A single-centre observational study of 124 surgically managed glioma patients: molecular subtyping and its correlation with clinico-radiological profile

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dc.contributor.authorSingh, Ashutoshen_US
dc.contributor.authorSingh, Suyashen_US
dc.contributor.authorAgrawal, Saritaen_US
dc.contributor.authorVerma, Jyotien_US
dc.contributor.authorSingh, Shalinien_US
dc.contributor.authorMisra, Prabhakaren_US
dc.contributor.authorJaiswal, Awadhesh Kumaren_US
dc.contributor.authorBehari, Sanjayen_US
dc.contributor.authorJaiswal, Sushilaen_US
dc.date.accessioned2020-11-18T10:05:34Z
dc.date.available2020-11-18T10:05:34Z
dc.date.issued2020-09
dc.description.abstractBackground: The World Health Organization (WHO) 2016 classification incorporated molecular subtyping in glioma, highlighting the diagnostic and prognostic significance. The study aims to determine the isocitrate dehydrogenase (IDH-1) gene, α-thalassemia/mental retardation syndrome X-linked (ATRX) gene, and tumor suppressor gene-53 (p53) mutation in glioma and their correlation with various clinical and radiological parameters.Methods: In this prospective observational study, histopathological slides of glioma (2017-2018), were analyzed for IDH-1, ATRX and p53 mutations and their correlation with various clinical and radiological parameters.Results: IDH-1 mutation was found in 48 (38.7%), ATRX loss in 38 (30.6%) and p53 mutation in 40 (32.5%) patients. The expression of IDH-1 was significantly higher (43.7%) in adults; however, no significant difference was seen with gender. Also 51.2% of patients, who presented with seizures, showed IDH-1 expression; and 27.7% of patients, who had neurological deficit also showed IDH-1 expression. IDH-1 expression was high in glioma located at insula (73.3%) and parietal lobe (71.4%); while ATRX loss was seen in glioma located at insula (80%). Intraventricular glioma characteristically lacks all three markers: IDH-1 expression, p53 overexpression and ATRX loss. IDH-1 expression and p53 overexpression was seen mainly in diffuse fibrillary astrocytoma, oligodendroglioma, anaplastic astrocytoma and glioblastoma.Conclusions: Molecular subtyping is of paramount importance in glioma management. IDH-1 mutation is commonly observed in adults and patients presenting with seizures. The duration of symptoms correlates with IDH-1 and ATRX mutations. Hypothalamic tumors lack all three mutations.en_US
dc.identifier.affiliationsDepartment of Pathology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, Indiaen_US
dc.identifier.affiliationsDepartment of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, Indiaen_US
dc.identifier.affiliationsDepartment of Medical Genetics, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, Indiaen_US
dc.identifier.affiliationsDepartment of Radiotherapy, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, Indiaen_US
dc.identifier.affiliationsDepartment of Biostatistics and Health Informatics, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, Indiaen_US
dc.identifier.citationSingh Ashutosh, Singh Suyash, Agrawal Sarita, Verma Jyoti, Singh Shalini, Misra Prabhakar, Jaiswal Awadhesh Kumar, Behari Sanjay, Jaiswal Sushila. A single-centre observational study of 124 surgically managed glioma patients: molecular subtyping and its correlation with clinico-radiological profile. International Surgery Journal. 2020 Sep; 7(9): 3047-3055en_US
dc.identifier.issn2349-3305
dc.identifier.issn2349-2902
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/213326
dc.languageenen_US
dc.publisherMedip Academyen_US
dc.relation.issuenumber9en_US
dc.relation.volume7en_US
dc.source.urihttps://dx.doi.org/10.18203/2349-2902.isj20203792en_US
dc.subjectIsocitrate dehydrogenase-1 mutationen_US
dc.subjectGliomaen_US
dc.subjectImmunohistochemistryen_US
dc.subjectα-thalassemia/mental retardation syndrome X-linked geneen_US
dc.subjectTumor suppressor gene-53en_US
dc.subjectAstrocytic tumorsen_US
dc.titleA single-centre observational study of 124 surgically managed glioma patients: molecular subtyping and its correlation with clinico-radiological profileen_US
dc.typeJournal Articleen_US
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