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Updated: Jun 9, 2026

Analysis of Cell Cycle Position in Mammalian Cells
12:19

Analysis of Cell Cycle Position in Mammalian Cells

Published on: January 21, 2012

BIRC5 drives cell-cycle dysregulation and represents a novel molecular target in retinoblastoma

Yingtong Chen1, Xiaohan Li2, Fuhua Zhong3

  • 1The Second Clinical Medical College of Jinan University, Department of Ophthalmology, Shenzhen People's Hospital, Shenzhen, Guangdong, China.

Frontiers in Oncology
|June 8, 2026
PubMed
Abstract

Insights

This study identifies BIRC5 (survivin) as a key driver of aggressive retinoblastoma cell proliferation. Targeting survivin offers a potential therapeutic strategy for this rare pediatric cancer.

Area of Science:

  • Oncology
  • Genetics
  • Molecular Biology

Background:

  • Retinoblastoma is the most common pediatric intraocular cancer.
  • Molecular drivers of aggressive retinoblastoma cell states are not fully understood.

Purpose of the Study:

  • Identify molecular regulators of retinoblastoma progression.
  • Discover therapeutic targets for aggressive retinoblastoma.

Main Methods:

  • Single-cell RNA sequencing of 13 retinoblastoma tumors.
  • Functional validation of BIRC5 (survivin) in retinoblastoma cell lines.

Main Results:

  • Identified proliferative retinoblastoma subpopulations with G2/M-phase gene enrichment.
  • BIRC5 (survivin) is overexpressed in proliferative cells, promoting proliferation and invasion.
  • BIRC5 knockdown induced cell cycle arrest and apoptosis.

Conclusions:

  • BIRC5 (survivin) is a cell-state-specific regulator of retinoblastoma proliferation.
  • Targeting survivin is a potential therapeutic strategy for retinoblastoma.
Keywords:
BIRC5 (Survivin)cell cycle dysregulationmolecular targeted therapyretinoblastomasingle-cell RNA sequencing

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