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Tailoring In Vivo Cytotoxicity Assays to Study Immunodominance in Tumor-specific CD8+ T Cell Responses
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Inhibition of CDK1 Promotes Immunogenic Cell Death in Neuroblastoma

Yiquan Li1, Tianyun Lan2, Rongpu Liang1

  • 1Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, People's Republic of China.

Cancer Management and Research
|March 16, 2026
PubMed
Abstract

Insights

Inhibition of CDK1 slows neuroblastoma growth and promotes immunogenic cell death. This suggests CDK1 is a potential target for improving immunotherapy in neuroblastoma patients.

Area of Science:

  • Oncology
  • Immunology
  • Molecular Biology

Background:

  • Neuroblastoma utilizes immune evasion strategies, necessitating immunotherapy research.
  • Cyclin-dependent kinase 1 (CDK1) is implicated in cell cycle regulation and aberrant in tumors, but its role in neuroblastoma and immunogenic cell death is unknown.

Purpose of the Study:

  • To investigate the prognostic significance of CDK1 expression in neuroblastoma.
  • To explore the relationship between CDK1 expression, immune infiltration, and cytokine levels.
  • To evaluate the therapeutic potential of CDK1 inhibition in neuroblastoma.

Main Methods:

  • Analysis of CDK1 expression in neuroblastoma using TCGA database and tissue arrays.
  • Assessment of correlations between CDK1, immune cell infiltration, and cytokine profiles.
  • In vitro and in vivo studies on the effects of a CDK1 inhibitor (RO-3306).

Main Results:

  • CDK1 is overexpressed in advanced neuroblastoma, correlating with poor prognosis.
  • High CDK1 expression is linked to reduced immune cell infiltration and lower effector cytokine levels (IL-12, IFN-γ, IRF1).
  • CDK1 inhibition suppressed neuroblastoma growth and induced immunogenic cell death, characterized by CRT exposure, HSP70, and HMGB1 release.

Conclusions:

  • CDK1 inhibition hinders neuroblastoma progression and induces damage-associated molecular patterns (DAMPs), promoting immune activation.
  • CDK1 represents a potential prognostic biomarker and therapeutic target to enhance immunotherapy effectiveness in neuroblastoma.
Keywords:
CDK1immunogenic cell deathneuroblastoma

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