PMID- 35453544 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220716 IS - 2227-9059 (Print) IS - 2227-9059 (Electronic) IS - 2227-9059 (Linking) VI - 10 IP - 4 DP - 2022 Mar 29 TI - EGFR Amplification Is a Phenomenon of IDH Wildtype and TERT Mutated High-Grade Glioma: An Integrated Analysis Using Fluorescence In Situ Hybridization and DNA Methylome Profiling. LID - 10.3390/biomedicines10040794 [doi] LID - 794 AB - Gliomas are the most common intrinsic brain tumors in adults, and in accordance with their clinical behavior and patients' outcome, they are graded by the World Health Organization (WHO) classification of brain tumors. One very interesting candidate for targeted tumor therapy may be epidermal growth factor receptor (EGFR) amplification. Here, we performed an integrated comparative analysis of EGFR amplification in 34 glioma samples using standard fluorescence in situ hybridization (FISH) and Illumina EPIC Infinium Methylation Bead Chip and correlated results with molecular glioma hallmarks. We found that the EPIC analysis showed the same power of detecting EGFR amplification compared with FISH. EGFR amplification was detectable in high-grade gliomas (25%). Moreover, EGFR amplification was found to be present solely in IDH wildtype gliomas (26%) and TERT mutated gliomas (27%), occurring independently of MGMT promoter methylation status and being mutually exclusive with 1p/19q codeletion (LOH). In summary, EPIC Bead Chip analysis is a reliable tool for detecting EGFR amplification and is comparable with the standard method FISH. EGFR amplification is a phenomenon of IDH wildtype TERT mutated high-grade gliomas. FAU - Holzl, Dorothee AU - Holzl D AD - Institute of Pathology, University Hospital Salzburg, Paracelsus Medical University, Mullner Hauptstr. 48, A-5020 Salzburg, Austria. FAU - Hutarew, Georg AU - Hutarew G AD - Institute of Pathology, University Hospital Salzburg, Paracelsus Medical University, Mullner Hauptstr. 48, A-5020 Salzburg, Austria. FAU - Zellinger, Barbara AU - Zellinger B AD - Institute of Pathology, University Hospital Salzburg, Paracelsus Medical University, Mullner Hauptstr. 48, A-5020 Salzburg, Austria. FAU - Alinger-Scharinger, Beate AU - Alinger-Scharinger B AD - Institute of Pathology, University Hospital Salzburg, Paracelsus Medical University, Mullner Hauptstr. 48, A-5020 Salzburg, Austria. FAU - Schlicker, Hans U AU - Schlicker HU AD - Institute of Pathology, University Hospital Salzburg, Paracelsus Medical University, Mullner Hauptstr. 48, A-5020 Salzburg, Austria. FAU - Schwartz, Christoph AU - Schwartz C AD - Department of Neurosurgery, University Hospital Salzburg, Paracelsus Medical University, Ignaz-Harrer-Str. 79, A-5020 Salzburg, Austria. FAU - Sotlar, Karl AU - Sotlar K AD - Institute of Pathology, University Hospital Salzburg, Paracelsus Medical University, Mullner Hauptstr. 48, A-5020 Salzburg, Austria. FAU - Kraus, Theo F J AU - Kraus TFJ AUID- ORCID: 0000-0003-2944-5129 AD - Institute of Pathology, University Hospital Salzburg, Paracelsus Medical University, Mullner Hauptstr. 48, A-5020 Salzburg, Austria. LA - eng PT - Journal Article DEP - 20220329 PL - Switzerland TA - Biomedicines JT - Biomedicines JID - 101691304 PMC - PMC9033057 OTO - NOTNLM OT - EGFR OT - EPIC DNA methylation analysis OT - FISH OT - glioblastoma OT - glioma COIS- The authors declare no conflict of interest. EDAT- 2022/04/24 06:00 MHDA- 2022/04/24 06:01 PMCR- 2022/03/29 CRDT- 2022/04/23 01:01 PHST- 2022/02/16 00:00 [received] PHST- 2022/03/24 00:00 [revised] PHST- 2022/03/25 00:00 [accepted] PHST- 2022/04/23 01:01 [entrez] PHST- 2022/04/24 06:00 [pubmed] PHST- 2022/04/24 06:01 [medline] PHST- 2022/03/29 00:00 [pmc-release] AID - biomedicines10040794 [pii] AID - biomedicines-10-00794 [pii] AID - 10.3390/biomedicines10040794 [doi] PST - epublish SO - Biomedicines. 2022 Mar 29;10(4):794. doi: 10.3390/biomedicines10040794.