简介：Objective:Meningiomasareneoplasmsthatarisefromthemeningesofthecentralnervoussystem(CNS).Theyconstituteabout25.6%ofCNStumorsdiagnosedinEgypt.Somemorphologicalvariantsofmeningiomasdisplayaggressivebehavior,leadingtobrain-invasivegrowthpattern.Althoughmeningiomasareusuallytreatedbycompletesurgicalexcision,theriskofpostoperativerecurrenceremains.Hence,additionalbiomarkersforpredictingaggressivebehaviormustbediscovered.Thisstudyaimstoexploretheclinicalandbiologicalrelevanceoftheproteinexpressionlevelsofβ-cateninandgalectine-3inmeningiomaandtounderstandthepathobiologyofthisneoplasm.Methods:Thisretrospectivestudywascarriedouton153casesofmeningiomabyusingtissuemicroarraysandimmunohistochemistryforβ-cateninandgalectine-3.Results:Highβ-cateninexpressionwassignificantlyassociatedwithtransitionalandmeningiotheliomatousmeningiomas,lowtumorgrade,lowrecurrencerate,andlowincidenceofbraininvasion.Meanwhile,highgalectin-3expressionwasassociatedwithbraininvasion,recurrence,hightumorgrade,andtumortype.Logisticregressionanalysisindicatedthatamongallvariablesincludedinthemodel,β-cateninandgalactin-3expressionlevelsweresignificantpredictorsoftumorrecurrence(P<0.001).Conclusions:Galectin-3andβ-cateninareinvolvedinmeningiomarecurrencebutnotinbraininvasion.Thesemoleculescouldbeimportantpotentialtherapeutictargetsandpredictorsformeningiomas.