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Updated: Mar 22, 2026
Reconstruct Human Retinoblastoma In Vitro
Published on: October 11, 2022
Retinoblastoma tumor suppressor functions shared by stem cell and cancer cell strategies
Susumu Kohno1, Shunsuke Kitajima1, Nobunari Sasaki1
1Susumu Kohno, Chiaki Takahashi, Division of Oncology and Molecular Biology, Cancer Research Institute, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan.
Abstract:
Carcinogenic transformation of somatic cells resembles nuclear reprogramming toward the generation of pluripotent stem cells. These events share eternal escape from cellular senescence, continuous self-renewal in limited but certain population of cells, and refractoriness to terminal differentiation while maintaining the potential to differentiate into cells of one or multiple lineages. As represented by several oncogenes those appeared to be first keys to pluripotency, carcinogenesis and nuclear reprogramming seem to share a number of core mechanisms. The retinoblastoma tumor suppressor product retinoblastoma (RB) seems to be critically involved in both events in highly complicated manners. However, disentangling such complicated interactions has enabled us to better understand how stem cell strategies are shared by cancer cells. This review covers recent findings on RB functions related to stem cells and stem cell-like behaviors of cancer cells.
Insights
Cancer cells share mechanisms with stem cells, including escaping senescence and continuous self-renewal. The retinoblastoma (RB) protein plays a complex role in both cancer and stem cell reprogramming.
Area of Science:
- Cellular reprogramming
- Cancer biology
- Stem cell research
Background:
- Carcinogenesis shares similarities with nuclear reprogramming, including escaping senescence and uncontrolled self-renewal.
- Oncogenes involved in pluripotency may also drive carcinogenesis.
- The retinoblastoma (RB) tumor suppressor is implicated in both processes.
Purpose of the Study:
- To review recent findings on the functions of the retinoblastoma (RB) protein.
- To explore the relationship between RB, stem cells, and cancer stem cell-like behaviors.
Main Methods:
- Literature review of recent findings on RB functions.
- Analysis of shared mechanisms between cancer and stem cell reprogramming.
Main Results:
- Carcinogenesis and nuclear reprogramming share core mechanisms like escaping senescence and self-renewal.
- RB plays a complex, critical role in both cancer development and stem cell pluripotency.
- Understanding RB's function clarifies how cancer cells utilize stem cell strategies.
Conclusions:
- Disentangling RB's complex interactions is key to understanding cancer biology.
- RB's role highlights the overlap between cancer and stem cell biology.
- This review provides insights into RB's multifaceted functions in stemness and cancer.
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