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@ARTICLE{AvinentPrez:296075,
author = {M. Avinent-Pérez$^*$ and F. Westermann$^*$ and S. Navarro
and A. López-Carrasco and R. Noguera},
title = {{T}ackling {ALT}-positive neuroblastoma: is it time to
redefine risk classification systems? {A} systematic review
with {IPD} meta-analysis.},
journal = {Neoplasia},
volume = {60},
issn = {1522-8002},
address = {Basingstoke},
publisher = {Stockton Press},
reportid = {DKFZ-2025-00023},
pages = {101106},
year = {2025},
note = {#EA:B087#},
abstract = {The heterogeneous prognosis in neuroblastoma, shaped by
telomere maintenance mechanisms (TMMs), notably the
alternative lengthening of telomeres (ALT) pathway,
necessitates a refined risk classification for high-risk
patients. Current systems often lack precision, hindering
tailored treatment approaches. This individual participant
data (IPD) meta-analysis of survival among ALT-positive
patients aims to improve risk classification systems,
enhancing therapeutic strategies and patient
outcomes.Following PRISMA-IPD guidelines, we conducted a
comprehensive review of neuroblastoma patients retrieved
from PubMed, Scopus, and Embase databases until March-2024.
Patients were stratified into ALT-positive and TMM-negative
subgroups. Overall and event-free survival probabilities
were evaluated.In our cohort of 293 patients (156
ALT-positive, 137 TMM-negative) obtained from eight
different studies, ALT-positive individuals displayed lower
survival rates than TMM-negative patients. Non-stage 4
ALT-positive patients had reduced overall and event-free
survival probabilities compared to their TMM-negative
counterparts, indicating potential misclassification. Stage
4 ALT-positive patients similarly showed poorer survival
outcomes than non-stage 4 TMM-negative patients,
underscoring the significance of ALT in patient
prognosis.Our study highlights poorer outcomes in
ALT-positive neuroblastoma patients, emphasizing the need to
integrate TMM status into international risk classification
guidelines. Standardizing TMM assessment is key for refining
treatment strategies, considering the unique biology of
ALT-positive patients.},
subtyp = {Review Article},
keywords = {Childhood cancer (Other) / Prognosis biomarker (Other) /
Survival (Other) / Telomere maintenance mechanisms (Other) /
Therapeutic strategies (Other)},
cin = {B087},
ddc = {610},
cid = {I:(DE-He78)B087-20160331},
pnm = {312 - Funktionelle und strukturelle Genomforschung
(POF4-312)},
pid = {G:(DE-HGF)POF4-312},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:39733691},
doi = {10.1016/j.neo.2024.101106},
url = {https://inrepo02.dkfz.de/record/296075},
}