MYCN amplification

The RUVBL proteins form a complex with ATPase activity that has broad cellular functions and we demonstrate that pharmacological inhibition of this protein complex results in a strong reduction of MYC(N) signaling, cell-cycle arrest, DNA damage, and apoptosis. We confirmed the association with MYCN and identified the RUVBL genes as independent prognostic biomarkers in human primary neuroblastoma data.

Understanding its complex biology is critical for the development of novel immunotherapies aimed at restoring effective anti-tumor immune responses, particularly in high-risk MYCN-amplified NB. Targeting the CCL2 axis represents a promising strategy to improve NB patient outcomes.

P2, N=94, Recruiting, Memorial Sloan Kettering Cancer Center | Trial completion date: Mar 2026 --> Mar 2027 | Trial primary completion date: Mar 2026 --> Mar 2027

FD metrics derived from contrast-enhanced CT images are significantly associated with established clinical/pathological risk factors and overall survival in pediatric neuroblastoma. FD may serve as a non-invasive imaging biomarker to assist in risk stratification and clinical decision-making.

MYCN gain/amplification was identified in 7.2% of enucleated unilateral retinoblastomas, all of which showed RB1 inactivation. MYCN amplification was associated with more advanced disease and more aggressive clinical and histopathological features.

Clinically, genetic silencing of UBE2C induces ferroptosis and sensitizes tumor cells to the ferroptosis inducer erastin, revealing a therapeutically exploitable vulnerability in MYCN-amplified malignancies. Our study reveals a previously unrecognized MYCN-UBE2C-TFRC-ferroptosis regulatory axis that drives neuroectodermal tumor growth. These findings establish a mechanistic rationale for combining UBE2C silencing and ferroptosis induction as a precision therapeutic strategy against MYCN-amplified tumors.

Owing to the presence of neural tissue, NTRKs are highly positive in IHC, making these genes unsuitable as biomarkers for assessing NTRK inhibitor sensitivity and resistance, which are tissue-agnostic drugs. The observed low fusion rate is consistent with the literature, and the significance of the numerous point mutations identified as agnostic markers warrants further investigation. NTRK expression, fusion, and point mutations were not associated with clinical parameters or survival.

The nanoformulation demonstrated superior antitumor efficacy and a markedly reduced toxicity profile compared to both oral and intravenous commercial formulations. These findings support the potential of nanomedicine-based strategies as safer and more effective alternatives to conventional chemotherapy in neuroblastoma.

The presence of CDK4, CCND2, PDGFRA, PIK3R1, MYCN, and EGFR alterations result in an intermediate patient survival in IDH-mutant astrocytoma. Adding these molecular alterations should be considered in future diagnostic classification systems to improve stratification of high-risk patients.

OBP-702 is a promising antitumor strategy to promote the antitumor effect of ICIs by inducing ICD against NB tumors.

Additionally, MYCN-induced miR-221 was found to suppress CREB expression. Together, these findings demonstrate MYCN-dependent effects of TrkC signalling and highlight the therapeutic potential of targeting the PKA pathway to induce differentiation in high-risk MYCN-amplified neuroblastoma.