviosoes
dc.titleClinicopathological variables, immunophenotype, chromosome 1p36 loss and tumour recurrence of 247 meningiomas grade I and IIes
dc.typeinfo:eu-repo/semantics/articlees
dspace.entity.typePublicationes
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Clinicopathological variables immunophenotype chromosome 1p36 loss and.pdf
Size:
1.63 MB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Histology and histopathology Vol.25, nº3 (2010)