Results 191 to 200 of about 75,040 (259)

Chromosomal and immune dysregulation underlying granular mitosis in glioblastoma

open access: yesBrain Pathology, EarlyView.
Granular mitosis (GM) morphology is linked to PI3K/PTEN pathway alterations, chromosomal disorganization, and impaired innate immunity. Cells exhibiting GM morphology are associated with localized immune responses within their immediate spatial microenvironment.
Rachel Barboza   +8 more
wiley   +1 more source

Interlaboratory performance testing on EPIC v2.0 CNS tumor profiling demonstrates high reproducibility of tumor classification but reveals the need for harmonized copy number variation reporting

open access: yesBrain Pathology, EarlyView.
Using the Infinium MethylationEPIC v2.0 array and Heidelberg Brain Tumor Classifier v12.8, 24 international laboratories achieved highly reproducible CNS tumor classification (97.9% correct; median β‐correlation r = 0.99), while copy number variation interpretation showed substantial interlaboratory variability, highlighting the need for harmonized CNV
Katrin Mauch‐Mücke   +50 more
wiley   +1 more source

Molecular heterogeneity and prognostic biomarkers in primary meningeal melanocytic tumors

open access: yesBrain Pathology, EarlyView.
Integrated molecular profiling reveals biological heterogeneity among primary meningeal melanocytic tumors, identifying intermediate‐grade PMMT subgroups with distinct recurrence risk. Molecular alterations including SF3B1 mutations and chromosome 8q gains support prognostic stratification, while PRKAR1A alterations and chromosome 17/21q losses aid ...
Rosina Paterra   +6 more
wiley   +1 more source

PTEN homozygous deletion is a negative prognostic factor in tumor treating fields‐treated glioblastoma, IDH wildtype patients

open access: yesBrain Pathology, EarlyView.
In a molecularly confirmed cohort of 64 newly diagnosed, TTFields‐treated glioblastomas, IDH‐wildtype, homozygous PTEN deletion was associated with markedly shorter overall survival (368 vs. 603 days) and remained an independent adverse prognostic factor.
Jakob Nückles   +15 more
wiley   +1 more source

Gliomas with pleomorphic and pseudopapillary features (GPAP) are circumscribed tumors with targetable mutations, prolonged survival, and frequent tumor predisposition

open access: yesBrain Pathology, EarlyView.
DNA methylation profiling identifies GPAP as a distinct circumscribed glioma with a characteristic expansive, multicystic radiological appearance, pleomorphic and pseudopapillary histology, a recognizable CNV profile, druggable molecular alterations, and recurrent cancer predisposition syndromes.
Alberto Picca   +35 more
wiley   +1 more source

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