- Prognostic role of ALK-1 and h-TERT expression in glioblastoma multiforme: correlation with ALK gene alterations
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Dalia Elsers, Doaa F. Temerik, Alia M. Attia, A. Hadia, Marwa T. Hussien
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J Pathol Transl Med. 2021;55(3):212-224. Published online May 11, 2021
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DOI: https://doi.org/10.4132/jptm.2021.03.15
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 Abstract
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- Background
Anaplastic lymphoma kinase (ALK) is a receptor tyrosine kinase that is expressed in the developing central and peripheral nervous systems during embryogenesis. Human telomerase reverse transcriptase (h-TERT) protein resumption is the main process of preservation of telomeres that maintains DNA integrity. The present study aims to evaluate the prognostic role of ALK-1 and h-TERT protein expression and their correlation with ALK gene alterations in glioblastoma multiforme (GBM).
Methods
The current study is a retrospective study on a cohort of patients with GBM (n = 53) that attempted to detect ALK gene alterations using fluorescence in situ hybridization. ALK-1 and h-TERT proteins were evaluated using immunohistochemistry.
Results
Score 3 ALK-1 expression was significantly associated with male sex, tumor multiplicity, Ki labeling index (Ki LI), and type of therapeutic modality. Score 3 h-TERT expression exhibited a significant association with Ki LI. ALK gene amplifications (ALK-A) were significantly associated with increased Ki LI and therapeutic modalities. Score 3 ALK-1 protein expression, score 3 h-TERT protein expression, and ALK-A were associated with poor overall survival (OS) and progression-free survival (PFS). Multivariate analysis for OS revealed that ALK gene alterations were an independent prognostic factor for OS and PFS.
Conclusions
High protein expression of both ALK-1 and h-TERT, as well as ALK-A had a poor impact on the prognosis of GBM. Further studies are needed to establish the underlying mechanisms.
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Citations
Citations to this article as recorded by  - Mapping chromatin remodelling in glioblastoma identifies epigenetic regulation of key molecular pathways and novel druggable targets
Claire Vinel, James Boot, Weiwei Jin, Nicola Pomella, Alexandra Hadaway, Charles Mein, Nicolae Radu Zabet, Silvia Marino
BMC Biology.2025;[Epub] CrossRef - TERT Gene Mutation in Gliomas Cross‐Linked With (NTRK, PDL1, ALK, IDH, P53, EGFR, HER2): A Integrative Review TERT Gene Mutation in Gliomas
Gunter Gerson Santos, Guilherme Nobre Nogueira, Iasmin Maria Rodrigues Saldanha, Ana Gabriela Ponte Farias, Cauan Miranda Mateus, Osvaldo Mariano Viana Neto, Maria Jânia Teixeira
Journal of Surgical Oncology.2024;[Epub] CrossRef - Association of human telomerase reverse transcriptase promoter mutation with unfavorable prognosis in glioma: A systematic review and meta-analysis
Rongxuan Hua, Qiuxuan Li, Han Gao, Boya Wang, Chengwei He, Ying Wang, Sitian Zhang, Lei Gao, Hongwei Shang, Wen Wang, Jingdong Xu
Journal of Research in Medical Sciences.2023;[Epub] CrossRef - Immunohistochemical surrogates for molecular alterations for the classification and grading of gliomas
Viharkumar Patel, Sanda Alexandrescu
Seminars in Diagnostic Pathology.2022; 39(1): 78. CrossRef - Meme Kanseri Hastalarında hTERT Gen Ekspresyonunun Klinikopatolojik Önemi
Ebubekir DİRİCAN, Burak KANKAYA, Zeynep TATAR
Sağlık Bilimlerinde Değer.2022; 12(1): 22. CrossRef - Prognostic and predictive markers in glioblastoma and ALK overexpression
Jang-Hee Kim
Journal of Pathology and Translational Medicine.2021; 55(3): 236. CrossRef
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